Function callback

example/threads.c:16–20

A function to be called from Wasm code.

// A function to be called from Wasm code.
own wasm_trap_t* callback(const wasm_val_vec_t* args, wasm_val_vec_t* results) {
  assert(args->data[0].kind == WASM_I32);
  printf("> Thread %d running\n", args->data[0].of.i32);
  return NULL;
}


typedef struct {