minix/servers/rs/type.h
Cristiano Giuffrida 6f912993ff Share exec images in RS.
RS CHANGES:
- RS retains information on both labels and process names now. Labels for boot
processes are configured in the boot image priv table. Process names are
inherited from the in-kernel boot image table.
- When RS_REUSE is specified in do_up, RS looks for an existing slot having the
same process name as the one we are about to start. If one is found with
an in-memory copy of its executable image, the image is then shared between
the two processes, rather than copying it again. This behavior can be specified
by using 'service -r' when starting a system service from the command line.
2009-12-23 14:05:20 +00:00

88 lines
3.2 KiB
C

/* Type definitions used in RS.
*/
#ifndef RS_TYPE_H
#define RS_TYPE_H
/* Definition of an entry of the boot image priv table. */
struct boot_image_priv {
endpoint_t endpoint; /* process endpoint number */
char label[MAX_LABEL_LEN]; /* label to assign to this service */
int flags; /* privilege flags */
short trap_mask; /* allowed system call traps */
int ipc_to; /* send mask protection */
int *k_calls; /* kernel call protection */
};
/* Definition of an entry of the boot image sys table. */
struct boot_image_sys {
endpoint_t endpoint; /* process endpoint number */
int flags; /* system flags */
};
/* Definition of an entry of the boot image dev table. */
struct boot_image_dev {
endpoint_t endpoint; /* process endpoint number */
dev_t dev_nr; /* major device number */
int dev_style; /* device style */
long period; /* heartbeat period (or zero) */
};
/* Definition of an entry of the system process table. */
struct rproc {
endpoint_t r_proc_nr_e; /* process endpoint number */
pid_t r_pid; /* process id, -1 if the process is not there */
dev_t r_dev_nr; /* major device number */
int r_dev_style; /* device style */
int r_restarts; /* number of restarts (initially zero) */
long r_backoff; /* number of periods to wait before revive */
unsigned r_flags; /* status and policy flags */
unsigned r_sys_flags; /* sys flags */
long r_period; /* heartbeat period (or zero) */
clock_t r_check_tm; /* timestamp of last check */
clock_t r_alive_tm; /* timestamp of last heartbeat */
clock_t r_stop_tm; /* timestamp of SIGTERM signal */
endpoint_t r_caller; /* RS_LATEREPLY caller */
char *r_exec; /* Executable image */
size_t r_exec_len; /* Length of image */
char r_label[MAX_LABEL_LEN]; /* label of this service */
char r_proc_name[P_NAME_LEN]; /* process name of this service */
char r_cmd[MAX_COMMAND_LEN]; /* raw command plus arguments */
char r_script[MAX_SCRIPT_LEN]; /* name of the restart script executable */
char *r_argv[MAX_NR_ARGS+2]; /* parsed arguments vector */
int r_argc; /* number of arguments */
/* Resources */
int r_set_resources;
struct priv r_priv; /* Privilege structure to be passed to the
* kernel.
*/
uid_t r_uid;
int r_nice;
int r_nr_pci_id; /* Number of PCI devices IDs */
struct { u16_t vid; u16_t did; } r_pci_id[RSS_NR_PCI_ID];
int r_nr_pci_class; /* Number of PCI class IDs */
struct { u32_t class; u32_t mask; } r_pci_class[RSS_NR_PCI_CLASS];
u32_t r_call_mask[RSS_NR_SYSTEM];
char r_ipc_list[MAX_IPC_LIST];
bitchunk_t r_vm[RSS_VM_CALL_SIZE];
int r_nr_control;
char r_control[RSS_NR_CONTROL][MAX_LABEL_LEN];
};
/* Definition of the global update descriptor. */
struct rupdate {
int flags; /* flags to keep track of the status of the update */
clock_t prepare_tm; /* timestamp of when the update was scheduled */
clock_t prepare_maxtime; /* max time to wait for the process to be ready */
struct rproc *rp; /* the process under update */
};
#endif /* RS_TYPE_H */