312 lines
12 KiB
C
312 lines
12 KiB
C
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/*** ctxt.h - AML context structures and definitions
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*
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* Copyright (c) 1996,1997 Microsoft Corporation
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* Author: Michael Tsang (MikeTs)
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* Created 06/13/97
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*
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* MODIFICATION HISTORY
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*/
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#ifndef _CTXT_H
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#define _CTXT_H
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/*** Type and Structure definitions
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*/
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typedef struct _ctxt CTXT, *PCTXT, **PPCTXT;
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typedef struct _heap HEAP, *PHEAP;
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typedef NTSTATUS (LOCAL *PFNPARSE)(PCTXT, PVOID, NTSTATUS);
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typedef NTSTATUS (LOCAL *PFN)();
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typedef struct _framehdr
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{
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ULONG dwSig; //frame object signature
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ULONG dwLen; //frame object length
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ULONG dwfFrame; //frame flags
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PFNPARSE pfnParse; //frame object parse function
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} FRAMEHDR, *PFRAMEHDR;
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#define FRAMEF_STAGE_MASK 0x0000000f
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#define FRAMEF_CONTEXT_MASK 0xffff0000
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typedef struct _post
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{
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FRAMEHDR FrameHdr; //frame header
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ULONG_PTR uipData1; //data1
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ULONG_PTR uipData2; //data2
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POBJDATA pdataResult; //points to result object
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} POST, *PPOST;
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#define SIG_POST 'TSOP'
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typedef struct _scope
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{
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FRAMEHDR FrameHdr; //frame header
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PUCHAR pbOpEnd; //points to the end of scope
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PUCHAR pbOpRet; //points to return address of scope
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PNSOBJ pnsPrevScope; //points to previous scope
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POBJOWNER pownerPrev; //points to previous object owner
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PHEAP pheapPrev; //points to previous heap
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POBJDATA pdataResult; //points to result object
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} SCOPE, *PSCOPE;
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#define SIG_SCOPE 'POCS'
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#define SCOPEF_FIRST_TERM 0x00010000
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typedef struct _call
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{
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FRAMEHDR FrameHdr; //frame header
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struct _call *pcallPrev; //points to previous call frame
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POBJOWNER pownerPrev; //points to previous object owner
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PNSOBJ pnsMethod; //points to method object
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int iArg; //next argument to be parsed
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int icArgs; //number of arguments
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POBJDATA pdataArgs; //points to the argument array
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OBJDATA Locals[MAX_NUM_LOCALS]; //arrays of locals
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POBJDATA pdataResult; //points to result object
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} CALL, *PCALL;
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#define SIG_CALL 'LLAC'
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#define CALLF_NEED_MUTEX 0x00010000
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#define CALLF_ACQ_MUTEX 0x00020000
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#define CALLF_INVOKE_CALL 0x00040000
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typedef struct _nestedctxt
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{
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FRAMEHDR FrameHdr; //frame header
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PNSOBJ pnsObj; //points to current object of evaluation
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PNSOBJ pnsScope; //points to current scope
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OBJDATA Result; //to hold result data
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PFNACB pfnAsyncCallBack; //async completion callback function
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POBJDATA pdataCallBack; //points to return data of eval.
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PVOID pvContext; //context data for async callback
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ULONG dwfPrevCtxt; //save previous context flags
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struct _nestedctxt *pnctxtPrev; //save previous nested context frame
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} NESTEDCTXT, *PNESTEDCTXT;
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#define SIG_NESTEDCTXT 'XTCN'
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typedef struct _term
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{
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FRAMEHDR FrameHdr; //frame header
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PUCHAR pbOpTerm; //points to opcode of this term
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PUCHAR pbOpEnd; //points to the end of the term
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PUCHAR pbScopeEnd; //points to the end of the scope
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PAMLTERM pamlterm; //points to AMLTERM for this term
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PNSOBJ pnsObj; //to store object created by this term
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int iArg; //next argument to be parsed
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int icArgs; //number of arguments
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POBJDATA pdataArgs; //points to the argument array
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POBJDATA pdataResult; //points to result object
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} TERM, *PTERM;
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#define SIG_TERM 'MRET'
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typedef struct _package
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{
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FRAMEHDR FrameHdr; //frame header
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PPACKAGEOBJ ppkgobj; //points to the package object
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int iElement; //next element to parse
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PUCHAR pbOpEnd; //points to package end
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} PACKAGE, *PPACKAGE;
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#define SIG_PACKAGE 'FGKP'
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typedef struct _acquire
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{
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FRAMEHDR FrameHdr; //frame header
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PMUTEXOBJ pmutex; //points to the mutex object data
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USHORT wTimeout; //timeout value
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POBJDATA pdataResult; //points to result object
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} ACQUIRE, *PACQUIRE;
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#define SIG_ACQUIRE 'FQCA'
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#define ACQF_NEED_GLOBALLOCK 0x00010000
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#define ACQF_HAVE_GLOBALLOCK 0x00020000
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#define ACQF_SET_RESULT 0x00040000
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typedef struct _accfieldunit
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{
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FRAMEHDR FrameHdr; //frame header
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POBJDATA pdataObj; //points to field unit object data
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POBJDATA pdata; //points to source/result object
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} ACCFIELDUNIT, *PACCFIELDUNIT;
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#define SIG_ACCFIELDUNIT 'UFCA'
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#define AFUF_READFIELDUNIT 0x00010000
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#define AFUF_HAVE_GLOBALLOCK 0x00020000
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typedef struct _wrfieldloop
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{
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FRAMEHDR FrameHdr; //frame header
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POBJDATA pdataObj; //points to object to be written
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PFIELDDESC pfd; //points to FieldDesc
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PUCHAR pbBuff; //points to source buffer
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ULONG dwBuffSize; //source buffer size
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ULONG dwDataInc; //data write increment
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} WRFIELDLOOP, *PWRFIELDLOOP;
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#define SIG_WRFIELDLOOP 'LFRW'
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typedef struct _accfieldobj
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{
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FRAMEHDR FrameHdr; //frame header
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POBJDATA pdataObj; //object to be read
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PUCHAR pbBuff; //points to target buffer
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PUCHAR pbBuffEnd; //points to target buffer end
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ULONG dwAccSize; //access size
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ULONG dwcAccesses; //number of accesses
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ULONG dwDataMask; //data mask
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int iLBits; //number of left bits
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int iRBits; //number of right bits
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int iAccess; //index to number of accesses
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ULONG dwData; //temp. data
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FIELDDESC fd;
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} ACCFIELDOBJ, *PACCFIELDOBJ;
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#define SIG_ACCFIELDOBJ 'OFCA'
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typedef struct _preservewrobj
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{
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FRAMEHDR FrameHdr; //frame header
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POBJDATA pdataObj; //object to be read
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ULONG dwWriteData; //data to be written
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ULONG dwPreserveMask; //preserve bit mask
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ULONG dwReadData; //temp data read
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} PRESERVEWROBJ, *PPRESERVEWROBJ;
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#define SIG_PRESERVEWROBJ 'ORWP'
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typedef struct _wrcookacc
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{
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FRAMEHDR FrameHdr; //frame header
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PNSOBJ pnsBase; //points to opregion object
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PRSACCESS prsa; //points to RSACCESS
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ULONG dwAddr; //region space address
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ULONG dwSize; //size of access
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ULONG dwData; //data to be written
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ULONG dwDataMask; //data mask
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ULONG dwDataTmp; //temp. data
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BOOLEAN fPreserve; //TRUE if need preserve bits
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} WRCOOKACC, *PWRCOOKACC;
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#define SIG_WRCOOKACC 'ACRW'
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typedef struct _sleep
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{
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FRAMEHDR FrameHdr; //frame header
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LIST_ENTRY ListEntry; //to link the sleep requests together
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LARGE_INTEGER SleepTime; //wake up time
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PCTXT Context; //points to current context
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} SLEEP, *PSLEEP;
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#define SIG_SLEEP 'PELS'
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typedef struct _resource
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{
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ULONG dwResType;
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struct _ctxt *pctxtOwner;
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PVOID pvResObj;
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LIST list;
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} RESOURCE, *PRESOURCE;
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#define RESTYPE_MUTEX 1
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typedef struct _heapobjhdr
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{
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ULONG dwSig; //heap object signature
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ULONG dwLen; //heap object length;
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PHEAP pheap; //points to beginning of heap
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LIST list; //links all free heap blocks
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} HEAPOBJHDR, *PHEAPOBJHDR;
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struct _heap
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{
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ULONG dwSig; //heap signature
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PUCHAR pbHeapEnd; //points to end of heap block
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PHEAP pheapHead; //points to head of heap chain
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PHEAP pheapNext; //points to next heap block
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PUCHAR pbHeapTop; //points to the last free heap block
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PLIST plistFreeHeap; //points to the free heap block list
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HEAPOBJHDR Heap; //beginning of heap memory
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};
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#define SIG_HEAP 'PAEH'
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struct _ctxt
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{
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ULONG dwSig; //signature "CTXT"
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PUCHAR pbCtxtEnd; //points to end of context block
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LIST listCtxt; //links all allocated context
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LIST listQueue; //links for queuing context
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PPLIST pplistCtxtQueue; //points to queue head pointer
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PLIST plistResources; //links all owned resources
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ULONG dwfCtxt; //context flags
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PNSOBJ pnsObj; //points to current object of evaluation
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PNSOBJ pnsScope; //points to current scope
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POBJOWNER powner; //points to current object owner
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PCALL pcall; //points to current call frame
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PNESTEDCTXT pnctxt; //points to current nest ctxt frame
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ULONG dwSyncLevel; //current sync level for mutexs
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PUCHAR pbOp; //AML code pointer
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OBJDATA Result; //to hold result data
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PFNACB pfnAsyncCallBack; //async completion callback function
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POBJDATA pdataCallBack; //points to return data of eval.
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PVOID pvContext; //context data for async callback
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// #ifdef DEBUGGER
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// LARGE_INTEGER Timestamp;
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// #endif
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KTIMER Timer; //timeout timer if context is blocked
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KDPC Dpc; //DPC hook for the context
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PHEAP pheapCurrent; //current heap
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CTXTDATA CtxtData; //context data
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HEAP LocalHeap; //Local heap
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};
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#define SIG_CTXT 'TXTC'
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#define CTXTF_TIMER_PENDING 0x00000001
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#define CTXTF_TIMER_DISPATCH 0x00000002
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#define CTXTF_TIMEOUT 0x00000004
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#define CTXTF_READY 0x00000008
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#define CTXTF_RUNNING 0x00000010
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#define CTXTF_NEED_CALLBACK 0x00000020
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#define CTXTF_IN_READYQ 0x00000040
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#define CTXTF_NEST_EVAL 0x00000080
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#define CTXTF_ASYNC_EVAL 0x00000100
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typedef struct _ctxtq
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{
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ULONG dwfCtxtQ;
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PKTHREAD pkthCurrent;
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PCTXT pctxtCurrent;
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PLIST plistCtxtQ;
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ULONG dwmsTimeSliceLength;
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ULONG dwmsTimeSliceInterval;
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PFNAA pfnPauseCallback;
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PVOID PauseCBContext;
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MUTEX mutCtxtQ;
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KTIMER Timer;
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KDPC DpcStartTimeSlice;
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KDPC DpcExpireTimeSlice;
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WORK_QUEUE_ITEM WorkItem;
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} CTXTQ, *PCTXTQ;
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#define CQF_TIMESLICE_EXPIRED 0x00000001
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#define CQF_WORKITEM_SCHEDULED 0x00000002
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#define CQF_FLUSHING 0x00000004
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#define CQF_PAUSED 0x00000008
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typedef struct _syncevent
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{
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NTSTATUS rcCompleted;
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PCTXT pctxt;
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KEVENT Event;
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} SYNCEVENT, *PSYNCEVENT;
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typedef struct _restart
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{
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PCTXT pctxt;
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WORK_QUEUE_ITEM WorkItem;
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} RESTART, *PRESTART;
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#endif //ifndef _CTXT_H
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