<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
<title>UbixOS V2: src/sys/kernel/kern_descrip.c Source File</title>
<link href="doxygen.css" rel="stylesheet" type="text/css">
<link href="tabs.css" rel="stylesheet" type="text/css">
</head><body>
<!-- Generated by Doxygen 1.4.7 -->
<div class="tabs">
<ul>
<li><a href="main.html"><span>Main Page</span></a></li>
<li><a href="classes.html"><span>Data Structures</span></a></li>
<li id="current"><a href="files.html"><span>Files</span></a></li>
<li><a href="dirs.html"><span>Directories</span></a></li>
<li>
<form action="search.php" method="get">
<table cellspacing="0" cellpadding="0" border="0">
<tr>
<td><label> <u>S</u>earch for </label></td>
<td><input type="text" name="query" value="" size="20" accesskey="s"/></td>
</tr>
</table>
</form>
</li>
</ul></div>
<div class="tabs">
<ul>
<li><a href="files.html"><span>File List</span></a></li>
<li><a href="globals.html"><span>Globals</span></a></li>
</ul></div>
<div class="nav">
<a class="el" href="dir_897b6a2d7bab147dd1db58381aad3984.html">src</a> » <a class="el" href="dir_832905b1f7f5feaf61a306b40c0ac817.html">sys</a> » <a class="el" href="dir_7efffd2b1fae7bb6f2aa85845c863494.html">kernel</a></div>
<h1>kern_descrip.c</h1><a href="kern__descrip_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) 2002-2004 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: kern__descrip_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="kern__descrip_8h.html">sys/kern_descrip.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="types_8h.html">ubixos/types.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="sysproto_8h.html">sys/sysproto.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="thread_8h.html">sys/thread.h</a>></span>
<a name="l00034"></a>00034 <span class="preprocessor">#include <<a class="code" href="kprintf_8h.html">lib/kprintf.h</a>></span>
<a name="l00035"></a>00035 <span class="preprocessor">#include <<a class="code" href="endtask_8h.html">ubixos/endtask.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="assert_8h.html">assert.h</a>></span>
<a name="l00038"></a>00038
<a name="l00039"></a><a class="code" href="kern__descrip_8c.html#4c1102e9a5b5c2be0c5e16d9b974a1a3">00039</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#791e8d3090dc6573a9faa0a64ec696d3">fcntl</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td, <span class="keyword">struct</span> <a class="code" href="structfcntl__args.html">fcntl_args</a> *uap) {
<a name="l00040"></a>00040 <span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *fp = 0x0;
<a name="l00041"></a>00041
<a name="l00042"></a>00042 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00043"></a>00043 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00044"></a>00044 <span class="preprocessor"> #endif</span>
<a name="l00045"></a>00045 <span class="preprocessor"></span>
<a name="l00046"></a>00046 <span class="keywordflow">if</span> (td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[uap-><a class="code" href="structfcntl__args.html#c51e9ffed7cc14ea6146d2fe50ae1028">fd</a>] == 0x0) {
<a name="l00047"></a>00047 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"ERROR!!!\n"</span>);
<a name="l00048"></a>00048 <span class="keywordflow">return</span>(-1);
<a name="l00049"></a>00049 }
<a name="l00050"></a>00050
<a name="l00051"></a>00051 fp = (<span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *)td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[uap-><a class="code" href="structfcntl__args.html#c51e9ffed7cc14ea6146d2fe50ae1028">fd</a>];
<a name="l00052"></a>00052 switch (uap-><a class="code" href="structfcntl__args.html#37d96e0fe66231dce7f61d06c19e259e">cmd</a>) {
<a name="l00053"></a>00053 <span class="keywordflow">case</span> 3:
<a name="l00054"></a>00054 td-><a class="code" href="structthread.html#f3ec0788a84e5cb640a1646d1347998a">td_retval</a>[0] = fp-><a class="code" href="structfile.html#314e5cc77afefbebb7f5e7d197b089ab">f_flag</a>;
<a name="l00055"></a>00055 <span class="keywordflow">break</span>;
<a name="l00056"></a>00056 <span class="keywordflow">case</span> 4:
<a name="l00057"></a>00057 fp-><a class="code" href="structfile.html#314e5cc77afefbebb7f5e7d197b089ab">f_flag</a> &= ~<a class="code" href="kern__descrip_8h.html#e145197023ee3530510eaa80446eef77">FCNTLFLAGS</a>;
<a name="l00058"></a>00058 fp-><a class="code" href="structfile.html#314e5cc77afefbebb7f5e7d197b089ab">f_flag</a> |= <a class="code" href="kern__descrip_8h.html#3c28c97a69c6ce8f87cac54a7c91f9db">FFLAGS</a>(uap-><a class="code" href="structfcntl__args.html#359ca968530c6ac026b226cc564cca0c">arg</a> & ~<a class="code" href="kern__descrip_8h.html#4dc4d45e07d2abc899bcaf04b2846a87">O_ACCMODE</a>) & <a class="code" href="kern__descrip_8h.html#e145197023ee3530510eaa80446eef77">FCNTLFLAGS</a>;
<a name="l00059"></a>00059 <span class="keywordflow">break</span>;
<a name="l00060"></a>00060 <span class="keywordflow">default</span>:
<a name="l00061"></a>00061 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"ERROR DEFAULT"</span>);
<a name="l00062"></a>00062 }
<a name="l00063"></a>00063
<a name="l00064"></a>00064 <span class="keywordflow">return</span>(0x0);
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a><a class="code" href="kern__descrip_8c.html#9c93ac280b559128027746bda7c5d6d4">00067</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#434fb15226182b0ee879a5afe9a8c190">falloc</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td,<span class="keyword">struct</span> <a class="code" href="structfile.html">file</a> **resultfp, <span class="keywordtype">int</span> *resultfd) {
<a name="l00068"></a>00068 <span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *fp = 0x0;
<a name="l00069"></a>00069 <span class="keywordtype">int</span> i = 0;
<a name="l00070"></a>00070
<a name="l00071"></a>00071 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00072"></a>00072 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00073"></a>00073 <span class="preprocessor"> #endif</span>
<a name="l00074"></a>00074 <span class="preprocessor"></span>
<a name="l00075"></a>00075 fp = (<span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<span class="keyword">struct</span> <a class="code" href="structfile.html">file</a>));
<a name="l00076"></a>00076 <span class="comment">/* First 5 Descriptors Are Reserved */</span>
<a name="l00077"></a>00077 <span class="keywordflow">for</span> (i = 5;i<1024;i++) {
<a name="l00078"></a>00078 <span class="keywordflow">if</span> (td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[i] == 0x0) {
<a name="l00079"></a>00079 td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[i] = (<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a>)fp;
<a name="l00080"></a>00080 if (resultfd)
<a name="l00081"></a>00081 *resultfd = i;
<a name="l00082"></a>00082 <span class="keywordflow">if</span> (resultfp)
<a name="l00083"></a>00083 *resultfp = fp;
<a name="l00084"></a>00084 <span class="keywordflow">break</span>;
<a name="l00085"></a>00085 }
<a name="l00086"></a>00086 }
<a name="l00087"></a>00087 <span class="keywordflow">return</span>(0x0);
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00090"></a><a class="code" href="kern__descrip_8c.html#ec14600d2aa9db1288f00704ba3a55d7">00090</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#39808045c1781393e845fa51fd2db6e0">close</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td,<span class="keyword">struct</span> <a class="code" href="structclose__args.html">close_args</a> *uap) {
<a name="l00091"></a>00091 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00092"></a>00092 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00093"></a>00093 <span class="preprocessor"> #endif</span>
<a name="l00094"></a>00094 <span class="preprocessor"></span> <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>((<span class="keywordtype">void</span> *)td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[uap-><a class="code" href="structclose__args.html#795acdf38594b16ee7638db7ac6a3d4c">fd</a>]);
<a name="l00095"></a>00095 td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[uap-><a class="code" href="structclose__args.html#795acdf38594b16ee7638db7ac6a3d4c">fd</a>] = 0x0;
<a name="l00096"></a>00096 td-><a class="code" href="structthread.html#f3ec0788a84e5cb640a1646d1347998a">td_retval</a>[0] = 0x0;
<a name="l00097"></a>00097 <span class="keywordflow">return</span>(0x0);
<a name="l00098"></a>00098 }
<a name="l00099"></a>00099
<a name="l00103"></a><a class="code" href="kern__descrip_8c.html#c26938ed109edd82077382276bc8258c">00103</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#ec82fd17dad5642277af6dc43f9893c5">getdtablesize</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td, <span class="keyword">struct</span> <a class="code" href="structgetdtablesize__args.html">getdtablesize_args</a> *uap) {
<a name="l00104"></a>00104 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00105"></a>00105 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00106"></a>00106 <span class="preprocessor"> #endif</span>
<a name="l00107"></a>00107 <span class="preprocessor"></span> td-><a class="code" href="structthread.html#f3ec0788a84e5cb640a1646d1347998a">td_retval</a>[0] = <a class="code" href="thread_8h.html#e333ffa5f209eaaffead0a7fce87af29">O_FILES</a>;
<a name="l00108"></a>00108 <span class="keywordflow">return</span> (0);
<a name="l00109"></a>00109 }
<a name="l00110"></a>00110
<a name="l00111"></a>00111 <span class="comment">/* HACK */</span>
<a name="l00112"></a><a class="code" href="kern__descrip_8c.html#7c76b4ddffdfc9064786782334a40291">00112</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#8216f802387d3e6eded7f31568d741ff">fstat</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td,<span class="keyword">struct</span> <a class="code" href="structfstat__args.html">fstat_args</a> *uap) {
<a name="l00113"></a>00113 <span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *fp = 0x0;
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00116"></a>00116 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00117"></a>00117 <span class="preprocessor"> #endif</span>
<a name="l00118"></a>00118 <span class="preprocessor"></span>
<a name="l00119"></a>00119 fp = (<span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *)<a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#481c2e7084fec272e616d3fb984036e2">td</a>.<a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[uap-><a class="code" href="structfstat__args.html#1bebabe9301b24f1546f59fa60962a07">fd</a>];
<a name="l00120"></a>00120 uap-><a class="code" href="structfstat__args.html#68d8bd4f5caa652e218234d4375f6c13">sb</a>-><a class="code" href="structstat.html#5cbdd829011af82ba61e83773bbcbc7d">st_mode</a> = 0x2180;
<a name="l00121"></a>00121 uap-><a class="code" href="structfstat__args.html#68d8bd4f5caa652e218234d4375f6c13">sb</a>-><a class="code" href="structstat.html#38d474e1ae3cf6fbdde89ac3c3e308f1">st_blksize</a> = 0<a class="code" href="ap-boot_8S.html#f78b91f02427adef14bb8b28aa93baa5">x1000</a>;
<a name="l00122"></a>00122 <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"fstat: %i"</span>,uap-><a class="code" href="structfstat__args.html#1bebabe9301b24f1546f59fa60962a07">fd</a>);
<a name="l00123"></a>00123 <span class="keywordflow">return</span>(0x0);
<a name="l00124"></a>00124 }
<a name="l00125"></a>00125
<a name="l00131"></a><a class="code" href="kern__descrip_8c.html#899127227d8b9c9da3bcccc32332c749">00131</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#dd9e21938f9a168f9be49ddbfe03fed1">ioctl</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td, <span class="keyword">struct</span> <a class="code" href="structioctl__args.html">ioctl_args</a> *uap) {
<a name="l00132"></a>00132 td-><a class="code" href="structthread.html#f3ec0788a84e5cb640a1646d1347998a">td_retval</a>[0] = 0x0;
<a name="l00133"></a>00133 <span class="keywordflow">return</span>(0x0);
<a name="l00134"></a>00134 }
<a name="l00135"></a>00135
<a name="l00141"></a><a class="code" href="kern__descrip_8c.html#14e228d6e5391a882d3b20ff2466b2ac">00141</a> <span class="keywordtype">int</span> <a class="code" href="kern__descrip_8h.html#14e228d6e5391a882d3b20ff2466b2ac">getfd</a>(<span class="keyword">struct</span> <a class="code" href="structthread.html">thread</a> *td,<span class="keyword">struct</span> <a class="code" href="structfile.html">file</a> **fp,<span class="keywordtype">int</span> <a class="code" href="structfile.html#5a1b356e191a81d71a02560074aacd2a">fd</a>) {
<a name="l00142"></a>00142 <span class="keywordtype">int</span> error = 0x0;
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="preprocessor"> #ifdef DEBUG</span>
<a name="l00145"></a>00145 <span class="preprocessor"></span> <a class="code" href="kprint_8h.html#b2761bdf0cca73ad0fb5880895210cd8">kprintf</a>(<span class="stringliteral">"[%s:%i]"</span>,__FILE__,__LINE__);
<a name="l00146"></a>00146 <span class="preprocessor"> #endif</span>
<a name="l00147"></a>00147 <span class="preprocessor"></span>
<a name="l00148"></a>00148 *fp = (<span class="keyword">struct </span><a class="code" href="structfile.html">file</a> *)td-><a class="code" href="structthread.html#b95afb0c8c9a817ce1638be443cb5b12">o_files</a>[fd];
<a name="l00149"></a>00149
<a name="l00150"></a>00150 if (fp == 0x0)
<a name="l00151"></a>00151 error = -1;
<a name="l00152"></a>00152
<a name="l00153"></a>00153 <span class="keywordflow">return</span>(error);
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 <span class="comment">/***</span>
<a name="l00157"></a>00157 <span class="comment"> END</span>
<a name="l00158"></a>00158 <span class="comment"> ***/</span>
<a name="l00159"></a>00159
</pre></div><hr size="1"><address style="align: right;"><small>Generated on Fri Dec 15 11:18:55 2006 for UbixOS V2 by
<a href="http://www.doxygen.org/index.html">
<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.4.7 </small></address>
</body>
</html>
