[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.38 by root, Wed Nov 7 00:21:06 2001 UTC vs.
Revision 1.54 by pcg, Sat Mar 13 06:45:04 2004 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
		4
		5	#include "patchlevel.h"
		6
		7	#if PATCHLEVEL < 6
		8	# ifndef PL_ppaddr
		9	# define PL_ppaddr ppaddr
		10	# endif
		11	# ifndef call_sv
		12	# define call_sv perl_call_sv
		13	# endif
		14	# ifndef get_sv
		15	# define get_sv perl_get_sv
		16	# endif
		17	# ifndef get_cv
		18	# define get_cv perl_get_cv
		19	# endif
		20	# ifndef IS_PADGV
		21	# define IS_PADGV(v) 0
		22	# endif
		23	# ifndef IS_PADCONST
		24	# define IS_PADCONST(v) 0
		25	# endif
		26	#endif
4		27
5	#include "libcoro/coro.c"	28	#include "libcoro/coro.c"
6		29
7	#include <signal.h>	30	#include <signal.h>
8		31
16	# undef HAVE_MMAP	39	# undef HAVE_MMAP
17	# endif	40	# endif
18	# endif	41	# endif
19	#endif	42	#endif
20		43
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	44	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	45	#define UCORO_STATE "_coro_state"
25		46
26	/* The next macro should declare a variable stacklevel that contains and approximation	47	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	48	* to the current C stack pointer. Its property is that it changes with each call
…		…
47	void *sptr;	68	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	69	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	70	} coro_stack;
50		71
51	struct coro {	72	struct coro {
		73	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		74	JMPENV start_env;
		75
52	/* the optional C context */	76	/* the optional C context */
53	coro_stack *stack;	77	coro_stack *stack;
54	void *cursp;	78	void *cursp;
55	int gencnt;	79	int gencnt;
56		80
57	/* optionally saved, might be zero */	81	/* optionally saved, might be zero */
58	AV *defav;	82	AV *defav;
59	SV *defsv;	83	SV *defsv;
60	SV *errsv;	84	SV *errsv;
61	/* TODO: PL_pmop might be nice && effortless to save. */
62		85
63	/* saved global state not related to stacks */	86	/* saved global state not related to stacks */
64	U8 dowarn;	87	U8 dowarn;
65	I32 in_eval;	88	I32 in_eval;
66		89
…		…
69	AV *curstack;	92	AV *curstack;
70	AV *mainstack;	93	AV *mainstack;
71	SV **stack_sp;	94	SV **stack_sp;
72	OP *op;	95	OP *op;
73	SV **curpad;	96	SV **curpad;
		97	AV *comppad;
74	SV **stack_base;	98	SV **stack_base;
75	SV **stack_max;	99	SV **stack_max;
76	SV **tmps_stack;	100	SV **tmps_stack;
77	I32 tmps_floor;	101	I32 tmps_floor;
78	I32 tmps_ix;	102	I32 tmps_ix;
…		…
102	static AV main_mainstack; / used to differentiate between $main and others */	126	static AV main_mainstack; / used to differentiate between $main and others */
103	static HV *coro_state_stash;	127	static HV *coro_state_stash;
104	static SV *ucoro_state_sv;	128	static SV *ucoro_state_sv;
105	static U32 ucoro_state_hash;	129	static U32 ucoro_state_hash;
106	static HV *padlist_cache;	130	static HV *padlist_cache;
		131	static SV coro_mortal; / will be freed after next transfer */
107		132
108	/* mostly copied from op.c:cv_clone2 */	133	/* mostly copied from op.c:cv_clone2 */
109	STATIC AV *	134	STATIC AV *
110	clone_padlist (AV *protopadlist)	135	clone_padlist (AV *protopadlist)
111	{	136	{
…		…
157	sv = (SV *) newAV ();	182	sv = (SV *) newAV ();
158	else if (*name == '%')	183	else if (*name == '%')
159	sv = (SV *) newHV ();	184	sv = (SV *) newHV ();
160	else	185	else
161	sv = NEWSV (0, 0);	186	sv = NEWSV (0, 0);
		187	#ifdef SvPADBUSY
162	if (!SvPADBUSY (sv))	188	if (!SvPADBUSY (sv))
		189	#endif
163	SvPADMY_on (sv);	190	SvPADMY_on (sv);
164	npad[ix] = sv;	191	npad[ix] = sv;
165	}	192	}
166	}	193	}
167	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	194	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
…		…
197	#endif	224	#endif
198		225
199	return newpadlist;	226	return newpadlist;
200	}	227	}
201		228
202	#ifdef MAY_FLUSH
203	STATIC void	229	STATIC void
204	free_padlist (AV *padlist)	230	free_padlist (AV *padlist)
205	{	231	{
206	/* may be during global destruction */	232	/* may be during global destruction */
207	if (SvREFCNT(padlist))	233	if (SvREFCNT (padlist))
208	{	234	{
209	I32 i = AvFILLp(padlist);	235	I32 i = AvFILLp (padlist);
210	while (i >= 0)	236	while (i >= 0)
211	{	237	{
212	SV **svp = av_fetch(padlist, i--, FALSE);	238	SV **svp = av_fetch (padlist, i--, FALSE);
213	SV sv = svp ? svp : Nullsv;
214	if (sv)	239	if (svp)
		240	{
		241	SV *sv;
		242	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
215	SvREFCNT_dec(sv);	243	SvREFCNT_dec (sv);
		244
		245	SvREFCNT_dec (*svp);
		246	}
216	}	247	}
217		248
218	SvREFCNT_dec((SV*)padlist);	249	SvREFCNT_dec ((SV*)padlist);
219	}	250	}
220	}	251	}
221	#endif	252
		253	STATIC int
		254	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		255	{
		256	AV *padlist;
		257	AV av = (AV )mg->mg_obj;
		258
		259	/* casting is fun. */
		260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		261	free_padlist (padlist);
		262	}
		263
		264	#define PERL_MAGIC_coro PERL_MAGIC_ext
		265
		266	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		267
223	/* the next two functions merely cache the padlists */	268	/* the next two functions merely cache the padlists */
224	STATIC void	269	STATIC void
225	get_padlist (CV *cv)	270	get_padlist (CV *cv)
226	{	271	{
227	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	272	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		273
229	if (he && AvFILLp ((AV )he) >= 0)	274	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	275	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	276	else
232	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	277	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
233	}	278	}
234		279
235	STATIC void	280	STATIC void
236	put_padlist (CV *cv)	281	put_padlist (CV *cv)
237	{	282	{
238	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	283	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
239		284
240	if (SvTYPE (*he) != SVt_PVAV)	285	if (!mg)
241	{	286	{
242	SvREFCNT_dec (*he);	287	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		288	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		289	mg->mg_virtual = &vtbl_coro;
243	he = (SV )newAV ();	290	mg->mg_obj = (SV *)newAV ();
244	}	291	}
245		292
246	av_push ((AV )he, (SV *)CvPADLIST (cv));	293	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
247	}	294	}
248
249	#ifdef MAY_FLUSH
250	STATIC void
251	flush_padlist_cache ()
252	{
253	HV *hv = padlist_cache;
254	padlist_cache = newHV ();
255
256	if (hv_iterinit (hv))
257	{
258	HE *he;
259	AV *padlist;
260
261	while (!!(he = hv_iternext (hv)))
262	{
263	AV av = (AV )HeVAL(he);
264
265	/* casting is fun. */
266	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
267	free_padlist (padlist);
268	}
269	}
270
271	SvREFCNT_dec (hv);
272	}
273	#endif
274		295
275	#define SB do {	296	#define SB do {
276	#define SE } while (0)	297	#define SE } while (0)
277		298
278	#define LOAD(state) load_state(aTHX_ (state));	299	#define LOAD(state) load_state(aTHX_ (state));
279	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	300	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
280		301
281	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	302	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
282		303
283	static void	304	static void
284	load_state(pTHX_ Coro__State c)	305	load_state(pTHX_ Coro__State c)
285	{	306	{
286	PL_dowarn = c->dowarn;	307	PL_dowarn = c->dowarn;
…		…
290	PL_curstack = c->curstack;	311	PL_curstack = c->curstack;
291	PL_mainstack = c->mainstack;	312	PL_mainstack = c->mainstack;
292	PL_stack_sp = c->stack_sp;	313	PL_stack_sp = c->stack_sp;
293	PL_op = c->op;	314	PL_op = c->op;
294	PL_curpad = c->curpad;	315	PL_curpad = c->curpad;
		316	PL_comppad = c->comppad;
295	PL_stack_base = c->stack_base;	317	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;	318	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;	319	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;	320	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;	321	PL_tmps_ix = c->tmps_ix;
…		…
387	PUSHs ((SV *)cv);	409	PUSHs ((SV *)cv);
388		410
389	get_padlist (cv); /* this is a monster */	411	get_padlist (cv); /* this is a monster */
390	}	412	}
391	}	413	}
		414	#ifdef CXt_FORMAT
392	else if (CxTYPE(cx) == CXt_FORMAT)	415	else if (CxTYPE(cx) == CXt_FORMAT)
393	{	416	{
394	/* I never used formats, so how should I know how these are implemented? */	417	/* I never used formats, so how should I know how these are implemented? */
395	/* my bold guess is as a simple, plain sub... */	418	/* my bold guess is as a simple, plain sub... */
396	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	419	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
397	}	420	}
		421	#endif
398	}	422	}
399		423
400	if (top_si->si_type == PERLSI_MAIN)	424	if (top_si->si_type == PERLSI_MAIN)
401	break;	425	break;
402		426
…		…
419	c->curstack = PL_curstack;	443	c->curstack = PL_curstack;
420	c->mainstack = PL_mainstack;	444	c->mainstack = PL_mainstack;
421	c->stack_sp = PL_stack_sp;	445	c->stack_sp = PL_stack_sp;
422	c->op = PL_op;	446	c->op = PL_op;
423	c->curpad = PL_curpad;	447	c->curpad = PL_curpad;
		448	c->comppad = PL_comppad;
424	c->stack_base = PL_stack_base;	449	c->stack_base = PL_stack_base;
425	c->stack_max = PL_stack_max;	450	c->stack_max = PL_stack_max;
426	c->tmps_stack = PL_tmps_stack;	451	c->tmps_stack = PL_tmps_stack;
427	c->tmps_floor = PL_tmps_floor;	452	c->tmps_floor = PL_tmps_floor;
428	c->tmps_ix = PL_tmps_ix;	453	c->tmps_ix = PL_tmps_ix;
…		…
444	}	469	}
445		470
446	/*	471	/*
447	* allocate various perl stacks. This is an exact copy	472	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	473	* of perl.c:init_stacks, except that it uses less memory
449	* on the assumption that coroutines do not usually need	474	* on the (sometimes correct) assumption that coroutines do
450	* a lot of stackspace.	475	* not usually need a lot of stackspace.
451	*/	476	*/
452	STATIC void	477	STATIC void
453	coro_init_stacks (pTHX)	478	coro_init_stacks (pTHX)
454	{	479	{
455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	480	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
…		…
468		493
469	New(54,PL_markstack,16,I32);	494	New(54,PL_markstack,16,I32);
470	PL_markstack_ptr = PL_markstack;	495	PL_markstack_ptr = PL_markstack;
471	PL_markstack_max = PL_markstack + 16;	496	PL_markstack_max = PL_markstack + 16;
472		497
		498	#ifdef SET_MARK_OFFSET
473	SET_MARK_OFFSET;	499	SET_MARK_OFFSET;
		500	#endif
474		501
475	New(54,PL_scopestack,16,I32);	502	New(54,PL_scopestack,16,I32);
476	PL_scopestack_ix = 0;	503	PL_scopestack_ix = 0;
477	PL_scopestack_max = 16;	504	PL_scopestack_max = 16;
478		505
…		…
485	PL_retstack_max = 8;	512	PL_retstack_max = 8;
486	}	513	}
487		514
488	/*	515	/*
489	* destroy the stacks, the callchain etc...	516	* destroy the stacks, the callchain etc...
490	* still there is a memleak of 128 bytes...
491	*/	517	*/
492	STATIC void	518	STATIC void
493	destroy_stacks(pTHX)	519	destroy_stacks(pTHX)
494	{	520	{
495	if (!IN_DESTRUCT)	521	if (!IN_DESTRUCT)
496	{	522	{
497	/* is this ugly, I ask? */	523	/* is this ugly, I ask? */
498	while (PL_scopestack_ix)	524	LEAVE_SCOPE (0);
499	LEAVE;
500		525
501	/* sure it is, but more important: is it correct?? :/ */	526	/* sure it is, but more important: is it correct?? :/ */
502	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
503	FREETMPS;	527	FREETMPS;
504	}	528	}
505		529
506	while (PL_curstackinfo->si_next)	530	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	531	PL_curstackinfo = PL_curstackinfo->si_next;
508		532
…		…
545	stack->usecnt = 1;	569	stack->usecnt = 1;
546	stack->gencnt = ctx->gencnt = 0;	570	stack->gencnt = ctx->gencnt = 0;
547	if (alloc)	571	if (alloc)
548	{	572	{
549	#if HAVE_MMAP	573	#if HAVE_MMAP
550	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	574	stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	575	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
552	if (stack->sptr == (void *)-1)	576	if (stack->sptr == (void *)-1)
553	#endif	577	#endif
554	{	578	{
555	/FIXME//D//* reasonable stack size! */	579	/FIXME//D//* reasonable stack size! */
556	stack->ssize = -4096 * sizeof (long);	580	stack->ssize = - (8192 * sizeof (long));
557	New (0, stack->sptr, 4096, long);	581	New (0, stack->sptr, 8192, long);
558	}	582	}
559	}	583	}
560	else	584	else
561	stack->sptr = 0;	585	stack->sptr = 0;
562		586
…		…
576	{	600	{
577	#ifdef HAVE_MMAP	601	#ifdef HAVE_MMAP
578	if (stack->ssize > 0 && stack->sptr)	602	if (stack->ssize > 0 && stack->sptr)
579	munmap (stack->sptr, stack->ssize);	603	munmap (stack->sptr, stack->ssize);
580	else	604	else
581	#else	605	#endif
582	Safefree (stack->sptr);	606	Safefree (stack->sptr);
583	#endif	607
584	Safefree (stack);	608	Safefree (stack);
585	}	609	}
586	else if (ctx->gencnt == stack->gencnt)	610	else if (ctx->gencnt == stack->gencnt)
587	--stack->usecnt;	611	--stack->usecnt;
588	}	612	}
…		…
594	/*	618	/*
595	* emulate part of the perl startup here.	619	* emulate part of the perl startup here.
596	*/	620	*/
597	dSP;	621	dSP;
598	Coro__State ctx = (Coro__State)arg;	622	Coro__State ctx = (Coro__State)arg;
599	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	623	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
600		624
601	coro_init_stacks (aTHX);	625	coro_init_stacks (aTHX);
602	/PL_curcop = 0;/	626	/PL_curcop = 0;/
603	/PL_in_eval = PL_in_eval;/ /* inherit */	627	/PL_in_eval = PL_in_eval;/ /* inherit */
604	SvREFCNT_dec (GvAV (PL_defgv));	628	SvREFCNT_dec (GvAV (PL_defgv));
605	GvAV (PL_defgv) = ctx->args;	629	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
606		630
607	SPAGAIN;	631	SPAGAIN;
608		632
609	if (ctx->stack)	633	if (ctx->stack)
610	{	634	{
…		…
637	* that doesn't matter, though, since it is only	661	* that doesn't matter, though, since it is only
638	* pp_nextstate and we never return...	662	* pp_nextstate and we never return...
639	* ah yes, and I don't care anyways ;)	663	* ah yes, and I don't care anyways ;)
640	*/	664	*/
641	PUTBACK;	665	PUTBACK;
642	PL_op = pp_entersub();	666	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
643	SPAGAIN;	667	SPAGAIN;
644		668
645	ENTER; /* necessary e.g. for dounwind */	669	ENTER; /* necessary e.g. for dounwind */
646	}	670	}
647	}	671	}
…		…
653	* this is a _very_ stripped down perl interpreter ;)	677	* this is a _very_ stripped down perl interpreter ;)
654	*/	678	*/
655	Coro__State ctx = (Coro__State)arg;	679	Coro__State ctx = (Coro__State)arg;
656	JMPENV coro_start_env;	680	JMPENV coro_start_env;
657		681
658	/* same as JMPENV_BOOTSTRAP */
659	Zero(&coro_start_env, 1, JMPENV);
660	coro_start_env.je_ret = -1;
661	coro_start_env.je_mustcatch = TRUE;
662	PL_top_env = &coro_start_env;	682	PL_top_env = &ctx->start_env;
663		683
664	ctx->cursp = 0;	684	ctx->cursp = 0;
665	PL_op = PL_op->op_next;	685	PL_op = PL_op->op_next;
666	CALLRUNOPS(aTHX);	686	CALLRUNOPS(aTHX);
667		687
…		…
725	if (!prev->stack)	745	if (!prev->stack)
726	allocate_stack (prev, 0);	746	allocate_stack (prev, 0);
727		747
728	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	748	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
729	{	749	{
		750	PL_top_env = &next->start_env;
		751
730	setup_coro (next);	752	setup_coro (next);
731		753
732	prev->stack->refcnt++;	754	prev->stack->refcnt++;
733	prev->stack->usecnt++;	755	prev->stack->usecnt++;
734	next->stack = prev->stack;	756	next->stack = prev->stack;
735	next->gencnt = prev->gencnt;	757	next->gencnt = prev->gencnt;
736	}	758	}
737	else	759	else
738	{	760	{
		761	assert (!next->stack);
739	allocate_stack (next, 1);	762	allocate_stack (next, 1);
740	coro_create (&(next->stack->cctx),	763	coro_create (&(next->stack->cctx),
741	setup_coro, (void *)next,	764	setup_coro, (void *)next,
742	next->stack->sptr, labs (next->stack->ssize));	765	next->stack->sptr, labs (next->stack->ssize));
743	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	766	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
…		…
748	setup_coro (next);	771	setup_coro (next);
749	}	772	}
750		773
751	/*	774	/*
752	* xnext is now either prev or next, depending on wether	775	* xnext is now either prev or next, depending on wether
753	* we switched the c stack or not. that's why i use a global	776	* we switched the c stack or not. that's why I use a global
754	* variable, that should become thread-specific at one point.	777	* variable, that should become thread-specific at one point.
755	*/	778	*/
756	xnext->cursp = stacklevel;	779	xnext->cursp = stacklevel;
757	}	780	}
758	}
759		781
760	static struct coro *	782	if (coro_mortal)
761	sv_to_coro (SV arg, const char funcname, const char *varname)
762	{
763	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
764	{	783	{
765	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	784	SvREFCNT_dec (coro_mortal);
766		785	coro_mortal = 0;
767	if (!he)
768	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
769
770	arg = HeVAL(he);
771	}	786	}
772		787	}
		788
		789	#define SV_CORO(sv,func) \
		790	do { \
		791	if (SvROK (sv)) \
		792	sv = SvRV (sv); \
		793	\
		794	if (SvTYPE(sv) == SVt_PVHV) \
		795	{ \
		796	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		797	\
		798	if (!he) \
		799	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		800	\
		801	(sv) = SvRV (HeVAL(he)); \
		802	} \
		803	\
773	/* must also be changed inside Coro::Cont::yield */	804	/* must also be changed inside Coro::Cont::yield */ \
774	if (SvROK(arg) && SvOBJECT(SvRV(arg))	805	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \
775	&& SvSTASH(SvRV(arg)) == coro_state_stash)
776	return (struct coro ) SvIV((SV)SvRV(arg));
777
778	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	806	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
779	/NORETURN/	807	\
780	}	808	} while(0)
		809
		810	#define SvSTATE(sv) (struct coro *)SvIV (sv)
781		811
782	static void	812	static void
783	api_transfer(pTHX_ SV prev, SV next, int flags)	813	api_transfer(pTHX_ SV prev, SV next, int flags)
784	{	814	{
785	transfer(aTHX_	815	SV_CORO (prev, "Coro::transfer");
786	sv_to_coro (prev, "Coro::transfer", "prev"),	816	SV_CORO (next, "Coro::transfer");
787	sv_to_coro (next, "Coro::transfer", "next"),	817
788	flags);	818	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);
789	}	819	}
790		820
791	/ Coro ******************************************************************/	821	/ Coro ******************************************************************/
792		822
793	#define PRIO_MAX 3	823	#define PRIO_MAX 3
…		…
803	static int coro_nready;	833	static int coro_nready;
804		834
805	static void	835	static void
806	coro_enq (SV *sv)	836	coro_enq (SV *sv)
807	{	837	{
808	if (SvROK (sv))	838	if (SvTYPE (sv) == SVt_PVHV)
809	{	839	{
810	SV *hv = SvRV (sv);
811	if (SvTYPE (hv) == SVt_PVHV)
812	{
813	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	840	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
814	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	841	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
815		842
816	prio = prio > PRIO_MAX ? PRIO_MAX	843	prio = prio > PRIO_MAX ? PRIO_MAX
817	: prio < PRIO_MIN ? PRIO_MIN	844	: prio < PRIO_MIN ? PRIO_MIN
818	: prio;	845	: prio;
819		846
820	av_push (coro_ready [prio - PRIO_MIN], sv);	847	av_push (coro_ready [prio - PRIO_MIN], sv);
821	coro_nready++;	848	coro_nready++;
822		849
823	return;	850	return;
824	}
825	}	851	}
826		852
827	croak ("Coro::ready tried to enqueue something that is not a coroutine");	853	croak ("Coro::ready tried to enqueue something that is not a coroutine");
828	}	854	}
829		855
…		…
847	}	873	}
848		874
849	static void	875	static void
850	api_ready (SV *coro)	876	api_ready (SV *coro)
851	{	877	{
		878	if (SvROK (coro))
		879	coro = SvRV (coro);
		880
852	coro_enq (SvREFCNT_inc (coro));	881	coro_enq (SvREFCNT_inc (coro));
853	}	882	}
854		883
855	static void	884	static void
856	api_schedule (int cede)	885	api_schedule (void)
857	{	886	{
858	SV prev, next;	887	SV prev, next;
859		888
860	prev = GvSV (coro_current);	889	prev = SvRV (GvSV (coro_current));
861
862	if (cede)
863	coro_enq (SvREFCNT_inc (prev));
864
865	next = coro_deq (PRIO_MIN);	890	next = coro_deq (PRIO_MIN);
866		891
867	if (!next)	892	if (!next)
868	next = SvREFCNT_inc (GvSV (coro_idle));	893	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
869		894
870	GvSV (coro_current) = SvREFCNT_inc (next);	895	/* free this only after the transfer */
871	transfer (aTHX_	896	coro_mortal = prev;
872	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	897	SV_CORO (prev, "Coro::schedule");
873	sv_to_coro (next, "Coro::schedule", "next coroutine"),	898
		899	SvRV (GvSV (coro_current)) = next;
		900
		901	SV_CORO (next, "Coro::schedule");
		902
		903	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
874	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	904	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
875	SvREFCNT_dec (next);	905	}
876	SvREFCNT_dec (prev);	906
		907	static void
		908	api_cede (void)
		909	{
		910	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
		911
		912	api_schedule ();
877	}	913	}
878		914
879	MODULE = Coro::State PACKAGE = Coro::State	915	MODULE = Coro::State PACKAGE = Coro::State
880		916
881	PROTOTYPES: ENABLE	917	PROTOTYPES: ENABLE
…		…
908	Coro__State coro;	944	Coro__State coro;
909		945
910	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	946	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
911	croak ("Coro::State::_newprocess expects an arrayref");	947	croak ("Coro::State::_newprocess expects an arrayref");
912		948
913	New (0, coro, 1, struct coro);	949	Newz (0, coro, 1, struct coro);
914		950
915	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	951	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
916	coro->mainstack = 0; /* actual work is done inside transfer */	952	coro->mainstack = 0; /* actual work is done inside transfer */
917	coro->stack = 0;	953	coro->stack = 0;
918		954
		955	/* same as JMPENV_BOOTSTRAP */
		956	/* we might be able to recycle start_env, but safe is safe */
		957	//Zero(&coro->start_env, 1, JMPENV);
		958	coro->start_env.je_ret = -1;
		959	coro->start_env.je_mustcatch = TRUE;
		960
919	RETVAL = coro;	961	RETVAL = coro;
920	OUTPUT:	962	OUTPUT:
921	RETVAL	963	RETVAL
922		964
923	void	965	void
924	transfer(prev, next, flags)	966	transfer(prev, next, flags)
925	Coro::State_or_hashref prev	967	SV *prev
926	Coro::State_or_hashref next	968	SV *next
927	int flags	969	int flags
928	PROTOTYPE: @	970	PROTOTYPE: @
929	CODE:	971	CODE:
930	PUTBACK;	972	PUTBACK;
		973	SV_CORO (next, "Coro::transfer");
		974	SV_CORO (prev, "Coro::transfer");
931	transfer (aTHX_ prev, next, flags);	975	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
932	SPAGAIN;	976	SPAGAIN;
933		977
934	void	978	void
935	DESTROY(coro)	979	DESTROY(coro)
936	Coro::State coro	980	Coro::State coro
…		…
952		996
953	coro->mainstack = 0;	997	coro->mainstack = 0;
954	}	998	}
955		999
956	deallocate_stack (coro);	1000	deallocate_stack (coro);
957		1001	SvREFCNT_dec (coro->args);
958	Safefree (coro);	1002	Safefree (coro);
959
960	void
961	flush()
962	CODE:
963	#ifdef MAY_FLUSH
964	flush_padlist_cache ();
965	#endif
966		1003
967	void	1004	void
968	_exit(code)	1005	_exit(code)
969	int code	1006	int code
970	PROTOTYPE: $	1007	PROTOTYPE: $
971	CODE:	1008	CODE:
972	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
973	_exit (code);	1009	_exit (code);
974	#else
975	signal (SIGTERM, SIG_DFL);
976	raise (SIGTERM);
977	exit (code);
978	#endif
979		1010
980	MODULE = Coro::State PACKAGE = Coro::Cont	1011	MODULE = Coro::State PACKAGE = Coro::Cont
981		1012
982	# this is slightly dirty (should expose a c-level api)	1013	# this is slightly dirty (should expose a c-level api)
983		1014
…		…
989	SV *sv;	1020	SV *sv;
990	AV *defav = GvAV (PL_defgv);	1021	AV *defav = GvAV (PL_defgv);
991	struct coro prev, next;	1022	struct coro prev, next;
992		1023
993	if (!returnstk)	1024	if (!returnstk)
994	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1025	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
995		1026
996	/* set up @_ -- ugly */	1027	/* set up @_ -- ugly */
997	av_clear (defav);	1028	av_clear (defav);
998	av_fill (defav, items - 1);	1029	av_fill (defav, items - 1);
999	while (items--)	1030	while (items--)
…		…
1031		1062
1032	{	1063	{
1033	SV *sv = perl_get_sv("Coro::API", 1);	1064	SV *sv = perl_get_sv("Coro::API", 1);
1034		1065
1035	coroapi.schedule = api_schedule;	1066	coroapi.schedule = api_schedule;
		1067	coroapi.cede = api_cede;
1036	coroapi.ready = api_ready;	1068	coroapi.ready = api_ready;
1037	coroapi.nready = &coro_nready;	1069	coroapi.nready = &coro_nready;
1038	coroapi.current = coro_current;	1070	coroapi.current = coro_current;
1039		1071
1040	GCoroAPI = &coroapi;	1072	GCoroAPI = &coroapi;
1041	sv_setiv(sv, (IV)&coroapi);	1073	sv_setiv(sv, (IV)&coroapi);
1042	SvREADONLY_on(sv);	1074	SvREADONLY_on(sv);
1043	}	1075	}
1044	}	1076	}
		1077
		1078	#if !PERL_MICRO
1045		1079
1046	void	1080	void
1047	ready(self)	1081	ready(self)
1048	SV * self	1082	SV * self
1049	PROTOTYPE: $	1083	PROTOTYPE: $
1050	CODE:	1084	CODE:
1051	api_ready (self);	1085	api_ready (self);
		1086
		1087	#endif
1052		1088
1053	int	1089	int
1054	nready(...)	1090	nready(...)
1055	PROTOTYPE:	1091	PROTOTYPE:
1056	CODE:	1092	CODE:
…		…
1059	RETVAL	1095	RETVAL
1060		1096
1061	void	1097	void
1062	schedule(...)	1098	schedule(...)
1063	PROTOTYPE:	1099	PROTOTYPE:
1064	ALIAS:
1065	cede = 1
1066	CODE:	1100	CODE:
1067	api_schedule (ix);	1101	api_schedule ();
1068		1102
		1103	void
		1104	cede(...)
		1105	PROTOTYPE:
		1106	CODE:
		1107	api_cede ();
		1108

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.38 by root, Wed Nov 7 00:21:06 2001 UTC vs. Revision 1.54 by pcg, Sat Mar 13 06:45:04 2004 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.38 by root, Wed Nov 7 00:21:06 2001 UTC vs.
Revision 1.54 by pcg, Sat Mar 13 06:45:04 2004 UTC