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Added alternate ways to specify directories to be monitored.

This commit is contained in:
hjp 2000-09-07 10:12:35 +00:00
parent bcd6a7e8bd
commit 321ed609ff
1 changed files with 118 additions and 38 deletions
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156
ddm/ddm.c
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@ -1,5 +1,5 @@
char ddm_c_rcs_id[] = char ddm_c_rcs_id[] =
"$Id: ddm.c,v 1.4 2000-06-04 16:33:21 hjp Exp $"; "$Id: ddm.c,v 1.5 2000-09-07 10:12:35 hjp Exp $";
/* /*
* ddm - disk delay monitor * ddm - disk delay monitor
* *
@ -7,8 +7,10 @@ char ddm_c_rcs_id[] =
* the equivalent of an ls -l. * the equivalent of an ls -l.
*/ */
#include <assert.h>
#include <errno.h> #include <errno.h>
#include <stdio.h> #include <stdio.h>
#include <stdarg.h>
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
@ -19,6 +21,10 @@ char ddm_c_rcs_id[] =
#include <unistd.h> #include <unistd.h>
#include <ant/da.h> #include <ant/da.h>
#include <ant/io.h>
#include <ant/globals.h>
typedef enum { MODE_NONE, MODE_ARGS, MODE_MNTTAB, MODE_DIRFILE } modeT;
static double gettimestamp(void) { static double gettimestamp(void) {
struct timeval tm; struct timeval tm;
@ -27,68 +33,141 @@ static double gettimestamp(void) {
return tm.tv_sec + tm.tv_usec/1E6; return tm.tv_sec + tm.tv_usec/1E6;
} }
static void usage(void) {
fprintf(stderr, "Usage: %s [-d dirfile | -m mnttab | directory ... ]\n",
cmnd);
exit(1);
}
void printtimestamp (const char *fmt, ...) {
static double lts = 0;
double ts = gettimestamp();
va_list ap;
fprintf(stderr, "%s: %.6f: %.6f: ", cmnd, ts, ts - lts);
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
lts = ts;
}
int main(int argc, char**argv) { int main(int argc, char**argv) {
char **dirs = NULL; char **dirs = NULL;
char **entries = NULL; modeT mode = MODE_NONE;
int nr_dirs;
int c;
char *filename = NULL;
cmnd = argv[0];
while ((c = getopt(argc, argv, "d:m:")) != EOF) {
switch (c) {
case 'd':
mode = MODE_DIRFILE;
filename = optarg;
break;
case 'm':
mode = MODE_MNTTAB;
filename = optarg;
break;
case '?':
usage();
default:
assert(0);
}
}
if (mode == MODE_NONE) {
if (optind == argc) {
mode = MODE_MNTTAB;
filename = MNTTAB;
} else {
mode = MODE_ARGS;
dirs = argv + optind;
nr_dirs = argc - optind;
}
} else {
if (optind != argc) usage();
}
for (;;) { for (;;) {
FILE *mtp;
struct mntent *me;
double ts;
int i; int i;
int nr_dirs;
int sleeptime; int sleeptime;
/* Get list of directories /* Get list of directories
*/ */
ts = gettimestamp(); switch (mode) {
fprintf(stderr, "%s: %.6f: open %s\n", argv[0], ts, MNTTAB); case MODE_MNTTAB: {
if ((mtp = setmntent(MNTTAB, "r")) == NULL) { FILE *mtp;
fprintf(stderr, "%s: cannot open %s: %s\n", struct mntent *me;
argv[0], MNTTAB, strerror(errno));
exit(1); printtimestamp("open %s\n", filename);
} if ((mtp = setmntent(filename, "r")) == NULL) {
for (i = 0;(me = getmntent(mtp)); i++) { fprintf(stderr, "%s: cannot open %s: %s\n",
DA_MKIND_INI(dirs, i, NULL); argv[0], filename, strerror(errno));
if (dirs[i]) free(dirs[i]); exit(1);
dirs[i] = strdup(me->mnt_dir); }
ts = gettimestamp(); for (i = 0;(me = getmntent(mtp)); i++) {
fprintf(stderr, "%s: %.6f: mountpoint %s\n", DA_MKIND_INI(dirs, i, NULL);
argv[0], ts, dirs[i]); if (dirs[i]) free(dirs[i]);
} dirs[i] = strdup(me->mnt_dir);
endmntent(mtp); printtimestamp("mountpoint %s\n", dirs[i]);
}
endmntent(mtp);
nr_dirs = i;
break;
}
case MODE_DIRFILE: {
FILE *fp;
char *p;
printtimestamp("open %s\n", filename);
fp = efopen(filename, "r");
for (i = 0;(p = getline(fp)); i++) {
DA_MKIND_INI(dirs, i, NULL);
if (dirs[i]) free(dirs[i]);
dirs[i] = strdup(p);
printtimestamp("directory %s\n", dirs[i]);
}
efclose(fp);
nr_dirs = i;
break;
}
case MODE_ARGS:
break;
default:
assert(0);
}
nr_dirs = i;
/* Now read them /* Now read them
*/ */
for (i = 0; i < nr_dirs; i++) { for (i = 0; i < nr_dirs; i++) {
int j; int j;
char **entries = NULL;
int nr_entries; int nr_entries;
DIR *dp; DIR *dp;
struct dirent *de; struct dirent *de;
fprintf(stderr, "%s: %.6f: start %s\n", printtimestamp("start %s\n", dirs[i]);
argv[0], gettimestamp(), dirs[i]);
if (chdir(dirs[i]) == -1) { if (chdir(dirs[i]) == -1) {
fprintf(stderr, "%s: %.6f: chdir %s failed: %s\n", printtimestamp("chdir %s failed: %s\n", dirs[i], strerror(errno));
argv[0], gettimestamp(), dirs[i], strerror(errno));
continue; continue;
} }
fprintf(stderr, "%s: %.6f: chdir %s ok\n", printtimestamp("chdir %s ok\n", dirs[i]);
argv[0], gettimestamp(), dirs[i]);
if ((dp = opendir(".")) == NULL) { if ((dp = opendir(".")) == NULL) {
fprintf(stderr, "%s: %.6f: opendir %s failed: %s\n", printtimestamp("opendir %s failed: %s\n", dirs[i], strerror(errno));
argv[0], gettimestamp(), dirs[i], strerror(errno));
continue; continue;
} }
for (j = 0;(de = readdir(dp)); j++) { for (j = 0;(de = readdir(dp)); j++) {
DA_MKIND_INI(entries, j, NULL); DA_MKIND_INI(entries, j, NULL);
if (entries[j]) free(entries[j]); if (entries[j]) free(entries[j]);
entries[j] = strdup(de->d_name); entries[j] = strdup(de->d_name);
fprintf(stderr, "%s: %.6f: entry %s\n", printtimestamp("entry %s\n", entries[j]);
argv[0], gettimestamp(), entries[j]);
} }
closedir(dp); closedir(dp);
nr_entries = j; nr_entries = j;
@ -96,16 +175,14 @@ int main(int argc, char**argv) {
for (j = 0; j < nr_entries; j++) { for (j = 0; j < nr_entries; j++) {
struct stat st; struct stat st;
stat (entries[j], &st); stat (entries[j], &st);
fprintf(stderr, "%s: %.6f: stat entry %s\n", printtimestamp("stat entry %s\n", entries[j]);
argv[0], gettimestamp(), entries[j]);
} }
} }
chdir("/"); chdir("/");
sleeptime = rand() * 3600.0 / RAND_MAX; sleeptime = rand() * 3600.0 / RAND_MAX;
fprintf(stderr, "%s: %.6f: sleeping %d seconds\n", printtimestamp("sleeping %d seconds\n", sleeptime);
argv[0], gettimestamp(), sleeptime);
sleep(sleeptime); sleep(sleeptime);
} }
@ -115,7 +192,10 @@ int main(int argc, char**argv) {
/* /*
* $Log: ddm.c,v $ * $Log: ddm.c,v $
* Revision 1.4 2000-06-04 16:33:21 hjp * Revision 1.5 2000-09-07 10:12:35 hjp
* Added alternate ways to specify directories to be monitored.
*
* Revision 1.4 2000/06/04 16:33:21 hjp
* Removed MNTTAB autodetection again as it seems to be already defined. * Removed MNTTAB autodetection again as it seems to be already defined.
* Don't skip rest of mountpoints if one is not accessible. * Don't skip rest of mountpoints if one is not accessible.
* chdir to / while sleeping to avoid blocking automounters * chdir to / while sleeping to avoid blocking automounters