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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.335 by root, Thu Dec 4 04:31:41 2008 UTC vs.
Revision 1.381 by root, Sat Oct 23 09:28:50 2010 UTC

		1	/* this works around a bug in mingw32 providing a non-working setjmp */
		2	#define USE_NO_MINGW_SETJMP_TWO_ARGS
		3
		4	#define NDEBUG 1
		5
1	#include "libcoro/coro.c"	6	#include "libcoro/coro.c"
2		7
3	#define PERL_NO_GET_CONTEXT	8	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	9	#define PERL_EXT
5		10
6	#include "EXTERN.h"	11	#include "EXTERN.h"
7	#include "perl.h"	12	#include "perl.h"
8	#include "XSUB.h"	13	#include "XSUB.h"
9	#include "perliol.h"	14	#include "perliol.h"
10		15
11	#include "patchlevel.h"	16	#include "schmorp.h"
12		17
13	#include <stdio.h>	18	#include <stdio.h>
14	#include <errno.h>	19	#include <errno.h>
15	#include <assert.h>	20	#include <assert.h>
		21
		22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
16		25
17	#ifdef WIN32	26	#ifdef WIN32
18	# undef setjmp	27	# undef setjmp
19	# undef longjmp	28	# undef longjmp
20	# undef _exit	29	# undef _exit
…		…
51	#endif	60	#endif
52		61
53	/* the maximum number of idle cctx that will be pooled */	62	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	63	static int cctx_max_idle = 4;
55		64
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#ifndef Newx
107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108	#endif
109
110	/* 5.8.7 */
111	#ifndef SvRV_set
112	# define SvRV_set(s,v) SvRV(s) = (v)
113	#endif
114
115	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	65	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	66	# undef CORO_STACKGUARD
117	#endif	67	#endif
118		68
119	#ifndef CORO_STACKGUARD	69	#ifndef CORO_STACKGUARD
…		…
137		87
138	#define IN_DESTRUCT PL_dirty	88	#define IN_DESTRUCT PL_dirty
139		89
140	#if __GNUC__ >= 3	90	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	91	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	92	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	93	# define INLINE static inline
144	#else	94	#else
145	# define attribute(x)	95	# define attribute(x)
146	# define expect(expr,value) (expr)	96	# define expect(expr,value) (expr)
147	# define INLINE static	97	# define INLINE static
…		…
159	# if CORO_PTHREAD	109	# if CORO_PTHREAD
160	static void *coro_thx;	110	static void *coro_thx;
161	# endif	111	# endif
162	#endif	112	#endif
163		113
		114	#ifdef __linux
		115	# include <time.h> /* for timespec */
		116	# include <syscall.h> /* for SYS_* */
		117	# ifdef SYS_clock_gettime
		118	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		119	# define CORO_CLOCK_MONOTONIC 1
		120	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		121	# endif
		122	#endif
		123
164	static double (*nvtime)(); /* so why doesn't it take void? */	124	static double (*nvtime)(); /* so why doesn't it take void? */
		125	static void (*u2time)(pTHX_ UV ret[2]);
165		126
166	/* we hijack an hopefully unused CV flag for our purposes */	127	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	128	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	129	static OP *pp_slf (pTHX);
169		130
…		…
190	static SV *sv_pool_size;	151	static SV *sv_pool_size;
191	static SV *sv_async_pool_idle; /* description string */	152	static SV *sv_async_pool_idle; /* description string */
192	static AV *av_async_pool; /* idle pool */	153	static AV *av_async_pool; /* idle pool */
193	static SV *sv_Coro; /* class string */	154	static SV *sv_Coro; /* class string */
194	static CV *cv_pool_handler;	155	static CV *cv_pool_handler;
195	static CV *cv_coro_state_new;
196		156
197	/* Coro::AnyEvent */	157	/* Coro::AnyEvent */
198	static SV *sv_activity;	158	static SV *sv_activity;
		159
		160	/* enable processtime/realtime profiling */
		161	static char enable_times;
		162	typedef U32 coro_ts[2];
		163	static coro_ts time_real, time_cpu;
		164	static char times_valid;
199		165
200	static struct coro_cctx *cctx_first;	166	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	167	static int cctx_count, cctx_idle;
202		168
203	enum {	169	enum {
…		…
238	enum {	204	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	205	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	206	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	207	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	208	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		209	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	210	};
244		211
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	212	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	213	typedef struct
247	{	214	{
…		…
260	/* this is a structure representing a perl-level coroutine */	227	/* this is a structure representing a perl-level coroutine */
261	struct coro {	228	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	229	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	230	coro_cctx *cctx;
264		231
		232	/* ready queue */
		233	struct coro *next_ready;
		234
265	/* state data */	235	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	236	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	237	AV *mainstack;
268	perl_slots *slot; /* basically the saved sp */	238	perl_slots *slot; /* basically the saved sp */
269		239
…		…
285	/* async_pool */	255	/* async_pool */
286	SV *saved_deffh;	256	SV *saved_deffh;
287	SV *invoke_cb;	257	SV *invoke_cb;
288	AV *invoke_av;	258	AV *invoke_av;
289		259
		260	/* on_enter/on_leave */
		261	AV *on_enter;
		262	AV *on_leave;
		263
		264	/* swap_sv */
		265	AV *swap_sv;
		266
		267	/* times */
		268	coro_ts t_cpu, t_real;
		269
290	/* linked list */	270	/* linked list */
291	struct coro *next, *prev;	271	struct coro *next, *prev;
292	};	272	};
293		273
294	typedef struct coro *Coro__State;	274	typedef struct coro *Coro__State;
…		…
299	/* the mainr easonw e don't support windows process emulation */	279	/* the mainr easonw e don't support windows process emulation */
300	static struct CoroSLF slf_frame; /* the current slf frame */	280	static struct CoroSLF slf_frame; /* the current slf frame */
301		281
302	/** Coro ********************************************************************/	282	/** Coro ********************************************************************/
303		283
304	#define PRIO_MAX 3	284	#define CORO_PRIO_MAX 3
305	#define PRIO_HIGH 1	285	#define CORO_PRIO_HIGH 1
306	#define PRIO_NORMAL 0	286	#define CORO_PRIO_NORMAL 0
307	#define PRIO_LOW -1	287	#define CORO_PRIO_LOW -1
308	#define PRIO_IDLE -3	288	#define CORO_PRIO_IDLE -3
309	#define PRIO_MIN -4	289	#define CORO_PRIO_MIN -4
310		290
311	/* for Coro.pm */	291	/* for Coro.pm */
312	static SV *coro_current;	292	static SV *coro_current;
313	static SV *coro_readyhook;	293	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	294	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315	static CV *cv_coro_run, *cv_coro_terminate;	295	static CV *cv_coro_run, *cv_coro_terminate;
316	static struct coro *coro_first;	296	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	297	#define coro_nready coroapi.nready
		298
		299	/** Coro::Select ************************************************************/
		300
		301	static OP *(*coro_old_pp_sselect) (pTHX);
		302	static SV *coro_select_select;
		303
		304	/* horrible hack, but if it works... */
		305	static OP *
		306	coro_pp_sselect (pTHX)
		307	{
		308	dSP;
		309	PUSHMARK (SP - 4); /* fake argument list */
		310	XPUSHs (coro_select_select);
		311	PUTBACK;
		312
		313	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		314	PL_op->op_flags |= OPf_STACKED;
		315	PL_op->op_private = 0;
		316	return PL_ppaddr [OP_ENTERSUB](aTHX);
		317	}
318		318
319	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
320		320
321	static SV *	321	static SV *
322	coro_get_sv (pTHX_ const char *name, int create)	322	coro_get_sv (pTHX_ const char *name, int create)
…		…
346	get_hv (name, create);	346	get_hv (name, create);
347	#endif	347	#endif
348	return get_hv (name, create);	348	return get_hv (name, create);
349	}	349	}
350		350
351	/* may croak */	351	INLINE void
352	INLINE CV *	352	coro_times_update ()
353	coro_sv_2cv (pTHX_ SV *sv)
354	{	353	{
355	HV *st;	354	#ifdef coro_clock_gettime
356	GV *gvp;	355	struct timespec ts;
357	return sv_2cv (sv, &st, &gvp, 0);	356
		357	ts.tv_sec = ts.tv_nsec = 0;
		358	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		359	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		360
		361	ts.tv_sec = ts.tv_nsec = 0;
		362	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		363	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		364	#else
		365	dTHX;
		366	UV tv[2];
		367
		368	u2time (aTHX_ tv);
		369	time_real [0] = tv [0];
		370	time_real [1] = tv [1] * 1000;
		371	#endif
		372	}
		373
		374	INLINE void
		375	coro_times_add (struct coro *c)
		376	{
		377	c->t_real [1] += time_real [1];
		378	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		379	c->t_real [0] += time_real [0];
		380
		381	c->t_cpu [1] += time_cpu [1];
		382	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		383	c->t_cpu [0] += time_cpu [0];
		384	}
		385
		386	INLINE void
		387	coro_times_sub (struct coro *c)
		388	{
		389	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		390	c->t_real [1] -= time_real [1];
		391	c->t_real [0] -= time_real [0];
		392
		393	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		394	c->t_cpu [1] -= time_cpu [1];
		395	c->t_cpu [0] -= time_cpu [0];
358	}	396	}
359		397
360	/*****************************************************************************/	398	/*****************************************************************************/
361	/* magic glue */	399	/* magic glue */
362		400
…		…
462	static int	500	static int
463	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	501	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464	{	502	{
465	AV *padlist;	503	AV *padlist;
466	AV *av = (AV *)mg->mg_obj;	504	AV *av = (AV *)mg->mg_obj;
		505
		506	/* perl manages to free our internal AV and _then_ call us */
		507	if (IN_DESTRUCT)
		508	return 0;
467		509
468	/* casting is fun. */	510	/* casting is fun. */
469	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	511	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470	free_padlist (aTHX_ padlist);	512	free_padlist (aTHX_ padlist);
471		513
…		…
520	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	562	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521	}	563	}
522		564
523	/** load & save, init *******************************************************/	565	/** load & save, init *******************************************************/
524		566
		567	/* swap sv heads, at least logically */
		568	static void
		569	swap_svs (pTHX_ Coro__State c)
		570	{
		571	int i;
		572
		573	for (i = 0; i <= AvFILLp (c->swap_sv); )
		574	{
		575	SV *a = AvARRAY (c->swap_sv)[i++];
		576	SV *b = AvARRAY (c->swap_sv)[i++];
		577
		578	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		579	SV tmp;
		580
		581	/* swap sv_any */
		582	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		583
		584	/* swap sv_flags */
		585	SvFLAGS (&tmp) = SvFLAGS (a);
		586	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		587	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		588
		589	#if PERL_VERSION_ATLEAST (5,10,0)
		590	/* perl 5.10 complicates this _quite_ a bit, but it also is
		591	* is much faster, so no quarrels here. alternatively, we could
		592	* sv_upgrade to avoid this.
		593	*/
		594	{
		595	/* swap sv_u */
		596	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		597
		598	/* if SvANY points to the head, we need to adjust the pointers,
		599	* as the pointer for a still points to b, and maybe vice versa.
		600	*/
		601	#define svany_in_head(type) \
		602	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		603
		604	if (svany_in_head (SvTYPE (a)))
		605	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		606
		607	if (svany_in_head (SvTYPE (b)))
		608	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		609	}
		610	#endif
		611	}
		612	}
		613
		614	#define SWAP_SVS(coro) \
		615	if (expect_false ((coro)->swap_sv)) \
		616	swap_svs (aTHX_ (coro))
		617
		618	static void
		619	on_enterleave_call (pTHX_ SV *cb);
		620
525	static void	621	static void
526	load_perl (pTHX_ Coro__State c)	622	load_perl (pTHX_ Coro__State c)
527	{	623	{
528	perl_slots *slot = c->slot;	624	perl_slots *slot = c->slot;
529	c->slot = 0;	625	c->slot = 0;
…		…
556	PUTBACK;	652	PUTBACK;
557	}	653	}
558		654
559	slf_frame = c->slf_frame;	655	slf_frame = c->slf_frame;
560	CORO_THROW = c->except;	656	CORO_THROW = c->except;
		657
		658	if (expect_false (enable_times))
		659	{
		660	if (expect_false (!times_valid))
		661	coro_times_update ();
		662
		663	coro_times_sub (c);
		664	}
		665
		666	if (expect_false (c->on_enter))
		667	{
		668	int i;
		669
		670	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		671	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		672	}
		673
		674	SWAP_SVS (c);
561	}	675	}
562		676
563	static void	677	static void
564	save_perl (pTHX_ Coro__State c)	678	save_perl (pTHX_ Coro__State c)
565	{	679	{
		680	SWAP_SVS (c);
		681
		682	if (expect_false (c->on_leave))
		683	{
		684	int i;
		685
		686	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		687	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		688	}
		689
		690	times_valid = 0;
		691
		692	if (expect_false (enable_times))
		693	{
		694	coro_times_update (); times_valid = 1;
		695	coro_times_add (c);
		696	}
		697
566	c->except = CORO_THROW;	698	c->except = CORO_THROW;
567	c->slf_frame = slf_frame;	699	c->slf_frame = slf_frame;
568		700
569	{	701	{
570	dSP;	702	dSP;
…		…
583	{	715	{
584	while (expect_true (cxix >= 0))	716	while (expect_true (cxix >= 0))
585	{	717	{
586	PERL_CONTEXT *cx = &ccstk[cxix--];	718	PERL_CONTEXT *cx = &ccstk[cxix--];
587		719
588	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	720	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
589	{	721	{
590	CV *cv = cx->blk_sub.cv;	722	CV *cv = cx->blk_sub.cv;
591		723
592	if (expect_true (CvDEPTH (cv)))	724	if (expect_true (CvDEPTH (cv)))
593	{	725	{
…		…
617	/* we manually unroll here, as usually 2 slots is enough */	749	/* we manually unroll here, as usually 2 slots is enough */
618	if (SLOT_COUNT >= 1) CXINC;	750	if (SLOT_COUNT >= 1) CXINC;
619	if (SLOT_COUNT >= 2) CXINC;	751	if (SLOT_COUNT >= 2) CXINC;
620	if (SLOT_COUNT >= 3) CXINC;	752	if (SLOT_COUNT >= 3) CXINC;
621	{	753	{
622	int i;	754	unsigned int i;
623	for (i = 3; i < SLOT_COUNT; ++i)	755	for (i = 3; i < SLOT_COUNT; ++i)
624	CXINC;	756	CXINC;
625	}	757	}
626	cxstack_ix -= SLOT_COUNT; /* undo allocation */	758	cxstack_ix -= SLOT_COUNT; /* undo allocation */
627		759
…		…
769	#endif	901	#endif
770		902
771	/*	903	/*
772	* This overrides the default magic get method of %SIG elements.	904	* This overrides the default magic get method of %SIG elements.
773	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	905	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
774	* and instead of tryign to save and restore the hash elements, we just provide	906	* and instead of trying to save and restore the hash elements, we just provide
775	* readback here.	907	* readback here.
776	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
777	* not expecting this to actually change the hook. This is a potential problem
778	* when a schedule happens then, but we ignore this.
779	*/	908	*/
780	static int	909	static int
781	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	910	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782	{	911	{
783	const char *s = MgPV_nolen_const (mg);	912	const char *s = MgPV_nolen_const (mg);
…		…
836	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	965	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837		966
838	if (svp)	967	if (svp)
839	{	968	{
840	SV *old = *svp;	969	SV *old = *svp;
841	*svp = newSVsv (sv);	970	*svp = SvOK (sv) ? newSVsv (sv) : 0;
842	SvREFCNT_dec (old);	971	SvREFCNT_dec (old);
843	return 0;	972	return 0;
844	}	973	}
845	}	974	}
846		975
…		…
864	slf_check_repeat (pTHX_ struct CoroSLF *frame)	993	slf_check_repeat (pTHX_ struct CoroSLF *frame)
865	{	994	{
866	return 1;	995	return 1;
867	}	996	}
868		997
869	static UNOP coro_setup_op;	998	static UNOP init_perl_op;
870		999
871	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1000	static void NOINLINE /* noinline to keep it out of the transfer fast path */
872	coro_setup (pTHX_ struct coro *coro)	1001	init_perl (pTHX_ struct coro *coro)
873	{	1002	{
874	/*	1003	/*
875	* emulate part of the perl startup here.	1004	* emulate part of the perl startup here.
876	*/	1005	*/
877	coro_init_stacks (aTHX);	1006	coro_init_stacks (aTHX);
…		…
926	*/	1055	*/
927	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1056	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
928	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1057	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
929		1058
930	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1059	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
931	coro_setup_op.op_next = PL_op;	1060	init_perl_op.op_next = PL_op;
932	coro_setup_op.op_type = OP_ENTERSUB;	1061	init_perl_op.op_type = OP_ENTERSUB;
933	coro_setup_op.op_ppaddr = pp_slf;	1062	init_perl_op.op_ppaddr = pp_slf;
934	/* no flags etc. required, as an init function won't be called */	1063	/* no flags etc. required, as an init function won't be called */
935		1064
936	PL_op = (OP *)&coro_setup_op;	1065	PL_op = (OP *)&init_perl_op;
937		1066
938	/* copy throw, in case it was set before coro_setup */	1067	/* copy throw, in case it was set before init_perl */
939	CORO_THROW = coro->except;	1068	CORO_THROW = coro->except;
940	}
941		1069
		1070	SWAP_SVS (coro);
		1071
		1072	if (expect_false (enable_times))
		1073	{
		1074	coro_times_update ();
		1075	coro_times_sub (coro);
		1076	}
		1077	}
		1078
942	static void	1079	static void
943	coro_destruct_perl (pTHX_ struct coro *coro)	1080	coro_unwind_stacks (pTHX)
944	{	1081	{
945	if (!IN_DESTRUCT)	1082	if (!IN_DESTRUCT)
946	{	1083	{
947	/* restore all saved variables and stuff */	1084	/* restore all saved variables and stuff */
948	LEAVE_SCOPE (0);	1085	LEAVE_SCOPE (0);
…		…
956	POPSTACK_TO (PL_mainstack);	1093	POPSTACK_TO (PL_mainstack);
957		1094
958	/* unwind main stack */	1095	/* unwind main stack */
959	dounwind (-1);	1096	dounwind (-1);
960	}	1097	}
		1098	}
961		1099
962	SvREFCNT_dec (GvSV (PL_defgv));	1100	static void
963	SvREFCNT_dec (GvAV (PL_defgv));	1101	destroy_perl (pTHX_ struct coro *coro)
964	SvREFCNT_dec (GvSV (PL_errgv));	1102	{
965	SvREFCNT_dec (PL_defoutgv);	1103	SV *svf [9];
966	SvREFCNT_dec (PL_rs);
967	SvREFCNT_dec (GvSV (irsgv));
968	SvREFCNT_dec (GvHV (PL_hintgv));
969		1104
970	SvREFCNT_dec (PL_diehook);
971	SvREFCNT_dec (PL_warnhook);
972		1105	{
		1106	struct coro *current = SvSTATE_current;
		1107
		1108	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1109
		1110	save_perl (aTHX_ current);
		1111	load_perl (aTHX_ coro);
		1112
		1113	coro_unwind_stacks (aTHX);
		1114	coro_destruct_stacks (aTHX);
		1115
		1116	/* restore swapped sv's */
		1117	SWAP_SVS (coro);
		1118
		1119	// now save some sv's to be free'd later
		1120	svf [0] = GvSV (PL_defgv);
		1121	svf [1] = (SV *)GvAV (PL_defgv);
		1122	svf [2] = GvSV (PL_errgv);
		1123	svf [3] = (SV *)PL_defoutgv;
		1124	svf [4] = PL_rs;
		1125	svf [5] = GvSV (irsgv);
		1126	svf [6] = (SV *)GvHV (PL_hintgv);
		1127	svf [7] = PL_diehook;
		1128	svf [8] = PL_warnhook;
		1129	assert (9 == sizeof (svf) / sizeof (*svf));
		1130
		1131	load_perl (aTHX_ current);
		1132	}
		1133
		1134	{
		1135	unsigned int i;
		1136
		1137	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1138	SvREFCNT_dec (svf [i]);
		1139
973	SvREFCNT_dec (coro->saved_deffh);	1140	SvREFCNT_dec (coro->saved_deffh);
974	SvREFCNT_dec (coro->rouse_cb);	1141	SvREFCNT_dec (coro->rouse_cb);
975	SvREFCNT_dec (coro->invoke_cb);	1142	SvREFCNT_dec (coro->invoke_cb);
976	SvREFCNT_dec (coro->invoke_av);	1143	SvREFCNT_dec (coro->invoke_av);
977		1144	}
978	coro_destruct_stacks (aTHX);
979	}	1145	}
980		1146
981	INLINE void	1147	INLINE void
982	free_coro_mortal (pTHX)	1148	free_coro_mortal (pTHX)
983	{	1149	{
…		…
1180	/* somebody or something will hit me for both perl_run and PL_restartop */	1346	/* somebody or something will hit me for both perl_run and PL_restartop */
1181	PL_restartop = PL_op;	1347	PL_restartop = PL_op;
1182	perl_run (PL_curinterp);	1348	perl_run (PL_curinterp);
1183	/*	1349	/*
1184	* Unfortunately, there is no way to get at the return values of the	1350	* Unfortunately, there is no way to get at the return values of the
1185	* coro body here, as perl_run destroys these	1351	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1352	* runtime errors here, as this is just a random interpreter, not a thread.
1186	*/	1353	*/
1187		1354
1188	/*	1355	/*
1189	* If perl-run returns we assume exit() was being called or the coro	1356	* If perl-run returns we assume exit() was being called or the coro
1190	* fell off the end, which seems to be the only valid (non-bug)	1357	* fell off the end, which seems to be the only valid (non-bug)
…		…
1277	cctx_destroy (coro_cctx *cctx)	1444	cctx_destroy (coro_cctx *cctx)
1278	{	1445	{
1279	if (!cctx)	1446	if (!cctx)
1280	return;	1447	return;
1281		1448
1282	assert (cctx != cctx_current);//D temporary	1449	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1283		1450
1284	--cctx_count;	1451	--cctx_count;
1285	coro_destroy (&cctx->cctx);	1452	coro_destroy (&cctx->cctx);
1286		1453
1287	/* coro_transfer creates new, empty cctx's */	1454	/* coro_transfer creates new, empty cctx's */
…		…
1351	/* TODO: throwing up here is considered harmful */	1518	/* TODO: throwing up here is considered harmful */
1352		1519
1353	if (expect_true (prev != next))	1520	if (expect_true (prev != next))
1354	{	1521	{
1355	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1522	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1356	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1523	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1357		1524
1358	if (expect_false (next->flags & CF_RUNNING))
1359	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1360
1361	if (expect_false (next->flags & CF_DESTROYED))	1525	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1362	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1526	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1363		1527
1364	#if !PERL_VERSION_ATLEAST (5,10,0)	1528	#if !PERL_VERSION_ATLEAST (5,10,0)
1365	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1529	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1366	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1530	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1367	#endif	1531	#endif
…		…
1400	if (expect_false (next->flags & CF_NEW))	1564	if (expect_false (next->flags & CF_NEW))
1401	{	1565	{
1402	/* need to start coroutine */	1566	/* need to start coroutine */
1403	next->flags &= ~CF_NEW;	1567	next->flags &= ~CF_NEW;
1404	/* setup coroutine call */	1568	/* setup coroutine call */
1405	coro_setup (aTHX_ next);	1569	init_perl (aTHX_ next);
1406	}	1570	}
1407	else	1571	else
1408	load_perl (aTHX_ next);	1572	load_perl (aTHX_ next);
1409
1410	assert (!prev->cctx);//D temporary
1411		1573
1412	/* possibly untie and reuse the cctx */	1574	/* possibly untie and reuse the cctx */
1413	if (expect_true (	1575	if (expect_true (
1414	cctx_current->idle_sp == STACKLEVEL	1576	cctx_current->idle_sp == STACKLEVEL
1415	&& !(cctx_current->flags & CC_TRACE)	1577	&& !(cctx_current->flags & CC_TRACE)
…		…
1457	coro_state_destroy (pTHX_ struct coro *coro)	1619	coro_state_destroy (pTHX_ struct coro *coro)
1458	{	1620	{
1459	if (coro->flags & CF_DESTROYED)	1621	if (coro->flags & CF_DESTROYED)
1460	return 0;	1622	return 0;
1461		1623
1462	if (coro->on_destroy)	1624	if (coro->on_destroy && !PL_dirty)
1463	coro->on_destroy (aTHX_ coro);	1625	coro->on_destroy (aTHX_ coro);
1464		1626
1465	coro->flags |= CF_DESTROYED;	1627	coro->flags |= CF_DESTROYED;
1466		1628
1467	if (coro->flags & CF_READY)	1629	if (coro->flags & CF_READY)
…		…
1473	else	1635	else
1474	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1636	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1475		1637
1476	if (coro->mainstack	1638	if (coro->mainstack
1477	&& coro->mainstack != main_mainstack	1639	&& coro->mainstack != main_mainstack
		1640	&& coro->slot
1478	&& !PL_dirty)	1641	&& !PL_dirty)
1479	{
1480	struct coro temp;
1481
1482	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1483
1484	save_perl (aTHX_ &temp);
1485	load_perl (aTHX_ coro);
1486
1487	coro_destruct_perl (aTHX_ coro);	1642	destroy_perl (aTHX_ coro);
1488		1643
1489	load_perl (aTHX_ &temp);	1644	if (coro->next) coro->next->prev = coro->prev;
1490		1645	if (coro->prev) coro->prev->next = coro->next;
1491	coro->slot = 0;	1646	if (coro == coro_first) coro_first = coro->next;
1492	}
1493		1647
1494	cctx_destroy (coro->cctx);	1648	cctx_destroy (coro->cctx);
1495	SvREFCNT_dec (coro->startcv);	1649	SvREFCNT_dec (coro->startcv);
1496	SvREFCNT_dec (coro->args);	1650	SvREFCNT_dec (coro->args);
		1651	SvREFCNT_dec (coro->swap_sv);
1497	SvREFCNT_dec (CORO_THROW);	1652	SvREFCNT_dec (CORO_THROW);
1498
1499	if (coro->next) coro->next->prev = coro->prev;
1500	if (coro->prev) coro->prev->next = coro->next;
1501	if (coro == coro_first) coro_first = coro->next;
1502		1653
1503	return 1;	1654	return 1;
1504	}	1655	}
1505		1656
1506	static int	1657	static int
…		…
1556		1707
1557	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1708	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1558	TRANSFER (ta, 1);	1709	TRANSFER (ta, 1);
1559	}	1710	}
1560		1711
1561	/*****************************************************************************/
1562	/* gensub: simple closure generation utility */
1563
1564	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1565
1566	/* create a closure from XS, returns a code reference */
1567	/* the arg can be accessed via GENSUB_ARG from the callback */
1568	/* the callback must use dXSARGS/XSRETURN */
1569	static SV *
1570	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1571	{
1572	CV *cv = (CV *)newSV (0);
1573
1574	sv_upgrade ((SV *)cv, SVt_PVCV);
1575
1576	CvANON_on (cv);
1577	CvISXSUB_on (cv);
1578	CvXSUB (cv) = xsub;
1579	GENSUB_ARG = arg;
1580
1581	return newRV_noinc ((SV *)cv);
1582	}
1583
1584	/** Coro ********************************************************************/	1712	/** Coro ********************************************************************/
1585		1713
1586	INLINE void	1714	INLINE void
1587	coro_enq (pTHX_ struct coro *coro)	1715	coro_enq (pTHX_ struct coro *coro)
1588	{	1716	{
1589	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1717	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1590	}
1591		1718
1592	INLINE SV *	1719	SvREFCNT_inc_NN (coro->hv);
		1720
		1721	coro->next_ready = 0;
		1722	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1723	ready [1] = coro;
		1724	}
		1725
		1726	INLINE struct coro *
1593	coro_deq (pTHX)	1727	coro_deq (pTHX)
1594	{	1728	{
1595	int prio;	1729	int prio;
1596		1730
1597	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1731	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1598	if (AvFILLp (coro_ready [prio]) >= 0)	1732	{
1599	return av_shift (coro_ready [prio]);	1733	struct coro **ready = coro_ready [prio];
		1734
		1735	if (ready [0])
		1736	{
		1737	struct coro *coro = ready [0];
		1738	ready [0] = coro->next_ready;
		1739	return coro;
		1740	}
		1741	}
1600		1742
1601	return 0;	1743	return 0;
		1744	}
		1745
		1746	static void
		1747	invoke_sv_ready_hook_helper (void)
		1748	{
		1749	dTHX;
		1750	dSP;
		1751
		1752	ENTER;
		1753	SAVETMPS;
		1754
		1755	PUSHMARK (SP);
		1756	PUTBACK;
		1757	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1758
		1759	FREETMPS;
		1760	LEAVE;
1602	}	1761	}
1603		1762
1604	static int	1763	static int
1605	api_ready (pTHX_ SV *coro_sv)	1764	api_ready (pTHX_ SV *coro_sv)
1606	{	1765	{
1607	struct coro *coro;
1608	SV *sv_hook;
1609	void (*xs_hook)(void);
1610
1611	coro = SvSTATE (coro_sv);	1766	struct coro *coro = SvSTATE (coro_sv);
1612		1767
1613	if (coro->flags & CF_READY)	1768	if (coro->flags & CF_READY)
1614	return 0;	1769	return 0;
1615		1770
1616	coro->flags |= CF_READY;	1771	coro->flags |= CF_READY;
1617		1772
1618	sv_hook = coro_nready ? 0 : coro_readyhook;
1619	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1620
1621	coro_enq (aTHX_ coro);	1773	coro_enq (aTHX_ coro);
1622	++coro_nready;
1623		1774
1624	if (sv_hook)	1775	if (!coro_nready++)
1625	{	1776	if (coroapi.readyhook)
1626	dSP;	1777	coroapi.readyhook ();
1627
1628	ENTER;
1629	SAVETMPS;
1630
1631	PUSHMARK (SP);
1632	PUTBACK;
1633	call_sv (sv_hook, G_VOID | G_DISCARD);
1634
1635	FREETMPS;
1636	LEAVE;
1637	}
1638
1639	if (xs_hook)
1640	xs_hook ();
1641		1778
1642	return 1;	1779	return 1;
1643	}	1780	}
1644		1781
1645	static int	1782	static int
…		…
1668	static void	1805	static void
1669	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1806	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1670	{	1807	{
1671	for (;;)	1808	for (;;)
1672	{	1809	{
1673	SV *next_sv = coro_deq (aTHX);	1810	struct coro *next = coro_deq (aTHX);
1674		1811
1675	if (expect_true (next_sv))	1812	if (expect_true (next))
1676	{	1813	{
1677	struct coro *next = SvSTATE_hv (next_sv);
1678
1679	/* cannot transfer to destroyed coros, skip and look for next */	1814	/* cannot transfer to destroyed coros, skip and look for next */
1680	if (expect_false (next->flags & CF_DESTROYED))	1815	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1681	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1816	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1682	else	1817	else
1683	{	1818	{
1684	next->flags &= ~CF_READY;	1819	next->flags &= ~CF_READY;
1685	--coro_nready;	1820	--coro_nready;
1686		1821
…		…
1692	{	1827	{
1693	/* nothing to schedule: call the idle handler */	1828	/* nothing to schedule: call the idle handler */
1694	if (SvROK (sv_idle)	1829	if (SvROK (sv_idle)
1695	&& SvOBJECT (SvRV (sv_idle)))	1830	&& SvOBJECT (SvRV (sv_idle)))
1696	{	1831	{
		1832	if (SvRV (sv_idle) == SvRV (coro_current))
		1833	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1834
1697	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1835	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1698	api_ready (aTHX_ SvRV (sv_idle));	1836	api_ready (aTHX_ SvRV (sv_idle));
1699	--coro_nready;	1837	--coro_nready;
1700	}	1838	}
1701	else	1839	else
1702	{	1840	{
		1841	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1703	dSP;	1842	dSP;
1704		1843
1705	ENTER;	1844	ENTER;
1706	SAVETMPS;	1845	SAVETMPS;
1707		1846
…		…
1853	{	1992	{
1854	int i;	1993	int i;
1855	HV *hv = (HV *)SvRV (coro_current);	1994	HV *hv = (HV *)SvRV (coro_current);
1856	AV *av = newAV ();	1995	AV *av = newAV ();
1857		1996
		1997	/* items are actually not so common, so optimise for this case */
		1998	if (items)
		1999	{
1858	av_extend (av, items - 1);	2000	av_extend (av, items - 1);
		2001
1859	for (i = 0; i < items; ++i)	2002	for (i = 0; i < items; ++i)
1860	av_push (av, SvREFCNT_inc_NN (arg [i]));	2003	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2004	}
1861		2005
1862	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2006	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1863		2007
1864	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2008	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1865	api_ready (aTHX_ sv_manager);	2009	api_ready (aTHX_ sv_manager);
1866		2010
1867	frame->prepare = prepare_schedule;	2011	frame->prepare = prepare_schedule;
1868	frame->check = slf_check_repeat;	2012	frame->check = slf_check_repeat;
		2013
		2014	/* as a minor optimisation, we could unwind all stacks here */
		2015	/* but that puts extra pressure on pp_slf, and is not worth much */
		2016	/*coro_unwind_stacks (aTHX);*/
1869	}	2017	}
1870		2018
1871	/*****************************************************************************/	2019	/*****************************************************************************/
1872	/* async pool handler */	2020	/* async pool handler */
1873		2021
…		…
1951		2099
1952	static void	2100	static void
1953	coro_rouse_callback (pTHX_ CV *cv)	2101	coro_rouse_callback (pTHX_ CV *cv)
1954	{	2102	{
1955	dXSARGS;	2103	dXSARGS;
1956	SV *data = (SV *)GENSUB_ARG;	2104	SV *data = (SV *)S_GENSUB_ARG;
1957		2105
1958	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2106	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1959	{	2107	{
1960	/* first call, set args */	2108	/* first call, set args */
		2109	SV *coro = SvRV (data);
1961	AV *av = newAV ();	2110	AV *av = newAV ();
1962	SV *coro = SvRV (data);
1963		2111
1964	SvRV_set (data, (SV *)av);	2112	SvRV_set (data, (SV *)av);
1965	api_ready (aTHX_ coro);
1966	SvREFCNT_dec (coro);
1967		2113
1968	/* better take a full copy of the arguments */	2114	/* better take a full copy of the arguments */
1969	while (items--)	2115	while (items--)
1970	av_store (av, items, newSVsv (ST (items)));	2116	av_store (av, items, newSVsv (ST (items)));
		2117
		2118	api_ready (aTHX_ coro);
		2119	SvREFCNT_dec (coro);
1971	}	2120	}
1972		2121
1973	XSRETURN_EMPTY;	2122	XSRETURN_EMPTY;
1974	}	2123	}
1975		2124
…		…
1992		2141
1993	EXTEND (SP, AvFILLp (av) + 1);	2142	EXTEND (SP, AvFILLp (av) + 1);
1994	for (i = 0; i <= AvFILLp (av); ++i)	2143	for (i = 0; i <= AvFILLp (av); ++i)
1995	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2144	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1996		2145
1997	/* we have stolen the elements, so ste length to zero and free */	2146	/* we have stolen the elements, so set length to zero and free */
1998	AvFILLp (av) = -1;	2147	AvFILLp (av) = -1;
1999	av_undef (av);	2148	av_undef (av);
2000		2149
2001	PUTBACK;	2150	PUTBACK;
2002	}	2151	}
…		…
2026	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2175	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2027	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2176	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2028	croak ("Coro::rouse_wait called with illegal callback argument,");	2177	croak ("Coro::rouse_wait called with illegal callback argument,");
2029		2178
2030	{	2179	{
2031	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2180	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2032	SV *data = (SV *)GENSUB_ARG;	2181	SV *data = (SV *)S_GENSUB_ARG;
2033		2182
2034	frame->data = (void *)data;	2183	frame->data = (void *)data;
2035	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2184	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2036	frame->check = slf_check_rouse_wait;	2185	frame->check = slf_check_rouse_wait;
2037	}	2186	}
…		…
2041	coro_new_rouse_cb (pTHX)	2190	coro_new_rouse_cb (pTHX)
2042	{	2191	{
2043	HV *hv = (HV *)SvRV (coro_current);	2192	HV *hv = (HV *)SvRV (coro_current);
2044	struct coro *coro = SvSTATE_hv (hv);	2193	struct coro *coro = SvSTATE_hv (hv);
2045	SV *data = newRV_inc ((SV *)hv);	2194	SV *data = newRV_inc ((SV *)hv);
2046	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2195	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2047		2196
2048	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2197	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2049	SvREFCNT_dec (data); /* magicext increases the refcount */	2198	SvREFCNT_dec (data); /* magicext increases the refcount */
2050		2199
2051	SvREFCNT_dec (coro->rouse_cb);	2200	SvREFCNT_dec (coro->rouse_cb);
…		…
2276	if (PL_op->op_flags & OPf_STACKED)	2425	if (PL_op->op_flags & OPf_STACKED)
2277	{	2426	{
2278	if (items > slf_arga)	2427	if (items > slf_arga)
2279	{	2428	{
2280	slf_arga = items;	2429	slf_arga = items;
2281	free (slf_argv);	2430	Safefree (slf_argv);
2282	slf_argv = malloc (slf_arga * sizeof (SV *));	2431	New (0, slf_argv, slf_arga, SV *);
2283	}	2432	}
2284		2433
2285	slf_argc = items;	2434	slf_argc = items;
2286		2435
2287	for (i = 0; i < items; ++i)	2436	for (i = 0; i < items; ++i)
…		…
2292		2441
2293	PL_op->op_ppaddr = pp_slf;	2442	PL_op->op_ppaddr = pp_slf;
2294	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2443	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2295		2444
2296	PL_op = (OP *)&slf_restore;	2445	PL_op = (OP *)&slf_restore;
		2446	}
		2447
		2448	/*****************************************************************************/
		2449	/* dynamic wind */
		2450
		2451	static void
		2452	on_enterleave_call (pTHX_ SV *cb)
		2453	{
		2454	dSP;
		2455
		2456	PUSHSTACK;
		2457
		2458	PUSHMARK (SP);
		2459	PUTBACK;
		2460	call_sv (cb, G_VOID | G_DISCARD);
		2461	SPAGAIN;
		2462
		2463	POPSTACK;
		2464	}
		2465
		2466	static SV *
		2467	coro_avp_pop_and_free (pTHX_ AV **avp)
		2468	{
		2469	AV *av = *avp;
		2470	SV *res = av_pop (av);
		2471
		2472	if (AvFILLp (av) < 0)
		2473	{
		2474	*avp = 0;
		2475	SvREFCNT_dec (av);
		2476	}
		2477
		2478	return res;
		2479	}
		2480
		2481	static void
		2482	coro_pop_on_enter (pTHX_ void *coro)
		2483	{
		2484	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2485	SvREFCNT_dec (cb);
		2486	}
		2487
		2488	static void
		2489	coro_pop_on_leave (pTHX_ void *coro)
		2490	{
		2491	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2492	on_enterleave_call (aTHX_ sv_2mortal (cb));
2297	}	2493	}
2298		2494
2299	/*****************************************************************************/	2495	/*****************************************************************************/
2300	/* PerlIO::cede */	2496	/* PerlIO::cede */
2301		2497
…		…
2375	/* Coro::Semaphore & Coro::Signal */	2571	/* Coro::Semaphore & Coro::Signal */
2376		2572
2377	static SV *	2573	static SV *
2378	coro_waitarray_new (pTHX_ int count)	2574	coro_waitarray_new (pTHX_ int count)
2379	{	2575	{
2380	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2576	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2381	AV *av = newAV ();	2577	AV *av = newAV ();
2382	SV **ary;	2578	SV **ary;
2383		2579
2384	/* unfortunately, building manually saves memory */	2580	/* unfortunately, building manually saves memory */
2385	Newx (ary, 2, SV *);	2581	Newx (ary, 2, SV *);
…		…
2527	{	2723	{
2528	if (items >= 2)	2724	if (items >= 2)
2529	{	2725	{
2530	/* callback form */	2726	/* callback form */
2531	AV *av = (AV *)SvRV (arg [0]);	2727	AV *av = (AV *)SvRV (arg [0]);
2532	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2728	SV *cb_cv = s_get_cv_croak (arg [1]);
2533		2729
2534	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2730	av_push (av, SvREFCNT_inc_NN (cb_cv));
2535		2731
2536	if (SvIVX (AvARRAY (av)[0]) > 0)	2732	if (SvIVX (AvARRAY (av)[0]) > 0)
2537	coro_semaphore_adjust (aTHX_ av, 0);	2733	coro_semaphore_adjust (aTHX_ av, 0);
2538		2734
2539	frame->prepare = prepare_nop;	2735	frame->prepare = prepare_nop;
…		…
2563	AvARRAY (av)[0] = AvARRAY (av)[1];	2759	AvARRAY (av)[0] = AvARRAY (av)[1];
2564	AvARRAY (av)[1] = cb;	2760	AvARRAY (av)[1] = cb;
2565		2761
2566	cb = av_shift (av);	2762	cb = av_shift (av);
2567		2763
		2764	if (SvTYPE (cb) == SVt_PVCV)
		2765	{
		2766	dSP;
		2767	PUSHMARK (SP);
		2768	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2769	PUTBACK;
		2770	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2771	}
		2772	else
		2773	{
2568	api_ready (aTHX_ cb);	2774	api_ready (aTHX_ cb);
2569	sv_setiv (cb, 0); /* signal waiter */	2775	sv_setiv (cb, 0); /* signal waiter */
		2776	}
		2777
2570	SvREFCNT_dec (cb);	2778	SvREFCNT_dec (cb);
2571		2779
2572	--count;	2780	--count;
2573	}	2781	}
2574	}	2782	}
…		…
2583	static void	2791	static void
2584	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2792	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2585	{	2793	{
2586	AV *av = (AV *)SvRV (arg [0]);	2794	AV *av = (AV *)SvRV (arg [0]);
2587		2795
		2796	if (items >= 2)
		2797	{
		2798	SV *cb_cv = s_get_cv_croak (arg [1]);
		2799	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2800
2588	if (SvIVX (AvARRAY (av)[0]))	2801	if (SvIVX (AvARRAY (av)[0]))
		2802	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
		2803
		2804	frame->prepare = prepare_nop;
		2805	frame->check = slf_check_nop;
		2806	}
		2807	else if (SvIVX (AvARRAY (av)[0]))
2589	{	2808	{
2590	SvIVX (AvARRAY (av)[0]) = 0;	2809	SvIVX (AvARRAY (av)[0]) = 0;
2591	frame->prepare = prepare_nop;	2810	frame->prepare = prepare_nop;
2592	frame->check = slf_check_nop;	2811	frame->check = slf_check_nop;
2593	}	2812	}
2594	else	2813	else
2595	{	2814	{
2596	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2815	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2597		2816
2598	av_push (av, waiter);	2817	av_push (av, waiter);
2599		2818
2600	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2819	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2601	frame->prepare = prepare_schedule;	2820	frame->prepare = prepare_schedule;
…		…
2619		2838
2620	static void	2839	static void
2621	coro_aio_callback (pTHX_ CV *cv)	2840	coro_aio_callback (pTHX_ CV *cv)
2622	{	2841	{
2623	dXSARGS;	2842	dXSARGS;
2624	AV *state = (AV *)GENSUB_ARG;	2843	AV *state = (AV *)S_GENSUB_ARG;
2625	SV *coro = av_pop (state);	2844	SV *coro = av_pop (state);
2626	SV *data_sv = newSV (sizeof (struct io_state));	2845	SV *data_sv = newSV (sizeof (struct io_state));
2627		2846
2628	av_extend (state, items - 1);	2847	av_extend (state, items - 1);
2629		2848
…		…
2743		2962
2744	for (i = 0; i < items; ++i)	2963	for (i = 0; i < items; ++i)
2745	PUSHs (arg [i]);	2964	PUSHs (arg [i]);
2746		2965
2747	/* now push the callback closure */	2966	/* now push the callback closure */
2748	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2967	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2749		2968
2750	/* now call the AIO function - we assume our request is uncancelable */	2969	/* now call the AIO function - we assume our request is uncancelable */
2751	PUTBACK;	2970	PUTBACK;
2752	call_sv ((SV *)req, G_VOID | G_DISCARD);	2971	call_sv ((SV *)req, G_VOID | G_DISCARD);
2753	}	2972	}
2754		2973
2755	/* now that the requets is going, we loop toll we have a result */	2974	/* now that the request is going, we loop till we have a result */
2756	frame->data = (void *)state;	2975	frame->data = (void *)state;
2757	frame->prepare = prepare_schedule;	2976	frame->prepare = prepare_schedule;
2758	frame->check = slf_check_aio_req;	2977	frame->check = slf_check_aio_req;
2759	}	2978	}
2760		2979
…		…
2771	/*****************************************************************************/	2990	/*****************************************************************************/
2772		2991
2773	#if CORO_CLONE	2992	#if CORO_CLONE
2774	# include "clone.c"	2993	# include "clone.c"
2775	#endif	2994	#endif
		2995
		2996	/*****************************************************************************/
		2997
		2998	static SV *
		2999	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3000	{
		3001	SV *coro_sv;
		3002	struct coro *coro;
		3003	MAGIC *mg;
		3004	HV *hv;
		3005	SV *cb;
		3006	int i;
		3007
		3008	if (argc > 0)
		3009	{
		3010	cb = s_get_cv_croak (argv [0]);
		3011
		3012	if (!is_coro)
		3013	{
		3014	if (CvISXSUB (cb))
		3015	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3016
		3017	if (!CvROOT (cb))
		3018	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3019	}
		3020	}
		3021
		3022	Newz (0, coro, 1, struct coro);
		3023	coro->args = newAV ();
		3024	coro->flags = CF_NEW;
		3025
		3026	if (coro_first) coro_first->prev = coro;
		3027	coro->next = coro_first;
		3028	coro_first = coro;
		3029
		3030	coro->hv = hv = newHV ();
		3031	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3032	mg->mg_flags |= MGf_DUP;
		3033	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3034
		3035	if (argc > 0)
		3036	{
		3037	av_extend (coro->args, argc + is_coro - 1);
		3038
		3039	if (is_coro)
		3040	{
		3041	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3042	cb = (SV *)cv_coro_run;
		3043	}
		3044
		3045	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3046
		3047	for (i = 1; i < argc; i++)
		3048	av_push (coro->args, newSVsv (argv [i]));
		3049	}
		3050
		3051	return coro_sv;
		3052	}
2776		3053
2777	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3054	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2778		3055
2779	PROTOTYPES: DISABLE	3056	PROTOTYPES: DISABLE
2780		3057
…		…
2840		3117
2841	if (!svp) croak ("Time::HiRes is required");	3118	if (!svp) croak ("Time::HiRes is required");
2842	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3119	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2843		3120
2844	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3121	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3122
		3123	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3124	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2845	}	3125	}
2846		3126
2847	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3127	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2848	}	3128	}
2849		3129
2850	SV *	3130	SV *
2851	new (char *klass, ...)	3131	new (SV *klass, ...)
2852	ALIAS:	3132	ALIAS:
2853	Coro::new = 1	3133	Coro::new = 1
2854	CODE:	3134	CODE:
2855	{	3135	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2856	struct coro *coro;	3136	OUTPUT:
2857	MAGIC *mg;
2858	HV *hv;
2859	CV *cb;
2860	int i;
2861
2862	if (items > 1)
2863	{
2864	cb = coro_sv_2cv (aTHX_ ST (1));
2865
2866	if (!ix)
2867	{
2868	if (CvISXSUB (cb))
2869	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2870
2871	if (!CvROOT (cb))
2872	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2873	}
2874	}
2875
2876	Newz (0, coro, 1, struct coro);
2877	coro->args = newAV ();
2878	coro->flags = CF_NEW;
2879
2880	if (coro_first) coro_first->prev = coro;
2881	coro->next = coro_first;
2882	coro_first = coro;
2883
2884	coro->hv = hv = newHV ();
2885	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2886	mg->mg_flags |= MGf_DUP;
2887	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2888
2889	if (items > 1)
2890	{
2891	av_extend (coro->args, items - 1 + ix - 1);
2892
2893	if (ix)
2894	{
2895	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2896	cb = cv_coro_run;
2897	}
2898
2899	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2900
2901	for (i = 2; i < items; i++)
2902	av_push (coro->args, newSVsv (ST (i)));
2903	}
2904	}
2905	OUTPUT:
2906	RETVAL	3137	RETVAL
2907		3138
2908	void	3139	void
2909	transfer (...)	3140	transfer (...)
2910	PROTOTYPE: $$	3141	PROTOTYPE: $$
…		…
2999	eval = 1	3230	eval = 1
3000	CODE:	3231	CODE:
3001	{	3232	{
3002	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3233	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3003	{	3234	{
3004	struct coro temp;	3235	struct coro *current = SvSTATE_current;
3005		3236
3006	if (!(coro->flags & CF_RUNNING))	3237	if (current != coro)
3007	{	3238	{
3008	PUTBACK;	3239	PUTBACK;
3009	save_perl (aTHX_ &temp);	3240	save_perl (aTHX_ current);
3010	load_perl (aTHX_ coro);	3241	load_perl (aTHX_ coro);
		3242	SPAGAIN;
3011	}	3243	}
3012		3244
3013	{
3014	dSP;
3015	ENTER;
3016	SAVETMPS;
3017	PUTBACK;
3018	PUSHSTACK;	3245	PUSHSTACK;
		3246
3019	PUSHMARK (SP);	3247	PUSHMARK (SP);
		3248	PUTBACK;
3020		3249
3021	if (ix)	3250	if (ix)
3022	eval_sv (coderef, 0);	3251	eval_sv (coderef, 0);
3023	else	3252	else
3024	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3253	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3025		3254
3026	POPSTACK;	3255	POPSTACK;
3027	SPAGAIN;	3256	SPAGAIN;
3028	FREETMPS;
3029	LEAVE;
3030	PUTBACK;
3031	}
3032		3257
3033	if (!(coro->flags & CF_RUNNING))	3258	if (current != coro)
3034	{	3259	{
		3260	PUTBACK;
3035	save_perl (aTHX_ coro);	3261	save_perl (aTHX_ coro);
3036	load_perl (aTHX_ &temp);	3262	load_perl (aTHX_ current);
3037	SPAGAIN;	3263	SPAGAIN;
3038	}	3264	}
3039	}	3265	}
3040	}	3266	}
3041		3267
…		…
3045	ALIAS:	3271	ALIAS:
3046	is_ready = CF_READY	3272	is_ready = CF_READY
3047	is_running = CF_RUNNING	3273	is_running = CF_RUNNING
3048	is_new = CF_NEW	3274	is_new = CF_NEW
3049	is_destroyed = CF_DESTROYED	3275	is_destroyed = CF_DESTROYED
		3276	is_suspended = CF_SUSPENDED
3050	CODE:	3277	CODE:
3051	RETVAL = boolSV (coro->flags & ix);	3278	RETVAL = boolSV (coro->flags & ix);
3052	OUTPUT:	3279	OUTPUT:
3053	RETVAL	3280	RETVAL
3054		3281
3055	void	3282	void
3056	throw (Coro::State self, SV *throw = &PL_sv_undef)	3283	throw (Coro::State self, SV *exception = &PL_sv_undef)
3057	PROTOTYPE: $;$	3284	PROTOTYPE: $;$
3058	CODE:	3285	CODE:
3059	{	3286	{
3060	struct coro *current = SvSTATE_current;	3287	struct coro *current = SvSTATE_current;
3061	SV **throwp = self == current ? &CORO_THROW : &self->except;	3288	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3062	SvREFCNT_dec (*throwp);	3289	SvREFCNT_dec (*exceptionp);
3063	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3290	SvGETMAGIC (exception);
		3291	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3064	}	3292	}
3065		3293
3066	void	3294	void
3067	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3295	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3068	PROTOTYPE: $;$	3296	PROTOTYPE: $;$
…		…
3119	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3347	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3120		3348
3121	SV *tmp = *src; *src = *dst; *dst = tmp;	3349	SV *tmp = *src; *src = *dst; *dst = tmp;
3122	}	3350	}
3123		3351
		3352	void
		3353	cancel (Coro::State self)
		3354	CODE:
		3355	coro_state_destroy (aTHX_ self);
		3356	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3357
		3358
		3359	SV *
		3360	enable_times (int enabled = enable_times)
		3361	CODE:
		3362	{
		3363	RETVAL = boolSV (enable_times);
		3364
		3365	if (enabled != enable_times)
		3366	{
		3367	enable_times = enabled;
		3368
		3369	coro_times_update ();
		3370	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3371	}
		3372	}
		3373	OUTPUT:
		3374	RETVAL
		3375
		3376	void
		3377	times (Coro::State self)
		3378	PPCODE:
		3379	{
		3380	struct coro *current = SvSTATE (coro_current);
		3381
		3382	if (expect_false (current == self))
		3383	{
		3384	coro_times_update ();
		3385	coro_times_add (SvSTATE (coro_current));
		3386	}
		3387
		3388	EXTEND (SP, 2);
		3389	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3390	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3391
		3392	if (expect_false (current == self))
		3393	coro_times_sub (SvSTATE (coro_current));
		3394	}
		3395
		3396	void
		3397	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3398	CODE:
		3399	{
		3400	struct coro *current = SvSTATE_current;
		3401
		3402	if (current == coro)
		3403	SWAP_SVS (current);
		3404
		3405	if (!coro->swap_sv)
		3406	coro->swap_sv = newAV ();
		3407
		3408	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3409	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3410
		3411	if (current == coro)
		3412	SWAP_SVS (current);
		3413	}
		3414
3124		3415
3125	MODULE = Coro::State PACKAGE = Coro	3416	MODULE = Coro::State PACKAGE = Coro
3126		3417
3127	BOOT:	3418	BOOT:
3128	{	3419	{
3129	int i;
3130
3131	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3420	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3132	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3421	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3133	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3422	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3134	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3423	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3135	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3424	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
…		…
3139	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3428	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3140		3429
3141	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3430	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3142	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3431	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3143	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3432	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3144	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3433	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3145		3434
3146	coro_stash = gv_stashpv ("Coro", TRUE);	3435	coro_stash = gv_stashpv ("Coro", TRUE);
3147		3436
3148	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3437	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3149	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3438	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3150	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3439	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3151	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3440	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3152	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3441	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3153	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3442	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3154
3155	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3156	coro_ready[i] = newAV ();
3157		3443
3158	{	3444	{
3159	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3445	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3160		3446
3161	coroapi.schedule = api_schedule;	3447	coroapi.schedule = api_schedule;
…		…
3171	sv_setiv (sv, (IV)&coroapi);	3457	sv_setiv (sv, (IV)&coroapi);
3172	SvREADONLY_on (sv);	3458	SvREADONLY_on (sv);
3173	}	3459	}
3174	}	3460	}
3175		3461
		3462	SV *
		3463	async (...)
		3464	PROTOTYPE: &@
		3465	CODE:
		3466	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3467	api_ready (aTHX_ RETVAL);
		3468	OUTPUT:
		3469	RETVAL
		3470
3176	void	3471	void
3177	terminate (...)	3472	terminate (...)
3178	CODE:	3473	CODE:
3179	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3474	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3180		3475
…		…
3200		3495
3201	void	3496	void
3202	cede_notself (...)	3497	cede_notself (...)
3203	CODE:	3498	CODE:
3204	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3499	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3205
3206	void
3207	_cancel (Coro::State self)
3208	CODE:
3209	coro_state_destroy (aTHX_ self);
3210	coro_call_on_destroy (aTHX_ self);
3211		3500
3212	void	3501	void
3213	_set_current (SV *current)	3502	_set_current (SV *current)
3214	PROTOTYPE: $	3503	PROTOTYPE: $
3215	CODE:	3504	CODE:
…		…
3219	void	3508	void
3220	_set_readyhook (SV *hook)	3509	_set_readyhook (SV *hook)
3221	PROTOTYPE: $	3510	PROTOTYPE: $
3222	CODE:	3511	CODE:
3223	SvREFCNT_dec (coro_readyhook);	3512	SvREFCNT_dec (coro_readyhook);
		3513	SvGETMAGIC (hook);
		3514	if (SvOK (hook))
		3515	{
3224	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3516	coro_readyhook = newSVsv (hook);
		3517	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3518	}
		3519	else
		3520	{
		3521	coro_readyhook = 0;
		3522	CORO_READYHOOK = 0;
		3523	}
3225		3524
3226	int	3525	int
3227	prio (Coro::State coro, int newprio = 0)	3526	prio (Coro::State coro, int newprio = 0)
3228	PROTOTYPE: $;$	3527	PROTOTYPE: $;$
3229	ALIAS:	3528	ALIAS:
…		…
3235	if (items > 1)	3534	if (items > 1)
3236	{	3535	{
3237	if (ix)	3536	if (ix)
3238	newprio = coro->prio - newprio;	3537	newprio = coro->prio - newprio;
3239		3538
3240	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3539	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3241	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3540	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3242		3541
3243	coro->prio = newprio;	3542	coro->prio = newprio;
3244	}	3543	}
3245	}	3544	}
3246	OUTPUT:	3545	OUTPUT:
…		…
3261	RETVAL = coro_nready;	3560	RETVAL = coro_nready;
3262	OUTPUT:	3561	OUTPUT:
3263	RETVAL	3562	RETVAL
3264		3563
3265	void	3564	void
		3565	suspend (Coro::State self)
		3566	PROTOTYPE: $
		3567	CODE:
		3568	self->flags |= CF_SUSPENDED;
		3569
		3570	void
		3571	resume (Coro::State self)
		3572	PROTOTYPE: $
		3573	CODE:
		3574	self->flags &= ~CF_SUSPENDED;
		3575
		3576	void
3266	_pool_handler (...)	3577	_pool_handler (...)
3267	CODE:	3578	CODE:
3268	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3579	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3269		3580
3270	void	3581	void
…		…
3281	for (i = 1; i < items; ++i)	3592	for (i = 1; i < items; ++i)
3282	av_push (av, SvREFCNT_inc_NN (ST (i)));	3593	av_push (av, SvREFCNT_inc_NN (ST (i)));
3283		3594
3284	if ((SV *)hv == &PL_sv_undef)	3595	if ((SV *)hv == &PL_sv_undef)
3285	{	3596	{
3286	PUSHMARK (SP);	3597	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3287	EXTEND (SP, 2);
3288	PUSHs (sv_Coro);
3289	PUSHs ((SV *)cv_pool_handler);
3290	PUTBACK;
3291	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3292	SPAGAIN;
3293
3294	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3598	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3599	SvREFCNT_dec (sv);
3295	}	3600	}
3296		3601
3297	{	3602	{
3298	struct coro *coro = SvSTATE_hv (hv);	3603	struct coro *coro = SvSTATE_hv (hv);
3299		3604
…		…
3323	rouse_wait (...)	3628	rouse_wait (...)
3324	PROTOTYPE: ;$	3629	PROTOTYPE: ;$
3325	PPCODE:	3630	PPCODE:
3326	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3631	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3327		3632
		3633	void
		3634	on_enter (SV *block)
		3635	ALIAS:
		3636	on_leave = 1
		3637	PROTOTYPE: &
		3638	CODE:
		3639	{
		3640	struct coro *coro = SvSTATE_current;
		3641	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3642
		3643	block = s_get_cv_croak (block);
		3644
		3645	if (!*avp)
		3646	*avp = newAV ();
		3647
		3648	av_push (*avp, SvREFCNT_inc (block));
		3649
		3650	if (!ix)
		3651	on_enterleave_call (aTHX_ block);
		3652
		3653	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3654	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3655	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3656	}
		3657
3328		3658
3329	MODULE = Coro::State PACKAGE = PerlIO::cede	3659	MODULE = Coro::State PACKAGE = PerlIO::cede
3330		3660
3331	BOOT:	3661	BOOT:
3332	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3662	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3335	MODULE = Coro::State PACKAGE = Coro::Semaphore	3665	MODULE = Coro::State PACKAGE = Coro::Semaphore
3336		3666
3337	SV *	3667	SV *
3338	new (SV *klass, SV *count = 0)	3668	new (SV *klass, SV *count = 0)
3339	CODE:	3669	CODE:
		3670	{
		3671	int semcnt = 1;
		3672
		3673	if (count)
		3674	{
		3675	SvGETMAGIC (count);
		3676
		3677	if (SvOK (count))
		3678	semcnt = SvIV (count);
		3679	}
		3680
3340	RETVAL = sv_bless (	3681	RETVAL = sv_bless (
3341	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3682	coro_waitarray_new (aTHX_ semcnt),
3342	GvSTASH (CvGV (cv))	3683	GvSTASH (CvGV (cv))
3343	);	3684	);
		3685	}
3344	OUTPUT:	3686	OUTPUT:
3345	RETVAL	3687	RETVAL
3346		3688
3347	# helper for Coro::Channel	3689	# helper for Coro::Channel and others
3348	SV *	3690	SV *
3349	_alloc (int count)	3691	_alloc (int count)
3350	CODE:	3692	CODE:
3351	RETVAL = coro_waitarray_new (aTHX_ count);	3693	RETVAL = coro_waitarray_new (aTHX_ count);
3352	OUTPUT:	3694	OUTPUT:
…		…
3410	for (i = 1; i <= wcount; ++i)	3752	for (i = 1; i <= wcount; ++i)
3411	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3753	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3412	}	3754	}
3413	}	3755	}
3414		3756
		3757	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3758
		3759	void
		3760	_may_delete (SV *sem, int count, int extra_refs)
		3761	PPCODE:
		3762	{
		3763	AV *av = (AV *)SvRV (sem);
		3764
		3765	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3766	&& AvFILLp (av) == 0 /* no waiters, just count */
		3767	&& SvIV (AvARRAY (av)[0]) == count)
		3768	XSRETURN_YES;
		3769
		3770	XSRETURN_NO;
		3771	}
		3772
3415	MODULE = Coro::State PACKAGE = Coro::Signal	3773	MODULE = Coro::State PACKAGE = Coro::Signal
3416		3774
3417	SV *	3775	SV *
3418	new (SV *klass)	3776	new (SV *klass)
3419	CODE:	3777	CODE:
…		…
3490		3848
3491	void	3849	void
3492	_register (char *target, char *proto, SV *req)	3850	_register (char *target, char *proto, SV *req)
3493	CODE:	3851	CODE:
3494	{	3852	{
3495	CV *req_cv = coro_sv_2cv (aTHX_ req);	3853	SV *req_cv = s_get_cv_croak (req);
3496	/* newXSproto doesn't return the CV on 5.8 */	3854	/* newXSproto doesn't return the CV on 5.8 */
3497	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3855	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3498	sv_setpv ((SV *)slf_cv, proto);	3856	sv_setpv ((SV *)slf_cv, proto);
3499	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3857	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3500	}	3858	}
3501		3859
		3860	MODULE = Coro::State PACKAGE = Coro::Select
		3861
		3862	void
		3863	patch_pp_sselect ()
		3864	CODE:
		3865	if (!coro_old_pp_sselect)
		3866	{
		3867	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3868	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3869	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3870	}
		3871
		3872	void
		3873	unpatch_pp_sselect ()
		3874	CODE:
		3875	if (coro_old_pp_sselect)
		3876	{
		3877	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3878	coro_old_pp_sselect = 0;
		3879	}
		3880
		3881

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