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/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2012-2013 ZeroTier Networks LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include "Thread.hpp"
#if defined(__APPLE__) || defined(__linux__) || defined(linux) || defined(__LINUX__) || defined(__linux)
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <pthread.h>
#include <unistd.h>
#include <stdexcept>
extern "C" {
static void *__m_thread_main(void *ptr)
{
((ZeroTier::Thread *)ptr)->__intl_run();
return (void *)0;
}
}
namespace ZeroTier {
Thread::Thread() :
suicidalThread(false),
_impl(malloc(sizeof(pthread_t))),
_running()
{
memset(_impl,0,sizeof(pthread_t));
}
Thread::~Thread()
{
free(_impl);
}
void Thread::start()
{
if (!*_running) {
++_running;
pthread_create((pthread_t *)_impl,(const pthread_attr_t *)0,&__m_thread_main,(void *)this);
}
}
void Thread::join()
{
void *tmp;
if (*_running)
pthread_join(*((pthread_t *)_impl),&tmp);
}
void Thread::sleep(unsigned long ms)
{
usleep(ms);
}
void Thread::__intl_run()
{
for(;;) {
_notInit = false;
this->main();
if (suicidalThread) {
delete this;
return;
}
if (_notInit) // UGLY ASS HACK: see main()
usleep(50);
else break;
}
--_running;
}
void Thread::main()
throw()
{
_notInit = true; // UGLY ASS HACK: retry if subclass has not defined virtual function pointer yet
}
} // namespace ZeroTier
#endif
#ifdef _WIN32
#include <Windows.h>
#include <stdio.h>
#include <stdlib.h>
DWORD WINAPI __m_thread_main(LPVOID lpParam)
{
((ZeroTier::Thread *)lpParam)->__intl_run();
return 0;
}
struct __m_thread_info
{
HANDLE threadHandle;
DWORD threadId;
bool started;
};
namespace ZeroTier {
Thread::Thread() :
suicidalThread(false),
_impl(malloc(sizeof(__m_thread_info))),
_running()
{
memset(_impl,0,sizeof(__m_thread_info));
}
Thread::~Thread()
{
if (((__m_thread_info *)_impl)->started)
CloseHandle(((__m_thread_info *)_impl)->threadHandle);
free(_impl);
}
void Thread::start()
{
if (!*_running) {
++_running;
if ((((__m_thread_info *)_impl)->threadHandle = CreateThread(NULL,0,__m_thread_main,this,0,&(((__m_thread_info *)_impl)->threadId))) != NULL) {
((__m_thread_info *)_impl)->started = true;
}
}
}
void Thread::join()
{
if (*_running)
WaitForSingleObject(((__m_thread_info *)_impl)->threadHandle,INFINITE);
}
void Thread::__intl_run()
{
for(;;) {
_notInit = false;
this->main();
if (suicidalThread) {
delete this;
return;
}
if (_notInit)
Thread::sleep(50);
else break;
}
--_running;
}
void Thread::main()
throw()
{
_notInit = true; // HACK: retry if subclass has not defined virtual function pointer yet
}
struct _Thread_RunInBackgroundData
{
void (*func)(void *);
void *ptr;
HANDLE threadHandle;
DWORD threadId;
};
} // namespace ZeroTier
#endif
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