本文整理汇总了C++中Future::wait方法的典型用法代码示例。如果您正苦于以下问题：C++ Future::wait方法的具体用法？C++ Future::wait怎么用？C++ Future::wait使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Future的用法示例。
在下文中一共展示了Future::wait方法的4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:
TEST(Parallel_Test, Future_Test) {
reset_counters();
TestCls* values = new TestCls[DEFAULT_PARALLEL_THREAD_COUNT];
for (unsigned x = 0; x < DEFAULT_PARALLEL_THREAD_COUNT; ++x)
values[x] = x;
Future future;
parallel.process(values, &TestCls::operator*=, DEFAULT_PARALLEL_THREAD_COUNT, 0, &future, 2);
ASSERT_EQ(DEFAULT_PARALLEL_THREAD_COUNT, future.worker_count);
future.wait();
ASSERT_EQ(future.finished_count, future.worker_count);
delete[] values;
}示例2: collectAll
TEST(Wait, waitWithDuration) {
{
Promise<int> p;
Future<int> f = p.getFuture();
f.wait(milliseconds(1));
EXPECT_FALSE(f.isReady());
p.setValue(1);
EXPECT_TRUE(f.isReady());
}
{
Promise<int> p;
Future<int> f = p.getFuture();
p.setValue(1);
f.wait(milliseconds(1));
EXPECT_TRUE(f.isReady());
}
{
vector<Future<bool>> v_fb;
v_fb.push_back(makeFuture(true));
v_fb.push_back(makeFuture(false));
auto f = collectAll(v_fb);
f.wait(milliseconds(1));
EXPECT_TRUE(f.isReady());
EXPECT_EQ(2, f.value().size());
}
{
vector<Future<bool>> v_fb;
Promise<bool> p1;
Promise<bool> p2;
v_fb.push_back(p1.getFuture());
v_fb.push_back(p2.getFuture());
auto f = collectAll(v_fb);
f.wait(milliseconds(1));
EXPECT_FALSE(f.isReady());
p1.setValue(true);
EXPECT_FALSE(f.isReady());
p2.setValue(true);
EXPECT_TRUE(f.isReady());
}
{
auto f = makeFuture().wait(milliseconds(1));
EXPECT_TRUE(f.isReady());
}
{
Promise<Unit> p;
auto start = std::chrono::steady_clock::now();
auto f = p.getFuture().wait(milliseconds(100));
auto elapsed = std::chrono::steady_clock::now() - start;
EXPECT_GE(elapsed, milliseconds(100));
EXPECT_FALSE(f.isReady());
p.setValue();
EXPECT_TRUE(f.isReady());
}
{
// Try to trigger the race where the resultant Future is not yet complete
// even if we didn't hit the timeout, and make sure we deal with it properly
Promise<Unit> p;
folly::Baton<> b;
auto t = std::thread([&]{
b.post();
/* sleep override */ std::this_thread::sleep_for(milliseconds(100));
p.setValue();
});
b.wait();
auto f = p.getFuture().wait(std::chrono::seconds(3600));
EXPECT_TRUE(f.isReady());
t.join();
}
}示例3: wait
static void wait(Future& f, int n) {
f.wait(n);
}示例4: rundemos
// The primary thread function, which issues calls through the secondary thread
void rundemos()
{
// Create an event for which our second thread will wait
hExternalEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
// Create the secondary thread
DWORD dwThreadId;
HANDLE hThread = CreateThread(NULL, 0, demoThread, NULL, 0, &dwThreadId);
// Obtain a scheduler instance, through which we can make cross thread calls
CallScheduler<APCPickupPolicy>* scheduler = CallScheduler<APCPickupPolicy>::getInstance();
// Do a first cross thread call, to a function returning a string
try
{
string dataString = scheduler->syncCall<string, ExceptionTypes<std::exception>>(dwThreadId, boost::bind(demoFunction, 'a'), INFINITE);
cout << "demoFunction returned: " << dataString << endl;
}
catch(CallTimeoutException&)
{
cout << "Call timeout." << endl;
}
catch(CallSchedulingFailedException&)
{
cout << "Call scheduling failed -- Probably a broken pickup policy." << endl;
}
catch(std::exception& e)
{
cout << "The scheduled call threw a std exception: " << e.what() << endl;
}
// Do a second cross thread call, to a function returning nothing
try
{
// Expect a std::exception or DemoException
scheduler->syncCall<void, ExceptionTypes<std::exception, DemoException>>(dwThreadId, boost::bind(demoVoidFunction, 'a'), 500);
}
catch(CallTimeoutException&)
{
cout << "Call timeout" << endl;
}
catch(CallSchedulingFailedException&)
{
cout << "Call scheduling failed -- Probably a broken pickup policy." << endl;
}
catch(std::exception& e)
{
cout << "demoVoidFunction threw a std exception: " << e.what() << endl;
}
catch(DemoException&)
{
cout << "demoVoidFunction threw a DemoException" << endl;
}
// Do a third cross thread call, to a function returning an int
try
{
// Expect a std::exception or DemoException
int demoInt = scheduler->syncCall<int, ExceptionTypes<std::exception, DemoException>>(dwThreadId, boost::bind(demoIntFunction, '!'), 500);
cout << "demoIntFunction returned: " << demoInt << endl;
}
catch(CallTimeoutException&)
{
cout << "Call timeout" << endl;
}
catch(CallSchedulingFailedException&)
{
cout << "Call scheduling failed -- Probably a broken pickup policy." << endl;
}
catch(std::exception& e)
{
cout << "demoIntFunction threw a std exception: " << e.what() << endl;
}
catch(DemoException&)
{
cout << "demoIntFunction threw a DemoException" << endl;
}
// Do a fourth cross thread call, to a function returning an int
try
{
boost::function<int()> f = boost::bind(demoIntFunctionDelayed, '!');
Future<int> futureDemoInt = scheduler->asyncCall<ExceptionTypes<DemoException, std::exception>>(dwThreadId, f);
//Future<int> futureDemoInt2 = scheduler->asyncCall<ExceptionTypes<DemoException, std::exception>>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
Future<void> futureDemoInt3 = scheduler->asyncCall<void>(dwThreadId, boost::bind(demoIntFunctionDelayed, '?'));
Future<int> futureDemoInt4 = scheduler->asyncCall<int>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
Future<int> futureDemoInt5 = scheduler->asyncCall<int, ExceptionTypes<DemoException>>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
Future<void> futureDemoInt6 = scheduler->asyncCall<void, ExceptionTypes<DemoException>>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
Future<void> futureDemoInt7 = scheduler->asyncCall<ExceptionTypes<DemoException>, void>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
Future<int> futureDemoInt8 = scheduler->asyncCall<ExceptionTypes<DemoException>, int>(dwThreadId, boost::bind(demoIntFunctionDelayed, '!'));
while(futureDemoInt.wait(10) == ASYNCH_CALL_PENDING)
{
cout << "Still waiting ..." << endl;
}
cout << "demoIntFunctionDelayed returned: " << futureDemoInt.getValue() << endl;
}
catch(CallSchedulingFailedException&)
//.........这里部分代码省略.........