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#include "task_queue.h"
#include <stdlib.h>
void TaskQueue_init(TaskQueue *self, int capacity) {
self->tasks = malloc(sizeof(TaskFn) * capacity);
self->args = malloc(sizeof(void*) * capacity);
self->capacity = capacity;
self->front = 0;
self->end = 0;
self->size = 0;
pthread_mutex_init(&self->lock, NULL);
pthread_cond_init(&self->not_full, NULL);
pthread_cond_init(&self->not_empty, NULL);
}
void TaskQueue_destroy(TaskQueue *self) {
free(self->tasks);
free(self->args);
pthread_mutex_destroy(&self->lock);
pthread_cond_destroy(&self->not_full);
pthread_cond_destroy(&self->not_empty);
}
void TaskQueue_push(TaskQueue *self, TaskFn task, void *arg) {
pthread_mutex_lock(&self->lock);
while (self->size == self->capacity) {
pthread_cond_wait(&self->not_full, &self->lock);
}
self->tasks[self->end] = task;
self->args[self->end] = arg;
self->end = (self->end + 1) % self->capacity;
self->size++;
pthread_cond_signal(&self->not_empty);
pthread_mutex_unlock(&self->lock);
}
void TaskQueue_pop(TaskQueue *self, TaskFn *task, void **arg) {
pthread_mutex_lock(&self->lock);
while (self->size == 0) {
pthread_cond_wait(&self->not_empty, &self->lock);
}
*task = self->tasks[self->front];
*arg = self->args[self->front];
self->front = (self->front + 1) % self->capacity;
self->size--;
pthread_cond_signal(&self->not_full);
pthread_mutex_unlock(&self->lock);
}
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