RT-Thread / RT-Thread/rt-thread
[ipc] mutex take 被 signal 中断后没有正确返回错误
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Description
问题
mtuex 在 suspend 之前没有重置 thread->error 导致被信号中断后没有正确得到反馈。
https://github.com/RT-Thread/rt-thread/blob/a6fcb4f8a13709e836b9133a08d573fc0dfd398a/src/ipc.c#L1246
参考 sem 的方式如下：
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Research direction
Read src/ipc.c around line 1246 and compare the mutex path with the semaphore handling at lines 548-554. Verify how thread->error is handled when mutex acquisition is suspended and then interrupted by a signal; done means the mutex operation returns the correct error in that case.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- c
- Domain
- embedded-iot, operating-systems
- Issue type
- Bug
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 50/100