Hello,
I tried using the boost deadline_timer in this simple test application, but
had some trouble. The goal is for the timer to trigger every 45 milliseconds
using the "expires_at()" member function of the deadline_timer. (I need an
absolute time, so I'm not considering expires_from_now(). I am also not
concerned about drift at the moment). When I run the program, wait() does
not wait for 45 ms! Yet, no errors are reported. Am I using the library
incorrectly somehow?
-- Dylan
Sample program:
#include
#include
#include
#include
#include <iostream>
using namespace std;
int main()
{
boost::asio::io_service Service;
boost::shared_ptrboost::thread Thread;
boost::asio::io_service::work RunForever(Service);
Thread = boost::shared_ptrboost::thread(new
boost::thread(boost::bind(&boost::asio::io_service::run, &Service)));
boost::shared_ptrboost::asio::deadline_timer Timer(new
boost::asio::deadline_timer(Service));
while(1)
{
boost::posix_time::time_duration Duration;
Duration = boost::posix_time::microseconds(45000);
boost::posix_time::ptime Start =
boost::posix_time::microsec_clock::local_time();
boost::posix_time::ptime Deadline = Start + Duration;
boost::system::error_code Error;
size_t Result = Timer->expires_at(Deadline, Error);
cout << Result << ' ' << Error << ' ';
Timer->wait(Error);
cout << Error << ' ';
boost::posix_time::ptime End =
boost::posix_time::microsec_clock::local_time();
(cout << "Duration = " << (End - Start).total_milliseconds()
<< " milliseconds" << endl).flush();
}
return 0;
}
