int pthread_spin_trylock(pthread_spinlock_t *lock)向OS申请自旋锁*lock,成功获得后返回0,z执行后续语句;若不能立即获得,则返回一个常量EBUSY,继续执行另一个分支的后续语句。 int pthread_spin_unlock(pthread_spinlock_t *lock)向OS归还自旋锁*lock,若自旋锁的queue 非空,则从中选择一个线程,恢复所选择线程...
mutex互斥锁是一种同步机制，用于保护共享资源免受并发访问的影响。当一个线程执行开锁操作后，其他线程只能在队列非空时恢复执行，或者当前线程将锁的状态设为开锁，继续执行。rwlock读写锁是一种并发控制机制，允许多个线程同时读取共享资源，但同一时刻仅允许一个线程进行写操作。原子操作函数，如`__sync...
(1)Mutex适合对锁操作非常频繁的场景,并且具有更好的适应性。尽管相比spin lock它会花费更多的开销(主要是上下文切换),但是它能适合实际开发中复杂的应用场景,在保证一定性能的前提下提供更大的灵活度。 (2)spin lock的lock/unlock性能更好(花费更少的cpu指令),但是它只适应用于临界区运行时间很短的场景。而在实...
__mutex_lock_common Lock a mutex (possibly interruptible), slowpath: __mutex_unlock_slowpath torture_spin_lock_write_lock kcmp_epoll_target posix_timer_add SYSCALL_DEFINE1 Delete a POSIX.1b interval timer. run_posix_cpu_timers This is called from the timer interrupt handler. The irq...
Функция KeInitializeMutex Функция KeInitializeSemaphore Функция KeInitializeSpinLock Функция KeInitializeThreadedDpc Функция KeInitializeTimer Функция KeInitializeTimerEx Функция KeInsertByKeyDeviceQueue Функция KeInsertDeviceQueue Фу...
}/* allocate urb sema */dio_sema = kmalloc(sizeof(struct semaphore), GFP_KERNEL);if(dio_sema ==NULL) {return-ENOMEM; } init_MUTEX(dio_sema);/* initialize & zero the device structure */device = (adv_device *) kmalloc(sizeof(adv_device), GFP_KERNEL);if(device ==NULL) { ...
KeInitializeGuardedMutex, fonction KeInitializeMutex, fonction KeInitializeSemaphore, fonction KeInitializeSpinLock, fonction KeInitializeThreadedDpc, fonction KeInitializeTimer, fonction KeInitializeTimerEx, fonction KeInsertByKeyDeviceQueue, fonction KeInsertDeviceQueue, fonction KeInsertQueueDpc, fonction KeIpiGe...
pthread_mutex_init(3C) pthread_mutex_lock(3C) pthread_mutex_reltimedlock_np(3C) pthread_mutex_setprioceiling(3C) pthread_mutex_timedlock(3C) pthread_mutex_trylock(3C) pthread_mutex_unlock(3C) pthread_mutexattr_destroy(3C) pthread_mutexattr_getprioceiling(3C) pthread_mutexattr_getprotocol(3C) ...
KeReadStateMutex-Funktion KeReadStateSemaphore-Funktion KeReadStateTimer-Funktion KeRegisterBoundCallback-Funktion KeRegisterBugCheckCallback-Funktion KeRegisterBugCheckReasonCallback-Funktion KeRegisterNmiCallback-Funktion KeRegisterProcessorChangeCallback-Funktion KeReleaseGuardedMutex-Funktion KeReleaseGuardedMute...
Fonction KeInitializeGuardedMutex Fonction KeInitializeMutex Fonction KeInitializeSemaphore Fonction KeInitializeSpinLock KeInitializeThreadedDpc, fonction KeInitializeTimer, fonction KeInitializeTimerEx, fonction KeInsertByKeyDeviceQueue, fonction KeInsertDeviceQueue, fonction KeInsertQueueDpc, fonction KeIpiGenericCa...