servers/rs/type.h

   1 /* Type definitions used in RS.
   2  */
   3 #ifndef RS_TYPE_H
   4 #define RS_TYPE_H
   5
   6 /* Definition of an entry of the boot image priv table. */
   7 struct boot_image_priv {
   8   endpoint_t endpoint;         /* process endpoint number */
   9   char label[RS_MAX_LABEL_LEN]; /* label to assign to this service */
  10
  11   int flags;                   /* privilege flags */
  12 };
  13
  14 /* Definition of an entry of the boot image sys table. */
  15 struct boot_image_sys {
  16   endpoint_t endpoint;         /* process endpoint number */
  17
  18   int flags;                   /* system flags */
  19 };
  20
  21 /* Definition of an entry of the boot image dev table. */
  22 struct boot_image_dev {
  23   endpoint_t endpoint;         /* process endpoint number */
  24
  25   dev_t dev_nr;                /* major device number */
  26 };
  27
  28 /* Definition of an entry of the system process table. */
  29 struct rproc {
  30   struct rprocpub *r_pub;       /* pointer to the corresponding public entry */
  31   struct rproc *r_old_rp;       /* pointer to the slot with the old version */
  32   struct rproc *r_new_rp;       /* pointer to the slot with the new version */
  33   struct rproc *r_prev_rp;      /* pointer to the slot with the prev replica */
  34   struct rproc *r_next_rp;      /* pointer to the slot with the next replica */
  35   pid_t r_pid;                  /* process id, -1 if the process is not there */
  36
  37   int r_restarts;               /* number of restarts (initially zero) */
  38   long r_backoff;               /* number of periods to wait before revive */
  39   unsigned r_flags;             /* status and policy flags */
  40
  41   long r_period;                /* heartbeat period (or zero) */
  42   clock_t r_check_tm;           /* timestamp of last check */
  43   clock_t r_alive_tm;           /* timestamp of last heartbeat */
  44   clock_t r_stop_tm;            /* timestamp of SIGTERM signal */
  45   endpoint_t r_caller;          /* RS_LATEREPLY caller */
  46   int r_caller_request;         /* RS_LATEREPLY caller request */
  47
  48   char r_cmd[MAX_COMMAND_LEN];  /* raw command plus arguments */
  49   char r_args[MAX_COMMAND_LEN]; /* null-separated raw command plus arguments */
  50 #define ARGV_ELEMENTS (MAX_NR_ARGS+2) /* path, args, null */
  51   char *r_argv[ARGV_ELEMENTS];
  52   int r_argc;                   /* number of arguments */
  53   char r_script[MAX_SCRIPT_LEN]; /* name of the restart script executable */
  54
  55   char *r_exec;                 /* Executable image */
  56   size_t r_exec_len;            /* Length of image */
  57
  58   struct priv r_priv;           /* Privilege structure to be passed to the
  59                                  * kernel.
  60                                  */
  61   uid_t r_uid;
  62   endpoint_t r_scheduler;       /* scheduler */
  63   int r_priority;               /* negative values are reserved for special meanings */
  64   int r_quantum;
  65   int r_cpu;
  66
  67   /* Backup values from the privilege structure. */
  68   struct io_range r_io_tab[NR_IO_RANGE];
  69   int r_nr_io_range;
  70   int r_irq_tab[NR_IRQ];
  71   int r_nr_irq;
  72
  73   char r_ipc_list[MAX_IPC_LIST];
  74   int r_nr_control;
  75   char r_control[RS_NR_CONTROL][RS_MAX_LABEL_LEN];
  76 };
  77
  78 /* Definition of the global update descriptor. */
  79 struct rupdate {
  80   int flags;               /* flags to keep track of the status of the update */
  81   clock_t prepare_tm;      /* timestamp of when the update was scheduled */
  82   clock_t prepare_maxtime; /* max time to wait for the process to be ready */
  83   struct rproc *rp;        /* the process under update */
  84 };
  85
  86 #endif /* RS_TYPE_H */