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135 lines
4.7 KiB
C
135 lines
4.7 KiB
C
/* $Id: pdata.h,v 1.8 2002/10/29 04:45:13 rex Exp $
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*/
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/*
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* psx/pdata.h
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*
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* POSIX+ subsystem process environment data structure
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*
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* This file is part of the ReactOS Operating System.
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*
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* Contributors:
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* Created by KJK::Hyperion <noog@libero.it>
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*
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* THIS SOFTWARE IS NOT COPYRIGHTED
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*
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* This source code is offered for use in the public domain. You may
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* use, modify or distribute it freely.
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*
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* This code is distributed in the hope that it will be useful but
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* WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
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* DISCLAMED. This includes but is not limited to warranties of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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*/
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#ifndef __PSX_PDATA_H_INCLUDED__
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#define __PSX_PDATA_H_INCLUDED__
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/* INCLUDES */
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#include <ddk/ntddk.h>
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#include <ntdll/rtl.h>
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#include <limits.h>
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#include <psx/fdtable.h>
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/* OBJECTS */
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/* TYPES */
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typedef struct __tagPDX_PDATA
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{
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BOOL Spawned; /* TRUE if process has been created through __PdxSpawnPosixProcess() */
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int ArgCount; /* count of arguments passed to exec() */
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char **ArgVect; /* array of arguments passed to exec() */
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char ***Environment; /* pointer to user-provided environ variable */
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UNICODE_STRING NativePathBuffer; /* static buffer used by low-level calls for pathname conversions */
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UNICODE_STRING CurDir; /* current working directory */
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UNICODE_STRING RootPath; /* NT path to the process's root directory */
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HANDLE RootHandle; /* handle to the process's root directory */
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__fdtable_t FdTable; /* file descriptors table */
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/* WARNING: PRELIMINARY CODE FOR DEBUGGING PURPOSES ONLY - DO NOT CHANGE */
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CRITICAL_SECTION Lock;
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LONG TlsIndex;
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} __PDX_PDATA, * __PPDX_PDATA;
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/* serialized process data block, used by __PdxSpawnPosixProcess() and __PdxExecThunk().
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The layout of buffers inside the Buffer byte array is as following:
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ArgVect[0] + null byte
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ArgVect[1] + null byte
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...
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ArgVect[ArgCount - 1] + null byte
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Environment[0] + null byte
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Environment[1] + null byte
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...
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Environment[n - 1] + null byte (NOTE: the value of n is stored in ProcessData.Environment)
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CurDir.Buffer
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RootPath.Buffer
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FdTable.Descriptors[0]
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FdTable.Descriptors[1]
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...
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FdTable.Descriptors[FdTable.AllocatedDescriptors - 1]
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FdTable.Descriptors[x].ExtraData
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FdTable.Descriptors[y].ExtraData
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...
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padding for page boundary alignment
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*/
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typedef struct __tagPDX_SERIALIZED_PDATA
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{
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__PDX_PDATA ProcessData;
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ULONG AllocSize;
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BYTE Buffer[1];
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} __PDX_SERIALIZED_PDATA, *__PPDX_SERIALIZED_PDATA;
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typedef struct __tagPDX_TDATA
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{
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__PPDX_PDATA ProcessData;
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int ErrNum;
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} __PDX_TDATA, * __PPDX_TDATA;
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/* CONSTANTS */
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/* PROTOTYPES */
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NTSTATUS STDCALL __PdxSerializeProcessData(IN __PPDX_PDATA, OUT __PPDX_SERIALIZED_PDATA *);
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NTSTATUS STDCALL __PdxUnserializeProcessData(IN OUT __PPDX_SERIALIZED_PDATA *, OUT __PPDX_PDATA * OPTIONAL);
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NTSTATUS
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STDCALL
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__PdxProcessDataToProcessParameters
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(
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OUT PRTL_USER_PROCESS_PARAMETERS *ProcessParameters,
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IN __PPDX_PDATA ProcessData,
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IN PUNICODE_STRING ImageFile
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);
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/* MACROS */
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/* WARNING: PRELIMINARY CODE FOR DEBUGGING PURPOSES ONLY - DO NOT CHANGE */
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VOID __PdxSetProcessData(__PPDX_PDATA);
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__PPDX_PDATA __PdxGetProcessData(VOID);
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#include <ddk/ntddk.h>
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#define __PdxAcquirePdataLock() (RtlEnterCriticalSection(&__PdxGetProcessData()->Lock))
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#define __PdxReleasePdataLock() (RtlLeaveCriticalSection(&__PdxGetProcessData()->Lock))
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#if 0
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#define __PdxAcquirePdataLock() (RtlAcquirePebLock())
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#define __PdxReleasePdataLock() (RtlReleasePebLock())
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#define __PdxSetProcessData(PPDATA) ((void)((NtCurrentPeb()->SubSystemData) = (PPDATA)))
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#define __PdxGetProcessData() ((__PPDX_PDATA)(&(NtCurrentPeb()->SubSystemData)))
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#endif
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#define __PdxGetNativePathBuffer() ((PUNICODE_STRING)(&(__PdxGetProcessData()->NativePathBuffer)))
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#define __PdxGetCurDir() ((PUNICODE_STRING)(&(__PdxGetProcessData()->CurDir)))
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#define __PdxGetRootPath() ((PUNICODE_STRING)(&(__PdxGetProcessData()->RootPath)))
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#define __PdxGetRootHandle() ((HANDLE)(__PdxGetProcessData()->RootHandle))
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#define __PdxGetFdTable() ((__fdtable_t *)(__PdxGetProcessData()->FdTable))
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#define __PdxSetNativePathBuffer(BUF) ((void)((__PdxGetProcessData()->NativePathBuffer) = (BUF)))
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#define __PdxSetCurDir(CURDIR) ((void)((__PdxGetProcessData()->CurDir) = (CURDIR)))
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#define __PdxSetRootPath(ROOTPATH) ((void)((__PdxGetProcessData()->RootPath) = (ROOTPATH)))
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#define __PdxSetRootHandle(ROOTHANDLE) ((void)((__PdxGetProcessData()->RootHandle) = (ROOTHANDLE)))
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#define __PdxSetFdTable(FDTABLE) ((void)((__PdxGetProcessData()->FdTable) = (FDTABLE)))
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#endif /* __PSX_PDATA_H_INCLUDED__ */
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/* EOF */
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