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https://github.com/bytecodealliance/wasm-micro-runtime.git
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72 lines
1.5 KiB
C
72 lines
1.5 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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#include <stdint.h>
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#include <string.h>
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extern void *
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shared_heap_malloc(uint32_t size);
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extern void
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shared_heap_free(void *ptr);
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void *
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my_shared_heap_malloc(uint32_t size, uint32_t index)
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{
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char *buf1 = NULL, *buf2 = NULL, *buf;
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char *buf3 = NULL;
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buf3 = malloc(2048);
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buf1 = shared_heap_malloc(1024);
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if (!buf1)
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return NULL;
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buf1[0] = 'H';
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buf1[1] = 'e';
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buf1[2] = 'l';
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buf1[3] = 'l';
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buf1[4] = 'o';
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buf1[5] = ',';
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buf1[6] = ' ';
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buf2 = shared_heap_malloc(1024);
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if (!buf2) {
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shared_heap_free(buf1);
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return NULL;
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}
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snprintf(buf2, 1024, "this is buf %u allocated from shared heap", index);
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buf = shared_heap_malloc(size);
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if (!buf) {
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shared_heap_free(buf1);
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shared_heap_free(buf2);
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return NULL;
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}
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memset(buf, 0, size);
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memcpy(buf, buf1, strlen(buf1));
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memcpy(buf + strlen(buf1), buf2, strlen(buf2));
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uint32_t max_value = UINT32_MAX;
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char *address = (char *)max_value;
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printf("The address of buf1, buf2, buf, UINT32_MAX is: %p,%p,%p,%p\n", buf1,
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buf2, buf, address);
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address[0] = 'c';
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printf("The content address of UINT32_MAX is: %c\n", *address);
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shared_heap_free(buf1);
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shared_heap_free(buf2);
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return buf;
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}
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void
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my_shared_heap_free(void *ptr)
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{
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shared_heap_free(ptr);
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}
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