blob: c272514f61e7cf9c32cb833b401e613aac590d8d (
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
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* Copyright (C) 2012 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_SIGNAL_SET_H_
#define ART_RUNTIME_SIGNAL_SET_H_
#include <signal.h>
#include "base/logging.h"
namespace art {
class SignalSet {
public:
SignalSet() {
if (sigemptyset(&set_) == -1) {
PLOG(FATAL) << "sigemptyset failed";
}
}
void Add(int signal) {
if (sigaddset(&set_, signal) == -1) {
PLOG(FATAL) << "sigaddset " << signal << " failed";
}
}
void Block() {
if (sigprocmask(SIG_BLOCK, &set_, nullptr) == -1) {
PLOG(FATAL) << "sigprocmask failed";
}
}
int Wait() {
// Sleep in sigwait() until a signal arrives. gdb causes EINTR failures.
int signal_number;
int rc = TEMP_FAILURE_RETRY(sigwait(&set_, &signal_number));
if (rc != 0) {
PLOG(FATAL) << "sigwait failed";
}
return signal_number;
}
private:
sigset_t set_;
};
} // namespace art
#endif // ART_RUNTIME_SIGNAL_SET_H_
|
