Charm++: Charm Source Code Documentation

00001 /* -*- Mode: C; c-basic-offset:4 ; -*- */
00002 /* 
00003  *   $Id$    
00004  *
00005  *   Copyright (C) 1997 University of Chicago. 
00006  *   See COPYRIGHT notice in top-level directory.
00007  */
00008 
00009 #include "mpioimpl.h"
00010 
00011 #ifdef HAVE_WEAK_SYMBOLS
00012 
00013 #if defined(HAVE_PRAGMA_WEAK)
00014 #pragma weak MPI_File_get_view = PMPI_File_get_view
00015 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
00016 #pragma _HP_SECONDARY_DEF PMPI_File_get_view MPI_File_get_view
00017 #elif defined(HAVE_PRAGMA_CRI_DUP)
00018 #pragma _CRI duplicate MPI_File_get_view as PMPI_File_get_view
00019 /* end of weak pragmas */
00020 #endif
00021 
00022 /* Include mapping from MPI->PMPI */
00023 #define MPIO_BUILD_PROFILING
00024 #include "mpioprof.h"
00025 #endif
00026 #ifdef MPISGI
00027 #include "mpisgi2.h"
00028 #endif
00029 
00030 /*@
00031     MPI_File_get_view - Returns the file view
00032 
00033 Input Parameters:
00034 . fh - file handle (handle)
00035 
00036 Output Parameters:
00037 . disp - displacement (nonnegative integer)
00038 . etype - elementary datatype (handle)
00039 . filetype - filetype (handle)
00040 . datarep - data representation (string)
00041 
00042 .N fortran
00043 @*/
00044 int MPI_File_get_view(MPI_File fh, MPI_Offset *disp, MPI_Datatype *etype,
00045                  MPI_Datatype *filetype, char *datarep)
00046 {
00047 #ifndef PRINT_ERR_MSG
00048     int error_code;
00049     static char myname[] = "MPI_FILE_GET_VIEW";
00050 #endif
00051     int i, j, k, combiner;
00052     MPI_Datatype copy_etype, copy_filetype;
00053 
00054 #ifdef PRINT_ERR_MSG
00055     if ((fh <= (MPI_File) 0) || (fh->cookie != ADIOI_FILE_COOKIE)) {
00056         FPRINTF(stderr, "MPI_File_get_view: Invalid file handle\n");
00057         MPI_Abort(MPI_COMM_WORLD, 1);
00058     }
00059 #else
00060     ADIOI_TEST_FILE_HANDLE(fh, myname);
00061 #endif
00062 
00063     if (datarep <= (char *) 0) {
00064 #ifdef PRINT_ERR_MSG
00065         FPRINTF(stderr, "MPI_File_get_view: The user must allocate memory for datarep\n");
00066         MPI_Abort(MPI_COMM_WORLD, 1);
00067 #else
00068         error_code = MPIR_Err_setmsg(MPI_ERR_ARG, MPIR_ERR_DATAREP_ARG,
00069                                      myname, (char *) 0, (char *) 0);
00070         return ADIOI_Error(fh, error_code, myname);
00071 #endif
00072     }
00073 
00074     *disp = fh->disp;
00075     strcpy(datarep, "native");
00076 
00077     MPI_Type_get_envelope(fh->etype, &i, &j, &k, &combiner);
00078     if (combiner == MPI_COMBINER_NAMED) *etype = fh->etype;
00079     else {
00080         MPI_Type_contiguous(1, fh->etype, &copy_etype);
00081         MPI_Type_commit(&copy_etype);
00082         *etype = copy_etype;
00083     }
00084     MPI_Type_get_envelope(fh->filetype, &i, &j, &k, &combiner);
00085     if (combiner == MPI_COMBINER_NAMED) *filetype = fh->filetype;
00086     else {
00087         MPI_Type_contiguous(1, fh->filetype, &copy_filetype);
00088         MPI_Type_commit(&copy_filetype);
00089         *filetype = copy_filetype;
00090     }
00091 
00092     return MPI_SUCCESS;
00093 }
libs/ck-libs/ampi/romio/mpi-io/get_view.c
