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368b3b3 Jul 23, 2012
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It's an asymmetric coroutine library (like lua).

You can use coroutine_open to open a schedule first, and then create coroutine in that schedule.

You should call coroutine_resume in the thread that you call coroutine_open, and you can't call it in a coroutine in the same schedule.

Coroutines in the same schedule share the stack , so you can create many coroutines without worry about memory.

But switching context will copy the stack the coroutine used.

Read source for detail.

Chinese blog : http://blog.codingnow.com/2012/07/c_coroutine.html