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 #include <sys/ioctl.h>
16 #ifdef HAVE_MALLOC_H
17 #include <malloc.h>
18 #endif
19 #include <sys/resource.h>
20
21 #include "et/com_err.h"
22 #include "../version.h"
23
24 #include <stdio.h>
25 #include <string.h>
26 #include <unistd.h>
27 #include <stdlib.h>
28 #include <sys/stat.h>
29 #include <sys/types.h>
30 #include <sys/time.h>
31
32 #include "ext2fs/ext2_fs.h"
33 #include "ext2fs/ext2fs.h"
34
35
36 extern int isatty(int);
37
38 const char * device_name = NULL;
39
40 /*
41 * This structure is used for keeping track of how much resources have
42 * been used for a particular pass of e2fsck.
43 */
44 struct resource_track {
45 struct timeval time_start;
46 struct timeval user_start;
47 struct timeval system_start;
48 void *brk_start;
49 };
50
51 struct resource_track global_rtrack;
52
init_resource_track(struct resource_track * track)53 void init_resource_track(struct resource_track *track)
54 {
55 struct rusage r;
56
57 track->brk_start = sbrk(0);
58 gettimeofday(&track->time_start, 0);
59 getrusage(RUSAGE_SELF, &r);
60 track->user_start = r.ru_utime;
61 track->system_start = r.ru_stime;
62 }
63
timeval_subtract(struct timeval * tv1,struct timeval * tv2)64 static __inline__ float timeval_subtract(struct timeval *tv1,
65 struct timeval *tv2)
66 {
67 return ((tv1->tv_sec - tv2->tv_sec) +
68 ((float) (tv1->tv_usec - tv2->tv_usec)) / 1000000);
69 }
70
print_resource_track(struct resource_track * track)71 static void print_resource_track(struct resource_track *track)
72 {
73 struct rusage r;
74 struct timeval time_end;
75
76 gettimeofday(&time_end, 0);
77 getrusage(RUSAGE_SELF, &r);
78
79 printf(_("Memory used: %d, elapsed time: %6.3f/%6.3f/%6.3f\n"),
80 (int) (((char *) sbrk(0)) - ((char *) track->brk_start)),
81 timeval_subtract(&time_end, &track->time_start),
82 timeval_subtract(&r.ru_utime, &track->user_start),
83 timeval_subtract(&r.ru_stime, &track->system_start));
84 }
85
86
87
main(int argc,char * argv[])88 int main (int argc, char *argv[])
89 {
90 errcode_t retval = 0;
91 int exit_value = 0;
92 int i;
93 ext2_filsys fs;
94 ext2_inode_scan scan;
95 ext2_ino_t ino;
96 struct ext2_inode inode;
97
98 printf(_("size of inode=%d\n"), sizeof(inode));
99
100 device_name = "/dev/hda3";
101
102 init_resource_track(&global_rtrack);
103
104 retval = ext2fs_open(device_name, 0,
105 0, 0, unix_io_manager, &fs);
106 if (retval) {
107 com_err(argv[0], retval, _("while trying to open %s"),
108 device_name);
109 exit(1);
110 }
111
112 retval = ext2fs_open_inode_scan(fs, 0, &scan);
113 if (retval) {
114 com_err(argv[0], retval, _("while opening inode scan"));
115 exit(1);
116 }
117 retval = ext2fs_get_next_inode(scan, &ino, &inode);
118 if (retval) {
119 com_err(argv[0], retval, _("while starting inode scan"));
120 exit(1);
121 }
122 while (ino) {
123 if (!inode.i_links_count)
124 goto next;
125 printf("%lu\n", inode.i_blocks);
126 next:
127 retval = ext2fs_get_next_inode(scan, &ino, &inode);
128 if (retval) {
129 com_err(argv[0], retval,
130 _("while doing inode scan"));
131 exit(1);
132 }
133 }
134
135
136 ext2fs_close_free(&fs);
137
138 print_resource_track(&global_rtrack);
139
140 return exit_value;
141 }
142