112 lines
1.8 KiB
C
112 lines
1.8 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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suballoc.h
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Abstract:
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This is the public include file for the suballocation
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package.
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Author:
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Dave Hastings (daveh) creation-date 25-Jan-1994
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Revision History:
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--*/
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//
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// Constants
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//
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//
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// Minimum granularity for the commit routine
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// this is done as a constant rather than a parameter
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// to make defining data structures easier
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//
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#ifdef i386
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#define COMMIT_GRANULARITY 4096
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#else
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#define COMMIT_GRANULARITY 65536
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#endif
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//
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// Types
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//
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//
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// Routine for committing a specific region of of the address
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// space. Although the return type is NTSTATUS, the only value
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// that is checked is 0 (for STATUS_SUCCESS). If STATUS_SUCCESS
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// is returned, it is assumed that the function worked. If not,
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// it is assumed that it failed. No special meaning is attached to
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// particular non-zero values.
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//
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typedef
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NTSTATUS
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(*PSACOMMITROUTINE)(
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ULONG BaseAddress,
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ULONG Size
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);
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//
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// Routine for moving memory around in the address space.
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// Note: This routine MUST correctly handle overlapping
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// source and destination
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//
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typedef
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VOID
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(*PSAMEMORYMOVEROUTINE)(
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ULONG Destination,
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ULONG Source,
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ULONG Size
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);
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//
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// Public prototypes
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//
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PVOID
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SAInitialize(
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ULONG BaseAddress,
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ULONG Size,
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PSACOMMITROUTINE CommitRoutine,
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PSACOMMITROUTINE DecommitRoutine,
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PSAMEMORYMOVEROUTINE MemoryMoveRoutine
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);
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BOOL
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SAQueryFree(
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PVOID SubAllocation,
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PULONG FreeBytes,
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PULONG LargestFreeBlock
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);
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BOOL
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SAAllocate(
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PVOID SubAllocation,
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ULONG Size,
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PULONG Address
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);
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BOOL
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SAFree(
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PVOID SubAllocation,
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ULONG Size,
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ULONG Address
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);
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BOOL
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SAReallocate(
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PVOID SubAllocation,
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ULONG OriginalSize,
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ULONG OriginalAddress,
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ULONG NewSize,
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PULONG NewAddress
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);
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