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Add hacked together vertical slice of host env updating idea

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This commit is contained in:
Mark McCaskey
2020-10-19 17:19:46 -07:00
parent a1ccfe228d
commit 3c7dfe29f3
18 changed files with 222 additions and 68 deletions
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25
lib/api/src/native.rs
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@@ -17,7 +17,8 @@ use crate::{FromToNativeWasmType, Function, FunctionType, RuntimeError, Store, W
use std::panic::{catch_unwind, AssertUnwindSafe};
use wasmer_types::NativeWasmType;
use wasmer_vm::{
ExportFunction, VMContext, VMDynamicFunctionContext, VMFunctionBody, VMFunctionKind,
ExportFunction, FunctionExtraData, VMContext, VMDynamicFunctionContext, VMFunctionBody,
VMFunctionKind,
};
/// A WebAssembly function that can be called natively
@@ -26,7 +27,7 @@ pub struct NativeFunc<'a, Args = (), Rets = ()> {
definition: FunctionDefinition,
store: Store,
address: *const VMFunctionBody,
vmctx: *mut VMContext,
vmctx: FunctionExtraData,
arg_kind: VMFunctionKind,
// exported: ExportFunction,
_phantom: PhantomData<(&'a (), Args, Rets)>,
@@ -42,7 +43,7 @@ where
pub(crate) fn new(
store: Store,
address: *const VMFunctionBody,
vmctx: *mut VMContext,
vmctx: FunctionExtraData,
arg_kind: VMFunctionKind,
definition: FunctionDefinition,
) -> Self {
@@ -68,6 +69,8 @@ where
address: other.address,
vmctx: other.vmctx,
signature,
// TODO:
function_ptr: 0,
kind: other.arg_kind,
}
}
@@ -87,6 +90,8 @@ where
address: other.address,
vmctx: other.vmctx,
signature,
// TODO:
function_ptr: 0,
kind: other.arg_kind,
},
}
@@ -163,7 +168,7 @@ macro_rules! impl_native_traits {
match self.arg_kind {
VMFunctionKind::Static => {
let results = catch_unwind(AssertUnwindSafe(|| unsafe {
let f = std::mem::transmute::<_, unsafe extern "C" fn( *mut VMContext, $( $x, )*) -> Rets::CStruct>(self.address);
let f = std::mem::transmute::<_, unsafe extern "C" fn( FunctionExtraData, $( $x, )*) -> Rets::CStruct>(self.address);
// We always pass the vmctx
f( self.vmctx, $( $x, )* )
})).map_err(|e| RuntimeError::new(format!("{:?}", e)))?;
@@ -173,12 +178,16 @@ macro_rules! impl_native_traits {
let params_list = [ $( $x.to_native().to_value() ),* ];
let results = if !has_env {
type VMContextWithoutEnv = VMDynamicFunctionContext<VMDynamicFunctionWithoutEnv>;
let ctx = self.vmctx as *mut VMContextWithoutEnv;
unsafe { (*ctx).ctx.call(&params_list)? }
unsafe {
let ctx = self.vmctx.host_env as *mut VMContextWithoutEnv;
(*ctx).ctx.call(&params_list)?
}
} else {
type VMContextWithEnv = VMDynamicFunctionContext<VMDynamicFunctionWithEnv<std::ffi::c_void>>;
let ctx = self.vmctx as *mut VMContextWithEnv;
unsafe { (*ctx).ctx.call(&params_list)? }
unsafe {
let ctx = self.vmctx.host_env as *mut VMContextWithEnv;
(*ctx).ctx.call(&params_list)?
}
};
let mut rets_list_array = Rets::empty_array();
let mut_rets = rets_list_array.as_mut() as *mut [i128] as *mut i128;