1 files changed, 142 insertions, 0 deletions
diff --git a/private/ntos/tdi/isn/spx/h/spxmem.h b/private/ntos/tdi/isn/spx/h/spxmem.h
new file mode 100644
index 000000000..717c69a6b
--- /dev/null
+++ b/private/ntos/tdi/isn/spx/h/spxmem.h
@@ -0,0 +1,142 @@
+/*++
+
+Copyright (c) 1989-1993  Microsoft Corporation
+
+Module Name:
+
+    spxmem.h
+
+Abstract:
+
+    This module contains memory management routines.
+
+Author:
+
+    Nikhil Kamkolkar (nikhilk) 17-November-1993
+
+Environment:
+
+    Kernel mode
+
+Revision History:
+
+--*/
+
+
+#define	QWORDSIZEBLOCK(Size)	(((Size)+sizeof(LARGE_INTEGER)-1) & ~(sizeof(LARGE_INTEGER)-1))
+#define	SPX_MEMORY_SIGNATURE	*(PULONG)"SPXM"
+#define	ZEROED_MEMORY_TAG		0xF0000000
+#define	SPX_TAG					*((PULONG)"SPX ")
+
+//
+// Definitions for the block management package
+//
+typedef	UCHAR	BLKID;
+
+// Add a BLKID_xxx and an entry to atalkBlkSize for every block client
+#define	BLKID_TIMERLIST				(BLKID)0
+#define	BLKID_NDISSEND				(BLKID)1
+#define	BLKID_NDISRECV				(BLKID)2
+#define	NUM_BLKIDS					(BLKID)3
+
+typedef	struct _BLK_CHUNK
+{
+	struct _BLK_CHUNK *	bc_Next;		// Pointer to next in the link
+	SHORT				bc_NumFrees;	// Number of free blocks in the chunk
+	UCHAR				bc_Age;			// Number of invocations since the chunk free
+	BLKID				bc_BlkId;		// Id of the block
+	struct _BLK_HDR *	bc_FreeHead;	// Head of the list of free blocks
+
+#ifndef SPX_OWN_PACKETS
+	PVOID				bc_ChunkCtx;	// Used to store pool header if not own
+										// packets
+#else
+    PVOID               bc_Padding;     // Keep the header 16 bytes
+#endif
+
+	// This is followed by an array of N blks of size M such that the block header
+	// is exactly spxChunkSize[i]
+
+} BLK_CHUNK, *PBLK_CHUNK;
+
+typedef	struct _BLK_HDR
+{
+	union
+	{
+		struct _BLK_HDR	*	bh_Next;	// Valid when it is free
+		struct _BLK_CHUNK *	bh_pChunk;	// The parent chunk to which this blocks belong
+										// valid when it is allocated
+	};
+    PVOID               bh_Padding;     // Make the header 8 bytes
+} BLK_HDR, *PBLK_HDR;
+
+#define	BC_OVERHEAD				(8+8)		// LARGE_INTEGER for SpxAllocMemory() header and
+										// POOL_HEADER for ExAllocatePool() header
+
+#define	BLOCK_POOL_TIMER			1000	//	Check interval (1 sec)
+#define	MAX_BLOCK_POOL_AGE			3		// # of timer invocations before free
+
+ULONG
+spxBPAgePool(
+	IN PVOID 	Context,
+	IN BOOLEAN	TimerShuttingDown);
+
+
+#ifdef	TRACK_MEMORY_USAGE
+
+#define	SpxAllocateMemory(Size)	SpxAllocMem((Size), FILENUM | __LINE__)
+
+extern
+PVOID
+SpxAllocMem(
+    IN	ULONG   Size,
+	IN	ULONG	FileLine
+);
+
+extern
+VOID
+SpxTrackMemoryUsage(
+	IN	PVOID	pMem,
+	IN	BOOLEAN	Alloc,
+	IN	ULONG	FileLine
+);
+
+#else
+
+#define	SpxAllocateMemory(Size)	SpxAllocMem(Size)
+#define	SpxTrackMemoryUsage(pMem, Alloc, FileLine)
+
+extern
+PVOID
+SpxAllocMem(
+    IN	ULONG   Size
+);
+
+#endif	// TRACK_MEMORY_USAGE
+
+VOID
+SpxFreeMemory(
+	IN	PVOID	pBuf);
+
+#define	SpxAllocateZeroedMemory(Size)	SpxAllocateMemory((Size) | ZEROED_MEMORY_TAG)
+
+
+extern
+NTSTATUS
+SpxInitMemorySystem(
+	IN	PDEVICE		pSpxDevice);
+
+extern
+VOID
+SpxDeInitMemorySystem(
+	IN	PDEVICE		pSpxDevice);
+
+PVOID
+SpxBPAllocBlock(
+	IN	BLKID		BlockId);
+
+VOID
+SpxBPFreeBlock(
+	IN	PVOID		pBlock,
+	IN	BLKID		BlockId);
+