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// ---------------------------------------------------------------------
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// pion: a Boost C++ framework for building lightweight HTTP interfaces
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// ---------------------------------------------------------------------
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// Copyright (C) 2007-2012 Cloudmeter, Inc. (http://www.cloudmeter.com)
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// Distributed under the Boost Software License, Version 1.0.
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// See http://www.boost.org/LICENSE_1_0.txt
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#ifndef __PION_PROCESS_HEADER__
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#define __PION_PROCESS_HEADER__
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#include <boost/noncopyable.hpp>
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#include <boost/thread/once.hpp>
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#include <boost/thread/mutex.hpp>
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#include <boost/thread/condition.hpp>
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#include <pion/config.hpp>
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namespace pion { // begin namespace pion
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/// process: class for managing process/service related functions
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class PION_API process :
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private boost::noncopyable
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/// default constructor
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/// signals the shutdown condition
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static void shutdown(void);
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/// blocks until the shutdown condition has been signaled
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static void wait_for_shutdown(void);
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/// sets up basic signal handling for the process
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static void initialize(void);
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/// fork process and run as a background daemon
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static void daemonize(void);
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/// data type for static/global process configuration information
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/// constructor just initializes native types
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config_type() : shutdown_now(false) {}
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/// true if we should shutdown now
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/// triggered when it is time to shutdown
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boost::condition shutdown_cond;
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/// used to protect the shutdown condition
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boost::mutex shutdown_mutex;
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/// returns a singleton instance of config_type
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static inline config_type& get_config(void) {
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boost::call_once(process::create_config, m_instance_flag);
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/// creates the config_type singleton
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static void create_config(void);
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/// used to ensure thread safety of the config_type singleton
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static boost::once_flag m_instance_flag;
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/// pointer to the config_type singleton
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static config_type * m_config_ptr;
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} // end namespace pion
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include/pion/process.hpp
