shared/gatt: Make discovery operations cancelable This patch makes discovery operations cancelable by exposing the internal discovery op structure as bt_gatt_async_req. This structure keeps track of the ATT request ids of discovery procedures that occur over multiple ATT protocol requests. Users can cancel an ongoing request by calling bt_gatt_async_req_cancel. Each discovery helper function returns a pointer to the structure with one addition reference count assigned to the caller, so the caller is responsible for cleaning up the memory by calling bt_gatt_async_req_unref.

Diffstat

2 files changed, 167 insertions(+), 122 deletions(-)