/*

 * Portions Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.

 *

 * 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"

#if defined(__SYMBIAN32__WSD__)

#include "libstdcppwsd.h"

#endif

_STLP_BEGIN_NAMESPACE

_STLP_MOVE_TO_PRIV_NAMESPACE

// those wrappers are needed to avoid extern "C"

static void* _Loc_ctype_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_ctype_create(s, hint); }

static void* _Loc_numeric_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_numeric_create(s, hint); }

static void* _Loc_time_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_time_create(s, hint); }

static void* _Loc_collate_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_collate_create(s, hint); }

static void* _Loc_monetary_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_monetary_create(s, hint); }

static void* _Loc_messages_create(const char * s, _Locale_name_hint* hint)

{ return _Locale_messages_create(s, hint); }

static char const* _Loc_ctype_name(const void* l, char* s)

{ return _Locale_ctype_name(l, s); }

static char const* _Loc_numeric_name(const void* l, char* s)

{ return _Locale_numeric_name(l, s); }

static char const* _Loc_time_name(const void* l, char* s)

{ return _Locale_time_name(l,s); }

static char const* _Loc_collate_name( const void* l, char* s)

{ return _Locale_collate_name(l,s); }

static char const* _Loc_monetary_name(const void* l, char* s)

{ return _Locale_monetary_name(l,s); }

static char const* _Loc_messages_name(const void* l, char* s)

{ return _Locale_messages_name(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(p); }

static void _Loc_numeric_destroy(void* p)  {_Locale_numeric_destroy(p); }

static void _Loc_time_destroy(void* p)     {_Locale_time_destroy(p);}

static void _Loc_collate_destroy(void* p)  {_Locale_collate_destroy(p);}

static void _Loc_monetary_destroy(void* p) {_Locale_monetary_destroy(p);}

static void _Loc_messages_destroy(void* p) {_Locale_messages_destroy(p);}

typedef void* (*loc_create_func_t)(const char *, _Locale_name_hint*);

typedef char const* (*loc_name_func_t)(const 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*);

//----------------------------------------------------------------------

// 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;

# if !defined(__SYMBIAN32__WSD__)

// 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** 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;

}

#else

// Look up a category by name

static Category_Map** ctype_hash() {

  return &get_libcpp_wsd()._S_ctype_hash;

}

static Category_Map** numeric_hash() {

  return &get_libcpp_wsd()._S_numeric_hash;

}

static Category_Map** time_hash() {

  return &get_libcpp_wsd()._S_time_hash;

}

static Category_Map** collate_hash() {

  return &get_libcpp_wsd()._S_collate_hash;

}

static Category_Map** monetary_hash() {

  return &get_libcpp_wsd()._S_monetary_hash;

}

static Category_Map** messages_hash() {

  return &get_libcpp_wsd()._S_messages_hash;

}

void Category_Map_Init()

{

	get_libcpp_wsd()._S_ctype_hash = 0;

	get_libcpp_wsd()._S_numeric_hash = 0;

	get_libcpp_wsd()._S_time_hash = 0;

	get_libcpp_wsd()._S_collate_hash = 0;

	get_libcpp_wsd()._S_monetary_hash = 0;

	get_libcpp_wsd()._S_messages_hash = 0;

}

# endif

// We have a single lock for all of the hash tables.  We may wish to

// replace it with six different locks.

/* REFERENCED */

# if !defined(__SYMBIAN32__WSD__)

static _STLP_STATIC_MUTEX __category_hash_lock _STLP_MUTEX_INITIALIZER;

#else

#define __category_hash_lock	   get_locale_catalog_category_hash_lock()

void locale_catalog_category_hash_lock_init()

{

	__category_hash_lock._M_lock.iState   = _ENeedsNormalInit;

	__category_hash_lock._M_lock.iPtr     = 0;

	__category_hash_lock._M_lock.iReentry = 0;

}

# endif

static void*

__acquire_category(const char* name, _Locale_name_hint* hint,

                   loc_extract_name_func_t extract_name,

                   loc_create_func_t create_obj, loc_default_name_func_t default_obj,

                   Category_Map ** M) {

#if !defined (__BORLANDC__) || (__BORLANDC__ >= 0x564)

  typedef Category_Map::iterator Category_iterator;

  pair<Category_iterator, bool> result;

#else

  pair<Category_Map::iterator, bool> result;

#endif

  // Find what name to look for. Be careful if user requests the default.

  const char *cname;

  char buf[_Locale_MAX_SIMPLE_NAME];

  if (name == 0 || name[0] == 0) {

    cname = default_obj(buf);

    if (cname == 0 || cname[0] == 0)

      cname = "C";

  }

  else {

    cname = extract_name(name, buf, hint);

    if (cname == 0) {

      return 0;

    }

  }

  Category_Map::value_type __e(cname, pair<void*,size_t>((void*)0,size_t(0)));

  _STLP_auto_lock sentry(__category_hash_lock);

  if (!*M)

    *M = new Category_Map();

#if defined(__SC__)    //*TY 06/01/2000 - added workaround for SCpp

  if(!*M) delete *M;  //*TY 06/01/2000 - it forgets to generate dtor for Category_Map class. This fake code forces to generate one.

#endif          //*TY 06/01/2000 -

  // Look for an existing entry with that name.

  result = (*M)->insert_noresize(__e);

  // There was no entry in the map already.  Create the category.

  if (result.second)

    (*result.first).second.first = create_obj(cname, hint);

  // 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_lock);

      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 /* _STLP_LEAKS_PEDANTIC */

        }

      }

    }

  }

}

_Locale_ctype* _STLP_CALL __acquire_ctype(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_ctype*, __acquire_category(name, hint,

                                                               _Locale_extract_ctype_name, _Loc_ctype_create, _Loc_ctype_default,

                                                               ctype_hash()));

}

_Locale_numeric* _STLP_CALL __acquire_numeric(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_numeric*, __acquire_category(name, hint,

                                                                 _Locale_extract_numeric_name, _Loc_numeric_create, _Loc_numeric_default,

                                                                 numeric_hash()));

}

_STLP_DECLSPEC _Locale_time* _STLP_CALL __acquire_time(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_time*, __acquire_category(name, hint,

                                                              _Locale_extract_time_name, _Loc_time_create, _Loc_time_default,

                                                              time_hash()));

}

_Locale_collate* _STLP_CALL __acquire_collate(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_collate*, __acquire_category(name, hint,

                                                                 _Locale_extract_collate_name, _Loc_collate_create, _Loc_collate_default,

                                                                 collate_hash()));

}

_Locale_monetary* _STLP_CALL __acquire_monetary(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_monetary*, __acquire_category(name, hint,

                                                                  _Locale_extract_monetary_name, _Loc_monetary_create, _Loc_monetary_default,

                                                                  monetary_hash()));

}

_Locale_messages* _STLP_CALL __acquire_messages(const char* name, _Locale_name_hint* hint) {

  return __REINTERPRET_CAST(_Locale_messages*, __acquire_category(name, hint,

                                                                  _Locale_extract_messages_name, _Loc_messages_create, _Loc_messages_default,

                                                                  messages_hash()));

}

void _STLP_CALL __release_ctype(_Locale_ctype* cat)

{ __release_category(cat, _Loc_ctype_destroy, _Loc_ctype_name, ctype_hash()); }

void _STLP_CALL __release_numeric(_Locale_numeric* cat)

{ __release_category(cat, _Loc_numeric_destroy, _Loc_numeric_name, numeric_hash()); }

_STLP_DECLSPEC 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