C++ (Cpp) gmx_fio_int_get_file_position Examples

Example #1

File: gmxfio.c Project: daniellandau/gromacs

int gmx_fio_get_output_file_positions(gmx_file_position_t **p_outputfiles,
                                      int                  *p_nfiles)
{
    int                   i, nfiles, rc, nalloc;
    int                   pos_hi, pos_lo;
    long                  pos;
    gmx_file_position_t * outputfiles;
    char                  buf[STRLEN];
    t_fileio             *cur;

    nfiles = 0;

    /* pre-allocate 100 files */
    nalloc = 100;
    snew(outputfiles, nalloc);

    cur = gmx_fio_get_first();
    while (cur)
    {
        /* Skip the checkpoint files themselves, since they could be open when
           we call this routine... */
        /* also skip debug files (shoud be the only iFTP==efNR) */
        if (cur->bOpen &&
            !cur->bRead &&
            !cur->bStdio &&
            cur->iFTP != efCPT &&
            cur->iFTP != efNR)
        {
            int ret;
            /* This is an output file currently open for writing, add it */
            if (nfiles == nalloc)
            {
                nalloc += 100;
                srenew(outputfiles, nalloc);
            }

            strncpy(outputfiles[nfiles].filename, cur->fn, STRLEN - 1);

            /* Get the file position */
            gmx_fio_int_get_file_position(cur, &outputfiles[nfiles].offset);
#ifndef GMX_FAHCORE
            outputfiles[nfiles].chksum_size
                = gmx_fio_int_get_file_md5(cur,
                                           outputfiles[nfiles].offset,
                                           outputfiles[nfiles].chksum);
#endif
            nfiles++;
        }

        cur = gmx_fio_get_next(cur);
    }
    *p_nfiles      = nfiles;
    *p_outputfiles = outputfiles;

    return 0;
}

Example #2

File: gmxfio.c Project: yhalcyon/Gromacs

int gmx_fio_check_file_position(t_fileio *fio)
{
    /* If gmx_off_t is 4 bytes we can not store file offset > 2 GB.
     * If we do not have ftello, we will play it safe.
     */
#if (SIZEOF_GMX_OFF_T == 4 || !defined HAVE_FSEEKO)
    gmx_off_t offset;

    gmx_fio_lock(fio);
    gmx_fio_int_get_file_position(fio, &offset);
    /* We have a 4 byte offset,
     * make sure that we will detect out of range for all possible cases.
     */
    if (offset < 0 || offset > 2147483647)
    {
        fio->bLargerThan_off_t = TRUE;
    }
    gmx_fio_unlock(fio);
#endif

    return 0;
}