[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 1.237 by root, Fri May 23 00:27:06 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);
317
318	return 0;	366	return 0;
319	}	367	}
320		368
321	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
322		371
323	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
324		376
325	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
326	SvMAGIC (cv) \	378	SvMAGIC (sv) \
327	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
328	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
329	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
330	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
331		386
332	static struct coro *	387	static struct coro *
333	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
334	{	389	{
335	HV *stash;	390	HV *stash;
…		…
347	/* very slow, but rare, check */	402	/* very slow, but rare, check */
348	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
349	croak ("Coro::State object required");	404	croak ("Coro::State object required");
350	}	405	}
351		406
352	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
353	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
354	}	409	}
355		410
356	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
357		412
358	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
359	static void	414	static void
360	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
361	{	416	{
362	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
363	AV *av;	418	AV *av;
364		419
365	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
366	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
367	else	422	else
…		…
379	}	434	}
380		435
381	static void	436	static void
382	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
383	{	438	{
384	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
385	AV *av;	440	AV *av;
386		441
387	if (expect_false (!mg))	442	if (expect_false (!mg))
388	{	443	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		444
395	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
396		446
397	if (expect_false (AvFILLp (av) >= AvMAX (av)))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
398	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
…		…
464		514
465	if (expect_true (CvDEPTH (cv)))	515	if (expect_true (CvDEPTH (cv)))
466	{	516	{
467	EXTEND (SP, 3);	517	EXTEND (SP, 3);
468	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
469	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
470	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
471		521
472	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
473	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
474	}	524	}
…		…
485		535
486	PUTBACK;	536	PUTBACK;
487	}	537	}
488		538
489	/* allocate some space on the context stack for our purposes */	539	/* allocate some space on the context stack for our purposes */
		540	/* we manually unroll here, as usually 2 slots is enough */
		541	if (SLOT_COUNT >= 1) CXINC;
		542	if (SLOT_COUNT >= 2) CXINC;
		543	if (SLOT_COUNT >= 3) CXINC;
490	{	544	{
491	/* we manually unroll here, as usually 2 slots is enough */
492	int i;	545	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)	546	for (i = 3; i < SLOT_COUNT; ++i)
497	CXINC;	547	CXINC;
498
499	cxstack_ix -= SLOT_COUNT; /* undo allocation */
500	}	548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
501		550
502	c->mainstack = PL_mainstack;	551	c->mainstack = PL_mainstack;
503		552
504	{	553	{
505	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
555		604
556	New(54,PL_savestack,24,ANY);	605	New(54,PL_savestack,24,ANY);
557	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
558	PL_savestack_max = 24;	607	PL_savestack_max = 24;
559		608
560	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
561	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
562	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
563	PL_retstack_max = 4;	612	PL_retstack_max = 4;
564	#endif	613	#endif
565	}	614	}
…		…
588		637
589	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
590	Safefree (PL_markstack);	639	Safefree (PL_markstack);
591	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
592	Safefree (PL_savestack);	641	Safefree (PL_savestack);
593	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
594	Safefree (PL_retstack);	643	Safefree (PL_retstack);
595	#endif	644	#endif
596	}	645	}
597		646
598	static size_t	647	static size_t
…		…
622	rss += slot->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
623	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
624	rss += slot->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
625	rss += slot->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
626		675
627	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
628	rss += slot->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
629	#endif	678	#endif
630	}	679	}
631		680
632	return rss;	681	return rss;
633	}	682	}
634		683
635	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688
		689	/*
		690	* This overrides the default magic get method of %SIG elements.
		691	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		692	* and instead of tryign to save and restore the hash elements, we just provide
		693	* readback here.
		694	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		695	* not expecting this to actually change the hook. This is a potential problem
		696	* when a schedule happens then, but we ignore this.
		697	*/
		698	static int
		699	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		700	{
		701	const char *s = MgPV_nolen_const (mg);
		702
		703	if (*s == '_')
		704	{
		705	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		706	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		707	}
		708
		709	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		710	}
		711
		712	static int
		713	coro_sigelem_set (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 old = svp;
		727	*svp = newSVsv (sv);
		728	SvREFCNT_dec (old);
		729	return 0;
		730	}
		731	}
		732
		733	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		734	}
636		735
637	static void	736	static void
638	coro_setup (pTHX_ struct coro *coro)	737	coro_setup (pTHX_ struct coro *coro)
639	{	738	{
640	/*	739	/*
…		…
649	PL_curpm = 0;	748	PL_curpm = 0;
650	PL_curpad = 0;	749	PL_curpad = 0;
651	PL_localizing = 0;	750	PL_localizing = 0;
652	PL_dirty = 0;	751	PL_dirty = 0;
653	PL_restartop = 0;	752	PL_restartop = 0;
654	PL_diehook = 0;	753	#if PERL_VERSION_ATLEAST (5,10,0)
655	PL_warnhook = 0;	754	PL_parser = 0;
		755	#endif
		756
		757	/* recreate the die/warn hooks */
		758	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		759	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
656		760
657	GvSV (PL_defgv) = newSV (0);	761	GvSV (PL_defgv) = newSV (0);
658	GvAV (PL_defgv) = coro->args; coro->args = 0;	762	GvAV (PL_defgv) = coro->args; coro->args = 0;
659	GvSV (PL_errgv) = newSV (0);	763	GvSV (PL_errgv) = newSV (0);
660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	764	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
675	PL_op = (OP *)&myop;	779	PL_op = (OP *)&myop;
676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	780	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
677	SPAGAIN;	781	SPAGAIN;
678	}	782	}
679		783
680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	784	/* this newly created coroutine might be run on an existing cctx which most
		785	* likely was suspended in set_stacklevel, called from entersub.
		786	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		787	* so we ENTER here for symmetry
		788	*/
		789	ENTER;
681	}	790	}
682		791
683	static void	792	static void
684	coro_destroy (pTHX_ struct coro *coro)	793	coro_destroy (pTHX_ struct coro *coro)
685	{	794	{
…		…
806	SAVETMPS;	915	SAVETMPS;
807	EXTEND (SP, 3);	916	EXTEND (SP, 3);
808	PUSHMARK (SP);	917	PUSHMARK (SP);
809	PUSHs (&PL_sv_yes);	918	PUSHs (&PL_sv_yes);
810	PUSHs (fullname);	919	PUSHs (fullname);
811	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	920	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
812	PUTBACK;	921	PUTBACK;
813	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	922	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);	923	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
815	SPAGAIN;	924	SPAGAIN;
816	FREETMPS;	925	FREETMPS;
…		…
852		961
853	/* inject a fake call to Coro::State::_cctx_init into the execution */	962	/* 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 */	963	/* _cctx_init should be careful, as it could be called at almost any time */
855	/* during execution of a perl program */	964	/* during execution of a perl program */
856	static void NOINLINE	965	static void NOINLINE
857	prepare_cctx (pTHX_ coro_cctx *cctx)	966	cctx_prepare (pTHX_ coro_cctx *cctx)
858	{	967	{
859	dSP;	968	dSP;
860	LOGOP myop;	969	LOGOP myop;
861		970
862	PL_top_env = &PL_start_env;	971	PL_top_env = &PL_start_env;
…		…
880		989
881	/*	990	/*
882	* this is a _very_ stripped down perl interpreter ;)	991	* this is a _very_ stripped down perl interpreter ;)
883	*/	992	*/
884	static void	993	static void
885	coro_run (void *arg)	994	cctx_run (void *arg)
886	{	995	{
887	dTHX;	996	dTHX;
888		997
889	/* coro_run is the alternative tail of transfer(), so unlock here. */	998	/* cctx_run is the alternative tail of transfer(), so unlock here. */
890	UNLOCK;	999	UNLOCK;
891		1000
892	/* we now skip the entersub that lead to transfer() */	1001	/* we now skip the entersub that lead to transfer() */
893	PL_op = PL_op->op_next;	1002	PL_op = PL_op->op_next;
894		1003
895	/* inject a fake subroutine call to cctx_init */	1004	/* inject a fake subroutine call to cctx_init */
896	prepare_cctx (aTHX_ (coro_cctx *)arg);	1005	cctx_prepare (aTHX_ (coro_cctx *)arg);
897		1006
898	/* somebody or something will hit me for both perl_run and PL_restartop */	1007	/* somebody or something will hit me for both perl_run and PL_restartop */
899	PL_restartop = PL_op;	1008	PL_restartop = PL_op;
900	perl_run (PL_curinterp);	1009	perl_run (PL_curinterp);
901		1010
…		…
920	++cctx_count;	1029	++cctx_count;
921		1030
922	Newz (0, cctx, 1, coro_cctx);	1031	Newz (0, cctx, 1, coro_cctx);
923		1032
924	#if HAVE_MMAP	1033	#if HAVE_MMAP
925
926	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1034	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
927	/* mmap supposedly does allocate-on-write for us */	1035	/* 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);	1036	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
929		1037
930	if (cctx->sptr != (void *)-1)	1038	if (cctx->sptr != (void *)-1)
…		…
951	stack_start = cctx->sptr;	1059	stack_start = cctx->sptr;
952	stack_size = cctx->ssize;	1060	stack_size = cctx->ssize;
953	}	1061	}
954		1062
955	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1063	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
956	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1064	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
957		1065
958	return cctx;	1066	return cctx;
959	}	1067	}
960		1068
961	static void	1069	static void
…		…
1033	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1141	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1034		1142
1035	if (expect_false (next->flags & CF_DESTROYED))	1143	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");	1144	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1037		1145
1038	if (
1039	#if PERL_VERSION_ATLEAST (5,9,0)	1146	#if !PERL_VERSION_ATLEAST (5,10,0)
1040	expect_false (PL_parser)
1041	#else
1042	expect_false (PL_lex_state != LEX_NOTPARSING)	1147	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1043	#endif
1044	)
1045	croak ("Coro::State::transfer called while parsing, but this is not supported");	1148	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1149	#endif
1046	}	1150	}
1047	}	1151	}
1048		1152
1049	/* always use the TRANSFER macro */	1153	/* always use the TRANSFER macro */
1050	static void NOINLINE	1154	static void NOINLINE
1051	transfer (pTHX_ struct coro prev, struct coro next)	1155	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1052	{	1156	{
1053	dSTACKLEVEL;	1157	dSTACKLEVEL;
		1158	static volatile int has_throw;
1054		1159
1055	/* sometimes transfer is only called to set idle_sp */	1160	/* sometimes transfer is only called to set idle_sp */
1056	if (expect_false (!next))	1161	if (expect_false (!next))
1057	{	1162	{
1058	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1163	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1073	prev->flags &= ~CF_RUNNING;	1178	prev->flags &= ~CF_RUNNING;
1074	next->flags \|= CF_RUNNING;	1179	next->flags \|= CF_RUNNING;
1075		1180
1076	LOCK;	1181	LOCK;
1077		1182
		1183	/* first get rid of the old state */
		1184	save_perl (aTHX_ prev);
		1185
1078	if (expect_false (next->flags & CF_NEW))	1186	if (expect_false (next->flags & CF_NEW))
1079	{	1187	{
1080	/* need to start coroutine */	1188	/* need to start coroutine */
1081	next->flags &= ~CF_NEW;	1189	next->flags &= ~CF_NEW;
1082	/* first get rid of the old state */
1083	save_perl (aTHX_ prev);
1084	/* setup coroutine call */	1190	/* setup coroutine call */
1085	coro_setup (aTHX_ next);	1191	coro_setup (aTHX_ next);
1086	}	1192	}
1087	else	1193	else
1088	{
1089	/* coroutine already started */
1090	save_perl (aTHX_ prev);
1091	load_perl (aTHX_ next);	1194	load_perl (aTHX_ next);
1092	}
1093		1195
1094	prev__cctx = prev->cctx;	1196	prev__cctx = prev->cctx;
1095		1197
1096	/* possibly "free" the cctx */	1198	/* possibly "free" the cctx */
1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1199	if (expect_true (
		1200	prev__cctx->idle_sp == STACKLEVEL
		1201	&& !(prev__cctx->flags & CC_TRACE)
		1202	&& !force_cctx
		1203	))
1098	{	1204	{
1099	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1205	/* 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));	1206	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1101		1207
1102	prev->cctx = 0;	1208	prev->cctx = 0;
1103		1209
1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1210	/* 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 */	1211	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1212	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1213	if (!next->cctx)
1107	next->cctx = cctx_get (aTHX);	1214	next->cctx = cctx_get (aTHX);
1108		1215
1109	cctx_put (prev__cctx);	1216	cctx_put (prev__cctx);
1110	}	1217	}
1111		1218
1112	++next->usecount;	1219	++next->usecount;
1113		1220
1114	if (expect_true (!next->cctx))	1221	if (expect_true (!next->cctx))
1115	next->cctx = cctx_get (aTHX);	1222	next->cctx = cctx_get (aTHX);
		1223
		1224	has_throw = !!next->throw;
1116		1225
1117	if (expect_false (prev__cctx != next->cctx))	1226	if (expect_false (prev__cctx != next->cctx))
1118	{	1227	{
1119	prev__cctx->top_env = PL_top_env;	1228	prev__cctx->top_env = PL_top_env;
1120	PL_top_env = next->cctx->top_env;	1229	PL_top_env = next->cctx->top_env;
…		…
1122	}	1231	}
1123		1232
1124	free_coro_mortal (aTHX);	1233	free_coro_mortal (aTHX);
1125	UNLOCK;	1234	UNLOCK;
1126		1235
1127	if (expect_false (prev->throw \|\| next->throw))	1236	if (expect_false (has_throw))
1128	{	1237	{
1129	struct coro *coro = SvSTATE (coro_current);	1238	struct coro *coro = SvSTATE (coro_current);
1130		1239
1131	if (coro->throw)	1240	if (coro->throw)
1132	{	1241	{
…		…
1142	struct transfer_args	1251	struct transfer_args
1143	{	1252	{
1144	struct coro prev, next;	1253	struct coro prev, next;
1145	};	1254	};
1146		1255
1147	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1256	#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)	1257	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1149		1258
1150	/ high level stuff ******************************************************/	1259	/ high level stuff ******************************************************/
1151		1260
1152	static int	1261	static int
…		…
1246	{	1355	{
1247	dTHX;	1356	dTHX;
1248	struct transfer_args ta;	1357	struct transfer_args ta;
1249		1358
1250	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1359	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1251	TRANSFER (ta);	1360	TRANSFER (ta, 1);
1252	}	1361	}
1253		1362
1254	/ Coro ******************************************************************/	1363	/ Coro ******************************************************************/
1255		1364
1256	static void	1365	static void
…		…
1258	{	1367	{
1259	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1368	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1260	}	1369	}
1261		1370
1262	static SV *	1371	static SV *
1263	coro_deq (pTHX_ int min_prio)	1372	coro_deq (pTHX)
1264	{	1373	{
1265	int prio = PRIO_MAX - PRIO_MIN;	1374	int prio;
1266		1375
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; )	1376	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1272	if (AvFILLp (coro_ready [prio]) >= 0)	1377	if (AvFILLp (coro_ready [prio]) >= 0)
1273	return av_shift (coro_ready [prio]);	1378	return av_shift (coro_ready [prio]);
1274		1379
1275	return 0;	1380	return 0;
1276	}	1381	}
…		…
1278	static int	1383	static int
1279	api_ready (SV *coro_sv)	1384	api_ready (SV *coro_sv)
1280	{	1385	{
1281	dTHX;	1386	dTHX;
1282	struct coro *coro;	1387	struct coro *coro;
		1388	SV *sv_hook;
		1389	void (*xs_hook)(void);
1283		1390
1284	if (SvROK (coro_sv))	1391	if (SvROK (coro_sv))
1285	coro_sv = SvRV (coro_sv);	1392	coro_sv = SvRV (coro_sv);
1286		1393
1287	coro = SvSTATE (coro_sv);	1394	coro = SvSTATE (coro_sv);
…		…
1290	return 0;	1397	return 0;
1291		1398
1292	coro->flags \|= CF_READY;	1399	coro->flags \|= CF_READY;
1293		1400
1294	LOCK;	1401	LOCK;
		1402
		1403	sv_hook = coro_nready ? 0 : coro_readyhook;
		1404	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1405
1295	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1406	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1296	++coro_nready;	1407	++coro_nready;
		1408
1297	UNLOCK;	1409	UNLOCK;
		1410
		1411	if (sv_hook)
		1412	{
		1413	dSP;
		1414
		1415	ENTER;
		1416	SAVETMPS;
		1417
		1418	PUSHMARK (SP);
		1419	PUTBACK;
		1420	call_sv (sv_hook, G_DISCARD);
		1421	SPAGAIN;
		1422
		1423	FREETMPS;
		1424	LEAVE;
		1425	}
		1426
		1427	if (xs_hook)
		1428	xs_hook ();
1298		1429
1299	return 1;	1430	return 1;
1300	}	1431	}
1301		1432
1302	static int	1433	static int
…		…
1312	SV prev_sv, next_sv;	1443	SV prev_sv, next_sv;
1313		1444
1314	for (;;)	1445	for (;;)
1315	{	1446	{
1316	LOCK;	1447	LOCK;
1317	next_sv = coro_deq (aTHX_ PRIO_MIN);	1448	next_sv = coro_deq (aTHX);
1318		1449
1319	/* nothing to schedule: call the idle handler */	1450	/* nothing to schedule: call the idle handler */
1320	if (expect_false (!next_sv))	1451	if (expect_false (!next_sv))
1321	{	1452	{
1322	dSP;	1453	dSP;
…		…
1326	SAVETMPS;	1457	SAVETMPS;
1327		1458
1328	PUSHMARK (SP);	1459	PUSHMARK (SP);
1329	PUTBACK;	1460	PUTBACK;
1330	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1461	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1462	SPAGAIN;
1331		1463
1332	FREETMPS;	1464	FREETMPS;
1333	LEAVE;	1465	LEAVE;
1334	continue;	1466	continue;
1335	}	1467	}
…		…
1390	{	1522	{
1391	dTHX;	1523	dTHX;
1392	struct transfer_args ta;	1524	struct transfer_args ta;
1393		1525
1394	prepare_schedule (aTHX_ &ta);	1526	prepare_schedule (aTHX_ &ta);
1395	TRANSFER (ta);	1527	TRANSFER (ta, 1);
1396	}	1528	}
1397		1529
1398	static int	1530	static int
1399	api_cede (void)	1531	api_cede (void)
1400	{	1532	{
…		…
1403		1535
1404	prepare_cede (aTHX_ &ta);	1536	prepare_cede (aTHX_ &ta);
1405		1537
1406	if (expect_true (ta.prev != ta.next))	1538	if (expect_true (ta.prev != ta.next))
1407	{	1539	{
1408	TRANSFER (ta);	1540	TRANSFER (ta, 1);
1409	return 1;	1541	return 1;
1410	}	1542	}
1411	else	1543	else
1412	return 0;	1544	return 0;
1413	}	1545	}
…		…
1418	dTHX;	1550	dTHX;
1419	struct transfer_args ta;	1551	struct transfer_args ta;
1420		1552
1421	if (prepare_cede_notself (aTHX_ &ta))	1553	if (prepare_cede_notself (aTHX_ &ta))
1422	{	1554	{
1423	TRANSFER (ta);	1555	TRANSFER (ta, 1);
1424	return 1;	1556	return 1;
1425	}	1557	}
1426	else	1558	else
1427	return 0;	1559	return 0;
1428	}	1560	}
…		…
1465	BOOT_PAGESIZE;	1597	BOOT_PAGESIZE;
1466		1598
1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1599	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1600	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1469		1601
		1602	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1603	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1604	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1605	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1606
		1607	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1608	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1609	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1610
1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1611	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1471		1612
1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1613	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1614	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1474	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1615	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
…		…
1478	main_top_env = PL_top_env;	1619	main_top_env = PL_top_env;
1479		1620
1480	while (main_top_env->je_prev)	1621	while (main_top_env->je_prev)
1481	main_top_env = main_top_env->je_prev;	1622	main_top_env = main_top_env->je_prev;
1482		1623
1483	coroapi.ver = CORO_API_VERSION;	1624	coroapi.ver = CORO_API_VERSION;
		1625	coroapi.rev = CORO_API_REVISION;
1484	coroapi.transfer = api_transfer;	1626	coroapi.transfer = api_transfer;
1485		1627
1486	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1628	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1487	}	1629	}
1488		1630
1489	SV *	1631	SV *
1490	new (char *klass, ...)	1632	new (char *klass, ...)
1491	CODE:	1633	CODE:
1492	{	1634	{
1493	struct coro *coro;	1635	struct coro *coro;
		1636	MAGIC *mg;
1494	HV *hv;	1637	HV *hv;
1495	int i;	1638	int i;
1496		1639
1497	Newz (0, coro, 1, struct coro);	1640	Newz (0, coro, 1, struct coro);
1498	coro->args = newAV ();	1641	coro->args = newAV ();
…		…
1501	if (coro_first) coro_first->prev = coro;	1644	if (coro_first) coro_first->prev = coro;
1502	coro->next = coro_first;	1645	coro->next = coro_first;
1503	coro_first = coro;	1646	coro_first = coro;
1504		1647
1505	coro->hv = hv = newHV ();	1648	coro->hv = hv = newHV ();
1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1649	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1650	mg->mg_flags \|= MGf_DUP;
1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1651	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1508		1652
1509	av_extend (coro->args, items - 1);	1653	av_extend (coro->args, items - 1);
1510	for (i = 1; i < items; i++)	1654	for (i = 1; i < items; i++)
1511	av_push (coro->args, newSVsv (ST (i)));	1655	av_push (coro->args, newSVsv (ST (i)));
…		…
1525	Coro::cede_notself = 4	1669	Coro::cede_notself = 4
1526	CODE:	1670	CODE:
1527	{	1671	{
1528	struct transfer_args ta;	1672	struct transfer_args ta;
1529		1673
		1674	PUTBACK;
1530	switch (ix)	1675	switch (ix)
1531	{	1676	{
1532	case 0:	1677	case 0:
1533	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1678	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1534	ta.next = 0;	1679	ta.next = 0;
…		…
1553	if (!prepare_cede_notself (aTHX_ &ta))	1698	if (!prepare_cede_notself (aTHX_ &ta))
1554	XSRETURN_EMPTY;	1699	XSRETURN_EMPTY;
1555		1700
1556	break;	1701	break;
1557	}	1702	}
		1703	SPAGAIN;
1558		1704
1559	BARRIER;	1705	BARRIER;
		1706	PUTBACK;
1560	TRANSFER (ta);	1707	TRANSFER (ta, 0);
1561		1708	SPAGAIN; /* might be the sp of a different coroutine now */
1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1709	/* be extra careful not to ever do anything after TRANSFER */
1563	XSRETURN_YES;
1564	}	1710	}
1565		1711
1566	bool	1712	bool
1567	_destroy (SV *coro_sv)	1713	_destroy (SV *coro_sv)
1568	CODE:	1714	CODE:
1569	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1715	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1570	OUTPUT:	1716	OUTPUT:
1571	RETVAL	1717	RETVAL
1572		1718
1573	void	1719	void
1574	_exit (code)	1720	_exit (int code)
1575	int code
1576	PROTOTYPE: $	1721	PROTOTYPE: $
1577	CODE:	1722	CODE:
1578	_exit (code);	1723	_exit (code);
1579		1724
1580	int	1725	int
…		…
1620	{	1765	{
1621	struct coro temp;	1766	struct coro temp;
1622		1767
1623	if (!(coro->flags & CF_RUNNING))	1768	if (!(coro->flags & CF_RUNNING))
1624	{	1769	{
		1770	PUTBACK;
1625	save_perl (aTHX_ &temp);	1771	save_perl (aTHX_ &temp);
1626	load_perl (aTHX_ coro);	1772	load_perl (aTHX_ coro);
1627	}	1773	}
1628		1774
1629	{	1775	{
1630	dSP;	1776	dSP;
1631	ENTER;	1777	ENTER;
1632	SAVETMPS;	1778	SAVETMPS;
		1779	PUTBACK;
		1780	PUSHSTACK;
1633	PUSHMARK (SP);	1781	PUSHMARK (SP);
1634	PUTBACK;
1635		1782
1636	if (ix)	1783	if (ix)
1637	eval_sv (coderef, 0);	1784	eval_sv (coderef, 0);
1638	else	1785	else
1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1786	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1640		1787
		1788	POPSTACK;
1641	SPAGAIN;	1789	SPAGAIN;
1642	FREETMPS;	1790	FREETMPS;
1643	LEAVE;	1791	LEAVE;
1644	PUTBACK;	1792	PUTBACK;
1645	}	1793	}
1646		1794
1647	if (!(coro->flags & CF_RUNNING))	1795	if (!(coro->flags & CF_RUNNING))
1648	{	1796	{
1649	save_perl (aTHX_ coro);	1797	save_perl (aTHX_ coro);
1650	load_perl (aTHX_ &temp);	1798	load_perl (aTHX_ &temp);
		1799	SPAGAIN;
1651	}	1800	}
1652	}	1801	}
1653	}	1802	}
1654		1803
1655	SV *	1804	SV *
…		…
1667		1816
1668	void	1817	void
1669	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1818	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1670		1819
1671	SV *	1820	SV *
1672	has_stack (Coro::State coro)	1821	has_cctx (Coro::State coro)
1673	PROTOTYPE: $	1822	PROTOTYPE: $
1674	CODE:	1823	CODE:
1675	RETVAL = boolSV (!!coro->cctx);	1824	RETVAL = boolSV (!!coro->cctx);
1676	OUTPUT:	1825	OUTPUT:
1677	RETVAL	1826	RETVAL
…		…
1696	case 1: RETVAL = coro->usecount; break;	1845	case 1: RETVAL = coro->usecount; break;
1697	}	1846	}
1698	OUTPUT:	1847	OUTPUT:
1699	RETVAL	1848	RETVAL
1700		1849
		1850	void
		1851	force_cctx ()
		1852	CODE:
		1853	struct coro *coro = SvSTATE (coro_current);
		1854	coro->cctx->idle_sp = 0;
1701		1855
1702	MODULE = Coro::State PACKAGE = Coro	1856	MODULE = Coro::State PACKAGE = Coro
1703		1857
1704	BOOT:	1858	BOOT:
1705	{	1859	{
1706	int i;	1860	int i;
1707		1861
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);	1862	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */	1863	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1864	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1714		1865
1715	coro_current = get_sv ("Coro::current", FALSE);	1866	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1716	SvREADONLY_on (coro_current);	1867	SvREADONLY_on (coro_current);
1717		1868
1718	coro_stash = gv_stashpv ("Coro", TRUE);	1869	coro_stash = gv_stashpv ("Coro", TRUE);
1719		1870
1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1871	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
1750	PROTOTYPE: $	1901	PROTOTYPE: $
1751	CODE:	1902	CODE:
1752	SvREFCNT_dec (SvRV (coro_current));	1903	SvREFCNT_dec (SvRV (coro_current));
1753	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1904	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1754		1905
		1906	void
		1907	_set_readyhook (SV *hook)
		1908	PROTOTYPE: $
		1909	CODE:
		1910	LOCK;
		1911	SvREFCNT_dec (coro_readyhook);
		1912	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1913	UNLOCK;
		1914
1755	int	1915	int
1756	prio (Coro::State coro, int newprio = 0)	1916	prio (Coro::State coro, int newprio = 0)
1757	ALIAS:	1917	ALIAS:
1758	nice = 1	1918	nice = 1
1759	CODE:	1919	CODE:
…		…
1795	PROTOTYPE: $;$	1955	PROTOTYPE: $;$
1796	CODE:	1956	CODE:
1797	SvREFCNT_dec (self->throw);	1957	SvREFCNT_dec (self->throw);
1798	self->throw = SvOK (throw) ? newSVsv (throw) : 0;	1958	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1799		1959
		1960	void
		1961	swap_defsv (Coro::State self)
		1962	PROTOTYPE: $
		1963	ALIAS:
		1964	swap_defav = 1
		1965	CODE:
		1966	if (!self->slot)
		1967	croak ("cannot swap state with coroutine that has no saved state");
		1968	else
		1969	{
		1970	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1971	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1972
		1973	SV tmp = src; src = dst; *dst = tmp;
		1974	}
		1975
1800	# for async_pool speedup	1976	# for async_pool speedup
1801	void	1977	void
1802	_pool_1 (SV *cb)	1978	_pool_1 (SV *cb)
1803	CODE:	1979	CODE:
1804	{	1980	{
…		…
1808	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1984	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1809	AV *invoke_av;	1985	AV *invoke_av;
1810	int i, len;	1986	int i, len;
1811		1987
1812	if (!invoke)	1988	if (!invoke)
		1989	{
		1990	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1813	croak ("\3async_pool terminate\2\n");	1991	croak ("\3async_pool terminate\2\n");
		1992	}
1814		1993
1815	SvREFCNT_dec (coro->saved_deffh);	1994	SvREFCNT_dec (coro->saved_deffh);
1816	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);	1995	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1817		1996
1818	hv_store (hv, "desc", sizeof ("desc") - 1,	1997	hv_store (hv, "desc", sizeof ("desc") - 1,
…		…
1844	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;	2023	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
1845	coro->saved_deffh = 0;	2024	coro->saved_deffh = 0;
1846		2025
1847	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2026	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1848	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2027	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2028	{
		2029	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1849	croak ("\3async_pool terminate\2\n");	2030	croak ("\3async_pool terminate\2\n");
		2031	}
1850		2032
1851	av_clear (GvAV (PL_defgv));	2033	av_clear (GvAV (PL_defgv));
1852	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2034	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1853	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2035	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1854		2036
…		…
1893	PL_laststype = data->laststype;	2075	PL_laststype = data->laststype;
1894	PL_laststatval = data->laststatval;	2076	PL_laststatval = data->laststatval;
1895	PL_statcache = data->statcache;	2077	PL_statcache = data->statcache;
1896	}	2078	}
1897		2079
		2080
		2081	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2082
		2083	BOOT:
		2084	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2085
		2086	SV *
		2087	_schedule (...)
		2088	PROTOTYPE: @
		2089	CODE:
		2090	{
		2091	static int incede;
		2092
		2093	api_cede_notself ();
		2094
		2095	++incede;
		2096	while (coro_nready >= incede && api_cede ())
		2097	;
		2098
		2099	sv_setsv (sv_activity, &PL_sv_undef);
		2100	if (coro_nready >= incede)
		2101	{
		2102	PUSHMARK (SP);
		2103	PUTBACK;
		2104	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2105	SPAGAIN;
		2106	}
		2107
		2108	--incede;
		2109	}
		2110

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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 1.237 by root, Fri May 23 00:27:06 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 1.237 by root, Fri May 23 00:27:06 2008 UTC