74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
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// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "testing/gtest/include/gtest/gtest.h"
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#include "include/libplatform/libplatform.h"
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#include "include/v8-platform.h"
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#include "include/v8.h"
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#include "src/base/macros.h"
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#include "src/base/platform/semaphore.h"
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#include "src/execution.h"
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#include "src/isolate.h"
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#include "src/v8.h"
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#include "test/unittests/test-utils.h"
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namespace v8 {
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typedef TestWithIsolate IsolateTest;
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namespace {
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class MemoryPressureTask : public v8::Task {
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public:
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MemoryPressureTask(Isolate* isolate, base::Semaphore* semaphore)
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: isolate_(isolate), semaphore_(semaphore) {}
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~MemoryPressureTask() override = default;
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// v8::Task implementation.
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void Run() override {
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isolate_->MemoryPressureNotification(MemoryPressureLevel::kCritical);
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semaphore_->Signal();
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}
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private:
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Isolate* isolate_;
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base::Semaphore* semaphore_;
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DISALLOW_COPY_AND_ASSIGN(MemoryPressureTask);
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};
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} // namespace
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// Check that triggering a memory pressure notification on the isolate thread
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// doesn't request a GC interrupt.
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TEST_F(IsolateTest, MemoryPressureNotificationForeground) {
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internal::Isolate* i_isolate =
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reinterpret_cast<internal::Isolate*>(isolate());
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ASSERT_FALSE(i_isolate->stack_guard()->CheckGC());
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isolate()->MemoryPressureNotification(MemoryPressureLevel::kCritical);
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ASSERT_FALSE(i_isolate->stack_guard()->CheckGC());
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}
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// Check that triggering a memory pressure notification on an background thread
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// requests a GC interrupt.
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TEST_F(IsolateTest, MemoryPressureNotificationBackground) {
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internal::Isolate* i_isolate =
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reinterpret_cast<internal::Isolate*>(isolate());
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base::Semaphore semaphore(0);
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internal::V8::GetCurrentPlatform()->CallOnBackgroundThread(
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new MemoryPressureTask(isolate(), &semaphore),
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v8::Platform::kShortRunningTask);
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semaphore.Wait();
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ASSERT_TRUE(i_isolate->stack_guard()->CheckGC());
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v8::platform::PumpMessageLoop(internal::V8::GetCurrentPlatform(), isolate());
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}
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} // namespace v8
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