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72 lines
1.2 KiB
C
72 lines
1.2 KiB
C
/* radare - LGPL - Copyright 2007-2009 pancake<nopcode.org> */
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/* simple example testing the r_alloca api */
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#include <r_util.h>
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#include <stdio.h>
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#define TIMES 299999
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int afun(const char *str, int iters)
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{
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int ret;
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char *ptr;
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if (iters == 0) return 0;
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ret = strlen(str)+1;
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ptr = alloca(ret);
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memcpy(ptr, str, ret);
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return afun(str, iters-1);
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}
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int fun(const char *str, int iters)
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{
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int ret;
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char *ptr;
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if (iters == 0) return 0;
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ptr = (char *)r_alloca_str(str);
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ret = fun(str, iters-1);
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return r_alloca_ret_i( ret );
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}
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/* malloc */
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int mfun(const char *str, int iters)
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{
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int ret;
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char *ptr;
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if (iters == 0) return 0;
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ptr = strdup(str);
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ret = mfun(ptr, iters-1);
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free(ptr);
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return ret;
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}
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/* main */
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int main()
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{
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int i;
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printf("Running r_alloca performance test...\n");
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fflush(stdout);
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system("date");
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r_alloca_init();
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for (i=0;i<TIMES;i++)
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fun("food for the heap", 128);
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system("date");
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printf("\n--\nRunning malloc performance test...\n");
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system("date");
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r_alloca_init();
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for (i=0;i<TIMES;i++)
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mfun("food for the heap", 128);
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system("date");
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printf("\n--\nRunning alloc performance test...\n");
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system("date");
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r_alloca_init();
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for (i=0;i<TIMES;i++)
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afun("food for the stack", 128);
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system("date");
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fflush(stdout);
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}
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