service.h

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 #ifndef fooservicehfoo
   4 #define fooservicehfoo
   5
   6 typedef struct Service Service;
   7
   8 #include "unit.h"
   9 #include "ratelimit.h"
  10
  11 typedef enum ServiceState {
  12         SERVICE_DEAD,
  13         SERVICE_START_PRE,
  14         SERVICE_START,
  15         SERVICE_START_POST,
  16         SERVICE_RUNNING,
  17         SERVICE_RELOAD,
  18         SERVICE_STOP,              /* No STOP_PRE state, instead just register multiple STOP executables */
  19         SERVICE_STOP_SIGTERM,
  20         SERVICE_STOP_SIGKILL,
  21         SERVICE_STOP_POST,
  22         SERVICE_FINAL_SIGTERM,     /* In case the STOP_POST executable hangs, we shoot that down, too */
  23         SERVICE_FINAL_SIGKILL,
  24         SERVICE_MAINTAINANCE,
  25         SERVICE_AUTO_RESTART,
  26         _SERVICE_STATE_MAX,
  27 } ServiceState;
  28
  29 typedef enum ServiceRestart {
  30         SERVICE_ONCE,
  31         SERVICE_RESTART_ON_SUCCESS,
  32         SERVICE_RESTART_ALWAYS
  33 } ServiceRestart;
  34
  35 typedef enum ServiceType {
  36         SERVICE_FORKING,
  37         SERVICE_SIMPLE
  38 } ServiceType;
  39
  40 typedef enum ServiceExecCommand {
  41         SERVICE_EXEC_START_PRE,
  42         SERVICE_EXEC_START,
  43         SERVICE_EXEC_START_POST,
  44         SERVICE_EXEC_RELOAD,
  45         SERVICE_EXEC_STOP,
  46         SERVICE_EXEC_STOP_POST,
  47         _SERVICE_EXEC_MAX
  48 } ServiceExecCommand;
  49
  50 struct Service {
  51         Meta meta;
  52
  53         ServiceType type;
  54         ServiceRestart restart;
  55
  56         /* If set we'll read the main daemon PID from this file */
  57         char *pid_file;
  58
  59         usec_t restart_usec;
  60         usec_t timeout_usec;
  61
  62         ExecCommand* exec_command[_SERVICE_EXEC_MAX];
  63         ExecContext exec_context;
  64
  65         ServiceState state;
  66
  67         ExecStatus main_exec_status;
  68
  69         ExecCommand *control_command;
  70         pid_t main_pid, control_pid;
  71         bool main_pid_known:1;
  72
  73         bool failure:1; /* if we shut down, remember why */
  74         Watch timer_watch;
  75
  76         RateLimit ratelimit;
  77 };
  78
  79 const UnitVTable service_vtable;
  80
  81 #endif