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asio_timer.cpp
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asio_timer.cpp
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/*
* Promise API implemented by cpp as Javascript promise style
*
* Copyright (c) 2016, xhawk18
* at gmail.com
*
* The MIT License (MIT)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "add_ons/asio/timer.hpp"
#include <stdio.h>
#include <boost/asio.hpp>
using namespace promise;
namespace asio = boost::asio;
Promise testTimer(asio::io_service &io) {
return delay(io, 3000).then([&] {
printf("timer after 3000 ms!\n");
return delay(io, 1000);
}).then([&] {
printf("timer after 1000 ms!\n");
return delay(io, 12000);
}).then([] {
printf("timer after 12000 ms!\n");
}).fail([] {
printf("timer cancelled!\n");
});
}
void testPromiseRace(asio::io_service &io) {
auto promise0 = delay(io, 10000).then([] {
printf("race: one resolved\n");
return "one";
});
auto promise1 = delay(io, 5000).then([] {
printf("race: two resolved\n");
return "two";
});
race(promise0, promise1).then([](const char *str) {
printf("race result = %s\n", str);
// Both resolve, but promise1 is faster
});
}
void testPromiseAll(asio::io_service &io) {
auto promise0 = delay(io, 10000).then([] {
printf("all: one resolved\n");
return std::string("one");
});
auto promise1 = delay(io, 5000).then([] {
printf("all: two resolved\n");
return std::string("two");
});
all(promise0, promise1).then([](const std::vector<pm_any> &results) {
printf("all size = %d\n", (int)results.size());
for (size_t i = 0; i < results.size(); ++i) {
printf("all result = %s\n",
results[i].cast<std::string>().c_str());
}
// Both resolve, but promise1 is faster
});
}
int main() {
asio::io_service io;
testPromiseRace(io);
testPromiseAll(io);
Promise timer = testTimer(io);
delay(io, 4500).then([=] {
printf("clearTimeout\n");
clearTimeout(timer);
});
io.run();
return 0;
}