On 02/26/2010 12:16 PM, Dmitry Goncharov wrote:
This proposal suggests adding monotonic_time() static member function to the boost::date_time::microsec_clock and second_clock classes.
usage example:
#include <unistd.h> // for sleep() #include <iostream> #include <boost/date_time/posix_time/posix_time.hpp> #include "monotonic_time.hpp"
int main() { namespace pt = boost::posix_time;
typedef ext::microsec_clock<pt::ptime> usclock_t; // namespace ext instead of boost::date_time pt::ptime now = usclock_t::monotonic_time(); sleep(1); pt::ptime later = usclock_t::monotonic_time(); std::cout << later - now << std::endl; }
Prototype implementation can be found in the attachment. If there is interest i am willing to finish the implementation and documentation.
I think there is something similar in Boost.Chrono in the sandbox. I think it would be a useful addition to Boost, whether as a part of Boost.DateTime or Boost.Chrono. Just make sure that it doesn't break microsec_clock if a monotonic timer is not available.