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// $Id: cpu_load.cpp 82330 2008-07-15 17:30:06Z parsons $
#include "ace/OS_NS_unistd.h"
#include "ace/Monitor_Control/Monitor_Control.h"
#include "examples/Monitor/MC_Test_Utilities.h"
#if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
/// Subclass of ACE_Task_Base, meaning that the override of
/// the svc() method below will run in a new thread when
/// activate() is called on a class instance.
class Monitor_Checker : public ACE_Task_Base
{
public:
int svc (void)
{
/// Get an instance of the MC service singleton.
MC_ADMINMANAGER* mgr =
ACE_Dynamic_Service<MC_ADMINMANAGER>::instance ("MC_ADMINMANAGER");
/// Call on the administrator class to look up the desired monitors.
ACE::Monitor_Control::Monitor_Base *cpu_monitor =
mgr->admin ().monitor_point ("OS/Processor/CPULoad");
if (cpu_monitor != 0)
{
/// Query each monitor for its data every 2 seconds, and call the
/// appropriate display function.
for (int i = 0; i < 10; ++i)
{
ACE_OS::sleep (2);
Monitor_Control_Types::Data data (cpu_monitor->type ());
cpu_monitor->retrieve (data);
MC_Test_Utilities::display_cpu_load (data);
}
cpu_monitor->remove_ref ();
}
return 0;
}
};
#endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
int
ACE_TMAIN (int /* argc */, ACE_TCHAR * /* argv */ [])
{
#if defined (ACE_HAS_MONITOR_FRAMEWORK) && (ACE_HAS_MONITOR_FRAMEWORK == 1)
/// The Admin class will own the reactor and destroy it. We are
/// passing a vanilla reactor to show how it works, but in real
/// life it could be some specialized reactor.
ACE_Reactor new_reactor;
MC_ADMINMANAGER* mgr =
ACE_Dynamic_Service<MC_ADMINMANAGER>::instance ("MC_ADMINMANAGER");
mgr->admin ().reactor (&new_reactor);
/// Set the timer for CPU load check at 2 sec.
Monitor_Base *cpu_monitor =
create_os_monitor<CPU_LOAD_MONITOR> (0, ACE_Time_Value (2));
/// Runs the reactor's event loop in a separate thread so the timer(s)
/// can run concurrently with the application.
START_PERIODIC_MONITORS;
/// Run the monitor checker in a separate thread.
Monitor_Checker monitor_checker;
monitor_checker.activate ();
/// Make sure the monitor checker is spawned before doing anything.
ACE_OS::sleep (1);
for (int i = 0; i < 10; ++i)
{
/// Alternate between letting the CPU sleep and keeping it
/// busy.
if (i % 2 == 0)
{
ACE_OS::sleep (1);
}
else
{
for (unsigned long j = 0; j < 5050505; j++)
{
(void) ACE::gcd (2419233733UL, 567715713UL);
}
}
}
/// End the reactor's event loop, stopping the timer(s).
STOP_PERIODIC_MONITORS;
cpu_monitor->remove_ref ();
#endif /* ACE_HAS_MONITOR_FRAMEWORK==1 */
return 0;
}
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