70 строки
1.7 KiB
C
70 строки
1.7 KiB
C
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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
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/*
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* Copyright (c) 2012-2013 Los Alamos National Security, LLC. All rights
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* reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi/mpit/mpit-internal.h"
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static const char FUNC_NAME[] = "MPI_T_cvar_read";
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int MPI_T_cvar_read (MPI_T_cvar_handle handle, void *buf)
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{
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const mca_base_var_storage_t *value;
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int rc = MPI_SUCCESS;
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if (!mpit_is_initialized ()) {
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return MPI_T_ERR_NOT_INITIALIZED;
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}
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if (MPI_PARAM_CHECK && NULL == buf) {
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return MPI_ERR_ARG;
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}
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mpit_lock ();
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do {
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rc = mca_base_var_get_value(handle->var->mbv_index, &value, NULL, NULL);
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if (OPAL_SUCCESS != rc) {
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/* shouldn't happen */
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rc = MPI_ERR_OTHER;
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break;
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}
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switch (handle->var->mbv_type) {
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case MCA_BASE_VAR_TYPE_INT:
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case MCA_BASE_VAR_TYPE_UNSIGNED_INT:
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((int *) buf)[0] = value->intval;
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break;
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case MCA_BASE_VAR_TYPE_UNSIGNED_LONG_LONG:
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((unsigned long long *) buf)[0] = value->ullval;
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break;
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case MCA_BASE_VAR_TYPE_SIZE_T:
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((int *) buf)[0] = value->sizetval;
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break;
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case MCA_BASE_VAR_TYPE_BOOL:
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((int *) buf)[0] = value->boolval;
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break;
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case MCA_BASE_VAR_TYPE_STRING:
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if (NULL == value->stringval) {
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((char *)buf)[0] = '\0';
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} else {
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strcpy ((char *) buf, value->stringval);
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}
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break;
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default:
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rc = MPI_ERR_OTHER;
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}
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} while (0);
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mpit_unlock ();
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return rc;
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}
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