|
|
| version 1.38, 2001/08/06 16:18:26 | version 1.45, 2001/11/01 15:45:27 |
|---|---|
| Line 2 | Line 2 |
| Parser: hash class. | Parser: hash class. |
| Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) | Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com) |
| Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) | Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf) |
| $Id$ | |
| */ | */ |
| static const char *RCSId="$Id$"; | |
| /* | /* |
| The prime numbers used from zend_hash.c, | The prime numbers used from zend_hash.c, |
| Line 16 static const char *RCSId="$Id$"; | Line 16 static const char *RCSId="$Id$"; |
| */ | */ |
| #include "pa_hash.h" | #include "pa_hash.h" |
| #include "pa_exception.h" | |
| void *Hash::Pair::operator new(size_t size, Pool& apool) { | void *Hash::Pair::operator new(size_t size, Pool& apool) { |
| return apool.malloc(size); | return apool.malloc(size, 6); |
| } | } |
| /* Zend comment: Generated on an Octa-ALPHA 300MHz CPU & 2.5GB RAM monster */ | /* Zend comment: Generated on an Octa-ALPHA 300MHz CPU & 2.5GB RAM monster */ |
| Line 31 int Hash::allocates_count= | Line 32 int Hash::allocates_count= |
| sizeof(allocates)/sizeof(uint); | sizeof(allocates)/sizeof(uint); |
| void Hash::construct(Pool& apool) { | void Hash::construct_new() { |
| allocated=allocates[allocates_index=0]; | allocated=allocates[allocates_index=0]; |
| threshold=allocated*THRESHOLD_PERCENT/100; | threshold=allocated*THRESHOLD_PERCENT/100; |
| used=0; | count=used=0; |
| refs=static_cast<Pair **>(calloc(sizeof(Pair *)*allocated)); | refs=static_cast<Pair **>(calloc(sizeof(Pair *)*allocated)); |
| } | } |
| void Hash::construct_copy(const Hash& source) { | |
| allocates_index=source.allocates_index; | |
| allocated=source.allocated; | |
| threshold=source.threshold; | |
| used=source.used; | |
| count=source.count; | |
| size_t size=sizeof(Pair *)*allocated; | |
| refs=static_cast<Pair **>(malloc(size, 7)); memcpy(refs, source.refs, size); | |
| } | |
| void Hash::expand() { | void Hash::expand() { |
| int old_size=allocated; | int old_size=allocated; |
| Pair **old_refs=refs; | Pair **old_refs=refs; |
| Line 95 bool Hash::put(const Key& key, Val *valu | Line 106 bool Hash::put(const Key& key, Val *valu |
| if(!*ref) // root cell were used? | if(!*ref) // root cell were used? |
| used++; // not, we'll use it and record the fact | used++; // not, we'll use it and record the fact |
| *ref=NEW Pair(code, key, value, *ref); | *ref=NEW Pair(code, key, value, *ref); |
| count++; | |
| return false; | return false; |
| } | } |
| void Hash::remove(const Key& key) { | |
| uint code=key.hash_code(); | |
| uint index=code%allocated; | |
| for(Pair **ref=&refs[index]; *ref; ref=&(*ref)->link) | |
| if((*ref)->code==code && (*ref)->key==key) { | |
| // found a pair with the same key | |
| *ref=(*ref)->link; | |
| --count; | |
| return; | |
| } | |
| } | |
| Hash::Val *Hash::get(const Key& key) const { | Hash::Val *Hash::get(const Key& key) const { |
| uint code=key.hash_code(); | uint code=key.hash_code(); |
| uint index=code%allocated; | uint index=code%allocated; |
| Line 136 bool Hash::put_dont_replace(const Key& k | Line 160 bool Hash::put_dont_replace(const Key& k |
| } | } |
| // proper pair not found -- create&link_in new pair | // proper pair not found -- create&link_in new pair |
| *ref=NEW Pair(code, key, value, *ref); | |
| if(!*ref) // root cell were used? | if(!*ref) // root cell were used? |
| used++; // not, we'll use it and record the fact | used++; // not, we'll use it and record the fact |
| *ref=NEW Pair(code, key, value, *ref); | |
| count++; | |
| return false; | return false; |
| } | } |
| Line 153 void Hash::for_each(For_each_func func, | Line 178 void Hash::for_each(For_each_func func, |
| Pair **ref=refs; | Pair **ref=refs; |
| for(int index=0; index<allocated; index++) | for(int index=0; index<allocated; index++) |
| for(Pair *pair=*ref++; pair; pair=pair->link) | for(Pair *pair=*ref++; pair; pair=pair->link) |
| if(pair->value) | (*func)(pair->key, pair->value, info); |
| (*func)(pair->key, pair->value, info); | } |
| void Hash::for_each(For_each_func_refed func, void *info) const { | |
| Pair **ref=refs; | |
| for(int index=0; index<allocated; index++) | |
| for(Pair *pair=*ref++; pair; pair=pair->link) | |
| (*func)(pair->key, pair->value, info); | |
| } | } |
| void* Hash::first_that(First_that_func func, void *info) const { | void* Hash::first_that(First_that_func func, void *info) const { |
| Pair **ref=refs; | Pair **ref=refs; |
| for(int index=0; index<allocated; index++) | for(int index=0; index<allocated; index++) |
| for(Pair *pair=*ref++; pair; pair=pair->link) | for(Pair *pair=*ref++; pair; pair=pair->link) |
| if(pair->value) | if(void *result=(*func)(pair->key, pair->value, info)) |
| if(void *result=(*func)(pair->key, pair->value, info)) | return result; |
| return result; | |
| return 0; | return 0; |
| } | } |
| void Hash::clear() { | void Hash::clear() { |
| memset(refs, 0, sizeof(*refs)*allocated); | memset(refs, 0, sizeof(*refs)*allocated); |
| used=0; | count=used=0; |
| } | } |