| // |
| // io_service.cpp |
| // ~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2010 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| // |
| // 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) |
| // |
| |
| // Disable autolinking for unit tests. |
| #if !defined(BOOST_ALL_NO_LIB) |
| #define BOOST_ALL_NO_LIB 1 |
| #endif // !defined(BOOST_ALL_NO_LIB) |
| |
| // Test that header file is self-contained. |
| #include <boost/asio/io_service.hpp> |
| |
| #include <sstream> |
| #include <boost/thread.hpp> |
| #include <boost/bind.hpp> |
| #include <boost/asio/deadline_timer.hpp> |
| #include "unit_test.hpp" |
| |
| using namespace boost::asio; |
| |
| void increment(int* count) |
| { |
| ++(*count); |
| } |
| |
| void decrement_to_zero(io_service* ios, int* count) |
| { |
| if (*count > 0) |
| { |
| --(*count); |
| |
| int before_value = *count; |
| ios->post(boost::bind(decrement_to_zero, ios, count)); |
| |
| // Handler execution cannot nest, so count value should remain unchanged. |
| BOOST_CHECK(*count == before_value); |
| } |
| } |
| |
| void nested_decrement_to_zero(io_service* ios, int* count) |
| { |
| if (*count > 0) |
| { |
| --(*count); |
| |
| ios->dispatch(boost::bind(nested_decrement_to_zero, ios, count)); |
| |
| // Handler execution is nested, so count value should now be zero. |
| BOOST_CHECK(*count == 0); |
| } |
| } |
| |
| void sleep_increment(io_service* ios, int* count) |
| { |
| deadline_timer t(*ios, boost::posix_time::seconds(2)); |
| t.wait(); |
| |
| if (++(*count) < 3) |
| ios->post(boost::bind(sleep_increment, ios, count)); |
| } |
| |
| void start_sleep_increments(io_service* ios, int* count) |
| { |
| // Give all threads a chance to start. |
| deadline_timer t(*ios, boost::posix_time::seconds(2)); |
| t.wait(); |
| |
| // Start the first of three increments. |
| ios->post(boost::bind(sleep_increment, ios, count)); |
| } |
| |
| void throw_exception() |
| { |
| throw 1; |
| } |
| |
| void io_service_run(io_service* ios) |
| { |
| ios->run(); |
| } |
| |
| void io_service_test() |
| { |
| io_service ios; |
| int count = 0; |
| |
| ios.post(boost::bind(increment, &count)); |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 0); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 1); |
| |
| count = 0; |
| ios.reset(); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(boost::bind(increment, &count)); |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 0); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 5); |
| |
| count = 0; |
| ios.reset(); |
| io_service::work* w = new io_service::work(ios); |
| ios.post(boost::bind(&io_service::stop, &ios)); |
| ios.run(); |
| |
| // The only operation executed should have been to stop run(). |
| BOOST_CHECK(count == 0); |
| |
| ios.reset(); |
| ios.post(boost::bind(increment, &count)); |
| delete w; |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 0); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 1); |
| |
| count = 10; |
| ios.reset(); |
| ios.post(boost::bind(decrement_to_zero, &ios, &count)); |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 10); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 0); |
| |
| count = 10; |
| ios.reset(); |
| ios.post(boost::bind(nested_decrement_to_zero, &ios, &count)); |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 10); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 0); |
| |
| count = 10; |
| ios.reset(); |
| ios.dispatch(boost::bind(nested_decrement_to_zero, &ios, &count)); |
| |
| // No handlers can be called until run() is called, even though nested |
| // delivery was specifically allowed in the previous call. |
| BOOST_CHECK(count == 10); |
| |
| ios.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 0); |
| |
| count = 0; |
| int count2 = 0; |
| ios.reset(); |
| ios.post(boost::bind(start_sleep_increments, &ios, &count)); |
| ios.post(boost::bind(start_sleep_increments, &ios, &count2)); |
| boost::thread thread1(boost::bind(io_service_run, &ios)); |
| boost::thread thread2(boost::bind(io_service_run, &ios)); |
| thread1.join(); |
| thread2.join(); |
| |
| // The run() calls will not return until all work has finished. |
| BOOST_CHECK(count == 3); |
| BOOST_CHECK(count2 == 3); |
| |
| count = 10; |
| io_service ios2; |
| ios.dispatch(ios2.wrap(boost::bind(decrement_to_zero, &ios2, &count))); |
| ios.reset(); |
| ios.run(); |
| |
| // No decrement_to_zero handlers can be called until run() is called on the |
| // second io_service object. |
| BOOST_CHECK(count == 10); |
| |
| ios2.run(); |
| |
| // The run() call will not return until all work has finished. |
| BOOST_CHECK(count == 0); |
| |
| count = 0; |
| int exception_count = 0; |
| ios.reset(); |
| ios.post(throw_exception); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(boost::bind(increment, &count)); |
| ios.post(throw_exception); |
| ios.post(boost::bind(increment, &count)); |
| |
| // No handlers can be called until run() is called. |
| BOOST_CHECK(count == 0); |
| BOOST_CHECK(exception_count == 0); |
| |
| for (;;) |
| { |
| try |
| { |
| ios.run(); |
| break; |
| } |
| catch (int) |
| { |
| ++exception_count; |
| } |
| } |
| |
| // The run() calls will not return until all work has finished. |
| BOOST_CHECK(count == 3); |
| BOOST_CHECK(exception_count == 2); |
| } |
| |
| class test_service : public boost::asio::io_service::service |
| { |
| public: |
| static boost::asio::io_service::id id; |
| test_service(boost::asio::io_service& s) |
| : boost::asio::io_service::service(s) {} |
| private: |
| virtual void shutdown_service() {} |
| }; |
| |
| boost::asio::io_service::id test_service::id; |
| |
| void io_service_service_test() |
| { |
| boost::asio::io_service ios1; |
| boost::asio::io_service ios2; |
| boost::asio::io_service ios3; |
| |
| // Implicit service registration. |
| |
| boost::asio::use_service<test_service>(ios1); |
| |
| BOOST_CHECK(boost::asio::has_service<test_service>(ios1)); |
| |
| test_service* svc1 = new test_service(ios1); |
| try |
| { |
| boost::asio::add_service(ios1, svc1); |
| BOOST_ERROR("add_service did not throw"); |
| } |
| catch (boost::asio::service_already_exists&) |
| { |
| } |
| delete svc1; |
| |
| // Explicit service registration. |
| |
| test_service* svc2 = new test_service(ios2); |
| boost::asio::add_service(ios2, svc2); |
| |
| BOOST_CHECK(boost::asio::has_service<test_service>(ios2)); |
| BOOST_CHECK(&boost::asio::use_service<test_service>(ios2) == svc2); |
| |
| test_service* svc3 = new test_service(ios2); |
| try |
| { |
| boost::asio::add_service(ios2, svc3); |
| BOOST_ERROR("add_service did not throw"); |
| } |
| catch (boost::asio::service_already_exists&) |
| { |
| } |
| delete svc3; |
| |
| // Explicit registration with invalid owner. |
| |
| test_service* svc4 = new test_service(ios2); |
| try |
| { |
| boost::asio::add_service(ios3, svc4); |
| BOOST_ERROR("add_service did not throw"); |
| } |
| catch (boost::asio::invalid_service_owner&) |
| { |
| } |
| delete svc4; |
| |
| BOOST_CHECK(!boost::asio::has_service<test_service>(ios3)); |
| } |
| |
| test_suite* init_unit_test_suite(int, char*[]) |
| { |
| test_suite* test = BOOST_TEST_SUITE("io_service"); |
| test->add(BOOST_TEST_CASE(&io_service_test)); |
| test->add(BOOST_TEST_CASE(&io_service_service_test)); |
| return test; |
| } |