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/*
Copyright (c) 2007-2010 iMatix Corporation
This file is part of 0MQ.
0MQ is free software; you can redistribute it and/or modify it under
the terms of the Lesser GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
0MQ is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Lesser GNU General Public License for more details.
You should have received a copy of the Lesser GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __ZMQ_THREAD_HPP_INCLUDED__
#define __ZMQ_THREAD_HPP_INCLUDED__
#include "platform.hpp"
#ifdef ZMQ_HAVE_WINDOWS
#include "windows.hpp"
#else
#include <pthread.h>
#endif
namespace zmq
{
typedef void (thread_fn) (void*);
// Class encapsulating OS thread. Thread initiation/termination is done
// using special functions rather than in constructor/destructor so that
// thread isn't created during object construction by accident, causing
// newly created thread to access half-initialised object. Same applies
// to the destruction process: Thread should be terminated before object
// destruction begins, otherwise it can access half-destructed object.
class thread_t
{
public:
inline thread_t ()
{
}
// Creates OS thread. 'tfn' is main thread function. It'll be passed
// 'arg' as an argument.
void start (thread_fn *tfn_, void *arg_);
// Waits for thread termination.
void stop ();
#ifdef ZMQ_HAVE_WINDOWS
typedef DWORD id_t;
#else
typedef pthread_t id_t;
#endif
static id_t id ();
static bool equal (id_t id1_, id_t id2_);
private:
#ifdef ZMQ_HAVE_WINDOWS
static unsigned int __stdcall thread_routine (void *arg_);
HANDLE descriptor;
#else
static void *thread_routine (void *arg_);
pthread_t descriptor;
#endif
thread_fn *tfn;
void *arg;
thread_t (const thread_t&);
void operator = (const thread_t&);
};
}
#endif
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