Table 26.1. No events are being received
| Possible Issue | Resolution |
|---|---|
| Receive channel is not open | Launch Storyboard engine with verbosity (-v) and you see
the following warning on sending an event WARN
[0.135]:Can't open greio channel channel_name , then
the channel is not open. If receiver is in C code ensure the
gre_io_open returned successfully. If communicating with another
Storyboard application ensure the receiving application was
launched with the expected channel name specified with command
line parameter -ogreio,channel=channel_name
|
| Channel name mismatch | If there is a mismatch on channel name you will not receive
messages. One way to verify is to stop the receiver and use
utility iorcv. Just launch iorcv with the same channel name as
your receiver: ./iorcv [-s] channel_name |
| System Permissions | On some systems, system permissions can block the IO communications. Try running with administrator privileges, if the above steps have not resolved the issue. You can use iogen and iorcv to verify permissions. |
Table 26.2. A particular event is not being received
| Possible Issue | Resolution |
|---|---|
| event not sent | Launch Storyboard Engine with verbosity level 4 (-vvvv). Verify in the log that the action or Lua code to trigger the event was executed. If you see WARN [0.135]:Can't open greio channel and you have already verified channel is open, then verify the channel name is correct in send event call |
| Event not received | Most common scenario is a event name mismatch. Using iorcv you can verify the name that is being sent, ensure it matches what the receiver expects. |
Table 26.3. Event data not correct
| Possible Issue | Resolution |
|---|---|
| Format string not correct | If the data values are not received as expected it likely the format string either does not match the data. Ensure the format size matches the size of the data. If specifying a name to the parameter ensure the names are the same. |
| Data not aligned. | Data must be aligned to system data alignment. Particular problem sizes are 1u1, 1s1, 1s0 (strings). Data must be sent in order of descending alignment requirements. Example: 4u1 4u1 2u1 1s0 is good, 2u1 4u1 4u1 1s0 is not |
Table 26.4. The trouble shooting steps for egress Storyboard apply in this scenario, so see the above steps.
| Issue | Resolution |
|---|---|
| Event not received | Launch Storyboard Engine with verbosity level 4 (-vvvv) you
will see the following event trace if successful.
EVENT [111.811]:GREIO received event
[MilleniumFalconSpeed] 2 bytes EVENT [111.811]:IO: Queue
[1] MilleniumFalconSpeed EVENT [111.811]:IO: Dispatch
[MilleniumFalconSpeed] ACTION [111.811]:ACTION: Invoke
[MilleniumFalconSpeed]->[gra.lua] on app [app]
If the last two messages are not displayed Storyboard
received the event but could not find a handler for the
event. |