- /* get state of ipc queue */
- retval = msgctl(msgid, IPC_STAT, &msg_queue);
- if (retval == -1) {
- dbg("error getting info on ipc queue");
- goto exit;
- }
- if (msg_queue.msg_qnum > 0)
- dbg("%li messages already in the ipc queue", msg_queue.msg_qnum);
-
- /* send ipc message to the daemon */
- retval = msgsnd(msgid, pmsg, size, 0);
- free_hotplugmsg( (struct hotplug_msg*) pmsg);
- if (retval == -1) {
- dbg("error sending ipc message");
- goto exit;
+ memset(&saddr, 0x00, sizeof(saddr));
+ saddr.sun_family = AF_LOCAL;
+ /* use abstract namespace for socket path */
+ strcpy(&saddr.sun_path[1], UDEVD_SOCK_PATH);
+ addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
+
+ size = build_hotplugmsg(&msg, action, devpath, subsystem, seq);
+
+ /* If we can't send, try to start daemon and resend message */
+ loop = UDEVSEND_CONNECT_RETRY;
+ while (loop--) {
+ retval = sendto(sock, &msg, size, 0, (struct sockaddr *)&saddr, addrlen);
+ if (retval != -1) {
+ retval = 0;
+ goto close_and_exit;
+ }
+
+ if (errno != ECONNREFUSED) {
+ dbg("error sending message");
+ goto close_and_exit;
+ }
+
+ if (!started_daemon) {
+ dbg("connect failed, try starting daemon...");
+ retval = start_daemon();
+ if (retval) {
+ dbg("error starting daemon");
+ goto exit;
+ }
+
+ dbg("daemon started");
+ started_daemon = 1;
+ } else {
+ dbg("retry to connect %d", UDEVSEND_CONNECT_RETRY - loop);
+ tspec.tv_sec = 0;
+ tspec.tv_nsec = 100000000; /* 100 millisec */
+ nanosleep(&tspec, NULL);
+ }