66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/*
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* Copyright (C) 2016 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 "base/time_utils.h"
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#include "jni.h"
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#include "runtime.h"
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#include "thread_list.h"
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namespace art {
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extern "C" JNIEXPORT void JNICALL Java_Main_suspendAndResume(JNIEnv*, jclass) {
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static constexpr size_t kInitialSleepUS = 100 * 1000; // 100ms.
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usleep(kInitialSleepUS); // Leave some time for threads to get in here before we start suspending.
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enum Operation {
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kOPSuspendAll,
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kOPDumpStack,
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kOPSuspendAllDumpStack,
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// Total number of operations.
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kOPNumber,
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};
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const uint64_t start_time = NanoTime();
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size_t iterations = 0;
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// Run for a fixed period of 10 seconds.
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while (NanoTime() - start_time < MsToNs(10 * 1000)) {
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switch (static_cast<Operation>(iterations % kOPNumber)) {
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case kOPSuspendAll: {
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ScopedSuspendAll ssa(__FUNCTION__);
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usleep(500);
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break;
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}
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case kOPDumpStack: {
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Runtime::Current()->GetThreadList()->Dump(LOG_STREAM(INFO));
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usleep(500);
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break;
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}
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case kOPSuspendAllDumpStack: {
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// Not yet supported.
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if ((false)) {
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ScopedSuspendAll ssa(__FUNCTION__);
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Runtime::Current()->GetThreadList()->Dump(LOG_STREAM(INFO));
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}
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break;
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}
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case kOPNumber:
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break;
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}
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++iterations;
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}
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LOG(INFO) << "Did " << iterations << " iterations";
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}
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} // namespace art
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