| // (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) |
| |
| #include <boost/test/unit_test.hpp> |
| #include <boost/thread/thread.hpp> |
| #include <boost/thread/xtime.hpp> |
| #include "util.inl" |
| #include "shared_mutex_locking_thread.hpp" |
| |
| #define CHECK_LOCKED_VALUE_EQUAL(mutex_name,value,expected_value) \ |
| { \ |
| boost::mutex::scoped_lock lock(mutex_name); \ |
| BOOST_CHECK_EQUAL(value,expected_value); \ |
| } |
| |
| |
| void 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::mutex::scoped_lock finish_lock(finish_mutex); |
| boost::thread writer(simple_writing_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count)); |
| boost::thread::sleep(delay(1)); |
| CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u); |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock_shared(timeout); |
| BOOST_CHECK((timeout-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock_shared(wait_duration); |
| BOOST_CHECK((timeout2-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| finish_lock.unlock(); |
| writer.join(); |
| } |
| |
| void test_timed_lock_shared_succeeds_if_no_lock_held() |
| { |
| boost::shared_mutex rw_mutex; |
| boost::mutex finish_mutex; |
| boost::mutex unblocked_mutex; |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock_shared(timeout); |
| BOOST_CHECK(boost::get_system_time()<timeout); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock_shared(wait_duration); |
| BOOST_CHECK(boost::get_system_time()<timeout2); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| } |
| |
| void 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::mutex::scoped_lock finish_lock(finish_mutex); |
| boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count)); |
| boost::thread::sleep(delay(1)); |
| CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u); |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock_shared(timeout); |
| BOOST_CHECK(boost::get_system_time()<timeout); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock_shared(wait_duration); |
| BOOST_CHECK(boost::get_system_time()<timeout2); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| finish_lock.unlock(); |
| reader.join(); |
| } |
| |
| void 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::mutex::scoped_lock finish_lock(finish_mutex); |
| boost::thread writer(simple_writing_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count)); |
| boost::thread::sleep(delay(1)); |
| CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u); |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock(timeout); |
| BOOST_CHECK((timeout-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock(wait_duration); |
| BOOST_CHECK((timeout2-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| finish_lock.unlock(); |
| writer.join(); |
| } |
| |
| void test_timed_lock_succeeds_if_no_lock_held() |
| { |
| boost::shared_mutex rw_mutex; |
| boost::mutex finish_mutex; |
| boost::mutex unblocked_mutex; |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock(timeout); |
| BOOST_CHECK(boost::get_system_time()<timeout); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock(wait_duration); |
| BOOST_CHECK(boost::get_system_time()<timeout2); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| } |
| |
| void 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::mutex::scoped_lock finish_lock(finish_mutex); |
| boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count)); |
| boost::thread::sleep(delay(1)); |
| CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u); |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| boost::posix_time::milliseconds const timeout_resolution(50); |
| bool timed_lock_succeeded=rw_mutex.timed_lock(timeout); |
| BOOST_CHECK((timeout-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| boost::system_time const timeout2=boost::get_system_time()+wait_duration; |
| timed_lock_succeeded=rw_mutex.timed_lock(wait_duration); |
| BOOST_CHECK((timeout2-timeout_resolution)<boost::get_system_time()); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| finish_lock.unlock(); |
| reader.join(); |
| } |
| |
| void 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::mutex::scoped_lock finish_lock(finish_mutex); |
| boost::thread reader(simple_reading_thread(rw_mutex,finish_mutex,unblocked_mutex,unblocked_count)); |
| boost::this_thread::sleep(boost::posix_time::seconds(1)); |
| CHECK_LOCKED_VALUE_EQUAL(unblocked_mutex,unblocked_count,1u); |
| |
| boost::system_time const start=boost::get_system_time(); |
| boost::system_time const timeout=start+boost::posix_time::milliseconds(500); |
| bool timed_lock_succeeded=rw_mutex.timed_lock(timeout); |
| BOOST_CHECK(!timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock(); |
| } |
| |
| boost::posix_time::milliseconds const wait_duration(500); |
| timed_lock_succeeded=rw_mutex.timed_lock_shared(wait_duration); |
| BOOST_CHECK(timed_lock_succeeded); |
| if(timed_lock_succeeded) |
| { |
| rw_mutex.unlock_shared(); |
| } |
| |
| finish_lock.unlock(); |
| reader.join(); |
| } |
| |
| |
| boost::unit_test_framework::test_suite* init_unit_test_suite(int, char*[]) |
| { |
| boost::unit_test_framework::test_suite* test = |
| BOOST_TEST_SUITE("Boost.Threads: shared_mutex test suite"); |
| |
| test->add(BOOST_TEST_CASE(&test_timed_lock_shared_times_out_if_write_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_shared_succeeds_if_no_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_shared_succeeds_if_read_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_times_out_if_write_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_times_out_if_read_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_succeeds_if_no_lock_held)); |
| test->add(BOOST_TEST_CASE(&test_timed_lock_times_out_but_read_lock_succeeds_if_read_lock_held)); |
| |
| return test; |
| } |