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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* Copyright (C) 1997 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
#include "ad_pvfs.h"
void ADIOI_PVFS_Open(ADIO_File fd, int *error_code)
{
int perm, amode, old_mask, flag;
char *value;
/* some really old versions of pvfs may not have a release nr */
/* we changed the structure of pvfs_filestat in pvfs-1.5.7 */
struct pvfs_filestat pstat = {-1,-1,-1};
static char myname[] = "ADIOI_PVFS_OPEN";
if (fd->perm == ADIO_PERM_NULL) {
old_mask = umask(022);
umask(old_mask);
perm = old_mask ^ 0666;
}
else perm = fd->perm;
amode = O_META;
if (fd->access_mode & ADIO_CREATE)
amode = amode | O_CREAT;
if (fd->access_mode & ADIO_RDONLY)
amode = amode | O_RDONLY;
if (fd->access_mode & ADIO_WRONLY)
amode = amode | O_WRONLY;
if (fd->access_mode & ADIO_RDWR)
amode = amode | O_RDWR;
if (fd->access_mode & ADIO_EXCL)
amode = amode | O_EXCL;
value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL+1)*sizeof(char));
ADIOI_Info_get(fd->info, "striping_factor", MPI_MAX_INFO_VAL,
value, &flag);
if (flag && (atoi(value) > 0)) pstat.pcount = atoi(value);
ADIOI_Info_get(fd->info, "striping_unit", MPI_MAX_INFO_VAL,
value, &flag);
if (flag && (atoi(value) > 0)) pstat.ssize = atoi(value);
ADIOI_Info_get(fd->info, "start_iodevice", MPI_MAX_INFO_VAL,
value, &flag);
if (flag && (atoi(value) >= 0)) pstat.base = atoi(value);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_open_a, 0, NULL );
#endif
fd->fd_sys = pvfs_open64(fd->filename, amode, perm, &pstat, NULL);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_open_b, 0, NULL );
#endif
fd->fd_direct = -1;
if ((fd->fd_sys != -1) && (fd->access_mode & ADIO_APPEND)) {
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_a, 0, NULL );
#endif
fd->fp_ind = fd->fp_sys_posn = pvfs_lseek64(fd->fd_sys, 0, SEEK_END);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_a, 0, NULL );
#endif
}
if (fd->fd_sys != -1) {
pvfs_ioctl(fd->fd_sys, GETMETA, &pstat);
ADIOI_Snprintf(value, MPI_MAX_INFO_VAL+1, "%d", pstat.pcount);
ADIOI_Info_set(fd->info, "striping_factor", value);
ADIOI_Snprintf(value, MPI_MAX_INFO_VAL+1, "%d", pstat.ssize);
ADIOI_Info_set(fd->info, "striping_unit", value);
ADIOI_Snprintf(value, MPI_MAX_INFO_VAL+1, "%d", pstat.base);
ADIOI_Info_set(fd->info, "start_iodevice", value);
}
ADIOI_Free(value);
if (fd->fd_sys == -1) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
myname, __LINE__, MPI_ERR_IO,
"**io",
"**io %s", strerror(errno));
}
else *error_code = MPI_SUCCESS;
}
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