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138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/*
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File: DiskCacheExtensions.h
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Contains: Header file information for the file DiskCacheExtensions.c
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Written by: John Farmer
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Copyright: © 1990-1992 by Apple Computer, Inc., all rights reserved.
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Change History (most recent first):
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<4> 3/16/92 YK Conditionalize some lines by ÔrezÕ variable since DoubleTalk.r
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now needs to include this file. System build will not be
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affected by this change.
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<3> 1/8/92 JSM Add some comments, remove kDiskCacheFileName,
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kDiskCacheFileCreator, kDiskCacheFileType, and
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kDefaultDiskCacheFileSize which are only used by the disk cache
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builder.
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<2> 1/3/92 JSM Roll-in changes from Sakura: Add kDiskCacheFileNameResID. Add
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fMapDirty and fMapRebuildCount fields to DiskCacheMapStructure.
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Move default sizes from the cache builder project here so we can
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create a clean map. Add kMinimumDiskCacheBuffer for
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AllocateLockedBufferForCompression. Add fSquashed to
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DiskCacheEntryStructure.
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<1> 6/29/91 jlf Created file.
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*/
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#ifndef __DiskBasedCache__
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#define __DiskBasedCache__
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// Constants
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#define kUnknownDiskCacheFileVersion (-1)
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#define kCacheNotFound (-1)
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#define kDiskCacheNotFound (-1)
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#define kFontNameNotFound (-1)
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#define kShrinkFailedError (-1)
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#define kCurrentDiskCacheFileVersion (1)
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#define kMapDirty (true)
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// we get the name of the font cache file from this STR resource
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#define kDiskCacheFileNameResID -16391
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// largest size for one cache on disk
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#define kMaximumDiskCacheSize (300*1024)
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// minimum buffer that needs to be allocated when compacting disk cache
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#define kMinimumDiskCacheBufferSize (16*1024)
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// Defaults
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// max number of caches in disk cache
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#define kMaximumDiskCacheCount 128
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// size of array of font names (StringListStructure) at end of caches
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#define kFontNameListSize (5*1024)
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#ifndef rez
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// Type definitions
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typedef Integer DiskCacheIndex;
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typedef LongInteger DiskCacheOffset;
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// Structures
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typedef struct {
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Integer fReferenceCount;
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char fString[];
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} StringListEntryStructure;
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typedef struct {
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Integer fStringCount;
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StringListEntryStructure fStringList[];
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} StringListStructure;
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typedef struct {
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Integer fFontNameIndex;
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Integer fPointSize;
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Integer fStyle;
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Fixed fHorizontalScale;
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Fixed fVerticalScale;
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Fixed fSkewTransform;
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Boolean fSquashed;
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DiskCacheOffset fLogicalOffset;
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DiskCacheOffset fLogicalSize;
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DiskCacheIndex fPreviousOffsetIndex;
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DiskCacheIndex fNextOffsetIndex;
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DiskCacheIndex fPreviousDateIndex;
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DiskCacheIndex fNextDateIndex;
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Boolean fCacheIsLocked;
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Boolean fCacheIsMaximumSize;
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Boolean fCacheIsFree;
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} DiskCacheEntryStructure, *DiskCacheEntryStructurePointer;
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typedef struct {
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Integer fFileVersion;
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Integer fFileRefNum;
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Boolean fMapDirty;
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LongInteger fMapRebuildCount;
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Boolean fFontCacheIsOn;
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DiskCacheIndex fFirstOffsetIndex;
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DiskCacheIndex fLastOffsetIndex;
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DiskCacheIndex fFirstDateIndex;
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DiskCacheIndex fLastDateIndex;
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DiskCacheOffset fFontNameListOffset;
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DiskCacheOffset fDiskCacheMapSize;
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DiskCacheIndex fMaximumDiskCacheCount;
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DiskCacheIndex fDiskCacheCount;
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DiskCacheEntryStructure fDiskCache[];
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// StringList data follows array of disk caches
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} DiskCacheMapStructure, *DiskCacheMapStructurePointer, **DiskCacheMapStructureHandle;
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#endif rez
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#endif __DiskBasedCache__
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