Mismatch between C++ and Python for callback index type #111
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Looks like the build failed because the build server is missing the file /usr/local/opt/bison/bin/bison. How can this be resolved? Thanks. |
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Hi @RamseyTI , thanks for providing this bugfix. I am going to integrate it. As for the Travis build issue, it has just been solved on the develop branch. Could you please rebase your PR to trigger the Travis again with correct/updated config? Thank you. |
When multiple callbacks are defined, callbacks are stored in an array on both the client and server. When a callback is registered, only the index of the callback in this array is sent over the transport. In C++, the array index is encoded as a uint8, where as in Python it is encoded as a uint32. So, a Python client will not be aligned with a C++ server, leading to wrong information being decoded by the server. This fix aligns both to be a uint8 type for the callback index.
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Looks like the build passed. Thanks. |
MichalPrincNXP
approved these changes
Aug 5, 2020
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In eRPC, when multiple callbacks are defined, callbacks are stored
in an array on both the client and server. When a callback is register,
only the index of the callback in this array is sent over the transport.
In C++, the array index is encoded as a unit8, where as in Python it is
encoded as a uint32. So, a Python client will not be aligned with a C++
server, leading to wrong information being decoded by the server. This
fix aligns both to be a uint8 type for the callback index.