On 06/21/2018 10:17 AM, Jarkko Sakkinen wrote: > On Tue, Jun 19, 2018 at 05:45:35PM -0700, Tadeusz Struk wrote: >> Hi Jarkko, >> Thanks for reviewing the patch. >> There are applications/frameworks where a worker thread is not an option. >> Take for example the IoT use-cases and frameworks like IoT.js, or "Node.js for IoT". >> They are all single threaded, event-driven frameworks, using non-blocking I/O as the base of their processing model. >> Similarly embedded applications, which are basically just a single threaded event loop, quite often don't use threads because of resources constrains. >> >> If your concern is that user space will not adopt to this, I can say that TSS library [1] is currently blocked on this feature, and we can not enable some of the use-cases mentioned above because of this. >> >> Thanks, >> Tadeusz >> >> [1] https://github.com/tpm2-software/tpm2-tss > > I put this into "mathematical" terms. TPM is by nature is blocking. It > does not scale this way so you are essentially just simulating > non-blocking behaviour. > That is correct, and this is exactly why we need this. Thanks, -- Tadeusz