Index: mozilla/nsprpub/lib/ds/plhash.h |
=================================================================== |
--- mozilla/nsprpub/lib/ds/plhash.h (revision 191424) |
+++ mozilla/nsprpub/lib/ds/plhash.h (working copy) |
@@ -1,126 +0,0 @@ |
-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
-/* This Source Code Form is subject to the terms of the Mozilla Public |
- * License, v. 2.0. If a copy of the MPL was not distributed with this |
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
- |
-#ifndef plhash_h___ |
-#define plhash_h___ |
-/* |
- * API to portable hash table code. |
- */ |
-#include <stdio.h> |
-#include "prtypes.h" |
- |
-PR_BEGIN_EXTERN_C |
- |
-typedef struct PLHashEntry PLHashEntry; |
-typedef struct PLHashTable PLHashTable; |
-typedef PRUint32 PLHashNumber; |
-#define PL_HASH_BITS 32 /* Number of bits in PLHashNumber */ |
-typedef PLHashNumber (PR_CALLBACK *PLHashFunction)(const void *key); |
-typedef PRIntn (PR_CALLBACK *PLHashComparator)(const void *v1, const void *v2); |
- |
-typedef PRIntn (PR_CALLBACK *PLHashEnumerator)(PLHashEntry *he, PRIntn i, void *arg); |
- |
-/* Flag bits in PLHashEnumerator's return value */ |
-#define HT_ENUMERATE_NEXT 0 /* continue enumerating entries */ |
-#define HT_ENUMERATE_STOP 1 /* stop enumerating entries */ |
-#define HT_ENUMERATE_REMOVE 2 /* remove and free the current entry */ |
-#define HT_ENUMERATE_UNHASH 4 /* just unhash the current entry */ |
- |
-typedef struct PLHashAllocOps { |
- void * (PR_CALLBACK *allocTable)(void *pool, PRSize size); |
- void (PR_CALLBACK *freeTable)(void *pool, void *item); |
- PLHashEntry * (PR_CALLBACK *allocEntry)(void *pool, const void *key); |
- void (PR_CALLBACK *freeEntry)(void *pool, PLHashEntry *he, PRUintn flag); |
-} PLHashAllocOps; |
- |
-#define HT_FREE_VALUE 0 /* just free the entry's value */ |
-#define HT_FREE_ENTRY 1 /* free value and entire entry */ |
- |
-struct PLHashEntry { |
- PLHashEntry *next; /* hash chain linkage */ |
- PLHashNumber keyHash; /* key hash function result */ |
- const void *key; /* ptr to opaque key */ |
- void *value; /* ptr to opaque value */ |
-}; |
- |
-struct PLHashTable { |
- PLHashEntry **buckets; /* vector of hash buckets */ |
- PRUint32 nentries; /* number of entries in table */ |
- PRUint32 shift; /* multiplicative hash shift */ |
- PLHashFunction keyHash; /* key hash function */ |
- PLHashComparator keyCompare; /* key comparison function */ |
- PLHashComparator valueCompare; /* value comparison function */ |
- const PLHashAllocOps *allocOps; /* allocation operations */ |
- void *allocPriv; /* allocation private data */ |
-#ifdef HASHMETER |
- PRUint32 nlookups; /* total number of lookups */ |
- PRUint32 nsteps; /* number of hash chains traversed */ |
- PRUint32 ngrows; /* number of table expansions */ |
- PRUint32 nshrinks; /* number of table contractions */ |
-#endif |
-}; |
- |
-/* |
- * Create a new hash table. |
- * If allocOps is null, use default allocator ops built on top of malloc(). |
- */ |
-PR_EXTERN(PLHashTable *) |
-PL_NewHashTable(PRUint32 numBuckets, PLHashFunction keyHash, |
- PLHashComparator keyCompare, PLHashComparator valueCompare, |
- const PLHashAllocOps *allocOps, void *allocPriv); |
- |
-PR_EXTERN(void) |
-PL_HashTableDestroy(PLHashTable *ht); |
- |
-/* Higher level access methods */ |
-PR_EXTERN(PLHashEntry *) |
-PL_HashTableAdd(PLHashTable *ht, const void *key, void *value); |
- |
-PR_EXTERN(PRBool) |
-PL_HashTableRemove(PLHashTable *ht, const void *key); |
- |
-PR_EXTERN(void *) |
-PL_HashTableLookup(PLHashTable *ht, const void *key); |
- |
-PR_EXTERN(void *) |
-PL_HashTableLookupConst(PLHashTable *ht, const void *key); |
- |
-PR_EXTERN(PRIntn) |
-PL_HashTableEnumerateEntries(PLHashTable *ht, PLHashEnumerator f, void *arg); |
- |
-/* General-purpose C string hash function. */ |
-PR_EXTERN(PLHashNumber) |
-PL_HashString(const void *key); |
- |
-/* Compare strings using strcmp(), return true if equal. */ |
-PR_EXTERN(PRIntn) |
-PL_CompareStrings(const void *v1, const void *v2); |
- |
-/* Stub function just returns v1 == v2 */ |
-PR_EXTERN(PRIntn) |
-PL_CompareValues(const void *v1, const void *v2); |
- |
-/* Low level access methods */ |
-PR_EXTERN(PLHashEntry **) |
-PL_HashTableRawLookup(PLHashTable *ht, PLHashNumber keyHash, const void *key); |
- |
-PR_EXTERN(PLHashEntry **) |
-PL_HashTableRawLookupConst(PLHashTable *ht, PLHashNumber keyHash, |
- const void *key); |
- |
-PR_EXTERN(PLHashEntry *) |
-PL_HashTableRawAdd(PLHashTable *ht, PLHashEntry **hep, PLHashNumber keyHash, |
- const void *key, void *value); |
- |
-PR_EXTERN(void) |
-PL_HashTableRawRemove(PLHashTable *ht, PLHashEntry **hep, PLHashEntry *he); |
- |
-/* This can be trivially implemented using PL_HashTableEnumerateEntries. */ |
-PR_EXTERN(PRIntn) |
-PL_HashTableDump(PLHashTable *ht, PLHashEnumerator dump, FILE *fp); |
- |
-PR_END_EXTERN_C |
- |
-#endif /* plhash_h___ */ |