blob: 4b323de4735708fece0f28e1232085e9ba53a880 (
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
|
// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#ifndef CEPH_COMMON_SIGNAL_H
#define CEPH_COMMON_SIGNAL_H
#include <signal.h>
#include <string>
// Returns a string showing the set of blocked signals for the calling thread.
// Other threads may have a different set (this is per-thread thing).
extern std::string signal_mask_to_str();
// Block a list of signals. If siglist == NULL, blocks all signals.
// If not, the list is terminated with a 0 element.
//
// On success, stores the old set of blocked signals in
// old_sigset. On failure, stores an invalid set of blocked signals in
// old_sigset.
extern void block_signals(const int *siglist, sigset_t *old_sigset);
// Restore the set of blocked signals. Will not restore an invalid set of
// blocked signals.
extern void restore_sigset(const sigset_t *old_sigset);
// Unblock all signals. On success, stores the old set of blocked signals in
// old_sigset. On failure, stores an invalid set of blocked signals in
// old_sigset.
extern void unblock_all_signals(sigset_t *old_sigset);
#endif
|
