e2fsck/scantest.c

   1 /*
   2  * scantest.c - test the speed of the inode scan routine
   3  */
   4
   5 #include "config.h"
   6 #include <string.h>
   7 #include <fcntl.h>
   8 #include <ctype.h>
   9 #include <termios.h>
  10 #include <time.h>
  11 #ifdef HAVE_GETOPT_H
  12 #include <getopt.h>
  13 #endif
  14 #include <unistd.h>
  15 #ifdef HAVE_MNTENT_H
  16 #include <mntent.h>
  17 #endif
  18 #include <sys/ioctl.h>
  19 #ifdef HAVE_MALLOC_H
  20 #include <malloc.h>
  21 #endif
  22 #include <sys/resource.h>
  23
  24 #include "et/com_err.h"
  25 #include "../version.h"
  26
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <unistd.h>
  30 #include <stdlib.h>
  31 #include <sys/stat.h>
  32 #include <sys/types.h>
  33 #include <sys/time.h>
  34
  35 #include "ext2fs/ext2_fs.h"
  36 #include "ext2fs/ext2fs.h"
  37
  38
  39 extern int isatty(int);
  40
  41 const char * device_name = NULL;
  42
  43 /*
  44  * This structure is used for keeping track of how much resources have
  45  * been used for a particular pass of e2fsck.
  46  */
  47 struct resource_track {
  48         struct timeval time_start;
  49         struct timeval user_start;
  50         struct timeval system_start;
  51         void    *brk_start;
  52 };
  53
  54 struct resource_track   global_rtrack;
  55
  56 void init_resource_track(struct resource_track *track)
  57 {
  58         struct rusage r;
  59
  60         track->brk_start = sbrk(0);
  61         gettimeofday(&track->time_start, 0);
  62         getrusage(RUSAGE_SELF, &r);
  63         track->user_start = r.ru_utime;
  64         track->system_start = r.ru_stime;
  65 }
  66
  67 static __inline__ float timeval_subtract(struct timeval *tv1,
  68                                          struct timeval *tv2)
  69 {
  70         return ((tv1->tv_sec - tv2->tv_sec) +
  71                 ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
  72 }
  73
  74 static void print_resource_track(struct resource_track *track)
  75 {
  76         struct rusage r;
  77         struct timeval time_end;
  78
  79         gettimeofday(&time_end, 0);
  80         getrusage(RUSAGE_SELF, &r);
  81
  82         printf(_("Memory used: %d, elapsed time: %6.3f/%6.3f/%6.3f\n"),
  83                (int) (((char *) sbrk(0)) - ((char *) track->brk_start)),
  84                timeval_subtract(&time_end, &track->time_start),
  85                timeval_subtract(&r.ru_utime, &track->user_start),
  86                timeval_subtract(&r.ru_stime, &track->system_start));
  87 }
  88
  89
  90
  91 int main (int argc, char *argv[])
  92 {
  93         errcode_t       retval = 0;
  94         int             exit_value = 0;
  95         int             i;
  96         ext2_filsys     fs;
  97         ext2_inode_scan scan;
  98         ext2_ino_t      ino;
  99         struct ext2_inode inode;
 100
 101         printf(_("size of inode=%d\n"), sizeof(inode));
 102
 103         device_name = "/dev/hda3";
 104
 105         init_resource_track(&global_rtrack);
 106
 107         retval = ext2fs_open(device_name, 0,
 108                              0, 0, unix_io_manager, &fs);
 109         if (retval) {
 110                 com_err(argv[0], retval, _("while trying to open %s"),
 111                         device_name);
 112                 exit(1);
 113         }
 114
 115         retval = ext2fs_open_inode_scan(fs, 0, &scan);
 116         if (retval) {
 117                 com_err(argv[0], retval, _("while opening inode scan"));
 118                 exit(1);
 119         }
 120         retval = ext2fs_get_next_inode(scan, &ino, &inode);
 121         if (retval) {
 122                 com_err(argv[0], retval, _("while starting inode scan"));
 123                 exit(1);
 124         }
 125         while (ino) {
 126                 if (!inode.i_links_count)
 127                         goto next;
 128                 printf("%lu\n", inode.i_blocks);
 129         next:
 130                 retval = ext2fs_get_next_inode(scan, &ino, &inode);
 131                 if (retval) {
 132                         com_err(argv[0], retval,
 133                                 _("while doing inode scan"));
 134                         exit(1);
 135                 }
 136         }
 137
 138
 139         ext2fs_close(fs);
 140
 141         print_resource_track(&global_rtrack);
 142
 143         return exit_value;
 144 }