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add missing timeout options
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linnik committed Oct 26, 2021
1 parent ac0d6bf commit af820a7
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Showing 5 changed files with 31 additions and 10 deletions.
1 change: 1 addition & 0 deletions AUTHORS.rst
Original file line number Diff line number Diff line change
Expand Up @@ -19,3 +19,4 @@ Contributors
* Bernie Conrad <[email protected]>
* Jonathan Soto <[email protected]>
* Kyle J. Williams <[email protected]>
* Vyacheslav Linnik <[email protected]>
1 change: 1 addition & 0 deletions CHANGELOG.rst
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ Fixed
of the same characteristic are used. Fixes #675.
* Fixed reading a characteristic on CoreBluetooth backend also triggers notification
callback.
* Removed hardcoded timeout values in all backends.


`0.13.0`_ (2021-10-20)
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20 changes: 15 additions & 5 deletions bleak/backends/bluezdbus/client.py
Original file line number Diff line number Diff line change
Expand Up @@ -90,7 +90,7 @@ async def connect(self, **kwargs) -> bool:
"""Connect to the specified GATT server.
Keyword Args:
timeout (float): Timeout for required ``BleakScanner.find_device_by_address`` call. Defaults to 10.0.
timeout (float): Defaults to 10.0.
Returns:
Boolean representing connection status.
Expand Down Expand Up @@ -377,9 +377,12 @@ def _cleanup_all(self) -> None:
self.services = BleakGATTServiceCollection()
self._services_resolved = False

async def disconnect(self) -> bool:
async def disconnect(self, **kwargs) -> bool:
"""Disconnect from the specified GATT server.
Keyword Args:
timeout (float): Defaults to 10.0.
Returns:
Boolean representing if device is disconnected.
Expand All @@ -396,10 +399,11 @@ async def disconnect(self) -> bool:
logger.debug(f"already disconnected ({self._device_path})")
return True

timeout = kwargs.get("timeout", self._timeout)
if self._disconnecting_event:
# another call to disconnect() is already in progress
logger.debug(f"already in progress ({self._device_path})")
await asyncio.wait_for(self._disconnecting_event.wait(), timeout=10)
await asyncio.wait_for(self._disconnecting_event.wait(), timeout=timeout)
elif self.is_connected:
self._disconnecting_event = asyncio.Event()
try:
Expand All @@ -413,7 +417,9 @@ async def disconnect(self) -> bool:
)
)
assert_reply(reply)
await asyncio.wait_for(self._disconnecting_event.wait(), timeout=10)
await asyncio.wait_for(
self._disconnecting_event.wait(), timeout=timeout
)
finally:
self._disconnecting_event = None

Expand Down Expand Up @@ -575,6 +581,9 @@ def mtu_size(self) -> int:
async def get_services(self, **kwargs) -> BleakGATTServiceCollection:
"""Get all services registered for this GATT server.
Keyword Args:
timeout (float): Defaults to 10.0.
Returns:
A :py:class:`bleak.backends.service.BleakGATTServiceCollection` with this device's services tree.
Expand All @@ -585,11 +594,12 @@ async def get_services(self, **kwargs) -> BleakGATTServiceCollection:
if self._services_resolved:
return self.services

timeout = kwargs.get("timeout", self._timeout)
if not self._properties["ServicesResolved"]:
logger.debug(f"Waiting for ServicesResolved ({self._device_path})")
self._services_resolved_event = asyncio.Event()
try:
await asyncio.wait_for(self._services_resolved_event.wait(), 5)
await asyncio.wait_for(self._services_resolved_event.wait(), timeout)
finally:
self._services_resolved_event = None

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11 changes: 8 additions & 3 deletions bleak/backends/corebluetooth/PeripheralDelegate.py
Original file line number Diff line number Diff line change
Expand Up @@ -9,7 +9,7 @@
import asyncio
import itertools
import logging
from typing import Callable, Any, Dict, Iterable, NewType, Optional
from typing import Callable, Any, Dict, Iterable, NewType, Optional, Union

import objc
from Foundation import NSNumber, NSObject, NSArray, NSData, NSError, NSUUID, NSString
Expand Down Expand Up @@ -125,17 +125,22 @@ async def discover_descriptors(self, characteristic: CBCharacteristic) -> NSArra

@objc.python_method
async def read_characteristic(
self, characteristic: CBCharacteristic, use_cached: bool = True
self,
characteristic: CBCharacteristic,
use_cached: bool = True,
timeout: Optional[Union[int, float]] = None,
) -> NSData:
if characteristic.value() is not None and use_cached:
return characteristic.value()
if timeout is None:
timeout = self._timeout

future = self._event_loop.create_future()

self._characteristic_read_futures[characteristic.handle()] = future
try:
self.peripheral.readValueForCharacteristic_(characteristic)
return await asyncio.wait_for(future, timeout=5)
return await asyncio.wait_for(future, timeout=timeout)
finally:
del self._characteristic_read_futures[characteristic.handle()]

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8 changes: 6 additions & 2 deletions bleak/backends/winrt/client.py
Original file line number Diff line number Diff line change
Expand Up @@ -258,14 +258,18 @@ def _ConnectionStatusChanged_Handler(sender, args):

return True

async def disconnect(self) -> bool:
async def disconnect(self, **kwargs) -> bool:
"""Disconnect from the specified GATT server.
Keyword Args:
timeout (float): Defaults to 10.0.
Returns:
Boolean representing if device is disconnected.
"""
logger.debug("Disconnecting from BLE device...")
timeout = kwargs.get("timeout", self._timeout)
# Remove notifications.
for handle, event_handler_token in list(self._notification_callbacks.items()):
char = self.services.get_characteristic(handle)
Expand All @@ -289,7 +293,7 @@ async def disconnect(self) -> bool:
self._disconnect_events.append(event)
try:
self._requester.close()
await asyncio.wait_for(event.wait(), timeout=10)
await asyncio.wait_for(event.wait(), timeout=timeout)
finally:
self._disconnect_events.remove(event)

Expand Down

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