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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.358 by root, Mon Jun 29 04:30:25 2009 UTC vs.
Revision 1.403 by root, Sun May 22 20:13:33 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
		18	#include <stddef.h>
13	#include <stdio.h>	19	#include <stdio.h>
14	#include <errno.h>	20	#include <errno.h>
15	#include <assert.h>	21	#include <assert.h>
16		22
17	#ifdef WIN32	23	#ifndef SVs_PADSTALE
		24	# define SVs_PADSTALE 0
		25	#endif
		26
		27	#if defined(_WIN32)
		28	# undef HAS_GETTIMEOFDAY
18	# undef setjmp	29	# undef setjmp
19	# undef longjmp	30	# undef longjmp
20	# undef _exit	31	# undef _exit
21	# define setjmp _setjmp /* deep magic */	32	# define setjmp _setjmp /* deep magic */
22	#else	33	#else
…		…
51	#endif	62	#endif
52		63
53	/* the maximum number of idle cctx that will be pooled */	64	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	65	static int cctx_max_idle = 4;
55		66
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	67	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	68	# undef CORO_STACKGUARD
117	#endif	69	#endif
118		70
119	#ifndef CORO_STACKGUARD	71	#ifndef CORO_STACKGUARD
…		…
170	# define CORO_CLOCK_THREAD_CPUTIME_ID 3	122	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
171	# endif	123	# endif
172	#endif	124	#endif
173		125
174	static double (*nvtime)(); /* so why doesn't it take void? */	126	static double (*nvtime)(); /* so why doesn't it take void? */
		127	static void (*u2time)(pTHX_ UV ret[2]);
175		128
176	/* we hijack an hopefully unused CV flag for our purposes */	129	/* we hijack an hopefully unused CV flag for our purposes */
177	#define CVf_SLF 0x4000	130	#define CVf_SLF 0x4000
178	static OP *pp_slf (pTHX);	131	static OP *pp_slf (pTHX);
		132	static void slf_destroy (pTHX_ struct coro *coro);
179		133
180	static U32 cctx_gen;	134	static U32 cctx_gen;
181	static size_t cctx_stacksize = CORO_STACKSIZE;	135	static size_t cctx_stacksize = CORO_STACKSIZE;
182	static struct CoroAPI coroapi;	136	static struct CoroAPI coroapi;
183	static AV *main_mainstack; /* used to differentiate between $main and others */	137	static AV *main_mainstack; /* used to differentiate between $main and others */
…		…
200	static SV *sv_pool_size;	154	static SV *sv_pool_size;
201	static SV *sv_async_pool_idle; /* description string */	155	static SV *sv_async_pool_idle; /* description string */
202	static AV *av_async_pool; /* idle pool */	156	static AV *av_async_pool; /* idle pool */
203	static SV *sv_Coro; /* class string */	157	static SV *sv_Coro; /* class string */
204	static CV *cv_pool_handler;	158	static CV *cv_pool_handler;
205	static CV *cv_coro_state_new;
206		159
207	/* Coro::AnyEvent */	160	/* Coro::AnyEvent */
208	static SV *sv_activity;	161	static SV *sv_activity;
209		162
		163	/* enable processtime/realtime profiling */
		164	static char enable_times;
		165	typedef U32 coro_ts[2];
		166	static coro_ts time_real, time_cpu;
		167	static char times_valid;
		168
210	static struct coro_cctx *cctx_first;	169	static struct coro_cctx *cctx_first;
211	static int cctx_count, cctx_idle;	170	static int cctx_count, cctx_idle;
212		171
213	enum {	172	enum
		173	{
214	CC_MAPPED = 0x01,	174	CC_MAPPED = 0x01,
215	CC_NOREUSE = 0x02, /* throw this away after tracing */	175	CC_NOREUSE = 0x02, /* throw this away after tracing */
216	CC_TRACE = 0x04,	176	CC_TRACE = 0x04,
217	CC_TRACE_SUB = 0x08, /* trace sub calls */	177	CC_TRACE_SUB = 0x08, /* trace sub calls */
218	CC_TRACE_LINE = 0x10, /* trace each statement */	178	CC_TRACE_LINE = 0x10, /* trace each statement */
…		…
239	int valgrind_id;	199	int valgrind_id;
240	#endif	200	#endif
241	unsigned char flags;	201	unsigned char flags;
242	} coro_cctx;	202	} coro_cctx;
243		203
244	coro_cctx *cctx_current; /* the currently running cctx */	204	static coro_cctx *cctx_current; /* the currently running cctx */
245		205
246	/*****************************************************************************/	206	/*****************************************************************************/
247		207
		208	static MGVTBL coro_state_vtbl;
		209
248	enum {	210	enum
		211	{
249	CF_RUNNING = 0x0001, /* coroutine is running */	212	CF_RUNNING = 0x0001, /* coroutine is running */
250	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
251	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
252	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
253	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */	216	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
		217	CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
254	};	218	};
255		219
256	/* the structure where most of the perl state is stored, overlaid on the cxstack */	220	/* the structure where most of the perl state is stored, overlaid on the cxstack */
257	typedef struct	221	typedef struct
258	{	222	{
…		…
264	#define VAR(name,type) type name;	228	#define VAR(name,type) type name;
265	# include "state.h"	229	# include "state.h"
266	#undef VAR	230	#undef VAR
267	} perl_slots;	231	} perl_slots;
268		232
		233	// how many context stack entries do we need for perl_slots
269	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))	234	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
270		235
271	/* this is a structure representing a perl-level coroutine */	236	/* this is a structure representing a perl-level coroutine */
272	struct coro {	237	struct coro
		238	{
273	/* the C coroutine allocated to this perl coroutine, if any */	239	/* the C coroutine allocated to this perl coroutine, if any */
274	coro_cctx *cctx;	240	coro_cctx *cctx;
275		241
276	/* ready queue */	242	/* ready queue */
277	struct coro *next_ready;	243	struct coro *next_ready;
…		…
279	/* state data */	245	/* state data */
280	struct CoroSLF slf_frame; /* saved slf frame */	246	struct CoroSLF slf_frame; /* saved slf frame */
281	AV *mainstack;	247	AV *mainstack;
282	perl_slots *slot; /* basically the saved sp */	248	perl_slots *slot; /* basically the saved sp */
283		249
284	CV *startcv; /* the CV to execute */	250	CV *startcv; /* the CV to execute */
285	AV *args; /* data associated with this coroutine (initial args) */	251	AV *args; /* data associated with this coroutine (initial args) */
286	int refcnt; /* coroutines are refcounted, yes */
287	int flags; /* CF_ flags */	252	int flags; /* CF_ flags */
288	HV *hv; /* the perl hash associated with this coro, if any */	253	HV *hv; /* the perl hash associated with this coro, if any */
289	void (*on_destroy)(pTHX_ struct coro *coro);
290		254
291	/* statistics */	255	/* statistics */
292	int usecount; /* number of transfers to this coro */	256	int usecount; /* number of transfers to this coro */
293		257
294	/* coro process data */	258	/* coro process data */
295	int prio;	259	int prio;
296	SV *except; /* exception to be thrown */	260	SV *except; /* exception to be thrown */
297	SV *rouse_cb;	261	SV *rouse_cb; /* last rouse callback */
		262	AV *on_destroy; /* callbacks or coros to notify on destroy */
		263	AV *status; /* the exit status list */
298		264
299	/* async_pool */	265	/* async_pool */
300	SV *saved_deffh;	266	SV *saved_deffh;
301	SV *invoke_cb;	267	SV *invoke_cb;
302	AV *invoke_av;	268	AV *invoke_av;
303		269
304	/* on_enter/on_leave */	270	/* on_enter/on_leave */
305	AV *on_enter;	271	AV *on_enter;
306	AV *on_leave;	272	AV *on_leave;
307		273
		274	/* swap_sv */
		275	AV *swap_sv;
		276
		277	/* times */
		278	coro_ts t_cpu, t_real;
		279
308	/* linked list */	280	/* linked list */
309	struct coro *next, *prev;	281	struct coro *next, *prev;
310	};	282	};
311		283
312	typedef struct coro *Coro__State;	284	typedef struct coro *Coro__State;
313	typedef struct coro *Coro__State_or_hashref;	285	typedef struct coro *Coro__State_or_hashref;
314		286
315	/* the following variables are effectively part of the perl context */	287	/* the following variables are effectively part of the perl context */
316	/* and get copied between struct coro and these variables */	288	/* and get copied between struct coro and these variables */
317	/* the mainr easonw e don't support windows process emulation */	289	/* the main reason we don't support windows process emulation */
318	static struct CoroSLF slf_frame; /* the current slf frame */	290	static struct CoroSLF slf_frame; /* the current slf frame */
319		291
320	/** Coro ********************************************************************/	292	/** Coro ********************************************************************/
321		293
322	#define CORO_PRIO_MAX 3	294	#define CORO_PRIO_MAX 3
…		…
328		300
329	/* for Coro.pm */	301	/* for Coro.pm */
330	static SV *coro_current;	302	static SV *coro_current;
331	static SV *coro_readyhook;	303	static SV *coro_readyhook;
332	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */	304	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
333	static CV *cv_coro_run, *cv_coro_terminate;	305	static CV *cv_coro_run;
334	static struct coro *coro_first;	306	static struct coro *coro_first;
335	#define coro_nready coroapi.nready	307	#define coro_nready coroapi.nready
		308
		309	/** Coro::Select ************************************************************/
		310
		311	static OP *(*coro_old_pp_sselect) (pTHX);
		312	static SV *coro_select_select;
		313
		314	/* horrible hack, but if it works... */
		315	static OP *
		316	coro_pp_sselect (pTHX)
		317	{
		318	dSP;
		319	PUSHMARK (SP - 4); /* fake argument list */
		320	XPUSHs (coro_select_select);
		321	PUTBACK;
		322
		323	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		324	PL_op->op_flags |= OPf_STACKED;
		325	PL_op->op_private = 0;
		326	return PL_ppaddr [OP_ENTERSUB](aTHX);
		327	}
		328
		329	/** time stuff **************************************************************/
		330
		331	#ifdef HAS_GETTIMEOFDAY
		332
		333	static void
		334	coro_u2time (pTHX_ UV ret[2])
		335	{
		336	struct timeval tv;
		337	gettimeofday (&tv, 0);
		338
		339	ret [0] = tv.tv_sec;
		340	ret [1] = tv.tv_usec;
		341	}
		342
		343	static double
		344	coro_nvtime ()
		345	{
		346	struct timeval tv;
		347	gettimeofday (&tv, 0);
		348
		349	return tv.tv_sec + tv.tv_usec * 1e-6;
		350	}
		351
		352	static void
		353	time_init (pTHX)
		354	{
		355	nvtime = coro_nvtime;
		356	u2time = coro_u2time;
		357	}
		358
		359	#else
		360
		361	static void
		362	time_init (pTHX)
		363	{
		364	SV **svp;
		365
		366	require_pv ("Time/HiRes.pm");
		367
		368	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		369
		370	if (!svp) croak ("Time::HiRes is required, but missing. Caught");
		371	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
		372
		373	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		374
		375	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		376	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
		377	}
		378
		379	#endif
336		380
337	/** lowlevel stuff **********************************************************/	381	/** lowlevel stuff **********************************************************/
338		382
339	static SV *	383	static SV *
340	coro_get_sv (pTHX_ const char *name, int create)	384	coro_get_sv (pTHX_ const char *name, int create)
…		…
364	get_hv (name, create);	408	get_hv (name, create);
365	#endif	409	#endif
366	return get_hv (name, create);	410	return get_hv (name, create);
367	}	411	}
368		412
369	/* may croak */	413	INLINE void
370	INLINE CV *	414	coro_times_update ()
371	coro_sv_2cv (pTHX_ SV *sv)
372	{	415	{
373	HV *st;	416	#ifdef coro_clock_gettime
374	GV *gvp;	417	struct timespec ts;
375	CV *cv = sv_2cv (sv, &st, &gvp, 0);
376		418
377	if (!cv)	419	ts.tv_sec = ts.tv_nsec = 0;
378	croak ("code reference expected");	420	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		421	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
379		422
380	return cv;	423	ts.tv_sec = ts.tv_nsec = 0;
		424	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		425	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		426	#else
		427	dTHX;
		428	UV tv[2];
		429
		430	u2time (aTHX_ tv);
		431	time_real [0] = tv [0];
		432	time_real [1] = tv [1] * 1000;
		433	#endif
		434	}
		435
		436	INLINE void
		437	coro_times_add (struct coro *c)
		438	{
		439	c->t_real [1] += time_real [1];
		440	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		441	c->t_real [0] += time_real [0];
		442
		443	c->t_cpu [1] += time_cpu [1];
		444	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		445	c->t_cpu [0] += time_cpu [0];
		446	}
		447
		448	INLINE void
		449	coro_times_sub (struct coro *c)
		450	{
		451	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		452	c->t_real [1] -= time_real [1];
		453	c->t_real [0] -= time_real [0];
		454
		455	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		456	c->t_cpu [1] -= time_cpu [1];
		457	c->t_cpu [0] -= time_cpu [0];
381	}	458	}
382		459
383	/*****************************************************************************/	460	/*****************************************************************************/
384	/* magic glue */	461	/* magic glue */
385		462
…		…
397	: 0)	474	: 0)
398		475
399	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	476	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
400	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)	477	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
401		478
		479	INLINE MAGIC *
		480	SvSTATEhv_p (pTHX_ SV *coro)
		481	{
		482	MAGIC *mg;
		483
		484	if (expect_true (
		485	SvTYPE (coro) == SVt_PVHV
		486	&& (mg = CORO_MAGIC_state (coro))
		487	&& mg->mg_virtual == &coro_state_vtbl
		488	))
		489	return mg;
		490
		491	return 0;
		492	}
		493
402	INLINE struct coro *	494	INLINE struct coro *
403	SvSTATE_ (pTHX_ SV *coro)	495	SvSTATE_ (pTHX_ SV *coro)
404	{	496	{
405	HV *stash;
406	MAGIC *mg;	497	MAGIC *mg;
407		498
408	if (SvROK (coro))	499	if (SvROK (coro))
409	coro = SvRV (coro);	500	coro = SvRV (coro);
410		501
411	if (expect_false (SvTYPE (coro) != SVt_PVHV))	502	mg = SvSTATEhv_p (aTHX_ coro);
		503	if (!mg)
412	croak ("Coro::State object required");	504	croak ("Coro::State object required");
413		505
414	stash = SvSTASH (coro);
415	if (expect_false (stash != coro_stash && stash != coro_state_stash))
416	{
417	/* very slow, but rare, check */
418	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
419	croak ("Coro::State object required");
420	}
421
422	mg = CORO_MAGIC_state (coro);
423	return (struct coro *)mg->mg_ptr;	506	return (struct coro *)mg->mg_ptr;
424	}	507	}
425		508
426	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	509	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
427		510
…		…
488	AV *padlist;	571	AV *padlist;
489	AV *av = (AV *)mg->mg_obj;	572	AV *av = (AV *)mg->mg_obj;
490		573
491	/* perl manages to free our internal AV and _then_ call us */	574	/* perl manages to free our internal AV and _then_ call us */
492	if (IN_DESTRUCT)	575	if (IN_DESTRUCT)
493	return;	576	return 0;
494		577
495	/* casting is fun. */	578	/* casting is fun. */
496	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	579	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
497	free_padlist (aTHX_ padlist);	580	free_padlist (aTHX_ padlist);
498		581
…		…
547	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	630	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
548	}	631	}
549		632
550	/** load & save, init *******************************************************/	633	/** load & save, init *******************************************************/
551		634
		635	/* swap sv heads, at least logically */
		636	static void
		637	swap_svs (pTHX_ Coro__State c)
		638	{
		639	int i;
		640
		641	for (i = 0; i <= AvFILLp (c->swap_sv); )
		642	{
		643	SV *a = AvARRAY (c->swap_sv)[i++];
		644	SV *b = AvARRAY (c->swap_sv)[i++];
		645
		646	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		647	SV tmp;
		648
		649	/* swap sv_any */
		650	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		651
		652	/* swap sv_flags */
		653	SvFLAGS (&tmp) = SvFLAGS (a);
		654	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		655	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		656
		657	#if PERL_VERSION_ATLEAST (5,10,0)
		658	/* perl 5.10 complicates this _quite_ a bit, but it also is
		659	* much faster, so no quarrels here. alternatively, we could
		660	* sv_upgrade to avoid this.
		661	*/
		662	{
		663	/* swap sv_u */
		664	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		665
		666	/* if SvANY points to the head, we need to adjust the pointers,
		667	* as the pointer for a still points to b, and maybe vice versa.
		668	*/
		669	#define svany_in_head(type) \
		670	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		671
		672	if (svany_in_head (SvTYPE (a)))
		673	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		674
		675	if (svany_in_head (SvTYPE (b)))
		676	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		677	}
		678	#endif
		679	}
		680	}
		681
		682	#define SWAP_SVS(coro) \
		683	if (expect_false ((coro)->swap_sv)) \
		684	swap_svs (aTHX_ (coro))
		685
552	static void	686	static void
553	on_enterleave_call (pTHX_ SV *cb);	687	on_enterleave_call (pTHX_ SV *cb);
554		688
555	static void	689	static void
556	load_perl (pTHX_ Coro__State c)	690	load_perl (pTHX_ Coro__State c)
…		…
587	}	721	}
588		722
589	slf_frame = c->slf_frame;	723	slf_frame = c->slf_frame;
590	CORO_THROW = c->except;	724	CORO_THROW = c->except;
591		725
		726	if (expect_false (enable_times))
		727	{
		728	if (expect_false (!times_valid))
		729	coro_times_update ();
		730
		731	coro_times_sub (c);
		732	}
		733
592	if (expect_false (c->on_enter))	734	if (expect_false (c->on_enter))
593	{	735	{
594	int i;	736	int i;
595		737
596	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	738	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
597	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	739	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
598	}	740	}
		741
		742	SWAP_SVS (c);
599	}	743	}
600		744
601	static void	745	static void
602	save_perl (pTHX_ Coro__State c)	746	save_perl (pTHX_ Coro__State c)
603	{	747	{
		748	SWAP_SVS (c);
		749
604	if (expect_false (c->on_leave))	750	if (expect_false (c->on_leave))
605	{	751	{
606	int i;	752	int i;
607		753
608	for (i = AvFILLp (c->on_leave); i >= 0; --i)	754	for (i = AvFILLp (c->on_leave); i >= 0; --i)
609	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);	755	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		756	}
		757
		758	times_valid = 0;
		759
		760	if (expect_false (enable_times))
		761	{
		762	coro_times_update (); times_valid = 1;
		763	coro_times_add (c);
610	}	764	}
611		765
612	c->except = CORO_THROW;	766	c->except = CORO_THROW;
613	c->slf_frame = slf_frame;	767	c->slf_frame = slf_frame;
614		768
…		…
658		812
659	PUTBACK;	813	PUTBACK;
660	}	814	}
661		815
662	/* allocate some space on the context stack for our purposes */	816	/* allocate some space on the context stack for our purposes */
663	/* we manually unroll here, as usually 2 slots is enough */	817	if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
664	if (SLOT_COUNT >= 1) CXINC;
665	if (SLOT_COUNT >= 2) CXINC;
666	if (SLOT_COUNT >= 3) CXINC;
667	{	818	{
668	int i;	819	unsigned int i;
		820
669	for (i = 3; i < SLOT_COUNT; ++i)	821	for (i = 0; i < SLOT_COUNT; ++i)
670	CXINC;	822	CXINC;
671	}	823
672	cxstack_ix -= SLOT_COUNT; /* undo allocation */	824	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		825	}
673		826
674	c->mainstack = PL_mainstack;	827	c->mainstack = PL_mainstack;
675		828
676	{	829	{
677	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	830	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
…		…
698	# define coro_init_stacks(thx) init_stacks ()	851	# define coro_init_stacks(thx) init_stacks ()
699	#else	852	#else
700	static void	853	static void
701	coro_init_stacks (pTHX)	854	coro_init_stacks (pTHX)
702	{	855	{
703	PL_curstackinfo = new_stackinfo(32, 8);	856	PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
704	PL_curstackinfo->si_type = PERLSI_MAIN;	857	PL_curstackinfo->si_type = PERLSI_MAIN;
705	PL_curstack = PL_curstackinfo->si_stack;	858	PL_curstack = PL_curstackinfo->si_stack;
706	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	859	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
707		860
708	PL_stack_base = AvARRAY(PL_curstack);	861	PL_stack_base = AvARRAY(PL_curstack);
…		…
815	#endif	968	#endif
816		969
817	/*	970	/*
818	* This overrides the default magic get method of %SIG elements.	971	* This overrides the default magic get method of %SIG elements.
819	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	972	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
820	* and instead of trying to save and restore the hash elements, we just provide	973	* and instead of trying to save and restore the hash elements (extremely slow),
821	* readback here.	974	* we just provide our own readback here.
822	*/	975	*/
823	static int	976	static int
824	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	977	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
825	{	978	{
826	const char *s = MgPV_nolen_const (mg);	979	const char *s = MgPV_nolen_const (mg);
…		…
907	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1060	slf_check_repeat (pTHX_ struct CoroSLF *frame)
908	{	1061	{
909	return 1;	1062	return 1;
910	}	1063	}
911		1064
912	static UNOP coro_setup_op;	1065	static UNOP init_perl_op;
913		1066
914	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1067	static void NOINLINE /* noinline to keep it out of the transfer fast path */
915	coro_setup (pTHX_ struct coro *coro)	1068	init_perl (pTHX_ struct coro *coro)
916	{	1069	{
917	/*	1070	/*
918	* emulate part of the perl startup here.	1071	* emulate part of the perl startup here.
919	*/	1072	*/
920	coro_init_stacks (aTHX);	1073	coro_init_stacks (aTHX);
…		…
927	PL_comppad_name_fill = 0;	1080	PL_comppad_name_fill = 0;
928	PL_comppad_name_floor = 0;	1081	PL_comppad_name_floor = 0;
929	PL_curpm = 0;	1082	PL_curpm = 0;
930	PL_curpad = 0;	1083	PL_curpad = 0;
931	PL_localizing = 0;	1084	PL_localizing = 0;
932	PL_dirty = 0;
933	PL_restartop = 0;	1085	PL_restartop = 0;
934	#if PERL_VERSION_ATLEAST (5,10,0)	1086	#if PERL_VERSION_ATLEAST (5,10,0)
935	PL_parser = 0;	1087	PL_parser = 0;
936	#endif	1088	#endif
937	PL_hints = 0;	1089	PL_hints = 0;
938		1090
939	/* recreate the die/warn hooks */	1091	/* recreate the die/warn hooks */
940	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1092	PL_diehook = SvREFCNT_inc (rv_diehook);
941	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1093	PL_warnhook = SvREFCNT_inc (rv_warnhook);
942		1094
943	GvSV (PL_defgv) = newSV (0);	1095	GvSV (PL_defgv) = newSV (0);
944	GvAV (PL_defgv) = coro->args; coro->args = 0;	1096	GvAV (PL_defgv) = coro->args; coro->args = 0;
945	GvSV (PL_errgv) = newSV (0);	1097	GvSV (PL_errgv) = newSV (0);
946	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1098	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
967	/* this newly created coroutine might be run on an existing cctx which most	1119	/* this newly created coroutine might be run on an existing cctx which most
968	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	1120	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
969	*/	1121	*/
970	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1122	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
971	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1123	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
		1124	slf_frame.destroy = 0;
972		1125
973	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1126	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
974	coro_setup_op.op_next = PL_op;	1127	init_perl_op.op_next = PL_op;
975	coro_setup_op.op_type = OP_ENTERSUB;	1128	init_perl_op.op_type = OP_ENTERSUB;
976	coro_setup_op.op_ppaddr = pp_slf;	1129	init_perl_op.op_ppaddr = pp_slf;
977	/* no flags etc. required, as an init function won't be called */	1130	/* no flags etc. required, as an init function won't be called */
978		1131
979	PL_op = (OP *)&coro_setup_op;	1132	PL_op = (OP *)&init_perl_op;
980		1133
981	/* copy throw, in case it was set before coro_setup */	1134	/* copy throw, in case it was set before init_perl */
982	CORO_THROW = coro->except;	1135	CORO_THROW = coro->except;
		1136
		1137	SWAP_SVS (coro);
		1138
		1139	if (expect_false (enable_times))
		1140	{
		1141	coro_times_update ();
		1142	coro_times_sub (coro);
		1143	}
983	}	1144	}
984		1145
985	static void	1146	static void
986	coro_unwind_stacks (pTHX)	1147	coro_unwind_stacks (pTHX)
987	{	1148	{
…		…
1002	dounwind (-1);	1163	dounwind (-1);
1003	}	1164	}
1004	}	1165	}
1005		1166
1006	static void	1167	static void
1007	coro_destruct_perl (pTHX_ struct coro *coro)	1168	destroy_perl (pTHX_ struct coro *coro)
1008	{	1169	{
1009	SV *svf [9];	1170	SV *svf [9];
1010		1171
1011	{	1172	{
		1173	SV *old_current = SvRV (coro_current);
1012	struct coro *current = SvSTATE_current;	1174	struct coro *current = SvSTATE (old_current);
1013		1175
1014	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));	1176	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1015		1177
1016	save_perl (aTHX_ current);	1178	save_perl (aTHX_ current);
		1179
		1180	/* this will cause transfer_check to croak on block*/
		1181	SvRV_set (coro_current, (SV *)coro->hv);
		1182
1017	load_perl (aTHX_ coro);	1183	load_perl (aTHX_ coro);
1018		1184
1019	coro_unwind_stacks (aTHX);	1185	coro_unwind_stacks (aTHX);
		1186
		1187	/* restore swapped sv's */
		1188	SWAP_SVS (coro);
		1189
1020	coro_destruct_stacks (aTHX);	1190	coro_destruct_stacks (aTHX);
1021		1191
1022	// now save some sv's to be free'd later	1192	// now save some sv's to be free'd later
1023	svf [0] = GvSV (PL_defgv);	1193	svf [0] = GvSV (PL_defgv);
1024	svf [1] = (SV *)GvAV (PL_defgv);	1194	svf [1] = (SV *)GvAV (PL_defgv);
…		…
1029	svf [6] = (SV *)GvHV (PL_hintgv);	1199	svf [6] = (SV *)GvHV (PL_hintgv);
1030	svf [7] = PL_diehook;	1200	svf [7] = PL_diehook;
1031	svf [8] = PL_warnhook;	1201	svf [8] = PL_warnhook;
1032	assert (9 == sizeof (svf) / sizeof (*svf));	1202	assert (9 == sizeof (svf) / sizeof (*svf));
1033		1203
		1204	SvRV_set (coro_current, old_current);
		1205
1034	load_perl (aTHX_ current);	1206	load_perl (aTHX_ current);
1035	}	1207	}
1036		1208
1037	{	1209	{
1038	int i;	1210	unsigned int i;
1039		1211
1040	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)	1212	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1041	SvREFCNT_dec (svf [i]);	1213	SvREFCNT_dec (svf [i]);
1042		1214
1043	SvREFCNT_dec (coro->saved_deffh);	1215	SvREFCNT_dec (coro->saved_deffh);
…		…
1050	INLINE void	1222	INLINE void
1051	free_coro_mortal (pTHX)	1223	free_coro_mortal (pTHX)
1052	{	1224	{
1053	if (expect_true (coro_mortal))	1225	if (expect_true (coro_mortal))
1054	{	1226	{
1055	SvREFCNT_dec (coro_mortal);	1227	SvREFCNT_dec ((SV *)coro_mortal);
1056	coro_mortal = 0;	1228	coro_mortal = 0;
1057	}	1229	}
1058	}	1230	}
1059		1231
1060	static int	1232	static int
…		…
1249	/* somebody or something will hit me for both perl_run and PL_restartop */	1421	/* somebody or something will hit me for both perl_run and PL_restartop */
1250	PL_restartop = PL_op;	1422	PL_restartop = PL_op;
1251	perl_run (PL_curinterp);	1423	perl_run (PL_curinterp);
1252	/*	1424	/*
1253	* Unfortunately, there is no way to get at the return values of the	1425	* Unfortunately, there is no way to get at the return values of the
1254	* coro body here, as perl_run destroys these	1426	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1427	* runtime errors here, as this is just a random interpreter, not a thread.
1255	*/	1428	*/
1256		1429
1257	/*	1430	/*
1258	* If perl-run returns we assume exit() was being called or the coro	1431	* If perl-run returns we assume exit() was being called or the coro
1259	* fell off the end, which seems to be the only valid (non-bug)	1432	* fell off the end, which seems to be the only valid (non-bug)
…		…
1346	cctx_destroy (coro_cctx *cctx)	1519	cctx_destroy (coro_cctx *cctx)
1347	{	1520	{
1348	if (!cctx)	1521	if (!cctx)
1349	return;	1522	return;
1350		1523
1351	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?	1524	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1352		1525
1353	--cctx_count;	1526	--cctx_count;
1354	coro_destroy (&cctx->cctx);	1527	coro_destroy (&cctx->cctx);
1355		1528
1356	/* coro_transfer creates new, empty cctx's */	1529	/* coro_transfer creates new, empty cctx's */
…		…
1422	if (expect_true (prev != next))	1595	if (expect_true (prev != next))
1423	{	1596	{
1424	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1597	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1425	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");	1598	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1426		1599
1427	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))	1600	if (expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1428	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");	1601	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1429		1602
1430	#if !PERL_VERSION_ATLEAST (5,10,0)	1603	#if !PERL_VERSION_ATLEAST (5,10,0)
1431	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1604	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1432	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1605	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
…		…
1466	if (expect_false (next->flags & CF_NEW))	1639	if (expect_false (next->flags & CF_NEW))
1467	{	1640	{
1468	/* need to start coroutine */	1641	/* need to start coroutine */
1469	next->flags &= ~CF_NEW;	1642	next->flags &= ~CF_NEW;
1470	/* setup coroutine call */	1643	/* setup coroutine call */
1471	coro_setup (aTHX_ next);	1644	init_perl (aTHX_ next);
1472	}	1645	}
1473	else	1646	else
1474	load_perl (aTHX_ next);	1647	load_perl (aTHX_ next);
1475		1648
1476	/* possibly untie and reuse the cctx */	1649	/* possibly untie and reuse the cctx */
…		…
1515	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))	1688	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1516	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1689	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1517		1690
1518	/** high level stuff ********************************************************/	1691	/** high level stuff ********************************************************/
1519		1692
		1693	/* this function is actually Coro, not Coro::State, but we call it from here */
		1694	/* because it is convenient - but it hasn't been declared yet for that reason */
1520	static int	1695	static void
		1696	coro_call_on_destroy (pTHX_ struct coro *coro);
		1697
		1698	static void
1521	coro_state_destroy (pTHX_ struct coro *coro)	1699	coro_state_destroy (pTHX_ struct coro *coro)
1522	{	1700	{
1523	if (coro->flags & CF_DESTROYED)	1701	if (coro->flags & CF_ZOMBIE)
1524	return 0;	1702	return;
1525		1703
1526	if (coro->on_destroy && !PL_dirty)
1527	coro->on_destroy (aTHX_ coro);	1704	slf_destroy (aTHX_ coro);
1528		1705
1529	coro->flags |= CF_DESTROYED;	1706	coro->flags |= CF_ZOMBIE;
1530		1707
1531	if (coro->flags & CF_READY)	1708	if (coro->flags & CF_READY)
1532	{	1709	{
1533	/* reduce nready, as destroying a ready coro effectively unreadies it */	1710	/* reduce nready, as destroying a ready coro effectively unreadies it */
1534	/* alternative: look through all ready queues and remove the coro */	1711	/* alternative: look through all ready queues and remove the coro */
1535	--coro_nready;	1712	--coro_nready;
1536	}	1713	}
1537	else	1714	else
1538	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1715	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
		1716
		1717	if (coro->next) coro->next->prev = coro->prev;
		1718	if (coro->prev) coro->prev->next = coro->next;
		1719	if (coro == coro_first) coro_first = coro->next;
1539		1720
1540	if (coro->mainstack	1721	if (coro->mainstack
1541	&& coro->mainstack != main_mainstack	1722	&& coro->mainstack != main_mainstack
1542	&& coro->slot	1723	&& coro->slot
1543	&& !PL_dirty)	1724	&& !PL_dirty)
1544	coro_destruct_perl (aTHX_ coro);	1725	destroy_perl (aTHX_ coro);
1545		1726
1546	cctx_destroy (coro->cctx);	1727	cctx_destroy (coro->cctx);
1547	SvREFCNT_dec (coro->startcv);	1728	SvREFCNT_dec (coro->startcv);
1548	SvREFCNT_dec (coro->args);	1729	SvREFCNT_dec (coro->args);
		1730	SvREFCNT_dec (coro->swap_sv);
1549	SvREFCNT_dec (CORO_THROW);	1731	SvREFCNT_dec (CORO_THROW);
1550		1732
1551	if (coro->next) coro->next->prev = coro->prev;	1733	coro_call_on_destroy (aTHX_ coro);
1552	if (coro->prev) coro->prev->next = coro->next;
1553	if (coro == coro_first) coro_first = coro->next;
1554		1734
1555	return 1;	1735	/* more destruction mayhem in coro_state_free */
1556	}	1736	}
1557		1737
1558	static int	1738	static int
1559	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1739	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1560	{	1740	{
1561	struct coro *coro = (struct coro *)mg->mg_ptr;	1741	struct coro *coro = (struct coro *)mg->mg_ptr;
1562	mg->mg_ptr = 0;	1742	mg->mg_ptr = 0;
1563		1743
1564	coro->hv = 0;
1565
1566	if (--coro->refcnt < 0)
1567	{
1568	coro_state_destroy (aTHX_ coro);	1744	coro_state_destroy (aTHX_ coro);
		1745	SvREFCNT_dec (coro->on_destroy);
		1746	SvREFCNT_dec (coro->status);
		1747
1569	Safefree (coro);	1748	Safefree (coro);
1570	}
1571		1749
1572	return 0;	1750	return 0;
1573	}	1751	}
1574		1752
1575	static int	1753	static int
1576	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)	1754	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1577	{	1755	{
1578	struct coro *coro = (struct coro *)mg->mg_ptr;	1756	/* called when perl clones the current process the slow way (windows process emulation) */
1579		1757	/* WE SIMply nuke the pointers in the copy, causing perl to croak */
1580	++coro->refcnt;	1758	mg->mg_ptr = 0;
		1759	mg->mg_virtual = 0;
1581		1760
1582	return 0;	1761	return 0;
1583	}	1762	}
1584		1763
1585	static MGVTBL coro_state_vtbl = {	1764	static MGVTBL coro_state_vtbl = {
…		…
1608		1787
1609	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1788	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1610	TRANSFER (ta, 1);	1789	TRANSFER (ta, 1);
1611	}	1790	}
1612		1791
1613	/*****************************************************************************/
1614	/* gensub: simple closure generation utility */
1615
1616	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1617
1618	/* create a closure from XS, returns a code reference */
1619	/* the arg can be accessed via GENSUB_ARG from the callback */
1620	/* the callback must use dXSARGS/XSRETURN */
1621	static SV *
1622	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1623	{
1624	CV *cv = (CV *)newSV (0);
1625
1626	sv_upgrade ((SV *)cv, SVt_PVCV);
1627
1628	CvANON_on (cv);
1629	CvISXSUB_on (cv);
1630	CvXSUB (cv) = xsub;
1631	GENSUB_ARG = arg;
1632
1633	return newRV_noinc ((SV *)cv);
1634	}
1635
1636	/** Coro ********************************************************************/	1792	/** Coro ********************************************************************/
1637		1793
1638	INLINE void	1794	INLINE void
1639	coro_enq (pTHX_ struct coro *coro)	1795	coro_enq (pTHX_ struct coro *coro)
1640	{	1796	{
…		…
1665	}	1821	}
1666		1822
1667	return 0;	1823	return 0;
1668	}	1824	}
1669		1825
		1826	static void
		1827	invoke_sv_ready_hook_helper (void)
		1828	{
		1829	dTHX;
		1830	dSP;
		1831
		1832	ENTER;
		1833	SAVETMPS;
		1834
		1835	PUSHMARK (SP);
		1836	PUTBACK;
		1837	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1838
		1839	FREETMPS;
		1840	LEAVE;
		1841	}
		1842
1670	static int	1843	static int
1671	api_ready (pTHX_ SV *coro_sv)	1844	api_ready (pTHX_ SV *coro_sv)
1672	{	1845	{
1673	struct coro *coro;
1674	SV *sv_hook;
1675	void (*xs_hook)(void);
1676
1677	coro = SvSTATE (coro_sv);	1846	struct coro *coro = SvSTATE (coro_sv);
1678		1847
1679	if (coro->flags & CF_READY)	1848	if (coro->flags & CF_READY)
1680	return 0;	1849	return 0;
1681		1850
1682	coro->flags |= CF_READY;	1851	coro->flags |= CF_READY;
1683		1852
1684	sv_hook = coro_nready ? 0 : coro_readyhook;
1685	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1686
1687	coro_enq (aTHX_ coro);	1853	coro_enq (aTHX_ coro);
1688	++coro_nready;
1689		1854
1690	if (sv_hook)	1855	if (!coro_nready++)
1691	{	1856	if (coroapi.readyhook)
1692	dSP;	1857	coroapi.readyhook ();
1693
1694	ENTER;
1695	SAVETMPS;
1696
1697	PUSHMARK (SP);
1698	PUTBACK;
1699	call_sv (sv_hook, G_VOID | G_DISCARD);
1700
1701	FREETMPS;
1702	LEAVE;
1703	}
1704
1705	if (xs_hook)
1706	xs_hook ();
1707		1858
1708	return 1;	1859	return 1;
1709	}	1860	}
1710		1861
1711	static int	1862	static int
…		…
1739	struct coro *next = coro_deq (aTHX);	1890	struct coro *next = coro_deq (aTHX);
1740		1891
1741	if (expect_true (next))	1892	if (expect_true (next))
1742	{	1893	{
1743	/* cannot transfer to destroyed coros, skip and look for next */	1894	/* cannot transfer to destroyed coros, skip and look for next */
1744	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))	1895	if (expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1745	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */	1896	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1746	else	1897	else
1747	{	1898	{
1748	next->flags &= ~CF_READY;	1899	next->flags &= ~CF_READY;
1749	--coro_nready;	1900	--coro_nready;
…		…
1756	{	1907	{
1757	/* nothing to schedule: call the idle handler */	1908	/* nothing to schedule: call the idle handler */
1758	if (SvROK (sv_idle)	1909	if (SvROK (sv_idle)
1759	&& SvOBJECT (SvRV (sv_idle)))	1910	&& SvOBJECT (SvRV (sv_idle)))
1760	{	1911	{
		1912	if (SvRV (sv_idle) == SvRV (coro_current))
		1913	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1914
1761	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1915	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1762	api_ready (aTHX_ SvRV (sv_idle));	1916	api_ready (aTHX_ SvRV (sv_idle));
1763	--coro_nready;	1917	--coro_nready;
1764	}	1918	}
1765	else	1919	else
1766	{	1920	{
		1921	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1767	dSP;	1922	dSP;
1768		1923
1769	ENTER;	1924	ENTER;
1770	SAVETMPS;	1925	SAVETMPS;
1771		1926
…		…
1878	coro->slot->runops = RUNOPS_DEFAULT;	2033	coro->slot->runops = RUNOPS_DEFAULT;
1879	}	2034	}
1880	}	2035	}
1881		2036
1882	static void	2037	static void
		2038	coro_push_av (pTHX_ AV *av, I32 gimme_v)
		2039	{
		2040	if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
		2041	{
		2042	dSP;
		2043
		2044	if (gimme_v == G_SCALAR)
		2045	XPUSHs (AvARRAY (av)[AvFILLp (av)]);
		2046	else
		2047	{
		2048	int i;
		2049	EXTEND (SP, AvFILLp (av) + 1);
		2050
		2051	for (i = 0; i <= AvFILLp (av); ++i)
		2052	PUSHs (AvARRAY (av)[i]);
		2053	}
		2054
		2055	PUTBACK;
		2056	}
		2057	}
		2058
		2059	static void
		2060	coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
		2061	{
		2062	if (!coro->on_destroy)
		2063	coro->on_destroy = newAV ();
		2064
		2065	av_push (coro->on_destroy, cb);
		2066	}
		2067
		2068	static void
		2069	slf_destroy_join (pTHX_ struct CoroSLF *frame)
		2070	{
		2071	SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
		2072	}
		2073
		2074	static int
		2075	slf_check_join (pTHX_ struct CoroSLF *frame)
		2076	{
		2077	struct coro *coro = (struct coro *)frame->data;
		2078
		2079	if (!coro->status)
		2080	return 1;
		2081
		2082	frame->destroy = 0;
		2083
		2084	coro_push_av (aTHX_ coro->status, GIMME_V);
		2085
		2086	SvREFCNT_dec ((SV *)coro->hv);
		2087
		2088	return 0;
		2089	}
		2090
		2091	static void
		2092	slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2093	{
		2094	struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
		2095
		2096	if (items > 1)
		2097	croak ("join called with too many arguments");
		2098
		2099	if (coro->status)
		2100	frame->prepare = prepare_nop;
		2101	else
		2102	{
		2103	coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
		2104	frame->prepare = prepare_schedule;
		2105	}
		2106
		2107	frame->check = slf_check_join;
		2108	frame->destroy = slf_destroy_join;
		2109	frame->data = (void *)coro;
		2110	SvREFCNT_inc (coro->hv);
		2111	}
		2112
		2113	static void
1883	coro_call_on_destroy (pTHX_ struct coro *coro)	2114	coro_call_on_destroy (pTHX_ struct coro *coro)
1884	{	2115	{
1885	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);	2116	AV *od = coro->on_destroy;
1886	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1887		2117
1888	if (on_destroyp)	2118	if (!od)
1889	{	2119	return;
1890	AV *on_destroy = (AV *)SvRV (*on_destroyp);
1891		2120
1892	while (AvFILLp (on_destroy) >= 0)	2121	while (AvFILLp (od) >= 0)
		2122	{
		2123	SV *cb = sv_2mortal (av_pop (od));
		2124
		2125	/* coro hv's (and only hv's at the moment) are supported as well */
		2126	if (SvSTATEhv_p (aTHX_ cb))
		2127	api_ready (aTHX_ cb);
		2128	else
1893	{	2129	{
1894	dSP; /* don't disturb outer sp */	2130	dSP; /* don't disturb outer sp */
1895	SV *cb = av_pop (on_destroy);
1896
1897	PUSHMARK (SP);	2131	PUSHMARK (SP);
1898		2132
1899	if (statusp)	2133	if (coro->status)
1900	{	2134	{
1901	int i;	2135	PUTBACK;
1902	AV *status = (AV *)SvRV (*statusp);	2136	coro_push_av (aTHX_ coro->status, G_ARRAY);
1903	EXTEND (SP, AvFILLp (status) + 1);	2137	SPAGAIN;
1904
1905	for (i = 0; i <= AvFILLp (status); ++i)
1906	PUSHs (AvARRAY (status)[i]);
1907	}	2138	}
1908		2139
1909	PUTBACK;	2140	PUTBACK;
1910	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);	2141	call_sv (cb, G_VOID | G_DISCARD);
1911	}	2142	}
1912	}	2143	}
1913	}	2144	}
1914		2145
1915	static void	2146	static void
1916	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2147	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1917	{	2148	{
		2149	AV *av;
		2150
		2151	if (coro->status)
		2152	{
		2153	av = coro->status;
		2154	av_clear (av);
		2155	}
		2156	else
		2157	av = coro->status = newAV ();
		2158
		2159	/* items are actually not so common, so optimise for this case */
		2160	if (items)
		2161	{
1918	int i;	2162	int i;
1919	HV *hv = (HV *)SvRV (coro_current);
1920	AV *av = newAV ();
1921		2163
1922	av_extend (av, items - 1);	2164	av_extend (av, items - 1);
		2165
1923	for (i = 0; i < items; ++i)	2166	for (i = 0; i < items; ++i)
1924	av_push (av, SvREFCNT_inc_NN (arg [i]));	2167	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2168	}
		2169	}
1925		2170
1926	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2171	static void
1927		2172	slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
		2173	{
1928	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2174	av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1929	api_ready (aTHX_ sv_manager);	2175	api_ready (aTHX_ sv_manager);
1930		2176
1931	frame->prepare = prepare_schedule;	2177	frame->prepare = prepare_schedule;
1932	frame->check = slf_check_repeat;	2178	frame->check = slf_check_repeat;
1933		2179
1934	/* as a minor optimisation, we could unwind all stacks here */	2180	/* as a minor optimisation, we could unwind all stacks here */
1935	/* but that puts extra pressure on pp_slf, and is not worth much */	2181	/* but that puts extra pressure on pp_slf, and is not worth much */
1936	/*coro_unwind_stacks (aTHX);*/	2182	/*coro_unwind_stacks (aTHX);*/
		2183	}
		2184
		2185	static void
		2186	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2187	{
		2188	HV *coro_hv = (HV *)SvRV (coro_current);
		2189
		2190	coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
		2191	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2192	}
		2193
		2194	static void
		2195	slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2196	{
		2197	HV *coro_hv;
		2198	struct coro *coro;
		2199
		2200	if (items <= 0)
		2201	croak ("Coro::cancel called without coro object,");
		2202
		2203	coro = SvSTATE (arg [0]);
		2204	coro_hv = coro->hv;
		2205
		2206	coro_set_status (aTHX_ coro, arg + 1, items - 1);
		2207
		2208	if (expect_false (coro->flags & CF_NOCANCEL))
		2209	{
		2210	/* coro currently busy cancelling something, so just notify it */
		2211	coro->slf_frame.data = (void *)coro;
		2212
		2213	frame->prepare = prepare_nop;
		2214	frame->check = slf_check_nop;
		2215	}
		2216	else if (coro_hv == (HV *)SvRV (coro_current))
		2217	{
		2218	/* cancelling the current coro is allowed, and equals terminate */
		2219	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2220	}
		2221	else
		2222	{
		2223	struct coro *self = SvSTATE_current;
		2224
		2225	/* otherwise we cancel directly, purely for speed reasons
		2226	* unfortunately, this requires some magic trickery, as
		2227	* somebody else could cancel us, so we have to fight the cancellation.
		2228	* this is ugly, and hopefully fully worth the extra speed.
		2229	* besides, I can't get the slow-but-safe version working...
		2230	*/
		2231	slf_frame.data = 0;
		2232	self->flags |= CF_NOCANCEL;
		2233	coro_state_destroy (aTHX_ coro);
		2234	self->flags &= ~CF_NOCANCEL;
		2235
		2236	if (slf_frame.data)
		2237	{
		2238	/* while we were busy we have been cancelled, so terminate */
		2239	slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
		2240	}
		2241	else
		2242	{
		2243	frame->prepare = prepare_nop;
		2244	frame->check = slf_check_nop;
		2245	}
		2246	}
		2247	}
		2248
		2249	static int
		2250	slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
		2251	{
		2252	frame->prepare = 0;
		2253	coro_unwind_stacks (aTHX);
		2254
		2255	slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
		2256
		2257	return 1;
		2258	}
		2259
		2260	static int
		2261	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
		2262	{
		2263	if (coro->cctx)
		2264	croak ("coro inside C callback, unable to cancel at this time, caught");
		2265
		2266	if (coro->flags & CF_NEW)
		2267	{
		2268	coro_set_status (aTHX_ coro, arg, items);
		2269	coro_state_destroy (aTHX_ coro);
		2270	}
		2271	else
		2272	{
		2273	if (!coro->slf_frame.prepare)
		2274	croak ("coro outside an SLF function, unable to cancel at this time, caught");
		2275
		2276	slf_destroy (aTHX_ coro);
		2277
		2278	coro_set_status (aTHX_ coro, arg, items);
		2279	coro->slf_frame.prepare = prepare_nop;
		2280	coro->slf_frame.check = slf_check_safe_cancel;
		2281
		2282	api_ready (aTHX_ (SV *)coro->hv);
		2283	}
		2284
		2285	return 1;
1937	}	2286	}
1938		2287
1939	/*****************************************************************************/	2288	/*****************************************************************************/
1940	/* async pool handler */	2289	/* async pool handler */
1941		2290
…		…
1981	coro->saved_deffh = 0;	2330	coro->saved_deffh = 0;
1982		2331
1983	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)	2332	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1984	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2333	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1985	{	2334	{
1986	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);	2335	slf_init_terminate_cancel_common (aTHX_ frame, hv);
1987	coro->invoke_av = newAV ();	2336	return;
1988
1989	frame->prepare = prepare_nop;
1990	}	2337	}
1991	else	2338	else
1992	{	2339	{
1993	av_clear (GvAV (PL_defgv));	2340	av_clear (GvAV (PL_defgv));
1994	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2341	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
…		…
2019		2366
2020	static void	2367	static void
2021	coro_rouse_callback (pTHX_ CV *cv)	2368	coro_rouse_callback (pTHX_ CV *cv)
2022	{	2369	{
2023	dXSARGS;	2370	dXSARGS;
2024	SV *data = (SV *)GENSUB_ARG;	2371	SV *data = (SV *)S_GENSUB_ARG;
2025		2372
2026	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2373	if (SvTYPE (SvRV (data)) != SVt_PVAV)
2027	{	2374	{
2028	/* first call, set args */	2375	/* first call, set args */
2029	SV *coro = SvRV (data);	2376	SV *coro = SvRV (data);
…		…
2095	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2442	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2096	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2443	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2097	croak ("Coro::rouse_wait called with illegal callback argument,");	2444	croak ("Coro::rouse_wait called with illegal callback argument,");
2098		2445
2099	{	2446	{
2100	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2447	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2101	SV *data = (SV *)GENSUB_ARG;	2448	SV *data = (SV *)S_GENSUB_ARG;
2102		2449
2103	frame->data = (void *)data;	2450	frame->data = (void *)data;
2104	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2451	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2105	frame->check = slf_check_rouse_wait;	2452	frame->check = slf_check_rouse_wait;
2106	}	2453	}
…		…
2110	coro_new_rouse_cb (pTHX)	2457	coro_new_rouse_cb (pTHX)
2111	{	2458	{
2112	HV *hv = (HV *)SvRV (coro_current);	2459	HV *hv = (HV *)SvRV (coro_current);
2113	struct coro *coro = SvSTATE_hv (hv);	2460	struct coro *coro = SvSTATE_hv (hv);
2114	SV *data = newRV_inc ((SV *)hv);	2461	SV *data = newRV_inc ((SV *)hv);
2115	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2462	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2116		2463
2117	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2464	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2118	SvREFCNT_dec (data); /* magicext increases the refcount */	2465	SvREFCNT_dec (data); /* magicext increases the refcount */
2119		2466
2120	SvREFCNT_dec (coro->rouse_cb);	2467	SvREFCNT_dec (coro->rouse_cb);
…		…
2217	static void	2564	static void
2218	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2565	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2219	{	2566	{
2220	frame->prepare = prepare_cede_notself;	2567	frame->prepare = prepare_cede_notself;
2221	frame->check = slf_check_nop;	2568	frame->check = slf_check_nop;
		2569	}
		2570
		2571	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
		2572	static void
		2573	slf_destroy (pTHX_ struct coro *coro)
		2574	{
		2575	/* this callback is reserved for slf functions needing to do cleanup */
		2576	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
		2577	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
		2578
		2579	/*
		2580	* The on_destroy above most likely is from an SLF call.
		2581	* Since by definition the SLF call will not finish when we destroy
		2582	* the coro, we will have to force-finish it here, otherwise
		2583	* cleanup functions cannot call SLF functions.
		2584	*/
		2585	coro->slf_frame.prepare = 0;
2222	}	2586	}
2223		2587
2224	/*	2588	/*
2225	* these not obviously related functions are all rolled into one	2589	* these not obviously related functions are all rolled into one
2226	* function to increase chances that they all will call transfer with the same	2590	* function to increase chances that they all will call transfer with the same
…		…
2295	croak (0);	2659	croak (0);
2296	}	2660	}
2297		2661
2298	/* return value handling - mostly like entersub */	2662	/* return value handling - mostly like entersub */
2299	/* make sure we put something on the stack in scalar context */	2663	/* make sure we put something on the stack in scalar context */
2300	if (GIMME_V == G_SCALAR)	2664	if (GIMME_V == G_SCALAR
		2665	&& expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2301	{	2666	{
2302	dSP;	2667	dSP;
2303	SV **bot = PL_stack_base + checkmark;	2668	SV **bot = PL_stack_base + checkmark;
2304		2669
2305	if (sp == bot) /* too few, push undef */	2670	if (sp == bot) /* too few, push undef */
2306	bot [1] = &PL_sv_undef;	2671	bot [1] = &PL_sv_undef;
2307	else if (sp != bot + 1) /* too many, take last one */	2672	else /* too many, take last one */
2308	bot [1] = *sp;	2673	bot [1] = *sp;
2309		2674
2310	SP = bot + 1;	2675	SP = bot + 1;
2311		2676
2312	PUTBACK;	2677	PUTBACK;
…		…
2345	if (PL_op->op_flags & OPf_STACKED)	2710	if (PL_op->op_flags & OPf_STACKED)
2346	{	2711	{
2347	if (items > slf_arga)	2712	if (items > slf_arga)
2348	{	2713	{
2349	slf_arga = items;	2714	slf_arga = items;
2350	free (slf_argv);	2715	Safefree (slf_argv);
2351	slf_argv = malloc (slf_arga * sizeof (SV *));	2716	New (0, slf_argv, slf_arga, SV *);
2352	}	2717	}
2353		2718
2354	slf_argc = items;	2719	slf_argc = items;
2355		2720
2356	for (i = 0; i < items; ++i)	2721	for (i = 0; i < items; ++i)
…		…
2552	SvREFCNT_dec (cb);	2917	SvREFCNT_dec (cb);
2553	}	2918	}
2554	}	2919	}
2555		2920
2556	static void	2921	static void
2557	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2922	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2558	{	2923	{
2559	/* call $sem->adjust (0) to possibly wake up some other waiters */	2924	/* call $sem->adjust (0) to possibly wake up some other waiters */
2560	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2925	coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2561	}	2926	}
2562		2927
2563	static int	2928	static int
2564	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)	2929	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2565	{	2930	{
2566	AV *av = (AV *)frame->data;	2931	AV *av = (AV *)frame->data;
2567	SV *count_sv = AvARRAY (av)[0];	2932	SV *count_sv = AvARRAY (av)[0];
		2933	SV *coro_hv = SvRV (coro_current);
2568		2934
2569	/* if we are about to throw, don't actually acquire the lock, just throw */	2935	/* if we are about to throw, don't actually acquire the lock, just throw */
2570	if (CORO_THROW)	2936	if (CORO_THROW)
2571	return 0;	2937	return 0;
2572	else if (SvIVX (count_sv) > 0)	2938	else if (SvIVX (count_sv) > 0)
2573	{	2939	{
2574	SvSTATE_current->on_destroy = 0;	2940	frame->destroy = 0;
2575		2941
2576	if (acquire)	2942	if (acquire)
2577	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2943	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2578	else	2944	else
2579	coro_semaphore_adjust (aTHX_ av, 0);	2945	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2584	{	2950	{
2585	int i;	2951	int i;
2586	/* if we were woken up but can't down, we look through the whole */	2952	/* if we were woken up but can't down, we look through the whole */
2587	/* waiters list and only add us if we aren't in there already */	2953	/* waiters list and only add us if we aren't in there already */
2588	/* this avoids some degenerate memory usage cases */	2954	/* this avoids some degenerate memory usage cases */
2589		2955	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2590	for (i = 1; i <= AvFILLp (av); ++i)
2591	if (AvARRAY (av)[i] == SvRV (coro_current))	2956	if (AvARRAY (av)[i] == coro_hv)
2592	return 1;	2957	return 1;
2593		2958
2594	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2959	av_push (av, SvREFCNT_inc (coro_hv));
2595	return 1;	2960	return 1;
2596	}	2961	}
2597	}	2962	}
2598		2963
2599	static int	2964	static int
…		…
2622	{	2987	{
2623	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2988	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2624		2989
2625	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2990	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2626	frame->prepare = prepare_schedule;	2991	frame->prepare = prepare_schedule;
2627
2628	/* to avoid race conditions when a woken-up coro gets terminated */	2992	/* to avoid race conditions when a woken-up coro gets terminated */
2629	/* we arrange for a temporary on_destroy that calls adjust (0) */	2993	/* we arrange for a temporary on_destroy that calls adjust (0) */
2630	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2994	frame->destroy = coro_semaphore_destroy;
2631	}	2995	}
2632	}	2996	}
2633		2997
2634	static void	2998	static void
2635	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2999	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
…		…
2643	{	3007	{
2644	if (items >= 2)	3008	if (items >= 2)
2645	{	3009	{
2646	/* callback form */	3010	/* callback form */
2647	AV *av = (AV *)SvRV (arg [0]);	3011	AV *av = (AV *)SvRV (arg [0]);
2648	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	3012	SV *cb_cv = s_get_cv_croak (arg [1]);
2649		3013
2650	av_push (av, SvREFCNT_inc_NN (cb_cv));	3014	av_push (av, SvREFCNT_inc_NN (cb_cv));
2651		3015
2652	if (SvIVX (AvARRAY (av)[0]) > 0)	3016	if (SvIVX (AvARRAY (av)[0]) > 0)
2653	coro_semaphore_adjust (aTHX_ av, 0);	3017	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2713	{	3077	{
2714	AV *av = (AV *)SvRV (arg [0]);	3078	AV *av = (AV *)SvRV (arg [0]);
2715		3079
2716	if (items >= 2)	3080	if (items >= 2)
2717	{	3081	{
2718	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	3082	SV *cb_cv = s_get_cv_croak (arg [1]);
2719	av_push (av, SvREFCNT_inc_NN (cb_cv));	3083	av_push (av, SvREFCNT_inc_NN (cb_cv));
2720		3084
2721	if (SvIVX (AvARRAY (av)[0]))	3085	if (SvIVX (AvARRAY (av)[0]))
2722	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */	3086	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2723		3087
2724	frame->prepare = prepare_nop;	3088	frame->prepare = prepare_nop;
2725	frame->check = slf_check_nop;	3089	frame->check = slf_check_nop;
2726	}	3090	}
2727	else if (SvIVX (AvARRAY (av)[0]))	3091	else if (SvIVX (AvARRAY (av)[0]))
…		…
2758		3122
2759	static void	3123	static void
2760	coro_aio_callback (pTHX_ CV *cv)	3124	coro_aio_callback (pTHX_ CV *cv)
2761	{	3125	{
2762	dXSARGS;	3126	dXSARGS;
2763	AV *state = (AV *)GENSUB_ARG;	3127	AV *state = (AV *)S_GENSUB_ARG;
2764	SV *coro = av_pop (state);	3128	SV *coro = av_pop (state);
2765	SV *data_sv = newSV (sizeof (struct io_state));	3129	SV *data_sv = newSV (sizeof (struct io_state));
2766		3130
2767	av_extend (state, items - 1);	3131	av_extend (state, items - 1);
2768		3132
…		…
2882		3246
2883	for (i = 0; i < items; ++i)	3247	for (i = 0; i < items; ++i)
2884	PUSHs (arg [i]);	3248	PUSHs (arg [i]);
2885		3249
2886	/* now push the callback closure */	3250	/* now push the callback closure */
2887	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	3251	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2888		3252
2889	/* now call the AIO function - we assume our request is uncancelable */	3253	/* now call the AIO function - we assume our request is uncancelable */
2890	PUTBACK;	3254	PUTBACK;
2891	call_sv ((SV *)req, G_VOID | G_DISCARD);	3255	call_sv ((SV *)req, G_VOID | G_DISCARD);
2892	}	3256	}
2893		3257
2894	/* now that the requets is going, we loop toll we have a result */	3258	/* now that the request is going, we loop till we have a result */
2895	frame->data = (void *)state;	3259	frame->data = (void *)state;
2896	frame->prepare = prepare_schedule;	3260	frame->prepare = prepare_schedule;
2897	frame->check = slf_check_aio_req;	3261	frame->check = slf_check_aio_req;
2898	}	3262	}
2899		3263
…		…
2910	/*****************************************************************************/	3274	/*****************************************************************************/
2911		3275
2912	#if CORO_CLONE	3276	#if CORO_CLONE
2913	# include "clone.c"	3277	# include "clone.c"
2914	#endif	3278	#endif
		3279
		3280	/*****************************************************************************/
		3281
		3282	static SV *
		3283	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3284	{
		3285	SV *coro_sv;
		3286	struct coro *coro;
		3287	MAGIC *mg;
		3288	HV *hv;
		3289	SV *cb;
		3290	int i;
		3291
		3292	if (argc > 0)
		3293	{
		3294	cb = s_get_cv_croak (argv [0]);
		3295
		3296	if (!is_coro)
		3297	{
		3298	if (CvISXSUB (cb))
		3299	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3300
		3301	if (!CvROOT (cb))
		3302	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3303	}
		3304	}
		3305
		3306	Newz (0, coro, 1, struct coro);
		3307	coro->args = newAV ();
		3308	coro->flags = CF_NEW;
		3309
		3310	if (coro_first) coro_first->prev = coro;
		3311	coro->next = coro_first;
		3312	coro_first = coro;
		3313
		3314	coro->hv = hv = newHV ();
		3315	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3316	mg->mg_flags |= MGf_DUP;
		3317	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3318
		3319	if (argc > 0)
		3320	{
		3321	av_extend (coro->args, argc + is_coro - 1);
		3322
		3323	if (is_coro)
		3324	{
		3325	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3326	cb = (SV *)cv_coro_run;
		3327	}
		3328
		3329	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3330
		3331	for (i = 1; i < argc; i++)
		3332	av_push (coro->args, newSVsv (argv [i]));
		3333	}
		3334
		3335	return coro_sv;
		3336	}
2915		3337
2916	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3338	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2917		3339
2918	PROTOTYPES: DISABLE	3340	PROTOTYPES: DISABLE
2919		3341
…		…
2972	coroapi.prepare_nop = prepare_nop;	3394	coroapi.prepare_nop = prepare_nop;
2973	coroapi.prepare_schedule = prepare_schedule;	3395	coroapi.prepare_schedule = prepare_schedule;
2974	coroapi.prepare_cede = prepare_cede;	3396	coroapi.prepare_cede = prepare_cede;
2975	coroapi.prepare_cede_notself = prepare_cede_notself;	3397	coroapi.prepare_cede_notself = prepare_cede_notself;
2976		3398
2977	{	3399	time_init (aTHX);
2978	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2979
2980	if (!svp) croak ("Time::HiRes is required");
2981	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2982
2983	nvtime = INT2PTR (double (*)(), SvIV (*svp));
2984	}
2985		3400
2986	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3401	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2987	}	3402	}
2988		3403
2989	SV *	3404	SV *
2990	new (char *klass, ...)	3405	new (SV *klass, ...)
2991	ALIAS:	3406	ALIAS:
2992	Coro::new = 1	3407	Coro::new = 1
2993	CODE:	3408	CODE:
2994	{	3409	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2995	struct coro *coro;	3410	OUTPUT:
2996	MAGIC *mg;
2997	HV *hv;
2998	CV *cb;
2999	int i;
3000
3001	if (items > 1)
3002	{
3003	cb = coro_sv_2cv (aTHX_ ST (1));
3004
3005	if (!ix)
3006	{
3007	if (CvISXSUB (cb))
3008	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3009
3010	if (!CvROOT (cb))
3011	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3012	}
3013	}
3014
3015	Newz (0, coro, 1, struct coro);
3016	coro->args = newAV ();
3017	coro->flags = CF_NEW;
3018
3019	if (coro_first) coro_first->prev = coro;
3020	coro->next = coro_first;
3021	coro_first = coro;
3022
3023	coro->hv = hv = newHV ();
3024	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3025	mg->mg_flags |= MGf_DUP;
3026	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3027
3028	if (items > 1)
3029	{
3030	av_extend (coro->args, items - 1 + ix - 1);
3031
3032	if (ix)
3033	{
3034	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3035	cb = cv_coro_run;
3036	}
3037
3038	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3039
3040	for (i = 2; i < items; i++)
3041	av_push (coro->args, newSVsv (ST (i)));
3042	}
3043	}
3044	OUTPUT:
3045	RETVAL	3411	RETVAL
3046		3412
3047	void	3413	void
3048	transfer (...)	3414	transfer (...)
3049	PROTOTYPE: $$	3415	PROTOTYPE: $$
3050	CODE:	3416	CODE:
3051	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3417	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3052
3053	bool
3054	_destroy (SV *coro_sv)
3055	CODE:
3056	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3057	OUTPUT:
3058	RETVAL
3059		3418
3060	void	3419	void
3061	_exit (int code)	3420	_exit (int code)
3062	PROTOTYPE: $	3421	PROTOTYPE: $
3063	CODE:	3422	CODE:
…		…
3139	CODE:	3498	CODE:
3140	{	3499	{
3141	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3500	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3142	{	3501	{
3143	struct coro *current = SvSTATE_current;	3502	struct coro *current = SvSTATE_current;
		3503	struct CoroSLF slf_save;
3144		3504
3145	if (current != coro)	3505	if (current != coro)
3146	{	3506	{
3147	PUTBACK;	3507	PUTBACK;
3148	save_perl (aTHX_ current);	3508	save_perl (aTHX_ current);
3149	load_perl (aTHX_ coro);	3509	load_perl (aTHX_ coro);
		3510	/* the coro is most likely in an active SLF call.
		3511	* while not strictly required (the code we execute is
		3512	* not allowed to call any SLF functions), it's cleaner
		3513	* to reinitialise the slf_frame and restore it later.
		3514	* This might one day allow us to actually do SLF calls
		3515	* from code executed here.
		3516	*/
		3517	slf_save = slf_frame;
		3518	slf_frame.prepare = 0;
3150	SPAGAIN;	3519	SPAGAIN;
3151	}	3520	}
3152		3521
3153	PUSHSTACK;	3522	PUSHSTACK;
3154		3523
…		…
3164	SPAGAIN;	3533	SPAGAIN;
3165		3534
3166	if (current != coro)	3535	if (current != coro)
3167	{	3536	{
3168	PUTBACK;	3537	PUTBACK;
		3538	slf_frame = slf_save;
3169	save_perl (aTHX_ coro);	3539	save_perl (aTHX_ coro);
3170	load_perl (aTHX_ current);	3540	load_perl (aTHX_ current);
3171	SPAGAIN;	3541	SPAGAIN;
3172	}	3542	}
3173	}	3543	}
…		…
3178	PROTOTYPE: $	3548	PROTOTYPE: $
3179	ALIAS:	3549	ALIAS:
3180	is_ready = CF_READY	3550	is_ready = CF_READY
3181	is_running = CF_RUNNING	3551	is_running = CF_RUNNING
3182	is_new = CF_NEW	3552	is_new = CF_NEW
3183	is_destroyed = CF_DESTROYED	3553	is_destroyed = CF_ZOMBIE
		3554	is_zombie = CF_ZOMBIE
3184	is_suspended = CF_SUSPENDED	3555	is_suspended = CF_SUSPENDED
3185	CODE:	3556	CODE:
3186	RETVAL = boolSV (coro->flags & ix);	3557	RETVAL = boolSV (coro->flags & ix);
3187	OUTPUT:	3558	OUTPUT:
3188	RETVAL	3559	RETVAL
3189		3560
3190	void	3561	void
3191	throw (Coro::State self, SV *throw = &PL_sv_undef)	3562	throw (Coro::State self, SV *exception = &PL_sv_undef)
3192	PROTOTYPE: $;$	3563	PROTOTYPE: $;$
3193	CODE:	3564	CODE:
3194	{	3565	{
3195	struct coro *current = SvSTATE_current;	3566	struct coro *current = SvSTATE_current;
3196	SV **throwp = self == current ? &CORO_THROW : &self->except;	3567	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3197	SvREFCNT_dec (*throwp);	3568	SvREFCNT_dec (*exceptionp);
3198	SvGETMAGIC (throw);	3569	SvGETMAGIC (exception);
3199	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3570	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3200	}	3571	}
3201		3572
3202	void	3573	void
3203	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3574	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3204	PROTOTYPE: $;$	3575	PROTOTYPE: $;$
…		…
3259		3630
3260	void	3631	void
3261	cancel (Coro::State self)	3632	cancel (Coro::State self)
3262	CODE:	3633	CODE:
3263	coro_state_destroy (aTHX_ self);	3634	coro_state_destroy (aTHX_ self);
3264	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */	3635
		3636	SV *
		3637	enable_times (int enabled = enable_times)
		3638	CODE:
		3639	{
		3640	RETVAL = boolSV (enable_times);
		3641
		3642	if (enabled != enable_times)
		3643	{
		3644	enable_times = enabled;
		3645
		3646	coro_times_update ();
		3647	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3648	}
		3649	}
		3650	OUTPUT:
		3651	RETVAL
		3652
		3653	void
		3654	times (Coro::State self)
		3655	PPCODE:
		3656	{
		3657	struct coro *current = SvSTATE (coro_current);
		3658
		3659	if (expect_false (current == self))
		3660	{
		3661	coro_times_update ();
		3662	coro_times_add (SvSTATE (coro_current));
		3663	}
		3664
		3665	EXTEND (SP, 2);
		3666	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3667	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3668
		3669	if (expect_false (current == self))
		3670	coro_times_sub (SvSTATE (coro_current));
		3671	}
		3672
		3673	void
		3674	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3675	CODE:
		3676	{
		3677	struct coro *current = SvSTATE_current;
		3678
		3679	if (current == coro)
		3680	SWAP_SVS (current);
		3681
		3682	if (!coro->swap_sv)
		3683	coro->swap_sv = newAV ();
		3684
		3685	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3686	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3687
		3688	if (current == coro)
		3689	SWAP_SVS (current);
		3690	}
3265		3691
3266		3692
3267	MODULE = Coro::State PACKAGE = Coro	3693	MODULE = Coro::State PACKAGE = Coro
3268		3694
3269	BOOT:	3695	BOOT:
3270	{	3696	{
3271	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3697	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3272	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3698	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3273	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3699	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3274	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3275	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3700	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3276	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3701	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3277	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3702	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3278	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3703	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3279	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3704	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3280		3705
3281	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3706	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3282	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3707	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3283	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3708	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3284	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3709	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3285		3710
3286	coro_stash = gv_stashpv ("Coro", TRUE);	3711	coro_stash = gv_stashpv ("Coro", TRUE);
3287		3712
3288	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	3713	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3289	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	3714	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3290	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	3715	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3308	sv_setiv (sv, (IV)&coroapi);	3733	sv_setiv (sv, (IV)&coroapi);
3309	SvREADONLY_on (sv);	3734	SvREADONLY_on (sv);
3310	}	3735	}
3311	}	3736	}
3312		3737
		3738	SV *
		3739	async (...)
		3740	PROTOTYPE: &@
		3741	CODE:
		3742	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3743	api_ready (aTHX_ RETVAL);
		3744	OUTPUT:
		3745	RETVAL
		3746
		3747	void
		3748	_destroy (Coro::State coro)
		3749	CODE:
		3750	/* used by the manager thread */
		3751	coro_state_destroy (aTHX_ coro);
		3752
		3753	void
		3754	on_destroy (Coro::State coro, SV *cb)
		3755	CODE:
		3756	coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
		3757
		3758	void
		3759	join (...)
		3760	CODE:
		3761	CORO_EXECUTE_SLF_XS (slf_init_join);
		3762
3313	void	3763	void
3314	terminate (...)	3764	terminate (...)
3315	CODE:	3765	CODE:
3316	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3766	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3767
		3768	void
		3769	cancel (...)
		3770	CODE:
		3771	CORO_EXECUTE_SLF_XS (slf_init_cancel);
		3772
		3773	int
		3774	safe_cancel (Coro::State self, ...)
		3775	C_ARGS: aTHX_ self, &ST (1), items - 1
3317		3776
3318	void	3777	void
3319	schedule (...)	3778	schedule (...)
3320	CODE:	3779	CODE:
3321	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3780	CORO_EXECUTE_SLF_XS (slf_init_schedule);
…		…
3351	_set_readyhook (SV *hook)	3810	_set_readyhook (SV *hook)
3352	PROTOTYPE: $	3811	PROTOTYPE: $
3353	CODE:	3812	CODE:
3354	SvREFCNT_dec (coro_readyhook);	3813	SvREFCNT_dec (coro_readyhook);
3355	SvGETMAGIC (hook);	3814	SvGETMAGIC (hook);
		3815	if (SvOK (hook))
		3816	{
3356	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3817	coro_readyhook = newSVsv (hook);
		3818	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3819	}
		3820	else
		3821	{
		3822	coro_readyhook = 0;
		3823	CORO_READYHOOK = 0;
		3824	}
3357		3825
3358	int	3826	int
3359	prio (Coro::State coro, int newprio = 0)	3827	prio (Coro::State coro, int newprio = 0)
3360	PROTOTYPE: $;$	3828	PROTOTYPE: $;$
3361	ALIAS:	3829	ALIAS:
…		…
3367	if (items > 1)	3835	if (items > 1)
3368	{	3836	{
3369	if (ix)	3837	if (ix)
3370	newprio = coro->prio - newprio;	3838	newprio = coro->prio - newprio;
3371		3839
3372	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3840	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3373	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3841	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3374		3842
3375	coro->prio = newprio;	3843	coro->prio = newprio;
3376	}	3844	}
3377	}	3845	}
3378	OUTPUT:	3846	OUTPUT:
…		…
3425	for (i = 1; i < items; ++i)	3893	for (i = 1; i < items; ++i)
3426	av_push (av, SvREFCNT_inc_NN (ST (i)));	3894	av_push (av, SvREFCNT_inc_NN (ST (i)));
3427		3895
3428	if ((SV *)hv == &PL_sv_undef)	3896	if ((SV *)hv == &PL_sv_undef)
3429	{	3897	{
3430	PUSHMARK (SP);	3898	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3431	EXTEND (SP, 2);
3432	PUSHs (sv_Coro);
3433	PUSHs ((SV *)cv_pool_handler);
3434	PUTBACK;
3435	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3436	SPAGAIN;
3437
3438	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3899	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3900	SvREFCNT_dec (sv);
3439	}	3901	}
3440		3902
3441	{	3903	{
3442	struct coro *coro = SvSTATE_hv (hv);	3904	struct coro *coro = SvSTATE_hv (hv);
3443		3905
…		…
3477	CODE:	3939	CODE:
3478	{	3940	{
3479	struct coro *coro = SvSTATE_current;	3941	struct coro *coro = SvSTATE_current;
3480	AV **avp = ix ? &coro->on_leave : &coro->on_enter;	3942	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3481		3943
3482	block = (SV *)coro_sv_2cv (aTHX_ block);	3944	block = s_get_cv_croak (block);
3483		3945
3484	if (!*avp)	3946	if (!*avp)
3485	*avp = newAV ();	3947	*avp = newAV ();
3486		3948
3487	av_push (*avp, SvREFCNT_inc (block));	3949	av_push (*avp, SvREFCNT_inc (block));
…		…
3687		4149
3688	void	4150	void
3689	_register (char *target, char *proto, SV *req)	4151	_register (char *target, char *proto, SV *req)
3690	CODE:	4152	CODE:
3691	{	4153	{
3692	CV *req_cv = coro_sv_2cv (aTHX_ req);	4154	SV *req_cv = s_get_cv_croak (req);
3693	/* newXSproto doesn't return the CV on 5.8 */	4155	/* newXSproto doesn't return the CV on 5.8 */
3694	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	4156	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3695	sv_setpv ((SV *)slf_cv, proto);	4157	sv_setpv ((SV *)slf_cv, proto);
3696	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	4158	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3697	}	4159	}
3698		4160
		4161	MODULE = Coro::State PACKAGE = Coro::Select
		4162
		4163	void
		4164	patch_pp_sselect ()
		4165	CODE:
		4166	if (!coro_old_pp_sselect)
		4167	{
		4168	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		4169	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		4170	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		4171	}
		4172
		4173	void
		4174	unpatch_pp_sselect ()
		4175	CODE:
		4176	if (coro_old_pp_sselect)
		4177	{
		4178	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		4179	coro_old_pp_sselect = 0;
		4180	}
		4181

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