1 #ifndef __QEMU_THREAD_H 2 #define __QEMU_THREAD_H 1 3 4 #include <inttypes.h> 5 #include <stdbool.h> 6 7 typedef struct QemuMutex QemuMutex; 8 typedef struct QemuCond QemuCond; 9 typedef struct QemuSemaphore QemuSemaphore; 10 typedef struct QemuEvent QemuEvent; 11 typedef struct QemuThread QemuThread; 12 13 #ifdef _WIN32 14 #include "qemu/thread-win32.h" 15 #else 16 #include "qemu/thread-posix.h" 17 #endif 18 19 #define QEMU_THREAD_JOINABLE 0 20 #define QEMU_THREAD_DETACHED 1 21 22 void qemu_mutex_init(QemuMutex *mutex); 23 void qemu_mutex_destroy(QemuMutex *mutex); 24 void qemu_mutex_lock(QemuMutex *mutex); 25 int qemu_mutex_trylock(QemuMutex *mutex); 26 int qemu_mutex_timedlock(QemuMutex *mutex, uint64_t msecs); 27 void qemu_mutex_unlock(QemuMutex *mutex); 28 29 #define rcu_read_lock() do { } while (0) 30 #define rcu_read_unlock() do { } while (0) 31 32 void qemu_cond_init(QemuCond *cond); 33 void qemu_cond_destroy(QemuCond *cond); 34 35 /* 36 * IMPORTANT: The implementation does not guarantee that pthread_cond_signal 37 * and pthread_cond_broadcast can be called except while the same mutex is 38 * held as in the corresponding pthread_cond_wait calls! 39 */ 40 void qemu_cond_signal(QemuCond *cond); 41 void qemu_cond_broadcast(QemuCond *cond); 42 void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex); 43 int qemu_cond_timedwait(QemuCond *cond, QemuMutex *mutex, uint64_t msecs); 44 45 void qemu_sem_init(QemuSemaphore *sem, int init); 46 void qemu_sem_post(QemuSemaphore *sem); 47 void qemu_sem_wait(QemuSemaphore *sem); 48 int qemu_sem_timedwait(QemuSemaphore *sem, int ms); 49 void qemu_sem_destroy(QemuSemaphore *sem); 50 51 void qemu_event_init(QemuEvent *ev, bool init); 52 void qemu_event_set(QemuEvent *ev); 53 void qemu_event_reset(QemuEvent *ev); 54 void qemu_event_wait(QemuEvent *ev); 55 void qemu_event_destroy(QemuEvent *ev); 56 57 void qemu_thread_create(QemuThread *thread, 58 void *(*start_routine)(void *), 59 void *arg, int mode); 60 void *qemu_thread_join(QemuThread *thread); 61 void qemu_thread_get_self(QemuThread *thread); 62 bool qemu_thread_is_self(QemuThread *thread); 63 void qemu_thread_exit(void *retval); 64 65 #endif 66
