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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.244 by root, Sun Sep 21 18:29:39 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
…		…
144	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
145	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
146	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
147	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
148	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
149	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
150		164
151	static GV irsgv; / $/ */	165	static GV irsgv; / $/ */
152	static GV stdoutgv; / STDOUT /	166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
153		170
154	/* async_pool helper stuff */	171	/* async_pool helper stuff */
155	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
156	static SV *sv_pool_size;	173	static SV *sv_pool_size;
157	static AV *av_async_pool;	174	static AV *av_async_pool;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
158		178
159	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
160	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
161		181
162	enum {	182	enum {
…		…
215		235
216	/* process data */	236	/* process data */
217	AV *mainstack;	237	AV *mainstack;
218	perl_slots slot; / basically the saved sp */	238	perl_slots slot; / basically the saved sp */
219		239
220	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
221	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
222	int refcnt;
223	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
		243	HV hv; / the perl hash associated with this coro, if any */
224		244
225	/* statistics */	245	/* statistics */
226	int usecount; /* number of transfers to this coro */	246	int usecount; /* number of transfers to this coro */
227		247
228	/* coro process data */	248	/* coro process data */
229	int prio;	249	int prio;
230	SV *throw;	250	SV throw; / exception to be thrown */
231		251
232	/* async_pool */	252	/* async_pool */
233	SV *saved_deffh;	253	SV *saved_deffh;
234		254
235	/* linked list */	255	/* linked list */
236	struct coro next, prev;	256	struct coro next, prev;
237	HV hv; / the perl hash associated with this coro, if any */
238	};	257	};
239		258
240	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
241	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
242		261
…		…
249	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
250	#define PRIO_MIN -4	269	#define PRIO_MIN -4
251		270
252	/* for Coro.pm */	271	/* for Coro.pm */
253	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
254	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
255	static int coro_nready;	275	static int coro_nready;
256	static struct coro *coro_first;	276	static struct coro *coro_first;
257		277
258	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
259		279
		280	static SV *
		281	coro_get_sv (pTHX_ const char *name, int create)
		282	{
		283	#if PERL_VERSION_ATLEAST (5,10,0)
		284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		285	get_sv (name, create);
		286	#endif
		287	return get_sv (name, create);
		288	}
		289
		290	static AV *
		291	coro_get_av (pTHX_ const char *name, int create)
		292	{
		293	#if PERL_VERSION_ATLEAST (5,10,0)
		294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		295	get_av (name, create);
		296	#endif
		297	return get_av (name, create);
		298	}
		299
		300	static HV *
		301	coro_get_hv (pTHX_ const char *name, int create)
		302	{
		303	#if PERL_VERSION_ATLEAST (5,10,0)
		304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		305	get_hv (name, create);
		306	#endif
		307	return get_hv (name, create);
		308	}
		309
260	static AV *	310	static AV *
261	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
262	{	312	{
263	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
264	AV newpadlist, newpad;	314	AV newpadlist, newpad;
265		315
266	newpadlist = newAV ();	316	newpadlist = newAV ();
267	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
268	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
269	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
270	#else	320	#else
271	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
272	#endif	322	#endif
273	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
316	SvREFCNT_dec (av);	366	SvREFCNT_dec (av);
317		367
318	return 0;	368	return 0;
319	}	369	}
320		370
321	#define PERL_MAGIC_coro PERL_MAGIC_ext	371	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		372	#define CORO_MAGIC_type_state PERL_MAGIC_ext
322		373
323	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	374	static MGVTBL coro_cv_vtbl = {
		375	0, 0, 0, 0,
		376	coro_cv_free
		377	};
324		378
325	#define CORO_MAGIC(cv) \	379	#define CORO_MAGIC(sv,type) \
326	SvMAGIC (cv) \	380	SvMAGIC (sv) \
327	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	381	? SvMAGIC (sv)->mg_type == type \
328	? SvMAGIC (cv) \	382	? SvMAGIC (sv) \
329	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	383	: mg_find (sv, type) \
330	: 0	384	: 0
		385
		386	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		387	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
331		388
332	static struct coro *	389	static struct coro *
333	SvSTATE_ (pTHX_ SV *coro)	390	SvSTATE_ (pTHX_ SV *coro)
334	{	391	{
335	HV *stash;	392	HV *stash;
…		…
347	/* very slow, but rare, check */	404	/* very slow, but rare, check */
348	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	405	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
349	croak ("Coro::State object required");	406	croak ("Coro::State object required");
350	}	407	}
351		408
352	mg = CORO_MAGIC (coro);	409	mg = CORO_MAGIC_state (coro);
353	return (struct coro *)mg->mg_ptr;	410	return (struct coro *)mg->mg_ptr;
354	}	411	}
355		412
356	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	413	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
357		414
358	/* the next two functions merely cache the padlists */	415	/* the next two functions merely cache the padlists */
359	static void	416	static void
360	get_padlist (pTHX_ CV *cv)	417	get_padlist (pTHX_ CV *cv)
361	{	418	{
362	MAGIC *mg = CORO_MAGIC (cv);	419	MAGIC *mg = CORO_MAGIC_cv (cv);
363	AV *av;	420	AV *av;
364		421
365	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	422	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
366	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	423	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
367	else	424	else
368	{	425	{
369	#if CORO_PREFER_PERL_FUNCTIONS	426	#if CORO_PREFER_PERL_FUNCTIONS
370	/* this is probably cleaner, but also slower? */	427	/* this is probably cleaner? but also slower! */
		428	/* in practise, it seems to be less stable */
371	CV *cp = Perl_cv_clone (cv);	429	CV *cp = Perl_cv_clone (cv);
372	CvPADLIST (cv) = CvPADLIST (cp);	430	CvPADLIST (cv) = CvPADLIST (cp);
373	CvPADLIST (cp) = 0;	431	CvPADLIST (cp) = 0;
374	SvREFCNT_dec (cp);	432	SvREFCNT_dec (cp);
375	#else	433	#else
…		…
379	}	437	}
380		438
381	static void	439	static void
382	put_padlist (pTHX_ CV *cv)	440	put_padlist (pTHX_ CV *cv)
383	{	441	{
384	MAGIC *mg = CORO_MAGIC (cv);	442	MAGIC *mg = CORO_MAGIC_cv (cv);
385	AV *av;	443	AV *av;
386		444
387	if (expect_false (!mg))	445	if (expect_false (!mg))
388	{	446	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
389	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
390	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
391	mg->mg_virtual = &vtbl_coro;
392	mg->mg_obj = (SV *)newAV ();
393	}
394		447
395	av = (AV *)mg->mg_obj;	448	av = (AV *)mg->mg_obj;
396		449
397	if (expect_false (AvFILLp (av) >= AvMAX (av)))	450	if (expect_false (AvFILLp (av) >= AvMAX (av)))
398	av_extend (av, AvMAX (av) + 1);	451	av_extend (av, AvMAX (av) + 1);
…		…
464		517
465	if (expect_true (CvDEPTH (cv)))	518	if (expect_true (CvDEPTH (cv)))
466	{	519	{
467	EXTEND (SP, 3);	520	EXTEND (SP, 3);
468	PUSHs ((SV *)CvPADLIST (cv));	521	PUSHs ((SV *)CvPADLIST (cv));
469	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	522	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
470	PUSHs ((SV *)cv);	523	PUSHs ((SV *)cv);
471		524
472	CvDEPTH (cv) = 0;	525	CvDEPTH (cv) = 0;
473	get_padlist (aTHX_ cv);	526	get_padlist (aTHX_ cv);
474	}	527	}
…		…
485		538
486	PUTBACK;	539	PUTBACK;
487	}	540	}
488		541
489	/* allocate some space on the context stack for our purposes */	542	/* allocate some space on the context stack for our purposes */
		543	/* we manually unroll here, as usually 2 slots is enough */
		544	if (SLOT_COUNT >= 1) CXINC;
		545	if (SLOT_COUNT >= 2) CXINC;
		546	if (SLOT_COUNT >= 3) CXINC;
490	{	547	{
491	/* we manually unroll here, as usually 2 slots is enough */
492	int i;	548	int i;
493	if (SLOT_COUNT >= 1) CXINC;
494	if (SLOT_COUNT >= 2) CXINC;
495	if (SLOT_COUNT >= 3) CXINC;
496	for (i = 3; i < SLOT_COUNT; ++i)	549	for (i = 3; i < SLOT_COUNT; ++i)
497	CXINC;	550	CXINC;
498
499	cxstack_ix -= SLOT_COUNT; /* undo allocation */
500	}	551	}
		552	cxstack_ix -= SLOT_COUNT; /* undo allocation */
501		553
502	c->mainstack = PL_mainstack;	554	c->mainstack = PL_mainstack;
503		555
504	{	556	{
505	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	557	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
555		607
556	New(54,PL_savestack,24,ANY);	608	New(54,PL_savestack,24,ANY);
557	PL_savestack_ix = 0;	609	PL_savestack_ix = 0;
558	PL_savestack_max = 24;	610	PL_savestack_max = 24;
559		611
560	#if !PERL_VERSION_ATLEAST (5,9,0)	612	#if !PERL_VERSION_ATLEAST (5,10,0)
561	New(54,PL_retstack,4,OP*);	613	New(54,PL_retstack,4,OP*);
562	PL_retstack_ix = 0;	614	PL_retstack_ix = 0;
563	PL_retstack_max = 4;	615	PL_retstack_max = 4;
564	#endif	616	#endif
565	}	617	}
…		…
588		640
589	Safefree (PL_tmps_stack);	641	Safefree (PL_tmps_stack);
590	Safefree (PL_markstack);	642	Safefree (PL_markstack);
591	Safefree (PL_scopestack);	643	Safefree (PL_scopestack);
592	Safefree (PL_savestack);	644	Safefree (PL_savestack);
593	#if !PERL_VERSION_ATLEAST (5,9,0)	645	#if !PERL_VERSION_ATLEAST (5,10,0)
594	Safefree (PL_retstack);	646	Safefree (PL_retstack);
595	#endif	647	#endif
596	}	648	}
597		649
598	static size_t	650	static size_t
…		…
622	rss += slot->tmps_max * sizeof (SV *);	674	rss += slot->tmps_max * sizeof (SV *);
623	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	675	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
624	rss += slot->scopestack_max * sizeof (I32);	676	rss += slot->scopestack_max * sizeof (I32);
625	rss += slot->savestack_max * sizeof (ANY);	677	rss += slot->savestack_max * sizeof (ANY);
626		678
627	#if !PERL_VERSION_ATLEAST (5,9,0)	679	#if !PERL_VERSION_ATLEAST (5,10,0)
628	rss += slot->retstack_max * sizeof (OP *);	680	rss += slot->retstack_max * sizeof (OP *);
629	#endif	681	#endif
630	}	682	}
631		683
632	return rss;	684	return rss;
633	}	685	}
634		686
635	/ coroutine stack handling **********************************************/	687	/ coroutine stack handling **********************************************/
		688
		689	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		690	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		691	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		692
		693	/* apparently < 5.8.8 */
		694	#ifndef MgPV_nolen_const
		695	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		696	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		697	(const char*)(mg)->mg_ptr)
		698	#endif
		699
		700	/*
		701	* This overrides the default magic get method of %SIG elements.
		702	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		703	* and instead of tryign to save and restore the hash elements, we just provide
		704	* readback here.
		705	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		706	* not expecting this to actually change the hook. This is a potential problem
		707	* when a schedule happens then, but we ignore this.
		708	*/
		709	static int
		710	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		711	{
		712	const char *s = MgPV_nolen_const (mg);
		713
		714	if (*s == '_')
		715	{
		716	SV **svp = 0;
		717
		718	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		719	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		720
		721	if (svp)
		722	{
		723	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		724	return 0;
		725	}
		726	}
		727
		728	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		729	}
		730
		731	static int
		732	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		733	{
		734	const char *s = MgPV_nolen_const (mg);
		735
		736	if (*s == '_')
		737	{
		738	SV **svp = 0;
		739
		740	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		741	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		742
		743	if (svp)
		744	{
		745	SV old = svp;
		746	*svp = 0;
		747	SvREFCNT_dec (old);
		748	return 0;
		749	}
		750	}
		751
		752	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		753	}
		754
		755	static int
		756	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		757	{
		758	const char *s = MgPV_nolen_const (mg);
		759
		760	if (*s == '_')
		761	{
		762	SV **svp = 0;
		763
		764	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		765	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		766
		767	if (svp)
		768	{
		769	SV old = svp;
		770	*svp = newSVsv (sv);
		771	SvREFCNT_dec (old);
		772	return 0;
		773	}
		774	}
		775
		776	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		777	}
636		778
637	static void	779	static void
638	coro_setup (pTHX_ struct coro *coro)	780	coro_setup (pTHX_ struct coro *coro)
639	{	781	{
640	/*	782	/*
…		…
649	PL_curpm = 0;	791	PL_curpm = 0;
650	PL_curpad = 0;	792	PL_curpad = 0;
651	PL_localizing = 0;	793	PL_localizing = 0;
652	PL_dirty = 0;	794	PL_dirty = 0;
653	PL_restartop = 0;	795	PL_restartop = 0;
654	PL_diehook = 0;	796	#if PERL_VERSION_ATLEAST (5,10,0)
655	PL_warnhook = 0;	797	PL_parser = 0;
		798	#endif
		799
		800	/* recreate the die/warn hooks */
		801	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		802	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
656		803
657	GvSV (PL_defgv) = newSV (0);	804	GvSV (PL_defgv) = newSV (0);
658	GvAV (PL_defgv) = coro->args; coro->args = 0;	805	GvAV (PL_defgv) = coro->args; coro->args = 0;
659	GvSV (PL_errgv) = newSV (0);	806	GvSV (PL_errgv) = newSV (0);
660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	807	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
675	PL_op = (OP *)&myop;	822	PL_op = (OP *)&myop;
676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	823	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
677	SPAGAIN;	824	SPAGAIN;
678	}	825	}
679		826
680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	827	/* this newly created coroutine might be run on an existing cctx which most
		828	* likely was suspended in set_stacklevel, called from entersub.
		829	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		830	* so we ENTER here for symmetry
		831	*/
		832	ENTER;
681	}	833	}
682		834
683	static void	835	static void
684	coro_destroy (pTHX_ struct coro *coro)	836	coro_destroy (pTHX_ struct coro *coro)
685	{	837	{
…		…
806	SAVETMPS;	958	SAVETMPS;
807	EXTEND (SP, 3);	959	EXTEND (SP, 3);
808	PUSHMARK (SP);	960	PUSHMARK (SP);
809	PUSHs (&PL_sv_yes);	961	PUSHs (&PL_sv_yes);
810	PUSHs (fullname);	962	PUSHs (fullname);
811	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	963	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
812	PUTBACK;	964	PUTBACK;
813	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	965	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
814	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	966	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
815	SPAGAIN;	967	SPAGAIN;
816	FREETMPS;	968	FREETMPS;
…		…
852		1004
853	/* inject a fake call to Coro::State::_cctx_init into the execution */	1005	/* inject a fake call to Coro::State::_cctx_init into the execution */
854	/* _cctx_init should be careful, as it could be called at almost any time */	1006	/* _cctx_init should be careful, as it could be called at almost any time */
855	/* during execution of a perl program */	1007	/* during execution of a perl program */
856	static void NOINLINE	1008	static void NOINLINE
857	prepare_cctx (pTHX_ coro_cctx *cctx)	1009	cctx_prepare (pTHX_ coro_cctx *cctx)
858	{	1010	{
859	dSP;	1011	dSP;
860	LOGOP myop;	1012	LOGOP myop;
861		1013
862	PL_top_env = &PL_start_env;	1014	PL_top_env = &PL_start_env;
…		…
880		1032
881	/*	1033	/*
882	* this is a _very_ stripped down perl interpreter ;)	1034	* this is a _very_ stripped down perl interpreter ;)
883	*/	1035	*/
884	static void	1036	static void
885	coro_run (void *arg)	1037	cctx_run (void *arg)
886	{	1038	{
887	dTHX;	1039	dTHX;
888		1040
889	/* coro_run is the alternative tail of transfer(), so unlock here. */	1041	/* cctx_run is the alternative tail of transfer(), so unlock here. */
890	UNLOCK;	1042	UNLOCK;
891		1043
892	/* we now skip the entersub that lead to transfer() */	1044	/* we now skip the entersub that lead to transfer() */
893	PL_op = PL_op->op_next;	1045	PL_op = PL_op->op_next;
894		1046
895	/* inject a fake subroutine call to cctx_init */	1047	/* inject a fake subroutine call to cctx_init */
896	prepare_cctx (aTHX_ (coro_cctx *)arg);	1048	cctx_prepare (aTHX_ (coro_cctx *)arg);
897		1049
898	/* somebody or something will hit me for both perl_run and PL_restartop */	1050	/* somebody or something will hit me for both perl_run and PL_restartop */
899	PL_restartop = PL_op;	1051	PL_restartop = PL_op;
900	perl_run (PL_curinterp);	1052	perl_run (PL_curinterp);
901		1053
…		…
920	++cctx_count;	1072	++cctx_count;
921		1073
922	Newz (0, cctx, 1, coro_cctx);	1074	Newz (0, cctx, 1, coro_cctx);
923		1075
924	#if HAVE_MMAP	1076	#if HAVE_MMAP
925
926	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1077	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
927	/* mmap supposedly does allocate-on-write for us */	1078	/* mmap supposedly does allocate-on-write for us */
928	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1079	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
929		1080
930	if (cctx->sptr != (void *)-1)	1081	if (cctx->sptr != (void *)-1)
…		…
951	stack_start = cctx->sptr;	1102	stack_start = cctx->sptr;
952	stack_size = cctx->ssize;	1103	stack_size = cctx->ssize;
953	}	1104	}
954		1105
955	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1106	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
956	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1107	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
957		1108
958	return cctx;	1109	return cctx;
959	}	1110	}
960		1111
961	static void	1112	static void
…		…
1033	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1184	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1034		1185
1035	if (expect_false (next->flags & CF_DESTROYED))	1186	if (expect_false (next->flags & CF_DESTROYED))
1036	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1187	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1037		1188
1038	if (
1039	#if PERL_VERSION_ATLEAST (5,9,0)	1189	#if !PERL_VERSION_ATLEAST (5,10,0)
1040	expect_false (PL_parser)
1041	#else
1042	expect_false (PL_lex_state != LEX_NOTPARSING)	1190	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1043	#endif
1044	)
1045	croak ("Coro::State::transfer called while parsing, but this is not supported");	1191	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1192	#endif
1046	}	1193	}
1047	}	1194	}
1048		1195
1049	/* always use the TRANSFER macro */	1196	/* always use the TRANSFER macro */
1050	static void NOINLINE	1197	static void NOINLINE
1051	transfer (pTHX_ struct coro prev, struct coro next)	1198	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1052	{	1199	{
1053	dSTACKLEVEL;	1200	dSTACKLEVEL;
		1201	static volatile int has_throw;
1054		1202
1055	/* sometimes transfer is only called to set idle_sp */	1203	/* sometimes transfer is only called to set idle_sp */
1056	if (expect_false (!next))	1204	if (expect_false (!next))
1057	{	1205	{
1058	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1206	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1073	prev->flags &= ~CF_RUNNING;	1221	prev->flags &= ~CF_RUNNING;
1074	next->flags \|= CF_RUNNING;	1222	next->flags \|= CF_RUNNING;
1075		1223
1076	LOCK;	1224	LOCK;
1077		1225
		1226	/* first get rid of the old state */
		1227	save_perl (aTHX_ prev);
		1228
1078	if (expect_false (next->flags & CF_NEW))	1229	if (expect_false (next->flags & CF_NEW))
1079	{	1230	{
1080	/* need to start coroutine */	1231	/* need to start coroutine */
1081	next->flags &= ~CF_NEW;	1232	next->flags &= ~CF_NEW;
1082	/* first get rid of the old state */
1083	save_perl (aTHX_ prev);
1084	/* setup coroutine call */	1233	/* setup coroutine call */
1085	coro_setup (aTHX_ next);	1234	coro_setup (aTHX_ next);
1086	}	1235	}
1087	else	1236	else
1088	{
1089	/* coroutine already started */
1090	save_perl (aTHX_ prev);
1091	load_perl (aTHX_ next);	1237	load_perl (aTHX_ next);
1092	}
1093		1238
1094	prev__cctx = prev->cctx;	1239	prev__cctx = prev->cctx;
1095		1240
1096	/* possibly "free" the cctx */	1241	/* possibly "free" the cctx */
1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1242	if (expect_true (
		1243	prev__cctx->idle_sp == STACKLEVEL
		1244	&& !(prev__cctx->flags & CC_TRACE)
		1245	&& !force_cctx
		1246	))
1098	{	1247	{
1099	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1248	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1100	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1249	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1101		1250
1102	prev->cctx = 0;	1251	prev->cctx = 0;
1103		1252
1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1253	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1105	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1254	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1255	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1256	if (!next->cctx)
1107	next->cctx = cctx_get (aTHX);	1257	next->cctx = cctx_get (aTHX);
1108		1258
1109	cctx_put (prev__cctx);	1259	cctx_put (prev__cctx);
1110	}	1260	}
1111		1261
1112	++next->usecount;	1262	++next->usecount;
1113		1263
1114	if (expect_true (!next->cctx))	1264	if (expect_true (!next->cctx))
1115	next->cctx = cctx_get (aTHX);	1265	next->cctx = cctx_get (aTHX);
		1266
		1267	has_throw = !!next->throw;
1116		1268
1117	if (expect_false (prev__cctx != next->cctx))	1269	if (expect_false (prev__cctx != next->cctx))
1118	{	1270	{
1119	prev__cctx->top_env = PL_top_env;	1271	prev__cctx->top_env = PL_top_env;
1120	PL_top_env = next->cctx->top_env;	1272	PL_top_env = next->cctx->top_env;
…		…
1122	}	1274	}
1123		1275
1124	free_coro_mortal (aTHX);	1276	free_coro_mortal (aTHX);
1125	UNLOCK;	1277	UNLOCK;
1126		1278
1127	if (expect_false (prev->throw \|\| next->throw))	1279	if (expect_false (has_throw))
1128	{	1280	{
1129	struct coro *coro = SvSTATE (coro_current);	1281	struct coro *coro = SvSTATE (coro_current);
1130		1282
1131	if (coro->throw)	1283	if (coro->throw)
1132	{	1284	{
…		…
1142	struct transfer_args	1294	struct transfer_args
1143	{	1295	{
1144	struct coro prev, next;	1296	struct coro prev, next;
1145	};	1297	};
1146		1298
1147	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1299	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1148	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1300	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1149		1301
1150	/ high level stuff ******************************************************/	1302	/ high level stuff ******************************************************/
1151		1303
1152	static int	1304	static int
…		…
1246	{	1398	{
1247	dTHX;	1399	dTHX;
1248	struct transfer_args ta;	1400	struct transfer_args ta;
1249		1401
1250	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1402	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1251	TRANSFER (ta);	1403	TRANSFER (ta, 1);
1252	}	1404	}
1253		1405
1254	/ Coro ******************************************************************/	1406	/ Coro ******************************************************************/
1255		1407
1256	static void	1408	static void
…		…
1258	{	1410	{
1259	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1411	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1260	}	1412	}
1261		1413
1262	static SV *	1414	static SV *
1263	coro_deq (pTHX_ int min_prio)	1415	coro_deq (pTHX)
1264	{	1416	{
1265	int prio = PRIO_MAX - PRIO_MIN;	1417	int prio;
1266		1418
1267	min_prio -= PRIO_MIN;
1268	if (min_prio < 0)
1269	min_prio = 0;
1270
1271	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1419	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1272	if (AvFILLp (coro_ready [prio]) >= 0)	1420	if (AvFILLp (coro_ready [prio]) >= 0)
1273	return av_shift (coro_ready [prio]);	1421	return av_shift (coro_ready [prio]);
1274		1422
1275	return 0;	1423	return 0;
1276	}	1424	}
…		…
1278	static int	1426	static int
1279	api_ready (SV *coro_sv)	1427	api_ready (SV *coro_sv)
1280	{	1428	{
1281	dTHX;	1429	dTHX;
1282	struct coro *coro;	1430	struct coro *coro;
		1431	SV *sv_hook;
		1432	void (*xs_hook)(void);
1283		1433
1284	if (SvROK (coro_sv))	1434	if (SvROK (coro_sv))
1285	coro_sv = SvRV (coro_sv);	1435	coro_sv = SvRV (coro_sv);
1286		1436
1287	coro = SvSTATE (coro_sv);	1437	coro = SvSTATE (coro_sv);
…		…
1290	return 0;	1440	return 0;
1291		1441
1292	coro->flags \|= CF_READY;	1442	coro->flags \|= CF_READY;
1293		1443
1294	LOCK;	1444	LOCK;
		1445
		1446	sv_hook = coro_nready ? 0 : coro_readyhook;
		1447	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1448
1295	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1449	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1296	++coro_nready;	1450	++coro_nready;
		1451
1297	UNLOCK;	1452	UNLOCK;
		1453
		1454	if (sv_hook)
		1455	{
		1456	dSP;
		1457
		1458	ENTER;
		1459	SAVETMPS;
		1460
		1461	PUSHMARK (SP);
		1462	PUTBACK;
		1463	call_sv (sv_hook, G_DISCARD);
		1464	SPAGAIN;
		1465
		1466	FREETMPS;
		1467	LEAVE;
		1468	}
		1469
		1470	if (xs_hook)
		1471	xs_hook ();
1298		1472
1299	return 1;	1473	return 1;
1300	}	1474	}
1301		1475
1302	static int	1476	static int
…		…
1312	SV prev_sv, next_sv;	1486	SV prev_sv, next_sv;
1313		1487
1314	for (;;)	1488	for (;;)
1315	{	1489	{
1316	LOCK;	1490	LOCK;
1317	next_sv = coro_deq (aTHX_ PRIO_MIN);	1491	next_sv = coro_deq (aTHX);
1318		1492
1319	/* nothing to schedule: call the idle handler */	1493	/* nothing to schedule: call the idle handler */
1320	if (expect_false (!next_sv))	1494	if (expect_false (!next_sv))
1321	{	1495	{
1322	dSP;	1496	dSP;
…		…
1326	SAVETMPS;	1500	SAVETMPS;
1327		1501
1328	PUSHMARK (SP);	1502	PUSHMARK (SP);
1329	PUTBACK;	1503	PUTBACK;
1330	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1504	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1505	SPAGAIN;
1331		1506
1332	FREETMPS;	1507	FREETMPS;
1333	LEAVE;	1508	LEAVE;
1334	continue;	1509	continue;
1335	}	1510	}
…		…
1390	{	1565	{
1391	dTHX;	1566	dTHX;
1392	struct transfer_args ta;	1567	struct transfer_args ta;
1393		1568
1394	prepare_schedule (aTHX_ &ta);	1569	prepare_schedule (aTHX_ &ta);
1395	TRANSFER (ta);	1570	TRANSFER (ta, 1);
1396	}	1571	}
1397		1572
1398	static int	1573	static int
1399	api_cede (void)	1574	api_cede (void)
1400	{	1575	{
…		…
1403		1578
1404	prepare_cede (aTHX_ &ta);	1579	prepare_cede (aTHX_ &ta);
1405		1580
1406	if (expect_true (ta.prev != ta.next))	1581	if (expect_true (ta.prev != ta.next))
1407	{	1582	{
1408	TRANSFER (ta);	1583	TRANSFER (ta, 1);
1409	return 1;	1584	return 1;
1410	}	1585	}
1411	else	1586	else
1412	return 0;	1587	return 0;
1413	}	1588	}
…		…
1418	dTHX;	1593	dTHX;
1419	struct transfer_args ta;	1594	struct transfer_args ta;
1420		1595
1421	if (prepare_cede_notself (aTHX_ &ta))	1596	if (prepare_cede_notself (aTHX_ &ta))
1422	{	1597	{
1423	TRANSFER (ta);	1598	TRANSFER (ta, 1);
1424	return 1;	1599	return 1;
1425	}	1600	}
1426	else	1601	else
1427	return 0;	1602	return 0;
1428	}	1603	}
…		…
1451	else	1626	else
1452	coro->slot->runops = RUNOPS_DEFAULT;	1627	coro->slot->runops = RUNOPS_DEFAULT;
1453	}	1628	}
1454	}	1629	}
1455		1630
		1631	static int
		1632	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1633	{
		1634	AV *padlist;
		1635	AV av = (AV )mg->mg_obj;
		1636
		1637	abort ();
		1638
		1639	return 0;
		1640	}
		1641
		1642	static MGVTBL coro_gensub_vtbl = {
		1643	0, 0, 0, 0,
		1644	coro_gensub_free
		1645	};
		1646
1456	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1647	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1457		1648
1458	PROTOTYPES: DISABLE	1649	PROTOTYPES: DISABLE
1459		1650
1460	BOOT:	1651	BOOT:
…		…
1464	#endif	1655	#endif
1465	BOOT_PAGESIZE;	1656	BOOT_PAGESIZE;
1466		1657
1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1658	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1659	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1660
		1661	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1662	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1663	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1664
		1665	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1666	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1667	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1469		1668
1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1669	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1471		1670
1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1671	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1672	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1478	main_top_env = PL_top_env;	1677	main_top_env = PL_top_env;
1479		1678
1480	while (main_top_env->je_prev)	1679	while (main_top_env->je_prev)
1481	main_top_env = main_top_env->je_prev;	1680	main_top_env = main_top_env->je_prev;
1482		1681
1483	coroapi.ver = CORO_API_VERSION;	1682	coroapi.ver = CORO_API_VERSION;
		1683	coroapi.rev = CORO_API_REVISION;
1484	coroapi.transfer = api_transfer;	1684	coroapi.transfer = api_transfer;
1485		1685
1486	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1686	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1487	}	1687	}
1488		1688
1489	SV *	1689	SV *
1490	new (char *klass, ...)	1690	new (char *klass, ...)
1491	CODE:	1691	CODE:
1492	{	1692	{
1493	struct coro *coro;	1693	struct coro *coro;
		1694	MAGIC *mg;
1494	HV *hv;	1695	HV *hv;
1495	int i;	1696	int i;
1496		1697
1497	Newz (0, coro, 1, struct coro);	1698	Newz (0, coro, 1, struct coro);
1498	coro->args = newAV ();	1699	coro->args = newAV ();
…		…
1501	if (coro_first) coro_first->prev = coro;	1702	if (coro_first) coro_first->prev = coro;
1502	coro->next = coro_first;	1703	coro->next = coro_first;
1503	coro_first = coro;	1704	coro_first = coro;
1504		1705
1505	coro->hv = hv = newHV ();	1706	coro->hv = hv = newHV ();
1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1707	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1708	mg->mg_flags \|= MGf_DUP;
1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1709	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1508		1710
1509	av_extend (coro->args, items - 1);	1711	av_extend (coro->args, items - 1);
1510	for (i = 1; i < items; i++)	1712	for (i = 1; i < items; i++)
1511	av_push (coro->args, newSVsv (ST (i)));	1713	av_push (coro->args, newSVsv (ST (i)));
…		…
1525	Coro::cede_notself = 4	1727	Coro::cede_notself = 4
1526	CODE:	1728	CODE:
1527	{	1729	{
1528	struct transfer_args ta;	1730	struct transfer_args ta;
1529		1731
		1732	PUTBACK;
1530	switch (ix)	1733	switch (ix)
1531	{	1734	{
1532	case 0:	1735	case 0:
1533	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1736	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1534	ta.next = 0;	1737	ta.next = 0;
…		…
1553	if (!prepare_cede_notself (aTHX_ &ta))	1756	if (!prepare_cede_notself (aTHX_ &ta))
1554	XSRETURN_EMPTY;	1757	XSRETURN_EMPTY;
1555		1758
1556	break;	1759	break;
1557	}	1760	}
		1761	SPAGAIN;
1558		1762
1559	BARRIER;	1763	BARRIER;
		1764	PUTBACK;
1560	TRANSFER (ta);	1765	TRANSFER (ta, 0);
1561		1766	SPAGAIN; /* might be the sp of a different coroutine now */
1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1767	/* be extra careful not to ever do anything after TRANSFER */
1563	XSRETURN_YES;
1564	}	1768	}
1565		1769
1566	bool	1770	bool
1567	_destroy (SV *coro_sv)	1771	_destroy (SV *coro_sv)
1568	CODE:	1772	CODE:
1569	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1773	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1570	OUTPUT:	1774	OUTPUT:
1571	RETVAL	1775	RETVAL
1572		1776
1573	void	1777	void
1574	_exit (code)	1778	_exit (int code)
1575	int code
1576	PROTOTYPE: $	1779	PROTOTYPE: $
1577	CODE:	1780	CODE:
1578	_exit (code);	1781	_exit (code);
1579		1782
1580	int	1783	int
…		…
1620	{	1823	{
1621	struct coro temp;	1824	struct coro temp;
1622		1825
1623	if (!(coro->flags & CF_RUNNING))	1826	if (!(coro->flags & CF_RUNNING))
1624	{	1827	{
		1828	PUTBACK;
1625	save_perl (aTHX_ &temp);	1829	save_perl (aTHX_ &temp);
1626	load_perl (aTHX_ coro);	1830	load_perl (aTHX_ coro);
1627	}	1831	}
1628		1832
1629	{	1833	{
1630	dSP;	1834	dSP;
1631	ENTER;	1835	ENTER;
1632	SAVETMPS;	1836	SAVETMPS;
		1837	PUTBACK;
		1838	PUSHSTACK;
1633	PUSHMARK (SP);	1839	PUSHMARK (SP);
1634	PUTBACK;
1635		1840
1636	if (ix)	1841	if (ix)
1637	eval_sv (coderef, 0);	1842	eval_sv (coderef, 0);
1638	else	1843	else
1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1844	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1640		1845
		1846	POPSTACK;
1641	SPAGAIN;	1847	SPAGAIN;
1642	FREETMPS;	1848	FREETMPS;
1643	LEAVE;	1849	LEAVE;
1644	PUTBACK;	1850	PUTBACK;
1645	}	1851	}
1646		1852
1647	if (!(coro->flags & CF_RUNNING))	1853	if (!(coro->flags & CF_RUNNING))
1648	{	1854	{
1649	save_perl (aTHX_ coro);	1855	save_perl (aTHX_ coro);
1650	load_perl (aTHX_ &temp);	1856	load_perl (aTHX_ &temp);
		1857	SPAGAIN;
1651	}	1858	}
1652	}	1859	}
1653	}	1860	}
1654		1861
1655	SV *	1862	SV *
…		…
1667		1874
1668	void	1875	void
1669	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1876	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1670		1877
1671	SV *	1878	SV *
1672	has_stack (Coro::State coro)	1879	has_cctx (Coro::State coro)
1673	PROTOTYPE: $	1880	PROTOTYPE: $
1674	CODE:	1881	CODE:
1675	RETVAL = boolSV (!!coro->cctx);	1882	RETVAL = boolSV (!!coro->cctx);
1676	OUTPUT:	1883	OUTPUT:
1677	RETVAL	1884	RETVAL
…		…
1696	case 1: RETVAL = coro->usecount; break;	1903	case 1: RETVAL = coro->usecount; break;
1697	}	1904	}
1698	OUTPUT:	1905	OUTPUT:
1699	RETVAL	1906	RETVAL
1700		1907
		1908	void
		1909	force_cctx ()
		1910	CODE:
		1911	struct coro *coro = SvSTATE (coro_current);
		1912	coro->cctx->idle_sp = 0;
		1913
		1914	void
		1915	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1916	PROTOTYPE: $;$
		1917	CODE:
		1918	SvREFCNT_dec (self->throw);
		1919	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1920
		1921	void
		1922	swap_defsv (Coro::State self)
		1923	PROTOTYPE: $
		1924	ALIAS:
		1925	swap_defav = 1
		1926	CODE:
		1927	if (!self->slot)
		1928	croak ("cannot swap state with coroutine that has no saved state");
		1929	else
		1930	{
		1931	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1932	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1933
		1934	SV tmp = src; src = dst; *dst = tmp;
		1935	}
1701		1936
1702	MODULE = Coro::State PACKAGE = Coro	1937	MODULE = Coro::State PACKAGE = Coro
1703		1938
1704	BOOT:	1939	BOOT:
1705	{	1940	{
1706	int i;	1941	int i;
1707		1942
1708	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1709	get_sv ("Coro::POOL_RSS" , TRUE); /* silence stupid 5.10 warning */
1710	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1711	get_sv ("Coro::POOL_SIZE" , TRUE); /* silence stupid 5.10 warning */
1712	av_async_pool = get_av ("Coro::async_pool", TRUE);	1943	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */	1944	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1945	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1714		1946
1715	coro_current = get_sv ("Coro::current", FALSE);	1947	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1716	SvREADONLY_on (coro_current);	1948	SvREADONLY_on (coro_current);
1717		1949
1718	coro_stash = gv_stashpv ("Coro", TRUE);	1950	coro_stash = gv_stashpv ("Coro", TRUE);
1719		1951
1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1952	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1750	PROTOTYPE: $	1982	PROTOTYPE: $
1751	CODE:	1983	CODE:
1752	SvREFCNT_dec (SvRV (coro_current));	1984	SvREFCNT_dec (SvRV (coro_current));
1753	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1985	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1754		1986
		1987	void
		1988	_set_readyhook (SV *hook)
		1989	PROTOTYPE: $
		1990	CODE:
		1991	LOCK;
		1992	SvREFCNT_dec (coro_readyhook);
		1993	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1994	UNLOCK;
		1995
1755	int	1996	int
1756	prio (Coro::State coro, int newprio = 0)	1997	prio (Coro::State coro, int newprio = 0)
1757	ALIAS:	1998	ALIAS:
1758	nice = 1	1999	nice = 1
1759	CODE:	2000	CODE:
…		…
1788	CODE:	2029	CODE:
1789	RETVAL = coro_nready;	2030	RETVAL = coro_nready;
1790	OUTPUT:	2031	OUTPUT:
1791	RETVAL	2032	RETVAL
1792		2033
1793	void
1794	throw (Coro::State self, SV *throw = &PL_sv_undef)
1795	PROTOTYPE: $;$
1796	CODE:
1797	SvREFCNT_dec (self->throw);
1798	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1799
1800	# for async_pool speedup	2034	# for async_pool speedup
1801	void	2035	void
1802	_pool_1 (SV *cb)	2036	_pool_1 (SV *cb)
1803	CODE:	2037	CODE:
1804	{	2038	{
…		…
1808	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2042	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1809	AV *invoke_av;	2043	AV *invoke_av;
1810	int i, len;	2044	int i, len;
1811		2045
1812	if (!invoke)	2046	if (!invoke)
		2047	{
		2048	SV *old = PL_diehook;
		2049	PL_diehook = 0;
		2050	SvREFCNT_dec (old);
1813	croak ("\3async_pool terminate\2\n");	2051	croak ("\3async_pool terminate\2\n");
		2052	}
1814		2053
1815	SvREFCNT_dec (coro->saved_deffh);	2054	SvREFCNT_dec (coro->saved_deffh);
1816	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2055	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1817		2056
1818	hv_store (hv, "desc", sizeof ("desc") - 1,	2057	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1844	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2083	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1845	coro->saved_deffh = 0;	2084	coro->saved_deffh = 0;
1846		2085
1847	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2086	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1848	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2087	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2088	{
		2089	SV *old = PL_diehook;
		2090	PL_diehook = 0;
		2091	SvREFCNT_dec (old);
1849	croak ("\3async_pool terminate\2\n");	2092	croak ("\3async_pool terminate\2\n");
		2093	}
1850		2094
1851	av_clear (GvAV (PL_defgv));	2095	av_clear (GvAV (PL_defgv));
1852	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2096	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1853	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2097	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1854		2098
…		…
1857	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2101	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1858	api_trace (coro_current, 0);	2102	api_trace (coro_current, 0);
1859		2103
1860	av_push (av_async_pool, newSVsv (coro_current));	2104	av_push (av_async_pool, newSVsv (coro_current));
1861	}	2105	}
		2106
		2107	#if 0
		2108
		2109	void
		2110	_generator_call (...)
		2111	PROTOTYPE: @
		2112	PPCODE:
		2113	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2114	xxxx
		2115	abort ();
		2116
		2117	SV *
		2118	gensub (SV *sub, ...)
		2119	PROTOTYPE: &;@
		2120	CODE:
		2121	{
		2122	struct coro *coro;
		2123	MAGIC *mg;
		2124	CV *xcv;
		2125	CV ncv = (CV )newSV_type (SVt_PVCV);
		2126	int i;
		2127
		2128	CvGV (ncv) = CvGV (cv);
		2129	CvFILE (ncv) = CvFILE (cv);
		2130
		2131	Newz (0, coro, 1, struct coro);
		2132	coro->args = newAV ();
		2133	coro->flags = CF_NEW;
		2134
		2135	av_extend (coro->args, items - 1);
		2136	for (i = 1; i < items; i++)
		2137	av_push (coro->args, newSVsv (ST (i)));
		2138
		2139	CvISXSUB_on (ncv);
		2140	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2141
		2142	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2143
		2144	CvXSUB (ncv) = CvXSUB (xcv);
		2145	CvANON_on (ncv);
		2146
		2147	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2148	RETVAL = newRV_noinc ((SV *)ncv);
		2149	}
		2150	OUTPUT:
		2151	RETVAL
		2152
		2153	#endif
1862		2154
1863		2155
1864	MODULE = Coro::State PACKAGE = Coro::AIO	2156	MODULE = Coro::State PACKAGE = Coro::AIO
1865		2157
1866	SV *	2158	SV *
…		…
1893	PL_laststype = data->laststype;	2185	PL_laststype = data->laststype;
1894	PL_laststatval = data->laststatval;	2186	PL_laststatval = data->laststatval;
1895	PL_statcache = data->statcache;	2187	PL_statcache = data->statcache;
1896	}	2188	}
1897		2189
		2190
		2191	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2192
		2193	BOOT:
		2194	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2195
		2196	SV *
		2197	_schedule (...)
		2198	PROTOTYPE: @
		2199	CODE:
		2200	{
		2201	static int incede;
		2202
		2203	api_cede_notself ();
		2204
		2205	++incede;
		2206	while (coro_nready >= incede && api_cede ())
		2207	;
		2208
		2209	sv_setsv (sv_activity, &PL_sv_undef);
		2210	if (coro_nready >= incede)
		2211	{
		2212	PUSHMARK (SP);
		2213	PUTBACK;
		2214	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2215	SPAGAIN;
		2216	}
		2217
		2218	--incede;
		2219	}
		2220

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Comparing Coro/Coro/State.xs (file contents): Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs. Revision 1.244 by root, Sun Sep 21 18:29:39 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.244 by root, Sun Sep 21 18:29:39 2008 UTC