File: get_bytoff.c

package info (click to toggle)
openmpi 2.0.2-2
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 99,912 kB
  • ctags: 55,589
  • sloc: ansic: 525,999; f90: 18,307; makefile: 12,062; sh: 6,583; java: 6,278; asm: 3,515; cpp: 2,227; perl: 2,136; python: 1,350; lex: 734; fortran: 52; tcl: 12
file content (71 lines) | stat: -rw-r--r-- 2,007 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
 *
 *   Copyright (C) 1997 University of Chicago.
 *   See COPYRIGHT notice in top-level directory.
 */

#include "mpioimpl.h"
#include "adioi.h" /* ADIOI_Get_byte_offset() prototype */

#ifdef HAVE_WEAK_SYMBOLS

#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_File_get_byte_offset = PMPI_File_get_byte_offset
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_File_get_byte_offset MPI_File_get_byte_offset
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_File_get_byte_offset as PMPI_File_get_byte_offset
/* end of weak pragmas */
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_File_get_byte_offset(MPI_File fh, MPI_Offset offset, MPI_Offset *disp) __attribute__((weak,alias("PMPI_File_get_byte_offset")));
#endif

/* Include mapping from MPI->PMPI */
#define MPIO_BUILD_PROFILING
#include "mpioprof.h"
#endif

/*@
    MPI_File_get_byte_offset - Returns the absolute byte position in
                the file corresponding to "offset" etypes relative to
                the current view

Input Parameters:
. fh - file handle (handle)
. offset - offset (nonnegative integer)

Output Parameters:
. disp - absolute byte position of offset (nonnegative integer)

.N fortran
@*/
int MPI_File_get_byte_offset(MPI_File fh, MPI_Offset offset, MPI_Offset *disp)
{
    int error_code;
    ADIO_File adio_fh;
    static char myname[] = "MPI_FILE_GET_BYTE_OFFSET";

    adio_fh = MPIO_File_resolve(fh);

    /* --BEGIN ERROR HANDLING-- */
    MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);

    if (offset < 0)
    {
	error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
					  myname, __LINE__, MPI_ERR_ARG,
					  "**iobadoffset", 0);
	error_code = MPIO_Err_return_file(adio_fh, error_code);
	goto fn_exit;
    }

    MPIO_CHECK_NOT_SEQUENTIAL_MODE(adio_fh, myname, error_code);
    /* --END ERROR HANDLING-- */

    ADIOI_Get_byte_offset(adio_fh, offset, disp);

fn_exit:

    return MPI_SUCCESS;
}