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   int flags;                   /* device flags */
  26   dev_t dev_nr;                /* major device number */
  27   int dev_style;               /* device style */
  28   int dev_style2;              /* device style for next major device number */
  29 };
  30
  31 /* Definition of an entry of the system process table. */
  32 struct rproc {
  33   struct rprocpub *r_pub;       /* pointer to the corresponding public entry */
  34   struct rproc *r_old_rp;       /* pointer to the slot with the old version */
  35   struct rproc *r_new_rp;       /* pointer to the slot with the new version */
  36   struct rproc *r_prev_rp;      /* pointer to the slot with the prev replica */
  37   struct rproc *r_next_rp;      /* pointer to the slot with the next replica */
  38   pid_t r_pid;                  /* process id, -1 if the process is not there */
  39
  40   int r_restarts;               /* number of restarts (initially zero) */
  41   long r_backoff;               /* number of periods to wait before revive */
  42   unsigned r_flags;             /* status and policy flags */
  43
  44   long r_period;                /* heartbeat period (or zero) */
  45   clock_t r_check_tm;           /* timestamp of last check */
  46   clock_t r_alive_tm;           /* timestamp of last heartbeat */
  47   clock_t r_stop_tm;            /* timestamp of SIGTERM signal */
  48   endpoint_t r_caller;          /* RS_LATEREPLY caller */
  49   int r_caller_request;         /* RS_LATEREPLY caller request */
  50
  51   char r_cmd[MAX_COMMAND_LEN];  /* raw command plus arguments */
  52   char r_args[MAX_COMMAND_LEN]; /* null-separated raw command plus arguments */
  53 #define ARGV_ELEMENTS (MAX_NR_ARGS+2) /* path, args, null */
  54   char *r_argv[ARGV_ELEMENTS];
  55   int r_argc;                   /* number of arguments */
  56   char r_script[MAX_SCRIPT_LEN]; /* name of the restart script executable */
  57
  58   char *r_exec;                 /* Executable image */
  59   size_t r_exec_len;            /* Length of image */
  60
  61   struct priv r_priv;           /* Privilege structure to be passed to the
  62                                  * kernel.
  63                                  */
  64   uid_t r_uid;
  65   endpoint_t r_scheduler;       /* scheduler */
  66   int r_priority;               /* negative values are reserved for special meanings */
  67   int r_quantum;
  68   int r_cpu;
  69
  70   /* Backup values from the privilege structure. */
  71   struct io_range r_io_tab[NR_IO_RANGE];
  72   int r_nr_io_range;
  73   int r_irq_tab[NR_IRQ];
  74   int r_nr_irq;
  75
  76   char r_ipc_list[MAX_IPC_LIST];
  77   int r_nr_control;
  78   char r_control[RS_NR_CONTROL][RS_MAX_LABEL_LEN];
  79 };
  80
  81 /* Definition of the global update descriptor. */
  82 struct rupdate {
  83   int flags;               /* flags to keep track of the status of the update */
  84   clock_t prepare_tm;      /* timestamp of when the update was scheduled */
  85   clock_t prepare_maxtime; /* max time to wait for the process to be ready */
  86   struct rproc *rp;        /* the process under update */
  87 };
  88
  89 #endif /* RS_TYPE_H */