mirror of
https://github.com/zerotier/ZeroTierOne.git
synced 2024-12-24 07:06:39 +00:00
132 lines
2.9 KiB
C++
132 lines
2.9 KiB
C++
/*
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* ZeroTier One - Global Peer to Peer Ethernet
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* Copyright (C) 2012-2013 ZeroTier Networks LLC
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* --
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*
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* ZeroTier may be used and distributed under the terms of the GPLv3, which
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* are available at: http://www.gnu.org/licenses/gpl-3.0.html
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*
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* If you would like to embed ZeroTier into a commercial application or
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* redistribute it in a modified binary form, please contact ZeroTier Networks
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* LLC. Start here: http://www.zerotier.com/
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*/
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#ifndef _ZT_THREAD_HPP
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#define _ZT_THREAD_HPP
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#include <stdexcept>
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#include "Constants.hpp"
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#include "AtomicCounter.hpp"
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#ifdef __WINDOWS__
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todo need windows;
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <pthread.h>
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#include <unistd.h>
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namespace ZeroTier {
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template<typename C>
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static void *___zt_threadMain(void *instance)
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{
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try {
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((C *)instance)->threadMain();
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} catch ( ... ) {}
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return (void *)0;
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}
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/**
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* A thread of a given class type
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*
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* @tparam C Class using Thread
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*/
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template<typename C>
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class Thread
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{
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public:
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Thread()
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throw()
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{
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memset(&_tid,0,sizeof(_tid));
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}
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Thread(const Thread &t)
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throw()
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{
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memcpy(&_tid,&(t._tid),sizeof(_tid));
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}
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inline Thread &operator=(const Thread &t)
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throw()
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{
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memcpy(&_tid,&(t._tid),sizeof(_tid));
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return *this;
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}
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/**
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* Start a new thread
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*
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* @param instance Instance whose threadMain() method gets called by new thread
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* @return Thread identifier
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* @throws std::runtime_error Unable to create thread
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*/
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static inline Thread start(C *instance)
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throw(std::runtime_error)
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{
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Thread t;
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if (pthread_create(&t._tid,(const pthread_attr_t *)0,&___zt_threadMain<C>,instance))
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throw std::runtime_error("pthread_create() failed, unable to create thread");
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return t;
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}
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/**
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* Join to a thread, waiting for it to terminate
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*
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* @param t Thread to join
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*/
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static inline void join(const Thread &t)
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{
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pthread_join(t._tid,(void **)0);
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}
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/**
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* Sleep the current thread
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*
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* @param ms Number of milliseconds to sleep
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*/
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static inline void sleep(unsigned long ms)
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{
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usleep(ms * 1000);
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}
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private:
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pthread_t _tid;
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};
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} // namespace ZeroTier
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#endif // __WINDOWS__ / !__WINDOWS__
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#endif
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