You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
3.5 KiB
106 lines
3.5 KiB
4 months ago
|
//
|
||
|
|
// ACBtree.h
|
||
|
|
// ST4
|
||
|
|
//
|
||
|
|
// Created by Alan Condit on 4/18/11.
|
||
|
|
// Copyright 2011 Alan Condit. All rights reserved.
|
||
|
|
//
|
||
|
|
|
||
|
|
typedef enum {
|
||
|
|
BTNODE,
|
||
|
|
LEAF
|
||
|
|
} NodeType;
|
||
|
|
|
||
|
|
#import <Foundation/Foundation.h>
|
||
|
|
|
||
|
|
@class AMutableDictionary;
|
||
|
|
|
||
|
|
#define BTNODESIZE 11
|
||
|
|
#define BTHNODESIZE ((BTNODESIZE-1)/2)
|
||
|
|
#define BTKeySize 38
|
||
|
|
#if defined FAILURE
|
||
|
|
#undef FAILURE
|
||
|
|
#endif
|
||
|
|
#define FAILURE -1
|
||
|
|
#if defined SUCCESS
|
||
|
|
#undef SUCCESS
|
||
|
|
#endif
|
||
|
|
#define SUCCESS 0
|
||
|
|
|
||
|
|
@interface ACBKey : NSObject {
|
||
|
|
NSInteger recnum; /* record number */
|
||
|
|
__strong NSString *key; /* key pointer id */
|
||
|
|
char kstr[BTKeySize]; /* key entry */
|
||
|
|
}
|
||
|
|
|
||
|
|
@property (assign) NSInteger recnum;
|
||
|
|
@property (retain) NSString *key;
|
||
|
|
|
||
|
|
+ (ACBKey *)newKey;
|
||
|
|
+ (ACBKey *)newKeyWithKStr:(NSString *)aKey;
|
||
|
|
- (id) init;
|
||
|
|
- (id) initWithKStr:(NSString *)aKey;
|
||
|
|
- (void)dealloc;
|
||
|
|
- (NSString *) description;
|
||
|
|
@end
|
||
|
|
|
||
|
|
@interface ACBTree : NSObject {
|
||
|
|
__strong AMutableDictionary *dict; /* The dictionary that this node belongs to */
|
||
|
|
__strong ACBTree *lnode; /* pointer to left node */
|
||
|
|
__strong ACBTree *rnode; /* pointer to right node */
|
||
|
|
__strong ACBKey **keys; /* pointer to keys */
|
||
|
|
__strong ACBTree **btNodes; /* pointers to btNodes */
|
||
|
|
__strong ACBKey *keyArray[BTNODESIZE];
|
||
|
|
__strong ACBTree *btNodeArray[BTNODESIZE];
|
||
|
|
NSInteger lnodeid; /* nodeid of left node */
|
||
|
|
NSInteger rnodeid; /* nodeid of right node */
|
||
|
|
NSInteger nodeid; /* node id */
|
||
|
|
NSInteger nodeType; /* 1 = node, 2 = leaf, -1 = unused */
|
||
|
|
NSInteger numkeys; /* number of active entries */
|
||
|
|
NSInteger numrecs; /* number of records */
|
||
|
|
NSInteger updtd; /* modified since update flag */
|
||
|
|
NSInteger keylen; /* length of key */
|
||
|
|
NSInteger kidx;
|
||
|
|
}
|
||
|
|
|
||
|
|
@property (retain) AMutableDictionary *dict;
|
||
|
|
@property (retain) ACBTree *lnode;
|
||
|
|
@property (retain) ACBTree *rnode;
|
||
|
|
@property (assign) ACBKey **keys;
|
||
|
|
@property (assign) ACBTree **btNodes;
|
||
|
|
@property (assign) NSInteger lnodeid;
|
||
|
|
@property (assign) NSInteger rnodeid;
|
||
|
|
@property (assign) NSInteger nodeid;
|
||
|
|
@property (assign) NSInteger nodeType;
|
||
|
|
@property (assign) NSInteger numkeys;
|
||
|
|
@property (assign) NSInteger numrecs;
|
||
|
|
@property (assign) NSInteger updtd;
|
||
|
|
@property (assign) NSInteger keylen;
|
||
|
|
@property (assign) NSInteger kidx;
|
||
|
|
|
||
|
|
+ (ACBTree *) newNodeWithDictionary:(AMutableDictionary *)theDict;
|
||
|
|
|
||
|
|
- (id)initWithDictionary:(AMutableDictionary *)theDict;
|
||
|
|
- (void)dealloc;
|
||
|
|
|
||
|
|
- (ACBTree *)createnode:(ACBKey *)kp0;
|
||
|
|
- (ACBTree *)deletekey:(NSString *)dkey;
|
||
|
|
- (ACBTree *)insertkey:(ACBKey *)ikp value:(id)value;
|
||
|
|
- (ACBKey *)internaldelete:(ACBKey *)dkp;
|
||
|
|
- (ACBTree *) internalinsert:(ACBKey *)key value:(id)value split:(NSInteger *)h;
|
||
|
|
- (ACBTree *) insert:(ACBKey *)key value:(id)value index:(NSInteger)hi split:(NSInteger *)h;
|
||
|
|
- (NSInteger)delfrmnode:(ACBKey *)ikp;
|
||
|
|
- (NSInteger)insinnode:(ACBKey *)key value:(id)value;
|
||
|
|
- (void)mergenode:(NSInteger)i;
|
||
|
|
- (ACBTree *)splitnode:(NSInteger)idx;
|
||
|
|
- (ACBTree *)search:(id)key;
|
||
|
|
- (NSInteger)searchnode:(id)key match:(BOOL)match;
|
||
|
|
- (void)borrowleft:(NSInteger)i;
|
||
|
|
- (void)borrowright:(NSInteger)i;
|
||
|
|
- (void)rotateleft:(NSInteger)j;
|
||
|
|
- (void)rotateright:(NSInteger)j;
|
||
|
|
- (NSInteger) keyWalkLeaves;
|
||
|
|
- (NSInteger) objectWalkLeaves;
|
||
|
|
- (NSString *) description;
|
||
|
|
@end
|