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<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_366cae809cefebd9796e1be555536f38.html">vfs</a></div>
<h1>file.c</h1><a href="file_8c.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/*****************************************************************************************</span>
<a name="l00002"></a>00002 <span class="comment"> Copyright (c) 2002 The UbixOS Project</span>
<a name="l00003"></a>00003 <span class="comment"> All rights reserved.</span>
<a name="l00004"></a>00004 <span class="comment"></span>
<a name="l00005"></a>00005 <span class="comment">Redistribution and use in source and binary forms, with or without modification, are</span>
<a name="l00006"></a>00006 <span class="comment">permitted provided that the following conditions are met:</span>
<a name="l00007"></a>00007 <span class="comment"></span>
<a name="l00008"></a>00008 <span class="comment">Redistributions of source code must retain the above copyright notice, this list of</span>
<a name="l00009"></a>00009 <span class="comment">conditions, the following disclaimer and the list of authors. Redistributions in binary</span>
<a name="l00010"></a>00010 <span class="comment">form must reproduce the above copyright notice, this list of conditions, the following</span>
<a name="l00011"></a>00011 <span class="comment">disclaimer and the list of authors in the documentation and/or other materials provided</span>
<a name="l00012"></a>00012 <span class="comment">with the distribution. Neither the name of the UbixOS Project nor the names of its</span>
<a name="l00013"></a>00013 <span class="comment">contributors may be used to endorse or promote products derived from this software</span>
<a name="l00014"></a>00014 <span class="comment">without specific prior written permission.</span>
<a name="l00015"></a>00015 <span class="comment"></span>
<a name="l00016"></a>00016 <span class="comment">THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY</span>
<a name="l00017"></a>00017 <span class="comment">EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF</span>
<a name="l00018"></a>00018 <span class="comment">MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL</span>
<a name="l00019"></a>00019 <span class="comment">THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00020"></a>00020 <span class="comment">SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT</span>
<a name="l00021"></a>00021 <span class="comment">OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)</span>
<a name="l00022"></a>00022 <span class="comment">HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR</span>
<a name="l00023"></a>00023 <span class="comment">TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS</span>
<a name="l00024"></a>00024 <span class="comment">SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00025"></a>00025 <span class="comment"></span>
<a name="l00026"></a>00026 <span class="comment"> $Id: file_8c-source.html 88 2016-01-12 00:11:29Z reddawg $</span>
<a name="l00027"></a>00027 <span class="comment"></span>
<a name="l00028"></a>00028 <span class="comment">*****************************************************************************************/</span>
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="preprocessor">#include <<a class="code" href="vfs_8h.html">vfs/vfs.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="file_8h.html">vfs/file.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="sched_8h.html">ubixos/sched.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="vitals_8h.html">ubixos/vitals.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="kpanic_8h.html">ubixos/kpanic.h</a>></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span>
<a name="l00036"></a>00036 <span class="preprocessor">#include <<a class="code" href="kmalloc_8h.html">lib/kmalloc.h</a>></span>
<a name="l00037"></a>00037 <span class="preprocessor">#include <<a class="code" href="lib_2string_8h.html">lib/string.h</a>></span>
<a name="l00038"></a>00038 <span class="preprocessor">#include <<a class="code" href="paging_8h.html">vmm/paging.h</a>></span>
<a name="l00039"></a>00039 <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span>
<a name="l00040"></a>00040 <span class="preprocessor">#include <<a class="code" href="assert_8h.html">assert.h</a>></span>
<a name="l00041"></a>00041
<a name="l00042"></a><a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">00042</a> <span class="keyword">static</span> <a class="code" href="spinlock_8h.html#a240e9404b4ede1e0d714610080d1176">spinLock_t</a> <a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a> = <a class="code" href="spinlock_8h.html#0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;
<a name="l00043"></a>00043
<a name="l00044"></a>00044
<a name="l00045"></a><a class="code" href="file_8c.html#51ba4d2a5ce81ca407a9446dde21b319">00045</a> <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *<a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a> = 0x0;
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="comment">/* USER */</span>
<a name="l00048"></a>00048
<a name="l00049"></a><a class="code" href="file_8c.html#1a17e9753f6c9d2b34c35a2b2e7d240e">00049</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#fcdd895987386f8804e7ac7af37b6e7d">sysFwrite</a>(<span class="keywordtype">char</span> *ptr,<span class="keywordtype">int</span> size,<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd) {
<a name="l00050"></a>00050 <span class="keywordflow">if</span> (userFd == 0x0) {
<a name="l00051"></a>00051 <a class="code" href="tty_8h.html#d96f57a7c113d3cfa76ee5fed6de33c0">tty_print</a>(ptr,<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#4563a310626d4f4ea885f4532356abb3">term</a>);
<a name="l00052"></a>00052 }
<a name="l00053"></a>00053 <span class="keywordflow">else</span> {
<a name="l00054"></a>00054 <a class="code" href="file_8h.html#ca6c1e5b57dc9f5d8551b41ea98bfbb7">fwrite</a>(ptr,size,1,userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>);
<a name="l00055"></a>00055 }
<a name="l00056"></a>00056 <span class="keywordflow">return</span>;
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a><a class="code" href="file_8c.html#04b3a6449e24cc27188e1f4b9a9d8225">00059</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#6f44f7787a1f24847ae4d5dc701159df">sysFgetc</a>(<span class="keywordtype">int</span> *ptr,<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd) {
<a name="l00060"></a>00060 <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *tmpFd = 0x0;
<a name="l00061"></a>00061 tmpFd = userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>;
<a name="l00062"></a>00062 <span class="keywordflow">if</span> (userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> == 0x0) {
<a name="l00063"></a>00063 <span class="keywordflow">while</span> (1) {
<a name="l00064"></a>00064 <span class="keywordflow">if</span> (<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#4563a310626d4f4ea885f4532356abb3">term</a> == <a class="code" href="tty_8h.html#afbb5679104334c34d7691b2de7d7a86">tty_foreground</a>) {
<a name="l00065"></a>00065 <span class="keywordflow">if</span> ((*ptr = <a class="code" href="atkbd_8c.html#9e32494b8c0797b73c41a50c698f0c04">getch</a>()) != 0x0)
<a name="l00066"></a>00066 <span class="keywordflow">return</span>;
<a name="l00067"></a>00067 <a class="code" href="sched_8h.html#08933fe6d593a1c78b9080359f15a0b7">sched_yield</a>();
<a name="l00068"></a>00068 }
<a name="l00069"></a>00069 <span class="keywordflow">else</span> {
<a name="l00070"></a>00070 <a class="code" href="sched_8h.html#08933fe6d593a1c78b9080359f15a0b7">sched_yield</a>();
<a name="l00071"></a>00071 }
<a name="l00072"></a>00072 <span class="comment">/*</span>
<a name="l00073"></a>00073 <span class="comment"> else {</span>
<a name="l00074"></a>00074 <span class="comment"> kprintf("Waking Task: %i\n",tty_foreground->owner);</span>
<a name="l00075"></a>00075 <span class="comment"> sched_setStatus(tty_foreground->owner,READY);</span>
<a name="l00076"></a>00076 <span class="comment"> kprintf("Sleeping Task: %i\n",_current->id);</span>
<a name="l00077"></a>00077 <span class="comment"> sched_setStatus(_current->id,WAIT);</span>
<a name="l00078"></a>00078 <span class="comment"> sched_yield();</span>
<a name="l00079"></a>00079 <span class="comment"> }</span>
<a name="l00080"></a>00080 <span class="comment">*/</span>
<a name="l00081"></a>00081 }
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083 <span class="keywordflow">else</span> {
<a name="l00084"></a>00084 ptr[0] = (int) <a class="code" href="file_8h.html#dfedd6c658c329d13d5a90a7462f5979">fgetc</a>(tmpFd);
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087
<a name="l00088"></a><a class="code" href="file_8c.html#6db05e27ce2d54b4d2b5202c2d4282df">00088</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#6db05e27ce2d54b4d2b5202c2d4282df">sysRmDir</a>() {
<a name="l00089"></a>00089 <span class="keywordflow">return</span>;
<a name="l00090"></a>00090 }
<a name="l00091"></a>00091
<a name="l00092"></a><a class="code" href="file_8c.html#6ff1131020b7a50805dc848fcd9c03b2">00092</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#38bf31c893b410d0fac9399ef85ad497">sysFseek</a>(<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd,<span class="keywordtype">long</span> offset,<span class="keywordtype">int</span> whence) {
<a name="l00093"></a>00093 <span class="comment">// TODO : coredump?</span>
<a name="l00094"></a>00094 <span class="keywordflow">if</span> (userFd == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00095"></a>00095 <span class="keywordflow">return</span>;
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00097"></a>00097 <span class="keywordflow">return</span>;
<a name="l00098"></a>00098
<a name="l00099"></a>00099 userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a> = offset+whence;
<a name="l00100"></a>00100 }
<a name="l00101"></a>00101
<a name="l00102"></a><a class="code" href="file_8c.html#911a71c3e0e08149a11b2b05a50b3b97">00102</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#e728e0554b245825d8fbb97d1f542844">sysChDir</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path) {
<a name="l00103"></a>00103 <span class="keywordflow">if</span> (<a class="code" href="lib_2string_8h.html#dcec9a82a6a276e8edb0fd4fc26fe8f2">strstr</a>(path,<span class="stringliteral">":"</span>) == 0x0) {
<a name="l00104"></a>00104 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#e9411eaa7df66cd0148237248848bbdf">cwd</a>,<span class="stringliteral">"%s%s"</span>,<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#e9411eaa7df66cd0148237248848bbdf">cwd</a>,path);
<a name="l00105"></a>00105 }
<a name="l00106"></a>00106 <span class="keywordflow">else</span> {
<a name="l00107"></a>00107 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#e9411eaa7df66cd0148237248848bbdf">cwd</a>,path);
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a><a class="code" href="file_8c.html#331ab84f654750a2e7b3856f47be376f">00111</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#aec6e18d80f7508900cd4e828edc0151">sysUnlink</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path,<span class="keywordtype">int</span> *retVal) {
<a name="l00112"></a>00112 *retVal = <a class="code" href="file_8h.html#28af9471bbdf262321af663e02899a47">unlink</a>(path);
<a name="l00113"></a>00113 }
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">/************************************************************************</span>
<a name="l00116"></a>00116 <span class="comment"></span>
<a name="l00117"></a>00117 <span class="comment">Function: void sysFopen();</span>
<a name="l00118"></a>00118 <span class="comment">Description: Opens A File Descriptor For A User Task</span>
<a name="l00119"></a>00119 <span class="comment">Notes:</span>
<a name="l00120"></a>00120 <span class="comment"></span>
<a name="l00121"></a>00121 <span class="comment">************************************************************************/</span>
<a name="l00122"></a><a class="code" href="file_8c.html#11af8c48fc1b1a08d97e8082d553c143">00122</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#f0ad6deac3d7f77820114d678741acb2">sysFopen</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="structfile.html">file</a>,<span class="keywordtype">char</span> *flags,<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd) {
<a name="l00123"></a>00123 <span class="keywordflow">if</span> (userFd == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00124"></a>00124 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Error: userFd == NULL, File: %s, Line: %i\n"</span>,__FILE__,__LINE__);
<a name="l00125"></a>00125 userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> = <a class="code" href="file_8h.html#d6a41ac88a7d46d574e8a675fdde136c">fopen</a>(file,flags);
<a name="l00126"></a>00126 <span class="keywordflow">if</span> (userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> != 0x0) {
<a name="l00127"></a>00127 userFd-><a class="code" href="structuserFileDescriptorStruct.html#49b5731913f50c40d0c12b8c8e89b020">fdSize</a> = userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>-><a class="code" href="structfileDescriptorStruct.html#97eb3dcefe53610658dc341ca449e290">size</a>;
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129 <span class="comment">/* Return */</span>
<a name="l00130"></a>00130 <span class="keywordflow">return</span>;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132
<a name="l00133"></a>00133 <span class="comment">/************************************************************************</span>
<a name="l00134"></a>00134 <span class="comment"></span>
<a name="l00135"></a>00135 <span class="comment">Function: void sysFread();</span>
<a name="l00136"></a>00136 <span class="comment">Description: Reads SIZE Bytes From The userFd Into DATA</span>
<a name="l00137"></a>00137 <span class="comment">Notes:</span>
<a name="l00138"></a>00138 <span class="comment"></span>
<a name="l00139"></a>00139 <span class="comment">************************************************************************/</span>
<a name="l00140"></a><a class="code" href="file_8c.html#58d31e6659ae90bb9a1a78e238110b08">00140</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#386959ece5e0ce3b251767f17a3829ca">sysFread</a>(<span class="keywordtype">void</span> *data,<span class="keywordtype">long</span> size,<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd) {
<a name="l00141"></a>00141 <span class="comment">/* TODO : coredump? */</span>
<a name="l00142"></a>00142 <span class="keywordflow">if</span> (userFd == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00143"></a>00143 <span class="keywordflow">return</span>;
<a name="l00144"></a>00144 <span class="keywordflow">if</span> (userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00145"></a>00145 <span class="keywordflow">return</span>;
<a name="l00146"></a>00146 <a class="code" href="file_8h.html#3b06878a03209e88c008c77234b89359">fread</a>(data,size,1,userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>);
<a name="l00147"></a>00147 <span class="keywordflow">return</span>;
<a name="l00148"></a>00148 }
<a name="l00149"></a>00149
<a name="l00150"></a>00150 <span class="comment">/************************************************************************</span>
<a name="l00151"></a>00151 <span class="comment"></span>
<a name="l00152"></a>00152 <span class="comment">Function: void sysFclse();</span>
<a name="l00153"></a>00153 <span class="comment">Description: Closes A File Descriptor For A User Task</span>
<a name="l00154"></a>00154 <span class="comment">Notes:</span>
<a name="l00155"></a>00155 <span class="comment"></span>
<a name="l00156"></a>00156 <span class="comment">************************************************************************/</span>
<a name="l00157"></a><a class="code" href="file_8c.html#79ea7e7d939ab058bf2b53fdbfee42c6">00157</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#44dd82b342d548f461bf69eaea24467c">sysFclose</a>(<a class="code" href="structuserFileDescriptorStruct.html">userFileDescriptor</a> *userFd,<span class="keywordtype">int</span> *<a class="code" href="fdc_8c.html#e2746d1bf47d4f690105d083b966fa82">status</a>) {
<a name="l00158"></a>00158 <span class="keywordflow">if</span> (userFd == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a> )
<a name="l00159"></a>00159 {
<a name="l00160"></a>00160 *status = -1;
<a name="l00161"></a>00161 <span class="keywordflow">return</span>;
<a name="l00162"></a>00162 }
<a name="l00163"></a>00163 <span class="keywordflow">if</span> (userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a> == <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00164"></a>00164 {
<a name="l00165"></a>00165 *status = -1;
<a name="l00166"></a>00166 <span class="keywordflow">return</span>;
<a name="l00167"></a>00167 }
<a name="l00168"></a>00168 *status = <a class="code" href="file_8h.html#872c22366b4c63f4bdb10cd3b7980b11">fclose</a>(userFd-><a class="code" href="structuserFileDescriptorStruct.html#4dbfb1872dcf459d26d56e4c83916e84">fd</a>);
<a name="l00169"></a>00169 <span class="comment">/* Return */</span>
<a name="l00170"></a>00170 <span class="keywordflow">return</span>;
<a name="l00171"></a>00171 }
<a name="l00172"></a>00172
<a name="l00173"></a>00173
<a name="l00174"></a>00174
<a name="l00175"></a>00175 <span class="comment">/* KERNEL */</span>
<a name="l00176"></a>00176
<a name="l00177"></a>00177
<a name="l00178"></a><a class="code" href="file_8c.html#3b06878a03209e88c008c77234b89359">00178</a> <a class="code" href="types_8h.html#7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> <a class="code" href="file_8h.html#3b06878a03209e88c008c77234b89359">fread</a>(<span class="keywordtype">void</span> *ptr,<a class="code" href="types_8h.html#7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> size,<a class="code" href="types_8h.html#7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> nmemb,<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00179"></a>00179 <a class="code" href="types_8h.html#7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> i = 0x0;
<a name="l00180"></a>00180
<a name="l00181"></a>00181 <span class="keywordflow">if</span> (fd == 0x0)
<a name="l00182"></a>00182 <span class="keywordflow">return</span>(0x0);
<a name="l00183"></a>00183
<a name="l00184"></a>00184 <span class="keywordflow">if</span> (nmemb == 0x0)
<a name="l00185"></a>00185 nmemb = 1; <span class="comment">//Temp Fix</span>
<a name="l00186"></a>00186
<a name="l00187"></a>00187 <a class="code" href="assert_8h.html#d6d5aaa966ca7424f7cb9bd01f2c838b">assert</a>(fd);
<a name="l00188"></a>00188 <a class="code" href="assert_8h.html#d6d5aaa966ca7424f7cb9bd01f2c838b">assert</a>(fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>);
<a name="l00189"></a>00189 <a class="code" href="assert_8h.html#d6d5aaa966ca7424f7cb9bd01f2c838b">assert</a>(fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>);
<a name="l00190"></a>00190
<a name="l00191"></a>00191 i = fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#c5639f8b5425e84b0e25b183f18dbb7a">vfsRead</a>(fd,ptr,fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>,size * nmemb);
<a name="l00192"></a>00192
<a name="l00193"></a>00193 fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a> += size * nmemb;
<a name="l00194"></a>00194
<a name="l00195"></a>00195 <span class="comment">//kprintf("fread: %i:%i",i,size *nmemb);</span>
<a name="l00196"></a>00196
<a name="l00197"></a>00197 <span class="keywordflow">return</span>(i);
<a name="l00198"></a>00198 }
<a name="l00199"></a>00199
<a name="l00200"></a><a class="code" href="file_8c.html#ca6c1e5b57dc9f5d8551b41ea98bfbb7">00200</a> <a class="code" href="types_8h.html#7619b847aeded8a6d14cbfa212b2cdfb">size_t</a> <a class="code" href="file_8h.html#ca6c1e5b57dc9f5d8551b41ea98bfbb7">fwrite</a>(<span class="keywordtype">void</span> *ptr,<span class="keywordtype">int</span> size,<span class="keywordtype">int</span> nmemb,<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00201"></a>00201 <span class="keywordflow">if</span> (fd != 0x0) {
<a name="l00202"></a>00202 fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#0a4a469c38583399be85b1b9d63875c3">vfsWrite</a>(fd,ptr,fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>,size * nmemb);
<a name="l00203"></a>00203 fd->offset += size * nmemb;
<a name="l00204"></a>00204 }
<a name="l00205"></a>00205 <span class="keywordflow">return</span>(0x0);
<a name="l00206"></a>00206 }
<a name="l00207"></a>00207
<a name="l00208"></a><a class="code" href="file_8c.html#9e0ce64b32581a1d0337031d9ca07dfb">00208</a> <span class="keywordtype">int</span> <a class="code" href="file_8h.html#80528d8335cd52755f5d6a92e4f08391">fseek</a>(<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *tmpFd,<span class="keywordtype">long</span> offset,<span class="keywordtype">int</span> whence) {
<a name="l00209"></a>00209 tmpFd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a> = offset+whence;
<a name="l00210"></a>00210 <span class="keywordflow">return</span>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>);
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212
<a name="l00213"></a>00213 <span class="comment">/************************************************************************</span>
<a name="l00214"></a>00214 <span class="comment"></span>
<a name="l00215"></a>00215 <span class="comment">Function: int feof(fileDescriptor *fd)</span>
<a name="l00216"></a>00216 <span class="comment">Description: Check A File Descriptor For EOF And Return Result</span>
<a name="l00217"></a>00217 <span class="comment">Notes:</span>
<a name="l00218"></a>00218 <span class="comment"></span>
<a name="l00219"></a>00219 <span class="comment">************************************************************************/</span>
<a name="l00220"></a><a class="code" href="file_8c.html#6745ded7e707449e4f248d86dc76da4f">00220</a> <span class="keywordtype">int</span> <a class="code" href="file_8h.html#6745ded7e707449e4f248d86dc76da4f">feof</a>(<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00221"></a>00221 <span class="keywordflow">if</span> (fd-><a class="code" href="structfileDescriptorStruct.html#dd78e2b569c4813dc1b171f4203f3e6b">status</a> == <a class="code" href="vfs_8h.html#4907ecb6121af1b80c5c5b436ebe3cb5">fdEof</a>) {
<a name="l00222"></a>00222 <span class="keywordflow">return</span>(-1);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224 <span class="keywordflow">return</span>(0);
<a name="l00225"></a>00225 }
<a name="l00226"></a>00226
<a name="l00227"></a>00227 <span class="comment">/************************************************************************</span>
<a name="l00228"></a>00228 <span class="comment"></span>
<a name="l00229"></a>00229 <span class="comment">Function: int fputc(int ch,fileDescriptor *fd)</span>
<a name="l00230"></a>00230 <span class="comment">Description: This Will Write Character To FD</span>
<a name="l00231"></a>00231 <span class="comment">Notes:</span>
<a name="l00232"></a>00232 <span class="comment"></span>
<a name="l00233"></a>00233 <span class="comment">************************************************************************/</span>
<a name="l00234"></a><a class="code" href="file_8c.html#c49e133f264f7aa16d63ba1f404be8ac">00234</a> <span class="keywordtype">int</span> <a class="code" href="file_8c.html#c49e133f264f7aa16d63ba1f404be8ac">fputc</a>(<span class="keywordtype">int</span> ch,<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00235"></a>00235 <span class="keywordflow">if</span> (fd != 0x0) {
<a name="l00236"></a>00236 ch = fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#0a4a469c38583399be85b1b9d63875c3">vfsWrite</a>(fd,(<span class="keywordtype">char</span> *)ch,fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>,1);
<a name="l00237"></a>00237 fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>++;
<a name="l00238"></a>00238 <span class="keywordflow">return</span>(ch);
<a name="l00239"></a>00239 }
<a name="l00240"></a>00240 <span class="comment">/* Return NULL If FD Is Not Found */</span>
<a name="l00241"></a>00241 <span class="keywordflow">return</span>(0x0);
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00244"></a>00244 <span class="comment">/************************************************************************</span>
<a name="l00245"></a>00245 <span class="comment"></span>
<a name="l00246"></a>00246 <span class="comment">Function: int fgetc(fileDescriptor *fd)</span>
<a name="l00247"></a>00247 <span class="comment">Description: This Will Return The Next Character In A FD Stream</span>
<a name="l00248"></a>00248 <span class="comment">Notes:</span>
<a name="l00249"></a>00249 <span class="comment"></span>
<a name="l00250"></a>00250 <span class="comment">************************************************************************/</span>
<a name="l00251"></a><a class="code" href="file_8c.html#dfedd6c658c329d13d5a90a7462f5979">00251</a> <span class="keywordtype">int</span> <a class="code" href="file_8h.html#dfedd6c658c329d13d5a90a7462f5979">fgetc</a>(<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00252"></a>00252 <span class="keywordtype">int</span> ch = 0x0;
<a name="l00253"></a>00253 <span class="comment">/* If Found Return Next Char */</span>
<a name="l00254"></a>00254 <span class="keywordflow">if</span> (fd != 0x0) {
<a name="l00255"></a>00255 fd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#c5639f8b5425e84b0e25b183f18dbb7a">vfsRead</a>(fd,(<span class="keywordtype">char</span> *)&ch,fd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a>,1);
<a name="l00256"></a>00256 fd->offset++;
<a name="l00257"></a>00257 <span class="keywordflow">return</span>(ch);
<a name="l00258"></a>00258 }
<a name="l00259"></a>00259
<a name="l00260"></a>00260 <span class="comment">/* Return NULL If FD Is Not Found */</span>
<a name="l00261"></a>00261 <span class="keywordflow">return</span>(0x0);
<a name="l00262"></a>00262 }
<a name="l00263"></a>00263
<a name="l00264"></a>00264 <span class="comment">/************************************************************************</span>
<a name="l00265"></a>00265 <span class="comment"></span>
<a name="l00266"></a>00266 <span class="comment">Function: fileDescriptor *fopen(const char *file,cont char *flags)</span>
<a name="l00267"></a>00267 <span class="comment">Description: This Will Open A File And Return A File Descriptor</span>
<a name="l00268"></a>00268 <span class="comment">Notes:</span>
<a name="l00269"></a>00269 <span class="comment"></span>
<a name="l00270"></a>00270 <span class="comment">08/05/02 - Just Started A Rewrite Of This Function Should Work Out Well</span>
<a name="l00271"></a>00271 <span class="comment"></span>
<a name="l00272"></a>00272 <span class="comment">************************************************************************/</span>
<a name="l00273"></a>00273
<a name="l00274"></a><a class="code" href="file_8c.html#3c11b2679cf37c72b05eaab50c282e72">00274</a> <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *<a class="code" href="file_8h.html#d6a41ac88a7d46d574e8a675fdde136c">fopen</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="structfile.html">file</a>,<span class="keyword">const</span> <span class="keywordtype">char</span> *flags) {
<a name="l00275"></a>00275 <span class="keywordtype">int</span> i = 0x0;
<a name="l00276"></a>00276 <span class="keywordtype">char</span> *path = 0x0;
<a name="l00277"></a>00277 <span class="keywordtype">char</span> *mountPoint = 0x0;
<a name="l00278"></a>00278 <span class="keywordtype">char</span> fileName[1024];
<a name="l00279"></a>00279 <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *tmpFd = 0x0;
<a name="l00280"></a>00280
<a name="l00281"></a>00281 <span class="comment">/* Allocate Memory For File Descriptor */</span>
<a name="l00282"></a>00282 <span class="keywordflow">if</span>((tmpFd = (<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a>))) == 0x0) {
<a name="l00283"></a>00283 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Error: tmpFd == NULL, File: %s, Line: %i\n"</span>,__FILE__,__LINE__);
<a name="l00284"></a>00284 <span class="keywordflow">return</span>(<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);
<a name="l00285"></a>00285 }
<a name="l00286"></a>00286
<a name="l00287"></a>00287 <a class="code" href="strcpy_8S.html#9132520cc79236b654666f4ddc1b516c">strcpy</a>(fileName,file);
<a name="l00288"></a>00288
<a name="l00289"></a>00289 <span class="keywordflow">if</span> (<a class="code" href="lib_2string_8h.html#dcec9a82a6a276e8edb0fd4fc26fe8f2">strstr</a>(fileName,<span class="stringliteral">":"</span>)) {
<a name="l00290"></a>00290 mountPoint = (<span class="keywordtype">char</span> *)<a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>((<span class="keywordtype">char</span> *)&fileName,<span class="stringliteral">":"</span>);
<a name="l00291"></a>00291 path = <a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>(<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>,<span class="stringliteral">"\n"</span>);
<a name="l00292"></a>00292 }
<a name="l00293"></a>00293 <span class="keywordflow">else</span> {
<a name="l00294"></a>00294 path = fileName;
<a name="l00295"></a>00295 }
<a name="l00296"></a>00296
<a name="l00297"></a>00297 <span class="keywordflow">if</span> (path[0] == <span class="charliteral">'/'</span>)
<a name="l00298"></a>00298 <a class="code" href="strcpy_8S.html#9132520cc79236b654666f4ddc1b516c">strcpy</a>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#4ca84ca208f0bcd97d654f99a55724f6">fileName</a>, path);
<a name="l00299"></a>00299 <span class="keywordflow">else</span>
<a name="l00300"></a>00300 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#4ca84ca208f0bcd97d654f99a55724f6">fileName</a>,<span class="stringliteral">"/%s"</span>,path);
<a name="l00301"></a>00301
<a name="l00302"></a>00302 <span class="comment">/* Find our mount point or set default to sys */</span>
<a name="l00303"></a>00303 <span class="keywordflow">if</span> (mountPoint == 0x0)
<a name="l00304"></a>00304 tmpFd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a> = <a class="code" href="mount_8h.html#a8cc926aa9badb781158b6738b1b0f2d">vfs_findMount</a>(<span class="stringliteral">"sys"</span>);
<a name="l00305"></a>00305 <span class="keywordflow">else</span>
<a name="l00306"></a>00306 tmpFd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a> = <a class="code" href="mount_8h.html#a8cc926aa9badb781158b6738b1b0f2d">vfs_findMount</a>(mountPoint);
<a name="l00307"></a>00307
<a name="l00308"></a>00308 <span class="keywordflow">if</span> (tmpFd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a> == 0x0) {
<a name="l00309"></a>00309 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Mount Point Bad\n"</span>);
<a name="l00310"></a>00310 <span class="keywordflow">return</span>(0x0);
<a name="l00311"></a>00311 }
<a name="l00312"></a>00312
<a name="l00313"></a>00313 <span class="comment">/* This Will Set Up The Descriptor Modes */</span>
<a name="l00314"></a>00314 tmpFd-><a class="code" href="structfileDescriptorStruct.html#8c43ddd6ff5fd5383bcdde5896846e98">mode</a> = 0;
<a name="l00315"></a>00315 <span class="keywordflow">for</span> (i = 0; <span class="charliteral">'\0'</span> != flags[i] ;i++ ) {
<a name="l00316"></a>00316 <span class="keywordflow">switch</span>(flags[i]) {
<a name="l00317"></a>00317 <span class="keywordflow">case</span> <span class="charliteral">'w'</span>:
<a name="l00318"></a>00318 <span class="keywordflow">case</span> <span class="charliteral">'W'</span>:
<a name="l00319"></a>00319 tmpFd-><a class="code" href="structfileDescriptorStruct.html#8c43ddd6ff5fd5383bcdde5896846e98">mode</a> |= <a class="code" href="vfs_8h.html#4898b5a1a1daebda9d11b4afde062e5c">fileWrite</a>;
<a name="l00320"></a>00320 <span class="keywordflow">break</span>;
<a name="l00321"></a>00321 <span class="keywordflow">case</span> <span class="charliteral">'r'</span>:
<a name="l00322"></a>00322 <span class="keywordflow">case</span> <span class="charliteral">'R'</span>:
<a name="l00323"></a>00323 tmpFd-><a class="code" href="structfileDescriptorStruct.html#8c43ddd6ff5fd5383bcdde5896846e98">mode</a> |= <a class="code" href="vfs_8h.html#e8e814536103f514b8460ec7a0fc4553">fileRead</a>;
<a name="l00324"></a>00324 <span class="keywordflow">break</span>;
<a name="l00325"></a>00325 <span class="keywordflow">case</span> <span class="charliteral">'b'</span>:
<a name="l00326"></a>00326 <span class="keywordflow">case</span> <span class="charliteral">'B'</span>:
<a name="l00327"></a>00327 tmpFd-><a class="code" href="structfileDescriptorStruct.html#8c43ddd6ff5fd5383bcdde5896846e98">mode</a> |= <a class="code" href="vfs_8h.html#3e8798b0a6e30da29349c1b6d827f52a">fileBinary</a>;
<a name="l00328"></a>00328 <span class="keywordflow">break</span>;
<a name="l00329"></a>00329 <span class="keywordflow">case</span> <span class="charliteral">'a'</span>:
<a name="l00330"></a>00330 <span class="keywordflow">case</span> <span class="charliteral">'A'</span>:
<a name="l00331"></a>00331 tmpFd-><a class="code" href="structfileDescriptorStruct.html#8c43ddd6ff5fd5383bcdde5896846e98">mode</a> |= <a class="code" href="vfs_8h.html#e4c27d5653358d16438504434867dfff">fileAppend</a>;
<a name="l00332"></a>00332 <span class="keywordflow">break</span>;
<a name="l00333"></a>00333 <span class="keywordflow">default</span>:
<a name="l00334"></a>00334 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Invalid mode '%c' for fopen\n"</span>, flags[i]);
<a name="l00335"></a>00335 <span class="keywordflow">break</span>;
<a name="l00336"></a>00336 }
<a name="l00337"></a>00337 }
<a name="l00338"></a>00338 <span class="comment">/* Search For The File */</span>
<a name="l00339"></a>00339 <span class="keywordflow">if</span> (tmpFd-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#0fdae1689e7c9d514c635f790b11635d">vfsOpenFile</a>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#4ca84ca208f0bcd97d654f99a55724f6">fileName</a>,tmpFd) == 0x1) {
<a name="l00340"></a>00340 <span class="comment">/* If The File Is Found Then Set Up The Descriptor */</span>
<a name="l00341"></a>00341
<a name="l00342"></a>00342
<a name="l00343"></a>00343 <span class="comment">/* in order to save resources we will allocate the buffer later when it is needed */</span>
<a name="l00344"></a>00344
<a name="l00345"></a>00345 tmpFd-><a class="code" href="structfileDescriptorStruct.html#cbc0897e87c2c167cdb8cb1beb77f598">buffer</a> = (<span class="keywordtype">char</span> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(4096);
<a name="l00346"></a>00346 <span class="keywordflow">if</span>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#cbc0897e87c2c167cdb8cb1beb77f598">buffer</a> == 0x0)
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpFd);
<a name="l00349"></a>00349 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Error: tmpFd->buffer == NULL, File: %s, Line: %i\n"</span>,__FILE__,__LINE__);
<a name="l00350"></a>00350 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00351"></a>00351 <span class="keywordflow">return</span> 0x1;
<a name="l00352"></a>00352 }
<a name="l00353"></a>00353 <span class="comment">/* Set Its Status To Open */</span>
<a name="l00354"></a>00354 tmpFd-><a class="code" href="structfileDescriptorStruct.html#dd78e2b569c4813dc1b171f4203f3e6b">status</a> = <a class="code" href="vfs_8h.html#249a3d8cdfed3302062ad215b95a4294">fdOpen</a>;
<a name="l00355"></a>00355
<a name="l00356"></a>00356 <span class="comment">/* Initial File Offset Is Zero */</span>
<a name="l00357"></a>00357 tmpFd-><a class="code" href="structfileDescriptorStruct.html#eedbb6c79fc5a34c4b8cf4ebbf6a0658">offset</a> = 0;
<a name="l00358"></a>00358 tmpFd-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a> = 0x0;
<a name="l00359"></a>00359
<a name="l00360"></a>00360 <span class="comment">/* we do not want to be in a spinlock longer than we need to, so</span>
<a name="l00361"></a>00361 <span class="comment"> it has been moved to here. */</span>
<a name="l00362"></a>00362 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00363"></a>00363
<a name="l00364"></a>00364 <span class="comment">/* Increment Number Of Open Files */</span>
<a name="l00365"></a>00365 <a class="code" href="vitals_8h.html#67aae71be472453526fc1a0bfbf80280">systemVitals</a>-><a class="code" href="structvitalsStruct.html#4398d65a35290bc00027b6c8a4e049c8">openFiles</a>++;
<a name="l00366"></a>00366
<a name="l00367"></a>00367 tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a> = <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a>;
<a name="l00368"></a>00368
<a name="l00369"></a>00369 <span class="keywordflow">if</span> (<a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a> != 0x0)
<a name="l00370"></a>00370 <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a>-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a> = tmpFd;
<a name="l00371"></a>00371
<a name="l00372"></a>00372 <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a> = tmpFd;
<a name="l00373"></a>00373
<a name="l00374"></a>00374 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00375"></a>00375
<a name="l00376"></a>00376 <span class="comment">/* Return The FD */</span>
<a name="l00377"></a>00377 <span class="keywordflow">return</span>(tmpFd);
<a name="l00378"></a>00378 }
<a name="l00379"></a>00379 <span class="keywordflow">else</span> {
<a name="l00380"></a>00380 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#cbc0897e87c2c167cdb8cb1beb77f598">buffer</a>);
<a name="l00381"></a>00381 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpFd);
<a name="l00382"></a>00382 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00383"></a>00383 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"File Not Found? %s\n"</span>,file);
<a name="l00384"></a>00384 <span class="keywordflow">return</span> (<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>);
<a name="l00385"></a>00385 }
<a name="l00386"></a>00386
<a name="l00387"></a>00387 <span class="comment">/* Return NULL */</span>
<a name="l00388"></a>00388 <span class="keywordflow">return</span>(0x0);
<a name="l00389"></a>00389 }
<a name="l00390"></a>00390
<a name="l00391"></a>00391 <span class="comment">/************************************************************************</span>
<a name="l00392"></a>00392 <span class="comment"></span>
<a name="l00393"></a>00393 <span class="comment">Function: int fclose(fileDescriptor *fd);</span>
<a name="l00394"></a>00394 <span class="comment">Description: This Will Close And Free A File Descriptor</span>
<a name="l00395"></a>00395 <span class="comment">Notes:</span>
<a name="l00396"></a>00396 <span class="comment"></span>
<a name="l00397"></a>00397 <span class="comment">************************************************************************/</span>
<a name="l00398"></a><a class="code" href="file_8c.html#789959682f4ac8df2d89ea6450efda8b">00398</a> <span class="keywordtype">int</span> <a class="code" href="file_8h.html#872c22366b4c63f4bdb10cd3b7980b11">fclose</a>(<a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *fd) {
<a name="l00399"></a>00399 <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *tmpFd = 0x0;
<a name="l00400"></a>00400 <a class="code" href="assert_8h.html#d6d5aaa966ca7424f7cb9bd01f2c838b">assert</a>(fd);
<a name="l00401"></a>00401
<a name="l00402"></a>00402 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00403"></a>00403
<a name="l00404"></a>00404 <span class="keywordflow">for</span> (tmpFd = <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a>;tmpFd != 0x0;tmpFd = tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a>) {
<a name="l00405"></a>00405 <span class="keywordflow">if</span> (tmpFd == fd) {
<a name="l00406"></a>00406 <span class="keywordflow">if</span> (tmpFd-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a>)
<a name="l00407"></a>00407 tmpFd-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a>-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a> = tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a>;
<a name="l00408"></a>00408 if (tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a>)
<a name="l00409"></a>00409 tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a>-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a> = tmpFd-><a class="code" href="structfileDescriptorStruct.html#3301f80684107656eeb91edfaed9e676">prev</a>;
<a name="l00410"></a>00410
<a name="l00411"></a>00411 if (tmpFd == <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a>)
<a name="l00412"></a>00412 <a class="code" href="file_8h.html#51ba4d2a5ce81ca407a9446dde21b319">fdTable</a> = tmpFd-><a class="code" href="structfileDescriptorStruct.html#fe4f514afb8946b16aab3c8e50f8069c">next</a>;
<a name="l00413"></a>00413
<a name="l00414"></a>00414 <a class="code" href="vitals_8h.html#67aae71be472453526fc1a0bfbf80280">systemVitals</a>-><a class="code" href="structvitalsStruct.html#4398d65a35290bc00027b6c8a4e049c8">openFiles</a>--;
<a name="l00415"></a>00415 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00416"></a>00416 <span class="keywordflow">if</span>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#cbc0897e87c2c167cdb8cb1beb77f598">buffer</a> != <a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>)
<a name="l00417"></a>00417 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpFd-><a class="code" href="structfileDescriptorStruct.html#cbc0897e87c2c167cdb8cb1beb77f598">buffer</a>);
<a name="l00418"></a>00418 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpFd);
<a name="l00419"></a>00419 <span class="keywordflow">return</span>(0x0);
<a name="l00420"></a>00420 }
<a name="l00421"></a>00421 }
<a name="l00422"></a>00422
<a name="l00423"></a>00423 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="file_8c.html#fa65d289bbbb969e9cffdb3620112989">fdTable_lock</a>);
<a name="l00424"></a>00424 <span class="keywordflow">return</span>(0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>);
<a name="l00425"></a>00425 }
<a name="l00426"></a>00426
<a name="l00427"></a>00427 <span class="comment">/* UBU */</span>
<a name="l00428"></a>00428
<a name="l00429"></a>00429 <span class="comment">/************************************************************************</span>
<a name="l00430"></a>00430 <span class="comment"></span>
<a name="l00431"></a>00431 <span class="comment">Function: void sysMkDir(const char *path)</span>
<a name="l00432"></a>00432 <span class="comment">Description: This Will Create A New Directory</span>
<a name="l00433"></a>00433 <span class="comment">Notes:</span>
<a name="l00434"></a>00434 <span class="comment"></span>
<a name="l00435"></a>00435 <span class="comment">************************************************************************/</span>
<a name="l00436"></a><a class="code" href="file_8c.html#81e426f86ee3d066c32986948fe3f6fd">00436</a> <span class="keywordtype">void</span> <a class="code" href="syscalls_8h.html#8e5c364725bc054dd66a5a50e6ac0b0c">sysMkDir</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *path) {
<a name="l00437"></a>00437 <a class="code" href="structfileDescriptorStruct.html">fileDescriptor</a> *tmpFD = 0x0;
<a name="l00438"></a>00438 <span class="keywordtype">char</span> tmpDir[1024];
<a name="l00439"></a>00439 <span class="keywordtype">char</span> rootPath[256];
<a name="l00440"></a>00440 <span class="keywordtype">char</span> *dir = 0x0;<span class="comment">//UBU*mountPoint = 0x0;</span>
<a name="l00441"></a>00441 <span class="keywordtype">char</span> *tmp = 0x0;
<a name="l00442"></a>00442 rootPath[0] = <span class="charliteral">'\0'</span>;
<a name="l00443"></a>00443 dir = (<span class="keywordtype">char</span> *)path;
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="keywordflow">if</span> (<a class="code" href="lib_2string_8h.html#dcec9a82a6a276e8edb0fd4fc26fe8f2">strstr</a>(path,<span class="stringliteral">":"</span>) == 0x0) {
<a name="l00446"></a>00446 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(tmpDir,<span class="stringliteral">"%s%s"</span>,<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#0933c70230d4ac8bc9953640c979f8d7">oInfo</a>.<a class="code" href="structosInfo.html#e9411eaa7df66cd0148237248848bbdf">cwd</a>,path);
<a name="l00447"></a>00447 dir = (<span class="keywordtype">char</span> *)&tmpDir;
<a name="l00448"></a>00448 }
<a name="l00449"></a>00449 <span class="keywordflow">while</span> (<a class="code" href="lib_2string_8h.html#dcec9a82a6a276e8edb0fd4fc26fe8f2">strstr</a>(dir,<span class="stringliteral">"/"</span>)) {
<a name="l00450"></a>00450 <span class="keywordflow">if</span> (rootPath[0] == 0x0)
<a name="l00451"></a>00451 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(rootPath,<span class="stringliteral">"%s/"</span>,<a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>(dir,<span class="stringliteral">"/"</span>));
<a name="l00452"></a>00452 <span class="keywordflow">else</span>
<a name="l00453"></a>00453 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(rootPath,<span class="stringliteral">"%s%s/"</span>,rootPath,<a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>(dir,<span class="stringliteral">"/"</span>));
<a name="l00454"></a>00454 tmp = <a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>(<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>,<span class="stringliteral">"\n"</span>);
<a name="l00455"></a>00455 dir = tmp;
<a name="l00456"></a>00456 }
<a name="l00457"></a>00457
<a name="l00458"></a>00458 <span class="comment">//kprintf("rootPath: [%s]\n",rootPath);</span>
<a name="l00459"></a>00459 tmpFD = <a class="code" href="file_8h.html#d6a41ac88a7d46d574e8a675fdde136c">fopen</a>(rootPath,<span class="stringliteral">"rb"</span>);
<a name="l00460"></a>00460
<a name="l00461"></a>00461 <span class="keywordflow">if</span> (tmpFD-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a> == 0x0) {
<a name="l00462"></a>00462 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"Invalid Mount Point\n"</span>);
<a name="l00463"></a>00463 }
<a name="l00464"></a>00464 tmpFD-><a class="code" href="structfileDescriptorStruct.html#f8abeb5da4a430885db51246db1356f9">mp</a>-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#20da59647c97bc603d6d447984f335d7">vfsMakeDir</a>(dir,tmpFD);
<a name="l00465"></a>00465
<a name="l00466"></a>00466 <a class="code" href="file_8h.html#872c22366b4c63f4bdb10cd3b7980b11">fclose</a>(tmpFD);
<a name="l00467"></a>00467
<a name="l00468"></a>00468 <span class="keywordflow">return</span>;
<a name="l00469"></a>00469 }
<a name="l00470"></a>00470
<a name="l00471"></a>00471
<a name="l00472"></a>00472 <span class="comment">/************************************************************************</span>
<a name="l00473"></a>00473 <span class="comment"></span>
<a name="l00474"></a>00474 <span class="comment">Function: int unlink(const char *node)</span>
<a name="l00475"></a>00475 <span class="comment">Description: This will unlink a file</span>
<a name="l00476"></a>00476 <span class="comment">Notes:</span>
<a name="l00477"></a>00477 <span class="comment"></span>
<a name="l00478"></a>00478 <span class="comment">************************************************************************/</span>
<a name="l00479"></a>00479
<a name="l00480"></a><a class="code" href="file_8c.html#da4d877b19c34ce3137e0c35dab6e947">00480</a> <span class="keywordtype">int</span> <a class="code" href="file_8h.html#28af9471bbdf262321af663e02899a47">unlink</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *node) {
<a name="l00481"></a>00481 <span class="keywordtype">char</span> *path = 0x0,*mountPoint = 0x0;
<a name="l00482"></a>00482 <span class="keyword">struct </span><a class="code" href="structvfs__mountPoint.html">vfs_mountPoint</a> *mp = 0x0;
<a name="l00483"></a>00483
<a name="l00484"></a>00484 path = (<span class="keywordtype">char</span> *)<a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>((<span class="keywordtype">char</span> *)node,<span class="stringliteral">"@"</span>);
<a name="l00485"></a>00485 <a class="code" href="structvfs__mountPoint.html#30136b0c8a7040142fefc3b3d8038eaf">mountPoint</a> = <a class="code" href="lib_2string_8h.html#9af7251f0c1b875e0e34b8e2b94dda39">strtok</a>(<a class="code" href="types_8h.html#070d2ce7b6bb7e5c05602aa8c308d0c4">NULL</a>,<span class="stringliteral">"\n"</span>);
<a name="l00486"></a>00486 <span class="keywordflow">if</span> (<a class="code" href="structvfs__mountPoint.html#30136b0c8a7040142fefc3b3d8038eaf">mountPoint</a> == 0x0) {
<a name="l00487"></a>00487 mp = <a class="code" href="mount_8h.html#a8cc926aa9badb781158b6738b1b0f2d">vfs_findMount</a>(<span class="stringliteral">"sys"</span>); <span class="comment">/* _current->oInfo.container; */</span>
<a name="l00488"></a>00488 }
<a name="l00489"></a>00489 <span class="keywordflow">else</span> {
<a name="l00490"></a>00490 mp = <a class="code" href="mount_8h.html#a8cc926aa9badb781158b6738b1b0f2d">vfs_findMount</a>(<a class="code" href="structvfs__mountPoint.html#30136b0c8a7040142fefc3b3d8038eaf">mountPoint</a>);
<a name="l00491"></a>00491 }
<a name="l00492"></a>00492 <span class="keywordflow">if</span> (mp == 0x0) {
<a name="l00493"></a>00493 <span class="comment">//kpanic("Mount Point Bad");</span>
<a name="l00494"></a>00494 <span class="keywordflow">return</span>(0x0);
<a name="l00495"></a>00495 }
<a name="l00496"></a>00496 mp-><a class="code" href="structvfs__mountPoint.html#654fe61c60a0044082a7651cb2e29b8e">fs</a>-><a class="code" href="structfileSystem.html#215822943f3048f49e56579c11ca55d7">vfsUnlink</a>(path,mp);
<a name="l00497"></a>00497 <span class="keywordflow">return</span>(0x0);
<a name="l00498"></a>00498 }
<a name="l00499"></a>00499
<a name="l00500"></a>00500
<a name="l00501"></a>00501 <span class="comment">/***</span>
<a name="l00502"></a>00502 <span class="comment"> END</span>
<a name="l00503"></a>00503 <span class="comment"> ***/</span>
<a name="l00504"></a>00504
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