[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 1.245 by root, Mon Sep 22 05:40:21 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)];
…		…
311		361
312	/* casting is fun. */	362	/* casting is fun. */
313	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
314	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
315		365
316	SvREFCNT_dec (av);	366	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
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
…		…
614	#undef VAR	666	#undef VAR
615	}	667	}
616	else	668	else
617	slot = coro->slot;	669	slot = coro->slot;
618		670
		671	if (slot)
		672	{
619	rss += sizeof (slot->curstackinfo);	673	rss += sizeof (slot->curstackinfo);
620	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	674	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
621	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	675	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
622	rss += slot->tmps_max * sizeof (SV *);	676	rss += slot->tmps_max * sizeof (SV *);
623	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	677	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
624	rss += slot->scopestack_max * sizeof (I32);	678	rss += slot->scopestack_max * sizeof (I32);
625	rss += slot->savestack_max * sizeof (ANY);	679	rss += slot->savestack_max * sizeof (ANY);
626		680
627	#if !PERL_VERSION_ATLEAST (5,9,0)	681	#if !PERL_VERSION_ATLEAST (5,10,0)
628	rss += slot->retstack_max * sizeof (OP *);	682	rss += slot->retstack_max * sizeof (OP *);
629	#endif	683	#endif
		684	}
630	}	685	}
631		686
632	return rss;	687	return rss;
633	}	688	}
634		689
635	/ coroutine stack handling **********************************************/	690	/ coroutine stack handling **********************************************/
		691
		692	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		693	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		694	static int (orig_sigelem_clr) (pTHX_ SV sv, MAGIC *mg);
		695
		696	/* apparently < 5.8.8 */
		697	#ifndef MgPV_nolen_const
		698	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		699	SvPV_nolen((SV*)((mg)->mg_ptr)) : \
		700	(const char*)(mg)->mg_ptr)
		701	#endif
		702
		703	/*
		704	* This overrides the default magic get method of %SIG elements.
		705	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		706	* and instead of tryign to save and restore the hash elements, we just provide
		707	* readback here.
		708	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		709	* not expecting this to actually change the hook. This is a potential problem
		710	* when a schedule happens then, but we ignore this.
		711	*/
		712	static int
		713	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		714	{
		715	const char *s = MgPV_nolen_const (mg);
		716
		717	if (*s == '_')
		718	{
		719	SV **svp = 0;
		720
		721	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		722	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		723
		724	if (svp)
		725	{
		726	sv_setsv (sv, svp ? svp : &PL_sv_undef);
		727	return 0;
		728	}
		729	}
		730
		731	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		732	}
		733
		734	static int
		735	coro_sigelem_clr (pTHX_ SV sv, MAGIC mg)
		736	{
		737	const char *s = MgPV_nolen_const (mg);
		738
		739	if (*s == '_')
		740	{
		741	SV **svp = 0;
		742
		743	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		744	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		745
		746	if (svp)
		747	{
		748	SV old = svp;
		749	*svp = 0;
		750	SvREFCNT_dec (old);
		751	return 0;
		752	}
		753	}
		754
		755	return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
		756	}
		757
		758	static int
		759	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		760	{
		761	const char *s = MgPV_nolen_const (mg);
		762
		763	if (*s == '_')
		764	{
		765	SV **svp = 0;
		766
		767	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		768	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		769
		770	if (svp)
		771	{
		772	SV old = svp;
		773	*svp = newSVsv (sv);
		774	SvREFCNT_dec (old);
		775	return 0;
		776	}
		777	}
		778
		779	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		780	}
636		781
637	static void	782	static void
638	coro_setup (pTHX_ struct coro *coro)	783	coro_setup (pTHX_ struct coro *coro)
639	{	784	{
640	/*	785	/*
…		…
649	PL_curpm = 0;	794	PL_curpm = 0;
650	PL_curpad = 0;	795	PL_curpad = 0;
651	PL_localizing = 0;	796	PL_localizing = 0;
652	PL_dirty = 0;	797	PL_dirty = 0;
653	PL_restartop = 0;	798	PL_restartop = 0;
654	PL_diehook = 0;	799	#if PERL_VERSION_ATLEAST (5,10,0)
655	PL_warnhook = 0;	800	PL_parser = 0;
		801	#endif
		802
		803	/* recreate the die/warn hooks */
		804	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		805	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
656		806
657	GvSV (PL_defgv) = newSV (0);	807	GvSV (PL_defgv) = newSV (0);
658	GvAV (PL_defgv) = coro->args; coro->args = 0;	808	GvAV (PL_defgv) = coro->args; coro->args = 0;
659	GvSV (PL_errgv) = newSV (0);	809	GvSV (PL_errgv) = newSV (0);
660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	810	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
675	PL_op = (OP *)&myop;	825	PL_op = (OP *)&myop;
676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	826	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
677	SPAGAIN;	827	SPAGAIN;
678	}	828	}
679		829
680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	830	/* this newly created coroutine might be run on an existing cctx which most
		831	* likely was suspended in set_stacklevel, called from entersub.
		832	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		833	* so we ENTER here for symmetry
		834	*/
		835	ENTER;
681	}	836	}
682		837
683	static void	838	static void
684	coro_destroy (pTHX_ struct coro *coro)	839	coro_destroy (pTHX_ struct coro *coro)
685	{	840	{
…		…
806	SAVETMPS;	961	SAVETMPS;
807	EXTEND (SP, 3);	962	EXTEND (SP, 3);
808	PUSHMARK (SP);	963	PUSHMARK (SP);
809	PUSHs (&PL_sv_yes);	964	PUSHs (&PL_sv_yes);
810	PUSHs (fullname);	965	PUSHs (fullname);
811	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	966	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
812	PUTBACK;	967	PUTBACK;
813	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	968	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);	969	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
815	SPAGAIN;	970	SPAGAIN;
816	FREETMPS;	971	FREETMPS;
…		…
852		1007
853	/* inject a fake call to Coro::State::_cctx_init into the execution */	1008	/* 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 */	1009	/* _cctx_init should be careful, as it could be called at almost any time */
855	/* during execution of a perl program */	1010	/* during execution of a perl program */
856	static void NOINLINE	1011	static void NOINLINE
857	prepare_cctx (pTHX_ coro_cctx *cctx)	1012	cctx_prepare (pTHX_ coro_cctx *cctx)
858	{	1013	{
859	dSP;	1014	dSP;
860	LOGOP myop;	1015	LOGOP myop;
861		1016
862	PL_top_env = &PL_start_env;	1017	PL_top_env = &PL_start_env;
…		…
880		1035
881	/*	1036	/*
882	* this is a _very_ stripped down perl interpreter ;)	1037	* this is a _very_ stripped down perl interpreter ;)
883	*/	1038	*/
884	static void	1039	static void
885	coro_run (void *arg)	1040	cctx_run (void *arg)
886	{	1041	{
887	dTHX;	1042	dTHX;
888		1043
889	/* coro_run is the alternative tail of transfer(), so unlock here. */	1044	/* cctx_run is the alternative tail of transfer(), so unlock here. */
890	UNLOCK;	1045	UNLOCK;
891		1046
892	/* we now skip the entersub that lead to transfer() */	1047	/* we now skip the entersub that lead to transfer() */
893	PL_op = PL_op->op_next;	1048	PL_op = PL_op->op_next;
894		1049
895	/* inject a fake subroutine call to cctx_init */	1050	/* inject a fake subroutine call to cctx_init */
896	prepare_cctx (aTHX_ (coro_cctx *)arg);	1051	cctx_prepare (aTHX_ (coro_cctx *)arg);
897		1052
898	/* somebody or something will hit me for both perl_run and PL_restartop */	1053	/* somebody or something will hit me for both perl_run and PL_restartop */
899	PL_restartop = PL_op;	1054	PL_restartop = PL_op;
900	perl_run (PL_curinterp);	1055	perl_run (PL_curinterp);
901		1056
…		…
920	++cctx_count;	1075	++cctx_count;
921		1076
922	Newz (0, cctx, 1, coro_cctx);	1077	Newz (0, cctx, 1, coro_cctx);
923		1078
924	#if HAVE_MMAP	1079	#if HAVE_MMAP
925
926	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1080	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
927	/* mmap supposedly does allocate-on-write for us */	1081	/* 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);	1082	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
929		1083
930	if (cctx->sptr != (void *)-1)	1084	if (cctx->sptr != (void *)-1)
…		…
951	stack_start = cctx->sptr;	1105	stack_start = cctx->sptr;
952	stack_size = cctx->ssize;	1106	stack_size = cctx->ssize;
953	}	1107	}
954		1108
955	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1109	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
956	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1110	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
957		1111
958	return cctx;	1112	return cctx;
959	}	1113	}
960		1114
961	static void	1115	static void
…		…
1033	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1187	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1034		1188
1035	if (expect_false (next->flags & CF_DESTROYED))	1189	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");	1190	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1037		1191
1038	if (
1039	#if PERL_VERSION_ATLEAST (5,9,0)	1192	#if !PERL_VERSION_ATLEAST (5,10,0)
1040	expect_false (PL_parser)
1041	#else
1042	expect_false (PL_lex_state != LEX_NOTPARSING)	1193	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1043	#endif
1044	)
1045	croak ("Coro::State::transfer called while parsing, but this is not supported");	1194	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1195	#endif
1046	}	1196	}
1047	}	1197	}
1048		1198
1049	/* always use the TRANSFER macro */	1199	/* always use the TRANSFER macro */
1050	static void NOINLINE	1200	static void NOINLINE
1051	transfer (pTHX_ struct coro prev, struct coro next)	1201	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1052	{	1202	{
1053	dSTACKLEVEL;	1203	dSTACKLEVEL;
		1204	static volatile int has_throw;
1054		1205
1055	/* sometimes transfer is only called to set idle_sp */	1206	/* sometimes transfer is only called to set idle_sp */
1056	if (expect_false (!next))	1207	if (expect_false (!next))
1057	{	1208	{
1058	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1209	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1073	prev->flags &= ~CF_RUNNING;	1224	prev->flags &= ~CF_RUNNING;
1074	next->flags \|= CF_RUNNING;	1225	next->flags \|= CF_RUNNING;
1075		1226
1076	LOCK;	1227	LOCK;
1077		1228
		1229	/* first get rid of the old state */
		1230	save_perl (aTHX_ prev);
		1231
1078	if (expect_false (next->flags & CF_NEW))	1232	if (expect_false (next->flags & CF_NEW))
1079	{	1233	{
1080	/* need to start coroutine */	1234	/* need to start coroutine */
1081	next->flags &= ~CF_NEW;	1235	next->flags &= ~CF_NEW;
1082	/* first get rid of the old state */
1083	save_perl (aTHX_ prev);
1084	/* setup coroutine call */	1236	/* setup coroutine call */
1085	coro_setup (aTHX_ next);	1237	coro_setup (aTHX_ next);
1086	}	1238	}
1087	else	1239	else
1088	{
1089	/* coroutine already started */
1090	save_perl (aTHX_ prev);
1091	load_perl (aTHX_ next);	1240	load_perl (aTHX_ next);
1092	}
1093		1241
1094	prev__cctx = prev->cctx;	1242	prev__cctx = prev->cctx;
1095		1243
1096	/* possibly "free" the cctx */	1244	/* possibly "free" the cctx */
1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1245	if (expect_true (
		1246	prev__cctx->idle_sp == STACKLEVEL
		1247	&& !(prev__cctx->flags & CC_TRACE)
		1248	&& !force_cctx
		1249	))
1098	{	1250	{
1099	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1251	/* 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));	1252	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1101		1253
1102	prev->cctx = 0;	1254	prev->cctx = 0;
1103		1255
1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1256	/* 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 */	1257	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1258	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1259	if (!next->cctx)
1107	next->cctx = cctx_get (aTHX);	1260	next->cctx = cctx_get (aTHX);
1108		1261
1109	cctx_put (prev__cctx);	1262	cctx_put (prev__cctx);
1110	}	1263	}
1111		1264
1112	++next->usecount;	1265	++next->usecount;
1113		1266
1114	if (expect_true (!next->cctx))	1267	if (expect_true (!next->cctx))
1115	next->cctx = cctx_get (aTHX);	1268	next->cctx = cctx_get (aTHX);
		1269
		1270	has_throw = !!next->throw;
1116		1271
1117	if (expect_false (prev__cctx != next->cctx))	1272	if (expect_false (prev__cctx != next->cctx))
1118	{	1273	{
1119	prev__cctx->top_env = PL_top_env;	1274	prev__cctx->top_env = PL_top_env;
1120	PL_top_env = next->cctx->top_env;	1275	PL_top_env = next->cctx->top_env;
…		…
1122	}	1277	}
1123		1278
1124	free_coro_mortal (aTHX);	1279	free_coro_mortal (aTHX);
1125	UNLOCK;	1280	UNLOCK;
1126		1281
1127	if (expect_false (prev->throw \|\| next->throw))	1282	if (expect_false (has_throw))
1128	{	1283	{
1129	struct coro *coro = SvSTATE (coro_current);	1284	struct coro *coro = SvSTATE (coro_current);
1130		1285
1131	if (coro->throw)	1286	if (coro->throw)
1132	{	1287	{
…		…
1142	struct transfer_args	1297	struct transfer_args
1143	{	1298	{
1144	struct coro prev, next;	1299	struct coro prev, next;
1145	};	1300	};
1146		1301
1147	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1302	#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)	1303	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1149		1304
1150	/ high level stuff ******************************************************/	1305	/ high level stuff ******************************************************/
1151		1306
1152	static int	1307	static int
…		…
1246	{	1401	{
1247	dTHX;	1402	dTHX;
1248	struct transfer_args ta;	1403	struct transfer_args ta;
1249		1404
1250	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1405	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1251	TRANSFER (ta);	1406	TRANSFER (ta, 1);
1252	}	1407	}
1253		1408
1254	/ Coro ******************************************************************/	1409	/ Coro ******************************************************************/
1255		1410
1256	static void	1411	static void
…		…
1258	{	1413	{
1259	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1414	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1260	}	1415	}
1261		1416
1262	static SV *	1417	static SV *
1263	coro_deq (pTHX_ int min_prio)	1418	coro_deq (pTHX)
1264	{	1419	{
1265	int prio = PRIO_MAX - PRIO_MIN;	1420	int prio;
1266		1421
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; )	1422	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1272	if (AvFILLp (coro_ready [prio]) >= 0)	1423	if (AvFILLp (coro_ready [prio]) >= 0)
1273	return av_shift (coro_ready [prio]);	1424	return av_shift (coro_ready [prio]);
1274		1425
1275	return 0;	1426	return 0;
1276	}	1427	}
…		…
1278	static int	1429	static int
1279	api_ready (SV *coro_sv)	1430	api_ready (SV *coro_sv)
1280	{	1431	{
1281	dTHX;	1432	dTHX;
1282	struct coro *coro;	1433	struct coro *coro;
		1434	SV *sv_hook;
		1435	void (*xs_hook)(void);
1283		1436
1284	if (SvROK (coro_sv))	1437	if (SvROK (coro_sv))
1285	coro_sv = SvRV (coro_sv);	1438	coro_sv = SvRV (coro_sv);
1286		1439
1287	coro = SvSTATE (coro_sv);	1440	coro = SvSTATE (coro_sv);
…		…
1290	return 0;	1443	return 0;
1291		1444
1292	coro->flags \|= CF_READY;	1445	coro->flags \|= CF_READY;
1293		1446
1294	LOCK;	1447	LOCK;
		1448
		1449	sv_hook = coro_nready ? 0 : coro_readyhook;
		1450	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1451
1295	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1452	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1296	++coro_nready;	1453	++coro_nready;
		1454
1297	UNLOCK;	1455	UNLOCK;
		1456
		1457	if (sv_hook)
		1458	{
		1459	dSP;
		1460
		1461	ENTER;
		1462	SAVETMPS;
		1463
		1464	PUSHMARK (SP);
		1465	PUTBACK;
		1466	call_sv (sv_hook, G_DISCARD);
		1467	SPAGAIN;
		1468
		1469	FREETMPS;
		1470	LEAVE;
		1471	}
		1472
		1473	if (xs_hook)
		1474	xs_hook ();
1298		1475
1299	return 1;	1476	return 1;
1300	}	1477	}
1301		1478
1302	static int	1479	static int
…		…
1312	SV prev_sv, next_sv;	1489	SV prev_sv, next_sv;
1313		1490
1314	for (;;)	1491	for (;;)
1315	{	1492	{
1316	LOCK;	1493	LOCK;
1317	next_sv = coro_deq (aTHX_ PRIO_MIN);	1494	next_sv = coro_deq (aTHX);
1318		1495
1319	/* nothing to schedule: call the idle handler */	1496	/* nothing to schedule: call the idle handler */
1320	if (expect_false (!next_sv))	1497	if (expect_false (!next_sv))
1321	{	1498	{
1322	dSP;	1499	dSP;
…		…
1326	SAVETMPS;	1503	SAVETMPS;
1327		1504
1328	PUSHMARK (SP);	1505	PUSHMARK (SP);
1329	PUTBACK;	1506	PUTBACK;
1330	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1507	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1508	SPAGAIN;
1331		1509
1332	FREETMPS;	1510	FREETMPS;
1333	LEAVE;	1511	LEAVE;
1334	continue;	1512	continue;
1335	}	1513	}
…		…
1390	{	1568	{
1391	dTHX;	1569	dTHX;
1392	struct transfer_args ta;	1570	struct transfer_args ta;
1393		1571
1394	prepare_schedule (aTHX_ &ta);	1572	prepare_schedule (aTHX_ &ta);
1395	TRANSFER (ta);	1573	TRANSFER (ta, 1);
1396	}	1574	}
1397		1575
1398	static int	1576	static int
1399	api_cede (void)	1577	api_cede (void)
1400	{	1578	{
…		…
1403		1581
1404	prepare_cede (aTHX_ &ta);	1582	prepare_cede (aTHX_ &ta);
1405		1583
1406	if (expect_true (ta.prev != ta.next))	1584	if (expect_true (ta.prev != ta.next))
1407	{	1585	{
1408	TRANSFER (ta);	1586	TRANSFER (ta, 1);
1409	return 1;	1587	return 1;
1410	}	1588	}
1411	else	1589	else
1412	return 0;	1590	return 0;
1413	}	1591	}
…		…
1418	dTHX;	1596	dTHX;
1419	struct transfer_args ta;	1597	struct transfer_args ta;
1420		1598
1421	if (prepare_cede_notself (aTHX_ &ta))	1599	if (prepare_cede_notself (aTHX_ &ta))
1422	{	1600	{
1423	TRANSFER (ta);	1601	TRANSFER (ta, 1);
1424	return 1;	1602	return 1;
1425	}	1603	}
1426	else	1604	else
1427	return 0;	1605	return 0;
1428	}	1606	}
…		…
1451	else	1629	else
1452	coro->slot->runops = RUNOPS_DEFAULT;	1630	coro->slot->runops = RUNOPS_DEFAULT;
1453	}	1631	}
1454	}	1632	}
1455		1633
		1634	static int
		1635	coro_gensub_free (pTHX_ SV sv, MAGIC mg)
		1636	{
		1637	AV *padlist;
		1638	AV av = (AV )mg->mg_obj;
		1639
		1640	abort ();
		1641
		1642	return 0;
		1643	}
		1644
		1645	static MGVTBL coro_gensub_vtbl = {
		1646	0, 0, 0, 0,
		1647	coro_gensub_free
		1648	};
		1649
1456	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1650	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1457		1651
1458	PROTOTYPES: DISABLE	1652	PROTOTYPES: DISABLE
1459		1653
1460	BOOT:	1654	BOOT:
…		…
1464	#endif	1658	#endif
1465	BOOT_PAGESIZE;	1659	BOOT_PAGESIZE;
1466		1660
1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1661	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1662	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1663
		1664	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1665	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1666	orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
		1667
		1668	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1669	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1670	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1469		1671
1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1672	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1471		1673
1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1674	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1675	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
…		…
1478	main_top_env = PL_top_env;	1680	main_top_env = PL_top_env;
1479		1681
1480	while (main_top_env->je_prev)	1682	while (main_top_env->je_prev)
1481	main_top_env = main_top_env->je_prev;	1683	main_top_env = main_top_env->je_prev;
1482		1684
1483	coroapi.ver = CORO_API_VERSION;	1685	coroapi.ver = CORO_API_VERSION;
		1686	coroapi.rev = CORO_API_REVISION;
1484	coroapi.transfer = api_transfer;	1687	coroapi.transfer = api_transfer;
1485		1688
1486	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1689	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1487	}	1690	}
1488		1691
1489	SV *	1692	SV *
1490	new (char *klass, ...)	1693	new (char *klass, ...)
1491	CODE:	1694	CODE:
1492	{	1695	{
1493	struct coro *coro;	1696	struct coro *coro;
		1697	MAGIC *mg;
1494	HV *hv;	1698	HV *hv;
1495	int i;	1699	int i;
1496		1700
1497	Newz (0, coro, 1, struct coro);	1701	Newz (0, coro, 1, struct coro);
1498	coro->args = newAV ();	1702	coro->args = newAV ();
…		…
1501	if (coro_first) coro_first->prev = coro;	1705	if (coro_first) coro_first->prev = coro;
1502	coro->next = coro_first;	1706	coro->next = coro_first;
1503	coro_first = coro;	1707	coro_first = coro;
1504		1708
1505	coro->hv = hv = newHV ();	1709	coro->hv = hv = newHV ();
1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1710	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1711	mg->mg_flags \|= MGf_DUP;
1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1712	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1508		1713
1509	av_extend (coro->args, items - 1);	1714	av_extend (coro->args, items - 1);
1510	for (i = 1; i < items; i++)	1715	for (i = 1; i < items; i++)
1511	av_push (coro->args, newSVsv (ST (i)));	1716	av_push (coro->args, newSVsv (ST (i)));
…		…
1525	Coro::cede_notself = 4	1730	Coro::cede_notself = 4
1526	CODE:	1731	CODE:
1527	{	1732	{
1528	struct transfer_args ta;	1733	struct transfer_args ta;
1529		1734
		1735	PUTBACK;
1530	switch (ix)	1736	switch (ix)
1531	{	1737	{
1532	case 0:	1738	case 0:
1533	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1739	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1534	ta.next = 0;	1740	ta.next = 0;
…		…
1553	if (!prepare_cede_notself (aTHX_ &ta))	1759	if (!prepare_cede_notself (aTHX_ &ta))
1554	XSRETURN_EMPTY;	1760	XSRETURN_EMPTY;
1555		1761
1556	break;	1762	break;
1557	}	1763	}
		1764	SPAGAIN;
1558		1765
1559	BARRIER;	1766	BARRIER;
		1767	PUTBACK;
1560	TRANSFER (ta);	1768	TRANSFER (ta, 0);
1561		1769	SPAGAIN; /* might be the sp of a different coroutine now */
1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1770	/* be extra careful not to ever do anything after TRANSFER */
1563	XSRETURN_YES;
1564	}	1771	}
1565		1772
1566	bool	1773	bool
1567	_destroy (SV *coro_sv)	1774	_destroy (SV *coro_sv)
1568	CODE:	1775	CODE:
1569	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1776	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1570	OUTPUT:	1777	OUTPUT:
1571	RETVAL	1778	RETVAL
1572		1779
1573	void	1780	void
1574	_exit (code)	1781	_exit (int code)
1575	int code
1576	PROTOTYPE: $	1782	PROTOTYPE: $
1577	CODE:	1783	CODE:
1578	_exit (code);	1784	_exit (code);
1579		1785
1580	int	1786	int
…		…
1614	call (Coro::State coro, SV *coderef)	1820	call (Coro::State coro, SV *coderef)
1615	ALIAS:	1821	ALIAS:
1616	eval = 1	1822	eval = 1
1617	CODE:	1823	CODE:
1618	{	1824	{
1619	if (coro->mainstack)	1825	if (coro->mainstack && ((coro->flags & CF_RUNNING) \|\| coro->slot))
1620	{	1826	{
1621	struct coro temp;	1827	struct coro temp;
1622		1828
1623	if (!(coro->flags & CF_RUNNING))	1829	if (!(coro->flags & CF_RUNNING))
1624	{	1830	{
		1831	PUTBACK;
1625	save_perl (aTHX_ &temp);	1832	save_perl (aTHX_ &temp);
1626	load_perl (aTHX_ coro);	1833	load_perl (aTHX_ coro);
1627	}	1834	}
1628		1835
1629	{	1836	{
1630	dSP;	1837	dSP;
1631	ENTER;	1838	ENTER;
1632	SAVETMPS;	1839	SAVETMPS;
		1840	PUTBACK;
		1841	PUSHSTACK;
1633	PUSHMARK (SP);	1842	PUSHMARK (SP);
1634	PUTBACK;
1635		1843
1636	if (ix)	1844	if (ix)
1637	eval_sv (coderef, 0);	1845	eval_sv (coderef, 0);
1638	else	1846	else
1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1847	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1640		1848
		1849	POPSTACK;
1641	SPAGAIN;	1850	SPAGAIN;
1642	FREETMPS;	1851	FREETMPS;
1643	LEAVE;	1852	LEAVE;
1644	PUTBACK;	1853	PUTBACK;
1645	}	1854	}
1646		1855
1647	if (!(coro->flags & CF_RUNNING))	1856	if (!(coro->flags & CF_RUNNING))
1648	{	1857	{
1649	save_perl (aTHX_ coro);	1858	save_perl (aTHX_ coro);
1650	load_perl (aTHX_ &temp);	1859	load_perl (aTHX_ &temp);
		1860	SPAGAIN;
1651	}	1861	}
1652	}	1862	}
1653	}	1863	}
1654		1864
1655	SV *	1865	SV *
…		…
1667		1877
1668	void	1878	void
1669	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1879	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1670		1880
1671	SV *	1881	SV *
1672	has_stack (Coro::State coro)	1882	has_cctx (Coro::State coro)
1673	PROTOTYPE: $	1883	PROTOTYPE: $
1674	CODE:	1884	CODE:
1675	RETVAL = boolSV (!!coro->cctx);	1885	RETVAL = boolSV (!!coro->cctx);
1676	OUTPUT:	1886	OUTPUT:
1677	RETVAL	1887	RETVAL
…		…
1696	case 1: RETVAL = coro->usecount; break;	1906	case 1: RETVAL = coro->usecount; break;
1697	}	1907	}
1698	OUTPUT:	1908	OUTPUT:
1699	RETVAL	1909	RETVAL
1700		1910
		1911	void
		1912	force_cctx ()
		1913	CODE:
		1914	struct coro *coro = SvSTATE (coro_current);
		1915	coro->cctx->idle_sp = 0;
		1916
		1917	void
		1918	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1919	PROTOTYPE: $;$
		1920	CODE:
		1921	SvREFCNT_dec (self->throw);
		1922	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1923
		1924	void
		1925	swap_defsv (Coro::State self)
		1926	PROTOTYPE: $
		1927	ALIAS:
		1928	swap_defav = 1
		1929	CODE:
		1930	if (!self->slot)
		1931	croak ("cannot swap state with coroutine that has no saved state");
		1932	else
		1933	{
		1934	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1935	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1936
		1937	SV tmp = src; src = dst; *dst = tmp;
		1938	}
1701		1939
1702	MODULE = Coro::State PACKAGE = Coro	1940	MODULE = Coro::State PACKAGE = Coro
1703		1941
1704	BOOT:	1942	BOOT:
1705	{	1943	{
1706	int i;	1944	int i;
1707		1945
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);	1946	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */	1947	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1948	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1714		1949
1715	coro_current = get_sv ("Coro::current", FALSE);	1950	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1716	SvREADONLY_on (coro_current);	1951	SvREADONLY_on (coro_current);
1717		1952
1718	coro_stash = gv_stashpv ("Coro", TRUE);	1953	coro_stash = gv_stashpv ("Coro", TRUE);
1719		1954
1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1955	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1750	PROTOTYPE: $	1985	PROTOTYPE: $
1751	CODE:	1986	CODE:
1752	SvREFCNT_dec (SvRV (coro_current));	1987	SvREFCNT_dec (SvRV (coro_current));
1753	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1988	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1754		1989
		1990	void
		1991	_set_readyhook (SV *hook)
		1992	PROTOTYPE: $
		1993	CODE:
		1994	LOCK;
		1995	SvREFCNT_dec (coro_readyhook);
		1996	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1997	UNLOCK;
		1998
1755	int	1999	int
1756	prio (Coro::State coro, int newprio = 0)	2000	prio (Coro::State coro, int newprio = 0)
1757	ALIAS:	2001	ALIAS:
1758	nice = 1	2002	nice = 1
1759	CODE:	2003	CODE:
…		…
1788	CODE:	2032	CODE:
1789	RETVAL = coro_nready;	2033	RETVAL = coro_nready;
1790	OUTPUT:	2034	OUTPUT:
1791	RETVAL	2035	RETVAL
1792		2036
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	2037	# for async_pool speedup
1801	void	2038	void
1802	_pool_1 (SV *cb)	2039	_pool_1 (SV *cb)
1803	CODE:	2040	CODE:
1804	{	2041	{
…		…
1808	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	2045	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1809	AV *invoke_av;	2046	AV *invoke_av;
1810	int i, len;	2047	int i, len;
1811		2048
1812	if (!invoke)	2049	if (!invoke)
		2050	{
		2051	SV *old = PL_diehook;
		2052	PL_diehook = 0;
		2053	SvREFCNT_dec (old);
1813	croak ("\3async_pool terminate\2\n");	2054	croak ("\3async_pool terminate\2\n");
		2055	}
1814		2056
1815	SvREFCNT_dec (coro->saved_deffh);	2057	SvREFCNT_dec (coro->saved_deffh);
1816	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	2058	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1817		2059
1818	hv_store (hv, "desc", sizeof ("desc") - 1,	2060	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1844	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2086	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1845	coro->saved_deffh = 0;	2087	coro->saved_deffh = 0;
1846		2088
1847	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2089	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1848	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2090	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2091	{
		2092	SV *old = PL_diehook;
		2093	PL_diehook = 0;
		2094	SvREFCNT_dec (old);
1849	croak ("\3async_pool terminate\2\n");	2095	croak ("\3async_pool terminate\2\n");
		2096	}
1850		2097
1851	av_clear (GvAV (PL_defgv));	2098	av_clear (GvAV (PL_defgv));
1852	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2099	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1853	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2100	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1854		2101
…		…
1857	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2104	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1858	api_trace (coro_current, 0);	2105	api_trace (coro_current, 0);
1859		2106
1860	av_push (av_async_pool, newSVsv (coro_current));	2107	av_push (av_async_pool, newSVsv (coro_current));
1861	}	2108	}
		2109
		2110	#if 0
		2111
		2112	void
		2113	_generator_call (...)
		2114	PROTOTYPE: @
		2115	PPCODE:
		2116	fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
		2117	xxxx
		2118	abort ();
		2119
		2120	SV *
		2121	gensub (SV *sub, ...)
		2122	PROTOTYPE: &;@
		2123	CODE:
		2124	{
		2125	struct coro *coro;
		2126	MAGIC *mg;
		2127	CV *xcv;
		2128	CV ncv = (CV )newSV_type (SVt_PVCV);
		2129	int i;
		2130
		2131	CvGV (ncv) = CvGV (cv);
		2132	CvFILE (ncv) = CvFILE (cv);
		2133
		2134	Newz (0, coro, 1, struct coro);
		2135	coro->args = newAV ();
		2136	coro->flags = CF_NEW;
		2137
		2138	av_extend (coro->args, items - 1);
		2139	for (i = 1; i < items; i++)
		2140	av_push (coro->args, newSVsv (ST (i)));
		2141
		2142	CvISXSUB_on (ncv);
		2143	CvXSUBANY (ncv).any_ptr = (void *)coro;
		2144
		2145	xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
		2146
		2147	CvXSUB (ncv) = CvXSUB (xcv);
		2148	CvANON_on (ncv);
		2149
		2150	mg = sv_magicext ((SV )ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char )coro, 0);
		2151	RETVAL = newRV_noinc ((SV *)ncv);
		2152	}
		2153	OUTPUT:
		2154	RETVAL
		2155
		2156	#endif
1862		2157
1863		2158
1864	MODULE = Coro::State PACKAGE = Coro::AIO	2159	MODULE = Coro::State PACKAGE = Coro::AIO
1865		2160
1866	SV *	2161	SV *
…		…
1893	PL_laststype = data->laststype;	2188	PL_laststype = data->laststype;
1894	PL_laststatval = data->laststatval;	2189	PL_laststatval = data->laststatval;
1895	PL_statcache = data->statcache;	2190	PL_statcache = data->statcache;
1896	}	2191	}
1897		2192
		2193
		2194	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2195
		2196	BOOT:
		2197	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2198
		2199	SV *
		2200	_schedule (...)
		2201	PROTOTYPE: @
		2202	CODE:
		2203	{
		2204	static int incede;
		2205
		2206	api_cede_notself ();
		2207
		2208	++incede;
		2209	while (coro_nready >= incede && api_cede ())
		2210	;
		2211
		2212	sv_setsv (sv_activity, &PL_sv_undef);
		2213	if (coro_nready >= incede)
		2214	{
		2215	PUSHMARK (SP);
		2216	PUTBACK;
		2217	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2218	SPAGAIN;
		2219	}
		2220
		2221	--incede;
		2222	}
		2223

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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 1.245 by root, Mon Sep 22 05:40:21 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 1.245 by root, Mon Sep 22 05:40:21 2008 UTC