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/**
* Reads stdin looking for a string, and coalesces that buffer until stdin
* is calm for the passed in number of seconds.
*/
#include <array>
#include <chrono>
#include <cstdio>
#include <sdeventplus/clock.hpp>
#include <sdeventplus/event.hpp>
#include <sdeventplus/source/io.hpp>
#include <sdeventplus/utility/timer.hpp>
#include <string>
#include <unistd.h>
#include <utility>
using sdeventplus::Clock;
using sdeventplus::ClockId;
using sdeventplus::Event;
using sdeventplus::source::IO;
constexpr auto clockId = ClockId::RealTime;
using Timer = sdeventplus::utility::Timer<clockId>;
int main(int argc, char* argv[])
{
if (argc != 2)
{
fprintf(stderr, "Usage: %s [seconds]\n", argv[0]);
return 1;
}
std::chrono::seconds delay(std::stoul(argv[1]));
auto event = Event::get_default();
std::string content;
auto timerCb = [&](Timer&) {
printf("%s", content.c_str());
content.clear();
};
Timer timer(event, std::move(timerCb));
auto ioCb = [&](IO&, int fd, uint32_t) {
std::array<char, 4096> buffer;
ssize_t bytes = read(fd, buffer.data(), buffer.size());
if (bytes <= 0)
{
printf("%s", content.c_str());
event.exit(bytes < 0);
return;
}
content.append(buffer.data(), bytes);
timer.restartOnce(delay);
};
IO ioSource(event, STDIN_FILENO, EPOLLIN, std::move(ioCb));
return event.loop();
}
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