--- libaitsched/src/tasks.c 2012/08/02 12:19:29 1.10.2.8 +++ libaitsched/src/tasks.c 2012/08/08 08:15:24 1.11.2.1 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: tasks.c,v 1.10.2.8 2012/08/02 12:19:29 misho Exp $ +* $Id: tasks.c,v 1.11.2.1 2012/08/08 08:15:24 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -482,7 +482,7 @@ schedAlarm(sched_root_task_t * __restrict root, sched_ return task; } -#ifdef EVFILT_AIO +#ifdef AIO_SUPPORT /* * schedAIO() - Add AIO task to scheduler queue * @@ -647,6 +647,60 @@ schedAIOWrite(sched_root_task_t * __restrict root, sch #ifdef EVFILT_LIO /* + * schedLIO() - Add AIO bulk tasks to scheduler queue + * + * @root = root task + * @func = task execution function + * @arg = 1st func argument + * @acbs = AIO cb structure addresses + * @opt_data = Optional data + * @opt_dlen = Optional data length + * return: NULL error or !=NULL new queued task + */ +sched_task_t * +schedLIO(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, + struct aiocb ** __restrict acbs, void *opt_data, size_t opt_dlen) +{ + sched_task_t *task; + void *ptr; + + if (!root || !func || !acbs || !opt_dlen) + return NULL; + + /* get new task */ + if (!(task = _sched_useTask(root))) + return NULL; + + task->task_func = func; + TASK_TYPE(task) = taskLIO; + TASK_ROOT(task) = root; + + TASK_ARG(task) = arg; + TASK_VAL(task) = (u_long) acbs; + + TASK_DATA(task) = opt_data; + TASK_DATLEN(task) = opt_dlen; + + if (root->root_hooks.hook_add.lio) + ptr = root->root_hooks.hook_add.lio(task, NULL); + else + ptr = NULL; + + if (!ptr) { +#ifdef HAVE_LIBPTHREAD + pthread_mutex_lock(&root->root_mtx[taskLIO]); +#endif + TAILQ_INSERT_TAIL(&root->root_lio, TASK_ID(task), task_node); +#ifdef HAVE_LIBPTHREAD + pthread_mutex_unlock(&root->root_mtx[taskLIO]); +#endif + } else + task = _sched_unuseTask(task); + + return task; +} + +/* * schedLIORead() - Add list of AIO read tasks to scheduler queue * * @root = root task @@ -691,7 +745,7 @@ schedLIORead(sched_root_task_t * __restrict root, sche for (i = 0; i < nbufs; i++) if (acb[i]) free(acb[i]); - free(acb); + free(acb); return NULL; } else memset(acb[i], 0, sizeof(struct aiocb)); @@ -708,10 +762,14 @@ schedLIORead(sched_root_task_t * __restrict root, sche if (lio_listio(LIO_NOWAIT, acb, nbufs, &sig)) { LOGERR; + for (i = 0; i < nbufs; i++) + if (acb[i]) + free(acb[i]); + free(acb); return NULL; } - return schedAIO(root, func, arg, (void*) acb, bufs, nbufs); + return schedLIO(root, func, arg, (void*) acb, bufs, nbufs); } /* @@ -759,7 +817,7 @@ schedLIOWrite(sched_root_task_t * __restrict root, sch for (i = 0; i < nbufs; i++) if (acb[i]) free(acb[i]); - free(acb); + free(acb); return NULL; } else memset(acb[i], 0, sizeof(struct aiocb)); @@ -776,13 +834,17 @@ schedLIOWrite(sched_root_task_t * __restrict root, sch if (lio_listio(LIO_NOWAIT, acb, nbufs, &sig)) { LOGERR; + for (i = 0; i < nbufs; i++) + if (acb[i]) + free(acb[i]); + free(acb); return NULL; } - return schedAIO(root, func, arg, (void*) acb, bufs, nbufs); + return schedLIO(root, func, arg, (void*) acb, bufs, nbufs); } #endif /* EVFILT_LIO */ -#endif /* EVFILT_AIO */ +#endif /* AIO_SUPPORT */ /* * schedTimer() - Add TIMER task to scheduler queue @@ -917,21 +979,21 @@ schedEvent(sched_root_task_t * __restrict root, sched_ /* - * schedEventLo() - Add EVENT_Lo task to scheduler queue + * schedTask() - Add regular task to scheduler queue * * @root = root task * @func = task execution function * @arg = 1st func argument - * @val = additional func argument + * @prio = regular task priority, 0 is hi priority for regular tasks * @opt_data = Optional data * @opt_dlen = Optional data length * return: NULL error or !=NULL new queued task */ sched_task_t * -schedEventLo(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long val, +schedTask(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long prio, void *opt_data, size_t opt_dlen) { - sched_task_t *task; + sched_task_t *task, *tmp, *t = NULL; void *ptr; if (!root || !func) @@ -942,27 +1004,33 @@ schedEventLo(sched_root_task_t * __restrict root, sche return NULL; task->task_func = func; - TASK_TYPE(task) = taskEVENT; + TASK_TYPE(task) = taskTASK; TASK_ROOT(task) = root; TASK_ARG(task) = arg; - TASK_VAL(task) = val; + TASK_VAL(task) = prio; TASK_DATA(task) = opt_data; TASK_DATLEN(task) = opt_dlen; - if (root->root_hooks.hook_add.eventlo) - ptr = root->root_hooks.hook_add.eventlo(task, NULL); + if (root->root_hooks.hook_add.task) + ptr = root->root_hooks.hook_add.task(task, NULL); else ptr = NULL; if (!ptr) { #ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskEVENTLO]); + pthread_mutex_lock(&root->root_mtx[taskTASK]); #endif - TAILQ_INSERT_TAIL(&root->root_eventlo, TASK_ID(task), task_node); + TAILQ_FOREACH_SAFE(t, &root->root_task, task_node, tmp) + if (TASK_VAL(task) < TASK_VAL(t)) + break; + if (!t) + TAILQ_INSERT_TAIL(&root->root_task, TASK_ID(task), task_node); + else + TAILQ_INSERT_BEFORE(t, TASK_ID(task), task_node); #ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskEVENTLO]); + pthread_mutex_unlock(&root->root_mtx[taskTASK]); #endif } else task = _sched_unuseTask(task);