[Boost-users] [data_time] Are posix_time functions reentrant ?

Hi there, here is a question I didn't find answers on in the documentation: Are the posix_time functions reentrant ? In particular: In my library a number of threads instantiate objects that internally measure the elapsed time like this: // Measure the start time ptime startTime = boost::posix_time::microsec_clock::local_time(); // [...] // Has a time-out been set and if so, have we exceeded it ? if(firstTimeOut_.total_microseconds() && ((microsec_clock::local_time()-startTime) > firstTimeOut_)) { // do something } Best Regards, Ruediger