Christopher Pascoe bc9493e690 Remove tracking of whether write() was called. ...

Tracking _written was required on AVR devices to work around a hardware
limitation when implementing flush().  The ESP8266 doesn't have the same
issue, so we can remove the tracking and make write() more lightweight.

The cost is a minor increase in work done in flush() when write() was not
previously called, but this should be much rarer than individual character
writes.

2015-12-29 12:46:25 -05:00

..

esp8266

Remove tracking of whether write() was called.

2015-12-29 12:46:25 -05:00