Mongoose UART lib does not support 'peek'

General
#1
  1. My goal is to port Arduino Serial interface to Mongoose OS
  2. I have successfully wrapped mongoose mgos_uart.h methods into Serial class, but
  3. I could not find an equivalent of ‘peek’ (read next character without actually taking it off the queue).
  4. Is that by design or an omission?
#2

Long time I don’t check the UART functions but I sort of remember it being more of a “stream oriented” implementation where you actually get a bunch of chars either when the buffer has been filled or after some silent time. This is more in line with hardware FIFOs (and DMA) being present in recent (32-bit) microcontrollers.
Just 2 cents.