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// $Id: Temperature_Monitor.cpp 80826 2008-03-04 14:51:23Z wotte $
#include "ace/OS_NS_time.h"
#include "ace/OS_NS_unistd.h"
#include "ace/Log_Msg.h"
#include "Thermometer.h"
#include "Temperature_Monitor.h"
#include "EMail.h"
// Listing 1 code/ch21
Temperature_Monitor::Temperature_Monitor
(Temperature_Monitor_Options &opt,
Naming_Context &naming_context)
: opt_(opt), naming_context_(naming_context)
{ }
// Listing 1
// Listing 31 code/ch21
void Temperature_Monitor::record_temperature (float temp)
{
Name_Binding_Ptr current
(this->naming_context_.fetch ("current"));
if (current.get())
{
this->naming_context_.rebind ("previous",
current->value ());
}
// Listing 31
// Listing 32 code/ch21
this->naming_context_.rebind ("current", temp);
// Listing 32
// Listing 33 code/ch21
this->naming_context_.unbind ("lastReset");
this->naming_context_.unbind ("resetCount");
// Listing 33
}
// Listing 41 code/ch21
void Temperature_Monitor::record_failure (void)
{
Name_Binding_Ptr lastReset
(this->naming_context_.fetch ("lastReset"));
Name_Binding_Ptr resetCount
(this->naming_context_.fetch ("resetCount"));
// Listing 41
// Listing 42 code/ch21
int now = (int) ACE_OS::time ();
int lastResetTime;
if (lastReset.get ())
{
lastResetTime = lastReset->int_value ();
}
else
{
this->naming_context_.rebind ("lastReset", now);
lastResetTime = now;
}
// Listing 42
// Listing 43 code/ch21
if (now - lastResetTime > this->opt_.reset_interval ())
{
this->reset_device (resetCount);
}
// Listing 43
}
// Listing 5 code/ch21
void
Temperature_Monitor::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 ())
{
// Exclude 5
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);
// Exclude 5
}
}
this->thermometer_->reset ();
this->naming_context_.rebind ("lastReset",
(int) ACE_OS::time ());
this->naming_context_.rebind ("resetCount",
number_of_resets);
}
// Listing 5
// Listing 2 code/ch21
void Temperature_Monitor::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 ());
}
ACE_NOTREACHED (delete this->thermometer_;)
}
// Listing 2
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