#include "lock.h"

bool lock_init(struct lock_t* lock) {
    return pthread_mutex_init(&(lock->mutex), NULL) == 0
        && pthread_cond_init(&(lock->cv), NULL) == 0;
}

void lock_cleanup(struct lock_t* lock) {
    pthread_mutex_destroy(&(lock->mutex));
    pthread_cond_destroy(&(lock->cv));
}

bool lock_acquire(struct lock_t* lock) {
    return pthread_mutex_lock(&(lock->mutex)) == 0;
}

void lock_release(struct lock_t* lock) {
    pthread_mutex_unlock(&(lock->mutex));
}

void lock_wait(struct lock_t* lock) {
    pthread_cond_wait(&(lock->cv), &(lock->mutex));
}

void lock_wake_up(struct lock_t* lock) {
    pthread_cond_broadcast(&(lock->cv));
}