From 9257d46d55f1fe4e8209be9a6870e339ac3266fe Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Sat, 12 Mar 2011 17:43:52 +0100 Subject: add win32 qemu-thread implementation For now, qemu_cond_timedwait and qemu_mutex_timedlock are left as POSIX-only functions. They can be removed later, once the patches that remove their uses are in. Signed-off-by: Paolo Bonzini Signed-off-by: Blue Swirl --- qemu-thread.c | 192 ---------------------------------------------------------- 1 file changed, 192 deletions(-) delete mode 100644 qemu-thread.c (limited to 'qemu-thread.c') diff --git a/qemu-thread.c b/qemu-thread.c deleted file mode 100644 index e3077733fc..0000000000 --- a/qemu-thread.c +++ /dev/null @@ -1,192 +0,0 @@ -/* - * Wrappers around mutex/cond/thread functions - * - * Copyright Red Hat, Inc. 2009 - * - * Author: - * Marcelo Tosatti - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ -#include -#include -#include -#include -#include -#include -#include -#include "qemu-thread.h" - -static void error_exit(int err, const char *msg) -{ - fprintf(stderr, "qemu: %s: %s\n", msg, strerror(err)); - exit(1); -} - -void qemu_mutex_init(QemuMutex *mutex) -{ - int err; - - err = pthread_mutex_init(&mutex->lock, NULL); - if (err) - error_exit(err, __func__); -} - -void qemu_mutex_destroy(QemuMutex *mutex) -{ - int err; - - err = pthread_mutex_destroy(&mutex->lock); - if (err) - error_exit(err, __func__); -} - -void qemu_mutex_lock(QemuMutex *mutex) -{ - int err; - - err = pthread_mutex_lock(&mutex->lock); - if (err) - error_exit(err, __func__); -} - -int qemu_mutex_trylock(QemuMutex *mutex) -{ - return pthread_mutex_trylock(&mutex->lock); -} - -static void timespec_add_ms(struct timespec *ts, uint64_t msecs) -{ - ts->tv_sec = ts->tv_sec + (long)(msecs / 1000); - ts->tv_nsec = (ts->tv_nsec + ((long)msecs % 1000) * 1000000); - if (ts->tv_nsec >= 1000000000) { - ts->tv_nsec -= 1000000000; - ts->tv_sec++; - } -} - -int qemu_mutex_timedlock(QemuMutex *mutex, uint64_t msecs) -{ - int err; - struct timespec ts; - - clock_gettime(CLOCK_REALTIME, &ts); - timespec_add_ms(&ts, msecs); - - err = pthread_mutex_timedlock(&mutex->lock, &ts); - if (err && err != ETIMEDOUT) - error_exit(err, __func__); - return err; -} - -void qemu_mutex_unlock(QemuMutex *mutex) -{ - int err; - - err = pthread_mutex_unlock(&mutex->lock); - if (err) - error_exit(err, __func__); -} - -void qemu_cond_init(QemuCond *cond) -{ - int err; - - err = pthread_cond_init(&cond->cond, NULL); - if (err) - error_exit(err, __func__); -} - -void qemu_cond_destroy(QemuCond *cond) -{ - int err; - - err = pthread_cond_destroy(&cond->cond); - if (err) - error_exit(err, __func__); -} - -void qemu_cond_signal(QemuCond *cond) -{ - int err; - - err = pthread_cond_signal(&cond->cond); - if (err) - error_exit(err, __func__); -} - -void qemu_cond_broadcast(QemuCond *cond) -{ - int err; - - err = pthread_cond_broadcast(&cond->cond); - if (err) - error_exit(err, __func__); -} - -void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex) -{ - int err; - - err = pthread_cond_wait(&cond->cond, &mutex->lock); - if (err) - error_exit(err, __func__); -} - -int qemu_cond_timedwait(QemuCond *cond, QemuMutex *mutex, uint64_t msecs) -{ - struct timespec ts; - int err; - - clock_gettime(CLOCK_REALTIME, &ts); - timespec_add_ms(&ts, msecs); - - err = pthread_cond_timedwait(&cond->cond, &mutex->lock, &ts); - if (err && err != ETIMEDOUT) - error_exit(err, __func__); - return err; -} - -void qemu_thread_create(QemuThread *thread, - void *(*start_routine)(void*), - void *arg) -{ - int err; - - /* Leave signal handling to the iothread. */ - sigset_t set, oldset; - - sigfillset(&set); - pthread_sigmask(SIG_SETMASK, &set, &oldset); - err = pthread_create(&thread->thread, NULL, start_routine, arg); - if (err) - error_exit(err, __func__); - - pthread_sigmask(SIG_SETMASK, &oldset, NULL); -} - -void qemu_thread_signal(QemuThread *thread, int sig) -{ - int err; - - err = pthread_kill(thread->thread, sig); - if (err) - error_exit(err, __func__); -} - -void qemu_thread_get_self(QemuThread *thread) -{ - thread->thread = pthread_self(); -} - -int qemu_thread_is_self(QemuThread *thread) -{ - return pthread_equal(pthread_self(), thread->thread); -} - -void qemu_thread_exit(void *retval) -{ - pthread_exit(retval); -} -- cgit v1.2.3