本文整理汇总了C++中boost::promise类的典型用法代码示例。如果您正苦于以下问题：C++ promise类的具体用法？C++ promise怎么用？C++ promise使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了promise类的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: ramhog_gen_pad_mt
static void ramhog_gen_pad_mt(boost::promise<bool> &done,
const uint8_t *input, size_t input_size,
uint32_t C, uint32_t padIndex,
uint64_t *padOut,
bool fForMiner, CBlockIndex *pindexForBest)
{
if (fForMiner && pindexForBest != pindexBest)
{
done.set_value(error("ramhog_gen_pad_mt(): Interrupted from new best block"));
return;
}
ramhog_gen_pad(input, input_size, C, padIndex, padOut);
done.set_value(true);
}示例2: accumulate
void accumulate(boost::promise<int> &p)
{
int sum = 0;
for (int i = 0; i < 5; ++i)
sum += i;
p.set_value(sum);
}示例3: promise_task
void promise_task(boost::promise<std::string> & promise)
{
std::cout << "promise_task" << std::endl;
// sleep (2);
promise.set_value("PROMISE");
}示例4:
channel_consumer()
: consumer_index_(next_consumer_index())
, first_frame_available_(first_frame_promise_.get_future())
, first_frame_reported_(false)
{
is_running_ = true;
current_age_ = 0;
frame_buffer_.set_capacity(3);
}示例5: wait_callback
void wait_callback(boost::promise<int>& pi)
{
boost::lock_guard<boost::mutex> lk(callback_mutex);
++callback_called;
try
{
pi.set_value(42);
}
catch(...)
{
}
}示例6: main
int main()
{
{
//boost::promise<int&> p;
boost::future<int&> f = p.get_future();
//boost::thread(func, boost::move(p)).detach();
boost::thread(func).detach();
int r = f.get();
BOOST_TEST(r == 4);
}
return boost::report_errors();
}示例7: wrap_as_future
virtual boost::unique_future<bool> send(const safe_ptr<read_frame>& frame) override
{
bool pushed = frame_buffer_.try_push(frame);
if (pushed && !first_frame_reported_)
{
first_frame_promise_.set_value();
first_frame_reported_ = true;
}
return caspar::wrap_as_future(is_running_.load());
}示例8: send
virtual void send(const safe_ptr<basic_frame>& src_frame) override
{
bool pushed = frame_buffer_.try_push(src_frame);
// frame_buffer_.push(src_frame);
if (pushed && !first_frame_reported_) //changed to fix compilation
//if (!first_frame_reported_)
{
first_frame_promise_.set_value();
first_frame_reported_ = true;
}
}示例9: WorkItem
WorkItem(const Request& req,
ExtraSendFun* send_extra,
ExtraRecvFun* recv_extra)
: request(req)
, request_tag(allocate_tag())
, request_type(vfsprotocol::RequestTraits<Request>::request_type)
, request_desc(vfsprotocol::request_type_to_string(request_type))
, send_extra_fun(send_extra)
, recv_extra_fun(recv_extra)
// clang++ (3.8.0-2ubuntu3~trusty4) complains otherwise about
// 'promise' being used unitialized when initializing 'future'
, promise()
, future(promise.get_future())
{}示例10: main
int main()
{
{
typedef int T;
//boost::promise<T> p;
boost::future<T> f = p.get_future();
//boost::thread(func, boost::move(p)).detach();
boost::thread(func).detach();
try
{
f.get();
BOOST_TEST(false);
}
catch (boost::wrap<int> i)
{
BOOST_TEST(i.value == 3);
}
catch (...)
{
BOOST_TEST(false);
}
}
{
typedef int T;
boost::promise<T> p2;
boost::future<T> f = p2.get_future();
//boost::thread(func, boost::move(p)).detach();
p = boost::move(p2);
boost::thread(func).detach();
try
{
f.get();
BOOST_TEST(false);
}
catch (boost::wrap<int> i)
{
BOOST_TEST(i.value == 3);
}
catch (...)
{
BOOST_TEST(false);
}
}
return boost::report_errors();
}示例11: func1
void func1(boost::promise<int> p)
{
boost::this_thread::sleep_for(ms(500));
p.set_value(3);
}示例12: main
int main()
{
{
//boost::promise<boost::interprocess::unique_ptr<int, boost::default_delete<int>> > p;
boost::future<boost::interprocess::unique_ptr<int, boost::default_delete<int> > > f = p.get_future();
//boost::thread(func, boost::move(p)).detach();
boost::thread(func).detach();
BOOST_TEST(*f.get() == 5);
}
return boost::report_errors();
}示例13: RunCommand
RunCommand(const mongo::BSONObj& cmd, mongo::BSONObj& ret,
boost::unique_future<bool>& future) : cmd(cmd), ret(ret), future(future)
{
future = promise.get_future();
}示例14: func6
void func6(boost::promise<void> p)
{
boost::this_thread::sleep_for(boost::chrono::milliseconds(500));
p.set_exception(boost::make_exception_ptr('c'));
}示例15: Select
Select(const std::string& container, const mongo::Query& query,
QueryResults& results, boost::unique_future<bool>& future, int limit = 0) :
container(container), query(query), results(results), future(future),
promise(), limit(limit) { future = promise.get_future(); }