diff --git a/src/ids.c b/src/ids.c
index 403a13a..3582789 100644
--- a/src/ids.c
+++ b/src/ids.c
@@ -102,5 +102,21 @@ int msgQueueSemIdIntern(
   return 0;
 }
 
+int msgQueueIdIntern(
+	msgQueueId dest,
+	msgSpaceId externId, 
+	int queueIdx){
+  if (strlen(externId)>MSGSPACE_ID_LEN){
+	return -1;
+  }
+#ifdef _NZG_REALFILEID
+  sprintf(dest,"/tmp/nzgQueue-%s-%d",(char *)externId,queueIdx);
+#else
+  sprintf(dest,"/nzgQueue-%s-%d",(char *)externId,queueIdx);
+#endif
+  return 0;
+}
+
+
 
 #endif
diff --git a/src/ids.h b/src/ids.h
index d6c4e58..7c87d5f 100644
--- a/src/ids.h
+++ b/src/ids.h
@@ -12,5 +12,9 @@ int msgQueueSemIdIntern(
 	msgQueueSemId dest,
 	msgSpaceId externId, 
 	int queueIdx);
+int msgQueueIdIntern(
+	msgQueueId dest,
+	msgSpaceId externId, 
+	int queueIdx);
 
 #endif
diff --git a/src/queueInit.c b/src/queueInit.c
index e69de29..9c53ae7 100644
--- a/src/queueInit.c
+++ b/src/queueInit.c
@@ -0,0 +1,56 @@
+#include "libnazgul.h"
+#include "ids.h"
+
+msgQueue * queueInit(msgSpaceId externId, int queueIdx) {
+	int queueFd;
+	msgQueue * queue;
+	sem_t * semaphore;
+	msgQueueId queueId;
+
+	queue = NULL;
+	
+	if(msgQueueIdIntern(queueId, externId, queueIdx) < 0) {
+		return NULL;
+	}
+	
+	queueFd = shm_open(queueId, O_RDWR|O_CREAT|O_EXCL|O_TRUNC, MSGSPACE_DEFAULT_MODE);
+	if(queueFd == -1) {
+		fprintf(stderr, "queueInit : %s initialisation failed: %s\n", queueId, strerror(errno));
+		return NULL;
+	}
+
+	if(ftruncate(queueFd, sizeof(* queue)) == -1) {
+		fprintf( stderr, "Queue resizing failed: %s\n",
+			strerror( errno ) );
+		return NULL;
+  }
+
+
+	/* on remplit la structure msgQueue */
+	queue->elemCounter = 0;
+	//queue->head = NULL;
+	//queue->tail = NULL;
+
+
+	
+	// creation du semaphore
+	semaphore = sem_open(queueId, O_CREAT|O_EXCL, SEM_DEFAULT_MODE, 1);
+	if(semaphore == SEM_FAILED) {
+		NZG_ERROR("sem_open", queueId);
+		goto ERROR;
+	}
+
+if(sem_wait(semaphore)==-1){
+	NZG_ERROR("sem_wait",queueId);
+	goto ERROR;
+  }
+
+	/* on ferme tout ce qu'il faut */
+	sem_close(semaphore);
+	close(queueFd);
+	
+	return queue;
+ERROR:
+	return NULL;
+	
+}