Async backend configuration module.
This module provides the async backend configuration and exports the appropriate async framework (asyncdispatch or chronos) based on compile-time flags.
Consts
asyncBackend {.strdefine.} = "none"
hasAsyncDispatch = true
hasAsyncSupport = true
hasChronos = false
Templates
template registerFD(fd: AsyncFD): untyped
template sleepMs(ms: int): untyped
template unregisterFD(fd: AsyncFD): untyped