#include "libnazgul.h"
#include "ids.h"

#define DEBUG 0

int msgPoolDataTabLock(msgSpace * space)
{
	int semval;
	sem_t *poolDataTabSemFd;
	semval = 0;
	if (DEBUG) {
		printf("Locking %s\n", space->poolDataTabSemId);
	}

	poolDataTabSemFd = sem_open(space->poolDataTabSemId, O_CREAT,
				    SEM_DEFAULT_MODE, 1);
	if (poolDataTabSemFd == SEM_FAILED) {
		NZG_ERROR("sem_open", space->poolDataTabSemId);
		goto ERROR;
	}

	if (sem_wait(poolDataTabSemFd) == -1) {
		NZG_ERROR("sem_wait", space->poolDataTabSemId);
		goto ERROR;
	}

	sem_getvalue(poolDataTabSemFd, &semval);
	if (DEBUG) {
		printf("(AfternValue:%d)\n", semval);
	}

	sem_close(poolDataTabSemFd);

	return 0;
 ERROR:
	return -1;
}