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>
This commit is contained in:
Paolo Bonzini 2011-03-12 17:43:52 +01:00 committed by Blue Swirl
parent b7680cb607
commit 9257d46d55
6 changed files with 313 additions and 17 deletions

View file

@ -1,24 +1,16 @@
#ifndef __QEMU_THREAD_H
#define __QEMU_THREAD_H 1
#include "semaphore.h"
#include "pthread.h"
struct QemuMutex {
pthread_mutex_t lock;
};
struct QemuCond {
pthread_cond_t cond;
};
struct QemuThread {
pthread_t thread;
};
typedef struct QemuMutex QemuMutex;
typedef struct QemuCond QemuCond;
typedef struct QemuThread QemuThread;
#ifdef _WIN32
#include "qemu-thread-win32.h"
#else
#include "qemu-thread-posix.h"
#endif
void qemu_mutex_init(QemuMutex *mutex);
void qemu_mutex_destroy(QemuMutex *mutex);
void qemu_mutex_lock(QemuMutex *mutex);
@ -28,6 +20,12 @@ void qemu_mutex_unlock(QemuMutex *mutex);
void qemu_cond_init(QemuCond *cond);
void qemu_cond_destroy(QemuCond *cond);
/*
* IMPORTANT: The implementation does not guarantee that pthread_cond_signal
* and pthread_cond_broadcast can be called except while the same mutex is
* held as in the corresponding pthread_cond_wait calls!
*/
void qemu_cond_signal(QemuCond *cond);
void qemu_cond_broadcast(QemuCond *cond);
void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex);
@ -36,7 +34,6 @@ int qemu_cond_timedwait(QemuCond *cond, QemuMutex *mutex, uint64_t msecs);
void qemu_thread_create(QemuThread *thread,
void *(*start_routine)(void*),
void *arg);
void qemu_thread_signal(QemuThread *thread, int sig);
void qemu_thread_get_self(QemuThread *thread);
int qemu_thread_is_self(QemuThread *thread);
void qemu_thread_exit(void *retval);