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openmpi/src/mpi/c/info_set.c

95 строки
2.7 KiB
C
Исходник Обычный вид История

/*
* $HEADER$
*/
#include "ompi_config.h"
#include "mpi.h"
#include "mpi/c/bindings.h"
#include "class/ompi_list.h"
#include "info/info.h"
#include <stdlib.h>
#include <string.h>
#include "errhandler/errhandler.h"
#include "communicator/communicator.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Info_set = PMPI_Info_set
#endif
#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif
/**
* MPI_Info_set - Set a (key, value) pair in an 'MPI_Info' object
*
* @param key null-terminated character string of the index key
* @param value null-terminated character string of the value
* @param info info object (handle)
*
* @retval MPI_SUCCESS
* @retval MPI_ERR_ARG
* @retval MPI_ERR_INFO_KEY
* @retval MPI_ERR_INFO_VAL
* @retval MPI_ERR_INFO_NOKEY
* @retval MPI_ERR_INTERN
*
* MPI_Info_set adds the (key,value) pair to info, and overrides
* teh value if for the same key a previsou value was set. key and
* value must be NULL terminated strings in C. In fortan, leading
* and trailing spaces in key and value are stripped. If either
* key or value is greater than the allowed maxima, MPI_ERR_INFO_KEY
* and MPI_ERR_INFO_VALUE are raised
*/
int MPI_Info_set(MPI_Info info, char *key, char *value) {
int err;
int key_length;
int value_length;
/*
* Error conditions are
* 1. MPI_ERR_ARG if
* - info is NULL
* 2. MPI_ERR_SYSRESOURCE
* - No storage space available for the new value
* 3. MPI_ERR_INFO_KEY
* - Key length exceeded MPI_MAX_KEY_VAL
* 3. MPI_ERR_INFO_VAL
* - value length exceeded MPI_MAX_KEY_VAL
*/
if (MPI_PARAM_CHECK) {
if (NULL == info){
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_ARG,
"MPI_Info_set");
}
key_length = (key) ? strlen (key) : 0;
if ( (0 == key_length) || (MPI_MAX_INFO_KEY <= key_length)) {
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_INFO_KEY,
"MPI_Info_set");
}
value_length = (value) ? strlen (value) : 0;
if ( (0 == value_length) || (MPI_MAX_INFO_KEY <= value_length)) {
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_INFO_VALUE,
"MPI_Info_set");
}
}
/*
* If all is right with the arguments, then call the back-end
* allocator.
*/
err = ompi_info_set (info, key, value);
if (MPI_ERR_SYSRESOURCE == err) {
return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_SYSRESOURCE,
"MPI_Info_set");
}
return err;
}