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root/i-scream/projects/libstatgrab/examples/disk_traffic.c
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Comparing projects/libstatgrab/examples/disk_traffic.c (file contents):
Revision 1.2 by tdb, Sun Aug 24 20:24:09 2003 UTC vs.
Revision 1.6 by tdb, Fri Jan 16 15:54:52 2004 UTC

# Line 1 | Line 1
1   /*
2   * i-scream central monitoring system
3   * http://www.i-scream.org
4 < * Copyright (C) 2000-2003 i-scream
4 > * Copyright (C) 2000-2004 i-scream
5   *
6   * This program is free software; you can redistribute it and/or
7   * modify it under the terms of the GNU General Public License
# Line 22 | Line 22
22   * and diaply them. Also it adds up all the traffic to create and print out
23   * a total
24   * Takes several arguments :
25 < * -d <number>  Takes the number of seconds to wait to get traffic sent since last call
26 < *              Note, this is not disk traffic per second. Its the traffic since last
27 < *              call. If you want it traffic per second averaged over time since last call
25 > * -d <number>  Takes the number of seconds to wait to get traffic sent since last call
26 > *              Note, this is not disk traffic per second. Its the traffic since last
27 > *              call. If you want it traffic per second averaged over time since last call
28   *              You need to divide against the time since last time this was called. The time
29   *              between 2 calls is stored in systime in the disk_stat_t structure.
30   * -b           Display in bytes
31   * -k           Display in kilobytes
32 < * -m           Display in megabytes
32 > * -m           Display in megabytes
33   */
34  
35   #include <stdio.h>
# Line 51 | Line 51 | int main(int argc, char **argv){
51          int num_diskio_stats;
52  
53          /* Parse command line options */
54 <        while ((c = getopt(argc, argv, "d:bkm")) != EOF){
54 >        while ((c = getopt(argc, argv, "d:bkm")) != -1){
55                  switch (c){
56                          case 'd':
57                                  delay = atoi(optarg);
# Line 68 | Line 68 | int main(int argc, char **argv){
68                  }
69          }
70  
71 <        /* We are not intrested in the amount of traffic ever transmitted, just differences.
71 >        /* Initialise statgrab */
72 >        statgrab_init();
73 >
74 >        /* Drop setuid/setgid privileges. */
75 >        if (statgrab_drop_privileges() != 0) {
76 >                perror("Error. Failed to drop privileges");
77 >                return 1;
78 >        }
79 >
80 >        /* We are not interested in the amount of traffic ever transmitted, just differences.
81           * Because of this, we do nothing for the very first call.
82           */
83 <        
83 >
84          diskio_stats = get_diskio_stats_diff(&num_diskio_stats);
85          if (diskio_stats == NULL){
86                  perror("Error. Failed to get disk stats");
# Line 80 | Line 89 | int main(int argc, char **argv){
89  
90          /* Clear the screen ready for display the disk stats */
91          printf("\033[2J");
92 <        
92 >
93          /* Keep getting the disk stats */
94          while ( (diskio_stats = get_diskio_stats_diff(&num_diskio_stats)) != NULL){
95                  int x;
# Line 100 | Line 109 | int main(int argc, char **argv){
109                                          break;
110                                  case 'k':
111                                          printf("\033[%d;2H%-25s : %5lld k", line_number++, "Disk read", (diskio_stats->read_bytes / 1024));
112 <                                        printf("\033[%d;2H%-25s : %5lld", line_number++, "Disk write", (diskio_stats->write_bytes / 1024));
113 <                                        break;
112 >                                        printf("\033[%d;2H%-25s : %5lld", line_number++, "Disk write", (diskio_stats->write_bytes / 1024));
113 >                                        break;
114                                  case 'm':
115                                          printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Disk read", diskio_stats->read_bytes / (1024.00*1024.00));
116                                          printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Disk write", diskio_stats->write_bytes / (1024.00*1024.00));
117                          }
118                          printf("\033[%d;2H%-25s : %ld ", line_number++, "Disk systime", (long) diskio_stats->systime);
119 <                
119 >
120                          /* Add a blank line between interfaces */      
121                          line_number++;
122  
# Line 119 | Line 128 | int main(int argc, char **argv){
128                           * to keep track of the orginal pointer to free later */
129                          diskio_stats++;
130                  }
131 <                
131 >
132                  printf("\033[%d;2H%-25s : %-10s", line_number++, "Disk Name", "Total Disk IO");
133                  switch(units){
134                          case 'b':
# Line 135 | Line 144 | int main(int argc, char **argv){
144                                  printf("\033[%d;2H%-25s : %5.2f m", line_number++, "Disk Total write", (total_write  / (1024.00*1024.00)));
145                                  break;
146                  }
147 <                
147 >
148                  fflush(stdout);
149  
150                  sleep(delay);

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