The comment says it is `buffer[start:end]` but it assumed elements
were a single byte long. Now it correctly does multibyte elements
from array.array.
Fixes#4988
Previously the only other way of determining whether the Vfs has been mounted
read-write or read-only appears to be to attempt a write operation and detect a
possible OSError.
It wasn't possible for the user code to keep track of the state of the state
since the boot VM has to decide whether to (re)mount read-write or read-only,
but can't (easily) pass this information on to the runtime VM.
* read() is now readinto() and takes the buffer to write into.
* readinto() returns the number of valid samples.
* readinto() can be interrupted by ctrl-c.
* readinto() API doesn't support signed numbers because it never did.
* sample_rate is now required in the constructor because supported
values will vary per-port.
* 16 bit values are full range. 12 bit samples from RP2040 are stretched
in the same way they are for AnalogIn.
Fixes#7226
gaierror(-2) is raised in the failure case of getaddrinfo. This is
compatible with cpython's socket module.
Typical session:
```
>>> import socketpool
>>> import wifi
>>> socket = socketpool.SocketPool(wifi.radio)
>>> try: socket.getaddrinfo("boo", 0)
... except socket.gaierror as e: ee = e
...
>>> type(ee)
<class 'gaierror'>
>>> ee.errno == socket.EAI_NONAME
True
>>> ee.strerror
'Name or service not known'
>>> raise ee
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 1, in <module>
gaierror: (-2, 'Name or service not known')
```
Closes: #6941
It's more efficient passing one register-sized structure than 4
arguments or 4 pointers; working on intermediate values of 'int' size
is also more efficient in code size!
On raspberry pi pico w, this increased free flash space by +104 bytes.
It also increased the speed of my testing animation very slightly, from
187fps to 189fps when run 'unthrottled'
.. a fast helper for animations. It is similar to and inspired by the
PixelMap helper in Adafruit LED Animation library, but with an extremely
fast 'paste' method for setting a series of pixels. This is a common
operation for many animations, and can give a substantial speed improvement.
It's named `adafruit_pixelmap` so that we can package a compatible version
in pure Python for systems that can't fit it in C in flash, or for
Blinka.
This is a proof of concept and can make a very fast comet animation:
```python
import time
import adafruit_pixelbuf
import adafruti_pixelmap
import board
import neopixel
from supervisor import ticks_ms
from adafruit_led_animation.animation.solid import Solid
from adafruit_led_animation import color
pixel_pin = board.GP0
pixel_num = 96
pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness=1, auto_write=False, pixel_order="RGB")
evens = adafruit_pixelmap.PixelMap(pixels, tuple(range(0, pixel_num, 2)))
odd_indices = tuple((i, i+2) for i in range(1, pixel_num, 4))
print(odd_indices)
odds = adafruit_pixelbuf.PixelMap(pixels, odd_indices)
assert len(odds) == len(odd_indices)
comet_length = 16
comet1 = [color.calculate_intensity(color.GREEN, ((1+i) / comet_length) ** 2.4)
for i in range(comet_length)]
comet2 = [color.calculate_intensity(color.PURPLE, ((1+i) / comet_length) ** 2.4)
for i in range(comet_length)]
pos1 = 0
pos2 = 96//4
while True:
evens.paste(comet1, pos1, wrap=True, reverse=False, others=0)
pos1 = (pos1 + 1) % len(evens)
odds.paste(comet2, pos2, wrap=True, reverse=True, others=0)
pos2 = (pos2 - 1) % len(odds)
pixels.show()
m = ticks_ms()
if m % 2000 > 1000:
time.sleep(.02)
```
Because this must be treated like an in-use pin for all other purposes,
unfortunately a special case must be added in shared-bindings.
Multiple AnalogIn objects for VOLTAGE_MONITOR can be created (because
in use tracking isn't working) but this causes no harm.
Testing performed: Read the monitor, then imported wifi. When the
pin state was insufficiently restored, the second step would fail
with debug messages about do_ioctl timeout.
```
import analogio, board
a = analogio.AnalogIn(board.VOLTAGE_MONITOR)
print(a.value)
import wifi
```
Closes: #7020
When "Limitations:" is in the class docstring, it is sometimes taken
as a class attribute name because of the colon. When exactly is not clear, but
changing embedded colons or various indentations fixes the problem.
The standard Python 'fix' for 'send()' returning prematurely is to
use the 'sendall()' method instead. However, this method was not
available. adafruit_httpserver will probably need to code a version
of it for older versions or for Airlift, but when it's available
this code works (Tested on picow sending 8192 bytes) and may be more
efficient.
(implementing 'sendall' in python should take care to slice a memoryview
rather than the original buffer)
We adopted the file "py/ioctl.h" and the ioctl names beginning
with MP_IOCTL_POLL while micropython went with "py/stream.h" and
MP_STREAM_POLL.
Align with upstream.
Closes#6711
MicroDev
Neradoc
Maciej Sokołowski
Dan Halbert
Scott Shawcroft
Dan Halbert
Jeff Epler
s-ol
foamyguy
Jeffrey Shimbo
Kattni