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//$Id$
#ifndef CACHING_UTILITY_T_C
#define CACHING_UTILITY_T_C
#include "ace/Caching_Utility_T.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#define ACE_LACKS_PRAGMA_ONCE
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Cleanup_Strategies_T.h"
#if !defined (__ACE_INLINE__)
#include "ace/Caching_Utility_T.i"
#endif /* __ACE_INLINE__ */
ACE_RCSID(ace, Caching_Utility_T, "$Id$")
/////////////////////////////////////////////////////////////////////////////////////////////////////
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Pair_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
ACE_Cleanup_Strategy<KEY, VALUE, CONTAINER> *cleanup_s,
double purge_percent)
{
// Check that the purge_percent is non-zero.
if (purge_percent == 0)
return 0;
// Get the number of entries in the container.
size_t current_map_size = container.current_size ();
// Also whether the number of entries in the cache is just one!
// Oops! then there is no way out but exiting. So return an error.
if (current_map_size <= 1)
return 0;
// Calculate the no of entries to remove from the cache depending
// upon the <purge_percent>.
size_t entries_to_remove = size_t ((double (purge_percent) / 100 * current_map_size) + 0.5);
KEY *key_to_remove = 0;
VALUE *value_to_remove = 0;
for (size_t i = 0; i < entries_to_remove ; ++i)
{
this->minimum (container,
key_to_remove,
value_to_remove);
if (cleanup_s->cleanup (container,
key_to_remove,
value_to_remove) == -1)
return -1;
}
return 0;
}
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> void
ACE_Pair_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::minimum (CONTAINER &container,
KEY *&key_to_remove,
VALUE *&value_to_remove)
{
// Starting values.
ITERATOR iter = container.begin ();
ITERATOR end = container.end ();
ATTRIBUTES min = (*iter).int_id_.second ();
key_to_remove = &(*iter).ext_id_;
value_to_remove = &(*iter).int_id_;
// The iterator moves thru the container searching for the entry
// with the lowest ATTRIBUTES.
for (++iter;
iter != end;
++iter)
{
if (min > (*iter).int_id_.second ())
{
// Ah! an item with lower ATTTRIBUTES...
min = (*iter).int_id_.second ();
key_to_remove = &(*iter).ext_id_;
value_to_remove = &(*iter).int_id_;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Handler_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
ACE_Cleanup_Strategy<KEY, VALUE, CONTAINER> *cleanup_s,
double purge_percent)
{
// Check that the purge_percent is non-zero.
if (purge_percent == 0)
return 0;
// Get the number of entries in the container.
size_t current_map_size = container.current_size ();
// Also whether the number of entries in the cache is just one!
// Oops! then there is no way out but exiting. So return an error.
if (current_map_size <= 1)
return 0;
// Calculate the no of entries to remove from the cache depending
// upon the <purge_percent>.
size_t entries_to_remove = (purge_percent / 100 * current_map_size) + 0.5;
KEY *key_to_remove = 0;
VALUE *value_to_remove = 0;
for (size_t i = 0; i < entries_to_remove ; ++i)
{
this->minimum (container,
key_to_remove,
value_to_remove);
if (cleanup_s->cleanup (container,
key_to_remove,
value_to_remove) == -1)
return -1;
}
return 0;
}
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> void
ACE_Handler_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::minimum (CONTAINER &container,
KEY *&key_to_remove,
VALUE *&value_to_remove)
{
// Starting values.
ITERATOR iter = container.begin ();
ITERATOR end = container.end ();
ATTRIBUTES min = (*iter).int_id_->caching_attributes ();
key_to_remove = &(*iter).ext_id_;
value_to_remove = &(*iter).int_id_;
// The iterator moves thru the container searching for the entry
// with the lowest ATTRIBUTES.
for (++iter;
iter != end;
++iter)
{
if (min > (*iter).int_id_->caching_attributes () &&
(*iter).int_id_->active () != 1)
{
// Ah! an item with lower ATTTRIBUTES...
min = (*iter).int_id_->caching_attributes ();
key_to_remove = &(*iter).ext_id_;
value_to_remove = &(*iter).int_id_;
}
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> int
ACE_Null_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::clear_cache (CONTAINER &container,
ACE_Cleanup_Strategy<KEY, VALUE, CONTAINER> *cleanup_s,
double purge_percent)
{
ACE_UNUSED_ARG (container);
ACE_UNUSED_ARG (cleanup_s);
ACE_UNUSED_ARG (purge_percent);
return 0;
}
template <class KEY, class VALUE, class CONTAINER, class ITERATOR, class ATTRIBUTES> void
ACE_Null_Caching_Utility<KEY, VALUE, CONTAINER, ITERATOR, ATTRIBUTES>::minimum (CONTAINER &container,
KEY *&key_to_remove,
VALUE *&value_to_remove)
{
ACE_UNUSED_ARG (container);
ACE_UNUSED_ARG (key_to_remove);
ACE_UNUSED_ARG (value_to_remove);
}
#endif /* CACHING_UTILITY_T_C */
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