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960b613d10
Real world native libs likely need to access the wasm_runtime_xxx API. This example demonstrates it. Build vmlib as a shared lib to make it straightforward to share a single runtime instance between iwasm and native libs.
71 lines
1.6 KiB
C
71 lines
1.6 KiB
C
/*
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* Copyright (C) 2019 Intel Corporation. All rights reserved.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*/
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#include <stdio.h>
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#include <stdlib.h>
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int
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test_add(int x, int y);
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int
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test_sqrt(int x, int y);
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int
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test_hello(const char *name, char *buf, size_t buflen);
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int
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test_hello2(const char *name, char *buf, size_t buflen);
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int
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main(int argc, char **argv)
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{
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const char *name = __func__;
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char *buf;
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size_t buflen;
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int x = 10, y = 20, res;
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printf("Hello World!\n");
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res = test_add(x, y);
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printf("%d + %d = %d\n", x, y, res);
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res = test_sqrt(x, y);
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printf("sqrt(%d, %d) = %d\n", x, y, res);
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res = test_hello(name, NULL, 0);
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printf("test_hello(\"%s\", %p, %zu) = %d\n", name, NULL, (size_t)0, res);
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if (res == -1) {
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return -1;
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}
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buflen = res + 1;
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buf = malloc(buflen);
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printf("malloc(%zu) = %p\n", buflen, buf);
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res = test_hello(__func__, buf, buflen);
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if (res == -1) {
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return -1;
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}
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printf("test_hello(\"%s\", %p, %zu) = %d\n", name, buf, buflen, res);
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printf("Message from test_hello: %s", buf);
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free(buf);
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res = test_hello2(name, NULL, 0);
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printf("test_hello2(\"%s\", %p, %zu) = %d\n", name, NULL, (size_t)0, res);
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if (res == -1) {
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return -1;
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}
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buflen = res + 1;
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buf = malloc(buflen);
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printf("malloc(%zu) = %p\n", buflen, buf);
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res = test_hello2(__func__, buf, buflen);
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if (res == -1) {
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return -1;
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}
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printf("test_hello2(\"%s\", %p, %zu) = %d\n", name, buf, buflen, res);
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printf("Message from test_hello2: %s", buf);
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free(buf);
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return 0;
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}
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