Skip to content

Don't allocate packet buf until connected #3

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 2 commits into from
May 4, 2020
Merged

Don't allocate packet buf until connected #3

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
c60e598
Don't allocate packet buf until connected
dhalbert Apr 30, 2020
cda65d3
fix one arg error; add delay to startup in example
dhalbert May 4, 2020
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 4 additions & 3 deletions adafruit_ble_midi.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -79,7 +79,8 @@ class MIDIService(Service):

def __init__(self, **kwargs):
super().__init__(**kwargs)
self._in_buffer = bytearray(self._raw.packet_size)
# Defer creating _in_buffer until we're definitely connected.
self._in_buffer = None
self._out_buffer = None
shared_buffer = memoryview(bytearray(4))
self._buffers = [
Expand All @@ -102,6 +103,8 @@ def readinto(self, buf, length):
"""Reads up to ``length`` bytes into ``buf`` starting at index 0.

Returns the number of bytes written into ``buf``."""
if self._in_buffer is None:
self._in_buffer = bytearray(self._raw.packet_size)
i = 0
while i < length:
if self._in_index < self._in_length:
Expand All @@ -119,8 +122,6 @@ def readinto(self, buf, length):
buf[i] = byte
i += 1
else:
if len(self._in_buffer) < self._raw.packet_size:
self._in_buffer = bytearray(self._raw.packet_size)
self._in_length = self._raw.readinto(self._in_buffer)
if self._in_length == 0:
break
Expand Down