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// $Id$
#include "ace/OS_NS_time.h"
#include "ace/OS_NS_unistd.h"
#include "ace/Log_Msg.h"
#include "Thermometer.h"
#include "Temperature_Monitor2.h"
#include "EMail.h"
// Listing 1 code/ch21
void Temperature_Monitor2::record_temperature (float temp)
{
Name_Binding_Ptr current
(this->naming_context_.fetch ("current"));
if (current.get ())
{
this->naming_context_.rebind ("previous",
current->value ());
}
this->record_history (temp);
this->naming_context_.unbind ("lastFailure");
this->naming_context_.unbind ("lastReset");
this->naming_context_.unbind ("resetCount");
}
// Listing 1
// Listing 2 code/ch21
void Temperature_Monitor2::record_history (float temp)
{
int now = (int)ACE_OS::time ();
this->shared_context_.rebind ("lastUpdate", now);
Name_Binding_Ptr counter
(this->shared_context_.fetch ("counter"));
int counterValue = counter.get () ? counter->int_value () : 0;
char name[BUFSIZ];
ACE_OS::sprintf (name, "history[%d]", counterValue);
char value[BUFSIZ];
ACE_OS::sprintf (value, "%d|%.2f", now, temp);
this->shared_context_.rebind (name, value);
counterValue = ++counterValue % this->opt_.history_size ();
this->shared_context_.rebind ("counter", counterValue);
}
// Listing 2
void Temperature_Monitor2::reset_device (Name_Binding_Ptr &resetCount)
{
int number_of_resets = 1;
if (resetCount.get ())
{
number_of_resets = resetCount->int_value () + 1;
if (number_of_resets > this->opt_.excessive_resets ())
{
EMail notification;
char message[BUFSIZ];
ACE_OS::sprintf (message,
"Thermometer: %s\n"
"Reset Count: %d\n",
this->thermometer_->address (),
number_of_resets);
notification.send (this->opt_.admin_email (),
this->opt_.email_from (),
"Excessive number of thermometer resets",
message);
}
}
this->thermometer_->reset ();
this->naming_context_.rebind ("lastReset", (int)ACE_OS::time ());
this->naming_context_.rebind ("resetCount", number_of_resets);
}
void Temperature_Monitor2::record_failure (void)
{
Name_Binding_Ptr lastFailure (this->naming_context_.fetch ("lastFailure"));
Name_Binding_Ptr lastReset (this->naming_context_.fetch ("lastReset"));
Name_Binding_Ptr resetCount (this->naming_context_.fetch ("resetCount"));
int now = ACE_OS::time ();
int lastFailureTime;
int lastResetTime = 0;
if (lastFailure.get ())
{
lastFailureTime = lastFailure->int_value ();
}
else
{
this->naming_context_.rebind ("firstFailure", now);
this->naming_context_.rebind ("lastReset", now);
lastFailureTime = now;
lastResetTime = now;
}
if (lastReset.get ())
{
lastResetTime = lastReset->int_value ();
}
if (now - lastResetTime > this->opt_.reset_interval ())
{
this->reset_device (resetCount);
}
this->naming_context_.rebind ("lastFailure", now);
}
void Temperature_Monitor2::monitor (void)
{
this->thermometer_ = new Thermometer (this->opt_.thermometer_address ());
for (;;)
{
float temp = this->thermometer_->temperature ();
ACE_DEBUG ((LM_INFO, ACE_TEXT ("Read temperature %.2f\n"), temp));
if (temp >= 0)
{
this->record_temperature (temp);
}
else
{
this->record_failure ();
}
ACE_OS::sleep (this->opt_.poll_interval ());
}
delete this->thermometer_;
}
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