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-rw-r--r--kopete/plugins/statistics/sqlite/hash.h109
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diff --git a/kopete/plugins/statistics/sqlite/hash.h b/kopete/plugins/statistics/sqlite/hash.h
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-/*
-** 2001 September 22
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-*************************************************************************
-** This is the header file for the generic hash-table implemenation
-** used in SQLite.
-**
-** $Id$
-*/
-#ifndef _SQLITE_HASH_H_
-#define _SQLITE_HASH_H_
-
-/* Forward declarations of structures. */
-typedef struct Hash Hash;
-typedef struct HashElem HashElem;
-
-/* A complete hash table is an instance of the following structure.
-** The internals of this structure are intended to be opaque -- client
-** code should not attempt to access or modify the fields of this structure
-** directly. Change this structure only by using the routines below.
-** However, many of the "procedures" and "functions" for modifying and
-** accessing this structure are really macros, so we can't really make
-** this structure opaque.
-*/
-struct Hash {
- char keyClass; /* SQLITE_HASH_INT, _POINTER, _STRING, _BINARY */
- char copyKey; /* True if copy of key made on insert */
- int count; /* Number of entries in this table */
- HashElem *first; /* The first element of the array */
- int htsize; /* Number of buckets in the hash table */
- struct _ht { /* the hash table */
- int count; /* Number of entries with this hash */
- HashElem *chain; /* Pointer to first entry with this hash */
- } *ht;
-};
-
-/* Each element in the hash table is an instance of the following
-** structure. All elements are stored on a single doubly-linked list.
-**
-** Again, this structure is intended to be opaque, but it can't really
-** be opaque because it is used by macros.
-*/
-struct HashElem {
- HashElem *next, *prev; /* Next and previous elements in the table */
- void *data; /* Data associated with this element */
- void *pKey; int nKey; /* Key associated with this element */
-};
-
-/*
-** There are 4 different modes of operation for a hash table:
-**
-** SQLITE_HASH_INT nKey is used as the key and pKey is ignored.
-**
-** SQLITE_HASH_POINTER pKey is used as the key and nKey is ignored.
-**
-** SQLITE_HASH_STRING pKey points to a string that is nKey bytes long
-** (including the null-terminator, if any). Case
-** is ignored in comparisons.
-**
-** SQLITE_HASH_BINARY pKey points to binary data nKey bytes long.
-** memcmp() is used to compare keys.
-**
-** A copy of the key is made for SQLITE_HASH_STRING and SQLITE_HASH_BINARY
-** if the copyKey parameter to HashInit is 1.
-*/
-/* #define SQLITE_HASH_INT 1 // NOT USED */
-/* #define SQLITE_HASH_POINTER 2 // NOT USED */
-#define SQLITE_HASH_STRING 3
-#define SQLITE_HASH_BINARY 4
-
-/*
-** Access routines. To delete, insert a NULL pointer.
-*/
-void sqlite3HashInit(Hash*, int keytype, int copyKey);
-void *sqlite3HashInsert(Hash*, const void *pKey, int nKey, void *pData);
-void *sqlite3HashFind(const Hash*, const void *pKey, int nKey);
-void sqlite3HashClear(Hash*);
-
-/*
-** Macros for looping over all elements of a hash table. The idiom is
-** like this:
-**
-** Hash h;
-** HashElem *p;
-** ...
-** for(p=sqliteHashFirst(&h); p; p=sqliteHashNext(p)){
-** SomeStructure *pData = sqliteHashData(p);
-** // do something with pData
-** }
-*/
-#define sqliteHashFirst(H) ((H)->first)
-#define sqliteHashNext(E) ((E)->next)
-#define sqliteHashData(E) ((E)->data)
-#define sqliteHashKey(E) ((E)->pKey)
-#define sqliteHashKeysize(E) ((E)->nKey)
-
-/*
-** Number of entries in a hash table
-*/
-#define sqliteHashCount(H) ((H)->count)
-
-#endif /* _SQLITE_HASH_H_ */