91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
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* Copyright (C) 2017 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 "art_method-inl.h"
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#include "base/mutex-inl.h"
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#include "scoped_thread_state_change-inl.h"
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#include "thread-inl.h"
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#include "thread_pool.h"
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namespace art {
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struct TestClosure : public Closure {
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bool first_run_start;
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bool first_run_end;
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bool second_run;
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bool second_run_interleaved;
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void Run(Thread* self) override {
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CHECK_EQ(self, Thread::Current()) << "Not running on target thread!";
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if (!first_run_start) {
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CHECK(!second_run);
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first_run_start = true;
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// Suspend ourself so that we will perform the second run.
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{
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ScopedObjectAccess soa(self);
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self->FullSuspendCheck();
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}
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first_run_end = true;
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} else {
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CHECK(!second_run);
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CHECK(first_run_start);
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second_run = true;
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second_run_interleaved = !first_run_end;
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}
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}
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void Check() {
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CHECK(first_run_start);
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CHECK(first_run_end);
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CHECK(second_run);
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CHECK(second_run_interleaved);
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}
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};
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static TestClosure gTestClosure = {};
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extern "C" JNIEXPORT void JNICALL Java_Main_checkCheckpointsRun(JNIEnv*, jclass) {
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gTestClosure.Check();
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}
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struct SetupClosure : public Closure {
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void Run(Thread* self) override {
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CHECK_EQ(self, Thread::Current()) << "Not running on target thread!";
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ScopedObjectAccess soa(self);
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MutexLock tscl_mu(self, *Locks::thread_suspend_count_lock_);
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// Both should succeed since we are in runnable and have the lock.
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CHECK(self->RequestCheckpoint(&gTestClosure)) << "Could not set first checkpoint.";
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CHECK(self->RequestCheckpoint(&gTestClosure)) << "Could not set second checkpoint.";
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}
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};
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static SetupClosure gSetupClosure = {};
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extern "C" JNIEXPORT void JNICALL Java_Main_pushCheckpoints(JNIEnv*, jclass, jobject thr) {
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Thread* self = Thread::Current();
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ScopedObjectAccess soa(self);
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MutexLock tll_mu(self, *Locks::thread_list_lock_);
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Thread* target = Thread::FromManagedThread(soa, thr);
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while (true) {
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MutexLock tscl_mu(self, *Locks::thread_suspend_count_lock_);
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if (target->RequestCheckpoint(&gSetupClosure)) {
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break;
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}
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}
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}
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} // namespace art
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