0e63fb5593
For verification of blocked suspend or other unit testing, the spinloop is fine. However, making it sleep so that it is more viable to assist with power testing or for any other test where avoiding changes to device performance is important. Bug: N/A Test: run, and ps: root 4179 4168 18720 4724 __se_sys_nanosleep_time32 0 S block_suspend Change-Id: I81545ae7db1c1fad2cb94d00456d1a6773868111
41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <unistd.h>
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#include <iostream>
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#include <wakelock/wakelock.h>
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static constexpr const char *gWakeLockName = "block_suspend";
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static void usage() {
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std::cout << "Usage: block_suspend\n"
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<< "Prevent device from suspending indefinitely. "
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<< "Process must be killed to unblock suspend.\n";
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}
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int main(int argc, char ** /* argv */) {
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if (argc > 1) {
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usage();
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return 0;
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}
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android::wakelock::WakeLock wl{gWakeLockName}; // RAII object
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while (true) { sleep(1000000); };
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std::abort(); // should never reach here
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return 0;
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}
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