From 6272f135ed4a2633c2fb87466adf2f5f85c8c7a7 Mon Sep 17 00:00:00 2001
From: rivka_zan <rivka_zan>
Date: Sun, 22 Feb 2004 18:43:20 +0000
Subject: [PATCH] *fonction msgListLock

---
 src/nzg_msgList.c | 97 +++++++++++++++++++++++++++++++++++------------
 1 file changed, 72 insertions(+), 25 deletions(-)

diff --git a/src/nzg_msgList.c b/src/nzg_msgList.c
index 4820c85..1946612 100644
--- a/src/nzg_msgList.c
+++ b/src/nzg_msgList.c
@@ -29,39 +29,86 @@ 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){
-		descMemory=shm_open("/titi",
-						O_RDWR|O_CREAT|O_EXCL|O_TRUNC,
-						0600);
-
-		if (descMemory== -1){
-				printf("erreur de sh_open\n");
-				return NULL;
-		};
-
-		if (ftruncate(descMemory,1024)== -1 ){
-				printf("erreur ftruncate");
+		if((int)sem=sem_open(spaceList,O_CREAT|O_EXCL, 0666,10) ==-1){
+				printf("erreur de semaphore");
+				return -1;
 		}
 
-		/*	memory=	mmap(0, 1024,
-			PROT_READ | PROT_WRITE,
 
-
-			MAP_SHARED, mSFd, 0)*/
-
-	/*	if(	Strcpy(idAncien, idNouveau) ==-1){
-				printf("erreur de strcpy");
-		};*/
-
-		strcpy(idAncien, idNouveau);
-	return NULL;
+		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);
+
+  if (descMemory== -1){
+  printf("erreur de sh_open\n");
+  return NULL;
+  };
+
+  if (ftruncate(descMemory,1024)== -1 ){
+  printf("erreur ftruncate");
+  }
+
+  memory=	mmap(0, 1024,
+  PROT_READ | PROT_WRITE,
+
+
+  MAP_SHARED, mSFd, 0)*/
+/*typedef struct MsgSpaceListElem {
+  void * id;
+  int ownerPid;
+  msgSpaceListElemId next;
+  } * msgSpaceList, msgSpaceListElem;
+
+  msgSpaceListElemId *mslist;
+
+  if(	Strcpy(idAncien, idNouveau) ==-1){
+  printf("erreur de strcpy");
+  };
+
+  strcpy(idAncien, idNouveau);
+  return NULL;
+
+  }
+  */