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// (C) Copyright 2006-7 Anthony Williams
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#define BOOST_THREAD_VERSION 2
#define BOOST_TEST_MODULE Boost.Threads: shared_mutex_locks_chrono test suite
#include <boost/test/unit_test.hpp>
#include <boost/thread/thread.hpp>
#include <boost/thread/shared_mutex.hpp>
#include "./util.inl"
#include "./shared_mutex_locking_thread.hpp"
#if defined BOOST_THREAD_USES_CHRONO
#define CHECK_LOCKED_VALUE_EQUAL(mutex_name,value,expected_value) \
{ \
boost::unique_lock<boost::mutex> lock(mutex_name); \
BOOST_CHECK_EQUAL(value,expected_value); \
}
BOOST_AUTO_TEST_CASE(test_timed_lock_shared_times_out_if_write_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
unsigned unblocked_count=0;
boost::unique_lock<boost::mutex> finish_lock(finish_mutex);
boost::thread writer(simple_writing_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count));
boost::this_thread::sleep_for(boost::chrono::seconds(1));
CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u);
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_shared_until(timeout);
BOOST_CHECK((timeout-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_shared_for(wait_duration);
BOOST_CHECK((timeout2-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
finish_lock.unlock();
writer.join();
}
BOOST_AUTO_TEST_CASE(test_timed_lock_shared_succeeds_if_no_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_shared_until(timeout);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_shared_for(wait_duration);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout2);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
}
BOOST_AUTO_TEST_CASE(test_timed_lock_shared_succeeds_if_read_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
unsigned unblocked_count=0;
boost::unique_lock<boost::mutex> finish_lock(finish_mutex);
boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count));
boost::this_thread::sleep_for(boost::chrono::seconds(1));
CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u);
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_shared_until(timeout);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_shared_for(wait_duration);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout2);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
finish_lock.unlock();
reader.join();
}
BOOST_AUTO_TEST_CASE(test_timed_lock_times_out_if_write_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
unsigned unblocked_count=0;
boost::unique_lock<boost::mutex> finish_lock(finish_mutex);
boost::thread writer(simple_writing_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count));
boost::this_thread::sleep_for(boost::chrono::seconds(1));
CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u);
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_until(timeout);
BOOST_CHECK((timeout-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_for(wait_duration);
BOOST_CHECK((timeout2-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
finish_lock.unlock();
writer.join();
}
BOOST_AUTO_TEST_CASE(test_timed_lock_succeeds_if_no_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_until(timeout);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_for(wait_duration);
BOOST_CHECK(boost::chrono::steady_clock::now()<timeout2);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
}
BOOST_AUTO_TEST_CASE(test_timed_lock_times_out_if_read_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
unsigned unblocked_count=0;
boost::unique_lock<boost::mutex> finish_lock(finish_mutex);
boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count));
boost::this_thread::sleep_for(boost::chrono::seconds(1));
CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u);
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
boost::chrono::milliseconds const timeout_resolution(50);
bool timed_lock_succeeded=rw_mutex.try_lock_until(timeout);
BOOST_CHECK((timeout-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
boost::chrono::milliseconds const wait_duration(500);
boost::chrono::steady_clock::time_point const timeout2=boost::chrono::steady_clock::now()+wait_duration;
timed_lock_succeeded=rw_mutex.try_lock_for(wait_duration);
BOOST_CHECK((timeout2-timeout_resolution)<boost::chrono::steady_clock::now());
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
finish_lock.unlock();
reader.join();
}
BOOST_AUTO_TEST_CASE(test_timed_lock_times_out_but_read_lock_succeeds_if_read_lock_held)
{
boost::shared_mutex rw_mutex;
boost::mutex finish_mutex;
boost::mutex unblocked_mutex;
unsigned unblocked_count=0;
boost::unique_lock<boost::mutex> finish_lock(finish_mutex);
boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count));
boost::this_thread::sleep_for(boost::chrono::seconds(1));
CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u);
boost::chrono::steady_clock::time_point const start=boost::chrono::steady_clock::now();
boost::chrono::steady_clock::time_point const timeout=start+boost::chrono::milliseconds(500);
bool timed_lock_succeeded=rw_mutex.try_lock_until(timeout);
BOOST_CHECK(!timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock();
}
boost::chrono::milliseconds const wait_duration(500);
timed_lock_succeeded=rw_mutex.try_lock_shared_for(wait_duration);
BOOST_CHECK(timed_lock_succeeded);
if(timed_lock_succeeded)
{
rw_mutex.unlock_shared();
}
finish_lock.unlock();
reader.join();
}
#else
#error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
#endif
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