[−][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.

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Provided methods

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

Read memory from address into a vector.

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Trait Implementations

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

`fn read_primitive(&self, ptr: Pointer<u32>) -> Result<u32>`[src]

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

`fn read_primitive(&self, ptr: Pointer<u64>) -> Result<u64>`[src]

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

`fn write_primitive(&mut self, ptr: Pointer<u32>, t: u32) -> Result<()>`[src]

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

`fn write_primitive(&mut self, ptr: Pointer<u64>, t: u64) -> Result<()>`[src]

Implementors

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