70 lines
1.4 KiB
C
70 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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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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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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