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version 1.13.2.3, 2012/08/22 23:43:36
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version 1.16.6.3, 2013/08/15 18:40:39
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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> |
| |
|
| 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. |
| |
|
| Redistribution and use in source and binary forms, with or without |
Redistribution and use in source and binary forms, with or without |
|
Line 52 SUCH DAMAGE.
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Line 52 SUCH DAMAGE.
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| * @root = root task |
* @root = root task |
| * return: NULL error or !=NULL prepared task |
* return: NULL error or !=NULL prepared task |
| */ |
*/ |
| inline sched_task_t * | sched_task_t * |
| sched_useTask(sched_root_task_t * __restrict root) |
sched_useTask(sched_root_task_t * __restrict root) |
| { |
{ |
| sched_task_t *task, *tmp; |
sched_task_t *task, *tmp; |
| |
|
| TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) { |
|
| if (!TASK_ISLOCKED(task)) { |
|
| #ifdef HAVE_LIBPTHREAD |
#ifdef HAVE_LIBPTHREAD |
| pthread_mutex_lock(&root->root_mtx[taskUNUSE]); | pthread_mutex_lock(&root->root_mtx[taskUNUSE]); |
| #endif |
#endif |
| |
TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) { |
| |
if (!TASK_ISLOCKED(task)) { |
| TAILQ_REMOVE(&root->root_unuse, task, task_node); |
TAILQ_REMOVE(&root->root_unuse, task, task_node); |
| #ifdef HAVE_LIBPTHREAD |
|
| pthread_mutex_unlock(&root->root_mtx[taskUNUSE]); |
|
| #endif |
|
| break; |
break; |
| } |
} |
| } |
} |
| |
#ifdef HAVE_LIBPTHREAD |
| |
pthread_mutex_unlock(&root->root_mtx[taskUNUSE]); |
| |
#endif |
| |
|
| if (!task) { |
if (!task) { |
| task = malloc(sizeof(sched_task_t)); |
task = malloc(sizeof(sched_task_t)); |
|
Line 89 sched_useTask(sched_root_task_t * __restrict root)
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Line 89 sched_useTask(sched_root_task_t * __restrict root)
|
| * @task = task |
* @task = task |
| * return: always is NULL |
* return: always is NULL |
| */ |
*/ |
| inline sched_task_t * | sched_task_t * |
| sched_unuseTask(sched_task_t * __restrict task) |
sched_unuseTask(sched_task_t * __restrict task) |
| { |
{ |
| TASK_UNLOCK(task); |
TASK_UNLOCK(task); |
|
Line 108 sched_unuseTask(sched_task_t * __restrict task)
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Line 108 sched_unuseTask(sched_task_t * __restrict task)
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| |
|
| #pragma GCC visibility push(hidden) |
#pragma GCC visibility push(hidden) |
| |
|
| |
#ifdef HAVE_LIBPTHREAD |
| |
static void |
| |
_sched_threadCleanup(sched_task_t *t) |
| |
{ |
| |
if (!t || !TASK_ROOT(t)) |
| |
return; |
| |
|
| |
if (TASK_FLAG(t) == PTHREAD_CREATE_JOINABLE) |
| |
pthread_detach(pthread_self()); |
| |
|
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pthread_mutex_lock(&TASK_ROOT(t)->root_mtx[taskTHREAD]); |
| |
TAILQ_REMOVE(&TASK_ROOT(t)->root_thread, t, task_node); |
| |
pthread_mutex_unlock(&TASK_ROOT(t)->root_mtx[taskTHREAD]); |
| |
|
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sched_unuseTask(t); |
| |
} |
| void * |
void * |
| _sched_threadJoin(sched_task_t *task) | _sched_threadWrapper(sched_task_t *t) |
| { |
{ |
| void *ret = NULL; |
void *ret = NULL; |
| |
sem_t *s = NULL; |
| |
|
| if (!task) | if (!t || !TASK_ROOT(t) || !TASK_RET(t)) |
| return NULL; | pthread_exit(ret); |
| | else |
| | s = (sem_t*) TASK_RET(t); |
| |
|
| #ifdef HAVE_LIBPTHREAD | pthread_cleanup_push((void (*)(void*)) _sched_threadCleanup, t); |
| if (pthread_kill((pthread_t) TASK_VAL(task), 0)) { | |
| pthread_join((pthread_t) TASK_VAL(task), &ret); | |
| TASK_ROOT(task)->root_ret = ret; | |
| } else { | |
| usleep(10000); | |
| schedTaskSelf(task); | |
| } | |
| #endif | |
| |
|
| return NULL; | pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, NULL); |
| | pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL); |
| | |
| | /* notify parent, thread is ready for execution */ |
| | sem_post(s); |
| | pthread_testcancel(); |
| | |
| | ret = TASK_FUNC(t)(t); |
| | |
| | pthread_cleanup_pop(42); |
| | TASK_ROOT(t)->root_ret = ret; |
| | pthread_exit(ret); |
| } |
} |
| |
#endif |
| |
|
| #pragma GCC visibility pop |
#pragma GCC visibility pop |
| |
|
|
Line 138 _sched_threadJoin(sched_task_t *task)
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Line 161 _sched_threadJoin(sched_task_t *task)
|
| * @retcode = return code |
* @retcode = return code |
| * return: return code |
* return: return code |
| */ |
*/ |
| inline void * | void * |
| sched_taskExit(sched_task_t *task, intptr_t retcode) |
sched_taskExit(sched_task_t *task, intptr_t retcode) |
| { |
{ |
| if (!task || !TASK_ROOT(task)) |
if (!task || !TASK_ROOT(task)) |
|
Line 148 sched_taskExit(sched_task_t *task, intptr_t retcode)
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Line 171 sched_taskExit(sched_task_t *task, intptr_t retcode)
|
| TASK_ROOT(task)->root_hooks.hook_exec.exit(task, (void*) retcode); |
TASK_ROOT(task)->root_hooks.hook_exec.exit(task, (void*) retcode); |
| |
|
| TASK_ROOT(task)->root_ret = (void*) retcode; |
TASK_ROOT(task)->root_ret = (void*) retcode; |
| |
|
| #ifdef HAVE_LIBPTHREAD |
|
| if (TASK_TYPE(task) == taskTHREAD) { |
|
| if (TASK_FLAG(task) == PTHREAD_CREATE_JOINABLE) /* joinable thread */ |
|
| schedTask(TASK_ROOT(task), _sched_threadJoin, TASK_ARG(task), |
|
| TASK_VAL(task), TASK_DATA(task), TASK_DATLEN(task)); |
|
| sched_unuseTask(task); |
|
| pthread_exit((void*) retcode); |
|
| } |
|
| #endif |
|
| |
|
| return (void*) retcode; |
return (void*) retcode; |
| } |
} |
| |
|
|
Line 499 schedSignal(sched_root_task_t * __restrict root, sched
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Line 511 schedSignal(sched_root_task_t * __restrict root, sched
|
| * @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 613 schedAIO(sched_root_task_t * __restrict root, sched_ta
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Line 625 schedAIO(sched_root_task_t * __restrict root, sched_ta
|
| * @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 667 schedAIORead(sched_root_task_t * __restrict root, sche
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Line 679 schedAIORead(sched_root_task_t * __restrict root, sche
|
| * @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 848 schedLIORead(sched_root_task_t * __restrict root, sche
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Line 860 schedLIORead(sched_root_task_t * __restrict root, sche
|
| * @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 1204 schedCallOnce(sched_root_task_t * __restrict root, sch
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Line 1216 schedCallOnce(sched_root_task_t * __restrict root, sch
|
| * @func = task execution function |
* @func = task execution function |
| * @arg = 1st func argument |
* @arg = 1st func argument |
| * @detach = Detach thread from scheduler, if !=0 |
* @detach = Detach thread from scheduler, if !=0 |
| |
* @ss = stack size |
| * @opt_data = Optional data |
* @opt_data = Optional data |
| * @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 |
| */ |
*/ |
| sched_task_t * |
sched_task_t * |
| schedThread(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int detach, |
schedThread(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int detach, |
| void *opt_data, size_t opt_dlen) | size_t ss, void *opt_data, size_t opt_dlen) |
| { |
{ |
| #ifndef HAVE_LIBPTHREAD |
#ifndef HAVE_LIBPTHREAD |
| sched_SetErr(ENOTSUP, "Not supported thread tasks"); |
sched_SetErr(ENOTSUP, "Not supported thread tasks"); |
|
Line 1219 schedThread(sched_root_task_t * __restrict root, sched
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Line 1232 schedThread(sched_root_task_t * __restrict root, sched
|
| sched_task_t *task; |
sched_task_t *task; |
| void *ptr; |
void *ptr; |
| pthread_attr_t attr; |
pthread_attr_t attr; |
| |
sem_t *s = NULL; |
| |
|
| if (!root || !func) |
if (!root || !func) |
| return NULL; |
return NULL; |
| |
else { |
| |
/* normalizing stack size & detach state */ |
| |
if (ss) |
| |
ss &= 0x7FFFFFFF; |
| |
detach = detach ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE; |
| |
} |
| |
|
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if (!(s = (sem_t*) malloc(sizeof(sem_t)))) { |
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LOGERR; |
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return NULL; |
| |
} |
| |
if (sem_init(s, 0, 1)) { |
| |
LOGERR; |
| |
free(s); |
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return NULL; |
| |
} |
| |
|
| /* get new task */ |
/* get new task */ |
| if (!(task = sched_useTask(root))) | if (!(task = sched_useTask(root))) { |
| | sem_destroy(s); |
| | free(s); |
| | |
| return NULL; |
return NULL; |
| |
} |
| |
|
| task->task_func = func; |
task->task_func = func; |
| TASK_TYPE(task) = taskTHREAD; |
TASK_TYPE(task) = taskTHREAD; |
| TASK_ROOT(task) = root; |
TASK_ROOT(task) = root; |
| |
|
| TASK_ARG(task) = arg; |
TASK_ARG(task) = arg; |
| TASK_FLAG(task) = detach ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE; | TASK_FLAG(task) = detach; |
| | TASK_RET(task) = (intptr_t) s; |
| |
|
| TASK_DATA(task) = opt_data; |
TASK_DATA(task) = opt_data; |
| TASK_DATLEN(task) = opt_dlen; |
TASK_DATLEN(task) = opt_dlen; |
| |
|
| pthread_attr_init(&attr); |
pthread_attr_init(&attr); |
| pthread_attr_setdetachstate(&attr, TASK_FLAG(task)); | pthread_attr_setdetachstate(&attr, detach); |
| | if (ss && (errno = pthread_attr_setstacksize(&attr, ss))) { |
| | LOGERR; |
| | pthread_attr_destroy(&attr); |
| | sem_destroy(s); |
| | free(s); |
| | return sched_unuseTask(task); |
| | } |
| | if ((errno = pthread_attr_getstacksize(&attr, &ss))) { |
| | LOGERR; |
| | pthread_attr_destroy(&attr); |
| | sem_destroy(s); |
| | free(s); |
| | return sched_unuseTask(task); |
| | } else |
| | TASK_FLAG(task) |= (ss << 1); |
| | if ((errno = pthread_attr_setguardsize(&attr, ss))) { |
| | LOGERR; |
| | pthread_attr_destroy(&attr); |
| | sem_destroy(s); |
| | free(s); |
| | return sched_unuseTask(task); |
| | } |
| | #ifdef SCHED_RR |
| | pthread_attr_setschedpolicy(&attr, SCHED_RR); |
| | #else |
| | pthread_attr_setschedpolicy(&attr, SCHED_OTHER); |
| | #endif |
| if (root->root_hooks.hook_add.thread) |
if (root->root_hooks.hook_add.thread) |
| ptr = root->root_hooks.hook_add.thread(task, &attr); |
ptr = root->root_hooks.hook_add.thread(task, &attr); |
| else |
else |
|
Line 1249 schedThread(sched_root_task_t * __restrict root, sched
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Line 1311 schedThread(sched_root_task_t * __restrict root, sched
|
| pthread_mutex_lock(&root->root_mtx[taskTHREAD]); |
pthread_mutex_lock(&root->root_mtx[taskTHREAD]); |
| TAILQ_INSERT_TAIL(&root->root_thread, TASK_ID(task), task_node); |
TAILQ_INSERT_TAIL(&root->root_thread, TASK_ID(task), task_node); |
| pthread_mutex_unlock(&root->root_mtx[taskTHREAD]); |
pthread_mutex_unlock(&root->root_mtx[taskTHREAD]); |
| |
|
| |
/* wait for init thread actions */ |
| |
sem_wait(s); |
| } else |
} else |
| task = sched_unuseTask(task); |
task = sched_unuseTask(task); |
| |
|
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sem_destroy(s); |
| |
free(s); |
| return task; |
return task; |
| } |
} |
| |
|
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/* |
| |
* 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 Signal No. |
| |
* return: NULL error or !=NULL new queued task |
| |
*/ |
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sched_task_t * |
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schedRTC(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct timespec ts, |
| |
void *opt_data, size_t opt_dlen) |
| |
{ |
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sched_task_t *task; |
| |
void *ptr; |
| |
|
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if (!root || !func) |
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return NULL; |
| |
|
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/* get new task */ |
| |
if (!(task = sched_useTask(root))) |
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return NULL; |
| |
|
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task->task_func = func; |
| |
TASK_TYPE(task) = taskRTC; |
| |
TASK_ROOT(task) = root; |
| |
|
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TASK_ARG(task) = arg; |
| |
TASK_TS(task) = ts; |
| |
|
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TASK_DATA(task) = opt_data; |
| |
TASK_DATLEN(task) = opt_dlen; |
| |
|
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if (root->root_hooks.hook_add.rtc) |
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ptr = root->root_hooks.hook_add.rtc(task, NULL); |
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else |
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ptr = NULL; |
| |
|
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if (!ptr) { |
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#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_lock(&root->root_mtx[taskRTC]); |
| |
#endif |
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TAILQ_INSERT_TAIL(&root->root_rtc, TASK_ID(task), task_node); |
| |
#ifdef HAVE_LIBPTHREAD |
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pthread_mutex_unlock(&root->root_mtx[taskRTC]); |
| |
#endif |
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} else |
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task = sched_unuseTask(task); |
| |
|
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return task; |
| |
} |