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fb33a393e2
systemd-stable/service.c
Lennart Poettering d46de8a1a2 rework config file load logic
2010-01-28 02:44:47 +01:00

1056 lines
31 KiB
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/*-*- Mode: C; c-basic-offset: 8 -*-*/
#include <errno.h>
#include <signal.h>
#include "unit.h"
#include "service.h"
#include "load-fragment.h"
#include "load-dropin.h"
#include "log.h"
static const UnitActiveState state_translation_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = UNIT_INACTIVE,
[SERVICE_START_PRE] = UNIT_ACTIVATING,
[SERVICE_START] = UNIT_ACTIVATING,
[SERVICE_START_POST] = UNIT_ACTIVATING,
[SERVICE_RUNNING] = UNIT_ACTIVE,
[SERVICE_RELOAD] = UNIT_ACTIVE_RELOADING,
[SERVICE_STOP] = UNIT_DEACTIVATING,
[SERVICE_STOP_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_STOP_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_STOP_POST] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGTERM] = UNIT_DEACTIVATING,
[SERVICE_FINAL_SIGKILL] = UNIT_DEACTIVATING,
[SERVICE_MAINTAINANCE] = UNIT_INACTIVE,
[SERVICE_AUTO_RESTART] = UNIT_ACTIVATING,
};
static const char* const state_string_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = "dead",
[SERVICE_START_PRE] = "start-pre",
[SERVICE_START] = "start",
[SERVICE_START_POST] = "start-post",
[SERVICE_RUNNING] = "running",
[SERVICE_RELOAD] = "reload",
[SERVICE_STOP] = "stop",
[SERVICE_STOP_SIGTERM] = "stop-sigterm",
[SERVICE_STOP_SIGKILL] = "stop-sigkill",
[SERVICE_STOP_POST] = "stop-post",
[SERVICE_FINAL_SIGTERM] = "final-sigterm",
[SERVICE_FINAL_SIGKILL] = "final-sigkill",
[SERVICE_MAINTAINANCE] = "maintainance",
[SERVICE_AUTO_RESTART] = "auto-restart",
};
static void service_done(Unit *u) {
Service *s = SERVICE(u);
assert(s);
free(s->pid_file);
s->pid_file = NULL;
exec_context_done(&s->exec_context);
exec_command_free_array(s->exec_command, _SERVICE_EXEC_MAX);
s->control_command = NULL;
/* This will leak a process, but at least no memory or any of
* our resources */
if (s->main_pid > 0) {
unit_unwatch_pid(u, s->main_pid);
s->main_pid = 0;
}
if (s->control_pid > 0) {
unit_unwatch_pid(u, s->control_pid);
s->control_pid = 0;
}
unit_unwatch_timer(u, &s->timer_watch);
}
static int service_load_sysv(Service *s) {
assert(s);
/* Load service data from SysV init scripts, preferably with
* LSB headers ... */
return -ENOENT;
}
static int service_init(Unit *u) {
int r;
Service *s = SERVICE(u);
assert(s);
/* First, reset everything to the defaults, in case this is a
* reload */
s->type = 0;
s->restart = 0;
s->timeout_usec = DEFAULT_TIMEOUT_USEC;
s->restart_usec = DEFAULT_RESTART_USEC;
exec_context_init(&s->exec_context);
s->timer_watch.type = WATCH_INVALID;
s->state = SERVICE_DEAD;
/* Load a .service file */
if ((r = unit_load_fragment(u)) < 0) {
service_done(u);
return r;
}
/* Load a classic init script as a fallback, if we couldn*t find anything */
if (r == 0)
if ((r = service_load_sysv(s)) <= 0) {
service_done(u);
return r < 0 ? r : -ENOENT;
}
/* Load dropin directory data */
if ((r = unit_load_dropin(u)) < 0) {
service_done(u);
return r;
}
return 0;
}
static void service_dump(Unit *u, FILE *f, const char *prefix) {
static const char* const command_table[_SERVICE_EXEC_MAX] = {
[SERVICE_EXEC_START_PRE] = "ExecStartPre",
[SERVICE_EXEC_START] = "ExecStart",
[SERVICE_EXEC_START_POST] = "ExecStartPost",
[SERVICE_EXEC_RELOAD] = "ExecReload",
[SERVICE_EXEC_STOP] = "ExecStop",
[SERVICE_EXEC_STOP_POST] = "ExecStopPost",
};
ServiceExecCommand c;
Service *s = SERVICE(u);
char *prefix2;
assert(s);
prefix2 = strappend(prefix, "\t");
if (!prefix2)
prefix2 = "";
fprintf(f,
"%sService State: %s\n",
prefix, state_string_table[s->state]);
if (s->pid_file)
fprintf(f,
"%sPIDFile: %s\n",
prefix, s->pid_file);
exec_context_dump(&s->exec_context, f, prefix);
for (c = 0; c < _SERVICE_EXEC_MAX; c++) {
if (!s->exec_command[c])
continue;
fprintf(f, "%s→ %s:\n",
prefix, command_table[c]);
exec_command_dump_list(s->exec_command[c], f, prefix2);
}
free(prefix2);
}
static int service_load_pid_file(Service *s) {
char *k;
unsigned long p;
int r;
assert(s);
if (s->main_pid_known)
return 0;
if (!s->pid_file)
return -ENOENT;
if ((r = read_one_line_file(s->pid_file, &k)) < 0)
return r;
if ((r = safe_atolu(k, &p)) < 0) {
free(k);
return r;
}
if ((unsigned long) (pid_t) p != p)
return -ERANGE;
s->main_pid = p;
s->main_pid_known = true;
return 0;
}
static int service_get_sockets(Service *s, Set **_set) {
Set *set;
Iterator i;
char *t;
int r;
assert(s);
assert(_set);
/* Collects all Socket objects that belong to this
* service. Note that a service might have multiple sockets
* via multiple names. */
if (!(set = set_new(NULL, NULL)))
return -ENOMEM;
SET_FOREACH(t, UNIT(s)->meta.names, i) {
char *k;
Unit *p;
/* Look for all socket objects that go by any of our
* units and collect their fds */
if (!(k = unit_name_change_suffix(t, ".socket"))) {
r = -ENOMEM;
goto fail;
}
p = manager_get_unit(UNIT(s)->meta.manager, k);
free(k);
if (!p) continue;
if ((r = set_put(set, p)) < 0)
goto fail;
}
*_set = set;
return 0;
fail:
set_free(set);
return r;
}
static int service_notify_sockets(Service *s) {
Iterator i;
Set *set;
Socket *socket;
int r;
assert(s);
/* Notifies all our sockets when we die */
if ((r = service_get_sockets(s, &set)) < 0)
return r;
SET_FOREACH(socket, set, i)
socket_notify_service_dead(socket);
set_free(set);
return 0;
}
static void service_set_state(Service *s, ServiceState state) {
ServiceState old_state;
assert(s);
old_state = s->state;
s->state = state;
if (state != SERVICE_START_PRE &&
state != SERVICE_START &&
state != SERVICE_START_POST &&
state != SERVICE_RELOAD &&
state != SERVICE_STOP &&
state != SERVICE_STOP_SIGTERM &&
state != SERVICE_STOP_SIGKILL &&
state != SERVICE_STOP_POST &&
state != SERVICE_FINAL_SIGTERM &&
state != SERVICE_FINAL_SIGKILL &&
state != SERVICE_AUTO_RESTART)
unit_unwatch_timer(UNIT(s), &s->timer_watch);
if (state != SERVICE_START_POST &&
state != SERVICE_RUNNING &&
state != SERVICE_RELOAD &&
state != SERVICE_STOP &&
state != SERVICE_STOP_SIGTERM &&
state != SERVICE_STOP_SIGKILL)
if (s->main_pid > 0) {
unit_unwatch_pid(UNIT(s), s->main_pid);
s->main_pid = 0;
}
if (state != SERVICE_START_PRE &&
state != SERVICE_START &&
state != SERVICE_START_POST &&
state != SERVICE_RELOAD &&
state != SERVICE_STOP &&
state != SERVICE_STOP_SIGTERM &&
state != SERVICE_STOP_SIGKILL &&
state != SERVICE_STOP_POST &&
state != SERVICE_FINAL_SIGTERM &&
state != SERVICE_FINAL_SIGKILL)
if (s->control_pid > 0) {
unit_unwatch_pid(UNIT(s), s->control_pid);
s->control_pid = 0;
}
if (state != SERVICE_START_PRE &&
state != SERVICE_START &&
state != SERVICE_START_POST &&
state != SERVICE_RELOAD &&
state != SERVICE_STOP &&
state != SERVICE_STOP_POST)
s->control_command = NULL;
if (state == SERVICE_DEAD ||
state == SERVICE_STOP ||
state == SERVICE_STOP_SIGTERM ||
state == SERVICE_STOP_SIGKILL ||
state == SERVICE_STOP_POST ||
state == SERVICE_FINAL_SIGTERM ||
state == SERVICE_FINAL_SIGKILL ||
state == SERVICE_MAINTAINANCE ||
state == SERVICE_AUTO_RESTART)
service_notify_sockets(s);
log_debug("%s changed %s → %s", unit_id(UNIT(s)), state_string_table[old_state], state_string_table[state]);
unit_notify(UNIT(s), state_translation_table[old_state], state_translation_table[state]);
}
static int service_collect_fds(Service *s, int **fds, unsigned *n_fds) {
Iterator i;
int r;
int *rfds = NULL;
unsigned rn_fds = 0;
Set *set;
Socket *socket;
assert(s);
assert(fds);
assert(n_fds);
if ((r = service_get_sockets(s, &set)) < 0)
return r;
SET_FOREACH(socket, set, i) {
int *cfds;
unsigned cn_fds;
if ((r = socket_collect_fds(socket, &cfds, &cn_fds)) < 0)
goto fail;
if (!cfds)
continue;
if (!rfds) {
rfds = cfds;
rn_fds = cn_fds;
} else {
int *t;
if (!(t = new(int, rn_fds+cn_fds))) {
free(cfds);
r = -ENOMEM;
goto fail;
}
memcpy(t, rfds, rn_fds);
memcpy(t+rn_fds, cfds, cn_fds);
free(rfds);
free(cfds);
rfds = t;
rn_fds = rn_fds+cn_fds;
}
}
*fds = rfds;
*n_fds = rn_fds;
set_free(set);
return 0;
fail:
set_free(set);
free(rfds);
return r;
}
static int service_spawn(Service *s, ExecCommand *c, bool timeout, bool pass_fds, pid_t *_pid) {
pid_t pid;
int r;
int *fds = NULL;
unsigned n_fds = 0;
assert(s);
assert(c);
assert(_pid);
if (pass_fds)
if ((r = service_collect_fds(s, &fds, &n_fds)) < 0)
goto fail;
if (timeout) {
if ((r = unit_watch_timer(UNIT(s), s->timeout_usec, &s->timer_watch)) < 0)
goto fail;
} else
unit_unwatch_timer(UNIT(s), &s->timer_watch);
if ((r = exec_spawn(c, &s->exec_context, fds, n_fds, &pid)) < 0)
goto fail;
if ((r = unit_watch_pid(UNIT(s), pid)) < 0)
/* FIXME: we need to do something here */
goto fail;
free(fds);
*_pid = pid;
return 0;
fail:
free(fds);
if (timeout)
unit_unwatch_timer(UNIT(s), &s->timer_watch);
return r;
}
static void service_enter_dead(Service *s, bool success, bool allow_restart) {
int r;
assert(s);
if (!success)
s->failure = true;
if (allow_restart &&
(s->restart == SERVICE_RESTART_ALWAYS ||
(s->restart == SERVICE_RESTART_ON_SUCCESS && !s->failure))) {
if ((r = unit_watch_timer(UNIT(s), s->restart_usec, &s->timer_watch)) < 0)
goto fail;
service_set_state(s, SERVICE_AUTO_RESTART);
} else
service_set_state(s, s->failure ? SERVICE_MAINTAINANCE : SERVICE_DEAD);
return;
fail:
log_warning("%s failed to run install restart timer: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_dead(s, false, false);
}
static void service_enter_signal(Service *s, ServiceState state, bool success);
static void service_enter_stop_post(Service *s, bool success) {
int r;
assert(s);
if (!success)
s->failure = true;
if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP_POST]))
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
service_set_state(s, SERVICE_STOP_POST);
if (!s->control_command)
service_enter_dead(s, true, true);
return;
fail:
log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
}
static void service_enter_signal(Service *s, ServiceState state, bool success) {
int r;
bool sent = false;
assert(s);
if (!success)
s->failure = true;
if (s->main_pid > 0 || s->control_pid > 0) {
int sig;
sig = (state == SERVICE_STOP_SIGTERM || state == SERVICE_FINAL_SIGTERM) ? SIGTERM : SIGKILL;
r = 0;
if (s->main_pid > 0) {
if (kill(s->main_pid, sig) < 0 && errno != ESRCH)
r = -errno;
else
sent = true;
}
if (s->control_pid > 0) {
if (kill(s->control_pid, sig) < 0 && errno != ESRCH)
r = -errno;
else
sent = true;
}
if (r < 0)
goto fail;
}
service_set_state(s, state);
if (s->main_pid <= 0 && s->control_pid <= 0)
service_enter_dead(s, true, true);
return;
fail:
log_warning("%s failed to kill processes: %s", unit_id(UNIT(s)), strerror(-r));
if (sent) {
s->failure = true;
service_set_state(s, state);
} else if (state == SERVICE_STOP_SIGTERM || state == SERVICE_STOP_SIGKILL)
service_enter_stop_post(s, false);
else
service_enter_dead(s, false, true);
}
static void service_enter_stop(Service *s, bool success) {
int r;
assert(s);
if (!success)
s->failure = true;
if ((s->control_command = s->exec_command[SERVICE_EXEC_STOP]))
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
service_set_state(s, SERVICE_STOP);
if (!s->control_command)
service_enter_signal(s, SERVICE_STOP_SIGTERM, true);
return;
fail:
log_warning("%s failed to run stop executable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
}
static void service_enter_start_post(Service *s) {
int r;
assert(s);
if ((s->control_command = s->exec_command[SERVICE_EXEC_START_POST]))
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
service_set_state(s, SERVICE_START_POST);
if (!s->control_command)
service_set_state(s, SERVICE_RUNNING);
return;
fail:
log_warning("%s failed to run start-post executable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_stop(s, false);
}
static void service_enter_start(Service *s) {
pid_t pid;
int r;
assert(s);
assert(s->exec_command[SERVICE_EXEC_START]);
assert(!s->exec_command[SERVICE_EXEC_START]->command_next);
if ((r = service_spawn(s, s->exec_command[SERVICE_EXEC_START], s->type == SERVICE_FORKING, true, &pid)) < 0)
goto fail;
service_set_state(s, SERVICE_START);
if (s->type == SERVICE_SIMPLE) {
/* For simple services we immediately start
* the START_POST binaries. */
s->main_pid = pid;
s->main_pid_known = true;
service_enter_start_post(s);
} else if (s->type == SERVICE_FORKING) {
/* For forking services we wait until the start
* process exited. */
s->control_pid = pid;
s->control_command = s->exec_command[SERVICE_EXEC_START];
} else
assert_not_reached("Unknown service type");
return;
fail:
log_warning("%s failed to run start exectuable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_stop(s, false);
}
static void service_enter_start_pre(Service *s) {
int r;
assert(s);
if ((s->control_command = s->exec_command[SERVICE_EXEC_START_PRE]))
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
service_set_state(s, SERVICE_START_PRE);
if (!s->control_command)
service_enter_start(s);
return;
fail:
log_warning("%s failed to run start-pre executable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_dead(s, false, true);
}
static void service_enter_restart(Service *s) {
int r;
assert(s);
if ((r = manager_add_job(UNIT(s)->meta.manager, JOB_START, UNIT(s), JOB_FAIL, false, NULL)) < 0)
goto fail;
log_debug("%s scheduled restart job.", unit_id(UNIT(s)));
service_enter_dead(s, true, false);
return;
fail:
log_warning("%s failed to schedule restart job: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_dead(s, false, false);
}
static void service_enter_reload(Service *s) {
int r;
assert(s);
if ((s->control_command = s->exec_command[SERVICE_EXEC_RELOAD]))
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
service_set_state(s, SERVICE_RELOAD);
if (!s->control_command)
service_set_state(s, SERVICE_RUNNING);
return;
fail:
log_warning("%s failed to run reload executable: %s", unit_id(UNIT(s)), strerror(-r));
service_enter_stop(s, false);
}
static void service_run_next(Service *s, bool success) {
int r;
assert(s);
assert(s->control_command);
assert(s->control_command->command_next);
if (!success)
s->failure = true;
s->control_command = s->control_command->command_next;
if ((r = service_spawn(s, s->control_command, true, false, &s->control_pid)) < 0)
goto fail;
return;
fail:
log_warning("%s failed to run spawn next executable: %s", unit_id(UNIT(s)), strerror(-r));
if (s->state == SERVICE_STOP)
service_enter_stop_post(s, false);
else if (s->state == SERVICE_STOP_POST)
service_enter_dead(s, false, true);
else
service_enter_stop(s, false);
}
static int service_start(Unit *u) {
Service *s = SERVICE(u);
assert(s);
/* We cannot fulfill this request right now, try again later
* please! */
if (s->state == SERVICE_STOP ||
s->state == SERVICE_STOP_SIGTERM ||
s->state == SERVICE_STOP_SIGKILL ||
s->state == SERVICE_STOP_POST ||
s->state == SERVICE_FINAL_SIGTERM ||
s->state == SERVICE_FINAL_SIGKILL)
return -EAGAIN;
/* Already on it! */
if (s->state == SERVICE_START_PRE ||
s->state == SERVICE_START ||
s->state == SERVICE_START_POST)
return 0;
assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE || s->state == SERVICE_AUTO_RESTART);
s->failure = false;
s->main_pid_known = false;
service_enter_start_pre(s);
return 0;
}
static int service_stop(Unit *u) {
Service *s = SERVICE(u);
assert(s);
if (s->state == SERVICE_START_PRE ||
s->state == SERVICE_START ||
s->state == SERVICE_START_POST ||
s->state == SERVICE_RELOAD)
return -EAGAIN;
if (s->state == SERVICE_AUTO_RESTART) {
service_set_state(s, SERVICE_DEAD);
return 0;
}
assert(s->state == SERVICE_RUNNING);
service_enter_stop(s, true);
return 0;
}
static int service_reload(Unit *u) {
Service *s = SERVICE(u);
assert(s);
assert(s->state == SERVICE_RUNNING);
service_enter_reload(s);
return 0;
}
static bool service_can_reload(Unit *u) {
Service *s = SERVICE(u);
assert(s);
return !!s->exec_command[SERVICE_EXEC_RELOAD];
}
static UnitActiveState service_active_state(Unit *u) {
assert(u);
return state_translation_table[SERVICE(u)->state];
}
static int main_pid_good(Service *s) {
assert(s);
/* Returns 0 if the pid is dead, 1 if it is good, -1 if we
* don't know */
/* If we know the pid file, then lets just check if it is
* still valid */
if (s->main_pid_known)
return s->main_pid > 0;
/* We don't know the pid */
return -1;
}
static bool control_pid_good(Service *s) {
assert(s);
return s->control_pid > 0;
}
static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
Service *s = SERVICE(u);
bool success;
assert(s);
assert(pid >= 0);
success = code == CLD_EXITED && status == 0;
s->failure = s->failure || !success;
if (s->main_pid == pid) {
exec_status_fill(&s->main_exec_status, pid, code, status);
s->main_pid = 0;
if (s->type == SERVICE_SIMPLE) {
assert(s->exec_command[SERVICE_EXEC_START]);
s->exec_command[SERVICE_EXEC_START]->exec_status = s->main_exec_status;
}
log_debug("%s: main process exited, code=%s status=%i", unit_id(u), sigchld_code(code), status);
/* The service exited, so the service is officially
* gone. */
switch (s->state) {
case SERVICE_START_POST:
case SERVICE_RELOAD:
case SERVICE_STOP:
/* Need to wait until the operation is
* done */
break;
case SERVICE_RUNNING:
service_enter_stop(s, success);
break;
case SERVICE_STOP_SIGTERM:
case SERVICE_STOP_SIGKILL:
if (!control_pid_good(s))
service_enter_stop_post(s, success);
/* If there is still a control process, wait for that first */
break;
default:
assert_not_reached("Uh, main process died at wrong time.");
}
} else if (s->control_pid == pid) {
assert(s->control_command);
exec_status_fill(&s->control_command->exec_status, pid, code, status);
s->control_pid = 0;
log_debug("%s: control process exited, code=%s status=%i", unit_id(u), sigchld_code(code), status);
/* If we are shutting things down anyway we
* don't care about failing commands. */
if (s->control_command->command_next &&
(success || (s->state == SERVICE_EXEC_STOP || s->state == SERVICE_EXEC_STOP_POST)))
/* There is another command to *
* execute, so let's do that. */
service_run_next(s, success);
else {
/* No further commands for this step, so let's
* figure out what to do next */
log_debug("%s got final SIGCHLD for state %s", unit_id(u), state_string_table[s->state]);
switch (s->state) {
case SERVICE_START_PRE:
if (success)
service_enter_start(s);
else
service_enter_stop(s, false);
break;
case SERVICE_START:
assert(s->type == SERVICE_FORKING);
/* Let's try to load the pid
* file here if we can. We
* ignore the return value,
* since the PID file might
* actually be created by a
* START_POST script */
if (success) {
if (s->pid_file)
service_load_pid_file(s);
service_enter_start_post(s);
} else
service_enter_stop(s, false);
break;
case SERVICE_START_POST:
if (success && s->pid_file && !s->main_pid_known) {
int r;
/* Hmm, let's see if we can
* load the pid now after the
* start-post scripts got
* executed. */
if ((r = service_load_pid_file(s)) < 0)
log_warning("%s: failed to load PID file %s: %s", unit_id(UNIT(s)), s->pid_file, strerror(-r));
}
/* Fall through */
case SERVICE_RELOAD:
if (success) {
if (main_pid_good(s) != 0)
service_set_state(s, SERVICE_RUNNING);
else
service_enter_stop(s, true);
} else
service_enter_stop(s, false);
break;
case SERVICE_STOP:
if (main_pid_good(s) > 0)
/* Still not dead and we know the PID? Let's go hunting. */
service_enter_signal(s, SERVICE_STOP_SIGTERM, success);
else
service_enter_stop_post(s, success);
break;
case SERVICE_STOP_SIGTERM:
case SERVICE_STOP_SIGKILL:
if (main_pid_good(s) <= 0)
service_enter_stop_post(s, success);
/* If there is still a service
* process around, wait until
* that one quit, too */
break;
case SERVICE_STOP_POST:
case SERVICE_FINAL_SIGTERM:
case SERVICE_FINAL_SIGKILL:
service_enter_dead(s, success, true);
break;
default:
assert_not_reached("Uh, control process died at wrong time.");
}
}
} else
assert_not_reached("Got SIGCHLD for unkown PID");
}
static void service_timer_event(Unit *u, uint64_t elapsed, Watch* w) {
Service *s = SERVICE(u);
assert(s);
assert(elapsed == 1);
assert(w == &s->timer_watch);
switch (s->state) {
case SERVICE_START_PRE:
case SERVICE_START:
case SERVICE_START_POST:
case SERVICE_RELOAD:
log_warning("%s operation timed out. Stopping.", unit_id(u));
service_enter_stop(s, false);
break;
case SERVICE_STOP:
log_warning("%s stopping timed out. Terminating.", unit_id(u));
service_enter_signal(s, SERVICE_STOP_SIGTERM, false);
break;
case SERVICE_STOP_SIGTERM:
log_warning("%s stopping timed out. Killing.", unit_id(u));
service_enter_signal(s, SERVICE_STOP_SIGKILL, false);
break;
case SERVICE_STOP_SIGKILL:
/* Uh, wie sent a SIGKILL and it is still not gone?
* Must be something we cannot kill, so let's just be
* weirded out and continue */
log_warning("%s still around after SIGKILL. Ignoring.", unit_id(u));
service_enter_stop_post(s, false);
break;
case SERVICE_STOP_POST:
log_warning("%s stopping timed out (2). Terminating.", unit_id(u));
service_enter_signal(s, SERVICE_FINAL_SIGTERM, false);
break;
case SERVICE_FINAL_SIGTERM:
log_warning("%s stopping timed out (2). Killing.", unit_id(u));
service_enter_signal(s, SERVICE_FINAL_SIGKILL, false);
break;
case SERVICE_FINAL_SIGKILL:
log_warning("%s still around after SIGKILL (2). Entering maintainance mode.", unit_id(u));
service_enter_dead(s, false, true);
break;
case SERVICE_AUTO_RESTART:
log_debug("%s holdoff time over, scheduling restart.", unit_id(u));
service_enter_restart(s);
break;
default:
assert_not_reached("Timeout at wrong time.");
}
}
const UnitVTable service_vtable = {
.suffix = ".service",
.init = service_init,
.done = service_done,
.dump = service_dump,
.start = service_start,
.stop = service_stop,
.reload = service_reload,
.can_reload = service_can_reload,
.active_state = service_active_state,
.sigchld_event = service_sigchld_event,
.timer_event = service_timer_event,
};
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