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// $Id$
//----------------------------------------------------------------------------------
/**
* @file MonitorController.cpp
*
* @brief The Monitor Controller implementation.
*
* This is the facade class for Monitor
*
* @author Nilabja Roy <nilabjar@dre.vanderbilt.edu>
*/
//----------------------------------------------------------------------------------
#include "MonitorController.h"
#include "BaseMonitor.h"
#include "MonitorCB.h"
#include "CIAO_common.h"
#include "ace/Log_Msg.h"
#include "ace/DLL.h"
#include "ace/SString.h"
#include "NodeManager_Impl.h"
namespace CIAO
{
typedef MonitorBase* (*MonitorFactory) (void);
/// for the CIAO monitor
const char* monitor_lib_name = "ciaomonlib";
// The interval after which update will be sent.
// This value will sent by the EM in the later implementation
const int interval = 10;
static const char* factory_func = "createMonitor";
}
CIAO::MonitorController::MonitorController (
::CORBA::ORB_ptr orb,
::Deployment::Domain& domain,
::Deployment::TargetManager_ptr target,
::CIAO::NodeManager_Impl_Base* node_mgr
)
: target_facet_i_ (::Deployment::TargetManager::_duplicate (target)),
terminate_flag_ (0),
orb_ (orb),
initial_domain_ (domain),
node_mgr_ (node_mgr),
monitor_cpu_usage_ (false),
add_component_pid_ (true)
{
}
int
CIAO::MonitorController::svc (void)
{
// @todo. Investigate whether we can't use the reactor with a timer
// eventhandler for this monitor controller, would safe us a thread
ACE_DLL dll;
// Forming the library name.
ACE_CString lib_name = ACE_DLL_PREFIX;
lib_name += monitor_lib_name;
int retval = dll.open (lib_name.c_str ());
if (retval != 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.open"),
-1);
}
// Cast the void* to non-pointer type first - it's not legal to
// cast a pointer-to-object directly to a pointer-to-function.
void *void_ptr = dll.symbol (factory_func);
ptrdiff_t tmp = reinterpret_cast<ptrdiff_t> (void_ptr);
MonitorFactory factory = reinterpret_cast<MonitorFactory> (tmp);
if (factory == 0)
{
ACE_ERROR_RETURN ((LM_ERROR,
"%p",
"dll.symbol"),
-1);
}
{
ACE_TRACE ((LM_DEBUG, "Inside the init call\n"));
// Creating the monitor object.
monitor_.reset ((MonitorBase*) factory ());
monitor_->initialize_params (initial_domain_,
target_facet_i_.in (),
interval);
// Start the Monitor.
monitor_->start (orb_);
auto_ptr <CIAO::MonitorCB> monitor_callback (new CIAO::MonitorCB (orb_,
target_facet_i_.in (),
interval));
// check if cpu needs to be monitored or not
for (unsigned int i = 0;i < initial_domain_.node[0].resource.length ();i++)
{
if (!strcmp (initial_domain_.node[0].resource[i].name, "Processor"))
monitor_cpu_usage_ = true;
}
// Wait for system to stabilize itself
ACE_OS::sleep (interval);
// The loop in which UpdateData is called
while (!terminating ())
{
//ACE_DEBUG ((LM_DEBUG , "=The Terminate is %d\n", terminate_flag_));
// if monitoring of cpu is enable , monitor , else dont do
// anything
::Deployment::Domain* domain = 0;
if (monitor_cpu_usage_)
domain = monitor_->get_current_data ();
else
domain = &initial_domain_;
// ****** add component data *******************
NodeManager_Impl_Base::Component_Ids cids =
node_mgr_->get_component_detail ();
// Here save the old resource length
int counter = domain->node[0].resource.length ();
// if pid is already added , dont add
if (add_component_pid_)
{
// then add more resource element to the
// domain structure
// ACE_DEBUG ((LM_DEBUG , "Going to add CID/PID data\n"));
int new_res_size = domain->node[0].resource.length () +
cids.cid_seq_.size ();
domain->node[0].resource.length (new_res_size);
ACE_Unbounded_Set_Iterator<ACE_CString> iter (cids.cid_seq_);
for (iter = cids.cid_seq_.begin ();
iter != cids.cid_seq_.end ();
iter++,counter++)
{
domain->node[0].resource[counter].name =
CORBA::string_dup ("Component");
domain->node[0].resource[counter].resourceType.length (0);
// Have one property for now
domain->node[0].resource[counter].property.length (1);
domain->node[0].resource[counter].property[0].name =
CORBA::string_dup ((*iter).c_str ());
domain->node[0].resource[counter].property[0].kind =
::Deployment::Quantity;
domain->node[0].resource[counter].property[0].dynamic =
0;
domain->node[0].resource[counter].property[0].value <<=
CORBA::Long (cids.process_id_);
// ACE_DEBUG ((LM_DEBUG , "The process id is [%d]\n",
// CORBA::Long (cids.process_id_)));
}
// set the add_component_pid_ to 0
add_component_pid_ = false;
}
//******add compoennt data
monitor_callback->update_data (*domain);
// data will be updated in intervals of 10 secs.
// in the latest version of spec , this value will
// come from Execution Manager
ACE_OS::sleep (interval);
}
monitor_->stop ();
}
// here delete the monitor object before
// unloading the library
monitor_.reset ();
// unload the library
dll.close ();
if (CIAO::debug_level () > 9)
{
ACE_DEBUG ((LM_DEBUG , "CIAO::Monitor::Terminating Monitor\n"));
}
return 0;
}
CIAO::MonitorController::~MonitorController ()
{
terminate ();
wait ();
}
void
CIAO::MonitorController::terminate ()
{
// make the terminate flag false
ACE_GUARD (ACE_SYNCH_MUTEX,
guard,
lock_);
terminate_flag_ = true;
}
bool
CIAO::MonitorController::terminating ()
{
ACE_GUARD_RETURN (ACE_SYNCH_MUTEX,
guard,
lock_,
0);
return terminate_flag_;
}
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