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Merge #807

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807: Implement Send for Instance r=MarkMcCaskey a=MarkMcCaskey

# Review

- [x] Create a short description of the the change in the CHANGELOG.md file

Resolves #748 

WIP

## List of changes
### Commit 1
- `Global`s use Arc instead of RC
- Export `Context` and `FuncPointer` manually implement Send
- `ImportObject` uses `Arc<Mutex<HashMap<...>>>` Instead of `Rc<RefCell<HashMap<...>>>`; removed `get_namespace` method in favor of continuation style to deal with locking the Mutex
- `Func` manually implements `Send` (TODO: this change needs to be checked in depth)
### Commit 2
- `unsafe impl Send for Export {}` (temporary to allow Memory to be not Send)
- RefCell -> Mutex in Global and Table
- Rc -> Arc in Table
- Namespace's `IsExport`s must be `Send` (Done to avoid touching much more of the code (i.e. `trait IsExport: Send` requires a lot -- maybe this is what we should do though)
- Make `Host` and `Wasm` `Func`s Send (manual implementation)
- Manual implementation for `LocalTable` and `AnyFunc`
### Commit 3
- rm placeholder `unsafe impl Send for Export {}`
- Manual implementation for `LocalBacking` and `ImportBacking` (both seemed to be not Send due to direct ownership of mutable pointers in their containers)
- ImportObject's state creator Fn trait object is now ` + Send + Sync + 'static` (required because it's in an Arc)
- Manually implement Send for `InstanceInner` because it holds a raw pointer, `LocalBacking` and `ImportBacking` are marked Send separately 
- Memory: All Rc -> Arc (including unshared memory); All RefCell -> Mutex (including unshared memory)
- Manual implementation of Send and Sync on `UnsharedMemoryInternal`
- Manual implementation of Send and Sync on `SharedMemoryInternal`
- Change `runtime-core::unix::memory::Memory.fd` from `Option<Rc<Rawfd>>` to `Option<Arc<Rawfd>>` (not strictly required for this change because Memory has manual implementations of Send and Sync, but Arc seems more correct here and there's no comment justifying the use of Rc)
- Manual implementation of Send for `ImportedFunc`

Co-authored-by: Mark McCaskey <mark@wasmer.io>
Co-authored-by: Mark McCaskey <markmccaskey@users.noreply.github.com>
This commit is contained in:
bors[bot]
2019-09-23 21:20:01 +00:00
committed by GitHub
parent eed033021b 9cab6d721f
commit 8c5ccdb497
12 changed files with 291 additions and 211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
CHANGELOG.md
View File

@ -6,6 +6,7 @@ Blocks of changes will separated by version increments.
## **[Unreleased]**
- [#807](https://github.com/wasmerio/wasmer/pull/807) Implement Send for `Instance`, breaking change on `ImportObject`, remove method `get_namespace` replaced with `with_namespace` and `maybe_with_namespace`
- [#817](https://github.com/wasmerio/wasmer/pull/817) Add document for tracking features across backends and language integrations, [docs/feature_matrix.md]
- [#823](https://github.com/wasmerio/wasmer/issues/823) Improved Emscripten / WASI integration
- [#821](https://github.com/wasmerio/wasmer/issues/821) Remove patch version on most deps Cargo manifests. This gives Wasmer library users more control over which versions of the deps they use.

26
lib/runtime-core/src/backing.rs
View File

@ -54,6 +54,9 @@ pub struct LocalBacking {
pub(crate) internals: Internals,
}
// Manually implemented because LocalBacking contains raw pointers directly
unsafe impl Send for LocalBacking {}
impl LocalBacking {
pub(crate) fn new(
module: &ModuleInner,
@ -461,6 +464,9 @@ pub struct ImportBacking {
pub(crate) vm_globals: BoxedMap<ImportedGlobalIndex, *mut vm::LocalGlobal>,
}
// manually implemented because ImportBacking contains raw pointers directly
unsafe impl Send for ImportBacking {}
impl ImportBacking {
pub fn new(
module: &ModuleInner,
@ -536,9 +542,8 @@ fn import_functions(
let namespace = module.info.namespace_table.get(*namespace_index);
let name = module.info.name_table.get(*name_index);
let import = imports
.get_namespace(namespace)
.and_then(|namespace| namespace.get_export(name));
let import =
imports.maybe_with_namespace(namespace, |namespace| namespace.get_export(name));
match import {
Some(Export::Function {
func,
@ -624,9 +629,8 @@ fn import_memories(
let namespace = module.info.namespace_table.get(*namespace_index);
let name = module.info.name_table.get(*name_index);
let memory_import = imports
.get_namespace(&namespace)
.and_then(|namespace| namespace.get_export(&name));
let memory_import =
imports.maybe_with_namespace(namespace, |namespace| namespace.get_export(name));
match memory_import {
Some(Export::Memory(memory)) => {
if expected_memory_desc.fits_in_imported(memory.descriptor()) {
@ -696,9 +700,8 @@ fn import_tables(
let namespace = module.info.namespace_table.get(*namespace_index);
let name = module.info.name_table.get(*name_index);
let table_import = imports
.get_namespace(&namespace)
.and_then(|namespace| namespace.get_export(&name));
let table_import =
imports.maybe_with_namespace(namespace, |namespace| namespace.get_export(name));
match table_import {
Some(Export::Table(mut table)) => {
if expected_table_desc.fits_in_imported(table.descriptor()) {
@ -767,9 +770,8 @@ fn import_globals(
{
let namespace = module.info.namespace_table.get(*namespace_index);
let name = module.info.name_table.get(*name_index);
let import = imports
.get_namespace(namespace)
.and_then(|namespace| namespace.get_export(name));
let import =
imports.maybe_with_namespace(namespace, |namespace| namespace.get_export(name));
match import {
Some(Export::Global(mut global)) => {
if global.descriptor() == *imported_global_desc {

6
lib/runtime-core/src/export.rs
View File

@ -11,6 +11,9 @@ pub enum Context {
Internal,
}
// Manually implemented because context contains a raw pointer to Ctx
unsafe impl Send for Context {}
#[derive(Debug, Clone)]
pub enum Export {
Function {
@ -26,6 +29,9 @@ pub enum Export {
#[derive(Debug, Clone)]
pub struct FuncPointer(*const vm::Func);
// Manually implemented because FuncPointer contains a raw pointer to Ctx
unsafe impl Send for FuncPointer {}
impl FuncPointer {
/// This needs to be unsafe because there is
/// no way to check whether the passed function

21
lib/runtime-core/src/global.rs
View File

@ -4,11 +4,14 @@ use crate::{
types::{GlobalDescriptor, Type, Value},
vm,
};
use std::{cell::RefCell, fmt, rc::Rc};
use std::{
fmt,
sync::{Arc, Mutex},
};
pub struct Global {
desc: GlobalDescriptor,
storage: Rc<RefCell<vm::LocalGlobal>>,
storage: Arc<Mutex<vm::LocalGlobal>>,
}
impl Global {
@ -56,7 +59,7 @@ impl Global {
Self {
desc,
storage: Rc::new(RefCell::new(local_global)),
storage: Arc::new(Mutex::new(local_global)),
}
}
@ -83,7 +86,8 @@ impl Global {
Value::V128(x) => x,
},
};
*self.storage.borrow_mut() = local_global;
let mut storage = self.storage.lock().unwrap();
*storage = local_global;
} else {
panic!("Wrong type for setting this global")
}
@ -94,7 +98,8 @@ impl Global {
/// Get the value held by this global.
pub fn get(&self) -> Value {
let data = self.storage.borrow().data;
let storage = self.storage.lock().unwrap();
let data = storage.data;
match self.desc.ty {
Type::I32 => Value::I32(data as i32),
@ -105,8 +110,10 @@ impl Global {
}
}
// TODO: think about this and if this should now be unsafe
pub(crate) fn vm_local_global(&mut self) -> *mut vm::LocalGlobal {
&mut *self.storage.borrow_mut()
let mut storage = self.storage.lock().unwrap();
&mut *storage
}
}
@ -120,7 +127,7 @@ impl Clone for Global {
fn clone(&self) -> Self {
Self {
desc: self.desc,
storage: Rc::clone(&self.storage),
storage: Arc::clone(&self.storage),
}
}
}

93
lib/runtime-core/src/import.rs
View File

@ -2,9 +2,9 @@ use crate::export::Export;
use std::collections::VecDeque;
use std::collections::{hash_map::Entry, HashMap};
use std::{
cell::{Ref, RefCell},
borrow::{Borrow, BorrowMut},
ffi::c_void,
rc::Rc,
sync::{Arc, Mutex},
};
pub trait LikeNamespace {
@ -45,8 +45,9 @@ impl IsExport for Export {
/// }
/// ```
pub struct ImportObject {
map: Rc<RefCell<HashMap<String, Box<dyn LikeNamespace>>>>,
pub(crate) state_creator: Option<Rc<dyn Fn() -> (*mut c_void, fn(*mut c_void))>>,
map: Arc<Mutex<HashMap<String, Box<dyn LikeNamespace + Send>>>>,
pub(crate) state_creator:
Option<Arc<dyn Fn() -> (*mut c_void, fn(*mut c_void)) + Send + Sync + 'static>>,
pub allow_missing_functions: bool,
}
@ -54,7 +55,7 @@ impl ImportObject {
/// Create a new `ImportObject`.
pub fn new() -> Self {
Self {
map: Rc::new(RefCell::new(HashMap::new())),
map: Arc::new(Mutex::new(HashMap::new())),
state_creator: None,
allow_missing_functions: false,
}
@ -62,11 +63,11 @@ impl ImportObject {
pub fn new_with_data<F>(state_creator: F) -> Self
where
F: Fn() -> (*mut c_void, fn(*mut c_void)) + 'static,
F: Fn() -> (*mut c_void, fn(*mut c_void)) + 'static + Send + Sync,
{
Self {
map: Rc::new(RefCell::new(HashMap::new())),
state_creator: Some(Rc::new(state_creator)),
map: Arc::new(Mutex::new(HashMap::new())),
state_creator: Some(Arc::new(state_creator)),
allow_missing_functions: false,
}
}
@ -92,9 +93,10 @@ impl ImportObject {
pub fn register<S, N>(&mut self, name: S, namespace: N) -> Option<Box<dyn LikeNamespace>>
where
S: Into<String>,
N: LikeNamespace + 'static,
N: LikeNamespace + Send + 'static,
{
let mut map = self.map.borrow_mut();
let mut guard = self.map.lock().unwrap();
let map = guard.borrow_mut();
match map.entry(name.into()) {
Entry::Vacant(empty) => {
@ -105,19 +107,39 @@ impl ImportObject {
}
}
pub fn get_namespace(&self, namespace: &str) -> Option<Ref<dyn LikeNamespace + 'static>> {
let map_ref = self.map.borrow();
/// Apply a function on the namespace if it exists
/// If your function can fail, consider using `maybe_with_namespace`
pub fn with_namespace<Func, InnerRet>(&self, namespace: &str, f: Func) -> Option<InnerRet>
where
Func: FnOnce(&(dyn LikeNamespace + Send)) -> InnerRet,
InnerRet: Sized,
{
let guard = self.map.lock().unwrap();
let map_ref = guard.borrow();
if map_ref.contains_key(namespace) {
Some(Ref::map(map_ref, |map| &*map[namespace]))
Some(f(map_ref[namespace].as_ref()))
} else {
None
}
}
/// The same as `with_namespace` but takes a function that may fail
pub fn maybe_with_namespace<Func, InnerRet>(&self, namespace: &str, f: Func) -> Option<InnerRet>
where
Func: FnOnce(&(dyn LikeNamespace + Send)) -> Option<InnerRet>,
InnerRet: Sized,
{
let guard = self.map.lock().unwrap();
let map_ref = guard.borrow();
map_ref
.get(namespace)
.map(|ns| ns.as_ref())
.and_then(|ns| f(ns))
}
pub fn clone_ref(&self) -> Self {
Self {
map: Rc::clone(&self.map),
map: Arc::clone(&self.map),
state_creator: self.state_creator.clone(),
allow_missing_functions: false,
}
@ -125,7 +147,9 @@ impl ImportObject {
fn get_objects(&self) -> VecDeque<(String, String, Export)> {
let mut out = VecDeque::new();
for (name, ns) in self.map.borrow().iter() {
let guard = self.map.lock().unwrap();
let map = guard.borrow();
for (name, ns) in map.iter() {
for (id, exp) in ns.get_exports() {
out.push_back((name.clone(), id, exp));
}
@ -158,7 +182,8 @@ impl IntoIterator for ImportObject {
impl Extend<(String, String, Export)> for ImportObject {
fn extend<T: IntoIterator<Item = (String, String, Export)>>(&mut self, iter: T) {
let mut map = self.map.borrow_mut();
let mut guard = self.map.lock().unwrap();
let map = guard.borrow_mut();
for (ns, id, exp) in iter.into_iter() {
if let Some(like_ns) = map.get_mut(&ns) {
like_ns.maybe_insert(&id, exp);
@ -172,7 +197,7 @@ impl Extend<(String, String, Export)> for ImportObject {
}
pub struct Namespace {
map: HashMap<String, Box<dyn IsExport>>,
map: HashMap<String, Box<dyn IsExport + Send>>,
}
impl Namespace {
@ -182,10 +207,10 @@ impl Namespace {
}
}
pub fn insert<S, E>(&mut self, name: S, export: E) -> Option<Box<dyn IsExport>>
pub fn insert<S, E>(&mut self, name: S, export: E) -> Option<Box<dyn IsExport + Send>>
where
S: Into<String>,
E: IsExport + 'static,
E: IsExport + Send + 'static,
{
self.map.insert(name.into(), Box::new(export))
}
@ -241,12 +266,14 @@ mod test {
imports1.extend(imports2);
let cat_ns = imports1.get_namespace("cat").unwrap();
assert!(cat_ns.get_export("small").is_some());
let small_cat_export =
imports1.maybe_with_namespace("cat", |cat_ns| cat_ns.get_export("small"));
assert!(small_cat_export.is_some());
let dog_ns = imports1.get_namespace("dog").unwrap();
assert!(dog_ns.get_export("happy").is_some());
assert!(dog_ns.get_export("small").is_some());
let entries = imports1.maybe_with_namespace("dog", |dog_ns| {
Some((dog_ns.get_export("happy")?, dog_ns.get_export("small")?))
});
assert!(entries.is_some());
}
#[test]
@ -264,14 +291,14 @@ mod test {
};
imports1.extend(imports2);
let dog_ns = imports1.get_namespace("dog").unwrap();
let happy_dog_entry = imports1
.maybe_with_namespace("dog", |dog_ns| dog_ns.get_export("happy"))
.unwrap();
assert!(
if let Export::Global(happy_dog_global) = dog_ns.get_export("happy").unwrap() {
happy_dog_global.get() == Value::I32(4)
} else {
false
}
);
assert!(if let Export::Global(happy_dog_global) = happy_dog_entry {
happy_dog_global.get() == Value::I32(4)
} else {
false
});
}
}

43
lib/runtime-core/src/instance.rs
View File

@ -16,7 +16,12 @@ use crate::{
vm::{self, InternalField},
};
use smallvec::{smallvec, SmallVec};
use std::{mem, pin::Pin, ptr::NonNull, sync::Arc};
use std::{
mem,
pin::Pin,
ptr::NonNull,
sync::{Arc, Mutex},
};
pub(crate) struct InstanceInner {
#[allow(dead_code)]
@ -25,6 +30,9 @@ pub(crate) struct InstanceInner {
pub(crate) vmctx: *mut vm::Ctx,
}
// manually implemented because InstanceInner contains a raw pointer to Ctx
unsafe impl Send for InstanceInner {}
impl Drop for InstanceInner {
fn drop(&mut self) {
// Drop the vmctx.
@ -517,6 +525,27 @@ impl LikeNamespace for Rc<Instance> {
}
}
impl LikeNamespace for Arc<Mutex<Instance>> {
fn get_export(&self, name: &str) -> Option<Export> {
let instance = self.lock().unwrap();
let export_index = instance.module.info.exports.get(name)?;
Some(
instance
.inner
.get_export_from_index(&instance.module, export_index),
)
}
fn get_exports(&self) -> Vec<(String, Export)> {
unimplemented!("Use the exports method instead");
}
fn maybe_insert(&mut self, _name: &str, _export: Export) -> Option<()> {
None
}
}
#[must_use]
fn call_func_with_index(
info: &ModuleInfo,
@ -763,3 +792,15 @@ impl<'a> DynFunc<'a> {
}
}
}
#[cfg(test)]
mod test {
use super::*;
fn is_send<T: Send>() {}
#[test]
fn test_instance_is_send() {
is_send::<Instance>();
}
}

42
lib/runtime-core/src/memory/mod.rs
View File

@ -8,12 +8,9 @@ use crate::{
units::Pages,
vm,
};
use std::{
cell::{Cell, RefCell},
fmt, mem,
rc::Rc,
sync::Arc,
};
use std::{cell::Cell, fmt, mem, sync::Arc};
use std::sync::Mutex as StdMutex;
pub use self::dynamic::DynamicMemory;
pub use self::static_::StaticMemory;
@ -208,14 +205,18 @@ enum UnsharedMemoryStorage {
}
pub struct UnsharedMemory {
internal: Rc<UnsharedMemoryInternal>,
internal: Arc<UnsharedMemoryInternal>,
}
struct UnsharedMemoryInternal {
storage: RefCell<UnsharedMemoryStorage>,
storage: StdMutex<UnsharedMemoryStorage>,
local: Cell<vm::LocalMemory>,
}
// Manually implemented because UnsharedMemoryInternal uses `Cell` and is used in an Arc;
// this is safe because the lock for storage can be used to protect (seems like a weak reason: PLEASE REVIEW!)
unsafe impl Sync for UnsharedMemoryInternal {}
impl UnsharedMemory {
pub fn new(desc: MemoryDescriptor) -> Result<Self, CreationError> {
let mut local = vm::LocalMemory {
@ -235,15 +236,15 @@ impl UnsharedMemory {
};
Ok(Self {
internal: Rc::new(UnsharedMemoryInternal {
storage: RefCell::new(storage),
internal: Arc::new(UnsharedMemoryInternal {
storage: StdMutex::new(storage),
local: Cell::new(local),
}),
})
}
pub fn grow(&self, delta: Pages) -> Result<Pages, GrowError> {
let mut storage = self.internal.storage.borrow_mut();
let mut storage = self.internal.storage.lock().unwrap();
let mut local = self.internal.local.get();
@ -260,7 +261,7 @@ impl UnsharedMemory {
}
pub fn size(&self) -> Pages {
let storage = self.internal.storage.borrow();
let storage = self.internal.storage.lock().unwrap();
match &*storage {
UnsharedMemoryStorage::Dynamic(ref dynamic_memory) => dynamic_memory.size(),
@ -276,7 +277,7 @@ impl UnsharedMemory {
impl Clone for UnsharedMemory {
fn clone(&self) -> Self {
UnsharedMemory {
internal: Rc::clone(&self.internal),
internal: Arc::clone(&self.internal),
}
}
}
@ -286,11 +287,15 @@ pub struct SharedMemory {
}
pub struct SharedMemoryInternal {
memory: RefCell<Box<StaticMemory>>,
memory: StdMutex<Box<StaticMemory>>,
local: Cell<vm::LocalMemory>,
lock: Mutex<()>,
}
// Manually implemented because SharedMemoryInternal uses `Cell` and is used in Arc;
// this is safe because of `lock`; accesing `local` without locking `lock` is not safe (Maybe we could put the lock on Local then?)
unsafe impl Sync for SharedMemoryInternal {}
impl SharedMemory {
fn new(desc: MemoryDescriptor) -> Result<Self, CreationError> {
let mut local = vm::LocalMemory {
@ -303,7 +308,7 @@ impl SharedMemory {
Ok(Self {
internal: Arc::new(SharedMemoryInternal {
memory: RefCell::new(memory),
memory: StdMutex::new(memory),
local: Cell::new(local),
lock: Mutex::new(()),
}),
@ -313,15 +318,18 @@ impl SharedMemory {
pub fn grow(&self, delta: Pages) -> Result<Pages, GrowError> {
let _guard = self.internal.lock.lock();
let mut local = self.internal.local.get();
let pages = self.internal.memory.borrow_mut().grow(delta, &mut local);
let mut memory = self.internal.memory.lock().unwrap();
let pages = memory.grow(delta, &mut local);
pages
}
pub fn size(&self) -> Pages {
let _guard = self.internal.lock.lock();
self.internal.memory.borrow_mut().size()
let memory = self.internal.memory.lock().unwrap();
memory.size()
}
// This function is scary, because the mutex is not locked here
pub(crate) fn vm_local_memory(&self) -> *mut vm::LocalMemory {
self.internal.local.as_ptr()
}

6
lib/runtime-core/src/sys/unix/memory.rs
View File

@ -4,7 +4,7 @@ use errno;
use nix::libc;
use page_size;
use std::ops::{Bound, RangeBounds};
use std::{fs::File, os::unix::io::IntoRawFd, path::Path, ptr, rc::Rc, slice};
use std::{fs::File, os::unix::io::IntoRawFd, path::Path, ptr, slice, sync::Arc};
unsafe impl Send for Memory {}
unsafe impl Sync for Memory {}
@ -14,7 +14,7 @@ pub struct Memory {
ptr: *mut u8,
size: usize,
protection: Protect,
fd: Option<Rc<RawFd>>,
fd: Option<Arc<RawFd>>,
}
impl Memory {
@ -49,7 +49,7 @@ impl Memory {
ptr: ptr as *mut u8,
size: file_len as usize,
protection,
fd: Some(Rc::new(raw_fd)),
fd: Some(Arc::new(raw_fd)),
})
}
}

26
lib/runtime-core/src/table/mod.rs
View File

@ -5,7 +5,10 @@ use crate::{
types::{ElementType, TableDescriptor},
vm,
};
use std::{cell::RefCell, fmt, ptr, rc::Rc};
use std::{
fmt, ptr,
sync::{Arc, Mutex},
};
mod anyfunc;
@ -25,7 +28,7 @@ pub enum TableStorage {
pub struct Table {
desc: TableDescriptor,
storage: Rc<RefCell<(TableStorage, vm::LocalTable)>>,
storage: Arc<Mutex<(TableStorage, vm::LocalTable)>>,
}
impl Table {
@ -71,7 +74,7 @@ impl Table {
Ok(Self {
desc,
storage: Rc::new(RefCell::new((storage, local))),
storage: Arc::new(Mutex::new((storage, local))),
})
}
@ -82,7 +85,8 @@ impl Table {
/// Set the element at index.
pub fn set(&self, index: u32, element: Element) -> Result<(), ()> {
match &mut *self.storage.borrow_mut() {
let mut storage = self.storage.lock().unwrap();
match &mut *storage {
(TableStorage::Anyfunc(ref mut anyfunc_table), _) => {
match element {
Element::Anyfunc(anyfunc) => anyfunc_table.set(index, anyfunc),
@ -96,14 +100,16 @@ impl Table {
where
F: FnOnce(&mut [vm::Anyfunc]) -> R,
{
match &mut *self.storage.borrow_mut() {
let mut storage = self.storage.lock().unwrap();
match &mut *storage {
(TableStorage::Anyfunc(ref mut anyfunc_table), _) => f(anyfunc_table.internal_buffer()),
}
}
/// The current size of this table.
pub fn size(&self) -> u32 {
match &*self.storage.borrow() {
let storage = self.storage.lock().unwrap();
match &*storage {
(TableStorage::Anyfunc(ref anyfunc_table), _) => anyfunc_table.current_size(),
}
}
@ -114,7 +120,8 @@ impl Table {
return Ok(self.size());
}
match &mut *self.storage.borrow_mut() {
let mut storage = self.storage.lock().unwrap();
match &mut *storage {
(TableStorage::Anyfunc(ref mut anyfunc_table), ref mut local) => anyfunc_table
.grow(delta, local)
.ok_or(GrowError::TableGrowError),
@ -122,7 +129,8 @@ impl Table {
}
pub fn vm_local_table(&mut self) -> *mut vm::LocalTable {
&mut self.storage.borrow_mut().1
let mut storage = self.storage.lock().unwrap();
&mut storage.1
}
}
@ -136,7 +144,7 @@ impl Clone for Table {
fn clone(&self) -> Self {
Self {
desc: self.desc,
storage: Rc::clone(&self.storage),
storage: Arc::clone(&self.storage),
}
}
}

3
lib/runtime-core/src/typed_func.rs
View File

@ -165,6 +165,9 @@ pub struct Func<'a, Args = (), Rets = (), Inner: Kind = Wasm> {
_phantom: PhantomData<(&'a (), Args, Rets)>,
}
unsafe impl<'a, Args, Rets> Send for Func<'a, Args, Rets, Wasm> {}
unsafe impl<'a, Args, Rets> Send for Func<'a, Args, Rets, Host> {}
impl<'a, Args, Rets> Func<'a, Args, Rets, Wasm>
where
Args: WasmTypeList,

12
lib/runtime-core/src/vm.rs
View File

@ -513,6 +513,9 @@ pub struct ImportedFunc {
pub vmctx: *mut Ctx,
}
// manually implemented because ImportedFunc contains raw pointers directly; `Func` is marked Send (But `Ctx` actually isn't! (TODO: review this, shouldn't `Ctx` be Send?))
unsafe impl Send for ImportedFunc {}
impl ImportedFunc {
#[allow(clippy::erasing_op)] // TODO
pub fn offset_func() -> u8 {
@ -540,6 +543,9 @@ pub struct LocalTable {
pub table: *mut (),
}
// manually implemented because LocalTable contains raw pointers directly
unsafe impl Send for LocalTable {}
impl LocalTable {
#[allow(clippy::erasing_op)] // TODO
pub fn offset_base() -> u8 {
@ -569,6 +575,9 @@ pub struct LocalMemory {
pub memory: *mut (),
}
// manually implemented because LocalMemory contains raw pointers
unsafe impl Send for LocalMemory {}
impl LocalMemory {
#[allow(clippy::erasing_op)] // TODO
pub fn offset_base() -> u8 {
@ -619,6 +628,9 @@ pub struct Anyfunc {
pub sig_id: SigId,
}
// manually implemented because Anyfunc contains raw pointers directly
unsafe impl Send for Anyfunc {}
impl Anyfunc {
pub fn null() -> Self {
Self {

223
lib/spectests/tests/spectest.rs
View File

@ -18,7 +18,7 @@ mod tests {
// TODO Files could be run with multiple threads
// TODO Allow running WAST &str directly (E.g. for use outside of spectests)
use std::rc::Rc;
use std::sync::{Arc, Mutex};
struct SpecFailure {
file: String,
@ -119,6 +119,24 @@ mod tests {
"unknown"
}
fn with_instance<F, R>(
maybe_instance: Option<Arc<Mutex<Instance>>>,
named_modules: &HashMap<String, Arc<Mutex<Instance>>>,
module: &Option<String>,
f: F,
) -> Option<R>
where
R: Sized,
F: FnOnce(&Instance) -> R,
{
let ref ins = module
.as_ref()
.and_then(|name| named_modules.get(name).cloned())
.or(maybe_instance)?;
let guard = ins.lock().unwrap();
Some(f(guard.borrow()))
}
use glob::glob;
use std::collections::HashMap;
use std::fs;
@ -173,11 +191,11 @@ mod tests {
.expect(&format!("Failed to parse script {}", &filename));
use std::panic;
let mut instance: Option<Rc<Instance>> = None;
let mut instance: Option<Arc<Mutex<Instance>>> = None;
let mut named_modules: HashMap<String, Rc<Instance>> = HashMap::new();
let mut named_modules: HashMap<String, Arc<Mutex<Instance>>> = HashMap::new();
let mut registered_modules: HashMap<String, Rc<Instance>> = HashMap::new();
let mut registered_modules: HashMap<String, Arc<Mutex<Instance>>> = HashMap::new();
//
while let Some(Command { kind, line }) =
@ -236,9 +254,9 @@ mod tests {
instance = None;
}
Ok(i) => {
let i = Rc::new(i);
let i = Arc::new(Mutex::new(i));
if name.is_some() {
named_modules.insert(name.unwrap(), Rc::clone(&i));
named_modules.insert(name.unwrap(), Arc::clone(&i));
}
instance = Some(i);
}
@ -251,20 +269,17 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
let maybe_call_result = with_instance(
instance.clone(),
&named_modules,
&module,
|instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
},
};
if instance.is_none() {
);
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -276,9 +291,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
match call_result {
Err(e) => {
test_report.add_failure(
@ -316,20 +329,17 @@ mod tests {
}
}
Action::Get { module, field } => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
let maybe_call_result = with_instance(
instance.clone(),
&named_modules,
&module,
|instance| {
instance
.get_export(&field)
.expect(&format!("missing global {:?}", &field))
},
};
if instance.is_none() {
);
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -341,10 +351,7 @@ mod tests {
excludes,
);
} else {
let export: Export = instance
.unwrap()
.get_export(&field)
.expect(&format!("missing global {:?}", &field));
let export: Export = maybe_call_result.unwrap();
match export {
Export::Global(g) => {
let value = g.get();
@ -392,20 +399,13 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
},
};
if instance.is_none() {
let maybe_call_result =
with_instance(instance.clone(), &named_modules, &module, |instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
});
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -417,9 +417,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
match call_result {
Err(e) => {
test_report.add_failure(
@ -468,20 +466,13 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
},
};
if instance.is_none() {
let maybe_call_result =
with_instance(instance.clone(), &named_modules, &module, |instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
});
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -493,9 +484,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
match call_result {
Err(e) => {
test_report.add_failure(
@ -544,20 +533,13 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
},
};
if instance.is_none() {
let maybe_call_result =
with_instance(instance.clone(), &named_modules, &module, |instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
});
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -569,9 +551,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
use wasmer_runtime_core::error::{CallError, RuntimeError};
match call_result {
Err(e) => {
@ -749,20 +729,17 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
let maybe_call_result = with_instance(
instance.clone(),
&named_modules,
&module,
|instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
},
};
if instance.is_none() {
);
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -774,9 +751,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
match call_result {
Err(_e) => {
// TODO is specific error required?
@ -871,16 +846,16 @@ mod tests {
}
}
CommandKind::Register { name, as_name } => {
let instance: Option<Rc<Instance>> = match name {
let instance: Option<Arc<Mutex<Instance>>> = match name {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(Rc::clone(ins)),
Some(ins) => Some(Arc::clone(ins)),
None => None,
}
}
None => match instance {
Some(ref i) => Some(Rc::clone(i)),
Some(ref i) => Some(Arc::clone(i)),
None => None,
},
};
@ -906,21 +881,13 @@ mod tests {
field,
args,
} => {
let instance: Option<&Instance> = match module {
Some(ref name) => {
let i = named_modules.get(name);
match i {
Some(ins) => Some(ins.borrow()),
None => None,
}
}
None => match instance {
Some(ref i) => Some(i.borrow()),
None => None,
},
};
if instance.is_none() {
let maybe_call_result =
with_instance(instance.clone(), &named_modules, &module, |instance| {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(convert_value).collect();
instance.call(&field, &params[..])
});
if maybe_call_result.is_none() {
test_report.add_failure(
SpecFailure {
file: filename.to_string(),
@ -932,9 +899,7 @@ mod tests {
excludes,
);
} else {
let params: Vec<wasmer_runtime_core::types::Value> =
args.iter().cloned().map(|x| convert_value(x)).collect();
let call_result = instance.unwrap().call(&field, &params[..]);
let call_result = maybe_call_result.unwrap();
match call_result {
Err(e) => {
test_report.add_failure(
@ -1054,7 +1019,7 @@ mod tests {
}
fn get_spectest_import_object(
registered_modules: &HashMap<String, Rc<Instance>>,
registered_modules: &HashMap<String, Arc<Mutex<Instance>>>,
) -> ImportObject {
let memory = Memory::new(MemoryDescriptor {
minimum: Pages(1),
@ -1091,7 +1056,7 @@ mod tests {
};
for (name, instance) in registered_modules.iter() {
import_object.register(name.clone(), Rc::clone(instance));
import_object.register(name.clone(), Arc::clone(instance));
}
import_object
}