[GitHub] [mynewt-nimble] andrewleech commented on pull request #1113: host/ble_att_svr: Reset handles index on attributes reset.

[GitBox <gi...@apache.org>]

andrewleech commented on pull request #1113:
URL: https://github.com/apache/mynewt-nimble/pull/1113#issuecomment-988336163


   As some background to this change, we're using nimble as the primary BLE stack in micropython.
   
   During the initial startup of the stack we register the standard gap/gatt services: https://github.com/micropython/micropython/blob/851ecb2da178fff0b60aefdb5af502f28787a7ec/extmod/nimble/modbluetooth_nimble.c#L653
   
   The micropython end user application would later typically define all the desired services/characteristics which is managed dynamically by resetting the registration and building up the required structs to be registered: https://github.com/micropython/micropython/blob/851ecb2da178fff0b60aefdb5af502f28787a7ec/extmod/nimble/modbluetooth_nimble.c#L907
   
   This has been working very well, however we recently discoevered that the handles would continue incrementing over each registration reset, causing difficulties with any paired devices which have cached services/characteristics.


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