Michael Hunter coder-mike

## io-class-pattern.md

      
        
          
            
              
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                coder-mike
                / io-class-pattern.md
            
            
              Created
              February 21, 2019 22:15
                — forked from phoddie/io-class-pattern.md
            
              
                For Ecma TC53
              
          
        
      
        
  
      
    I/O class pattern

Copyright 2018 Moddable Tech, Inc.

Peter Hoddie

Patrick Soquet

Updated December 17, 2018

Overview

The I/O class pattern is designed to be applied to many different interfaces. These include digital, analog input, SPI, I2C, serial, TCP socket, UDP socket, etc. Each of these defines a class pattern for the interface (e.g. a Digital class pattern) that is a logical subclass of the I/O class pattern.
The I/O class pattern assumes read and write operations will not block for significant periods of time (this is deliberately not quantified). The model for this is non-blocking network sockets.