#include <dirent.h>
#include <fcntl.h>
#include <syslog.h>
+#include <getopt.h>
#include <sys/stat.h>
#include <sys/types.h>
#define DEFAULT_TIMEOUT 180
#define LOOP_PER_SECOND 20
-
-#ifdef USE_LOG
-void log_message(int priority, const char *format, ...)
+static void print_queue(const char *dir)
{
- va_list args;
+ LIST_HEAD(files);
+ struct name_entry *item;
- if (priority > udev_log_priority)
+ if (add_matching_files(&files, dir, NULL) < 0)
return;
- va_start(args, format);
- vsyslog(priority, format, args);
- va_end(args);
+ printf("\n\nAfter the udevadm settle timeout, the events queue contains:\n\n");
+
+ list_for_each_entry(item, &files, node) {
+ char target[NAME_SIZE];
+ size_t len;
+ const char *filename = strrchr(item->name, '/');
+
+ if (filename == NULL)
+ continue;
+ filename++;
+ if (*filename == '\0')
+ continue;
+
+ len = readlink(item->name, target, sizeof(target));
+ if (len < 0)
+ continue;
+ target[len] = '\0';
+
+ printf("%s: %s\n", filename, target);
+ }
+
+ printf("\n\n");
}
-#endif
-int main(int argc, char *argv[], char *envp[])
+int udevsettle(int argc, char *argv[], char *envp[])
{
char queuename[PATH_SIZE];
char filename[PATH_SIZE];
ssize_t len;
int timeout = DEFAULT_TIMEOUT;
int loop;
- int i;
+ static const struct option options[] = {
+ { "timeout", 1, NULL, 't' },
+ { "help", 0, NULL, 'h' },
+ {}
+ };
+ int option;
int rc = 1;
+ int seconds;
logging_init("udevsettle");
udev_config_init();
- dbg("version %s", UDEV_VERSION);
+ dbg("version %s\n", UDEV_VERSION);
sysfs_init();
- for (i = 1 ; i < argc; i++) {
- char *arg = argv[i];
-
- if (strncmp(arg, "--timeout=", 10) == 0) {
- char *str = &arg[10];
- int seconds;
+ while (1) {
+ option = getopt_long(argc, argv, "t:h", options, NULL);
+ if (option == -1)
+ break;
- seconds = atoi(str);
+ switch (option) {
+ case 't':
+ seconds = atoi(optarg);
if (seconds > 0)
timeout = seconds;
else
fprintf(stderr, "invalid timeout value\n");
- dbg("timeout=%i", timeout);
- } else if (strcmp(arg, "--help") == 0 || strcmp(arg, "-h") == 0) {
- printf("Usage: udevsettle [--help] [--timeout=<seconds>]\n");
+ dbg("timeout=%i\n", timeout);
+ break;
+ case 'h':
+ printf("Usage: udevadm settle [--help] [--timeout=<seconds>]\n\n");
goto exit;
- } else {
- fprintf(stderr, "unrecognized option '%s'\n", arg);
- err("unrecognized option '%s'\n", arg);
}
}
struct stat statbuf;
if (stat(queuename, &statbuf) < 0) {
- info("queue is empty");
+ info("queue is empty\n");
break;
}
usleep(1000 * 1000 / LOOP_PER_SECOND);
}
if (loop <= 0) {
- info("timeout waiting for queue");
+ info("timeout waiting for queue\n");
+ print_queue(queuename);
goto exit;
}
goto exit;
seqnum[len] = '\0';
seq_udev = strtoull(seqnum, NULL, 10);
- info("udev seqnum = %llu", seq_udev);
+ info("udev seqnum = %llu\n", seq_udev);
/* read current kernel seqnum */
strlcpy(filename, sysfs_path, sizeof(filename));
goto exit;
seqnum[len] = '\0';
seq_kernel = strtoull(seqnum, NULL, 10);
- info("kernel seqnum = %llu", seq_kernel);
+ info("kernel seqnum = %llu\n", seq_kernel);
/* make sure all kernel events have arrived in the queue */
if (seq_udev >= seq_kernel) {
- info("queue is empty and no pending events left");
+ info("queue is empty and no pending events left\n");
rc = 0;
goto exit;
}
usleep(1000 * 1000 / LOOP_PER_SECOND);
- info("queue is empty, but events still pending");
+ info("queue is empty, but events still pending\n");
}
exit: