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 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 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 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 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