diff options
author | snek <snek@deno.com> | 2024-08-19 07:51:16 -0700 |
---|---|---|
committer | GitHub <noreply@github.com> | 2024-08-19 14:51:16 +0000 |
commit | c0aa68a1e2a34777c01fd6f718b7718b14e3a18d (patch) | |
tree | f4e1147f3511757c2a53ca573ecc25a6aa98c4d2 /ext/ffi | |
parent | 526f39fbb9dacce12c69d24a55798d0bde8f2707 (diff) |
feat: upgrade deno_core (#25042)
- Update ffi turbocall to use revised fast call api
- Remove `v8_version` function calls
- `*mut OwnedIsolate` is no longer stored in OpCtx gotham store
Diffstat (limited to 'ext/ffi')
-rw-r--r-- | ext/ffi/dlfcn.rs | 138 | ||||
-rw-r--r-- | ext/ffi/turbocall.rs | 69 |
2 files changed, 111 insertions, 96 deletions
diff --git a/ext/ffi/dlfcn.rs b/ext/ffi/dlfcn.rs index 2bc9ab341..261a62cd3 100644 --- a/ext/ffi/dlfcn.rs +++ b/ext/ffi/dlfcn.rs @@ -5,11 +5,13 @@ use crate::ir::out_buffer_as_ptr; use crate::symbol::NativeType; use crate::symbol::Symbol; use crate::turbocall; +use crate::turbocall::Turbocall; use crate::FfiPermissions; use deno_core::error::generic_error; use deno_core::error::AnyError; use deno_core::op2; use deno_core::v8; +use deno_core::GarbageCollected; use deno_core::OpState; use deno_core::Resource; use dlopen2::raw::Library; @@ -208,84 +210,84 @@ where Ok(out.into()) } +struct FunctionData { + // Held in a box to keep memory while function is alive. + #[allow(unused)] + symbol: Box<Symbol>, + // Held in a box to keep inner data alive while function is alive. + #[allow(unused)] + turbocall: Option<Turbocall>, +} + +impl GarbageCollected for FunctionData {} + // Create a JavaScript function for synchronous FFI call to // the given symbol. fn make_sync_fn<'s>( scope: &mut v8::HandleScope<'s>, - sym: Box<Symbol>, + symbol: Box<Symbol>, ) -> v8::Local<'s, v8::Function> { - let sym = Box::leak(sym); - let builder = v8::FunctionTemplate::builder( - |scope: &mut v8::HandleScope, - args: v8::FunctionCallbackArguments, - mut rv: v8::ReturnValue| { - let external: v8::Local<v8::External> = args.data().try_into().unwrap(); - // SAFETY: The pointer will not be deallocated until the function is - // garbage collected. - let symbol = unsafe { &*(external.value() as *const Symbol) }; - let out_buffer = match symbol.result_type { - NativeType::Struct(_) => { - let argc = args.length(); - out_buffer_as_ptr( - scope, - Some( - v8::Local::<v8::TypedArray>::try_from(args.get(argc - 1)) - .unwrap(), - ), - ) - } - _ => None, - }; - match crate::call::ffi_call_sync(scope, args, symbol, out_buffer) { - Ok(result) => { - let result = - // SAFETY: Same return type declared to libffi; trust user to have it right beyond that. - unsafe { result.to_v8(scope, symbol.result_type.clone()) }; - rv.set(result); - } - Err(err) => { - deno_core::_ops::throw_type_error(scope, err.to_string()); - } - }; - }, - ) - .data(v8::External::new(scope, sym as *mut Symbol as *mut _).into()); - - let mut fast_call_alloc = None; - - let func = if turbocall::is_compatible(sym) { - let trampoline = turbocall::compile_trampoline(sym); - let func = builder.build_fast( - scope, - &turbocall::make_template(sym, &trampoline), - None, - None, - None, - ); - fast_call_alloc = Some(Box::into_raw(Box::new(trampoline))); - func + let turbocall = if turbocall::is_compatible(&symbol) { + let trampoline = turbocall::compile_trampoline(&symbol); + let turbocall = turbocall::make_template(&symbol, trampoline); + Some(turbocall) + } else { + None + }; + + let c_function = turbocall.as_ref().map(|turbocall| { + v8::fast_api::CFunction::new( + turbocall.trampoline.ptr(), + &turbocall.c_function_info, + ) + }); + + let data = FunctionData { symbol, turbocall }; + let data = deno_core::cppgc::make_cppgc_object(scope, data); + + let builder = v8::FunctionTemplate::builder(sync_fn_impl).data(data.into()); + + let func = if let Some(c_function) = c_function { + builder.build_fast(scope, &[c_function]) } else { builder.build(scope) }; - let func = func.get_function(scope).unwrap(); + func.get_function(scope).unwrap() +} - let weak = v8::Weak::with_finalizer( +fn sync_fn_impl<'s>( + scope: &mut v8::HandleScope<'s>, + args: v8::FunctionCallbackArguments<'s>, + mut rv: v8::ReturnValue, +) { + let data = deno_core::cppgc::try_unwrap_cppgc_object::<FunctionData>( scope, - func, - Box::new(move |_| { - // SAFETY: This is never called twice. pointer obtained - // from Box::into_raw, hence, satisfies memory layout requirements. - let _ = unsafe { Box::from_raw(sym) }; - if let Some(fast_call_ptr) = fast_call_alloc { - // fast-call compiled trampoline is unmapped when the MMAP handle is dropped - // SAFETY: This is never called twice. pointer obtained - // from Box::into_raw, hence, satisfies memory layout requirements. - let _ = unsafe { Box::from_raw(fast_call_ptr) }; - } - }), - ); - - weak.to_local(scope).unwrap() + args.data(), + ) + .unwrap(); + let out_buffer = match data.symbol.result_type { + NativeType::Struct(_) => { + let argc = args.length(); + out_buffer_as_ptr( + scope, + Some( + v8::Local::<v8::TypedArray>::try_from(args.get(argc - 1)).unwrap(), + ), + ) + } + _ => None, + }; + match crate::call::ffi_call_sync(scope, args, &data.symbol, out_buffer) { + Ok(result) => { + let result = + // SAFETY: Same return type declared to libffi; trust user to have it right beyond that. + unsafe { result.to_v8(scope, data.symbol.result_type.clone()) }; + rv.set(result); + } + Err(err) => { + deno_core::_ops::throw_type_error(scope, err.to_string()); + } + }; } // `path` is only used on Windows. diff --git a/ext/ffi/turbocall.rs b/ext/ffi/turbocall.rs index b1cd5177b..38b4062ab 100644 --- a/ext/ffi/turbocall.rs +++ b/ext/ffi/turbocall.rs @@ -40,26 +40,39 @@ pub(crate) fn compile_trampoline(sym: &Symbol) -> Trampoline { } } -pub(crate) fn make_template( - sym: &Symbol, - trampoline: &Trampoline, -) -> fast_api::FastFunction { - let params = once(fast_api::Type::V8Value) // Receiver +pub(crate) struct Turbocall { + pub trampoline: Trampoline, + // Held in a box to keep the memory alive for CFunctionInfo + #[allow(unused)] + pub param_info: Box<[fast_api::CTypeInfo]>, + // Held in a box to keep the memory alive for V8 + #[allow(unused)] + pub c_function_info: Box<fast_api::CFunctionInfo>, +} + +pub(crate) fn make_template(sym: &Symbol, trampoline: Trampoline) -> Turbocall { + let param_info = once(fast_api::Type::V8Value.scalar()) // Receiver .chain(sym.parameter_types.iter().map(|t| t.into())) - .collect::<Vec<_>>(); + .collect::<Box<_>>(); let ret = if sym.result_type == NativeType::Buffer { // Buffer can be used as a return type and converts differently than in parameters. - fast_api::CType::Pointer + fast_api::Type::Pointer.scalar() } else { - fast_api::CType::from(&fast_api::Type::from(&sym.result_type)) + (&sym.result_type).into() }; - fast_api::FastFunction::new_with_bigint( - Box::leak(params.into_boxed_slice()), + let c_function_info = Box::new(fast_api::CFunctionInfo::new( ret, - trampoline.ptr(), - ) + ¶m_info, + fast_api::Int64Representation::BigInt, + )); + + Turbocall { + trampoline, + param_info, + c_function_info, + } } /// Trampoline for fast-call FFI functions @@ -68,33 +81,33 @@ pub(crate) fn make_template( pub(crate) struct Trampoline(ExecutableBuffer); impl Trampoline { - fn ptr(&self) -> *const c_void { + pub(crate) fn ptr(&self) -> *const c_void { &self.0[0] as *const u8 as *const c_void } } -impl From<&NativeType> for fast_api::Type { +impl From<&NativeType> for fast_api::CTypeInfo { fn from(native_type: &NativeType) -> Self { match native_type { - NativeType::Bool => fast_api::Type::Bool, + NativeType::Bool => fast_api::Type::Bool.scalar(), NativeType::U8 | NativeType::U16 | NativeType::U32 => { - fast_api::Type::Uint32 + fast_api::Type::Uint32.scalar() } NativeType::I8 | NativeType::I16 | NativeType::I32 => { - fast_api::Type::Int32 + fast_api::Type::Int32.scalar() } - NativeType::F32 => fast_api::Type::Float32, - NativeType::F64 => fast_api::Type::Float64, - NativeType::Void => fast_api::Type::Void, - NativeType::I64 => fast_api::Type::Int64, - NativeType::U64 => fast_api::Type::Uint64, - NativeType::ISize => fast_api::Type::Int64, - NativeType::USize => fast_api::Type::Uint64, - NativeType::Pointer | NativeType::Function => fast_api::Type::Pointer, - NativeType::Buffer => fast_api::Type::TypedArray(fast_api::CType::Uint8), - NativeType::Struct(_) => { - fast_api::Type::TypedArray(fast_api::CType::Uint8) + NativeType::F32 => fast_api::Type::Float32.scalar(), + NativeType::F64 => fast_api::Type::Float64.scalar(), + NativeType::Void => fast_api::Type::Void.scalar(), + NativeType::I64 => fast_api::Type::Int64.scalar(), + NativeType::U64 => fast_api::Type::Uint64.scalar(), + NativeType::ISize => fast_api::Type::Int64.scalar(), + NativeType::USize => fast_api::Type::Uint64.scalar(), + NativeType::Pointer | NativeType::Function => { + fast_api::Type::Pointer.scalar() } + NativeType::Buffer => fast_api::Type::Uint8.typed_array(), + NativeType::Struct(_) => fast_api::Type::Uint8.typed_array(), } } } |