mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
469 lines
15 KiB
469 lines
15 KiB
/*
|
|
* heap.h - structures and equates for the Windows 32-bit heap
|
|
*
|
|
* Origin: Chicago
|
|
*
|
|
* Change history:
|
|
*
|
|
* Date Who Description
|
|
* --------- --------- -------------------------------------------------
|
|
* 1991 BrianSm Created
|
|
*/
|
|
|
|
#ifdef DEBUG
|
|
#define HPDEBUG 1
|
|
#endif
|
|
#ifdef PM386
|
|
#define WIN32
|
|
#endif
|
|
|
|
#define HPNOTTRUSTED 1 /* enable parameter checking */
|
|
|
|
/***LT busyblock_s - busy heap block header structure
|
|
*
|
|
* This structure is stored at the head of every busy (not free) heap
|
|
* block.
|
|
*
|
|
* The bh_size field is in bytes and includes the size of the
|
|
* heap header and any slop at the end of the block that might have
|
|
* been included because of the heap granularity, or to keep us
|
|
* from leaving a block too small to hold a free heap header.
|
|
*
|
|
* bh_size is also used as a forward link to the next heap block.
|
|
*
|
|
* The low two bits of the bh_size field are used to hold flags
|
|
* (BP_FREE must be clear and HP_PREVFREE is optionally set).
|
|
*/
|
|
#ifndef HPDEBUG
|
|
struct busyheap_s {
|
|
unsigned long bh_size; /* block size + flags in low 2 bits */
|
|
};
|
|
#else
|
|
struct busyheap_s {
|
|
unsigned long bh_size; /* block size + flags in low 2 bits */
|
|
unsigned long bh_eip; /* EIP of allocator */
|
|
unsigned short bh_tid; /* thread id of allocator */
|
|
unsigned short bh_signature; /* signature (should be BH_SIGNATURE)*/
|
|
unsigned long bh_sum; /* checksum of this structure */
|
|
};
|
|
#endif
|
|
|
|
/*XLATOFF*/
|
|
#define BH_SIGNATURE 0x4842 /* busy heap block signature (BH) */
|
|
/*XLATON*/
|
|
|
|
#define BH_CDWSUM 3 /* count of dwords to sum in struct */
|
|
|
|
|
|
/***LT freeblock_s - free heap block header structure
|
|
*
|
|
* This structure is stored at the head of every free block on the
|
|
* heap. In the last dword of every free heap block is a pointer
|
|
* the this structure.
|
|
*
|
|
* The fh_size field is in bytes and includes the size of the
|
|
* heap header and any slop at the end of the block that might have
|
|
* been included because of the heap granularity, or to keep us
|
|
* from leaving a block too small to hold a free heap header.
|
|
*
|
|
* fh_size is also used as a forward link to the next heap block.
|
|
*
|
|
* The low two bits of the fh_size field are used to hold flags
|
|
* (HP_FREE must be set and HP_PREVFREE must be clear).
|
|
*/
|
|
#ifndef HPDEBUG
|
|
struct freeheap_s {
|
|
unsigned long fh_size; /* block size + flags in low 2 bits */
|
|
struct freeheap_s *fh_flink; /* forward link to next free block */
|
|
struct freeheap_s *fh_blink; /* back link to previous free block */
|
|
};
|
|
#else
|
|
struct freeheap_s {
|
|
unsigned long fh_size; /* block size + flags in low 2 bits */
|
|
struct freeheap_s *fh_flink; /* forward link to next free block */
|
|
unsigned short fh_pad; /* unused */
|
|
unsigned short fh_signature;/* signature (should be FH_SIGNATURE)*/
|
|
struct freeheap_s *fh_blink; /* back link to previous free block */
|
|
unsigned long fh_sum; /* checksum of this structure */
|
|
};
|
|
#endif
|
|
|
|
/*XLATOFF*/
|
|
#define FH_SIGNATURE 0x4846 /* free heap block signature (FH) */
|
|
/*XLATON*/
|
|
|
|
#define FH_CDWSUM 4 /* count of dwords to sum in struct */
|
|
|
|
/*
|
|
* Equates common to all heap blocks.
|
|
*
|
|
* HP_FREE and HP_PREVFREE (HP_FLAGS) are stored in the low two
|
|
* bits of the fh_ and bh_size field.
|
|
* The signature is stored in the high three bits of the size.
|
|
*/
|
|
#define HP_FREE 0x00000001 /* block is free */
|
|
#define HP_PREVFREE 0x00000002 /* previous block is free */
|
|
#define HP_FLAGS 0x00000003 /* mask for all the flags */
|
|
#define HP_SIZE 0x0ffffffc /* mask for clearing flags */
|
|
#define HP_SIGBITS 0xf0000000 /* bits used for signature */
|
|
#define HP_SIGNATURE 0xa0000000 /* valid value of signature */
|
|
|
|
/*
|
|
* Misc heap equates
|
|
*/
|
|
#define hpGRANULARITY 4 /* granularity for heap allocations */
|
|
#define hpGRANMASK (hpGRANULARITY - 1) /* for rounding */
|
|
/*XLATOFF*/
|
|
#define hpMINSIZE (sizeof(struct freeheap_s)+sizeof(struct freeheap_s *))
|
|
/* min block size */
|
|
|
|
#define hpMAXALLOC (HP_SIZE - 100) /* biggest allocatable heap block */
|
|
|
|
/* overhead for a new heap segment (header plus end sentinel) */
|
|
#define hpSEGOVERHEAD (sizeof(struct busyheap_s) + sizeof(struct heapseg_s))
|
|
|
|
/* default reserved size of new segments added to growable heaps */
|
|
#define hpCBRESERVE (4*1024*1024)
|
|
|
|
|
|
/*XLATON*/
|
|
|
|
|
|
/*
|
|
* Exported flags for heap calls
|
|
*/
|
|
#ifdef WIN32
|
|
#define HP_ZEROINIT 0x40 /* zero initialize block on HP(Re)Alloc */
|
|
#define HP_MOVEABLE 0x02 /* block can be moved (HP(Re)Alloc) */
|
|
#define HP_NOCOPY 0x20 /* don't copy data on HPReAlloc */
|
|
#define HP_NOSERIALIZE 0x01 /* don't serialize heap access */
|
|
#define HP_EXCEPT 0x04 /* generate exceptions on error */
|
|
#ifdef HPMEASURE
|
|
#define HP_MEASURE 0x80 /* enable heap measurement */
|
|
#endif
|
|
|
|
#else
|
|
|
|
#define HP_ZEROINIT 0x01 /* zero initialize block on HP(Re)Alloc */
|
|
#define HP_NOSERIALIZE 0x08 /* don't serialize heap access (HPInit) */
|
|
#define HP_NOCOPY 0x04 /* don't copy data on HPReAlloc */
|
|
#define HP_MOVEABLE 0x10 /* allow moving on HPReAlloc */
|
|
#define HP_LOCKED 0x80 /* put heap in locked memory (HPInit) */
|
|
#endif
|
|
#define HP_FIXED 0x00 /* block is at a fixed address (HPAlloc) */
|
|
#define HP_GROWABLE 0x40 /* heap can grow beyond cbreserve (HPInit) */
|
|
/*
|
|
* Note that flags above 0x80 will not be stored into the heap header in
|
|
* HPInit calls because the flags field in the header is only a byte
|
|
*/
|
|
#define HP_INITSEGMENT 0x100 /* just initialize a heap segment (HPInit) */
|
|
#define HP_DECOMMIT 0x200 /* decommit pages in free block (hpFreeSub) */
|
|
#define HP_GROWUP 0x400 /* waste last page of heap (HPInit) */
|
|
|
|
/*XLATOFF*/
|
|
|
|
/***LP hpSize - pull size field from heap header
|
|
*
|
|
* This routine depends on the size field being the first
|
|
* dword in the header.
|
|
*
|
|
* ENTRY: ph - pointer to heap header
|
|
* EXIT: count of bytes in block (counting header).
|
|
*/
|
|
#define hpSize(ph) (*((unsigned long *)(ph)) & HP_SIZE)
|
|
|
|
/***LP hpSetSize - set the size parameter in a heap header
|
|
*
|
|
* This routine depends on the size field being the first
|
|
* dword in the header.
|
|
*
|
|
* ENTRY: ph - pointer to busy heap header
|
|
* cb - count of bytes (should be rounded using hpRoundUp)
|
|
* EXIT: size is set in heap header
|
|
*/
|
|
#define hpSetSize(ph, cb) (((struct busyheap_s *)(ph))->bh_size = \
|
|
((((struct busyheap_s *)(ph))->bh_size & ~HP_SIZE) | (cb)))
|
|
|
|
/* the compiler used to do a better version with this macro than the above,
|
|
* but not any more
|
|
#define hpSetSize2(ph, cb) *(unsigned long *)(ph) &= ~HP_SIZE; \
|
|
*(unsigned long *)(ph) |= (cb);
|
|
*/
|
|
|
|
/***LP hpSetBusySize - set the entire bh_size dword for a busy block
|
|
*
|
|
* This macro will set the bh_size field of the given heap header
|
|
* to the given size as well as setting the HP_SIGNATURE and clearing
|
|
* any HP_FREE or HP_PREVFREE bits.
|
|
*
|
|
* ENTRY: ph - pointer to busy heap header
|
|
* cb - count of bytes (should be rounded using hpRoundUp)
|
|
* EXIT: bh_size field is initialized
|
|
*/
|
|
#define hpSetBusySize(ph, cb) ((ph)->bh_size = ((cb) | HP_SIGNATURE))
|
|
|
|
|
|
/***LP hpSetFreeSize - set the entire fh_size dword for a free block
|
|
*
|
|
* This macro will set the fh_size field of the given heap header
|
|
* to the given size as well as setting the HP_SIGNATURE and HP_FREE
|
|
* and clearing HP_PREVFREE.
|
|
*
|
|
* ENTRY: ph - pointer to free heap header
|
|
* cb - count of bytes (should be rounded using hpRoundUp)
|
|
* EXIT: bh_size field is initialized
|
|
*/
|
|
#define hpSetFreeSize(ph, cb) ((ph)->fh_size = ((cb) | HP_SIGNATURE | HP_FREE))
|
|
|
|
|
|
/***LP hpIsBusySignatureValid - check a busy heap block's signature
|
|
*
|
|
* This macro checks the tiny signature (HP_SIGNATURE) in the bh_size
|
|
* field to see if it is set properly and makes sure that the HP_FREE
|
|
* bit is clear.
|
|
*
|
|
* ENTRY: ph - pointer to a busy heap header
|
|
* EXIT: TRUE if signature is ok, else FALSE
|
|
*/
|
|
#define hpIsBusySignatureValid(ph) \
|
|
(((ph)->bh_size & (HP_SIGBITS | HP_FREE)) == HP_SIGNATURE)
|
|
|
|
|
|
/***LP hpIsFreeSignatureValid - check a free heap block's signature
|
|
*
|
|
* This macro checks the tiny signature (HP_SIGNATURE) in the fh_size
|
|
* field to see if it is set properly and makes sure that the HP_FREE
|
|
* bit is also set and HP_PREVFREE is clear.
|
|
*
|
|
* ENTRY: ph - pointer to a free heap header
|
|
* EXIT: TRUE if signature is ok, else FALSE
|
|
*/
|
|
#define hpIsFreeSignatureValid(ph) \
|
|
(((ph)->fh_size & (HP_SIGBITS | HP_FREE | HP_PREVFREE)) == \
|
|
(HP_SIGNATURE | HP_FREE))
|
|
|
|
|
|
/***LP hpRoundUp - round up byte count to appropriate heap block size
|
|
*
|
|
* Heap blocks have a minimum size of hpMINSIZE and hpGRANULARITY
|
|
* granularity. This macro also adds on size for the heap header.
|
|
*
|
|
* ENTRY: cb - count of bytes
|
|
* EXIT: count rounded up to hpGANULARITY boundary
|
|
*/
|
|
#define hpRoundUp(cb) \
|
|
max(hpMINSIZE, \
|
|
(((cb) + sizeof(struct busyheap_s) + hpGRANMASK) & ~hpGRANMASK))
|
|
|
|
|
|
/*XLATON*/
|
|
|
|
/***LK freelist_s - heap free list head
|
|
*/
|
|
struct freelist_s {
|
|
unsigned long fl_cbmax; /* max size block in this free list */
|
|
struct freeheap_s fl_header; /* pseudo heap header as list head */
|
|
};
|
|
#define hpFREELISTHEADS 4 /* number of free list heads in heapinfo_s */
|
|
|
|
/***LK heapinfo_s - per-heap information (stored at start of heap)
|
|
*
|
|
*/
|
|
struct heapinfo_s {
|
|
|
|
/* These first three fields must match the fields of heapseg_s */
|
|
unsigned long hi_cbreserve; /* bytes reserved for heap */
|
|
struct heapseg_s *hi_psegnext; /* pointer to next heap segment*/
|
|
|
|
struct freelist_s hi_freelist[hpFREELISTHEADS]; /* free list heads */
|
|
#ifdef WIN32
|
|
struct heapinfo_s *hi_procnext; /* linked list of process heaps */
|
|
CRST *hi_pcritsec; /* pointer to serialization obj*/
|
|
CRST hi_critsec; /* serialize access to heap */
|
|
#ifdef HPDEBUG
|
|
unsigned char hi_matchring0[(76-sizeof(CRST))]; /* pad so .mh command works */
|
|
#endif
|
|
#else
|
|
struct _MTX *hi_pcritsec; /* pointer to serialization obj*/
|
|
struct _MTX hi_critsec; /* serialize access to heap */
|
|
#endif
|
|
#ifdef HPDEBUG
|
|
unsigned long hi_thread; /* thread pointer of thread
|
|
* inside heap code */
|
|
unsigned long hi_eip; /* EIP of heap's creator */
|
|
unsigned long hi_sum; /* checksum of this structure*/
|
|
unsigned short hi_tid; /* thread ID of heap's creator*/
|
|
unsigned short hi_pad1; /* unused */
|
|
#endif
|
|
unsigned char hi_flags; /* HP_SERIALIZE, HP_LOCKED */
|
|
unsigned char hi_pad2; /* unused */
|
|
unsigned short hi_signature; /* should be HI_SIGNATURE */
|
|
};
|
|
|
|
/*
|
|
* Heap Measurement functions
|
|
*/
|
|
#define HPMEASURE_FREE 0x8000000L
|
|
|
|
#define SAMPLE_CACHE_SIZE 1024
|
|
|
|
struct measure_s {
|
|
char szFile[260];
|
|
unsigned iCur;
|
|
unsigned uSamples[SAMPLE_CACHE_SIZE];
|
|
};
|
|
|
|
/*XLATOFF*/
|
|
#define HI_SIGNATURE 0x4948 /* heapinfo_s signature (HI) */
|
|
/*XLATON*/
|
|
|
|
#define HI_CDWSUM 1 /* count of dwords to sum */
|
|
|
|
typedef struct heapinfo_s *HHEAP;
|
|
|
|
|
|
/***LK heapseg_s - per-heap segment structure
|
|
*
|
|
* Growable heaps can have multiple discontiguous sections of memory
|
|
* allocated to them. Each is headed by one of these structures. The
|
|
* first segment is special, in that it has a full heapinfo_s structure,
|
|
* but the first fields of heapinfo_s match heapseg_s, so it can be
|
|
* treated as just another segment when convenient.
|
|
*/
|
|
struct heapseg_s {
|
|
unsigned long hs_cbreserve; /* bytes reserved for this segment */
|
|
struct heapseg_s *hs_psegnext; /* pointer to next heap segment*/
|
|
};
|
|
/* XLATOFF */
|
|
|
|
/* smallest possible heap */
|
|
#define hpMINHEAPSIZE (sizeof(struct heapinfo_s) + hpMINSIZE + \
|
|
sizeof(struct busyheap_s))
|
|
|
|
/***LP hpRemove - remove item from free list
|
|
*
|
|
* ENTRY: pfh - pointer to free heap block to remove from list
|
|
* EXIT: none
|
|
*/
|
|
#define hpRemoveNoSum(pfh) \
|
|
(pfh)->fh_flink->fh_blink = (pfh)->fh_blink; \
|
|
(pfh)->fh_blink->fh_flink = (pfh)->fh_flink;
|
|
|
|
#ifdef HPDEBUG
|
|
#define hpRemove(pfh) hpRemoveNoSum(pfh); \
|
|
(pfh)->fh_flink->fh_sum = \
|
|
hpSum((pfh)->fh_flink, FH_CDWSUM); \
|
|
(pfh)->fh_blink->fh_sum = \
|
|
hpSum((pfh)->fh_blink, FH_CDWSUM);
|
|
#else
|
|
#define hpRemove(pfh) hpRemoveNoSum(pfh)
|
|
#endif
|
|
|
|
/***LP hpInsert - insert item onto the free list
|
|
*
|
|
* ENTRY: pfh - free heap block to insert onto the list
|
|
* pfhprev - insert pfh after this item
|
|
* EXIT: none
|
|
*/
|
|
#define hpInsertNoSum(pfh, pfhprev) \
|
|
(pfh)->fh_flink = (pfhprev)->fh_flink; \
|
|
(pfh)->fh_flink->fh_blink = (pfh); \
|
|
(pfh)->fh_blink = (pfhprev); \
|
|
(pfhprev)->fh_flink = (pfh)
|
|
|
|
#ifdef HPDEBUG
|
|
#define hpInsert(pfh, pfhprev) hpInsertNoSum(pfh, pfhprev); \
|
|
(pfh)->fh_flink->fh_sum = \
|
|
hpSum((pfh)->fh_flink, FH_CDWSUM); \
|
|
(pfhprev)->fh_sum = \
|
|
hpSum((pfhprev), FH_CDWSUM)
|
|
#else
|
|
#define hpInsert(pfh, pfhprev) hpInsertNoSum(pfh, pfhprev)
|
|
#endif
|
|
|
|
#ifdef WIN32
|
|
#define INTERNAL
|
|
#endif
|
|
|
|
/*
|
|
* critical section macros to be used by all internal heap functions
|
|
*/
|
|
#ifndef WIN32
|
|
#define hpEnterCriticalSection(hheap) mmEnterMutex(hheap->hi_pcritsec)
|
|
#define hpLeaveCriticalSection(hheap) mmLeaveMutex(hheap->hi_pcritsec)
|
|
#define hpInitializeCriticalSection(hheap) \
|
|
hheap->hi_pcritsec = &(hheap->hi_critsec); \
|
|
mmInitMutex(hheap->hi_pcritsec)
|
|
#else
|
|
#define hpEnterCriticalSection(hheap) EnterCrst(hheap->hi_pcritsec)
|
|
#define hpLeaveCriticalSection(hheap) LeaveCrst(hheap->hi_pcritsec)
|
|
//BUGBUG: removed special case hheapKernel code
|
|
#define hpInitializeCriticalSection(hheap) \
|
|
{ \
|
|
hheap->hi_pcritsec = &(hheap->hi_critsec); \
|
|
InitCrst(hheap->hi_pcritsec); \
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Exported heap functions
|
|
*/
|
|
extern HHEAP INTERNAL HPInit(void *hheap, void *pmem, unsigned long cbreserve,
|
|
unsigned long flags);
|
|
extern void * INTERNAL HPAlloc(HHEAP hheap, unsigned long cb,
|
|
unsigned long flags);
|
|
|
|
extern void * INTERNAL HPReAlloc(HHEAP hheap, void *pblock, unsigned long cb,
|
|
unsigned long flags);
|
|
#ifndef WIN32
|
|
extern unsigned INTERNAL HPFree(HHEAP hheap, void *lpMem);
|
|
extern unsigned INTERNAL HPSize(HHEAP hheap, void *lpMem);
|
|
extern HHEAP INTERNAL HPClone(struct heapinfo_s *hheap, struct heapinfo_s *pmem);
|
|
#endif
|
|
|
|
|
|
/*
|
|
* Local heap functions
|
|
*/
|
|
extern void INTERNAL hpFreeSub(HHEAP hheap, void *pblock, unsigned cb,
|
|
unsigned flags);
|
|
extern unsigned INTERNAL hpCommit(unsigned page, int npages, unsigned flags);
|
|
extern unsigned INTERNAL hpCarve(HHEAP hheap, struct freeheap_s *pfh,
|
|
unsigned cb, unsigned flags);
|
|
#ifdef WIN32
|
|
extern unsigned INTERNAL hpTakeSem(HHEAP hheap, void *pbh, unsigned flags);
|
|
extern void INTERNAL hpClearSem(HHEAP hheap, unsigned flags);
|
|
#else
|
|
extern unsigned INTERNAL hpTakeSem2(HHEAP hheap, void *pbh);
|
|
extern void INTERNAL hpClearSem2(HHEAP hheap);
|
|
#endif
|
|
|
|
/*
|
|
* Debug functions
|
|
*/
|
|
#ifdef HPDEBUG
|
|
|
|
extern unsigned INTERNAL hpWalk(HHEAP hheap);
|
|
extern char INTERNAL hpfWalk;
|
|
extern char INTERNAL hpfTrashStop;
|
|
extern char INTERNAL hpfParanoid;
|
|
extern char mmfErrorStop;
|
|
extern unsigned long INTERNAL hpGetAllocator(void);
|
|
extern unsigned long INTERNAL hpSum(PVOID p, unsigned long cdw);
|
|
|
|
#else
|
|
|
|
#define hpWalk(hheap) 1
|
|
|
|
#endif
|
|
|
|
#ifdef WIN32
|
|
#ifdef HPDEBUG
|
|
#define DebugStop() { _asm int 3 }
|
|
#define mmError(rc, string) vDebugOut(mmfErrorStop ? DEB_ERR : DEB_WARN, string);SetError(rc)
|
|
#define mmAssert(exp, psz) if (!(exp)) vDebugOut(DEB_ERR, psz)
|
|
#else
|
|
#define mmError(rc, string) SetError(rc)
|
|
#define mmAssert(exp, psz)
|
|
#endif
|
|
#endif
|