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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "qpid/sys/Runnable.h"
#include "qpid/sys/Thread.h"
#include "qpid/sys/Mutex.h"
#include "qpid/sys/Serializer.h"
#include <boost/bind.hpp>
#include <boost/utility/value_init.hpp>
#include "unit_test.h"
#include <set>
#include <unistd.h>
QPID_AUTO_TEST_SUITE(SerializerTestSuite)
using namespace qpid;
using namespace qpid::sys;
using namespace qpid::framing;
using namespace std;
typedef Serializer<boost::function<void()> > BoostFunctionSerializer;
/** Test for concurrent calls */
struct Tester {
Monitor lock;
size_t count;
size_t collisions;
set<long> threads;
Tester() : count(0), collisions(0) {}
void test() {
if (lock.trylock()) { // Check for concurrent calls.
++count;
threads.insert(Thread::logId()); // Record thread.
usleep(1000); // Encourage overlap.
lock.notify();
lock.unlock();
}
else
++collisions;
}
};
void execute(BoostFunctionSerializer& s, boost::function<void()> t)
{
s.execute(t);
}
BOOST_AUTO_TEST_CASE(testSingleThread) {
// Verify that we call in the same thread by default.
Tester tester;
BoostFunctionSerializer s;
for (int i = 0; i < 100; ++i)
execute(s, boost::bind(&Tester::test, &tester));
// All should be executed in this thread.
BOOST_CHECK_EQUAL(0u, tester.collisions);
BOOST_CHECK_EQUAL(100u, tester.count);
BOOST_REQUIRE_EQUAL(1u, tester.threads.size());
BOOST_CHECK_EQUAL(Thread::logId(), *tester.threads.begin());
}
BOOST_AUTO_TEST_CASE(testSingleThreadNoImmediate) {
// Verify that we call in different thread if immediate=false.
Tester tester;
BoostFunctionSerializer s(false);
for (int i = 0; i < 100; ++i)
execute(s, boost::bind(&Tester::test, &tester));
{
// Wait for dispatch thread to complete.
Mutex::ScopedLock l(tester.lock);
while (tester.count != 100)
tester.lock.wait();
}
BOOST_CHECK_EQUAL(0u, tester.collisions);
BOOST_CHECK_EQUAL(100u, tester.count);
BOOST_REQUIRE_EQUAL(1u, tester.threads.size());
BOOST_CHECK(Thread::logId() != *tester.threads.begin());
}
struct Caller : public Runnable, public Tester {
Caller(BoostFunctionSerializer& s) : serializer(s) {}
void run() { execute(serializer, boost::bind(&Tester::test, this)); }
BoostFunctionSerializer& serializer;
};
BOOST_AUTO_TEST_CASE(testDispatchThread) {
BoostFunctionSerializer s;
Caller caller(s);
Thread threads[100];
// Concurrent calls.
for (size_t i = 0; i < 100; ++i)
threads[i] = Thread(caller);
for (size_t i = 0; i < 100; ++i)
threads[i].join();
// At least one task should have been queued.
BOOST_CHECK_EQUAL(0u, caller.collisions);
BOOST_CHECK(caller.threads.size() > 2u);
BOOST_CHECK(caller.threads.size() < 100u);
}
std::auto_ptr<BoostFunctionSerializer> serializer;
struct CallDispatch : public Runnable {
void run() {
serializer->dispatch();
}
};
void notifyDispatch() {
static CallDispatch cd;
Thread t(cd);
}
// Use externally created threads.
BOOST_AUTO_TEST_CASE(testExternalDispatch) {
serializer.reset(new BoostFunctionSerializer(false, ¬ifyDispatch));
Tester tester;
for (int i = 0; i < 100; ++i)
execute(*serializer, boost::bind(&Tester::test, &tester));
{
// Wait for dispatch thread to complete.
Mutex::ScopedLock l(tester.lock);
while (tester.count != 100)
tester.lock.wait();
}
BOOST_CHECK_EQUAL(0u, tester.collisions);
BOOST_CHECK_EQUAL(100u, tester.count);
BOOST_CHECK(Thread::logId() != *tester.threads.begin());
}
QPID_AUTO_TEST_SUITE_END()
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