diff --git a/src/ids.c b/src/ids.c
index 4adc693..5a33d4a 100644
--- a/src/ids.c
+++ b/src/ids.c
@@ -1,6 +1,3 @@
-#ifndef _NZG_IDS
-#define _NZG_IDS 1
-
 #include "libnazgul.h"
 #include "ids.h"
 
@@ -143,7 +140,7 @@ int msgQueueElemIdIntern(
   return 0;
 }
 
-int spaceListElemIdIntern(msgSpaceListElemId elemListId,msgSpaceId externId){
+int msgSpaceListElemIdIntern(msgSpaceListElemId elemListId,msgSpaceId externId){
    if (strlen(externId)>MSGSPACE_ID_LEN){
 	return -1;
   }
@@ -158,4 +155,4 @@ int spaceListElemIdIntern(msgSpaceListElemId elemListId,msgSpaceId externId){
 }
 
 
-#endif
+
diff --git a/src/ids.h b/src/ids.h
index 7c87d5f..ff03c3d 100644
--- a/src/ids.h
+++ b/src/ids.h
@@ -1,8 +1,14 @@
 #ifndef _NZG_IDS
 #define _NZG_IDS 1
-
 #include "libnazgul.h"
 
+#ifdef _NZG_REALFILEID
+#define msgSpaceListId "/tmp/nzgSpaceList"
+#else
+#define msgSpaceListId "/nzgSpaceList"
+#endif
+
+
 /* nzg_ids.c */
 int msgSpaceIdIntern(msgSpaceId dest, const msgSpaceId src);
 int msgPoolSemIdIntern(msgPoolSemId destSemId, const msgSpaceId srcPoolId, int poolIdx);
diff --git a/src/iface.h b/src/iface.h
index 9fcc337..fa8b332 100644
--- a/src/iface.h
+++ b/src/iface.h
@@ -59,15 +59,18 @@ typedef struct MsgSpace {
 
 
 typedef struct MsgSpaceListElem {
-  int ownerPid;
+  msgSpaceListElemId id;
+
   msgSpaceId spaceId;
   msgSpaceListElemId next;
 } msgSpaceListElem;
 
 typedef struct MsgSpaceList {
+  msgSpaceListId id;
+  
   int elemCounter;
-  msgSpaceListElemId first;
-  msgSpaceListElemId last;
+  msgSpaceListElemId headId;
+  msgSpaceListElemId tailId;
 } msgSpaceList;
 
 typedef struct MsgQueueElem {
diff --git a/src/proto.h b/src/proto.h
index b5ea101..3616938 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -34,7 +34,7 @@ int msgQueueProtSemIdIntern(msgQueueSemId dest, msgSpaceId externId, int queueId
 int msgQueueReadSemIdIntern(msgQueueSemId dest, msgSpaceId externId, int queueIdx);
 int msgQueueIdIntern(msgQueueId dest, msgSpaceId externId, int queueIdx);
 int msgQueueElemIdIntern(msgQueueElemId dest, msgQueueId src, int counter);
-int spaceListElemIdIntern(msgSpaceListElemId elemListId, msgSpaceId externId);
+int msgSpaceListElemIdIntern(msgSpaceListElemId elemListId, msgSpaceId externId);
 /* list.c */
 /* poolCreate.c */
 int msgPoolCreate(msgSpaceId externId, int poolIdx, int buffNb, int buffSize);
@@ -87,14 +87,23 @@ msgSpace *msgSpaceCreate(msgSpaceId externId, int queueNb, int poolNb, msgPool *
 /* spaceDelete.c */
 int msgSpaceDelete(msgSpaceId externId);
 /* spaceListAdd.c */
+int msgSpaceListAdd(msgSpaceListElemId newElemId);
+/* spaceListClose.c */
+int msgSpaceListClose(msgSpaceList *list);
+/* spaceListElemClose.c */
+int msgSpaceListElemClose(msgSpaceListElem *listElem);
 /* spaceListElemCreate.c */
 int msgSpaceListElemCreate(msgSpaceListElemId elemenListId, msgSpace *space);
 /* spaceListElemLink.c */
+/* spaceListElemOpen.c */
+void *msgSpaceListElemOpen(msgSpaceListElemId listElemId);
 /* spaceListInit.c */
 int msgSpaceListInit(void);
 /* spaceListLocking.c */
 int msgSpaceListLock(void);
 int msgSpaceListUnlock(void);
+/* spaceListOpen.c */
+void *msgSpaceListOpen(void);
 /* spaceListRem.c */
 /* spaceOpen.c */
 msgSpace *msgSpaceOpen(msgSpaceId externId);
diff --git a/src/queueClose.c b/src/queueClose.c
index 0f8ea7a..cca58bc 100644
--- a/src/queueClose.c
+++ b/src/queueClose.c
@@ -1,6 +1,5 @@
 #include "libnazgul.h"
 #include "ids.h"
-#include "libnazgul.h"
 
 int msgQueueClose(msgQueue * queue){
   msgQueueId qId;
diff --git a/src/spaceListAdd.c b/src/spaceListAdd.c
index 5caa9cb..8371331 100644
--- a/src/spaceListAdd.c
+++ b/src/spaceListAdd.c
@@ -3,4 +3,50 @@
 // ajoute un element en début de liste.
 // fait pointer l'ancien dernier vers lui
 // il s'enregistre en tant que dernier chez la liste
-int msgSpaceListAdd(msgSpaceListElemId );
+int msgSpaceListAdd(msgSpaceListElemId newElemId){
+	msgSpaceListElem * listOldTailElem;
+	msgSpaceListElem * listNewTailElem;
+	msgSpaceList * list=NULL;
+
+	list=msgSpaceListOpen();
+
+	// on informe l'element qui est le dernier
+	listNewTailElem=msgSpaceListElemOpen(newElemId);
+	if (listNewTailElem==NULL){
+	}
+		strcpy(listNewTailElem->next,newElemId);
+ 	if (msgSpaceListElemClose(listNewTailElem) <0 ){
+	  NZG_ERROR("msgQueueElemClose",newElemId);
+	  goto ERROR;
+	}	
+
+	/* TODO: verifier si la liste n'est pas vide... */
+	if((strcmp(list->headId,list->id)==0) 
+		&& (strcmp(list->tailId,list->id)==0)) {
+	  printf("- premier elem de queue -\n");
+	  // on donne a la queue l'id de l'element
+	  strcpy(list->headId,newElemId);
+	  strcpy(list->tailId,newElemId);
+	} else {
+	  /* on informe son prédecesseur qu'il a un suivant */
+	  listOldTailElem=msgSpaceListElemOpen(list->tailId);
+	  if (listOldTailElem == NULL){
+		NZG_ERROR("msgQueueElemOpen",list->tailId);
+		goto ERROR;
+	  }
+	  strcpy(listOldTailElem->next,newElemId);
+	  if (msgSpaceListElemClose(listOldTailElem) < 0){
+		NZG_ERROR("msgQueueElemClose",list->tailId);
+		goto ERROR;
+	  }	
+	  // on donne a la queue l'id du dernier element
+	  strcpy(list->tailId,newElemId);
+	}
+	// on incremente elemCounter
+	list->elemCounter++;
+	msgSpaceListClose(list);
+	return 0;
+ERROR:
+	return -1;
+
+}
diff --git a/src/spaceListElemCreate.c b/src/spaceListElemCreate.c
index 100a111..05d40f5 100644
--- a/src/spaceListElemCreate.c
+++ b/src/spaceListElemCreate.c
@@ -2,33 +2,33 @@
 #include "ids.h"
 
 // cree un nouvel elemen
-int msgSpaceListElemCreate(msgSpaceListElemId elemenListId,msgSpace * space){
+int msgSpaceListElemCreate(
+	msgSpaceListElemId elemenListId,
+	msgSpace * space)
+{
 
-		int shmElemenList;
-		
-		/*Creation de lid pour lespace de message*/
+  msgSpaceId listElemId;
 
-		spaceListElemIdIntern(elemenListId,space->externId);
+  strcpy(listElemId,space->id);
+  int listElemFd;
 
+  listElemFd=shm_open(listElemId,
+	  O_RDWR|O_CREAT|O_EXCL|O_TRUNC,
+	  SHM_DEFAULT_MODE);
 
-		if ((shmElemenList=shm_open(elemenListId,
-										O_RDWR|O_CREAT|O_EXCL|O_TRUNC,
-										MSGSPACE_DEFAULT_MODE))==-1){
-				NZG_ERROR("shm_open:Space list creation",elemenListId);
-				goto ERROR;
-		}
+  if (listElemFd == -1 ) {
+	NZG_ERROR("shm_open : msgSpaceListElem creation",listElemId);
+	goto ERROR;
+  }
 
-		if(ftruncate(shmElemenList,sizeof(elemenListId) ) <0)	{
-				NZG_ERROR("ftruncate",elemenListId);
-				goto ERROR;
-		};
-		
-		close (shmElemenList);
-		//TODO: mapper le shm en mémoire et remplir avec des informations
-		
-		//strcpy(spaceListElem->spaceId,space->id);
-		return 0;
+  if (ftruncate(listElemFd, sizeof(msgQueueElem)) < 0){
+	NZG_ERROR("ftruncate", listElemId);
+	goto ERROR;
+  }
+
+  close(listElemFd);
+  return 0;
 ERROR:
-		return-1;
+  return -1;
 
 };