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Add an idea of chopstx_critical.

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Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
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NIIBE Yutaka
2019-11-22 08:51:21 +09:00
parent b17834876f
commit 2841efd9e5
1 changed files with 9 additions and 5 deletions
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14
NEWS
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@@ -7,11 +7,15 @@ NEWS - Noteworthy changes
We used to have (an experimental) feature of higher priority of thread We used to have (an experimental) feature of higher priority of thread
(>= CHOPSTX_PRIO_INHIBIT_PREEMPTION). The feature offered: When a (>= CHOPSTX_PRIO_INHIBIT_PREEMPTION). The feature offered: When a
thread has such a priority, Chostx guarantees that it keeps running thread has such a priority, Chostx guarantees that it keeps running
and no other threads can preempt the thread until the thread and no other threads can preempt the thread. I had introduced this
voluntarily leaves running. I had introduced this (questionable) (questionable) feature as an excuse against no support of
feature as an excuse against no support of masking/unmasking interrupt masking/unmasking interrupt API. From the experience of Chopstx, it
API. From the experience of Chopstx, it is rather consistent to is rather consistent to remove this feature. It was over engineering
remove this feature. to support a thread having such a special priority.
** New feature
chopstx_critical (void *func (*), *arg)
Let run FUNC with ARG, under CPU scheduler lock (== no preemption).
* Major changes in Chopstx 1.17 * Major changes in Chopstx 1.17