wasmtime_config_memory_init_cow_set function

  1. @Native<Void Function(Pointer<wasm_config_t>, Bool)>(ffi.Pointer<wasm_config_t>, ffi.Bool)>()
void wasmtime_config_memory_init_cow_set(
  1. Pointer<wasm_config_t> arg0,
  2. bool arg1
)

\brief Configures whether copy-on-write memory-mapped data is used to initialize a linear memory.

Initializing linear memory via a copy-on-write mapping can drastically improve instantiation costs of a WebAssembly module because copying memory is deferred. Additionally if a page of memory is only ever read from WebAssembly and never written too then the same underlying page of data will be reused between all instantiations of a module meaning that if a module is instantiated many times this can lower the overall memory required needed to run that module.

This option defaults to true.

For more information see the Rust documentation at https://docs.wasmtime.dev/api/wasmtime/struct.Config.html#method.memory_init_cow

Implementation

@ffi.Native<ffi.Void Function(ffi.Pointer<wasm_config_t>, ffi.Bool)>()
external void wasmtime_config_memory_init_cow_set(
  ffi.Pointer<wasm_config_t> arg0,
  bool arg1,
);