mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-11-25 11:54:01 +08:00
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/* Copyright (C) 2002, 2003, 2005, 2007, 2009 Free Software Foundation, Inc.
|
|
Contributed by Andy Vaught
|
|
|
|
This file is part of the GNU Fortran 95 runtime library (libgfortran).
|
|
|
|
Libgfortran is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3, or (at your option)
|
|
any later version.
|
|
|
|
Libgfortran is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include "io.h"
|
|
#include "unix.h"
|
|
#include <limits.h>
|
|
|
|
typedef enum
|
|
{ CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED }
|
|
close_status;
|
|
|
|
static const st_option status_opt[] = {
|
|
{"keep", CLOSE_KEEP},
|
|
{"delete", CLOSE_DELETE},
|
|
{NULL, 0}
|
|
};
|
|
|
|
|
|
extern void st_close (st_parameter_close *);
|
|
export_proto(st_close);
|
|
|
|
void
|
|
st_close (st_parameter_close *clp)
|
|
{
|
|
close_status status;
|
|
gfc_unit *u;
|
|
#if !HAVE_UNLINK_OPEN_FILE
|
|
char * path;
|
|
|
|
path = NULL;
|
|
#endif
|
|
|
|
library_start (&clp->common);
|
|
|
|
status = !(clp->common.flags & IOPARM_CLOSE_HAS_STATUS) ? CLOSE_UNSPECIFIED :
|
|
find_option (&clp->common, clp->status, clp->status_len,
|
|
status_opt, "Bad STATUS parameter in CLOSE statement");
|
|
|
|
if ((clp->common.flags & IOPARM_LIBRETURN_MASK) != IOPARM_LIBRETURN_OK)
|
|
{
|
|
library_end ();
|
|
return;
|
|
}
|
|
|
|
u = find_unit (clp->common.unit);
|
|
if (u != NULL)
|
|
{
|
|
if (u->flags.status == STATUS_SCRATCH)
|
|
{
|
|
if (status == CLOSE_KEEP)
|
|
generate_error (&clp->common, LIBERROR_BAD_OPTION,
|
|
"Can't KEEP a scratch file on CLOSE");
|
|
#if !HAVE_UNLINK_OPEN_FILE
|
|
path = (char *) gfc_alloca (u->file_len + 1);
|
|
unpack_filename (path, u->file, u->file_len);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
if (status == CLOSE_DELETE)
|
|
{
|
|
#if HAVE_UNLINK_OPEN_FILE
|
|
delete_file (u);
|
|
#else
|
|
path = (char *) gfc_alloca (u->file_len + 1);
|
|
unpack_filename (path, u->file, u->file_len);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
close_unit (u);
|
|
|
|
#if !HAVE_UNLINK_OPEN_FILE
|
|
if (path != NULL)
|
|
unlink (path);
|
|
#endif
|
|
}
|
|
|
|
/* CLOSE on unconnected unit is legal and a no-op: F95 std., 9.3.5. */
|
|
library_end ();
|
|
}
|