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/*
* Copyright (C) 2001-2006 Jacek Sieka, arnetheduck on gmail point com
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#if !defined(THREAD_H)
#define THREAD_H
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#ifndef _WIN32
#include <pthread.h>
#include <sched.h>
#include <sys/resource.h>
#endif
#include "Exception.h"
STANDARD_EXCEPTION(ThreadException);
class Thread
{
public:
#ifdef _WIN32
enum Priority {
IDLE = THREAD_PRIORITY_IDLE,
LOW = THREAD_PRIORITY_BELOW_NORMAL,
NORMAL = THREAD_PRIORITY_NORMAL,
HIGH = THREAD_PRIORITY_ABOVE_NORMAL
};
Thread() throw() : threadHandle(NULL), threadId(0){ }
virtual ~Thread() {
if(threadHandle)
CloseHandle(threadHandle);
}
void start() throw(ThreadException);
void join() throw(ThreadException) {
if(threadHandle == NULL) {
return;
}
WaitForSingleObject(threadHandle, INFINITE);
CloseHandle(threadHandle);
threadHandle = NULL;
}
void setThreadPriority(Priority p) throw() { ::SetThreadPriority(threadHandle, p); }
static void sleep(u_int32_t millis) { ::Sleep(millis); }
static void yield() { ::Sleep(1); }
static long safeInc(volatile long& v) { return InterlockedIncrement(&v); }
static long safeDec(volatile long& v) { return InterlockedDecrement(&v); }
static long safeExchange(volatile long& target, long value) { return InterlockedExchange(&target, value); }
#else
enum Priority {
IDLE = 1,
LOW = 1,
NORMAL = 0,
HIGH = -1
};
Thread() throw() : threadHandle(0) { }
virtual ~Thread() {
if(threadHandle != 0) {
pthread_detach(threadHandle);
}
}
void start() throw(ThreadException);
void join() throw() {
if (threadHandle) {
pthread_join(threadHandle, 0);
threadHandle = 0;
}
}
void setThreadPriority(Priority p) { setpriority(PRIO_PROCESS, 0, p); }
static void sleep(u_int32_t millis) { ::usleep(millis*1000); }
static void yield() { ::sched_yield(); }
static long safeInc(volatile long& v) {
pthread_mutex_lock(&mtx);
long ret = ++v;
pthread_mutex_unlock(&mtx);
return ret;
}
static long safeDec(volatile long& v) {
pthread_mutex_lock(&mtx);
long ret = --v;
pthread_mutex_unlock(&mtx);
return ret;
}
#endif
protected:
virtual int run() = 0;
private:
Thread(const Thread&);
Thread& operator=(const Thread&);
#ifdef _WIN32
HANDLE threadHandle;
DWORD threadId;
static DWORD WINAPI starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return 0;
}
#else
static pthread_mutex_t mtx;
pthread_t threadHandle;
static void* starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return NULL;
}
#endif
};
#endif // !defined(THREAD_H)
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