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// $Id$
#include "ace/Monitor_Control/Windows_Monitor.h"
#if defined (ACE_HAS_WIN32_PDH)
#include "ace/Log_Msg.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE
{
namespace Monitor_Control
{
Windows_Monitor::Windows_Monitor (const ACE_TCHAR *path)
: value_ (0.0)
, path_ (path)
, query_ (0)
, counter_ (0)
, status_ (ERROR_SUCCESS)
{
this->init ();
}
void
Windows_Monitor::update_i (void)
{
PdhCollectQueryData (this->query_);
PDH_FMT_COUNTERVALUE pdh_value;
PdhGetFormattedCounterValue (this->counter_,
PDH_FMT_DOUBLE,
0,
&pdh_value);
this->value_ = pdh_value.doubleValue;
}
void
Windows_Monitor::clear_impl (void)
{
this->init ();
}
void
Windows_Monitor::init (void)
{
/// Create a query and a counter here so it doesn't have
/// to be done with each update.
this->status_ = ACE_TEXT_PdhOpenQuery (0, 0, &this->query_);
if (ERROR_SUCCESS != this->status_)
{
ACE_ERROR ((LM_DEBUG, ACE_TEXT ("PdhOpenQuery failed\n")));
}
this->status_ =
ACE_TEXT_PdhAddCounter (this->query_,
this->path_.c_str (),
0,
&this->counter_);
if (ERROR_SUCCESS != this->status_)
{
ACE_ERROR ((LM_DEBUG,
ACE_TEXT ("PdhAddCounter %s failed\n"),
this->path_.c_str ()));
}
}
}
}
ACE_END_VERSIONED_NAMESPACE_DECL
#endif /* defined (ACE_HAS_WIN32_PDH) */
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