C++ (Cpp) DBC::get_priorityの例

コード例 #1

ファイル: cursor.c プロジェクト: cran/RBerkeley

/* {{{ rberkeley_dbcursor_get_priority */
SEXP rberkeley_dbcursor_get_priority (SEXP _dbc)
{
  DBC *dbc;
  DB_CACHE_PRIORITY priority;
  int ret;

  dbc = R_ExternalPtrAddr(_dbc);
  if(R_ExternalPtrTag(_dbc) != install("DBC") || dbc == NULL)
    error("invalid 'dbc' handle");

  ret = dbc->get_priority(dbc, &priority);

  if(ret != 0)
    return ScalarInteger(ret);

  switch(priority) {
    case DB_PRIORITY_VERY_LOW:
      return mkString("DB_PRIORITY_VERY_LOW");
      break;
    case DB_PRIORITY_LOW:
      return mkString("DB_PRIORITY_LOW");
      break;
    case DB_PRIORITY_DEFAULT:
      return mkString("DB_PRIORITY_DEFAULT");
      break;
    case DB_PRIORITY_HIGH:
      return mkString("DB_PRIORITY_HIGH");
      break;
    case DB_PRIORITY_VERY_HIGH:
      return mkString("DB_PRIORITY_VERY_HIGH");
      break;
    default:
      return R_NilValue;
  }
}

コード例 #2

ファイル: db.c プロジェクト: rforge/rberkeley

/* {{{ rberkeley_db_get_priority */
SEXP rberkeley_db_get_priority (SEXP _dbp)
{
  error("DB->get_priority is unavailable from R");
  DBC *dbp;
  DB_CACHE_PRIORITY priority;
  int ret;

  dbp = R_ExternalPtrAddr(_dbp);
  if(R_ExternalPtrTag(_dbp) != RBerkeley_DB || dbp == NULL)
    error("invalid 'db' handle");

  /* something is wrong with this call... */
  ret = dbp->get_priority(dbp, &priority);

  if(ret != 0) 
    return ScalarInteger(ret);

  switch(priority) {
    case DB_PRIORITY_VERY_LOW:
      return mkString("DB_PRIORITY_VERY_LOW");
      break;
    case DB_PRIORITY_LOW:
      return mkString("DB_PRIORITY_LOW");
      break;
    case DB_PRIORITY_DEFAULT:
      return mkString("DB_PRIORITY_DEFAULT");
      break;
    case DB_PRIORITY_HIGH:
      return mkString("DB_PRIORITY_HIGH");
      break;
    case DB_PRIORITY_VERY_HIGH:
      return mkString("DB_PRIORITY_VERY_HIGH");
      break;
    default:
      return R_NilValue;
  }
}