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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.243 by root, Sat Aug 30 03:07:46 2008 UTC

…		…
10	#include "patchlevel.h"	10	#include "patchlevel.h"
11		11
12	#include <stdio.h>	12	#include <stdio.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	# define setjmp _setjmp // deep magic, don't ask
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
15		24
16	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
17	# include <unistd.h>	26	# include <unistd.h>
18	# include <sys/mman.h>	27	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
…		…
71	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
72	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
73	# endif	82	# endif
74	#endif	83	#endif
75		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
76	/* 5.8.7 */	98	/* 5.8.7 */
77	#ifndef SvRV_set	99	#ifndef SvRV_set
78	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
79	#endif
80
81	/* 5.8.8 */
82	#ifndef GV_NOTQUAL
83	# define GV_NOTQUAL 0
84	#endif
85	#ifndef newSV
86	# define newSV(l) NEWSV(0,l)
87	#endif	101	#endif
88		102
89	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	103	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90	# undef CORO_STACKGUARD	104	# undef CORO_STACKGUARD
91	#endif	105	#endif
…		…
130	#else	144	#else
131	# define LOCK (void)0	145	# define LOCK (void)0
132	# define UNLOCK (void)0	146	# define UNLOCK (void)0
133	#endif	147	#endif
134		148
135	#define strpair(const) const, sizeof (const) - 1
136
137	/* helper storage struct for Coro::AIO */	149	/* helper storage struct for Coro::AIO */
138	struct io_state	150	struct io_state
139	{	151	{
140	int errorno;	152	int errorno;
141	I32 laststype;	153	I32 laststype;
…		…
146	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
147	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
148	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
149	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
150	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
151	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
152		164
153	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
154	static GV stdoutgv; / STDOUT /	166	static GV stdoutgv; / STDOUT /
155		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
156	static HV hv_sig; / %SIG */	169	static HV hv_sig; / %SIG */
157	static SV *sv_diehook;
158	static SV *sv_warnhook;
159		170
160	/* async_pool helper stuff */	171	/* async_pool helper stuff */
161	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
162	static SV *sv_pool_size;	173	static SV *sv_pool_size;
163	static AV *av_async_pool;	174	static AV *av_async_pool;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
164		178
165	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
166	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
167		181
168	enum {	182	enum {
…		…
221		235
222	/* process data */	236	/* process data */
223	AV *mainstack;	237	AV *mainstack;
224	perl_slots slot; / basically the saved sp */	238	perl_slots slot; / basically the saved sp */
225		239
226	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
227	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
228	int refcnt;
229	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
		243	HV hv; / the perl hash associated with this coro, if any */
230		244
231	/* statistics */	245	/* statistics */
232	int usecount; /* number of transfers to this coro */	246	int usecount; /* number of transfers to this coro */
233		247
234	/* coro process data */	248	/* coro process data */
235	int prio;	249	int prio;
236	SV *throw;	250	SV throw; / exception to be thrown */
237		251
238	/* async_pool */	252	/* async_pool */
239	SV *saved_deffh;	253	SV *saved_deffh;
240		254
241	/* linked list */	255	/* linked list */
242	struct coro next, prev;	256	struct coro next, prev;
243	HV hv; / the perl hash associated with this coro, if any */
244	};	257	};
245		258
246	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
247	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
248		261
…		…
255	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
256	#define PRIO_MIN -4	269	#define PRIO_MIN -4
257		270
258	/* for Coro.pm */	271	/* for Coro.pm */
259	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
260	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
261	static int coro_nready;	275	static int coro_nready;
262	static struct coro *coro_first;	276	static struct coro *coro_first;
263		277
264	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
265		279
266	static SV *	280	static SV *
267	coro_get_sv (const char *name, int create)	281	coro_get_sv (pTHX_ const char *name, int create)
268	{	282	{
269	#if PERL_VERSION_ATLEAST (5,9,0)	283	#if PERL_VERSION_ATLEAST (5,10,0)
270	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
271	get_sv (name, create);	285	get_sv (name, create);
272	#endif	286	#endif
273	return get_sv (name, create);	287	return get_sv (name, create);
274	}	288	}
275		289
276	static AV *	290	static AV *
277	coro_get_av (const char *name, int create)	291	coro_get_av (pTHX_ const char *name, int create)
278	{	292	{
279	#if PERL_VERSION_ATLEAST (5,9,0)	293	#if PERL_VERSION_ATLEAST (5,10,0)
280	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
281	get_av (name, create);	295	get_av (name, create);
282	#endif	296	#endif
283	return get_av (name, create);	297	return get_av (name, create);
284	}	298	}
285		299
286	static HV *	300	static HV *
287	coro_get_hv (const char *name, int create)	301	coro_get_hv (pTHX_ const char *name, int create)
288	{	302	{
289	#if PERL_VERSION_ATLEAST (5,9,0)	303	#if PERL_VERSION_ATLEAST (5,10,0)
290	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
291	get_hv (name, create);	305	get_hv (name, create);
292	#endif	306	#endif
293	return get_hv (name, create);	307	return get_hv (name, create);
294	}	308	}
…		…
299	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
300	AV newpadlist, newpad;	314	AV newpadlist, newpad;
301		315
302	newpadlist = newAV ();	316	newpadlist = newAV ();
303	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
304	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
305	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306	#else	320	#else
307	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308	#endif	322	#endif
309	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
347		361
348	/* casting is fun. */	362	/* casting is fun. */
349	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
350	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
351		365
352	SvREFCNT_dec (av);
353
354	return 0;	366	return 0;
355	}	367	}
356		368
357	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
358		371
359	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
360		376
361	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
362	SvMAGIC (cv) \	378	SvMAGIC (sv) \
363	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
364	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
365	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
366	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
367		386
368	static struct coro *	387	static struct coro *
369	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
370	{	389	{
371	HV *stash;	390	HV *stash;
…		…
383	/* very slow, but rare, check */	402	/* very slow, but rare, check */
384	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385	croak ("Coro::State object required");	404	croak ("Coro::State object required");
386	}	405	}
387		406
388	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
389	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
390	}	409	}
391		410
392	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393		412
394	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
395	static void	414	static void
396	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
397	{	416	{
398	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
399	AV *av;	418	AV *av;
400		419
401	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403	else	422	else
…		…
415	}	434	}
416		435
417	static void	436	static void
418	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
419	{	438	{
420	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
421	AV *av;	440	AV *av;
422		441
423	if (expect_false (!mg))	442	if (expect_false (!mg))
424	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
425	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
426	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
427	mg->mg_virtual = &vtbl_coro;
428	mg->mg_obj = (SV *)newAV ();
429	}
430		444
431	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
432		446
433	if (expect_false (AvFILLp (av) >= AvMAX (av)))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
434	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
…		…
500		514
501	if (expect_true (CvDEPTH (cv)))	515	if (expect_true (CvDEPTH (cv)))
502	{	516	{
503	EXTEND (SP, 3);	517	EXTEND (SP, 3);
504	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
505	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
506	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
507		521
508	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
509	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
510	}	524	}
…		…
521		535
522	PUTBACK;	536	PUTBACK;
523	}	537	}
524		538
525	/* allocate some space on the context stack for our purposes */	539	/* allocate some space on the context stack for our purposes */
		540	/* we manually unroll here, as usually 2 slots is enough */
		541	if (SLOT_COUNT >= 1) CXINC;
		542	if (SLOT_COUNT >= 2) CXINC;
		543	if (SLOT_COUNT >= 3) CXINC;
526	{	544	{
527	/* we manually unroll here, as usually 2 slots is enough */
528	int i;	545	int i;
529	if (SLOT_COUNT >= 1) CXINC;
530	if (SLOT_COUNT >= 2) CXINC;
531	if (SLOT_COUNT >= 3) CXINC;
532	for (i = 3; i < SLOT_COUNT; ++i)	546	for (i = 3; i < SLOT_COUNT; ++i)
533	CXINC;	547	CXINC;
534
535	cxstack_ix -= SLOT_COUNT; /* undo allocation */
536	}	548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
537		550
538	c->mainstack = PL_mainstack;	551	c->mainstack = PL_mainstack;
539		552
540	{	553	{
541	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
591		604
592	New(54,PL_savestack,24,ANY);	605	New(54,PL_savestack,24,ANY);
593	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
594	PL_savestack_max = 24;	607	PL_savestack_max = 24;
595		608
596	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
597	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
598	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
599	PL_retstack_max = 4;	612	PL_retstack_max = 4;
600	#endif	613	#endif
601	}	614	}
…		…
624		637
625	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
626	Safefree (PL_markstack);	639	Safefree (PL_markstack);
627	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
628	Safefree (PL_savestack);	641	Safefree (PL_savestack);
629	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
630	Safefree (PL_retstack);	643	Safefree (PL_retstack);
631	#endif	644	#endif
632	}	645	}
633		646
634	static size_t	647	static size_t
…		…
658	rss += slot->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
659	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660	rss += slot->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
661	rss += slot->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
662		675
663	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
664	rss += slot->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
665	#endif	678	#endif
666	}	679	}
667		680
668	return rss;	681	return rss;
669	}	682	}
670		683
671	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		689
		690	/* apparently < 5.8.8 */
		691	#ifndef MgPV_nolen_const
		692	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		693	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		694	(const char*)(mg)->mg_ptr)
		695	#endif
		696
		697	/*
		698	* This overrides the default magic get method of %SIG elements.
		699	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		700	* and instead of tryign to save and restore the hash elements, we just provide
		701	* readback here.
		702	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		703	* not expecting this to actually change the hook. This is a potential problem
		704	* when a schedule happens then, but we ignore this.
		705	*/
		706	static int
		707	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		708	{
		709	const char *s = MgPV_nolen_const (mg);
		710
		711	if (*s == '_')
		712	{
		713	SV **svp = 0;
		714
		715	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		716	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		717
		718	if (svp)
		719	{
		720	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		721	return 0;
		722	}
		723	}
		724
		725	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		726	}
		727
		728	static int
		729	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		730	{
		731	const char *s = MgPV_nolen_const (mg);
		732
		733	if (*s == '_')
		734	{
		735	SV **svp = 0;
		736
		737	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		738	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		739
		740	if (svp)
		741	{
		742	SV old = svp;
		743	*svp = 0;
		744	SvREFCNT_dec (old);
		745	return 0;
		746	}
		747	}
		748
		749	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		750	}
		751
		752	static int
		753	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		754	{
		755	const char *s = MgPV_nolen_const (mg);
		756
		757	if (*s == '_')
		758	{
		759	SV **svp = 0;
		760
		761	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		762	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		763
		764	if (svp)
		765	{
		766	SV old = svp;
		767	*svp = newSVsv (sv);
		768	SvREFCNT_dec (old);
		769	return 0;
		770	}
		771	}
		772
		773	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		774	}
672		775
673	static void	776	static void
674	coro_setup (pTHX_ struct coro *coro)	777	coro_setup (pTHX_ struct coro *coro)
675	{	778	{
676	/*	779	/*
…		…
685	PL_curpm = 0;	788	PL_curpm = 0;
686	PL_curpad = 0;	789	PL_curpad = 0;
687	PL_localizing = 0;	790	PL_localizing = 0;
688	PL_dirty = 0;	791	PL_dirty = 0;
689	PL_restartop = 0;	792	PL_restartop = 0;
690	SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	793	#if PERL_VERSION_ATLEAST (5,10,0)
691	SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	794	PL_parser = 0;
		795	#endif
		796
		797	/* recreate the die/warn hooks */
		798	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		799	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692		800
693	GvSV (PL_defgv) = newSV (0);	801	GvSV (PL_defgv) = newSV (0);
694	GvAV (PL_defgv) = coro->args; coro->args = 0;	802	GvAV (PL_defgv) = coro->args; coro->args = 0;
695	GvSV (PL_errgv) = newSV (0);	803	GvSV (PL_errgv) = newSV (0);
696	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	804	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
711	PL_op = (OP *)&myop;	819	PL_op = (OP *)&myop;
712	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	820	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713	SPAGAIN;	821	SPAGAIN;
714	}	822	}
715		823
716	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	824	/* this newly created coroutine might be run on an existing cctx which most
		825	* likely was suspended in set_stacklevel, called from entersub.
		826	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		827	* so we ENTER here for symmetry
		828	*/
		829	ENTER;
717	}	830	}
718		831
719	static void	832	static void
720	coro_destroy (pTHX_ struct coro *coro)	833	coro_destroy (pTHX_ struct coro *coro)
721	{	834	{
…		…
805	PUSHMARK (SP);	918	PUSHMARK (SP);
806	PUSHs (&PL_sv_no);	919	PUSHs (&PL_sv_no);
807	PUSHs (fullname);	920	PUSHs (fullname);
808	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	921	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
809	PUTBACK;	922	PUTBACK;
810	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	923	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
811	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	924	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
812	SPAGAIN;	925	SPAGAIN;
813	FREETMPS;	926	FREETMPS;
814	LEAVE;	927	LEAVE;
815	PL_runops = runops_trace;	928	PL_runops = runops_trace;
…		…
842	SAVETMPS;	955	SAVETMPS;
843	EXTEND (SP, 3);	956	EXTEND (SP, 3);
844	PUSHMARK (SP);	957	PUSHMARK (SP);
845	PUSHs (&PL_sv_yes);	958	PUSHs (&PL_sv_yes);
846	PUSHs (fullname);	959	PUSHs (fullname);
847	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	960	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
848	PUTBACK;	961	PUTBACK;
849	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	962	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
850	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	963	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
851	SPAGAIN;	964	SPAGAIN;
852	FREETMPS;	965	FREETMPS;
853	LEAVE;	966	LEAVE;
854	PL_runops = runops_trace;	967	PL_runops = runops_trace;
…		…
868	PL_runops = RUNOPS_DEFAULT;	981	PL_runops = RUNOPS_DEFAULT;
869	PUSHMARK (SP);	982	PUSHMARK (SP);
870	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	983	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
871	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	984	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
872	PUTBACK;	985	PUTBACK;
873	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	986	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
874	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	987	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
875	SPAGAIN;	988	SPAGAIN;
876	FREETMPS;	989	FREETMPS;
877	LEAVE;	990	LEAVE;
878	PL_runops = runops_trace;	991	PL_runops = runops_trace;
…		…
888		1001
889	/* inject a fake call to Coro::State::_cctx_init into the execution */	1002	/* inject a fake call to Coro::State::_cctx_init into the execution */
890	/* _cctx_init should be careful, as it could be called at almost any time */	1003	/* _cctx_init should be careful, as it could be called at almost any time */
891	/* during execution of a perl program */	1004	/* during execution of a perl program */
892	static void NOINLINE	1005	static void NOINLINE
893	prepare_cctx (pTHX_ coro_cctx *cctx)	1006	cctx_prepare (pTHX_ coro_cctx *cctx)
894	{	1007	{
895	dSP;	1008	dSP;
896	LOGOP myop;	1009	LOGOP myop;
897		1010
898	PL_top_env = &PL_start_env;	1011	PL_top_env = &PL_start_env;
…		…
916		1029
917	/*	1030	/*
918	* this is a _very_ stripped down perl interpreter ;)	1031	* this is a _very_ stripped down perl interpreter ;)
919	*/	1032	*/
920	static void	1033	static void
921	coro_run (void *arg)	1034	cctx_run (void *arg)
922	{	1035	{
923	dTHX;	1036	dTHX;
924		1037
925	/* coro_run is the alternative tail of transfer(), so unlock here. */	1038	/* cctx_run is the alternative tail of transfer(), so unlock here. */
926	UNLOCK;	1039	UNLOCK;
927		1040
928	/* we now skip the entersub that lead to transfer() */	1041	/* we now skip the entersub that lead to transfer() */
929	PL_op = PL_op->op_next;	1042	PL_op = PL_op->op_next;
930		1043
931	/* inject a fake subroutine call to cctx_init */	1044	/* inject a fake subroutine call to cctx_init */
932	prepare_cctx (aTHX_ (coro_cctx *)arg);	1045	cctx_prepare (aTHX_ (coro_cctx *)arg);
933		1046
934	/* somebody or something will hit me for both perl_run and PL_restartop */	1047	/* somebody or something will hit me for both perl_run and PL_restartop */
935	PL_restartop = PL_op;	1048	PL_restartop = PL_op;
936	perl_run (PL_curinterp);	1049	perl_run (PL_curinterp);
937		1050
…		…
956	++cctx_count;	1069	++cctx_count;
957		1070
958	Newz (0, cctx, 1, coro_cctx);	1071	Newz (0, cctx, 1, coro_cctx);
959		1072
960	#if HAVE_MMAP	1073	#if HAVE_MMAP
961
962	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1074	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
963	/* mmap supposedly does allocate-on-write for us */	1075	/* mmap supposedly does allocate-on-write for us */
964	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1076	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
965		1077
966	if (cctx->sptr != (void *)-1)	1078	if (cctx->sptr != (void *)-1)
…		…
987	stack_start = cctx->sptr;	1099	stack_start = cctx->sptr;
988	stack_size = cctx->ssize;	1100	stack_size = cctx->ssize;
989	}	1101	}
990		1102
991	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1103	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
992	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1104	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
993		1105
994	return cctx;	1106	return cctx;
995	}	1107	}
996		1108
997	static void	1109	static void
…		…
1069	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1181	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070		1182
1071	if (expect_false (next->flags & CF_DESTROYED))	1183	if (expect_false (next->flags & CF_DESTROYED))
1072	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1184	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073		1185
1074	if (
1075	#if PERL_VERSION_ATLEAST (5,9,0)	1186	#if !PERL_VERSION_ATLEAST (5,10,0)
1076	expect_false (PL_parser)
1077	#else
1078	expect_false (PL_lex_state != LEX_NOTPARSING)	1187	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1079	#endif
1080	)
1081	croak ("Coro::State::transfer called while parsing, but this is not supported");	1188	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1189	#endif
1082	}	1190	}
1083	}	1191	}
1084		1192
1085	/* always use the TRANSFER macro */	1193	/* always use the TRANSFER macro */
1086	static void NOINLINE	1194	static void NOINLINE
1087	transfer (pTHX_ struct coro prev, struct coro next)	1195	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1088	{	1196	{
1089	dSTACKLEVEL;	1197	dSTACKLEVEL;
		1198	static volatile int has_throw;
1090		1199
1091	/* sometimes transfer is only called to set idle_sp */	1200	/* sometimes transfer is only called to set idle_sp */
1092	if (expect_false (!next))	1201	if (expect_false (!next))
1093	{	1202	{
1094	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1203	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1109	prev->flags &= ~CF_RUNNING;	1218	prev->flags &= ~CF_RUNNING;
1110	next->flags \|= CF_RUNNING;	1219	next->flags \|= CF_RUNNING;
1111		1220
1112	LOCK;	1221	LOCK;
1113		1222
		1223	/* first get rid of the old state */
		1224	save_perl (aTHX_ prev);
		1225
1114	if (expect_false (next->flags & CF_NEW))	1226	if (expect_false (next->flags & CF_NEW))
1115	{	1227	{
1116	/* need to start coroutine */	1228	/* need to start coroutine */
1117	next->flags &= ~CF_NEW;	1229	next->flags &= ~CF_NEW;
1118	/* first get rid of the old state */
1119	save_perl (aTHX_ prev);
1120	/* setup coroutine call */	1230	/* setup coroutine call */
1121	coro_setup (aTHX_ next);	1231	coro_setup (aTHX_ next);
1122	}	1232	}
1123	else	1233	else
1124	{
1125	/* coroutine already started */
1126	save_perl (aTHX_ prev);
1127	load_perl (aTHX_ next);	1234	load_perl (aTHX_ next);
1128	}
1129		1235
1130	prev__cctx = prev->cctx;	1236	prev__cctx = prev->cctx;
1131		1237
1132	/* possibly "free" the cctx */	1238	/* possibly "free" the cctx */
1133	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1239	if (expect_true (
		1240	prev__cctx->idle_sp == STACKLEVEL
		1241	&& !(prev__cctx->flags & CC_TRACE)
		1242	&& !force_cctx
		1243	))
1134	{	1244	{
1135	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1245	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1136	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1246	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1137		1247
1138	prev->cctx = 0;	1248	prev->cctx = 0;
1139		1249
1140	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1250	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1141	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1251	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1142	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1252	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1253	if (!next->cctx)
1143	next->cctx = cctx_get (aTHX);	1254	next->cctx = cctx_get (aTHX);
1144		1255
1145	cctx_put (prev__cctx);	1256	cctx_put (prev__cctx);
1146	}	1257	}
1147		1258
1148	++next->usecount;	1259	++next->usecount;
1149		1260
1150	if (expect_true (!next->cctx))	1261	if (expect_true (!next->cctx))
1151	next->cctx = cctx_get (aTHX);	1262	next->cctx = cctx_get (aTHX);
		1263
		1264	has_throw = !!next->throw;
1152		1265
1153	if (expect_false (prev__cctx != next->cctx))	1266	if (expect_false (prev__cctx != next->cctx))
1154	{	1267	{
1155	prev__cctx->top_env = PL_top_env;	1268	prev__cctx->top_env = PL_top_env;
1156	PL_top_env = next->cctx->top_env;	1269	PL_top_env = next->cctx->top_env;
…		…
1158	}	1271	}
1159		1272
1160	free_coro_mortal (aTHX);	1273	free_coro_mortal (aTHX);
1161	UNLOCK;	1274	UNLOCK;
1162		1275
1163	if (expect_false (prev->throw \|\| next->throw))	1276	if (expect_false (has_throw))
1164	{	1277	{
1165	struct coro *coro = SvSTATE (coro_current);	1278	struct coro *coro = SvSTATE (coro_current);
1166		1279
1167	if (coro->throw)	1280	if (coro->throw)
1168	{	1281	{
…		…
1178	struct transfer_args	1291	struct transfer_args
1179	{	1292	{
1180	struct coro prev, next;	1293	struct coro prev, next;
1181	};	1294	};
1182		1295
1183	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1296	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1184	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1297	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1185		1298
1186	/ high level stuff ******************************************************/	1299	/ high level stuff ******************************************************/
1187		1300
1188	static int	1301	static int
…		…
1282	{	1395	{
1283	dTHX;	1396	dTHX;
1284	struct transfer_args ta;	1397	struct transfer_args ta;
1285		1398
1286	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1399	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1287	TRANSFER (ta);	1400	TRANSFER (ta, 1);
1288	}	1401	}
1289		1402
1290	/ Coro ******************************************************************/	1403	/ Coro ******************************************************************/
1291		1404
1292	static void	1405	static void
…		…
1294	{	1407	{
1295	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1408	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1296	}	1409	}
1297		1410
1298	static SV *	1411	static SV *
1299	coro_deq (pTHX_ int min_prio)	1412	coro_deq (pTHX)
1300	{	1413	{
1301	int prio = PRIO_MAX - PRIO_MIN;	1414	int prio;
1302		1415
1303	min_prio -= PRIO_MIN;
1304	if (min_prio < 0)
1305	min_prio = 0;
1306
1307	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1416	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1308	if (AvFILLp (coro_ready [prio]) >= 0)	1417	if (AvFILLp (coro_ready [prio]) >= 0)
1309	return av_shift (coro_ready [prio]);	1418	return av_shift (coro_ready [prio]);
1310		1419
1311	return 0;	1420	return 0;
1312	}	1421	}
…		…
1314	static int	1423	static int
1315	api_ready (SV *coro_sv)	1424	api_ready (SV *coro_sv)
1316	{	1425	{
1317	dTHX;	1426	dTHX;
1318	struct coro *coro;	1427	struct coro *coro;
		1428	SV *sv_hook;
		1429	void (*xs_hook)(void);
1319		1430
1320	if (SvROK (coro_sv))	1431	if (SvROK (coro_sv))
1321	coro_sv = SvRV (coro_sv);	1432	coro_sv = SvRV (coro_sv);
1322		1433
1323	coro = SvSTATE (coro_sv);	1434	coro = SvSTATE (coro_sv);
…		…
1326	return 0;	1437	return 0;
1327		1438
1328	coro->flags \|= CF_READY;	1439	coro->flags \|= CF_READY;
1329		1440
1330	LOCK;	1441	LOCK;
		1442
		1443	sv_hook = coro_nready ? 0 : coro_readyhook;
		1444	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1445
1331	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1446	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1332	++coro_nready;	1447	++coro_nready;
		1448
1333	UNLOCK;	1449	UNLOCK;
		1450
		1451	if (sv_hook)
		1452	{
		1453	dSP;
		1454
		1455	ENTER;
		1456	SAVETMPS;
		1457
		1458	PUSHMARK (SP);
		1459	PUTBACK;
		1460	call_sv (sv_hook, G_DISCARD);
		1461	SPAGAIN;
		1462
		1463	FREETMPS;
		1464	LEAVE;
		1465	}
		1466
		1467	if (xs_hook)
		1468	xs_hook ();
1334		1469
1335	return 1;	1470	return 1;
1336	}	1471	}
1337		1472
1338	static int	1473	static int
…		…
1348	SV prev_sv, next_sv;	1483	SV prev_sv, next_sv;
1349		1484
1350	for (;;)	1485	for (;;)
1351	{	1486	{
1352	LOCK;	1487	LOCK;
1353	next_sv = coro_deq (aTHX_ PRIO_MIN);	1488	next_sv = coro_deq (aTHX);
1354		1489
1355	/* nothing to schedule: call the idle handler */	1490	/* nothing to schedule: call the idle handler */
1356	if (expect_false (!next_sv))	1491	if (expect_false (!next_sv))
1357	{	1492	{
1358	dSP;	1493	dSP;
…		…
1362	SAVETMPS;	1497	SAVETMPS;
1363		1498
1364	PUSHMARK (SP);	1499	PUSHMARK (SP);
1365	PUTBACK;	1500	PUTBACK;
1366	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1501	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1502	SPAGAIN;
1367		1503
1368	FREETMPS;	1504	FREETMPS;
1369	LEAVE;	1505	LEAVE;
1370	continue;	1506	continue;
1371	}	1507	}
…		…
1426	{	1562	{
1427	dTHX;	1563	dTHX;
1428	struct transfer_args ta;	1564	struct transfer_args ta;
1429		1565
1430	prepare_schedule (aTHX_ &ta);	1566	prepare_schedule (aTHX_ &ta);
1431	TRANSFER (ta);	1567	TRANSFER (ta, 1);
1432	}	1568	}
1433		1569
1434	static int	1570	static int
1435	api_cede (void)	1571	api_cede (void)
1436	{	1572	{
…		…
1439		1575
1440	prepare_cede (aTHX_ &ta);	1576	prepare_cede (aTHX_ &ta);
1441		1577
1442	if (expect_true (ta.prev != ta.next))	1578	if (expect_true (ta.prev != ta.next))
1443	{	1579	{
1444	TRANSFER (ta);	1580	TRANSFER (ta, 1);
1445	return 1;	1581	return 1;
1446	}	1582	}
1447	else	1583	else
1448	return 0;	1584	return 0;
1449	}	1585	}
…		…
1454	dTHX;	1590	dTHX;
1455	struct transfer_args ta;	1591	struct transfer_args ta;
1456		1592
1457	if (prepare_cede_notself (aTHX_ &ta))	1593	if (prepare_cede_notself (aTHX_ &ta))
1458	{	1594	{
1459	TRANSFER (ta);	1595	TRANSFER (ta, 1);
1460	return 1;	1596	return 1;
1461	}	1597	}
1462	else	1598	else
1463	return 0;	1599	return 0;
1464	}	1600	}
…		…
1487	else	1623	else
1488	coro->slot->runops = RUNOPS_DEFAULT;	1624	coro->slot->runops = RUNOPS_DEFAULT;
1489	}	1625	}
1490	}	1626	}
1491		1627
		1628	static int
		1629	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1630	{
		1631	AV *padlist;
		1632	AV av = (AV )mg->mg_obj;
		1633
		1634	abort ();
		1635
		1636	return 0;
		1637	}
		1638
		1639	static MGVTBL coro_gensub_vtbl = {
		1640	0, 0, 0, 0,
		1641	coro_gensub_free
		1642	};
		1643
1492	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1644	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1493		1645
1494	PROTOTYPES: DISABLE	1646	PROTOTYPES: DISABLE
1495		1647
1496	BOOT:	1648	BOOT:
…		…
1501	BOOT_PAGESIZE;	1653	BOOT_PAGESIZE;
1502		1654
1503	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1655	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1504	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1656	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1505		1657
		1658	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1659	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1660	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1661
1506	hv_sig = coro_get_hv ("SIG", TRUE);	1662	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1507	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1663	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1508	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1664	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1509
1510	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1511	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1512		1665
1513	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1666	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1514		1667
1515	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1668	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1516	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1669	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1521	main_top_env = PL_top_env;	1674	main_top_env = PL_top_env;
1522		1675
1523	while (main_top_env->je_prev)	1676	while (main_top_env->je_prev)
1524	main_top_env = main_top_env->je_prev;	1677	main_top_env = main_top_env->je_prev;
1525		1678
1526	coroapi.ver = CORO_API_VERSION;	1679	coroapi.ver = CORO_API_VERSION;
		1680	coroapi.rev = CORO_API_REVISION;
1527	coroapi.transfer = api_transfer;	1681	coroapi.transfer = api_transfer;
1528		1682
1529	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1683	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1530	}	1684	}
1531		1685
1532	SV *	1686	SV *
1533	new (char *klass, ...)	1687	new (char *klass, ...)
1534	CODE:	1688	CODE:
1535	{	1689	{
1536	struct coro *coro;	1690	struct coro *coro;
		1691	MAGIC *mg;
1537	HV *hv;	1692	HV *hv;
1538	int i;	1693	int i;
1539		1694
1540	Newz (0, coro, 1, struct coro);	1695	Newz (0, coro, 1, struct coro);
1541	coro->args = newAV ();	1696	coro->args = newAV ();
…		…
1544	if (coro_first) coro_first->prev = coro;	1699	if (coro_first) coro_first->prev = coro;
1545	coro->next = coro_first;	1700	coro->next = coro_first;
1546	coro_first = coro;	1701	coro_first = coro;
1547		1702
1548	coro->hv = hv = newHV ();	1703	coro->hv = hv = newHV ();
1549	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1704	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1705	mg->mg_flags \|= MGf_DUP;
1550	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1706	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1551		1707
1552	av_extend (coro->args, items - 1);	1708	av_extend (coro->args, items - 1);
1553	for (i = 1; i < items; i++)	1709	for (i = 1; i < items; i++)
1554	av_push (coro->args, newSVsv (ST (i)));	1710	av_push (coro->args, newSVsv (ST (i)));
…		…
1568	Coro::cede_notself = 4	1724	Coro::cede_notself = 4
1569	CODE:	1725	CODE:
1570	{	1726	{
1571	struct transfer_args ta;	1727	struct transfer_args ta;
1572		1728
		1729	PUTBACK;
1573	switch (ix)	1730	switch (ix)
1574	{	1731	{
1575	case 0:	1732	case 0:
1576	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1733	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1577	ta.next = 0;	1734	ta.next = 0;
…		…
1596	if (!prepare_cede_notself (aTHX_ &ta))	1753	if (!prepare_cede_notself (aTHX_ &ta))
1597	XSRETURN_EMPTY;	1754	XSRETURN_EMPTY;
1598		1755
1599	break;	1756	break;
1600	}	1757	}
		1758	SPAGAIN;
1601		1759
1602	BARRIER;	1760	BARRIER;
		1761	PUTBACK;
1603	TRANSFER (ta);	1762	TRANSFER (ta, 0);
1604		1763	SPAGAIN; /* might be the sp of a different coroutine now */
1605	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1764	/* be extra careful not to ever do anything after TRANSFER */
1606	XSRETURN_YES;
1607	}	1765	}
1608		1766
1609	bool	1767	bool
1610	_destroy (SV *coro_sv)	1768	_destroy (SV *coro_sv)
1611	CODE:	1769	CODE:
1612	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1770	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1613	OUTPUT:	1771	OUTPUT:
1614	RETVAL	1772	RETVAL
1615		1773
1616	void	1774	void
1617	_exit (code)	1775	_exit (int code)
1618	int code
1619	PROTOTYPE: $	1776	PROTOTYPE: $
1620	CODE:	1777	CODE:
1621	_exit (code);	1778	_exit (code);
1622		1779
1623	int	1780	int
…		…
1663	{	1820	{
1664	struct coro temp;	1821	struct coro temp;
1665		1822
1666	if (!(coro->flags & CF_RUNNING))	1823	if (!(coro->flags & CF_RUNNING))
1667	{	1824	{
		1825	PUTBACK;
1668	save_perl (aTHX_ &temp);	1826	save_perl (aTHX_ &temp);
1669	load_perl (aTHX_ coro);	1827	load_perl (aTHX_ coro);
1670	}	1828	}
1671		1829
1672	{	1830	{
1673	dSP;	1831	dSP;
1674	ENTER;	1832	ENTER;
1675	SAVETMPS;	1833	SAVETMPS;
		1834	PUTBACK;
		1835	PUSHSTACK;
1676	PUSHMARK (SP);	1836	PUSHMARK (SP);
1677	PUTBACK;
1678		1837
1679	if (ix)	1838	if (ix)
1680	eval_sv (coderef, 0);	1839	eval_sv (coderef, 0);
1681	else	1840	else
1682	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1841	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1683		1842
		1843	POPSTACK;
1684	SPAGAIN;	1844	SPAGAIN;
1685	FREETMPS;	1845	FREETMPS;
1686	LEAVE;	1846	LEAVE;
1687	PUTBACK;	1847	PUTBACK;
1688	}	1848	}
1689		1849
1690	if (!(coro->flags & CF_RUNNING))	1850	if (!(coro->flags & CF_RUNNING))
1691	{	1851	{
1692	save_perl (aTHX_ coro);	1852	save_perl (aTHX_ coro);
1693	load_perl (aTHX_ &temp);	1853	load_perl (aTHX_ &temp);
		1854	SPAGAIN;
1694	}	1855	}
1695	}	1856	}
1696	}	1857	}
1697		1858
1698	SV *	1859	SV *
…		…
1710		1871
1711	void	1872	void
1712	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1873	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1713		1874
1714	SV *	1875	SV *
1715	has_stack (Coro::State coro)	1876	has_cctx (Coro::State coro)
1716	PROTOTYPE: $	1877	PROTOTYPE: $
1717	CODE:	1878	CODE:
1718	RETVAL = boolSV (!!coro->cctx);	1879	RETVAL = boolSV (!!coro->cctx);
1719	OUTPUT:	1880	OUTPUT:
1720	RETVAL	1881	RETVAL
…		…
1739	case 1: RETVAL = coro->usecount; break;	1900	case 1: RETVAL = coro->usecount; break;
1740	}	1901	}
1741	OUTPUT:	1902	OUTPUT:
1742	RETVAL	1903	RETVAL
1743		1904
		1905	void
		1906	force_cctx ()
		1907	CODE:
		1908	struct coro *coro = SvSTATE (coro_current);
		1909	coro->cctx->idle_sp = 0;
		1910
		1911	void
		1912	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1913	PROTOTYPE: $;$
		1914	CODE:
		1915	SvREFCNT_dec (self->throw);
		1916	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1917
		1918	void
		1919	swap_defsv (Coro::State self)
		1920	PROTOTYPE: $
		1921	ALIAS:
		1922	swap_defav = 1
		1923	CODE:
		1924	if (!self->slot)
		1925	croak ("cannot swap state with coroutine that has no saved state");
		1926	else
		1927	{
		1928	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1929	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1930
		1931	SV tmp = src; src = dst; *dst = tmp;
		1932	}
1744		1933
1745	MODULE = Coro::State PACKAGE = Coro	1934	MODULE = Coro::State PACKAGE = Coro
1746		1935
1747	BOOT:	1936	BOOT:
1748	{	1937	{
1749	int i;	1938	int i;
1750		1939
1751	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1752	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1753	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	1940	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1941	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1942	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1754		1943
1755	coro_current = coro_get_sv ("Coro::current", FALSE);	1944	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1756	SvREADONLY_on (coro_current);	1945	SvREADONLY_on (coro_current);
1757		1946
1758	coro_stash = gv_stashpv ("Coro", TRUE);	1947	coro_stash = gv_stashpv ("Coro", TRUE);
1759		1948
1760	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1949	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1790	PROTOTYPE: $	1979	PROTOTYPE: $
1791	CODE:	1980	CODE:
1792	SvREFCNT_dec (SvRV (coro_current));	1981	SvREFCNT_dec (SvRV (coro_current));
1793	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1982	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1794		1983
		1984	void
		1985	_set_readyhook (SV *hook)
		1986	PROTOTYPE: $
		1987	CODE:
		1988	LOCK;
		1989	SvREFCNT_dec (coro_readyhook);
		1990	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1991	UNLOCK;
		1992
1795	int	1993	int
1796	prio (Coro::State coro, int newprio = 0)	1994	prio (Coro::State coro, int newprio = 0)
1797	ALIAS:	1995	ALIAS:
1798	nice = 1	1996	nice = 1
1799	CODE:	1997	CODE:
…		…
1828	CODE:	2026	CODE:
1829	RETVAL = coro_nready;	2027	RETVAL = coro_nready;
1830	OUTPUT:	2028	OUTPUT:
1831	RETVAL	2029	RETVAL
1832		2030
1833	void
1834	throw (Coro::State self, SV *throw = &PL_sv_undef)
1835	PROTOTYPE: $;$
1836	CODE:
1837	SvREFCNT_dec (self->throw);
1838	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1839
1840	# for async_pool speedup	2031	# for async_pool speedup
1841	void	2032	void
1842	_pool_1 (SV *cb)	2033	_pool_1 (SV *cb)
1843	CODE:	2034	CODE:
1844	{	2035	{
1845	struct coro *coro = SvSTATE (coro_current);	2036	struct coro *coro = SvSTATE (coro_current);
1846	HV hv = (HV )SvRV (coro_current);	2037	HV hv = (HV )SvRV (coro_current);
1847	AV *defav = GvAV (PL_defgv);	2038	AV *defav = GvAV (PL_defgv);
1848	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2039	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1849	AV *invoke_av;	2040	AV *invoke_av;
1850	int i, len;	2041	int i, len;
1851		2042
1852	if (!invoke)	2043	if (!invoke)
		2044	{
		2045	SV *old = PL_diehook;
		2046	PL_diehook = 0;
		2047	SvREFCNT_dec (old);
1853	croak ("\3async_pool terminate\2\n");	2048	croak ("\3async_pool terminate\2\n");
		2049	}
1854		2050
1855	SvREFCNT_dec (coro->saved_deffh);	2051	SvREFCNT_dec (coro->saved_deffh);
1856	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2052	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1857		2053
1858	hv_store (hv, "desc", sizeof ("desc") - 1,	2054	hv_store (hv, "desc", sizeof ("desc") - 1,
1859	newSVpvn (strpair ("[async_pool]")), 0);	2055	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1860		2056
1861	invoke_av = (AV *)SvRV (invoke);	2057	invoke_av = (AV *)SvRV (invoke);
1862	len = av_len (invoke_av);	2058	len = av_len (invoke_av);
1863		2059
1864	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2060	sv_setsv (cb, AvARRAY (invoke_av)[0]);
…		…
1884	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2080	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1885	coro->saved_deffh = 0;	2081	coro->saved_deffh = 0;
1886		2082
1887	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2083	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1888	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2084	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2085	{
		2086	SV *old = PL_diehook;
		2087	PL_diehook = 0;
		2088	SvREFCNT_dec (old);
1889	croak ("\3async_pool terminate\2\n");	2089	croak ("\3async_pool terminate\2\n");
		2090	}
1890		2091
1891	av_clear (GvAV (PL_defgv));	2092	av_clear (GvAV (PL_defgv));
1892	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2093	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1893	newSVpvn (strpair ("[async_pool idle]")), 0);	2094	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1894		2095
1895	coro->prio = 0;	2096	coro->prio = 0;
1896		2097
1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2098	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1898	api_trace (coro_current, 0);	2099	api_trace (coro_current, 0);
1899		2100
1900	av_push (av_async_pool, newSVsv (coro_current));	2101	av_push (av_async_pool, newSVsv (coro_current));
1901	}	2102	}
		2103
		2104	#if 0
		2105
		2106	void
		2107	_generator_call (...)
		2108	PROTOTYPE: @
		2109	PPCODE:
		2110	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2111	xxxx
		2112	abort ();
		2113
		2114	SV *
		2115	gensub (SV *sub, ...)
		2116	PROTOTYPE: &;@
		2117	CODE:
		2118	{
		2119	struct coro *coro;
		2120	MAGIC *mg;
		2121	CV *xcv;
		2122	CV ncv = (CV )newSV_type (SVt_PVCV);
		2123	int i;
		2124
		2125	CvGV (ncv) = CvGV (cv);
		2126	CvFILE (ncv) = CvFILE (cv);
		2127
		2128	Newz (0, coro, 1, struct coro);
		2129	coro->args = newAV ();
		2130	coro->flags = CF_NEW;
		2131
		2132	av_extend (coro->args, items - 1);
		2133	for (i = 1; i < items; i++)
		2134	av_push (coro->args, newSVsv (ST (i)));
		2135
		2136	CvISXSUB_on (ncv);
		2137	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2138
		2139	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2140
		2141	CvXSUB (ncv) = CvXSUB (xcv);
		2142	CvANON_on (ncv);
		2143
		2144	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2145	RETVAL = newRV_noinc ((SV *)ncv);
		2146	}
		2147	OUTPUT:
		2148	RETVAL
		2149
		2150	#endif
1902		2151
1903		2152
1904	MODULE = Coro::State PACKAGE = Coro::AIO	2153	MODULE = Coro::State PACKAGE = Coro::AIO
1905		2154
1906	SV *	2155	SV *
…		…
1933	PL_laststype = data->laststype;	2182	PL_laststype = data->laststype;
1934	PL_laststatval = data->laststatval;	2183	PL_laststatval = data->laststatval;
1935	PL_statcache = data->statcache;	2184	PL_statcache = data->statcache;
1936	}	2185	}
1937		2186
		2187
		2188	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2189
		2190	BOOT:
		2191	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2192
		2193	SV *
		2194	_schedule (...)
		2195	PROTOTYPE: @
		2196	CODE:
		2197	{
		2198	static int incede;
		2199
		2200	api_cede_notself ();
		2201
		2202	++incede;
		2203	while (coro_nready >= incede && api_cede ())
		2204	;
		2205
		2206	sv_setsv (sv_activity, &PL_sv_undef);
		2207	if (coro_nready >= incede)
		2208	{
		2209	PUSHMARK (SP);
		2210	PUTBACK;
		2211	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2212	SPAGAIN;
		2213	}
		2214
		2215	--incede;
		2216	}
		2217

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Comparing Coro/Coro/State.xs (file contents): Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs. Revision 1.243 by root, Sat Aug 30 03:07:46 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.200 by root, Sun Oct 7 15:08:23 2007 UTC vs.
Revision 1.243 by root, Sat Aug 30 03:07:46 2008 UTC