root/ompi/mca/io/romio321/romio/mpi2-other/info/info_delete.c

DEFINITIONS

1. MPI_Info_delete

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
   2 /* 
   3  *
   4  *   Copyright (C) 1997 University of Chicago. 
   5  *   See COPYRIGHT notice in top-level directory.
   6  */
   7 
   8 #include "mpioimpl.h"
   9 
  10 #ifdef HAVE_WEAK_SYMBOLS
  11 
  12 #if defined(HAVE_PRAGMA_WEAK)
  13 #pragma weak MPI_Info_delete = PMPI_Info_delete
  14 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
  15 #pragma _HP_SECONDARY_DEF PMPI_Info_delete MPI_Info_delete
  16 #elif defined(HAVE_PRAGMA_CRI_DUP)
  17 #pragma _CRI duplicate MPI_Info_delete as PMPI_Info_delete
  18 /* end of weak pragmas */
  19 #endif
  20 
  21 /* Include mapping from MPI->PMPI */
  22 #define MPIO_BUILD_PROFILING
  23 #include "mpioprof.h"
  24 #endif
  25 
  26 /*@
  27     MPI_Info_delete - Deletes a (key,value) pair from info
  28 
  29 Input Parameters:
  30 . info - info object (handle)
  31 . key - key (string)
  32 
  33 .N fortran
  34 @*/
  35 int MPI_Info_delete(MPI_Info info, char *key)
  36 {
  37     MPI_Info prev, curr;
  38     int done;
  39 
  40     if ((info <= (MPI_Info) 0) || (info->cookie != MPIR_INFO_COOKIE)) {
  41         FPRINTF(stderr, "MPI_Info_delete: Invalid info object\n");
  42         MPI_Abort(MPI_COMM_WORLD, 1);
  43     }
  44 
  45     if (key <= (char *) 0) {
  46         FPRINTF(stderr, "MPI_Info_delete: key is an invalid address\n");
  47         MPI_Abort(MPI_COMM_WORLD, 1);
  48     }
  49 
  50     if (strlen(key) > MPI_MAX_INFO_KEY) {
  51         FPRINTF(stderr, "MPI_Info_delete: key is longer than MPI_MAX_INFO_KEY\n");
  52         MPI_Abort(MPI_COMM_WORLD, 1);
  53     }
  54 
  55     if (!strlen(key)) {
  56         FPRINTF(stderr, "MPI_Info_delete: key is a null string\n");
  57         MPI_Abort(MPI_COMM_WORLD, 1);
  58     }
  59 
  60     prev = info;
  61     curr = info->next;
  62     done = 0;
  63 
  64     while (curr) {
  65         if (!strcmp(curr->key, key)) {
  66             ADIOI_Free(curr->key); 
  67             ADIOI_Free(curr->value);
  68             prev->next = curr->next;
  69             ADIOI_Free(curr);
  70             done = 1;
  71             break;
  72         }
  73         prev = curr;
  74         curr = curr->next;
  75     }
  76 
  77     if (!done) {
  78         FPRINTF(stderr, "MPI_Info_delete: key not defined in info\n");
  79         MPI_Abort(MPI_COMM_WORLD, 1);   
  80     }
  81 
  82     return MPI_SUCCESS;
  83 }