text: /*
   * Copyright (c) 2005 Sandia Corporation. Under the terms of Contract
   * DE-AC04-94AL85000 with Sandia Corporation, the U.S. Governement
   * retains certain rights in this software.
   * 
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met:
   * 
   *     * Redistributions of source code must retain the above copyright
   *       notice, this list of conditions and the following disclaimer.
   * 
   *     * Redistributions in binary form must reproduce the above
   *       copyright notice, this list of conditions and the following
   *       disclaimer in the documentation and/or other materials provided
   *       with the distribution.  
   * 
   *     * Neither the name of Sandia Corporation nor the names of its
   *       contributors may be used to endorse or promote products derived
   *       from this software without specific prior written permission.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   * 
   */
  /*
   *  $Id: exgids.c,v 1.1 2006/11/29 18:09:13 dcthomp Exp $
   *
   *****************************************************************************/
  
  #include <stdlib.h>
  #include "exodusII.h"
  #include "exodusII_int.h"
  
  /*
   *  reads the element block ids from the database
   */
  
  int ex_get_ids (int  exoid,
      int obj_type, 
      int *ids)
  {
    int dimid, varid, iresult;
    long numobj, start[1], count[1]; 
    nclong *longs;
    char errmsg[MAX_ERR_LENGTH];
  
    const char* dimnumobj;
    const char* varidobj;
    const char* tname;
  
    exerrval = 0; /* clear error code */
  
    switch (obj_type) {
    case EX_EDGE_BLOCK:
      tname = "edge block";
      dimnumobj = DIM_NUM_ED_BLK;
      varidobj = VAR_ID_ED_BLK;
      break;
    case EX_FACE_BLOCK:
      tname = "face block";
      dimnumobj = DIM_NUM_FA_BLK;
      varidobj = VAR_ID_FA_BLK;
      break;
    case EX_ELEM_BLOCK:
      tname = "element block";
      dimnumobj = DIM_NUM_EL_BLK;
      varidobj = VAR_ID_EL_BLK;
      break;
    case EX_NODE_SET:
      tname = "node set";
      dimnumobj = DIM_NUM_NS;
      varidobj = VAR_NS_IDS;
      break;
    case EX_EDGE_SET:
      tname = "edge set";
      dimnumobj = DIM_NUM_ES;
      varidobj = VAR_ES_IDS;
      break;
    case EX_FACE_SET:
      tname = "face set";
      dimnumobj = DIM_NUM_FS;
      varidobj = VAR_FS_IDS;
      break;
    case EX_SIDE_SET:
      tname = "side set";
      dimnumobj = DIM_NUM_SS;
      varidobj = VAR_SS_IDS;
      break;
    case EX_ELEM_SET:
      tname = "element set";
      dimnumobj = DIM_NUM_ELS;
      varidobj = VAR_ELS_IDS;
      break;
    case EX_NODE_MAP:
      tname = "node map";
      dimnumobj = DIM_NUM_NM;
      varidobj = VAR_NM_PROP(1);
      break;
    case EX_EDGE_MAP:
      tname = "edge map";
      dimnumobj = DIM_NUM_EDM;
      varidobj = VAR_EDM_PROP(1);
      break;
    case EX_FACE_MAP:
      tname = "face map";
      dimnumobj = DIM_NUM_FAM;
      varidobj = VAR_FAM_PROP(1);
      break;
    case EX_ELEM_MAP:
      tname = "element map";
      dimnumobj = DIM_NUM_EM;
      varidobj = VAR_EM_PROP(1);
      break;
    default:/* invalid variable type */
      exerrval = EX_BADPARAM;
      sprintf(errmsg, "Error: Invalid type specified in file id %d", exoid);
      ex_err("ex_get_ids",errmsg,exerrval);
      return(EX_FATAL);
    }
  
    /* inquire id's of previously defined dimensions and variables  */
  
    if ((dimid = ncdimid (exoid, dimnumobj)) == -1)
      {
      exerrval = ncerr;
      sprintf(errmsg,
        "Error: failed to locate dimension %s in file id %d",
        dimnumobj,exoid);
      ex_err("ex_get_ids",errmsg,exerrval);
      return (EX_FATAL);
      }
  
    if (ncdiminq (exoid, dimid, (char*)0, &numobj) == -1)
      {
      exerrval = ncerr;
      sprintf(errmsg,
        "Error: failed to return number of %ss in file id %d",
        tname,exoid);
      ex_err("ex_get_ids",errmsg,exerrval);
      return (EX_FATAL);
      }
  
  
    if ((varid = ncvarid (exoid, varidobj)) == -1)
      {
      exerrval = ncerr;
      sprintf(errmsg,
        "Error: failed to locate %s ids variable in file id %d",
        tname,exoid);
      ex_err("ex_get_ids",errmsg,exerrval);
      return (EX_FATAL);
      }
  
  
    /* read in the element block ids  */
  
    /* application code has allocated an array of ints but netcdf is expecting
       a pointer to nclongs;  if ints are different sizes than nclongs,
       we must allocate an array of nclongs then convert them to ints with ltoi */
  
    start[0] = 0;
    count[0] = numobj;
  
    if (sizeof(int) == sizeof(nclong)) {
      iresult = ncvarget (exoid, varid, start, count, ids);
    } else {
      if (!(longs = malloc(numobj * sizeof(nclong)))) {
        exerrval = EX_MEMFAIL;
        sprintf(errmsg,
          "Error: failed to allocate memory for %s ids for file id %d",
                 tname,exoid);
         ex_err("ex_get_ids",errmsg,exerrval);
         return (EX_FATAL);
       }
       iresult = ncvarget (exoid, varid, start, count, longs);
     }
  
     if (iresult == -1)
     {
       exerrval = ncerr;
       sprintf(errmsg,
         "Error: failed to return %s ids in file id %d",
               tname,exoid);
       ex_err("ex_get_ids",errmsg,exerrval);
       return (EX_FATAL);
     }
  
     if (sizeof(int) != sizeof(nclong)) {
        ltoi (longs, ids, numobj);
        free (longs);
     }
  
     return(EX_NOERR);
  }
  