Schema loading from the wire

Cap'n Proto provides a schema loader, which can be used to dynamically
load schemas during runtime. To port this functionality to pycapnp,
a new class is provided `C_SchemaLoader`, which exposes the Cap'n
Proto C++ interface, and `SchemaLoader`, which is part of the pycapnp
library.

The specific use case for this is when a capnp message contains
a Node.Reader: The schema for a yet unseen message can be loaded
dynamically, allowing the future message to be properly processed.

If the message is a struct containing other structs, all the schemas for
every struct must be loaded to correctly parse the message. See
https://github.com/DaneSlattery/capnp_generic_poc for a
proof-of-concept.

Add docs and cleanup

Add more docs

Reduce changes

Fix flake8 formatting

Fix get datatype

This commit is contained in:

Rowan Reeve

2023-02-21 08:31:12 +02:00

committed by

DaneSlattery

parent b439993b1f

commit a5c29a74d2

9 changed files with 106 additions and 4 deletions

									
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				  :inherited-members:

				.. autoclass:: SchemaLoader

				  :members:

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				  :inherited-members:

				Functions

				---------

Schema loading from the wire

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