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dpavlin |
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* HT Editor |
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* systhread.cc |
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* |
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* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net) |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <cstdlib> |
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#include <cerrno> |
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#include <sys/time.h> |
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#include <pthread.h> |
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#include "system/systhread.h" |
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#ifdef HAVE_MACH_CLOCK_H |
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#include <mach/clock.h> |
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static mach_port_t clock_port; |
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#endif |
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struct sys_pthread_semaphore { |
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pthread_mutex_t mutex; |
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pthread_cond_t cond; |
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}; |
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int sys_create_mutex(sys_mutex *m) |
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{ |
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*m = (pthread_mutex_t *)malloc(sizeof (pthread_mutex_t)); |
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return pthread_mutex_init((pthread_mutex_t *)*m, NULL); |
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} |
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int sys_create_semaphore(sys_semaphore *s) |
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{ |
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*s = (sys_pthread_semaphore *)malloc(sizeof (sys_pthread_semaphore)); |
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pthread_mutex_init(&((sys_pthread_semaphore*)*s)->mutex, NULL); |
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return pthread_cond_init(&((sys_pthread_semaphore*)*s)->cond, NULL); |
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} |
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int sys_create_thread(sys_thread *t, int flags, sys_thread_function start_routine, void *arg) |
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{ |
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*t = (pthread_t *)malloc(sizeof (pthread_t)); |
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return pthread_create((pthread_t *)*t, 0, start_routine, arg); |
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} |
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void sys_destroy_mutex(sys_mutex m) |
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{ |
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pthread_mutex_destroy((pthread_mutex_t *)m); |
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free(m); |
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} |
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void sys_destroy_semaphore(sys_semaphore s) |
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{ |
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pthread_mutex_destroy(&((sys_pthread_semaphore*)s)->mutex); |
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pthread_cond_destroy(&((sys_pthread_semaphore*)s)->cond); |
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free(s); |
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} |
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void sys_destroy_thread(sys_thread t) |
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{ |
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// NOOP for pthreads |
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} |
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int sys_lock_mutex(sys_mutex m) |
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{ |
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return pthread_mutex_lock((pthread_mutex_t*)m); |
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} |
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int sys_trylock_mutex(sys_mutex m) |
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{ |
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return pthread_mutex_trylock((pthread_mutex_t*)m); |
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} |
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void sys_unlock_mutex(sys_mutex m) |
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{ |
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pthread_mutex_unlock((pthread_mutex_t*)m); |
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} |
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void sys_signal_semaphore(sys_semaphore s) |
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{ |
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pthread_cond_signal(&((sys_pthread_semaphore*)s)->cond); |
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} |
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void sys_signal_all_semaphore(sys_semaphore s) |
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{ |
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pthread_cond_broadcast(&((sys_pthread_semaphore*)s)->cond); |
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} |
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void sys_wait_semaphore(sys_semaphore s) |
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{ |
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pthread_cond_wait(&((sys_pthread_semaphore*)s)->cond, &((sys_pthread_semaphore*)s)->mutex); |
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} |
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void sys_wait_semaphore_bounded(sys_semaphore s, int ms) |
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{ |
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struct timespec ts; |
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uint64 nsec; |
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#ifdef HAVE_MACH_CLOCK_H |
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mach_timespec_t ts2; |
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clock_get_time(clock_port, &ts2); |
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nsec = (ts2.tv_nsec + ((uint64)ms)*1000*1000); |
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ts.tv_sec = ts2.tv_sec+(uint)(nsec/1000000000); |
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ts.tv_nsec = (nsec % 1000000000ULL); |
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#else |
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clock_gettime(CLOCK_REALTIME, &ts); |
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nsec = (ts.tv_nsec + ((uint64)ms)*1000*1000); |
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ts.tv_sec = ts.tv_sec+(uint)(nsec/1000000000); |
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ts.tv_nsec = (nsec % 1000000000ULL); |
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#endif |
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pthread_cond_timedwait(&((sys_pthread_semaphore*)s)->cond, &((sys_pthread_semaphore*)s)->mutex, &ts); |
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} |
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void sys_lock_semaphore(sys_semaphore s) |
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{ |
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pthread_mutex_lock(&((sys_pthread_semaphore*)s)->mutex); |
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} |
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void sys_unlock_semaphore(sys_semaphore s) |
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{ |
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pthread_mutex_unlock(&((sys_pthread_semaphore*)s)->mutex); |
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} |
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void sys_exit_thread(void *ret) |
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{ |
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pthread_exit(ret); |
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} |
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void *sys_join_thread(sys_thread t) |
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{ |
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void *ret; |
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pthread_join(*(pthread_t *)t, &ret); |
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return ret; |
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} |