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Channel reset#756
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Channel reset#756
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… /sys/class/lego-sensor/sensor0/value0 . From a primitive measurement it's a boost of about 2x
3 tasks
| do { | ||
| byteBuffer.clear(); | ||
| channel.position(0); | ||
| n = channel.read(byteBuffer); |
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I think this could be simplified to achannel.read(byteBuffer, 0) call. However, it's entirely possible that under the hood the two-arg read is just the following, which could be slower:
int old = channel.position();channel.position(0);int rval = channel.read(buffer);channel.position(old);return rval;Sign up for freeto join this conversation on GitHub. Already have an account?Sign in to comment
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I've created DataChannelRereader - a Closable wrapped around a FileChannel that lets us reread the same fixed-length structure very efficiently.
I've used it (without reusing it) in Sysfs2, to read Strings as a first step. From here I can expand outward into the device and mode APIs to reuse it for specific optimizations, and add to DataChannelRereader to support binary data, as incremental steps.