jepler/circuitpython
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3 commits

Author SHA1 Message Date
Jeff Epler
0615d13963 py/objringio: Detect incorrect constructor calls. 
ringbuffer.size must be at least 2, and is a 16-bit quantity.

This fixes several cases including the one the fuzzer discovered, which
would lead to a fatal signal when accessing the object.

Fixes issue #17847.

Signed-off-by: Jeff Epler <jepler@gmail.com>
 2025-08-15 01:21:25 +10:00
Damien George
52f2ba5677 tests/micropython: Tweak ringio test for targets with terse errors. 
Signed-off-by: Damien George <damien@micropython.org>
 2024-10-22 14:31:13 +11:00
Andrew Leech
7e14680a83 py/objringio: Add micropython.RingIO() interface for general use. 
This commit adds a new `RingIO` type which exposes the internal ring-buffer
code for general use in Python programs.  It has the stream interface
making it similar to `StringIO` and `BytesIO`, except `RingIO` has a fixed
buffer size and is automatically safe when reads and writes are in
different threads or an IRQ.

This new type is enabled at the "extra features" ROM level.

Signed-off-by: Andrew Leech <andrew.leech@planetinnovation.com.au>
 2024-09-19 18:00:44 +10:00