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fiber/test/test_mutex.cpp

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2.8 KiB
C++

// Copyright Oliver Kowalke 2009.
// 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 <cstdlib>
#include <iostream>
#include <map>
#include <stdexcept>
#include <vector>
#include <boost/bind.hpp>
#include <boost/function.hpp>
#include <boost/ref.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/utility.hpp>
#include <boost/fiber/all.hpp>
namespace stm = boost::fibers;
namespace this_stm = boost::this_fiber;
template< typename M >
struct test_lock
{
typedef M mutex_type;
typedef typename M::scoped_lock lock_type;
void operator()()
{
mutex_type mtx;
// Test the lock's constructors.
{
lock_type lk(mtx, boost::defer_lock);
BOOST_CHECK(!lk);
}
lock_type lk(mtx);
BOOST_CHECK(lk ? true : false);
// Test the lock and unlock methods.
lk.unlock();
BOOST_CHECK(!lk);
lk.lock();
BOOST_CHECK(lk ? true : false);
}
};
void do_test_mutex()
{
test_lock< stm::mutex >()();
}
int value1 = 0;
int value2 = 0;
void fn1( stm::mutex & mtx)
{
stm::mutex::scoped_lock lk( mtx);
++value1;
for ( int i = 0; i < 3; ++i)
this_stm::yield();
}
void fn2( stm::mutex & mtx)
{
++value2;
stm::mutex::scoped_lock lk( mtx);
++value2;
}
void test_locking()
{
stm::fiber s( & do_test_mutex);
BOOST_ASSERT( ! s);
BOOST_ASSERT( ! stm::run() );
}
void test_exclusive()
{
value1 = 0;
value2 = 0;
BOOST_CHECK_EQUAL( 0, value1);
BOOST_CHECK_EQUAL( 0, value2);
stm::mutex mtx;
stm::fiber s1(
boost::bind( & fn1, boost::ref( mtx) ) );
stm::fiber s2(
boost::bind( & fn2, boost::ref( mtx) ) );
BOOST_ASSERT( s1);
BOOST_ASSERT( s2);
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 1, value2);
BOOST_CHECK( stm::run() );
BOOST_ASSERT( s1);
BOOST_ASSERT( s2);
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 1, value2);
BOOST_CHECK( stm::run() );
BOOST_ASSERT( s1);
BOOST_ASSERT( s2);
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 1, value2);
BOOST_CHECK( stm::run() );
BOOST_ASSERT( ! s1);
BOOST_ASSERT( s2);
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 1, value2);
BOOST_CHECK( stm::run() );
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 2, value2);
BOOST_CHECK( ! stm::run() );
BOOST_CHECK_EQUAL( 1, value1);
BOOST_CHECK_EQUAL( 2, value2);
}
boost::unit_test::test_suite * init_unit_test_suite( int, char* [])
{
boost::unit_test::test_suite * test =
BOOST_TEST_SUITE("Boost.Stratified: mutex test suite");
test->add( BOOST_TEST_CASE( & test_locking) );
test->add( BOOST_TEST_CASE( & test_exclusive) );
return test;
}