posix/include/psx/pdata.h

   1 /* $Id: pdata.h,v 1.2 2002/02/20 09:17:55 hyperion Exp $
   2  */
   3 /*
   4  * psx/pdata.h
   5  *
   6  * POSIX+ subsystem process environment data structure
   7  *
   8  * This file is part of the ReactOS Operating System.
   9  *
  10  * Contributors:
  11  *  Created by KJK::Hyperion <noog@libero.it>
  12  *
  13  *  THIS SOFTWARE IS NOT COPYRIGHTED
  14  *
  15  *  This source code is offered for use in the public domain. You may
  16  *  use, modify or distribute it freely.
  17  *
  18  *  This code is distributed in the hope that it will be useful but
  19  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  20  *  DISCLAMED. This includes but is not limited to warranties of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  22  *
  23  */
  24 #ifndef __PSX_PDATA_H_INCLUDED__
  25 #define __PSX_PDATA_H_INCLUDED__
  26
  27 /* INCLUDES */
  28 #include <ddk/ntddk.h>
  29 #include <ntdll/rtl.h>
  30 #include <limits.h>
  31 #include <psx/fdtable.h>
  32
  33 /* OBJECTS */
  34
  35 /* TYPES */
  36 typedef struct __tagPDX_PDATA
  37 {
  38  UNICODE_STRING  NativePathBuffer;
  39  UNICODE_STRING  CurDir;
  40  UNICODE_STRING  RootPath;
  41  HANDLE          RootHandle;
  42  __fdtable_t    *FdTable;
  43 } __PDX_PDATA, * __PPDX_PDATA;
  44
  45 /* CONSTANTS */
  46
  47 /* PROTOTYPES */
  48
  49 /* MACROS */
  50 #define __PdxAcquirePdataLock() (RtlAcquirePebLock())
  51 #define __PdxReleasePdataLock() (RtlReleasePebLock())
  52
  53 #define __PdxSetProcessData()(PPDATA) ((void)((NtCurrentPeb()->SubSystemData) = (PPDATA)))
  54 #define __PdxGetProcessData()         ((__PPDX_PDATA)(&(NtCurrentPeb()->SubSystemData)))
  55
  56 #define __PdxGetNativePathBuffer() ((PUNICODE_STRING)(&(__PdxGetProcessData()->NativePathBuffer)))
  57 #define __PdxGetCurDir()           ((PUNICODE_STRING)(&(__PdxGetProcessData()->CurDir)))
  58 #define __PdxGetRootPath()         ((PUNICODE_STRING)(&(__PdxGetProcessData()->RootPath)))
  59 #define __PdxGetRootHandle()       ((HANDLE)(__PdxGetProcessData()->RootHandle))
  60 #define __PdxGetFdTable()          ((__fdtable_t *)(__PdxGetProcessData()->FdTable))
  61
  62 #define __PdxSetNativePathBuffer(BUF)  ((void)((__PdxGetProcessData()->NativePathBuffer) = (BUF)))
  63 #define __PdxSetCurDir(CURDIR)         ((void)((__PdxGetProcessData()->CurDir) = (CURDIR)))
  64 #define __PdxSetRootPath(ROOTPATH)     ((void)((__PdxGetProcessData()->RootPath) = (ROOTPATH)))
  65 #define __PdxSetRootHandle(ROOTHANDLE) ((void)((__PdxGetProcessData()->RootHandle) = (ROOTHANDLE)))
  66 #define __PdxSetFdTable(FDTABLE)       ((void)((__PdxGetProcessData()->FdTable) = (FDTABLE)))
  67
  68 #endif /* __PSX_PDATA_H_INCLUDED__ */
  69
  70 /* EOF */
  71