| /* 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 <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 (); |
| } |