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// Copyright (c) 2013 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 <string>
#include "base/bind.h"
#include "base/callback.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "ppapi/shared_impl/proxy_lock.h"
#include "ppapi/shared_impl/test_globals.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ppapi {
namespace {
bool expect_to_be_locked = false;
void CheckLockState() {
if (expect_to_be_locked) {
ProxyLock::AssertAcquired();
} else {
// If we expect to be unlocked, try to lock. We rely on the checking inside
// base::Lock that prevents recursive locking.
ProxyAutoLock lock;
}
}
int called_num = 0;
class CheckLockStateInDestructor
: public base::RefCounted<CheckLockStateInDestructor> {
public:
CheckLockStateInDestructor() {}
void Method() { ++called_num; }
private:
friend class base::RefCounted<CheckLockStateInDestructor>;
~CheckLockStateInDestructor() { CheckLockState(); }
DISALLOW_COPY_AND_ASSIGN(CheckLockStateInDestructor);
};
void TestCallback_0() {
CheckLockState();
++called_num;
}
void TestCallback_1(int p1) {
CheckLockState();
++called_num;
}
void TestCallback_2(int p1, const std::string& p2) {
CheckLockState();
++called_num;
}
struct Param {};
void TestCallback_3(int p1, const std::string& p2, Param p3) {
CheckLockState();
++called_num;
}
} // namespace
TEST(PpapiProxyLockTest, Locking) {
TestGlobals globals;
expect_to_be_locked = true;
base::Callback<void()> cb0;
{
ProxyAutoLock lock;
cb0 = RunWhileLocked(base::Bind(TestCallback_0));
}
cb0.Run();
ASSERT_EQ(1, called_num);
called_num = 0;
{
ProxyAutoLock lock;
cb0 = RunWhileLocked(base::Bind(TestCallback_1, 123));
}
cb0.Run();
ASSERT_EQ(1, called_num);
called_num = 0;
{
ProxyAutoLock lock;
scoped_refptr<CheckLockStateInDestructor> object =
new CheckLockStateInDestructor();
cb0 =
RunWhileLocked(base::Bind(&CheckLockStateInDestructor::Method, object));
// Note after this scope, the Callback owns the only reference.
}
cb0.Run();
ASSERT_EQ(1, called_num);
called_num = 0;
base::Callback<void(int)> cb1;
{
ProxyAutoLock lock;
cb1 = RunWhileLocked(base::Bind(TestCallback_1));
}
cb1.Run(123);
ASSERT_EQ(1, called_num);
called_num = 0;
base::Callback<void(int, const std::string&)> cb2;
{
ProxyAutoLock lock;
cb2 = RunWhileLocked(base::Bind(TestCallback_2));
}
cb2.Run(123, std::string("yo"));
ASSERT_EQ(1, called_num);
called_num = 0;
base::Callback<void(int, const std::string&, Param)> cb3;
{
ProxyAutoLock lock;
cb3 = RunWhileLocked(base::Bind(TestCallback_3));
}
cb3.Run(123, std::string("yo"), Param());
ASSERT_EQ(1, called_num);
called_num = 0;
base::Callback<void(const std::string&)> cb1_string;
{
ProxyAutoLock lock;
cb1_string = RunWhileLocked(base::Bind(TestCallback_2, 123));
}
cb1_string.Run(std::string("yo"));
ASSERT_EQ(1, called_num);
called_num = 0;
{
ProxyAutoLock lock;
cb0 = RunWhileLocked(base::Bind(TestCallback_2, 123, std::string("yo")));
}
cb0.Run();
ASSERT_EQ(1, called_num);
called_num = 0;
}
TEST(PpapiProxyLockTest, Unlocking) {
TestGlobals globals;
expect_to_be_locked = false;
// These calls should all try to _unlock_, so we must be locked before
// entering them.
ProxyAutoLock auto_lock;
{
CallWhileUnlocked(TestCallback_0);
ASSERT_EQ(1, called_num);
called_num = 0;
}
{
CallWhileUnlocked(TestCallback_1, 123);
ASSERT_EQ(1, called_num);
called_num = 0;
}
{
// TODO(dmichael): Make const-ref arguments work properly with type
// deduction.
CallWhileUnlocked<void, int, const std::string&>(
TestCallback_2, 123, std::string("yo"));
ASSERT_EQ(1, called_num);
called_num = 0;
}
{
base::Callback<void()> callback(base::Bind(TestCallback_0));
CallWhileUnlocked(callback);
ASSERT_EQ(1, called_num);
called_num = 0;
}
}
} // namespace ppapi
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