add basic support a linux-like syscall evendfd
#1052
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To avoid debug messages of unhandled interrupts, a handler for COM1 is registerted.
fine-tuning of the TCP stack and the behavior of the system call `poll`
This was referenced Feb 11, 2024
increasing the event counter blocks, if a overflow is possible
jounathaen
reviewed
Feb 13, 2024
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Can we add some kind of test for this functionality? |
There will be one on the user space side of things. Revamping integration tests in this repo is another thing that I should move up on my list. Then, we could test those things easily here as well: #418 |
if smoltcp leaves the state LISTEN, the poll function returns Poll::Ready. Just to give the user space the option to call accept.
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I merge this PR. Just to release a new abi and to publish some ci test. |
This was referenced Feb 14, 2024
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eventfdcreates an linux-like "eventfd object" that can be used as an event wait/notify mechanism by user-space applications, and by the kernel to notify user-space applications of events. The object contains an unsigned 64-bit integer counter that is maintained by the kernel. This counter is initialized with the value specified in the argumentinitval.As its return value,
eventfdreturns a new file descriptor that can be used to refer to the eventfd object.The following values may be bitwise set in flags to change the behavior of
eventfd:EFD_NONBLOCK: Set the file descriptor in non-blocking modeEFD_SEMAPHORE: Provide semaphore-like semantics for reads from the new file descriptor.In addition, the PR includes some fine-tuning of the IP stack and the behavior of the system call
poll. This should increase the compatibility to Unix.