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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_hfs.h"
#include "adio_extern.h"
#ifndef HAVE_LSEEK64
#define lseek64 lseek
#endif
void ADIOI_HFS_Fcntl(ADIO_File fd, int flag, ADIO_Fcntl_t *fcntl_struct, int *error_code)
{
int i, ntimes, err;
ADIO_Offset curr_fsize, alloc_size, size, len, done;
ADIO_Status status;
char *buf;
#ifndef PRINT_ERR_MSG
static char myname[] = "ADIOI_HFS_FCNTL";
#endif
switch(flag) {
case ADIO_FCNTL_GET_FSIZE:
fcntl_struct->fsize = lseek64(fd->fd_sys, 0, SEEK_END);
#ifdef HPUX
if (fd->fp_sys_posn != -1)
lseek64(fd->fd_sys, fd->fp_sys_posn, SEEK_SET);
/* not required in SPPUX since there we use pread/pwrite */
#endif
if (fcntl_struct->fsize == -1) {
#ifdef MPICH
*error_code = MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, myname, __LINE__, MPI_ERR_IO, "**io",
"**io %s", strerror(errno));
#elif defined(PRINT_ERR_MSG)
*error_code = MPI_ERR_UNKNOWN;
#else /* MPICH-1 */
*error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
myname, "I/O Error", "%s", strerror(errno));
ADIOI_Error(fd, *error_code, myname);
#endif
}
else *error_code = MPI_SUCCESS;
break;
case ADIO_FCNTL_SET_DISKSPACE:
/* will be called by one process only */
#ifdef HPUX
err = prealloc64(fd->fd_sys, fcntl_struct->diskspace);
/* prealloc64 works only if file is of zero length */
if (err && (errno != ENOTEMPTY)) {
#ifdef MPICH
*error_code = MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, myname, __LINE__, MPI_ERR_IO, "**io",
"**io %s", strerror(errno));
#elif defined(PRINT_ERR_MSG)
*error_code = MPI_ERR_UNKNOWN;
#else
*error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
myname, "I/O Error", "%s", strerror(errno));
ADIOI_Error(fd, *error_code, myname);
#endif
return;
}
if (err && (errno == ENOTEMPTY)) {
#endif
#ifdef SPPUX
/* SPPUX has no prealloc64. therefore, use prealloc
if size < (2GB - 1), otherwise use long method. */
if (fcntl_struct->diskspace <= 2147483647) {
err = prealloc(fd->fd_sys, (off_t) fcntl_struct->diskspace);
if (err && (errno != ENOTEMPTY)) {
#ifdef MPICH
*error_code = MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, myname, __LINE__, MPI_ERR_IO, "**io",
"**io %s", strerror(errno));
#elif defined(PRINT_ERR_MSG)
*error_code = MPI_ERR_UNKNOWN;
#else
*error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
myname, "I/O Error", "%s", strerror(errno));
ADIOI_Error(fd, *error_code, myname);
#endif
return;
}
}
if ((fcntl_struct->diskspace > 2147483647) ||
(err && (errno == ENOTEMPTY))) {
#endif
ADIOI_GEN_Prealloc(fd,fcntl_struct->diskspace, error_code);
}
ADIOI_Free(buf);
#ifdef HPUX
if (fd->fp_sys_posn != -1)
lseek64(fd->fd_sys, fd->fp_sys_posn, SEEK_SET);
/* not required in SPPUX since there we use pread/pwrite */
#endif
}
*error_code = MPI_SUCCESS;
break;
case ADIO_FCNTL_SET_ATOMICITY:
fd->atomicity = (fcntl_struct->atomicity == 0) ? 0 : 1;
*error_code = MPI_SUCCESS;
break;
default:
FPRINTF(stderr, "Unknown flag passed to ADIOI_HFS_Fcntl\n");
MPI_Abort(MPI_COMM_WORLD, 1);
}
}
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