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// $Id$
//==========================================================================
/// The RSS Monitor class defination
/**
* @file CIAO_Monitor.cpp
*
* @brief The Monitor class defination
*
* @author Nilabja Roy <nilabjar@dre.vanderbilt.edu>
*/
//==========================================================================
#include "CIAO_Monitor.h"
#include "CIAO_common.h"
#include "ace/OS_NS_stdio.h"
#include "ace/Log_Msg.h"
#include <string>
#include <fstream>
using namespace std;
extern "C" ACE_Proper_Export_Flag CIAO::MonitorBase * CIAO::createMonitor ()
{
CIAO::CIAO_Monitor* monitor = 0;
ACE_NEW_RETURN (monitor, CIAO::CIAO_Monitor, 0);
return monitor;
}
CIAO::CIAO_Monitor::CIAO_Monitor ()
{
previous_.user_cpu = 0;
previous_.user_cpu_low = 0;
previous_.system_cpu = 0;
previous_.idle_time = 0;
previous_.total_load = 0;
}
/// The Desctructor
CIAO::CIAO_Monitor::~CIAO_Monitor ()
{
}
int CIAO::CIAO_Monitor::initialize_params (
::Deployment::Domain& domain,
int interval
)
{
current_domain_.reset (new ::Deployment::Domain (domain));
this->interval_=interval;
return 0;
}
int CIAO::CIAO_Monitor::start (CORBA::ORB_ptr)
{
return 0;
}
int CIAO::CIAO_Monitor::stop ()
{
return 0;
}
::Deployment::Domain* CIAO::CIAO_Monitor::get_current_data ()
{
if (CIAO::debug_level () > 9)
{
// ACE_DEBUG ((LM_DEBUG ,
// "CIAO_Monitor::Inside the get_current_data of[%s]\n",
// current_domain_->node[0].name.in ()));
}
CORBA::Double current_load = calculate_load ();
CORBA::Any any;
any <<= current_load;
// ACE_DEBUG ((LM_DEBUG, "(%P) CIAO_Monitor::get_current_data [%s]:"
// " :-The current load is %f\n",
// current_domain_->node[0].name.in (),
// current_load));
// here insert the util value, in the right position
for (unsigned int i = 0;
i < current_domain_->node[0].resource.length ();
i++)
{
if (!ACE_OS::strcmp (current_domain_->node[0].resource[i].name, "Processor"))
{
for (unsigned int j = 0;
j < current_domain_->node[0].resource[i].property.length ();
j++)
{
if (!ACE_OS::strcmp (
current_domain_
->node[0].resource[i].property[j].name.in (),
"Current"))
{
current_domain_->node[0].resource[i].property[j].kind =
::Deployment::Quantity;
current_domain_->node[0].resource[i].property[j].value =
any;
}
}
}
}
return current_domain_.get ();
}
void CIAO::CIAO_Monitor::set_context (MonitorController* context)
{
this->controller_ = context;
}
double CIAO::CIAO_Monitor::calculate_load ()
{
ifstream res_file;
res_file.open ("/proc/stat");
string cpu; // for getting the cpu value
res_file >> cpu;
res_file >> current_.user_cpu;
res_file >> current_.user_cpu_low;
res_file >> current_.system_cpu;
res_file >> current_.idle_time;
res_file.close ();
current_.total_load = current_.user_cpu + current_.user_cpu_low +
current_.system_cpu + current_.idle_time;
double load = current_.total_load - previous_.total_load;
// double user_current_load = (current_.user_cpu - previous_.user_cpu)/load;
// double system_current_load = (current_.system_cpu - previous_.system_cpu)/load;
double delta_idle = current_.idle_time - previous_.idle_time;
double cpu_load = 1.0 - (delta_idle / load);
previous_ = current_;
return cpu_load;
}
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