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 <span id="projectnumber">2.0</span>
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<a href="#func-members">Functions</a> </div>
<div class="headertitle">
<div class="title">Mailboxes<div class="ingroups"><a class="el" href="../../db/d82/group__sys__layer.html">Porting (system abstraction layer)</a> » <a class="el" href="../../de/d7c/group__sys__os.html">OS abstraction layer</a></div></div> </div>
</div><!--header-->
<div class="contents">
<div class="dynheader">
Collaboration diagram for Mailboxes:</div>
<div class="dyncontent">
<div class="center"><img src="../../d8/dc0/group__sys__mbox.png" border="0" usemap="#d8_2dc0_2group____sys____mbox" alt=""/></div>
<map name="d8_2dc0_2group____sys____mbox" id="d8_2dc0_2group____sys____mbox">
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<area shape="rect" href="../../de/d7c/group__sys__os.html" title=" " alt="" coords="5,5,147,31"/>
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<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:gacc53b5c30f131abc40f0885d39d32f87"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#gacc53b5c30f131abc40f0885d39d32f87">sys_arch_mbox_fetch</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb, void **msg, <a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> timeout)</td></tr>
<tr class="separator:gacc53b5c30f131abc40f0885d39d32f87"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga3e0e0f02be2f670ebfb093a21f7dcdb8"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#ga3e0e0f02be2f670ebfb093a21f7dcdb8">sys_arch_mbox_tryfetch</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb, void **msg)</td></tr>
<tr class="separator:ga3e0e0f02be2f670ebfb093a21f7dcdb8"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gad4a51a28337f89d4b4806e6deb99798d"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#gad4a51a28337f89d4b4806e6deb99798d">sys_mbox_free</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb)</td></tr>
<tr class="separator:gad4a51a28337f89d4b4806e6deb99798d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga26c015e64c859c9361a6f75c4e6fa829"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#ga26c015e64c859c9361a6f75c4e6fa829">sys_mbox_new</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb, int size)</td></tr>
<tr class="separator:ga26c015e64c859c9361a6f75c4e6fa829"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga8ff11ed9831af7ca486123f74d4064ac"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#ga8ff11ed9831af7ca486123f74d4064ac">sys_mbox_post</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb, void *msg)</td></tr>
<tr class="separator:ga8ff11ed9831af7ca486123f74d4064ac"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ga64ca1b1ef4c810f4d67595eca4fdfef0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#ga64ca1b1ef4c810f4d67595eca4fdfef0">sys_mbox_set_invalid</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb)</td></tr>
<tr class="separator:ga64ca1b1ef4c810f4d67595eca4fdfef0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gacc06f47f34de04084e1d49788ce871b6"><td class="memItemLeft" align="right" valign="top"><a class="el" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#gacc06f47f34de04084e1d49788ce871b6">sys_mbox_trypost</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb, void *msg)</td></tr>
<tr class="separator:gacc06f47f34de04084e1d49788ce871b6"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:gadf4b8fccb41fe2d76e88bef546e8e8bb"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="../../d8/dc0/group__sys__mbox.html#gadf4b8fccb41fe2d76e88bef546e8e8bb">sys_mbox_valid</a> (struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> **mb)</td></tr>
<tr class="separator:gadf4b8fccb41fe2d76e88bef546e8e8bb"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<h2 class="groupheader">Function Documentation</h2>
<a id="gacc53b5c30f131abc40f0885d39d32f87"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gacc53b5c30f131abc40f0885d39d32f87">◆ </a></span>sys_arch_mbox_fetch()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> sys_arch_mbox_fetch </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void ** </td>
<td class="paramname"><em>msg</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> </td>
<td class="paramname"><em>timeout</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Wait for a new message to arrive in the mbox </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>mbox to get a message from </td></tr>
<tr><td class="paramname">msg</td><td>pointer where the message is stored </td></tr>
<tr><td class="paramname">timeout</td><td>maximum time (in milliseconds) to wait for a message (0 = wait forever) </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>time (in milliseconds) waited for a message, may be 0 if not waited or SYS_ARCH_TIMEOUT on timeout The returned time has to be accurate to prevent timer jitter! </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00286">286</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
</div>
</div>
<a id="ga3e0e0f02be2f670ebfb093a21f7dcdb8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga3e0e0f02be2f670ebfb093a21f7dcdb8">◆ </a></span>sys_arch_mbox_tryfetch()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../d0/d27/include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> sys_arch_mbox_tryfetch </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void ** </td>
<td class="paramname"><em>msg</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Wait for a new message to arrive in the mbox </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>mbox to get a message from </td></tr>
<tr><td class="paramname">msg</td><td>pointer where the message is stored </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>0 (milliseconds) if a message has been received or SYS_MBOX_EMPTY if the mailbox is empty </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00335">335</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
</div>
</div>
<a id="gad4a51a28337f89d4b4806e6deb99798d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gad4a51a28337f89d4b4806e6deb99798d">◆ </a></span>sys_mbox_free()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void sys_mbox_free </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Delete an mbox </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>mbox to delete </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00193">193</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
<p class="reference">References <a class="el" href="../../d6/d8a/fat__string_8h_source.html#l00017">NULL</a>, and <a class="el" href="../../df/dc7/sys__arch_8h_source.html#l00007">SYS_MBOX_NULL</a>.</p>
</div>
</div>
<a id="ga26c015e64c859c9361a6f75c4e6fa829"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga26c015e64c859c9361a6f75c4e6fa829">◆ </a></span>sys_mbox_new()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> sys_mbox_new </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>size</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Create a new mbox of specified size </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>pointer to the mbox to create </td></tr>
<tr><td class="paramname">size</td><td>(minimum) number of messages in this mbox </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>ERR_OK if successful, another err_t otherwise </dd></dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00160">160</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
</div>
</div>
<a id="ga8ff11ed9831af7ca486123f74d4064ac"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga8ff11ed9831af7ca486123f74d4064ac">◆ </a></span>sys_mbox_post()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void sys_mbox_post </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>msg</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Post a message to an mbox - may not fail -> blocks if full, only used from tasks not from ISR </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>mbox to posts the message </td></tr>
<tr><td class="paramname">msg</td><td>message to post (ATTENTION: can be NULL) </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00214">214</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
<p class="reference">References <a class="el" href="../../df/dc7/sys__arch_8h_source.html#l00023">head</a>.</p>
</div>
</div>
<a id="ga64ca1b1ef4c810f4d67595eca4fdfef0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ga64ca1b1ef4c810f4d67595eca4fdfef0">◆ </a></span>sys_mbox_set_invalid()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">void sys_mbox_set_invalid </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Set an mbox invalid so that sys_mbox_valid returns 0 </p>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00374">374</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
</div>
</div>
<a id="gacc06f47f34de04084e1d49788ce871b6"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gacc06f47f34de04084e1d49788ce871b6">◆ </a></span>sys_mbox_trypost()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="../../d2/de7/group__infrastructure__errors.html#gaf02d9da80fd66b4f986d2c53d7231ddb">err_t</a> sys_mbox_trypost </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>msg</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Try to post a message to an mbox - may fail if full or ISR </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">mbox</td><td>mbox to posts the message </td></tr>
<tr><td class="paramname">msg</td><td>message to post (ATTENTION: can be NULL) </td></tr>
</table>
</dd>
</dl>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00250">250</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
<p class="reference">References <a class="el" href="../../df/dc7/sys__arch_8h_source.html#l00023">head</a>.</p>
</div>
</div>
<a id="gadf4b8fccb41fe2d76e88bef546e8e8bb"></a>
<h2 class="memtitle"><span class="permalink"><a href="#gadf4b8fccb41fe2d76e88bef546e8e8bb">◆ </a></span>sys_mbox_valid()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int sys_mbox_valid </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="../../d5/d0a/structsys__mbox.html">sys_mbox</a> ** </td>
<td class="paramname"><em>mb</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid </p>
<p class="definition">Definition at line <a class="el" href="../../d9/d56/sys__arch_8c_source.html#l00366">366</a> of file <a class="el" href="../../d9/d56/sys__arch_8c_source.html">sys_arch.c</a>.</p>
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