void task_thread()
{
std::packaged_task<int(int,int)> task(::pow);
std::future<int> fut = task.get_future();
std::thread task_t(std::move(task), 2, 11);
task_t.join();
std::cout << "task_thread:\t" << fut.get() << '\n';
}
void task_lambda()
{
std::packaged_task<int(int,int)> task([] (int a, int b) {
std::this_thread::sleep_for(std::chrono::seconds(3));
return ::pow(a, b);
});
std::future<int> fut = task.get_future();
std::thread task_t(std::move(task), 2, 9);
std::cout << "task_lambda:\t" << fut.get() << '\n';
task_t.join();
}
test_cancel() : sum(0)
{
completion_port port;
task_scheduler scheduler(port, std::bind(&test_cancel::init, this), [] () { std::cout << "sayonara" << std::endl; } );
for (std::size_t i = 1; i < 10; ++i) {
const task_t id = scheduler.async(
std::bind(&test_cancel::f, this, i, placeholders::error),
std::bind(&test_cancel::c, this, i, placeholders::error));
assert(task_t(i) == id);
}
for (std::size_t i = 2; i < 10; i+=2) {
if (i%2 == 0) {
scheduler.cancel(task_t(i));
}
}
cv_.notify_all();
port.run();
assert(sum == 0);
}
