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// Copyright Oliver Kowalke 2013.
// 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)
//
// This test is based on the tests of Boost.Thread
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <map>
#include <mutex>
#include <stdexcept>
#include <vector>
#include <boost/atomic.hpp>
#include <boost/bind.hpp>
#include <boost/chrono.hpp>
#include <boost/cstdint.hpp>
#include <boost/function.hpp>
#include <boost/ref.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/thread.hpp>
#include <boost/utility.hpp>
#include <boost/fiber/all.hpp>
typedef boost::chrono::milliseconds ms;
boost::atomic< int > value1;
void wait_fn( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
b.wait();
std::unique_lock< boost::fibers::mutex > lk( mtx);
cond.wait( lk, [&flag](){ return flag; });
++value1;
}
void notify_one_fn( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
b.wait();
std::unique_lock< boost::fibers::mutex > lk( mtx);
flag = true;
lk.unlock();
cond.notify_one();
}
void notify_all_fn( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
b.wait();
std::unique_lock< boost::fibers::mutex > lk( mtx);
flag = true;
lk.unlock();
cond.notify_all();
}
void fn1( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
boost::fibers::fiber(
boost::fibers::launch::post,
wait_fn,
std::ref( b),
std::ref( mtx),
std::ref( cond),
std::ref( flag) ).join();
}
void fn2( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
boost::fibers::fiber(
boost::fibers::launch::post,
notify_one_fn,
std::ref( b),
std::ref( mtx),
std::ref( cond),
std::ref( flag) ).join();
}
void fn3( boost::barrier & b,
boost::fibers::mutex & mtx,
boost::fibers::condition_variable & cond,
bool & flag) {
boost::fibers::fiber(
boost::fibers::launch::post,
notify_all_fn,
std::ref( b),
std::ref( mtx),
std::ref( cond),
std::ref( flag) ).join();
}
void test_one_waiter_notify_one() {
for ( int i = 0; i < 10; ++i) {
boost::barrier b( 2);
bool flag = false;
value1 = 0;
boost::fibers::mutex mtx;
boost::fibers::condition_variable cond;
BOOST_CHECK( 0 == value1);
boost::thread t1(std::bind( fn1, std::ref( b), std::ref( mtx), std::ref( cond), std::ref( flag) ) );
boost::thread t2(std::bind( fn2, std::ref( b), std::ref( mtx), std::ref( cond), std::ref( flag) ) );
t1.join();
t2.join();
BOOST_CHECK( 1 == value1);
}
}
void test_two_waiter_notify_all() {
for ( int i = 0; i < 10; ++i) {
boost::barrier b( 3);
bool flag = false;
value1 = 0;
boost::fibers::mutex mtx;
boost::fibers::condition_variable cond;
BOOST_CHECK( 0 == value1);
boost::thread t1(std::bind( fn1, std::ref( b), std::ref( mtx), std::ref( cond), std::ref( flag) ) );
boost::thread t2(std::bind( fn1, std::ref( b), std::ref( mtx), std::ref( cond), std::ref( flag) ) );
boost::thread t3(std::bind( fn3, std::ref( b), std::ref( mtx), std::ref( cond), std::ref( flag) ) );
t1.join();
t2.join();
t3.join();
BOOST_CHECK( 2 == value1);
}
}
void test_dummy() {
}
boost::unit_test::test_suite * init_unit_test_suite( int, char* [])
{
boost::unit_test::test_suite * test =
BOOST_TEST_SUITE("Boost.Fiber: multithreaded condition_variable test suite");
#if ! defined(BOOST_FIBERS_NO_ATOMICS)
test->add( BOOST_TEST_CASE( & test_one_waiter_notify_one) );
test->add( BOOST_TEST_CASE( & test_two_waiter_notify_all) );
#else
test->add( BOOST_TEST_CASE( & test_dummy) );
#endif
return test;
}
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