sergiotarxz/nuttx
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

Update TODO list

Browse Source
This commit is contained in:
Gregory Nutt 2015-12-30 15:26:30 -06:00
parent c1fff4706c
commit c33724fc93
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
TODO
View File

@ -340,10 +340,17 @@ o Signals (sched/signal, arch/)
embedded system.
Title: SIGEV_THREAD
Description: Implementation of support for support for SIGEV_THREAD is incomplete;
The internal OS functin sig_notification has not been implemented (and
will be tricky!). There are also some unimplemented function call logic
in libc/aio
Description: Implementation of support for support for SIGEV_THREAD is available
only in the FLAT build mode because it uses the OS work queues to
perform the callback. The alternative for the PROTECTED and KERNEL
builds would be to create pthreads in the user space to perform the
callbacks. That is not a very attractive solution due to performance
issues. It would also require some additional logic to specify the
TCB of the parent so that the pthread could be bound to the correct
group.
There is also some user-space logic in libc/aio/lio_listio.c. That
logic could use the user-space work queue for the callbacks.
Status: Low, there are alternative designs. However, these features
are required by the POSIX standard.
Priority: Low for now