Vehicle state machine.
A library for state transitions on an abstract vehicle with role permissions.
The state graph is constructed by providing adjacent edges (Transitions) to
the VSM struct. A transition contains a start and end end state as well as
set of permitted roles. From then on, states can be transitioned
(VSM.Transition) by providing the destination state and a role. The transition
is validated to that only known edges with permitted roles can traverse the
graph.
The state machine is desired to be stateless, but currently holds the current state.
A subset of the graph, namely all transitions additionally allowed by the administrator role, is implemented in the validation logic instead of constructing a fully connected bi-directly graph.
All automated transitions must be initiated externally and with the explicit
RoleAutomatic role.
The repository contains a command-line simulator which can simulate all
automated and manual transitions; see cmd/vsm.
For help:
make
To compile:
make build
To manually try:
./vsm
make test