Flow control.


Wait until an event occurs. The task can be unlocked by means of the command “OPH_INPUT”.


  • type : waiting type. Use: “clock” for fixed time; “input” to ask to input data and set a new “value” for “key”; “file” to check the existence of a file.
  • timeout : according to the value of parameter “timeout_type”, it is the duration (in seconds) or the end instant of the waiting interval. In the second case use one of the following date formats:
    • yyyy
    • yyyy-mm
    • yyyy-mm-dd
    • yyyy-mm-dd hh
    • yyyy-mm-dd hh:mm
    • yyyy-mm-dd hh:mm:ss The operator will convert the date into the number of seconds elapsed since the Epoch, 1970-01-01 00:00:00 +0000 (UTC). If the value is negative then waiting time is infinity (default).
  • timeout_type : meaning the value of “timeout”. Use: “duration” to set the duration of waiting interval; “deadline” to set the end time instant of waiting interval.
  • key : name of the parameter. It should comply with IEEE Std 1003.1-2001 conventions, unless brackets {} are adopted to refer it. More keys are allowed.
  • value : value of the parameter. It can be accessed with @key or @{key}. More values are allowed, one for each key.
  • filename : name of the file to be checked (only for type “file”); base folder to refer files is BASE_SRC_PATH (see oph_configuration for additional information).
  • message : this user-defined message is appended to response in order to notify the waiting reason.
  • run : set to yes (default) to wait effectively


Wait for 200 seconds:

[OPH_TERM] >>  oph_wait timeout=200;


Argument name Type Mandatory Values Default Min/Max-value
type “string” “no” “clock|input|file” “clock”  
timeout “int” “no”   “-1”  
timeout_type “string” “no” “duration|deadline” “duration”  
key “string” “no”   “-“  
value “string” “no”   “-“  
filename “string” “no”   “-“  
message “string” “no”   “-“  
run “string” “no” “yes|no” “yes”