rom/filesys/SFS/FS/globals.h

   1 #ifndef GLOBALS_H_
   2 #define GLOBALS_H_
   3
   4 #include <exec/execbase.h>
   5 #include "deviceio.h"
   6 #include "bitmap.h"
   7 #include "transactions.h"
   8 #include "nodes.h"
   9 #include "fs.h"
  10
  11 struct SFSBase
  12 {
  13 #ifndef __AROS__
  14     struct ExecBase *sysBase;
  15 #endif
  16     struct DosLibrary *dosBase;
  17     struct IntuitionBase *intuitionBase;
  18     struct UtilityBase *utilityBase;
  19     struct Device *timerBase;
  20
  21     struct DosPacket *packet;
  22     struct DeviceNode *devnode;
  23     struct DeviceList *volumenode;
  24     struct MsgPort *sdlhport;       // The SFS DosList handler port.
  25
  26     struct DosEnvec *dosenvec;
  27     struct timerequest *inactivitytimer_ioreq;
  28     struct timerequest *activitytimer_ioreq;        /* How long activity can delay flushing data. */
  29     struct FileSysStartupMsg *startupmsg;
  30     struct MsgPort *msgporttimer;
  31     struct MsgPort *msgportflushtimer;
  32     struct MsgPort *msgportnotify;
  33     struct Process *mytask;
  34
  35     ULONG diskstate;     /* ID_WRITE_PROTECTED, ID_VALIDATING, ID_VALIDATED */
  36     ULONG blockpercycle;
  37     ULONG numsofterrors;
  38     ULONG inhibitnestcounter;
  39
  40     ULONG block_defragptr;
  41     ULONG *defragmentsteps;
  42     ULONG defragmentlongs;
  43
  44     ULONG blocks_reserved_start;      /* number of blocks reserved at start (=reserved) */
  45     ULONG blocks_reserved_end;        /* number of blocks reserved at end (=prealloc) */
  46
  47     ULONG blocks_bitmap;              /* number of BTMP blocks for this partition */
  48     ULONG blocks_inbitmap;            /* number of blocks a single bitmap block can contain info on */
  49     ULONG blocks_admin;               /* the size of all AdminSpaces */
  50
  51     ULONG block_root;                 /* the block offset of the root block */
  52     ULONG block_bitmapbase;           /* the block offset of the first bitmap block */
  53     ULONG block_extentbnoderoot;      /* the block offset of the root of the extent bnode tree */
  54     ULONG block_adminspace;           /* the block offset of the first adminspacecontainer block */
  55     ULONG block_objectnoderoot;       /* the block offset of the root of the objectnode tree */
  56
  57     ULONG block_rovingblockptr;       /* the roving block pointer! */
  58
  59     ULONG node_containers;            /* number of containers per ExtentIndexContainer */
  60
  61     ULONG mask_block32;               /* masks the least significant bits of a BLCKf pointer */
  62     ULONG mask_debug;
  63
  64     ULONG disktype;                   /* the type of media inserted (same as id_DiskType in InfoData
  65                                          structure) */
  66
  67     ULONG max_name_length;
  68     ULONG activity_timeout;
  69     ULONG inactivity_timeout;
  70
  71     UWORD shifts_block32;             /* shift count needed to convert a blockoffset<->32byteoffset (only used by nodes.c!) */
  72
  73     UBYTE is_casesensitive;     /* See ROOTBITS_CASESENSITIVE in blockstructure.h */
  74     UBYTE has_recycled;         /* See ROOTBITS_RECYCLED in blockstructure.h */
  75
  76     struct ExtFileLock *locklist;   /* pointer to the first lock in the list, or zero if none */
  77
  78     LONG totalbuffers;                /* Number of buffers currently in use by filesystem! */
  79     struct MinList globalhandles;
  80     struct NotifyRequest *notifyrequests;
  81
  82     BYTE activitytimeractive;
  83     BYTE pendingchanges;  /* indicates that the commit timer is active and that there are pending changes. */
  84     BYTE timerreset;
  85
  86     BOOL is_LittleEndian; /* Little endian filesystem? */
  87
  88     struct Space spacelist[SPACELIST_MAX+1];
  89     UBYTE string[260];  /* For storing BCPL string (usually path) */
  90     UBYTE string2[260]; /* For storing BCPL string (usually comment) */
  91     UBYTE pathstring[520];    /* Used by fullpath to build a full path */
  92
  93     struct fsStatistics statistics;
  94
  95     #ifdef CHECKCODE_SLOW
  96     extern struct MinList cblrulist;
  97     #endif
  98
  99     struct fsIORequest *iolist;
 100     struct IOStdReq *ioreq;           /* Used for Read/Write */
 101     struct IOStdReq *ioreq2;          /* Used for WriteProtection & DisksChange */
 102     struct IOStdReq *ioreqchangeint;  /* Used for DiskChange interrupt */
 103     struct MsgPort *msgport;
 104     BYTE deviceopened;
 105     BYTE newstyledevice;
 106     BYTE does64bit;
 107     BYTE scsidirect;
 108
 109     LONG retries;
 110
 111     struct fsIORequest fsioreq;
 112
 113     ULONG sectors_total;              /* size of the partition in sectors */
 114     UWORD sectors_block;              /* number of sectors in a block */
 115
 116     UWORD shifts_block;               /* shift count needed to convert a blockoffset<->byteoffset */
 117
 118     UWORD cmdread;
 119     UWORD cmdwrite;
 120
 121     ULONG sector_low;                 /* sector offset of our partition, needed for SCSI direct */
 122     ULONG sector_high;                /* last sector plus one of our partition */
 123
 124     ULONG blocks_total;               /* size of the partition in blocks */
 125     ULONG blocks_maxtransfer; /* max. blocks which may be transfered to the device at once (limits io_Length) */
 126
 127     UQUAD byte_low;                   /* the byte offset of our partition on the disk */
 128     UQUAD byte_high;                  /* the byte offset of the end of our partition (excluding) on the disk */
 129
 130     ULONG bytes_block;                /* size of a block in bytes */
 131     ULONG bytes_sector;               /* size of a sector in bytes */
 132
 133     ULONG mask_block;
 134     IPTR  mask_mask;       /* mask as specified by mountlist */
 135
 136     ULONG bufmemtype;   /* default value */
 137
 138     /* Internal globals */
 139
 140     struct SCSICmd scsicmd;       /* for SCSIdirect */
 141     struct SCSI10Cmd scsi10cmd;
 142
 143     struct Interrupt changeint;
 144     struct IntData
 145         {
 146             ULONG *diskchanged;
 147             struct Task *task;
 148             ULONG signal;
 149         } intdata;
 150     ULONG diskchanged;
 151
 152     #define MINSAFETYBLOCKS (16)
 153     #define MINCACHESIZE    (MINSAFETYBLOCKS*2)
 154     #define HASHSHIFT       (7)
 155     #define HASHSIZE        (1<<HASHSHIFT)
 156
 157     struct MinList cbhashlist[HASHSIZE];
 158     struct MinList cblrulist;
 159
 160     void *transactionpool;
 161     ULONG transactionpoolsize;
 162     UBYTE *compressbuffer;
 163     LONG transactionnestcount;
 164
 165     struct Operation *operationroot;
 166     struct Operation operationsentinel;
 167
 168     #define IOC_HASHSHIFT (6)
 169     #define IOC_HASHSIZE (1<<IOC_HASHSHIFT)
 170
 171     struct IOCache *ioc_hashtable[IOC_HASHSIZE];
 172     struct MinList *iocache_lruhead;
 173     struct IOCache *ioc_buffer;           /* Used for reading data when another iocache has dirty data in it. */
 174     ULONG iocache_mask;
 175     ULONG iocache_sizeinblocks;
 176     ULONG iocache_lines;
 177     WORD iocache_shift;
 178     BYTE iocache_copyback;
 179     // BYTE iocache_readonwrite=TRUE;       /* Determines whether a new line is read before writing to it. */
 180     BYTE iocache_readonwrite;       /* Determines whether a new line is read before writing to it. */
 181
 182     struct EClockVal ecv;
 183
 184     NODE templockedobjectnode;
 185
 186     UBYTE internalrename;      /* If TRUE, then the file is being renamed to recycled... */
 187
 188     #define FRAGMENTS (300)
 189
 190     ULONG fragment[FRAGMENTS];
 191     //UBYTE fragmenttype[FRAGMENTS];
 192
 193     ULONG bestkey;
 194     ULONG bestblocks;
 195     ULONG searchedblocks;
 196
 197     #define OPTBUFSIZE (131072)
 198
 199     ULONG defrag_maxfilestoscan;
 200     LONG debugreqs;
 201 };
 202
 203 #ifdef __AROS__
 204 #define globals (*(struct SFSBase **)&((struct Process *)FindTask(NULL))->pr_GlobVec)
 205 #else
 206 extern struct Globals *globals;
 207 #endif
 208
 209 void initGlobals();
 210
 211 #ifndef __AROS__
 212 #ifdef SysBase
 213 #undef SysBase
 214 #endif
 215 #endif
 216
 217 #ifdef DOSBase
 218 #undef DOSBase
 219 #endif
 220
 221 #ifdef IntuitionBase
 222 #undef IntuitionBase
 223 #endif
 224
 225 #ifdef UtilityBase
 226 #undef UtilityBase
 227 #endif
 228
 229 #ifdef TimerBase
 230 #undef TimerBase
 231 #endif
 232
 233 /* FIXME: Remove these #define xxxBase hacks
 234    Do not use this in new code !
 235 */
 236 #ifndef __AROS__
 237 #define SysBase (globals->sysBase)
 238 #endif
 239 #define DOSBase (globals->dosBase)
 240 #define IntuitionBase (globals->intuitionBase)
 241 #define UtilityBase (globals->utilityBase)
 242 #define TimerBase (globals->timerBase)
 243
 244 #endif /*GLOBALS_H_*/