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/*
* Copyright (C) 2001-2019 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, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef _WIN32
#include "w.h"
#else
#include <pthread.h>
#include <sched.h>
#include <sys/resource.h>
#include <unistd.h>
#endif
#include <cstdint>
#include "NonCopyable.h"
#include "Exception.h"
namespace dcpp {
STANDARD_EXCEPTION(ThreadException);
class Thread : private NonCopyable
{
public:
#ifdef _WIN32
enum Priority {
IDLE = THREAD_PRIORITY_IDLE,
LOW = THREAD_PRIORITY_BELOW_NORMAL,
NORMAL = THREAD_PRIORITY_NORMAL,
HIGH = THREAD_PRIORITY_ABOVE_NORMAL
};
Thread(): threadHandle(INVALID_HANDLE_VALUE), threadId(0){ }
virtual ~Thread() {
if(threadHandle != INVALID_HANDLE_VALUE)
CloseHandle(threadHandle);
}
void start();
void join() {
if(threadHandle == INVALID_HANDLE_VALUE) {
return;
}
WaitForSingleObject(threadHandle, INFINITE);
CloseHandle(threadHandle);
threadHandle = INVALID_HANDLE_VALUE;
}
void setThreadPriority(Priority p) { ::SetThreadPriority(threadHandle, p); }
static void sleep(uint32_t millis) { ::Sleep(millis); }
static void yield() { ::Sleep(0); }
#else
enum Priority {
IDLE = 1,
LOW = 1,
NORMAL = 0,
HIGH = -1
};
Thread(): threadHandle(0) { }
virtual ~Thread() {
if(threadHandle != 0) {
pthread_detach(threadHandle);
}
}
void start();
void join() {
if (threadHandle) {
pthread_join(threadHandle, 0);
threadHandle = 0;
}
}
#ifndef __HAIKU__
void setThreadPriority(Priority p) { setpriority(PRIO_PROCESS, 0, p); }
#else
void setThreadPriority(Priority p) { }
#endif
static void sleep(uint32_t millis) { ::usleep(millis*1000); }
static void yield() { ::sched_yield(); }
#endif
protected:
virtual int run() = 0;
#ifdef _WIN32
HANDLE threadHandle;
DWORD threadId;
static DWORD WINAPI starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return 0;
}
#else
pthread_t threadHandle;
static void* starter(void* p) {
Thread* t = (Thread*)p;
t->run();
return NULL;
}
#endif
};
} // namespace dcpp
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