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<a href="../../d3/d8f/mem_8c.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>  </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"> * Copyright (c) 2001-2004 Swedish Institute of Computer Science.</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> * All rights reserved.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> * Redistribution and use in source and binary forms, with or without modification,</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment"> * are permitted provided that the following conditions are met:</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment"> * 1. Redistributions of source code must retain the above copyright notice,</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * this list of conditions and the following disclaimer.</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright notice,</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * this list of conditions and the following disclaimer in the documentation</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * and/or other materials provided with the distribution.</span></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * 3. The name of the author may not be used to endorse or promote products</span></div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> * derived from this software without specific prior written permission.</span></div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span></div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span></div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT</span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span></div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS</span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * OF SUCH DAMAGE.</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * This file is part of the lwIP TCP/IP stack.</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"> * Author: Adam Dunkels <adam@sics.se></span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> * Simon Goldschmidt</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="preprocessor">#include "<a class="code" href="../../dc/dba/opt_8h.html">net/opt.h</a>"</span></div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d9a/mem_8h.html">net/mem.h</a>"</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="preprocessor">#include "<a class="code" href="../../d4/da4/def_8h.html">net/def.h</a>"</span></div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d87/sys_8h.html">net/sys.h</a>"</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="preprocessor">#include "<a class="code" href="../../d9/d9b/stats_8h.html">net/stats.h</a>"</span></div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="preprocessor">#include "<a class="code" href="../../d6/d40/err_8h.html">net/err.h</a>"</span></div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="preprocessor">#include <<a class="code" href="../../da/d66/string_8h.html">string.h</a>></span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#if MEM_LIBC_MALLOC</span></div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="preprocessor">#include <stdlib.h></span> <span class="comment">/* for malloc()/free() */</span></div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="preprocessor">#if MEM_LIBC_MALLOC || MEM_USE_POOLS</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  </div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <a class="code" href="../../d3/d8f/mem_8c.html#a44a136e3b70c36abb6f8dc060c778113">mem_init</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span> }</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="keywordtype">void</span>*</div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <a class="code" href="../../d3/d8f/mem_8c.html#a2f0214c1c0d4acf856fb3ec76818a5a9">mem_trim</a>(<span class="keywordtype">void</span> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>, <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> {</div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a>(size);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  <span class="keywordflow">return</span> <a class="code" href="../../d0/d0f/structmem.html">mem</a>;</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span> }</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#endif </span><span class="comment">/* MEM_LIBC_MALLOC || MEM_USE_POOLS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor">#if MEM_LIBC_MALLOC</span></div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment">/* lwIP heap implemented using C library malloc() */</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment">/* in case C library malloc() needs extra protection,</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="comment"> * allow these defines to be overridden.</span></div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> <span class="preprocessor">#ifndef mem_clib_free</span></div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor">#define mem_clib_free free</span></div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor">#ifndef mem_clib_malloc</span></div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor">#define mem_clib_malloc malloc</span></div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor">#ifndef mem_clib_calloc</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="preprocessor">#define mem_clib_calloc calloc</span></div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  </div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="preprocessor">#if LWIP_STATS && MEM_STATS</span></div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="preprocessor">#define MEM_LIBC_STATSHELPER_SIZE LWIP_MEM_ALIGN_SIZE(sizeof(mem_size_t))</span></div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="preprocessor">#else</span></div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="preprocessor">#define MEM_LIBC_STATSHELPER_SIZE 0</span></div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  </div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <a class="code" href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335">mem_malloc</a>(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span> {</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keywordtype">void</span>* ret = mem_clib_malloc(size + MEM_LIBC_STATSHELPER_SIZE);</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="keywordflow">if</span> (ret == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(err);</div>
<div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"malloc() must return aligned memory"</span>, <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(ret) == ret);</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span> <span class="preprocessor">#if LWIP_STATS && MEM_STATS</span></div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  *(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>*)ret = size;</div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  ret = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ret + MEM_LIBC_STATSHELPER_SIZE;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aefec777cb83885b2f399afb661cf3837">MEM_STATS_INC_USED</a>(used, size);</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  }</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span> }</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  </div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span> <a class="code" href="../../d3/d8f/mem_8c.html#a65169147c44e9db60d997819af9b455c">mem_free</a>(<span class="keywordtype">void</span> *rmem)</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span> {</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"rmem != NULL"</span>, (rmem != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"rmem == MEM_ALIGN(rmem)"</span>, (rmem == <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(rmem)));</div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span> <span class="preprocessor">#if LWIP_STATS && MEM_STATS</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  rmem = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rmem - MEM_LIBC_STATSHELPER_SIZE;</div>
<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a>(used, *(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>*)rmem);</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  mem_clib_free(rmem);</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span> }</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  </div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> <span class="preprocessor">#elif MEM_USE_POOLS</span></div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  </div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span> <span class="comment">/* lwIP heap implemented with different sized pools */</span></div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  </div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span> <a class="code" href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335">mem_malloc</a>(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span> {</div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">void</span> *ret;</div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keyword">struct </span>memp_malloc_helper *element = <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  <a class="code" href="../../df/dff/memp_8h.html#a85a164b1f7764951cc685ea525114e57">memp_t</a> poolnr;</div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> required_size = size + <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> memp_malloc_helper));</div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  </div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keywordflow">for</span> (poolnr = MEMP_POOL_FIRST; poolnr <= MEMP_POOL_LAST; poolnr = (<a class="code" href="../../df/dff/memp_8h.html#a85a164b1f7764951cc685ea525114e57">memp_t</a>)(poolnr + 1)) {</div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="comment">/* is this pool big enough to hold an element of the required size</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span> <span class="comment"> plus a struct memp_malloc_helper that saves the pool this element came from? */</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (required_size <= <a class="code" href="../../df/dff/memp_8h.html#ad78a1f656a766f2c6341aa466762b883">memp_pools</a>[poolnr]->size) {</div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  element = (<span class="keyword">struct </span>memp_malloc_helper*)<a class="code" href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a>(poolnr);</div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  <span class="keywordflow">if</span> (element == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  <span class="comment">/* No need to DEBUGF or ASSERT: This error is already taken care of in memp.c */</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span> <span class="preprocessor">#if MEM_USE_POOLS_TRY_BIGGER_POOL</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  </div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  <span class="keywordflow">if</span> (poolnr < MEMP_POOL_LAST) {</div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="keywordflow">continue</span>;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  }</div>
<div class="line"><a name="l00185"></a><span class="lineno"> 185</span> <span class="preprocessor">#endif </span><span class="comment">/* MEM_USE_POOLS_TRY_BIGGER_POOL */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(err);</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  }</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  }</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  }</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  <span class="keywordflow">if</span> (poolnr > MEMP_POOL_LAST) {</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_malloc(): no pool is that big!"</span>, 0);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(err);</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  }</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  </div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="comment">/* save the pool number this element came from */</span></div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  element->poolnr = poolnr;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  <span class="comment">/* and return a pointer to the memory directly after the struct memp_malloc_helper */</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  ret = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)element + <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> memp_malloc_helper));</div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  </div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span> <span class="preprocessor">#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS)</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="comment">/* truncating to u16_t is safe because struct memp_desc::size is u16_t */</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  element->size = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a>)size;</div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aefec777cb83885b2f399afb661cf3837">MEM_STATS_INC_USED</a>(used, element->size);</div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span> <span class="preprocessor">#endif </span><span class="comment">/* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> <span class="preprocessor">#if MEMP_OVERFLOW_CHECK</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  <span class="comment">/* initialize unused memory (diff between requested size and selected pool's size) */</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  <a class="code" href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a>((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)ret + size, 0xcd, <a class="code" href="../../df/dff/memp_8h.html#ad78a1f656a766f2c6341aa466762b883">memp_pools</a>[poolnr]->size - size);</div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span> <span class="preprocessor">#endif </span><span class="comment">/* MEMP_OVERFLOW_CHECK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span> }</div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  </div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span> <a class="code" href="../../d3/d8f/mem_8c.html#a65169147c44e9db60d997819af9b455c">mem_free</a>(<span class="keywordtype">void</span> *rmem)</div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span> {</div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  <span class="keyword">struct </span>memp_malloc_helper *hmem;</div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  </div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"rmem != NULL"</span>, (rmem != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"rmem == MEM_ALIGN(rmem)"</span>, (rmem == <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(rmem)));</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  </div>
<div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">/* get the original struct memp_malloc_helper */</span></div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">/* cast through void* to get rid of alignment warnings */</span></div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  hmem = (<span class="keyword">struct </span>memp_malloc_helper*)(<span class="keywordtype">void</span>*)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rmem - <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> memp_malloc_helper)));</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  </div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"hmem != NULL"</span>, (hmem != <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>));</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"hmem == MEM_ALIGN(hmem)"</span>, (hmem == <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(hmem)));</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"hmem->poolnr < MEMP_MAX"</span>, (hmem->poolnr < <a class="code" href="../../df/dff/memp_8h.html#a85a164b1f7764951cc685ea525114e57a3387042084427642949f3223c7ddd321">MEMP_MAX</a>));</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  </div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a>(used, hmem->size);</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span> <span class="preprocessor">#if MEMP_OVERFLOW_CHECK</span></div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> i;</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"MEM_USE_POOLS: invalid chunk size"</span>,</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  hmem->size <= <a class="code" href="../../df/dff/memp_8h.html#ad78a1f656a766f2c6341aa466762b883">memp_pools</a>[hmem->poolnr]-><a class="code" href="../../d5/ddd/structmemp__desc.html#a1688d2bdd5a7b77700e1fa627f025ba3">size</a>);</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="comment">/* check that unused memory remained untouched (diff between requested size and selected pool's size) */</span></div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  <span class="keywordflow">for</span> (i = hmem->size; i < <a class="code" href="../../df/dff/memp_8h.html#ad78a1f656a766f2c6341aa466762b883">memp_pools</a>[hmem->poolnr]-><a class="code" href="../../d5/ddd/structmemp__desc.html#a1688d2bdd5a7b77700e1fa627f025ba3">size</a>; i++) {</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> data = *((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a>*)rmem + i);</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"MEM_USE_POOLS: mem overflow detected"</span>, data == 0xcd);</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> <span class="preprocessor">#endif </span><span class="comment">/* MEMP_OVERFLOW_CHECK */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>  </div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="comment">/* and put it in the pool we saved earlier */</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <a class="code" href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a>(hmem->poolnr, hmem);</div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span> }</div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  </div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span> <span class="preprocessor">#else </span><span class="comment">/* MEM_USE_POOLS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span> <span class="comment">/* lwIP replacement for your libc malloc() */</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  </div>
<div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="../../d0/d0f/structmem.html"> 264</a></span> <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> {</div>
<div class="line"><a name="l00266"></a><span class="lineno"><a class="line" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf"> 266</a></span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> <a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00268"></a><span class="lineno"><a class="line" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac"> 268</a></span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> <a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a>;</div>
<div class="line"><a name="l00270"></a><span class="lineno"><a class="line" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456"> 270</a></span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> <a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>;</div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> };</div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  </div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="preprocessor">#ifndef MIN_SIZE</span></div>
<div class="line"><a name="l00277"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a278694c2333c9826f21ddd2c2d220f66"> 277</a></span> <span class="preprocessor">#define MIN_SIZE 12</span></div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="preprocessor">#endif </span><span class="comment">/* MIN_SIZE */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="comment">/* some alignment macros: we define them here for better source code layout */</span></div>
<div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd"> 280</a></span> <span class="preprocessor">#define MIN_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MIN_SIZE)</span></div>
<div class="line"><a name="l00281"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c"> 281</a></span> <span class="preprocessor">#define SIZEOF_STRUCT_MEM LWIP_MEM_ALIGN_SIZE(sizeof(struct mem))</span></div>
<div class="line"><a name="l00282"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a"> 282</a></span> <span class="preprocessor">#define MEM_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SIZE)</span></div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>  </div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor">#ifndef LWIP_RAM_HEAP_POINTER</span></div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>  </div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <a class="code" href="../../d3/d8f/mem_8c.html#aa33f9b7cf221a9cde8fa715a51d3bfc7">LWIP_DECLARE_MEMORY_ALIGNED</a>(ram_heap, <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a> + (2U*<a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>));</div>
<div class="line"><a name="l00291"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a4fa8ffb4c7a8b4c0404ad4278cc801d0"> 291</a></span> <span class="preprocessor">#define LWIP_RAM_HEAP_POINTER ram_heap</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_RAM_HEAP_POINTER */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>  </div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="keyword">static</span> <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *ram;</div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *ram_end;</div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span> <span class="keyword">static</span> <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *lfree;</div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  </div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span> <span class="preprocessor">#if !NO_SYS</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span> <span class="keyword">static</span> <a class="code" href="../../d2/d0f/structsys__mutex.html">sys_mutex_t</a> mem_mutex;</div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span> <span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  </div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  </div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span> <span class="keyword">static</span> <span class="keyword">volatile</span> <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> mem_free_count;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>  </div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="comment">/* Allow mem_free from other (e.g. interrupt) context */</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span> <span class="preprocessor">#define LWIP_MEM_FREE_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_free)</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> <span class="preprocessor">#define LWIP_MEM_FREE_PROTECT() SYS_ARCH_PROTECT(lev_free)</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="preprocessor">#define LWIP_MEM_FREE_UNPROTECT() SYS_ARCH_UNPROTECT(lev_free)</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span> <span class="preprocessor">#define LWIP_MEM_ALLOC_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_alloc)</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span> <span class="preprocessor">#define LWIP_MEM_ALLOC_PROTECT() SYS_ARCH_PROTECT(lev_alloc)</span></div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span> <span class="preprocessor">#define LWIP_MEM_ALLOC_UNPROTECT() SYS_ARCH_UNPROTECT(lev_alloc)</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  </div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span> <span class="preprocessor">#else </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  </div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> <span class="comment">/* Protect the heap only by using a semaphore */</span></div>
<div class="line"><a name="l00321"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a581c4edded02d92caf7a938c801a618e"> 321</a></span> <span class="preprocessor">#define LWIP_MEM_FREE_DECL_PROTECT()</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#aef413072690259b59ce27e49df19e307"> 322</a></span> <span class="preprocessor">#define LWIP_MEM_FREE_PROTECT() sys_mutex_lock(&mem_mutex)</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#aa8a24c0593943bb1e64c1243dddfae50"> 323</a></span> <span class="preprocessor">#define LWIP_MEM_FREE_UNPROTECT() sys_mutex_unlock(&mem_mutex)</span></div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span> <span class="comment">/* mem_malloc is protected using semaphore AND LWIP_MEM_ALLOC_PROTECT */</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a016a07ea84e1d75386765b90015b6698"> 325</a></span> <span class="preprocessor">#define LWIP_MEM_ALLOC_DECL_PROTECT()</span></div>
<div class="line"><a name="l00326"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a3c644ac3ac94ed977bb165eeb6ff741a"> 326</a></span> <span class="preprocessor">#define LWIP_MEM_ALLOC_PROTECT()</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a"> 327</a></span> <span class="preprocessor">#define LWIP_MEM_ALLOC_UNPROTECT()</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  </div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  </div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  </div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span> <span class="keyword">static</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span> plug_holes(<span class="keyword">struct</span> <a class="code" href="../../d0/d0f/structmem.html">mem</a> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>)</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span> {</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *nmem;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *pmem;</div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  </div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"plug_holes: mem >= ram"</span>, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> >= ram);</div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"plug_holes: mem < ram_end"</span>, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> < (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end);</div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"plug_holes: mem->used == 0"</span>, <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> == 0);</div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  </div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>  <span class="comment">/* plug hole forward */</span></div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"plug_holes: mem->next <= MEM_SIZE_ALIGNED"</span>, <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> <= <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>);</div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  </div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  nmem = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>];</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d0f/structmem.html">mem</a> != nmem && nmem-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> == 0 && (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)nmem != (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end) {</div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  <span class="comment">/* if mem->next is unused and not end of ram, combine mem and mem->next */</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  <span class="keywordflow">if</span> (lfree == nmem) {</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  lfree = <a class="code" href="../../d0/d0f/structmem.html">mem</a>;</div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  }</div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = nmem-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[nmem-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>])-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> - ram);</div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  }</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>  </div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="comment">/* plug hole backward */</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  pmem = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a>];</div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  <span class="keywordflow">if</span> (pmem != <a class="code" href="../../d0/d0f/structmem.html">mem</a> && pmem-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> == 0) {</div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="comment">/* if mem->prev is unused, combine mem and mem->prev */</span></div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  <span class="keywordflow">if</span> (lfree == <a class="code" href="../../d0/d0f/structmem.html">mem</a>) {</div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  lfree = pmem;</div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  }</div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  pmem-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>])-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)pmem - ram);</div>
<div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  }</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span> }</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  </div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00382"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a44a136e3b70c36abb6f8dc060c778113"> 382</a></span> <a class="code" href="../../d3/d8f/mem_8c.html#a44a136e3b70c36abb6f8dc060c778113">mem_init</a>(<span class="keywordtype">void</span>)</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span> {</div>
<div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>;</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  </div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"Sanity check alignment"</span>,</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  (<a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> & (<a class="code" href="../../d2/d78/lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a>-1)) == 0);</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  </div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  <span class="comment">/* align the heap */</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  ram = (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a>(<a class="code" href="../../d3/d8f/mem_8c.html#a4fa8ffb4c7a8b4c0404ad4278cc801d0">LWIP_RAM_HEAP_POINTER</a>);</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  <span class="comment">/* initialize the start of the heap */</span></div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a> = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)ram;</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>;</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = 0;</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 0;</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  <span class="comment">/* initialize the end of the heap */</span></div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>  ram_end = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[<a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>];</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  ram_end-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 1;</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  ram_end-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>;</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  ram_end-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>;</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  </div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  <span class="comment">/* initialize the lowest-free pointer to the start of the heap */</span></div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  lfree = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)ram;</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  </div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a6ca3d10f92a30f5435aace26fa7d6020">MEM_STATS_AVAIL</a>(avail, <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>);</div>
<div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  </div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d8/d3b/group__sys__mutex.html#ga38e7dae1fd88b338eb1cd97f110f3897">sys_mutex_new</a>(&mem_mutex) != <a class="code" href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a>) {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"failed to create mem_mutex"</span>, 0);</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  }</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span> }</div>
<div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  </div>
<div class="line"><a name="l00418"></a><span class="lineno"> 418</span> <span class="keywordtype">void</span></div>
<div class="line"><a name="l00419"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a65169147c44e9db60d997819af9b455c"> 419</a></span> <a class="code" href="../../d3/d8f/mem_8c.html#a65169147c44e9db60d997819af9b455c">mem_free</a>(<span class="keywordtype">void</span> *rmem)</div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span> {</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a581c4edded02d92caf7a938c801a618e">LWIP_MEM_FREE_DECL_PROTECT</a>();</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  </div>
<div class="line"><a name="l00424"></a><span class="lineno"> 424</span>  <span class="keywordflow">if</span> (rmem == <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>) {</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  <a class="code" href="../../db/d16/debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="../../d2/d78/lwipopts_8h.html#a2d7bc380695eeedb1af50c3808613afe">MEM_DEBUG</a> | <a class="code" href="../../d6/d7a/group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a> | <a class="code" href="../../d6/d7a/group__debugging__levels.html#ga0269bdc51f1e8a5ecf9af72c6e1c996c">LWIP_DBG_LEVEL_SERIOUS</a>, (<span class="stringliteral">"mem_free(p == NULL) was called.\n"</span>));</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  }</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_free: sanity check alignment"</span>, (((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a>)rmem) & (<a class="code" href="../../d2/d78/lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a>-1)) == 0);</div>
<div class="line"><a name="l00429"></a><span class="lineno"> 429</span>  </div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_free: legal memory"</span>, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem >= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram &&</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem < (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end);</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  </div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordflow">if</span> ((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem < (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram || (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem >= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end) {</div>
<div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  <a class="code" href="../../d9/d87/sys_8h.html#a945395fa326214fc9736487242710a90">SYS_ARCH_DECL_PROTECT</a>(lev);</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  <a class="code" href="../../db/d16/debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="../../d2/d78/lwipopts_8h.html#a2d7bc380695eeedb1af50c3808613afe">MEM_DEBUG</a> | <a class="code" href="../../d6/d7a/group__debugging__levels.html#gaab41143277cd38047b6660d90e9cec3b">LWIP_DBG_LEVEL_SEVERE</a>, (<span class="stringliteral">"mem_free: illegal memory\n"</span>));</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  <span class="comment">/* protect mem stats from concurrent access */</span></div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  <a class="code" href="../../d9/d87/sys_8h.html#a3d0e48feafd378e9c26c64567ecd8bab">SYS_ARCH_PROTECT</a>(lev);</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(illegal);</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>  <a class="code" href="../../d9/d87/sys_8h.html#a2f48e97047945642ddeb27e65bf4ffe2">SYS_ARCH_UNPROTECT</a>(lev);</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  }</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  <span class="comment">/* protect the heap from concurrent access */</span></div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <a class="code" href="../../d3/d8f/mem_8c.html#aef413072690259b59ce27e49df19e307">LWIP_MEM_FREE_PROTECT</a>();</div>
<div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  <span class="comment">/* Get the corresponding struct mem ... */</span></div>
<div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">/* cast through void* to get rid of alignment warnings */</span></div>
<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a> = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem - <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>);</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>  <span class="comment">/* ... which has to be in a used state ... */</span></div>
<div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_free: mem->used"</span>, <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>);</div>
<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="comment">/* ... and is now unused. */</span></div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 0;</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  </div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d0f/structmem.html">mem</a> < lfree) {</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <span class="comment">/* the newly freed struct is now the lowest */</span></div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  lfree = <a class="code" href="../../d0/d0f/structmem.html">mem</a>;</div>
<div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  }</div>
<div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  </div>
<div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a>(<a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>, <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> - (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)(((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> - ram)));</div>
<div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  </div>
<div class="line"><a name="l00459"></a><span class="lineno"> 459</span>  <span class="comment">/* finally, see if prev or next are free also */</span></div>
<div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  plug_holes(<a class="code" href="../../d0/d0f/structmem.html">mem</a>);</div>
<div class="line"><a name="l00461"></a><span class="lineno"> 461</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  mem_free_count = 1;</div>
<div class="line"><a name="l00463"></a><span class="lineno"> 463</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  <a class="code" href="../../d3/d8f/mem_8c.html#aa8a24c0593943bb1e64c1243dddfae50">LWIP_MEM_FREE_UNPROTECT</a>();</div>
<div class="line"><a name="l00465"></a><span class="lineno"> 465</span> }</div>
<div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  </div>
<div class="line"><a name="l00477"></a><span class="lineno"> 477</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00478"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a2f0214c1c0d4acf856fb3ec76818a5a9"> 478</a></span> <a class="code" href="../../d3/d8f/mem_8c.html#a2f0214c1c0d4acf856fb3ec76818a5a9">mem_trim</a>(<span class="keywordtype">void</span> *rmem, <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> newsize)</div>
<div class="line"><a name="l00479"></a><span class="lineno"> 479</span> {</div>
<div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size;</div>
<div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> ptr, ptr2;</div>
<div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>, *mem2;</div>
<div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  <span class="comment">/* use the FREE_PROTECT here: it protects with sem OR SYS_ARCH_PROTECT */</span></div>
<div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a581c4edded02d92caf7a938c801a618e">LWIP_MEM_FREE_DECL_PROTECT</a>();</div>
<div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  </div>
<div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  <span class="comment">/* Expand the size of the allocated memory region so that we can</span></div>
<div class="line"><a name="l00487"></a><span class="lineno"> 487</span> <span class="comment"> adjust for alignment. */</span></div>
<div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  newsize = <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(newsize);</div>
<div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  </div>
<div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  <span class="keywordflow">if</span> (newsize < <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="comment">/* every data block must be at least MIN_SIZE_ALIGNED long */</span></div>
<div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  newsize = <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a>;</div>
<div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  }</div>
<div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  </div>
<div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  <span class="keywordflow">if</span> (newsize > <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00497"></a><span class="lineno"> 497</span>  }</div>
<div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  </div>
<div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_trim: legal memory"</span>, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem >= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram &&</div>
<div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem < (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end);</div>
<div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  </div>
<div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  <span class="keywordflow">if</span> ((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem < (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram || (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem >= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)ram_end) {</div>
<div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  <a class="code" href="../../d9/d87/sys_8h.html#a945395fa326214fc9736487242710a90">SYS_ARCH_DECL_PROTECT</a>(lev);</div>
<div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <a class="code" href="../../db/d16/debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="../../d2/d78/lwipopts_8h.html#a2d7bc380695eeedb1af50c3808613afe">MEM_DEBUG</a> | <a class="code" href="../../d6/d7a/group__debugging__levels.html#gaab41143277cd38047b6660d90e9cec3b">LWIP_DBG_LEVEL_SEVERE</a>, (<span class="stringliteral">"mem_trim: illegal memory\n"</span>));</div>
<div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <span class="comment">/* protect mem stats from concurrent access */</span></div>
<div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  <a class="code" href="../../d9/d87/sys_8h.html#a3d0e48feafd378e9c26c64567ecd8bab">SYS_ARCH_PROTECT</a>(lev);</div>
<div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(illegal);</div>
<div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  <a class="code" href="../../d9/d87/sys_8h.html#a2f48e97047945642ddeb27e65bf4ffe2">SYS_ARCH_UNPROTECT</a>(lev);</div>
<div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  <span class="keywordflow">return</span> rmem;</div>
<div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  }</div>
<div class="line"><a name="l00511"></a><span class="lineno"> 511</span>  <span class="comment">/* Get the corresponding struct mem ... */</span></div>
<div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="comment">/* cast through void* to get rid of alignment warnings */</span></div>
<div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a> = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)rmem - <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>);</div>
<div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  <span class="comment">/* ... and its offset pointer */</span></div>
<div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  ptr = (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> - ram);</div>
<div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  </div>
<div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  size = <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> - ptr - <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>;</div>
<div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_trim can only shrink memory"</span>, newsize <= size);</div>
<div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  <span class="keywordflow">if</span> (newsize > size) {</div>
<div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  <span class="comment">/* not supported */</span></div>
<div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00522"></a><span class="lineno"> 522</span>  }</div>
<div class="line"><a name="l00523"></a><span class="lineno"> 523</span>  <span class="keywordflow">if</span> (newsize == size) {</div>
<div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="comment">/* No change in size, simply return */</span></div>
<div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keywordflow">return</span> rmem;</div>
<div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  }</div>
<div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  </div>
<div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  <span class="comment">/* protect the heap from concurrent access */</span></div>
<div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  <a class="code" href="../../d3/d8f/mem_8c.html#aef413072690259b59ce27e49df19e307">LWIP_MEM_FREE_PROTECT</a>();</div>
<div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  </div>
<div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  mem2 = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>];</div>
<div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <span class="keywordflow">if</span> (mem2-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> == 0) {</div>
<div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="comment">/* The next struct is unused, we can simply move it at little */</span></div>
<div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> <a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00535"></a><span class="lineno"> 535</span>  <span class="comment">/* remember the old next pointer */</span></div>
<div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  <a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  <span class="comment">/* create new struct mem which is moved directly after the shrinked mem */</span></div>
<div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  ptr2 = ptr + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + newsize;</div>
<div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  <span class="keywordflow">if</span> (lfree == mem2) {</div>
<div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  lfree = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr2];</div>
<div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  }</div>
<div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  mem2 = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr2];</div>
<div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 0;</div>
<div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  <span class="comment">/* restore the next pointer */</span></div>
<div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="comment">/* link it back to mem */</span></div>
<div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr;</div>
<div class="line"><a name="l00548"></a><span class="lineno"> 548</span>  <span class="comment">/* link mem to it */</span></div>
<div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = ptr2;</div>
<div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="comment">/* last thing to restore linked list: as we have moved mem2,</span></div>
<div class="line"><a name="l00551"></a><span class="lineno"> 551</span> <span class="comment"> * let 'mem2->next->prev' point to mem2 again. but only if mem2->next is not</span></div>
<div class="line"><a name="l00552"></a><span class="lineno"> 552</span> <span class="comment"> * the end of the heap */</span></div>
<div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  <span class="keywordflow">if</span> (mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> != <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>])-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr2;</div>
<div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  }</div>
<div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a>(<a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>, (size - newsize));</div>
<div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  <span class="comment">/* no need to plug holes, we've already done that */</span></div>
<div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (newsize + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a> <= size) {</div>
<div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  <span class="comment">/* Next struct is used but there's room for another struct mem with</span></div>
<div class="line"><a name="l00560"></a><span class="lineno"> 560</span> <span class="comment"> * at least MIN_SIZE_ALIGNED of data.</span></div>
<div class="line"><a name="l00561"></a><span class="lineno"> 561</span> <span class="comment"> * Old size ('size') must be big enough to contain at least 'newsize' plus a struct mem</span></div>
<div class="line"><a name="l00562"></a><span class="lineno"> 562</span> <span class="comment"> * ('SIZEOF_STRUCT_MEM') with some data ('MIN_SIZE_ALIGNED').</span></div>
<div class="line"><a name="l00563"></a><span class="lineno"> 563</span> <span class="comment"> * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty</span></div>
<div class="line"><a name="l00564"></a><span class="lineno"> 564</span> <span class="comment"> * region that couldn't hold data, but when mem->next gets freed,</span></div>
<div class="line"><a name="l00565"></a><span class="lineno"> 565</span> <span class="comment"> * the 2 regions would be combined, resulting in more free memory */</span></div>
<div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  ptr2 = ptr + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + newsize;</div>
<div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  mem2 = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr2];</div>
<div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keywordflow">if</span> (mem2 < lfree) {</div>
<div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  lfree = mem2;</div>
<div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  }</div>
<div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 0;</div>
<div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00573"></a><span class="lineno"> 573</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr;</div>
<div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = ptr2;</div>
<div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  <span class="keywordflow">if</span> (mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> != <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>])-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr2;</div>
<div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  }</div>
<div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  <a class="code" href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a>(<a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>, (size - newsize));</div>
<div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  <span class="comment">/* the original mem->next is used, so no need to plug holes! */</span></div>
<div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  }</div>
<div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  <span class="comment">/* else {</span></div>
<div class="line"><a name="l00582"></a><span class="lineno"> 582</span> <span class="comment"> next struct mem is used but size between mem and mem2 is not big enough</span></div>
<div class="line"><a name="l00583"></a><span class="lineno"> 583</span> <span class="comment"> to create another struct mem</span></div>
<div class="line"><a name="l00584"></a><span class="lineno"> 584</span> <span class="comment"> -> don't do anyhting.</span></div>
<div class="line"><a name="l00585"></a><span class="lineno"> 585</span> <span class="comment"> -> the remaining space stays unused since it is too small</span></div>
<div class="line"><a name="l00586"></a><span class="lineno"> 586</span> <span class="comment"> } */</span></div>
<div class="line"><a name="l00587"></a><span class="lineno"> 587</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00588"></a><span class="lineno"> 588</span>  mem_free_count = 1;</div>
<div class="line"><a name="l00589"></a><span class="lineno"> 589</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <a class="code" href="../../d3/d8f/mem_8c.html#aa8a24c0593943bb1e64c1243dddfae50">LWIP_MEM_FREE_UNPROTECT</a>();</div>
<div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  <span class="keywordflow">return</span> rmem;</div>
<div class="line"><a name="l00592"></a><span class="lineno"> 592</span> }</div>
<div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  </div>
<div class="line"><a name="l00602"></a><span class="lineno"> 602</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00603"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335"> 603</a></span> <a class="code" href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335">mem_malloc</a>(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00604"></a><span class="lineno"> 604</span> {</div>
<div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> ptr, ptr2;</div>
<div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *<a class="code" href="../../d0/d0f/structmem.html">mem</a>, *mem2;</div>
<div class="line"><a name="l00607"></a><span class="lineno"> 607</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  <a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> local_mem_free_count = 0;</div>
<div class="line"><a name="l00609"></a><span class="lineno"> 609</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a016a07ea84e1d75386765b90015b6698">LWIP_MEM_ALLOC_DECL_PROTECT</a>();</div>
<div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  </div>
<div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  <span class="keywordflow">if</span> (size == 0) {</div>
<div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  }</div>
<div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  </div>
<div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  <span class="comment">/* Expand the size of the allocated memory region so that we can</span></div>
<div class="line"><a name="l00617"></a><span class="lineno"> 617</span> <span class="comment"> adjust for alignment. */</span></div>
<div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  size = <a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(size);</div>
<div class="line"><a name="l00619"></a><span class="lineno"> 619</span>  </div>
<div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keywordflow">if</span> (size < <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="comment">/* every data block must be at least MIN_SIZE_ALIGNED long */</span></div>
<div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  size = <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a>;</div>
<div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  }</div>
<div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  </div>
<div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  <span class="keywordflow">if</span> (size > <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  }</div>
<div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  </div>
<div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  <span class="comment">/* protect the heap from concurrent access */</span></div>
<div class="line"><a name="l00630"></a><span class="lineno"> 630</span>  <a class="code" href="../../d8/d3b/group__sys__mutex.html#ga4d4eb9afe5965fa2661dd54ff55d616a">sys_mutex_lock</a>(&mem_mutex);</div>
<div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a3c644ac3ac94ed977bb165eeb6ff741a">LWIP_MEM_ALLOC_PROTECT</a>();</div>
<div class="line"><a name="l00632"></a><span class="lineno"> 632</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  <span class="comment">/* run as long as a mem_free disturbed mem_malloc or mem_trim */</span></div>
<div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keywordflow">do</span> {</div>
<div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  local_mem_free_count = 0;</div>
<div class="line"><a name="l00636"></a><span class="lineno"> 636</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00637"></a><span class="lineno"> 637</span>  </div>
<div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="comment">/* Scan through the heap searching for a free block that is big enough,</span></div>
<div class="line"><a name="l00639"></a><span class="lineno"> 639</span> <span class="comment"> * beginning with the lowest free block.</span></div>
<div class="line"><a name="l00640"></a><span class="lineno"> 640</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  <span class="keywordflow">for</span> (ptr = (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)lfree - ram); ptr < <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a> - size;</div>
<div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  ptr = ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr])-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>) {</div>
<div class="line"><a name="l00643"></a><span class="lineno"> 643</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a> = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr];</div>
<div class="line"><a name="l00644"></a><span class="lineno"> 644</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  mem_free_count = 0;</div>
<div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  <a class="code" href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a">LWIP_MEM_ALLOC_UNPROTECT</a>();</div>
<div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  <span class="comment">/* allow mem_free or mem_trim to run */</span></div>
<div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a3c644ac3ac94ed977bb165eeb6ff741a">LWIP_MEM_ALLOC_PROTECT</a>();</div>
<div class="line"><a name="l00649"></a><span class="lineno"> 649</span>  <span class="keywordflow">if</span> (mem_free_count != 0) {</div>
<div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="comment">/* If mem_free or mem_trim have run, we have to restart since they</span></div>
<div class="line"><a name="l00651"></a><span class="lineno"> 651</span> <span class="comment"> could have altered our current struct mem. */</span></div>
<div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  local_mem_free_count = 1;</div>
<div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  }</div>
<div class="line"><a name="l00655"></a><span class="lineno"> 655</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  </div>
<div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  <span class="keywordflow">if</span> ((!<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>) &&</div>
<div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  (<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> - (ptr + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>)) >= size) {</div>
<div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  <span class="comment">/* mem is not used and at least perfect fit is possible:</span></div>
<div class="line"><a name="l00660"></a><span class="lineno"> 660</span> <span class="comment"> * mem->next - (ptr + SIZEOF_STRUCT_MEM) gives us the 'user data size' of mem */</span></div>
<div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  </div>
<div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> - (ptr + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>) >= (size + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + <a class="code" href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a>)) {</div>
<div class="line"><a name="l00663"></a><span class="lineno"> 663</span>  <span class="comment">/* (in addition to the above, we test if another struct mem (SIZEOF_STRUCT_MEM) containing</span></div>
<div class="line"><a name="l00664"></a><span class="lineno"> 664</span> <span class="comment"> * at least MIN_SIZE_ALIGNED of data also fits in the 'user data space' of 'mem')</span></div>
<div class="line"><a name="l00665"></a><span class="lineno"> 665</span> <span class="comment"> * -> split large block, create empty remainder,</span></div>
<div class="line"><a name="l00666"></a><span class="lineno"> 666</span> <span class="comment"> * remainder must be large enough to contain MIN_SIZE_ALIGNED data: if</span></div>
<div class="line"><a name="l00667"></a><span class="lineno"> 667</span> <span class="comment"> * mem->next - (ptr + (2*SIZEOF_STRUCT_MEM)) == size,</span></div>
<div class="line"><a name="l00668"></a><span class="lineno"> 668</span> <span class="comment"> * struct mem would fit in but no data between mem2 and mem2->next</span></div>
<div class="line"><a name="l00669"></a><span class="lineno"> 669</span> <span class="comment"> * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty</span></div>
<div class="line"><a name="l00670"></a><span class="lineno"> 670</span> <span class="comment"> * region that couldn't hold data, but when mem->next gets freed,</span></div>
<div class="line"><a name="l00671"></a><span class="lineno"> 671</span> <span class="comment"> * the 2 regions would be combined, resulting in more free memory</span></div>
<div class="line"><a name="l00672"></a><span class="lineno"> 672</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  ptr2 = ptr + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + size;</div>
<div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="comment">/* create mem2 struct */</span></div>
<div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  mem2 = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[ptr2];</div>
<div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 0;</div>
<div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>;</div>
<div class="line"><a name="l00678"></a><span class="lineno"> 678</span>  mem2-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr;</div>
<div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="comment">/* and insert it between mem and mem->next */</span></div>
<div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> = ptr2;</div>
<div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 1;</div>
<div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  </div>
<div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  <span class="keywordflow">if</span> (mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> != <a class="code" href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a>) {</div>
<div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  ((<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[mem2-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>])-><a class="code" href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">prev</a> = ptr2;</div>
<div class="line"><a name="l00685"></a><span class="lineno"> 685</span>  }</div>
<div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aefec777cb83885b2f399afb661cf3837">MEM_STATS_INC_USED</a>(<a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>, (size + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>));</div>
<div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  <span class="comment">/* (a mem2 struct does no fit into the user data space of mem and mem->next will always</span></div>
<div class="line"><a name="l00689"></a><span class="lineno"> 689</span> <span class="comment"> * be used at this point: if not we have 2 unused structs in a row, plug_holes should have</span></div>
<div class="line"><a name="l00690"></a><span class="lineno"> 690</span> <span class="comment"> * take care of this).</span></div>
<div class="line"><a name="l00691"></a><span class="lineno"> 691</span> <span class="comment"> * -> near fit or exact fit: do not split, no mem2 creation</span></div>
<div class="line"><a name="l00692"></a><span class="lineno"> 692</span> <span class="comment"> * also can't move mem->next directly behind mem, since mem->next</span></div>
<div class="line"><a name="l00693"></a><span class="lineno"> 693</span> <span class="comment"> * will always be used at this point!</span></div>
<div class="line"><a name="l00694"></a><span class="lineno"> 694</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> = 1;</div>
<div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aefec777cb83885b2f399afb661cf3837">MEM_STATS_INC_USED</a>(<a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>, <a class="code" href="../../d0/d0f/structmem.html">mem</a>-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a> - (<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a>)((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> - ram));</div>
<div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  }</div>
<div class="line"><a name="l00698"></a><span class="lineno"> 698</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00699"></a><span class="lineno"> 699</span> mem_malloc_adjust_lfree:</div>
<div class="line"><a name="l00700"></a><span class="lineno"> 700</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  <span class="keywordflow">if</span> (<a class="code" href="../../d0/d0f/structmem.html">mem</a> == lfree) {</div>
<div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  <span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *cur = lfree;</div>
<div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  <span class="comment">/* Find next free block after mem and update lowest free pointer */</span></div>
<div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  <span class="keywordflow">while</span> (cur-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a> && cur != ram_end) {</div>
<div class="line"><a name="l00705"></a><span class="lineno"> 705</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  mem_free_count = 0;</div>
<div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  <a class="code" href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a">LWIP_MEM_ALLOC_UNPROTECT</a>();</div>
<div class="line"><a name="l00708"></a><span class="lineno"> 708</span>  <span class="comment">/* prevent high interrupt latency... */</span></div>
<div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  <a class="code" href="../../d3/d8f/mem_8c.html#a3c644ac3ac94ed977bb165eeb6ff741a">LWIP_MEM_ALLOC_PROTECT</a>();</div>
<div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  <span class="keywordflow">if</span> (mem_free_count != 0) {</div>
<div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  <span class="comment">/* If mem_free or mem_trim have run, we have to restart since they</span></div>
<div class="line"><a name="l00712"></a><span class="lineno"> 712</span> <span class="comment"> could have altered our current struct mem or lfree. */</span></div>
<div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  <span class="keywordflow">goto</span> mem_malloc_adjust_lfree;</div>
<div class="line"><a name="l00714"></a><span class="lineno"> 714</span>  }</div>
<div class="line"><a name="l00715"></a><span class="lineno"> 715</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  cur = (<span class="keyword">struct </span><a class="code" href="../../d0/d0f/structmem.html">mem</a> *)(<span class="keywordtype">void</span> *)&ram[cur-><a class="code" href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">next</a>];</div>
<div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  }</div>
<div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  lfree = cur;</div>
<div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_malloc: !lfree->used"</span>, ((lfree == ram_end) || (!lfree-><a class="code" href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">used</a>)));</div>
<div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  }</div>
<div class="line"><a name="l00721"></a><span class="lineno"> 721</span>  <a class="code" href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a">LWIP_MEM_ALLOC_UNPROTECT</a>();</div>
<div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <a class="code" href="../../d8/d3b/group__sys__mutex.html#ga5568f68898fe9d5735f9ce2f665624fb">sys_mutex_unlock</a>(&mem_mutex);</div>
<div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_malloc: allocated memory not above ram_end."</span>,</div>
<div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a>)<a class="code" href="../../d0/d0f/structmem.html">mem</a> + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a> + size <= (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a>)ram_end);</div>
<div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_malloc: allocated memory properly aligned."</span>,</div>
<div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  ((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a>)<a class="code" href="../../d0/d0f/structmem.html">mem</a> + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>) % <a class="code" href="../../d2/d78/lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a> == 0);</div>
<div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  <a class="code" href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a>(<span class="stringliteral">"mem_malloc: sanity check alignment"</span>,</div>
<div class="line"><a name="l00728"></a><span class="lineno"> 728</span>  (((<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a>)<a class="code" href="../../d0/d0f/structmem.html">mem</a>) & (<a class="code" href="../../d2/d78/lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a>-1)) == 0);</div>
<div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  </div>
<div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  <span class="keywordflow">return</span> (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> *)<a class="code" href="../../d0/d0f/structmem.html">mem</a> + <a class="code" href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a>;</div>
<div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  }</div>
<div class="line"><a name="l00732"></a><span class="lineno"> 732</span>  }</div>
<div class="line"><a name="l00733"></a><span class="lineno"> 733</span> <span class="preprocessor">#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT</span></div>
<div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  <span class="comment">/* if we got interrupted by a mem_free, try again */</span></div>
<div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  } <span class="keywordflow">while</span> (local_mem_free_count != 0);</div>
<div class="line"><a name="l00736"></a><span class="lineno"> 736</span> <span class="preprocessor">#endif </span><span class="comment">/* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  <a class="code" href="../../db/d16/debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a>(<a class="code" href="../../d2/d78/lwipopts_8h.html#a2d7bc380695eeedb1af50c3808613afe">MEM_DEBUG</a> | <a class="code" href="../../d6/d7a/group__debugging__levels.html#ga0269bdc51f1e8a5ecf9af72c6e1c996c">LWIP_DBG_LEVEL_SERIOUS</a>, (<span class="stringliteral">"mem_malloc: could not allocate %"</span><a class="code" href="../../de/d8c/group__compiler__abstraction.html#gac05a82d37afb251470f5e17ca15ab6e9">S16_F</a><span class="stringliteral">" bytes\n"</span>, (<a class="code" href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a>)size));</div>
<div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  <a class="code" href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a>(err);</div>
<div class="line"><a name="l00739"></a><span class="lineno"> 739</span>  <a class="code" href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a">LWIP_MEM_ALLOC_UNPROTECT</a>();</div>
<div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  <a class="code" href="../../d8/d3b/group__sys__mutex.html#ga5568f68898fe9d5735f9ce2f665624fb">sys_mutex_unlock</a>(&mem_mutex);</div>
<div class="line"><a name="l00741"></a><span class="lineno"> 741</span>  <span class="keywordflow">return</span> <a class="code" href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>;</div>
<div class="line"><a name="l00742"></a><span class="lineno"> 742</span> }</div>
<div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  </div>
<div class="line"><a name="l00744"></a><span class="lineno"> 744</span> <span class="preprocessor">#endif </span><span class="comment">/* MEM_USE_POOLS */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  </div>
<div class="line"><a name="l00746"></a><span class="lineno"> 746</span> <span class="preprocessor">#if MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS)</span></div>
<div class="line"><a name="l00747"></a><span class="lineno"> 747</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00748"></a><span class="lineno"> 748</span> <a class="code" href="../../d3/d8f/mem_8c.html#ab0bdc525971701883f2065e7fb257a24">mem_calloc</a>(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> count, <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00749"></a><span class="lineno"> 749</span> {</div>
<div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keywordflow">return</span> mem_clib_calloc(count, size);</div>
<div class="line"><a name="l00751"></a><span class="lineno"> 751</span> }</div>
<div class="line"><a name="l00752"></a><span class="lineno"> 752</span>  </div>
<div class="line"><a name="l00753"></a><span class="lineno"> 753</span> <span class="preprocessor">#else </span><span class="comment">/* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */</span><span class="preprocessor"></span></div>
<div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  </div>
<div class="line"><a name="l00764"></a><span class="lineno"> 764</span> <span class="keywordtype">void</span> *</div>
<div class="line"><a name="l00765"></a><span class="lineno"><a class="line" href="../../d3/d8f/mem_8c.html#ab0bdc525971701883f2065e7fb257a24"> 765</a></span> <a class="code" href="../../d3/d8f/mem_8c.html#ab0bdc525971701883f2065e7fb257a24">mem_calloc</a>(<a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> count, <a class="code" href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a> size)</div>
<div class="line"><a name="l00766"></a><span class="lineno"> 766</span> {</div>
<div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keywordtype">void</span> *p;</div>
<div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  </div>
<div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="comment">/* allocate 'count' objects of size 'size' */</span></div>
<div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  p = <a class="code" href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335">mem_malloc</a>(count * size);</div>
<div class="line"><a name="l00771"></a><span class="lineno"> 771</span>  <span class="keywordflow">if</span> (p) {</div>
<div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="comment">/* zero the memory */</span></div>
<div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  <a class="code" href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a>(p, 0, (<span class="keywordtype">size_t</span>)count * (<span class="keywordtype">size_t</span>)size);</div>
<div class="line"><a name="l00774"></a><span class="lineno"> 774</span>  }</div>
<div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  <span class="keywordflow">return</span> p;</div>
<div class="line"><a name="l00776"></a><span class="lineno"> 776</span> }</div>
<div class="line"><a name="l00777"></a><span class="lineno"> 777</span> <span class="preprocessor">#endif </span><span class="comment">/* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */</span><span class="preprocessor"></span></div>
</div><!-- fragment --></div><!-- contents -->
</div><!-- doc-content -->
<div class="ttc" id="asys_8h_html"><div class="ttname"><a href="../../d9/d87/sys_8h.html">sys.h</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gac05a82d37afb251470f5e17ca15ab6e9"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gac05a82d37afb251470f5e17ca15ab6e9">S16_F</a></div><div class="ttdeci">#define S16_F</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00151">arch.h:151</a></div></div>
<div class="ttc" id="aopt_8h_html"><div class="ttname"><a href="../../dc/dba/opt_8h.html">opt.h</a></div></div>
<div class="ttc" id="amem_8c_html_a3c644ac3ac94ed977bb165eeb6ff741a"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a3c644ac3ac94ed977bb165eeb6ff741a">LWIP_MEM_ALLOC_PROTECT</a></div><div class="ttdeci">#define LWIP_MEM_ALLOC_PROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00326">mem.c:326</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gacf46f4df0ebab84edebcb69967fdf86b"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a></div><div class="ttdeci">int16_t s16_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00125">arch.h:125</a></div></div>
<div class="ttc" id="adef_8h_html"><div class="ttname"><a href="../../d4/da4/def_8h.html">def.h</a></div></div>
<div class="ttc" id="adebug_8h_html_a94ad086267808462beae2b38f91996ed"><div class="ttname"><a href="../../db/d16/debug_8h.html#a94ad086267808462beae2b38f91996ed">LWIP_ASSERT</a></div><div class="ttdeci">#define LWIP_ASSERT(message, assertion)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00116">debug.h:116</a></div></div>
<div class="ttc" id="amem_8c_html_a016a07ea84e1d75386765b90015b6698"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a016a07ea84e1d75386765b90015b6698">LWIP_MEM_ALLOC_DECL_PROTECT</a></div><div class="ttdeci">#define LWIP_MEM_ALLOC_DECL_PROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00325">mem.c:325</a></div></div>
<div class="ttc" id="astructmem_html"><div class="ttname"><a href="../../d0/d0f/structmem.html">mem</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00264">mem.c:264</a></div></div>
<div class="ttc" id="asys_8h_html_a2f48e97047945642ddeb27e65bf4ffe2"><div class="ttname"><a href="../../d9/d87/sys_8h.html#a2f48e97047945642ddeb27e65bf4ffe2">SYS_ARCH_UNPROTECT</a></div><div class="ttdeci">#define SYS_ARCH_UNPROTECT(lev)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d87/sys_8h_source.html#l00363">sys.h:363</a></div></div>
<div class="ttc" id="agroup__debugging__levels_html_gaab41143277cd38047b6660d90e9cec3b"><div class="ttname"><a href="../../d6/d7a/group__debugging__levels.html#gaab41143277cd38047b6660d90e9cec3b">LWIP_DBG_LEVEL_SEVERE</a></div><div class="ttdeci">#define LWIP_DBG_LEVEL_SEVERE</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00059">debug.h:59</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga77570ac4fcab86864fa1916e55676da2"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a></div><div class="ttdeci">uint16_t u16_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00124">arch.h:124</a></div></div>
<div class="ttc" id="astring_8h_html"><div class="ttname"><a href="../../da/d66/string_8h.html">string.h</a></div></div>
<div class="ttc" id="amem_8c_html_a44a136e3b70c36abb6f8dc060c778113"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a44a136e3b70c36abb6f8dc060c778113">mem_init</a></div><div class="ttdeci">void mem_init(void)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00382">mem.c:382</a></div></div>
<div class="ttc" id="amemp_8h_html_a85a164b1f7764951cc685ea525114e57a3387042084427642949f3223c7ddd321"><div class="ttname"><a href="../../df/dff/memp_8h.html#a85a164b1f7764951cc685ea525114e57a3387042084427642949f3223c7ddd321">MEMP_MAX</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/dff/memp_8h_source.html#l00055">memp.h:55</a></div></div>
<div class="ttc" id="amem_8c_html_a97c704b85f71b6e61b0098b4a0a743cd"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a97c704b85f71b6e61b0098b4a0a743cd">MIN_SIZE_ALIGNED</a></div><div class="ttdeci">#define MIN_SIZE_ALIGNED</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00280">mem.c:280</a></div></div>
<div class="ttc" id="astructmem_html_aa76b6a39425617435978dce903f0d456"><div class="ttname"><a href="../../d0/d0f/structmem.html#aa76b6a39425617435978dce903f0d456">mem::used</a></div><div class="ttdeci">u8_t used</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00270">mem.c:270</a></div></div>
<div class="ttc" id="amemp_8h_html_a2b00593d086313c267b54a976bf67aa5"><div class="ttname"><a href="../../df/dff/memp_8h.html#a2b00593d086313c267b54a976bf67aa5">memp_malloc</a></div><div class="ttdeci">void * memp_malloc(memp_t type)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d70/memp_8c_source.html#l00385">memp.c:385</a></div></div>
<div class="ttc" id="agroup__debugging__levels_html_ga988147559b78642ac881815b66023646"><div class="ttname"><a href="../../d6/d7a/group__debugging__levels.html#ga988147559b78642ac881815b66023646">LWIP_DBG_TRACE</a></div><div class="ttdeci">#define LWIP_DBG_TRACE</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00083">debug.h:83</a></div></div>
<div class="ttc" id="amem_8c_html_aa8a24c0593943bb1e64c1243dddfae50"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#aa8a24c0593943bb1e64c1243dddfae50">LWIP_MEM_FREE_UNPROTECT</a></div><div class="ttdeci">#define LWIP_MEM_FREE_UNPROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00323">mem.c:323</a></div></div>
<div class="ttc" id="agroup__sys__mutex_html_ga4d4eb9afe5965fa2661dd54ff55d616a"><div class="ttname"><a href="../../d8/d3b/group__sys__mutex.html#ga4d4eb9afe5965fa2661dd54ff55d616a">sys_mutex_lock</a></div><div class="ttdeci">void sys_mutex_lock(sys_mutex_t *mutex)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00152">sys_arch.c:152</a></div></div>
<div class="ttc" id="astats_8h_html_a8ff88328a91828b01070a90a1894815f"><div class="ttname"><a href="../../d9/d9b/stats_8h.html#a8ff88328a91828b01070a90a1894815f">MEM_STATS_DEC_USED</a></div><div class="ttdeci">#define MEM_STATS_DEC_USED(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9b/stats_8h_source.html#l00398">stats.h:398</a></div></div>
<div class="ttc" id="astructmem_html_a9d7722ed10adf965fa98563d502f98ac"><div class="ttname"><a href="../../d0/d0f/structmem.html#a9d7722ed10adf965fa98563d502f98ac">mem::prev</a></div><div class="ttdeci">mem_size_t prev</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00268">mem.c:268</a></div></div>
<div class="ttc" id="amemp_8h_html_aecd94926b7c2a0e23ae195f4ae97581f"><div class="ttname"><a href="../../df/dff/memp_8h.html#aecd94926b7c2a0e23ae195f4ae97581f">memp_free</a></div><div class="ttdeci">void memp_free(memp_t type, void *mem)</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d70/memp_8c_source.html#l00469">memp.c:469</a></div></div>
<div class="ttc" id="amem_8c_html_ab0bdc525971701883f2065e7fb257a24"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#ab0bdc525971701883f2065e7fb257a24">mem_calloc</a></div><div class="ttdeci">void * mem_calloc(mem_size_t count, mem_size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00765">mem.c:765</a></div></div>
<div class="ttc" id="amem_8c_html_aa33f9b7cf221a9cde8fa715a51d3bfc7"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#aa33f9b7cf221a9cde8fa715a51d3bfc7">LWIP_DECLARE_MEMORY_ALIGNED</a></div><div class="ttdeci">LWIP_DECLARE_MEMORY_ALIGNED(ram_heap, LWIP_MEM_ALIGN_SIZE(MEM_SIZE)+(2U *LWIP_MEM_ALIGN_SIZE(sizeof(struct mem))))</div></div>
<div class="ttc" id="astats_8h_html"><div class="ttname"><a href="../../d9/d9b/stats_8h.html">stats.h</a></div></div>
<div class="ttc" id="agroup__debugging__levels_html_ga0269bdc51f1e8a5ecf9af72c6e1c996c"><div class="ttname"><a href="../../d6/d7a/group__debugging__levels.html#ga0269bdc51f1e8a5ecf9af72c6e1c996c">LWIP_DBG_LEVEL_SERIOUS</a></div><div class="ttdeci">#define LWIP_DBG_LEVEL_SERIOUS</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00057">debug.h:57</a></div></div>
<div class="ttc" id="astructmem_html_a5abf13a11156e92c417f7ff66ef0b5cf"><div class="ttname"><a href="../../d0/d0f/structmem.html#a5abf13a11156e92c417f7ff66ef0b5cf">mem::next</a></div><div class="ttdeci">mem_size_t next</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00266">mem.c:266</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga4caecabca98b43919dd11be1c0d4cd8e"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a></div><div class="ttdeci">uint8_t u8_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00122">arch.h:122</a></div></div>
<div class="ttc" id="amem_8c_html_aef413072690259b59ce27e49df19e307"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#aef413072690259b59ce27e49df19e307">LWIP_MEM_FREE_PROTECT</a></div><div class="ttdeci">#define LWIP_MEM_FREE_PROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00322">mem.c:322</a></div></div>
<div class="ttc" id="aerr_8h_html"><div class="ttname"><a href="../../d6/d40/err_8h.html">err.h</a></div></div>
<div class="ttc" id="astructmemp__desc_html_a1688d2bdd5a7b77700e1fa627f025ba3"><div class="ttname"><a href="../../d5/ddd/structmemp__desc.html#a1688d2bdd5a7b77700e1fa627f025ba3">memp_desc::size</a></div><div class="ttdeci">u16_t size</div><div class="ttdef"><b>Definition:</b> <a href="../../d5/d70/memp__priv_8h_source.html#l00141">memp_priv.h:141</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gaef204be511fd32f681b55abc08e9ae18"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a></div><div class="ttdeci">#define LWIP_MEM_ALIGN_SIZE(size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00221">arch.h:221</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_ga70624a5deb8b9199406372a7f3603ecf"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#ga70624a5deb8b9199406372a7f3603ecf">LWIP_UNUSED_ARG</a></div><div class="ttdeci">#define LWIP_UNUSED_ARG(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00315">arch.h:315</a></div></div>
<div class="ttc" id="amem_8c_html_a2f0214c1c0d4acf856fb3ec76818a5a9"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a2f0214c1c0d4acf856fb3ec76818a5a9">mem_trim</a></div><div class="ttdeci">void * mem_trim(void *rmem, mem_size_t newsize)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00478">mem.c:478</a></div></div>
<div class="ttc" id="asys_8h_html_a945395fa326214fc9736487242710a90"><div class="ttname"><a href="../../d9/d87/sys_8h.html#a945395fa326214fc9736487242710a90">SYS_ARCH_DECL_PROTECT</a></div><div class="ttdeci">#define SYS_ARCH_DECL_PROTECT(lev)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d87/sys_8h_source.html#l00361">sys.h:361</a></div></div>
<div class="ttc" id="asys_8h_html_a3d0e48feafd378e9c26c64567ecd8bab"><div class="ttname"><a href="../../d9/d87/sys_8h.html#a3d0e48feafd378e9c26c64567ecd8bab">SYS_ARCH_PROTECT</a></div><div class="ttdeci">#define SYS_ARCH_PROTECT(lev)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d87/sys_8h_source.html#l00362">sys.h:362</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a97343214666ee6dcb18c0bd77b441ea7"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#a97343214666ee6dcb18c0bd77b441ea7">MEM_ALIGNMENT</a></div><div class="ttdeci">#define MEM_ALIGNMENT</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00054">lwipopts.h:54</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gaa8e8724eb1c220cbbb90de9e175ce1dc"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gaa8e8724eb1c220cbbb90de9e175ce1dc">LWIP_MEM_ALIGN</a></div><div class="ttdeci">#define LWIP_MEM_ALIGN(addr)</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00236">arch.h:236</a></div></div>
<div class="ttc" id="agroup__sys__mutex_html_ga38e7dae1fd88b338eb1cd97f110f3897"><div class="ttname"><a href="../../d8/d3b/group__sys__mutex.html#ga38e7dae1fd88b338eb1cd97f110f3897">sys_mutex_new</a></div><div class="ttdeci">err_t sys_mutex_new(sys_mutex_t *mutex)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00143">sys_arch.c:143</a></div></div>
<div class="ttc" id="agroup__infrastructure__errors_html_ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb"><div class="ttname"><a href="../../d2/de7/group__infrastructure__errors.html#ggae2e66c7d13afc90ffecd6151680fbadcaa26c163b80b1f6786ca81dadc14b00fb">ERR_OK</a></div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d40/err_8h_source.html#l00063">err.h:63</a></div></div>
<div class="ttc" id="agroup__sys__mutex_html_ga5568f68898fe9d5735f9ce2f665624fb"><div class="ttname"><a href="../../d8/d3b/group__sys__mutex.html#ga5568f68898fe9d5735f9ce2f665624fb">sys_mutex_unlock</a></div><div class="ttdeci">void sys_mutex_unlock(sys_mutex_t *mutex)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d56/sys__arch_8c_source.html#l00156">sys_arch.c:156</a></div></div>
<div class="ttc" id="agroup__compiler__abstraction_html_gaf019cbb71af10dcfda7758b21e655307"><div class="ttname"><a href="../../de/d8c/group__compiler__abstraction.html#gaf019cbb71af10dcfda7758b21e655307">mem_ptr_t</a></div><div class="ttdeci">uintptr_t mem_ptr_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d2d/arch_8h_source.html#l00128">arch.h:128</a></div></div>
<div class="ttc" id="amem_8c_html_af0643ce3aa197952517914e1d644150a"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#af0643ce3aa197952517914e1d644150a">LWIP_MEM_ALLOC_UNPROTECT</a></div><div class="ttdeci">#define LWIP_MEM_ALLOC_UNPROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00327">mem.c:327</a></div></div>
<div class="ttc" id="amemp_8h_html_ad78a1f656a766f2c6341aa466762b883"><div class="ttname"><a href="../../df/dff/memp_8h.html#ad78a1f656a766f2c6341aa466762b883">memp_pools</a></div><div class="ttdeci">const struct memp_desc *const memp_pools[MEMP_MAX]</div><div class="ttdef"><b>Definition:</b> <a href="../../d1/d70/memp_8c_source.html#l00081">memp.c:81</a></div></div>
<div class="ttc" id="astring_8h_html_ace4b911463887af5e748326323e99a23"><div class="ttname"><a href="../../da/d66/string_8h.html#ace4b911463887af5e748326323e99a23">memset</a></div><div class="ttdeci">void * memset(void *dst, int c, size_t length)</div></div>
<div class="ttc" id="amem_8c_html_a932aa40d85b14cb7331625e012d12335"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a932aa40d85b14cb7331625e012d12335">mem_malloc</a></div><div class="ttdeci">void * mem_malloc(mem_size_t size)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00603">mem.c:603</a></div></div>
<div class="ttc" id="amem_8c_html_a581c4edded02d92caf7a938c801a618e"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a581c4edded02d92caf7a938c801a618e">LWIP_MEM_FREE_DECL_PROTECT</a></div><div class="ttdeci">#define LWIP_MEM_FREE_DECL_PROTECT()</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00321">mem.c:321</a></div></div>
<div class="ttc" id="astats_8h_html_a6ca3d10f92a30f5435aace26fa7d6020"><div class="ttname"><a href="../../d9/d9b/stats_8h.html#a6ca3d10f92a30f5435aace26fa7d6020">MEM_STATS_AVAIL</a></div><div class="ttdeci">#define MEM_STATS_AVAIL(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9b/stats_8h_source.html#l00395">stats.h:395</a></div></div>
<div class="ttc" id="amem_8h_html_a49bff6e5dd4cb95fe6dc0670962bbf54"><div class="ttname"><a href="../../d9/d9a/mem_8h.html#a49bff6e5dd4cb95fe6dc0670962bbf54">mem_size_t</a></div><div class="ttdeci">u16_t mem_size_t</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9a/mem_8h_source.html#l00067">mem.h:67</a></div></div>
<div class="ttc" id="amem_8c_html_a4fa8ffb4c7a8b4c0404ad4278cc801d0"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a4fa8ffb4c7a8b4c0404ad4278cc801d0">LWIP_RAM_HEAP_POINTER</a></div><div class="ttdeci">#define LWIP_RAM_HEAP_POINTER</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00291">mem.c:291</a></div></div>
<div class="ttc" id="amem_8h_html"><div class="ttname"><a href="../../d9/d9a/mem_8h.html">mem.h</a></div></div>
<div class="ttc" id="amemp_8h_html_a85a164b1f7764951cc685ea525114e57"><div class="ttname"><a href="../../df/dff/memp_8h.html#a85a164b1f7764951cc685ea525114e57">memp_t</a></div><div class="ttdeci">memp_t</div><div class="ttdef"><b>Definition:</b> <a href="../../df/dff/memp_8h_source.html#l00052">memp.h:52</a></div></div>
<div class="ttc" id="amem_8c_html_a65169147c44e9db60d997819af9b455c"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a65169147c44e9db60d997819af9b455c">mem_free</a></div><div class="ttdeci">void mem_free(void *rmem)</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00419">mem.c:419</a></div></div>
<div class="ttc" id="alwipopts_8h_html_a2d7bc380695eeedb1af50c3808613afe"><div class="ttname"><a href="../../d2/d78/lwipopts_8h.html#a2d7bc380695eeedb1af50c3808613afe">MEM_DEBUG</a></div><div class="ttdeci">#define MEM_DEBUG</div><div class="ttdef"><b>Definition:</b> <a href="../../d2/d78/lwipopts_8h_source.html#l00455">lwipopts.h:455</a></div></div>
<div class="ttc" id="astats_8h_html_aa6bb9e8fcc38e7febafd7ef682700786"><div class="ttname"><a href="../../d9/d9b/stats_8h.html#aa6bb9e8fcc38e7febafd7ef682700786">MEM_STATS_INC</a></div><div class="ttdeci">#define MEM_STATS_INC(x)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9b/stats_8h_source.html#l00396">stats.h:396</a></div></div>
<div class="ttc" id="astructsys__mutex_html"><div class="ttname"><a href="../../d2/d0f/structsys__mutex.html">sys_mutex</a></div><div class="ttdef"><b>Definition:</b> <a href="../../df/dc7/sys__arch_8h_source.html#l00016">sys_arch.h:16</a></div></div>
<div class="ttc" id="adebug_8h_html_a63a04edf7ff63c951bd8706711956cdb"><div class="ttname"><a href="../../db/d16/debug_8h.html#a63a04edf7ff63c951bd8706711956cdb">LWIP_DEBUGF</a></div><div class="ttdeci">#define LWIP_DEBUGF(debug, message)</div><div class="ttdef"><b>Definition:</b> <a href="../../db/d16/debug_8h_source.html#l00164">debug.h:164</a></div></div>
<div class="ttc" id="amem_8c_html_ade9cedd48e9a482120e29c010352ee5c"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#ade9cedd48e9a482120e29c010352ee5c">SIZEOF_STRUCT_MEM</a></div><div class="ttdeci">#define SIZEOF_STRUCT_MEM</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00281">mem.c:281</a></div></div>
<div class="ttc" id="amem_8c_html_a78ed2097d5d3e2ca4599b2ca3d91493a"><div class="ttname"><a href="../../d3/d8f/mem_8c.html#a78ed2097d5d3e2ca4599b2ca3d91493a">MEM_SIZE_ALIGNED</a></div><div class="ttdeci">#define MEM_SIZE_ALIGNED</div><div class="ttdef"><b>Definition:</b> <a href="../../d3/d8f/mem_8c_source.html#l00282">mem.c:282</a></div></div>
<div class="ttc" id="astats_8h_html_aefec777cb83885b2f399afb661cf3837"><div class="ttname"><a href="../../d9/d9b/stats_8h.html#aefec777cb83885b2f399afb661cf3837">MEM_STATS_INC_USED</a></div><div class="ttdeci">#define MEM_STATS_INC_USED(x, y)</div><div class="ttdef"><b>Definition:</b> <a href="../../d9/d9b/stats_8h_source.html#l00397">stats.h:397</a></div></div>
<div class="ttc" id="afat__string_8h_html_a070d2ce7b6bb7e5c05602aa8c308d0c4"><div class="ttname"><a href="../../d6/d8a/fat__string_8h.html#a070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a></div><div class="ttdeci">#define NULL</div><div class="ttdef"><b>Definition:</b> <a href="../../d6/d8a/fat__string_8h_source.html#l00017">fat_string.h:17</a></div></div>
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