Execution¶

Run a compiled graph inside an execution context, supply runtime components defined in Python, and access live state from a running graph.

`libtcspc.ExecutionContext`	An execution context for a compiled processing graph.
`libtcspc.EndOfProcessing`	Exception raised when processing finished without error, but for a reason other than reaching the end of the input.

Run-time Python components¶

User-supplied Python objects passed to ExecutionContext to handle input to and output from the graph.

`libtcspc.PySink`	Abstract base class for sinks (output handling processors) written in Python.
`libtcspc.PyAcquisitionReader`	Acquisition reader implemented in Python and supplied as an argument upon creation of the execution context.

Runtime access¶

Access objects expose live state from processors in running graphs. Use an AccessTag declared at graph-definition time to look up the corresponding access object from ExecutionContext. The access object has a run-time-generated type but implements one of the Access protocols.

`libtcspc.Access`	Base protocol for run-time access objects.
`libtcspc.AcquireAccess`	Run-time access object for an `Acquire` processor.
`libtcspc.CountAccess`	Run-time access object for a `Count` processor.