#ifdef _NZG_HPUX
#include <sys/wait.h>
#else
#include <wait.h>
#endif

#include "libnazgul.h"

void usage(char *myname)
{
	printf("Usage: %s [--all | msgSpaceId1 msgSpaceId2 ... ]\n", myname);
}

int about(char *spaceId)
{
	msgPoolDataTabSemId ressourceSemId;
	sem_t *ressourceSemFd;
	int i;
	msgPoolData *poolDataTab;
	msgSpace *space;
	int ressourceSemVal;
	if (strlen(spaceId) > MSGSPACE_ID_LEN) {
		//verif de la longueur
		fprintf(stderr, "Too long ident : %s\n", spaceId);
		goto ERROR;
	} else {
		int err;
		msgSpaceListLock();
		err = msgSpaceListFindId(spaceId);
		msgSpaceListUnlock();
		if (err < 1) {
			if (err == 0) {
				// le msgSpace existe
				space = msgSpaceOpen(spaceId);
				// on lit les informations sur le msgSpace
				// les pool
				for (i = 0; i < space->poolNb; i++) {
					msgPoolSemIdIntern(ressourceSemId,
							   space->externId, i);
					ressourceSemFd =
					    sem_open(ressourceSemId, O_CREAT,
						     SEM_DEFAULT_MODE, 0);
					if (ressourceSemFd == SEM_FAILED) {
						NZG_ERROR("sem_open",
							  ressourceSemId);
						goto ERROR;
					}
					if (sem_getvalue
					    (ressourceSemFd,
					     &ressourceSemVal) < 0) {
						NZG_ERROR("sem_getvalue",
							  ressourceSemId);
						goto ERROR;
					}
					msgPoolDataTabLock(space);
					poolDataTab = msgPoolDataTabOpen(space);
					// donner le nombre de buffer disponibles
					printf
					    ("- %d/%d free buffers in pool #%d\n",
					     ressourceSemVal,
					     poolDataTab[i].bufferNb, i);
					msgPoolDataTabClose(space, poolDataTab);
					msgPoolDataTabUnlock(space);
					if (sem_close(ressourceSemFd) < 0) {
						NZG_ERROR("sem_getvalue",
							  ressourceSemId);
						goto ERROR;
					}
					// pour chaque buffer, dire s'il est libre ou pas
					// et le processus/addresse associé
				}
				msgSpaceClose(space);
			} else {
				// zut, il y a soit une erreur
				NZG_ERROR("spaceListFindId : error ", spaceId);
			}
		} else {
			// on quitte : l'element n'existe
			fprintf(stderr, "Ident %s does not exist.\n", spaceId);
		}
	}
	return 0;
 ERROR:
	return -1;
}

int main(int argc, char **argv)
{
	printf("Args %d\n", argc);
	if (argc < 2) {
		usage(argv[0]);
	} else {
		if (argc == 2) {
			if (strcmp("--all", argv[1]) == 0) {
				// listing
				printf("[ Listing of msgSpaces ]\n");
			} else {
				// only one msgSpaceId
				printf("[ About %s ]\n", argv[1]);
				about(argv[1]);
			}
		} else {
			int i;
			for (i = 1; i < argc; i++) {
				printf("[ About %s ]\n", argv[i]);
				about(argv[i]);
			}
		}
	}
	return 0;
}