lwIP - A Lightweight TCP/IP stack - Bugs: bug #55598, Clean shutdown and restart support
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bug #55598: Clean shutdown and restart support
Submitter: | Ben Schwartz <bemasc> | ||
Submitted: | Tue 29 Jan 2019 02:43:23 AM UTC | ||
Votes: | 35 | ||
Category: | None | Severity: | 3 - Normal |
Item Group: | Feature Request | Status: | None |
Privacy: | Public | Assigned to: | None |
Open/Closed: | Open | Planned Release: | None |
lwIP version: | git head |
Wed 18 May 2022 04:59:56 PM UTC, comment #4: |
Craig Broadbooks <cbroadbo> |
Fri 21 Feb 2020 04:59:09 PM UTC, comment #3: Hmm, so as a start, we'd need a message to make tcpip_thread stop? That should not be too hard.
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Simon Goldschmidt <goldsimon> |
Fri 21 Feb 2020 01:41:48 AM UTC, comment #2: I also would like to see this change. Even if it was an optional configuration. An example is we can run our application on real embedded hardware or on Windows/Linux using the tap interface. When on the PC, the code needs to be able to exit the application and shut down. Asan always complains about the tcpip thread memory not deallocated at shutdown, but that seem to be all that is left after closing sockets and network interfaces etc. I guess all services would need a de-init function as well. |
Ashley Duncan <ashesman> |
Wed 30 Jan 2019 01:30:02 AM UTC, comment #1: I second Ben's request. There usage scenarios that call for re-init lwIP or even just shut it down. Currently that is not possible because there is no way to exit from tcpip_thread. |
Jose Simoes <jassimoes> |
Tue 29 Jan 2019 02:43:23 AM UTC, original submission:
Currently, lwip does not offer cleanup functionality, so once it is initialized, it must remain initialized until the process terminates. This helps keep lwip lightweight and simple, and works well in embedded environments that start lwip at boot, but it does not always work well for other use cases, such as libraries that offer functionality backed by lwip.
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Ben Schwartz <bemasc> |
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Follow 3 latest changes.
Date | Changed by | Updated Field | Previous Value | => | Replaced by |
---|---|---|---|---|---|
2021-06-07 | rdiez | Carbon-Copy | - | Added rdiez | |
2020-01-20 | bkausbk | Carbon-Copy | - | Added bkausbk | |
2019-01-30 | jassimoes | Carbon-Copy | - | Added jassimoes |
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Corresponding source code
+1 for this feature. I'm running lwIP with MQTT on iOS devices and it would be very helpful to cleanup / restart lwIP/TCP/MQTT. I understand that keeping things simple and lightweight is a goal, but this sort of functionality would be stripped out by the linker when not used(hopefully) so I don't really see it bloating the footprint much, if at all.