libaitsched/src/tasks.c - diff

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Diff for /libaitsched/src/tasks.c between versions 1.4 and 1.8

version 1.4, 2012/01/08 00:51:17	version 1.8, 2012/05/30 08:52:45
Line 12 terms:	Line 12 terms:
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	Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
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 51 SUCH DAMAGE.	Line 51 SUCH DAMAGE.
inline sched_task_t *	inline sched_task_t *
_sched_useTask(sched_root_task_t * __restrict root)	_sched_useTask(sched_root_task_t * __restrict root)
{	{
sched_task_t *task;	sched_task_t task, tmp;

TAILQ_FOREACH(task, &root->root_unuse, task_node) {	TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) {
if (!TASK_ISLOCKED(task)) {	if (!TASK_ISLOCKED(task)) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskUNUSE]);
	#endif
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;
}	}
}	}
Line 75 inline sched_task_t *	Line 81 inline sched_task_t *
_sched_unuseTask(sched_task_t * __restrict task)	_sched_unuseTask(sched_task_t * __restrict task)
{	{
TASK_UNLOCK(task);	TASK_UNLOCK(task);
task->task_type = taskUNUSE;	TASK_TYPE(task) = taskUNUSE;
TAILQ_INSERT_TAIL(&task->task_root->root_unuse, task, task_node);	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&TASK_ROOT(task)->root_mtx[taskUNUSE]);
	#endif
	TAILQ_INSERT_TAIL(&TASK_ROOT(task)->root_unuse, task, task_node);
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&TASK_ROOT(task)->root_mtx[taskUNUSE]);
	#endif
task = NULL;	task = NULL;

return task;	return task;
Line 87 _sched_unuseTask(sched_task_t * __restrict task)	Line 99 _sched_unuseTask(sched_task_t * __restrict task)

/*	/*
* schedRead() - Add READ I/O task to scheduler queue	* schedRead() - Add READ I/O task to scheduler queue
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @fd = fd handle	* @fd = fd handle
	* @opt_data = Optional data
	* @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 *
schedRead(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd)	schedRead(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t *task;	sched_task_t *task;
void *ptr;	void *ptr;
Line 109 schedRead(sched_root_task_t * __restrict root, sched_t	Line 125 schedRead(sched_root_task_t * __restrict root, sched_t
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskREAD;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskREAD;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;
TASK_FD(task) = fd;	TASK_FD(task) = fd;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

if (root->root_hooks.hook_add.read)	if (root->root_hooks.hook_add.read)
ptr = root->root_hooks.hook_add.read(task, NULL);	ptr = root->root_hooks.hook_add.read(task, NULL);
else	else
ptr = NULL;	ptr = NULL;

if (!ptr)	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskREAD]);
	#endif
TAILQ_INSERT_TAIL(&root->root_read, task, task_node);	TAILQ_INSERT_TAIL(&root->root_read, task, task_node);
else	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskREAD]);
	#endif
	} else
task = _sched_unuseTask(task);	task = _sched_unuseTask(task);

return task;	return task;
Line 131 schedRead(sched_root_task_t * __restrict root, sched_t	Line 156 schedRead(sched_root_task_t * __restrict root, sched_t

/*	/*
* schedWrite() - Add WRITE I/O task to scheduler queue	* schedWrite() - Add WRITE I/O task to scheduler queue
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @fd = fd handle	* @fd = fd handle
	* @opt_data = Optional data
	* @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 *
schedWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd)	schedWrite(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t *task;	sched_task_t *task;
void *ptr;	void *ptr;
Line 153 schedWrite(sched_root_task_t * __restrict root, sched_	Line 182 schedWrite(sched_root_task_t * __restrict root, sched_
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskWRITE;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskWRITE;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;
TASK_FD(task) = fd;	TASK_FD(task) = fd;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

if (root->root_hooks.hook_add.write)	if (root->root_hooks.hook_add.write)
ptr = root->root_hooks.hook_add.write(task, NULL);	ptr = root->root_hooks.hook_add.write(task, NULL);
else	else
ptr = NULL;	ptr = NULL;

if (!ptr)	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskWRITE]);
	#endif
TAILQ_INSERT_TAIL(&root->root_write, task, task_node);	TAILQ_INSERT_TAIL(&root->root_write, task, task_node);
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskWRITE]);
	#endif
	} else
	task = _sched_unuseTask(task);

	return task;
	}

	/*
	* schedAlarm() - Add ALARM 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 data
	* @opt_dlen = Optional data length
	* return: NULL error or !=NULL new queued task
	*/
	sched_task_t *
	schedAlarm(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct timespec ts,
	void *opt_data, size_t opt_dlen)
	{
	sched_task_t *task;
	void *ptr;

	if (!root \|\| !func)
	return NULL;

	/* get new task */
	if (!(task = _sched_useTask(root)))
	return NULL;

	memset(task, 0, sizeof(sched_task_t));
	task->task_id = 0;
	task->task_lock = 0;
	task->task_func = func;
	TASK_TYPE(task) = taskALARM;
	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.alarm)
	ptr = root->root_hooks.hook_add.alarm(task, NULL);
else	else
	ptr = NULL;

	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskALARM]);
	#endif
	TAILQ_INSERT_TAIL(&root->root_alarm, task, task_node);
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskALARM]);
	#endif
	} else
task = _sched_unuseTask(task);	task = _sched_unuseTask(task);

return task;	return task;
Line 175 schedWrite(sched_root_task_t * __restrict root, sched_	Line 270 schedWrite(sched_root_task_t * __restrict root, sched_

/*	/*
* schedTimer() - Add TIMER task to scheduler queue	* schedTimer() - Add TIMER task to scheduler queue
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @tv = timeout argument structure	* @ts = timeout argument structure
	* @opt_data = Optional data
	* @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 *
schedTimer(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct timeval tv)	schedTimer(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct timespec ts,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t task, t = NULL;	sched_task_t task, t = NULL;
void *ptr;	void *ptr;
struct timeval now;	struct timespec now;
struct timespec nw;

if (!root \|\| !func)	if (!root \|\| !func)
return NULL;	return NULL;
Line 199 schedTimer(sched_root_task_t * __restrict root, sched_	Line 297 schedTimer(sched_root_task_t * __restrict root, sched_
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskTIMER;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskTIMER;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

/* calculate timeval structure */	/* calculate timeval structure */
clock_gettime(CLOCK_MONOTONIC, &nw);	clock_gettime(CLOCK_MONOTONIC, &now);
now.tv_sec = nw.tv_sec + tv.tv_sec;	now.tv_sec += ts.tv_sec;
now.tv_usec = nw.tv_nsec / 1000 + tv.tv_usec;	now.tv_nsec += ts.tv_nsec;
if (now.tv_usec >= 1000000) {	if (now.tv_nsec >= 1000000000L) {
now.tv_sec++;	now.tv_sec++;
now.tv_usec -= 1000000;	now.tv_nsec -= 1000000000L;
} else if (now.tv_usec < 0) {	} else if (now.tv_nsec < 0) {
now.tv_sec--;	now.tv_sec--;
now.tv_usec += 1000000;	now.tv_nsec += 1000000000L;
}	}
TASK_TV(task) = now;	TASK_TS(task) = now;

if (root->root_hooks.hook_add.timer)	if (root->root_hooks.hook_add.timer)
ptr = root->root_hooks.hook_add.timer(task, NULL);	ptr = root->root_hooks.hook_add.timer(task, NULL);
Line 224 schedTimer(sched_root_task_t * __restrict root, sched_	Line 325 schedTimer(sched_root_task_t * __restrict root, sched_
ptr = NULL;	ptr = NULL;

if (!ptr) {	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskTIMER]);
	#endif
#ifdef TIMER_WITHOUT_SORT	#ifdef TIMER_WITHOUT_SORT
TAILQ_INSERT_TAIL(&root->root_timer, task, task_node);	TAILQ_INSERT_TAIL(&root->root_timer, task, task_node);
#else	#else
TAILQ_FOREACH(t, &root->root_timer, task_node)	TAILQ_FOREACH(t, &root->root_timer, task_node)
if (timercmp(&TASK_TV(task), &TASK_TV(t), -) < 1)	if (sched_timespeccmp(&TASK_TS(task), &TASK_TS(t), -) < 1)
break;	break;
if (!t)	if (!t)
TAILQ_INSERT_TAIL(&root->root_timer, task, task_node);	TAILQ_INSERT_TAIL(&root->root_timer, task, task_node);
else	else
TAILQ_INSERT_BEFORE(t, task, task_node);	TAILQ_INSERT_BEFORE(t, task, task_node);
#endif	#endif
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskTIMER]);
	#endif
} else	} else
task = _sched_unuseTask(task);	task = _sched_unuseTask(task);

Line 243 schedTimer(sched_root_task_t * __restrict root, sched_	Line 350 schedTimer(sched_root_task_t * __restrict root, sched_

/*	/*
* schedEvent() - Add EVENT task to scheduler queue	* schedEvent() - Add EVENT task to scheduler queue
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @val = additional func argument	* @val = additional func argument
	* @opt_data = Optional data
	* @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 *
schedEvent(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val)	schedEvent(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t *task;	sched_task_t *task;
void *ptr;	void *ptr;
Line 265 schedEvent(sched_root_task_t * __restrict root, sched_	Line 376 schedEvent(sched_root_task_t * __restrict root, sched_
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskEVENT;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskEVENT;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;
TASK_VAL(task) = val;	TASK_VAL(task) = val;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

if (root->root_hooks.hook_add.event)	if (root->root_hooks.hook_add.event)
ptr = root->root_hooks.hook_add.event(task, NULL);	ptr = root->root_hooks.hook_add.event(task, NULL);
else	else
ptr = NULL;	ptr = NULL;

if (!ptr)	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskEVENT]);
	#endif
TAILQ_INSERT_TAIL(&root->root_event, task, task_node);	TAILQ_INSERT_TAIL(&root->root_event, task, task_node);
else	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskEVENT]);
	#endif
	} else
task = _sched_unuseTask(task);	task = _sched_unuseTask(task);

return task;	return task;
Line 288 schedEvent(sched_root_task_t * __restrict root, sched_	Line 408 schedEvent(sched_root_task_t * __restrict root, sched_

/*	/*
* schedEventLo() - Add EVENT_Lo task to scheduler queue	* schedEventLo() - Add EVENT_Lo task to scheduler queue
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @val = additional func argument	* @val = additional func argument
	* @opt_data = Optional data
	* @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 *
schedEventLo(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val)	schedEventLo(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t *task;	sched_task_t *task;
void *ptr;	void *ptr;
Line 310 schedEventLo(sched_root_task_t * __restrict root, sche	Line 434 schedEventLo(sched_root_task_t * __restrict root, sche
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskEVENT;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskEVENT;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;
TASK_VAL(task) = val;	TASK_VAL(task) = val;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

if (root->root_hooks.hook_add.eventlo)	if (root->root_hooks.hook_add.eventlo)
ptr = root->root_hooks.hook_add.eventlo(task, NULL);	ptr = root->root_hooks.hook_add.eventlo(task, NULL);
else	else
ptr = NULL;	ptr = NULL;

if (!ptr)	if (!ptr) {
	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_lock(&root->root_mtx[taskEVENTLO]);
	#endif
TAILQ_INSERT_TAIL(&root->root_eventlo, task, task_node);	TAILQ_INSERT_TAIL(&root->root_eventlo, task, task_node);
else	#ifdef HAVE_LIBPTHREAD
	pthread_mutex_unlock(&root->root_mtx[taskEVENTLO]);
	#endif
	} else
task = _sched_unuseTask(task);	task = _sched_unuseTask(task);

return task;	return task;
Line 332 schedEventLo(sched_root_task_t * __restrict root, sche	Line 465 schedEventLo(sched_root_task_t * __restrict root, sche

/*	/*
* schedCallOnce() - Call once from scheduler	* schedCallOnce() - Call once from scheduler
	*
* @root = root task	* @root = root task
* @func = task execution function	* @func = task execution function
* @arg = 1st func argument	* @arg = 1st func argument
* @val = additional func argument	* @val = additional func argument
	* @opt_data = Optional data
	* @opt_dlen = Optional data length
* return: return value from called func	* return: return value from called func
*/	*/
sched_task_t *	sched_task_t *
schedCallOnce(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val)	schedCallOnce(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val,
	void *opt_data, size_t opt_dlen)
{	{
sched_task_t *task;	sched_task_t *task;
void *ret;	void *ret;
Line 354 schedCallOnce(sched_root_task_t * __restrict root, sch	Line 491 schedCallOnce(sched_root_task_t * __restrict root, sch
memset(task, 0, sizeof(sched_task_t));	memset(task, 0, sizeof(sched_task_t));
task->task_id = 0;	task->task_id = 0;
task->task_lock = 0;	task->task_lock = 0;
task->task_type = taskEVENT;
task->task_root = root;
task->task_func = func;	task->task_func = func;
	TASK_TYPE(task) = taskEVENT;
	TASK_ROOT(task) = root;

TASK_ARG(task) = arg;	TASK_ARG(task) = arg;
TASK_VAL(task) = val;	TASK_VAL(task) = val;

	TASK_DATA(task) = opt_data;
	TASK_DATLEN(task) = opt_dlen;

ret = schedCall(task);	ret = schedCall(task);

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Removed from v.1.4
changed lines
	Added in v.1.8