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

void * msgPoolDataTabCreate(msgSpace * space){
  int poolDataFd; // shm file descriptor
  msgPoolData * poolDataTabAddr;
  poolDataFd=shm_open(
	  space->poolDataTabId,
	  O_RDWR|O_CREAT|O_EXCL|O_TRUNC,
	  MSGSPACE_DEFAULT_MODE
	  );
  if (poolDataFd == -1 ) {
	NZG_ERROR("shm_open :create",space->poolDataTabId);
	goto ERROR;
  }

  /* allocation de la bonne zone mémoire pour le poolData */
  if (ftruncate(poolDataFd, (space->poolNb)*sizeof(msgPoolData)) == -1){
	NZG_ERROR("ftruncate",space->poolDataTabId);
	goto ERROR;
  }

  close(poolDataFd);
  poolDataTabAddr = msgPoolDataTabOpen(space);
  if (poolDataTabAddr == NULL){
	NZG_ERROR("msgPoolDataTabOpen : create",space->poolDataTabId);
	goto ERROR;
  }
  /*mmap( 0, sizeof( *mSAddr ),
	PROT_READ | PROT_WRITE,
	MAP_SHARED, mSFd, 0 );
	if( poolDataAddr == MAP_FAILED ) {
	NZG_ERROR("mmap",poolDataTabId);
	goto ERROR;
	}*/

  return poolDataTabAddr;
ERROR:
  return NULL;
}