Hi all,
I am just curious to understand how poll,epoll,select works. After
going through kernel source code.This is
what I understand,Please correct me if I am wrong :
A task can be added to multiple wait queues and later a wake up on any
of wait queue will wake up the task.This is done do_select function
which first sets the task state to TASK_INTERRUPTIBLE and then call each
filp->poll function
which inturn calls poll_wait (which adds the task in a waitqueue )
---pgssgp
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