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/*
* Copyright (C) 2015 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "Test.h"
#include "Utilities.h"
#include <wtf/CheckedPtr.h>
#include <wtf/RunLoop.h>
#include <wtf/Threading.h>
#include <wtf/threads/BinarySemaphore.h>
namespace TestWebKitAPI {
static bool testFinished;
static int count = 100;
TEST(WTF_RunLoop, Deadlock)
{
WTF::initializeMainThread();
struct DispatchFromDestructorTester {
~DispatchFromDestructorTester() {
RunLoop::mainSingleton().dispatch([] {
if (!(--count))
testFinished = true;
});
}
};
for (int i = 0; i < count; ++i) {
auto capture = std::make_shared<DispatchFromDestructorTester>();
RunLoop::mainSingleton().dispatch([capture] { });
}
Util::run(&testFinished);
}
TEST(WTF_RunLoop, NestedInOrder)
{
WTF::initializeMainThread();
bool done = false;
bool didExecuteOuter = false;
RunLoop::mainSingleton().dispatch([&done, &didExecuteOuter] {
RunLoop::mainSingleton().dispatch([&done, &didExecuteOuter] {
EXPECT_TRUE(didExecuteOuter);
done = true;
});
Util::run(&done);
});
RunLoop::mainSingleton().dispatch([&didExecuteOuter] {
didExecuteOuter = true;
});
Util::run(&done);
}
TEST(WTF_RunLoop, DispatchCrossThreadWhileNested)
{
WTF::initializeMainThread();
bool done = false;
RunLoop::mainSingleton().dispatch([&done] {
Thread::create("DispatchCrossThread"_s, [&done] {
RunLoop::mainSingleton().dispatch([&done] {
done = true;
});
});
Util::run(&done);
});
RunLoop::mainSingleton().dispatch([] { });
Util::run(&done);
}
TEST(WTF_RunLoop, CallOnMainCrossThreadWhileNested)
{
WTF::initializeMainThread();
bool done = false;
callOnMainThread([&done] {
Thread::create("CallOnMainCrossThread"_s, [&done] {
callOnMainThread([&done] {
done = true;
});
});
Util::run(&done);
});
callOnMainThread([] { });
Util::run(&done);
}
class DerivedOneShotTimer : public CanMakeWeakPtr<DerivedOneShotTimer>, public CanMakeCheckedPtr<DerivedOneShotTimer>, public RunLoop::Timer {
WTF_DEPRECATED_MAKE_FAST_ALLOCATED(DerivedOneShotTimer);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(DerivedOneShotTimer);
public:
DerivedOneShotTimer(bool& testFinished)
: RunLoop::Timer(RunLoop::currentSingleton(), "DerivedOneShotTimer"_s, this, &DerivedOneShotTimer::fired)
, m_testFinished(testFinished)
{
}
void fired()
{
EXPECT_FALSE(isActive());
EXPECT_EQ(secondsUntilFire(), Seconds(0));
m_testFinished = true;
stop();
}
private:
bool& m_testFinished;
};
TEST(WTF_RunLoop, OneShotTimer)
{
WTF::initializeMainThread();
bool testFinished = false;
auto timer = makeUniqueRef<DerivedOneShotTimer>(testFinished);
timer->startOneShot(100_ms);
Util::run(&testFinished);
}
class DerivedRepeatingTimer : public CanMakeWeakPtr<DerivedRepeatingTimer>, public CanMakeCheckedPtr<DerivedRepeatingTimer>, public RunLoop::Timer {
WTF_DEPRECATED_MAKE_FAST_ALLOCATED(DerivedRepeatingTimer);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(DerivedRepeatingTimer);
public:
DerivedRepeatingTimer(bool& testFinished)
: RunLoop::Timer(RunLoop::currentSingleton(), "DerivedRepeatingTimer"_s, this, &DerivedRepeatingTimer::fired)
, m_testFinished(testFinished)
{
}
void fired()
{
EXPECT_TRUE(isActive());
if (++m_count == 10) {
m_testFinished = true;
stop();
EXPECT_FALSE(isActive());
EXPECT_EQ(secondsUntilFire(), Seconds(0));
}
}
private:
unsigned m_count { 0 };
bool& m_testFinished;
};
TEST(WTF_RunLoop, RepeatingTimer)
{
WTF::initializeMainThread();
bool testFinished = false;
auto timer = makeUniqueRef<DerivedRepeatingTimer>(testFinished);
timer->startRepeating(10_ms);
Util::run(&testFinished);
ASSERT_FALSE(timer->isActive());
}
TEST(WTF_RunLoop, ManyTimes)
{
class Counter {
public:
void run()
{
if (++m_count == 100000) {
RunLoop::currentSingleton().stop();
return;
}
RunLoop::currentSingleton().dispatch([this] {
run();
});
}
private:
unsigned m_count { 0 };
};
Thread::create("RunLoopManyTimes"_s, [] {
Counter counter;
RunLoop::currentSingleton().dispatch([&counter] {
counter.run();
});
RunLoop::run();
})->waitForCompletion();
}
TEST(WTF_RunLoop, ThreadTerminationSelfReferenceCleanup)
{
RefPtr<RunLoop> runLoop;
Thread::create("RunLoopThreadTerminationSelfReferenceCleanup"_s, [&] {
runLoop = &RunLoop::currentSingleton();
// This stores a RunLoop reference in the dispatch queue that will not be released
// via the usual dispatch, but should still be released upon thread termination.
// After that, the observing RefPtr should be the only one holding a reference
// to the RunLoop object.
runLoop->dispatch([ref = runLoop.copyRef()] { });
})->waitForCompletion();
EXPECT_TRUE(runLoop->hasOneRef());
}
TEST(WTF_RunLoop, CapabilityIsCurrentIsSupported)
{
WTF::initializeMainThread();
struct {
int i WTF_GUARDED_BY_CAPABILITY(RunLoop::mainSingleton()) { 77 };
} z;
assertIsCurrent(RunLoop::mainSingleton());
bool result = z.i == 77;
EXPECT_TRUE(result);
}
TEST(WTF_RunLoopDeathTest, MAYBE_ASSERT_ENABLED_DEATH_TEST(CapabilityIsCurrentFailureAsserts))
{
::testing::FLAGS_gtest_death_test_style = "threadsafe";
ASSERT_DEATH_IF_SUPPORTED({
WTF::initializeMainThread();
Thread::create("CapabilityIsCurrentNegative thread"_s, [&] {
assertIsCurrent(RunLoop::mainSingleton()); // This should assert.
})->waitForCompletion();
}, "ASSERTION FAILED: runLoop.isCurrent\\(\\)");
}
TEST(WTF_RunLoop, Create)
{
RefPtr<RunLoop> runLoop = RunLoop::create("RunLoopCreateTestThread"_s, ThreadType::Unknown);
Thread* runLoopThread = nullptr;
{
BinarySemaphore semaphore;
runLoop->dispatch([&] {
runLoopThread = &Thread::currentSingleton();
semaphore.signal();
});
semaphore.wait();
}
EXPECT_TRUE(Thread::allThreads().contains(*runLoopThread));
runLoop->dispatch([] {
RunLoop::currentSingleton().stop();
});
runLoop = nullptr;
Util::runFor(.2_s);
// Expect that RunLoop Thread does not leak.
EXPECT_FALSE(Thread::allThreads().contains(*runLoopThread));
}
// FIXME(https://bugs.webkit.org/show_bug.cgi?id=246569): glib and Windows runloop does not match Cocoa.
#if USE(GLIB) || OS(WINDOWS)
#define MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration1 DISABLED_DispatchInRunLoopIterationDispatchesOnNextIteration1
#define MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration2 DISABLED_DispatchInRunLoopIterationDispatchesOnNextIteration2
#else
#define MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration1 DispatchInRunLoopIterationDispatchesOnNextIteration1
#define MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration2 DispatchInRunLoopIterationDispatchesOnNextIteration2
#endif
// Tests that RunLoop::dispatch() respects run loop iteration isolation. E.g. all functions
// dispatched within a run loop iteration will be executed on subsequent iteration.
// Note: At the time of writing, run loop iteration isolation is not respected by
// RunLoop::dispatchAfter().
TEST(WTF_RunLoop, MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration1)
{
WTF::initializeMainThread();
auto& runLoop = RunLoop::currentSingleton();
bool outer = false;
bool inner = false;
int i = 0;
for (; i < 100; ++i) {
SCOPED_TRACE(i);
runLoop.dispatch([&] {
outer = true;
runLoop.dispatch([&] {
inner = true;
});
// No matter how long the runloop task takes, all dispatch()es
// will execute on the next iteration.
sleep(Seconds { i / 100000. });
});
EXPECT_FALSE(outer);
EXPECT_FALSE(inner);
runLoop.cycle();
EXPECT_TRUE(outer);
EXPECT_FALSE(inner);
runLoop.cycle();
EXPECT_TRUE(outer);
EXPECT_TRUE(inner);
inner = outer = false;
}
// Cleanup local references.
bool done = false;
runLoop.dispatch([&] {
done = true;
});
while (!done)
runLoop.cycle();
}
TEST(WTF_RunLoop, MAYBE_DispatchInRunLoopIterationDispatchesOnNextIteration2)
{
WTF::initializeMainThread();
auto& runLoop = RunLoop::currentSingleton();
int outer = 0;
int inner = 0;
int i = 0;
for (; i < 100; ++i) {
SCOPED_TRACE(i);
runLoop.dispatch([&] {
outer++;
runLoop.dispatch([&] {
inner++;
});
// No matter how long the runloop task takes, all dispatch()es
// will execute on the next iteration.
sleep(Seconds { i / 100000. });
});
}
EXPECT_EQ(outer, 0);
EXPECT_EQ(inner, 0);
runLoop.cycle();
EXPECT_EQ(outer, 100);
EXPECT_EQ(inner, 0);
runLoop.cycle();
EXPECT_EQ(outer, 100);
EXPECT_EQ(inner, 100);
// Cleanup local references.
bool done = false;
runLoop.dispatch([&] {
done = true;
});
while (!done)
runLoop.cycle();
}
} // namespace TestWebKitAPI