main: try to block signals before executing crash shell

[elogind.git] / service.h

diff --git a/service.h b/service.h
index d7f2c708dd65926148ba7ba3558ef73dee81a840..f357fc857e4f3e55fe6d82beda3c7ed9d30397b1 100644 (file)
--- a/service.h
+++ b/service.h
@@ -3,11 +3,29 @@
 #ifndef fooservicehfoo
 #define fooservicehfoo
 
+/***
+  This file is part of systemd.
+
+  Copyright 2010 Lennart Poettering
+
+  systemd is free software; you can redistribute it and/or modify it
+  under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
 typedef struct Service Service;
 
-#include "name.h"
-#include "socket.h"
-#include "timer.h"
+#include "unit.h"
+#include "ratelimit.h"
 
 typedef enum ServiceState {
         SERVICE_DEAD,
@@ -15,51 +33,100 @@ typedef enum ServiceState {
         SERVICE_START,
         SERVICE_START_POST,
         SERVICE_RUNNING,
-        SERVICE_RELOAD_PRE,
+        SERVICE_EXITED,            /* Nothing is running anymore, but ValidNoProcess is true, ehnce this is OK */
         SERVICE_RELOAD,
-        SERVICE_RELOAD_POST,
-        SERVICE_STOP_PRE,
-        SERVICE_STOP,
-        SERVICE_SIGTERM,
-        SERVICE_SIGKILL,
+        SERVICE_STOP,              /* No STOP_PRE state, instead just register multiple STOP executables */
+        SERVICE_STOP_SIGTERM,
+        SERVICE_STOP_SIGKILL,
         SERVICE_STOP_POST,
+        SERVICE_FINAL_SIGTERM,     /* In case the STOP_POST executable hangs, we shoot that down, too */
+        SERVICE_FINAL_SIGKILL,
         SERVICE_MAINTAINANCE,
+        SERVICE_AUTO_RESTART,
         _SERVICE_STATE_MAX,
+        _SERVICE_STATE_INVALID = -1
 } ServiceState;
 
-typedef enum ServiceMode {
+typedef enum ServiceRestart {
         SERVICE_ONCE,
-        SERVICE_RESTART
-} ServiceMode;
+        SERVICE_RESTART_ON_SUCCESS,
+        SERVICE_RESTART_ALWAYS,
+        _SERVICE_RESTART_MAX,
+        _SERVICE_RESTART_INVALID = -1
+} ServiceRestart;
+
+typedef enum ServiceType {
+        SERVICE_FORKING,  /* forks by itself (i.e. traditional daemons) */
+        SERVICE_SIMPLE,   /* we fork and go on right-away (i.e. modern socket activated daemons)*/
+        SERVICE_FINISH,   /* we fork and wait until the program finishes (i.e. programs like fsck which run and need to finish before we continue) */
+        _SERVICE_TYPE_MAX,
+        _SERVICE_TYPE_INVALID = -1
+} ServiceType;
 
 typedef enum ServiceExecCommand {
         SERVICE_EXEC_START_PRE,
         SERVICE_EXEC_START,
         SERVICE_EXEC_START_POST,
-        SERVICE_EXEC_RELOAD_PRE,
         SERVICE_EXEC_RELOAD,
-        SERVICE_EXEC_RELOAD_POST,
-        SERVICE_EXEC_STOP_PRE,
         SERVICE_EXEC_STOP,
         SERVICE_EXEC_STOP_POST,
-        _SERVICE_EXEC_MAX
+        _SERVICE_EXEC_COMMAND_MAX,
+        _SERVICE_EXEC_COMMAND_INVALID = -1
 } ServiceExecCommand;
 
 struct Service {
         Meta meta;
 
-        ServiceState state;
-        ServiceMode mode;
+        ServiceType type;
+        ServiceRestart restart;
+
+        /* If set we'll read the main daemon PID from this file */
+        char *pid_file;
+
+        usec_t restart_usec;
+        usec_t timeout_usec;
 
-        ExecCommand* exec_command[_SERVICE_EXEC_MAX];
+        ExecCommand* exec_command[_SERVICE_EXEC_COMMAND_MAX];
         ExecContext exec_context;
 
-        pid_t service_pid, control_pid;
+        bool permissions_start_only;
+        bool root_directory_start_only;
+        bool valid_no_process;
+
+        ServiceState state;
 
-        Socket *socket;
-        Timer *timer;
+        KillMode kill_mode;
+
+        ExecStatus main_exec_status;
+
+        ExecCommand *control_command;
+        pid_t main_pid, control_pid;
+        bool main_pid_known:1;
+
+        bool failure:1; /* if we shut down, remember why */
+
+        bool sysv_has_lsb:1;
+        char *sysv_path;
+        int sysv_start_priority;
+        char *sysv_runlevels;
+
+        RateLimit ratelimit;
+
+        Watch timer_watch;
 };
 
-const NameVTable service_vtable;
+extern const UnitVTable service_vtable;
+
+const char* service_state_to_string(ServiceState i);
+ServiceState service_state_from_string(const char *s);
+
+const char* service_restart_to_string(ServiceRestart i);
+ServiceRestart service_restart_from_string(const char *s);
+
+const char* service_type_to_string(ServiceType i);
+ServiceType service_type_from_string(const char *s);
+
+const char* service_exec_command_to_string(ServiceExecCommand i);
+ServiceExecCommand service_exec_command_from_string(const char *s);
 
 #endif