Struct wasmer_runtime_core::vm::Ctx

#[repr(C)]
pub struct Ctx {
    pub module: *const ModuleInner,
    pub data: *mut c_void,
    pub data_finalizer: Option<fn(data: *mut c_void)>,
    // some fields omitted
}

The context of the currently running WebAssembly instance.

Fields

module: *const ModuleInner

data: *mut c_void

data_finalizer: Option<fn(data: *mut c_void)>

Methods

impl Ctx

pub fn memory(&self, mem_index: u32) -> &Memory

This exposes the specified memory of the WebAssembly instance as a immutable slice.

WebAssembly will soon support multiple linear memories, so this forces the user to specify.

Usage:

fn read_memory(ctx: &Ctx) -> u8 {
    let first_memory = ctx.memory(0);
    // Read the first byte of that linear memory.
    first_memory.view()[0].get()
}

pub unsafe fn borrow_symbol_map(&self) -> &Option<HashMap<u32, String>>

Gives access to the emscripten symbol map, used for debugging

Trait Implementations

impl Debug for Ctx

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.