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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Copyright (C) 2011 Vicente J. Botet Escriba
//
// 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)
// <boost/thread/condition_variable>
// class condition_variable;
// condition_variable(const condition_variable&) = delete;
#include <boost/thread/condition_variable.hpp>
#include <boost/thread/mutex.hpp>
#include <boost/thread/thread.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <cassert>
#include <iostream>
#include "../../../timming.hpp"
#if defined BOOST_THREAD_USES_CHRONO
typedef boost::chrono::milliseconds milliseconds;
typedef boost::chrono::nanoseconds nanoseconds;
typedef boost::chrono::milliseconds ms;
typedef boost::chrono::nanoseconds ns;
struct Clock
{
typedef boost::chrono::milliseconds duration;
typedef duration::rep rep;
typedef duration::period period;
typedef boost::chrono::time_point<Clock> time_point;
static const bool is_steady = true;
static time_point now()
{
using namespace boost::chrono;
return time_point(duration_cast<duration> (steady_clock::now().time_since_epoch()));
}
};
class Pred
{
int& i_;
public:
explicit Pred(int& i) :
i_(i)
{
}
bool operator()()
{
return i_ != 0;
}
};
boost::condition_variable cv;
boost::mutex mut;
int test1 = 0;
int test2 = 0;
int runs = 0;
const ms max_diff(BOOST_THREAD_TEST_TIME_MS);
void f()
{
try {
boost::unique_lock<boost::mutex> lk(mut);
assert(test2 == 0);
test1 = 1;
cv.notify_one();
Clock::time_point t0 = Clock::now();
Clock::time_point t = t0 + Clock::duration(250);
bool r = cv.wait_until(lk, t, Pred(test2));
Clock::time_point t1 = Clock::now();
if (runs == 0)
{
assert(t1 - t0 < max_diff);
assert(test2 != 0);
assert(r);
}
else
{
const nanoseconds d = t1 - t0 - milliseconds(250);
std::cout << "diff= " << d.count() << std::endl;
std::cout << "max_diff= " << max_diff.count() << std::endl;
assert(d < max_diff);
assert(test2 == 0);
assert(!r);
}
++runs;
} catch(...) {
std::cout << "ERROR exception" << __LINE__ << std::endl;
assert(false);
}
}
int main()
{
try
{
boost::unique_lock<boost::mutex> lk(mut);
boost::thread t(f);
BOOST_TEST(test1 == 0);
while (test1 == 0)
cv.wait(lk);
BOOST_TEST(test1 != 0);
test2 = 1;
lk.unlock();
cv.notify_one();
t.join();
} catch(...) {
BOOST_TEST(false);
std::cout << "ERROR exception" << __LINE__ << std::endl;
}
test1 = 0;
test2 = 0;
try
{
boost::unique_lock<boost::mutex> lk(mut);
boost::thread t(f);
BOOST_TEST(test1 == 0);
while (test1 == 0)
cv.wait(lk);
BOOST_TEST(test1 != 0);
lk.unlock();
t.join();
} catch(...) {
BOOST_TEST(false);
std::cout << "ERROR exception" << __LINE__ << std::endl;
}
return boost::report_errors();
}
#else
#error "Test not applicable: BOOST_THREAD_USES_CHRONO not defined for this platform as not supported"
#endif
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