TBBT/trace_play/init_holder.c

   1 #include <stdio.h>
   2 #include <sys/stat.h>
   3 #include <fcntl.h>
   4 #define FILE_NUM 25000
   5 #define DIR_NUM 1
   6 #define FILE_SIZE 40960
   7
   8 int print_usage()
   9 {
  10         printf("init_holder DIR_NUM HOLDER_NUM HOLDER_SIZE testdir\n");
  11 }
  12
  13 main4(int argc, char ** argv)
  14 {
  15         int i, j;
  16         char name[256];
  17         char cmd[1024];
  18         char buf[FILE_SIZE];
  19         int fd, ret;
  20         char testdir[1024];
  21
  22         if (argc!=5) {
  23                 print_usage();
  24                 exit (-1);
  25         }
  26         if (DIR_NUM !=1) {
  27                 for (i=0; i<DIR_NUM; i++) {
  28                         memset (name, 0, sizeof(name));
  29                         sprintf(name, "%s/%d", testdir, i);
  30                         ret = mkdir (name, S_IRWXU);
  31                         if (ret == -1) {
  32                                 perror(name);
  33                                 exit(-1);
  34                         }
  35                 }
  36         }
  37
  38         for (j=0; j<DIR_NUM; j++) {
  39                 for (i=0; i<FILE_NUM/DIR_NUM; i++) {
  40                         if (DIR_NUM == 1)
  41                                 sprintf(name, "%s/%d", testdir, i);
  42                         else
  43                                 sprintf(name, "%s/%d/%d", testdir, j, i);
  44                         fd = open (name, O_CREAT|O_WRONLY);
  45                         if (fd == -1) {
  46                                 perror(name);
  47                                 exit(-1);
  48                         }
  49                         ret = write (fd, buf, FILE_SIZE );
  50                         close (fd);
  51                         if (ret!=FILE_SIZE) {
  52                                 printf("try to write %d , get %d\n", SIZE, ret);
  53                                 exit (-1);
  54                         }
  55                 }
  56         }
  57 }