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

void * msgPoolDataTabOpen(msgSpace * space){
  int poolDataTabFd;
  void * poolDataTabAddr;

  poolDataTabFd=shm_open(space->poolDataTabId,
	  O_RDWR,
	  MSGSPACE_DEFAULT_MODE);
  if (poolDataTabFd == -1 ) {
	NZG_ERROR("shm_open",space->poolDataTabId);
	goto ERROR;
  }


  poolDataTabAddr = mmap( NULL, (space->poolNb) * sizeof( msgPoolData ),
	  PROT_READ | PROT_WRITE,
	  MAP_SHARED, poolDataTabFd, 0 );

  if( poolDataTabAddr == MAP_FAILED) {
	NZG_ERROR("mmap",space->poolDataTabId);
	goto ERROR;
  }

  close(poolDataTabFd);

  return poolDataTabAddr;
ERROR:
  return NULL;
}