minix/servers/rs/const.h
David van Moolenbroek ac9ab099c8 General cleanup:
- clean up kernel section of minix/com.h somewhat
- remove ALLOCMEM and VM_ALLOCMEM calls
- remove non-safecopy and minix-vmd support from Inet
- remove SYS_VIRVCOPY and SYS_PHYSVCOPY calls
- remove obsolete segment encoding in SYS_SAFECOPY*
- remove DEVCTL call, svrctl(FSDEVUNMAP), map_driverX
- remove declarations of unimplemented svrctl requests
- remove everything related to swapping to disk
- remove floppysetup.sh
- remove traces of rescue device
- update DESCRIBE.sh with new devices
- some other small changes
2010-01-05 19:39:27 +00:00

87 lines
4.2 KiB
C

/* Global constants used in RS.
*/
#ifndef RS_CONST_H
#define RS_CONST_H
/* Space reserved for program and arguments. */
#define MAX_COMMAND_LEN 512 /* maximum argument string length */
#define MAX_LABEL_LEN 16 /* Unique name of (this instance of)
* the service
*/
#define MAX_SCRIPT_LEN 256 /* maximum restart script name length */
#define MAX_NR_ARGS 4 /* maximum number of arguments */
#define MAX_IPC_LIST 256 /* Max size of list for IPC target
* process names
*/
#define MAX_VM_LIST 256
/* Flag values. */
#define RS_IN_USE 0x001 /* set when process slot is in use */
#define RS_EXITING 0x004 /* set when exit is expected */
#define RS_REFRESHING 0x008 /* set when refresh must be done */
#define RS_NOPINGREPLY 0x010 /* service failed to reply to a ping request */
#define RS_KILLED 0x020 /* service is killed */
#define RS_CRASHED 0x040 /* service crashed */
#define RS_LATEREPLY 0x080 /* no reply sent to RS_DOWN caller yet */
#define RS_SIGNALED 0x100 /* service crashed */
#define RS_UPDATING 0x200 /* set when update must be done */
/* Sys flag values. */
#define SF_CORE_PROC 0x001 /* set for core system processes
* XXX FIXME: This should trigger a system
* panic when a CORE_PROC service cannot
* be restarted. We need better error-handling
* in RS to change this.
*/
#define SF_NEED_COPY 0x004 /* set when process needs copy to restart */
#define SF_USE_COPY 0x008 /* set when process has a copy in memory */
/* Constants determining RS period and binary exponential backoff. */
#define RS_DELTA_T 60 /* check every T ticks */
#define BACKOFF_BITS (sizeof(long)*8) /* bits in backoff field */
#define MAX_BACKOFF 30 /* max backoff in RS_DELTA_T */
/* Magic process table addresses. */
#define BEG_RPROC_ADDR (&rproc[0])
#define END_RPROC_ADDR (&rproc[NR_SYS_PROCS])
#define NIL_RPROC ((struct mproc *) 0)
/* Constants for live update. */
#define RS_DEFAULT_PREPARE_MAXTIME 2*RS_DELTA_T /* default prepare max time */
#define RS_MAX_PREPARE_MAXTIME 20*RS_DELTA_T /* max prepare max time */
/* Definitions for boot info tables. */
#define NULL_BOOT_NR NR_BOOT_PROCS /* marks a null boot entry */
#define DEFAULT_BOOT_NR NR_BOOT_PROCS /* marks the default boot entry */
#define SYS_ALL_C (NR_SYS_CALLS+0) /* specifies all calls */
#define SYS_NULL_C (NR_SYS_CALLS+1) /* marks a null call entry */
/* Define privilege flags for the various process types. */
#define SRV_F (SYS_PROC | PREEMPTIBLE) /* system services */
#define DSRV_F (SRV_F | DYN_PRIV_ID | CHECK_IO_PORT | CHECK_IRQ)
/* dynamic system services */
#define VM_F (SYS_PROC) /* vm */
#define RUSR_F (BILLABLE | PREEMPTIBLE) /* root user proc */
/* Define system call traps for the various process types. These call masks
* determine what system call traps a process is allowed to make.
*/
#define SRV_T (~0) /* system services */
#define DSRV_T SRV_T /* dynamic system services */
#define RUSR_T (1 << SENDREC) /* root user proc */
/* Send masks determine to whom processes can send messages or notifications. */
#define SRV_M (~0) /* system services */
#define RUSR_M \
( spi_to(PM_PROC_NR) | spi_to(FS_PROC_NR) | spi_to(RS_PROC_NR) \
| spi_to(VM_PROC_NR) ) /* root user proc */
/* Define sys flags for the various process types. */
#define SRV_SF (SF_CORE_PROC | SF_NEED_COPY) /* system services */
#define SRVC_SF (SRV_SF | SF_USE_COPY) /* system services with a copy */
#define DSRV_SF (0) /* dynamic system services */
#endif /* RS_CONST_H */