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/*
* Copyright (C) 2016 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 <wtf/CrossThreadTask.h>
#include <wtf/HashCountedSet.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/text/StringHash.h>
namespace TestWebKitAPI {
static size_t totalDestructorCalls;
static size_t totalIsolatedCopyCalls;
static HashCountedSet<String> defaultConstructorSet;
static HashCountedSet<String> nameConstructorSet;
static HashCountedSet<String> copyConstructorSet;
static HashCountedSet<String> moveConstructorSet;
struct LifetimeLogger {
LifetimeLogger()
{
defaultConstructorSet.add(fullName());
}
LifetimeLogger(const char* inputName)
: name(*inputName)
{
nameConstructorSet.add(fullName());
}
LifetimeLogger(const LifetimeLogger& other)
: name(other.name)
, copyGeneration(other.copyGeneration + 1)
, moveGeneration(other.moveGeneration)
{
copyConstructorSet.add(fullName());
}
LifetimeLogger(LifetimeLogger&& other)
: name(other.name)
, copyGeneration(other.copyGeneration)
, moveGeneration(other.moveGeneration + 1)
{
moveConstructorSet.add(fullName());
}
~LifetimeLogger()
{
++totalDestructorCalls;
}
LifetimeLogger isolatedCopy() const
{
++totalIsolatedCopyCalls;
return LifetimeLogger(*this);
}
String fullName()
{
StringBuilder builder;
builder.append(&name);
builder.append("-");
builder.append(String::number(copyGeneration));
builder.append("-");
builder.append(String::number(moveGeneration));
return builder.toString();
}
const char& name { *"<default>" };
int copyGeneration { 0 };
int moveGeneration { 0 };
};
void testFunction(const LifetimeLogger&, const LifetimeLogger&, const LifetimeLogger&)
{
// Do nothing - Just need to check the side effects of the arguments getting in here.
}
TEST(WTF_CrossThreadTask, Basic)
{
{
LifetimeLogger logger1;
LifetimeLogger logger2(logger1);
LifetimeLogger logger3("logger");
auto task = createCrossThreadTask(testFunction, logger1, logger2, logger3);
task.performTask();
}
ASSERT_EQ(1u, defaultConstructorSet.size());
ASSERT_EQ(1u, defaultConstructorSet.count("<default>-0-0"_s));
ASSERT_EQ(1u, nameConstructorSet.size());
ASSERT_EQ(1u, nameConstructorSet.count("logger-0-0"_s));
ASSERT_EQ(3u, copyConstructorSet.size());
ASSERT_EQ(1u, copyConstructorSet.count("logger-1-0"_s));
ASSERT_EQ(2u, copyConstructorSet.count("<default>-1-0"_s));
ASSERT_EQ(1u, copyConstructorSet.count("<default>-2-0"_s));
#if !COMPILER(MSVC)
ASSERT_EQ(6u, moveConstructorSet.size());
#else
// The number of times the move constructor is called is different on Windows in this test.
// This seems to be caused by differences in MSVC's implementation of lambdas or std functions like std::make_tuple.
ASSERT_EQ(9u, moveConstructorSet.size());
#endif
ASSERT_EQ(1u, moveConstructorSet.count("logger-1-1"_s));
ASSERT_EQ(1u, moveConstructorSet.count("logger-1-2"_s));
ASSERT_EQ(1u, moveConstructorSet.count("<default>-2-1"_s));
ASSERT_EQ(1u, moveConstructorSet.count("<default>-2-2"_s));
ASSERT_EQ(1u, moveConstructorSet.count("<default>-1-1"_s));
ASSERT_EQ(1u, moveConstructorSet.count("<default>-1-2"_s));
#if !COMPILER(MSVC)
ASSERT_EQ(12u, totalDestructorCalls);
#else
// Since the move constructor is called 3 more times on Windows (see above), we will have 3 more destructor calls.
ASSERT_EQ(15u, totalDestructorCalls);
#endif
ASSERT_EQ(3u, totalIsolatedCopyCalls);
}
} // namespace TestWebKitAPI
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