1 /*
2 * Copyright 2019 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include <iostream>
18
19 #include <wakelock/wakelock.h>
20
21 static constexpr const char *gWakeLockName = "block_suspend";
22
usage()23 static void usage() {
24 std::cout << "Usage: block_suspend\n"
25 << "Prevent device from suspending indefinitely. "
26 << "Process must be killed to unblock suspend.\n";
27 }
28
main(int argc,char **)29 int main(int argc, char ** /* argv */) {
30 if (argc > 1) {
31 usage();
32 return 0;
33 }
34
35 android::wakelock::WakeLock wl{gWakeLockName}; // RAII object
36 while (true) {};
37 std::abort(); // should never reach here
38 return 0;
39 }
40