UUID change on the fly

Question

Hi, 
 I have a 128bit UUID on the ad block which I need to change on the fly to another 128bit UUID. 
 I tried different solutions and searched for a good example, however I have not found one that would be a clear example how to do it. I am not very proficient in C, so I have some issues with the details. 
 The operation should be able to be done even if a client is connected. Some examples I tried make an error 18 if a connection is active. 
 Would there be a good and clear code example that will make: 1. Stop advertising 2. End and clear any connection if active 3. Change 128bit UUID to another 128bit UUID in advertisement 4. Start advertising with a new 128bit UUID 
 Thank you!

iQd · Accepted Answer

I solved the problem by making the following: 
 1. Have multiple UUIDs in their own arrays. 2. In advertising_init, I have an IF conditional for choosing the UUID I want to use in different situations. 3. When I need to change the UUID, I set a variable which controls the UUID selection in advertising_init. 4. Then I check if a connection is active. If so, end the connection and wait for the event telling this has happened. In this event code I trigger a flag variable which makes the next step. If no connection is active, I do the next step directly. 5. Stop advertising, run advertising_init again, new UUID is selected, start advertising. 
 This way the new UUID comes active almost instantly and I achieve what I was looking for.

UUID change on the fly

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