11 lines
828 B
Markdown
11 lines
828 B
Markdown
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# WASI host - module data exchange
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The module SDK re-uses a subset of protobuf messages also used in the remote protocol except for the `TaskOutput` message because WASI handles `STDOUT`/`STDERR` already.
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The protobuf messages are not used with gRPC but only as binary encoded messages shared via pointers in the WASI modules memory.
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The following 'RPC' calls are supported:
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- `log_msg` accepting a pointer and an offset to a `TaskLog` message - won't return anything
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- `get_state` accepting a pointer and an offset to a `GetStateRequest` message, returning a 64-bit integer (32-bit pointer, 32-bit size) to a `GetStateResponse` message
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- `set_state` accepting a pointer and an offset to a `SetState` message, returning a 64-bit integer (32-bit pointer, 32-bit size) to a `Result` message optionally containing error details
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