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<a href="#define-members">Macros</a> |
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<div class="title">pbuf.c File Reference</div> </div>
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<div class="textblock"><code>#include "<a class="el" href="opt_8h_source.html">net/opt.h</a>"</code><br />
<code>#include "<a class="el" href="stats_8h_source.html">net/stats.h</a>"</code><br />
<code>#include "<a class="el" href="def_8h_source.html">net/def.h</a>"</code><br />
<code>#include "<a class="el" href="mem_8h_source.html">net/mem.h</a>"</code><br />
<code>#include "<a class="el" href="memp_8h_source.html">net/memp.h</a>"</code><br />
<code>#include "<a class="el" href="pbuf_8h_source.html">net/pbuf.h</a>"</code><br />
<code>#include "<a class="el" href="sys_8h_source.html">net/sys.h</a>"</code><br />
<code>#include <<a class="el" href="string_8h_source.html">string.h</a>></code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for pbuf.c:</div>
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<div class="center"><img src="pbuf_8c__incl.png" border="0" usemap="#C_1_2Dev_2git_2UbixOS_2sys_2net_2core_2pbuf_8c" alt=""/></div>
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<p><a href="pbuf_8c_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="define-members"></a>
Macros</h2></td></tr>
<tr class="memitem:a3dad81a8286ee8e9a7c70a74f9f4bb0f"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#a3dad81a8286ee8e9a7c70a74f9f4bb0f">PBUF_POOL_BUFSIZE_ALIGNED</a>   <a class="el" href="group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(<a class="el" href="group__lwip__opts__pbuf.html#gae61f4491d56e805e79b79eb5d35a00e5">PBUF_POOL_BUFSIZE</a>)</td></tr>
<tr class="separator:a3dad81a8286ee8e9a7c70a74f9f4bb0f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aed70c61e971683736c569a1a99b76569"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#aed70c61e971683736c569a1a99b76569">PBUF_POOL_IS_EMPTY</a>()</td></tr>
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<tr class="memitem:a8357a994e45ff94c9494aa55b6c3ecb3"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#a8357a994e45ff94c9494aa55b6c3ecb3">SIZEOF_STRUCT_PBUF</a>   <a class="el" href="group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(sizeof(struct <a class="el" href="structpbuf.html">pbuf</a>))</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gacfcb0a2af918658ba0afe36499c65f47"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structpbuf.html">pbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gacfcb0a2af918658ba0afe36499c65f47">pbuf_alloc</a> (<a class="el" href="group__pbuf.html#gaee1baa59bb2f85ba575b5a8619ac1ebf">pbuf_layer</a> layer, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> length, <a class="el" href="group__pbuf.html#gab7e0e32fcc292c0d7107721766ed92fb">pbuf_type</a> type)</td></tr>
<tr class="separator:gacfcb0a2af918658ba0afe36499c65f47"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga82429084fe29015509c9b4a072707cd4"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga82429084fe29015509c9b4a072707cd4">pbuf_cat</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *h, struct <a class="el" href="structpbuf.html">pbuf</a> *t)</td></tr>
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<tr class="memitem:ga831c9a72bda1d3bd4c7b96f5a0e3b891"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga831c9a72bda1d3bd4c7b96f5a0e3b891">pbuf_chain</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *h, struct <a class="el" href="structpbuf.html">pbuf</a> *t)</td></tr>
<tr class="separator:ga831c9a72bda1d3bd4c7b96f5a0e3b891"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a5df7ac5ae59012fe9aeddba375a72190"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#a5df7ac5ae59012fe9aeddba375a72190">pbuf_clen</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p)</td></tr>
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<tr class="memitem:ga54ac7b116c6f53c704cbf74f35a8b35c"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structpbuf.html">pbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga54ac7b116c6f53c704cbf74f35a8b35c">pbuf_coalesce</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__pbuf.html#gaee1baa59bb2f85ba575b5a8619ac1ebf">pbuf_layer</a> layer)</td></tr>
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<tr class="memitem:gaba88511dee3df4b631fde691f421320d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gaba88511dee3df4b631fde691f421320d">pbuf_copy</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p_to, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p_from)</td></tr>
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<tr class="memitem:gac2f1f58fd36042e82af46f5015720899"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gac2f1f58fd36042e82af46f5015720899">pbuf_copy_partial</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *<a class="el" href="structbuf.html">buf</a>, void *dataptr, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> len, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset)</td></tr>
<tr class="separator:gac2f1f58fd36042e82af46f5015720899"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abf3d29c4f43986b4cb5eb314d5b9729d"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structpbuf.html">pbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#abf3d29c4f43986b4cb5eb314d5b9729d">pbuf_dechain</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p)</td></tr>
<tr class="separator:abf3d29c4f43986b4cb5eb314d5b9729d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gab0dd696fb4b6bc65e548944584f1738b"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gab0dd696fb4b6bc65e548944584f1738b">pbuf_free</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p)</td></tr>
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<tr class="memitem:ga6d803d9945bffb7ad97743f2fa503da6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga6d803d9945bffb7ad97743f2fa503da6">pbuf_get_at</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset)</td></tr>
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<tr class="memitem:a0f81deff4a0e6e8e0ff161a7b9871449"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#a0f81deff4a0e6e8e0ff161a7b9871449">pbuf_header</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a> header_size_increment)</td></tr>
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<tr class="memitem:ad0e64d6fbc423593461063da97da9ce6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#ad0e64d6fbc423593461063da97da9ce6">pbuf_header_force</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a> header_size_increment)</td></tr>
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<tr class="memitem:ga2170ccbbb13238380dbb203ee1b85974"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga2170ccbbb13238380dbb203ee1b85974">pbuf_memcmp</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> void *s2, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> n)</td></tr>
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<tr class="memitem:ga18c164a6e4a24d89ea9eb7571a886448"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga18c164a6e4a24d89ea9eb7571a886448">pbuf_memfind</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> void *<a class="el" href="structmem.html">mem</a>, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> mem_len, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> start_offset)</td></tr>
<tr class="separator:ga18c164a6e4a24d89ea9eb7571a886448"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gaf76863707dc02993eae116574b1ea03f"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gaf76863707dc02993eae116574b1ea03f">pbuf_put_at</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset, <a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> data)</td></tr>
<tr class="separator:gaf76863707dc02993eae116574b1ea03f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga50abfe830a33a1a47a562febee66015d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga50abfe830a33a1a47a562febee66015d">pbuf_realloc</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> new_len)</td></tr>
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<tr class="memitem:ga77f6bbd69e45e542014d9c547c7da74e"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga77f6bbd69e45e542014d9c547c7da74e">pbuf_ref</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *p)</td></tr>
<tr class="separator:ga77f6bbd69e45e542014d9c547c7da74e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga6a961522d81f0327aaf4d4ee6d96c583"><td class="memItemLeft" align="right" valign="top">struct <a class="el" href="structpbuf.html">pbuf</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga6a961522d81f0327aaf4d4ee6d96c583">pbuf_skip</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *in, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> in_offset, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> *out_offset)</td></tr>
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<tr class="memitem:a9ba3f7b705309ceadb147692fd5a1c7d"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="pbuf_8c.html#a9ba3f7b705309ceadb147692fd5a1c7d">pbuf_strstr</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> char *substr)</td></tr>
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<tr class="memitem:gad1e31e370271335b197272af2724ca85"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gad1e31e370271335b197272af2724ca85">pbuf_take</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *<a class="el" href="structbuf.html">buf</a>, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> void *dataptr, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> len)</td></tr>
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<tr class="memitem:gae1cf2bf7454ff87ff377b0b2262f9b44"><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#gae1cf2bf7454ff87ff377b0b2262f9b44">pbuf_take_at</a> (struct <a class="el" href="structpbuf.html">pbuf</a> *<a class="el" href="structbuf.html">buf</a>, <a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> void *dataptr, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> len, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset)</td></tr>
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<tr class="memitem:ga839f342803b0cf89049744124c5a98ad"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="group__pbuf.html#ga839f342803b0cf89049744124c5a98ad">pbuf_try_get_at</a> (<a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> *p, <a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> offset)</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Packet buffer management </p>
<p class="definition">Definition in file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
</div><h2 class="groupheader">Macro Definition Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a3dad81a8286ee8e9a7c70a74f9f4bb0f">◆ </a></span>PBUF_POOL_BUFSIZE_ALIGNED</h2>
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<td class="memname">#define PBUF_POOL_BUFSIZE_ALIGNED   <a class="el" href="group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(<a class="el" href="group__lwip__opts__pbuf.html#gae61f4491d56e805e79b79eb5d35a00e5">PBUF_POOL_BUFSIZE</a>)</td>
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<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00132">132</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#aed70c61e971683736c569a1a99b76569">◆ </a></span>PBUF_POOL_IS_EMPTY</h2>
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<td class="memname">#define PBUF_POOL_IS_EMPTY</td>
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<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00135">135</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8357a994e45ff94c9494aa55b6c3ecb3">◆ </a></span>SIZEOF_STRUCT_PBUF</h2>
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<td class="memname">#define SIZEOF_STRUCT_PBUF   <a class="el" href="group__compiler__abstraction.html#gaef204be511fd32f681b55abc08e9ae18">LWIP_MEM_ALIGN_SIZE</a>(sizeof(struct <a class="el" href="structpbuf.html">pbuf</a>))</td>
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<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00129">129</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a5df7ac5ae59012fe9aeddba375a72190">◆ </a></span>pbuf_clen()</h2>
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<td class="memname"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> pbuf_clen </td>
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<td class="paramtype"><a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> * </td>
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<p>Count number of pbufs in a chain</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>first pbuf of chain </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>the number of pbufs in a chain </dd></dl>
<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00801">801</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
<p class="reference">References <a class="el" href="pbuf_8h_source.html#l00144">pbuf::next</a>, and <a class="el" href="fat__string_8h_source.html#l00017">NULL</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#abf3d29c4f43986b4cb5eb314d5b9729d">◆ </a></span>pbuf_dechain()</h2>
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<td class="memname">struct <a class="el" href="structpbuf.html">pbuf</a>* pbuf_dechain </td>
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<td class="paramtype">struct <a class="el" href="structpbuf.html">pbuf</a> * </td>
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<p>Dechains the first pbuf from its succeeding pbufs in the chain.</p>
<p>Makes p->tot_len field equal to p->len. </p><dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>pbuf to dechain </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>remainder of the pbuf chain, or NULL if it was de-allocated. </dd></dl>
<dl class="section note"><dt>Note</dt><dd>May not be called on a packet queue. </dd></dl>
<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00900">900</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
<p class="reference">References <a class="el" href="pbuf_8h_source.html#l00159">pbuf::len</a>, <a class="el" href="debug_8h_source.html#l00116">LWIP_ASSERT</a>, <a class="el" href="debug_8h_source.html#l00083">LWIP_DBG_TRACE</a>, <a class="el" href="debug_8h_source.html#l00164">LWIP_DEBUGF</a>, <a class="el" href="pbuf_8h_source.html#l00144">pbuf::next</a>, <a class="el" href="fat__string_8h_source.html#l00017">NULL</a>, <a class="el" href="lwipopts_8h_source.html#l00435">PBUF_DEBUG</a>, <a class="el" href="pbuf_8c_source.html#l00715">pbuf_free()</a>, and <a class="el" href="pbuf_8h_source.html#l00156">pbuf::tot_len</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a0f81deff4a0e6e8e0ff161a7b9871449">◆ </a></span>pbuf_header()</h2>
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<td class="memname"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> pbuf_header </td>
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<td class="paramtype">struct <a class="el" href="structpbuf.html">pbuf</a> * </td>
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<td class="paramtype"><a class="el" href="group__compiler__abstraction.html#gacf46f4df0ebab84edebcb69967fdf86b">s16_t</a> </td>
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<p>Adjusts the payload pointer to hide or reveal headers in the payload.</p>
<p>Adjusts the ->payload pointer so that space for a header (dis)appears in the pbuf payload.</p>
<p>The ->payload, ->tot_len and ->len fields are adjusted.</p>
<dl class="params"><dt>Parameters</dt><dd>
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<tr><td class="paramname">p</td><td>pbuf to change the header size. </td></tr>
<tr><td class="paramname">header_size_increment</td><td>Number of bytes to increment header size which increases the size of the pbuf. New space is on the front. (Using a negative value decreases the header size.) If hdr_size_inc is 0, this function does nothing and returns successful.</td></tr>
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<p>PBUF_ROM and PBUF_REF type buffers cannot have their sizes increased, so the call will fail. A check is made that the increase in header size does not move the payload pointer in front of the start of the buffer. </p><dl class="section return"><dt>Returns</dt><dd>non-zero on failure, zero on success. </dd></dl>
<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00665">665</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#ad0e64d6fbc423593461063da97da9ce6">◆ </a></span>pbuf_header_force()</h2>
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<td class="memname"><a class="el" href="group__compiler__abstraction.html#ga4caecabca98b43919dd11be1c0d4cd8e">u8_t</a> pbuf_header_force </td>
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<td class="paramtype">struct <a class="el" href="structpbuf.html">pbuf</a> * </td>
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<p>Same as pbuf_header but does not check if 'header_size > 0' is allowed. This is used internally only, to allow PBUF_REF for RX. </p>
<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l00675">675</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9ba3f7b705309ceadb147692fd5a1c7d">◆ </a></span>pbuf_strstr()</h2>
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<td class="memname"><a class="el" href="group__compiler__abstraction.html#ga77570ac4fcab86864fa1916e55676da2">u16_t</a> pbuf_strstr </td>
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<td class="paramtype"><a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> struct <a class="el" href="structpbuf.html">pbuf</a> * </td>
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<td class="paramtype"><a class="el" href="cdefs_8h.html#a2c212835823e3c54a8ab6d95c652660e">const</a> char * </td>
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<p>Find occurrence of substr with length substr_len in pbuf p, start at offset start_offset WARNING: in contrast to <a class="el" href="string_8h.html#adcec9a82a6a276e8edb0fd4fc26fe8f2">strstr()</a>, this one does not stop at the first \0 in the pbuf/source string!</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">p</td><td>pbuf to search, maximum length is 0xFFFE since 0xFFFF is used as return value 'not found' </td></tr>
<tr><td class="paramname">substr</td><td>string to search for in p, maximum length is 0xFFFE </td></tr>
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<dl class="section return"><dt>Returns</dt><dd>0xFFFF if substr was not found in p or the index where it was found </dd></dl>
<p class="definition">Definition at line <a class="el" href="pbuf_8c_source.html#l01432">1432</a> of file <a class="el" href="pbuf_8c_source.html">pbuf.c</a>.</p>
<p class="reference">References <a class="el" href="fat__string_8h_source.html#l00017">NULL</a>, <a class="el" href="pbuf_8c_source.html#l01405">pbuf_memfind()</a>, <a class="el" href="strlen_8c_source.html#l00055">strlen()</a>, and <a class="el" href="pbuf_8h_source.html#l00156">pbuf::tot_len</a>.</p>
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