--- libaitsched/src/tasks.c 2012/08/01 14:11:43 1.10.2.3 +++ libaitsched/src/tasks.c 2019/01/31 22:31:40 1.27.2.1 @@ -3,7 +3,7 @@ * by Michael Pounov * * $Author: misho $ -* $Id: tasks.c,v 1.10.2.3 2012/08/01 14:11:43 misho Exp $ +* $Id: tasks.c,v 1.27.2.1 2019/01/31 22:31:40 misho Exp $ * ************************************************************************** The ELWIX and AITNET software is distributed under the following @@ -12,7 +12,7 @@ terms: All of the documentation and software included in the ELWIX and AITNET Releases is copyrighted by ELWIX - Sofia/Bulgaria -Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 +Copyright 2004 - 2019 by Michael Pounov . All rights reserved. Redistribution and use in source and binary forms, with or without @@ -46,25 +46,25 @@ SUCH DAMAGE. #include "global.h" -#pragma GCC visibility push(hidden) - -inline sched_task_t * -_sched_useTask(sched_root_task_t * __restrict root) +/* + * sched_useTask() - Get and init new task + * + * @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_QLOCK(root, taskUNUSE); TAILQ_FOREACH_SAFE(task, &root->root_unuse, task_node, tmp) { if (!TASK_ISLOCKED(task)) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskUNUSE]); -#endif TAILQ_REMOVE(&root->root_unuse, task, task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskUNUSE]); -#endif break; } } + SCHED_QUNLOCK(root, taskUNUSE); if (!task) { task = malloc(sizeof(sched_task_t)); @@ -79,26 +79,45 @@ _sched_useTask(sched_root_task_t * __restrict root) return task; } -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_TYPE(task) = taskUNUSE; -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&TASK_ROOT(task)->root_mtx[taskUNUSE]); -#endif - TAILQ_INSERT_TAIL(&TASK_ROOT(task)->root_unuse, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&TASK_ROOT(task)->root_mtx[taskUNUSE]); -#endif - task = NULL; + insert_task_to(task, &(TASK_ROOT(task))->root_unuse); + task = NULL; return task; } -#pragma GCC visibility pop +/* + * sched_taskExit() - Exit routine for scheduler task, explicit required for thread tasks + * + * @task = current task + * @retcode = return code + * return: return code + */ +void * +sched_taskExit(sched_task_t *task, intptr_t retcode) +{ + if (!task || !TASK_ROOT(task)) + return (void*) -1; + if (TASK_ROOT(task)->root_hooks.hook_exec.exit) + TASK_ROOT(task)->root_hooks.hook_exec.exit(task, (void*) retcode); + TASK_ROOT(task)->root_ret = (void*) retcode; + return (void*) retcode; +} + + /* * schedRead() - Add READ I/O task to scheduler queue * @@ -121,10 +140,10 @@ schedRead(sched_root_task_t * __restrict root, sched_t return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskREAD; TASK_ROOT(task) = root; @@ -139,16 +158,10 @@ schedRead(sched_root_task_t * __restrict root, sched_t else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskREAD]); -#endif - TAILQ_INSERT_TAIL(&root->root_read, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskREAD]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_read); + else + task = sched_unuseTask(task); return task; } @@ -175,10 +188,10 @@ schedWrite(sched_root_task_t * __restrict root, sched_ return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskWRITE; TASK_ROOT(task) = root; @@ -193,16 +206,10 @@ schedWrite(sched_root_task_t * __restrict root, sched_ else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskWRITE]); -#endif - TAILQ_INSERT_TAIL(&root->root_write, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskWRITE]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_write); + else + task = sched_unuseTask(task); return task; } @@ -222,6 +229,10 @@ sched_task_t * schedNode(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, void *opt_data, size_t opt_dlen) { +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else sched_task_t *task; void *ptr; @@ -229,10 +240,10 @@ schedNode(sched_root_task_t * __restrict root, sched_t return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskNODE; TASK_ROOT(task) = root; @@ -247,18 +258,71 @@ schedNode(sched_root_task_t * __restrict root, sched_t else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskNODE]); + if (!ptr) + insert_task_to(task, &root->root_node); + else + task = sched_unuseTask(task); + + return task; +#endif /* KQ_SUPPORT */ +} + +/* + * schedNode2() - Add NODE task with all events to scheduler queue + * + * @root = root task + * @func = task execution function + * @arg = 1st func argument + * @fd = fd handle + * @opt_data = Optional data + * @opt_dlen = Optional data length + * return: NULL error or !=NULL new queued task + */ +sched_task_t * +schedNode2(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, + void *opt_data, size_t opt_dlen) +{ +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else + sched_task_t *task; + void *ptr; + + if (!root || !func) + return NULL; + + /* get new task */ + if (!(task = sched_useTask(root))) + return NULL; + + TASK_FUNC(task) = func; + TASK_TYPE(task) = taskNODE; + TASK_ROOT(task) = root; + + TASK_ARG(task) = arg; + TASK_FD(task) = fd; + + TASK_DATA(task) = opt_data; + TASK_DATLEN(task) = opt_dlen; + + if (root->root_hooks.hook_add.node) +#ifdef __FreeBSD__ + ptr = root->root_hooks.hook_add.node(task, + (void*) (NOTE_READ | NOTE_CLOSE_WRITE | NOTE_CLOSE | NOTE_OPEN)); +#else + ptr = root->root_hooks.hook_add.node(task, NULL); #endif - TAILQ_INSERT_TAIL(&root->root_node, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskNODE]); -#endif - } else - task = _sched_unuseTask(task); + else + ptr = NULL; + if (!ptr) + insert_task_to(task, &root->root_node); + else + task = sched_unuseTask(task); + return task; +#endif /* KQ_SUPPORT */ } /* @@ -276,6 +340,10 @@ sched_task_t * schedProc(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long pid, void *opt_data, size_t opt_dlen) { +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else sched_task_t *task; void *ptr; @@ -283,10 +351,10 @@ schedProc(sched_root_task_t * __restrict root, sched_t return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskPROC; TASK_ROOT(task) = root; @@ -301,18 +369,13 @@ schedProc(sched_root_task_t * __restrict root, sched_t else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskPROC]); -#endif - TAILQ_INSERT_TAIL(&root->root_proc, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskPROC]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_proc); + else + task = sched_unuseTask(task); return task; +#endif /* KQ_SUPPORT */ } /* @@ -330,6 +393,10 @@ sched_task_t * schedUser(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long id, void *opt_data, size_t opt_dlen) { +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else #ifndef EVFILT_USER sched_SetErr(ENOTSUP, "Not supported kevent() filter"); return NULL; @@ -341,10 +408,10 @@ schedUser(sched_root_task_t * __restrict root, sched_t return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskUSER; TASK_ROOT(task) = root; @@ -359,19 +426,14 @@ schedUser(sched_root_task_t * __restrict root, sched_t else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskUSER]); -#endif - TAILQ_INSERT_TAIL(&root->root_user, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskUSER]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_user); + else + task = sched_unuseTask(task); return task; -#endif +#endif /* EVFILT_USER */ +#endif /* KQ_SUPPORT */ } /* @@ -389,6 +451,10 @@ sched_task_t * schedSignal(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, u_long sig, void *opt_data, size_t opt_dlen) { +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else sched_task_t *task; void *ptr; @@ -396,10 +462,10 @@ schedSignal(sched_root_task_t * __restrict root, sched return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskSIGNAL; TASK_ROOT(task) = root; @@ -414,18 +480,13 @@ schedSignal(sched_root_task_t * __restrict root, sched else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskSIGNAL]); -#endif - TAILQ_INSERT_TAIL(&root->root_signal, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskSIGNAL]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_signal); + else + task = sched_unuseTask(task); return task; +#endif /* KQ_SUPPORT */ } /* @@ -435,7 +496,7 @@ schedSignal(sched_root_task_t * __restrict root, sched * @func = task execution function * @arg = 1st func argument * @ts = timeout argument structure, minimum alarm timer resolution is 1msec! - * @opt_data = Optional data + * @opt_data = Alarm timer ID * @opt_dlen = Optional data length * return: NULL error or !=NULL new queued task */ @@ -443,6 +504,10 @@ 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) { +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else sched_task_t *task; void *ptr; @@ -450,10 +515,10 @@ schedAlarm(sched_root_task_t * __restrict root, sched_ return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskALARM; TASK_ROOT(task) = root; @@ -468,20 +533,16 @@ schedAlarm(sched_root_task_t * __restrict root, sched_ else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskALARM]); -#endif - TAILQ_INSERT_TAIL(&root->root_alarm, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskALARM]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_alarm); + else + task = sched_unuseTask(task); return task; +#endif /* KQ_SUPPORT */ } +#ifdef AIO_SUPPORT /* * schedAIO() - Add AIO task to scheduler queue * @@ -497,21 +558,21 @@ sched_task_t * schedAIO(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, struct aiocb * __restrict acb, void *opt_data, size_t opt_dlen) { -#ifndef EVFILT_AIO - sched_SetErr(ENOTSUP, "Not supported kevent() filter"); +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); return NULL; #else sched_task_t *task; void *ptr; - if (!root || !func) + if (!root || !func || !acb || !opt_dlen) return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskAIO; TASK_ROOT(task) = root; @@ -526,19 +587,13 @@ schedAIO(sched_root_task_t * __restrict root, sched_ta else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskAIO]); -#endif - TAILQ_INSERT_TAIL(&root->root_aio, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskAIO]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_aio); + else + task = sched_unuseTask(task); return task; -#endif +#endif /* KQ_SUPPORT */ } /* @@ -550,24 +605,32 @@ schedAIO(sched_root_task_t * __restrict root, sched_ta * @fd = file descriptor * @buffer = Buffer * @buflen = Buffer length + * @offset = Offset from start of file, if =-1 from current position * 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, - void *buffer, size_t buflen) + void *buffer, size_t buflen, off_t offset) { -#ifndef EVFILT_AIO - sched_SetErr(ENOTSUP, "Not supported kevent() filter"); +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); return NULL; #else struct aiocb *acb; - off_t off = 0; + off_t off; - if (!root || !func) + if (!root || !func || !buffer || !buflen) return NULL; - else - memset(buffer, 0, buflen); + if (offset == (off_t) -1) { + off = lseek(fd, 0, SEEK_CUR); + if (off == -1) { + LOGERR; + return NULL; + } + } else + off = offset; + if (!(acb = malloc(sizeof(struct aiocb)))) { LOGERR; return NULL; @@ -577,17 +640,10 @@ schedAIORead(sched_root_task_t * __restrict root, sche acb->aio_fildes = fd; acb->aio_nbytes = buflen; acb->aio_buf = buffer; - off = lseek(fd, 0, SEEK_CUR); - if (off == -1) { - LOGERR; - free(acb); - return NULL; - } else - acb->aio_offset = off; + acb->aio_offset = off; acb->aio_sigevent.sigev_notify = SIGEV_KEVENT; - acb->aio_sigevent.sigev_notify_kevent_flags = EV_CLEAR | EV_DISPATCH; acb->aio_sigevent.sigev_notify_kqueue = root->root_kq; - acb->aio_sigevent.sigev_value.sival_ptr = (void*) O_RDONLY; + acb->aio_sigevent.sigev_value.sival_ptr = acb; if (aio_read(acb)) { LOGERR; @@ -596,7 +652,7 @@ schedAIORead(sched_root_task_t * __restrict root, sche } return schedAIO(root, func, arg, acb, buffer, buflen); -#endif +#endif /* KQ_SUPPORT */ } /* @@ -608,24 +664,32 @@ schedAIORead(sched_root_task_t * __restrict root, sche * @fd = file descriptor * @buffer = Buffer * @buflen = Buffer length + * @offset = Offset from start of file, if =-1 from current position * 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, - void *buffer, size_t buflen) + void *buffer, size_t buflen, off_t offset) { -#ifndef EVFILT_AIO - sched_SetErr(ENOTSUP, "Not supported kevent() filter"); +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); return NULL; #else struct aiocb *acb; - off_t off = 0; + off_t off; - if (!root || !func) + if (!root || !func || !buffer || !buflen) return NULL; - else - memset(buffer, 0, buflen); + if (offset == (off_t) -1) { + off = lseek(fd, 0, SEEK_CUR); + if (off == -1) { + LOGERR; + return NULL; + } + } else + off = offset; + if (!(acb = malloc(sizeof(struct aiocb)))) { LOGERR; return NULL; @@ -635,17 +699,10 @@ schedAIOWrite(sched_root_task_t * __restrict root, sch acb->aio_fildes = fd; acb->aio_nbytes = buflen; acb->aio_buf = buffer; - off = lseek(fd, 0, SEEK_CUR); - if (off == -1) { - LOGERR; - free(acb); - return NULL; - } else - acb->aio_offset = off; + acb->aio_offset = off; acb->aio_sigevent.sigev_notify = SIGEV_KEVENT; - acb->aio_sigevent.sigev_notify_kevent_flags = EV_CLEAR | EV_DISPATCH; acb->aio_sigevent.sigev_notify_kqueue = root->root_kq; - acb->aio_sigevent.sigev_value.sival_ptr = (void*) O_WRONLY; + acb->aio_sigevent.sigev_value.sival_ptr = acb; if (aio_write(acb)) { LOGERR; @@ -654,10 +711,220 @@ schedAIOWrite(sched_root_task_t * __restrict root, sch } return schedAIO(root, func, arg, acb, buffer, buflen); -#endif +#endif /* KQ_SUPPORT */ } +#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) +{ +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else + 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_FUNC(task) = 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) + insert_task_to(task, &root->root_lio); + else + task = sched_unuseTask(task); + + return task; +#endif /* KQ_SUPPORT */ +} + +/* + * schedLIORead() - Add list of AIO read tasks to scheduler queue + * + * @root = root task + * @func = task execution function + * @arg = 1st func argument + * @fd = file descriptor + * @bufs = Buffer's list + * @nbufs = Number of Buffers + * @offset = Offset from start of file, if =-1 from current position + * return: NULL error or !=NULL new queued task + */ +sched_task_t * +schedLIORead(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, int fd, + struct iovec *bufs, size_t nbufs, off_t offset) +{ +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else + struct sigevent sig; + struct aiocb **acb; + off_t off; + register int i; + + if (!root || !func || !bufs || !nbufs) + return NULL; + + if (offset == (off_t) -1) { + off = lseek(fd, 0, SEEK_CUR); + if (off == -1) { + LOGERR; + return NULL; + } + } else + off = offset; + + if (!(acb = calloc(sizeof(void*), nbufs))) { + LOGERR; + return NULL; + } else + memset(acb, 0, sizeof(void*) * nbufs); + for (i = 0; i < nbufs; off += bufs[i++].iov_len) { + acb[i] = malloc(sizeof(struct aiocb)); + if (!acb[i]) { + LOGERR; + for (i = 0; i < nbufs; i++) + if (acb[i]) + free(acb[i]); + free(acb); + return NULL; + } else + memset(acb[i], 0, sizeof(struct aiocb)); + acb[i]->aio_fildes = fd; + acb[i]->aio_nbytes = bufs[i].iov_len; + acb[i]->aio_buf = bufs[i].iov_base; + acb[i]->aio_offset = off; + acb[i]->aio_lio_opcode = LIO_READ; + } + memset(&sig, 0, sizeof sig); + sig.sigev_notify = SIGEV_KEVENT; + sig.sigev_notify_kqueue = root->root_kq; + sig.sigev_value.sival_ptr = acb; + + 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 schedLIO(root, func, arg, (void*) acb, bufs, nbufs); +#endif /* KQ_SUPPORT */ +} + +/* + * schedLIOWrite() - Add list of AIO write tasks to scheduler queue + * + * @root = root task + * @func = task execution function + * @arg = 1st func argument + * @fd = file descriptor + * @bufs = Buffer's list + * @nbufs = Number of Buffers + * @offset = Offset from start of file, if =-1 from current position + * return: NULL error or !=NULL new queued task + */ +sched_task_t * +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) +{ +#if SUP_ENABLE != KQ_SUPPORT + sched_SetErr(ENOTSUP, "disabled kqueue support"); + return NULL; +#else + struct sigevent sig; + struct aiocb **acb; + off_t off; + register int i; + + if (!root || !func || !bufs || !nbufs) + return NULL; + + if (offset == (off_t) -1) { + off = lseek(fd, 0, SEEK_CUR); + if (off == -1) { + LOGERR; + return NULL; + } + } else + off = offset; + + if (!(acb = calloc(sizeof(void*), nbufs))) { + LOGERR; + return NULL; + } else + memset(acb, 0, sizeof(void*) * nbufs); + for (i = 0; i < nbufs; off += bufs[i++].iov_len) { + acb[i] = malloc(sizeof(struct aiocb)); + if (!acb[i]) { + LOGERR; + for (i = 0; i < nbufs; i++) + if (acb[i]) + free(acb[i]); + free(acb); + return NULL; + } else + memset(acb[i], 0, sizeof(struct aiocb)); + acb[i]->aio_fildes = fd; + acb[i]->aio_nbytes = bufs[i].iov_len; + acb[i]->aio_buf = bufs[i].iov_base; + acb[i]->aio_offset = off; + acb[i]->aio_lio_opcode = LIO_WRITE; + } + memset(&sig, 0, sizeof sig); + sig.sigev_notify = SIGEV_KEVENT; + sig.sigev_notify_kqueue = root->root_kq; + sig.sigev_value.sival_ptr = acb; + + 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 schedLIO(root, func, arg, (void*) acb, bufs, nbufs); +#endif /* KQ_SUPPORT */ +} +#endif /* EVFILT_LIO */ +#endif /* AIO_SUPPORT */ + +/* * schedTimer() - Add TIMER task to scheduler queue * * @root = root task @@ -680,10 +947,10 @@ schedTimer(sched_root_task_t * __restrict root, sched_ return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskTIMER; TASK_ROOT(task) = root; @@ -711,25 +978,21 @@ schedTimer(sched_root_task_t * __restrict root, sched_ ptr = NULL; if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskTIMER]); -#endif + SCHED_QLOCK(root, taskTIMER); #ifdef TIMER_WITHOUT_SORT - TAILQ_INSERT_TAIL(&root->root_timer, TASK_ID(task), task_node); + TAILQ_INSERT_TAIL(&root->root_timer, task, task_node); #else TAILQ_FOREACH_SAFE(t, &root->root_timer, task_node, tmp) if (sched_timespeccmp(&TASK_TS(task), &TASK_TS(t), -) < 1) break; if (!t) - TAILQ_INSERT_TAIL(&root->root_timer, TASK_ID(task), task_node); + TAILQ_INSERT_TAIL(&root->root_timer, task, task_node); else - TAILQ_INSERT_BEFORE(t, TASK_ID(task), task_node); + TAILQ_INSERT_BEFORE(t, task, task_node); #endif -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskTIMER]); -#endif + SCHED_QUNLOCK(root, taskTIMER); } else - task = _sched_unuseTask(task); + task = sched_unuseTask(task); return task; } @@ -756,10 +1019,10 @@ schedEvent(sched_root_task_t * __restrict root, sched_ return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskEVENT; TASK_ROOT(task) = root; @@ -774,71 +1037,67 @@ schedEvent(sched_root_task_t * __restrict root, sched_ else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskEVENT]); -#endif - TAILQ_INSERT_TAIL(&root->root_event, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskEVENT]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_event); + else + task = sched_unuseTask(task); return task; } /* - * 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) return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; - TASK_TYPE(task) = taskEVENT; + TASK_FUNC(task) = func; + 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]); -#endif - TAILQ_INSERT_TAIL(&root->root_eventlo, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskEVENTLO]); -#endif + SCHED_QLOCK(root, taskTASK); + 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, task_node); + else + TAILQ_INSERT_BEFORE(t, task, task_node); + SCHED_QUNLOCK(root, taskTASK); } else - task = _sched_unuseTask(task); + task = sched_unuseTask(task); return task; } @@ -865,10 +1124,10 @@ schedSuspend(sched_root_task_t * __restrict root, sche return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskSUSPEND; TASK_ROOT(task) = root; @@ -883,16 +1142,10 @@ schedSuspend(sched_root_task_t * __restrict root, sche else ptr = NULL; - if (!ptr) { -#ifdef HAVE_LIBPTHREAD - pthread_mutex_lock(&root->root_mtx[taskSUSPEND]); -#endif - TAILQ_INSERT_TAIL(&root->root_suspend, TASK_ID(task), task_node); -#ifdef HAVE_LIBPTHREAD - pthread_mutex_unlock(&root->root_mtx[taskSUSPEND]); -#endif - } else - task = _sched_unuseTask(task); + if (!ptr) + insert_task_to(task, &root->root_suspend); + else + task = sched_unuseTask(task); return task; } @@ -919,10 +1172,10 @@ schedCallOnce(sched_root_task_t * __restrict root, sch return NULL; /* get new task */ - if (!(task = _sched_useTask(root))) + if (!(task = sched_useTask(root))) return NULL; - task->task_func = func; + TASK_FUNC(task) = func; TASK_TYPE(task) = taskEVENT; TASK_ROOT(task) = root; @@ -934,6 +1187,133 @@ schedCallOnce(sched_root_task_t * __restrict root, sch ret = schedCall(task); - _sched_unuseTask(task); + sched_unuseTask(task); return ret; +} + +/* + * schedThread() - Add thread task to scheduler queue + * + * @root = root task + * @func = task execution function + * @arg = 1st func argument + * @ss = stack size + * @opt_data = Optional data + * @opt_dlen = Optional data length + * return: NULL error or !=NULL new queued task + */ +sched_task_t * +schedThread(sched_root_task_t * __restrict root, sched_task_func_t func, void *arg, + size_t ss, void *opt_data, size_t opt_dlen) +{ +#ifndef HAVE_LIBPTHREAD + sched_SetErr(ENOTSUP, "Not supported thread tasks"); + return NULL; +#endif + sched_task_t *task; + pthread_attr_t attr; + void *ptr; + + if (!root || !func) + return NULL; + + /* get new task */ + if (!(task = sched_useTask(root))) + return NULL; + + TASK_FUNC(task) = 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_CREATE_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; + +#ifdef SCHED_RR + pthread_attr_setschedpolicy(&attr, SCHED_RR); +#else + pthread_attr_setschedpolicy(&attr, SCHED_OTHER); +#endif + + if (root->root_hooks.hook_add.thread) + ptr = root->root_hooks.hook_add.thread(task, &attr); + else + ptr = NULL; + + if (!ptr) + insert_task_to(task, &root->root_thread); + else + task = sched_unuseTask(task); + + 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_LIBRT) && defined(HAVE_TIMER_CREATE) && \ + defined(HAVE_TIMER_SETTIME) && defined(HAVE_TIMER_DELETE) + sched_task_t *task; + void *ptr; + + if (!root || !func) + return NULL; + + /* get new task */ + if (!(task = sched_useTask(root))) + return NULL; + + TASK_FUNC(task) = 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) + insert_task_to(task, &root->root_rtc); + else + task = sched_unuseTask(task); + + return task; +#else + sched_SetErr(ENOTSUP, "Not supported realtime clock extensions"); + return NULL; +#endif }