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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/shared_impl/thread_aware_callback.h"
#include "base/bind_helpers.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/memory/scoped_ptr.h"
#include "ppapi/c/pp_errors.h"
#include "ppapi/proxy/ppapi_proxy_test.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ppapi {
namespace {
class TestParameter {
public:
TestParameter() : value_(0) {}
int value_;
};
int called_num = 0;
void TestCallback_0() { ++called_num; }
void TestCallback_1(int p1) { ++called_num; }
void TestCallback_2(int p1, const double* p2) { ++called_num; }
void TestCallback_3(int p1, const double* p2, bool* p3) { ++called_num; }
void TestCallback_4(int p1, const double* p2, bool* p3, TestParameter p4) {
++called_num;
}
void TestCallback_5(int p1,
const double* p2,
bool* p3,
TestParameter p4,
const TestParameter& p5) {
++called_num;
}
typedef proxy::PluginProxyTest ThreadAwareCallbackTest;
// Test that a callback created on the main thread will run on the main thread,
// even when requested from a different thread.
class ThreadAwareCallbackMultiThreadTest
: public proxy::PluginProxyMultiThreadTest {
public:
ThreadAwareCallbackMultiThreadTest() : main_thread_callback_called_(false) {}
virtual ~ThreadAwareCallbackMultiThreadTest() {
CHECK(main_thread_callback_called_);
}
// proxy::PluginProxyMultiThreadTest implementation.
virtual void SetUpTestOnMainThread() override {
ProxyAutoLock auto_lock;
main_thread_callback_.reset(
ThreadAwareCallback<CallbackFunc>::Create(&MainThreadCallbackBody));
}
virtual void SetUpTestOnSecondaryThread() override {
{
ProxyAutoLock auto_lock;
main_thread_callback_->RunOnTargetThread(this);
}
PostQuitForSecondaryThread();
PostQuitForMainThread();
}
private:
typedef void (*CallbackFunc)(ThreadAwareCallbackMultiThreadTest*);
static void MainThreadCallbackBody(ThreadAwareCallbackMultiThreadTest* thiz) {
thiz->CheckOnThread(MAIN_THREAD);
thiz->main_thread_callback_called_ = true;
{
ProxyAutoLock auto_lock;
// We have to destroy it prior to the PluginGlobals instance held by the
// base class. Otherwise it has a ref to Pepper message loop for the main
// thread and the PluginGlobals destructor will complain.
thiz->main_thread_callback_.reset(NULL);
}
}
scoped_ptr<ThreadAwareCallback<CallbackFunc> > main_thread_callback_;
bool main_thread_callback_called_;
};
// Test that when a ThreadAwareCallback instance is destroyed, pending tasks to
// run the callback will be ignored.
class ThreadAwareCallbackAbortTest : public proxy::PluginProxyMultiThreadTest {
public:
ThreadAwareCallbackAbortTest() {}
virtual ~ThreadAwareCallbackAbortTest() {}
// proxy::PluginProxyMultiThreadTest implementation.
virtual void SetUpTestOnMainThread() override {
ProxyAutoLock auto_lock;
main_thread_callback_.reset(
ThreadAwareCallback<CallbackFunc>::Create(&MainThreadCallbackBody));
}
virtual void SetUpTestOnSecondaryThread() override {
{
ProxyAutoLock auto_lock;
main_thread_message_loop_proxy_->PostTask(
FROM_HERE,
base::Bind(&ThreadAwareCallbackAbortTest::DeleteCallback,
base::Unretained(this)));
// |main_thread_callback_| is still valid, even if DeleteCallback() can be
// called before this following statement. That is because |auto_lock| is
// still held by this method, which prevents DeleteCallback() from
// deleting the callback.
main_thread_callback_->RunOnTargetThread(this);
}
PostQuitForSecondaryThread();
PostQuitForMainThread();
}
private:
typedef void (*CallbackFunc)(ThreadAwareCallbackAbortTest*);
static void MainThreadCallbackBody(ThreadAwareCallbackAbortTest* thiz) {
// The callback should not be called.
ASSERT_TRUE(false);
}
void DeleteCallback() {
ProxyAutoLock auto_lock;
main_thread_callback_.reset(NULL);
}
scoped_ptr<ThreadAwareCallback<CallbackFunc> > main_thread_callback_;
};
} // namespace
TEST_F(ThreadAwareCallbackTest, Basics) {
// ThreadAwareCallback should only be used when the proxy lock has been
// acquired.
ProxyAutoLock auto_lock;
double double_arg = 0.0;
bool bool_arg = false;
TestParameter object_arg;
// Exercise all the template code.
called_num = 0;
typedef void (*FuncType_0)();
scoped_ptr<ThreadAwareCallback<FuncType_0> > callback_0(
ThreadAwareCallback<FuncType_0>::Create(TestCallback_0));
callback_0->RunOnTargetThread();
typedef void (*FuncType_1)(int);
scoped_ptr<ThreadAwareCallback<FuncType_1> > callback_1(
ThreadAwareCallback<FuncType_1>::Create(TestCallback_1));
callback_1->RunOnTargetThread(1);
typedef void (*FuncType_2)(int, const double*);
scoped_ptr<ThreadAwareCallback<FuncType_2> > callback_2(
ThreadAwareCallback<FuncType_2>::Create(TestCallback_2));
callback_2->RunOnTargetThread(1, &double_arg);
typedef void (*FuncType_3)(int, const double*, bool*);
scoped_ptr<ThreadAwareCallback<FuncType_3> > callback_3(
ThreadAwareCallback<FuncType_3>::Create(TestCallback_3));
callback_3->RunOnTargetThread(1, &double_arg, &bool_arg);
typedef void (*FuncType_4)(int, const double*, bool*, TestParameter);
scoped_ptr<ThreadAwareCallback<FuncType_4> > callback_4(
ThreadAwareCallback<FuncType_4>::Create(TestCallback_4));
callback_4->RunOnTargetThread(1, &double_arg, &bool_arg, object_arg);
typedef void (*FuncType_5)(
int, const double*, bool*, TestParameter, const TestParameter&);
scoped_ptr<ThreadAwareCallback<FuncType_5> > callback_5(
ThreadAwareCallback<FuncType_5>::Create(TestCallback_5));
callback_5->RunOnTargetThread(
1, &double_arg, &bool_arg, object_arg, object_arg);
EXPECT_EQ(6, called_num);
}
TEST_F(ThreadAwareCallbackMultiThreadTest, RunOnTargetThread) { RunTest(); }
TEST_F(ThreadAwareCallbackAbortTest, NotRunIfAborted) { RunTest(); }
} // namespace ppapi
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