> Fibers and async/await are backed by the same OS APIs
async/await doesn't require any OS APIs, or even an OS at all.
You can write async rust that runs on a microcontroller and poll a future directly from an interrupt handler.
And there's a huge advantage to doing so, too: you can write out sequences of operations in a straightforward procedural form, and let the compiler do the work of turning that into a state machine with a minimal state representation, rather than doing that manually.
async/await doesn't require any OS APIs, or even an OS at all.
You can write async rust that runs on a microcontroller and poll a future directly from an interrupt handler.
And there's a huge advantage to doing so, too: you can write out sequences of operations in a straightforward procedural form, and let the compiler do the work of turning that into a state machine with a minimal state representation, rather than doing that manually.