120 lines
2.6 KiB
C
120 lines
2.6 KiB
C
char ddm_c_rcs_id[] =
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"$Id: ddm.c,v 1.1 2000-06-04 15:53:19 hjp Exp $";
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/*
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* ddm - disk delay monitor
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*
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* chdirs to a list of filesystems (mount points by default) and does
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* the equivalent of an ls -l.
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*/
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dirent.h>
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#include <mntent.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <unistd.h>
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#include <ant/da.h>
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static double gettimestamp(void) {
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struct timeval tm;
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gettimeofday(&tm, NULL);
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return tm.tv_sec + tm.tv_usec/1E6;
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}
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int main(int argc, char**argv) {
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char **dirs = NULL;
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char **entries = NULL;
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for (;;) {
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FILE *mtp;
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struct mntent *me;
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double ts;
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int i;
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int nr_dirs;
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int sleeptime;
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/* Get list of directories
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*/
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ts = gettimestamp();
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fprintf(stderr, "%s: %.6f: open /etc/mtab\n", argv[0], ts);
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if ((mtp = setmntent("/etc/mtab", "r")) == NULL) {
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fprintf(stderr, "%s: cannot open /etc/mtab: %s\n",
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argv[0], strerror(errno));
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exit(1);
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}
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for (i = 0;(me = getmntent(mtp)); i++) {
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DA_MKIND_INI(dirs, i, NULL);
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if (dirs[i]) free(dirs[i]);
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dirs[i] = strdup(me->mnt_dir);
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ts = gettimestamp();
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fprintf(stderr, "%s: %.6f: mountpoint %s\n",
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argv[0], ts, dirs[i]);
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}
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endmntent(mtp);
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nr_dirs = i;
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/* Now read them
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*/
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for (i = 0; i < nr_dirs; i++) {
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int j;
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int nr_entries;
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DIR *dp;
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struct dirent *de;
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fprintf(stderr, "%s: %.6f: start %s\n",
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argv[0], gettimestamp(), dirs[i]);
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if (chdir(dirs[i]) == -1) {
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fprintf(stderr, "%s: %.6f: chdir %s failed: %s\n",
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argv[0], gettimestamp(), dirs[i], strerror(errno));
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break;
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}
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fprintf(stderr, "%s: %.6f: chdir %s ok\n",
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argv[0], gettimestamp(), dirs[i]);
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if ((dp = opendir(".")) == NULL) {
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fprintf(stderr, "%s: %.6f: opendir %s failed: %s\n",
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argv[0], gettimestamp(), dirs[i], strerror(errno));
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break;
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}
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for (j = 0;(de = readdir(dp)); j++) {
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DA_MKIND_INI(entries, j, NULL);
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if (entries[j]) free(entries[j]);
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entries[j] = strdup(de->d_name);
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fprintf(stderr, "%s: %.6f: entry %s\n",
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argv[0], gettimestamp(), entries[j]);
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}
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closedir(dp);
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nr_entries = j;
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for (j = 0; j < nr_entries; j++) {
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struct stat st;
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stat (entries[j], &st);
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fprintf(stderr, "%s: %.6f: stat entry %s\n",
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argv[0], gettimestamp(), entries[j]);
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}
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}
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sleeptime = rand() * 60.0 / RAND_MAX;
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fprintf(stderr, "%s: %.6f: sleeping %d seconds\n",
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argv[0], gettimestamp(), sleeptime);
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sleep(sleeptime);
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}
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return 0;
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}
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/*
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* $Log: ddm.c,v $
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* Revision 1.1 2000-06-04 15:53:19 hjp
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* Pre-Version. Options are still missing.
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*
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*/
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