726af9ea85
- fix a few bugs - convert/add doxygen comments for internal info functions in src/info/info.h (some comments were originally in src/info/info.c) - make it thread safe - make MPI_INFO_NULL be a real object (vs ((struct ompi_info_t*) 0)) - add error checking into top-level MPI functions - add support in MPI_Info for "never freeing MPI handles" as a form of debugging i.e., check if see if you accidentally use a freed handle) - add support for "print out a list of un-freed MPI_Info handles during MPI_FINALIZE" This commit was SVN r2089.
77 строки
2.1 KiB
C
77 строки
2.1 KiB
C
/*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "mpi.h"
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#include "mpi/c/bindings.h"
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#include "class/ompi_list.h"
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#include "info/info.h"
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#include <string.h>
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#include "errhandler/errhandler.h"
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#include "communicator/communicator.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
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#pragma weak MPI_Info_get_nthkey = PMPI_Info_get_nthkey
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#endif
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#if OMPI_PROFILING_DEFINES
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#include "mpi/c/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_Info_get_nthkey";
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/**
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* MPI_Info_get_nthkey - Get a key indexed by integer from an 'MPI_Info' obje
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*
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* @param info info object (handle)
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* @param n index of key to retrieve (integer)
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* @param key character string of at least 'MPI_MAX_INFO_KEY' characters
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*
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* @retval MPI_SUCCESS
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* @retval MPI_ERR_ARG
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* @retval MPI_ERR_INFO
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* @retval MPI_ERR_INFO_KEY
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*/
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int MPI_Info_get_nthkey(MPI_Info info, int n, char *key)
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{
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int nkeys;
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int err;
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/*
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* 1. Check if info is a valid handle
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* 2. Check if there are atleast "n" elements
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* 3. If so, give the nth defined key
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*/
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if (MPI_PARAM_CHECK) {
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OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
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if (NULL == info || MPI_INFO_NULL == info ||
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ompi_info_is_freed(info)) {
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return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_INFO,
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FUNC_NAME);
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}
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if (0 > n) {
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return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_ARG,
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FUNC_NAME);
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}
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if (NULL == key) {
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return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_INFO_KEY,
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FUNC_NAME);
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}
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}
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err = ompi_info_get_nkeys(info, &nkeys);
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OMPI_ERRHANDLER_CHECK(err, MPI_COMM_WORLD, err, FUNC_NAME);
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if (nkeys < n) {
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return OMPI_ERRHANDLER_INVOKE (MPI_COMM_WORLD, MPI_ERR_INFO_KEY,
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FUNC_NAME);
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}
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/* Everything seems alright. Call the back end key copy */
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err = ompi_info_get_nthkey (info, n, key);
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OMPI_ERRHANDLER_RETURN(err, MPI_COMM_WORLD, err, FUNC_NAME);
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}
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