feat(os): add posix message queue syscalls #1363
Merged
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To solve #1346, I implement
msgget
,msgsnd
,msgrcv
syscalls to fulfill the IPC syscall. To support message queue forQlOsPosix
, I addQlMsq
, a component similar to existingQlShm
.If we want to support semaphore in the future, the code can be refactored to share code for different IPC objects, just as https://elixir.bootlin.com/linux/v5.19.17/source/ipc/util.c did.
Re-implementing syscalls is error-prone, and it is impossible to be exactly same as the original implementation. Simple examples or unit tests can be added to ensure the basic functionality.
Checklist
Which kind of PR do you create?
Coding convention?
Extra tests?
Changelog?
Target branch?
One last thing