[perl5.git] / perlvars.h

/* This file describes the "global" variables used by perl  */
/* This used to be in perl.h directly but we want to        */
/* abstract out which are per-thread per-interpreter really */
/* global and how initialized into one file                 */

/****************/
/* Truly global */
/****************/

/* global state */
PERLVAR(Gcurinterp,	PerlInterpreter *)		/* currently running interpreter */
#ifdef USE_THREADS
PERLVAR(Gthr_key,	perl_key)		/* For per-thread struct perl_thread* */
PERLVAR(Gsv_mutex,	perl_mutex)		/* Mutex for allocating SVs in sv.c */
PERLVAR(Gmalloc_mutex,	perl_mutex)		/* Mutex for malloc */
PERLVAR(Geval_mutex,	perl_mutex)		/* Mutex for doeval */
PERLVAR(Geval_cond,	perl_cond)		/* Condition variable for doeval */
PERLVAR(Geval_owner,	struct perl_thread *)		/* Owner thread for doeval */
PERLVAR(Gnthreads,	int)		/* Number of threads currently */
PERLVAR(Gthreads_mutex,	perl_mutex)		/* Mutex for nthreads and thread list */
PERLVAR(Gnthreads_cond,	perl_cond)		/* Condition variable for nthreads */
PERLVAR(Gsvref_mutex,	perl_mutex)		/* Mutex for SvREFCNT_{inc,dec} */
PERLVARI(Gthreadsv_names,	char *,	THREADSV_NAMES)	
#ifdef FAKE_THREADS
PERLVAR(Gcurthr,	struct perl_thread *)	/* Currently executing (fake) thread */
#endif
#endif /* USE_THREADS */

PERLVAR(Guid,	int)		/* current real user id */
PERLVAR(Geuid,	int)		/* current effective user id */
PERLVAR(Ggid,	int)		/* current real group id */
PERLVAR(Gegid,	int)		/* current effective group id */
PERLVAR(Gnomemok,	bool)		/* let malloc context handle nomem */
PERLVAR(Gan,	U32)		/* malloc sequence number */
PERLVAR(Gcop_seqmax,	U32)		/* statement sequence number */
PERLVAR(Gop_seqmax,	U16)		/* op sequence number */
PERLVAR(Gevalseq,	U32)		/* eval sequence number */
PERLVAR(Gsub_generation,	U32)		/* inc to force methods to be looked up again */
PERLVAR(Gorigenviron,	char **)		
PERLVAR(Gorigalen,	U32)		
PERLVAR(Gpidstatus,	HV *)		/* pid-to-status mappings for waitpid */
PERLVAR(Gprofiledata,	U32 *)		
PERLVARI(Gmaxo,	int,	MAXO)	/* Number of ops */
PERLVAR(Gosname,	char *)		/* operating system */
PERLVARI(Gsh_path,	char *,	SH_PATH)	/* full path of shell */
PERLVAR(Gsighandlerp,	Sighandler_t)		

PERLVAR(Gxiv_arenaroot,	XPV*)		/* list of allocated xiv areas */
PERLVAR(Gxiv_root,	IV **)		/* free xiv list--shared by interpreters */
PERLVAR(Gxnv_root,	double *)		/* free xnv list--shared by interpreters */
PERLVAR(Gxrv_root,	XRV *)		/* free xrv list--shared by interpreters */
PERLVAR(Gxpv_root,	XPV *)		/* free xpv list--shared by interpreters */
PERLVAR(Ghe_root,	HE *)		/* free he list--shared by interpreters */
PERLVAR(Gnice_chunk,	char *)		/* a nice chunk of memory to reuse */
PERLVAR(Gnice_chunk_size,	U32)		/* how nice the chunk of memory is */

PERLVARI(Grunops,	runops_proc_t *,	RUNOPS_DEFAULT)	

PERLVAR(Gtokenbuf[256],	char)		
PERLVAR(Gna,	STRLEN)		/* for use in SvPV when length is Not Applicable */

PERLVAR(Gsv_undef,	SV)		
PERLVAR(Gsv_no,	SV)		
PERLVAR(Gsv_yes,	SV)		
#ifdef CSH
PERLVARI(Gcshname,	char *,	CSH)	
PERLVAR(Gcshlen,	I32)		
#endif

PERLVAR(Glex_state,	U32)		/* next token is determined */
PERLVAR(Glex_defer,	U32)		/* state after determined token */
PERLVAR(Glex_expect,	expectation)		/* expect after determined token */
PERLVAR(Glex_brackets,	I32)		/* bracket count */
PERLVAR(Glex_formbrack,	I32)		/* bracket count at outer format level */
PERLVAR(Glex_fakebrack,	I32)		/* outer bracket is mere delimiter */
PERLVAR(Glex_casemods,	I32)		/* casemod count */
PERLVAR(Glex_dojoin,	I32)		/* doing an array interpolation */
PERLVAR(Glex_starts,	I32)		/* how many interps done on level */
PERLVAR(Glex_stuff,	SV *)		/* runtime pattern from m// or s/// */
PERLVAR(Glex_repl,	SV *)		/* runtime replacement from s/// */
PERLVAR(Glex_op,	OP *)		/* extra info to pass back on op */
PERLVAR(Glex_inpat,	OP *)		/* in pattern $) and $| are special */
PERLVAR(Glex_inwhat,	I32)		/* what kind of quoting are we in */
PERLVAR(Glex_brackstack,	char *)		/* what kind of brackets to pop */
PERLVAR(Glex_casestack,	char *)		/* what kind of case mods in effect */

/* What we know when we're in LEX_KNOWNEXT state. */
PERLVAR(Gnextval[5],	YYSTYPE)		/* value of next token, if any */
PERLVAR(Gnexttype[5],	I32)		/* type of next token */
PERLVAR(Gnexttoke,	I32)		

PERLVARI(Grsfp,	PerlIO * VOL,	Nullfp)	
PERLVAR(Glinestr,	SV *)		
PERLVAR(Gbufptr,	char *)		
PERLVAR(Goldbufptr,	char *)		
PERLVAR(Goldoldbufptr,	char *)		
PERLVAR(Gbufend,	char *)		
PERLVARI(Gexpect,	expectation,	XSTATE)	/* how to interpret ambiguous tokens */
PERLVAR(Grsfp_filters,	AV *)		

PERLVAR(Gmulti_start,	I32)		/* 1st line of multi-line string */
PERLVAR(Gmulti_end,	I32)		/* last line of multi-line string */
PERLVAR(Gmulti_open,	I32)		/* delimiter of said string */
PERLVAR(Gmulti_close,	I32)		/* delimiter of said string */

PERLVAR(Gscrgv,	GV *)		
PERLVAR(Gerror_count,	I32)		/* how many errors so far, max 10 */
PERLVAR(Gsubline,	I32)		/* line this subroutine began on */
PERLVAR(Gsubname,	SV *)		/* name of current subroutine */

PERLVAR(Gcompcv,	CV *)		/* currently compiling subroutine */
PERLVAR(Gcomppad,	AV *)		/* storage for lexically scoped temporaries */
PERLVAR(Gcomppad_name,	AV *)		/* variable names for "my" variables */
PERLVAR(Gcomppad_name_fill,	I32)		/* last "introduced" variable offset */
PERLVAR(Gcomppad_name_floor,	I32)		/* start of vars in innermost block */
PERLVAR(Gmin_intro_pending,	I32)		/* start of vars to introduce */
PERLVAR(Gmax_intro_pending,	I32)		/* end of vars to introduce */
PERLVAR(Gpadix,	I32)		/* max used index in current "register" pad */
PERLVAR(Gpadix_floor,	I32)		/* how low may inner block reset padix */
PERLVAR(Gpad_reset_pending,	I32)		/* reset pad on next attempted alloc */
PERLVAR(Gcompiling,	COP)		

PERLVAR(Gthisexpr,	I32)		/* name id for nothing_in_common() */
PERLVAR(Glast_uni,	char *)		/* position of last named-unary operator */
PERLVAR(Glast_lop,	char *)		/* position of last list operator */
PERLVAR(Glast_lop_op,	OPCODE)		/* last list operator */
PERLVAR(Gin_my,	bool)		/* we're compiling a "my" declaration */
PERLVAR(Gin_my_stash,	HV *)		/* declared class of this "my" declaration */
#ifdef FCRYPT
PERLVAR(Gcryptseen,	I32)		/* has fast crypt() been initialized? */
#endif

PERLVAR(Ghints,	U32)		/* various compilation flags */

PERLVAR(Gdo_undump,	bool)		/* -u or dump seen? */
PERLVAR(Gdebug,	VOL U32)		


#ifdef OVERLOAD

PERLVAR(Gamagic_generation,	long)		

#endif

#ifdef USE_LOCALE_COLLATE
PERLVAR(Gcollation_ix,	U32)		/* Collation generation index */
PERLVAR(Gcollation_name,	char *)		/* Name of current collation */
PERLVARI(Gcollation_standard,	bool,	TRUE)	/* Assume simple collation */
PERLVAR(Gcollxfrm_base,	Size_t)		/* Basic overhead in *xfrm() */
PERLVARI(Gcollxfrm_mult,	Size_t,	2)	/* Expansion factor in *xfrm() */
#endif /* USE_LOCALE_COLLATE */

#ifdef USE_LOCALE_NUMERIC

PERLVAR(Gnumeric_name,	char *)		/* Name of current numeric locale */
PERLVARI(Gnumeric_standard,	bool,	TRUE)	/* Assume simple numerics */
PERLVARI(Gnumeric_local,	bool,	TRUE)	/* Assume local numerics */

#endif /* !USE_LOCALE_NUMERIC */

/* constants (these are not literals to facilitate pointer comparisons) */
PERLVARIC(GYes,		char *, "1")
PERLVARIC(GNo,		char *, "")
PERLVARIC(Ghexdigit,	char *, "0123456789abcdef0123456789ABCDEFx")
PERLVARIC(Gpatleave,	char *, "\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}")
Commit	Line	Data
49f531da NIS	1	/* This file describes the "global" variables used by perl */
	2	/* This used to be in perl.h directly but we want to */
	3	/* abstract out which are per-thread per-interpreter really */
	4	/* global and how initialized into one file */
	5
	6	/****************/
	7	/* Truly global */
	8	/****************/
	9
	10	/* global state */
22239a37	11	PERLVAR(Gcurinterp, PerlInterpreter ) / currently running interpreter */
49f531da	12	#ifdef USE_THREADS
22239a37 NIS	13	PERLVAR(Gthr_key, perl_key) /* For per-thread struct perl_thread* */
	14	PERLVAR(Gsv_mutex, perl_mutex) /* Mutex for allocating SVs in sv.c */
	15	PERLVAR(Gmalloc_mutex, perl_mutex) /* Mutex for malloc */
	16	PERLVAR(Geval_mutex, perl_mutex) /* Mutex for doeval */
	17	PERLVAR(Geval_cond, perl_cond) /* Condition variable for doeval */
	18	PERLVAR(Geval_owner, struct perl_thread ) / Owner thread for doeval */
	19	PERLVAR(Gnthreads, int) /* Number of threads currently */
	20	PERLVAR(Gthreads_mutex, perl_mutex) /* Mutex for nthreads and thread list */
	21	PERLVAR(Gnthreads_cond, perl_cond) /* Condition variable for nthreads */
dce16143	22	PERLVAR(Gsvref_mutex, perl_mutex) /* Mutex for SvREFCNT_{inc,dec} */
22239a37	23	PERLVARI(Gthreadsv_names, char *, THREADSV_NAMES)
49f531da	24	#ifdef FAKE_THREADS
22239a37	25	PERLVAR(Gcurthr, struct perl_thread ) / Currently executing (fake) thread */
49f531da NIS	26	#endif
	27	#endif /* USE_THREADS */
	28
22239a37 NIS	29	PERLVAR(Guid, int) /* current real user id */
	30	PERLVAR(Geuid, int) /* current effective user id */
	31	PERLVAR(Ggid, int) /* current real group id */
	32	PERLVAR(Gegid, int) /* current effective group id */
	33	PERLVAR(Gnomemok, bool) /* let malloc context handle nomem */
	34	PERLVAR(Gan, U32) /* malloc sequence number */
	35	PERLVAR(Gcop_seqmax, U32) /* statement sequence number */
	36	PERLVAR(Gop_seqmax, U16) /* op sequence number */
	37	PERLVAR(Gevalseq, U32) /* eval sequence number */
	38	PERLVAR(Gsub_generation, U32) /* inc to force methods to be looked up again */
	39	PERLVAR(Gorigenviron, char **)
	40	PERLVAR(Gorigalen, U32)
	41	PERLVAR(Gpidstatus, HV ) / pid-to-status mappings for waitpid */
	42	PERLVAR(Gprofiledata, U32 *)
	43	PERLVARI(Gmaxo, int, MAXO) /* Number of ops */
	44	PERLVAR(Gosname, char ) / operating system */
	45	PERLVARI(Gsh_path, char , SH_PATH) / full path of shell */
	46	PERLVAR(Gsighandlerp, Sighandler_t)
	47
	48	PERLVAR(Gxiv_arenaroot, XPV) / list of allocated xiv areas */
	49	PERLVAR(Gxiv_root, IV *) / free xiv list--shared by interpreters */
	50	PERLVAR(Gxnv_root, double ) / free xnv list--shared by interpreters */
	51	PERLVAR(Gxrv_root, XRV ) / free xrv list--shared by interpreters */
	52	PERLVAR(Gxpv_root, XPV ) / free xpv list--shared by interpreters */
	53	PERLVAR(Ghe_root, HE ) / free he list--shared by interpreters */
	54	PERLVAR(Gnice_chunk, char ) / a nice chunk of memory to reuse */
	55	PERLVAR(Gnice_chunk_size, U32) /* how nice the chunk of memory is */
	56
	57	PERLVARI(Grunops, runops_proc_t *, RUNOPS_DEFAULT)
	58
	59	PERLVAR(Gtokenbuf[256], char)
	60	PERLVAR(Gna, STRLEN) /* for use in SvPV when length is Not Applicable */
	61
	62	PERLVAR(Gsv_undef, SV)
	63	PERLVAR(Gsv_no, SV)
	64	PERLVAR(Gsv_yes, SV)
49f531da	65	#ifdef CSH
22239a37 NIS	66	PERLVARI(Gcshname, char *, CSH)
22239a37 NIS	67	PERLVAR(Gcshlen, I32)
49f531da NIS	68	#endif
49f531da NIS	69
22239a37 NIS	70	PERLVAR(Glex_state, U32) /* next token is determined */
	71	PERLVAR(Glex_defer, U32) /* state after determined token */
	72	PERLVAR(Glex_expect, expectation) /* expect after determined token */
	73	PERLVAR(Glex_brackets, I32) /* bracket count */
	74	PERLVAR(Glex_formbrack, I32) /* bracket count at outer format level */
	75	PERLVAR(Glex_fakebrack, I32) /* outer bracket is mere delimiter */
	76	PERLVAR(Glex_casemods, I32) /* casemod count */
	77	PERLVAR(Glex_dojoin, I32) /* doing an array interpolation */
	78	PERLVAR(Glex_starts, I32) /* how many interps done on level */
	79	PERLVAR(Glex_stuff, SV ) / runtime pattern from m// or s/// */
	80	PERLVAR(Glex_repl, SV ) / runtime replacement from s/// */
	81	PERLVAR(Glex_op, OP ) / extra info to pass back on op */
	82	PERLVAR(Glex_inpat, OP ) / in pattern $) and $\| are special */
	83	PERLVAR(Glex_inwhat, I32) /* what kind of quoting are we in */
	84	PERLVAR(Glex_brackstack, char ) / what kind of brackets to pop */
	85	PERLVAR(Glex_casestack, char ) / what kind of case mods in effect */
49f531da NIS	86
49f531da NIS	87	/* What we know when we're in LEX_KNOWNEXT state. */
22239a37 NIS	88	PERLVAR(Gnextval[5], YYSTYPE) /* value of next token, if any */
	89	PERLVAR(Gnexttype[5], I32) /* type of next token */
	90	PERLVAR(Gnexttoke, I32)
	91
	92	PERLVARI(Grsfp, PerlIO * VOL, Nullfp)
	93	PERLVAR(Glinestr, SV *)
	94	PERLVAR(Gbufptr, char *)
	95	PERLVAR(Goldbufptr, char *)
	96	PERLVAR(Goldoldbufptr, char *)
	97	PERLVAR(Gbufend, char *)
	98	PERLVARI(Gexpect, expectation, XSTATE) /* how to interpret ambiguous tokens */
	99	PERLVAR(Grsfp_filters, AV *)
	100
	101	PERLVAR(Gmulti_start, I32) /* 1st line of multi-line string */
	102	PERLVAR(Gmulti_end, I32) /* last line of multi-line string */
	103	PERLVAR(Gmulti_open, I32) /* delimiter of said string */
	104	PERLVAR(Gmulti_close, I32) /* delimiter of said string */
	105
	106	PERLVAR(Gscrgv, GV *)
	107	PERLVAR(Gerror_count, I32) /* how many errors so far, max 10 */
	108	PERLVAR(Gsubline, I32) /* line this subroutine began on */
	109	PERLVAR(Gsubname, SV ) / name of current subroutine */
	110
	111	PERLVAR(Gcompcv, CV ) / currently compiling subroutine */
	112	PERLVAR(Gcomppad, AV ) / storage for lexically scoped temporaries */
	113	PERLVAR(Gcomppad_name, AV ) / variable names for "my" variables */
	114	PERLVAR(Gcomppad_name_fill, I32) /* last "introduced" variable offset */
	115	PERLVAR(Gcomppad_name_floor, I32) /* start of vars in innermost block */
	116	PERLVAR(Gmin_intro_pending, I32) /* start of vars to introduce */
	117	PERLVAR(Gmax_intro_pending, I32) /* end of vars to introduce */
	118	PERLVAR(Gpadix, I32) /* max used index in current "register" pad */
	119	PERLVAR(Gpadix_floor, I32) /* how low may inner block reset padix */
	120	PERLVAR(Gpad_reset_pending, I32) /* reset pad on next attempted alloc */
	121	PERLVAR(Gcompiling, COP)
	122
	123	PERLVAR(Gthisexpr, I32) /* name id for nothing_in_common() */
	124	PERLVAR(Glast_uni, char ) / position of last named-unary operator */
	125	PERLVAR(Glast_lop, char ) / position of last list operator */
	126	PERLVAR(Glast_lop_op, OPCODE) /* last list operator */
	127	PERLVAR(Gin_my, bool) /* we're compiling a "my" declaration */
	128	PERLVAR(Gin_my_stash, HV ) / declared class of this "my" declaration */
49f531da	129	#ifdef FCRYPT
22239a37	130	PERLVAR(Gcryptseen, I32) /* has fast crypt() been initialized? */
49f531da NIS	131	#endif
49f531da NIS	132
22239a37	133	PERLVAR(Ghints, U32) /* various compilation flags */
49f531da	134
22239a37 NIS	135	PERLVAR(Gdo_undump, bool) /* -u or dump seen? */
22239a37 NIS	136	PERLVAR(Gdebug, VOL U32)
49f531da NIS	137
	138
	139	#ifdef OVERLOAD
	140
22239a37	141	PERLVAR(Gamagic_generation, long)
49f531da NIS	142
	143	#endif
	144
	145	#ifdef USE_LOCALE_COLLATE
22239a37 NIS	146	PERLVAR(Gcollation_ix, U32) /* Collation generation index */
	147	PERLVAR(Gcollation_name, char ) / Name of current collation */
	148	PERLVARI(Gcollation_standard, bool, TRUE) /* Assume simple collation */
	149	PERLVAR(Gcollxfrm_base, Size_t) /* Basic overhead in xfrm() /
	150	PERLVARI(Gcollxfrm_mult, Size_t, 2) /* Expansion factor in xfrm() /
49f531da NIS	151	#endif /* USE_LOCALE_COLLATE */
	152
	153	#ifdef USE_LOCALE_NUMERIC
	154
22239a37 NIS	155	PERLVAR(Gnumeric_name, char ) / Name of current numeric locale */
	156	PERLVARI(Gnumeric_standard, bool, TRUE) /* Assume simple numerics */
	157	PERLVARI(Gnumeric_local, bool, TRUE) /* Assume local numerics */
49f531da NIS	158
	159	#endif /* !USE_LOCALE_NUMERIC */
	160
3fe35a81	161	/* constants (these are not literals to facilitate pointer comparisons) */
3fe6f2dc MB	162	PERLVARIC(GYes, char *, "1")
	163	PERLVARIC(GNo, char *, "")
	164	PERLVARIC(Ghexdigit, char *, "0123456789abcdef0123456789ABCDEFx")
	165	PERLVARIC(Gpatleave, char , "\\.^$@dDwWsSbB+?\|()-nrtfeaxc0123456789[{]}")
3fe35a81	166