Add duration flag (in seconds) to scan with options

[peitschie]

This allows different scan modes to be easily selected while still allowing the scan to be time-limited

[mikerusso-tsi]

Looks like you're cutting off the 'scan' function, which will force all consumers of that to switch. Do you normally want a deprecation period to ease people over? I.e., change 'scan' to internally call 'startScanWithOptions'.

Also, will this be available in the 'slim' variant?

BTW, here is my code to replace the 'scan' call. I believe I am seeing the same scan performance with it as before the API change you indicated!
let options = { scanMode: 'lowLatency', duration: timeout }; ble.startScanWithOptions(services, options, success, failure);
where timeout is a number in seconds.

[peitschie]

Bothscan and startScan remain fully supported. If you pay close attention to ble.js, you'll see that I've routed these to the equivalent scanWithOptions call instead, as all the native paths trace through the same code.

[mikerusso-tsi]

Bothscan and startScan remain fully supported. If you pay close attention to ble.js, you'll see that I've routed these to the equivalent scanWithOptions call instead, as all the native paths trace through the same code.

Ah, that's what I was expecting! Sorry.
But is the @slim variant included in this PR? I'm hoping so!

[peitschie]

Slim runs on a different branch. I'll publish both at the same time once I merge this 🙂