66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#include "libnazgul.h"
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// verouille le semaphore de la liste
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int msgSpaceListLock()
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{
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sem_t *msgSpaceListSemFd;
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msgSpaceListSemId spaceListSemId;
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strcpy(spaceListSemId, DEFAULT_MSGSPACELISTSEMID);
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/* Ouverture d'un semafore */
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msgSpaceListSemFd = sem_open(spaceListSemId, O_CREAT, 0666, 1);
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if (msgSpaceListSemFd == SEM_FAILED) {
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NZG_ERROR("sem_open", spaceListSemId);
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goto ERROR;
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}
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/* Pose d'un semaphore et le verrouille */
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if (sem_wait(msgSpaceListSemFd) == -1) {
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NZG_ERROR("sem_wait", spaceListSemId);
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goto ERROR;
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}
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/* Ferme le semaphore */
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/* if(sem_close(msgSpaceListSemFd)==-1){
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NZG_ERROR("sem_close",spaceListSemId);
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return -1;
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} */
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sem_close(msgSpaceListSemFd);
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return 0;
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ERROR:
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return -1;
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}
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// deverouille le semaphore de la liste
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int msgSpaceListUnlock()
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{
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sem_t *msgSpaceListSemFd;
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msgSpaceListSemId spaceListSemId;
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strcpy(spaceListSemId, DEFAULT_MSGSPACELISTSEMID);
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/*Ouverture dun semaphore */
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msgSpaceListSemFd = sem_open(spaceListSemId, O_CREAT, 0666, 0);
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if (msgSpaceListSemFd == SEM_FAILED) {
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NZG_ERROR("sem_open", spaceListSemId);
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goto ERROR;
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}
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/*Relachement du semaphore */
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if (sem_post(msgSpaceListSemFd) == -1) {
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NZG_ERROR("sem_relache", spaceListSemId);
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goto ERROR;
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}
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/* Ferme le semaphore */
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if (sem_close(msgSpaceListSemFd) == -1) {
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NZG_ERROR("sem_close", spaceListSemId);
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goto ERROR;
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}
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return 0;
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ERROR:
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return -1;
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};
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