1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
6 This file is part of systemd.
8 Copyright 2010 Lennart Poettering
10 systemd is free software; you can redistribute it and/or modify it
11 under the terms of the GNU Lesser General Public License as published by
12 the Free Software Foundation; either version 2.1 of the License, or
13 (at your option) any later version.
15 systemd is distributed in the hope that it will be useful, but
16 WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 Lesser General Public License for more details.
20 You should have received a copy of the GNU Lesser General Public License
21 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 typedef struct Service Service;
28 #include "ratelimit.h"
32 typedef enum ServiceState {
38 SERVICE_EXITED, /* Nothing is running anymore, but RemainAfterExit is true hence this is OK */
40 SERVICE_STOP, /* No STOP_PRE state, instead just register multiple STOP executables */
44 SERVICE_FINAL_SIGTERM, /* In case the STOP_POST executable hangs, we shoot that down, too */
45 SERVICE_FINAL_SIGKILL,
49 _SERVICE_STATE_INVALID = -1
52 typedef enum ServiceRestart {
54 SERVICE_RESTART_ON_SUCCESS,
55 SERVICE_RESTART_ON_FAILURE,
56 SERVICE_RESTART_ON_ABORT,
57 SERVICE_RESTART_ALWAYS,
59 _SERVICE_RESTART_INVALID = -1
62 typedef enum ServiceType {
63 SERVICE_SIMPLE, /* we fork and go on right-away (i.e. modern socket activated daemons) */
64 SERVICE_FORKING, /* forks by itself (i.e. traditional daemons) */
65 SERVICE_ONESHOT, /* we fork and wait until the program finishes (i.e. programs like fsck which run and need to finish before we continue) */
66 SERVICE_DBUS, /* we fork and wait until a specific D-Bus name appears on the bus */
67 SERVICE_NOTIFY, /* we fork and wait until a daemon sends us a ready message with sd_notify() */
68 SERVICE_IDLE, /* much like simple, but delay exec() until all jobs are dispatched. */
70 _SERVICE_TYPE_INVALID = -1
73 typedef enum ServiceExecCommand {
74 SERVICE_EXEC_START_PRE,
76 SERVICE_EXEC_START_POST,
79 SERVICE_EXEC_STOP_POST,
80 _SERVICE_EXEC_COMMAND_MAX,
81 _SERVICE_EXEC_COMMAND_INVALID = -1
84 typedef enum NotifyAccess {
89 _NOTIFY_ACCESS_INVALID = -1
92 typedef enum ServiceResult {
94 SERVICE_FAILURE_RESOURCES,
95 SERVICE_FAILURE_TIMEOUT,
96 SERVICE_FAILURE_EXIT_CODE,
97 SERVICE_FAILURE_SIGNAL,
98 SERVICE_FAILURE_CORE_DUMP,
99 SERVICE_FAILURE_WATCHDOG,
101 _SERVICE_RESULT_INVALID = -1
104 typedef enum StartLimitAction {
105 SERVICE_START_LIMIT_NONE,
106 SERVICE_START_LIMIT_REBOOT,
107 SERVICE_START_LIMIT_REBOOT_FORCE,
108 SERVICE_START_LIMIT_REBOOT_IMMEDIATE,
109 _SERVICE_START_LIMIT_MAX,
110 _SERVICE_START_LIMIT_INVALID = -1
117 ServiceRestart restart;
119 /* If set we'll read the main daemon PID from this file */
123 usec_t timeout_start_usec;
124 usec_t timeout_stop_usec;
126 dual_timestamp watchdog_timestamp;
127 usec_t watchdog_usec;
128 Watch watchdog_watch;
130 ExecCommand* exec_command[_SERVICE_EXEC_COMMAND_MAX];
132 ExecContext exec_context;
133 KillContext kill_context;
135 ServiceState state, deserialized_state;
137 /* The exit status of the real main process */
138 ExecStatus main_exec_status;
140 /* The currently executed control process */
141 ExecCommand *control_command;
143 /* The currently executed main process, which may be NULL if
144 * the main process got started via forking mode and not by
146 ExecCommand *main_command;
148 /* The ID of the control command currently being executed */
149 ServiceExecCommand control_command_id;
151 pid_t main_pid, control_pid;
156 bool permissions_start_only;
157 bool root_directory_start_only;
158 bool remain_after_exit;
161 /* If we shut down, remember why */
162 ServiceResult result;
163 ServiceResult reload_result;
165 bool main_pid_known:1;
166 bool main_pid_alien:1;
167 bool bus_name_good:1;
168 bool forbid_restart:1;
169 bool got_socket_fd:1;
170 bool start_timeout_defined:1;
171 #ifdef HAVE_SYSV_COMPAT
175 int sysv_start_priority_from_rcnd;
176 int sysv_start_priority;
178 char *sysv_runlevels;
185 RateLimit start_limit;
186 StartLimitAction start_limit_action;
188 UnitRef accept_socket;
191 PathSpec *pid_file_pathspec;
193 NotifyAccess notify_access;
196 extern const UnitVTable service_vtable;
200 int service_set_socket_fd(Service *s, int fd, struct Socket *socket);
202 const char* service_state_to_string(ServiceState i);
203 ServiceState service_state_from_string(const char *s);
205 const char* service_restart_to_string(ServiceRestart i);
206 ServiceRestart service_restart_from_string(const char *s);
208 const char* service_type_to_string(ServiceType i);
209 ServiceType service_type_from_string(const char *s);
211 const char* service_exec_command_to_string(ServiceExecCommand i);
212 ServiceExecCommand service_exec_command_from_string(const char *s);
214 const char* notify_access_to_string(NotifyAccess i);
215 NotifyAccess notify_access_from_string(const char *s);
217 const char* service_result_to_string(ServiceResult i);
218 ServiceResult service_result_from_string(const char *s);
220 const char* start_limit_action_to_string(StartLimitAction i);
221 StartLimitAction start_limit_action_from_string(const char *s);