summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorRemko Tronçon <git@el-tramo.be>2009-06-01 08:48:42 (GMT)
committerRemko Tronçon <git@el-tramo.be>2009-06-01 09:24:28 (GMT)
commit2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch)
treed46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/asio/basic_deadline_timer.hpp
downloadswift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip
swift-contrib-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2
Import.
Diffstat (limited to '3rdParty/Boost/boost/asio/basic_deadline_timer.hpp')
-rw-r--r--3rdParty/Boost/boost/asio/basic_deadline_timer.hpp383
1 files changed, 383 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/asio/basic_deadline_timer.hpp b/3rdParty/Boost/boost/asio/basic_deadline_timer.hpp
new file mode 100644
index 0000000..65256b8
--- /dev/null
+++ b/3rdParty/Boost/boost/asio/basic_deadline_timer.hpp
@@ -0,0 +1,383 @@
+//
+// basic_deadline_timer.hpp
+// ~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2008 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+//
+// 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)
+//
+
+#ifndef BOOST_ASIO_BASIC_DEADLINE_TIMER_HPP
+#define BOOST_ASIO_BASIC_DEADLINE_TIMER_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include <boost/asio/detail/push_options.hpp>
+
+#include <boost/asio/detail/push_options.hpp>
+#include <cstddef>
+#include <boost/config.hpp>
+#include <boost/asio/detail/pop_options.hpp>
+
+#include <boost/asio/basic_io_object.hpp>
+#include <boost/asio/deadline_timer_service.hpp>
+#include <boost/asio/error.hpp>
+#include <boost/asio/detail/throw_error.hpp>
+
+namespace boost {
+namespace asio {
+
+/// Provides waitable timer functionality.
+/**
+ * The basic_deadline_timer class template provides the ability to perform a
+ * blocking or asynchronous wait for a timer to expire.
+ *
+ * Most applications will use the boost::asio::deadline_timer typedef.
+ *
+ * @par Thread Safety
+ * @e Distinct @e objects: Safe.@n
+ * @e Shared @e objects: Unsafe.
+ *
+ * @par Examples
+ * Performing a blocking wait:
+ * @code
+ * // Construct a timer without setting an expiry time.
+ * boost::asio::deadline_timer timer(io_service);
+ *
+ * // Set an expiry time relative to now.
+ * timer.expires_from_now(boost::posix_time::seconds(5));
+ *
+ * // Wait for the timer to expire.
+ * timer.wait();
+ * @endcode
+ *
+ * @par
+ * Performing an asynchronous wait:
+ * @code
+ * void handler(const boost::system::error_code& error)
+ * {
+ * if (!error)
+ * {
+ * // Timer expired.
+ * }
+ * }
+ *
+ * ...
+ *
+ * // Construct a timer with an absolute expiry time.
+ * boost::asio::deadline_timer timer(io_service,
+ * boost::posix_time::time_from_string("2005-12-07 23:59:59.000"));
+ *
+ * // Start an asynchronous wait.
+ * timer.async_wait(handler);
+ * @endcode
+ *
+ * @par Changing an active deadline_timer's expiry time
+ *
+ * Changing the expiry time of a timer while there are pending asynchronous
+ * waits causes those wait operations to be cancelled. To ensure that the action
+ * associated with the timer is performed only once, use something like this:
+ * used:
+ *
+ * @code
+ * void on_some_event()
+ * {
+ * if (my_timer.expires_from_now(seconds(5)) > 0)
+ * {
+ * // We managed to cancel the timer. Start new asynchronous wait.
+ * my_timer.async_wait(on_timeout);
+ * }
+ * else
+ * {
+ * // Too late, timer has already expired!
+ * }
+ * }
+ *
+ * void on_timeout(const boost::system::error_code& e)
+ * {
+ * if (e != boost::asio::error::operation_aborted)
+ * {
+ * // Timer was not cancelled, take necessary action.
+ * }
+ * }
+ * @endcode
+ *
+ * @li The boost::asio::basic_deadline_timer::expires_from_now() function
+ * cancels any pending asynchronous waits, and returns the number of
+ * asynchronous waits that were cancelled. If it returns 0 then you were too
+ * late and the wait handler has already been executed, or will soon be
+ * executed. If it returns 1 then the wait handler was successfully cancelled.
+ *
+ * @li If a wait handler is cancelled, the boost::system::error_code passed to
+ * it contains the value boost::asio::error::operation_aborted.
+ */
+template <typename Time,
+ typename TimeTraits = boost::asio::time_traits<Time>,
+ typename TimerService = deadline_timer_service<Time, TimeTraits> >
+class basic_deadline_timer
+ : public basic_io_object<TimerService>
+{
+public:
+ /// The time traits type.
+ typedef TimeTraits traits_type;
+
+ /// The time type.
+ typedef typename traits_type::time_type time_type;
+
+ /// The duration type.
+ typedef typename traits_type::duration_type duration_type;
+
+ /// Constructor.
+ /**
+ * This constructor creates a timer without setting an expiry time. The
+ * expires_at() or expires_from_now() functions must be called to set an
+ * expiry time before the timer can be waited on.
+ *
+ * @param io_service The io_service object that the timer will use to dispatch
+ * handlers for any asynchronous operations performed on the timer.
+ */
+ explicit basic_deadline_timer(boost::asio::io_service& io_service)
+ : basic_io_object<TimerService>(io_service)
+ {
+ }
+
+ /// Constructor to set a particular expiry time as an absolute time.
+ /**
+ * This constructor creates a timer and sets the expiry time.
+ *
+ * @param io_service The io_service object that the timer will use to dispatch
+ * handlers for any asynchronous operations performed on the timer.
+ *
+ * @param expiry_time The expiry time to be used for the timer, expressed
+ * as an absolute time.
+ */
+ basic_deadline_timer(boost::asio::io_service& io_service,
+ const time_type& expiry_time)
+ : basic_io_object<TimerService>(io_service)
+ {
+ boost::system::error_code ec;
+ this->service.expires_at(this->implementation, expiry_time, ec);
+ boost::asio::detail::throw_error(ec);
+ }
+
+ /// Constructor to set a particular expiry time relative to now.
+ /**
+ * This constructor creates a timer and sets the expiry time.
+ *
+ * @param io_service The io_service object that the timer will use to dispatch
+ * handlers for any asynchronous operations performed on the timer.
+ *
+ * @param expiry_time The expiry time to be used for the timer, relative to
+ * now.
+ */
+ basic_deadline_timer(boost::asio::io_service& io_service,
+ const duration_type& expiry_time)
+ : basic_io_object<TimerService>(io_service)
+ {
+ boost::system::error_code ec;
+ this->service.expires_from_now(this->implementation, expiry_time, ec);
+ boost::asio::detail::throw_error(ec);
+ }
+
+ /// Cancel any asynchronous operations that are waiting on the timer.
+ /**
+ * This function forces the completion of any pending asynchronous wait
+ * operations against the timer. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * Cancelling the timer does not change the expiry time.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ *
+ * @throws boost::system::system_error Thrown on failure.
+ */
+ std::size_t cancel()
+ {
+ boost::system::error_code ec;
+ std::size_t s = this->service.cancel(this->implementation, ec);
+ boost::asio::detail::throw_error(ec);
+ return s;
+ }
+
+ /// Cancel any asynchronous operations that are waiting on the timer.
+ /**
+ * This function forces the completion of any pending asynchronous wait
+ * operations against the timer. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * Cancelling the timer does not change the expiry time.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ */
+ std::size_t cancel(boost::system::error_code& ec)
+ {
+ return this->service.cancel(this->implementation, ec);
+ }
+
+ /// Get the timer's expiry time as an absolute time.
+ /**
+ * This function may be used to obtain the timer's current expiry time.
+ * Whether the timer has expired or not does not affect this value.
+ */
+ time_type expires_at() const
+ {
+ return this->service.expires_at(this->implementation);
+ }
+
+ /// Set the timer's expiry time as an absolute time.
+ /**
+ * This function sets the expiry time. Any pending asynchronous wait
+ * operations will be cancelled. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ *
+ * @throws boost::system::system_error Thrown on failure.
+ */
+ std::size_t expires_at(const time_type& expiry_time)
+ {
+ boost::system::error_code ec;
+ std::size_t s = this->service.expires_at(
+ this->implementation, expiry_time, ec);
+ boost::asio::detail::throw_error(ec);
+ return s;
+ }
+
+ /// Set the timer's expiry time as an absolute time.
+ /**
+ * This function sets the expiry time. Any pending asynchronous wait
+ * operations will be cancelled. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ */
+ std::size_t expires_at(const time_type& expiry_time,
+ boost::system::error_code& ec)
+ {
+ return this->service.expires_at(this->implementation, expiry_time, ec);
+ }
+
+ /// Get the timer's expiry time relative to now.
+ /**
+ * This function may be used to obtain the timer's current expiry time.
+ * Whether the timer has expired or not does not affect this value.
+ */
+ duration_type expires_from_now() const
+ {
+ return this->service.expires_from_now(this->implementation);
+ }
+
+ /// Set the timer's expiry time relative to now.
+ /**
+ * This function sets the expiry time. Any pending asynchronous wait
+ * operations will be cancelled. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ *
+ * @throws boost::system::system_error Thrown on failure.
+ */
+ std::size_t expires_from_now(const duration_type& expiry_time)
+ {
+ boost::system::error_code ec;
+ std::size_t s = this->service.expires_from_now(
+ this->implementation, expiry_time, ec);
+ boost::asio::detail::throw_error(ec);
+ return s;
+ }
+
+ /// Set the timer's expiry time relative to now.
+ /**
+ * This function sets the expiry time. Any pending asynchronous wait
+ * operations will be cancelled. The handler for each cancelled operation will
+ * be invoked with the boost::asio::error::operation_aborted error code.
+ *
+ * @param expiry_time The expiry time to be used for the timer.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ *
+ * @return The number of asynchronous operations that were cancelled.
+ */
+ std::size_t expires_from_now(const duration_type& expiry_time,
+ boost::system::error_code& ec)
+ {
+ return this->service.expires_from_now(
+ this->implementation, expiry_time, ec);
+ }
+
+ /// Perform a blocking wait on the timer.
+ /**
+ * This function is used to wait for the timer to expire. This function
+ * blocks and does not return until the timer has expired.
+ *
+ * @throws boost::system::system_error Thrown on failure.
+ */
+ void wait()
+ {
+ boost::system::error_code ec;
+ this->service.wait(this->implementation, ec);
+ boost::asio::detail::throw_error(ec);
+ }
+
+ /// Perform a blocking wait on the timer.
+ /**
+ * This function is used to wait for the timer to expire. This function
+ * blocks and does not return until the timer has expired.
+ *
+ * @param ec Set to indicate what error occurred, if any.
+ */
+ void wait(boost::system::error_code& ec)
+ {
+ this->service.wait(this->implementation, ec);
+ }
+
+ /// Start an asynchronous wait on the timer.
+ /**
+ * This function may be used to initiate an asynchronous wait against the
+ * timer. It always returns immediately.
+ *
+ * For each call to async_wait(), the supplied handler will be called exactly
+ * once. The handler will be called when:
+ *
+ * @li The timer has expired.
+ *
+ * @li The timer was cancelled, in which case the handler is passed the error
+ * code boost::asio::error::operation_aborted.
+ *
+ * @param handler The handler to be called when the timer expires. Copies
+ * will be made of the handler as required. The function signature of the
+ * handler must be:
+ * @code void handler(
+ * const boost::system::error_code& error // Result of operation.
+ * ); @endcode
+ * Regardless of whether the asynchronous operation completes immediately or
+ * not, the handler will not be invoked from within this function. Invocation
+ * of the handler will be performed in a manner equivalent to using
+ * boost::asio::io_service::post().
+ */
+ template <typename WaitHandler>
+ void async_wait(WaitHandler handler)
+ {
+ this->service.async_wait(this->implementation, handler);
+ }
+};
+
+} // namespace asio
+} // namespace boost
+
+#include <boost/asio/detail/pop_options.hpp>
+
+#endif // BOOST_ASIO_BASIC_DEADLINE_TIMER_HPP