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< h1 > chschd.h< / h1 > < / div >
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< a href = "chschd_8h.html" > Go to the documentation of this file.< / a > < div class = "fragment" > < pre class = "fragment" > < a name = "l00001" > < / a > 00001 < span class = "comment" > /*< / span >
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< a name = "l00002" > < / a > 00002 < span class = "comment" > ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.< / span >
< a name = "l00003" > < / a > 00003 < span class = "comment" > < / span >
< a name = "l00004" > < / a > 00004 < span class = "comment" > This file is part of ChibiOS/RT.< / span >
< a name = "l00005" > < / a > 00005 < span class = "comment" > < / span >
< a name = "l00006" > < / a > 00006 < span class = "comment" > ChibiOS/RT is free software; you can redistribute it and/or modify< / span >
< a name = "l00007" > < / a > 00007 < span class = "comment" > it under the terms of the GNU General Public License as published by< / span >
< a name = "l00008" > < / a > 00008 < span class = "comment" > the Free Software Foundation; either version 3 of the License, or< / span >
< a name = "l00009" > < / a > 00009 < span class = "comment" > (at your option) any later version.< / span >
< a name = "l00010" > < / a > 00010 < span class = "comment" > < / span >
< a name = "l00011" > < / a > 00011 < span class = "comment" > ChibiOS/RT is distributed in the hope that it will be useful,< / span >
< a name = "l00012" > < / a > 00012 < span class = "comment" > but WITHOUT ANY WARRANTY; without even the implied warranty of< / span >
< a name = "l00013" > < / a > 00013 < span class = "comment" > MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the< / span >
< a name = "l00014" > < / a > 00014 < span class = "comment" > GNU General Public License for more details.< / span >
< a name = "l00015" > < / a > 00015 < span class = "comment" > < / span >
< a name = "l00016" > < / a > 00016 < span class = "comment" > You should have received a copy of the GNU General Public License< / span >
< a name = "l00017" > < / a > 00017 < span class = "comment" > along with this program. If not, see < http://www.gnu.org/licenses/> .< / span >
< a name = "l00018" > < / a > 00018 < span class = "comment" > < / span >
< a name = "l00019" > < / a > 00019 < span class = "comment" > ---< / span >
< a name = "l00020" > < / a > 00020 < span class = "comment" > < / span >
< a name = "l00021" > < / a > 00021 < span class = "comment" > A special exception to the GPL can be applied should you wish to distribute< / span >
< a name = "l00022" > < / a > 00022 < span class = "comment" > a combined work that includes ChibiOS/RT, without being obliged to provide< / span >
< a name = "l00023" > < / a > 00023 < span class = "comment" > the source code for any proprietary components. See the file exception.txt< / span >
< a name = "l00024" > < / a > 00024 < span class = "comment" > for full details of how and when the exception can be applied.< / span >
< a name = "l00025" > < / a > 00025 < span class = "comment" > */< / span >
< a name = "l00026" > < / a > 00026 < span class = "comment" > < / span >
< a name = "l00027" > < / a > 00027 < span class = "comment" > /**< / span >
< a name = "l00028" > < / a > 00028 < span class = "comment" > * @file chschd.h< / span >
< a name = "l00029" > < / a > 00029 < span class = "comment" > * @brief Scheduler macros and structures.< / span >
< a name = "l00030" > < / a > 00030 < span class = "comment" > *< / span >
< a name = "l00031" > < / a > 00031 < span class = "comment" > * @addtogroup scheduler< / span >
< a name = "l00032" > < / a > 00032 < span class = "comment" > * @{< / span >
< a name = "l00033" > < / a > 00033 < span class = "comment" > */< / span >
< a name = "l00034" > < / a > 00034
< a name = "l00035" > < / a > 00035 < span class = "preprocessor" > #ifndef _CHSCHD_H_< / span >
< a name = "l00036" > < / a > 00036 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define _CHSCHD_H_< / span >
< a name = "l00037" > < / a > 00037 < span class = "preprocessor" > < / span > < span class = "comment" > < / span >
< a name = "l00038" > < / a > 00038 < span class = "comment" > /** @brief Default thread wakeup low level message.*/< / span >
< a name = "l00039" > < / a > < a class = "code" href = "group__scheduler.html#gae1c86078318e11c2fa57ee3c2ec69f61" > 00039< / a > < span class = "preprocessor" > #define RDY_OK 0< / span >
< a name = "l00040" > < / a > 00040 < span class = "preprocessor" > < / span > < span class = "comment" > /** @brief Low level message sent to a thread awakened by a timeout.*/< / span >
< a name = "l00041" > < / a > < a class = "code" href = "group__scheduler.html#gaf28d5427eeeb8f737cc7db495157780c" > 00041< / a > < span class = "preprocessor" > #define RDY_TIMEOUT -1< / span >
< a name = "l00042" > < / a > 00042 < span class = "preprocessor" > < / span > < span class = "comment" > /** @brief Low level message sent to a thread awakened by a reset operation.*/< / span >
< a name = "l00043" > < / a > < a class = "code" href = "group__scheduler.html#ga3a606c833796229f23adcb3f6c404a81" > 00043< / a > < span class = "preprocessor" > #define RDY_RESET -2< / span >
< a name = "l00044" > < / a > 00044 < span class = "preprocessor" > < / span >
< a name = "l00045" > < / a > < a class = "code" href = "group__scheduler.html#gaeb0aae94eb04f9809571cdab39679651" > 00045< / a > < span class = "preprocessor" > #define NOPRIO 0 < / span > < span class = "comment" > /**< @brief Ready list header priority. */< / span >
< a name = "l00046" > < / a > < a class = "code" href = "group__scheduler.html#gacfbd3f4098069329a23d7ec54a7fb8ab" > 00046< / a > < span class = "preprocessor" > #define IDLEPRIO 1 < / span > < span class = "comment" > /**< @brief Idle thread priority. */< / span >
< a name = "l00047" > < / a > < a class = "code" href = "group__scheduler.html#ga38aff897bc7950077d5985b3d4bcf4d5" > 00047< / a > < span class = "preprocessor" > #define LOWPRIO 2 < / span > < span class = "comment" > /**< @brief Lowest user priority. */< / span >
< a name = "l00048" > < / a > < a class = "code" href = "group__scheduler.html#gad6a6b28f0c1cf8e0da714ef771fb90a0" > 00048< / a > < span class = "preprocessor" > #define NORMALPRIO 64 < / span > < span class = "comment" > /**< @brief Normal user priority. */< / span >
< a name = "l00049" > < / a > < a class = "code" href = "group__scheduler.html#ga0621c307e30868052b802fbc821297e8" > 00049< / a > < span class = "preprocessor" > #define HIGHPRIO 127 < / span > < span class = "comment" > /**< @brief Highest user priority. */< / span >
< a name = "l00050" > < / a > < a class = "code" href = "group__scheduler.html#gadb5ffd31ad382d3b83488e6b6780f03f" > 00050< / a > < span class = "preprocessor" > #define ABSPRIO 255 < / span > < span class = "comment" > /**< @brief Greatest possible priority. */< / span >
< a name = "l00051" > < / a > 00051 < span class = "comment" > < / span >
< a name = "l00052" > < / a > 00052 < span class = "comment" > /**< / span >
< a name = "l00053" > < / a > 00053 < span class = "comment" > * @brief Zero time specification for some syscalls with a timeout< / span >
< a name = "l00054" > < / a > 00054 < span class = "comment" > * specification.< / span >
< a name = "l00055" > < / a > 00055 < span class = "comment" > * @note Not all functions accept @p TIME_IMMEDIATE as timeout parameter,< / span >
< a name = "l00056" > < / a > 00056 < span class = "comment" > * see the specific function documentation.< / span >
< a name = "l00057" > < / a > 00057 < span class = "comment" > */< / span >
< a name = "l00058" > < / a > < a class = "code" href = "group__scheduler.html#gad1ac15e9e5fc17810a94a779257f3d29" > 00058< / a > < span class = "preprocessor" > #define TIME_IMMEDIATE ((systime_t)-1)< / span >
< a name = "l00059" > < / a > 00059 < span class = "preprocessor" > < / span > < span class = "comment" > < / span >
< a name = "l00060" > < / a > 00060 < span class = "comment" > /**< / span >
< a name = "l00061" > < / a > 00061 < span class = "comment" > * @brief Infinite time specification for all the syscalls with a timeout< / span >
< a name = "l00062" > < / a > 00062 < span class = "comment" > * specification.< / span >
< a name = "l00063" > < / a > 00063 < span class = "comment" > */< / span >
< a name = "l00064" > < / a > < a class = "code" href = "group__scheduler.html#gae1568cf3090c973c3bc47f86ae2f5afb" > 00064< / a > < span class = "preprocessor" > #define TIME_INFINITE ((systime_t)0)< / span >
< a name = "l00065" > < / a > 00065 < span class = "preprocessor" > < / span > < span class = "comment" > < / span >
< a name = "l00066" > < / a > 00066 < span class = "comment" > /**< / span >
< a name = "l00067" > < / a > 00067 < span class = "comment" > * @brief Returns the priority of the first thread on the given ready list.< / span >
< a name = "l00068" > < / a > 00068 < span class = "comment" > */< / span >
< a name = "l00069" > < / a > < a class = "code" href = "group__scheduler.html#gaa3e744fe83212f48d7373b764b9abb2d" > 00069< / a > < span class = "preprocessor" > #define firstprio(rlp) ((rlp)-> p_next-> p_prio)< / span >
< a name = "l00070" > < / a > 00070 < span class = "preprocessor" > < / span > < span class = "comment" > < / span >
< a name = "l00071" > < / a > 00071 < span class = "comment" > /**< / span >
< a name = "l00072" > < / a > 00072 < span class = "comment" > * @extends ThreadsQueue< / span >
< a name = "l00073" > < / a > 00073 < span class = "comment" > *< / span >
< a name = "l00074" > < / a > 00074 < span class = "comment" > * @brief Ready list header.< / span >
< a name = "l00075" > < / a > 00075 < span class = "comment" > */< / span >
< a name = "l00076" > < / a > 00076 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_READYLIST_STRUCT) || defined(__DOXYGEN__)< / span >
< a name = "l00077" > < / a > < a class = "code" href = "struct_ready_list.html" > 00077< / a > < span class = "preprocessor" > < / span > < span class = "keyword" > typedef< / span > < span class = "keyword" > struct < / span > {
< a name = "l00078" > < / a > < a class = "code" href = "struct_ready_list.html#a7577e36ac8500b0364cd3d4157e260d1" > 00078< / a > < a class = "code" href = "struct_threads_queue.html" title = "Generic threads bidirectional linked list header and element." > ThreadsQueue< / a > r_queue; < span class = "comment" > /**< @brief Threads queue. */< / span >
< a name = "l00079" > < / a > < a class = "code" href = "struct_ready_list.html#aee33d97bf6d798dfd2528db725452bcc" > 00079< / a > < a class = "code" href = "group__types.html#ga5f2488ba73e5969cbc0f7033735374ee" title = "Priority, use the fastest unsigned type." > tprio_t< / a > r_prio; < span class = "comment" > /**< @brief This field must be< / span >
< a name = "l00080" > < / a > 00080 < span class = "comment" > initialized to zero. */< / span >
< a name = "l00081" > < / a > < a class = "code" href = "struct_ready_list.html#a57091df965fd1cf2b73c2b02aac54e2b" > 00081< / a > < span class = "keyword" > struct < / span > < a class = "code" href = "structcontext.html" title = "Platform dependent part of the Thread structure." > context< / a > r_ctx; < span class = "comment" > /**< @brief Not used, present because< / span >
< a name = "l00082" > < / a > 00082 < span class = "comment" > offsets. */< / span >
< a name = "l00083" > < / a > 00083 < span class = "preprocessor" > #if CH_USE_REGISTRY< / span >
< a name = "l00084" > < / a > < a class = "code" href = "struct_ready_list.html#adaf2a3d936298fdee21396af9cf640c9" > 00084< / a > < span class = "preprocessor" > < / span > < a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *r_newer; < span class = "comment" > /**< @brief Newer registry element. */< / span >
< a name = "l00085" > < / a > < a class = "code" href = "struct_ready_list.html#a5b122d594ffb1f9e400ef9ee69b7aa12" > 00085< / a > < a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *r_older; < span class = "comment" > /**< @brief Older registry element. */< / span >
< a name = "l00086" > < / a > 00086 < span class = "preprocessor" > #endif< / span >
< a name = "l00087" > < / a > 00087 < span class = "preprocessor" > < / span > < span class = "comment" > /* End of the fields shared with the Thread structure.*/< / span >
< a name = "l00088" > < / a > 00088 < span class = "preprocessor" > #if CH_TIME_QUANTUM > 0< / span >
< a name = "l00089" > < / a > 00089 < span class = "preprocessor" > < / span > < a class = "code" href = "group__types.html#ga090b3bab5602157ebf706a44041dc05e" title = "Counter, recommended fastest signed." > cnt_t< / a > r_preempt; < span class = "comment" > /**< @brief Round robin counter. */< / span >
< a name = "l00090" > < / a > 00090 < span class = "preprocessor" > #endif< / span >
< a name = "l00091" > < / a > 00091 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #ifndef CH_CURRP_REGISTER_CACHE< / span >
< a name = "l00092" > < / a > < a class = "code" href = "struct_ready_list.html#af12f534a313a490e22e3c025701a4c42" > 00092< / a > < span class = "preprocessor" > < / span > < a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *r_current; < span class = "comment" > /**< @brief The currently running< / span >
< a name = "l00093" > < / a > 00093 < span class = "comment" > thread. */< / span >
< a name = "l00094" > < / a > 00094 < span class = "preprocessor" > #endif< / span >
< a name = "l00095" > < / a > 00095 < span class = "preprocessor" > < / span > } < a class = "code" href = "struct_ready_list.html" title = "Ready list header." > ReadyList< / a > ;
< a name = "l00096" > < / a > 00096 < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_READYLIST_STRUCT) */< / span >
< a name = "l00097" > < / a > 00097
< a name = "l00098" > < / a > 00098 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_RLIST_EXT) & & !defined(__DOXYGEN__)< / span >
< a name = "l00099" > < / a > 00099 < span class = "preprocessor" > < / span > < span class = "keyword" > extern< / span > < a class = "code" href = "struct_ready_list.html" title = "Ready list header." > ReadyList< / a > < a class = "code" href = "group__scheduler.html#ga752cd9dbf0dc458b8b532182836ca38d" title = "Ready list header." > rlist< / a > ;
< a name = "l00100" > < / a > 00100 < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_RLIST_EXT) */< / span >
< a name = "l00101" > < / a > 00101 < span class = "comment" > < / span >
< a name = "l00102" > < / a > 00102 < span class = "comment" > /**< / span >
< a name = "l00103" > < / a > 00103 < span class = "comment" > * @brief Current thread pointer access macro.< / span >
< a name = "l00104" > < / a > 00104 < span class = "comment" > * @note This macro is not meant to be used in the application code but< / span >
< a name = "l00105" > < / a > 00105 < span class = "comment" > * only from within the kernel, use the @p chThdSelf() API instead.< / span >
< a name = "l00106" > < / a > 00106 < span class = "comment" > * @note It is forbidden to use this macro in order to change the pointer< / span >
< a name = "l00107" > < / a > 00107 < span class = "comment" > * (currp = something), use @p setcurrp() instead.< / span >
< a name = "l00108" > < / a > 00108 < span class = "comment" > */< / span >
< a name = "l00109" > < / a > 00109 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_CURRP) || defined(__DOXYGEN__)< / span >
< a name = "l00110" > < / a > 00110 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(CH_CURRP_REGISTER_CACHE) || defined(__DOXYGEN__)< / span >
< a name = "l00111" > < / a > < a class = "code" href = "group__scheduler.html#ga1a5fddde56420e8accd0c09c1abb32a7" > 00111< / a > < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define currp rlist.r_current< / span >
< a name = "l00112" > < / a > 00112 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #else < / span > < span class = "comment" > /* defined(CH_CURRP_REGISTER_CACHE) */< / span >
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< a name = "l00113" > < / a > 00113 < span class = "keyword" > register< / span > < a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *< a class = "code" href = "group__scheduler.html#ga1a5fddde56420e8accd0c09c1abb32a7" title = "Current thread pointer access macro." > currp< / a > < span class = "keyword" > asm< / span > (CH_CURRP_REGISTER_CACHE);
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< a name = "l00114" > < / a > 00114 < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* defined(CH_CURRP_REGISTER_CACHE) */< / span >
< a name = "l00115" > < / a > 00115 < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_CURRP) */< / span >
< a name = "l00116" > < / a > 00116 < span class = "comment" > < / span >
< a name = "l00117" > < / a > 00117 < span class = "comment" > /**< / span >
< a name = "l00118" > < / a > 00118 < span class = "comment" > * @brief Current thread pointer change macro.< / span >
< a name = "l00119" > < / a > 00119 < span class = "comment" > * @note This macro is not meant to be used in the application code but< / span >
< a name = "l00120" > < / a > 00120 < span class = "comment" > * only from within the kernel.< / span >
< a name = "l00121" > < / a > 00121 < span class = "comment" > */< / span >
< a name = "l00122" > < / a > 00122 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_SETCURRP) || defined(__DOXYGEN__)< / span >
< a name = "l00123" > < / a > < a class = "code" href = "group__scheduler.html#ga226bd98a30b2db31dbb1ecc572c18da2" > 00123< / a > < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define setcurrp(tp) (currp = (tp))< / span >
< a name = "l00124" > < / a > 00124 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_SETCURRP) */< / span >
< a name = "l00125" > < / a > 00125
< a name = "l00126" > < / a > 00126 < span class = "comment" > /*< / span >
< a name = "l00127" > < / a > 00127 < span class = "comment" > * Scheduler APIs.< / span >
< a name = "l00128" > < / a > 00128 < span class = "comment" > */< / span >
< a name = "l00129" > < / a > 00129 < span class = "preprocessor" > #ifdef __cplusplus< / span >
< a name = "l00130" > < / a > 00130 < span class = "preprocessor" > < / span > < span class = "keyword" > extern< / span > < span class = "stringliteral" > " C" < / span > {
< a name = "l00131" > < / a > 00131 < span class = "preprocessor" > #endif< / span >
< a name = "l00132" > < / a > 00132 < span class = "preprocessor" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "group__scheduler.html#gab258cc2856e5f6bb125907cc23358fbd" title = "Scheduler initialization." > scheduler_init< / a > (< span class = "keywordtype" > void< / span > );
< a name = "l00133" > < / a > 00133 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_READYI)< / span >
< a name = "l00134" > < / a > 00134 < span class = "preprocessor" > < / span > < a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *< a class = "code" href = "group__scheduler.html#ga535d58cfb3436c8d4e4586c31c062298" title = "Inserts a thread in the Ready List." > chSchReadyI< / a > (< a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *tp);
< a name = "l00135" > < / a > 00135 < span class = "preprocessor" > #endif< / span >
< a name = "l00136" > < / a > 00136 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_GOSLEEPS)< / span >
< a name = "l00137" > < / a > 00137 < span class = "preprocessor" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "group__scheduler.html#ga97c1c514b755a1e71caf2f19c1ccf986" title = "Puts the current thread to sleep into the specified state." > chSchGoSleepS< / a > (< a class = "code" href = "group__types.html#ga52d7ed152360a74632afa37bbeeca7ca" title = "Thread state, uint8_t is ok." > tstate_t< / a > newstate);
< a name = "l00138" > < / a > 00138 < span class = "preprocessor" > #endif< / span >
< a name = "l00139" > < / a > 00139 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_GOSLEEPTIMEOUTS)< / span >
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< a name = "l00140" > < / a > 00140 < span class = "preprocessor" > < / span > < a class = "code" href = "group__types.html#ga35bcb0c321cd7bc45bf1a11fa17ebdd3" title = "Message, use signed pointer equivalent." > msg_t< / a > < a class = "code" href = "group__scheduler.html#ga306e564f678c1a39139639490c77e78b" title = "Puts the current thread to sleep into the specified state with timeout specification." > chSchGoSleepTimeoutS< / a > (< a class = "code" href = "group__types.html#ga52d7ed152360a74632afa37bbeeca7ca" title = "Thread state, uint8_t is ok." > tstate_t< / a > newstate, < a class = "code" href = "group__types.html#gae3e32a98d431a02106616da3071832dd" title = "System Time, recommended fastest unsigned." > systime_t< / a > time);
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< a name = "l00141" > < / a > 00141 < span class = "preprocessor" > #endif< / span >
< a name = "l00142" > < / a > 00142 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_WAKEUPS)< / span >
< a name = "l00143" > < / a > 00143 < span class = "preprocessor" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "group__scheduler.html#gae47a8819a21ef2d521124e76bfb37c95" title = "Wakes up a thread." > chSchWakeupS< / a > (< a class = "code" href = "struct_thread.html" title = "Structure representing a thread." > Thread< / a > *tp, < a class = "code" href = "group__types.html#ga35bcb0c321cd7bc45bf1a11fa17ebdd3" title = "Message, use signed pointer equivalent." > msg_t< / a > msg);
< a name = "l00144" > < / a > 00144 < span class = "preprocessor" > #endif< / span >
< a name = "l00145" > < / a > 00145 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_DORESCHEDULEI)< / span >
< a name = "l00146" > < / a > 00146 < span class = "preprocessor" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "group__scheduler.html#ga0257cf203e72a766a52059750cb97e6e" title = "Switches to the first thread on the runnable queue." > chSchDoRescheduleI< / a > (< span class = "keywordtype" > void< / span > );
< a name = "l00147" > < / a > 00147 < span class = "preprocessor" > #endif< / span >
< a name = "l00148" > < / a > 00148 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_RESCHEDULES)< / span >
< a name = "l00149" > < / a > 00149 < span class = "preprocessor" > < / span > < span class = "keywordtype" > void< / span > < a class = "code" href = "group__scheduler.html#ga4e38b4bee3d2330f6a0f1cdb7660af20" title = "Performs a reschedule if a higher priority thread is runnable." > chSchRescheduleS< / a > (< span class = "keywordtype" > void< / span > );
< a name = "l00150" > < / a > 00150 < span class = "preprocessor" > #endif< / span >
< a name = "l00151" > < / a > 00151 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_ISRESCHREQUIREDEXI)< / span >
< a name = "l00152" > < / a > 00152 < span class = "preprocessor" > < / span > < a class = "code" href = "group__types.html#ga7556af1cb61728b53228fa3af1c851de" title = "Boolean, recommended the fastest signed." > bool_t< / a > < a class = "code" href = "group__scheduler.html#ga5fa012ef9d1e920983fe2aea2695a52a" title = "Evaluates if a reschedule is required." > chSchIsRescRequiredExI< / a > (< span class = "keywordtype" > void< / span > );
< a name = "l00153" > < / a > 00153 < span class = "preprocessor" > #endif< / span >
< a name = "l00154" > < / a > 00154 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #ifdef __cplusplus< / span >
< a name = "l00155" > < / a > 00155 < span class = "preprocessor" > < / span > }
< a name = "l00156" > < / a > 00156 < span class = "preprocessor" > #endif< / span >
< a name = "l00157" > < / a > 00157 < span class = "preprocessor" > < / span > < span class = "comment" > < / span >
< a name = "l00158" > < / a > 00158 < span class = "comment" > /**< / span >
< a name = "l00159" > < / a > 00159 < span class = "comment" > * @brief Determines if the current thread must reschedule.< / span >
< a name = "l00160" > < / a > 00160 < span class = "comment" > * @details This function returns @p TRUE if there is a ready thread with< / span >
< a name = "l00161" > < / a > 00161 < span class = "comment" > * higher priority.< / span >
< a name = "l00162" > < / a > 00162 < span class = "comment" > */< / span >
< a name = "l00163" > < / a > 00163 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_ISRESCHREQUIREDI) || defined(__DOXYGEN__)< / span >
< a name = "l00164" > < / a > < a class = "code" href = "group__scheduler.html#ga146230c1fe7e6dab4bc6649f2a71444c" > 00164< / a > < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define chSchIsRescRequiredI() (firstprio(& rlist.r_queue) > currp-> p_prio)< / span >
< a name = "l00165" > < / a > 00165 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_ISRESCHREQUIREDI) */< / span >
< a name = "l00166" > < / a > 00166 < span class = "comment" > < / span >
< a name = "l00167" > < / a > 00167 < span class = "comment" > /**< / span >
< a name = "l00168" > < / a > 00168 < span class = "comment" > * @brief Determines if yielding is possible.< / span >
< a name = "l00169" > < / a > 00169 < span class = "comment" > * @details This function returns @p TRUE if there is a ready thread with< / span >
< a name = "l00170" > < / a > 00170 < span class = "comment" > * equal or higher priority.< / span >
< a name = "l00171" > < / a > 00171 < span class = "comment" > */< / span >
< a name = "l00172" > < / a > 00172 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_CANYIELDS) || defined(__DOXYGEN__)< / span >
< a name = "l00173" > < / a > < a class = "code" href = "group__scheduler.html#gac45d5a97963db4129d95645429e2dd8b" > 00173< / a > < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define chSchCanYieldS() (firstprio(& rlist.r_queue) > = currp-> p_prio)< / span >
< a name = "l00174" > < / a > 00174 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_CANYIELDS) */< / span >
< a name = "l00175" > < / a > 00175 < span class = "comment" > < / span >
< a name = "l00176" > < / a > 00176 < span class = "comment" > /**< / span >
< a name = "l00177" > < / a > 00177 < span class = "comment" > * @brief Yields the time slot.< / span >
< a name = "l00178" > < / a > 00178 < span class = "comment" > * @details Yields the CPU control to the next thread in the ready list with< / span >
< a name = "l00179" > < / a > 00179 < span class = "comment" > * equal or higher priority, if any.< / span >
< a name = "l00180" > < / a > 00180 < span class = "comment" > */< / span >
< a name = "l00181" > < / a > 00181 < span class = "preprocessor" > #if !defined(PORT_OPTIMIZED_DOYIELDS) || defined(__DOXYGEN__)< / span >
< a name = "l00182" > < / a > < a class = "code" href = "group__scheduler.html#ga8fd763c1a004a010fc13575578edefbd" > 00182< / a > < span class = "preprocessor" > < / span > < span class = "preprocessor" > #define chSchDoYieldS() { \< / span >
< a name = "l00183" > < / a > 00183 < span class = "preprocessor" > if (chSchCanYieldS()) \< / span >
< a name = "l00184" > < / a > 00184 < span class = "preprocessor" > chSchDoRescheduleI(); \< / span >
< a name = "l00185" > < / a > 00185 < span class = "preprocessor" > }< / span >
< a name = "l00186" > < / a > 00186 < span class = "preprocessor" > < / span > < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* !defined(PORT_OPTIMIZED_DOYIELDS) */< / span >
< a name = "l00187" > < / a > 00187
< a name = "l00188" > < / a > 00188 < span class = "preprocessor" > #endif < / span > < span class = "comment" > /* _CHSCHD_H_ */< / span >
< a name = "l00189" > < / a > 00189 < span class = "comment" > < / span >
< a name = "l00190" > < / a > 00190 < span class = "comment" > /** @} */< / span >
< / pre > < / div > < / div >
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< / div >
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< hr size = "1" > < address style = "text-align: right;" > < small >
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Generated on Sun Nov 28 2010 14:09:48 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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