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Function tsk_lock will ban RTX kernel timer interrupt, thus the task switching is prohibited.

Time:12-06

Recently in RTX system, have so a word, and not very understanding,
I remember ucos system, in addition to task switching timer interrupt, blocking and events, such as request semaphore, news and so on can undertake task switching, don't have to wait for a switch to interrupt time,
RTX is not like this? Function tsk_lock executed, meet request semaphore, news, etc., also performs tasks switch?
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