xref: /qemu/include/qemu/thread.h (revision 4f7ab0cd)
1 #ifndef __QEMU_THREAD_H
2 #define __QEMU_THREAD_H 1
3 
4 
5 typedef struct QemuMutex QemuMutex;
6 typedef struct QemuCond QemuCond;
7 typedef struct QemuSemaphore QemuSemaphore;
8 typedef struct QemuEvent QemuEvent;
9 typedef struct QemuThread QemuThread;
10 
11 #ifdef _WIN32
12 #include "qemu/thread-win32.h"
13 #else
14 #include "qemu/thread-posix.h"
15 #endif
16 
17 #define QEMU_THREAD_JOINABLE 0
18 #define QEMU_THREAD_DETACHED 1
19 
20 void qemu_mutex_init(QemuMutex *mutex);
21 void qemu_mutex_destroy(QemuMutex *mutex);
22 void qemu_mutex_lock(QemuMutex *mutex);
23 int qemu_mutex_trylock(QemuMutex *mutex);
24 void qemu_mutex_unlock(QemuMutex *mutex);
25 
26 void qemu_cond_init(QemuCond *cond);
27 void qemu_cond_destroy(QemuCond *cond);
28 
29 /*
30  * IMPORTANT: The implementation does not guarantee that pthread_cond_signal
31  * and pthread_cond_broadcast can be called except while the same mutex is
32  * held as in the corresponding pthread_cond_wait calls!
33  */
34 void qemu_cond_signal(QemuCond *cond);
35 void qemu_cond_broadcast(QemuCond *cond);
36 void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex);
37 
38 void qemu_sem_init(QemuSemaphore *sem, int init);
39 void qemu_sem_post(QemuSemaphore *sem);
40 void qemu_sem_wait(QemuSemaphore *sem);
41 int qemu_sem_timedwait(QemuSemaphore *sem, int ms);
42 void qemu_sem_destroy(QemuSemaphore *sem);
43 
44 void qemu_event_init(QemuEvent *ev, bool init);
45 void qemu_event_set(QemuEvent *ev);
46 void qemu_event_reset(QemuEvent *ev);
47 void qemu_event_wait(QemuEvent *ev);
48 void qemu_event_destroy(QemuEvent *ev);
49 
50 void qemu_thread_create(QemuThread *thread, const char *name,
51                         void *(*start_routine)(void *),
52                         void *arg, int mode);
53 void *qemu_thread_join(QemuThread *thread);
54 void qemu_thread_get_self(QemuThread *thread);
55 bool qemu_thread_is_self(QemuThread *thread);
56 void qemu_thread_exit(void *retval);
57 void qemu_thread_naming(bool enable);
58 
59 struct Notifier;
60 void qemu_thread_atexit_add(struct Notifier *notifier);
61 void qemu_thread_atexit_remove(struct Notifier *notifier);
62 
63 #endif
64