Caché ObjectScript Reference - InterSystems Documentation

ParametersnThe boolean switch that controls read line recall mode.$ZUTIL(68,15)01Disables read line recall mode.Enables read line recall mode. The system default setting is 1.See Also• $ZUTIL(69,11) Read Line Recall Mode System Default function• Terminal I/O in Caché I/O Device Guide$ZUTIL(68,15)Enables or disables I/O device disconnect detection for the current process.$ZUTIL(68,15,n)$ZU(68,15,n)ParametersnThe boolean value that specifies whether Caché detects I/O disconnection.DescriptionThe $ZUTIL(68,15) function determines how Caché responds to the disconnection of theprincipal I/O device being accessed from the current process. When set to 1, the processreceives a error when a disconnect is detected during a Caché ObjectScript READor WRITE command to the device. This is known as “error on disconnect.” When set to 0,the process exits without reporting an error to the application when a disconnect is detected.The default is 0.You should be aware that when error on disconnect is enabled, a process continues to executeafter its principal device has been disconnected. It is the responsibility of the application todetect the disconnect condition and exit gracefully. Use care when enabling error on disconnect.The application must be prepared to recognize the error and handle it appropriatelyin error traps.Caché ObjectScript Reference 607