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openmpi/src/mpi/c/file_read_all_begin.c
Jeff Squyres f6f0cccbec First cut of MPI_File / io MCA component framework. This also
includes the romio component.  Only blocking operations are supported
-- non-blocking stuff is pending some changes in the top-level
progression engine, and some threaded issues need to be worked out.

This commit was SVN r2655.
2004-09-14 10:55:10 +00:00

61 строка
1.4 KiB
C

/*
* $HEADER$
*/
#include "ompi_config.h"
#include "mpi.h"
#include "mpi/c/bindings.h"
#include "communicator/communicator.h"
#include "errhandler/errhandler.h"
#include "file/file.h"
#include "datatype/datatype.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_File_read_all_begin = PMPI_File_read_all_begin
#endif
#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_File_read_all_begin";
int MPI_File_read_all_begin(MPI_File fh, void *buf, int count,
MPI_Datatype datatype)
{
int rc;
if (MPI_PARAM_CHECK) {
rc = MPI_SUCCESS;
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_file_invalid(fh)) {
fh = MPI_FILE_NULL;
rc = MPI_ERR_FILE;
} else if (count < 0) {
rc = MPI_ERR_COUNT;
} else {
OMPI_CHECK_DATATYPE_FOR_RECV(rc, datatype, count);
}
OMPI_ERRHANDLER_CHECK(rc, fh, rc, FUNC_NAME);
}
/* Call the back-end io component function */
switch (fh->f_io_version) {
case MCA_IO_BASE_V_1_0_0:
rc = fh->f_io_selected_module.v1_0_0.
io_module_file_read_all_begin(fh, buf, count, datatype);
break;
default:
rc = MPI_ERR_INTERN;
break;
}
/* All done */
OMPI_ERRHANDLER_RETURN(rc, fh, rc, FUNC_NAME);
}