queue.h con productores

#ifndef __QUEUE_H__
#define __QUEUE_H__

typedef struct _queue *queue;

queue q_create(int size);            // Create a new queue
int   q_elements(queue q);             // number of elements in a queue
int   q_insert(queue q, void *elem); // insert an element into a queue
void *q_remove(queue q);             // remove an element from the queue
void  q_destroy(queue q);             // destroy a queue.
mtx_t * q_mutex(queue q);
cnd_t *q_empty(queue q);
cnd_t *q_full(queue q);
int q_size(queue q);

#endif