threading

[Grant Edwards]

On 2014-04-11, Roy Smith <roy at panix.com> wrote:

> At a high level, threads and coroutines are really very similar.  They 
> are both independent execution paths in the same process.  I guess the 
> only real difference between them is that thread switching is mediated 
> by the operating system, so it can happen anywhere (i.e. at any 
> instruction boundary).

That's only true if your threading system has pre-emption. Python's
does, but not all do. If your threading system is cooperative rather
than preemptive, then using coroutines is completely idential to
threading with 2 threads.

> Coroutines scheduling is handled in user code,

As is cooperative multithreading.

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