1b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru/* 2b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru****************************************************************************** 31b7d32f919554dda9c193b32188251337bc756f1Fredrik Roubert* Copyright (C) 1997-2014, International Business Machines 4b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru* Corporation and others. All Rights Reserved. 5b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru****************************************************************************** 6b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru* Date Name Description 7b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru* 03/28/00 aliu Creation. 8b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru****************************************************************************** 9b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru*/ 10b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 11b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#ifndef HASH_H 12b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#define HASH_H 13b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 14b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "unicode/unistr.h" 15b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "unicode/uobject.h" 1683a171d1a62abf406f7f44ae671823d5ec20db7dCraig Cornelius#include "cmemory.h" 17b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#include "uhash.h" 18b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 19b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste QueruU_NAMESPACE_BEGIN 20b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 21b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru/** 22b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Hashtable is a thin C++ wrapper around UHashtable, a general-purpose void* 23b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * hashtable implemented in C. Hashtable is designed to be idiomatic and 24b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * easy-to-use in C++. 25b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * 26b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Hashtable is an INTERNAL CLASS. 27b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 28b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruclass U_COMMON_API Hashtable : public UMemory { 29b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UHashtable* hash; 30b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UHashtable hashObj; 31b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 32b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru inline void init(UHashFunction *keyHash, UKeyComparator *keyComp, UValueComparator *valueComp, UErrorCode& status); 33b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 34b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Querupublic: 35b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /** 36b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Construct a hashtable 37b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * @param ignoreKeyCase If true, keys are case insensitive. 38b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * @param status Error code 39b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 40b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable(UBool ignoreKeyCase, UErrorCode& status); 41b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 42b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /** 43b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Construct a hashtable 4450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * @param keyComp Comparator for comparing the keys 4550294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho * @param valueComp Comparator for comparing the values 46b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * @param status Error code 47b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 48b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable(UKeyComparator *keyComp, UValueComparator *valueComp, UErrorCode& status); 49b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 50b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /** 51b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Construct a hashtable 52b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * @param status Error code 53b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 54b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable(UErrorCode& status); 55b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 56b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /** 57b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Construct a hashtable, _disregarding any error_. Use this constructor 58b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * with caution. 59b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 60b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable(); 61b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 62b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru /** 63b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Non-virtual destructor; make this virtual if Hashtable is subclassed 64b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * in the future. 65b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru */ 66b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ~Hashtable(); 67b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 68b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UObjectDeleter *setValueDeleter(UObjectDeleter *fn); 69b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 70b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int32_t count() const; 71b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 72b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru void* put(const UnicodeString& key, void* value, UErrorCode& status); 73b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 74b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int32_t puti(const UnicodeString& key, int32_t value, UErrorCode& status); 75b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 76b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru void* get(const UnicodeString& key) const; 77b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 78b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int32_t geti(const UnicodeString& key) const; 79b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 80b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru void* remove(const UnicodeString& key); 81b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 82b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru int32_t removei(const UnicodeString& key); 83b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 84b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru void removeAll(void); 85b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 86b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const UHashElement* find(const UnicodeString& key) const; 87b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 881b7d32f919554dda9c193b32188251337bc756f1Fredrik Roubert /** 891b7d32f919554dda9c193b32188251337bc756f1Fredrik Roubert * @param pos - must be UHASH_FIRST on first call, and untouched afterwards. 901b7d32f919554dda9c193b32188251337bc756f1Fredrik Roubert * @see uhash_nextElement 911b7d32f919554dda9c193b32188251337bc756f1Fredrik Roubert */ 92b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru const UHashElement* nextElement(int32_t& pos) const; 93b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 9450294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UKeyComparator* setKeyComparator(UKeyComparator*keyComp); 95b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 9650294ead5e5d23f5bbfed76e00e6b510bd41eee1claireho UValueComparator* setValueComparator(UValueComparator* valueComp); 97b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 98b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UBool equals(const Hashtable& that) const; 99b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruprivate: 100b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable(const Hashtable &other); // forbid copying of this class 101b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru Hashtable &operator=(const Hashtable &other); // forbid copying of this class 102b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru}; 103b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 104b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru/********************************************************************* 105b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru * Implementation 106b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ********************************************************************/ 107b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 108b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline void Hashtable::init(UHashFunction *keyHash, UKeyComparator *keyComp, 109b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UValueComparator *valueComp, UErrorCode& status) { 110b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (U_FAILURE(status)) { 111b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return; 112b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 113b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru uhash_init(&hashObj, keyHash, keyComp, valueComp, &status); 114b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (U_SUCCESS(status)) { 115b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru hash = &hashObj; 11683a171d1a62abf406f7f44ae671823d5ec20db7dCraig Cornelius uhash_setKeyDeleter(hash, uprv_deleteUObject); 117b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 118b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 119b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 120b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline Hashtable::Hashtable(UKeyComparator *keyComp, UValueComparator *valueComp, 121b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UErrorCode& status) : hash(0) { 122b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru init( uhash_hashUnicodeString, keyComp, valueComp, status); 123b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 124b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline Hashtable::Hashtable(UBool ignoreKeyCase, UErrorCode& status) 125b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru : hash(0) 126b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 127b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru init(ignoreKeyCase ? uhash_hashCaselessUnicodeString 128b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru : uhash_hashUnicodeString, 129b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru ignoreKeyCase ? uhash_compareCaselessUnicodeString 130b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru : uhash_compareUnicodeString, 131b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru NULL, 132b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru status); 133b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 134b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 135b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline Hashtable::Hashtable(UErrorCode& status) 136b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru : hash(0) 137b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 138b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru init(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, status); 139b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 140b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 141b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline Hashtable::Hashtable() 142b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru : hash(0) 143b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru{ 144b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru UErrorCode status = U_ZERO_ERROR; 145b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru init(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, status); 146b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 147b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 148b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline Hashtable::~Hashtable() { 149b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru if (hash != NULL) { 150b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru uhash_close(hash); 151b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru } 152b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 153b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 154b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline UObjectDeleter *Hashtable::setValueDeleter(UObjectDeleter *fn) { 155b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_setValueDeleter(hash, fn); 156b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 157b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 158b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline int32_t Hashtable::count() const { 159b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_count(hash); 160b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 161b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 162b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline void* Hashtable::put(const UnicodeString& key, void* value, UErrorCode& status) { 163b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_put(hash, new UnicodeString(key), value, &status); 164b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 165b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 166b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline int32_t Hashtable::puti(const UnicodeString& key, int32_t value, UErrorCode& status) { 167b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_puti(hash, new UnicodeString(key), value, &status); 168b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 169b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 170b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline void* Hashtable::get(const UnicodeString& key) const { 171b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_get(hash, &key); 172b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 173b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 174b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline int32_t Hashtable::geti(const UnicodeString& key) const { 175b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_geti(hash, &key); 176b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 177b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 178b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline void* Hashtable::remove(const UnicodeString& key) { 179b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_remove(hash, &key); 180b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 181b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 182b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline int32_t Hashtable::removei(const UnicodeString& key) { 183b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_removei(hash, &key); 184b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 185b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 186b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline const UHashElement* Hashtable::find(const UnicodeString& key) const { 187b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_find(hash, &key); 188b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 189b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 190b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline const UHashElement* Hashtable::nextElement(int32_t& pos) const { 191b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_nextElement(hash, &pos); 192b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 193b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 194b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline void Hashtable::removeAll(void) { 195b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru uhash_removeAll(hash); 196b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 197b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 19850294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoinline UKeyComparator* Hashtable::setKeyComparator(UKeyComparator*keyComp){ 199b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_setKeyComparator(hash, keyComp); 200b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 201b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 20250294ead5e5d23f5bbfed76e00e6b510bd41eee1clairehoinline UValueComparator* Hashtable::setValueComparator(UValueComparator* valueComp){ 203b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_setValueComparator(hash, valueComp); 204b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 205b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 206b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queruinline UBool Hashtable::equals(const Hashtable& that)const{ 207b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru return uhash_equals(hash, that.hash); 208b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru} 209b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste QueruU_NAMESPACE_END 210b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 211b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru#endif 212b13da9df870a61b11249bf741347908dbea0edd8Jean-Baptiste Queru 213