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<title>ChibiOS/RT: chschd.h File Reference</title>
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<td style="width: 80px;"><img alt="ChibiOS/RT Logo" src="logo_small.png"></td>
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<td><big><big>ChibiOS/RT</big></big><br><br>Architecture - Reference Manual - Guides</td>
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<li><a href="annotated.html"><span>Data Structures</span></a></li>
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<a href="#nested-classes">Data Structures</a> |
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<a href="#define-members">Defines</a> |
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<a href="#func-members">Functions</a> </div>
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<div class="headertitle">
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<h1>chschd.h File Reference</h1> </div>
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<div class="contents">
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<p>Scheduler macros and structures.
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<a href="#_details">More...</a></p>
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<p><a href="chschd_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr><td colspan="2"><h2><a name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">struct </td><td class="memItemRight" valign="bottom"><a class="el" href="struct_ready_list.html">ReadyList</a></td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Ready list header. <a href="struct_ready_list.html#_details">More...</a><br/></td></tr>
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<tr><td colspan="2"><h2><a name="define-members"></a>
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Defines</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gae1c86078318e11c2fa57ee3c2ec69f61">RDY_OK</a> 0</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Default thread wakeup low level message. <a href="group__scheduler.html#gae1c86078318e11c2fa57ee3c2ec69f61"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gaf28d5427eeeb8f737cc7db495157780c">RDY_TIMEOUT</a> -1</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Low level message sent to a thread awakened by a timeout. <a href="group__scheduler.html#gaf28d5427eeeb8f737cc7db495157780c"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga3a606c833796229f23adcb3f6c404a81">RDY_RESET</a> -2</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Low level message sent to a thread awakened by a reset operation. <a href="group__scheduler.html#ga3a606c833796229f23adcb3f6c404a81"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gaeb0aae94eb04f9809571cdab39679651">NOPRIO</a> 0</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Ready list header priority. <a href="group__scheduler.html#gaeb0aae94eb04f9809571cdab39679651"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gacfbd3f4098069329a23d7ec54a7fb8ab">IDLEPRIO</a> 1</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Idle thread priority. <a href="group__scheduler.html#gacfbd3f4098069329a23d7ec54a7fb8ab"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga38aff897bc7950077d5985b3d4bcf4d5">LOWPRIO</a> 2</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Lowest user priority. <a href="group__scheduler.html#ga38aff897bc7950077d5985b3d4bcf4d5"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gad6a6b28f0c1cf8e0da714ef771fb90a0">NORMALPRIO</a> 64</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Normal user priority. <a href="group__scheduler.html#gad6a6b28f0c1cf8e0da714ef771fb90a0"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga0621c307e30868052b802fbc821297e8">HIGHPRIO</a> 127</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Highest user priority. <a href="group__scheduler.html#ga0621c307e30868052b802fbc821297e8"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gadb5ffd31ad382d3b83488e6b6780f03f">ABSPRIO</a> 255</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Greatest possible priority. <a href="group__scheduler.html#gadb5ffd31ad382d3b83488e6b6780f03f"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gad1ac15e9e5fc17810a94a779257f3d29">TIME_IMMEDIATE</a> ((<a class="el" href="group__types.html#gae3e32a98d431a02106616da3071832dd">systime_t</a>)-1)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Zero time specification for some syscalls with a timeout specification. <a href="group__scheduler.html#gad1ac15e9e5fc17810a94a779257f3d29"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gae1568cf3090c973c3bc47f86ae2f5afb">TIME_INFINITE</a> ((<a class="el" href="group__types.html#gae3e32a98d431a02106616da3071832dd">systime_t</a>)0)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Infinite time specification for all the syscalls with a timeout specification. <a href="group__scheduler.html#gae1568cf3090c973c3bc47f86ae2f5afb"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gaa3e744fe83212f48d7373b764b9abb2d">firstprio</a>(rlp) ((rlp)->p_next->p_prio)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Returns the priority of the first thread on the given ready list. <a href="group__scheduler.html#gaa3e744fe83212f48d7373b764b9abb2d"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga1a5fddde56420e8accd0c09c1abb32a7">currp</a> rlist.r_current</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Current thread pointer access macro. <a href="group__scheduler.html#ga1a5fddde56420e8accd0c09c1abb32a7"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga226bd98a30b2db31dbb1ecc572c18da2">setcurrp</a>(tp) (currp = (tp))</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Current thread pointer change macro. <a href="group__scheduler.html#ga226bd98a30b2db31dbb1ecc572c18da2"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga146230c1fe7e6dab4bc6649f2a71444c">chSchIsRescRequiredI</a>() (firstprio(&rlist.r_queue) > currp->p_prio)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Determines if the current thread must reschedule. <a href="group__scheduler.html#ga146230c1fe7e6dab4bc6649f2a71444c"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gac45d5a97963db4129d95645429e2dd8b">chSchCanYieldS</a>() (firstprio(&rlist.r_queue) >= currp->p_prio)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Determines if yielding is possible. <a href="group__scheduler.html#gac45d5a97963db4129d95645429e2dd8b"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga8fd763c1a004a010fc13575578edefbd">chSchDoYieldS</a>()</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Yields the time slot. <a href="group__scheduler.html#ga8fd763c1a004a010fc13575578edefbd"></a><br/></td></tr>
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<tr><td colspan="2"><h2><a name="func-members"></a>
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Functions</h2></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gab258cc2856e5f6bb125907cc23358fbd">scheduler_init</a> (void)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Scheduler initialization. <a href="group__scheduler.html#gab258cc2856e5f6bb125907cc23358fbd"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="struct_thread.html">Thread</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga535d58cfb3436c8d4e4586c31c062298">chSchReadyI</a> (<a class="el" href="struct_thread.html">Thread</a> *tp)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Inserts a thread in the Ready List. <a href="group__scheduler.html#ga535d58cfb3436c8d4e4586c31c062298"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga97c1c514b755a1e71caf2f19c1ccf986">chSchGoSleepS</a> (<a class="el" href="group__types.html#ga52d7ed152360a74632afa37bbeeca7ca">tstate_t</a> newstate)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Puts the current thread to sleep into the specified state. <a href="group__scheduler.html#ga97c1c514b755a1e71caf2f19c1ccf986"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__types.html#ga35bcb0c321cd7bc45bf1a11fa17ebdd3">msg_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga306e564f678c1a39139639490c77e78b">chSchGoSleepTimeoutS</a> (<a class="el" href="group__types.html#ga52d7ed152360a74632afa37bbeeca7ca">tstate_t</a> newstate, <a class="el" href="group__types.html#gae3e32a98d431a02106616da3071832dd">systime_t</a> time)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Puts the current thread to sleep into the specified state with timeout specification. <a href="group__scheduler.html#ga306e564f678c1a39139639490c77e78b"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#gae47a8819a21ef2d521124e76bfb37c95">chSchWakeupS</a> (<a class="el" href="struct_thread.html">Thread</a> *ntp, <a class="el" href="group__types.html#ga35bcb0c321cd7bc45bf1a11fa17ebdd3">msg_t</a> msg)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Wakes up a thread. <a href="group__scheduler.html#gae47a8819a21ef2d521124e76bfb37c95"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga0257cf203e72a766a52059750cb97e6e">chSchDoRescheduleI</a> (void)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Switches to the first thread on the runnable queue. <a href="group__scheduler.html#ga0257cf203e72a766a52059750cb97e6e"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga4e38b4bee3d2330f6a0f1cdb7660af20">chSchRescheduleS</a> (void)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Performs a reschedule if a higher priority thread is runnable. <a href="group__scheduler.html#ga4e38b4bee3d2330f6a0f1cdb7660af20"></a><br/></td></tr>
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<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="group__types.html#ga7556af1cb61728b53228fa3af1c851de">bool_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="group__scheduler.html#ga5fa012ef9d1e920983fe2aea2695a52a">chSchIsRescRequiredExI</a> (void)</td></tr>
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<tr><td class="mdescLeft"> </td><td class="mdescRight">Evaluates if a reschedule is required. <a href="group__scheduler.html#ga5fa012ef9d1e920983fe2aea2695a52a"></a><br/></td></tr>
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</table>
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<hr/><a name="_details"></a><h2>Detailed Description</h2>
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<p>Scheduler macros and structures. </p>
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<p>Definition in file <a class="el" href="chschd_8h_source.html">chschd.h</a>.</p>
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Generated on Sun Oct 24 2010 09:40:38 for ChibiOS/RT by <a href="http://www.doxygen.org/index.html"><img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.7.1</small></address>
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