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Posted to dev@plc4x.apache.org by "splatch (via GitHub)" <gi...@apache.org> on 2023/02/23 15:40:44 UTC
[I] Reorganize timeout handling in plc4j-spi (plc4x)
splatch opened a new issue, #821:
URL: https://github.com/apache/plc4x/issues/821
### What would you like to happen?
The timeout handling in plc4j is affected by its own logic where registered handlers are called only when packets arrive. This means that in some cases, when communication line is broken or simply hanged, timeouts may never be reported back to driver.
There were several attempts to fix that, however none of them have worked. The recent work in #818 shed some light on some of netty utilities which could be wired into the spi to separate timeout handling. Given that our use of netty in plc4j is never ending source of troubles and confusion (it orchestrates a lot!), we may consider introducing new SPI types to hide specifics, even between our own internals.
### Programming Languages
- [X] plc4j
- [ ] plc4go
- [ ] plc4c
- [ ] plc4net
### Protocols
- [ ] AB-Ethernet
- [ ] ADS /AMS
- [ ] BACnet/IP
- [ ] CANopen
- [ ] DeltaV
- [ ] DF1
- [ ] EtherNet/IP
- [ ] Firmata
- [ ] KNXnet/IP
- [ ] Modbus
- [ ] OPC-UA
- [ ] S7
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Re: [I] Reorganize timeout handling in plc4j-spi (plc4x)
Posted by "splatch (via GitHub)" <gi...@apache.org>.
splatch closed issue #821: Reorganize timeout handling in plc4j-spi
URL: https://github.com/apache/plc4x/issues/821
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Re: [I] Reorganize timeout handling in plc4j-spi (plc4x)
Posted by "splatch (via GitHub)" <gi...@apache.org>.
splatch commented on issue #821:
URL: https://github.com/apache/plc4x/issues/821#issuecomment-1614898637
Addressed through #822.
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Re: [I] Reorganize timeout handling in plc4j-spi (plc4x)
Posted by "spnettec (via GitHub)" <gi...@apache.org>.
spnettec commented on issue #821:
URL: https://github.com/apache/plc4x/issues/821#issuecomment-1617077563
Good job. @splatch
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