DEVFULL

Arduino library for a /dev/full stream.

Description

The experimental library implements a stream class that mimics the /dev/full device of a Linux system. You can write nothing to it as it is always full. Every read data will return the value zero, just like /dev/zero

The 0.1.0 version is a minimal implementation.

Calls to print() and println() will be split up in multiple calls to write(). This causes a return value of n x -28 ==> mostly a number in the 65xxx range

See - https://en.wikipedia.org/wiki//dev/full

Interface

DEVFULL() constructor, sets the timeout to zero.
int available() always return 32767.
int peek() always returns 0.
int read() always returns 0.
void flush() does nothing but keeps some compilers happy.
size_t write(const uint8_t data) always returns -28 (ENOSPC).
size_t write(const uint8_t *buffer, size_t size) implements print interface. Always returns -28 (ENOSPC).

Error code

value	name	description
-28	ENOSPC	No space available for writing onto the "storage device".

Operation

Use with care.

See examples.

Future

improve documentation
improve code
- test different platforms.

2.0 KiB Raw Blame History