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78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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** $Id: lstate.h,v 1.40 2000/09/29 12:42:13 roberto Exp roberto $
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** Global State
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** See Copyright Notice in lua.h
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*/
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#ifndef lstate_h
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#define lstate_h
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#include "lobject.h"
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#include "lua.h"
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#include "luadebug.h"
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typedef TObject *StkId; /* index to stack elements */
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/*
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** marks for Reference array
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*/
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#define NONEXT -1 /* to end the free list */
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#define HOLD -2
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#define COLLECTED -3
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#define LOCK -4
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struct Ref {
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TObject o;
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int st; /* can be LOCK, HOLD, COLLECTED, or next (for free list) */
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};
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struct lua_longjmp; /* defined in ldo.c */
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struct TM; /* defined in ltm.h */
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typedef struct stringtable {
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int size;
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lint32 nuse; /* number of elements */
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TString **hash;
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} stringtable;
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struct lua_State {
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/* thread-specific state */
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StkId top; /* first free slot in the stack */
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StkId stack; /* stack base */
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StkId stack_last; /* last free slot in the stack */
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int stacksize;
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StkId Cbase; /* base for current C function */
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struct lua_longjmp *errorJmp; /* current error recover point */
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char *Mbuffer; /* global buffer */
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size_t Mbuffsize; /* size of Mbuffer */
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/* global state */
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Proto *rootproto; /* list of all prototypes */
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Closure *rootcl; /* list of all closures */
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Hash *roottable; /* list of all tables */
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stringtable strt; /* hash table for strings */
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stringtable udt; /* hash table for udata */
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Hash *gt; /* table for globals */
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struct TM *TMtable; /* table for tag methods */
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int last_tag; /* last used tag in TMtable */
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struct Ref *refArray; /* locked objects */
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int refSize; /* size of refArray */
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int refFree; /* list of free positions in refArray */
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unsigned long GCthreshold;
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unsigned long nblocks; /* number of `bytes' currently allocated */
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lua_Hook callhook;
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lua_Hook linehook;
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int allowhooks;
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};
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#endif
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