socket.h

   1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
   2
   3 #ifndef foosockethfoo
   4 #define foosockethfoo
   5
   6 typedef struct Socket Socket;
   7
   8 #include "manager.h"
   9 #include "unit.h"
  10 #include "socket-util.h"
  11
  12 typedef enum SocketState {
  13         SOCKET_DEAD,
  14         SOCKET_START_PRE,
  15         SOCKET_START_POST,
  16         SOCKET_LISTENING,
  17         SOCKET_RUNNING,
  18         SOCKET_STOP_PRE,
  19         SOCKET_STOP_PRE_SIGTERM,
  20         SOCKET_STOP_PRE_SIGKILL,
  21         SOCKET_STOP_POST,
  22         SOCKET_STOP_POST_SIGTERM,
  23         SOCKET_STOP_POST_SIGKILL,
  24         SOCKET_MAINTAINANCE,
  25         _SOCKET_STATE_MAX
  26 } SocketState;
  27
  28 typedef enum SocketExecCommand {
  29         SOCKET_EXEC_START_PRE,
  30         SOCKET_EXEC_START_POST,
  31         SOCKET_EXEC_STOP_PRE,
  32         SOCKET_EXEC_STOP_POST,
  33         _SOCKET_EXEC_MAX
  34 } SocketExecCommand;
  35
  36 typedef enum SocketType {
  37         SOCKET_SOCKET,
  38         SOCKET_FIFO
  39 } SocketType;
  40
  41 typedef struct SocketPort SocketPort;
  42
  43 struct SocketPort {
  44         SocketType type;
  45
  46         SocketAddress address;
  47         char *path;
  48
  49         int fd;
  50         Watch fd_watch;
  51
  52         LIST_FIELDS(SocketPort, port);
  53 };
  54
  55 struct Socket {
  56         Meta meta;
  57
  58         LIST_HEAD(SocketPort, ports);
  59
  60         /* Only for INET6 sockets: issue IPV6_V6ONLY sockopt */
  61         bool bind_ipv6_only;
  62         unsigned backlog;
  63
  64         usec_t timeout_usec;
  65
  66         ExecCommand* exec_command[_SOCKET_EXEC_MAX];
  67         ExecContext exec_context;
  68
  69         Service *service;
  70
  71         SocketState state;
  72
  73         ExecCommand* control_command;
  74         pid_t control_pid;
  75
  76         char *bind_to_device;
  77
  78         bool failure;
  79         Watch timer_watch;
  80 };
  81
  82 /* Called from the service code when collecting fds */
  83 int socket_collect_fds(Socket *s, int **fds, unsigned *n_fds);
  84
  85 /* Called from the service when it shut down */
  86 void socket_notify_service_dead(Socket *s);
  87
  88 extern const UnitVTable socket_vtable;
  89
  90 #endif