#include "libnazgul.h"

int msgQueueDelete(msgQueueId externId, int queueIdx)
{
	msgQueue *queue;
	msgQueueId queueId;
	msgQueueSemId queueProtLockSemId;
	msgQueueSemId queueReadLockSemId;

	msgQueueIdIntern(queueId, externId, queueIdx);
	queue = msgQueueOpen(queueId);

	if (strcmp(queue->headId, queue->id) != 0) {
		// liste non-vide
		if (msgQueueElemDelete(queue->headId) < 0) {
			NZG_ERROR("msgQueueElemDelete", queue->headId);
			goto ERROR;
		}
	}

	msgQueueProtSemIdIntern(queueProtLockSemId, externId, queueIdx);
	msgQueueReadSemIdIntern(queueReadLockSemId, externId, queueIdx);
	sem_unlink(queueProtLockSemId);
	sem_unlink(queueReadLockSemId);

	if (shm_unlink(queueId) < 0) {
		NZG_ERROR("shm_unlink msgQueueElem", queueId);
		goto ERROR;
	}

	return 0;
 ERROR:
	return -1;
}