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* Copyright (c) 2012, OpenGeoSys Community (http://www.opengeosys.org)
* Distributed under a Modified BSD License.
* See accompanying file LICENSE.txt or
* http://www.opengeosys.com/LICENSE.txt
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*/
#include "MemWatch.h"
#ifndef WIN32
namespace BaseLib {
MemWatch::MemWatch ()
{
updateMemUsage ();
}
unsigned MemWatch::updateMemUsage ()
{
std::string fname ("/proc/");
std::stringstream str_pid;
str_pid << (unsigned) getpid();
fname += str_pid.str();
fname += "/statm";
unsigned pages;
std::ifstream in (fname.c_str(), std::ios::in);
if (in == NULL) {
perror( "open" );
return 1;
}
in >> pages;
_vmem_size = ((unsigned long) pages) * ((unsigned long) getpagesize());
in >> pages;
_rmem_size = ((unsigned long) pages) * ((unsigned long) getpagesize());
in >> pages;
_smem_size = ((unsigned long) pages) * ((unsigned long) getpagesize());
in >> pages;
_cmem_size = ((unsigned long) pages) * ((unsigned long) getpagesize());
in.close ();
return 0;
}
unsigned long MemWatch::getVirtMemUsage ()
{
updateMemUsage ();
return _vmem_size;
}
unsigned long MemWatch::getResMemUsage () {
updateMemUsage ();
return _rmem_size;
}
unsigned long MemWatch::getShrMemUsage () {
updateMemUsage ();
return _smem_size;
}
unsigned long MemWatch::getCodeMemUsage () {
updateMemUsage ();
return _cmem_size;
}
} // end namespace BaseLib
#endif // WIN