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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"
#include "adio_extern.h"
void ADIOI_PVFS_Fcntl(ADIO_File fd, int flag, ADIO_Fcntl_t *fcntl_struct,
int *error_code)
{
static char myname[] = "ADIOI_PVFS_FCNTL";
switch(flag) {
case ADIO_FCNTL_GET_FSIZE:
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_a, 0, NULL );
#endif
fcntl_struct->fsize = pvfs_lseek64(fd->fd_sys, 0, SEEK_END);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_b, 0, NULL );
#endif
if (fd->fp_sys_posn != -1) {
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_a, 0, NULL );
#endif
pvfs_lseek64(fd->fd_sys, fd->fp_sys_posn, SEEK_SET);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event( ADIOI_MPE_lseek_b, 0, NULL );
#endif
}
if (fcntl_struct->fsize == -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;
break;
case ADIO_FCNTL_SET_DISKSPACE:
ADIOI_GEN_Prealloc(fd, fcntl_struct->diskspace, error_code);
break;
case ADIO_FCNTL_SET_ATOMICITY:
fd->atomicity = 0;
/* --BEGIN ERROR HANDLING-- */
if (fcntl_struct->atomicity != 0) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
MPI_ERR_UNSUPPORTED_OPERATION,
"PVFS does not support atomic mode",
0);
return;
}
/* --END ERROR HANDLING-- */
break;
default:
/* --BEGIN ERROR HANDLING-- */
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
MPI_ERR_ARG,
"**flag", "**flag %d", flag);
return;
/* --END ERROR HANDLING-- */
}
}
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