06b6e5624a
- sys_schedule can change only selected values, -1 means that the current value should be kept unchanged. For instance we mostly want to change the scheduling quantum and priority but we want to keep the process at the current cpu - RS can hand off its processes to scheduler - service can read the destination cpu from system.conf - RS can pass the information farther
83 lines
3.1 KiB
C
83 lines
3.1 KiB
C
/* Type definitions used in RS.
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*/
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#ifndef RS_TYPE_H
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#define RS_TYPE_H
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/* Definition of an entry of the boot image priv table. */
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struct boot_image_priv {
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endpoint_t endpoint; /* process endpoint number */
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char label[RS_MAX_LABEL_LEN]; /* label to assign to this service */
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int flags; /* privilege flags */
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};
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/* Definition of an entry of the boot image sys table. */
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struct boot_image_sys {
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endpoint_t endpoint; /* process endpoint number */
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int flags; /* system flags */
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};
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/* Definition of an entry of the boot image dev table. */
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struct boot_image_dev {
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endpoint_t endpoint; /* process endpoint number */
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int flags; /* device flags */
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dev_t dev_nr; /* major device number */
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int dev_style; /* device style */
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int dev_style2; /* device style for next major device number */
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};
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/* Definition of an entry of the system process table. */
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struct rproc {
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struct rprocpub *r_pub; /* pointer to the corresponding public entry */
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struct rproc *r_old_rp; /* pointer to the slot with the old version */
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struct rproc *r_new_rp; /* pointer to the slot with the new version */
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struct rproc *r_prev_rp; /* pointer to the slot with the prev replica */
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struct rproc *r_next_rp; /* pointer to the slot with the next replica */
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pid_t r_pid; /* process id, -1 if the process is not there */
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int r_restarts; /* number of restarts (initially zero) */
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long r_backoff; /* number of periods to wait before revive */
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unsigned r_flags; /* status and policy flags */
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long r_period; /* heartbeat period (or zero) */
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clock_t r_check_tm; /* timestamp of last check */
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clock_t r_alive_tm; /* timestamp of last heartbeat */
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clock_t r_stop_tm; /* timestamp of SIGTERM signal */
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endpoint_t r_caller; /* RS_LATEREPLY caller */
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int r_caller_request; /* RS_LATEREPLY caller request */
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char r_cmd[MAX_COMMAND_LEN]; /* raw command plus arguments */
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char r_args[MAX_COMMAND_LEN]; /* null-separated raw command plus arguments */
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char *r_argv[MAX_NR_ARGS+2]; /* parsed arguments vector */
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int r_argc; /* number of arguments */
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char r_script[MAX_SCRIPT_LEN]; /* name of the restart script executable */
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char *r_exec; /* Executable image */
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size_t r_exec_len; /* Length of image */
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struct priv r_priv; /* Privilege structure to be passed to the
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* kernel.
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*/
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uid_t r_uid;
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endpoint_t r_scheduler; /* scheduler */
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int r_priority; /* negative values are reserved for special meanings */
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int r_quantum;
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int r_cpu;
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char r_ipc_list[MAX_IPC_LIST];
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int r_nr_control;
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char r_control[RS_NR_CONTROL][RS_MAX_LABEL_LEN];
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};
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/* Definition of the global update descriptor. */
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struct rupdate {
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int flags; /* flags to keep track of the status of the update */
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clock_t prepare_tm; /* timestamp of when the update was scheduled */
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clock_t prepare_maxtime; /* max time to wait for the process to be ready */
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struct rproc *rp; /* the process under update */
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};
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#endif /* RS_TYPE_H */
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