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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
/*
* This example basically does the same thing as test_hello.c,
* using wasm_export.h API.
*/
#include <stdio.h>
#include <stdlib.h>
#include "wasm_export.h"
static int
test_hello2_wrapper(wasm_exec_env_t exec_env, uint32_t nameaddr,
uint32_t resultaddr, uint32_t resultlen)
{
/*
* Perform wasm_runtime_malloc to check if the runtime has been
* initialized as expected.
* This would fail with "memory hasn't been initialize" error
* unless we are not sharing a runtime with the loader app. (iwasm)
*/
void *p = wasm_runtime_malloc(1);
if (p == NULL) {
return -1;
}
wasm_runtime_free(p);
wasm_module_inst_t inst = wasm_runtime_get_module_inst(exec_env);
if (!wasm_runtime_validate_app_str_addr(inst, nameaddr)
|| !wasm_runtime_validate_app_addr(inst, resultaddr, resultlen)) {
return -1;
}
const char *name = wasm_runtime_addr_app_to_native(inst, nameaddr);
char *result = wasm_runtime_addr_app_to_native(inst, resultaddr);
return snprintf(result, resultlen,
"Hello, %s. This is %s! Your wasm_module_inst_t is %p.\n",
name, __func__, inst);
}
/* clang-format off */
#define REG_NATIVE_FUNC(func_name, signature) \
{ #func_name, func_name##_wrapper, signature, NULL }
static NativeSymbol native_symbols[] = {
REG_NATIVE_FUNC(test_hello2, "(iii)i")
};
/* clang-format on */
uint32_t
get_native_lib(char **p_module_name, NativeSymbol **p_native_symbols)
{
*p_module_name = "env";
*p_native_symbols = native_symbols;
return sizeof(native_symbols) / sizeof(NativeSymbol);
}
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