qemu-thread.h

   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 QemuThread QemuThread;
  11
  12 #ifdef _WIN32
  13 #include "qemu-thread-win32.h"
  14 #else
  15 #include "qemu-thread-posix.h"
  16 #endif
  17
  18 #define QEMU_THREAD_JOINABLE 0
  19 #define QEMU_THREAD_DETACHED 1
  20
  21 void qemu_mutex_init(QemuMutex *mutex);
  22 void qemu_mutex_destroy(QemuMutex *mutex);
  23 void qemu_mutex_lock(QemuMutex *mutex);
  24 int qemu_mutex_trylock(QemuMutex *mutex);
  25 void qemu_mutex_unlock(QemuMutex *mutex);
  26
  27 #define rcu_read_lock() do { } while (0)
  28 #define rcu_read_unlock() do { } while (0)
  29
  30 void qemu_cond_init(QemuCond *cond);
  31 void qemu_cond_destroy(QemuCond *cond);
  32
  33 /*
  34  * IMPORTANT: The implementation does not guarantee that pthread_cond_signal
  35  * and pthread_cond_broadcast can be called except while the same mutex is
  36  * held as in the corresponding pthread_cond_wait calls!
  37  */
  38 void qemu_cond_signal(QemuCond *cond);
  39 void qemu_cond_broadcast(QemuCond *cond);
  40 void qemu_cond_wait(QemuCond *cond, QemuMutex *mutex);
  41
  42 void qemu_sem_init(QemuSemaphore *sem, int init);
  43 void qemu_sem_post(QemuSemaphore *sem);
  44 void qemu_sem_wait(QemuSemaphore *sem);
  45 int qemu_sem_timedwait(QemuSemaphore *sem, int ms);
  46 void qemu_sem_destroy(QemuSemaphore *sem);
  47
  48 void qemu_thread_create(QemuThread *thread,
  49                         void *(*start_routine)(void *),
  50                         void *arg, int mode);
  51 void *qemu_thread_join(QemuThread *thread);
  52 void qemu_thread_get_self(QemuThread *thread);
  53 bool qemu_thread_is_self(QemuThread *thread);
  54 void qemu_thread_exit(void *retval);
  55
  56 #endif