#include "libnazgul.h"
#include "ids.h"

// cree un nouvel elemen
void * msgSpaceListElemOpen(msgSpaceListElemId listElemId){
  int listElemFd;
  void * listElemAddr;

  listElemFd=shm_open(listElemId,O_RDWR,SHM_DEFAULT_MODE);
  if (listElemFd == -1 ) {
	NZG_ERROR("shm_open : msgSpaceListElem open",listElemId);
	goto ERROR;
  }

  listElemAddr=mmap(NULL,
	  sizeof(msgQueueElem),
	  PROT_READ|PROT_WRITE,
	  MAP_SHARED,
	  listElemFd,
	  0);

  if( listElemAddr == MAP_FAILED ) {
	NZG_ERROR("mmap",listElemId);
	goto ERROR;
  }

  close(listElemFd);
  return listElemAddr; 
ERROR: 
  return NULL;


};