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/* ****************************************************************************
* eID Middleware Project.
* Copyright (C) 2008-2009 FedICT.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License version
* 3.0 as published by the Free Software Foundation.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, see
* http://www.gnu.org/licenses/.
**************************************************************************** */
#ifndef _FILE_THREAD
#define _FILE_THREAD
/* Thread handling: limit threads for single-thread sensitive code.
Mutexes are used to protect single-thread code against multiple threads.
Available marco's:
THREAD_OBJ -- Handle for threads
THREAD_INITFUNCTION -- Define thread function
THREAD_START -- Create thread
THREAD_END -- Exit from thread
THREAD_CLEANUP -- close the handles (cfr for windows)
*/
#ifdef WIN32
#define THREAD_CLEANUP(sync) if(sync){CloseHandle((HANDLE)sync);}
#else
#define THREAD_CLEANUP(sync)
#endif
/*------------------------------------- UNIX --------------------------------*/
#if ( defined( __UNIX__ ) || defined( __XMK__ ) ) && defined( USE_THREADS )
#if defined( __osf__ ) || defined( __alpha__ )
#define __C_ASM_H
#endif /* __osf__ __alpha__*/
#include <pthread.h>
#include <sys/time.h>
#ifdef __XMK__ /* Xilinx XMK */
#include <sys/process.h>
#include <sys/timer.h>
#endif /* __XMK__ */
#define THREAD_OBJ pthread_t
#define THREAD_INITFUNCTION( parm1, arg ) void *parm1( void *arg )
#define THREAD_START( function, arg, hThread, syncHandle, status ) { \
status = pthread_create( &hThread, NULL, function, arg ) ? \
CRYPT_ERROR : CRYPT_OK; \
syncHandle = hThread; }
#define THREAD_END( sync ) pthread_exit( ( void * ) 0 )
#if ( defined( __osf__ ) || defined( __alpha__ ) ) && \
!defined( pthread_self )
extern pthread_t pthread_self( void );
#endif /* __osf__ */
#ifdef _MPRAS
#undef THREAD_START
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
{ \
status = pthread_create( &hThread, pthread_attr_default, \
function, arg ) ? \
CRYPT_ERROR : CRYPT_OK ); \
syncHandle = ( long ) hThread; \
}
#endif /* _MPRAS */
/*------------------------------------- VxWorks --------------------------------*/
#elif defined( __VXWORKS__ )
#include <vxWorks.h>
#include <semLib.h>
#include <taskLib.h>
#define THREAD_OBJ int
/* if building for PPC: create tasks with FP register saving enabled */
#ifdef __ppc__
#define TASK_ATTRIBUTES VX_FP_TASK
#else
#define TASK_ATTRIBUTES 0
#endif /* __ppc__ */
#define THREAD_INITFUNCTION( parm1, arg ) thread_id parm1( void *arg )
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
{ \
syncHandle = semBCreate( SEM_Q_FIFO, SEM_EMPTY ); \
hThread = taskSpawn( NULL, T_PRIORITY, TASK_ATTRIBUTES, 16384, \
function, ( int ) arg, 0, 0, 0, 0, \
0, 0, 0, 0, 0 ); \
if( hThread == ERROR ) \
{ \
semDelete( syncHandle ); \
status = CRYPT_ERROR; \
} \
else \
status = CRYPT_OK; \
}
#define THREAD_END( sync ) semGive( sync ); \
exit( 0 )
/*------------------------------------- Win32/WINCE --------------------------------*/
#elif ( defined( __WIN32__ ) && !defined( NT_DRIVER ) ) || defined( __WINCE__ )
#ifndef __WINCE__
#include <process.h>
#endif /* __WINCE__ */
//#define THREAD_OBJ DWORD //object handle
#define THREAD_OBJ unsigned int //object handle
#define MUTEX_OBJ unsigned int // STH: HANDLE is a void * on VS2005 - WinXP
/*
InitializeCriticalSection(): throws exception STATUS_NO_MEMORY
EnterCriticalSection(): throws exception EXCEPTION_POSSIBLE_DEADLOCK if the critical section is corrupted
*/
#if defined( __WIN32__ )
#define THREAD_INITFUNCTION( parm1, arg ) \
unsigned __stdcall parm1( void *arg )
#if defined( _MSC_VER ) && VC_GE_2005( _MSC_VER )
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
{ \
uintptr_t oThread; \
oThread = _beginthreadex( NULL, 0, ( function ), ( arg ), 0, \
&hThread ); \
syncHandle = ( MUTEX_OBJ ) oThread; \
status = ( oThread == 0 ) ? CRYPT_ERROR : CRYPT_OK; \
}
#else
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
{ \
unsigned long oThread; \
oThread = _beginthreadex( NULL, 0, ( function ), ( arg ), 0, \
&hThread ); \
syncHandle = ( MUTEX_OBJ ) oThread; \
status = ( oThread == 0 ) ? CRYPT_ERROR : CRYPT_OK; \
}
#endif /* _MSC_VER */
#define THREAD_END( sync ) _endthreadex( 0 ); return( 0 )
#elif defined( __WINCE__ )
#define THREAD_INITFUNCTION( parm1, arg ) \
DWORD WINAPI parm1( void *arg )
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
{ \
HANDLE oThread; \
oThread = CreateThread( NULL, 0, ( function ), ( arg ), 0, \
&hThread ); \
syncHandle = oThread; \
status = ( oThread == NULL ) ? CRYPT_ERROR : CRYPT_OK; \
}
#define THREAD_END( sync ) ExitThread( 0 ); return( 0 )
#endif /* Win32 - WINCE */
#elif defined( __WIN32__ ) && defined( NT_DRIVER )
#define THREAD_OBJ HANDLE
#define MUTEX_OBJ HANDLE
#else /* OS-switch */
/*------------------------------------- default --------------------------------*/
/* for OS's without threading */
#define MUTEX_OBJ int
#define THREAD_OBJ int
#define THREAD_START( function, arg, hThread, syncHandle, status ) \
status = CRYPT_ERROR
#define THREAD_END( sync )
#endif /* OS-switch */
#endif /* _FILE_THREAD */
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