glenux-school/l3.libnazgul
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*fonction msgListLock

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This commit is contained in:
rivka_zan 2004-02-22 18:43:20 +00:00
parent 69859781d5
commit ee56f15390
1 changed files with 72 additions and 25 deletions
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63
src/nzg_msgList.c
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@ -29,11 +29,51 @@ int msgSpaceListElemLinkNext(msgSpaceListElemId current,msgSpaceListElemId next)
int msgSpaceListAdd(msgSpaceListElemId );
int msgSpaceListRem(msgSpaceListElemId spaceId);
char *spaceList;
void *add(char * idAncien, char *idNouveau);
int descMemory;
int msgSpaceListLock(){
char *spaceList;
/*Pose d'un semafore*/
sem_t * sem;
void * add(char * idAncien, char *idNouveau){
if((int)sem=sem_open(spaceList,O_CREAT|O_EXCL, 0666,10) ==-1){
printf("erreur de semaphore");
return -1;
}
if(sem_wait(sem)==-1){
printf("erreur pour l'ajout d'un semaphore");
return -1;
}
return 0;
}
/*int msgSpaceListUnlock(){
Ferme le semaphore
int semClose;
if(semClose=sem_close(spaceList) )==-1{
printf("erreur");
return -1;
}
return 0;
};
*/
/*void *add(char * idAncien, char *idNouveau);
int descMemory;
void * add(char * idAncien, char *idNouveau){
descMemory=shm_open("/titi",
O_RDWR|O_CREAT|O_EXCL|O_TRUNC,
0600);
@ -47,21 +87,28 @@ void * add(char * idAncien, char *idNouveau){
printf("erreur ftruncate");
}
/* memory= mmap(0, 1024,
memory= mmap(0, 1024,
PROT_READ | PROT_WRITE,
MAP_SHARED, mSFd, 0)*/
/*typedef struct MsgSpaceListElem {
void * id;
int ownerPid;
msgSpaceListElemId next;
} * msgSpaceList, msgSpaceListElem;
/* if( Strcpy(idAncien, idNouveau) ==-1){
msgSpaceListElemId *mslist;
if( Strcpy(idAncien, idNouveau) ==-1){
printf("erreur de strcpy");
};*/
};
strcpy(idAncien, idNouveau);
return NULL;
}
}
*/