fluencelabs/marine
1
0
Fork 0
mirror of https://github.com/fluencelabs/marine.git synced 2024-12-12 14:55:32 +00:00
Code Issues Projects Releases Wiki Activity

add more comments

Browse Source
This commit is contained in:
vms 2020-05-08 22:48:36 +03:00
parent d94a20f0ed
commit a18d35580c
1 changed files with 16 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
src/vm/module/fce_module.rs
View File

@ -26,25 +26,25 @@ use wasmer_runtime_core::import::ImportObject;
use wasmer_runtime_core::memory::ptr::{Array, WasmPtr}; use wasmer_runtime_core::memory::ptr::{Array, WasmPtr};
use wasmer_wasi::generate_import_object_for_version; use wasmer_wasi::generate_import_object_for_version;
/// Desribes Application Binary Interface of a module. /// Describes Application Binary Interface of a module.
/// For more details see comment in abi.rs. /// For more details see comment in abi.rs.
#[derive(Clone)] #[derive(Clone)]
pub(crate) struct ABI<'a> { pub(crate) struct ABI {
// It is safe to use unwrap() while calling these functions because Option is used here // It is safe to use unwrap() while calling these functions because Option is used here
// just to allow partially initialization. And all Option fields will contain Some if // just to allow partially initialization. And all Option fields will contain Some if
// invoking FCE::new has been succeed. // invoking FCE::new has been succeed.
pub(crate) allocate: Option<Func<'a, i32, i32>>, pub(crate) allocate: Option<Func<'static, i32, i32>>,
pub(crate) deallocate: Option<Func<'a, (i32, i32), ()>>, pub(crate) deallocate: Option<Func<'static, (i32, i32), ()>>,
pub(crate) invoke: Option<Func<'a, (i32, i32), i32>>, pub(crate) invoke: Option<Func<'static, (i32, i32), i32>>,
pub(crate) store: Option<Func<'a, (i32, i32)>>, pub(crate) store: Option<Func<'static, (i32, i32)>>,
pub(crate) load: Option<Func<'a, i32, i32>>, pub(crate) load: Option<Func<'static, i32, i32>>,
} }
/// A building block of multi-modules scheme of FCE, represents one module that corresponds /// A building block of multi-modules scheme of FCE, represents one module that corresponds
/// to a one Wasm file. /// to a one Wasm file.
pub(crate) struct FCEModule { pub(crate) struct FCEModule {
instance: Instance, instance: Instance,
abi: ABI<'static>, abi: ABI,
} }
impl FCEModule { impl FCEModule {
@ -75,7 +75,8 @@ impl FCEModule {
} }
#[rustfmt::skip] #[rustfmt::skip]
fn create_abi(instance: &Instance, config: &Config) -> Result<ABI<'static>, FCEError> { /// Extracts ABI from a module.
fn create_abi(instance: &Instance, config: &Config) -> Result<ABI, FCEError> {
unsafe { unsafe {
let allocate = std::mem::transmute::<Func<'_, i32, i32>, Func<'static, i32, i32>>( let allocate = std::mem::transmute::<Func<'_, i32, i32>, Func<'static, i32, i32>>(
instance.exports.get(&config.allocate_fn_name)? instance.exports.get(&config.allocate_fn_name)?
@ -107,7 +108,10 @@ impl FCEModule {
} }
} }
pub fn get_abi(&self) -> &ABI<'static> { /// Returns ABI of a module.
/// (!) Be carefull and delete all instances of ABI before dropping corresponding module.
/// There is no any internal ref counter due to the internals of Wasmer.
pub fn get_abi(&self) -> &ABI {
&self.abi &self.abi
} }
@ -193,6 +197,7 @@ impl ModuleAPI for FCEModule {
} }
} }
#[rustfmt::skip]
impl ModuleABI for FCEModule { impl ModuleABI for FCEModule {
fn allocate(&self, size: i32) -> Result<i32, FCEError> { fn allocate(&self, size: i32) -> Result<i32, FCEError> {
Ok(self.abi.allocate.as_ref().unwrap().call(size)?) Ok(self.abi.allocate.as_ref().unwrap().call(size)?)
@ -203,12 +208,7 @@ impl ModuleABI for FCEModule {
} }
fn invoke(&self, arg_address: i32, arg_size: i32) -> Result<i32, FCEError> { fn invoke(&self, arg_address: i32, arg_size: i32) -> Result<i32, FCEError> {
Ok(self Ok(self.abi.invoke.as_ref().unwrap().call(arg_address, arg_size)?)
.abi
.invoke
.as_ref()
.unwrap()
.call(arg_address, arg_size)?)
} }
fn store(&self, address: i32, value: i32) -> Result<(), FCEError> { fn store(&self, address: i32, value: i32) -> Result<(), FCEError> {