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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_bcb67723b759fa7c88f0f248d2c080de.html">mpi</a></div>
<h1>system.c</h1><a href="system_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) 2002-2005 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: system_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="mpi_8h.html">mpi/mpi.h</a>></span>
<a name="l00031"></a>00031 <span class="preprocessor">#include <<a class="code" href="kmalloc_8h.html">lib/kmalloc.h</a>></span>
<a name="l00032"></a>00032 <span class="preprocessor">#include <<a class="code" href="lib_2string_8h.html">lib/string.h</a>></span>
<a name="l00033"></a>00033 <span class="preprocessor">#include <<a class="code" href="spinlock_8h.html">ubixos/spinlock.h</a>></span>
<a name="l00034"></a>00034
<a name="l00035"></a><a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">00035</a> <span class="keyword">static</span> <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *<a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a> = 0x0;
<a name="l00036"></a><a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">00036</a> <span class="keyword">static</span> <a class="code" href="spinlock_8h.html#a240e9404b4ede1e0d714610080d1176">spinLock_t</a> <a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a> = <a class="code" href="spinlock_8h.html#0fe85a4f3642683148b25916d6c5eafd">SPIN_LOCK_INITIALIZER</a>;
<a name="l00037"></a>00037
<a name="l00038"></a>00038 <span class="comment">/*****************************************************************************************</span>
<a name="l00039"></a>00039 <span class="comment"></span>
<a name="l00040"></a>00040 <span class="comment"> Function: static mpiMbox_t * mpiFindMbox(char *name)</span>
<a name="l00041"></a>00041 <span class="comment"></span>
<a name="l00042"></a>00042 <span class="comment"> Description: This function will find a mail box that matches the supplied name</span>
<a name="l00043"></a>00043 <span class="comment"></span>
<a name="l00044"></a>00044 <span class="comment"> Notes: This function is not task-safe! Lock must be done before call.</span>
<a name="l00045"></a>00045 <span class="comment"></span>
<a name="l00046"></a>00046 <span class="comment">*****************************************************************************************/</span>
<a name="l00047"></a><a class="code" href="system_8c.html#4c1ab97a8c5205302e9f2a588bedc730">00047</a> <span class="keyword">static</span> <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> * <a class="code" href="system_8c.html#4c1ab97a8c5205302e9f2a588bedc730">mpi_findMbox</a>(<span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#8f8f80d37794cde9472343e4487ba3eb">name</a>) {
<a name="l00048"></a>00048 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00049"></a>00049
<a name="l00050"></a>00050 <span class="keywordflow">for</span> (mbox = <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a>;mbox;mbox = mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a>) {
<a name="l00051"></a>00051 <span class="keywordflow">if</span> (!<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(mbox-><a class="code" href="structmpi__mbox.html#1dd212ba5f9ee0acea4c50534510e0d8">name</a>,name)) {
<a name="l00052"></a>00052 <span class="keywordflow">return</span>(mbox);
<a name="l00053"></a>00053 }
<a name="l00054"></a>00054 }
<a name="l00055"></a>00055
<a name="l00056"></a>00056 <span class="keywordflow">return</span>(0x0);
<a name="l00057"></a>00057 }
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="comment">/*****************************************************************************************</span>
<a name="l00060"></a>00060 <span class="comment"></span>
<a name="l00061"></a>00061 <span class="comment"> Function: int mpiCreateMbox(char *name)</span>
<a name="l00062"></a>00062 <span class="comment"></span>
<a name="l00063"></a>00063 <span class="comment"> Description: This function will create a new mailbox if it fails it will return -1</span>
<a name="l00064"></a>00064 <span class="comment"> otherwise it returns 0x0</span>
<a name="l00065"></a>00065 <span class="comment"></span>
<a name="l00066"></a>00066 <span class="comment"> Notes:</span>
<a name="l00067"></a>00067 <span class="comment"></span>
<a name="l00068"></a>00068 <span class="comment">*****************************************************************************************/</span>
<a name="l00069"></a><a class="code" href="system_8c.html#7fe5c18f6d5c29d15a74277234d18739">00069</a> <span class="keywordtype">int</span> <a class="code" href="mpi_8h.html#454c70b9013b47d4e8fd0e45af331c69">mpi_createMbox</a>(<span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#8f8f80d37794cde9472343e4487ba3eb">name</a>) {
<a name="l00070"></a>00070 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00071"></a>00071
<a name="l00072"></a>00072 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00073"></a>00073 <span class="keywordflow">if</span> (<a class="code" href="system_8c.html#4c1ab97a8c5205302e9f2a588bedc730">mpi_findMbox</a>(name) != 0x0) {
<a name="l00074"></a>00074 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00075"></a>00075 <span class="keywordflow">return</span>(-1);
<a name="l00076"></a>00076 }
<a name="l00077"></a>00077
<a name="l00078"></a>00078 mbox = (<a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="structmpi__mbox.html">mpi_mbox_t</a>));
<a name="l00079"></a>00079
<a name="l00080"></a>00080 <a class="code" href="lib_2string_8h.html#c38cd16373d98782e1465bd3d5aba470">sprintf</a>(mbox-><a class="code" href="structmpi__mbox.html#1dd212ba5f9ee0acea4c50534510e0d8">name</a>,name);
<a name="l00081"></a>00081 mbox-><a class="code" href="structmpi__mbox.html#b9e2e323d303e4f0aa69bdb2066b92ba">pid</a> = <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>;
<a name="l00082"></a>00082
<a name="l00083"></a>00083 <span class="keywordflow">if</span> (<a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a> == 0x0) {
<a name="l00084"></a>00084 mbox-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a> = 0x0;
<a name="l00085"></a>00085 mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a> = 0x0;
<a name="l00086"></a>00086 <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a> = mbox;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 <span class="keywordflow">else</span> {
<a name="l00089"></a>00089 mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a> = <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a>;
<a name="l00090"></a>00090 mbox-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a> = 0x0;
<a name="l00091"></a>00091 <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a>-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a> = mbox;
<a name="l00092"></a>00092 <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a> = mbox;
<a name="l00093"></a>00093 }
<a name="l00094"></a>00094
<a name="l00095"></a>00095 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00096"></a>00096 <span class="keywordflow">return</span>(0x0);
<a name="l00097"></a>00097 }
<a name="l00098"></a>00098
<a name="l00099"></a>00099 <span class="comment">/*****************************************************************************************</span>
<a name="l00100"></a>00100 <span class="comment"></span>
<a name="l00101"></a>00101 <span class="comment"> Function: int mpiSpam(uInt32 type,void *data)</span>
<a name="l00102"></a>00102 <span class="comment"></span>
<a name="l00103"></a>00103 <span class="comment"> Description: This function will send a message to every mailbox</span>
<a name="l00104"></a>00104 <span class="comment"></span>
<a name="l00105"></a>00105 <span class="comment"> Notes:</span>
<a name="l00106"></a>00106 <span class="comment"></span>
<a name="l00107"></a>00107 <span class="comment">*****************************************************************************************/</span>
<a name="l00108"></a><a class="code" href="system_8c.html#806e9deddf18f8be353745a16e8f5e85">00108</a> <span class="keywordtype">int</span> <a class="code" href="mpi_8h.html#ebee857d028fff3e542529c5b711e06a">mpi_spam</a>(<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> type,<span class="keywordtype">void</span> *data) {
<a name="l00109"></a>00109 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00110"></a>00110 <a class="code" href="structmpi__message.html">mpi_message_t</a> *message = 0x0;
<a name="l00111"></a>00111
<a name="l00112"></a>00112 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00113"></a>00113
<a name="l00114"></a>00114 <span class="keywordflow">for</span> (mbox = <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a>;mbox;mbox = mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a>) {
<a name="l00115"></a>00115 message = (<a class="code" href="structmpi__message.html">mpi_message_t</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="structmpi__message.html">mpi_message_t</a>));
<a name="l00116"></a>00116
<a name="l00117"></a>00117 message-><a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a> = type;
<a name="l00118"></a>00118 <a class="code" href="lib_2string_8h.html#e33b18edb618c656b9b795b9fce2316c">memcpy</a>(message-><a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,data,<a class="code" href="mpi_8h.html#c146c3c7afc6f342ae4f476bd46d924a">MESSAGE_LENGTH</a>);
<a name="l00119"></a>00119 message-><a class="code" href="structmpi__message.html#b0773f30b407ced06f0b52de72b7aebb">next</a> = 0x0;
<a name="l00120"></a>00120
<a name="l00121"></a>00121 <span class="keywordflow">if</span> (mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> == 0x0) {
<a name="l00122"></a>00122 mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> = message;
<a name="l00123"></a>00123 }
<a name="l00124"></a>00124 <span class="keywordflow">else</span> {
<a name="l00125"></a>00125 mbox-><a class="code" href="structmpi__mbox.html#c359cd90f2d9d09b5340a615c6a24e98">msgLast</a>-><a class="code" href="structmpi__message.html#b0773f30b407ced06f0b52de72b7aebb">next</a> = message;
<a name="l00126"></a>00126 mbox-><a class="code" href="structmpi__mbox.html#c359cd90f2d9d09b5340a615c6a24e98">msgLast</a> = message;
<a name="l00127"></a>00127 }
<a name="l00128"></a>00128 }
<a name="l00129"></a>00129
<a name="l00130"></a>00130 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00131"></a>00131 <span class="keywordflow">return</span>(0x0);
<a name="l00132"></a>00132 }
<a name="l00133"></a>00133
<a name="l00134"></a>00134 <span class="comment">/*****************************************************************************************</span>
<a name="l00135"></a>00135 <span class="comment"></span>
<a name="l00136"></a>00136 <span class="comment"> Function: int mpiPostMessage(char *name,uInt32 type,void *data)</span>
<a name="l00137"></a>00137 <span class="comment"></span>
<a name="l00138"></a>00138 <span class="comment"> Description: This function will post a message to specified mailbox</span>
<a name="l00139"></a>00139 <span class="comment"></span>
<a name="l00140"></a>00140 <span class="comment"> Notes:</span>
<a name="l00141"></a>00141 <span class="comment"></span>
<a name="l00142"></a>00142 <span class="comment">*****************************************************************************************/</span>
<a name="l00143"></a><a class="code" href="system_8c.html#27f6a180049b096910c4ffd8b152fbb8">00143</a> <span class="keywordtype">int</span> <a class="code" href="mpi_8h.html#1c2c24c44767f282cddb50a9affa3f55">mpi_postMessage</a>(<span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#8f8f80d37794cde9472343e4487ba3eb">name</a>,<a class="code" href="types_8h.html#5847ea0262a5aa61eee48cbe95544a78">uInt32</a> type,<a class="code" href="structmpi__message.html">mpi_message_t</a> *msg) {
<a name="l00144"></a>00144 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00145"></a>00145 <a class="code" href="structmpi__message.html">mpi_message_t</a> *message = 0x0;
<a name="l00146"></a>00146
<a name="l00147"></a>00147 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00148"></a>00148
<a name="l00149"></a>00149 mbox = <a class="code" href="system_8c.html#4c1ab97a8c5205302e9f2a588bedc730">mpi_findMbox</a>(name);
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordflow">if</span> (mbox == 0x0) {
<a name="l00152"></a>00152 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00153"></a>00153 <span class="keywordflow">return</span>(0<a class="code" href="ap-boot_8S.html#1a3ac2137e21f6f0d400f1996914dd19">x1</a>);
<a name="l00154"></a>00154 }
<a name="l00155"></a>00155
<a name="l00156"></a>00156 message = (<a class="code" href="structmpi__message.html">mpi_message_t</a> *)<a class="code" href="kmalloc_8h.html#150eab2ac4ce4553e21ca10e7f441762">kmalloc</a>(<span class="keyword">sizeof</span>(<a class="code" href="structmpi__message.html">mpi_message_t</a>));
<a name="l00157"></a>00157
<a name="l00158"></a>00158 message-><a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a> = msg-><a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a>;
<a name="l00159"></a>00159 <a class="code" href="lib_2string_8h.html#e33b18edb618c656b9b795b9fce2316c">memcpy</a>(message-><a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,msg-><a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,<a class="code" href="mpi_8h.html#c146c3c7afc6f342ae4f476bd46d924a">MESSAGE_LENGTH</a>);
<a name="l00160"></a>00160 message-><a class="code" href="structmpi__message.html#ebe00f8f5a01ec8d4f56f8fab455ca8c">pid</a> = <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>;
<a name="l00161"></a>00161 message-><a class="code" href="structmpi__message.html#b0773f30b407ced06f0b52de72b7aebb">next</a> = 0x0;
<a name="l00162"></a>00162
<a name="l00163"></a>00163 <span class="keywordflow">if</span> (mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> == 0x0) {
<a name="l00164"></a>00164 mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> = message;
<a name="l00165"></a>00165 }
<a name="l00166"></a>00166 <span class="keywordflow">else</span> {
<a name="l00167"></a>00167 mbox-><a class="code" href="structmpi__mbox.html#c359cd90f2d9d09b5340a615c6a24e98">msgLast</a>-><a class="code" href="structmpi__message.html#b0773f30b407ced06f0b52de72b7aebb">next</a> = message;
<a name="l00168"></a>00168 mbox-><a class="code" href="structmpi__mbox.html#c359cd90f2d9d09b5340a615c6a24e98">msgLast</a> = message;
<a name="l00169"></a>00169 }
<a name="l00170"></a>00170
<a name="l00171"></a>00171 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00172"></a>00172
<a name="l00173"></a>00173 <span class="keywordflow">if</span> (type == 0x2) {
<a name="l00174"></a>00174 <span class="keywordflow">while</span> (mbox-><a class="code" href="structmpi__mbox.html#c359cd90f2d9d09b5340a615c6a24e98">msgLast</a> != 0x0);
<a name="l00175"></a>00175 }
<a name="l00176"></a>00176
<a name="l00177"></a>00177 <span class="keywordflow">return</span>(0x0);
<a name="l00178"></a>00178 }
<a name="l00179"></a>00179
<a name="l00180"></a>00180 <span class="comment">/*****************************************************************************************</span>
<a name="l00181"></a>00181 <span class="comment"></span>
<a name="l00182"></a>00182 <span class="comment"> Function: int mpiFetchMessage(char *name,mpiMessage_t *msg)</span>
<a name="l00183"></a>00183 <span class="comment"></span>
<a name="l00184"></a>00184 <span class="comment"> Description: This function will fetch the next message out of the specified mailbox</span>
<a name="l00185"></a>00185 <span class="comment"></span>
<a name="l00186"></a>00186 <span class="comment"> Notes:</span>
<a name="l00187"></a>00187 <span class="comment"></span>
<a name="l00188"></a>00188 <span class="comment">*****************************************************************************************/</span>
<a name="l00189"></a><a class="code" href="system_8c.html#76ba344daaa7e476f1d23c4f23f31615">00189</a> <span class="keywordtype">int</span> <a class="code" href="mpi_8h.html#22e0e1e2617b3b69b2088c3fd41b7036">mpi_fetchMessage</a>(<span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#8f8f80d37794cde9472343e4487ba3eb">name</a>,<a class="code" href="structmpi__message.html">mpi_message_t</a> *msg) {
<a name="l00190"></a>00190 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00191"></a>00191 <a class="code" href="structmpi__message.html">mpi_message_t</a> *tmpMsg = 0x0;
<a name="l00192"></a>00192
<a name="l00193"></a>00193 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00194"></a>00194
<a name="l00195"></a>00195 mbox = <a class="code" href="system_8c.html#4c1ab97a8c5205302e9f2a588bedc730">mpi_findMbox</a>(name);
<a name="l00196"></a>00196
<a name="l00197"></a>00197 <span class="keywordflow">if</span> (mbox == 0x0) {
<a name="l00198"></a>00198 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00199"></a>00199 <span class="keywordflow">return</span>(-1);
<a name="l00200"></a>00200 }
<a name="l00201"></a>00201
<a name="l00202"></a>00202 <span class="keywordflow">if</span> (mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> == 0x0) {
<a name="l00203"></a>00203 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00204"></a>00204 <span class="keywordflow">return</span>(-1);
<a name="l00205"></a>00205 }
<a name="l00206"></a>00206
<a name="l00207"></a>00207 <span class="keywordflow">if</span> (mbox-><a class="code" href="structmpi__mbox.html#b9e2e323d303e4f0aa69bdb2066b92ba">pid</a> != <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>) {
<a name="l00208"></a>00208 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00209"></a>00209 <span class="keywordflow">return</span>(-1);
<a name="l00210"></a>00210 }
<a name="l00211"></a>00211
<a name="l00212"></a>00212 msg-><a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a> = mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a>-><a class="code" href="structmpi__message.html#218677ef8c9f6457e4008c20c79eed8d">header</a>;
<a name="l00213"></a>00213 <a class="code" href="lib_2string_8h.html#e33b18edb618c656b9b795b9fce2316c">memcpy</a>(msg-><a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a>-><a class="code" href="structmpi__message.html#0f190328e34c27044a954f9f088d5ca2">data</a>,<a class="code" href="mpi_8h.html#c146c3c7afc6f342ae4f476bd46d924a">MESSAGE_LENGTH</a>);
<a name="l00214"></a>00214 msg-><a class="code" href="structmpi__message.html#ebe00f8f5a01ec8d4f56f8fab455ca8c">pid</a> = mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a>-><a class="code" href="structmpi__message.html#ebe00f8f5a01ec8d4f56f8fab455ca8c">pid</a>;
<a name="l00215"></a>00215
<a name="l00216"></a>00216 tmpMsg = mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a>;
<a name="l00217"></a>00217 mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a> = mbox-><a class="code" href="structmpi__mbox.html#b69ac18686e2132261481320dc5e57d1">msg</a>-><a class="code" href="structmpi__message.html#b0773f30b407ced06f0b52de72b7aebb">next</a>;
<a name="l00218"></a>00218
<a name="l00219"></a>00219 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(tmpMsg);
<a name="l00220"></a>00220
<a name="l00221"></a>00221 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00222"></a>00222 <span class="keywordflow">return</span>(0x0);
<a name="l00223"></a>00223 }
<a name="l00224"></a>00224
<a name="l00225"></a>00225 <span class="comment">/*****************************************************************************************</span>
<a name="l00226"></a>00226 <span class="comment"></span>
<a name="l00227"></a>00227 <span class="comment"> Function: int mpiDestroyMbox(char *name)</span>
<a name="l00228"></a>00228 <span class="comment"></span>
<a name="l00229"></a>00229 <span class="comment"> Description: This function will fetch the next message out of the specified mailbox</span>
<a name="l00230"></a>00230 <span class="comment"></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="system_8c.html#bde5afef3a059fc7e8f355486f80a4cd">00234</a> <span class="keywordtype">int</span> <a class="code" href="mpi_8h.html#9b34d23f75ad6a36e1f9f62814a33547">mpi_destroyMbox</a>(<span class="keywordtype">char</span> *<a class="code" href="pci_8c.html#8f8f80d37794cde9472343e4487ba3eb">name</a>) {
<a name="l00235"></a>00235 <a class="code" href="structmpi__mbox.html">mpi_mbox_t</a> *mbox = 0x0;
<a name="l00236"></a>00236
<a name="l00237"></a>00237 <a class="code" href="spinlock_8h.html#2cd9a4502680fb8e7f0fe6b029e558b1">spinLock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00238"></a>00238
<a name="l00239"></a>00239 <span class="keywordflow">for</span> (mbox = <a class="code" href="system_8c.html#c312330417e35a3eb23ab89de51fb03f">mboxList</a>;mbox;mbox=mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a>) {
<a name="l00240"></a>00240 <span class="keywordflow">if</span> (!<a class="code" href="lib_2string_8h.html#6f3dcb20ff11ff9db5904c3cfb61a38c">strcmp</a>(mbox-><a class="code" href="structmpi__mbox.html#1dd212ba5f9ee0acea4c50534510e0d8">name</a>,name)) {
<a name="l00241"></a>00241 if (mbox-><a class="code" href="structmpi__mbox.html#b9e2e323d303e4f0aa69bdb2066b92ba">pid</a> != <a class="code" href="sched_8h.html#54397bfe18d5da4d50ff03b15f540858">_current</a>-><a class="code" href="structtaskStruct.html#30966587a60db6b40c8be6c387e11d81">id</a>) {
<a name="l00242"></a>00242 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00243"></a>00243 <span class="keywordflow">return</span>(-1);
<a name="l00244"></a>00244 }
<a name="l00245"></a>00245 mbox-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a>-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a> = mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a>;
<a name="l00246"></a>00246 mbox-><a class="code" href="structmpi__mbox.html#d8e3ec3d239e749dd9138875f72ead29">next</a>-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a> = mbox-><a class="code" href="structmpi__mbox.html#522d718a5601a2b84d451a63c3b548b7">prev</a>;
<a name="l00247"></a>00247 <a class="code" href="kmalloc_8h.html#aa9ed6886459604cf73ccdbf6410e487">kfree</a>(mbox);
<a name="l00248"></a>00248 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00249"></a>00249 <span class="keywordflow">return</span>(0x0);
<a name="l00250"></a>00250 }
<a name="l00251"></a>00251 }
<a name="l00252"></a>00252
<a name="l00253"></a>00253 <a class="code" href="spinlock_8h.html#dd996cbbb3b9826dd9c8cf02b66a4c65">spinUnlock</a>(&<a class="code" href="system_8c.html#204601b33f94cee6b1bca752c3088e3c">mpiSpinLock</a>);
<a name="l00254"></a>00254 <span class="keywordflow">return</span>(-1);
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256
<a name="l00257"></a>00257 <span class="comment">/***</span>
<a name="l00258"></a>00258 <span class="comment"> END</span>
<a name="l00259"></a>00259 <span class="comment"> ***/</span>
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