firebird-mirror/src/common/ThreadStart.h

/*
 *	PROGRAM:	JRD access method
 *	MODULE:		thd.h
 *	DESCRIPTION:	Thread support definitions
 *
 * The contents of this file are subject to the Interbase Public
 * License Version 1.0 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy
 * of the License at http://www.Inprise.com/IPL.html
 *
 * Software distributed under the License is distributed on an
 * "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express
 * or implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code was created by Inprise Corporation
 * and its predecessors. Portions created by Inprise Corporation are
 * Copyright (C) Inprise Corporation.
 *
 * All Rights Reserved.
 * Contributor(s): ______________________________________.
 *
 * 2002.10.28 Sean Leyne - Completed removal of obsolete "DGUX" port
 *
 * 2002.10.29 Sean Leyne - Removed obsolete "Netware" port
 *
 * Alex Peshkov
 */

#ifndef JRD_THREADSTART_H
#define JRD_THREADSTART_H

#include "../common/ThreadData.h"

#ifdef WIN_NT
#include <windows.h>
#endif


// Thread priorities (may be ignored)

const int THREAD_high			= 1;
const int THREAD_medium_high	= 2;
const int THREAD_medium			= 3;
const int THREAD_medium_low		= 4;
const int THREAD_low			= 5;
const int THREAD_critical		= 6;


// Thread startup

// BRS 01/07/2004
// Hack due to a bug in mingw.
// The definition inside the thdd class should be replaced with the following one.
typedef THREAD_ENTRY_DECLARE ThreadEntryPoint(THREAD_ENTRY_PARAM);

#if defined(WIN_NT)
typedef DWORD ThreadId;
#elif defined(LINUX)
typedef int ThreadId;
#elif defined(USE_POSIX_THREADS)
typedef pthread_t ThreadId;
#else
error - unknown ThreadId type
#endif

class Thread
{
public:
#ifdef WIN_NT
	typedef HANDLE Handle;
#endif
#ifdef USE_POSIX_THREADS
	typedef pthread_t Handle;
#endif

	static void	start(ThreadEntryPoint* routine, void* arg, int priority_arg, Handle* p_handle = NULL);
	static void waitForCompletion(Handle& handle);
	static void kill(Handle& handle);

	static ThreadId getId();

	static void sleep(unsigned milliseconds);
	static void yield();
};

inline ThreadId getThreadId()
{
	return Thread::getId();
}

#endif // JRD_THREADSTART_H