urbackup_backend/fileservplugin/bufmgr.cpp
2014-02-22 15:22:42 +01:00

79 lines
1.8 KiB
C++

/*************************************************************************
* UrBackup - Client/Server backup system
* Copyright (C) 2011-2014 Martin Raiber
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
**************************************************************************/
#include "../vld.h"
#include "bufmgr.h"
#include "log.h"
CBufMgr::CBufMgr(unsigned int nbuf, unsigned int bsize)
{
for(unsigned int i=0;i<nbuf;++i)
{
SBuffer buf;
buf.buffer=new char[bsize+1];
buf.used=false;
buffers.push_back( buf );
}
freebufs=nbuf;
}
CBufMgr::~CBufMgr(void)
{
for(size_t i=0;i<buffers.size();++i)
{
if( buffers[i].used==true )
{
Log("Warning: Deleting used Buffer!");
}
delete[] buffers[i].buffer;
}
}
char* CBufMgr::getBuffer(void)
{
for(size_t i=0;i<buffers.size();++i)
{
if( buffers[i].used==false )
{
buffers[i].used=true;
--freebufs;
return buffers[i].buffer;
}
}
return NULL;
}
void CBufMgr::releaseBuffer(char* buf)
{
for(size_t i=0;i<buffers.size();++i)
{
if( buffers[i].buffer==buf )
{
++freebufs;
buffers[i].used=false;
return;
}
}
Log("Warning: Buffer to free not found!");
}
unsigned int CBufMgr::nfreeBufffer(void)
{
return freebufs;
}