Update ChangeLog

This makes ps show which service the supervisor is monitoring.

ChangeLog

@@ -1,3 +1,157 @@
+commit b18be3f970eba04589977438faaa726b5c3a6cd2
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: use RC_SVCNAME as the first argument to the daemon
+    
+    This makes ps show which service the supervisor is monitoring.
+
+commit 027438f7759dbbc19ac1bedeff3f502c891e4d4e
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: fix logging for reexec and the child command line
+
+commit 93e159ae8541b82fd5e1843f60dce135e2eb5517
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    log as supervise-daemon not the service
+
+commit bcfcf50562a081088248f693dfab62d3eab04efa
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    version 0.34.4
+
+commit d0097cc10f8701de1b6a5665c54abf909e897233
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    Update ChangeLog
+
+commit eecf868e3c4a763b08cd4b3803f4839e8e710413
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: clarify a log message
+
+commit a5cd486a7fbb5acf8e8f3085500fd86c23dd8641
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    Update ChangeLog
+
+commit 6e6b4ac5fa935eb8052d293f2b8378e0395572e1
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: log the command line we run to spawn the child process
+
+commit 558ff4d5fb90b751ebc2852ea907873af2c236fa
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: log with the service name instead of "supervise-daemon"
+
+commit 490f855aef581a720c6c0be0d8407fe6d279f9f5
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    implement "unsupervised" status
+    
+    The unsupervised status is to be used when a supervisor of a supervised
+    service dies but leaves the service daemon itself running.
+
+commit d1491e201d3ad364e25a55b29ff8035775a6acac
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: remove child_pid from saved options during shutdown
+    
+    This allows us to detect when the supervisor dies unexpectedly because
+    in that case child_pid will still exist.
+
+commit 3231af937590b1c00af1a459009472a371aeb04a
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    rc_service_value_set: remove the option if NULL is the value
+    
+    This allows the equivalent of "unsetting" a value for a service.
+
+commit a5758e7aeffbeb9766ba3055a3fc347f0ccd3d35
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon.sh: fix status function with no namespaces
+
+commit 61a9393ce12fda412bdca4002ac71e7df82384df
+Author: Patrick McLean <chutzpah@gentoo.org>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    cgroups_cleanup: clean up shutdown signaling
+    
+    - do not sleep for the full 90 seconds if processes are dead
+    - re-arrange the order of signals we attempt to send to the processes
+
+commit 161d22cb074ecef7003e19682d72a8ee61c14490
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    version 0.34.3
+
+commit 3a96ca1c966c3cc44a2e0e51b383ab47d078bcc1
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    Update ChangeLog
+
+commit 934530914bd507476b428d3f6572bbb1c5bbfd16
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    add "unsupervised" status and return code 64 to supervise-daemon status function
+    
+    This is to be used if the service is being supervised and the
+    supervisor is somehow killed.
+    
+    Currently, this is very linux specific, but I will expand to other
+    platforms, patches are welcome.
+
+commit b717625cd27950c3f00b5345bc1cee9700e79498
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    version 0.34.2
+
+commit b47539613431521e5e99bc388e6a9d8eb0e48801
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    Update ChangeLog
+
+commit e7b1d898ca7896d6443ba1e5167eb6bcf3f92929
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    supervise-daemon: fix build issue for >=glibc-2.26
+    
+    X-Gentoo-Bug: 635334
+    X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=635334
+
+commit 5cd09a6f44aa7d16ab7de1453e37d01448426031
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    version 0.34.1
+
+commit f3c70bf5b5aa18e8dc94d4949f05568e0741c5cb
+Author: William Hubbs <w.d.hubbs@gmail.com>
+Commit: William Hubbs <w.d.hubbs@gmail.com>
+
+    Update ChangeLog
+
 commit f5acc66db7d1a0bfad6a40eefc0240b80f52df94
 Author: William Hubbs <w.d.hubbs@gmail.com>
 Commit: William Hubbs <w.d.hubbs@gmail.com>
@@ -1448,27 +1602,3 @@ Author: William Hubbs <w.d.hubbs@gmail.com>
 Commit: William Hubbs <w.d.hubbs@gmail.com>
 
     src/rc/rc: do not try to start services if fork fails
-
-commit 003657c973ea338a19f2b7294190af9d76cf5cea
-Author: Robin H. Johnson <robbat2@gentoo.org>
-Commit: William Hubbs <w.d.hubbs@gmail.com>
-
-    init.d/loopback: drop scope on loopback
-    
-    Busybox does not support the 'scope' argument on 'ip address add' or 'ip
-    route add', this is documented in BUSYBOX.md, but is no longer actually
-    needed, as the kernel does get it right without manual specification,
-    and the ifconfig variant already relies on the kernel to get it right.
-    This is part of #103.
-    
-    X-Gentoo-Bug: 487208
-    X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=487208
-
-commit 4fd144c0a6526963c70f18cb34a65354c2f0a48c
-Author: William Hubbs <w.d.hubbs@gmail.com>
-Commit: William Hubbs <w.d.hubbs@gmail.com>
-
-    src/rc/rc-misc.c: report error if call to flock() fails
-    
-    X-Gentoo-Bug: 597390
-    X-Gentoo-Bug-URL: https://bugs.gentoo.org/show_bug.cgi?id=597390

Makefile.inc

@@ -1,3 +1,3 @@
 NAME=		openrc
-VERSION=	0.34
+VERSION=	0.34.4
 PKG=		${NAME}-${VERSION}

sh/rc-cgroup.sh.in

@@ -203,15 +203,21 @@ cgroup_cleanup()
 {
 	cgroup_running || return 0
 	ebegin "starting cgroups cleanup"
-	local pids
+	local pids loops=0
 	pids="$(cgroup_get_pids)"
 	if [ -n "${pids}" ]; then
-		kill -s "${stopsig:-TERM}" ${pids} 2> /dev/null
 		kill -s CONT ${pids} 2> /dev/null
+		kill -s "${stopsig:-TERM}" ${pids} 2> /dev/null
 		yesno "${rc_send_sighup:-no}" &&
 			kill -s HUP ${pids} 2> /dev/null
-		sleep "${rc_timeout_stopsec:-90}"
-		yesno "${rc_send_sigkill:-yes}" &&
+		kill -s "${stopsig:-TERM}" ${pids} 2> /dev/null
+		while [ -n "$(cgroup_get_pids)" ] &&
+			[ "${loops}" -lt "${rc_timeout_stopsec:-90}" ]; do
+			loops=$((loops+1))
+			sleep 1
+		done
+		pids="$(cgroup_get_pids)"
+		[ -n "${pids}" ] && yesno "${rc_send_sigkill:-yes}" &&
 			kill -s KILL ${pids} 2> /dev/null
 	fi
 	cgroup2_remove

sh/supervise-daemon.sh

@@ -22,7 +22,7 @@ supervise_start()
 	# The eval call is necessary for cases like:
 	# command_args="this \"is a\" test"
 	# to work properly.
-	eval supervise-daemon --start \
+	eval supervise-daemon "${RC_SVCNAME}" --start \
 		${retry:+--retry} $retry \
 		${chroot:+--chroot} $chroot \
 		${pidfile:+--pidfile} $pidfile \
@@ -49,14 +49,48 @@ supervise_stop()
 	pidfile="${startpidfile:-$pidfile}"
 	[ -n "$pidfile" ] || return 0
 	ebegin "Stopping ${name:-$RC_SVCNAME}"
-	supervise-daemon --stop \
+	supervise-daemon "${RC_SVCNAME}" --stop \
 		${pidfile:+--pidfile} $chroot$pidfile \
 		${stopsig:+--signal} $stopsig
 
 	eend $? "Failed to stop ${name:-$RC_SVCNAME}"
 }
 
+_check_supervised()
+{
+	local child_pid start_time
+	child_pid="$(service_get_value "child_pid")"
+	start_time="$(service_get_value "start_time")"
+	if [ -n "${child_pid}" ] && [ -n "${start_time}" ]; then
+		return 1
+	fi
+	return 0
+}
+
 supervise_status()
 {
-	_status
+	if service_stopping; then
+		ewarn "status: stopping"
+		return 4
+	elif service_starting; then
+		ewarn "status: starting"
+		return 8
+	elif service_inactive; then
+		ewarn "status: inactive"
+		return 16
+	elif service_started; then
+		if service_crashed; then
+			if ! _check_supervised; then
+				eerror "status: unsupervised"
+				return 64
+			fi
+			eerror "status: crashed"
+			return 32
+		fi
+		einfo "status: started"
+		return 0
+	else
+		einfo "status: stopped"
+		return 3
+	fi
 }

src/librc/librc.c

@@ -894,11 +894,14 @@ rc_service_value_set(const char *service, const char *option,
 		return false;
 
 	snprintf(p, sizeof(file) - (p - file), "/%s", option);
+	if (value) {
 		if (!(fp = fopen(file, "w")))
 			return false;
-	if (value)
 		fprintf(fp, "%s", value);
 		fclose(fp);
+	} else {
+		unlink(file);
+	}
 		return true;
 }
 librc_hidden_def(rc_service_value_set)

src/rc/rc-status.c

@@ -128,6 +128,8 @@ print_service(const char *service)
 {
 	char status[60];
 	char uptime [40];
+	char *child_pid = NULL;
+	char *start_time = NULL;
 	int cols =  printf(" %s", service);
 	const char *c = ecolor(ECOLOR_GOOD);
 	RC_SERVICE state = rc_service_state(service);
@@ -147,7 +149,14 @@ print_service(const char *service)
 		    rc_service_daemons_crashed(service) &&
 		    errno != EACCES)
 		{
+			child_pid = rc_service_value_get(service, "child_pid");
+			start_time = rc_service_value_get(service, "start_time");
+			if (start_time && child_pid)
+				snprintf(status, sizeof(status), " unsupervised ");
+			else
 				snprintf(status, sizeof(status), " crashed ");
+			free(child_pid);
+			free(start_time);
 		} else {
 			get_uptime(service, uptime, 40);
 			snprintf(status, sizeof(status), " started %s", uptime);

src/rc/supervise-daemon.c

@@ -161,7 +161,7 @@ static void cleanup(void)
 
 static void re_exec(void)
 {
-	syslog(LOG_WARNING, "Re-executing supervise-daemon");
+	syslog(LOG_WARNING, "Re-executing for %s", svcname);
 	execlp("supervise-daemon", "supervise-daemon", "--reexec", (char *) NULL);
 	syslog(LOG_ERR, "Unable to execute supervise-daemon: %s",
 			strerror(errno));
@@ -402,7 +402,7 @@ static void child_process(char *exec, char **argv)
 		strcat(cmdline, " ");
 		c++;
 	}
-	syslog(LOG_INFO, "Running command line: %s", cmdline);
+	syslog(LOG_INFO, "Child command line: %s", cmdline);
 	execvp(exec, argv);
 
 #ifdef HAVE_PAM
@@ -420,7 +420,6 @@ static void supervisor(char *exec, char **argv)
 	time_t respawn_now= 0;
 	time_t first_spawn= 0;
 
-	openlog(applet, LOG_PID, LOG_DAEMON);
 #ifndef RC_DEBUG
 	signal_setup_restart(SIGHUP, handle_signal);
 	signal_setup_restart(SIGINT, handle_signal);
@@ -447,7 +446,9 @@ static void supervisor(char *exec, char **argv)
 #endif
 	signal_setup_restart(SIGIO, handle_signal);
 	signal_setup_restart(SIGPWR, handle_signal);
+#ifdef SIGUNUSED
 	signal_setup_restart(SIGUNUSED, handle_signal);
+#endif
 #ifdef SIGRTMIN
 	for (i = SIGRTMIN; i <= SIGRTMAX; i++)
 		signal_setup_restart(i, handle_signal);
@@ -521,6 +522,7 @@ static void supervisor(char *exec, char **argv)
 		rc_service_daemon_set(svcname, exec, (const char *const *)argv,
 				pidfile, false);
 		rc_service_mark(svcname, RC_SERVICE_STOPPED);
+		rc_service_value_set(svcname, "child_pid", NULL);
 	}
 	exit(EXIT_SUCCESS);
 }
@@ -554,10 +556,17 @@ int main(int argc, char **argv)
 	int child_argc = 0;
 	char **child_argv = NULL;
 	char *str = NULL;
+	char cmdline[PATH_MAX];
 
 	applet = basename_c(argv[0]);
 	atexit(cleanup);
 	svcname = getenv("RC_SVCNAME");
+	if (!svcname)
+		eerrorx("%s: The RC_SVCNAME environment variable is not set", applet);
+	openlog(applet, LOG_PID, LOG_DAEMON);
+
+	if (argc >= 1 && svcname && strcmp(argv[1], svcname))
+		eerrorx("%s: the first argument must be %s", applet, svcname);
 
 	if ((tmp = getenv("SSD_NICELEVEL")))
 		if (sscanf(tmp, "%d", &nicelevel) != 1)
@@ -579,6 +588,17 @@ int main(int argc, char **argv)
 		}
 	}
 
+	*cmdline = '\0';
+	c = argv;
+	while (c && *c) {
+		strcat(cmdline, *c);
+		strcat(cmdline, " ");
+		c++;
+	}
+	if (svcname) {
+		argc--;
+		argv++;
+	}
 	while ((opt = getopt_long(argc, argv, getoptstring, longopts,
 		    (int *) 0)) != -1)
 		switch (opt) {
@@ -717,7 +737,6 @@ int main(int argc, char **argv)
 
 	if (!pidfile && !reexec)
 		eerrorx("%s: --pidfile must be specified", applet);
-
 	endpwent();
 	argc -= optind;
 	argv += optind;
@@ -815,6 +834,7 @@ int main(int argc, char **argv)
 			parse_schedule(applet, NULL, sig);
 
 		einfov("Detaching to start `%s'", exec);
+		syslog(LOG_INFO, "Supervisor command line: %s", cmdline);
 
 		/* Remove existing pidfile */
 		if (pidfile)