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19af5cdb7c
Signed-off-by: Martin Olsson <martin@minimum.se> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
359 lines
10 KiB
C
359 lines
10 KiB
C
/* BSDI osd_util.h,v 1.8 1998/06/03 19:14:58 karels Exp */
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/*
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* Copyright (c) 1996-1999 Distributed Processing Technology Corporation
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* All rights reserved.
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*
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* Redistribution and use in source form, with or without modification, are
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* permitted provided that redistributions of source code must retain the
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* above copyright notice, this list of conditions and the following disclaimer.
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*
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* This software is provided `as is' by Distributed Processing Technology and
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* any express or implied warranties, including, but not limited to, the
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* implied warranties of merchantability and fitness for a particular purpose,
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* are disclaimed. In no event shall Distributed Processing Technology be
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* liable for any direct, indirect, incidental, special, exemplary or
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* consequential damages (including, but not limited to, procurement of
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* substitute goods or services; loss of use, data, or profits; or business
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* interruptions) however caused and on any theory of liability, whether in
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* contract, strict liability, or tort (including negligence or otherwise)
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* arising in any way out of the use of this driver software, even if advised
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* of the possibility of such damage.
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*
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*/
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#ifndef __OSD_UTIL_H
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#define __OSD_UTIL_H
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/*File - OSD_UTIL.H
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****************************************************************************
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*
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*Description:
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*
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* This file contains defines and function prototypes that are
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*operating system dependent. The resources defined in this file
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*are not specific to any particular application.
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*
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*Copyright Distributed Processing Technology, Corp.
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* 140 Candace Dr.
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* Maitland, Fl. 32751 USA
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* Phone: (407) 830-5522 Fax: (407) 260-5366
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* All Rights Reserved
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*
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*Author: Doug Anderson
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*Date: 1/7/94
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*
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*Editors:
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*
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*Remarks:
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*
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*
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*****************************************************************************/
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/*Definitions - Defines & Constants ----------------------------------------- */
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/*----------------------------- */
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/* Operating system selections: */
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/*----------------------------- */
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/*#define _DPT_MSDOS */
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/*#define _DPT_WIN_3X */
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/*#define _DPT_WIN_4X */
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/*#define _DPT_WIN_NT */
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/*#define _DPT_NETWARE */
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/*#define _DPT_OS2 */
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/*#define _DPT_SCO */
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/*#define _DPT_UNIXWARE */
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/*#define _DPT_SOLARIS */
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/*#define _DPT_NEXTSTEP */
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/*#define _DPT_BANYAN */
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/*-------------------------------- */
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/* Include the OS specific defines */
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/*-------------------------------- */
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/*#define OS_SELECTION From Above List */
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/*#define SEMAPHORE_T ??? */
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/*#define DLL_HANDLE_T ??? */
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#if (defined(KERNEL) && (defined(__FreeBSD__) || defined(__bsdi__)))
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# include "i386/isa/dpt_osd_defs.h"
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#else
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# include "osd_defs.h"
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#endif
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#ifndef DPT_UNALIGNED
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#define DPT_UNALIGNED
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#endif
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#ifndef DPT_EXPORT
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#define DPT_EXPORT
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#endif
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#ifndef DPT_IMPORT
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#define DPT_IMPORT
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#endif
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#ifndef DPT_RUNTIME_IMPORT
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#define DPT_RUNTIME_IMPORT DPT_IMPORT
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#endif
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/*--------------------- */
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/* OS dependent defines */
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/*--------------------- */
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#if defined (_DPT_MSDOS) || defined (_DPT_WIN_3X)
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#define _DPT_16_BIT
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#else
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#define _DPT_32_BIT
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#endif
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#if defined (_DPT_SCO) || defined (_DPT_UNIXWARE) || defined (_DPT_SOLARIS) || defined (_DPT_AIX) || defined (SNI_MIPS) || defined (_DPT_BSDI) || defined (_DPT_FREE_BSD) || defined(_DPT_LINUX)
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#define _DPT_UNIX
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#endif
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#if defined (_DPT_WIN_3x) || defined (_DPT_WIN_4X) || defined (_DPT_WIN_NT) \
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|| defined (_DPT_OS2)
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#define _DPT_DLL_SUPPORT
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#endif
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#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X) && !defined (_DPT_NETWARE)
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#define _DPT_PREEMPTIVE
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#endif
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#if !defined (_DPT_MSDOS) && !defined (_DPT_WIN_3X)
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#define _DPT_MULTI_THREADED
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#endif
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#if !defined (_DPT_MSDOS)
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#define _DPT_MULTI_TASKING
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#endif
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/* These exist for platforms that */
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/* chunk when accessing mis-aligned */
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/* data */
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#if defined (SNI_MIPS) || defined (_DPT_SOLARIS)
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#if defined (_DPT_BIG_ENDIAN)
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#if !defined (_DPT_STRICT_ALIGN)
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#define _DPT_STRICT_ALIGN
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#endif
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#endif
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#endif
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/* Determine if in C or C++ mode */
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#ifdef __cplusplus
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#define _DPT_CPP
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#else
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#define _DPT_C
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#endif
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/*-------------------------------------------------------------------*/
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/* Under Solaris the compiler refuses to accept code like: */
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/* { {"DPT"}, 0, NULL .... }, */
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/* and complains about the {"DPT"} part by saying "cannot use { } */
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/* to initialize char*". */
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/* */
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/* By defining these ugly macros we can get around this and also */
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/* not have to copy and #ifdef large sections of code. I know that */
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/* these macros are *really* ugly, but they should help reduce */
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/* maintenance in the long run. */
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/* */
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/*-------------------------------------------------------------------*/
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#if !defined (DPTSQO)
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#if defined (_DPT_SOLARIS)
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#define DPTSQO
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#define DPTSQC
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#else
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#define DPTSQO {
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#define DPTSQC }
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#endif /* solaris */
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#endif /* DPTSQO */
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/*---------------------- */
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/* OS dependent typedefs */
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/*---------------------- */
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#if defined (_DPT_MSDOS) || defined (_DPT_SCO)
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#define BYTE unsigned char
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#define WORD unsigned short
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#endif
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#ifndef _DPT_TYPEDEFS
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#define _DPT_TYPEDEFS
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typedef unsigned char uCHAR;
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typedef unsigned short uSHORT;
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typedef unsigned int uINT;
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typedef unsigned long uLONG;
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typedef union {
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uCHAR u8[4];
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uSHORT u16[2];
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uLONG u32;
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} access_U;
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#endif
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#if !defined (NULL)
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#define NULL 0
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#endif
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/*Prototypes - function ----------------------------------------------------- */
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#ifdef __cplusplus
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extern "C" { /* Declare all these functions as "C" functions */
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#endif
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/*------------------------ */
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/* Byte reversal functions */
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/*------------------------ */
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/* Reverses the byte ordering of a 2 byte variable */
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#if (!defined(osdSwap2))
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uSHORT osdSwap2(DPT_UNALIGNED uSHORT *);
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#endif // !osdSwap2
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/* Reverses the byte ordering of a 4 byte variable and shifts left 8 bits */
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#if (!defined(osdSwap3))
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uLONG osdSwap3(DPT_UNALIGNED uLONG *);
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#endif // !osdSwap3
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#ifdef _DPT_NETWARE
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#include "novpass.h" /* For DPT_Bswapl() prototype */
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/* Inline the byte swap */
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#ifdef __cplusplus
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inline uLONG osdSwap4(uLONG *inLong) {
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return *inLong = DPT_Bswapl(*inLong);
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}
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#else
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#define osdSwap4(inLong) DPT_Bswapl(inLong)
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#endif // cplusplus
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#else
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/* Reverses the byte ordering of a 4 byte variable */
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# if (!defined(osdSwap4))
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uLONG osdSwap4(DPT_UNALIGNED uLONG *);
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# endif // !osdSwap4
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/* The following functions ALWAYS swap regardless of the *
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* presence of DPT_BIG_ENDIAN */
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uSHORT trueSwap2(DPT_UNALIGNED uSHORT *);
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uLONG trueSwap4(DPT_UNALIGNED uLONG *);
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#endif // netware
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/*-------------------------------------*
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* Network order swap functions *
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* *
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* These functions/macros will be used *
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* by the structure insert()/extract() *
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* functions. *
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*
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* We will enclose all structure *
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* portability modifications inside *
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* #ifdefs. When we are ready, we *
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* will #define DPT_PORTABLE to begin *
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* using the modifications. *
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*-------------------------------------*/
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uLONG netSwap4(uLONG val);
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#if defined (_DPT_BIG_ENDIAN)
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// for big-endian we need to swap
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#ifndef NET_SWAP_2
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#define NET_SWAP_2(x) (((x) >> 8) | ((x) << 8))
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#endif // NET_SWAP_2
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#ifndef NET_SWAP_4
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#define NET_SWAP_4(x) netSwap4((x))
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#endif // NET_SWAP_4
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#else
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// for little-endian we don't need to do anything
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#ifndef NET_SWAP_2
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#define NET_SWAP_2(x) (x)
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#endif // NET_SWAP_2
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#ifndef NET_SWAP_4
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#define NET_SWAP_4(x) (x)
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#endif // NET_SWAP_4
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#endif // big endian
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/*----------------------------------- */
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/* Run-time loadable module functions */
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/*----------------------------------- */
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/* Loads the specified run-time loadable DLL */
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DLL_HANDLE_T osdLoadModule(uCHAR *);
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/* Unloads the specified run-time loadable DLL */
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uSHORT osdUnloadModule(DLL_HANDLE_T);
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/* Returns a pointer to a function inside a run-time loadable DLL */
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void * osdGetFnAddr(DLL_HANDLE_T,uCHAR *);
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/*--------------------------------------- */
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/* Mutually exclusive semaphore functions */
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/*--------------------------------------- */
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/* Create a named semaphore */
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SEMAPHORE_T osdCreateNamedSemaphore(char *);
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/* Create a mutually exlusive semaphore */
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SEMAPHORE_T osdCreateSemaphore(void);
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/* create an event semaphore */
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SEMAPHORE_T osdCreateEventSemaphore(void);
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/* create a named event semaphore */
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SEMAPHORE_T osdCreateNamedEventSemaphore(char *);
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/* Destroy the specified mutually exclusive semaphore object */
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uSHORT osdDestroySemaphore(SEMAPHORE_T);
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/* Request access to the specified mutually exclusive semaphore */
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uLONG osdRequestSemaphore(SEMAPHORE_T,uLONG);
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/* Release access to the specified mutually exclusive semaphore */
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uSHORT osdReleaseSemaphore(SEMAPHORE_T);
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/* wait for a event to happen */
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uLONG osdWaitForEventSemaphore(SEMAPHORE_T, uLONG);
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/* signal an event */
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uLONG osdSignalEventSemaphore(SEMAPHORE_T);
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/* reset the event */
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uLONG osdResetEventSemaphore(SEMAPHORE_T);
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/*----------------- */
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/* Thread functions */
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/*----------------- */
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/* Releases control to the task switcher in non-preemptive */
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/* multitasking operating systems. */
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void osdSwitchThreads(void);
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/* Starts a thread function */
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uLONG osdStartThread(void *,void *);
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/* what is my thread id */
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uLONG osdGetThreadID(void);
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/* wakes up the specifed thread */
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void osdWakeThread(uLONG);
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/* osd sleep for x milliseconds */
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void osdSleep(uLONG);
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#define DPT_THREAD_PRIORITY_LOWEST 0x00
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#define DPT_THREAD_PRIORITY_NORMAL 0x01
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#define DPT_THREAD_PRIORITY_HIGHEST 0x02
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uCHAR osdSetThreadPriority(uLONG tid, uCHAR priority);
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#ifdef __cplusplus
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} /* end the xtern "C" declaration */
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#endif
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#endif /* osd_util_h */
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