/*
- * udevsettle.c
- *
* Copyright (C) 2006 Kay Sievers <kay@vrfy.org>
*
* This program is free software; you can redistribute it and/or modify it
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#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, ...)
-{
- va_list args;
-
- if (priority > udev_log_priority)
- return;
-
- va_start(args, format);
- vsyslog(priority, format, args);
- va_end(args);
-}
-#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");
goto exit;
}
- /* read current kernel seqnum */
- strlcpy(filename, sysfs_path, sizeof(filename));
- strlcat(filename, "/kernel/uevent_seqnum", sizeof(filename));
+ /* read current udev seqnum */
+ strlcpy(filename, udev_root, sizeof(filename));
+ strlcat(filename, "/" EVENT_SEQNUM, sizeof(filename));
fd = open(filename, O_RDONLY);
if (fd < 0)
goto exit;
if (len <= 0)
goto exit;
seqnum[len] = '\0';
- seq_kernel = strtoull(seqnum, NULL, 10);
- info("kernel seqnum = %llu", seq_kernel);
+ seq_udev = strtoull(seqnum, NULL, 10);
+ info("udev seqnum = %llu\n", seq_udev);
- /* read current udev seqnum */
- strlcpy(filename, udev_root, sizeof(filename));
- strlcat(filename, "/" EVENT_SEQNUM, sizeof(filename));
+ /* read current kernel seqnum */
+ strlcpy(filename, sysfs_path, sizeof(filename));
+ strlcat(filename, "/kernel/uevent_seqnum", sizeof(filename));
fd = open(filename, O_RDONLY);
if (fd < 0)
goto exit;
if (len <= 0)
goto exit;
seqnum[len] = '\0';
- seq_udev = strtoull(seqnum, NULL, 10);
- info("udev seqnum = %llu", seq_udev);
+ seq_kernel = strtoull(seqnum, NULL, 10);
+ 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: