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* fonction pour debloquer le semaphore

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rivka_zan 2004-02-22 19:02:34 +00:00 committed by Glenn Y. Rolland
parent 6272f135ed
commit 302fbaff09
1 changed files with 15 additions and 13 deletions
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30
src/nzg_msgList.c
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@ -30,18 +30,18 @@ int msgSpaceListAdd(msgSpaceListElemId );
int msgSpaceListRem(msgSpaceListElemId spaceId); int msgSpaceListRem(msgSpaceListElemId spaceId);
char *spaceList; char *spaceList;
int msgSpaceListLock(){
char *spaceList;
/*Pose d'un semafore*/
sem_t * sem; sem_t * sem;
if((int)sem=sem_open(spaceList,O_CREAT|O_EXCL, 0666,10) ==-1){
int msgSpaceListLock(){
/*Ouverture d'un verrou d'un semafore*/
if((int)sem=sem_open(spaceList,O_CREAT|O_EXCL, 0666,1024) ==-1){
printf("erreur de semaphore"); printf("erreur de semaphore");
return -1; return -1;
} }
/*Pose d'un semafore et bloque*/
if(sem_wait(sem)==-1){ if(sem_wait(sem)==-1){
printf("erreur pour l'ajout d'un semaphore"); printf("erreur pour l'ajout d'un semaphore");
return -1; return -1;
@ -50,18 +50,20 @@ int msgSpaceListLock(){
} }
/*int msgSpaceListUnlock(){ int msgSpaceListUnlock(){
Ferme le semaphore /* Ferme le semaphore*/
int semClose; if(sem_close(sem)==-1){
if(semClose=sem_close(spaceList) )==-1{ printf("erreur sem_close");
printf("erreur"); return -1;
}
/*semaphore non bloquant*/
if (sem_trywait(sem)==-1){
printf("erreur sem_trywait");
return -1; return -1;
} }
return 0; return 0;
}; };
*/