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authorPaolo Bonzini <pbonzini@redhat.com>2011-03-12 17:43:52 +0100
committerBlue Swirl <blauwirbel@gmail.com>2011-03-13 14:44:21 +0000
commit9257d46d55f1fe4e8209be9a6870e339ac3266fe (patch)
tree097b8459e69df0da2b17fcd67d44c84fdfc2de63 /qemu-thread.c
parentRefactor thread retrieval and check (diff)
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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 <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'qemu-thread.c')
-rw-r--r--qemu-thread.c192
1 files changed, 0 insertions, 192 deletions
diff --git a/qemu-thread.c b/qemu-thread.c
deleted file mode 100644
index e3077733f..000000000
--- a/qemu-thread.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * Wrappers around mutex/cond/thread functions
- *
- * Copyright Red Hat, Inc. 2009
- *
- * Author:
- * Marcelo Tosatti <mtosatti@redhat.com>
- *
- * 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 <stdlib.h>
-#include <stdio.h>
-#include <errno.h>
-#include <time.h>
-#include <signal.h>
-#include <stdint.h>
-#include <string.h>
-#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);
-}