This commit adds the following features:
- Example posix drivers to support virtual time simulation, allowing tests
to run faster than real time.
- A python-based simulation driver that coordinates the virtual time
simulations. Each alarm event and message transmission across all nodes
are scheduled in a single discrete time event queue. As a result, only
a single node is making forward progress at a time.
- Updated tests to utilize new virtual-time simulator, allowing them to run
faster than real time.
- To enable virtual time feature, define VIRTUAL_TIME=1 env var and set
CPPFLAGS=-DOPENTHREAD_POSIX_VIRTUAL_TIME=1.
This commit increases the time in waiting for a child to reattach. This
reflects the recent change to add retransmissions to the MLE Child Update
Request message.
The local Active and Pending Operational Datsets are stored in non-volatile
memory. This commit dynamically retrieves those datasets from non-volatile
memory when they are needed.
This commit also simplifies the use of the Operational Datasets by having the
RAM buffer store the local Operational Dataset when in the detached state.
Yakun Xu