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author | Ali Labbene <ali.labbene@st.com> | 2019-12-09 11:25:19 +0100 |
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committer | Ali Labbene <ali.labbene@st.com> | 2019-12-10 16:34:57 +0100 |
commit | 76177aa280494bb36d7a0bcbda1078d4db717020 (patch) | |
tree | 1046b1d15478b732a6398bd810a314d2eef1d6f1 /Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html | |
parent | c2b2a927a229ee06e25ebc085d62ce0985dc0ee4 (diff) | |
download | st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.tar.gz st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.tar.bz2 st-cmsis-core-lowfat-76177aa280494bb36d7a0bcbda1078d4db717020.zip |
Official ARM version: v4.5
Diffstat (limited to 'Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html')
-rw-r--r-- | Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html b/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html new file mode 100644 index 0000000..843de70 --- /dev/null +++ b/Documentation/RTOS/html/group___c_m_s_i_s___r_t_o_s___inter_thread.html @@ -0,0 +1,133 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml"> +<head> +<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> +<meta http-equiv="X-UA-Compatible" content="IE=9"/> +<title>Inter-Thread Communication and Resource Sharing</title> +<title>CMSIS-RTOS: Inter-Thread Communication and Resource Sharing</title> +<link href="tabs.css" rel="stylesheet" type="text/css"/> +<link href="cmsis.css" rel="stylesheet" type="text/css" /> +<script type="text/javascript" src="jquery.js"></script> +<script type="text/javascript" src="dynsections.js"></script> +<script type="text/javascript" src="printComponentTabs.js"></script> +<link href="navtree.css" rel="stylesheet" type="text/css"/> +<script type="text/javascript" src="resize.js"></script> +<script type="text/javascript" src="navtree.js"></script> +<script type="text/javascript"> + $(document).ready(initResizable); +</script> +<link href="stylsheetf" rel="stylesheet" type="text/css" /> +</head> +<body> +<div id="top"><!-- do not remove this div, it is closed by doxygen! --> +<div id="titlearea"> +<table cellspacing="0" cellpadding="0"> + <tbody> + <tr style="height: 46px;"> + <td id="projectlogo"><img alt="Logo" src="CMSIS_Logo_Final.png"/></td> + <td style="padding-left: 0.5em;"> + <div id="projectname">CMSIS-RTOS +  <span id="projectnumber">Version 1.02</span> + </div> + <div id="projectbrief">CMSIS-RTOS API: Generic RTOS interface for Cortex-M processor-based devices.</div> + </td> + </tr> + </tbody> +</table> +</div> +<!-- end header part --> +<div id="CMSISnav" class="tabs1"> + <ul class="tablist"> + <script type="text/javascript"> + <!-- + writeComponentTabs.call(this); + //--> + </script> + </ul> +</div> +<!-- Generated by Doxygen 1.8.2 --> + <div id="navrow1" class="tabs"> + <ul class="tablist"> + <li><a href="index.html"><span>Main Page</span></a></li> + <li><a href="pages.html"><span>Usage and Description</span></a></li> + <li><a href="modules.html"><span>Reference</span></a></li> + </ul> + </div> +</div><!-- top --> +<div id="side-nav" class="ui-resizable side-nav-resizable"> + <div id="nav-tree"> + <div id="nav-tree-contents"> + <div id="nav-sync" class="sync"></div> + </div> + </div> + <div id="splitbar" style="-moz-user-select:none;" + class="ui-resizable-handle"> + </div> +</div> +<script type="text/javascript"> +$(document).ready(function(){initNavTree('group___c_m_s_i_s___r_t_o_s___inter_thread.html','');}); +</script> +<div id="doc-content"> +<div class="header"> + <div class="summary"> +<a href="#groups">Content</a> </div> + <div class="headertitle"> +<div class="title">Inter-Thread Communication and Resource Sharing</div> </div> +<div class="ingroups"><a class="el" href="group___c_m_s_i_s___r_t_o_s.html">CMSIS-RTOS API</a></div></div><!--header--> +<div class="contents"> + +<p>Functions for inter-thread communication. +<a href="#details">More...</a></p> +<table class="memberdecls"> +<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="groups"></a> +Content</h2></td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___signal_mgmt"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___signal_mgmt.html">Signal Events</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___signal_mgmt"><td class="mdescLeft"> </td><td class="mdescRight">Synchronize threads using signals. <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___message"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___message.html">Message Queue</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___message"><td class="mdescLeft"> </td><td class="mdescRight">Exchange messages between threads in a FIFO-like operation. <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___pool_mgmt"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___pool_mgmt.html">Memory Pool</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___pool_mgmt"><td class="mdescLeft"> </td><td class="mdescRight">Manage thread-safe fixed-size blocks of dynamic memory. <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___mail"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___mail.html">Mail Queue</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___mail"><td class="mdescLeft"> </td><td class="mdescRight">Exchange data between threads using a queue of memory blocks. <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___mutex_mgmt"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___mutex_mgmt.html">Mutexes</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___mutex_mgmt"><td class="mdescLeft"> </td><td class="mdescRight">Synchronize resource access using Mutual Exclusion (Mutex). <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +<tr class="memitem:group___c_m_s_i_s___r_t_o_s___semaphore_mgmt"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="group___c_m_s_i_s___r_t_o_s___semaphore_mgmt.html">Semaphores</a></td></tr> +<tr class="memdesc:group___c_m_s_i_s___r_t_o_s___semaphore_mgmt"><td class="mdescLeft"> </td><td class="mdescRight">Access shared resources simultaneously from different threads. <br/></td></tr> +<tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> +</table> +<a name="details" id="details"></a><h2 class="groupheader">Description</h2> +<p>In most applications, threads need to <b>communicate</b> <b>with</b> <b>each</b> <b>other</b> or <b>access</b> <b>shared</b> <b>resources</b> together. There are many ways to exchange data between threads, for example using shared data, polling loops and message passing.</p> +<p>Many resources in a microcontroller can be considered as <b>serially-reusable</b>. This means that they can be used repeatedly by different threads, but only by <b>one</b> <b>thread</b> <b>at</b> <b>a</b> <b>time</b> (for example communication peripherals such as <b>UARTs</b>, <b>memory</b>, and <b>files</b> that need to be modified).</p> +<p>The CMSIS-RTOS API provides different means to pass messages between threads to make inter-thread communication more efficient. Also, resource sharing is inherently supported. The following methods are available to the user: </p> +<h2>Inter-Thread Communication</h2> +<ul> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___signal_mgmt.html">Signal Events</a></li> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___message.html">Message Queue</a></li> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___pool_mgmt.html">Memory Pool</a></li> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___mail.html">Mail Queue</a></li> +</ul> +<h2>Resource Sharing</h2> +<ul> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___mutex_mgmt.html">Mutexes</a></li> +<li><a class="el" href="group___c_m_s_i_s___r_t_o_s___semaphore_mgmt.html">Semaphores</a> </li> +</ul> +</div><!-- contents --> +</div><!-- doc-content --> +<!-- start footer part --> +<div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> + <ul> + <li class="footer">Generated on Tue Oct 27 2015 14:35:43 for CMSIS-RTOS by ARM Ltd. All rights reserved. + <!-- + <a href="http://www.doxygen.org/index.html"> + <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.2 + --> + </li> + </ul> +</div> +</body> +</html> |