b8d403b467
2006-07-30 Jerry DeLisle <jvdelisle@gcc.gnu.org> PR libgfortran/28335 * close.c (st_close): Revert previous patch and add comment. * file_position.c (st_flush): Revert previous patch and add comment. From-SVN: r115829
109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
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Contributed by Andy Vaught
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This file is part of the GNU Fortran 95 runtime library (libgfortran).
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Libgfortran is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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from the use of this file. (The General Public License restrictions
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do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combine
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executable.)
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Libgfortran is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Libgfortran; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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#include "config.h"
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#include "libgfortran.h"
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#include "io.h"
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#include <limits.h>
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typedef enum
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{ CLOSE_DELETE, CLOSE_KEEP, CLOSE_UNSPECIFIED }
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close_status;
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static const st_option status_opt[] = {
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{"keep", CLOSE_KEEP},
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{"delete", CLOSE_DELETE},
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{NULL, 0}
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};
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extern void st_close (st_parameter_close *);
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export_proto(st_close);
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void
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st_close (st_parameter_close *clp)
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{
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close_status status;
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gfc_unit *u;
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#if !HAVE_UNLINK_OPEN_FILE
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char * path;
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path = NULL;
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#endif
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library_start (&clp->common);
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status = !(clp->common.flags & IOPARM_CLOSE_HAS_STATUS) ? CLOSE_UNSPECIFIED :
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find_option (&clp->common, clp->status, clp->status_len,
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status_opt, "Bad STATUS parameter in CLOSE statement");
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if ((clp->common.flags & IOPARM_LIBRETURN_MASK) != IOPARM_LIBRETURN_OK)
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{
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library_end ();
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return;
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}
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u = find_unit (clp->common.unit);
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if (u != NULL)
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{
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if (u->flags.status == STATUS_SCRATCH)
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{
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if (status == CLOSE_KEEP)
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generate_error (&clp->common, ERROR_BAD_OPTION,
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"Can't KEEP a scratch file on CLOSE");
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#if !HAVE_UNLINK_OPEN_FILE
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path = (char *) gfc_alloca (u->file_len + 1);
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unpack_filename (path, u->file, u->file_len);
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#endif
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}
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else
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{
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if (status == CLOSE_DELETE)
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{
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#if HAVE_UNLINK_OPEN_FILE
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delete_file (u);
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#else
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path = (char *) gfc_alloca (u->file_len + 1);
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unpack_filename (path, u->file, u->file_len);
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#endif
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}
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}
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close_unit (u);
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#if !HAVE_UNLINK_OPEN_FILE
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if (path != NULL)
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unlink (path);
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#endif
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}
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/* CLOSE on unconnected unit is legal and a no-op: F95 std., 9.3.5. */
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library_end ();
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}
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