87 lines
3.5 KiB
C
87 lines
3.5 KiB
C
/* Global constants used in RS.
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*/
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#ifndef RS_CONST_H
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#define RS_CONST_H
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#define DEBUG_DEFAULT 0
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#define PRIV_DEBUG_DEFAULT 0
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#ifndef DEBUG
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#define DEBUG DEBUG_DEFAULT
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#endif
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#ifndef PRIV_DEBUG
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#define PRIV_DEBUG PRIV_DEBUG_DEFAULT
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#endif
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/* Space reserved for program and arguments. */
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#define MAX_COMMAND_LEN 512 /* maximum argument string length */
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#define MAX_SCRIPT_LEN 256 /* maximum restart script name length */
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#define MAX_NR_ARGS 10 /* maximum number of arguments */
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#define MAX_IPC_LIST 256 /* Max size of list for IPC target
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* process names
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*/
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/* Flag values. */
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#define RS_IN_USE 0x001 /* set when process slot is in use */
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#define RS_EXITING 0x002 /* set when exit is expected */
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#define RS_REFRESHING 0x004 /* set when refresh must be done */
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#define RS_NOPINGREPLY 0x008 /* service failed to reply to a ping request */
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#define RS_TERMINATED 0x010 /* service has terminated */
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#define RS_LATEREPLY 0x020 /* no reply sent to RS_DOWN caller yet */
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#define RS_INITIALIZING 0x040 /* set when init is in progress */
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#define RS_UPDATING 0x080 /* set when update is in progress */
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#define RS_ACTIVE 0x100 /* set for the active instance of a service */
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#define RS_REINCARNATE 0x200 /* after exit, restart with a new endpoint */
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/* Sys flag values. */
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#define SF_CORE_SRV 0x001 /* set for core system services */
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#define SF_SYNCH_BOOT 0X002 /* set when process needs synch boot init */
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#define SF_NEED_COPY 0x004 /* set when process needs copy to start */
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#define SF_USE_COPY 0x008 /* set when process has a copy in memory */
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#define SF_NEED_REPL 0x010 /* set when process needs replica to start */
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#define SF_USE_REPL 0x020 /* set when process has a replica */
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#define SF_NO_BIN_EXP 0x040 /* set when we should ignore binary exp. offset */
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#define IMM_SF \
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(SF_NO_BIN_EXP | SF_CORE_SRV | SF_SYNCH_BOOT | SF_NEED_COPY | SF_NEED_REPL) /* immutable */
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/* Constants determining RS period and binary exponential backoff. */
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#define RS_INIT_T (system_hz * 10) /* allow T ticks for init */
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#define RS_DELTA_T (system_hz) /* check every T ticks */
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#define BACKOFF_BITS (sizeof(long)*8) /* bits in backoff field */
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#define MAX_BACKOFF 30 /* max backoff in RS_DELTA_T */
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/* Magic process table addresses. */
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#define BEG_RPROC_ADDR (&rproc[0])
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#define END_RPROC_ADDR (&rproc[NR_SYS_PROCS])
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/* Constants for live update. */
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#define RS_DEFAULT_PREPARE_MAXTIME 2*RS_DELTA_T /* default prepare max time */
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#define RS_MAX_PREPARE_MAXTIME 20*RS_DELTA_T /* max prepare max time */
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/* Definitions for boot info tables. */
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#define NULL_BOOT_NR NR_BOOT_PROCS /* marks a null boot entry */
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#define DEFAULT_BOOT_NR NR_BOOT_PROCS /* marks the default boot entry */
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/* Define sys flags for the various process types. */
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#define SRV_SF (SF_CORE_SRV) /* system services */
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#define SRVR_SF (SRV_SF | SF_NEED_REPL) /* services needing a replica */
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#define DSRV_SF (0) /* dynamic system services */
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#define VM_SF (SRVR_SF) /* vm */
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/* Shorthands. */
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#define SRV_OR_USR(rp, X, Y) (rp->r_priv.s_flags & SYS_PROC ? X : Y)
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/* Reply flags. */
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#define RS_DONTREPLY 0
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#define RS_REPLY 1
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/* Swap flags. */
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#define RS_DONTSWAP 0
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#define RS_SWAP 1
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#endif /* RS_CONST_H */
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