70 строки
1.6 KiB
C
70 строки
1.6 KiB
C
#include "zlib.h"
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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// don't inline, to be friendly to js engine osr
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void __attribute__ ((noinline)) doit(char *buffer, int size, int i) {
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static char *buffer2 = NULL;
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static char *buffer3 = NULL;
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unsigned long maxCompressedSize = compressBound(size);
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if (!buffer2) buffer2 = (char*)malloc(maxCompressedSize);
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if (!buffer3) buffer3 = (char*)malloc(size);
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unsigned long compressedSize = maxCompressedSize;
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compress(buffer2, &compressedSize, buffer, size);
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if (i == 0) printf("sizes: %d,%d\n", size, compressedSize);
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unsigned long decompressedSize = size;
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uncompress(buffer3, &decompressedSize, buffer2, compressedSize);
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assert(decompressedSize == size);
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if (i == 0) assert(strcmp(buffer, buffer3) == 0);
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}
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int main(int argc, char **argv) {
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int size, iters;
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int arg = argc > 1 ? argv[1][0] - '0' : 3;
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switch(arg) {
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case 0: return 0; break;
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case 1: size = 100000; iters = 60; break;
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case 2: size = 100000; iters = 250; break;
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case 3: size = 100000; iters = 500; break;
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case 4: size = 100000; iters = 5*500; break;
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case 5: size = 100000; iters = 10*500; break;
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default: printf("error: %d\\n", arg); return -1;
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}
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char *buffer = malloc(size);
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int i = 0;
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int run = 0;
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char runChar = 17;
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while (i < size) {
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if (run > 0) {
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run--;
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} else {
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if ((i & 7) == 0) {
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runChar = i & 7;
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run = i & 31;
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} else {
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runChar = (i*i) % 6714;
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}
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}
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buffer[i] = runChar;
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i++;
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}
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for (i = 0; i < iters; i++) {
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doit(buffer, size, i);
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}
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printf("ok.\n");
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return 0;
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}
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