OPeNDAP Hyrax Back End Server (BES)
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BESMemoryGlobalArea.h
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// BESMemoryGlobalArea.h
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// This file is part of bes, A C++ back-end server implementation framework
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// for the OPeNDAP Data Access Protocol.
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// Copyright (c) 2004-2009 University Corporation for Atmospheric Research
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// Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// You can contact University Corporation for Atmospheric Research at
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// 3080 Center Green Drive, Boulder, CO 80301
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// (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
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// Please read the full copyright statement in the file COPYRIGHT_UCAR.
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//
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// Authors:
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// pwest Patrick West <pwest@ucar.edu>
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// jgarcia Jose Garcia <jgarcia@ucar.edu>
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#ifndef BESMemoryGlobalArea_h_
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#define BESMemoryGlobalArea_h_ 1
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#include <sys/resource.h>
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#include "
BESObj.h
"
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#define MEGABYTE 1024*1024
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class
BESMemoryGlobalArea
:
public
BESObj
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{
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struct
rlimit limit ;
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static
unsigned
long
_size ;
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static
int
_counter ;
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static
void
*_buffer ;
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unsigned
long
megabytes(
unsigned
int
s )
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{
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return
s*
MEGABYTE
;
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}
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void
log_limits(
const
string
&msg ) ;
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public
:
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BESMemoryGlobalArea
() ;
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~BESMemoryGlobalArea
() ;
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void
release_memory
() ;
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bool
reclaim_memory
() ;
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unsigned
long
SizeOfEmergencyPool
() {
return
_size; }
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virtual
void
dump
( ostream &strm )
const
;
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};
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#endif // BESMemoryGlobalArea_h_
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dispatch
BESMemoryGlobalArea.h
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