/usr/include/pion/tcp/timer.hpp is in libpion-dev 5.0.4+dfsg-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// pion: a Boost C++ framework for building lightweight HTTP interfaces
// ---------------------------------------------------------------------
// Copyright (C) 2007-2012 Cloudmeter, Inc. (http://www.cloudmeter.com)
//
// Distributed under the Boost Software License, Version 1.0.
// See http://www.boost.org/LICENSE_1_0.txt
//
#ifndef __PION_TCP_TIMER_HEADER__
#define __PION_TCP_TIMER_HEADER__
#include <boost/asio.hpp>
#include <boost/bind.hpp>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
#include <boost/thread/mutex.hpp>
#include <pion/config.hpp>
#include <pion/tcp/connection.hpp>
namespace pion { // begin namespace pion
namespace tcp { // begin namespace tcp
///
/// timer: helper class used to time-out TCP connections
///
class timer
: public boost::enable_shared_from_this<timer>
{
public:
/**
* creates a new TCP connection timer
*
* @param conn_ptr pointer to TCP connection to monitor
*/
timer(tcp::connection_ptr& conn_ptr);
/**
* starts a timer for closing a TCP connection
*
* @param seconds number of seconds before the timeout triggers
*/
void start(const boost::uint32_t seconds);
/// cancel the timer (operation completed)
void cancel(void);
private:
/**
* Callback handler for the deadline timer
*
* @param ec deadline timer error status code
*/
void timer_callback(const boost::system::error_code& ec);
/// pointer to the TCP connection that is being monitored
tcp::connection_ptr m_conn_ptr;
/// deadline timer used to timeout TCP operations
boost::asio::deadline_timer m_timer;
/// mutex used to synchronize the TCP connection timer
boost::mutex m_mutex;
/// true if the deadline timer is active
bool m_timer_active;
/// true if the timer was cancelled (operation completed)
bool m_was_cancelled;
};
/// shared pointer to a timer object
typedef boost::shared_ptr<timer> timer_ptr;
} // end namespace tcp
} // end namespace pion
#endif
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