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Re: would a mutex_wait be useful?
On Nov 4, 2008, at 3:50 AM, Mindaugas Rasiukevicius wrote:
Matt Thomas <matt%3am-software.com@localhost> wrote:
I'd like to be able to do a mutex_enter(9) which could be
If interrupted, it would return the error why it was interrupted.
Where/when do you need interruptible mutex?
I was replacing code in arm32/mem.c with a home grown lock with
Relatively easy to do except it no longer does PCATCH.
Maybe called int mutex_wait(kmutex_t *mtx, int ticks); and if
ticks == 0
becomes (mutex_tryenter(mtx) ? 0 : ETIMEOUT). If tick == -1, means
mutex_wait would use PCATCH for its sleeps and return EINTR if a
That does not sound like a good API. If specific synchronisation is
I think wrappers with mutex_tryenter() could be used for that.
Not easily. And rolling your own seems wrong. Hence the proposal
for a common
method to do it.
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