[−][src]Trait sp_wasm_interface::FunctionContext

pub trait FunctionContext {
    fn read_memory_into(
        &self, 
        address: Pointer<u8>, 
        dest: &mut [u8]
    ) -> Result<()>;

    fn write_memory(&mut self, address: Pointer<u8>, data: &[u8]) -> Result<()>;

    fn allocate_memory(&mut self, size: WordSize) -> Result<Pointer<u8>>;

    fn deallocate_memory(&mut self, ptr: Pointer<u8>) -> Result<()>;

    fn sandbox(&mut self) -> &mut dyn Sandbox;

    fn read_memory(
        &self, 
        address: Pointer<u8>, 
        size: WordSize
    ) -> Result<Vec<u8>> { ... }
}
[−]

Context used by Function to interact with the allocator and the memory of the wasm instance.

Required methods

fn read_memory_into(&self, address: Pointer<u8>, dest: &mut [u8]) -> Result<()>[−]

Read memory into the given dest buffer from address.

fn write_memory(&mut self, address: Pointer<u8>, data: &[u8]) -> Result<()>[−]

Write the given data at address into the memory.

fn allocate_memory(&mut self, size: WordSize) -> Result<Pointer<u8>>[−]

Allocate a memory instance of size bytes.

fn deallocate_memory(&mut self, ptr: Pointer<u8>) -> Result<()>[−]

Deallocate a given memory instance.

fn sandbox(&mut self) -> &mut dyn Sandbox[−]

Provides access to the sandbox.

Provided methods

fn read_memory(&self, address: Pointer<u8>, size: WordSize) -> Result<Vec<u8>>[−]

Read memory from address into a vector.

Trait Implementations

impl<'_> ReadPrimitive<u32> for &'_ mut dyn FunctionContext[src][+]

impl<'_> ReadPrimitive<u64> for &'_ mut dyn FunctionContext[src][+]

impl<'_> WritePrimitive<u32> for &'_ mut dyn FunctionContext[src][+]

impl<'_> WritePrimitive<u64> for &'_ mut dyn FunctionContext[src][+]

Implementors