| /* Thread/recursion locking |
| Copyright 2002, 2003, 2004, 2005 Free Software Foundation, Inc. |
| Contributed by Paul Brook <paul@nowt.org> and 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 2 of the License, or (at your option) any later version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| 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. |
| |
| You should have received a copy of the GNU General Public |
| License along with libgfortran; see the file COPYING. If not, |
| write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| #include "config.h" |
| #include <string.h> |
| #include "libgfortran.h" |
| #include "io.h" |
| |
| st_parameter ioparm = { }; |
| iexport_data(ioparm); |
| |
| namelist_info *ionml = 0; |
| global_t g = { }; |
| |
| |
| /* library_start()-- Called with a library call is entered. */ |
| |
| void |
| library_start (void) |
| { |
| if (g.in_library) |
| internal_error ("Recursive library calls not allowed"); |
| |
| /* The in_library flag indicates whether we're currently processing a |
| library call. Some calls leave immediately, but READ and WRITE |
| processing return control to the caller but are still considered to |
| stay within the library. */ |
| g.in_library = 1; |
| |
| if (ioparm.iostat != NULL && ioparm.library_return == LIBRARY_OK) |
| *ioparm.iostat = ERROR_OK; |
| |
| ioparm.library_return = LIBRARY_OK; |
| } |
| |
| |
| /* library_end()-- Called when a library call is complete in order to |
| clean up for the next call. */ |
| |
| void |
| library_end (void) |
| { |
| int t; |
| namelist_info * t1, *t2; |
| |
| g.in_library = 0; |
| filename = NULL; |
| line = 0; |
| t = ioparm.library_return; |
| |
| /* Delete the namelist, if it exists. */ |
| |
| if (ionml != NULL) |
| { |
| t1 = ionml; |
| while (t1 != NULL) |
| { |
| t2 = t1; |
| t1 = t1->next; |
| free_mem (t2->var_name); |
| if (t2->var_rank) |
| { |
| free_mem (t2->dim); |
| free_mem (t2->ls); |
| } |
| free_mem (t2); |
| } |
| } |
| ionml = NULL; |
| |
| memset (&ioparm, '\0', sizeof (ioparm)); |
| ioparm.library_return = t; |
| } |