diff options
| -rw-r--r-- | src/sensors/qsensor.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/sensors/qsensor.cpp b/src/sensors/qsensor.cpp index e9637fb06c..47f4840413 100644 --- a/src/sensors/qsensor.cpp +++ b/src/sensors/qsensor.cpp @@ -832,6 +832,17 @@ int QSensor::error() const When the sensor is started with buffering option, values are collected from that moment onwards. There is no pre-existing buffer that can be utilized. + Some backends like Blackberry only support enabling or disabling the buffer and do not give + control over the size. In this case, the maxBufferSize and efficientBufferSize properties + might not be set at all, even though buffering is supported. Setting the bufferSize property + to any value greater than 1 will enable buffering. After the sensor has been started, + the bufferSize property will be set to the actual value by the backend. + + On Blackberry, buffering will not wait until the buffer is full to deliver new + readings. Instead, the buffer will be used if the backend does not manage to retrieve the readings + in time, for example when the event loop is blocked for too long. Without a buffer, these readings + would simply be dropped. + The buffer size can only be changed while the sensor is not active. \sa QSensor::maxBufferSize, QSensor::efficientBufferSize |