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Add timing instrumentation

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This commit is contained in:
Isaac Clayton 2022-07-04 12:23:36 +02:00
parent 2c637b83bf
commit 61f5326033
3 changed files with 57 additions and 46 deletions
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4
crates/plugin_runtime/README.md
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@ -10,7 +10,7 @@ Wasm plugins can be run through `wasmtime`, with supported for sandboxed system
## ABI
The interface between the host Rust runtime ('Runtime') and plugins implemented in Wasm ('Plugin') is pretty simple.
`Buffer` is a pair of two 4-byte (`u32`) fields:
`Buffer` is a pair of two 4-byte (`u32`) fields, encoded as a single `u64`.
```
struct Buffer {
@ -21,7 +21,7 @@ struct Buffer {
All functions that Plugin exports must have the following properties:
- Have the signature `fn(ptr: u32, len: u32) -> u32`, where the return type is a pointer to a `Buffer`, and the arguments are the component parts of a `Buffer`.
- Have the signature `fn(ptr: u64) -> u64`, where both the argument and return types are a `Buffer`:
- The input `Buffer` will contain the input arguments serialized to `bincode`.
- The output `Buffer` will contain the output arguments serialized to `bincode`.