orca/ext/wasm3/source/extensions/wasm3_ext.h

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2023-04-12 14:21:03 +00:00
//
// Wasm3, high performance WebAssembly interpreter
//
// Extensions
//
// Copyright © 2019-2021 Steven Massey, Volodymyr Shymanskyy.
// All rights reserved.
//
#ifndef wasm3_ext_h
#define wasm3_ext_h
#include "wasm3.h"
#include <stdbool.h>
#if defined(__cplusplus)
extern "C" {
#endif
//-------------------------------------------------------------------------------------------------------------------------------
// API extensions
//-------------------------------------------------------------------------------------------------------------------------------
/*
These extensions allow for unconventional uses of Wasm3 -- mainly dynamic modification of modules to inject new Wasm
functions during runtime.
*/
//-------------------------------------------------------------------------------------------------------------------------------
// Creates an empty module.
IM3Module m3_NewModule (IM3Environment i_environment);
// To append a new function, set io_functionIndex to negative. On return, the new function index will be set.
// To overwrite an existing function, set io_functionIndex to the desired element. i_signature must match the existing
// function signature.
// ** InjectFunction invalidates any existing IM3Function pointers
M3Result m3_InjectFunction (IM3Module i_module,
int32_t * io_functionIndex,
const char * const i_signature,
const uint8_t * const i_wasmBytes, // i_wasmBytes is copied
bool i_doCompilation);
IM3Function m3_GetFunctionByIndex (IM3Module i_module,
uint32_t i_index);
#if defined(__cplusplus)
}
#endif
#endif // wasm3_h