blob: 08171fb6785341ca8192cffffb65597be13b22d4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*************************************************************************
** SignalHandler.h **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2016 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program 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 of **
** the License, or (at your option) any later version. **
** **
** This program 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 this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#ifndef DVISVGM_SIGNALHANDLER_H
#define DVISVGM_SIGNALHANDLER_H
#include <exception>
struct SignalException : public std::exception {
};
class SignalHandler
{
public:
~SignalHandler ();
static SignalHandler& instance ();
bool start ();
void stop ();
void check ();
void trigger (bool notify);
bool active () const {return _active;}
protected:
SignalHandler () : _active(false) {}
static void callback (int signal);
private:
bool _active; ///< true if listening for signals
static bool _break; ///< true if signal has been caught
};
#endif
|
