Re: [boost] C++ Deflate (zlib-like) library

Domen Vrankar wrote:

On Tue, Mar 10, 2020, 4:51 PM Phil Endecott via Boost wrote:

...

I suspect that for things like streaming compression and encryption APIs, in a couple of years we'll all agree that the right way to do them will be as co-routines.

co-routines only add overhead in cases that are processing intensive and run on the local CPU. they are meant for tasks where you wait for the result and CPU can use that thread for something else in the meantime.

Not true - think of generators, for example. You increase performance when something has to pause in the middle - for example a compression function that needs more input or fills its output - and the paused state is more efficiently represented by its stack frame than by an explicit state object. Everyone will understand this better in a couple of years when we have implementations to play with. (I feel old; I've just realised that the last time I used co-routines was with Modula-2 in about 1987!) Regards, Phil.