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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.329 by root, Tue Nov 25 20:48:41 2008 UTC vs.
Revision 1.351 by root, Sat Jun 20 08:58:25 2009 UTC

…		…
133	#else	133	#else
134	# define dSTACKLEVEL volatile void *stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	135	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	136	#endif
137		137
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT PL_dirty
139		139
140	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	141	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	142	# define expect(expr,value) __builtin_expect ((expr),(value))
143	# define INLINE static inline	143	# define INLINE static inline
…		…
238	enum {	238	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		243	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	244	};
244		245
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	246	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	247	typedef struct
247	{	248	{
…		…
260	/* this is a structure representing a perl-level coroutine */	261	/* this is a structure representing a perl-level coroutine */
261	struct coro {	262	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	263	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	264	coro_cctx *cctx;
264		265
		266	/* ready queue */
		267	struct coro *next_ready;
		268
265	/* state data */	269	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	270	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	271	AV *mainstack;
268	perl_slots slot; / basically the saved sp */	272	perl_slots slot; / basically the saved sp */
269		273
…		…
285	/* async_pool */	289	/* async_pool */
286	SV *saved_deffh;	290	SV *saved_deffh;
287	SV *invoke_cb;	291	SV *invoke_cb;
288	AV *invoke_av;	292	AV *invoke_av;
289		293
		294	/* on_enter/on_leave */
		295	AV *on_enter;
		296	AV *on_leave;
		297
290	/* linked list */	298	/* linked list */
291	struct coro next, prev;	299	struct coro next, prev;
292	};	300	};
293		301
294	typedef struct coro *Coro__State;	302	typedef struct coro *Coro__State;
…		…
309	#define PRIO_MIN -4	317	#define PRIO_MIN -4
310		318
311	/* for Coro.pm */	319	/* for Coro.pm */
312	static SV *coro_current;	320	static SV *coro_current;
313	static SV *coro_readyhook;	321	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	322	static struct coro coro_ready [PRIO_MAX - PRIO_MIN + 1][2]; / head\|tail */
315	static CV cv_coro_run, cv_coro_terminate;	323	static CV cv_coro_run, cv_coro_terminate;
316	static struct coro *coro_first;	324	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	325	#define coro_nready coroapi.nready
318		326
319	/ lowlevel stuff ********************************************************/	327	/ lowlevel stuff ********************************************************/
…		…
352	INLINE CV *	360	INLINE CV *
353	coro_sv_2cv (pTHX_ SV *sv)	361	coro_sv_2cv (pTHX_ SV *sv)
354	{	362	{
355	HV *st;	363	HV *st;
356	GV *gvp;	364	GV *gvp;
357	return sv_2cv (sv, &st, &gvp, 0);	365	CV *cv = sv_2cv (sv, &st, &gvp, 0);
		366
		367	if (!cv)
		368	croak ("code reference expected");
		369
		370	return cv;
358	}	371	}
		372
		373	/*****************************************************************************/
		374	/* magic glue */
		375
		376	#define CORO_MAGIC_type_cv 26
		377	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		378
		379	#define CORO_MAGIC_NN(sv, type) \
		380	(expect_true (SvMAGIC (sv)->mg_type == type) \
		381	? SvMAGIC (sv) \
		382	: mg_find (sv, type))
		383
		384	#define CORO_MAGIC(sv, type) \
		385	(expect_true (SvMAGIC (sv)) \
		386	? CORO_MAGIC_NN (sv, type) \
		387	: 0)
		388
		389	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		390	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		391
		392	INLINE struct coro *
		393	SvSTATE_ (pTHX_ SV *coro)
		394	{
		395	HV *stash;
		396	MAGIC *mg;
		397
		398	if (SvROK (coro))
		399	coro = SvRV (coro);
		400
		401	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		402	croak ("Coro::State object required");
		403
		404	stash = SvSTASH (coro);
		405	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		406	{
		407	/* very slow, but rare, check */
		408	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		409	croak ("Coro::State object required");
		410	}
		411
		412	mg = CORO_MAGIC_state (coro);
		413	return (struct coro *)mg->mg_ptr;
		414	}
		415
		416	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		417
		418	/* faster than SvSTATE, but expects a coroutine hv */
		419	#define SvSTATE_hv(hv) ((struct coro )CORO_MAGIC_NN ((SV )hv, CORO_MAGIC_type_state)->mg_ptr)
		420	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		421
		422	/*****************************************************************************/
		423	/* padlist management and caching */
359		424
360	static AV *	425	static AV *
361	coro_derive_padlist (pTHX_ CV *cv)	426	coro_derive_padlist (pTHX_ CV *cv)
362	{	427	{
363	AV *padlist = CvPADLIST (cv);	428	AV *padlist = CvPADLIST (cv);
…		…
371	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	436	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
372	#endif	437	#endif
373	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	438	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
374	--AvFILLp (padlist);	439	--AvFILLp (padlist);
375		440
376	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	441	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
377	av_store (newpadlist, 1, (SV *)newpad);	442	av_store (newpadlist, 1, (SV *)newpad);
378		443
379	return newpadlist;	444	return newpadlist;
380	}	445	}
381		446
382	static void	447	static void
383	free_padlist (pTHX_ AV *padlist)	448	free_padlist (pTHX_ AV *padlist)
384	{	449	{
385	/* may be during global destruction */	450	/* may be during global destruction */
386	if (SvREFCNT (padlist))	451	if (!IN_DESTRUCT)
387	{	452	{
388	I32 i = AvFILLp (padlist);	453	I32 i = AvFILLp (padlist);
389	while (i >= 0)	454
		455	while (i > 0) /* special-case index 0 */
390	{	456	{
391	SV **svp = av_fetch (padlist, i--, FALSE);	457	/* we try to be extra-careful here */
392	if (svp)	458	AV av = (AV )AvARRAY (padlist)[i--];
393	{	459	I32 j = AvFILLp (av);
394	SV *sv;	460
395	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))	461	while (j >= 0)
		462	SvREFCNT_dec (AvARRAY (av)[j--]);
		463
		464	AvFILLp (av) = -1;
396	SvREFCNT_dec (sv);	465	SvREFCNT_dec (av);
397
398	SvREFCNT_dec (*svp);
399	}
400	}	466	}
401		467
		468	SvREFCNT_dec (AvARRAY (padlist)[0]);
		469
		470	AvFILLp (padlist) = -1;
402	SvREFCNT_dec ((SV*)padlist);	471	SvREFCNT_dec ((SV*)padlist);
403	}	472	}
404	}	473	}
405		474
406	static int	475	static int
…		…
415		484
416	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	485	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
417		486
418	return 0;	487	return 0;
419	}	488	}
420
421	#define CORO_MAGIC_type_cv 26
422	#define CORO_MAGIC_type_state PERL_MAGIC_ext
423		489
424	static MGVTBL coro_cv_vtbl = {	490	static MGVTBL coro_cv_vtbl = {
425	0, 0, 0, 0,	491	0, 0, 0, 0,
426	coro_cv_free	492	coro_cv_free
427	};	493	};
428
429	#define CORO_MAGIC_NN(sv, type) \
430	(expect_true (SvMAGIC (sv)->mg_type == type) \
431	? SvMAGIC (sv) \
432	: mg_find (sv, type))
433
434	#define CORO_MAGIC(sv, type) \
435	(expect_true (SvMAGIC (sv)) \
436	? CORO_MAGIC_NN (sv, type) \
437	: 0)
438
439	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
440	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
441
442	INLINE struct coro *
443	SvSTATE_ (pTHX_ SV *coro)
444	{
445	HV *stash;
446	MAGIC *mg;
447
448	if (SvROK (coro))
449	coro = SvRV (coro);
450
451	if (expect_false (SvTYPE (coro) != SVt_PVHV))
452	croak ("Coro::State object required");
453
454	stash = SvSTASH (coro);
455	if (expect_false (stash != coro_stash && stash != coro_state_stash))
456	{
457	/* very slow, but rare, check */
458	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
459	croak ("Coro::State object required");
460	}
461
462	mg = CORO_MAGIC_state (coro);
463	return (struct coro *)mg->mg_ptr;
464	}
465
466	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
467
468	/* faster than SvSTATE, but expects a coroutine hv */
469	#define SvSTATE_hv(hv) ((struct coro )CORO_MAGIC_NN ((SV )hv, CORO_MAGIC_type_state)->mg_ptr)
470	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
471		494
472	/* the next two functions merely cache the padlists */	495	/* the next two functions merely cache the padlists */
473	static void	496	static void
474	get_padlist (pTHX_ CV *cv)	497	get_padlist (pTHX_ CV *cv)
475	{	498	{
…		…
503	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	526	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
504		527
505	av = (AV *)mg->mg_obj;	528	av = (AV *)mg->mg_obj;
506		529
507	if (expect_false (AvFILLp (av) >= AvMAX (av)))	530	if (expect_false (AvFILLp (av) >= AvMAX (av)))
508	av_extend (av, AvMAX (av) + 1);	531	av_extend (av, AvFILLp (av) + 1);
509		532
510	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	533	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
511	}	534	}
512		535
513	/ load & save, init *****************************************************/	536	/ load & save, init *****************************************************/
		537
		538	static void
		539	on_enterleave_call (pTHX_ SV *cb);
514		540
515	static void	541	static void
516	load_perl (pTHX_ Coro__State c)	542	load_perl (pTHX_ Coro__State c)
517	{	543	{
518	perl_slots *slot = c->slot;	544	perl_slots *slot = c->slot;
…		…
546	PUTBACK;	572	PUTBACK;
547	}	573	}
548		574
549	slf_frame = c->slf_frame;	575	slf_frame = c->slf_frame;
550	CORO_THROW = c->except;	576	CORO_THROW = c->except;
		577
		578	if (expect_false (c->on_enter))
		579	{
		580	int i;
		581
		582	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		583	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		584	}
551	}	585	}
552		586
553	static void	587	static void
554	save_perl (pTHX_ Coro__State c)	588	save_perl (pTHX_ Coro__State c)
555	{	589	{
		590	if (expect_false (c->on_leave))
		591	{
		592	int i;
		593
		594	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		595	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		596	}
		597
556	c->except = CORO_THROW;	598	c->except = CORO_THROW;
557	c->slf_frame = slf_frame;	599	c->slf_frame = slf_frame;
558		600
559	{	601	{
560	dSP;	602	dSP;
…		…
759	#endif	801	#endif
760		802
761	/*	803	/*
762	* This overrides the default magic get method of %SIG elements.	804	* This overrides the default magic get method of %SIG elements.
763	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	805	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
764	* and instead of tryign to save and restore the hash elements, we just provide	806	* and instead of trying to save and restore the hash elements, we just provide
765	* readback here.	807	* readback here.
766	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
767	* not expecting this to actually change the hook. This is a potential problem
768	* when a schedule happens then, but we ignore this.
769	*/	808	*/
770	static int	809	static int
771	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)	810	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
772	{	811	{
773	const char *s = MgPV_nolen_const (mg);	812	const char *s = MgPV_nolen_const (mg);
…		…
826	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	865	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
827		866
828	if (svp)	867	if (svp)
829	{	868	{
830	SV old = svp;	869	SV old = svp;
831	*svp = newSVsv (sv);	870	*svp = SvOK (sv) ? newSVsv (sv) : 0;
832	SvREFCNT_dec (old);	871	SvREFCNT_dec (old);
833	return 0;	872	return 0;
834	}	873	}
835	}	874	}
836		875
…		…
928	/* copy throw, in case it was set before coro_setup */	967	/* copy throw, in case it was set before coro_setup */
929	CORO_THROW = coro->except;	968	CORO_THROW = coro->except;
930	}	969	}
931		970
932	static void	971	static void
933	coro_destruct (pTHX_ struct coro *coro)	972	coro_unwind_stacks (pTHX)
934	{	973	{
935	if (!IN_DESTRUCT)	974	if (!IN_DESTRUCT)
936	{	975	{
937	/* restore all saved variables and stuff */	976	/* restore all saved variables and stuff */
938	LEAVE_SCOPE (0);	977	LEAVE_SCOPE (0);
…		…
946	POPSTACK_TO (PL_mainstack);	985	POPSTACK_TO (PL_mainstack);
947		986
948	/* unwind main stack */	987	/* unwind main stack */
949	dounwind (-1);	988	dounwind (-1);
950	}	989	}
		990	}
951		991
952	SvREFCNT_dec (GvSV (PL_defgv));	992	static void
953	SvREFCNT_dec (GvAV (PL_defgv));	993	coro_destruct_perl (pTHX_ struct coro *coro)
954	SvREFCNT_dec (GvSV (PL_errgv));	994	{
955	SvREFCNT_dec (PL_defoutgv);	995	SV *svf [9];
956	SvREFCNT_dec (PL_rs);
957	SvREFCNT_dec (GvSV (irsgv));
958	SvREFCNT_dec (GvHV (PL_hintgv));
959		996
960	SvREFCNT_dec (PL_diehook);
961	SvREFCNT_dec (PL_warnhook);
962		997	{
		998	struct coro *current = SvSTATE_current;
		999
		1000	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1001
		1002	save_perl (aTHX_ current);
		1003	load_perl (aTHX_ coro);
		1004	coro_unwind_stacks (aTHX);
		1005	coro_destruct_stacks (aTHX);
		1006
		1007	// now save some sv's to be free'd later
		1008	svf [0] = GvSV (PL_defgv);
		1009	svf [1] = (SV *)GvAV (PL_defgv);
		1010	svf [2] = GvSV (PL_errgv);
		1011	svf [3] = (SV *)PL_defoutgv;
		1012	svf [4] = PL_rs;
		1013	svf [5] = GvSV (irsgv);
		1014	svf [6] = (SV *)GvHV (PL_hintgv);
		1015	svf [7] = PL_diehook;
		1016	svf [8] = PL_warnhook;
		1017	assert (9 == sizeof (svf) / sizeof (*svf));
		1018
		1019	load_perl (aTHX_ current);
		1020	}
		1021
		1022	{
		1023	int i;
		1024
		1025	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1026	SvREFCNT_dec (svf [i]);
		1027
963	SvREFCNT_dec (coro->saved_deffh);	1028	SvREFCNT_dec (coro->saved_deffh);
964	SvREFCNT_dec (coro->rouse_cb);	1029	SvREFCNT_dec (coro->rouse_cb);
965	SvREFCNT_dec (coro->invoke_cb);	1030	SvREFCNT_dec (coro->invoke_cb);
966	SvREFCNT_dec (coro->invoke_av);	1031	SvREFCNT_dec (coro->invoke_av);
967		1032	}
968	coro_destruct_stacks (aTHX);
969	}	1033	}
970		1034
971	INLINE void	1035	INLINE void
972	free_coro_mortal (pTHX)	1036	free_coro_mortal (pTHX)
973	{	1037	{
…		…
1267	cctx_destroy (coro_cctx *cctx)	1331	cctx_destroy (coro_cctx *cctx)
1268	{	1332	{
1269	if (!cctx)	1333	if (!cctx)
1270	return;	1334	return;
1271		1335
1272	assert (cctx != cctx_current);//D temporary	1336	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1273		1337
1274	--cctx_count;	1338	--cctx_count;
1275	coro_destroy (&cctx->cctx);	1339	coro_destroy (&cctx->cctx);
1276		1340
1277	/* coro_transfer creates new, empty cctx's */	1341	/* coro_transfer creates new, empty cctx's */
…		…
1341	/* TODO: throwing up here is considered harmful */	1405	/* TODO: throwing up here is considered harmful */
1342		1406
1343	if (expect_true (prev != next))	1407	if (expect_true (prev != next))
1344	{	1408	{
1345	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))	1409	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
1346	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1410	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1347		1411
1348	if (expect_false (next->flags & CF_RUNNING))
1349	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1350
1351	if (expect_false (next->flags & CF_DESTROYED))	1412	if (expect_false (next->flags & (CF_RUNNING \| CF_DESTROYED \| CF_SUSPENDED)))
1352	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1413	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1353		1414
1354	#if !PERL_VERSION_ATLEAST (5,10,0)	1415	#if !PERL_VERSION_ATLEAST (5,10,0)
1355	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1416	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1356	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1417	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1357	#endif	1418	#endif
…		…
1395	coro_setup (aTHX_ next);	1456	coro_setup (aTHX_ next);
1396	}	1457	}
1397	else	1458	else
1398	load_perl (aTHX_ next);	1459	load_perl (aTHX_ next);
1399		1460
1400	assert (!prev->cctx);//D temporary
1401
1402	/* possibly untie and reuse the cctx */	1461	/* possibly untie and reuse the cctx */
1403	if (expect_true (	1462	if (expect_true (
1404	cctx_current->idle_sp == STACKLEVEL	1463	cctx_current->idle_sp == STACKLEVEL
1405	&& !(cctx_current->flags & CC_TRACE)	1464	&& !(cctx_current->flags & CC_TRACE)
1406	&& !force_cctx	1465	&& !force_cctx
…		…
1447	coro_state_destroy (pTHX_ struct coro *coro)	1506	coro_state_destroy (pTHX_ struct coro *coro)
1448	{	1507	{
1449	if (coro->flags & CF_DESTROYED)	1508	if (coro->flags & CF_DESTROYED)
1450	return 0;	1509	return 0;
1451		1510
1452	if (coro->on_destroy)	1511	if (coro->on_destroy && !PL_dirty)
1453	coro->on_destroy (aTHX_ coro);	1512	coro->on_destroy (aTHX_ coro);
1454		1513
1455	coro->flags \|= CF_DESTROYED;	1514	coro->flags \|= CF_DESTROYED;
1456		1515
1457	if (coro->flags & CF_READY)	1516	if (coro->flags & CF_READY)
…		…
1461	--coro_nready;	1520	--coro_nready;
1462	}	1521	}
1463	else	1522	else
1464	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	1523	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
1465		1524
1466	if (coro->mainstack && coro->mainstack != main_mainstack)	1525	if (coro->mainstack
1467	{	1526	&& coro->mainstack != main_mainstack
1468	struct coro temp;	1527	&& coro->slot
1469		1528	&& !PL_dirty)
1470	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1471
1472	save_perl (aTHX_ &temp);
1473	load_perl (aTHX_ coro);
1474
1475	coro_destruct (aTHX_ coro);	1529	coro_destruct_perl (aTHX_ coro);
1476
1477	load_perl (aTHX_ &temp);
1478
1479	coro->slot = 0;
1480	}
1481		1530
1482	cctx_destroy (coro->cctx);	1531	cctx_destroy (coro->cctx);
1483	SvREFCNT_dec (coro->startcv);	1532	SvREFCNT_dec (coro->startcv);
1484	SvREFCNT_dec (coro->args);	1533	SvREFCNT_dec (coro->args);
1485	SvREFCNT_dec (CORO_THROW);	1534	SvREFCNT_dec (CORO_THROW);
…		…
1572	/ Coro ******************************************************************/	1621	/ Coro ******************************************************************/
1573		1622
1574	INLINE void	1623	INLINE void
1575	coro_enq (pTHX_ struct coro *coro)	1624	coro_enq (pTHX_ struct coro *coro)
1576	{	1625	{
1577	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1626	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1578	}
1579		1627
1580	INLINE SV *	1628	SvREFCNT_inc_NN (coro->hv);
		1629
		1630	coro->next_ready = 0;
		1631	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1632	ready [1] = coro;
		1633	}
		1634
		1635	INLINE struct coro *
1581	coro_deq (pTHX)	1636	coro_deq (pTHX)
1582	{	1637	{
1583	int prio;	1638	int prio;
1584		1639
1585	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1640	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1586	if (AvFILLp (coro_ready [prio]) >= 0)	1641	{
1587	return av_shift (coro_ready [prio]);	1642	struct coro **ready = coro_ready [prio];
		1643
		1644	if (ready [0])
		1645	{
		1646	struct coro *coro = ready [0];
		1647	ready [0] = coro->next_ready;
		1648	return coro;
		1649	}
		1650	}
1588		1651
1589	return 0;	1652	return 0;
1590	}	1653	}
1591		1654
1592	static int	1655	static int
…		…
1656	static void	1719	static void
1657	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1720	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1658	{	1721	{
1659	for (;;)	1722	for (;;)
1660	{	1723	{
1661	SV *next_sv = coro_deq (aTHX);	1724	struct coro *next = coro_deq (aTHX);
1662		1725
1663	if (expect_true (next_sv))	1726	if (expect_true (next))
1664	{	1727	{
1665	struct coro *next = SvSTATE_hv (next_sv);
1666
1667	/* cannot transfer to destroyed coros, skip and look for next */	1728	/* cannot transfer to destroyed coros, skip and look for next */
1668	if (expect_false (next->flags & CF_DESTROYED))	1729	if (expect_false (next->flags & (CF_DESTROYED \| CF_SUSPENDED)))
1669	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1730	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1670	else	1731	else
1671	{	1732	{
1672	next->flags &= ~CF_READY;	1733	next->flags &= ~CF_READY;
1673	--coro_nready;	1734	--coro_nready;
1674		1735
…		…
1852	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */	1913	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */
1853	api_ready (aTHX_ sv_manager);	1914	api_ready (aTHX_ sv_manager);
1854		1915
1855	frame->prepare = prepare_schedule;	1916	frame->prepare = prepare_schedule;
1856	frame->check = slf_check_repeat;	1917	frame->check = slf_check_repeat;
		1918
		1919	/* as a minor optimisation, we could unwind all stacks here */
		1920	/* but that puts extra pressure on pp_slf, and is not worth much */
		1921	/coro_unwind_stacks (aTHX);/
1857	}	1922	}
1858		1923
1859	/*****************************************************************************/	1924	/*****************************************************************************/
1860	/* async pool handler */	1925	/* async pool handler */
1861		1926
…		…
1944	SV data = (SV )GENSUB_ARG;	2009	SV data = (SV )GENSUB_ARG;
1945		2010
1946	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2011	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1947	{	2012	{
1948	/* first call, set args */	2013	/* first call, set args */
		2014	SV *coro = SvRV (data);
1949	AV *av = newAV ();	2015	AV *av = newAV ();
1950	SV *coro = SvRV (data);
1951		2016
1952	SvRV_set (data, (SV *)av);	2017	SvRV_set (data, (SV *)av);
1953	api_ready (aTHX_ coro);
1954	SvREFCNT_dec (coro);
1955		2018
1956	/* better take a full copy of the arguments */	2019	/* better take a full copy of the arguments */
1957	while (items--)	2020	while (items--)
1958	av_store (av, items, newSVsv (ST (items)));	2021	av_store (av, items, newSVsv (ST (items)));
		2022
		2023	api_ready (aTHX_ coro);
		2024	SvREFCNT_dec (coro);
1959	}	2025	}
1960		2026
1961	XSRETURN_EMPTY;	2027	XSRETURN_EMPTY;
1962	}	2028	}
1963		2029
…		…
1980		2046
1981	EXTEND (SP, AvFILLp (av) + 1);	2047	EXTEND (SP, AvFILLp (av) + 1);
1982	for (i = 0; i <= AvFILLp (av); ++i)	2048	for (i = 0; i <= AvFILLp (av); ++i)
1983	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2049	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1984		2050
1985	/* we have stolen the elements, so ste length to zero and free */	2051	/* we have stolen the elements, so set length to zero and free */
1986	AvFILLp (av) = -1;	2052	AvFILLp (av) = -1;
1987	av_undef (av);	2053	av_undef (av);
1988		2054
1989	PUTBACK;	2055	PUTBACK;
1990	}	2056	}
…		…
2280		2346
2281	PL_op->op_ppaddr = pp_slf;	2347	PL_op->op_ppaddr = pp_slf;
2282	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */	2348	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */
2283		2349
2284	PL_op = (OP *)&slf_restore;	2350	PL_op = (OP *)&slf_restore;
		2351	}
		2352
		2353	/*****************************************************************************/
		2354	/* dynamic wind */
		2355
		2356	static void
		2357	on_enterleave_call (pTHX_ SV *cb)
		2358	{
		2359	dSP;
		2360
		2361	PUSHSTACK;
		2362
		2363	PUSHMARK (SP);
		2364	PUTBACK;
		2365	call_sv (cb, G_VOID \| G_DISCARD);
		2366	SPAGAIN;
		2367
		2368	POPSTACK;
		2369	}
		2370
		2371	static SV *
		2372	coro_avp_pop_and_free (pTHX_ AV **avp)
		2373	{
		2374	AV av = avp;
		2375	SV *res = av_pop (av);
		2376
		2377	if (AvFILLp (av) < 0)
		2378	{
		2379	*avp = 0;
		2380	SvREFCNT_dec (av);
		2381	}
		2382
		2383	return res;
		2384	}
		2385
		2386	static void
		2387	coro_pop_on_enter (pTHX_ void *coro)
		2388	{
		2389	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_enter);
		2390	SvREFCNT_dec (cb);
		2391	}
		2392
		2393	static void
		2394	coro_pop_on_leave (pTHX_ void *coro)
		2395	{
		2396	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_leave);
		2397	on_enterleave_call (aTHX_ sv_2mortal (cb));
2285	}	2398	}
2286		2399
2287	/*****************************************************************************/	2400	/*****************************************************************************/
2288	/* PerlIO::cede */	2401	/* PerlIO::cede */
2289		2402
…		…
2915	SV *	3028	SV *
2916	clone (Coro::State coro)	3029	clone (Coro::State coro)
2917	CODE:	3030	CODE:
2918	{	3031	{
2919	#if CORO_CLONE	3032	#if CORO_CLONE
2920	struct coro *ncoro = coro_clone (coro);	3033	struct coro *ncoro = coro_clone (aTHX_ coro);
2921	MAGIC *mg;	3034	MAGIC *mg;
2922	/* TODO: too much duplication */	3035	/* TODO: too much duplication */
2923	ncoro->hv = newHV ();	3036	ncoro->hv = newHV ();
2924	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);	3037	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);
2925	mg->mg_flags \|= MGf_DUP;	3038	mg->mg_flags \|= MGf_DUP;
…		…
2987	eval = 1	3100	eval = 1
2988	CODE:	3101	CODE:
2989	{	3102	{
2990	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))	3103	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
2991	{	3104	{
2992	struct coro temp;	3105	struct coro *current = SvSTATE_current;
2993		3106
2994	if (!(coro->flags & CF_RUNNING))	3107	if (current != coro)
2995	{	3108	{
2996	PUTBACK;	3109	PUTBACK;
2997	save_perl (aTHX_ &temp);	3110	save_perl (aTHX_ current);
2998	load_perl (aTHX_ coro);	3111	load_perl (aTHX_ coro);
		3112	SPAGAIN;
2999	}	3113	}
3000		3114
3001	{
3002	dSP;
3003	ENTER;
3004	SAVETMPS;
3005	PUTBACK;
3006	PUSHSTACK;	3115	PUSHSTACK;
		3116
3007	PUSHMARK (SP);	3117	PUSHMARK (SP);
		3118	PUTBACK;
3008		3119
3009	if (ix)	3120	if (ix)
3010	eval_sv (coderef, 0);	3121	eval_sv (coderef, 0);
3011	else	3122	else
3012	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	3123	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
3013		3124
3014	POPSTACK;	3125	POPSTACK;
3015	SPAGAIN;	3126	SPAGAIN;
3016	FREETMPS;
3017	LEAVE;
3018	PUTBACK;
3019	}
3020		3127
3021	if (!(coro->flags & CF_RUNNING))	3128	if (current != coro)
3022	{	3129	{
		3130	PUTBACK;
3023	save_perl (aTHX_ coro);	3131	save_perl (aTHX_ coro);
3024	load_perl (aTHX_ &temp);	3132	load_perl (aTHX_ current);
3025	SPAGAIN;	3133	SPAGAIN;
3026	}	3134	}
3027	}	3135	}
3028	}	3136	}
3029		3137
…		…
3033	ALIAS:	3141	ALIAS:
3034	is_ready = CF_READY	3142	is_ready = CF_READY
3035	is_running = CF_RUNNING	3143	is_running = CF_RUNNING
3036	is_new = CF_NEW	3144	is_new = CF_NEW
3037	is_destroyed = CF_DESTROYED	3145	is_destroyed = CF_DESTROYED
		3146	is_suspended = CF_SUSPENDED
3038	CODE:	3147	CODE:
3039	RETVAL = boolSV (coro->flags & ix);	3148	RETVAL = boolSV (coro->flags & ix);
3040	OUTPUT:	3149	OUTPUT:
3041	RETVAL	3150	RETVAL
3042		3151
…		…
3107	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	3216	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
3108		3217
3109	SV tmp = src; src = dst; *dst = tmp;	3218	SV tmp = src; src = dst; *dst = tmp;
3110	}	3219	}
3111		3220
		3221	void
		3222	cancel (Coro::State self)
		3223	CODE:
		3224	coro_state_destroy (aTHX_ self);
		3225	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3226
3112		3227
3113	MODULE = Coro::State PACKAGE = Coro	3228	MODULE = Coro::State PACKAGE = Coro
3114		3229
3115	BOOT:	3230	BOOT:
3116	{	3231	{
3117	int i;
3118
3119	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3232	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3120	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3233	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3121	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3234	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3122	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3235	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3123	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3236	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3124	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3237	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3125	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3238	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3126	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3239	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
…		…
3137	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3250	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
3138	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3251	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
3139	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3252	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
3140	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3253	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
3141	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3254	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
3142
3143	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3144	coro_ready[i] = newAV ();
3145		3255
3146	{	3256	{
3147	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3257	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3148		3258
3149	coroapi.schedule = api_schedule;	3259	coroapi.schedule = api_schedule;
…		…
3190	cede_notself (...)	3300	cede_notself (...)
3191	CODE:	3301	CODE:
3192	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3302	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3193		3303
3194	void	3304	void
3195	_cancel (Coro::State self)
3196	CODE:
3197	coro_state_destroy (aTHX_ self);
3198	coro_call_on_destroy (aTHX_ self);
3199
3200	void
3201	_set_current (SV *current)	3305	_set_current (SV *current)
3202	PROTOTYPE: $	3306	PROTOTYPE: $
3203	CODE:	3307	CODE:
3204	SvREFCNT_dec (SvRV (coro_current));	3308	SvREFCNT_dec (SvRV (coro_current));
3205	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3309	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3247	PROTOTYPE:	3351	PROTOTYPE:
3248	CODE:	3352	CODE:
3249	RETVAL = coro_nready;	3353	RETVAL = coro_nready;
3250	OUTPUT:	3354	OUTPUT:
3251	RETVAL	3355	RETVAL
		3356
		3357	void
		3358	suspend (Coro::State self)
		3359	PROTOTYPE: $
		3360	CODE:
		3361	self->flags \|= CF_SUSPENDED;
		3362
		3363	void
		3364	resume (Coro::State self)
		3365	PROTOTYPE: $
		3366	CODE:
		3367	self->flags &= ~CF_SUSPENDED;
3252		3368
3253	void	3369	void
3254	_pool_handler (...)	3370	_pool_handler (...)
3255	CODE:	3371	CODE:
3256	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3372	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3311	rouse_wait (...)	3427	rouse_wait (...)
3312	PROTOTYPE: ;$	3428	PROTOTYPE: ;$
3313	PPCODE:	3429	PPCODE:
3314	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3430	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3315		3431
		3432	void
		3433	on_enter (SV *block)
		3434	ALIAS:
		3435	on_leave = 1
		3436	PROTOTYPE: &
		3437	CODE:
		3438	{
		3439	struct coro *coro = SvSTATE_current;
		3440	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3441
		3442	block = (SV *)coro_sv_2cv (aTHX_ block);
		3443
		3444	if (!*avp)
		3445	*avp = newAV ();
		3446
		3447	av_push (*avp, SvREFCNT_inc (block));
		3448
		3449	if (!ix)
		3450	on_enterleave_call (aTHX_ block);
		3451
		3452	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3453	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3454	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3455	}
		3456
3316		3457
3317	MODULE = Coro::State PACKAGE = PerlIO::cede	3458	MODULE = Coro::State PACKAGE = PerlIO::cede
3318		3459
3319	BOOT:	3460	BOOT:
3320	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3461	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3330	GvSTASH (CvGV (cv))	3471	GvSTASH (CvGV (cv))
3331	);	3472	);
3332	OUTPUT:	3473	OUTPUT:
3333	RETVAL	3474	RETVAL
3334		3475
3335	# helper for Coro::Channel	3476	# helper for Coro::Channel and others
3336	SV *	3477	SV *
3337	_alloc (int count)	3478	_alloc (int count)
3338	CODE:	3479	CODE:
3339	RETVAL = coro_waitarray_new (aTHX_ count);	3480	RETVAL = coro_waitarray_new (aTHX_ count);
3340	OUTPUT:	3481	OUTPUT:
…		…
3398	for (i = 1; i <= wcount; ++i)	3539	for (i = 1; i <= wcount; ++i)
3399	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3540	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3400	}	3541	}
3401	}	3542	}
3402		3543
		3544	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3545
		3546	void
		3547	_may_delete (SV *sem, int count, int extra_refs)
		3548	PPCODE:
		3549	{
		3550	AV av = (AV )SvRV (sem);
		3551
		3552	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3553	&& AvFILLp (av) == 0 /* no waiters, just count */
		3554	&& SvIV (AvARRAY (av)[0]) == count)
		3555	XSRETURN_YES;
		3556
		3557	XSRETURN_NO;
		3558	}
		3559
3403	MODULE = Coro::State PACKAGE = Coro::Signal	3560	MODULE = Coro::State PACKAGE = Coro::Signal
3404		3561
3405	SV *	3562	SV *
3406	new (SV *klass)	3563	new (SV *klass)
3407	CODE:	3564	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.329 by root, Tue Nov 25 20:48:41 2008 UTC vs. Revision 1.351 by root, Sat Jun 20 08:58:25 2009 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.329 by root, Tue Nov 25 20:48:41 2008 UTC vs.
Revision 1.351 by root, Sat Jun 20 08:58:25 2009 UTC