/*:*
 *: File: ./src/maps/hashmap.tmpl
 *: 
 *: yChat; Homepage: ychat.buetow.org; Version 0.9.0-CURRENT
 *: 
 *: Copyright (C) 2003 Paul C. Buetow, Volker Richter
 *: Copyright (C) 2004 Paul C. Buetow
 *: Copyright (C) 2005 EXA Digital Solutions GbR
 *: Copyright (C) 2006, 2007 Paul C. Buetow
 *: 
 *: This program is free software; you can redistribute it and/or
 *: modify it under the terms of the GNU General Public License
 *: as published by the Free Software Foundation; either version 2
 *: of the License, or (at your option) any later version.
 *: 
 *: This program is distributed in the hope that it will be useful,
 *: but WITHOUT ANY WARRANTY; without even the implied warranty of
 *: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *: GNU General Public License for more details.
 *: 
 *: You should have received a copy of the GNU General Public License
 *: along with this program; if not, write to the Free Software
 *: Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *:*/

template<class key_type_>
bool
compare_allocator<key_type_>::operator()(key_type_ t_key_1, key_type_ t_key_2) const
{
  return t_key_1.compare(t_key_2) == 0;
}

template<class key_type_>
bool
equals_allocator<key_type_>::operator()(key_type_ t_key_1, key_type_ t_key_2) const
{
  return t_key_1 == t_key_2;
}

template<class key_type_>
int
size_hash<key_type_>::operator()(key_type_ t_key) const
{
  int i_hash = 0;
  int i_size = t_key.size();

  for ( size_t i = 0; i < i_size; ++i )
    i_hash =  ( i_hash << 5 ) ^ t_key.at(i) ^ i_hash;

  return i_hash;
}

template<class key_type_>
int
self_hash<key_type_>::operator()(key_type_ t_key) const
{
  return t_key;
}


template<class obj_type, class key_type_, class hash_type, class alloc_type>
obj_type
hashmap<obj_type, key_type_, hash_type, alloc_type>::get_set_elem(obj_type t_obj, key_type_ t_key)
{
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter = this->find(t_key);

  if ( iter == this->end() )
  {
    set_elem(t_obj, t_key);
    return obj_type();
  }

  obj_type t_ret = iter->second;
  iter->second = t_obj;

  return t_ret;
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
obj_type
hashmap<obj_type, key_type_, hash_type, alloc_type>::get_or_callback_set
(obj_type (*func)(void*), void* p_void, key_type_ t_key)
{
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter = this->find(t_key);

  if ( iter == this->end() )
  {
    obj_type t_obj = (*func) (p_void);
    set_elem(t_obj, t_key);
    return t_obj;
  }

  return iter->second;
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
void
hashmap<obj_type, key_type_, hash_type, alloc_type>::set_elem(obj_type t_obj, key_type_ t_key)
{
  (*this)[t_key] = t_obj;
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
obj_type
hashmap<obj_type, key_type_, hash_type, alloc_type>::get_elem(key_type_ t_key)
{
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter = this->find(t_key);

  if ( iter != this->end() )
    return iter->second;

  return obj_type();
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
vector<key_type_>*
hashmap<obj_type, key_type_, hash_type, alloc_type>::get_key_vector()
{
  vector<key_type_>* p_vec = new vector<key_type_>;
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter;

  for ( iter = this->begin(); iter != this->end(); ++iter )
    p_vec->push_back(iter->first);

  return p_vec;
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
bool
hashmap<obj_type, key_type_, hash_type, alloc_type>::exists(key_type_ t_key)
{
  return this->find(t_key) != this->end();
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
void
hashmap<obj_type, key_type_, hash_type, alloc_type>::run_func( void (*func)(obj_type) )
{
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter;
  for ( iter = this->begin(); iter != this->end(); ++iter )
    ( *func ) ( iter->second );
}

template<class obj_type, class key_type_, class hash_type, class alloc_type>
void
hashmap<obj_type, key_type_, hash_type, alloc_type>::run_func( void (*func)(obj_type, void*), void* v_arg )
{
  typename hashmap<obj_type, key_type_, hash_type, alloc_type>::iterator iter;
  for ( iter = this->begin(); iter != this->end(); ++iter )
    ( *func ) ( iter->second, v_arg );
}