80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <errno.h>
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#include "fastcommon/common_define.h"
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#include "test_types.h"
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typedef struct {
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int bytes;
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char *filename;
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} TestFileInfo;
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TestFileInfo files[FILE_TYPE_COUNT] = {
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{5 * 1024, "5K"},
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{50 * 1024, "50K"},
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{200 * 1024, "200K"},
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{1 * 1024 * 1024, "1M"},
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{10 * 1024 * 1024, "10M"},
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{100 * 1024 * 1024, "100M"}
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};
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int main()
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{
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#define BUFF_SIZE (1 * 1024)
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int i;
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int k;
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int loop;
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FILE *fp;
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unsigned char buff[BUFF_SIZE];
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unsigned char *p;
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unsigned char *pEnd;
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srand(SRAND_SEED);
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pEnd = buff + BUFF_SIZE;
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for (i=0; i<FILE_TYPE_COUNT; i++)
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{
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fp = fopen(files[i].filename, "wb");
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if (fp == NULL)
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{
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printf("open file %s fail, errno: %d, error info: %s\n",
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files[i].filename, errno, STRERROR(errno));
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return 1;
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}
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loop = files[i].bytes / BUFF_SIZE;
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for (k=0; k<loop-1; k++)
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{
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for (p=buff; p<pEnd; p++)
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{
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*p = (int)(255 * ((double)rand() / RAND_MAX));
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}
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if (fwrite(buff, BUFF_SIZE, 1, fp) != 1)
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{
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printf("write file %s fail, errno: %d, error info: %s\n",
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files[i].filename, errno, STRERROR(errno));
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fclose(fp);
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return 1;
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}
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}
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memset(buff, 0xFF, BUFF_SIZE);
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if (fwrite(buff, BUFF_SIZE, 1, fp) != 1)
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{
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printf("write file %s fail, errno: %d, error info: %s\n",
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files[i].filename, errno, STRERROR(errno));
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fclose(fp);
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return 1;
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}
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fclose(fp);
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}
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printf("done.\n");
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return 0;
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}
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