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Lecture 10 Locks

Lecture 10 Locks. Scheduling Control: Mutex /Lock. Basic pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; pthread_mutex_lock (&lock); x = x + 1; // or whatever your critical section is pthread_mutex_unlock (&lock); Other variants int pthread_mutex_trylock ( pthread_mutex_t * mutex );

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Uniprocessor Locks, v1

void lock_acquire(struct lock *l) { while (1) { Disable interrupts; if (!l->locked) { l->locked = 1; Enable interrupts; return; } Enable interrupts; } } void lock_release(struct lock *l) {

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Void lock - PowerPoint PPT Presentation

Lecture 10 Locks

Uniprocessor Locks, v1