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