1 /* -*- mode: C -*- */
2 /*
3 IGraph library.
4 Copyright (C) 2005-2012 Gabor Csardi <csardi.gabor@gmail.com>
5 334 Harvard street, Cambridge, MA 02139 USA
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 02110-1301 USA
21
22 */
23
24 #include "igraph_interrupt.h"
25 #include "config.h"
26
27 IGRAPH_THREAD_LOCAL igraph_interruption_handler_t
28 *igraph_i_interruption_handler = 0;
29
igraph_allow_interruption(void * data)30 int igraph_allow_interruption(void* data) {
31 if (igraph_i_interruption_handler) {
32 return igraph_i_interruption_handler(data);
33 }
34 return IGRAPH_SUCCESS;
35 }
36
37 igraph_interruption_handler_t *
igraph_set_interruption_handler(igraph_interruption_handler_t * new_handler)38 igraph_set_interruption_handler (igraph_interruption_handler_t * new_handler) {
39 igraph_interruption_handler_t * previous_handler = igraph_i_interruption_handler;
40 igraph_i_interruption_handler = new_handler;
41 return previous_handler;
42 }
43