564628014c
We create threads using std::thread in various places in the test suite. However, the usual std::thread constructor may not work on all platforms, e.g. on platforms where passing a stack size is required to create a thread. This commit introduces a simple indirection that makes it easier to tweak how threads are created inside the test suite on various platforms. Note that tests that are purposefully calling std::thread's constructor directly (e.g. because that is what they're testing) were not modified.
105 lines
1.9 KiB
C++
105 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// UNSUPPORTED: libcpp-has-no-threads
|
|
|
|
// ALLOW_RETRIES: 2
|
|
|
|
// <condition_variable>
|
|
|
|
// class condition_variable_any;
|
|
|
|
// void notify_one();
|
|
|
|
#include <condition_variable>
|
|
#include <mutex>
|
|
#include <thread>
|
|
#include <cassert>
|
|
|
|
#include "make_test_thread.h"
|
|
#include "test_macros.h"
|
|
|
|
std::condition_variable_any cv;
|
|
|
|
typedef std::timed_mutex L0;
|
|
typedef std::unique_lock<L0> L1;
|
|
|
|
L0 m0;
|
|
|
|
int test0 = 0;
|
|
int test1 = 0;
|
|
int test2 = 0;
|
|
|
|
void f1()
|
|
{
|
|
L1 lk(m0);
|
|
assert(test1 == 0);
|
|
while (test1 == 0)
|
|
cv.wait(lk);
|
|
assert(test1 == 1);
|
|
test1 = 2;
|
|
}
|
|
|
|
void f2()
|
|
{
|
|
L1 lk(m0);
|
|
assert(test2 == 0);
|
|
while (test2 == 0)
|
|
cv.wait(lk);
|
|
assert(test2 == 1);
|
|
test2 = 2;
|
|
}
|
|
|
|
int main(int, char**)
|
|
{
|
|
std::thread t1 = support::make_test_thread(f1);
|
|
std::thread t2 = support::make_test_thread(f2);
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
{
|
|
L1 lk(m0);
|
|
test1 = 1;
|
|
test2 = 1;
|
|
}
|
|
cv.notify_one();
|
|
{
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
L1 lk(m0);
|
|
}
|
|
if (test1 == 2)
|
|
{
|
|
t1.join();
|
|
test1 = 0;
|
|
}
|
|
else if (test2 == 2)
|
|
{
|
|
t2.join();
|
|
test2 = 0;
|
|
}
|
|
else
|
|
assert(false);
|
|
cv.notify_one();
|
|
{
|
|
std::this_thread::sleep_for(std::chrono::milliseconds(100));
|
|
L1 lk(m0);
|
|
}
|
|
if (test1 == 2)
|
|
{
|
|
t1.join();
|
|
test1 = 0;
|
|
}
|
|
else if (test2 == 2)
|
|
{
|
|
t2.join();
|
|
test2 = 0;
|
|
}
|
|
else
|
|
assert(false);
|
|
|
|
return 0;
|
|
}
|