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- [/
- (C) Copyright 2007-8 Anthony Williams.
- Distributed under the Boost Software License, Version 1.0.
- (See accompanying file LICENSE_1_0.txt or copy at
- http://www.boost.org/LICENSE_1_0.txt).
- ]
- [section:time Time Requirements]
- As of Boost 1.50.0, the __boost_thread__ library uses Boost.Chrono library for all operations that require a
- time out as defined in the standard c++11. These include (but are not limited to):
- * `boost::this_thread::__sleep_for`
- * `boost::this_thread::__sleep_until`
- * `boost::__thread::__try_join_for`
- * `boost::__thread::__try_join_until`
- * `boost::__condition_variable::__wait_for`
- * `boost::__condition_variable::__wait_until`
- * `boost::__condition_variable_any::__cvany_wait_for`
- * `boost::__condition_variable_any::__cvany_wait_until`
- * `__TimedLockable::__try_lock_for`
- * `__TimedLockable::__try_lock_until`
- [section:deprecated Deprecated]
- The time related functions introduced in Boost 1.35.0, using the [link date_time Boost.Date_Time] library are deprecated. These include (but are not limited to):
- * __sleep__
- * __timed_join__
- * __cond_timed_wait__
- * __timed_lock_ref__
- For the overloads that accept an absolute time parameter, an object of type [link thread.time.deprecated.system_time `boost::system_time`] is
- required. Typically, this will be obtained by adding a duration to the current time, obtained with a call to [link
- thread.time.deprecated.get_system_time `boost::get_system_time()`]. e.g.
- boost::system_time const timeout=boost::get_system_time() + boost::posix_time::milliseconds(500);
- extern bool done;
- extern boost::mutex m;
- extern boost::condition_variable cond;
- boost::unique_lock<boost::mutex> lk(m);
- while(!done)
- {
- if(!cond.timed_wait(lk,timeout))
- {
- throw "timed out";
- }
- }
- For the overloads that accept a ['TimeDuration] parameter, an object of any type that meets the [link
- date_time.posix_time.time_duration Boost.Date_Time Time Duration requirements] can be used, e.g.
- boost::this_thread::sleep(boost::posix_time::milliseconds(25));
-
- boost::mutex m;
- if(m.timed_lock(boost::posix_time::nanoseconds(100)))
- {
- // ...
- }
- [section:system_time Typedef `system_time`]
- #include <boost/thread/thread_time.hpp>
- typedef boost::posix_time::ptime system_time;
- See the documentation for [link date_time.posix_time.ptime_class `boost::posix_time::ptime`] in the Boost.Date_Time library.
- [endsect]
- [section:get_system_time Non-member function `get_system_time()`]
- #include <boost/thread/thread_time.hpp>
- system_time get_system_time();
- [variablelist
- [[Returns:] [The current time.]]
- [[Throws:] [Nothing.]]
- ]
- [endsect]
- [endsect]
- [endsect]
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