| 1 | /* $Id: ldr.h,v 1.2 1999-10-14 01:16:49 bird Exp $
|
|---|
| 2 | *
|
|---|
| 3 | * ldr - loader header file.
|
|---|
| 4 | *
|
|---|
| 5 | * Copyright (c) 1999 knut St. osmundsen
|
|---|
| 6 | *
|
|---|
| 7 | */
|
|---|
| 8 |
|
|---|
| 9 |
|
|---|
| 10 | #ifndef _ldr_h_
|
|---|
| 11 | #define _ldr_h_
|
|---|
| 12 | #ifndef LDR_INCL_INITONLY
|
|---|
| 13 | /* state variable */
|
|---|
| 14 | extern BOOL fQAppType;
|
|---|
| 15 |
|
|---|
| 16 | /***************************************************************/
|
|---|
| 17 | /* handle state - Array of handle states. Four state per byte! */
|
|---|
| 18 | /***************************************************************/
|
|---|
| 19 | #define MAX_FILE_HANDLES 0x10000
|
|---|
| 20 |
|
|---|
| 21 | extern unsigned char achHandleStates[MAX_FILE_HANDLES/8];
|
|---|
| 22 |
|
|---|
| 23 | #define HSTATE_UNUSED 0x00 /* Handle not used (or OS/2). */
|
|---|
| 24 | #define HSTATE_OS2 0x00 /* OS/2 module filehandle. */
|
|---|
| 25 | #define HSTATE_OUR 0x01 /* Our module filehandle. */
|
|---|
| 26 | #define HSTATE_MASK 0xFE
|
|---|
| 27 | #define HSTATE_UMASK 0x01
|
|---|
| 28 |
|
|---|
| 29 | #define GetState(a) (HSTATE_UMASK & (achHandleStates[(a)/8] >> ((a)%8)))
|
|---|
| 30 | #define SetState(a,b) (achHandleStates[(a)/8] = (achHandleStates[(a)/8] & (HSTATE_MASK << ((a)%8) | HSTATE_MASK >> 8-((a)%8)) | ((b) & 0x1) << ((a)%8)))
|
|---|
| 31 |
|
|---|
| 32 |
|
|---|
| 33 | /**************/
|
|---|
| 34 | /* PE handles */
|
|---|
| 35 | /**************/
|
|---|
| 36 | typedef struct _PENode
|
|---|
| 37 | {
|
|---|
| 38 | /* linking stuff */
|
|---|
| 39 | struct _PENode *left;
|
|---|
| 40 | struct _PENode *right;
|
|---|
| 41 |
|
|---|
| 42 | /* key */
|
|---|
| 43 | SFN hFile; /* system file number or file handle if you prefer that */
|
|---|
| 44 |
|
|---|
| 45 | /* misc */
|
|---|
| 46 | PMTE pMTE; /* pointer to MTE if we got one - may be NULL */
|
|---|
| 47 |
|
|---|
| 48 | /* Pe2Lx object */
|
|---|
| 49 | Pe2Lx *pPe2Lx;
|
|---|
| 50 | } PENODE, *PPENODE;
|
|---|
| 51 |
|
|---|
| 52 | #define SIZEOF_NODE (sizeof(NODE))
|
|---|
| 53 |
|
|---|
| 54 | ULONG insertNode(PPENODE pNode);
|
|---|
| 55 | ULONG deleteNode(SFN key); /* removes from tree and freeNode */
|
|---|
| 56 | PPENODE getNodePtr(SFN key);
|
|---|
| 57 | PPENODE findNodePtr(const char *pszFilename);
|
|---|
| 58 | ULONG depthPE(void);
|
|---|
| 59 | PPENODE allocateNode(void);
|
|---|
| 60 | ULONG freeNode(PPENODE pNode); /* don't remove from tree! */
|
|---|
| 61 |
|
|---|
| 62 | /* if sequential insertion - this will give a lower tree. */
|
|---|
| 63 | /* testing shows that 3 gives best results for 27 to 134 nodes */
|
|---|
| 64 | #define ROTATION 3
|
|---|
| 65 | #define AdjustKey(a) ((USHORT)(a << 16-ROTATION) | (USHORT)(a >> ROTATION) )
|
|---|
| 66 | #define UnAdjustKey(a) ((USHORT)(a >> 16-ROTATION) | (USHORT)(a << ROTATION) )
|
|---|
| 67 |
|
|---|
| 68 | #endif
|
|---|
| 69 | /*************/
|
|---|
| 70 | /* functions */
|
|---|
| 71 | /*************/
|
|---|
| 72 | #ifdef __cplusplus
|
|---|
| 73 | extern "C" {
|
|---|
| 74 | #endif
|
|---|
| 75 |
|
|---|
| 76 | ULONG ldrInit(void);
|
|---|
| 77 |
|
|---|
| 78 | #ifdef __cplusplus
|
|---|
| 79 | }
|
|---|
| 80 | #endif
|
|---|
| 81 |
|
|---|
| 82 | #pragma pack()
|
|---|
| 83 |
|
|---|
| 84 | #endif
|
|---|
