/*
* Copyright (c) 1999
* Silicon Graphics Computer Systems, Inc.
*
* Copyright (c) 1999
* Boris Fomitchev
*
* This material is provided "as is", with absolutely no warranty expressed
* or implied. Any use is at your own risk.
*
* Permission to use or copy this software for any purpose is hereby granted
* without fee, provided the above notices are retained on all copies.
* Permission to modify the code and to distribute modified code is granted,
* provided the above notices are retained, and a notice that the code was
* modified is included with the above copyright notice.
*
*/
#include "stlport_prefix.h"
#include <hash_map>
#include <string>
#include <locale>
#include <istream>
#include "c_locale.h"
#include "locale_impl.h"
#include "acquire_release.h"
_STLP_BEGIN_NAMESPACE
_STLP_MOVE_TO_PRIV_NAMESPACE
// Those wrappers are needed to use locale functions in __acquire_category,
// all functions have to present the same prototype.
static void* _Loc_ctype_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_ctype_create(s, hint, __err_code); }
static void* _Loc_codecvt_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_codecvt_create(s, hint, __err_code); }
static void* _Loc_numeric_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_numeric_create(s, hint, __err_code); }
static void* _Loc_time_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_time_create(s, hint, __err_code); }
static void* _Loc_collate_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_collate_create(s, hint, __err_code); }
static void* _Loc_monetary_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_monetary_create(s, hint, __err_code); }
static void* _Loc_messages_create(const char * s, _Locale_name_hint* hint, int *__err_code)
{ return _Locale_messages_create(s, hint, __err_code); }
static char const* _Loc_ctype_name(void* l, char* s)
{ return _Locale_ctype_name((_Locale_ctype*)l, s); }
static char const* _Loc_codecvt_name(void* l, char* s)
{ return _Locale_codecvt_name((_Locale_codecvt*)l, s); }
static char const* _Loc_numeric_name(void* l, char* s)
{ return _Locale_numeric_name((_Locale_numeric*)l, s); }
static char const* _Loc_time_name(void* l, char* s)
{ return _Locale_time_name((_Locale_time*)l, s); }
static char const* _Loc_collate_name(void* l, char* s)
{ return _Locale_collate_name((_Locale_collate*)l, s); }
static char const* _Loc_monetary_name(void* l, char* s)
{ return _Locale_monetary_name((_Locale_monetary*)l, s); }
static char const* _Loc_messages_name(void* l, char* s)
{ return _Locale_messages_name((_Locale_messages*)l, s); }
static const char* _Loc_ctype_default(char* p)
{ return _Locale_ctype_default(p); }
static const char* _Loc_numeric_default(char * p)
{ return _Locale_numeric_default(p); }
static const char* _Loc_time_default(char* p)
{ return _Locale_time_default(p); }
static const char* _Loc_collate_default(char* p)
{ return _Locale_collate_default(p); }
static const char* _Loc_monetary_default(char* p)
{ return _Locale_monetary_default(p); }
static const char* _Loc_messages_default(char* p)
{ return _Locale_messages_default(p); }
static void _Loc_ctype_destroy(void* p) {_Locale_ctype_destroy((_Locale_ctype*)p); }
static void _Loc_codecvt_destroy(void* p) {_Locale_codecvt_destroy((_Locale_codecvt*)p); }
static void _Loc_numeric_destroy(void* p) {_Locale_numeric_destroy((_Locale_numeric*)p); }
static void _Loc_time_destroy(void* p) {_Locale_time_destroy((_Locale_time*)p);}
static void _Loc_collate_destroy(void* p) {_Locale_collate_destroy((_Locale_collate*)p);}
static void _Loc_monetary_destroy(void* p) {_Locale_monetary_destroy((_Locale_monetary*)p);}
static void _Loc_messages_destroy(void* p) {_Locale_messages_destroy((_Locale_messages*)p);}
typedef void* (*loc_create_func_t)(const char *, _Locale_name_hint*, int *__err_code);
typedef char const* (*loc_name_func_t)(void* l, char* s);
typedef void (*loc_destroy_func_t)(void* l);
typedef const char* (*loc_default_name_func_t)(char* s);
typedef char const* (*loc_extract_name_func_t)(const char*, char*, _Locale_name_hint*, int *__err_code);
//----------------------------------------------------------------------
// Acquire and release low-level category objects. The whole point of
// this is so that we don't allocate (say) four different _Locale_ctype
// objects for a single locale.
// Global hash tables for category objects.
typedef hash_map<string, pair<void*, size_t>, hash<string>, equal_to<string> > Category_Map;
// Look up a category by name
static Category_Map** ctype_hash() {
static Category_Map *_S_ctype_hash = 0;
return &_S_ctype_hash;
}
static Category_Map** codecvt_hash() {
static Category_Map *_S_codecvt_hash = 0;
return &_S_codecvt_hash;
}
static Category_Map** numeric_hash() {
static Category_Map *_S_numeric_hash = 0;
return &_S_numeric_hash;
}
static Category_Map** time_hash() {
static Category_Map *_S_time_hash = 0;
return &_S_time_hash;
}
static Category_Map** collate_hash() {
static Category_Map *_S_collate_hash = 0;
return &_S_collate_hash;
}
static Category_Map** monetary_hash() {
static Category_Map *_S_monetary_hash = 0;
return &_S_monetary_hash;
}
static Category_Map** messages_hash() {
static Category_Map *_S_messages_hash;
return &_S_messages_hash;
}
// We have a single lock for all of the hash tables. We may wish to
// replace it with six different locks.
/* REFERENCED */
static _STLP_STATIC_MUTEX& category_hash_mutex() {
static _STLP_STATIC_MUTEX lock _STLP_MUTEX_INITIALIZER;
return lock;
}
static void*
__acquire_category(const char* &name, char *buf, _Locale_name_hint* hint,
loc_extract_name_func_t extract_name,
loc_create_func_t create_obj, loc_default_name_func_t default_name,
Category_Map ** M, int *__err_code) {
#if !defined (__BORLANDC__) || (__BORLANDC__ >= 0x564)
typedef Category_Map::iterator Category_iterator;
pair<Category_iterator, bool> result;
#else
# if !defined(_STLP_DEBUG)
pair<_Ht_iterator<_Slist_iterator<pair<const string,pair<void *,unsigned int> >,_Nonconst_traits<pair<const string,pair<void *,unsigned int> > > >,_NonLocalHashMapTraitsT<pair<const string,pair<void *,unsigned int> > > >, bool> result;
# else
pair<_DBG_iter<_NonDbg_hashtable<pair<const string,pair<void *,unsigned int> >,string,hash<string>,_HashMapTraitsT<pair<const string,pair<void *,unsigned int> > >,_Select1st<pair<const string,pair<void *,unsigned int> > >,_DbgEqual<string,equal_to<string> >,allocator<pair<const string,pair<void *,unsigned int> > > >,_DbgTraits<_NonLocalHashMapTraitsT<pair<const string,pair<void *,unsigned int> > > > >, bool> result;
# endif
#endif
*__err_code = _STLP_LOC_UNDEFINED;
// Find what name to look for. Be careful if user requests the default.
if (name[0] == 0) {
name = default_name(buf);
if (name == 0 || name[0] == 0)
name = "C";
}
else {
const char* cname = extract_name(name, buf, hint, __err_code);
if (cname == 0) {
return 0;
}
name = cname;
}
Category_Map::value_type __e(name, pair<void*,size_t>((void*)0,size_t(0)));
_STLP_auto_lock sentry(category_hash_mutex());
if (!*M)
*M = new Category_Map();
// Look for an existing entry with that name.
result = (*M)->insert_noresize(__e);
if (result.second) {
// There was no entry in the map already. Create the category.
(*result.first).second.first = create_obj(name, hint, __err_code);
if (!(*result.first).second.first) {
(*M)->erase(result.first);
#if defined (_STLP_LEAKS_PEDANTIC)
if ((*M)->empty()) {
delete *M;
*M = 0;
}
#endif
return 0;
}
}
// Increment the reference count.
++((*result.first).second.second);
return (*result.first).second.first;
}
static void
__release_category(void* cat,
loc_destroy_func_t destroy_fun,
loc_name_func_t get_name,
Category_Map** M) {
Category_Map *pM = *M;
if (cat && pM) {
// Find the name of the category object.
char buf[_Locale_MAX_SIMPLE_NAME + 1];
char const* name = get_name(cat, buf);
if (name != 0) {
_STLP_auto_lock sentry(category_hash_mutex());
Category_Map::iterator it = pM->find(name);
if (it != pM->end()) {
// Decrement the ref count. If it goes to zero, delete this category
// from the map.
if (--((*it).second.second) == 0) {
void* cat1 = (*it).second.first;
destroy_fun(cat1);
pM->erase(it);
#if defined (_STLP_LEAKS_PEDANTIC)
if (pM->empty()) {
delete pM;
*M = 0;
}
#endif
}
}
}
}
}
_Locale_ctype* _STLP_CALL __acquire_ctype(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_ctype*, __acquire_category(name, buf, hint,
_Locale_extract_ctype_name, _Loc_ctype_create, _Loc_ctype_default,
ctype_hash(), __err_code));
}
_Locale_codecvt* _STLP_CALL __acquire_codecvt(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_codecvt*, __acquire_category(name, buf, hint,
_Locale_extract_ctype_name, _Loc_codecvt_create, _Loc_ctype_default,
codecvt_hash(), __err_code));
}
_Locale_numeric* _STLP_CALL __acquire_numeric(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_numeric*, __acquire_category(name, buf, hint,
_Locale_extract_numeric_name, _Loc_numeric_create, _Loc_numeric_default,
numeric_hash(), __err_code));
}
_Locale_time* _STLP_CALL __acquire_time(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_time*, __acquire_category(name, buf, hint,
_Locale_extract_time_name, _Loc_time_create, _Loc_time_default,
time_hash(), __err_code));
}
_Locale_collate* _STLP_CALL __acquire_collate(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_collate*, __acquire_category(name, buf, hint,
_Locale_extract_collate_name, _Loc_collate_create, _Loc_collate_default,
collate_hash(), __err_code));
}
_Locale_monetary* _STLP_CALL __acquire_monetary(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_monetary*, __acquire_category(name, buf, hint,
_Locale_extract_monetary_name, _Loc_monetary_create, _Loc_monetary_default,
monetary_hash(), __err_code));
}
_Locale_messages* _STLP_CALL __acquire_messages(const char* &name, char *buf, _Locale_name_hint* hint, int *__err_code) {
return __REINTERPRET_CAST(_Locale_messages*, __acquire_category(name, buf, hint,
_Locale_extract_messages_name, _Loc_messages_create, _Loc_messages_default,
messages_hash(), __err_code));
}
void _STLP_CALL __release_ctype(_Locale_ctype* cat)
{ __release_category(cat, _Loc_ctype_destroy, _Loc_ctype_name, ctype_hash()); }
void _STLP_CALL __release_codecvt(_Locale_codecvt* cat)
{ __release_category(cat, _Loc_codecvt_destroy, _Loc_codecvt_name, codecvt_hash()); }
void _STLP_CALL __release_numeric(_Locale_numeric* cat)
{ __release_category(cat, _Loc_numeric_destroy, _Loc_numeric_name, numeric_hash()); }
void _STLP_CALL __release_time(_Locale_time* cat)
{ __release_category(cat, _Loc_time_destroy, _Loc_time_name, time_hash()); }
void _STLP_CALL __release_collate(_Locale_collate* cat)
{ __release_category(cat, _Loc_collate_destroy, _Loc_collate_name, collate_hash()); }
void _STLP_CALL __release_monetary(_Locale_monetary* cat)
{ __release_category(cat, _Loc_monetary_destroy, _Loc_monetary_name, monetary_hash()); }
void _STLP_CALL __release_messages(_Locale_messages* cat)
{ __release_category(cat, _Loc_messages_destroy, _Loc_messages_name, messages_hash()); }
_STLP_MOVE_TO_STD_NAMESPACE
_STLP_END_NAMESPACE