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/* IBM_PROLOG_BEGIN_TAG */
/* This is an automatically generated prolog. */
/* */
/* $Source: src/usr/diag/prdf/common/util/prdfFlyWeight.C $ */
/* */
/* IBM CONFIDENTIAL */
/* */
/* COPYRIGHT International Business Machines Corp. 2000,2013 */
/* */
/* p1 */
/* */
/* Object Code Only (OCO) source materials */
/* Licensed Internal Code Source Materials */
/* IBM HostBoot Licensed Internal Code */
/* */
/* The source code for this program is not published or otherwise */
/* divested of its trade secrets, irrespective of what has been */
/* deposited with the U.S. Copyright Office. */
/* */
/* Origin: 30 */
/* */
/* IBM_PROLOG_END_TAG */
// Module Description **************************************************
//
// Description:
//
// End Module Description **********************************************
//----------------------------------------------------------------------
// Includes
//----------------------------------------------------------------------
#define prdfFlyWeight_C
#include <prdfFlyWeight.H>
#include <tracinterface.H>
#include <prdfHeapBucketSize.H>
#include <prdfTrace.H>
#undef prdfFlyWeight_C
//----------------------------------------------------------------------
// User Types
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Constants
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Macros
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Internal Function Prototypes
//----------------------------------------------------------------------
//----------------------------------------------------------------------
// Global Variables
//----------------------------------------------------------------------
namespace PRDF
{
//---------------------------------------------------------------------
// Member Function Specifications
//---------------------------------------------------------------------
template < class T , uint32_t S >
FlyWeight<T,S>::~FlyWeight()
{
clear();
}
//---------------------------------------------------------------------
template < class T, uint32_t S >
void FlyWeight<T,S>::clear()
{
for(typename HeapType::const_iterator i = iv_heap.begin(); i != iv_heap.end(); ++i)
{
delete[] (T*)*i;
}
iv_heap.erase(iv_heap.begin(),iv_heap.end());
iv_nextOpen = NULL;
}
//---------------------------------------------------------------------
template < class T , uint32_t S >
T & FlyWeight<T,S>::get(const T & key)
{
T * result = NULL;
T * current_array = NULL;
// search to see if we already have one
for(typename HeapType::const_iterator i = iv_heap.begin();
i != iv_heap.end() && (result == NULL); ++i)
{
current_array = (T*)*i;
for(T * p = current_array;
p != (current_array + RoundBucketSize<T,S>::value); ++p)
{
if (p == iv_nextOpen)
break;
if(*p == key)
{
result = p;
break;
}
}
}
if(result == NULL) // didn't find it - add it
{
if(iv_nextOpen == NULL) // need a new array
{
current_array = new T[RoundBucketSize<T,S>::value];
if(current_array == NULL) // dg00a
{ // dg00a
PRDF_TRAC("PRDF Could not get requested memory"); // dg00a
} // dg00a
// if the heap of array ptrs is full(or non-existant) then increase capacity by S dg00a
if(iv_heap.size() == iv_heap.capacity()) // dg00a
{ // dg00a
iv_heap.reserve(iv_heap.capacity() + RoundBucketSize<T,S>::value); // dg00a
} // dg01a
iv_heap.push_back(current_array);
iv_nextOpen = current_array;
}
*iv_nextOpen = key;
result = iv_nextOpen;
++iv_nextOpen;
if((current_array != NULL) && // Done to fix BEAM error
(iv_nextOpen == (current_array + RoundBucketSize<T,S>::value))) // this array is full
{
iv_nextOpen = NULL;
}
}
return *result;
}
} //End namespace PRDF
#if defined( FLYWEIGHT_PROFILING )
namespace PRDF
{
template < class T , uint32_t S >
void FlyWeight<T,S>::printStats(void)
{
PRDF_TRAC( "FlyWeight Memory allocated = %d",(iv_heap.size() * sizeof(T) *
RoundBucketSize<T,S>::value ) );
}
} //End namespace PRDF
#endif
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