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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.209 by root, Wed Oct 10 02:58:17 2007 UTC vs.
Revision 1.240 by root, Sun Jun 29 00:28:17 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
15	#include <inttypes.h> /* portable stdint.h */	22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
16		24
17	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
18	# include <unistd.h>	26	# include <unistd.h>
19	# include <sys/mman.h>	27	# include <sys/mman.h>
20	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
…		…
72	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
73	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
74	# endif	82	# endif
75	#endif	83	#endif
76		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
77	/* 5.8.7 */	98	/* 5.8.7 */
78	#ifndef SvRV_set	99	#ifndef SvRV_set
79	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
80	#endif
81
82	/* 5.8.8 */
83	#ifndef GV_NOTQUAL
84	# define GV_NOTQUAL 0
85	#endif
86	#ifndef newSV
87	# define newSV(l) NEWSV(0,l)
88	#endif	101	#endif
89		102
90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	103	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
91	# undef CORO_STACKGUARD	104	# undef CORO_STACKGUARD
92	#endif	105	#endif
…		…
131	#else	144	#else
132	# define LOCK (void)0	145	# define LOCK (void)0
133	# define UNLOCK (void)0	146	# define UNLOCK (void)0
134	#endif	147	#endif
135		148
136	#define strpair(const) const, sizeof (const) - 1
137
138	/* helper storage struct for Coro::AIO */	149	/* helper storage struct for Coro::AIO */
139	struct io_state	150	struct io_state
140	{	151	{
141	int errorno;	152	int errorno;
142	I32 laststype;	153	I32 laststype;
…		…
147	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
148	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
149	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
150	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
151	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
152	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
153		164
154	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
155	static GV stdoutgv; / STDOUT /	166	static GV stdoutgv; / STDOUT /
156		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
157	static HV hv_sig; / %SIG */	169	static HV hv_sig; / %SIG */
158	static SV *sv_diehook;
159	static SV *sv_warnhook;
160		170
161	/* async_pool helper stuff */	171	/* async_pool helper stuff */
162	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
163	static SV *sv_pool_size;	173	static SV *sv_pool_size;
164	static AV *av_async_pool;	174	static AV *av_async_pool;
165		175
166	static struct coro_cctx cctx_first[3]; / index by GIMME_V type, void, scalar, array */	176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
		178
		179	static struct coro_cctx *cctx_first;
167	static int cctx_count, cctx_idle[3];	180	static int cctx_count, cctx_idle;
168		181
169	enum {	182	enum {
170	CC_MAPPED = 0x01,	183	CC_MAPPED = 0x01,
171	CC_NOREUSE = 0x02, /* throw this away after tracing */	184	CC_NOREUSE = 0x02, /* throw this away after tracing */
172	CC_TRACE = 0x04,	185	CC_TRACE = 0x04,
…		…
217		230
218	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
219	struct coro {	232	struct coro {
220	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
221	coro_cctx *cctx;	234	coro_cctx *cctx;
222	int gimme;
223		235
224	/* process data */	236	/* process data */
225	AV *mainstack;	237	AV *mainstack;
226	perl_slots slot; / basically the saved sp */	238	perl_slots slot; / basically the saved sp */
227		239
…		…
256	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
257	#define PRIO_MIN -4	269	#define PRIO_MIN -4
258		270
259	/* for Coro.pm */	271	/* for Coro.pm */
260	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
261	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
262	static int coro_nready;	275	static int coro_nready;
263	static struct coro *coro_first;	276	static struct coro *coro_first;
264		277
265	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
266		279
267	static SV *	280	static SV *
268	coro_get_sv (const char *name, int create)	281	coro_get_sv (pTHX_ const char *name, int create)
269	{	282	{
270	#if PERL_VERSION_ATLEAST (5,9,0)	283	#if PERL_VERSION_ATLEAST (5,10,0)
271	/* 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 */
272	get_sv (name, create);	285	get_sv (name, create);
273	#endif	286	#endif
274	return get_sv (name, create);	287	return get_sv (name, create);
275	}	288	}
276		289
277	static AV *	290	static AV *
278	coro_get_av (const char *name, int create)	291	coro_get_av (pTHX_ const char *name, int create)
279	{	292	{
280	#if PERL_VERSION_ATLEAST (5,9,0)	293	#if PERL_VERSION_ATLEAST (5,10,0)
281	/* 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 */
282	get_av (name, create);	295	get_av (name, create);
283	#endif	296	#endif
284	return get_av (name, create);	297	return get_av (name, create);
285	}	298	}
286		299
287	static HV *	300	static HV *
288	coro_get_hv (const char *name, int create)	301	coro_get_hv (pTHX_ const char *name, int create)
289	{	302	{
290	#if PERL_VERSION_ATLEAST (5,9,0)	303	#if PERL_VERSION_ATLEAST (5,10,0)
291	/* 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 */
292	get_hv (name, create);	305	get_hv (name, create);
293	#endif	306	#endif
294	return get_hv (name, create);	307	return get_hv (name, create);
295	}	308	}
…		…
300	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
301	AV newpadlist, newpad;	314	AV newpadlist, newpad;
302		315
303	newpadlist = newAV ();	316	newpadlist = newAV ();
304	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
305	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
306	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
307	#else	320	#else
308	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
309	#endif	322	#endif
310	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
348		361
349	/* casting is fun. */	362	/* casting is fun. */
350	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
351	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
352		365
353	SvREFCNT_dec (av);
354
355	return 0;	366	return 0;
356	}	367	}
357		368
358	#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
359		371
360	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	};
361		376
362	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
363	SvMAGIC (cv) \	378	SvMAGIC (sv) \
364	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
365	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
366	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
367	: 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)
368		386
369	static struct coro *	387	static struct coro *
370	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
371	{	389	{
372	HV *stash;	390	HV *stash;
…		…
384	/* very slow, but rare, check */	402	/* very slow, but rare, check */
385	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
386	croak ("Coro::State object required");	404	croak ("Coro::State object required");
387	}	405	}
388		406
389	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
390	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
391	}	409	}
392		410
393	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
394		412
395	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
396	static void	414	static void
397	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
398	{	416	{
399	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
400	AV *av;	418	AV *av;
401		419
402	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
403	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
404	else	422	else
…		…
416	}	434	}
417		435
418	static void	436	static void
419	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
420	{	438	{
421	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
422	AV *av;	440	AV *av;
423		441
424	if (expect_false (!mg))	442	if (expect_false (!mg))
425	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
426	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
427	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
428	mg->mg_virtual = &vtbl_coro;
429	mg->mg_obj = (SV *)newAV ();
430	}
431		444
432	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
433		446
434	if (expect_false (AvFILLp (av) >= AvMAX (av)))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
435	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
…		…
453	GvSV (irsgv) = slot->irsgv;	466	GvSV (irsgv) = slot->irsgv;
454		467
455	#define VAR(name,type) PL_ ## name = slot->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
456	# include "state.h"	469	# include "state.h"
457	#undef VAR	470	#undef VAR
458
459	/hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);/
460	/hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);/
461		471
462	{	472	{
463	dSP;	473	dSP;
464		474
465	CV *cv;	475	CV *cv;
…		…
504		514
505	if (expect_true (CvDEPTH (cv)))	515	if (expect_true (CvDEPTH (cv)))
506	{	516	{
507	EXTEND (SP, 3);	517	EXTEND (SP, 3);
508	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
509	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
510	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
511		521
512	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
513	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
514	}	524	}
…		…
594		604
595	New(54,PL_savestack,24,ANY);	605	New(54,PL_savestack,24,ANY);
596	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
597	PL_savestack_max = 24;	607	PL_savestack_max = 24;
598		608
599	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
600	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
601	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
602	PL_retstack_max = 4;	612	PL_retstack_max = 4;
603	#endif	613	#endif
604	}	614	}
…		…
627		637
628	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
629	Safefree (PL_markstack);	639	Safefree (PL_markstack);
630	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
631	Safefree (PL_savestack);	641	Safefree (PL_savestack);
632	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
633	Safefree (PL_retstack);	643	Safefree (PL_retstack);
634	#endif	644	#endif
635	}	645	}
636		646
637	static size_t	647	static size_t
…		…
661	rss += slot->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
662	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
663	rss += slot->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
664	rss += slot->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
665		675
666	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
667	rss += slot->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
668	#endif	678	#endif
669	}	679	}
670		680
671	return rss;	681	return rss;
672	}	682	}
673		683
674	/ 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	#undef MgPV_nolen_const
		692	#ifndef MgPV_nolen_const
		693	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		694	SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
		695	(const char*)(mg)->mg_ptr)
		696	#endif
		697
		698	/*
		699	* This overrides the default magic get method of %SIG elements.
		700	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		701	* and instead of tryign to save and restore the hash elements, we just provide
		702	* readback here.
		703	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		704	* not expecting this to actually change the hook. This is a potential problem
		705	* when a schedule happens then, but we ignore this.
		706	*/
		707	static int
		708	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		709	{
		710	const char *s = MgPV_nolen_const (mg);
		711
		712	if (*s == '_')
		713	{
		714	SV **svp = 0;
		715
		716	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		717	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		718
		719	if (svp)
		720	{
		721	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		722	return 0;
		723	}
		724	}
		725
		726	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		727	}
		728
		729	static int
		730	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		731	{
		732	const char *s = MgPV_nolen_const (mg);
		733
		734	if (*s == '_')
		735	{
		736	SV **svp = 0;
		737
		738	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		739	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		740
		741	if (svp)
		742	{
		743	SV old = svp;
		744	*svp = 0;
		745	SvREFCNT_dec (old);
		746	return 0;
		747	}
		748	}
		749
		750	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		751	}
		752
		753	static int
		754	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		755	{
		756	const char *s = MgPV_nolen_const (mg);
		757
		758	if (*s == '_')
		759	{
		760	SV **svp = 0;
		761
		762	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		763	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		764
		765	if (svp)
		766	{
		767	SV old = svp;
		768	*svp = newSVsv (sv);
		769	SvREFCNT_dec (old);
		770	return 0;
		771	}
		772	}
		773
		774	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		775	}
675		776
676	static void	777	static void
677	coro_setup (pTHX_ struct coro *coro)	778	coro_setup (pTHX_ struct coro *coro)
678	{	779	{
679	/*	780	/*
…		…
688	PL_curpm = 0;	789	PL_curpm = 0;
689	PL_curpad = 0;	790	PL_curpad = 0;
690	PL_localizing = 0;	791	PL_localizing = 0;
691	PL_dirty = 0;	792	PL_dirty = 0;
692	PL_restartop = 0;	793	PL_restartop = 0;
693	PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);	794	#if PERL_VERSION_ATLEAST (5,10,0)
694	PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);	795	PL_parser = 0;
		796	#endif
		797
		798	/* recreate the die/warn hooks */
		799	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		800	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
695		801
696	GvSV (PL_defgv) = newSV (0);	802	GvSV (PL_defgv) = newSV (0);
697	GvAV (PL_defgv) = coro->args; coro->args = 0;	803	GvAV (PL_defgv) = coro->args; coro->args = 0;
698	GvSV (PL_errgv) = newSV (0);	804	GvSV (PL_errgv) = newSV (0);
699	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	805	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
712	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	818	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
713	PUTBACK;	819	PUTBACK;
714	PL_op = (OP *)&myop;	820	PL_op = (OP *)&myop;
715	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	821	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
716	SPAGAIN;	822	SPAGAIN;
717
718	/*
719	* now its very tricky. the "tail" of the next transfer might end up
720	* either in a new cctx, or an existing one.
721	* in case of an existing one we have to take care of whatever
722	* entersub and transfer do to the perl stack.
723	*/
724	ENTER;
725	EXTEND (SP, 4);
726	PUSHs ((SV )0); / items */
727	PUSHs ((SV )0); / ix, set_stacklevel */
728	PUSHs ((SV )(sp - PL_stack_base + 1)); / ax */
729	PUSHs ((SV )0); / again */
730	PUTBACK;
731	}	823	}
		824
		825	/* this newly created coroutine might be run on an existing cctx which most
		826	* likely was suspended in set_stacklevel, called from entersub.
		827	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		828	* so we ENTER here for symmetry
		829	*/
		830	ENTER;
732	}	831	}
733		832
734	static void	833	static void
735	coro_destroy (pTHX_ struct coro *coro)	834	coro_destroy (pTHX_ struct coro *coro)
736	{	835	{
…		…
820	PUSHMARK (SP);	919	PUSHMARK (SP);
821	PUSHs (&PL_sv_no);	920	PUSHs (&PL_sv_no);
822	PUSHs (fullname);	921	PUSHs (fullname);
823	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));	922	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
824	PUTBACK;	923	PUTBACK;
825	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	924	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
826	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	925	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
827	SPAGAIN;	926	SPAGAIN;
828	FREETMPS;	927	FREETMPS;
829	LEAVE;	928	LEAVE;
830	PL_runops = runops_trace;	929	PL_runops = runops_trace;
…		…
857	SAVETMPS;	956	SAVETMPS;
858	EXTEND (SP, 3);	957	EXTEND (SP, 3);
859	PUSHMARK (SP);	958	PUSHMARK (SP);
860	PUSHs (&PL_sv_yes);	959	PUSHs (&PL_sv_yes);
861	PUSHs (fullname);	960	PUSHs (fullname);
862	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	961	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
863	PUTBACK;	962	PUTBACK;
864	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);	963	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
865	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	964	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
866	SPAGAIN;	965	SPAGAIN;
867	FREETMPS;	966	FREETMPS;
868	LEAVE;	967	LEAVE;
869	PL_runops = runops_trace;	968	PL_runops = runops_trace;
…		…
883	PL_runops = RUNOPS_DEFAULT;	982	PL_runops = RUNOPS_DEFAULT;
884	PUSHMARK (SP);	983	PUSHMARK (SP);
885	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));	984	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
886	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));	985	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
887	PUTBACK;	986	PUTBACK;
888	cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);	987	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
889	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	988	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
890	SPAGAIN;	989	SPAGAIN;
891	FREETMPS;	990	FREETMPS;
892	LEAVE;	991	LEAVE;
893	PL_runops = runops_trace;	992	PL_runops = runops_trace;
…		…
1032		1131
1033	/* wether this cctx should be destructed */	1132	/* wether this cctx should be destructed */
1034	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))	1133	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
1035		1134
1036	static coro_cctx *	1135	static coro_cctx *
1037	cctx_get (pTHX_ int gimme)	1136	cctx_get (pTHX)
1038	{	1137	{
1039	while (expect_true (cctx_first[gimme]))	1138	while (expect_true (cctx_first))
1040	{	1139	{
1041	coro_cctx *cctx = cctx_first[gimme];	1140	coro_cctx *cctx = cctx_first;
1042	cctx_first[gimme] = cctx->next;	1141	cctx_first = cctx->next;
1043	--cctx_idle[gimme];	1142	--cctx_idle;
1044		1143
1045	if (expect_true (!CCTX_EXPIRED (cctx)))	1144	if (expect_true (!CCTX_EXPIRED (cctx)))
1046	return cctx;	1145	return cctx;
1047		1146
1048	cctx_destroy (cctx);	1147	cctx_destroy (cctx);
1049	}	1148	}
1050		1149
1051	assert (!gimme);
1052	return cctx_new ();	1150	return cctx_new ();
1053	}	1151	}
1054		1152
1055	static void	1153	static void
1056	cctx_put (coro_cctx *cctx, int gimme)	1154	cctx_put (coro_cctx *cctx)
1057	{	1155	{
1058	/* free another cctx if overlimit */	1156	/* free another cctx if overlimit */
1059	if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX))	1157	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
1060	{	1158	{
1061	coro_cctx *first = cctx_first[gimme];	1159	coro_cctx *first = cctx_first;
1062	cctx_first[gimme] = first->next;	1160	cctx_first = first->next;
1063	--cctx_idle[gimme];	1161	--cctx_idle;
1064		1162
1065	cctx_destroy (first);	1163	cctx_destroy (first);
1066	}	1164	}
1067		1165
1068	++cctx_idle[gimme];	1166	++cctx_idle;
1069	cctx->next = cctx_first[gimme];	1167	cctx->next = cctx_first;
1070	cctx_first[gimme] = cctx;	1168	cctx_first = cctx;
1071	}	1169	}
1072		1170
1073	/ coroutine switching ***************************************************/	1171	/ coroutine switching ***************************************************/
1074		1172
1075	static void	1173	static void
…		…
1084	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1182	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1085		1183
1086	if (expect_false (next->flags & CF_DESTROYED))	1184	if (expect_false (next->flags & CF_DESTROYED))
1087	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1185	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1088		1186
1089	if (
1090	#if PERL_VERSION_ATLEAST (5,9,0)	1187	#if !PERL_VERSION_ATLEAST (5,10,0)
1091	expect_false (PL_parser)
1092	#else
1093	expect_false (PL_lex_state != LEX_NOTPARSING)	1188	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1094	#endif
1095	)
1096	croak ("Coro::State::transfer called while parsing, but this is not supported");	1189	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1190	#endif
1097	}	1191	}
1098	}	1192	}
1099		1193
1100	/* always use the TRANSFER macro */	1194	/* always use the TRANSFER macro */
1101	static void NOINLINE	1195	static void NOINLINE
1102	transfer (pTHX_ struct coro prev, struct coro next)	1196	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1103	{	1197	{
1104	dSTACKLEVEL;	1198	dSTACKLEVEL;
		1199	static volatile int has_throw;
1105		1200
1106	/* sometimes transfer is only called to set idle_sp */	1201	/* sometimes transfer is only called to set idle_sp */
1107	if (expect_false (!next))	1202	if (expect_false (!next))
1108	{	1203	{
1109	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1204	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1124	prev->flags &= ~CF_RUNNING;	1219	prev->flags &= ~CF_RUNNING;
1125	next->flags \|= CF_RUNNING;	1220	next->flags \|= CF_RUNNING;
1126		1221
1127	LOCK;	1222	LOCK;
1128		1223
		1224	/* first get rid of the old state */
		1225	save_perl (aTHX_ prev);
		1226
1129	if (expect_false (next->flags & CF_NEW))	1227	if (expect_false (next->flags & CF_NEW))
1130	{	1228	{
1131	/* need to start coroutine */	1229	/* need to start coroutine */
1132	next->flags &= ~CF_NEW;	1230	next->flags &= ~CF_NEW;
1133	/* first get rid of the old state */
1134	save_perl (aTHX_ prev);
1135	/* setup coroutine call */	1231	/* setup coroutine call */
1136	coro_setup (aTHX_ next);	1232	coro_setup (aTHX_ next);
1137	}	1233	}
1138	else	1234	else
1139	{
1140	/* coroutine already started */
1141	save_perl (aTHX_ prev);
1142	load_perl (aTHX_ next);	1235	load_perl (aTHX_ next);
1143	}
1144		1236
1145	prev__cctx = prev->cctx;	1237	prev__cctx = prev->cctx;
1146		1238
1147	/* possibly "free" the cctx */	1239	/* possibly "free" the cctx */
1148	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1240	if (expect_true (
		1241	prev__cctx->idle_sp == STACKLEVEL
		1242	&& !(prev__cctx->flags & CC_TRACE)
		1243	&& !force_cctx
		1244	))
1149	{	1245	{
1150	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1246	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1151	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1247	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1152		1248
1153	prev->cctx = 0;	1249	prev->cctx = 0;
1154		1250
1155	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1251	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1156	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1252	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1157	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1253	if (expect_false (CCTX_EXPIRED (prev__cctx)))
1158	if (!next->cctx)	1254	if (!next->cctx)
1159	next->cctx = cctx_get (aTHX_ next->gimme);	1255	next->cctx = cctx_get (aTHX);
1160		1256
1161	cctx_put (prev__cctx, prev->gimme);	1257	cctx_put (prev__cctx);
1162	}	1258	}
1163		1259
1164	++next->usecount;	1260	++next->usecount;
1165		1261
1166	if (expect_true (!next->cctx))	1262	if (expect_true (!next->cctx))
1167	next->cctx = cctx_get (aTHX_ next->gimme);	1263	next->cctx = cctx_get (aTHX);
		1264
		1265	has_throw = !!next->throw;
1168		1266
1169	if (expect_false (prev__cctx != next->cctx))	1267	if (expect_false (prev__cctx != next->cctx))
1170	{	1268	{
1171	prev__cctx->top_env = PL_top_env;	1269	prev__cctx->top_env = PL_top_env;
1172	PL_top_env = next->cctx->top_env;	1270	PL_top_env = next->cctx->top_env;
…		…
1174	}	1272	}
1175		1273
1176	free_coro_mortal (aTHX);	1274	free_coro_mortal (aTHX);
1177	UNLOCK;	1275	UNLOCK;
1178		1276
1179	if (expect_false (prev->throw \|\| next->throw))	1277	if (expect_false (has_throw))
1180	{	1278	{
1181	struct coro *coro = SvSTATE (coro_current);	1279	struct coro *coro = SvSTATE (coro_current);
1182		1280
1183	if (coro->throw)	1281	if (coro->throw)
1184	{	1282	{
…		…
1194	struct transfer_args	1292	struct transfer_args
1195	{	1293	{
1196	struct coro prev, next;	1294	struct coro prev, next;
1197	};	1295	};
1198		1296
1199	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1297	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1200	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1298	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1201		1299
1202	/ high level stuff ******************************************************/	1300	/ high level stuff ******************************************************/
1203		1301
1204	static int	1302	static int
…		…
1298	{	1396	{
1299	dTHX;	1397	dTHX;
1300	struct transfer_args ta;	1398	struct transfer_args ta;
1301		1399
1302	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1400	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1303	TRANSFER (ta);	1401	TRANSFER (ta, 1);
1304	}	1402	}
1305		1403
1306	/ Coro ******************************************************************/	1404	/ Coro ******************************************************************/
1307		1405
1308	static void	1406	static void
…		…
1310	{	1408	{
1311	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1409	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1312	}	1410	}
1313		1411
1314	static SV *	1412	static SV *
1315	coro_deq (pTHX_ int min_prio)	1413	coro_deq (pTHX)
1316	{	1414	{
1317	int prio = PRIO_MAX - PRIO_MIN;	1415	int prio;
1318		1416
1319	min_prio -= PRIO_MIN;
1320	if (min_prio < 0)
1321	min_prio = 0;
1322
1323	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1417	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1324	if (AvFILLp (coro_ready [prio]) >= 0)	1418	if (AvFILLp (coro_ready [prio]) >= 0)
1325	return av_shift (coro_ready [prio]);	1419	return av_shift (coro_ready [prio]);
1326		1420
1327	return 0;	1421	return 0;
1328	}	1422	}
…		…
1330	static int	1424	static int
1331	api_ready (SV *coro_sv)	1425	api_ready (SV *coro_sv)
1332	{	1426	{
1333	dTHX;	1427	dTHX;
1334	struct coro *coro;	1428	struct coro *coro;
		1429	SV *sv_hook;
		1430	void (*xs_hook)(void);
1335		1431
1336	if (SvROK (coro_sv))	1432	if (SvROK (coro_sv))
1337	coro_sv = SvRV (coro_sv);	1433	coro_sv = SvRV (coro_sv);
1338		1434
1339	coro = SvSTATE (coro_sv);	1435	coro = SvSTATE (coro_sv);
…		…
1342	return 0;	1438	return 0;
1343		1439
1344	coro->flags \|= CF_READY;	1440	coro->flags \|= CF_READY;
1345		1441
1346	LOCK;	1442	LOCK;
		1443
		1444	sv_hook = coro_nready ? 0 : coro_readyhook;
		1445	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1446
1347	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1447	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1348	++coro_nready;	1448	++coro_nready;
		1449
1349	UNLOCK;	1450	UNLOCK;
		1451
		1452	if (sv_hook)
		1453	{
		1454	dSP;
		1455
		1456	ENTER;
		1457	SAVETMPS;
		1458
		1459	PUSHMARK (SP);
		1460	PUTBACK;
		1461	call_sv (sv_hook, G_DISCARD);
		1462	SPAGAIN;
		1463
		1464	FREETMPS;
		1465	LEAVE;
		1466	}
		1467
		1468	if (xs_hook)
		1469	xs_hook ();
1350		1470
1351	return 1;	1471	return 1;
1352	}	1472	}
1353		1473
1354	static int	1474	static int
…		…
1364	SV prev_sv, next_sv;	1484	SV prev_sv, next_sv;
1365		1485
1366	for (;;)	1486	for (;;)
1367	{	1487	{
1368	LOCK;	1488	LOCK;
1369	next_sv = coro_deq (aTHX_ PRIO_MIN);	1489	next_sv = coro_deq (aTHX);
1370		1490
1371	/* nothing to schedule: call the idle handler */	1491	/* nothing to schedule: call the idle handler */
1372	if (expect_false (!next_sv))	1492	if (expect_false (!next_sv))
1373	{	1493	{
1374	dSP;	1494	dSP;
…		…
1378	SAVETMPS;	1498	SAVETMPS;
1379		1499
1380	PUSHMARK (SP);	1500	PUSHMARK (SP);
1381	PUTBACK;	1501	PUTBACK;
1382	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1502	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1503	SPAGAIN;
1383		1504
1384	FREETMPS;	1505	FREETMPS;
1385	LEAVE;	1506	LEAVE;
1386	continue;	1507	continue;
1387	}	1508	}
…		…
1442	{	1563	{
1443	dTHX;	1564	dTHX;
1444	struct transfer_args ta;	1565	struct transfer_args ta;
1445		1566
1446	prepare_schedule (aTHX_ &ta);	1567	prepare_schedule (aTHX_ &ta);
1447	TRANSFER (ta);	1568	TRANSFER (ta, 1);
1448	}	1569	}
1449		1570
1450	static int	1571	static int
1451	api_cede (void)	1572	api_cede (void)
1452	{	1573	{
…		…
1455		1576
1456	prepare_cede (aTHX_ &ta);	1577	prepare_cede (aTHX_ &ta);
1457		1578
1458	if (expect_true (ta.prev != ta.next))	1579	if (expect_true (ta.prev != ta.next))
1459	{	1580	{
1460	TRANSFER (ta);	1581	TRANSFER (ta, 1);
1461	return 1;	1582	return 1;
1462	}	1583	}
1463	else	1584	else
1464	return 0;	1585	return 0;
1465	}	1586	}
…		…
1470	dTHX;	1591	dTHX;
1471	struct transfer_args ta;	1592	struct transfer_args ta;
1472		1593
1473	if (prepare_cede_notself (aTHX_ &ta))	1594	if (prepare_cede_notself (aTHX_ &ta))
1474	{	1595	{
1475	TRANSFER (ta);	1596	TRANSFER (ta, 1);
1476	return 1;	1597	return 1;
1477	}	1598	}
1478	else	1599	else
1479	return 0;	1600	return 0;
1480	}	1601	}
…		…
1517	BOOT_PAGESIZE;	1638	BOOT_PAGESIZE;
1518		1639
1519	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1640	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1520	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1641	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1521		1642
		1643	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1644	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1645	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1646
1522	hv_sig = coro_get_hv ("SIG", TRUE);	1647	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1523	sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);	1648	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1524	sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);	1649	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1525
1526	if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1527	if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1528		1650
1529	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1651	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1530		1652
1531	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1653	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1532	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1654	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1537	main_top_env = PL_top_env;	1659	main_top_env = PL_top_env;
1538		1660
1539	while (main_top_env->je_prev)	1661	while (main_top_env->je_prev)
1540	main_top_env = main_top_env->je_prev;	1662	main_top_env = main_top_env->je_prev;
1541		1663
1542	coroapi.ver = CORO_API_VERSION;	1664	coroapi.ver = CORO_API_VERSION;
		1665	coroapi.rev = CORO_API_REVISION;
1543	coroapi.transfer = api_transfer;	1666	coroapi.transfer = api_transfer;
1544		1667
1545	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1668	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1546	}	1669	}
1547		1670
1548	SV *	1671	SV *
1549	new (char *klass, ...)	1672	new (char *klass, ...)
1550	CODE:	1673	CODE:
1551	{	1674	{
1552	struct coro *coro;	1675	struct coro *coro;
		1676	MAGIC *mg;
1553	HV *hv;	1677	HV *hv;
1554	int i;	1678	int i;
1555		1679
1556	Newz (0, coro, 1, struct coro);	1680	Newz (0, coro, 1, struct coro);
1557	coro->args = newAV ();	1681	coro->args = newAV ();
…		…
1560	if (coro_first) coro_first->prev = coro;	1684	if (coro_first) coro_first->prev = coro;
1561	coro->next = coro_first;	1685	coro->next = coro_first;
1562	coro_first = coro;	1686	coro_first = coro;
1563		1687
1564	coro->hv = hv = newHV ();	1688	coro->hv = hv = newHV ();
1565	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1689	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1690	mg->mg_flags \|= MGf_DUP;
1566	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1691	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1567		1692
1568	av_extend (coro->args, items - 1);	1693	av_extend (coro->args, items - 1);
1569	for (i = 1; i < items; i++)	1694	for (i = 1; i < items; i++)
1570	av_push (coro->args, newSVsv (ST (i)));	1695	av_push (coro->args, newSVsv (ST (i)));
…		…
1576	# function to increase chances that they all will call transfer with the same	1701	# function to increase chances that they all will call transfer with the same
1577	# stack offset	1702	# stack offset
1578	void	1703	void
1579	_set_stacklevel (...)	1704	_set_stacklevel (...)
1580	ALIAS:	1705	ALIAS:
1581	Coro::State::transfer = 1	1706	Coro::State::transfer = 1
1582	Coro::schedule = 2	1707	Coro::schedule = 2
1583	Coro::cede = 3	1708	Coro::cede = 3
1584	Coro::cede_notself = 4	1709	Coro::cede_notself = 4
1585	Coro::Event::next = 5
1586	Coro::Event::next_cancel = 6
1587	PPCODE:	1710	CODE:
1588	{	1711	{
1589	struct transfer_args ta;	1712	struct transfer_args ta;
1590	int again = 0;
1591		1713
1592	do	1714	PUTBACK;
		1715	switch (ix)
1593	{	1716	{
1594	switch (ix)
1595	{
1596	case 0:	1717	case 0:
1597	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1718	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1598	ta.next = 0;	1719	ta.next = 0;
1599	break;	1720	break;
1600		1721
1601	case 1:	1722	case 1:
1602	if (items != 2)	1723	if (items != 2)
1603	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1724	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1604		1725
1605	prepare_transfer (aTHX_ &ta, ST(0), ST(1));	1726	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1606	break;	1727	break;
1607		1728
1608	case 2:	1729	case 2:
1609	prepare_schedule (aTHX_ &ta);	1730	prepare_schedule (aTHX_ &ta);
1610	break;	1731	break;
1611		1732
1612	case 3:	1733	case 3:
1613	prepare_cede (aTHX_ &ta);	1734	prepare_cede (aTHX_ &ta);
1614	break;	1735	break;
1615		1736
1616	case 4:	1737	case 4:
1617	if (!prepare_cede_notself (aTHX_ &ta))	1738	if (!prepare_cede_notself (aTHX_ &ta))
1618	XSRETURN_EMPTY;	1739	XSRETURN_EMPTY;
1619		1740
1620	break;	1741	break;
1621
1622	case 5:
1623	case 6:
1624	if (items != 1)
1625	croak ("Coro::Event::next (watcher) expects one argument, not %d", items);
1626
1627	{
1628	SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID);
1629
1630	if (ev)
1631	{
1632	if (GIMME_V != G_VOID)
1633	{
1634	XPUSHs (ev);
1635	XSRETURN (1);
1636	}
1637	else
1638	XSRETURN_EMPTY;
1639	}
1640	}
1641
1642	prepare_schedule (aTHX_ &ta);
1643	again = 1;
1644	break;
1645	}
1646
1647	/* our caller, entersub, caches only this value */
1648	ta.prev->gimme = GIMME_V == G_VOID ? 0
1649	: GIMME_V == G_SCALAR ? 1
1650	: 2;
1651
1652	/* we need to save all local variables, as we might execute a different coroutine when transfer returns */
1653	sp += 2; /* save args */
1654	EXTEND (SP, 4);
1655	PUSHs ((SV *)(intptr_t)items);
1656	PUSHs ((SV *)(intptr_t)ix);
1657	PUSHs ((SV *)(intptr_t)ax);
1658	PUSHs ((SV *)(intptr_t)again);
1659	PUTBACK;
1660	BARRIER;
1661	TRANSFER (ta);
1662	BARRIER;
1663	SPAGAIN;
1664	again = (intptr_t)POPs;
1665	ax = (intptr_t)POPs;
1666	ix = (intptr_t)POPs;
1667	items = (intptr_t)POPs;
1668	sp -= 2; /* restore args */
1669	}	1742	}
1670	while (again);	1743	SPAGAIN;
1671		1744
1672	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1745	BARRIER;
1673	XSRETURN_YES;	1746	PUTBACK;
1674		1747	TRANSFER (ta, 0);
1675	XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */	1748	SPAGAIN; /* might be the sp of a different coroutine now */
		1749	/* be extra careful not to ever do anything after TRANSFER */
1676	}	1750	}
1677		1751
1678	bool	1752	bool
1679	_destroy (SV *coro_sv)	1753	_destroy (SV *coro_sv)
1680	CODE:	1754	CODE:
1681	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1755	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1682	OUTPUT:	1756	OUTPUT:
1683	RETVAL	1757	RETVAL
1684		1758
1685	void	1759	void
1686	_exit (code)	1760	_exit (int code)
1687	int code
1688	PROTOTYPE: $	1761	PROTOTYPE: $
1689	CODE:	1762	CODE:
1690	_exit (code);	1763	_exit (code);
1691		1764
1692	int	1765	int
…		…
1706	RETVAL	1779	RETVAL
1707		1780
1708	int	1781	int
1709	cctx_idle ()	1782	cctx_idle ()
1710	CODE:	1783	CODE:
1711	RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2];	1784	RETVAL = cctx_idle;
1712	OUTPUT:	1785	OUTPUT:
1713	RETVAL	1786	RETVAL
1714		1787
1715	void	1788	void
1716	list ()	1789	list ()
…		…
1732	{	1805	{
1733	struct coro temp;	1806	struct coro temp;
1734		1807
1735	if (!(coro->flags & CF_RUNNING))	1808	if (!(coro->flags & CF_RUNNING))
1736	{	1809	{
		1810	PUTBACK;
1737	save_perl (aTHX_ &temp);	1811	save_perl (aTHX_ &temp);
1738	load_perl (aTHX_ coro);	1812	load_perl (aTHX_ coro);
1739	}	1813	}
1740		1814
1741	{	1815	{
…		…
1750	eval_sv (coderef, 0);	1824	eval_sv (coderef, 0);
1751	else	1825	else
1752	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1826	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1753		1827
1754	POPSTACK;	1828	POPSTACK;
		1829	SPAGAIN;
1755	FREETMPS;	1830	FREETMPS;
1756	LEAVE;	1831	LEAVE;
		1832	PUTBACK;
1757	}	1833	}
1758		1834
1759	if (!(coro->flags & CF_RUNNING))	1835	if (!(coro->flags & CF_RUNNING))
1760	{	1836	{
1761	save_perl (aTHX_ coro);	1837	save_perl (aTHX_ coro);
1762	load_perl (aTHX_ &temp);	1838	load_perl (aTHX_ &temp);
		1839	SPAGAIN;
1763	}	1840	}
1764	}	1841	}
1765	}	1842	}
1766		1843
1767	SV *	1844	SV *
…		…
1779		1856
1780	void	1857	void
1781	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1858	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1782		1859
1783	SV *	1860	SV *
1784	has_stack (Coro::State coro)	1861	has_cctx (Coro::State coro)
1785	PROTOTYPE: $	1862	PROTOTYPE: $
1786	CODE:	1863	CODE:
1787	RETVAL = boolSV (!!coro->cctx);	1864	RETVAL = boolSV (!!coro->cctx);
1788	OUTPUT:	1865	OUTPUT:
1789	RETVAL	1866	RETVAL
…		…
1808	case 1: RETVAL = coro->usecount; break;	1885	case 1: RETVAL = coro->usecount; break;
1809	}	1886	}
1810	OUTPUT:	1887	OUTPUT:
1811	RETVAL	1888	RETVAL
1812		1889
		1890	void
		1891	force_cctx ()
		1892	CODE:
		1893	struct coro *coro = SvSTATE (coro_current);
		1894	coro->cctx->idle_sp = 0;
1813		1895
1814	MODULE = Coro::State PACKAGE = Coro	1896	MODULE = Coro::State PACKAGE = Coro
1815		1897
1816	BOOT:	1898	BOOT:
1817	{	1899	{
1818	int i;	1900	int i;
1819		1901
1820	sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1821	sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1822	av_async_pool = coro_get_av ("Coro::async_pool", TRUE);	1902	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1903	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1904	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1823		1905
1824	coro_current = coro_get_sv ("Coro::current", FALSE);	1906	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1825	SvREADONLY_on (coro_current);	1907	SvREADONLY_on (coro_current);
1826		1908
1827	coro_stash = gv_stashpv ("Coro", TRUE);	1909	coro_stash = gv_stashpv ("Coro", TRUE);
1828		1910
1829	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1911	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1859	PROTOTYPE: $	1941	PROTOTYPE: $
1860	CODE:	1942	CODE:
1861	SvREFCNT_dec (SvRV (coro_current));	1943	SvREFCNT_dec (SvRV (coro_current));
1862	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1944	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1863		1945
		1946	void
		1947	_set_readyhook (SV *hook)
		1948	PROTOTYPE: $
		1949	CODE:
		1950	LOCK;
		1951	SvREFCNT_dec (coro_readyhook);
		1952	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1953	UNLOCK;
		1954
1864	int	1955	int
1865	prio (Coro::State coro, int newprio = 0)	1956	prio (Coro::State coro, int newprio = 0)
1866	ALIAS:	1957	ALIAS:
1867	nice = 1	1958	nice = 1
1868	CODE:	1959	CODE:
…		…
1904	PROTOTYPE: $;$	1995	PROTOTYPE: $;$
1905	CODE:	1996	CODE:
1906	SvREFCNT_dec (self->throw);	1997	SvREFCNT_dec (self->throw);
1907	self->throw = SvOK (throw) ? newSVsv (throw) : 0;	1998	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1908		1999
		2000	void
		2001	swap_defsv (Coro::State self)
		2002	PROTOTYPE: $
		2003	ALIAS:
		2004	swap_defav = 1
		2005	CODE:
		2006	if (!self->slot)
		2007	croak ("cannot swap state with coroutine that has no saved state");
		2008	else
		2009	{
		2010	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		2011	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		2012
		2013	SV tmp = src; src = dst; *dst = tmp;
		2014	}
		2015
1909	# for async_pool speedup	2016	# for async_pool speedup
1910	void	2017	void
1911	_pool_1 (SV *cb)	2018	_pool_1 (SV *cb)
1912	CODE:	2019	CODE:
1913	{	2020	{
1914	struct coro *coro = SvSTATE (coro_current);	2021	struct coro *coro = SvSTATE (coro_current);
1915	HV hv = (HV )SvRV (coro_current);	2022	HV hv = (HV )SvRV (coro_current);
1916	AV *defav = GvAV (PL_defgv);	2023	AV *defav = GvAV (PL_defgv);
1917	SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);	2024	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1918	AV *invoke_av;	2025	AV *invoke_av;
1919	int i, len;	2026	int i, len;
1920		2027
1921	if (!invoke)	2028	if (!invoke)
		2029	{
		2030	SV *old = PL_diehook;
		2031	PL_diehook = 0;
		2032	SvREFCNT_dec (old);
1922	croak ("\3async_pool terminate\2\n");	2033	croak ("\3async_pool terminate\2\n");
		2034	}
1923		2035
1924	SvREFCNT_dec (coro->saved_deffh);	2036	SvREFCNT_dec (coro->saved_deffh);
1925	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2037	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1926		2038
1927	hv_store (hv, "desc", sizeof ("desc") - 1,	2039	hv_store (hv, "desc", sizeof ("desc") - 1,
1928	newSVpvn (strpair ("[async_pool]")), 0);	2040	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1929		2041
1930	invoke_av = (AV *)SvRV (invoke);	2042	invoke_av = (AV *)SvRV (invoke);
1931	len = av_len (invoke_av);	2043	len = av_len (invoke_av);
1932		2044
1933	sv_setsv (cb, AvARRAY (invoke_av)[0]);	2045	sv_setsv (cb, AvARRAY (invoke_av)[0]);
…		…
1953	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2065	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1954	coro->saved_deffh = 0;	2066	coro->saved_deffh = 0;
1955		2067
1956	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2068	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1957	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2069	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2070	{
		2071	SV *old = PL_diehook;
		2072	PL_diehook = 0;
		2073	SvREFCNT_dec (old);
1958	croak ("\3async_pool terminate\2\n");	2074	croak ("\3async_pool terminate\2\n");
		2075	}
1959		2076
1960	av_clear (GvAV (PL_defgv));	2077	av_clear (GvAV (PL_defgv));
1961	hv_store ((HV *)SvRV (coro_current), strpair ("desc"),	2078	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1962	newSVpvn (strpair ("[async_pool idle]")), 0);	2079	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1963		2080
1964	coro->prio = 0;	2081	coro->prio = 0;
1965		2082
1966	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2083	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1967	api_trace (coro_current, 0);	2084	api_trace (coro_current, 0);
…		…
2002	PL_laststype = data->laststype;	2119	PL_laststype = data->laststype;
2003	PL_laststatval = data->laststatval;	2120	PL_laststatval = data->laststatval;
2004	PL_statcache = data->statcache;	2121	PL_statcache = data->statcache;
2005	}	2122	}
2006		2123
		2124
		2125	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2126
		2127	BOOT:
		2128	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2129
		2130	SV *
		2131	_schedule (...)
		2132	PROTOTYPE: @
		2133	CODE:
		2134	{
		2135	static int incede;
		2136
		2137	api_cede_notself ();
		2138
		2139	++incede;
		2140	while (coro_nready >= incede && api_cede ())
		2141	;
		2142
		2143	sv_setsv (sv_activity, &PL_sv_undef);
		2144	if (coro_nready >= incede)
		2145	{
		2146	PUSHMARK (SP);
		2147	PUTBACK;
		2148	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2149	SPAGAIN;
		2150	}
		2151
		2152	--incede;
		2153	}
		2154

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Comparing Coro/Coro/State.xs (file contents): Revision 1.209 by root, Wed Oct 10 02:58:17 2007 UTC vs. Revision 1.240 by root, Sun Jun 29 00:28:17 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.209 by root, Wed Oct 10 02:58:17 2007 UTC vs.
Revision 1.240 by root, Sun Jun 29 00:28:17 2008 UTC