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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.327 by root, Mon Nov 24 06:07:16 2008 UTC vs.
Revision 1.349 by root, Wed Jun 10 00:47:24 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	}
		991
		992	static void
		993	coro_destruct_perl (pTHX_ struct coro *coro)
		994	{
		995	coro_unwind_stacks (aTHX);
951		996
952	SvREFCNT_dec (GvSV (PL_defgv));	997	SvREFCNT_dec (GvSV (PL_defgv));
953	SvREFCNT_dec (GvAV (PL_defgv));	998	SvREFCNT_dec (GvAV (PL_defgv));
954	SvREFCNT_dec (GvSV (PL_errgv));	999	SvREFCNT_dec (GvSV (PL_errgv));
955	SvREFCNT_dec (PL_defoutgv);	1000	SvREFCNT_dec (PL_defoutgv);
…		…
1178	/*	1223	/*
1179	* If perl-run returns we assume exit() was being called or the coro	1224	* If perl-run returns we assume exit() was being called or the coro
1180	* fell off the end, which seems to be the only valid (non-bug)	1225	* fell off the end, which seems to be the only valid (non-bug)
1181	* reason for perl_run to return. We try to exit by jumping to the	1226	* reason for perl_run to return. We try to exit by jumping to the
1182	* bootstrap-time "top" top_env, as we cannot restore the "main"	1227	* bootstrap-time "top" top_env, as we cannot restore the "main"
1183	* coroutine as Coro has no such concept	1228	* coroutine as Coro has no such concept.
		1229	* This actually isn't valid with the pthread backend, but OSes requiring
		1230	* that backend are too broken to do it in a standards-compliant way.
1184	*/	1231	*/
1185	PL_top_env = main_top_env;	1232	PL_top_env = main_top_env;
1186	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1233	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1187	}	1234	}
1188	}	1235	}
…		…
1265	cctx_destroy (coro_cctx *cctx)	1312	cctx_destroy (coro_cctx *cctx)
1266	{	1313	{
1267	if (!cctx)	1314	if (!cctx)
1268	return;	1315	return;
1269		1316
1270	assert (cctx != cctx_current);//D temporary	1317	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1271		1318
1272	--cctx_count;	1319	--cctx_count;
1273	coro_destroy (&cctx->cctx);	1320	coro_destroy (&cctx->cctx);
1274		1321
1275	/* coro_transfer creates new, empty cctx's */	1322	/* coro_transfer creates new, empty cctx's */
…		…
1339	/* TODO: throwing up here is considered harmful */	1386	/* TODO: throwing up here is considered harmful */
1340		1387
1341	if (expect_true (prev != next))	1388	if (expect_true (prev != next))
1342	{	1389	{
1343	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))	1390	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
1344	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1391	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1345		1392
1346	if (expect_false (next->flags & CF_RUNNING))
1347	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1348
1349	if (expect_false (next->flags & CF_DESTROYED))	1393	if (expect_false (next->flags & (CF_RUNNING \| CF_DESTROYED \| CF_SUSPENDED)))
1350	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1394	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1351		1395
1352	#if !PERL_VERSION_ATLEAST (5,10,0)	1396	#if !PERL_VERSION_ATLEAST (5,10,0)
1353	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1397	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1354	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1398	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1355	#endif	1399	#endif
…		…
1393	coro_setup (aTHX_ next);	1437	coro_setup (aTHX_ next);
1394	}	1438	}
1395	else	1439	else
1396	load_perl (aTHX_ next);	1440	load_perl (aTHX_ next);
1397		1441
1398	assert (!prev->cctx);//D temporary
1399
1400	/* possibly untie and reuse the cctx */	1442	/* possibly untie and reuse the cctx */
1401	if (expect_true (	1443	if (expect_true (
1402	cctx_current->idle_sp == STACKLEVEL	1444	cctx_current->idle_sp == STACKLEVEL
1403	&& !(cctx_current->flags & CC_TRACE)	1445	&& !(cctx_current->flags & CC_TRACE)
1404	&& !force_cctx	1446	&& !force_cctx
…		…
1445	coro_state_destroy (pTHX_ struct coro *coro)	1487	coro_state_destroy (pTHX_ struct coro *coro)
1446	{	1488	{
1447	if (coro->flags & CF_DESTROYED)	1489	if (coro->flags & CF_DESTROYED)
1448	return 0;	1490	return 0;
1449		1491
1450	if (coro->on_destroy)	1492	if (coro->on_destroy && !PL_dirty)
1451	coro->on_destroy (aTHX_ coro);	1493	coro->on_destroy (aTHX_ coro);
1452		1494
1453	coro->flags \|= CF_DESTROYED;	1495	coro->flags \|= CF_DESTROYED;
1454		1496
1455	if (coro->flags & CF_READY)	1497	if (coro->flags & CF_READY)
…		…
1459	--coro_nready;	1501	--coro_nready;
1460	}	1502	}
1461	else	1503	else
1462	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */	1504	coro->flags \|= CF_READY; /* make sure it is NOT put into the readyqueue */
1463		1505
1464	if (coro->mainstack && coro->mainstack != main_mainstack)	1506	if (coro->mainstack
		1507	&& coro->mainstack != main_mainstack
		1508	&& coro->slot
		1509	&& !PL_dirty)
1465	{	1510	{
1466	struct coro temp;	1511	struct coro *current = SvSTATE_current;
1467		1512
1468	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));	1513	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1469		1514
1470	save_perl (aTHX_ &temp);	1515	save_perl (aTHX_ current);
1471	load_perl (aTHX_ coro);	1516	load_perl (aTHX_ coro);
1472		1517
1473	coro_destruct (aTHX_ coro);	1518	coro_destruct_perl (aTHX_ coro);
1474		1519
1475	load_perl (aTHX_ &temp);	1520	load_perl (aTHX_ current);
1476		1521
1477	coro->slot = 0;	1522	coro->slot = 0;
1478	}	1523	}
1479		1524
1480	cctx_destroy (coro->cctx);	1525	cctx_destroy (coro->cctx);
…		…
1570	/ Coro ******************************************************************/	1615	/ Coro ******************************************************************/
1571		1616
1572	INLINE void	1617	INLINE void
1573	coro_enq (pTHX_ struct coro *coro)	1618	coro_enq (pTHX_ struct coro *coro)
1574	{	1619	{
1575	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1620	struct coro **ready = coro_ready [coro->prio - PRIO_MIN];
1576	}
1577		1621
1578	INLINE SV *	1622	SvREFCNT_inc_NN (coro->hv);
		1623
		1624	coro->next_ready = 0;
		1625	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1626	ready [1] = coro;
		1627	}
		1628
		1629	INLINE struct coro *
1579	coro_deq (pTHX)	1630	coro_deq (pTHX)
1580	{	1631	{
1581	int prio;	1632	int prio;
1582		1633
1583	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1634	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1584	if (AvFILLp (coro_ready [prio]) >= 0)	1635	{
1585	return av_shift (coro_ready [prio]);	1636	struct coro **ready = coro_ready [prio];
		1637
		1638	if (ready [0])
		1639	{
		1640	struct coro *coro = ready [0];
		1641	ready [0] = coro->next_ready;
		1642	return coro;
		1643	}
		1644	}
1586		1645
1587	return 0;	1646	return 0;
1588	}	1647	}
1589		1648
1590	static int	1649	static int
…		…
1654	static void	1713	static void
1655	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1714	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1656	{	1715	{
1657	for (;;)	1716	for (;;)
1658	{	1717	{
1659	SV *next_sv = coro_deq (aTHX);	1718	struct coro *next = coro_deq (aTHX);
1660		1719
1661	if (expect_true (next_sv))	1720	if (expect_true (next))
1662	{	1721	{
1663	struct coro *next = SvSTATE_hv (next_sv);
1664
1665	/* cannot transfer to destroyed coros, skip and look for next */	1722	/* cannot transfer to destroyed coros, skip and look for next */
1666	if (expect_false (next->flags & CF_DESTROYED))	1723	if (expect_false (next->flags & (CF_DESTROYED \| CF_SUSPENDED)))
1667	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1724	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1668	else	1725	else
1669	{	1726	{
1670	next->flags &= ~CF_READY;	1727	next->flags &= ~CF_READY;
1671	--coro_nready;	1728	--coro_nready;
1672		1729
…		…
1850	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */	1907	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */
1851	api_ready (aTHX_ sv_manager);	1908	api_ready (aTHX_ sv_manager);
1852		1909
1853	frame->prepare = prepare_schedule;	1910	frame->prepare = prepare_schedule;
1854	frame->check = slf_check_repeat;	1911	frame->check = slf_check_repeat;
		1912
		1913	/* as a minor optimisation, we could unwind all stacks here */
		1914	/* but that puts extra pressure on pp_slf, and is not worth much */
		1915	/coro_unwind_stacks (aTHX);/
1855	}	1916	}
1856		1917
1857	/*****************************************************************************/	1918	/*****************************************************************************/
1858	/* async pool handler */	1919	/* async pool handler */
1859		1920
…		…
1942	SV data = (SV )GENSUB_ARG;	2003	SV data = (SV )GENSUB_ARG;
1943		2004
1944	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2005	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1945	{	2006	{
1946	/* first call, set args */	2007	/* first call, set args */
		2008	SV *coro = SvRV (data);
1947	AV *av = newAV ();	2009	AV *av = newAV ();
1948	SV *coro = SvRV (data);
1949		2010
1950	SvRV_set (data, (SV *)av);	2011	SvRV_set (data, (SV *)av);
1951	api_ready (aTHX_ coro);
1952	SvREFCNT_dec (coro);
1953		2012
1954	/* better take a full copy of the arguments */	2013	/* better take a full copy of the arguments */
1955	while (items--)	2014	while (items--)
1956	av_store (av, items, newSVsv (ST (items)));	2015	av_store (av, items, newSVsv (ST (items)));
		2016
		2017	api_ready (aTHX_ coro);
		2018	SvREFCNT_dec (coro);
1957	}	2019	}
1958		2020
1959	XSRETURN_EMPTY;	2021	XSRETURN_EMPTY;
1960	}	2022	}
1961		2023
…		…
1978		2040
1979	EXTEND (SP, AvFILLp (av) + 1);	2041	EXTEND (SP, AvFILLp (av) + 1);
1980	for (i = 0; i <= AvFILLp (av); ++i)	2042	for (i = 0; i <= AvFILLp (av); ++i)
1981	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2043	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1982		2044
1983	/* we have stolen the elements, so ste length to zero and free */	2045	/* we have stolen the elements, so set length to zero and free */
1984	AvFILLp (av) = -1;	2046	AvFILLp (av) = -1;
1985	av_undef (av);	2047	av_undef (av);
1986		2048
1987	PUTBACK;	2049	PUTBACK;
1988	}	2050	}
…		…
2278		2340
2279	PL_op->op_ppaddr = pp_slf;	2341	PL_op->op_ppaddr = pp_slf;
2280	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */	2342	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */
2281		2343
2282	PL_op = (OP *)&slf_restore;	2344	PL_op = (OP *)&slf_restore;
		2345	}
		2346
		2347	/*****************************************************************************/
		2348	/* dynamic wind */
		2349
		2350	static void
		2351	on_enterleave_call (pTHX_ SV *cb)
		2352	{
		2353	dSP;
		2354
		2355	PUSHSTACK;
		2356
		2357	PUSHMARK (SP);
		2358	PUTBACK;
		2359	call_sv (cb, G_VOID \| G_DISCARD);
		2360	SPAGAIN;
		2361
		2362	POPSTACK;
		2363	}
		2364
		2365	static SV *
		2366	coro_avp_pop_and_free (pTHX_ AV **avp)
		2367	{
		2368	AV av = avp;
		2369	SV *res = av_pop (av);
		2370
		2371	if (AvFILLp (av) < 0)
		2372	{
		2373	*avp = 0;
		2374	SvREFCNT_dec (av);
		2375	}
		2376
		2377	return res;
		2378	}
		2379
		2380	static void
		2381	coro_pop_on_enter (pTHX_ void *coro)
		2382	{
		2383	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_enter);
		2384	SvREFCNT_dec (cb);
		2385	}
		2386
		2387	static void
		2388	coro_pop_on_leave (pTHX_ void *coro)
		2389	{
		2390	SV cb = coro_avp_pop_and_free (aTHX_ &((struct coro )coro)->on_leave);
		2391	on_enterleave_call (aTHX_ sv_2mortal (cb));
2283	}	2392	}
2284		2393
2285	/*****************************************************************************/	2394	/*****************************************************************************/
2286	/* PerlIO::cede */	2395	/* PerlIO::cede */
2287		2396
…		…
2368	SV **ary;	2477	SV **ary;
2369		2478
2370	/* unfortunately, building manually saves memory */	2479	/* unfortunately, building manually saves memory */
2371	Newx (ary, 2, SV *);	2480	Newx (ary, 2, SV *);
2372	AvALLOC (av) = ary;	2481	AvALLOC (av) = ary;
		2482	#if PERL_VERSION_ATLEAST (5,10,0)
2373	/AvARRAY (av) = ary;/	2483	AvARRAY (av) = ary;
		2484	#else
2374	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2485	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2486	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2487	SvPVX ((SV )av) = (char )ary;
		2488	#endif
2375	AvMAX (av) = 1;	2489	AvMAX (av) = 1;
2376	AvFILLp (av) = 0;	2490	AvFILLp (av) = 0;
2377	ary [0] = newSViv (count);	2491	ary [0] = newSViv (count);
2378		2492
2379	return newRV_noinc ((SV *)av);	2493	return newRV_noinc ((SV *)av);
…		…
2908	SV *	3022	SV *
2909	clone (Coro::State coro)	3023	clone (Coro::State coro)
2910	CODE:	3024	CODE:
2911	{	3025	{
2912	#if CORO_CLONE	3026	#if CORO_CLONE
2913	struct coro *ncoro = coro_clone (coro);	3027	struct coro *ncoro = coro_clone (aTHX_ coro);
2914	MAGIC *mg;	3028	MAGIC *mg;
2915	/* TODO: too much duplication */	3029	/* TODO: too much duplication */
2916	ncoro->hv = newHV ();	3030	ncoro->hv = newHV ();
2917	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);	3031	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);
2918	mg->mg_flags \|= MGf_DUP;	3032	mg->mg_flags \|= MGf_DUP;
…		…
2980	eval = 1	3094	eval = 1
2981	CODE:	3095	CODE:
2982	{	3096	{
2983	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))	3097	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
2984	{	3098	{
2985	struct coro temp;	3099	struct coro *current = SvSTATE_current;
2986		3100
2987	if (!(coro->flags & CF_RUNNING))	3101	if (current != coro)
2988	{	3102	{
2989	PUTBACK;	3103	PUTBACK;
2990	save_perl (aTHX_ &temp);	3104	save_perl (aTHX_ current);
2991	load_perl (aTHX_ coro);	3105	load_perl (aTHX_ coro);
		3106	SPAGAIN;
2992	}	3107	}
2993		3108
2994	{
2995	dSP;
2996	ENTER;
2997	SAVETMPS;
2998	PUTBACK;
2999	PUSHSTACK;	3109	PUSHSTACK;
		3110
3000	PUSHMARK (SP);	3111	PUSHMARK (SP);
		3112	PUTBACK;
3001		3113
3002	if (ix)	3114	if (ix)
3003	eval_sv (coderef, 0);	3115	eval_sv (coderef, 0);
3004	else	3116	else
3005	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	3117	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
3006		3118
3007	POPSTACK;	3119	POPSTACK;
3008	SPAGAIN;	3120	SPAGAIN;
3009	FREETMPS;
3010	LEAVE;
3011	PUTBACK;
3012	}
3013		3121
3014	if (!(coro->flags & CF_RUNNING))	3122	if (current != coro)
3015	{	3123	{
		3124	PUTBACK;
3016	save_perl (aTHX_ coro);	3125	save_perl (aTHX_ coro);
3017	load_perl (aTHX_ &temp);	3126	load_perl (aTHX_ current);
3018	SPAGAIN;	3127	SPAGAIN;
3019	}	3128	}
3020	}	3129	}
3021	}	3130	}
3022		3131
…		…
3026	ALIAS:	3135	ALIAS:
3027	is_ready = CF_READY	3136	is_ready = CF_READY
3028	is_running = CF_RUNNING	3137	is_running = CF_RUNNING
3029	is_new = CF_NEW	3138	is_new = CF_NEW
3030	is_destroyed = CF_DESTROYED	3139	is_destroyed = CF_DESTROYED
		3140	is_suspended = CF_SUSPENDED
3031	CODE:	3141	CODE:
3032	RETVAL = boolSV (coro->flags & ix);	3142	RETVAL = boolSV (coro->flags & ix);
3033	OUTPUT:	3143	OUTPUT:
3034	RETVAL	3144	RETVAL
3035		3145
…		…
3100	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;	3210	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
3101		3211
3102	SV tmp = src; src = dst; *dst = tmp;	3212	SV tmp = src; src = dst; *dst = tmp;
3103	}	3213	}
3104		3214
		3215	void
		3216	cancel (Coro::State self)
		3217	CODE:
		3218	coro_state_destroy (aTHX_ self);
		3219	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3220
3105		3221
3106	MODULE = Coro::State PACKAGE = Coro	3222	MODULE = Coro::State PACKAGE = Coro
3107		3223
3108	BOOT:	3224	BOOT:
3109	{	3225	{
3110	int i;
3111
3112	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3226	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3113	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3227	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3114	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3228	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3115	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3229	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3116	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3230	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3117	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3231	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3118	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3232	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3119	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3233	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
…		…
3130	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3244	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
3131	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3245	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
3132	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3246	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
3133	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3247	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
3134	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3248	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
3135
3136	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3137	coro_ready[i] = newAV ();
3138		3249
3139	{	3250	{
3140	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3251	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3141		3252
3142	coroapi.schedule = api_schedule;	3253	coroapi.schedule = api_schedule;
…		…
3183	cede_notself (...)	3294	cede_notself (...)
3184	CODE:	3295	CODE:
3185	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3296	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3186		3297
3187	void	3298	void
3188	_cancel (Coro::State self)
3189	CODE:
3190	coro_state_destroy (aTHX_ self);
3191	coro_call_on_destroy (aTHX_ self);
3192
3193	void
3194	_set_current (SV *current)	3299	_set_current (SV *current)
3195	PROTOTYPE: $	3300	PROTOTYPE: $
3196	CODE:	3301	CODE:
3197	SvREFCNT_dec (SvRV (coro_current));	3302	SvREFCNT_dec (SvRV (coro_current));
3198	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));	3303	SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
…		…
3240	PROTOTYPE:	3345	PROTOTYPE:
3241	CODE:	3346	CODE:
3242	RETVAL = coro_nready;	3347	RETVAL = coro_nready;
3243	OUTPUT:	3348	OUTPUT:
3244	RETVAL	3349	RETVAL
		3350
		3351	void
		3352	suspend (Coro::State self)
		3353	PROTOTYPE: $
		3354	CODE:
		3355	self->flags \|= CF_SUSPENDED;
		3356
		3357	void
		3358	resume (Coro::State self)
		3359	PROTOTYPE: $
		3360	CODE:
		3361	self->flags &= ~CF_SUSPENDED;
3245		3362
3246	void	3363	void
3247	_pool_handler (...)	3364	_pool_handler (...)
3248	CODE:	3365	CODE:
3249	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3366	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
…		…
3304	rouse_wait (...)	3421	rouse_wait (...)
3305	PROTOTYPE: ;$	3422	PROTOTYPE: ;$
3306	PPCODE:	3423	PPCODE:
3307	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3424	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3308		3425
		3426	void
		3427	on_enter (SV *block)
		3428	ALIAS:
		3429	on_leave = 1
		3430	PROTOTYPE: &
		3431	CODE:
		3432	{
		3433	struct coro *coro = SvSTATE_current;
		3434	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3435
		3436	block = (SV *)coro_sv_2cv (aTHX_ block);
		3437
		3438	if (!*avp)
		3439	*avp = newAV ();
		3440
		3441	av_push (*avp, SvREFCNT_inc (block));
		3442
		3443	if (!ix)
		3444	on_enterleave_call (aTHX_ block);
		3445
		3446	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3447	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3448	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3449	}
		3450
3309		3451
3310	MODULE = Coro::State PACKAGE = PerlIO::cede	3452	MODULE = Coro::State PACKAGE = PerlIO::cede
3311		3453
3312	BOOT:	3454	BOOT:
3313	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3455	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3323	GvSTASH (CvGV (cv))	3465	GvSTASH (CvGV (cv))
3324	);	3466	);
3325	OUTPUT:	3467	OUTPUT:
3326	RETVAL	3468	RETVAL
3327		3469
3328	# helper for Coro::Channel	3470	# helper for Coro::Channel and others
3329	SV *	3471	SV *
3330	_alloc (int count)	3472	_alloc (int count)
3331	CODE:	3473	CODE:
3332	RETVAL = coro_waitarray_new (aTHX_ count);	3474	RETVAL = coro_waitarray_new (aTHX_ count);
3333	OUTPUT:	3475	OUTPUT:
…		…
3391	for (i = 1; i <= wcount; ++i)	3533	for (i = 1; i <= wcount; ++i)
3392	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3534	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3393	}	3535	}
3394	}	3536	}
3395		3537
		3538	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3539
		3540	void
		3541	_may_delete (SV *sem, int count, int extra_refs)
		3542	PPCODE:
		3543	{
		3544	AV av = (AV )SvRV (sem);
		3545
		3546	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3547	&& AvFILLp (av) == 0 /* no waiters, just count */
		3548	&& SvIV (AvARRAY (av)[0]) == count)
		3549	XSRETURN_YES;
		3550
		3551	XSRETURN_NO;
		3552	}
		3553
3396	MODULE = Coro::State PACKAGE = Coro::Signal	3554	MODULE = Coro::State PACKAGE = Coro::Signal
3397		3555
3398	SV *	3556	SV *
3399	new (SV *klass)	3557	new (SV *klass)
3400	CODE:	3558	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.327 by root, Mon Nov 24 06:07:16 2008 UTC vs. Revision 1.349 by root, Wed Jun 10 00:47:24 2009 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.327 by root, Mon Nov 24 06:07:16 2008 UTC vs.
Revision 1.349 by root, Wed Jun 10 00:47:24 2009 UTC