version 1.12, 2012/08/08 08:25:39
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version 1.21, 2013/08/26 18:48:23
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Line 12 terms:
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Line 12 terms:
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All of the documentation and software included in the ELWIX and AITNET |
All of the documentation and software included in the ELWIX and AITNET |
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
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Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 | Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
by Michael Pounov <misho@elwix.org>. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
Redistribution and use in source and binary forms, with or without |
Line 46 SUCH DAMAGE.
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Line 46 SUCH DAMAGE.
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#include "global.h" |
#include "global.h" |
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#pragma GCC visibility push(hidden) | /* |
| * sched_useTask() - Get and init new task |
inline sched_task_t * | * |
_sched_useTask(sched_root_task_t * __restrict root) | * @root = root task |
| * return: NULL error or !=NULL prepared task |
| */ |
| sched_task_t * |
| sched_useTask(sched_root_task_t * __restrict root) |
{ |
{ |
sched_task_t *task, *tmp; |
sched_task_t *task, *tmp; |
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TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) { |
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if (!TASK_ISLOCKED(task)) { |
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#ifdef HAVE_LIBPTHREAD |
#ifdef HAVE_LIBPTHREAD |
pthread_mutex_lock(&root->root_mtx[taskUNUSE]); | pthread_mutex_lock(&root->root_mtx[taskUNUSE]); |
#endif |
#endif |
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TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) { |
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if (!TASK_ISLOCKED(task)) { |
TAILQ_REMOVE(&root->root_unuse, task, task_node); |
TAILQ_REMOVE(&root->root_unuse, task, task_node); |
#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_unlock(&root->root_mtx[taskUNUSE]); |
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#endif |
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break; |
break; |
} |
} |
} |
} |
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#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_unlock(&root->root_mtx[taskUNUSE]); |
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#endif |
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if (!task) { |
if (!task) { |
task = malloc(sizeof(sched_task_t)); |
task = malloc(sizeof(sched_task_t)); |
Line 79 _sched_useTask(sched_root_task_t * __restrict root)
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Line 83 _sched_useTask(sched_root_task_t * __restrict root)
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return task; |
return task; |
} |
} |
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inline sched_task_t * | /* |
_sched_unuseTask(sched_task_t * __restrict task) | * sched_unuseTask() - Unlock and put task to unuse queue |
| * |
| * @task = task |
| * return: always is NULL |
| */ |
| sched_task_t * |
| sched_unuseTask(sched_task_t * __restrict task) |
{ |
{ |
TASK_UNLOCK(task); |
TASK_UNLOCK(task); |
TASK_TYPE(task) = taskUNUSE; |
TASK_TYPE(task) = taskUNUSE; |
Line 96 _sched_unuseTask(sched_task_t * __restrict task)
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Line 106 _sched_unuseTask(sched_task_t * __restrict task)
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return task; |
return task; |
} |
} |
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#pragma GCC visibility push(hidden) |
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#ifdef HAVE_LIBPTHREAD |
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static void |
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_sched_threadCleanup(sched_task_t *t) |
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{ |
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if (!t || !TASK_ROOT(t)) |
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return; |
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pthread_mutex_lock(&TASK_ROOT(t)->root_mtx[taskTHREAD]); |
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TAILQ_REMOVE(&TASK_ROOT(t)->root_thread, t, task_node); |
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pthread_mutex_unlock(&TASK_ROOT(t)->root_mtx[taskTHREAD]); |
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sched_unuseTask(t); |
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} |
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void * |
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_sched_threadWrapper(sched_task_t *t) |
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{ |
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void *ret = NULL; |
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pthread_cleanup_push((void (*)(void*)) _sched_threadCleanup, t); |
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if (!t || !TASK_ROOT(t)) |
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pthread_exit(ret); |
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pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
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/* |
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pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); |
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*/ |
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/* notify parent, thread is ready for execution */ |
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pthread_testcancel(); |
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ret = TASK_FUNC(t)(t); |
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pthread_cleanup_pop(42); |
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TASK_ROOT(t)->root_ret = ret; |
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pthread_exit(ret); |
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} |
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#endif |
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#if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) |
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void * |
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_sched_rtcWrapper(sched_task_t *t) |
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{ |
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sched_task_func_t func; |
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sched_task_t *task; |
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sched_root_task_t *r; |
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if (!t || !TASK_ROOT(t) || !TASK_DATA(t)) |
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return NULL; |
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else { |
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r = TASK_ROOT(t); |
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task = (sched_task_t*) TASK_DATA(t); |
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func = TASK_FUNC(task); |
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} |
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#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_lock(&r->root_mtx[taskRTC]); |
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#endif |
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TAILQ_REMOVE(&r->root_rtc, task, task_node); |
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#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_unlock(&r->root_mtx[taskRTC]); |
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#endif |
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sched_unuseTask(task); |
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timer_delete((timer_t) TASK_DATLEN(t)); |
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return func(task); |
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} |
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#endif |
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#pragma GCC visibility pop |
#pragma GCC visibility pop |
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/* |
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* sched_taskExit() - Exit routine for scheduler task, explicit required for thread tasks |
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* |
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* @task = current task |
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* @retcode = return code |
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* return: return code |
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*/ |
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void * |
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sched_taskExit(sched_task_t *task, intptr_t retcode) |
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{ |
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if (!task || !TASK_ROOT(task)) |
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return (void*) -1; |
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if (TASK_ROOT(task)->root_hooks.hook_exec.exit) |
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TASK_ROOT(task)->root_hooks.hook_exec.exit(task, (void*) retcode); |
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TASK_ROOT(task)->root_ret = (void*) retcode; |
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return (void*) retcode; |
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} |
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/* |
/* |
* schedRead() - Add READ I/O task to scheduler queue |
* schedRead() - Add READ I/O task to scheduler queue |
* |
* |
Line 121 schedRead(sched_root_task_t * __restrict root, sched_t
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Line 222 schedRead(sched_root_task_t * __restrict root, sched_t
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 148 schedRead(sched_root_task_t * __restrict root, sched_t
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Line 249 schedRead(sched_root_task_t * __restrict root, sched_t
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pthread_mutex_unlock(&root->root_mtx[taskREAD]); |
pthread_mutex_unlock(&root->root_mtx[taskREAD]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 175 schedWrite(sched_root_task_t * __restrict root, sched_
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Line 276 schedWrite(sched_root_task_t * __restrict root, sched_
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 202 schedWrite(sched_root_task_t * __restrict root, sched_
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Line 303 schedWrite(sched_root_task_t * __restrict root, sched_
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pthread_mutex_unlock(&root->root_mtx[taskWRITE]); |
pthread_mutex_unlock(&root->root_mtx[taskWRITE]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 229 schedNode(sched_root_task_t * __restrict root, sched_t
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Line 330 schedNode(sched_root_task_t * __restrict root, sched_t
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 256 schedNode(sched_root_task_t * __restrict root, sched_t
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Line 357 schedNode(sched_root_task_t * __restrict root, sched_t
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pthread_mutex_unlock(&root->root_mtx[taskNODE]); |
pthread_mutex_unlock(&root->root_mtx[taskNODE]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 283 schedProc(sched_root_task_t * __restrict root, sched_t
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Line 384 schedProc(sched_root_task_t * __restrict root, sched_t
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 310 schedProc(sched_root_task_t * __restrict root, sched_t
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Line 411 schedProc(sched_root_task_t * __restrict root, sched_t
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pthread_mutex_unlock(&root->root_mtx[taskPROC]); |
pthread_mutex_unlock(&root->root_mtx[taskPROC]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 341 schedUser(sched_root_task_t * __restrict root, sched_t
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Line 442 schedUser(sched_root_task_t * __restrict root, sched_t
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 368 schedUser(sched_root_task_t * __restrict root, sched_t
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Line 469 schedUser(sched_root_task_t * __restrict root, sched_t
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pthread_mutex_unlock(&root->root_mtx[taskUSER]); |
pthread_mutex_unlock(&root->root_mtx[taskUSER]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
#endif |
#endif |
Line 396 schedSignal(sched_root_task_t * __restrict root, sched
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Line 497 schedSignal(sched_root_task_t * __restrict root, sched
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 423 schedSignal(sched_root_task_t * __restrict root, sched
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Line 524 schedSignal(sched_root_task_t * __restrict root, sched
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pthread_mutex_unlock(&root->root_mtx[taskSIGNAL]); |
pthread_mutex_unlock(&root->root_mtx[taskSIGNAL]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 435 schedSignal(sched_root_task_t * __restrict root, sched
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Line 536 schedSignal(sched_root_task_t * __restrict root, sched
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* @func = task execution function |
* @func = task execution function |
* @arg = 1st func argument |
* @arg = 1st func argument |
* @ts = timeout argument structure, minimum alarm timer resolution is 1msec! |
* @ts = timeout argument structure, minimum alarm timer resolution is 1msec! |
* @opt_data = Optional data | * @opt_data = Alarm timer ID |
* @opt_dlen = Optional data length |
* @opt_dlen = Optional data length |
* return: NULL error or !=NULL new queued task |
* return: NULL error or !=NULL new queued task |
*/ |
*/ |
Line 450 schedAlarm(sched_root_task_t * __restrict root, sched_
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Line 551 schedAlarm(sched_root_task_t * __restrict root, sched_
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 477 schedAlarm(sched_root_task_t * __restrict root, sched_
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Line 578 schedAlarm(sched_root_task_t * __restrict root, sched_
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pthread_mutex_unlock(&root->root_mtx[taskALARM]); |
pthread_mutex_unlock(&root->root_mtx[taskALARM]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 505 schedAIO(sched_root_task_t * __restrict root, sched_ta
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Line 606 schedAIO(sched_root_task_t * __restrict root, sched_ta
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 532 schedAIO(sched_root_task_t * __restrict root, sched_ta
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Line 633 schedAIO(sched_root_task_t * __restrict root, sched_ta
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pthread_mutex_unlock(&root->root_mtx[taskAIO]); |
pthread_mutex_unlock(&root->root_mtx[taskAIO]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 549 schedAIO(sched_root_task_t * __restrict root, sched_ta
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Line 650 schedAIO(sched_root_task_t * __restrict root, sched_ta
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* @offset = Offset from start of file, if =-1 from current position |
* @offset = Offset from start of file, if =-1 from current position |
* return: NULL error or !=NULL new queued task |
* return: NULL error or !=NULL new queued task |
*/ |
*/ |
inline sched_task_t * | sched_task_t * |
schedAIORead(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
schedAIORead(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
void *buffer, size_t buflen, off_t offset) |
void *buffer, size_t buflen, off_t offset) |
{ |
{ |
Line 603 schedAIORead(sched_root_task_t * __restrict root, sche
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Line 704 schedAIORead(sched_root_task_t * __restrict root, sche
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* @offset = Offset from start of file, if =-1 from current position |
* @offset = Offset from start of file, if =-1 from current position |
* return: NULL error or !=NULL new queued task |
* return: NULL error or !=NULL new queued task |
*/ |
*/ |
inline sched_task_t * | sched_task_t * |
schedAIOWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
schedAIOWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
void *buffer, size_t buflen, off_t offset) |
void *buffer, size_t buflen, off_t offset) |
{ |
{ |
Line 668 schedLIO(sched_root_task_t * __restrict root, sched_ta
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Line 769 schedLIO(sched_root_task_t * __restrict root, sched_ta
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 695 schedLIO(sched_root_task_t * __restrict root, sched_ta
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Line 796 schedLIO(sched_root_task_t * __restrict root, sched_ta
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pthread_mutex_unlock(&root->root_mtx[taskLIO]); |
pthread_mutex_unlock(&root->root_mtx[taskLIO]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 784 schedLIORead(sched_root_task_t * __restrict root, sche
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Line 885 schedLIORead(sched_root_task_t * __restrict root, sche
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* @offset = Offset from start of file, if =-1 from current position |
* @offset = Offset from start of file, if =-1 from current position |
* return: NULL error or !=NULL new queued task |
* return: NULL error or !=NULL new queued task |
*/ |
*/ |
inline sched_task_t * | sched_task_t * |
schedLIOWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
schedLIOWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, |
struct iovec *bufs, size_t nbufs, off_t offset) |
struct iovec *bufs, size_t nbufs, off_t offset) |
{ |
{ |
Line 869 schedTimer(sched_root_task_t * __restrict root, sched_
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Line 970 schedTimer(sched_root_task_t * __restrict root, sched_
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 918 schedTimer(sched_root_task_t * __restrict root, sched_
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Line 1019 schedTimer(sched_root_task_t * __restrict root, sched_
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pthread_mutex_unlock(&root->root_mtx[taskTIMER]); |
pthread_mutex_unlock(&root->root_mtx[taskTIMER]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 945 schedEvent(sched_root_task_t * __restrict root, sched_
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Line 1046 schedEvent(sched_root_task_t * __restrict root, sched_
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 972 schedEvent(sched_root_task_t * __restrict root, sched_
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Line 1073 schedEvent(sched_root_task_t * __restrict root, sched_
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pthread_mutex_unlock(&root->root_mtx[taskEVENT]); |
pthread_mutex_unlock(&root->root_mtx[taskEVENT]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 1000 schedTask(sched_root_task_t * __restrict root, sched_t
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Line 1101 schedTask(sched_root_task_t * __restrict root, sched_t
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 1033 schedTask(sched_root_task_t * __restrict root, sched_t
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Line 1134 schedTask(sched_root_task_t * __restrict root, sched_t
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pthread_mutex_unlock(&root->root_mtx[taskTASK]); |
pthread_mutex_unlock(&root->root_mtx[taskTASK]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 1060 schedSuspend(sched_root_task_t * __restrict root, sche
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Line 1161 schedSuspend(sched_root_task_t * __restrict root, sche
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 1087 schedSuspend(sched_root_task_t * __restrict root, sche
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Line 1188 schedSuspend(sched_root_task_t * __restrict root, sche
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pthread_mutex_unlock(&root->root_mtx[taskSUSPEND]); |
pthread_mutex_unlock(&root->root_mtx[taskSUSPEND]); |
#endif |
#endif |
} else |
} else |
task = _sched_unuseTask(task); | task = sched_unuseTask(task); |
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return task; |
return task; |
} |
} |
Line 1114 schedCallOnce(sched_root_task_t * __restrict root, sch
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Line 1215 schedCallOnce(sched_root_task_t * __restrict root, sch
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return NULL; |
return NULL; |
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/* get new task */ |
/* get new task */ |
if (!(task = _sched_useTask(root))) | if (!(task = sched_useTask(root))) |
return NULL; |
return NULL; |
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task->task_func = func; |
task->task_func = func; |
Line 1129 schedCallOnce(sched_root_task_t * __restrict root, sch
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Line 1230 schedCallOnce(sched_root_task_t * __restrict root, sch
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|
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ret = schedCall(task); |
ret = schedCall(task); |
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_sched_unuseTask(task); | sched_unuseTask(task); |
return ret; |
return ret; |
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} |
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/* |
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* schedThread() - Add thread task to scheduler queue |
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* |
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* @root = root task |
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* @func = task execution function |
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* @arg = 1st func argument |
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* @ss = stack size |
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* @opt_data = Optional data |
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* @opt_dlen = Optional data length |
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* return: NULL error or !=NULL new queued task |
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*/ |
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sched_task_t * |
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schedThread(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, |
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size_t ss, void *opt_data, size_t opt_dlen) |
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{ |
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#ifndef HAVE_LIBPTHREAD |
|
sched_SetErr(ENOTSUP, "Not supported thread tasks"); |
|
return NULL; |
|
#endif |
|
sched_task_t *task; |
|
pthread_attr_t attr; |
|
|
|
if (!root || !func) |
|
return NULL; |
|
|
|
/* get new task */ |
|
if (!(task = sched_useTask(root))) { |
|
|
|
return NULL; |
|
} |
|
|
|
task->task_func = func; |
|
TASK_TYPE(task) = taskTHREAD; |
|
TASK_ROOT(task) = root; |
|
|
|
TASK_ARG(task) = arg; |
|
|
|
TASK_DATA(task) = opt_data; |
|
TASK_DATLEN(task) = opt_dlen; |
|
|
|
pthread_attr_init(&attr); |
|
pthread_attr_setdetachstate(&attr, PTHREAD_DETACHED); |
|
if (ss && (errno = pthread_attr_setstacksize(&attr, ss))) { |
|
LOGERR; |
|
pthread_attr_destroy(&attr); |
|
return sched_unuseTask(task); |
|
} |
|
if ((errno = pthread_attr_getstacksize(&attr, &ss))) { |
|
LOGERR; |
|
pthread_attr_destroy(&attr); |
|
return sched_unuseTask(task); |
|
} else |
|
TASK_FLAG(task) = ss; |
|
if ((errno = pthread_attr_setguardsize(&attr, ss))) { |
|
LOGERR; |
|
pthread_attr_destroy(&attr); |
|
return sched_unuseTask(task); |
|
} |
|
#ifdef SCHED_RR |
|
pthread_attr_setschedpolicy(&attr, SCHED_RR); |
|
#else |
|
pthread_attr_setschedpolicy(&attr, SCHED_OTHER); |
|
#endif |
|
|
|
pthread_mutex_lock(&root->root_mtx[taskTHREAD]); |
|
TAILQ_INSERT_TAIL(&root->root_thread, TASK_ID(task), task_node); |
|
pthread_mutex_unlock(&root->root_mtx[taskTHREAD]); |
|
|
|
if (root->root_hooks.hook_add.thread) |
|
if (root->root_hooks.hook_add.thread(task, &attr)) { |
|
schedCancel(task); |
|
task = NULL; |
|
} |
|
pthread_attr_destroy(&attr); |
|
return task; |
|
} |
|
|
|
/* |
|
* schedRTC() - Add RTC task to scheduler queue |
|
* |
|
* @root = root task |
|
* @func = task execution function |
|
* @arg = 1st func argument |
|
* @ts = timeout argument structure, minimum alarm timer resolution is 1msec! |
|
* @opt_data = Optional RTC ID |
|
* @opt_dlen = Optional data length |
|
* return: NULL error or !=NULL new queued task |
|
*/ |
|
sched_task_t * |
|
schedRTC(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct timespec ts, |
|
void *opt_data, size_t opt_dlen) |
|
{ |
|
#if defined(HAVE_TIMER_CREATE) && defined(HAVE_TIMER_SETTIME) |
|
sched_task_t *task; |
|
void *ptr; |
|
|
|
if (!root || !func) |
|
return NULL; |
|
|
|
/* get new task */ |
|
if (!(task = sched_useTask(root))) |
|
return NULL; |
|
|
|
task->task_func = func; |
|
TASK_TYPE(task) = taskRTC; |
|
TASK_ROOT(task) = root; |
|
|
|
TASK_ARG(task) = arg; |
|
TASK_TS(task) = ts; |
|
|
|
TASK_DATA(task) = opt_data; |
|
TASK_DATLEN(task) = opt_dlen; |
|
|
|
if (root->root_hooks.hook_add.rtc) |
|
ptr = root->root_hooks.hook_add.rtc(task, NULL); |
|
else |
|
ptr = NULL; |
|
|
|
if (!ptr) { |
|
#ifdef HAVE_LIBPTHREAD |
|
pthread_mutex_lock(&root->root_mtx[taskRTC]); |
|
#endif |
|
TAILQ_INSERT_TAIL(&root->root_rtc, TASK_ID(task), task_node); |
|
#ifdef HAVE_LIBPTHREAD |
|
pthread_mutex_unlock(&root->root_mtx[taskRTC]); |
|
#endif |
|
} else |
|
task = sched_unuseTask(task); |
|
|
|
return task; |
|
#else |
|
sched_SetErr(ENOTSUP, "Not supported realtime clock extensions"); |
|
return NULL; |
|
#endif |
} |
} |