Files
epics-base/src/cas/generic/clientBufMemoryManager.cpp
2003-02-12 19:06:15 +00:00

58 lines
1.7 KiB
C++

/*************************************************************************\
* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
* National Laboratory.
* Copyright (c) 2002 The Regents of the University of California, as
* Operator of Los Alamos National Laboratory.
* EPICS BASE Versions 3.13.7
* and higher are distributed subject to a Software License Agreement found
* in file LICENSE that is included with this distribution.
\*************************************************************************/
/*
* $Id$
*
* Author Jeffrey O. Hill
* johill@lanl.gov
* 505 665 1831
*/
#define epicsExportSharedSymbols
#include "clientBufMemoryManager.h"
bufSizeT clientBufMemoryManager::maxSize () const
{
return bufferFactory.largeBufferSize ();
}
casBufferParm clientBufMemoryManager::allocate ( bufSizeT newMinSize )
{
casBufferParm parm;
if ( newMinSize <= bufferFactory.smallBufferSize () ) {
parm.pBuf = bufferFactory.newSmallBuffer ();
parm.bufSize = bufferFactory.smallBufferSize ();
}
else if ( newMinSize <= bufferFactory.largeBufferSize () ) {
parm.pBuf = bufferFactory.newLargeBuffer ();
parm.bufSize = bufferFactory.largeBufferSize ();
}
else {
parm.pBuf = static_cast < char * > ( ::operator new ( newMinSize ) );
parm.bufSize = newMinSize;
}
return parm;
}
void clientBufMemoryManager::release ( char * pBuf, bufSizeT bufSize )
{
if ( bufSize == bufferFactory.smallBufferSize () ) {
bufferFactory.destroySmallBuffer ( pBuf );
}
else if ( bufSize == bufferFactory.largeBufferSize () ) {
bufferFactory.destroyLargeBuffer ( pBuf );
}
else {
::operator delete ( pBuf );
}
}