75 lines
2.2 KiB
C
Executable File
75 lines
2.2 KiB
C
Executable File
/* o4opt.h (c)Copyright Sequiter Software Inc., 1990-1995. All rights reserved. */
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/* these defines must be here even if no optimization for documentation purposes */
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#define OPT4AVAIL -1
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#define OPT4NONE 0
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#define OPT4DBF 1
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#define OPT4INDEX 2
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#define OPT4OTHER 3
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#ifndef S4OFF_OPTIMIZE
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#define OPT4DBF_LO_MIN_LINK .05
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#define OPT4DBF_LO_MAX_TIME .25
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#define OPT4DBF_LO_MIN_TIME .25
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#define OPT4DBF_HI_MIN_LINK .1
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#define OPT4DBF_HI_MAX_TIME 1.0
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#define OPT4DBF_HI_MIN_TIME 1.0
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#define OPT4INDEX_LO_MIN_LINK .05
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#define OPT4INDEX_LO_MAX_TIME .25
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#define OPT4INDEX_LO_MIN_TIME .25
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#define OPT4INDEX_HI_MIN_LINK .15
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#define OPT4INDEX_HI_MAX_TIME 2.0
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#define OPT4INDEX_HI_MIN_TIME 2.0
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#define OPT4OTHER_MIN_LINK .05
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#define OPT4OTHER_MAX_TIME .1
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#define OPT4OTHER_MIN_TIME .1
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/* OPT4CHECK_RATE must be a minimum of 5 in order to optimize correctly */
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#define OPT4CHECK_RATE 15
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/* factor of 2 that estimates the hash distribution, #slots = between #blocks * OPT4BLOCK_DENSITY and #blocks * OPT4BLOCK_DENSITY * 2 */
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#define OPT4BLOCK_DENSITY 2L
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/* this structure must match OPT4BLOCK with opt4=file followed by pos=pos */
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typedef struct
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{
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FILE4 S4PTR *file ;
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long pos ;
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} OPT4CMP ;
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#ifdef __cplusplus
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extern "C" {
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#endif
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S4EXPORT int S4FUNCTION c4calcType( unsigned long ) ;
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int d4updatePrio( CODE4 * ) ;
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void file4setWriteOpt( FILE4 *, int ) ;
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#ifdef S4ADVANCE_READ
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void opt4fileAdvanceRead( FILE4 *, long, unsigned ) ;
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#endif
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int opt4blockClear( OPT4BLOCK * ) ;
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int opt4blockRemove( OPT4 *, OPT4BLOCK *, int ) ;
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int opt4fileDelete( FILE4 *, long, long ) ;
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int opt4fileFlushList( OPT4 *, FILE4 *, LIST4 *, int ) ;
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/*long opt4fileHash( OPT4 *, FILE4 *, unsigned long ) ; */
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#define opt4fileHash( opt, file, pos ) ((long)( (( (file)->hashInit + (pos) ) >> (opt)->blockPower ) & (opt)->mask ))
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void opt4blockLruTop( OPT4BLOCK * ) ;
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unsigned opt4fileRead( FILE4 *, long, void *, unsigned ) ;
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OPT4BLOCK *opt4fileReturnBlock( FILE4 *, long, long ) ;
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int opt4fileWrite( FILE4 *, long, unsigned, const void *, char ) ;
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int opt4fileFlush( FILE4 *, const int ) ;
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int opt4flushAll( OPT4 *, char ) ;
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int opt4flushWriteBuffer( OPT4 * ) ;
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#ifdef __cplusplus
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}
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#endif
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#endif /* S4OFF_OPTIMIZE */
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