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Comparing Coro/Coro/State.xs (file contents):
Revision 1.359 by root, Mon Jun 29 05:07:19 2009 UTC vs.
Revision 1.402 by root, Sun May 22 13:07:23 2011 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>
16		21
17	#ifdef WIN32	22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
		25
		26	#if defined(_WIN32)
		27	# undef HAS_GETTIMEOFDAY
18	# undef setjmp	28	# undef setjmp
19	# undef longjmp	29	# undef longjmp
20	# undef _exit	30	# undef _exit
21	# define setjmp _setjmp /* deep magic */	31	# define setjmp _setjmp /* deep magic */
22	#else	32	#else
…		…
51	#endif	61	#endif
52		62
53	/* the maximum number of idle cctx that will be pooled */	63	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	64	static int cctx_max_idle = 4;
55		65
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	66	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	67	# undef CORO_STACKGUARD
117	#endif	68	#endif
118		69
119	#ifndef CORO_STACKGUARD	70	#ifndef CORO_STACKGUARD
…		…
170	# define CORO_CLOCK_THREAD_CPUTIME_ID 3	121	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
171	# endif	122	# endif
172	#endif	123	#endif
173		124
174	static double (*nvtime)(); /* so why doesn't it take void? */	125	static double (*nvtime)(); /* so why doesn't it take void? */
		126	static void (*u2time)(pTHX_ UV ret[2]);
175		127
176	/* we hijack an hopefully unused CV flag for our purposes */	128	/* we hijack an hopefully unused CV flag for our purposes */
177	#define CVf_SLF 0x4000	129	#define CVf_SLF 0x4000
178	static OP *pp_slf (pTHX);	130	static OP *pp_slf (pTHX);
		131	static void slf_destroy (pTHX_ struct coro *coro);
179		132
180	static U32 cctx_gen;	133	static U32 cctx_gen;
181	static size_t cctx_stacksize = CORO_STACKSIZE;	134	static size_t cctx_stacksize = CORO_STACKSIZE;
182	static struct CoroAPI coroapi;	135	static struct CoroAPI coroapi;
183	static AV *main_mainstack; /* used to differentiate between $main and others */	136	static AV *main_mainstack; /* used to differentiate between $main and others */
…		…
200	static SV *sv_pool_size;	153	static SV *sv_pool_size;
201	static SV *sv_async_pool_idle; /* description string */	154	static SV *sv_async_pool_idle; /* description string */
202	static AV *av_async_pool; /* idle pool */	155	static AV *av_async_pool; /* idle pool */
203	static SV *sv_Coro; /* class string */	156	static SV *sv_Coro; /* class string */
204	static CV *cv_pool_handler;	157	static CV *cv_pool_handler;
205	static CV *cv_coro_state_new;
206		158
207	/* Coro::AnyEvent */	159	/* Coro::AnyEvent */
208	static SV *sv_activity;	160	static SV *sv_activity;
209		161
210	/* enable processtime/realtime profiling */	162	/* enable processtime/realtime profiling */
211	static char profile_times;	163	static char enable_times;
212	typedef U32 coro_ts[2];	164	typedef U32 coro_ts[2];
		165	static coro_ts time_real, time_cpu;
		166	static char times_valid;
213		167
214	static struct coro_cctx *cctx_first;	168	static struct coro_cctx *cctx_first;
215	static int cctx_count, cctx_idle;	169	static int cctx_count, cctx_idle;
216		170
217	enum {	171	enum
		172	{
218	CC_MAPPED = 0x01,	173	CC_MAPPED = 0x01,
219	CC_NOREUSE = 0x02, /* throw this away after tracing */	174	CC_NOREUSE = 0x02, /* throw this away after tracing */
220	CC_TRACE = 0x04,	175	CC_TRACE = 0x04,
221	CC_TRACE_SUB = 0x08, /* trace sub calls */	176	CC_TRACE_SUB = 0x08, /* trace sub calls */
222	CC_TRACE_LINE = 0x10, /* trace each statement */	177	CC_TRACE_LINE = 0x10, /* trace each statement */
…		…
243	int valgrind_id;	198	int valgrind_id;
244	#endif	199	#endif
245	unsigned char flags;	200	unsigned char flags;
246	} coro_cctx;	201	} coro_cctx;
247		202
248	coro_cctx *cctx_current; /* the currently running cctx */	203	static coro_cctx *cctx_current; /* the currently running cctx */
249		204
250	/*****************************************************************************/	205	/*****************************************************************************/
251		206
		207	static MGVTBL coro_state_vtbl;
		208
252	enum {	209	enum
		210	{
253	CF_RUNNING = 0x0001, /* coroutine is running */	211	CF_RUNNING = 0x0001, /* coroutine is running */
254	CF_READY = 0x0002, /* coroutine is ready */	212	CF_READY = 0x0002, /* coroutine is ready */
255	CF_NEW = 0x0004, /* has never been switched to */	213	CF_NEW = 0x0004, /* has never been switched to */
256	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	214	CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
257	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */	215	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
		216	CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
258	};	217	};
259		218
260	/* the structure where most of the perl state is stored, overlaid on the cxstack */	219	/* the structure where most of the perl state is stored, overlaid on the cxstack */
261	typedef struct	220	typedef struct
262	{	221	{
…		…
268	#define VAR(name,type) type name;	227	#define VAR(name,type) type name;
269	# include "state.h"	228	# include "state.h"
270	#undef VAR	229	#undef VAR
271	} perl_slots;	230	} perl_slots;
272		231
		232	// how many context stack entries do we need for perl_slots
273	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))	233	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
274		234
275	/* this is a structure representing a perl-level coroutine */	235	/* this is a structure representing a perl-level coroutine */
276	struct coro {	236	struct coro
		237	{
277	/* the C coroutine allocated to this perl coroutine, if any */	238	/* the C coroutine allocated to this perl coroutine, if any */
278	coro_cctx *cctx;	239	coro_cctx *cctx;
279		240
280	/* ready queue */	241	/* ready queue */
281	struct coro *next_ready;	242	struct coro *next_ready;
…		…
283	/* state data */	244	/* state data */
284	struct CoroSLF slf_frame; /* saved slf frame */	245	struct CoroSLF slf_frame; /* saved slf frame */
285	AV *mainstack;	246	AV *mainstack;
286	perl_slots *slot; /* basically the saved sp */	247	perl_slots *slot; /* basically the saved sp */
287		248
288	CV *startcv; /* the CV to execute */	249	CV *startcv; /* the CV to execute */
289	AV *args; /* data associated with this coroutine (initial args) */	250	AV *args; /* data associated with this coroutine (initial args) */
290	int refcnt; /* coroutines are refcounted, yes */
291	int flags; /* CF_ flags */	251	int flags; /* CF_ flags */
292	HV *hv; /* the perl hash associated with this coro, if any */	252	HV *hv; /* the perl hash associated with this coro, if any */
293	void (*on_destroy)(pTHX_ struct coro *coro);
294		253
295	/* statistics */	254	/* statistics */
296	int usecount; /* number of transfers to this coro */	255	int usecount; /* number of transfers to this coro */
297		256
298	/* coro process data */	257	/* coro process data */
299	int prio;	258	int prio;
300	SV *except; /* exception to be thrown */	259	SV *except; /* exception to be thrown */
301	SV *rouse_cb;	260	SV *rouse_cb; /* last rouse callback */
		261	AV *on_destroy; /* callbacks or coros to notify on destroy */
		262	AV *status; /* the exit status list */
302		263
303	/* async_pool */	264	/* async_pool */
304	SV *saved_deffh;	265	SV *saved_deffh;
305	SV *invoke_cb;	266	SV *invoke_cb;
306	AV *invoke_av;	267	AV *invoke_av;
307		268
308	/* on_enter/on_leave */	269	/* on_enter/on_leave */
309	AV *on_enter;	270	AV *on_enter;
310	AV *on_leave;	271	AV *on_leave;
311		272
		273	/* swap_sv */
		274	AV *swap_sv;
		275
		276	/* times */
		277	coro_ts t_cpu, t_real;
		278
312	/* linked list */	279	/* linked list */
313	struct coro *next, *prev;	280	struct coro *next, *prev;
314	};	281	};
315		282
316	typedef struct coro *Coro__State;	283	typedef struct coro *Coro__State;
317	typedef struct coro *Coro__State_or_hashref;	284	typedef struct coro *Coro__State_or_hashref;
318		285
319	/* the following variables are effectively part of the perl context */	286	/* the following variables are effectively part of the perl context */
320	/* and get copied between struct coro and these variables */	287	/* and get copied between struct coro and these variables */
321	/* the mainr easonw e don't support windows process emulation */	288	/* the main reason we don't support windows process emulation */
322	static struct CoroSLF slf_frame; /* the current slf frame */	289	static struct CoroSLF slf_frame; /* the current slf frame */
323		290
324	/** Coro ********************************************************************/	291	/** Coro ********************************************************************/
325		292
326	#define CORO_PRIO_MAX 3	293	#define CORO_PRIO_MAX 3
…		…
332		299
333	/* for Coro.pm */	300	/* for Coro.pm */
334	static SV *coro_current;	301	static SV *coro_current;
335	static SV *coro_readyhook;	302	static SV *coro_readyhook;
336	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */	303	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
337	static CV *cv_coro_run, *cv_coro_terminate;	304	static CV *cv_coro_run;
338	static struct coro *coro_first;	305	static struct coro *coro_first;
339	#define coro_nready coroapi.nready	306	#define coro_nready coroapi.nready
		307
		308	/** Coro::Select ************************************************************/
		309
		310	static OP *(*coro_old_pp_sselect) (pTHX);
		311	static SV *coro_select_select;
		312
		313	/* horrible hack, but if it works... */
		314	static OP *
		315	coro_pp_sselect (pTHX)
		316	{
		317	dSP;
		318	PUSHMARK (SP - 4); /* fake argument list */
		319	XPUSHs (coro_select_select);
		320	PUTBACK;
		321
		322	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		323	PL_op->op_flags |= OPf_STACKED;
		324	PL_op->op_private = 0;
		325	return PL_ppaddr [OP_ENTERSUB](aTHX);
		326	}
		327
		328	/** time stuff **************************************************************/
		329
		330	#ifdef HAS_GETTIMEOFDAY
		331
		332	static void
		333	coro_u2time (pTHX_ UV ret[2])
		334	{
		335	struct timeval tv;
		336	gettimeofday (&tv, 0);
		337
		338	ret [0] = tv.tv_sec;
		339	ret [1] = tv.tv_usec;
		340	}
		341
		342	static double
		343	coro_nvtime ()
		344	{
		345	struct timeval tv;
		346	gettimeofday (&tv, 0);
		347
		348	return tv.tv_sec + tv.tv_usec * 1e-6;
		349	}
		350
		351	static void
		352	time_init (pTHX)
		353	{
		354	nvtime = coro_nvtime;
		355	u2time = coro_u2time;
		356	}
		357
		358	#else
		359
		360	static void
		361	time_init (pTHX)
		362	{
		363	SV **svp;
		364
		365	require_pv ("Time/HiRes.pm");
		366
		367	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		368
		369	if (!svp) croak ("Time::HiRes is required, but missing. Caught");
		370	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
		371
		372	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		373
		374	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		375	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
		376	}
		377
		378	#endif
340		379
341	/** lowlevel stuff **********************************************************/	380	/** lowlevel stuff **********************************************************/
342		381
343	static SV *	382	static SV *
344	coro_get_sv (pTHX_ const char *name, int create)	383	coro_get_sv (pTHX_ const char *name, int create)
…		…
368	get_hv (name, create);	407	get_hv (name, create);
369	#endif	408	#endif
370	return get_hv (name, create);	409	return get_hv (name, create);
371	}	410	}
372		411
373	/* may croak */	412	INLINE void
374	INLINE CV *	413	coro_times_update ()
375	coro_sv_2cv (pTHX_ SV *sv)
376	{	414	{
377	HV *st;	415	#ifdef coro_clock_gettime
378	GV *gvp;	416	struct timespec ts;
379	CV *cv = sv_2cv (sv, &st, &gvp, 0);
380		417
381	if (!cv)	418	ts.tv_sec = ts.tv_nsec = 0;
382	croak ("code reference expected");	419	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		420	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
383		421
384	return cv;	422	ts.tv_sec = ts.tv_nsec = 0;
		423	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		424	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		425	#else
		426	dTHX;
		427	UV tv[2];
		428
		429	u2time (aTHX_ tv);
		430	time_real [0] = tv [0];
		431	time_real [1] = tv [1] * 1000;
		432	#endif
		433	}
		434
		435	INLINE void
		436	coro_times_add (struct coro *c)
		437	{
		438	c->t_real [1] += time_real [1];
		439	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		440	c->t_real [0] += time_real [0];
		441
		442	c->t_cpu [1] += time_cpu [1];
		443	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		444	c->t_cpu [0] += time_cpu [0];
		445	}
		446
		447	INLINE void
		448	coro_times_sub (struct coro *c)
		449	{
		450	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		451	c->t_real [1] -= time_real [1];
		452	c->t_real [0] -= time_real [0];
		453
		454	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		455	c->t_cpu [1] -= time_cpu [1];
		456	c->t_cpu [0] -= time_cpu [0];
385	}	457	}
386		458
387	/*****************************************************************************/	459	/*****************************************************************************/
388	/* magic glue */	460	/* magic glue */
389		461
…		…
401	: 0)	473	: 0)
402		474
403	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	475	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
404	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)	476	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
405		477
		478	INLINE MAGIC *
		479	SvSTATEhv_p (pTHX_ SV *coro)
		480	{
		481	MAGIC *mg;
		482
		483	if (expect_true (
		484	SvTYPE (coro) == SVt_PVHV
		485	&& (mg = CORO_MAGIC_state (coro))
		486	&& mg->mg_virtual == &coro_state_vtbl
		487	))
		488	return mg;
		489
		490	return 0;
		491	}
		492
406	INLINE struct coro *	493	INLINE struct coro *
407	SvSTATE_ (pTHX_ SV *coro)	494	SvSTATE_ (pTHX_ SV *coro)
408	{	495	{
409	HV *stash;
410	MAGIC *mg;	496	MAGIC *mg;
411		497
412	if (SvROK (coro))	498	if (SvROK (coro))
413	coro = SvRV (coro);	499	coro = SvRV (coro);
414		500
415	if (expect_false (SvTYPE (coro) != SVt_PVHV))	501	mg = SvSTATEhv_p (aTHX_ coro);
		502	if (!mg)
416	croak ("Coro::State object required");	503	croak ("Coro::State object required");
417		504
418	stash = SvSTASH (coro);
419	if (expect_false (stash != coro_stash && stash != coro_state_stash))
420	{
421	/* very slow, but rare, check */
422	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
423	croak ("Coro::State object required");
424	}
425
426	mg = CORO_MAGIC_state (coro);
427	return (struct coro *)mg->mg_ptr;	505	return (struct coro *)mg->mg_ptr;
428	}	506	}
429		507
430	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	508	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
431		509
…		…
492	AV *padlist;	570	AV *padlist;
493	AV *av = (AV *)mg->mg_obj;	571	AV *av = (AV *)mg->mg_obj;
494		572
495	/* perl manages to free our internal AV and _then_ call us */	573	/* perl manages to free our internal AV and _then_ call us */
496	if (IN_DESTRUCT)	574	if (IN_DESTRUCT)
497	return;	575	return 0;
498		576
499	/* casting is fun. */	577	/* casting is fun. */
500	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	578	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
501	free_padlist (aTHX_ padlist);	579	free_padlist (aTHX_ padlist);
502		580
…		…
551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	629	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
552	}	630	}
553		631
554	/** load & save, init *******************************************************/	632	/** load & save, init *******************************************************/
555		633
		634	/* swap sv heads, at least logically */
		635	static void
		636	swap_svs (pTHX_ Coro__State c)
		637	{
		638	int i;
		639
		640	for (i = 0; i <= AvFILLp (c->swap_sv); )
		641	{
		642	SV *a = AvARRAY (c->swap_sv)[i++];
		643	SV *b = AvARRAY (c->swap_sv)[i++];
		644
		645	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		646	SV tmp;
		647
		648	/* swap sv_any */
		649	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		650
		651	/* swap sv_flags */
		652	SvFLAGS (&tmp) = SvFLAGS (a);
		653	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		654	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		655
		656	#if PERL_VERSION_ATLEAST (5,10,0)
		657	/* perl 5.10 complicates this _quite_ a bit, but it also is
		658	* much faster, so no quarrels here. alternatively, we could
		659	* sv_upgrade to avoid this.
		660	*/
		661	{
		662	/* swap sv_u */
		663	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		664
		665	/* if SvANY points to the head, we need to adjust the pointers,
		666	* as the pointer for a still points to b, and maybe vice versa.
		667	*/
		668	#define svany_in_head(type) \
		669	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		670
		671	if (svany_in_head (SvTYPE (a)))
		672	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		673
		674	if (svany_in_head (SvTYPE (b)))
		675	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		676	}
		677	#endif
		678	}
		679	}
		680
		681	#define SWAP_SVS(coro) \
		682	if (expect_false ((coro)->swap_sv)) \
		683	swap_svs (aTHX_ (coro))
		684
556	static void	685	static void
557	on_enterleave_call (pTHX_ SV *cb);	686	on_enterleave_call (pTHX_ SV *cb);
558		687
559	static void	688	static void
560	load_perl (pTHX_ Coro__State c)	689	load_perl (pTHX_ Coro__State c)
…		…
591	}	720	}
592		721
593	slf_frame = c->slf_frame;	722	slf_frame = c->slf_frame;
594	CORO_THROW = c->except;	723	CORO_THROW = c->except;
595		724
		725	if (expect_false (enable_times))
		726	{
		727	if (expect_false (!times_valid))
		728	coro_times_update ();
		729
		730	coro_times_sub (c);
		731	}
		732
596	if (expect_false (c->on_enter))	733	if (expect_false (c->on_enter))
597	{	734	{
598	int i;	735	int i;
599		736
600	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	737	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
601	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	738	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
602	}	739	}
		740
		741	SWAP_SVS (c);
603	}	742	}
604		743
605	static void	744	static void
606	save_perl (pTHX_ Coro__State c)	745	save_perl (pTHX_ Coro__State c)
607	{	746	{
		747	SWAP_SVS (c);
		748
608	if (expect_false (c->on_leave))	749	if (expect_false (c->on_leave))
609	{	750	{
610	int i;	751	int i;
611		752
612	for (i = AvFILLp (c->on_leave); i >= 0; --i)	753	for (i = AvFILLp (c->on_leave); i >= 0; --i)
613	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);	754	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		755	}
		756
		757	times_valid = 0;
		758
		759	if (expect_false (enable_times))
		760	{
		761	coro_times_update (); times_valid = 1;
		762	coro_times_add (c);
614	}	763	}
615		764
616	c->except = CORO_THROW;	765	c->except = CORO_THROW;
617	c->slf_frame = slf_frame;	766	c->slf_frame = slf_frame;
618		767
…		…
662		811
663	PUTBACK;	812	PUTBACK;
664	}	813	}
665		814
666	/* allocate some space on the context stack for our purposes */	815	/* allocate some space on the context stack for our purposes */
667	/* we manually unroll here, as usually 2 slots is enough */	816	if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
668	if (SLOT_COUNT >= 1) CXINC;
669	if (SLOT_COUNT >= 2) CXINC;
670	if (SLOT_COUNT >= 3) CXINC;
671	{	817	{
672	int i;	818	unsigned int i;
		819
673	for (i = 3; i < SLOT_COUNT; ++i)	820	for (i = 0; i < SLOT_COUNT; ++i)
674	CXINC;	821	CXINC;
675	}	822
676	cxstack_ix -= SLOT_COUNT; /* undo allocation */	823	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		824	}
677		825
678	c->mainstack = PL_mainstack;	826	c->mainstack = PL_mainstack;
679		827
680	{	828	{
681	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	829	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
…		…
702	# define coro_init_stacks(thx) init_stacks ()	850	# define coro_init_stacks(thx) init_stacks ()
703	#else	851	#else
704	static void	852	static void
705	coro_init_stacks (pTHX)	853	coro_init_stacks (pTHX)
706	{	854	{
707	PL_curstackinfo = new_stackinfo(32, 8);	855	PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
708	PL_curstackinfo->si_type = PERLSI_MAIN;	856	PL_curstackinfo->si_type = PERLSI_MAIN;
709	PL_curstack = PL_curstackinfo->si_stack;	857	PL_curstack = PL_curstackinfo->si_stack;
710	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	858	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
711		859
712	PL_stack_base = AvARRAY(PL_curstack);	860	PL_stack_base = AvARRAY(PL_curstack);
…		…
819	#endif	967	#endif
820		968
821	/*	969	/*
822	* This overrides the default magic get method of %SIG elements.	970	* This overrides the default magic get method of %SIG elements.
823	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	971	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
824	* and instead of trying to save and restore the hash elements, we just provide	972	* and instead of trying to save and restore the hash elements (extremely slow),
825	* readback here.	973	* we just provide our own readback here.
826	*/	974	*/
827	static int	975	static int
828	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	976	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
829	{	977	{
830	const char *s = MgPV_nolen_const (mg);	978	const char *s = MgPV_nolen_const (mg);
…		…
911	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1059	slf_check_repeat (pTHX_ struct CoroSLF *frame)
912	{	1060	{
913	return 1;	1061	return 1;
914	}	1062	}
915		1063
916	static UNOP coro_setup_op;	1064	static UNOP init_perl_op;
917		1065
918	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1066	static void NOINLINE /* noinline to keep it out of the transfer fast path */
919	coro_setup (pTHX_ struct coro *coro)	1067	init_perl (pTHX_ struct coro *coro)
920	{	1068	{
921	/*	1069	/*
922	* emulate part of the perl startup here.	1070	* emulate part of the perl startup here.
923	*/	1071	*/
924	coro_init_stacks (aTHX);	1072	coro_init_stacks (aTHX);
…		…
931	PL_comppad_name_fill = 0;	1079	PL_comppad_name_fill = 0;
932	PL_comppad_name_floor = 0;	1080	PL_comppad_name_floor = 0;
933	PL_curpm = 0;	1081	PL_curpm = 0;
934	PL_curpad = 0;	1082	PL_curpad = 0;
935	PL_localizing = 0;	1083	PL_localizing = 0;
936	PL_dirty = 0;
937	PL_restartop = 0;	1084	PL_restartop = 0;
938	#if PERL_VERSION_ATLEAST (5,10,0)	1085	#if PERL_VERSION_ATLEAST (5,10,0)
939	PL_parser = 0;	1086	PL_parser = 0;
940	#endif	1087	#endif
941	PL_hints = 0;	1088	PL_hints = 0;
942		1089
943	/* recreate the die/warn hooks */	1090	/* recreate the die/warn hooks */
944	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1091	PL_diehook = SvREFCNT_inc (rv_diehook);
945	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1092	PL_warnhook = SvREFCNT_inc (rv_warnhook);
946		1093
947	GvSV (PL_defgv) = newSV (0);	1094	GvSV (PL_defgv) = newSV (0);
948	GvAV (PL_defgv) = coro->args; coro->args = 0;	1095	GvAV (PL_defgv) = coro->args; coro->args = 0;
949	GvSV (PL_errgv) = newSV (0);	1096	GvSV (PL_errgv) = newSV (0);
950	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1097	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
971	/* this newly created coroutine might be run on an existing cctx which most	1118	/* this newly created coroutine might be run on an existing cctx which most
972	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	1119	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
973	*/	1120	*/
974	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1121	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
975	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1122	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
		1123	slf_frame.destroy = 0;
976		1124
977	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1125	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
978	coro_setup_op.op_next = PL_op;	1126	init_perl_op.op_next = PL_op;
979	coro_setup_op.op_type = OP_ENTERSUB;	1127	init_perl_op.op_type = OP_ENTERSUB;
980	coro_setup_op.op_ppaddr = pp_slf;	1128	init_perl_op.op_ppaddr = pp_slf;
981	/* no flags etc. required, as an init function won't be called */	1129	/* no flags etc. required, as an init function won't be called */
982		1130
983	PL_op = (OP *)&coro_setup_op;	1131	PL_op = (OP *)&init_perl_op;
984		1132
985	/* copy throw, in case it was set before coro_setup */	1133	/* copy throw, in case it was set before init_perl */
986	CORO_THROW = coro->except;	1134	CORO_THROW = coro->except;
		1135
		1136	SWAP_SVS (coro);
		1137
		1138	if (expect_false (enable_times))
		1139	{
		1140	coro_times_update ();
		1141	coro_times_sub (coro);
		1142	}
987	}	1143	}
988		1144
989	static void	1145	static void
990	coro_unwind_stacks (pTHX)	1146	coro_unwind_stacks (pTHX)
991	{	1147	{
…		…
1006	dounwind (-1);	1162	dounwind (-1);
1007	}	1163	}
1008	}	1164	}
1009		1165
1010	static void	1166	static void
1011	coro_destruct_perl (pTHX_ struct coro *coro)	1167	destroy_perl (pTHX_ struct coro *coro)
1012	{	1168	{
1013	SV *svf [9];	1169	SV *svf [9];
1014		1170
1015	{	1171	{
		1172	SV *old_current = SvRV (coro_current);
1016	struct coro *current = SvSTATE_current;	1173	struct coro *current = SvSTATE (old_current);
1017		1174
1018	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));	1175	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1019		1176
1020	save_perl (aTHX_ current);	1177	save_perl (aTHX_ current);
		1178
		1179	/* this will cause transfer_check to croak on block*/
		1180	SvRV_set (coro_current, (SV *)coro->hv);
		1181
1021	load_perl (aTHX_ coro);	1182	load_perl (aTHX_ coro);
1022		1183
1023	coro_unwind_stacks (aTHX);	1184	coro_unwind_stacks (aTHX);
		1185
		1186	/* restore swapped sv's */
		1187	SWAP_SVS (coro);
		1188
1024	coro_destruct_stacks (aTHX);	1189	coro_destruct_stacks (aTHX);
1025		1190
1026	// now save some sv's to be free'd later	1191	// now save some sv's to be free'd later
1027	svf [0] = GvSV (PL_defgv);	1192	svf [0] = GvSV (PL_defgv);
1028	svf [1] = (SV *)GvAV (PL_defgv);	1193	svf [1] = (SV *)GvAV (PL_defgv);
…		…
1033	svf [6] = (SV *)GvHV (PL_hintgv);	1198	svf [6] = (SV *)GvHV (PL_hintgv);
1034	svf [7] = PL_diehook;	1199	svf [7] = PL_diehook;
1035	svf [8] = PL_warnhook;	1200	svf [8] = PL_warnhook;
1036	assert (9 == sizeof (svf) / sizeof (*svf));	1201	assert (9 == sizeof (svf) / sizeof (*svf));
1037		1202
		1203	SvRV_set (coro_current, old_current);
		1204
1038	load_perl (aTHX_ current);	1205	load_perl (aTHX_ current);
1039	}	1206	}
1040		1207
1041	{	1208	{
1042	int i;	1209	unsigned int i;
1043		1210
1044	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)	1211	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1045	SvREFCNT_dec (svf [i]);	1212	SvREFCNT_dec (svf [i]);
1046		1213
1047	SvREFCNT_dec (coro->saved_deffh);	1214	SvREFCNT_dec (coro->saved_deffh);
…		…
1054	INLINE void	1221	INLINE void
1055	free_coro_mortal (pTHX)	1222	free_coro_mortal (pTHX)
1056	{	1223	{
1057	if (expect_true (coro_mortal))	1224	if (expect_true (coro_mortal))
1058	{	1225	{
1059	SvREFCNT_dec (coro_mortal);	1226	SvREFCNT_dec ((SV *)coro_mortal);
1060	coro_mortal = 0;	1227	coro_mortal = 0;
1061	}	1228	}
1062	}	1229	}
1063		1230
1064	static int	1231	static int
…		…
1253	/* somebody or something will hit me for both perl_run and PL_restartop */	1420	/* somebody or something will hit me for both perl_run and PL_restartop */
1254	PL_restartop = PL_op;	1421	PL_restartop = PL_op;
1255	perl_run (PL_curinterp);	1422	perl_run (PL_curinterp);
1256	/*	1423	/*
1257	* Unfortunately, there is no way to get at the return values of the	1424	* Unfortunately, there is no way to get at the return values of the
1258	* coro body here, as perl_run destroys these	1425	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1426	* runtime errors here, as this is just a random interpreter, not a thread.
1259	*/	1427	*/
1260		1428
1261	/*	1429	/*
1262	* If perl-run returns we assume exit() was being called or the coro	1430	* If perl-run returns we assume exit() was being called or the coro
1263	* fell off the end, which seems to be the only valid (non-bug)	1431	* fell off the end, which seems to be the only valid (non-bug)
…		…
1350	cctx_destroy (coro_cctx *cctx)	1518	cctx_destroy (coro_cctx *cctx)
1351	{	1519	{
1352	if (!cctx)	1520	if (!cctx)
1353	return;	1521	return;
1354		1522
1355	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?	1523	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1356		1524
1357	--cctx_count;	1525	--cctx_count;
1358	coro_destroy (&cctx->cctx);	1526	coro_destroy (&cctx->cctx);
1359		1527
1360	/* coro_transfer creates new, empty cctx's */	1528	/* coro_transfer creates new, empty cctx's */
…		…
1426	if (expect_true (prev != next))	1594	if (expect_true (prev != next))
1427	{	1595	{
1428	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1596	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1429	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");	1597	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1430		1598
1431	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))	1599	if (expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1432	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");	1600	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1433		1601
1434	#if !PERL_VERSION_ATLEAST (5,10,0)	1602	#if !PERL_VERSION_ATLEAST (5,10,0)
1435	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1603	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1436	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1604	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
…		…
1470	if (expect_false (next->flags & CF_NEW))	1638	if (expect_false (next->flags & CF_NEW))
1471	{	1639	{
1472	/* need to start coroutine */	1640	/* need to start coroutine */
1473	next->flags &= ~CF_NEW;	1641	next->flags &= ~CF_NEW;
1474	/* setup coroutine call */	1642	/* setup coroutine call */
1475	coro_setup (aTHX_ next);	1643	init_perl (aTHX_ next);
1476	}	1644	}
1477	else	1645	else
1478	load_perl (aTHX_ next);	1646	load_perl (aTHX_ next);
1479		1647
1480	/* possibly untie and reuse the cctx */	1648	/* possibly untie and reuse the cctx */
…		…
1519	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))	1687	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1520	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1688	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1521		1689
1522	/** high level stuff ********************************************************/	1690	/** high level stuff ********************************************************/
1523		1691
		1692	/* this function is actually Coro, not Coro::State, but we call it from here */
		1693	/* because it is convenient - but it hasn't been declared yet for that reason */
1524	static int	1694	static void
		1695	coro_call_on_destroy (pTHX_ struct coro *coro);
		1696
		1697	static void
1525	coro_state_destroy (pTHX_ struct coro *coro)	1698	coro_state_destroy (pTHX_ struct coro *coro)
1526	{	1699	{
1527	if (coro->flags & CF_DESTROYED)	1700	if (coro->flags & CF_ZOMBIE)
1528	return 0;	1701	return;
1529		1702
1530	if (coro->on_destroy && !PL_dirty)
1531	coro->on_destroy (aTHX_ coro);	1703	slf_destroy (aTHX_ coro);
1532		1704
1533	coro->flags |= CF_DESTROYED;	1705	coro->flags |= CF_ZOMBIE;
1534		1706
1535	if (coro->flags & CF_READY)	1707	if (coro->flags & CF_READY)
1536	{	1708	{
1537	/* reduce nready, as destroying a ready coro effectively unreadies it */	1709	/* reduce nready, as destroying a ready coro effectively unreadies it */
1538	/* alternative: look through all ready queues and remove the coro */	1710	/* alternative: look through all ready queues and remove the coro */
1539	--coro_nready;	1711	--coro_nready;
1540	}	1712	}
1541	else	1713	else
1542	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1714	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
		1715
		1716	if (coro->next) coro->next->prev = coro->prev;
		1717	if (coro->prev) coro->prev->next = coro->next;
		1718	if (coro == coro_first) coro_first = coro->next;
1543		1719
1544	if (coro->mainstack	1720	if (coro->mainstack
1545	&& coro->mainstack != main_mainstack	1721	&& coro->mainstack != main_mainstack
1546	&& coro->slot	1722	&& coro->slot
1547	&& !PL_dirty)	1723	&& !PL_dirty)
1548	coro_destruct_perl (aTHX_ coro);	1724	destroy_perl (aTHX_ coro);
1549		1725
1550	cctx_destroy (coro->cctx);	1726	cctx_destroy (coro->cctx);
1551	SvREFCNT_dec (coro->startcv);	1727	SvREFCNT_dec (coro->startcv);
1552	SvREFCNT_dec (coro->args);	1728	SvREFCNT_dec (coro->args);
		1729	SvREFCNT_dec (coro->swap_sv);
1553	SvREFCNT_dec (CORO_THROW);	1730	SvREFCNT_dec (CORO_THROW);
1554		1731
1555	if (coro->next) coro->next->prev = coro->prev;	1732	coro_call_on_destroy (aTHX_ coro);
1556	if (coro->prev) coro->prev->next = coro->next;
1557	if (coro == coro_first) coro_first = coro->next;
1558		1733
1559	return 1;	1734	/* more destruction mayhem in coro_state_free */
1560	}	1735	}
1561		1736
1562	static int	1737	static int
1563	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1738	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1564	{	1739	{
1565	struct coro *coro = (struct coro *)mg->mg_ptr;	1740	struct coro *coro = (struct coro *)mg->mg_ptr;
1566	mg->mg_ptr = 0;	1741	mg->mg_ptr = 0;
1567		1742
1568	coro->hv = 0;
1569
1570	if (--coro->refcnt < 0)
1571	{
1572	coro_state_destroy (aTHX_ coro);	1743	coro_state_destroy (aTHX_ coro);
		1744	SvREFCNT_dec (coro->on_destroy);
		1745	SvREFCNT_dec (coro->status);
		1746
1573	Safefree (coro);	1747	Safefree (coro);
1574	}
1575		1748
1576	return 0;	1749	return 0;
1577	}	1750	}
1578		1751
1579	static int	1752	static int
1580	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)	1753	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1581	{	1754	{
1582	struct coro *coro = (struct coro *)mg->mg_ptr;	1755	/* called when perl clones the current process the slow way (windows process emulation) */
1583		1756	/* WE SIMply nuke the pointers in the copy, causing perl to croak */
1584	++coro->refcnt;	1757	mg->mg_ptr = 0;
		1758	mg->mg_virtual = 0;
1585		1759
1586	return 0;	1760	return 0;
1587	}	1761	}
1588		1762
1589	static MGVTBL coro_state_vtbl = {	1763	static MGVTBL coro_state_vtbl = {
…		…
1612		1786
1613	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1787	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1614	TRANSFER (ta, 1);	1788	TRANSFER (ta, 1);
1615	}	1789	}
1616		1790
1617	/*****************************************************************************/
1618	/* gensub: simple closure generation utility */
1619
1620	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1621
1622	/* create a closure from XS, returns a code reference */
1623	/* the arg can be accessed via GENSUB_ARG from the callback */
1624	/* the callback must use dXSARGS/XSRETURN */
1625	static SV *
1626	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1627	{
1628	CV *cv = (CV *)newSV (0);
1629
1630	sv_upgrade ((SV *)cv, SVt_PVCV);
1631
1632	CvANON_on (cv);
1633	CvISXSUB_on (cv);
1634	CvXSUB (cv) = xsub;
1635	GENSUB_ARG = arg;
1636
1637	return newRV_noinc ((SV *)cv);
1638	}
1639
1640	/** Coro ********************************************************************/	1791	/** Coro ********************************************************************/
1641		1792
1642	INLINE void	1793	INLINE void
1643	coro_enq (pTHX_ struct coro *coro)	1794	coro_enq (pTHX_ struct coro *coro)
1644	{	1795	{
…		…
1669	}	1820	}
1670		1821
1671	return 0;	1822	return 0;
1672	}	1823	}
1673		1824
		1825	static void
		1826	invoke_sv_ready_hook_helper (void)
		1827	{
		1828	dTHX;
		1829	dSP;
		1830
		1831	ENTER;
		1832	SAVETMPS;
		1833
		1834	PUSHMARK (SP);
		1835	PUTBACK;
		1836	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1837
		1838	FREETMPS;
		1839	LEAVE;
		1840	}
		1841
1674	static int	1842	static int
1675	api_ready (pTHX_ SV *coro_sv)	1843	api_ready (pTHX_ SV *coro_sv)
1676	{	1844	{
1677	struct coro *coro;
1678	SV *sv_hook;
1679	void (*xs_hook)(void);
1680
1681	coro = SvSTATE (coro_sv);	1845	struct coro *coro = SvSTATE (coro_sv);
1682		1846
1683	if (coro->flags & CF_READY)	1847	if (coro->flags & CF_READY)
1684	return 0;	1848	return 0;
1685		1849
1686	coro->flags |= CF_READY;	1850	coro->flags |= CF_READY;
1687		1851
1688	sv_hook = coro_nready ? 0 : coro_readyhook;
1689	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1690
1691	coro_enq (aTHX_ coro);	1852	coro_enq (aTHX_ coro);
1692	++coro_nready;
1693		1853
1694	if (sv_hook)	1854	if (!coro_nready++)
1695	{	1855	if (coroapi.readyhook)
1696	dSP;	1856	coroapi.readyhook ();
1697
1698	ENTER;
1699	SAVETMPS;
1700
1701	PUSHMARK (SP);
1702	PUTBACK;
1703	call_sv (sv_hook, G_VOID | G_DISCARD);
1704
1705	FREETMPS;
1706	LEAVE;
1707	}
1708
1709	if (xs_hook)
1710	xs_hook ();
1711		1857
1712	return 1;	1858	return 1;
1713	}	1859	}
1714		1860
1715	static int	1861	static int
…		…
1743	struct coro *next = coro_deq (aTHX);	1889	struct coro *next = coro_deq (aTHX);
1744		1890
1745	if (expect_true (next))	1891	if (expect_true (next))
1746	{	1892	{
1747	/* cannot transfer to destroyed coros, skip and look for next */	1893	/* cannot transfer to destroyed coros, skip and look for next */
1748	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))	1894	if (expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1749	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */	1895	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1750	else	1896	else
1751	{	1897	{
1752	next->flags &= ~CF_READY;	1898	next->flags &= ~CF_READY;
1753	--coro_nready;	1899	--coro_nready;
…		…
1760	{	1906	{
1761	/* nothing to schedule: call the idle handler */	1907	/* nothing to schedule: call the idle handler */
1762	if (SvROK (sv_idle)	1908	if (SvROK (sv_idle)
1763	&& SvOBJECT (SvRV (sv_idle)))	1909	&& SvOBJECT (SvRV (sv_idle)))
1764	{	1910	{
		1911	if (SvRV (sv_idle) == SvRV (coro_current))
		1912	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1913
1765	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1914	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1766	api_ready (aTHX_ SvRV (sv_idle));	1915	api_ready (aTHX_ SvRV (sv_idle));
1767	--coro_nready;	1916	--coro_nready;
1768	}	1917	}
1769	else	1918	else
1770	{	1919	{
		1920	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1771	dSP;	1921	dSP;
1772		1922
1773	ENTER;	1923	ENTER;
1774	SAVETMPS;	1924	SAVETMPS;
1775		1925
…		…
1882	coro->slot->runops = RUNOPS_DEFAULT;	2032	coro->slot->runops = RUNOPS_DEFAULT;
1883	}	2033	}
1884	}	2034	}
1885		2035
1886	static void	2036	static void
		2037	coro_push_av (pTHX_ AV *av, I32 gimme_v)
		2038	{
		2039	if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
		2040	{
		2041	dSP;
		2042
		2043	if (gimme_v == G_SCALAR)
		2044	XPUSHs (AvARRAY (av)[AvFILLp (av)]);
		2045	else
		2046	{
		2047	int i;
		2048	EXTEND (SP, AvFILLp (av) + 1);
		2049
		2050	for (i = 0; i <= AvFILLp (av); ++i)
		2051	PUSHs (AvARRAY (av)[i]);
		2052	}
		2053
		2054	PUTBACK;
		2055	}
		2056	}
		2057
		2058	static void
		2059	coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
		2060	{
		2061	if (!coro->on_destroy)
		2062	coro->on_destroy = newAV ();
		2063
		2064	av_push (coro->on_destroy, cb);
		2065	}
		2066
		2067	static void
		2068	slf_destroy_join (pTHX_ struct CoroSLF *frame)
		2069	{
		2070	SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
		2071	}
		2072
		2073	static int
		2074	slf_check_join (pTHX_ struct CoroSLF *frame)
		2075	{
		2076	struct coro *coro = (struct coro *)frame->data;
		2077
		2078	if (!coro->status)
		2079	return 1;
		2080
		2081	frame->destroy = 0;
		2082
		2083	coro_push_av (aTHX_ coro->status, GIMME_V);
		2084
		2085	SvREFCNT_dec ((SV *)coro->hv);
		2086
		2087	return 0;
		2088	}
		2089
		2090	static void
		2091	slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2092	{
		2093	struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
		2094
		2095	if (items > 1)
		2096	croak ("join called with too many arguments");
		2097
		2098	if (coro->status)
		2099	frame->prepare = prepare_nop;
		2100	else
		2101	{
		2102	coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
		2103	frame->prepare = prepare_schedule;
		2104	}
		2105
		2106	frame->check = slf_check_join;
		2107	frame->destroy = slf_destroy_join;
		2108	frame->data = (void *)coro;
		2109	SvREFCNT_inc (coro->hv);
		2110	}
		2111
		2112	static void
1887	coro_call_on_destroy (pTHX_ struct coro *coro)	2113	coro_call_on_destroy (pTHX_ struct coro *coro)
1888	{	2114	{
1889	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);	2115	AV *od = coro->on_destroy;
1890	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1891		2116
1892	if (on_destroyp)	2117	if (!od)
1893	{	2118	return;
1894	AV *on_destroy = (AV *)SvRV (*on_destroyp);
1895		2119
1896	while (AvFILLp (on_destroy) >= 0)	2120	while (AvFILLp (od) >= 0)
		2121	{
		2122	SV *cb = sv_2mortal (av_pop (od));
		2123
		2124	/* coro hv's (and only hv's at the moment) are supported as well */
		2125	if (SvSTATEhv_p (aTHX_ cb))
		2126	api_ready (aTHX_ cb);
		2127	else
1897	{	2128	{
1898	dSP; /* don't disturb outer sp */	2129	dSP; /* don't disturb outer sp */
1899	SV *cb = av_pop (on_destroy);
1900
1901	PUSHMARK (SP);	2130	PUSHMARK (SP);
1902		2131
1903	if (statusp)	2132	if (coro->status)
1904	{	2133	{
1905	int i;	2134	PUTBACK;
1906	AV *status = (AV *)SvRV (*statusp);	2135	coro_push_av (aTHX_ coro->status, G_ARRAY);
1907	EXTEND (SP, AvFILLp (status) + 1);	2136	SPAGAIN;
1908
1909	for (i = 0; i <= AvFILLp (status); ++i)
1910	PUSHs (AvARRAY (status)[i]);
1911	}	2137	}
1912		2138
1913	PUTBACK;	2139	PUTBACK;
1914	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);	2140	call_sv (cb, G_VOID | G_DISCARD);
1915	}	2141	}
1916	}	2142	}
1917	}	2143	}
1918		2144
1919	static void	2145	static void
1920	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2146	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1921	{	2147	{
		2148	AV *av;
		2149
		2150	if (coro->status)
		2151	{
		2152	av = coro->status;
		2153	av_clear (av);
		2154	}
		2155	else
		2156	av = coro->status = newAV ();
		2157
		2158	/* items are actually not so common, so optimise for this case */
		2159	if (items)
		2160	{
1922	int i;	2161	int i;
1923	HV *hv = (HV *)SvRV (coro_current);
1924	AV *av = newAV ();
1925		2162
1926	av_extend (av, items - 1);	2163	av_extend (av, items - 1);
		2164
1927	for (i = 0; i < items; ++i)	2165	for (i = 0; i < items; ++i)
1928	av_push (av, SvREFCNT_inc_NN (arg [i]));	2166	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2167	}
		2168	}
1929		2169
1930	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2170	static void
1931		2171	slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
		2172	{
1932	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2173	av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1933	api_ready (aTHX_ sv_manager);	2174	api_ready (aTHX_ sv_manager);
1934		2175
1935	frame->prepare = prepare_schedule;	2176	frame->prepare = prepare_schedule;
1936	frame->check = slf_check_repeat;	2177	frame->check = slf_check_repeat;
1937		2178
1938	/* as a minor optimisation, we could unwind all stacks here */	2179	/* as a minor optimisation, we could unwind all stacks here */
1939	/* but that puts extra pressure on pp_slf, and is not worth much */	2180	/* but that puts extra pressure on pp_slf, and is not worth much */
1940	/*coro_unwind_stacks (aTHX);*/	2181	/*coro_unwind_stacks (aTHX);*/
		2182	}
		2183
		2184	static void
		2185	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2186	{
		2187	HV *coro_hv = (HV *)SvRV (coro_current);
		2188
		2189	coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
		2190	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2191	}
		2192
		2193	static void
		2194	slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2195	{
		2196	HV *coro_hv;
		2197	struct coro *coro;
		2198
		2199	if (items <= 0)
		2200	croak ("Coro::cancel called without coro object,");
		2201
		2202	coro = SvSTATE (arg [0]);
		2203	coro_hv = coro->hv;
		2204
		2205	coro_set_status (aTHX_ coro, arg + 1, items - 1);
		2206
		2207	if (expect_false (coro->flags & CF_NOCANCEL))
		2208	{
		2209	/* coro currently busy cancelling something, so just notify it */
		2210	coro->slf_frame.data = (void *)coro;
		2211
		2212	frame->prepare = prepare_nop;
		2213	frame->check = slf_check_nop;
		2214	}
		2215	else if (coro_hv == (HV *)SvRV (coro_current))
		2216	{
		2217	/* cancelling the current coro is allowed, and equals terminate */
		2218	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2219	}
		2220	else
		2221	{
		2222	struct coro *self = SvSTATE_current;
		2223
		2224	/* otherwise we cancel directly, purely for speed reasons
		2225	* unfortunately, this requires some magic trickery, as
		2226	* somebody else could cancel us, so we have to fight the cancellation.
		2227	* this is ugly, and hopefully fully worth the extra speed.
		2228	* besides, I can't get the slow-but-safe version working...
		2229	*/
		2230	slf_frame.data = 0;
		2231	self->flags |= CF_NOCANCEL;
		2232	coro_state_destroy (aTHX_ coro);
		2233	self->flags &= ~CF_NOCANCEL;
		2234
		2235	if (slf_frame.data)
		2236	{
		2237	/* while we were busy we have been cancelled, so terminate */
		2238	slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
		2239	}
		2240	else
		2241	{
		2242	frame->prepare = prepare_nop;
		2243	frame->check = slf_check_nop;
		2244	}
		2245	}
		2246	}
		2247
		2248	static int
		2249	slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
		2250	{
		2251	frame->prepare = 0;
		2252	coro_unwind_stacks (aTHX);
		2253
		2254	slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
		2255
		2256	return 1;
		2257	}
		2258
		2259	static int
		2260	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
		2261	{
		2262	if (coro->cctx)
		2263	croak ("coro inside C callback, unable to cancel at this time, caught");
		2264
		2265	if (coro->flags & CF_NEW)
		2266	{
		2267	coro_set_status (aTHX_ coro, arg, items);
		2268	coro_state_destroy (aTHX_ coro);
		2269	}
		2270	else
		2271	{
		2272	if (!coro->slf_frame.prepare)
		2273	croak ("coro outside an SLF function, unable to cancel at this time, caught");
		2274
		2275	slf_destroy (aTHX_ coro);
		2276
		2277	coro_set_status (aTHX_ coro, arg, items);
		2278	coro->slf_frame.prepare = prepare_nop;
		2279	coro->slf_frame.check = slf_check_safe_cancel;
		2280
		2281	api_ready (aTHX_ (SV *)coro->hv);
		2282	}
		2283
		2284	return 1;
1941	}	2285	}
1942		2286
1943	/*****************************************************************************/	2287	/*****************************************************************************/
1944	/* async pool handler */	2288	/* async pool handler */
1945		2289
…		…
1985	coro->saved_deffh = 0;	2329	coro->saved_deffh = 0;
1986		2330
1987	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)	2331	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1988	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2332	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1989	{	2333	{
1990	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);	2334	slf_init_terminate_cancel_common (aTHX_ frame, hv);
1991	coro->invoke_av = newAV ();	2335	return;
1992
1993	frame->prepare = prepare_nop;
1994	}	2336	}
1995	else	2337	else
1996	{	2338	{
1997	av_clear (GvAV (PL_defgv));	2339	av_clear (GvAV (PL_defgv));
1998	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2340	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
…		…
2023		2365
2024	static void	2366	static void
2025	coro_rouse_callback (pTHX_ CV *cv)	2367	coro_rouse_callback (pTHX_ CV *cv)
2026	{	2368	{
2027	dXSARGS;	2369	dXSARGS;
2028	SV *data = (SV *)GENSUB_ARG;	2370	SV *data = (SV *)S_GENSUB_ARG;
2029		2371
2030	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2372	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2031	{	2373	{
2032	/* first call, set args */	2374	/* first call, set args */
2033	SV *coro = SvRV (data);	2375	SV *coro = SvRV (data);
…		…
2099	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2441	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2100	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2442	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2101	croak ("Coro::rouse_wait called with illegal callback argument,");	2443	croak ("Coro::rouse_wait called with illegal callback argument,");
2102		2444
2103	{	2445	{
2104	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2446	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2105	SV *data = (SV *)GENSUB_ARG;	2447	SV *data = (SV *)S_GENSUB_ARG;
2106		2448
2107	frame->data = (void *)data;	2449	frame->data = (void *)data;
2108	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2450	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2109	frame->check = slf_check_rouse_wait;	2451	frame->check = slf_check_rouse_wait;
2110	}	2452	}
…		…
2114	coro_new_rouse_cb (pTHX)	2456	coro_new_rouse_cb (pTHX)
2115	{	2457	{
2116	HV *hv = (HV *)SvRV (coro_current);	2458	HV *hv = (HV *)SvRV (coro_current);
2117	struct coro *coro = SvSTATE_hv (hv);	2459	struct coro *coro = SvSTATE_hv (hv);
2118	SV *data = newRV_inc ((SV *)hv);	2460	SV *data = newRV_inc ((SV *)hv);
2119	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2461	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2120		2462
2121	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2463	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2122	SvREFCNT_dec (data); /* magicext increases the refcount */	2464	SvREFCNT_dec (data); /* magicext increases the refcount */
2123		2465
2124	SvREFCNT_dec (coro->rouse_cb);	2466	SvREFCNT_dec (coro->rouse_cb);
…		…
2221	static void	2563	static void
2222	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2564	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2223	{	2565	{
2224	frame->prepare = prepare_cede_notself;	2566	frame->prepare = prepare_cede_notself;
2225	frame->check = slf_check_nop;	2567	frame->check = slf_check_nop;
		2568	}
		2569
		2570	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
		2571	static void
		2572	slf_destroy (pTHX_ struct coro *coro)
		2573	{
		2574	/* this callback is reserved for slf functions needing to do cleanup */
		2575	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
		2576	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
		2577
		2578	/*
		2579	* The on_destroy above most likely is from an SLF call.
		2580	* Since by definition the SLF call will not finish when we destroy
		2581	* the coro, we will have to force-finish it here, otherwise
		2582	* cleanup functions cannot call SLF functions.
		2583	*/
		2584	coro->slf_frame.prepare = 0;
2226	}	2585	}
2227		2586
2228	/*	2587	/*
2229	* these not obviously related functions are all rolled into one	2588	* these not obviously related functions are all rolled into one
2230	* function to increase chances that they all will call transfer with the same	2589	* function to increase chances that they all will call transfer with the same
…		…
2299	croak (0);	2658	croak (0);
2300	}	2659	}
2301		2660
2302	/* return value handling - mostly like entersub */	2661	/* return value handling - mostly like entersub */
2303	/* make sure we put something on the stack in scalar context */	2662	/* make sure we put something on the stack in scalar context */
2304	if (GIMME_V == G_SCALAR)	2663	if (GIMME_V == G_SCALAR
		2664	&& expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2305	{	2665	{
2306	dSP;	2666	dSP;
2307	SV **bot = PL_stack_base + checkmark;	2667	SV **bot = PL_stack_base + checkmark;
2308		2668
2309	if (sp == bot) /* too few, push undef */	2669	if (sp == bot) /* too few, push undef */
2310	bot [1] = &PL_sv_undef;	2670	bot [1] = &PL_sv_undef;
2311	else if (sp != bot + 1) /* too many, take last one */	2671	else /* too many, take last one */
2312	bot [1] = *sp;	2672	bot [1] = *sp;
2313		2673
2314	SP = bot + 1;	2674	SP = bot + 1;
2315		2675
2316	PUTBACK;	2676	PUTBACK;
…		…
2349	if (PL_op->op_flags & OPf_STACKED)	2709	if (PL_op->op_flags & OPf_STACKED)
2350	{	2710	{
2351	if (items > slf_arga)	2711	if (items > slf_arga)
2352	{	2712	{
2353	slf_arga = items;	2713	slf_arga = items;
2354	free (slf_argv);	2714	Safefree (slf_argv);
2355	slf_argv = malloc (slf_arga * sizeof (SV *));	2715	New (0, slf_argv, slf_arga, SV *);
2356	}	2716	}
2357		2717
2358	slf_argc = items;	2718	slf_argc = items;
2359		2719
2360	for (i = 0; i < items; ++i)	2720	for (i = 0; i < items; ++i)
…		…
2556	SvREFCNT_dec (cb);	2916	SvREFCNT_dec (cb);
2557	}	2917	}
2558	}	2918	}
2559		2919
2560	static void	2920	static void
2561	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2921	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2562	{	2922	{
2563	/* call $sem->adjust (0) to possibly wake up some other waiters */	2923	/* call $sem->adjust (0) to possibly wake up some other waiters */
2564	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2924	coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2565	}	2925	}
2566		2926
2567	static int	2927	static int
2568	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)	2928	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2569	{	2929	{
2570	AV *av = (AV *)frame->data;	2930	AV *av = (AV *)frame->data;
2571	SV *count_sv = AvARRAY (av)[0];	2931	SV *count_sv = AvARRAY (av)[0];
		2932	SV *coro_hv = SvRV (coro_current);
2572		2933
2573	/* if we are about to throw, don't actually acquire the lock, just throw */	2934	/* if we are about to throw, don't actually acquire the lock, just throw */
2574	if (CORO_THROW)	2935	if (CORO_THROW)
2575	return 0;	2936	return 0;
2576	else if (SvIVX (count_sv) > 0)	2937	else if (SvIVX (count_sv) > 0)
2577	{	2938	{
2578	SvSTATE_current->on_destroy = 0;	2939	frame->destroy = 0;
2579		2940
2580	if (acquire)	2941	if (acquire)
2581	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2942	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2582	else	2943	else
2583	coro_semaphore_adjust (aTHX_ av, 0);	2944	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2588	{	2949	{
2589	int i;	2950	int i;
2590	/* if we were woken up but can't down, we look through the whole */	2951	/* if we were woken up but can't down, we look through the whole */
2591	/* waiters list and only add us if we aren't in there already */	2952	/* waiters list and only add us if we aren't in there already */
2592	/* this avoids some degenerate memory usage cases */	2953	/* this avoids some degenerate memory usage cases */
2593		2954	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2594	for (i = 1; i <= AvFILLp (av); ++i)
2595	if (AvARRAY (av)[i] == SvRV (coro_current))	2955	if (AvARRAY (av)[i] == coro_hv)
2596	return 1;	2956	return 1;
2597		2957
2598	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2958	av_push (av, SvREFCNT_inc (coro_hv));
2599	return 1;	2959	return 1;
2600	}	2960	}
2601	}	2961	}
2602		2962
2603	static int	2963	static int
…		…
2626	{	2986	{
2627	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2987	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2628		2988
2629	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2989	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2630	frame->prepare = prepare_schedule;	2990	frame->prepare = prepare_schedule;
2631
2632	/* to avoid race conditions when a woken-up coro gets terminated */	2991	/* to avoid race conditions when a woken-up coro gets terminated */
2633	/* we arrange for a temporary on_destroy that calls adjust (0) */	2992	/* we arrange for a temporary on_destroy that calls adjust (0) */
2634	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2993	frame->destroy = coro_semaphore_destroy;
2635	}	2994	}
2636	}	2995	}
2637		2996
2638	static void	2997	static void
2639	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2998	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
…		…
2647	{	3006	{
2648	if (items >= 2)	3007	if (items >= 2)
2649	{	3008	{
2650	/* callback form */	3009	/* callback form */
2651	AV *av = (AV *)SvRV (arg [0]);	3010	AV *av = (AV *)SvRV (arg [0]);
2652	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	3011	SV *cb_cv = s_get_cv_croak (arg [1]);
2653		3012
2654	av_push (av, SvREFCNT_inc_NN (cb_cv));	3013	av_push (av, SvREFCNT_inc_NN (cb_cv));
2655		3014
2656	if (SvIVX (AvARRAY (av)[0]) > 0)	3015	if (SvIVX (AvARRAY (av)[0]) > 0)
2657	coro_semaphore_adjust (aTHX_ av, 0);	3016	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2717	{	3076	{
2718	AV *av = (AV *)SvRV (arg [0]);	3077	AV *av = (AV *)SvRV (arg [0]);
2719		3078
2720	if (items >= 2)	3079	if (items >= 2)
2721	{	3080	{
2722	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	3081	SV *cb_cv = s_get_cv_croak (arg [1]);
2723	av_push (av, SvREFCNT_inc_NN (cb_cv));	3082	av_push (av, SvREFCNT_inc_NN (cb_cv));
2724		3083
2725	if (SvIVX (AvARRAY (av)[0]))	3084	if (SvIVX (AvARRAY (av)[0]))
2726	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */	3085	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2727		3086
2728	frame->prepare = prepare_nop;	3087	frame->prepare = prepare_nop;
2729	frame->check = slf_check_nop;	3088	frame->check = slf_check_nop;
2730	}	3089	}
2731	else if (SvIVX (AvARRAY (av)[0]))	3090	else if (SvIVX (AvARRAY (av)[0]))
…		…
2762		3121
2763	static void	3122	static void
2764	coro_aio_callback (pTHX_ CV *cv)	3123	coro_aio_callback (pTHX_ CV *cv)
2765	{	3124	{
2766	dXSARGS;	3125	dXSARGS;
2767	AV *state = (AV *)GENSUB_ARG;	3126	AV *state = (AV *)S_GENSUB_ARG;
2768	SV *coro = av_pop (state);	3127	SV *coro = av_pop (state);
2769	SV *data_sv = newSV (sizeof (struct io_state));	3128	SV *data_sv = newSV (sizeof (struct io_state));
2770		3129
2771	av_extend (state, items - 1);	3130	av_extend (state, items - 1);
2772		3131
…		…
2886		3245
2887	for (i = 0; i < items; ++i)	3246	for (i = 0; i < items; ++i)
2888	PUSHs (arg [i]);	3247	PUSHs (arg [i]);
2889		3248
2890	/* now push the callback closure */	3249	/* now push the callback closure */
2891	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	3250	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2892		3251
2893	/* now call the AIO function - we assume our request is uncancelable */	3252	/* now call the AIO function - we assume our request is uncancelable */
2894	PUTBACK;	3253	PUTBACK;
2895	call_sv ((SV *)req, G_VOID | G_DISCARD);	3254	call_sv ((SV *)req, G_VOID | G_DISCARD);
2896	}	3255	}
2897		3256
2898	/* now that the requets is going, we loop toll we have a result */	3257	/* now that the request is going, we loop till we have a result */
2899	frame->data = (void *)state;	3258	frame->data = (void *)state;
2900	frame->prepare = prepare_schedule;	3259	frame->prepare = prepare_schedule;
2901	frame->check = slf_check_aio_req;	3260	frame->check = slf_check_aio_req;
2902	}	3261	}
2903		3262
…		…
2914	/*****************************************************************************/	3273	/*****************************************************************************/
2915		3274
2916	#if CORO_CLONE	3275	#if CORO_CLONE
2917	# include "clone.c"	3276	# include "clone.c"
2918	#endif	3277	#endif
		3278
		3279	/*****************************************************************************/
		3280
		3281	static SV *
		3282	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3283	{
		3284	SV *coro_sv;
		3285	struct coro *coro;
		3286	MAGIC *mg;
		3287	HV *hv;
		3288	SV *cb;
		3289	int i;
		3290
		3291	if (argc > 0)
		3292	{
		3293	cb = s_get_cv_croak (argv [0]);
		3294
		3295	if (!is_coro)
		3296	{
		3297	if (CvISXSUB (cb))
		3298	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3299
		3300	if (!CvROOT (cb))
		3301	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3302	}
		3303	}
		3304
		3305	Newz (0, coro, 1, struct coro);
		3306	coro->args = newAV ();
		3307	coro->flags = CF_NEW;
		3308
		3309	if (coro_first) coro_first->prev = coro;
		3310	coro->next = coro_first;
		3311	coro_first = coro;
		3312
		3313	coro->hv = hv = newHV ();
		3314	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3315	mg->mg_flags |= MGf_DUP;
		3316	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3317
		3318	if (argc > 0)
		3319	{
		3320	av_extend (coro->args, argc + is_coro - 1);
		3321
		3322	if (is_coro)
		3323	{
		3324	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3325	cb = (SV *)cv_coro_run;
		3326	}
		3327
		3328	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3329
		3330	for (i = 1; i < argc; i++)
		3331	av_push (coro->args, newSVsv (argv [i]));
		3332	}
		3333
		3334	return coro_sv;
		3335	}
2919		3336
2920	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3337	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2921		3338
2922	PROTOTYPES: DISABLE	3339	PROTOTYPES: DISABLE
2923		3340
…		…
2976	coroapi.prepare_nop = prepare_nop;	3393	coroapi.prepare_nop = prepare_nop;
2977	coroapi.prepare_schedule = prepare_schedule;	3394	coroapi.prepare_schedule = prepare_schedule;
2978	coroapi.prepare_cede = prepare_cede;	3395	coroapi.prepare_cede = prepare_cede;
2979	coroapi.prepare_cede_notself = prepare_cede_notself;	3396	coroapi.prepare_cede_notself = prepare_cede_notself;
2980		3397
2981	{	3398	time_init (aTHX);
2982	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2983
2984	if (!svp) croak ("Time::HiRes is required");
2985	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2986
2987	nvtime = INT2PTR (double (*)(), SvIV (*svp));
2988	}
2989		3399
2990	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3400	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2991	}	3401	}
2992		3402
2993	SV *	3403	SV *
2994	new (char *klass, ...)	3404	new (SV *klass, ...)
2995	ALIAS:	3405	ALIAS:
2996	Coro::new = 1	3406	Coro::new = 1
2997	CODE:	3407	CODE:
2998	{	3408	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2999	struct coro *coro;	3409	OUTPUT:
3000	MAGIC *mg;
3001	HV *hv;
3002	CV *cb;
3003	int i;
3004
3005	if (items > 1)
3006	{
3007	cb = coro_sv_2cv (aTHX_ ST (1));
3008
3009	if (!ix)
3010	{
3011	if (CvISXSUB (cb))
3012	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3013
3014	if (!CvROOT (cb))
3015	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3016	}
3017	}
3018
3019	Newz (0, coro, 1, struct coro);
3020	coro->args = newAV ();
3021	coro->flags = CF_NEW;
3022
3023	if (coro_first) coro_first->prev = coro;
3024	coro->next = coro_first;
3025	coro_first = coro;
3026
3027	coro->hv = hv = newHV ();
3028	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3029	mg->mg_flags |= MGf_DUP;
3030	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3031
3032	if (items > 1)
3033	{
3034	av_extend (coro->args, items - 1 + ix - 1);
3035
3036	if (ix)
3037	{
3038	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3039	cb = cv_coro_run;
3040	}
3041
3042	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3043
3044	for (i = 2; i < items; i++)
3045	av_push (coro->args, newSVsv (ST (i)));
3046	}
3047	}
3048	OUTPUT:
3049	RETVAL	3410	RETVAL
3050		3411
3051	void	3412	void
3052	transfer (...)	3413	transfer (...)
3053	PROTOTYPE: $$	3414	PROTOTYPE: $$
3054	CODE:	3415	CODE:
3055	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3416	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3056
3057	bool
3058	_destroy (SV *coro_sv)
3059	CODE:
3060	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3061	OUTPUT:
3062	RETVAL
3063		3417
3064	void	3418	void
3065	_exit (int code)	3419	_exit (int code)
3066	PROTOTYPE: $	3420	PROTOTYPE: $
3067	CODE:	3421	CODE:
…		…
3143	CODE:	3497	CODE:
3144	{	3498	{
3145	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3499	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3146	{	3500	{
3147	struct coro *current = SvSTATE_current;	3501	struct coro *current = SvSTATE_current;
		3502	struct CoroSLF slf_save;
3148		3503
3149	if (current != coro)	3504	if (current != coro)
3150	{	3505	{
3151	PUTBACK;	3506	PUTBACK;
3152	save_perl (aTHX_ current);	3507	save_perl (aTHX_ current);
3153	load_perl (aTHX_ coro);	3508	load_perl (aTHX_ coro);
		3509	/* the coro is most likely in an active SLF call.
		3510	* while not strictly required (the code we execute is
		3511	* not allowed to call any SLF functions), it's cleaner
		3512	* to reinitialise the slf_frame and restore it later.
		3513	* This might one day allow us to actually do SLF calls
		3514	* from code executed here.
		3515	*/
		3516	slf_save = slf_frame;
		3517	slf_frame.prepare = 0;
3154	SPAGAIN;	3518	SPAGAIN;
3155	}	3519	}
3156		3520
3157	PUSHSTACK;	3521	PUSHSTACK;
3158		3522
…		…
3168	SPAGAIN;	3532	SPAGAIN;
3169		3533
3170	if (current != coro)	3534	if (current != coro)
3171	{	3535	{
3172	PUTBACK;	3536	PUTBACK;
		3537	slf_frame = slf_save;
3173	save_perl (aTHX_ coro);	3538	save_perl (aTHX_ coro);
3174	load_perl (aTHX_ current);	3539	load_perl (aTHX_ current);
3175	SPAGAIN;	3540	SPAGAIN;
3176	}	3541	}
3177	}	3542	}
…		…
3182	PROTOTYPE: $	3547	PROTOTYPE: $
3183	ALIAS:	3548	ALIAS:
3184	is_ready = CF_READY	3549	is_ready = CF_READY
3185	is_running = CF_RUNNING	3550	is_running = CF_RUNNING
3186	is_new = CF_NEW	3551	is_new = CF_NEW
3187	is_destroyed = CF_DESTROYED	3552	is_destroyed = CF_ZOMBIE
		3553	is_zombie = CF_ZOMBIE
3188	is_suspended = CF_SUSPENDED	3554	is_suspended = CF_SUSPENDED
3189	CODE:	3555	CODE:
3190	RETVAL = boolSV (coro->flags & ix);	3556	RETVAL = boolSV (coro->flags & ix);
3191	OUTPUT:	3557	OUTPUT:
3192	RETVAL	3558	RETVAL
3193		3559
3194	void	3560	void
3195	throw (Coro::State self, SV *throw = &PL_sv_undef)	3561	throw (Coro::State self, SV *exception = &PL_sv_undef)
3196	PROTOTYPE: $;$	3562	PROTOTYPE: $;$
3197	CODE:	3563	CODE:
3198	{	3564	{
3199	struct coro *current = SvSTATE_current;	3565	struct coro *current = SvSTATE_current;
3200	SV **throwp = self == current ? &CORO_THROW : &self->except;	3566	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3201	SvREFCNT_dec (*throwp);	3567	SvREFCNT_dec (*exceptionp);
3202	SvGETMAGIC (throw);	3568	SvGETMAGIC (exception);
3203	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3569	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3204	}	3570	}
3205		3571
3206	void	3572	void
3207	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3573	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3208	PROTOTYPE: $;$	3574	PROTOTYPE: $;$
…		…
3263		3629
3264	void	3630	void
3265	cancel (Coro::State self)	3631	cancel (Coro::State self)
3266	CODE:	3632	CODE:
3267	coro_state_destroy (aTHX_ self);	3633	coro_state_destroy (aTHX_ self);
3268	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */	3634
		3635	SV *
		3636	enable_times (int enabled = enable_times)
		3637	CODE:
		3638	{
		3639	RETVAL = boolSV (enable_times);
		3640
		3641	if (enabled != enable_times)
		3642	{
		3643	enable_times = enabled;
		3644
		3645	coro_times_update ();
		3646	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3647	}
		3648	}
		3649	OUTPUT:
		3650	RETVAL
		3651
		3652	void
		3653	times (Coro::State self)
		3654	PPCODE:
		3655	{
		3656	struct coro *current = SvSTATE (coro_current);
		3657
		3658	if (expect_false (current == self))
		3659	{
		3660	coro_times_update ();
		3661	coro_times_add (SvSTATE (coro_current));
		3662	}
		3663
		3664	EXTEND (SP, 2);
		3665	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3666	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3667
		3668	if (expect_false (current == self))
		3669	coro_times_sub (SvSTATE (coro_current));
		3670	}
		3671
		3672	void
		3673	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3674	CODE:
		3675	{
		3676	struct coro *current = SvSTATE_current;
		3677
		3678	if (current == coro)
		3679	SWAP_SVS (current);
		3680
		3681	if (!coro->swap_sv)
		3682	coro->swap_sv = newAV ();
		3683
		3684	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3685	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3686
		3687	if (current == coro)
		3688	SWAP_SVS (current);
		3689	}
3269		3690
3270		3691
3271	MODULE = Coro::State PACKAGE = Coro	3692	MODULE = Coro::State PACKAGE = Coro
3272		3693
3273	BOOT:	3694	BOOT:
3274	{	3695	{
3275	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3696	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3276	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3697	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3277	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3698	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3278	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3279	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3699	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3280	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3700	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3281	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3701	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3282	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3702	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3283	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3703	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3284		3704
3285	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3705	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3286	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3706	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3287	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3707	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3288	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3708	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3289		3709
3290	coro_stash = gv_stashpv ("Coro", TRUE);	3710	coro_stash = gv_stashpv ("Coro", TRUE);
3291		3711
3292	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	3712	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3293	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	3713	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3294	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	3714	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3312	sv_setiv (sv, (IV)&coroapi);	3732	sv_setiv (sv, (IV)&coroapi);
3313	SvREADONLY_on (sv);	3733	SvREADONLY_on (sv);
3314	}	3734	}
3315	}	3735	}
3316		3736
		3737	SV *
		3738	async (...)
		3739	PROTOTYPE: &@
		3740	CODE:
		3741	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3742	api_ready (aTHX_ RETVAL);
		3743	OUTPUT:
		3744	RETVAL
		3745
		3746	void
		3747	_destroy (Coro::State coro)
		3748	CODE:
		3749	/* used by the manager thread */
		3750	coro_state_destroy (aTHX_ coro);
		3751
		3752	void
		3753	on_destroy (Coro::State coro, SV *cb)
		3754	CODE:
		3755	coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
		3756
		3757	void
		3758	join (...)
		3759	CODE:
		3760	CORO_EXECUTE_SLF_XS (slf_init_join);
		3761
3317	void	3762	void
3318	terminate (...)	3763	terminate (...)
3319	CODE:	3764	CODE:
3320	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3765	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3766
		3767	void
		3768	cancel (...)
		3769	CODE:
		3770	CORO_EXECUTE_SLF_XS (slf_init_cancel);
		3771
		3772	int
		3773	safe_cancel (Coro::State self, ...)
		3774	C_ARGS: aTHX_ self, &ST (1), items - 1
3321		3775
3322	void	3776	void
3323	schedule (...)	3777	schedule (...)
3324	CODE:	3778	CODE:
3325	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3779	CORO_EXECUTE_SLF_XS (slf_init_schedule);
…		…
3355	_set_readyhook (SV *hook)	3809	_set_readyhook (SV *hook)
3356	PROTOTYPE: $	3810	PROTOTYPE: $
3357	CODE:	3811	CODE:
3358	SvREFCNT_dec (coro_readyhook);	3812	SvREFCNT_dec (coro_readyhook);
3359	SvGETMAGIC (hook);	3813	SvGETMAGIC (hook);
		3814	if (SvOK (hook))
		3815	{
3360	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3816	coro_readyhook = newSVsv (hook);
		3817	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3818	}
		3819	else
		3820	{
		3821	coro_readyhook = 0;
		3822	CORO_READYHOOK = 0;
		3823	}
3361		3824
3362	int	3825	int
3363	prio (Coro::State coro, int newprio = 0)	3826	prio (Coro::State coro, int newprio = 0)
3364	PROTOTYPE: $;$	3827	PROTOTYPE: $;$
3365	ALIAS:	3828	ALIAS:
…		…
3429	for (i = 1; i < items; ++i)	3892	for (i = 1; i < items; ++i)
3430	av_push (av, SvREFCNT_inc_NN (ST (i)));	3893	av_push (av, SvREFCNT_inc_NN (ST (i)));
3431		3894
3432	if ((SV *)hv == &PL_sv_undef)	3895	if ((SV *)hv == &PL_sv_undef)
3433	{	3896	{
3434	PUSHMARK (SP);	3897	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3435	EXTEND (SP, 2);
3436	PUSHs (sv_Coro);
3437	PUSHs ((SV *)cv_pool_handler);
3438	PUTBACK;
3439	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3440	SPAGAIN;
3441
3442	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3898	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3899	SvREFCNT_dec (sv);
3443	}	3900	}
3444		3901
3445	{	3902	{
3446	struct coro *coro = SvSTATE_hv (hv);	3903	struct coro *coro = SvSTATE_hv (hv);
3447		3904
…		…
3481	CODE:	3938	CODE:
3482	{	3939	{
3483	struct coro *coro = SvSTATE_current;	3940	struct coro *coro = SvSTATE_current;
3484	AV **avp = ix ? &coro->on_leave : &coro->on_enter;	3941	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3485		3942
3486	block = (SV *)coro_sv_2cv (aTHX_ block);	3943	block = s_get_cv_croak (block);
3487		3944
3488	if (!*avp)	3945	if (!*avp)
3489	*avp = newAV ();	3946	*avp = newAV ();
3490		3947
3491	av_push (*avp, SvREFCNT_inc (block));	3948	av_push (*avp, SvREFCNT_inc (block));
…		…
3691		4148
3692	void	4149	void
3693	_register (char *target, char *proto, SV *req)	4150	_register (char *target, char *proto, SV *req)
3694	CODE:	4151	CODE:
3695	{	4152	{
3696	CV *req_cv = coro_sv_2cv (aTHX_ req);	4153	SV *req_cv = s_get_cv_croak (req);
3697	/* newXSproto doesn't return the CV on 5.8 */	4154	/* newXSproto doesn't return the CV on 5.8 */
3698	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	4155	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3699	sv_setpv ((SV *)slf_cv, proto);	4156	sv_setpv ((SV *)slf_cv, proto);
3700	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	4157	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3701	}	4158	}
3702		4159
		4160	MODULE = Coro::State PACKAGE = Coro::Select
		4161
		4162	void
		4163	patch_pp_sselect ()
		4164	CODE:
		4165	if (!coro_old_pp_sselect)
		4166	{
		4167	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		4168	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		4169	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		4170	}
		4171
		4172	void
		4173	unpatch_pp_sselect ()
		4174	CODE:
		4175	if (coro_old_pp_sselect)
		4176	{
		4177	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		4178	coro_old_pp_sselect = 0;
		4179	}
		4180

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