[INSTRM-1589] Run temperature device queries in threads Created: 28/Apr/22 Updated: 28/Apr/22 Resolved: 28/Apr/22 |
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| Status: | Done |
| Project: | Instrument control development |
| Component/s: | ics_mebActor |
| Affects Version/s: | None |
| Fix Version/s: | None |
| Type: | Task | Priority: | Normal |
| Reporter: | cloomis | Assignee: | chihyi |
| Resolution: | Done | Votes: | 0 |
| Labels: | None | ||
| Remaining Estimate: | Not Specified | ||
| Time Spent: | Not Specified | ||
| Original Estimate: | Not Specified | ||
| Description |
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The mebActor seems to hang up when the temps device is queried when the temps device is down/unavailable. Sprinkle with threads. |
| Comments |
| Comment by cloomis [ 28/Apr/22 ] |
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Or, of course, just add timeouts. |
| Comment by cloomis [ 28/Apr/22 ] |
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Odd. Added socket timeout. Turns out that the device |
| Comment by cloomis [ 28/Apr/22 ] |
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Merged at b0c596a, tagged 1.1.2. Running at Subaru. The send() fails by blocking about half the time. This fix keeps the actor running, but cannot fix the controller/link problem. Should look carefully at the tcpdump traces, but I have not done so. |
is usually fine, but sometimes the send() system call does not return, even when the socket is new and the buffer must be empty. Odd.