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make create_transform common & reorg trait imp to imp
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| use tracing::debug; | ||
| use wasmedge_sdk::error::HostFuncError; | ||
| use wasmedge_sdk::types::Val; | ||
| use wasmedge_sdk::{ | ||
| Executor, Func, Module, Store, CallingFrame, WasmValue, Caller, ImportObjectBuilder, | ||
| }; | ||
|
|
||
| use crate::engine::wasmedge::instance::{RecordsCallBack, RecordsMemory}; | ||
|
|
||
| use crate::engine::common::{WasmFn, WasmInstance}; | ||
| use crate::engine::error::EngineError; | ||
|
|
||
| use anyhow::Result; | ||
| use fluvio_smartmodule::dataplane::smartmodule::{SmartModuleExtraParams}; | ||
| use std::sync::Arc; | ||
|
|
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| pub(crate) struct WasmedgeInstance { | ||
| instance: wasmedge_sdk::Instance, | ||
| records_cb: Arc<super::instance::RecordsCallBack>, | ||
| params: SmartModuleExtraParams, | ||
| version: i16, | ||
| } | ||
|
|
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| pub(crate) struct WasmedgeContext { | ||
| pub engine: Executor, | ||
| } | ||
|
|
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| pub type WasmedgeFn = Func; | ||
|
|
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| impl WasmInstance for WasmedgeInstance { | ||
| type Context = WasmedgeContext; | ||
|
|
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| type Func = WasmedgeFn; | ||
|
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| fn get_fn(&self, name: &str, _ctx: &mut Self::Context) -> Result<Option<Self::Func>> { | ||
| match self.instance.func(name) { | ||
| // check type signature | ||
| Some(func) => Ok(Some(func)), | ||
| None => Ok(None), | ||
| } | ||
| } | ||
|
|
||
| fn write_input<E: fluvio_protocol::Encoder>( | ||
| &mut self, | ||
| input: &E, | ||
| ctx: &mut Self::Context, | ||
| ) -> Result<(i32, i32, i32)> { | ||
| self.records_cb.clear(); | ||
| let mut input_data = Vec::new(); | ||
| input.encode(&mut input_data, self.version)?; | ||
| debug!( | ||
| len = input_data.len(), | ||
| version = self.version, | ||
| "input encoded" | ||
| ); | ||
| let array_ptr = | ||
| super::memory::copy_memory_to_instance(&ctx.engine, &self.instance, &input_data)?; | ||
| let length = input_data.len(); | ||
| Ok((array_ptr, length as i32, self.version as i32)) | ||
| } | ||
|
|
||
| fn read_output<D: fluvio_protocol::Decoder + Default>( | ||
| &mut self, | ||
| _ctx: &mut Self::Context, | ||
| ) -> Result<D> { | ||
| let bytes = self | ||
| .records_cb | ||
| .get() | ||
| .and_then(|m| m.copy_memory_from().ok()) | ||
| .unwrap_or_default(); | ||
| let mut output = D::default(); | ||
| output.decode(&mut std::io::Cursor::new(bytes), self.version)?; | ||
| Ok(output) | ||
| } | ||
|
|
||
| fn params(&self) -> SmartModuleExtraParams { | ||
| self.params.clone() | ||
| } | ||
| } | ||
|
|
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| impl WasmFn for WasmedgeFn { | ||
| type Context = WasmedgeContext; | ||
|
|
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| fn call(&self, ptr: i32, len: i32, version: i32, ctx: &mut Self::Context) -> Result<i32> { | ||
| let res = self.call( | ||
| &ctx.engine, | ||
| vec![ | ||
| Val::I32(ptr).into(), | ||
| Val::I32(len).into(), | ||
| Val::I32(version).into(), | ||
| ], | ||
| )?; | ||
| Ok(res[0].to_i32()) | ||
| } | ||
| } | ||
|
|
||
| impl WasmedgeInstance { | ||
| /// instantiate new module instance that contain context | ||
| pub(crate) fn instantiate( | ||
| store: &mut Store, | ||
| executor: &mut Executor, | ||
| module: Module, | ||
| params: SmartModuleExtraParams, | ||
| version: i16, | ||
| ) -> Result<Self, EngineError> { | ||
| debug!("creating WasmModuleInstance"); | ||
| let cb = Arc::new(RecordsCallBack::new()); | ||
| let records_cb = cb.clone(); | ||
|
|
||
| // See crates/fluvio-smartmodule-derive/src/generator/transform.rs for copy_records | ||
| let copy_records_fn = move |caller: CallingFrame, | ||
| inputs: Vec<WasmValue>| | ||
| -> Result<Vec<WasmValue>, HostFuncError> { | ||
| assert_eq!(inputs.len(), 2); | ||
| let ptr = inputs[0].to_i32() as u32; | ||
| let len = inputs[1].to_i32() as u32; | ||
|
|
||
| debug!(len, "callback from wasm filter"); | ||
| let caller = Caller::new(caller); | ||
| let memory = caller.memory(0).unwrap(); | ||
|
|
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| let records = RecordsMemory { ptr, len, memory }; | ||
| cb.set(records); | ||
| Ok(vec![]) | ||
| }; | ||
|
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| let import = ImportObjectBuilder::new() | ||
| .with_func::<(i32, i32), ()>("copy_records", copy_records_fn) | ||
| .map_err(|e| EngineError::Instantiate(e.into()))? | ||
| .build("env") | ||
| .map_err(|e| EngineError::Instantiate(e.into()))?; | ||
|
|
||
| debug!("instantiating WASMtime"); | ||
| store | ||
| .register_import_module(executor, &import) | ||
| .map_err(|e| EngineError::Instantiate(e.into()))?; | ||
| let instance = store | ||
| .register_active_module(executor, &module) | ||
| .map_err(|e| EngineError::Instantiate(e.into()))?; | ||
|
|
||
| // This is a hack to avoid them being dropped | ||
| // FIXME: manage their lifetimes | ||
| std::mem::forget(import); | ||
| std::mem::forget(module); | ||
|
|
||
| Ok(Self { | ||
| instance, | ||
| records_cb, | ||
| params, | ||
| version, | ||
| }) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| use std::convert::TryFrom; | ||
| use std::fmt::Debug; | ||
|
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| use anyhow::{Result, Ok}; | ||
| use fluvio_smartmodule::dataplane::smartmodule::{ | ||
| SmartModuleInitInput, SmartModuleInitOutput, SmartModuleInitErrorStatus, | ||
| }; | ||
|
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| use crate::engine::common::{WasmFn, WasmInstance}; | ||
|
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| use super::instance::SmartModuleInstanceContext; |
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