// Temperature_Monitor.cpp,v 1.3 2004/01/08 16:56:11 shuston Exp #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 = 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 ()); } delete this->thermometer_; } // Listing 2