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Re: [lwip-users] Wait queue order for mutex, semaphore, mailbox?
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Re: [lwip-users] Wait queue order for mutex, semaphore, mailbox? |
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Thu, 11 Nov 2021 20:16:52 +0100 |
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Am 11.11.2021 um 17:36 schrieb Grant Edwards:
What should the wait queue order be for lwIP mailboxes, mutexes, and
semaphores?
The port I'm trying to fix-up and get running is configuring all for
FIFO wait queues.
I'm not sure I understand your question. Do you mean 'if multiple
threads are waiting, which one gets woken first'? In that case, it's
nothing we as lwIP developers can answer: it's mainly a question of how
you want your system to behave. Using a decent embedded RTOS, I would
say the answer is "the thread with the highest priority should be woken
first", but that's really up to how your OS shall behave.
Regards,
Simon