259 lines
10 KiB
C
259 lines
10 KiB
C
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/* r4relate.h (c)Copyright Sequiter Software Inc., 1992-1994. All rights reserved. */
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#define relate4filter_record 101
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#define relate4do_remove 102
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#define relate4skipped 104
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#define relate4blank 105
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#define relate4skip_rec 106
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#define relate4terminate 107
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#define relate4exact 108
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#define relate4scan 109
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#define relate4approx 110
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#define relate4sort_skip 120
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#define relate4sort_done 121
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struct DATA4LIST_ST ;
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struct RELATE4_ST ;
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struct RELATION4_ST ;
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typedef struct
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{
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struct DATA4LIST_ST *data_list ;
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TAG4 S4PTR *tag ; /* The tag whose expression could replace the sub-expression */
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} E4INFO_REPORT ;
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typedef struct
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{
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EXPR4 S4PTR *expr ;
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E4INFO_REPORT S4PTR *info_report ; /* One per E4INFO entry */
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struct RELATION4_ST S4PTR *relation ;
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CODE4 S4PTR *code_base ;
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char S4PTR *buf ;
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unsigned buf_pos, buf_len ;
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} L4LOGICAL ;
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typedef struct DATA4LIST_ST
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{
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struct RELATE4_ST S4PTR * S4PTR *pointers ;
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unsigned mem_allocated ;
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int pointers_tot ;
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int pointers_used ;
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} DATA4LIST ;
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typedef struct RELATE4_ST
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{
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LINK4 link ;
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EXPR4 S4PTR *master_expr ; /* master expression */
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int match_len ; /* Number of characters to match */
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TAG4 S4PTR *data_tag ; /* Null means record # lookup */
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int relation_type, sort_type ; /* relate4exact, relate4scan, relate4approx */
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/* Top data file is considered to be a Scan */
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int error_action ; /* relate4blank, relate4skip_rec, relate4terminate */
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char S4PTR *scan_value ; /* Allocated Memory */
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int scan_value_len ;
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int is_read ; /* 0 - Neither this data file nor its slaves read */
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/* 1 - This data file read, slaves unknown */
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DATA4 S4PTR *data ; /* This is the master for 'slaves' (if any) and */
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/* possibly the slave for another data file. */
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struct RELATE4_ST S4PTR *master ;
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LIST4 slaves ;
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F4FLAG set ; /* Specify records for bitmap optimizable sub-expression. */
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struct RELATION4_ST S4PTR *relation ;
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CODE4 S4PTR *code_base ;
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char S4PTR *old_record;
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#ifdef S4WINDOWS
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HWND hWnd;
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int total_children;
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#endif
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} RELATE4 ;
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typedef struct
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{
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LINK4 link ;
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RELATE4 S4PTR *ptr ;
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} RELATE4LIST ;
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typedef struct
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{
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LINK4 link ;
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DATA4 S4PTR *data ;
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RELATE4 S4PTR *relate ;
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} R4DATA_LIST ;
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typedef struct RELATION4_ST
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{
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RELATE4 relate ;
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LIST4 sort_data_list ; /* data list for the sort */
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LIST4 relate_list ; /* A list of scan Relate pointers; */
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/* Includes the top level Relate */
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char S4PTR *expr_source ;
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char locked ;
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SORT4 sort ;
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char S4PTR *sort_source ;
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char S4PTR *other_data, bitmaps_freed, sort_eof_flag, sort_done_flag ;
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int sort_other_len ;
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long sort_rec_to, sort_rec_on, sort_file_pos, sort_rec_count ;
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FILE4 sorted_file ;
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char sorted_file_name[13] ;
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L4LOGICAL log ;
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int is_initialized ;
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char in_sort ; /* are we skipping for sorting purposes? */
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char skip_backwards ; /* is backwards skipping enabled? */
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MEM4 S4PTR *relate_memory ;
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MEM4 S4PTR *relate_list_memory ;
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MEM4 S4PTR *data_list_memory ;
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} RELATION4 ;
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#define BITMAP4LEAF 0x40
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#define BITMAP4AND 0x20
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typedef struct CONST4_st
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{
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LINK4 link ;
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int offset ;
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int len ;
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} CONST4 ;
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typedef struct BITMAP4_st
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{
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LINK4 link ;
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LINK4 eval ;
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/* flags */
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char branch ;
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char and_or ; /* 1 = and, 2 = or, 0 means neither */
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char evaluated ;
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char finished;
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char save_count ;
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char flip_base ;
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char pure_map ;
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char no_match ; /* no records match an and case */
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L4LOGICAL S4PTR *log ;
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RELATE4 S4PTR *relate ;
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struct BITMAP4_st S4PTR *base ;
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int type ; /* r4num, etc. */
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/* Branch only */
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LIST4 children ;
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TAG4 S4PTR *tag ;
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CONST4 lt ;
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CONST4 le ;
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CONST4 gt ;
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CONST4 ge ;
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CONST4 eq ;
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LIST4 ne ;
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} BITMAP4 ;
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#ifdef __cplusplus
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extern "C" {
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#endif
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S4EXPORT int S4FUNCTION bitmap4evaluate( L4LOGICAL S4PTR *, int ) ;
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S4EXPORT BITMAP4 S4PTR * S4FUNCTION bitmap4redistribute( BITMAP4 S4PTR *, BITMAP4 S4PTR *, char ) ;
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S4EXPORT BITMAP4 S4PTR * S4FUNCTION bitmap4redistribute_leaf( BITMAP4 S4PTR *, BITMAP4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT BITMAP4 S4PTR * S4FUNCTION bitmap4redistribute_branch( BITMAP4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT BITMAP4 S4PTR * S4FUNCTION bitmap4create( L4LOGICAL S4PTR *, RELATE4 S4PTR *, char, char ) ;
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S4EXPORT void S4FUNCTION bitmap4destroy( BITMAP4 S4PTR * ) ;
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S4EXPORT BITMAP4 S4PTR * S4FUNCTION bitmap4combine_leafs( BITMAP4 S4PTR *, BITMAP4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT long S4FUNCTION bitmap4seek( BITMAP4 S4PTR *, CONST4 S4PTR *, char, long, int ) ;
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S4EXPORT void S4FUNCTION bitmap4copy( BITMAP4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT void S4PTR * S4FUNCTION const4return( L4LOGICAL S4PTR *, CONST4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION const4mem_alloc( L4LOGICAL S4PTR *, unsigned ) ;
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S4EXPORT int S4FUNCTION const4duplicate( CONST4 S4PTR *, CONST4 S4PTR *, L4LOGICAL S4PTR * ) ;
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S4EXPORT int S4FUNCTION const4get( CONST4 S4PTR *, BITMAP4 S4PTR *, L4LOGICAL S4PTR *, int ) ;
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S4EXPORT int S4FUNCTION const4less( CONST4 S4PTR *, CONST4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION const4eq( CONST4 S4PTR *, CONST4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION const4less_eq( CONST4 S4PTR *, CONST4 S4PTR *, BITMAP4 S4PTR * ) ;
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S4EXPORT void S4FUNCTION const4add_ne( BITMAP4 S4PTR *, CONST4 S4PTR * ) ;
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S4EXPORT void S4FUNCTION const4delete_ne( LIST4 S4PTR *, CONST4 S4PTR * ) ;
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/* functions used to build the sort data list */
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S4EXPORT int S4FUNCTION r4data_list_add( LIST4 S4PTR *, DATA4 S4PTR *, RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION r4data_list_find( LIST4 S4PTR *, RELATE4 S4PTR * ) ;
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S4EXPORT void S4FUNCTION r4data_list_free( LIST4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION r4data_list_build( LIST4 S4PTR *, RELATE4 S4PTR *, EXPR4 S4PTR *, int ) ;
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S4EXPORT int S4FUNCTION e4is_constant( E4INFO S4PTR * ) ;
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S4EXPORT int S4FUNCTION e4is_tag( E4INFO_REPORT S4PTR *, EXPR4 S4PTR *, E4INFO S4PTR *, DATA4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION log4add_to_list( L4LOGICAL S4PTR *, E4INFO S4PTR *, DATA4LIST S4PTR * ) ;
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/*static int log4build_database_lists( L4LOGICAL S4PTR * ) ;*/
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S4EXPORT int S4FUNCTION log4true( L4LOGICAL S4PTR * ) ;
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S4EXPORT int S4FUNCTION log4bitmap_do( L4LOGICAL S4PTR * ) ; /* Do everything regarding bitmaps */
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S4EXPORT int S4FUNCTION log4determine_evaluation_order( L4LOGICAL S4PTR * ) ;
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S4EXPORT int S4FUNCTION log4swap_entries( L4LOGICAL S4PTR *, int, int ) ;
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S4EXPORT int S4FUNCTION data_list4add( DATA4LIST S4PTR *, CODE4 S4PTR *, RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION data_list4expand_from_db_tree( DATA4LIST S4PTR *, CODE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION data_list4is_in( DATA4LIST S4PTR *, RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION data_list4read_records( DATA4LIST S4PTR * ) ;
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S4EXPORT void S4FUNCTION data_list4remove( DATA4LIST S4PTR *, DATA4LIST S4PTR * ) ;
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S4EXPORT void S4FUNCTION relate4init_relate( RELATE4 S4PTR *, RELATION4 S4PTR *, DATA4 S4PTR *, CODE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4blank_set( RELATE4 S4PTR *, char ) ; /* Recursive Blank */
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S4EXPORT int S4FUNCTION relate4build_scan_list( RELATE4 S4PTR *, RELATION4 S4PTR * ) ;
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S4EXPORT RELATE4 S4PTR * S4FUNCTION relate4create_slave( RELATE4 S4PTR *, DATA4 S4PTR *,
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char S4PTR *, TAG4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4free_relate( RELATE4 S4PTR *, int ) ;
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S4EXPORT void S4FUNCTION relate4changed( RELATE4 S4PTR * ) ; /* Slave has been added or freed */
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S4EXPORT RELATE4 S4PTR * S4FUNCTION relate4lookup_relate( RELATE4 S4PTR *, DATA4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4lookup( RELATE4 S4PTR *, char ) ; /* Lookup the record */
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S4EXPORT int S4FUNCTION relate4match_len( RELATE4 S4PTR *, int ) ;
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S4EXPORT int S4FUNCTION relate4next_record_in_scan( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4prev_record_in_scan( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4read_in( RELATE4 S4PTR * ) ; /* Read a record for this specific data file. */
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/* Assume Master has already been read ! */
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S4EXPORT int S4FUNCTION relate4read_rest( RELATE4 S4PTR *, char ) ;
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S4EXPORT void S4FUNCTION relate4set_not_read( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4sort( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4lock( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4unlock( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4error_action( RELATE4 S4PTR *, int ) ; /* Set the error action */
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S4EXPORT int S4FUNCTION relate4type( RELATE4 S4PTR *, int ) ; /* Set the relate type */
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S4EXPORT int S4FUNCTION relate4do( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4do_one( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4skip_enable( RELATE4 S4PTR *, int ) ;
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S4EXPORT int S4FUNCTION relate4dbf_in_relation( RELATE4 S4PTR *, DATA4 S4PTR * ) ;
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/* RELATION4 functions */
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S4EXPORT RELATE4 S4PTR * S4FUNCTION relate4init( DATA4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4free( RELATE4 S4PTR *, int ) ;
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S4EXPORT void S4FUNCTION relate4free_bitmaps( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4next_scan_record( RELATION4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4prev_scan_record( RELATION4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4skip( RELATE4 S4PTR *, long ) ; /* Extended record skip */
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S4EXPORT int S4FUNCTION relate4bottom( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4top( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4query_set( RELATE4 S4PTR *, char S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4eof( RELATE4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4sort_set( RELATE4 S4PTR *, char S4PTR * ) ;
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S4EXPORT void S4FUNCTION relate4sort_free( RELATION4 S4PTR *, int ) ;
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S4EXPORT int S4FUNCTION relate4sort_next_record( RELATION4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4sort_prev_record( RELATION4 S4PTR * ) ;
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S4EXPORT int S4FUNCTION relate4sort_get_record( RELATION4 S4PTR *, long ) ;
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/* Used in designer, 1 Moved Down, 0 No Move, -X Moved Up X, 2 Done */
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S4EXPORT int S4FUNCTION relate4next( RELATE4 S4PTR * S4PTR * ) ;
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#ifdef __cplusplus
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}
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#endif
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