mirror of
https://github.com/fluencelabs/wasmer
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43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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/*
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* Copyright 2016 The Emscripten Authors. All rights reserved.
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* Emscripten is available under two separate licenses, the MIT license and the
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* University of Illinois/NCSA Open Source License. Both these licenses can be
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* found in the LICENSE file.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "emscripten.h"
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int main(int argc, char **argv)
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{
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char *buf1 = (char*)malloc(100);
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char *data1 = (char*)"hello";
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memcpy(buf1, data1, strlen(data1)+1);
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float *buf2 = (float*)malloc(100);
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float pie = 4.955;
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memcpy(buf2, &pie, sizeof(float));
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printf("*pre: %s,%.3f*\n", buf1, buf2[0]);
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int totalMemory = emscripten_run_script_int("TOTAL_MEMORY");
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char *buf3 = (char*)malloc(totalMemory+1);
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buf3[argc] = (int)buf2;
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if (argc % 7 == 6) printf("%d\n", (int)memcpy(buf3, buf1, argc));
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char *buf4 = (char*)malloc(100);
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float *buf5 = (float*)malloc(100);
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//printf("totalMemory: %d bufs: %d,%d,%d,%d,%d\n", totalMemory, buf1, buf2, buf3, buf4, buf5);
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assert((int)buf4 > (int)totalMemory && (int)buf5 > (int)totalMemory);
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printf("*%s,%.3f*\n", buf1, buf2[0]); // the old heap data should still be there
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memcpy(buf4, buf1, strlen(data1)+1);
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memcpy(buf5, buf2, sizeof(float));
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printf("*%s,%.3f*\n", buf4, buf5[0]); // and the new heap space should work too
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return 0;
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}
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