From 0380d98d7dd8d0880764a2d0878df56d4e858b45 Mon Sep 17 00:00:00 2001 From: Roy Marples Date: Mon, 30 Apr 2007 13:18:42 +0000 Subject: restart/schedule stopped services when the trigger service goes inactive on a restart --- src/runscript.c | 114 +++++++++++++++++++++++++++++++------------------------- 1 file changed, 63 insertions(+), 51 deletions(-) diff --git a/src/runscript.c b/src/runscript.c index e6cc2b56..65f31595 100644 --- a/src/runscript.c +++ b/src/runscript.c @@ -36,6 +36,7 @@ #define PREFIX_LOCK RC_SVCDIR "/prefix.lock" static char *applet = NULL; +static char *service = NULL; static char *exclusive = NULL; static char *mtime_test = NULL; static rc_depinfo_t *deptree = NULL; @@ -193,15 +194,43 @@ static bool in_control () return (true); } -static void uncoldplug (char *service) +static void uncoldplug () { - char *cold = rc_strcatpaths (RC_SVCDIR "coldplugged", basename (service), - (char *) NULL); + char *cold = rc_strcatpaths (RC_SVCDIR "coldplugged", applet, (char *) NULL); if (rc_exists (cold) && unlink (cold) != 0) eerror ("%s: unlink `%s': %s", applet, cold, strerror (errno)); free (cold); } +static void start_services (char **list) { + bool inactive; + char *svc; + int i; + + if (! list) + return; + + inactive = rc_service_state (service, rc_service_inactive); + if (! inactive) + inactive = rc_service_state (service, rc_service_wasinactive); + + if (inactive || + rc_service_state (service, rc_service_starting) || + rc_service_state (service, rc_service_started)) + { + STRLIST_FOREACH (list, svc, i) { + if (rc_service_state (svc, rc_service_stopped)) { + if (inactive) { + rc_schedule_start_service (service, svc); + ewarn ("WARNING: %s is scheduled to started when %s has started", + svc, applet); + } else + rc_start_service (svc); + } + } + } +} + static void cleanup (void) { if (prefix_locked) @@ -214,12 +243,16 @@ static void cleanup (void) rc_plugin_run (hook_out, applet); rc_plugin_unload (); + if (restart_services ) { + start_services (restart_services); + rc_strlist_free (restart_services); + } + rc_free_deptree (deptree); rc_strlist_free (services); rc_strlist_free (types); rc_strlist_free (svclist); rc_strlist_free (providelist); - rc_strlist_free (restart_services); rc_strlist_free (need_services); rc_strlist_free (tmplist); free (ibsave); @@ -295,7 +328,7 @@ static int write_prefix (int fd, const char *buffer, size_t bytes, bool *prefixe return (ret); } -static bool svc_exec (const char *service, const char *arg1, const char *arg2) +static bool svc_exec (const char *arg1, const char *arg2) { bool execok; int stdout_pipes[2]; @@ -439,7 +472,7 @@ static bool svc_exec (const char *service, const char *arg1, const char *arg2) return (execok); } -static rc_service_state_t svc_status (const char *service) +static rc_service_state_t svc_status () { char status[10]; int (*e) (const char *fmt, ...) = &einfo; @@ -472,7 +505,7 @@ static rc_service_state_t svc_status (const char *service) return (retval); } -static void make_exclusive (const char *service) +static void make_exclusive () { char *path; int i; @@ -518,7 +551,7 @@ static void unlink_mtime_test () static void get_started_services () { - char *service; + char *svc; int i; rc_strlist_free (tmplist); @@ -527,14 +560,14 @@ static void get_started_services () rc_strlist_free (restart_services); restart_services = rc_services_in_state (rc_service_started); - STRLIST_FOREACH (tmplist, service, i) - restart_services = rc_strlist_addsort (restart_services, service); + STRLIST_FOREACH (tmplist, svc, i) + restart_services = rc_strlist_addsort (restart_services, svc); rc_strlist_free (tmplist); tmplist = NULL; } -static void svc_start (const char *service, bool deps) +static void svc_start (bool deps) { bool started; bool background = false; @@ -695,7 +728,7 @@ static void svc_start (const char *service, bool deps) if (ibsave) setenv ("IN_BACKGROUND", ibsave, 1); rc_plugin_run (rc_hook_service_start_now, applet); - started = svc_exec (service, "start", NULL); + started = svc_exec ("start", NULL); if (ibsave) unsetenv ("IN_BACKGROUND"); @@ -751,7 +784,7 @@ static void svc_start (const char *service, bool deps) rc_plugin_run (rc_hook_service_start_out, applet); } -static void svc_stop (const char *service, bool deps) +static void svc_stop (bool deps) { bool stopped; @@ -857,7 +890,7 @@ static void svc_stop (const char *service, bool deps) if (ibsave) setenv ("IN_BACKGROUND", ibsave, 1); rc_plugin_run (rc_hook_service_stop_now, applet); - stopped = svc_exec (service, "stop", NULL); + stopped = svc_exec ("stop", NULL); if (ibsave) unsetenv ("IN_BACKGROUND"); @@ -886,12 +919,8 @@ static void svc_stop (const char *service, bool deps) rc_plugin_run (rc_hook_service_stop_out, applet); } -static void svc_restart (const char *service, bool deps) +static void svc_restart (bool deps) { - char *svc; - int i; - bool inactive = false; - /* This is hairly and a better way needs to be found I think! The issue is this - openvpn need net and dns. net can restart dns via resolvconf, so you could have openvpn trying to restart dnsmasq @@ -903,41 +932,24 @@ static void svc_restart (const char *service, bool deps) if (! deps) { if (rc_service_state (service, rc_service_started) || rc_service_state (service, rc_service_inactive)) - svc_exec (service, "stop", "start"); + svc_exec ("stop", "start"); else - svc_exec (service, "start", NULL); + svc_exec ("start", NULL); return; } if (! rc_service_state (service, rc_service_stopped)) { get_started_services (); - svc_stop (service, deps); + svc_stop (deps); /* Flush our buffered output if any */ eflush (); } - svc_start (service, deps); - - inactive = rc_service_state (service, rc_service_inactive); - if (! inactive) - inactive = rc_service_state (service, rc_service_wasinactive); - - if (inactive || - rc_service_state (service, rc_service_starting) || - rc_service_state (service, rc_service_started)) - { - STRLIST_FOREACH (restart_services, svc, i) { - if (rc_service_state (svc, rc_service_stopped)) { - if (inactive) { - rc_schedule_start_service (service, svc); - ewarn ("WARNING: %s is scheduled to started when %s has started", - svc, applet); - } else - rc_start_service (svc); - } - } - } + svc_start (deps); + start_services (restart_services); + rc_strlist_free (restart_services); + restart_services = NULL; } #define getoptstring "dCDNqvh" @@ -955,7 +967,6 @@ static struct option longopts[] = { int main (int argc, char **argv) { - char *service = argv[1]; int i; bool deps = true; bool doneone = false; @@ -963,6 +974,7 @@ int main (int argc, char **argv) int retval; char c; + service = argv[1]; /* Show help if insufficient args */ if (argc < 3) { execl (RCSCRIPT_HELP, RCSCRIPT_HELP, service, (char *) NULL); @@ -1137,12 +1149,12 @@ int main (int argc, char **argv) strcmp (optarg, "condrestart") == 0) { if (rc_service_state (service, rc_service_started)) - svc_restart (service, deps); + svc_restart (deps); } else if (strcmp (optarg, "restart") == 0) - svc_restart (service, deps); + svc_restart (deps); else if (strcmp (optarg, "start") == 0) - svc_start (service, deps); + svc_start (deps); else if (strcmp (optarg, "status") == 0) { rc_service_state_t r = svc_status (service); retval = (int) r; @@ -1150,12 +1162,12 @@ int main (int argc, char **argv) if (in_background) get_started_services (); - svc_stop (service, deps); + svc_stop (deps); if (! in_background && ! rc_runlevel_stopping () && rc_service_state (service, rc_service_stopped)) - uncoldplug (applet); + uncoldplug (); if (in_background && rc_service_state (service, rc_service_inactive)) @@ -1169,13 +1181,13 @@ int main (int argc, char **argv) } else if (strcmp (optarg, "zap") == 0) { einfo ("Manually resetting %s to stopped state", applet); rc_mark_service (applet, rc_service_stopped); - uncoldplug (applet); + uncoldplug (); } else if (strcmp (optarg, "help") == 0) { execl (RCSCRIPT_HELP, RCSCRIPT_HELP, service, "help", (char *) NULL); eerrorx ("%s: failed to exec `" RCSCRIPT_HELP "': %s", applet, strerror (errno)); }else - svc_exec (service, optarg, NULL); + svc_exec (optarg, NULL); /* Flush our buffered output if any */ eflush (); -- cgit v1.2.3