/* db.h */
/* $Id: db.h,v 1.4 2005/06/23 02:59:58 murrayma Exp $ */
#include "copyright.h"
#ifndef __DB_H
#define __DB_H
#include "config.h"
#include "mudconf.h"
#include <sys/file.h>
#define ITER_PARENTS(t,p,l) for ((l)=0, (p)=(t); \
(Good_obj(p) && \
((l) < mudconf.parent_nest_lim)); \
(p)=Parent(p), (l)++)
#define Hasprivs(x) (Royalty(x) || Wizard(x))
int get_atr();
typedef struct attr ATTR;
struct attr {
const char *name; /* This has to be first. braindeath. */
int number; /* attr number */
int flags;
int (*check)(int, dbref, dbref, int, char *);
};
#ifdef MEMORY_BASED
typedef struct atrlist ATRLIST;
struct atrlist {
char *data; /* Attribute text. */
int size; /* Length of attribute */
int number; /* Attribute number. */
};
#endif
typedef struct stack STACK;
struct stack {
char *data;
STACK *next;
};
extern ATTR *atr_num(int anum);
extern ATTR *atr_str(char *s);
extern ATTR attr[];
extern ATTR **anum_table;
#define anum_get(x) (anum_table[(x)])
#define anum_set(x,v) anum_table[(x)] = v
extern void anum_extend(int);
#define ATR_INFO_CHAR '\1' /* Leadin char for attr control data */
/* Boolean expressions, for locks */
#define BOOLEXP_AND 0
#define BOOLEXP_OR 1
#define BOOLEXP_NOT 2
#define BOOLEXP_CONST 3
#define BOOLEXP_ATR 4
#define BOOLEXP_INDIR 5
#define BOOLEXP_CARRY 6
#define BOOLEXP_IS 7
#define BOOLEXP_OWNER 8
#define BOOLEXP_EVAL 9
typedef struct boolexp BOOLEXP;
struct boolexp {
boolexp_type type;
struct boolexp *sub1;
struct boolexp *sub2;
dbref thing; /* thing refers to an object */
};
#define TRUE_BOOLEXP ((BOOLEXP *) 0)
/* Database format information */
#define F_UNKNOWN 0 /* Unknown database format */
#define F_MUSH 1 /* MUSH format (many variants) */
#define F_MUSE 2 /* MUSE format */
#define F_MUD 3 /* Old TinyMUD format */
#define F_MUCK 4 /* TinyMUCK format */
#define F_MUX 5 /* TinyMUX format */
#define V_MASK 0x000000ff /* Database version */
#define V_ZONE 0x00000100 /* ZONE/DOMAIN field */
#define V_LINK 0x00000200 /* LINK field (exits from objs) */
#define V_GDBM 0x00000400 /* attrs are in a gdbm db, not here */
#define V_ATRNAME 0x00000800 /* NAME is an attr, not in the hdr */
#define V_ATRKEY 0x00001000 /* KEY is an attr, not in the hdr */
#define V_PERNKEY 0x00001000 /* PERN: Extra locks in object hdr */
#define V_PARENT 0x00002000 /* db has the PARENT field */
#define V_COMM 0x00004000 /* PERN: Comm status in header */
#define V_ATRMONEY 0x00008000 /* Money is kept in an attribute */
#define V_XFLAGS 0x00010000 /* An extra word of flags */
#define V_POWERS 0x00020000 /* Powers? */
#define V_3FLAGS 0x00040000 /* Adding a 3rd flag word */
#define V_QUOTED 0x00080000 /* Quoted strings, ala PennMUSH */
/* Some defines for DarkZone's flavor of PennMUSH */
#define DB_CHANNELS 0x2 /* Channel system */
#define DB_SLOCK 0x4 /* Slock */
#define DB_MC 0x8 /* Master Create Time + modifed */
#define DB_MPAR 0x10 /* Multiple Parent Code */
#define DB_CLASS 0x20 /* Class System */
#define DB_RANK 0x40 /* Rank */
#define DB_DROPLOCK 0x80 /* Drop/TelOut Lock */
#define DB_GIVELOCK 0x100 /* Give/TelIn Lock */
#define DB_GETLOCK 0x200 /* Get Lock */
#define DB_THREEPOW 0x400 /* Powers have Three Long Words */
/* special dbref's */
#define NOTHING (-1) /* null dbref */
#define AMBIGUOUS (-2) /* multiple possibilities, for matchers */
#define HOME (-3) /* virtual room, represents mover's home */
#define NOPERM (-4) /* Error status, no permission */
#define NOSLAVE (-5) /* Don't send to slaves */
typedef struct object OBJ;
struct object {
dbref location; /* PLAYER, THING: where it is */
/* ROOM: dropto: */
/* EXIT: where it goes to */
dbref contents; /* PLAYER, THING, ROOM: head of contentslist */
/* EXIT: unused */
dbref exits; /* PLAYER, THING, ROOM: head of exitslist */
/* EXIT: where it is */
dbref next; /* PLAYER, THING: next in contentslist */
/* EXIT: next in exitslist */
/* ROOM: unused */
dbref link; /* PLAYER, THING: home location */
/* ROOM, EXIT: unused */
dbref parent; /* ALL: defaults for attrs, exits, $cmds, */
dbref owner; /* PLAYER: domain number + class + moreflags */
/* THING, ROOM, EXIT: owning player number */
dbref zone; /* Whatever the object is zoned to. */
FLAG flags; /* ALL: Flags set on the object */
FLAG flags2; /* ALL: even more flags */
FLAG flags3; /* ALL: yet _more_ flags */
POWER powers; /* ALL: Powers on object */
POWER powers2; /* ALL: even more powers */
STACK *stackhead; /* Every object has a stack. */
#ifdef MEMORY_BASED
ATRLIST *ahead; /* The head of the attribute list. */
int at_count; /* How many attributes do we have? */
#endif
};
typedef char *NAME;
extern OBJ *db;
extern NAME *names;
#define Location(t) db[t].location
#define Zone(t) db[t].zone
#define Contents(t) db[t].contents
#define Exits(t) db[t].exits
#define Next(t) db[t].next
#define Link(t) db[t].link
#define Owner(t) db[t].owner
#define Parent(t) db[t].parent
#define Flags(t) db[t].flags
#define Flags2(t) db[t].flags2
#define Flags3(t) db[t].flags3
#define Powers(t) db[t].powers
#define Powers2(t) db[t].powers2
#define Stack(t) db[t].stackhead
#define Home(t) Link(t)
#define Dropto(t) Location(t)
#ifndef MEMORY_BASED
#define i_Name(t) names[t] = NULL; \
if (mudconf.cache_names) purenames[t] = NULL;
#else
#define i_Name(t) if (mudconf.cache_names) purenames[t] = NULL;
#endif
#define s_Location(t,n) db[t].location = (n)
#define s_Zone(t,n) db[t].zone = (n)
#define s_Contents(t,n) db[t].contents = (n)
#define s_Exits(t,n) db[t].exits = (n)
#define s_Next(t,n) db[t].next = (n)
#define s_Link(t,n) db[t].link = (n)
#define s_Owner(t,n) db[t].owner = (n)
#define s_Parent(t,n) db[t].parent = (n)
#define s_Flags(t,n) db[t].flags = (n)
#define s_Flags2(t,n) db[t].flags2 = (n)
#define s_Flags3(t,n) db[t].flags3 = (n)
#define s_Powers(t,n) db[t].powers = (n)
#define s_Powers2(t,n) db[t].powers2 = (n)
#define s_Stack(t,n) db[t].stackhead = (n)
#define s_Home(t,n) s_Link(t,n)
#define s_Dropto(t,n) s_Location(t,n)
extern int Pennies(dbref);
extern void s_Pennies(dbref, int);
extern dbref getref(FILE *);
extern void putref(FILE *, dbref);
extern BOOLEXP *dup_bool(BOOLEXP *);
extern void free_boolexp(BOOLEXP *);
extern dbref parse_dbref(const char *);
extern int mkattr(char *);
extern void al_add(dbref, int);
extern void al_delete(dbref, int);
extern void al_destroy(dbref);
extern void al_store(void);
extern void db_grow(dbref);
extern void db_free(void);
extern void db_make_minimal(void);
extern dbref db_read(FILE *, int *, int *, int *);
extern dbref db_write(FILE *, int, int);
extern void destroy_thing(dbref);
extern void destroy_exit(dbref);
extern void load_restart_db(void);
extern void dump_database_internal(int);
#define DOLIST(thing,list) \
for ((thing)=(list); \
((thing)!=NOTHING) && (Next(thing)!=(thing)); \
(thing)=Next(thing))
#define SAFE_DOLIST(thing,next,list) \
for ((thing)=(list),(next)=((thing)==NOTHING ? NOTHING: Next(thing)); \
(thing)!=NOTHING && (Next(thing)!=(thing)); \
(thing)=(next), (next)=Next(next))
#define DO_WHOLE_DB(thing) \
for ((thing)=0; (thing)<mudstate.db_top; (thing)++)
#define Dropper(thing) (Connected(Owner(thing)) && Hearer(thing))
#define DUMP_NORMAL 0
#define DUMP_CRASHED 1
#define DUMP_RESTART 2
#define DUMP_KILLED 4
#endif /* __DB_H */