src/vlserver/vlserver.p.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #ifndef _VLSERVER_
  11 #define _VLSERVER_
  12
  13 #include "vldbint.h"
  14 #include <afs/afsutil.h>
  15
  16 extern struct vldstats dynamic_statistics;
  17
  18
  19
  20 #define HASHSIZE                8191    /* Must be prime */
  21 #define NULLO                   0
  22 #define VLDBALLOCCOUNT          500
  23
  24 /* Current upper limits limits on certain entries; increase with care! */
  25 #define BADSERVERID     255
  26 #define MAXSERVERID     254     /* permits 255 servers; was == 30 in version 1 */
  27 #define MAXSERVERFLAG   0x80
  28 #define MAXPARTITIONID  255
  29 #define MAXBUMPCOUNT    0x7fffffff      /* Infinite  upper bound on bumping for now */
  30 #define MAXLOCKTIME     0x7fffffff      /* Infinite locking for now */
  31
  32 /* Order of entries in the volumeid[] array */
  33 #define RWVOL           0
  34 #define ROVOL           1
  35 #define BACKVOL         2
  36
  37 /* Header struct holding stats, internal pointers and the hash tables */
  38 struct vlheader {
  39     struct vital_vlheader vital_header; /* all small critical stuff are in here */
  40     afs_uint32 IpMappedAddr[MAXSERVERID + 1];   /* Mapping of ip addresses to relative ones */
  41     afs_uint32 VolnameHash[HASHSIZE];   /* hash table for vol names */
  42     afs_uint32 VolidHash[MAXTYPES][HASHSIZE];   /* hash table for vol ids */
  43     afs_int32 SIT;              /* spare for poss future use */
  44 };
  45
  46 /* Vlentry's flags state */
  47 #define VLFREE          1       /* If in free list */
  48 #define VLDELETED       2       /* Entry is soft deleted */
  49 #define VLLOCKED        4       /* Advisory lock on entry */
  50 #define VLCONTBLOCK     8       /* Special continuation block entry */
  51
  52 /* Valid RelaseLock types */
  53 #define LOCKREL_TIMESTAMP   1
  54 #define LOCKREL_OPCODE      2
  55 #define LOCKREL_AFSID       4
  56
  57 /* Per repsite flags (serverFlags) */
  58 #define VLREPSITE_NEW   1       /* Replication site is got new release */
  59
  60 /* Internal representation of vldbentry; trying to save any bytes */
  61 struct vlentry {
  62     afs_uint32 volumeId[MAXTYPES];      /* Corresponding volume of each type */
  63     afs_int32 flags;            /* General flags */
  64     afs_int32 LockAfsId;        /* Person who locked entry */
  65     afs_int32 LockTimestamp;    /* lock time stamp */
  66     afs_uint32 cloneId;         /* used during cloning */
  67     afs_int32 spares0;          /* XXXX was AssociatedChain XXXX */
  68     afs_uint32 nextIdHash[MAXTYPES];    /* Next id hash table pointer (or freelist ->[0]) */
  69     afs_uint32 nextNameHash;    /* Next name hash table pointer */
  70     afs_int32 spares1[2];       /* long spares */
  71     char name[VL_MAXNAMELEN];   /* Volume name */
  72     char spares3;               /* XXX was volumeType XXXX */
  73     u_char serverNumber[OMAXNSERVERS];  /* Server # for each server that holds volume */
  74     u_char serverPartition[OMAXNSERVERS];       /* Server Partition number */
  75     u_char serverFlags[OMAXNSERVERS];   /* Server flags */
  76     char spares4;               /* XXX was RefCount XXX */
  77     char spares2[1];            /* for 32-bit alignment */
  78 };
  79
  80 struct nvlentry {
  81     afs_uint32 volumeId[MAXTYPES];      /* Corresponding volume of each type */
  82     afs_int32 flags;            /* General flags */
  83     afs_int32 LockAfsId;        /* Person who locked entry */
  84     afs_int32 LockTimestamp;    /* lock time stamp */
  85     afs_uint32 cloneId;         /* used during cloning */
  86     afs_uint32 nextIdHash[MAXTYPES];    /* Next id hash table pointer (or freelist ->[0]) */
  87     afs_uint32 nextNameHash;    /* Next name hash table pointer */
  88     char name[VL_MAXNAMELEN];   /* Volume name */
  89     u_char serverNumber[NMAXNSERVERS];  /* Server # for each server that holds volume */
  90     u_char serverPartition[NMAXNSERVERS];       /* Server Partition number */
  91     u_char serverFlags[NMAXNSERVERS];   /* Server flags */
  92 };
  93
  94 typedef struct vlheader vlheader;
  95 typedef struct vlentry vlentry;
  96 typedef struct nvlentry nvlentry;
  97
  98 #define DOFFSET(abase,astr,aitem) ((abase)+(((char *)(aitem)) - ((char *)(astr))))
  99
 100 #define VL_MHSRV_PERBLK         64
 101 #define VL_MAXIPADDRS_PERMH     15
 102 #define VL_MAX_ADDREXTBLKS      4
 103 #define VL_ADDREXTBLK_SIZE      8192
 104 struct extentaddr {
 105     union ex_un {
 106         struct {
 107             afs_int32 count;    /* # of valid addresses */
 108             afs_int32 spares1[2];
 109             afs_int32 flags;    /* must be in the same position as the vlentry's
 110                                    flags field */
 111             afs_uint32 contaddrs[VL_MAX_ADDREXTBLKS];
 112             afs_int32 spares2[24];
 113         } _ex_header;
 114         struct {
 115             afsUUID hostuuid;
 116             afs_int32 uniquifier;
 117             afs_uint32 addrs[VL_MAXIPADDRS_PERMH];
 118             afs_uint32 flags;
 119             afs_int32 spares[11];
 120         } _ex_addrentry;
 121     } _ex_un;
 122 };
 123 #define ex_count        _ex_un._ex_header.count
 124 #define ex_hdrflags     _ex_un._ex_header.flags
 125 #define ex_contaddrs    _ex_un._ex_header.contaddrs
 126 #define ex_hostuuid     _ex_un._ex_addrentry.hostuuid
 127 #define ex_addrs        _ex_un._ex_addrentry.addrs
 128 #define ex_uniquifier   _ex_un._ex_addrentry.uniquifier
 129 #define ex_srvflags     _ex_un._ex_addrentry.flags
 130
 131 #define VLog(level, str)   ViceLog(level, str)
 132
 133 #endif /* _VLSERVER_ */