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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.318 by root, Thu Nov 20 07:02:43 2008 UTC vs.
Revision 1.385 by root, Sat Feb 19 05:42:46 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>
		21
		22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
16		25
17	#ifdef WIN32	26	#ifdef WIN32
18	# undef setjmp	27	# undef setjmp
19	# undef longjmp	28	# undef longjmp
20	# undef _exit	29	# undef _exit
…		…
51	#endif	60	#endif
52		61
53	/* the maximum number of idle cctx that will be pooled */	62	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	63	static int cctx_max_idle = 4;
55		64
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106
107	/* 5.8.7 */
108	#ifndef SvRV_set
109	# define SvRV_set(s,v) SvRV(s) = (v)
110	#endif
111
112	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	65	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113	# undef CORO_STACKGUARD	66	# undef CORO_STACKGUARD
114	#endif	67	#endif
115		68
116	#ifndef CORO_STACKGUARD	69	#ifndef CORO_STACKGUARD
…		…
130	#else	83	#else
131	# define dSTACKLEVEL volatile void *stacklevel	84	# define dSTACKLEVEL volatile void *stacklevel
132	# define STACKLEVEL ((void *)&stacklevel)	85	# define STACKLEVEL ((void *)&stacklevel)
133	#endif	86	#endif
134		87
135	#define IN_DESTRUCT (PL_main_cv == Nullcv)	88	#define IN_DESTRUCT PL_dirty
136		89
137	#if __GNUC__ >= 3	90	#if __GNUC__ >= 3
138	# define attribute(x) __attribute__(x)	91	# define attribute(x) __attribute__(x)
139	# define expect(expr,value) __builtin_expect ((expr),(value))	92	# define expect(expr,value) __builtin_expect ((expr), (value))
140	# define INLINE static inline	93	# define INLINE static inline
141	#else	94	#else
142	# define attribute(x)	95	# define attribute(x)
143	# define expect(expr,value) (expr)	96	# define expect(expr,value) (expr)
144	# define INLINE static	97	# define INLINE static
…		…
156	# if CORO_PTHREAD	109	# if CORO_PTHREAD
157	static void *coro_thx;	110	static void *coro_thx;
158	# endif	111	# endif
159	#endif	112	#endif
160		113
		114	#ifdef __linux
		115	# include <time.h> /* for timespec */
		116	# include <syscall.h> /* for SYS_* */
		117	# ifdef SYS_clock_gettime
		118	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		119	# define CORO_CLOCK_MONOTONIC 1
		120	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		121	# endif
		122	#endif
		123
161	static double (*nvtime)(); /* so why doesn't it take void? */	124	static double (*nvtime)(); /* so why doesn't it take void? */
		125	static void (*u2time)(pTHX_ UV ret[2]);
162		126
163	/* we hijack an hopefully unused CV flag for our purposes */	127	/* we hijack an hopefully unused CV flag for our purposes */
164	#define CVf_SLF 0x4000	128	#define CVf_SLF 0x4000
165	static OP *pp_slf (pTHX);	129	static OP *pp_slf (pTHX);
166		130
…		…
172	static HV *coro_state_stash, *coro_stash;	136	static HV *coro_state_stash, *coro_stash;
173	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	137	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174		138
175	static AV *av_destroy; /* destruction queue */	139	static AV *av_destroy; /* destruction queue */
176	static SV *sv_manager; /* the manager coro */	140	static SV *sv_manager; /* the manager coro */
		141	static SV *sv_idle; /* $Coro::idle */
177		142
178	static GV *irsgv; /* $/ */	143	static GV *irsgv; /* $/ */
179	static GV *stdoutgv; /* *STDOUT */	144	static GV *stdoutgv; /* *STDOUT */
180	static SV *rv_diehook;	145	static SV *rv_diehook;
181	static SV *rv_warnhook;	146	static SV *rv_warnhook;
…		…
186	static SV *sv_pool_size;	151	static SV *sv_pool_size;
187	static SV *sv_async_pool_idle; /* description string */	152	static SV *sv_async_pool_idle; /* description string */
188	static AV *av_async_pool; /* idle pool */	153	static AV *av_async_pool; /* idle pool */
189	static SV *sv_Coro; /* class string */	154	static SV *sv_Coro; /* class string */
190	static CV *cv_pool_handler;	155	static CV *cv_pool_handler;
191	static CV *cv_coro_state_new;
192		156
193	/* Coro::AnyEvent */	157	/* Coro::AnyEvent */
194	static SV *sv_activity;	158	static SV *sv_activity;
		159
		160	/* enable processtime/realtime profiling */
		161	static char enable_times;
		162	typedef U32 coro_ts[2];
		163	static coro_ts time_real, time_cpu;
		164	static char times_valid;
195		165
196	static struct coro_cctx *cctx_first;	166	static struct coro_cctx *cctx_first;
197	static int cctx_count, cctx_idle;	167	static int cctx_count, cctx_idle;
198		168
199	enum {	169	enum {
…		…
225	int valgrind_id;	195	int valgrind_id;
226	#endif	196	#endif
227	unsigned char flags;	197	unsigned char flags;
228	} coro_cctx;	198	} coro_cctx;
229		199
		200	coro_cctx *cctx_current; /* the currently running cctx */
		201
		202	/*****************************************************************************/
		203
230	enum {	204	enum {
231	CF_RUNNING = 0x0001, /* coroutine is running */	205	CF_RUNNING = 0x0001, /* coroutine is running */
232	CF_READY = 0x0002, /* coroutine is ready */	206	CF_READY = 0x0002, /* coroutine is ready */
233	CF_NEW = 0x0004, /* has never been switched to */	207	CF_NEW = 0x0004, /* has never been switched to */
234	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	208	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		209	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
235	};	210	};
236		211
237	/* the structure where most of the perl state is stored, overlaid on the cxstack */	212	/* the structure where most of the perl state is stored, overlaid on the cxstack */
238	typedef struct	213	typedef struct
239	{	214	{
240	SV *defsv;	215	SV *defsv;
241	AV *defav;	216	AV *defav;
242	SV *errsv;	217	SV *errsv;
243	SV *irsgv;	218	SV *irsgv;
		219	HV *hinthv;
244	#define VAR(name,type) type name;	220	#define VAR(name,type) type name;
245	# include "state.h"	221	# include "state.h"
246	#undef VAR	222	#undef VAR
247	} perl_slots;	223	} perl_slots;
248		224
…		…
250		226
251	/* this is a structure representing a perl-level coroutine */	227	/* this is a structure representing a perl-level coroutine */
252	struct coro {	228	struct coro {
253	/* the C coroutine allocated to this perl coroutine, if any */	229	/* the C coroutine allocated to this perl coroutine, if any */
254	coro_cctx *cctx;	230	coro_cctx *cctx;
		231
		232	/* ready queue */
		233	struct coro *next_ready;
255		234
256	/* state data */	235	/* state data */
257	struct CoroSLF slf_frame; /* saved slf frame */	236	struct CoroSLF slf_frame; /* saved slf frame */
258	AV *mainstack;	237	AV *mainstack;
259	perl_slots *slot; /* basically the saved sp */	238	perl_slots *slot; /* basically the saved sp */
…		…
261	CV *startcv; /* the CV to execute */	240	CV *startcv; /* the CV to execute */
262	AV *args; /* data associated with this coroutine (initial args) */	241	AV *args; /* data associated with this coroutine (initial args) */
263	int refcnt; /* coroutines are refcounted, yes */	242	int refcnt; /* coroutines are refcounted, yes */
264	int flags; /* CF_ flags */	243	int flags; /* CF_ flags */
265	HV *hv; /* the perl hash associated with this coro, if any */	244	HV *hv; /* the perl hash associated with this coro, if any */
266	void (*on_destroy)(pTHX_ struct coro *coro);	245	void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
267		246
268	/* statistics */	247	/* statistics */
269	int usecount; /* number of transfers to this coro */	248	int usecount; /* number of transfers to this coro */
270		249
271	/* coro process data */	250	/* coro process data */
…		…
276	/* async_pool */	255	/* async_pool */
277	SV *saved_deffh;	256	SV *saved_deffh;
278	SV *invoke_cb;	257	SV *invoke_cb;
279	AV *invoke_av;	258	AV *invoke_av;
280		259
		260	/* on_enter/on_leave */
		261	AV *on_enter;
		262	AV *on_leave;
		263
		264	/* swap_sv */
		265	AV *swap_sv;
		266
		267	/* times */
		268	coro_ts t_cpu, t_real;
		269
281	/* linked list */	270	/* linked list */
282	struct coro *next, *prev;	271	struct coro *next, *prev;
283	};	272	};
284		273
285	typedef struct coro *Coro__State;	274	typedef struct coro *Coro__State;
…		…
290	/* the mainr easonw e don't support windows process emulation */	279	/* the mainr easonw e don't support windows process emulation */
291	static struct CoroSLF slf_frame; /* the current slf frame */	280	static struct CoroSLF slf_frame; /* the current slf frame */
292		281
293	/** Coro ********************************************************************/	282	/** Coro ********************************************************************/
294		283
295	#define PRIO_MAX 3	284	#define CORO_PRIO_MAX 3
296	#define PRIO_HIGH 1	285	#define CORO_PRIO_HIGH 1
297	#define PRIO_NORMAL 0	286	#define CORO_PRIO_NORMAL 0
298	#define PRIO_LOW -1	287	#define CORO_PRIO_LOW -1
299	#define PRIO_IDLE -3	288	#define CORO_PRIO_IDLE -3
300	#define PRIO_MIN -4	289	#define CORO_PRIO_MIN -4
301		290
302	/* for Coro.pm */	291	/* for Coro.pm */
303	static SV *coro_current;	292	static SV *coro_current;
304	static SV *coro_readyhook;	293	static SV *coro_readyhook;
305	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	294	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
306	static CV *cv_coro_run, *cv_coro_terminate;	295	static CV *cv_coro_run, *cv_coro_terminate;
307	static struct coro *coro_first;	296	static struct coro *coro_first;
308	#define coro_nready coroapi.nready	297	#define coro_nready coroapi.nready
		298
		299	/** Coro::Select ************************************************************/
		300
		301	static OP *(*coro_old_pp_sselect) (pTHX);
		302	static SV *coro_select_select;
		303
		304	/* horrible hack, but if it works... */
		305	static OP *
		306	coro_pp_sselect (pTHX)
		307	{
		308	dSP;
		309	PUSHMARK (SP - 4); /* fake argument list */
		310	XPUSHs (coro_select_select);
		311	PUTBACK;
		312
		313	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		314	PL_op->op_flags |= OPf_STACKED;
		315	PL_op->op_private = 0;
		316	return PL_ppaddr [OP_ENTERSUB](aTHX);
		317	}
309		318
310	/** lowlevel stuff **********************************************************/	319	/** lowlevel stuff **********************************************************/
311		320
312	static SV *	321	static SV *
313	coro_get_sv (pTHX_ const char *name, int create)	322	coro_get_sv (pTHX_ const char *name, int create)
…		…
337	get_hv (name, create);	346	get_hv (name, create);
338	#endif	347	#endif
339	return get_hv (name, create);	348	return get_hv (name, create);
340	}	349	}
341		350
342	/* may croak */	351	INLINE void
343	INLINE CV *	352	coro_times_update ()
344	coro_sv_2cv (pTHX_ SV *sv)
345	{	353	{
		354	#ifdef coro_clock_gettime
		355	struct timespec ts;
		356
		357	ts.tv_sec = ts.tv_nsec = 0;
		358	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		359	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		360
		361	ts.tv_sec = ts.tv_nsec = 0;
		362	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		363	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		364	#else
		365	dTHX;
		366	UV tv[2];
		367
		368	u2time (aTHX_ tv);
		369	time_real [0] = tv [0];
		370	time_real [1] = tv [1] * 1000;
		371	#endif
		372	}
		373
		374	INLINE void
		375	coro_times_add (struct coro *c)
		376	{
		377	c->t_real [1] += time_real [1];
		378	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		379	c->t_real [0] += time_real [0];
		380
		381	c->t_cpu [1] += time_cpu [1];
		382	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		383	c->t_cpu [0] += time_cpu [0];
		384	}
		385
		386	INLINE void
		387	coro_times_sub (struct coro *c)
		388	{
		389	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		390	c->t_real [1] -= time_real [1];
		391	c->t_real [0] -= time_real [0];
		392
		393	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		394	c->t_cpu [1] -= time_cpu [1];
		395	c->t_cpu [0] -= time_cpu [0];
		396	}
		397
		398	/*****************************************************************************/
		399	/* magic glue */
		400
		401	#define CORO_MAGIC_type_cv 26
		402	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		403
		404	#define CORO_MAGIC_NN(sv, type) \
		405	(expect_true (SvMAGIC (sv)->mg_type == type) \
		406	? SvMAGIC (sv) \
		407	: mg_find (sv, type))
		408
		409	#define CORO_MAGIC(sv, type) \
		410	(expect_true (SvMAGIC (sv)) \
		411	? CORO_MAGIC_NN (sv, type) \
		412	: 0)
		413
		414	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		415	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		416
		417	INLINE struct coro *
		418	SvSTATE_ (pTHX_ SV *coro)
		419	{
346	HV *st;	420	HV *stash;
347	GV *gvp;	421	MAGIC *mg;
348	return sv_2cv (sv, &st, &gvp, 0);	422
		423	if (SvROK (coro))
		424	coro = SvRV (coro);
		425
		426	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		427	croak ("Coro::State object required");
		428
		429	stash = SvSTASH (coro);
		430	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		431	{
		432	/* very slow, but rare, check */
		433	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		434	croak ("Coro::State object required");
		435	}
		436
		437	mg = CORO_MAGIC_state (coro);
		438	return (struct coro *)mg->mg_ptr;
349	}	439	}
		440
		441	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		442
		443	/* faster than SvSTATE, but expects a coroutine hv */
		444	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		445	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		446
		447	/*****************************************************************************/
		448	/* padlist management and caching */
350		449
351	static AV *	450	static AV *
352	coro_clone_padlist (pTHX_ CV *cv)	451	coro_derive_padlist (pTHX_ CV *cv)
353	{	452	{
354	AV *padlist = CvPADLIST (cv);	453	AV *padlist = CvPADLIST (cv);
355	AV *newpadlist, *newpad;	454	AV *newpadlist, *newpad;
356		455
357	newpadlist = newAV ();	456	newpadlist = newAV ();
…		…
362	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	461	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
363	#endif	462	#endif
364	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	463	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
365	--AvFILLp (padlist);	464	--AvFILLp (padlist);
366		465
367	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	466	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
368	av_store (newpadlist, 1, (SV *)newpad);	467	av_store (newpadlist, 1, (SV *)newpad);
369		468
370	return newpadlist;	469	return newpadlist;
371	}	470	}
372		471
373	static void	472	static void
374	free_padlist (pTHX_ AV *padlist)	473	free_padlist (pTHX_ AV *padlist)
375	{	474	{
376	/* may be during global destruction */	475	/* may be during global destruction */
377	if (SvREFCNT (padlist))	476	if (!IN_DESTRUCT)
378	{	477	{
379	I32 i = AvFILLp (padlist);	478	I32 i = AvFILLp (padlist);
380	while (i >= 0)	479
		480	while (i > 0) /* special-case index 0 */
381	{	481	{
382	SV **svp = av_fetch (padlist, i--, FALSE);	482	/* we try to be extra-careful here */
383	if (svp)	483	AV *av = (AV *)AvARRAY (padlist)[i--];
384	{	484	I32 j = AvFILLp (av);
385	SV *sv;	485
386	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	486	while (j >= 0)
		487	SvREFCNT_dec (AvARRAY (av)[j--]);
		488
		489	AvFILLp (av) = -1;
387	SvREFCNT_dec (sv);	490	SvREFCNT_dec (av);
388
389	SvREFCNT_dec (*svp);
390	}
391	}	491	}
392		492
		493	SvREFCNT_dec (AvARRAY (padlist)[0]);
		494
		495	AvFILLp (padlist) = -1;
393	SvREFCNT_dec ((SV*)padlist);	496	SvREFCNT_dec ((SV*)padlist);
394	}	497	}
395	}	498	}
396		499
397	static int	500	static int
398	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	501	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
399	{	502	{
400	AV *padlist;	503	AV *padlist;
401	AV *av = (AV *)mg->mg_obj;	504	AV *av = (AV *)mg->mg_obj;
		505
		506	/* perl manages to free our internal AV and _then_ call us */
		507	if (IN_DESTRUCT)
		508	return 0;
402		509
403	/* casting is fun. */	510	/* casting is fun. */
404	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	511	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
405	free_padlist (aTHX_ padlist);	512	free_padlist (aTHX_ padlist);
406		513
407	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	514	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
408		515
409	return 0;	516	return 0;
410	}	517	}
411
412	#define CORO_MAGIC_type_cv 26
413	#define CORO_MAGIC_type_state PERL_MAGIC_ext
414		518
415	static MGVTBL coro_cv_vtbl = {	519	static MGVTBL coro_cv_vtbl = {
416	0, 0, 0, 0,	520	0, 0, 0, 0,
417	coro_cv_free	521	coro_cv_free
418	};	522	};
419
420	#define CORO_MAGIC_NN(sv, type) \
421	(expect_true (SvMAGIC (sv)->mg_type == type) \
422	? SvMAGIC (sv) \
423	: mg_find (sv, type))
424
425	#define CORO_MAGIC(sv, type) \
426	(expect_true (SvMAGIC (sv)) \
427	? CORO_MAGIC_NN (sv, type) \
428	: 0)
429
430	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
431	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
432
433	INLINE struct coro *
434	SvSTATE_ (pTHX_ SV *coro)
435	{
436	HV *stash;
437	MAGIC *mg;
438
439	if (SvROK (coro))
440	coro = SvRV (coro);
441
442	if (expect_false (SvTYPE (coro) != SVt_PVHV))
443	croak ("Coro::State object required");
444
445	stash = SvSTASH (coro);
446	if (expect_false (stash != coro_stash && stash != coro_state_stash))
447	{
448	/* very slow, but rare, check */
449	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
450	croak ("Coro::State object required");
451	}
452
453	mg = CORO_MAGIC_state (coro);
454	return (struct coro *)mg->mg_ptr;
455	}
456
457	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
458
459	/* faster than SvSTATE, but expects a coroutine hv */
460	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
461	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
462		523
463	/* the next two functions merely cache the padlists */	524	/* the next two functions merely cache the padlists */
464	static void	525	static void
465	get_padlist (pTHX_ CV *cv)	526	get_padlist (pTHX_ CV *cv)
466	{	527	{
…		…
477	CV *cp = Perl_cv_clone (aTHX_ cv);	538	CV *cp = Perl_cv_clone (aTHX_ cv);
478	CvPADLIST (cv) = CvPADLIST (cp);	539	CvPADLIST (cv) = CvPADLIST (cp);
479	CvPADLIST (cp) = 0;	540	CvPADLIST (cp) = 0;
480	SvREFCNT_dec (cp);	541	SvREFCNT_dec (cp);
481	#else	542	#else
482	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	543	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
483	#endif	544	#endif
484	}	545	}
485	}	546	}
486		547
487	static void	548	static void
…		…
494	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	555	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
495		556
496	av = (AV *)mg->mg_obj;	557	av = (AV *)mg->mg_obj;
497		558
498	if (expect_false (AvFILLp (av) >= AvMAX (av)))	559	if (expect_false (AvFILLp (av) >= AvMAX (av)))
499	av_extend (av, AvMAX (av) + 1);	560	av_extend (av, AvFILLp (av) + 1);
500		561
501	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	562	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
502	}	563	}
503		564
504	/** load & save, init *******************************************************/	565	/** load & save, init *******************************************************/
		566
		567	/* swap sv heads, at least logically */
		568	static void
		569	swap_svs (pTHX_ Coro__State c)
		570	{
		571	int i;
		572
		573	for (i = 0; i <= AvFILLp (c->swap_sv); )
		574	{
		575	SV *a = AvARRAY (c->swap_sv)[i++];
		576	SV *b = AvARRAY (c->swap_sv)[i++];
		577
		578	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		579	SV tmp;
		580
		581	/* swap sv_any */
		582	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		583
		584	/* swap sv_flags */
		585	SvFLAGS (&tmp) = SvFLAGS (a);
		586	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		587	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		588
		589	#if PERL_VERSION_ATLEAST (5,10,0)
		590	/* perl 5.10 complicates this _quite_ a bit, but it also is
		591	* much faster, so no quarrels here. alternatively, we could
		592	* sv_upgrade to avoid this.
		593	*/
		594	{
		595	/* swap sv_u */
		596	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		597
		598	/* if SvANY points to the head, we need to adjust the pointers,
		599	* as the pointer for a still points to b, and maybe vice versa.
		600	*/
		601	#define svany_in_head(type) \
		602	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		603
		604	if (svany_in_head (SvTYPE (a)))
		605	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		606
		607	if (svany_in_head (SvTYPE (b)))
		608	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		609	}
		610	#endif
		611	}
		612	}
		613
		614	#define SWAP_SVS(coro) \
		615	if (expect_false ((coro)->swap_sv)) \
		616	swap_svs (aTHX_ (coro))
		617
		618	static void
		619	on_enterleave_call (pTHX_ SV *cb);
505		620
506	static void	621	static void
507	load_perl (pTHX_ Coro__State c)	622	load_perl (pTHX_ Coro__State c)
508	{	623	{
509	perl_slots *slot = c->slot;	624	perl_slots *slot = c->slot;
510	c->slot = 0;	625	c->slot = 0;
511		626
512	PL_mainstack = c->mainstack;	627	PL_mainstack = c->mainstack;
513		628
514	GvSV (PL_defgv) = slot->defsv;	629	GvSV (PL_defgv) = slot->defsv;
515	GvAV (PL_defgv) = slot->defav;	630	GvAV (PL_defgv) = slot->defav;
516	GvSV (PL_errgv) = slot->errsv;	631	GvSV (PL_errgv) = slot->errsv;
517	GvSV (irsgv) = slot->irsgv;	632	GvSV (irsgv) = slot->irsgv;
		633	GvHV (PL_hintgv) = slot->hinthv;
518		634
519	#define VAR(name,type) PL_ ## name = slot->name;	635	#define VAR(name,type) PL_ ## name = slot->name;
520	# include "state.h"	636	# include "state.h"
521	#undef VAR	637	#undef VAR
522		638
…		…
536	PUTBACK;	652	PUTBACK;
537	}	653	}
538		654
539	slf_frame = c->slf_frame;	655	slf_frame = c->slf_frame;
540	CORO_THROW = c->except;	656	CORO_THROW = c->except;
		657
		658	if (expect_false (enable_times))
		659	{
		660	if (expect_false (!times_valid))
		661	coro_times_update ();
		662
		663	coro_times_sub (c);
		664	}
		665
		666	if (expect_false (c->on_enter))
		667	{
		668	int i;
		669
		670	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		671	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		672	}
		673
		674	SWAP_SVS (c);
541	}	675	}
542		676
543	static void	677	static void
544	save_perl (pTHX_ Coro__State c)	678	save_perl (pTHX_ Coro__State c)
545	{	679	{
		680	SWAP_SVS (c);
		681
		682	if (expect_false (c->on_leave))
		683	{
		684	int i;
		685
		686	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		687	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		688	}
		689
		690	times_valid = 0;
		691
		692	if (expect_false (enable_times))
		693	{
		694	coro_times_update (); times_valid = 1;
		695	coro_times_add (c);
		696	}
		697
546	c->except = CORO_THROW;	698	c->except = CORO_THROW;
547	c->slf_frame = slf_frame;	699	c->slf_frame = slf_frame;
548		700
549	{	701	{
550	dSP;	702	dSP;
…		…
563	{	715	{
564	while (expect_true (cxix >= 0))	716	while (expect_true (cxix >= 0))
565	{	717	{
566	PERL_CONTEXT *cx = &ccstk[cxix--];	718	PERL_CONTEXT *cx = &ccstk[cxix--];
567		719
568	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	720	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
569	{	721	{
570	CV *cv = cx->blk_sub.cv;	722	CV *cv = cx->blk_sub.cv;
571		723
572	if (expect_true (CvDEPTH (cv)))	724	if (expect_true (CvDEPTH (cv)))
573	{	725	{
…		…
597	/* we manually unroll here, as usually 2 slots is enough */	749	/* we manually unroll here, as usually 2 slots is enough */
598	if (SLOT_COUNT >= 1) CXINC;	750	if (SLOT_COUNT >= 1) CXINC;
599	if (SLOT_COUNT >= 2) CXINC;	751	if (SLOT_COUNT >= 2) CXINC;
600	if (SLOT_COUNT >= 3) CXINC;	752	if (SLOT_COUNT >= 3) CXINC;
601	{	753	{
602	int i;	754	unsigned int i;
603	for (i = 3; i < SLOT_COUNT; ++i)	755	for (i = 3; i < SLOT_COUNT; ++i)
604	CXINC;	756	CXINC;
605	}	757	}
606	cxstack_ix -= SLOT_COUNT; /* undo allocation */	758	cxstack_ix -= SLOT_COUNT; /* undo allocation */
607		759
608	c->mainstack = PL_mainstack;	760	c->mainstack = PL_mainstack;
609		761
610	{	762	{
611	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	763	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
612		764
613	slot->defav = GvAV (PL_defgv);	765	slot->defav = GvAV (PL_defgv);
614	slot->defsv = DEFSV;	766	slot->defsv = DEFSV;
615	slot->errsv = ERRSV;	767	slot->errsv = ERRSV;
616	slot->irsgv = GvSV (irsgv);	768	slot->irsgv = GvSV (irsgv);
		769	slot->hinthv = GvHV (PL_hintgv);
617		770
618	#define VAR(name,type) slot->name = PL_ ## name;	771	#define VAR(name,type) slot->name = PL_ ## name;
619	# include "state.h"	772	# include "state.h"
620	#undef VAR	773	#undef VAR
621	}	774	}
…		…
748	#endif	901	#endif
749		902
750	/*	903	/*
751	* This overrides the default magic get method of %SIG elements.	904	* This overrides the default magic get method of %SIG elements.
752	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	905	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
753	* and instead of tryign to save and restore the hash elements, we just provide	906	* and instead of trying to save and restore the hash elements, we just provide
754	* readback here.	907	* readback here.
755	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
756	* not expecting this to actually change the hook. This is a potential problem
757	* when a schedule happens then, but we ignore this.
758	*/	908	*/
759	static int	909	static int
760	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	910	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
761	{	911	{
762	const char *s = MgPV_nolen_const (mg);	912	const char *s = MgPV_nolen_const (mg);
…		…
815	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	965	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
816		966
817	if (svp)	967	if (svp)
818	{	968	{
819	SV *old = *svp;	969	SV *old = *svp;
820	*svp = newSVsv (sv);	970	*svp = SvOK (sv) ? newSVsv (sv) : 0;
821	SvREFCNT_dec (old);	971	SvREFCNT_dec (old);
822	return 0;	972	return 0;
823	}	973	}
824	}	974	}
825		975
…		…
843	slf_check_repeat (pTHX_ struct CoroSLF *frame)	993	slf_check_repeat (pTHX_ struct CoroSLF *frame)
844	{	994	{
845	return 1;	995	return 1;
846	}	996	}
847		997
848	static UNOP coro_setup_op;	998	static UNOP init_perl_op;
849		999
850	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1000	static void NOINLINE /* noinline to keep it out of the transfer fast path */
851	coro_setup (pTHX_ struct coro *coro)	1001	init_perl (pTHX_ struct coro *coro)
852	{	1002	{
853	/*	1003	/*
854	* emulate part of the perl startup here.	1004	* emulate part of the perl startup here.
855	*/	1005	*/
856	coro_init_stacks (aTHX);	1006	coro_init_stacks (aTHX);
857		1007
858	PL_runops = RUNOPS_DEFAULT;	1008	PL_runops = RUNOPS_DEFAULT;
859	PL_curcop = &PL_compiling;	1009	PL_curcop = &PL_compiling;
860	PL_in_eval = EVAL_NULL;	1010	PL_in_eval = EVAL_NULL;
861	PL_comppad = 0;	1011	PL_comppad = 0;
		1012	PL_comppad_name = 0;
		1013	PL_comppad_name_fill = 0;
		1014	PL_comppad_name_floor = 0;
862	PL_curpm = 0;	1015	PL_curpm = 0;
863	PL_curpad = 0;	1016	PL_curpad = 0;
864	PL_localizing = 0;	1017	PL_localizing = 0;
865	PL_dirty = 0;
866	PL_restartop = 0;	1018	PL_restartop = 0;
867	#if PERL_VERSION_ATLEAST (5,10,0)	1019	#if PERL_VERSION_ATLEAST (5,10,0)
868	PL_parser = 0;	1020	PL_parser = 0;
869	#endif	1021	#endif
		1022	PL_hints = 0;
870		1023
871	/* recreate the die/warn hooks */	1024	/* recreate the die/warn hooks */
872	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1025	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
873	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1026	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
874		1027
875	GvSV (PL_defgv) = newSV (0);	1028	GvSV (PL_defgv) = newSV (0);
876	GvAV (PL_defgv) = coro->args; coro->args = 0;	1029	GvAV (PL_defgv) = coro->args; coro->args = 0;
877	GvSV (PL_errgv) = newSV (0);	1030	GvSV (PL_errgv) = newSV (0);
878	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1031	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		1032	GvHV (PL_hintgv) = 0;
879	PL_rs = newSVsv (GvSV (irsgv));	1033	PL_rs = newSVsv (GvSV (irsgv));
880	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1034	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
881		1035
882	{	1036	{
883	dSP;	1037	dSP;
…		…
900	*/	1054	*/
901	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1055	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
902	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1056	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
903		1057
904	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1058	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
905	coro_setup_op.op_next = PL_op;	1059	init_perl_op.op_next = PL_op;
906	coro_setup_op.op_type = OP_CUSTOM;	1060	init_perl_op.op_type = OP_ENTERSUB;
907	coro_setup_op.op_ppaddr = pp_slf;	1061	init_perl_op.op_ppaddr = pp_slf;
908	/* no flags etc. required, as an init function won't be called */	1062	/* no flags etc. required, as an init function won't be called */
909		1063
910	PL_op = (OP *)&coro_setup_op;	1064	PL_op = (OP *)&init_perl_op;
911		1065
912	/* copy throw, in case it was set before coro_setup */	1066	/* copy throw, in case it was set before init_perl */
913	CORO_THROW = coro->except;	1067	CORO_THROW = coro->except;
914	}
915		1068
		1069	SWAP_SVS (coro);
		1070
		1071	if (expect_false (enable_times))
		1072	{
		1073	coro_times_update ();
		1074	coro_times_sub (coro);
		1075	}
		1076	}
		1077
916	static void	1078	static void
917	coro_destruct (pTHX_ struct coro *coro)	1079	coro_unwind_stacks (pTHX)
918	{	1080	{
919	if (!IN_DESTRUCT)	1081	if (!IN_DESTRUCT)
920	{	1082	{
921	/* restore all saved variables and stuff */	1083	/* restore all saved variables and stuff */
922	LEAVE_SCOPE (0);	1084	LEAVE_SCOPE (0);
…		…
930	POPSTACK_TO (PL_mainstack);	1092	POPSTACK_TO (PL_mainstack);
931		1093
932	/* unwind main stack */	1094	/* unwind main stack */
933	dounwind (-1);	1095	dounwind (-1);
934	}	1096	}
		1097	}
935		1098
936	SvREFCNT_dec (GvSV (PL_defgv));	1099	static void
937	SvREFCNT_dec (GvAV (PL_defgv));	1100	destroy_perl (pTHX_ struct coro *coro)
938	SvREFCNT_dec (GvSV (PL_errgv));	1101	{
939	SvREFCNT_dec (PL_defoutgv);	1102	SV *svf [9];
940	SvREFCNT_dec (PL_rs);
941	SvREFCNT_dec (GvSV (irsgv));
942		1103
943	SvREFCNT_dec (PL_diehook);
944	SvREFCNT_dec (PL_warnhook);
945		1104	{
		1105	struct coro *current = SvSTATE_current;
		1106
		1107	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1108
		1109	save_perl (aTHX_ current);
		1110	load_perl (aTHX_ coro);
		1111
		1112	coro_unwind_stacks (aTHX);
		1113	coro_destruct_stacks (aTHX);
		1114
		1115	/* restore swapped sv's */
		1116	SWAP_SVS (coro);
		1117
		1118	// now save some sv's to be free'd later
		1119	svf [0] = GvSV (PL_defgv);
		1120	svf [1] = (SV *)GvAV (PL_defgv);
		1121	svf [2] = GvSV (PL_errgv);
		1122	svf [3] = (SV *)PL_defoutgv;
		1123	svf [4] = PL_rs;
		1124	svf [5] = GvSV (irsgv);
		1125	svf [6] = (SV *)GvHV (PL_hintgv);
		1126	svf [7] = PL_diehook;
		1127	svf [8] = PL_warnhook;
		1128	assert (9 == sizeof (svf) / sizeof (*svf));
		1129
		1130	load_perl (aTHX_ current);
		1131	}
		1132
		1133	{
		1134	unsigned int i;
		1135
		1136	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1137	SvREFCNT_dec (svf [i]);
		1138
946	SvREFCNT_dec (coro->saved_deffh);	1139	SvREFCNT_dec (coro->saved_deffh);
947	SvREFCNT_dec (coro->rouse_cb);	1140	SvREFCNT_dec (coro->rouse_cb);
948	SvREFCNT_dec (coro->invoke_cb);	1141	SvREFCNT_dec (coro->invoke_cb);
949	SvREFCNT_dec (coro->invoke_av);	1142	SvREFCNT_dec (coro->invoke_av);
950		1143	}
951	coro_destruct_stacks (aTHX);
952	}	1144	}
953		1145
954	INLINE void	1146	INLINE void
955	free_coro_mortal (pTHX)	1147	free_coro_mortal (pTHX)
956	{	1148	{
…		…
964	static int	1156	static int
965	runops_trace (pTHX)	1157	runops_trace (pTHX)
966	{	1158	{
967	COP *oldcop = 0;	1159	COP *oldcop = 0;
968	int oldcxix = -2;	1160	int oldcxix = -2;
969	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
970	coro_cctx *cctx = coro->cctx;
971		1161
972	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1162	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
973	{	1163	{
974	PERL_ASYNC_CHECK ();	1164	PERL_ASYNC_CHECK ();
975		1165
976	if (cctx->flags & CC_TRACE_ALL)	1166	if (cctx_current->flags & CC_TRACE_ALL)
977	{	1167	{
978	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1168	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
979	{	1169	{
980	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1170	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
981	SV **bot, **top;	1171	SV **bot, **top;
982	AV *av = newAV (); /* return values */	1172	AV *av = newAV (); /* return values */
983	SV **cb;	1173	SV **cb;
…		…
1020		1210
1021	if (PL_curcop != &PL_compiling)	1211	if (PL_curcop != &PL_compiling)
1022	{	1212	{
1023	SV **cb;	1213	SV **cb;
1024		1214
1025	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1215	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1026	{	1216	{
1027	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1217	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1028		1218
1029	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1219	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1030	{	1220	{
1031	runops_proc_t old_runops = PL_runops;
1032	dSP;	1221	dSP;
1033	GV *gv = CvGV (cx->blk_sub.cv);	1222	GV *gv = CvGV (cx->blk_sub.cv);
1034	SV *fullname = sv_2mortal (newSV (0));	1223	SV *fullname = sv_2mortal (newSV (0));
1035		1224
1036	if (isGV (gv))	1225	if (isGV (gv))
…		…
1054	}	1243	}
1055		1244
1056	oldcxix = cxstack_ix;	1245	oldcxix = cxstack_ix;
1057	}	1246	}
1058		1247
1059	if (cctx->flags & CC_TRACE_LINE)	1248	if (cctx_current->flags & CC_TRACE_LINE)
1060	{	1249	{
1061	dSP;	1250	dSP;
1062		1251
1063	PL_runops = RUNOPS_DEFAULT;	1252	PL_runops = RUNOPS_DEFAULT;
1064	ENTER;	1253	ENTER;
…		…
1083		1272
1084	TAINT_NOT;	1273	TAINT_NOT;
1085	return 0;	1274	return 0;
1086	}	1275	}
1087		1276
1088	static struct coro_cctx *cctx_ssl_cctx;
1089	static struct CoroSLF cctx_ssl_frame;	1277	static struct CoroSLF cctx_ssl_frame;
1090		1278
1091	static void	1279	static void
1092	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1280	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1093	{	1281	{
1094	ta->prev = (struct coro *)cctx_ssl_cctx;
1095	ta->next = 0;	1282	ta->prev = 0;
1096	}	1283	}
1097		1284
1098	static int	1285	static int
1099	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1286	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1100	{	1287	{
…		…
1103	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1290	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1104	}	1291	}
1105		1292
1106	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1293	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1107	static void NOINLINE	1294	static void NOINLINE
1108	cctx_prepare (pTHX_ coro_cctx *cctx)	1295	cctx_prepare (pTHX)
1109	{	1296	{
1110	PL_top_env = &PL_start_env;	1297	PL_top_env = &PL_start_env;
1111		1298
1112	if (cctx->flags & CC_TRACE)	1299	if (cctx_current->flags & CC_TRACE)
1113	PL_runops = runops_trace;	1300	PL_runops = runops_trace;
1114		1301
1115	/* we already must be executing an SLF op, there is no other valid way	1302	/* we already must be executing an SLF op, there is no other valid way
1116	* that can lead to creation of a new cctx */	1303	* that can lead to creation of a new cctx */
1117	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1304	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1118	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1305	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1119		1306
1120	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1307	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1121	cctx_ssl_cctx = cctx;
1122	cctx_ssl_frame = slf_frame;	1308	cctx_ssl_frame = slf_frame;
1123		1309
1124	slf_frame.prepare = slf_prepare_set_stacklevel;	1310	slf_frame.prepare = slf_prepare_set_stacklevel;
1125	slf_frame.check = slf_check_set_stacklevel;	1311	slf_frame.check = slf_check_set_stacklevel;
1126	}	1312	}
…		…
1149	/* normally we would need to skip the entersub here */	1335	/* normally we would need to skip the entersub here */
1150	/* not doing so will re-execute it, which is exactly what we want */	1336	/* not doing so will re-execute it, which is exactly what we want */
1151	/* PL_nop = PL_nop->op_next */	1337	/* PL_nop = PL_nop->op_next */
1152		1338
1153	/* inject a fake subroutine call to cctx_init */	1339	/* inject a fake subroutine call to cctx_init */
1154	cctx_prepare (aTHX_ (coro_cctx *)arg);	1340	cctx_prepare (aTHX);
1155		1341
1156	/* cctx_run is the alternative tail of transfer() */	1342	/* cctx_run is the alternative tail of transfer() */
1157	transfer_tail (aTHX);	1343	transfer_tail (aTHX);
1158		1344
1159	/* somebody or something will hit me for both perl_run and PL_restartop */	1345	/* somebody or something will hit me for both perl_run and PL_restartop */
1160	PL_restartop = PL_op;	1346	PL_restartop = PL_op;
1161	perl_run (PL_curinterp);	1347	perl_run (PL_curinterp);
1162	/*	1348	/*
1163	* Unfortunately, there is no way to get at the return values of the	1349	* Unfortunately, there is no way to get at the return values of the
1164	* coro body here, as perl_run destroys these	1350	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1351	* runtime errors here, as this is just a random interpreter, not a thread.
1165	*/	1352	*/
1166		1353
1167	/*	1354	/*
1168	* If perl-run returns we assume exit() was being called or the coro	1355	* If perl-run returns we assume exit() was being called or the coro
1169	* fell off the end, which seems to be the only valid (non-bug)	1356	* fell off the end, which seems to be the only valid (non-bug)
1170	* reason for perl_run to return. We try to exit by jumping to the	1357	* reason for perl_run to return. We try to exit by jumping to the
1171	* bootstrap-time "top" top_env, as we cannot restore the "main"	1358	* bootstrap-time "top" top_env, as we cannot restore the "main"
1172	* coroutine as Coro has no such concept	1359	* coroutine as Coro has no such concept.
		1360	* This actually isn't valid with the pthread backend, but OSes requiring
		1361	* that backend are too broken to do it in a standards-compliant way.
1173	*/	1362	*/
1174	PL_top_env = main_top_env;	1363	PL_top_env = main_top_env;
1175	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1364	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1176	}	1365	}
1177	}	1366	}
…		…
1254	cctx_destroy (coro_cctx *cctx)	1443	cctx_destroy (coro_cctx *cctx)
1255	{	1444	{
1256	if (!cctx)	1445	if (!cctx)
1257	return;	1446	return;
1258		1447
		1448	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1449
1259	--cctx_count;	1450	--cctx_count;
1260	coro_destroy (&cctx->cctx);	1451	coro_destroy (&cctx->cctx);
1261		1452
1262	/* coro_transfer creates new, empty cctx's */	1453	/* coro_transfer creates new, empty cctx's */
1263	if (cctx->sptr)	1454	if (cctx->sptr)
…		…
1326	/* TODO: throwing up here is considered harmful */	1517	/* TODO: throwing up here is considered harmful */
1327		1518
1328	if (expect_true (prev != next))	1519	if (expect_true (prev != next))
1329	{	1520	{
1330	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1521	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1331	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1522	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1332		1523
1333	if (expect_false (next->flags & CF_RUNNING))
1334	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1335
1336	if (expect_false (next->flags & CF_DESTROYED))	1524	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1337	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1525	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1338		1526
1339	#if !PERL_VERSION_ATLEAST (5,10,0)	1527	#if !PERL_VERSION_ATLEAST (5,10,0)
1340	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1528	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1341	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1529	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1342	#endif	1530	#endif
…		…
1348	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1536	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1349	{	1537	{
1350	dSTACKLEVEL;	1538	dSTACKLEVEL;
1351		1539
1352	/* sometimes transfer is only called to set idle_sp */	1540	/* sometimes transfer is only called to set idle_sp */
1353	if (expect_false (!next))	1541	if (expect_false (!prev))
1354	{	1542	{
1355	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1543	cctx_current->idle_sp = STACKLEVEL;
1356	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1544	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1357	}	1545	}
1358	else if (expect_true (prev != next))	1546	else if (expect_true (prev != next))
1359	{	1547	{
1360	coro_cctx *prev__cctx;	1548	coro_cctx *cctx_prev;
1361		1549
1362	if (expect_false (prev->flags & CF_NEW))	1550	if (expect_false (prev->flags & CF_NEW))
1363	{	1551	{
1364	/* create a new empty/source context */	1552	/* create a new empty/source context */
1365	prev->cctx = cctx_new_empty ();
1366	prev->flags &= ~CF_NEW;	1553	prev->flags &= ~CF_NEW;
1367	prev->flags |= CF_RUNNING;	1554	prev->flags |= CF_RUNNING;
1368	}	1555	}
1369		1556
1370	prev->flags &= ~CF_RUNNING;	1557	prev->flags &= ~CF_RUNNING;
…		…
1376	if (expect_false (next->flags & CF_NEW))	1563	if (expect_false (next->flags & CF_NEW))
1377	{	1564	{
1378	/* need to start coroutine */	1565	/* need to start coroutine */
1379	next->flags &= ~CF_NEW;	1566	next->flags &= ~CF_NEW;
1380	/* setup coroutine call */	1567	/* setup coroutine call */
1381	coro_setup (aTHX_ next);	1568	init_perl (aTHX_ next);
1382	}	1569	}
1383	else	1570	else
1384	load_perl (aTHX_ next);	1571	load_perl (aTHX_ next);
1385		1572
1386	prev__cctx = prev->cctx;
1387
1388	/* possibly untie and reuse the cctx */	1573	/* possibly untie and reuse the cctx */
1389	if (expect_true (	1574	if (expect_true (
1390	prev__cctx->idle_sp == STACKLEVEL	1575	cctx_current->idle_sp == STACKLEVEL
1391	&& !(prev__cctx->flags & CC_TRACE)	1576	&& !(cctx_current->flags & CC_TRACE)
1392	&& !force_cctx	1577	&& !force_cctx
1393	))	1578	))
1394	{	1579	{
1395	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1580	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1581	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397		1582
1398	prev->cctx = 0;
1399
1400	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1583	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1401	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1584	/* without this the next cctx_get might destroy the running cctx while still in use */
1402	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1585	if (expect_false (CCTX_EXPIRED (cctx_current)))
1403	if (!next->cctx)	1586	if (expect_true (!next->cctx))
1404	next->cctx = cctx_get (aTHX);	1587	next->cctx = cctx_get (aTHX);
1405		1588
1406	cctx_put (prev__cctx);	1589	cctx_put (cctx_current);
1407	}	1590	}
		1591	else
		1592	prev->cctx = cctx_current;
1408		1593
1409	++next->usecount;	1594	++next->usecount;
1410		1595
1411	if (expect_true (!next->cctx))	1596	cctx_prev = cctx_current;
1412	next->cctx = cctx_get (aTHX);	1597	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1413		1598
1414	if (expect_false (prev__cctx != next->cctx))	1599	next->cctx = 0;
		1600
		1601	if (expect_false (cctx_prev != cctx_current))
1415	{	1602	{
1416	prev__cctx->top_env = PL_top_env;	1603	cctx_prev->top_env = PL_top_env;
1417	PL_top_env = next->cctx->top_env;	1604	PL_top_env = cctx_current->top_env;
1418	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1605	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1419	}	1606	}
1420		1607
1421	transfer_tail (aTHX);	1608	transfer_tail (aTHX);
1422	}	1609	}
1423	}	1610	}
…		…
1431	coro_state_destroy (pTHX_ struct coro *coro)	1618	coro_state_destroy (pTHX_ struct coro *coro)
1432	{	1619	{
1433	if (coro->flags & CF_DESTROYED)	1620	if (coro->flags & CF_DESTROYED)
1434	return 0;	1621	return 0;
1435		1622
1436	if (coro->on_destroy)	1623	if (coro->on_destroy && !PL_dirty)
1437	coro->on_destroy (aTHX_ coro);	1624	coro->on_destroy (aTHX_ coro);
1438		1625
1439	coro->flags |= CF_DESTROYED;	1626	coro->flags |= CF_DESTROYED;
1440		1627
1441	if (coro->flags & CF_READY)	1628	if (coro->flags & CF_READY)
…		…
1445	--coro_nready;	1632	--coro_nready;
1446	}	1633	}
1447	else	1634	else
1448	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1635	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1449		1636
1450	if (coro->mainstack && coro->mainstack != main_mainstack)	1637	if (coro->mainstack
1451	{	1638	&& coro->mainstack != main_mainstack
1452	struct coro temp;	1639	&& coro->slot
1453		1640	&& !PL_dirty)
1454	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1455
1456	save_perl (aTHX_ &temp);
1457	load_perl (aTHX_ coro);	1641	destroy_perl (aTHX_ coro);
1458		1642
1459	coro_destruct (aTHX_ coro);	1643	if (coro->next) coro->next->prev = coro->prev;
1460		1644	if (coro->prev) coro->prev->next = coro->next;
1461	load_perl (aTHX_ &temp);	1645	if (coro == coro_first) coro_first = coro->next;
1462
1463	coro->slot = 0;
1464	}
1465		1646
1466	cctx_destroy (coro->cctx);	1647	cctx_destroy (coro->cctx);
1467	SvREFCNT_dec (coro->startcv);	1648	SvREFCNT_dec (coro->startcv);
1468	SvREFCNT_dec (coro->args);	1649	SvREFCNT_dec (coro->args);
		1650	SvREFCNT_dec (coro->swap_sv);
1469	SvREFCNT_dec (CORO_THROW);	1651	SvREFCNT_dec (CORO_THROW);
1470
1471	if (coro->next) coro->next->prev = coro->prev;
1472	if (coro->prev) coro->prev->next = coro->next;
1473	if (coro == coro_first) coro_first = coro->next;
1474		1652
1475	return 1;	1653	return 1;
1476	}	1654	}
1477		1655
1478	static int	1656	static int
…		…
1528		1706
1529	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1707	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1530	TRANSFER (ta, 1);	1708	TRANSFER (ta, 1);
1531	}	1709	}
1532		1710
1533	/*****************************************************************************/
1534	/* gensub: simple closure generation utility */
1535
1536	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1537
1538	/* create a closure from XS, returns a code reference */
1539	/* the arg can be accessed via GENSUB_ARG from the callback */
1540	/* the callback must use dXSARGS/XSRETURN */
1541	static SV *
1542	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1543	{
1544	CV *cv = (CV *)newSV (0);
1545
1546	sv_upgrade ((SV *)cv, SVt_PVCV);
1547
1548	CvANON_on (cv);
1549	CvISXSUB_on (cv);
1550	CvXSUB (cv) = xsub;
1551	GENSUB_ARG = arg;
1552
1553	return newRV_noinc ((SV *)cv);
1554	}
1555
1556	/** Coro ********************************************************************/	1711	/** Coro ********************************************************************/
1557		1712
1558	INLINE void	1713	INLINE void
1559	coro_enq (pTHX_ struct coro *coro)	1714	coro_enq (pTHX_ struct coro *coro)
1560	{	1715	{
1561	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1716	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1562	}
1563		1717
1564	INLINE SV *	1718	SvREFCNT_inc_NN (coro->hv);
		1719
		1720	coro->next_ready = 0;
		1721	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1722	ready [1] = coro;
		1723	}
		1724
		1725	INLINE struct coro *
1565	coro_deq (pTHX)	1726	coro_deq (pTHX)
1566	{	1727	{
1567	int prio;	1728	int prio;
1568		1729
1569	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1730	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1570	if (AvFILLp (coro_ready [prio]) >= 0)	1731	{
1571	return av_shift (coro_ready [prio]);	1732	struct coro **ready = coro_ready [prio];
		1733
		1734	if (ready [0])
		1735	{
		1736	struct coro *coro = ready [0];
		1737	ready [0] = coro->next_ready;
		1738	return coro;
		1739	}
		1740	}
1572		1741
1573	return 0;	1742	return 0;
		1743	}
		1744
		1745	static void
		1746	invoke_sv_ready_hook_helper (void)
		1747	{
		1748	dTHX;
		1749	dSP;
		1750
		1751	ENTER;
		1752	SAVETMPS;
		1753
		1754	PUSHMARK (SP);
		1755	PUTBACK;
		1756	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1757
		1758	FREETMPS;
		1759	LEAVE;
1574	}	1760	}
1575		1761
1576	static int	1762	static int
1577	api_ready (pTHX_ SV *coro_sv)	1763	api_ready (pTHX_ SV *coro_sv)
1578	{	1764	{
1579	struct coro *coro;
1580	SV *sv_hook;
1581	void (*xs_hook)(void);
1582
1583	if (SvROK (coro_sv))
1584	coro_sv = SvRV (coro_sv);
1585
1586	coro = SvSTATE (coro_sv);	1765	struct coro *coro = SvSTATE (coro_sv);
1587		1766
1588	if (coro->flags & CF_READY)	1767	if (coro->flags & CF_READY)
1589	return 0;	1768	return 0;
1590		1769
1591	coro->flags |= CF_READY;	1770	coro->flags |= CF_READY;
1592		1771
1593	sv_hook = coro_nready ? 0 : coro_readyhook;
1594	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1595
1596	coro_enq (aTHX_ coro);	1772	coro_enq (aTHX_ coro);
1597	++coro_nready;
1598		1773
1599	if (sv_hook)	1774	if (!coro_nready++)
1600	{	1775	if (coroapi.readyhook)
1601	dSP;	1776	coroapi.readyhook ();
1602
1603	ENTER;
1604	SAVETMPS;
1605
1606	PUSHMARK (SP);
1607	PUTBACK;
1608	call_sv (sv_hook, G_VOID | G_DISCARD);
1609
1610	FREETMPS;
1611	LEAVE;
1612	}
1613
1614	if (xs_hook)
1615	xs_hook ();
1616		1777
1617	return 1;	1778	return 1;
1618	}	1779	}
1619		1780
1620	static int	1781	static int
…		…
1643	static void	1804	static void
1644	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1805	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1645	{	1806	{
1646	for (;;)	1807	for (;;)
1647	{	1808	{
1648	SV *next_sv = coro_deq (aTHX);	1809	struct coro *next = coro_deq (aTHX);
1649		1810
1650	if (expect_true (next_sv))	1811	if (expect_true (next))
1651	{	1812	{
1652	struct coro *next = SvSTATE_hv (next_sv);
1653
1654	/* cannot transfer to destroyed coros, skip and look for next */	1813	/* cannot transfer to destroyed coros, skip and look for next */
1655	if (expect_false (next->flags & CF_DESTROYED))	1814	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1656	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1815	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1657	else	1816	else
1658	{	1817	{
1659	next->flags &= ~CF_READY;	1818	next->flags &= ~CF_READY;
1660	--coro_nready;	1819	--coro_nready;
1661		1820
1662	return prepare_schedule_to (aTHX_ ta, next);	1821	prepare_schedule_to (aTHX_ ta, next);
		1822	break;
1663	}	1823	}
1664	}	1824	}
1665	else	1825	else
1666	{	1826	{
1667	/* nothing to schedule: call the idle handler */	1827	/* nothing to schedule: call the idle handler */
		1828	if (SvROK (sv_idle)
		1829	&& SvOBJECT (SvRV (sv_idle)))
		1830	{
		1831	if (SvRV (sv_idle) == SvRV (coro_current))
		1832	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1833
		1834	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1835	api_ready (aTHX_ SvRV (sv_idle));
		1836	--coro_nready;
		1837	}
		1838	else
		1839	{
		1840	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1668	dSP;	1841	dSP;
1669		1842
1670	ENTER;	1843	ENTER;
1671	SAVETMPS;	1844	SAVETMPS;
1672		1845
1673	PUSHMARK (SP);	1846	PUSHMARK (SP);
1674	PUTBACK;	1847	PUTBACK;
1675	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1848	call_sv (sv_idle, G_VOID | G_DISCARD);
1676		1849
1677	FREETMPS;	1850	FREETMPS;
1678	LEAVE;	1851	LEAVE;
		1852	}
1679	}	1853	}
1680	}	1854	}
1681	}	1855	}
1682		1856
1683	INLINE void	1857	INLINE void
…		…
1754	static void	1928	static void
1755	api_trace (pTHX_ SV *coro_sv, int flags)	1929	api_trace (pTHX_ SV *coro_sv, int flags)
1756	{	1930	{
1757	struct coro *coro = SvSTATE (coro_sv);	1931	struct coro *coro = SvSTATE (coro_sv);
1758		1932
		1933	if (coro->flags & CF_RUNNING)
		1934	croak ("cannot enable tracing on a running coroutine, caught");
		1935
1759	if (flags & CC_TRACE)	1936	if (flags & CC_TRACE)
1760	{	1937	{
1761	if (!coro->cctx)	1938	if (!coro->cctx)
1762	coro->cctx = cctx_new_run ();	1939	coro->cctx = cctx_new_run ();
1763	else if (!(coro->cctx->flags & CC_TRACE))	1940	else if (!(coro->cctx->flags & CC_TRACE))
1764	croak ("cannot enable tracing on coroutine with custom stack,");	1941	croak ("cannot enable tracing on coroutine with custom stack, caught");
1765		1942
1766	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1943	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1767	}	1944	}
1768	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1945	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1769	{	1946	{
…		…
1814	{	1991	{
1815	int i;	1992	int i;
1816	HV *hv = (HV *)SvRV (coro_current);	1993	HV *hv = (HV *)SvRV (coro_current);
1817	AV *av = newAV ();	1994	AV *av = newAV ();
1818		1995
		1996	/* items are actually not so common, so optimise for this case */
		1997	if (items)
		1998	{
1819	av_extend (av, items - 1);	1999	av_extend (av, items - 1);
		2000
1820	for (i = 0; i < items; ++i)	2001	for (i = 0; i < items; ++i)
1821	av_push (av, SvREFCNT_inc_NN (arg [i]));	2002	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2003	}
1822		2004
1823	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2005	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1824		2006
1825	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2007	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1826	api_ready (aTHX_ sv_manager);	2008	api_ready (aTHX_ sv_manager);
1827		2009
1828	frame->prepare = prepare_schedule;	2010	frame->prepare = prepare_schedule;
1829	frame->check = slf_check_repeat;	2011	frame->check = slf_check_repeat;
		2012
		2013	/* as a minor optimisation, we could unwind all stacks here */
		2014	/* but that puts extra pressure on pp_slf, and is not worth much */
		2015	/*coro_unwind_stacks (aTHX);*/
1830	}	2016	}
1831		2017
1832	/*****************************************************************************/	2018	/*****************************************************************************/
1833	/* async pool handler */	2019	/* async pool handler */
1834		2020
…		…
1912		2098
1913	static void	2099	static void
1914	coro_rouse_callback (pTHX_ CV *cv)	2100	coro_rouse_callback (pTHX_ CV *cv)
1915	{	2101	{
1916	dXSARGS;	2102	dXSARGS;
1917	SV *data = (SV *)GENSUB_ARG;	2103	SV *data = (SV *)S_GENSUB_ARG;
1918		2104
1919	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2105	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1920	{	2106	{
1921	/* first call, set args */	2107	/* first call, set args */
		2108	SV *coro = SvRV (data);
1922	AV *av = newAV ();	2109	AV *av = newAV ();
1923	SV *coro = SvRV (data);
1924		2110
1925	SvRV_set (data, (SV *)av);	2111	SvRV_set (data, (SV *)av);
1926	api_ready (aTHX_ coro);
1927	SvREFCNT_dec (coro);
1928		2112
1929	/* better take a full copy of the arguments */	2113	/* better take a full copy of the arguments */
1930	while (items--)	2114	while (items--)
1931	av_store (av, items, newSVsv (ST (items)));	2115	av_store (av, items, newSVsv (ST (items)));
		2116
		2117	api_ready (aTHX_ coro);
		2118	SvREFCNT_dec (coro);
1932	}	2119	}
1933		2120
1934	XSRETURN_EMPTY;	2121	XSRETURN_EMPTY;
1935	}	2122	}
1936		2123
…		…
1953		2140
1954	EXTEND (SP, AvFILLp (av) + 1);	2141	EXTEND (SP, AvFILLp (av) + 1);
1955	for (i = 0; i <= AvFILLp (av); ++i)	2142	for (i = 0; i <= AvFILLp (av); ++i)
1956	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2143	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1957		2144
1958	/* we have stolen the elements, so ste length to zero and free */	2145	/* we have stolen the elements, so set length to zero and free */
1959	AvFILLp (av) = -1;	2146	AvFILLp (av) = -1;
1960	av_undef (av);	2147	av_undef (av);
1961		2148
1962	PUTBACK;	2149	PUTBACK;
1963	}	2150	}
…		…
1987	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2174	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1988	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2175	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1989	croak ("Coro::rouse_wait called with illegal callback argument,");	2176	croak ("Coro::rouse_wait called with illegal callback argument,");
1990		2177
1991	{	2178	{
1992	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2179	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1993	SV *data = (SV *)GENSUB_ARG;	2180	SV *data = (SV *)S_GENSUB_ARG;
1994		2181
1995	frame->data = (void *)data;	2182	frame->data = (void *)data;
1996	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2183	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1997	frame->check = slf_check_rouse_wait;	2184	frame->check = slf_check_rouse_wait;
1998	}	2185	}
…		…
2002	coro_new_rouse_cb (pTHX)	2189	coro_new_rouse_cb (pTHX)
2003	{	2190	{
2004	HV *hv = (HV *)SvRV (coro_current);	2191	HV *hv = (HV *)SvRV (coro_current);
2005	struct coro *coro = SvSTATE_hv (hv);	2192	struct coro *coro = SvSTATE_hv (hv);
2006	SV *data = newRV_inc ((SV *)hv);	2193	SV *data = newRV_inc ((SV *)hv);
2007	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2194	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2008		2195
2009	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2196	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2010	SvREFCNT_dec (data); /* magicext increases the refcount */	2197	SvREFCNT_dec (data); /* magicext increases the refcount */
2011		2198
2012	SvREFCNT_dec (coro->rouse_cb);	2199	SvREFCNT_dec (coro->rouse_cb);
…		…
2237	if (PL_op->op_flags & OPf_STACKED)	2424	if (PL_op->op_flags & OPf_STACKED)
2238	{	2425	{
2239	if (items > slf_arga)	2426	if (items > slf_arga)
2240	{	2427	{
2241	slf_arga = items;	2428	slf_arga = items;
2242	free (slf_argv);	2429	Safefree (slf_argv);
2243	slf_argv = malloc (slf_arga * sizeof (SV *));	2430	New (0, slf_argv, slf_arga, SV *);
2244	}	2431	}
2245		2432
2246	slf_argc = items;	2433	slf_argc = items;
2247		2434
2248	for (i = 0; i < items; ++i)	2435	for (i = 0; i < items; ++i)
…		…
2250	}	2437	}
2251	else	2438	else
2252	slf_argc = 0;	2439	slf_argc = 0;
2253		2440
2254	PL_op->op_ppaddr = pp_slf;	2441	PL_op->op_ppaddr = pp_slf;
2255	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2442	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2256		2443
2257	PL_op = (OP *)&slf_restore;	2444	PL_op = (OP *)&slf_restore;
		2445	}
		2446
		2447	/*****************************************************************************/
		2448	/* dynamic wind */
		2449
		2450	static void
		2451	on_enterleave_call (pTHX_ SV *cb)
		2452	{
		2453	dSP;
		2454
		2455	PUSHSTACK;
		2456
		2457	PUSHMARK (SP);
		2458	PUTBACK;
		2459	call_sv (cb, G_VOID | G_DISCARD);
		2460	SPAGAIN;
		2461
		2462	POPSTACK;
		2463	}
		2464
		2465	static SV *
		2466	coro_avp_pop_and_free (pTHX_ AV **avp)
		2467	{
		2468	AV *av = *avp;
		2469	SV *res = av_pop (av);
		2470
		2471	if (AvFILLp (av) < 0)
		2472	{
		2473	*avp = 0;
		2474	SvREFCNT_dec (av);
		2475	}
		2476
		2477	return res;
		2478	}
		2479
		2480	static void
		2481	coro_pop_on_enter (pTHX_ void *coro)
		2482	{
		2483	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2484	SvREFCNT_dec (cb);
		2485	}
		2486
		2487	static void
		2488	coro_pop_on_leave (pTHX_ void *coro)
		2489	{
		2490	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2491	on_enterleave_call (aTHX_ sv_2mortal (cb));
2258	}	2492	}
2259		2493
2260	/*****************************************************************************/	2494	/*****************************************************************************/
2261	/* PerlIO::cede */	2495	/* PerlIO::cede */
2262		2496
…		…
2336	/* Coro::Semaphore & Coro::Signal */	2570	/* Coro::Semaphore & Coro::Signal */
2337		2571
2338	static SV *	2572	static SV *
2339	coro_waitarray_new (pTHX_ int count)	2573	coro_waitarray_new (pTHX_ int count)
2340	{	2574	{
2341	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2575	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2342	AV *av = newAV ();	2576	AV *av = newAV ();
2343	SV **ary;	2577	SV **ary;
2344		2578
2345	/* unfortunately, building manually saves memory */	2579	/* unfortunately, building manually saves memory */
2346	Newx (ary, 2, SV *);	2580	Newx (ary, 2, SV *);
2347	AvALLOC (av) = ary;	2581	AvALLOC (av) = ary;
		2582	#if PERL_VERSION_ATLEAST (5,10,0)
2348	/*AvARRAY (av) = ary;*/	2583	AvARRAY (av) = ary;
		2584	#else
2349	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2585	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2586	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2587	SvPVX ((SV *)av) = (char *)ary;
		2588	#endif
2350	AvMAX (av) = 1;	2589	AvMAX (av) = 1;
2351	AvFILLp (av) = 0;	2590	AvFILLp (av) = 0;
2352	ary [0] = newSViv (count);	2591	ary [0] = newSViv (count);
2353		2592
2354	return newRV_noinc ((SV *)av);	2593	return newRV_noinc ((SV *)av);
…		…
2483	{	2722	{
2484	if (items >= 2)	2723	if (items >= 2)
2485	{	2724	{
2486	/* callback form */	2725	/* callback form */
2487	AV *av = (AV *)SvRV (arg [0]);	2726	AV *av = (AV *)SvRV (arg [0]);
2488	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2727	SV *cb_cv = s_get_cv_croak (arg [1]);
2489		2728
2490	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2729	av_push (av, SvREFCNT_inc_NN (cb_cv));
2491		2730
2492	if (SvIVX (AvARRAY (av)[0]) > 0)	2731	if (SvIVX (AvARRAY (av)[0]) > 0)
2493	coro_semaphore_adjust (aTHX_ av, 0);	2732	coro_semaphore_adjust (aTHX_ av, 0);
2494		2733
2495	frame->prepare = prepare_nop;	2734	frame->prepare = prepare_nop;
…		…
2519	AvARRAY (av)[0] = AvARRAY (av)[1];	2758	AvARRAY (av)[0] = AvARRAY (av)[1];
2520	AvARRAY (av)[1] = cb;	2759	AvARRAY (av)[1] = cb;
2521		2760
2522	cb = av_shift (av);	2761	cb = av_shift (av);
2523		2762
		2763	if (SvTYPE (cb) == SVt_PVCV)
		2764	{
		2765	dSP;
		2766	PUSHMARK (SP);
		2767	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2768	PUTBACK;
		2769	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2770	}
		2771	else
		2772	{
2524	api_ready (aTHX_ cb);	2773	api_ready (aTHX_ cb);
2525	sv_setiv (cb, 0); /* signal waiter */	2774	sv_setiv (cb, 0); /* signal waiter */
		2775	}
		2776
2526	SvREFCNT_dec (cb);	2777	SvREFCNT_dec (cb);
2527		2778
2528	--count;	2779	--count;
2529	}	2780	}
2530	}	2781	}
…		…
2539	static void	2790	static void
2540	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2791	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2541	{	2792	{
2542	AV *av = (AV *)SvRV (arg [0]);	2793	AV *av = (AV *)SvRV (arg [0]);
2543		2794
		2795	if (items >= 2)
		2796	{
		2797	SV *cb_cv = s_get_cv_croak (arg [1]);
		2798	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2799
2544	if (SvIVX (AvARRAY (av)[0]))	2800	if (SvIVX (AvARRAY (av)[0]))
		2801	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
		2802
		2803	frame->prepare = prepare_nop;
		2804	frame->check = slf_check_nop;
		2805	}
		2806	else if (SvIVX (AvARRAY (av)[0]))
2545	{	2807	{
2546	SvIVX (AvARRAY (av)[0]) = 0;	2808	SvIVX (AvARRAY (av)[0]) = 0;
2547	frame->prepare = prepare_nop;	2809	frame->prepare = prepare_nop;
2548	frame->check = slf_check_nop;	2810	frame->check = slf_check_nop;
2549	}	2811	}
2550	else	2812	else
2551	{	2813	{
2552	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2814	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2553		2815
2554	av_push (av, waiter);	2816	av_push (av, waiter);
2555		2817
2556	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2818	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2557	frame->prepare = prepare_schedule;	2819	frame->prepare = prepare_schedule;
…		…
2575		2837
2576	static void	2838	static void
2577	coro_aio_callback (pTHX_ CV *cv)	2839	coro_aio_callback (pTHX_ CV *cv)
2578	{	2840	{
2579	dXSARGS;	2841	dXSARGS;
2580	AV *state = (AV *)GENSUB_ARG;	2842	AV *state = (AV *)S_GENSUB_ARG;
2581	SV *coro = av_pop (state);	2843	SV *coro = av_pop (state);
2582	SV *data_sv = newSV (sizeof (struct io_state));	2844	SV *data_sv = newSV (sizeof (struct io_state));
2583		2845
2584	av_extend (state, items - 1);	2846	av_extend (state, items - 1);
2585		2847
…		…
2699		2961
2700	for (i = 0; i < items; ++i)	2962	for (i = 0; i < items; ++i)
2701	PUSHs (arg [i]);	2963	PUSHs (arg [i]);
2702		2964
2703	/* now push the callback closure */	2965	/* now push the callback closure */
2704	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2966	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2705		2967
2706	/* now call the AIO function - we assume our request is uncancelable */	2968	/* now call the AIO function - we assume our request is uncancelable */
2707	PUTBACK;	2969	PUTBACK;
2708	call_sv ((SV *)req, G_VOID | G_DISCARD);	2970	call_sv ((SV *)req, G_VOID | G_DISCARD);
2709	}	2971	}
2710		2972
2711	/* now that the requets is going, we loop toll we have a result */	2973	/* now that the request is going, we loop till we have a result */
2712	frame->data = (void *)state;	2974	frame->data = (void *)state;
2713	frame->prepare = prepare_schedule;	2975	frame->prepare = prepare_schedule;
2714	frame->check = slf_check_aio_req;	2976	frame->check = slf_check_aio_req;
2715	}	2977	}
2716		2978
…		…
2723		2985
2724	XSRETURN_EMPTY;	2986	XSRETURN_EMPTY;
2725	}	2987	}
2726		2988
2727	/*****************************************************************************/	2989	/*****************************************************************************/
		2990
		2991	#if CORO_CLONE
		2992	# include "clone.c"
		2993	#endif
		2994
		2995	/*****************************************************************************/
		2996
		2997	static SV *
		2998	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2999	{
		3000	SV *coro_sv;
		3001	struct coro *coro;
		3002	MAGIC *mg;
		3003	HV *hv;
		3004	SV *cb;
		3005	int i;
		3006
		3007	if (argc > 0)
		3008	{
		3009	cb = s_get_cv_croak (argv [0]);
		3010
		3011	if (!is_coro)
		3012	{
		3013	if (CvISXSUB (cb))
		3014	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3015
		3016	if (!CvROOT (cb))
		3017	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3018	}
		3019	}
		3020
		3021	Newz (0, coro, 1, struct coro);
		3022	coro->args = newAV ();
		3023	coro->flags = CF_NEW;
		3024
		3025	if (coro_first) coro_first->prev = coro;
		3026	coro->next = coro_first;
		3027	coro_first = coro;
		3028
		3029	coro->hv = hv = newHV ();
		3030	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3031	mg->mg_flags |= MGf_DUP;
		3032	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3033
		3034	if (argc > 0)
		3035	{
		3036	av_extend (coro->args, argc + is_coro - 1);
		3037
		3038	if (is_coro)
		3039	{
		3040	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3041	cb = (SV *)cv_coro_run;
		3042	}
		3043
		3044	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3045
		3046	for (i = 1; i < argc; i++)
		3047	av_push (coro->args, newSVsv (argv [i]));
		3048	}
		3049
		3050	return coro_sv;
		3051	}
2728		3052
2729	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3053	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2730		3054
2731	PROTOTYPES: DISABLE	3055	PROTOTYPES: DISABLE
2732		3056
…		…
2737	coro_thx = PERL_GET_CONTEXT;	3061	coro_thx = PERL_GET_CONTEXT;
2738	# endif	3062	# endif
2739	#endif	3063	#endif
2740	BOOT_PAGESIZE;	3064	BOOT_PAGESIZE;
2741		3065
		3066	cctx_current = cctx_new_empty ();
		3067
2742	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	3068	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2743	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	3069	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2744		3070
2745	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	3071	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2746	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	3072	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2765		3091
2766	{	3092	{
2767	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	3093	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2768		3094
2769	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	3095	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2770	hv_store_ent (PL_custom_op_names, slf,	3096	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2771	newSVpv ("coro_slf", 0), 0);
2772		3097
2773	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	3098	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2774	hv_store_ent (PL_custom_op_descs, slf,	3099	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2775	newSVpv ("coro schedule like function", 0), 0);
2776	}	3100	}
2777		3101
2778	coroapi.ver = CORO_API_VERSION;	3102	coroapi.ver = CORO_API_VERSION;
2779	coroapi.rev = CORO_API_REVISION;	3103	coroapi.rev = CORO_API_REVISION;
2780		3104
…		…
2792		3116
2793	if (!svp) croak ("Time::HiRes is required");	3117	if (!svp) croak ("Time::HiRes is required");
2794	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3118	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2795		3119
2796	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3120	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3121
		3122	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3123	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2797	}	3124	}
2798		3125
2799	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3126	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2800	}	3127	}
2801		3128
2802	SV *	3129	SV *
2803	new (char *klass, ...)	3130	new (SV *klass, ...)
2804	ALIAS:	3131	ALIAS:
2805	Coro::new = 1	3132	Coro::new = 1
2806	CODE:	3133	CODE:
2807	{	3134	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2808	struct coro *coro;	3135	OUTPUT:
2809	MAGIC *mg;
2810	HV *hv;
2811	CV *cb;
2812	int i;
2813
2814	if (items > 1)
2815	{
2816	cb = coro_sv_2cv (aTHX_ ST (1));
2817
2818	if (!ix)
2819	{
2820	if (CvISXSUB (cb))
2821	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2822
2823	if (!CvROOT (cb))
2824	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2825	}
2826	}
2827
2828	Newz (0, coro, 1, struct coro);
2829	coro->args = newAV ();
2830	coro->flags = CF_NEW;
2831
2832	if (coro_first) coro_first->prev = coro;
2833	coro->next = coro_first;
2834	coro_first = coro;
2835
2836	coro->hv = hv = newHV ();
2837	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2838	mg->mg_flags |= MGf_DUP;
2839	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2840
2841	if (items > 1)
2842	{
2843	av_extend (coro->args, items - 1 + ix - 1);
2844
2845	if (ix)
2846	{
2847	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2848	cb = cv_coro_run;
2849	}
2850
2851	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2852
2853	for (i = 2; i < items; i++)
2854	av_push (coro->args, newSVsv (ST (i)));
2855	}
2856	}
2857	OUTPUT:
2858	RETVAL	3136	RETVAL
2859		3137
2860	void	3138	void
2861	transfer (...)	3139	transfer (...)
2862	PROTOTYPE: $$	3140	PROTOTYPE: $$
…		…
2873	void	3151	void
2874	_exit (int code)	3152	_exit (int code)
2875	PROTOTYPE: $	3153	PROTOTYPE: $
2876	CODE:	3154	CODE:
2877	_exit (code);	3155	_exit (code);
		3156
		3157	SV *
		3158	clone (Coro::State coro)
		3159	CODE:
		3160	{
		3161	#if CORO_CLONE
		3162	struct coro *ncoro = coro_clone (aTHX_ coro);
		3163	MAGIC *mg;
		3164	/* TODO: too much duplication */
		3165	ncoro->hv = newHV ();
		3166	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		3167	mg->mg_flags |= MGf_DUP;
		3168	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3169	#else
		3170	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3171	#endif
		3172	}
		3173	OUTPUT:
		3174	RETVAL
2878		3175
2879	int	3176	int
2880	cctx_stacksize (int new_stacksize = 0)	3177	cctx_stacksize (int new_stacksize = 0)
2881	PROTOTYPE: ;$	3178	PROTOTYPE: ;$
2882	CODE:	3179	CODE:
…		…
2932	eval = 1	3229	eval = 1
2933	CODE:	3230	CODE:
2934	{	3231	{
2935	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3232	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2936	{	3233	{
2937	struct coro temp;	3234	struct coro *current = SvSTATE_current;
2938		3235
2939	if (!(coro->flags & CF_RUNNING))	3236	if (current != coro)
2940	{	3237	{
2941	PUTBACK;	3238	PUTBACK;
2942	save_perl (aTHX_ &temp);	3239	save_perl (aTHX_ current);
2943	load_perl (aTHX_ coro);	3240	load_perl (aTHX_ coro);
		3241	SPAGAIN;
2944	}	3242	}
2945		3243
2946	{
2947	dSP;
2948	ENTER;
2949	SAVETMPS;
2950	PUTBACK;
2951	PUSHSTACK;	3244	PUSHSTACK;
		3245
2952	PUSHMARK (SP);	3246	PUSHMARK (SP);
		3247	PUTBACK;
2953		3248
2954	if (ix)	3249	if (ix)
2955	eval_sv (coderef, 0);	3250	eval_sv (coderef, 0);
2956	else	3251	else
2957	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3252	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2958		3253
2959	POPSTACK;	3254	POPSTACK;
2960	SPAGAIN;	3255	SPAGAIN;
2961	FREETMPS;
2962	LEAVE;
2963	PUTBACK;
2964	}
2965		3256
2966	if (!(coro->flags & CF_RUNNING))	3257	if (current != coro)
2967	{	3258	{
		3259	PUTBACK;
2968	save_perl (aTHX_ coro);	3260	save_perl (aTHX_ coro);
2969	load_perl (aTHX_ &temp);	3261	load_perl (aTHX_ current);
2970	SPAGAIN;	3262	SPAGAIN;
2971	}	3263	}
2972	}	3264	}
2973	}	3265	}
2974		3266
…		…
2978	ALIAS:	3270	ALIAS:
2979	is_ready = CF_READY	3271	is_ready = CF_READY
2980	is_running = CF_RUNNING	3272	is_running = CF_RUNNING
2981	is_new = CF_NEW	3273	is_new = CF_NEW
2982	is_destroyed = CF_DESTROYED	3274	is_destroyed = CF_DESTROYED
		3275	is_suspended = CF_SUSPENDED
2983	CODE:	3276	CODE:
2984	RETVAL = boolSV (coro->flags & ix);	3277	RETVAL = boolSV (coro->flags & ix);
2985	OUTPUT:	3278	OUTPUT:
2986	RETVAL	3279	RETVAL
2987		3280
2988	void	3281	void
2989	throw (Coro::State self, SV *throw = &PL_sv_undef)	3282	throw (Coro::State self, SV *exception = &PL_sv_undef)
2990	PROTOTYPE: $;$	3283	PROTOTYPE: $;$
2991	CODE:	3284	CODE:
2992	{	3285	{
2993	struct coro *current = SvSTATE_current;	3286	struct coro *current = SvSTATE_current;
2994	SV **throwp = self == current ? &CORO_THROW : &self->except;	3287	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2995	SvREFCNT_dec (*throwp);	3288	SvREFCNT_dec (*exceptionp);
2996	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3289	SvGETMAGIC (exception);
		3290	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2997	}	3291	}
2998		3292
2999	void	3293	void
3000	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3294	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3001	PROTOTYPE: $;$	3295	PROTOTYPE: $;$
…		…
3003		3297
3004	SV *	3298	SV *
3005	has_cctx (Coro::State coro)	3299	has_cctx (Coro::State coro)
3006	PROTOTYPE: $	3300	PROTOTYPE: $
3007	CODE:	3301	CODE:
3008	RETVAL = boolSV (!!coro->cctx);	3302	/* maybe manage the running flag differently */
		3303	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3009	OUTPUT:	3304	OUTPUT:
3010	RETVAL	3305	RETVAL
3011		3306
3012	int	3307	int
3013	is_traced (Coro::State coro)	3308	is_traced (Coro::State coro)
…		…
3033		3328
3034	void	3329	void
3035	force_cctx ()	3330	force_cctx ()
3036	PROTOTYPE:	3331	PROTOTYPE:
3037	CODE:	3332	CODE:
3038	SvSTATE_current->cctx->idle_sp = 0;	3333	cctx_current->idle_sp = 0;
3039		3334
3040	void	3335	void
3041	swap_defsv (Coro::State self)	3336	swap_defsv (Coro::State self)
3042	PROTOTYPE: $	3337	PROTOTYPE: $
3043	ALIAS:	3338	ALIAS:
…		…
3051	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3346	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3052		3347
3053	SV *tmp = *src; *src = *dst; *dst = tmp;	3348	SV *tmp = *src; *src = *dst; *dst = tmp;
3054	}	3349	}
3055		3350
		3351	void
		3352	cancel (Coro::State self)
		3353	CODE:
		3354	coro_state_destroy (aTHX_ self);
		3355	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3356
		3357
		3358	SV *
		3359	enable_times (int enabled = enable_times)
		3360	CODE:
		3361	{
		3362	RETVAL = boolSV (enable_times);
		3363
		3364	if (enabled != enable_times)
		3365	{
		3366	enable_times = enabled;
		3367
		3368	coro_times_update ();
		3369	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3370	}
		3371	}
		3372	OUTPUT:
		3373	RETVAL
		3374
		3375	void
		3376	times (Coro::State self)
		3377	PPCODE:
		3378	{
		3379	struct coro *current = SvSTATE (coro_current);
		3380
		3381	if (expect_false (current == self))
		3382	{
		3383	coro_times_update ();
		3384	coro_times_add (SvSTATE (coro_current));
		3385	}
		3386
		3387	EXTEND (SP, 2);
		3388	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3389	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3390
		3391	if (expect_false (current == self))
		3392	coro_times_sub (SvSTATE (coro_current));
		3393	}
		3394
		3395	void
		3396	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3397	CODE:
		3398	{
		3399	struct coro *current = SvSTATE_current;
		3400
		3401	if (current == coro)
		3402	SWAP_SVS (current);
		3403
		3404	if (!coro->swap_sv)
		3405	coro->swap_sv = newAV ();
		3406
		3407	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3408	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3409
		3410	if (current == coro)
		3411	SWAP_SVS (current);
		3412	}
		3413
3056		3414
3057	MODULE = Coro::State PACKAGE = Coro	3415	MODULE = Coro::State PACKAGE = Coro
3058		3416
3059	BOOT:	3417	BOOT:
3060	{	3418	{
3061	int i;
3062
3063	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3419	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3064	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3420	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3065	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3421	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3066	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3422	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3067	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3423	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3068	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3424	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3069	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3425	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3070	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3426	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3427	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3071		3428
3072	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3429	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3073	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3430	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3074	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3431	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3075	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3432	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3076		3433
3077	coro_stash = gv_stashpv ("Coro", TRUE);	3434	coro_stash = gv_stashpv ("Coro", TRUE);
3078		3435
3079	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3436	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3080	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3437	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3081	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3438	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3082	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3439	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3083	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3440	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3084	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3441	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3085
3086	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3087	coro_ready[i] = newAV ();
3088		3442
3089	{	3443	{
3090	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3444	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3091		3445
3092	coroapi.schedule = api_schedule;	3446	coroapi.schedule = api_schedule;
…		…
3102	sv_setiv (sv, (IV)&coroapi);	3456	sv_setiv (sv, (IV)&coroapi);
3103	SvREADONLY_on (sv);	3457	SvREADONLY_on (sv);
3104	}	3458	}
3105	}	3459	}
3106		3460
		3461	SV *
		3462	async (...)
		3463	PROTOTYPE: &@
		3464	CODE:
		3465	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3466	api_ready (aTHX_ RETVAL);
		3467	OUTPUT:
		3468	RETVAL
		3469
3107	void	3470	void
3108	terminate (...)	3471	terminate (...)
3109	CODE:	3472	CODE:
3110	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3473	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3111		3474
…		…
3131		3494
3132	void	3495	void
3133	cede_notself (...)	3496	cede_notself (...)
3134	CODE:	3497	CODE:
3135	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3498	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3136
3137	void
3138	_cancel (Coro::State self)
3139	CODE:
3140	coro_state_destroy (aTHX_ self);
3141	coro_call_on_destroy (aTHX_ self);
3142		3499
3143	void	3500	void
3144	_set_current (SV *current)	3501	_set_current (SV *current)
3145	PROTOTYPE: $	3502	PROTOTYPE: $
3146	CODE:	3503	CODE:
…		…
3150	void	3507	void
3151	_set_readyhook (SV *hook)	3508	_set_readyhook (SV *hook)
3152	PROTOTYPE: $	3509	PROTOTYPE: $
3153	CODE:	3510	CODE:
3154	SvREFCNT_dec (coro_readyhook);	3511	SvREFCNT_dec (coro_readyhook);
		3512	SvGETMAGIC (hook);
		3513	if (SvOK (hook))
		3514	{
3155	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3515	coro_readyhook = newSVsv (hook);
		3516	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3517	}
		3518	else
		3519	{
		3520	coro_readyhook = 0;
		3521	CORO_READYHOOK = 0;
		3522	}
3156		3523
3157	int	3524	int
3158	prio (Coro::State coro, int newprio = 0)	3525	prio (Coro::State coro, int newprio = 0)
3159	PROTOTYPE: $;$	3526	PROTOTYPE: $;$
3160	ALIAS:	3527	ALIAS:
…		…
3166	if (items > 1)	3533	if (items > 1)
3167	{	3534	{
3168	if (ix)	3535	if (ix)
3169	newprio = coro->prio - newprio;	3536	newprio = coro->prio - newprio;
3170		3537
3171	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3538	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3172	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3539	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3173		3540
3174	coro->prio = newprio;	3541	coro->prio = newprio;
3175	}	3542	}
3176	}	3543	}
3177	OUTPUT:	3544	OUTPUT:
…		…
3192	RETVAL = coro_nready;	3559	RETVAL = coro_nready;
3193	OUTPUT:	3560	OUTPUT:
3194	RETVAL	3561	RETVAL
3195		3562
3196	void	3563	void
		3564	suspend (Coro::State self)
		3565	PROTOTYPE: $
		3566	CODE:
		3567	self->flags |= CF_SUSPENDED;
		3568
		3569	void
		3570	resume (Coro::State self)
		3571	PROTOTYPE: $
		3572	CODE:
		3573	self->flags &= ~CF_SUSPENDED;
		3574
		3575	void
3197	_pool_handler (...)	3576	_pool_handler (...)
3198	CODE:	3577	CODE:
3199	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3578	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3200		3579
3201	void	3580	void
…		…
3212	for (i = 1; i < items; ++i)	3591	for (i = 1; i < items; ++i)
3213	av_push (av, SvREFCNT_inc_NN (ST (i)));	3592	av_push (av, SvREFCNT_inc_NN (ST (i)));
3214		3593
3215	if ((SV *)hv == &PL_sv_undef)	3594	if ((SV *)hv == &PL_sv_undef)
3216	{	3595	{
3217	PUSHMARK (SP);	3596	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3218	EXTEND (SP, 2);
3219	PUSHs (sv_Coro);
3220	PUSHs ((SV *)cv_pool_handler);
3221	PUTBACK;
3222	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3223	SPAGAIN;
3224
3225	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3597	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3598	SvREFCNT_dec (sv);
3226	}	3599	}
3227		3600
3228	{	3601	{
3229	struct coro *coro = SvSTATE_hv (hv);	3602	struct coro *coro = SvSTATE_hv (hv);
3230		3603
…		…
3254	rouse_wait (...)	3627	rouse_wait (...)
3255	PROTOTYPE: ;$	3628	PROTOTYPE: ;$
3256	PPCODE:	3629	PPCODE:
3257	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3630	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3258		3631
		3632	void
		3633	on_enter (SV *block)
		3634	ALIAS:
		3635	on_leave = 1
		3636	PROTOTYPE: &
		3637	CODE:
		3638	{
		3639	struct coro *coro = SvSTATE_current;
		3640	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3641
		3642	block = s_get_cv_croak (block);
		3643
		3644	if (!*avp)
		3645	*avp = newAV ();
		3646
		3647	av_push (*avp, SvREFCNT_inc (block));
		3648
		3649	if (!ix)
		3650	on_enterleave_call (aTHX_ block);
		3651
		3652	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3653	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3654	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3655	}
		3656
3259		3657
3260	MODULE = Coro::State PACKAGE = PerlIO::cede	3658	MODULE = Coro::State PACKAGE = PerlIO::cede
3261		3659
3262	BOOT:	3660	BOOT:
3263	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3661	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3266	MODULE = Coro::State PACKAGE = Coro::Semaphore	3664	MODULE = Coro::State PACKAGE = Coro::Semaphore
3267		3665
3268	SV *	3666	SV *
3269	new (SV *klass, SV *count = 0)	3667	new (SV *klass, SV *count = 0)
3270	CODE:	3668	CODE:
		3669	{
		3670	int semcnt = 1;
		3671
		3672	if (count)
		3673	{
		3674	SvGETMAGIC (count);
		3675
		3676	if (SvOK (count))
		3677	semcnt = SvIV (count);
		3678	}
		3679
3271	RETVAL = sv_bless (	3680	RETVAL = sv_bless (
3272	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3681	coro_waitarray_new (aTHX_ semcnt),
3273	GvSTASH (CvGV (cv))	3682	GvSTASH (CvGV (cv))
3274	);	3683	);
		3684	}
3275	OUTPUT:	3685	OUTPUT:
3276	RETVAL	3686	RETVAL
3277		3687
3278	# helper for Coro::Channel	3688	# helper for Coro::Channel and others
3279	SV *	3689	SV *
3280	_alloc (int count)	3690	_alloc (int count)
3281	CODE:	3691	CODE:
3282	RETVAL = coro_waitarray_new (aTHX_ count);	3692	RETVAL = coro_waitarray_new (aTHX_ count);
3283	OUTPUT:	3693	OUTPUT:
…		…
3341	for (i = 1; i <= wcount; ++i)	3751	for (i = 1; i <= wcount; ++i)
3342	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3752	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3343	}	3753	}
3344	}	3754	}
3345		3755
		3756	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3757
		3758	void
		3759	_may_delete (SV *sem, int count, int extra_refs)
		3760	PPCODE:
		3761	{
		3762	AV *av = (AV *)SvRV (sem);
		3763
		3764	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3765	&& AvFILLp (av) == 0 /* no waiters, just count */
		3766	&& SvIV (AvARRAY (av)[0]) == count)
		3767	XSRETURN_YES;
		3768
		3769	XSRETURN_NO;
		3770	}
		3771
3346	MODULE = Coro::State PACKAGE = Coro::Signal	3772	MODULE = Coro::State PACKAGE = Coro::Signal
3347		3773
3348	SV *	3774	SV *
3349	new (SV *klass)	3775	new (SV *klass)
3350	CODE:	3776	CODE:
…		…
3421		3847
3422	void	3848	void
3423	_register (char *target, char *proto, SV *req)	3849	_register (char *target, char *proto, SV *req)
3424	CODE:	3850	CODE:
3425	{	3851	{
3426	CV *req_cv = coro_sv_2cv (aTHX_ req);	3852	SV *req_cv = s_get_cv_croak (req);
3427	/* newXSproto doesn't return the CV on 5.8 */	3853	/* newXSproto doesn't return the CV on 5.8 */
3428	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3854	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3429	sv_setpv ((SV *)slf_cv, proto);	3855	sv_setpv ((SV *)slf_cv, proto);
3430	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3856	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3431	}	3857	}
3432		3858
		3859	MODULE = Coro::State PACKAGE = Coro::Select
		3860
		3861	void
		3862	patch_pp_sselect ()
		3863	CODE:
		3864	if (!coro_old_pp_sselect)
		3865	{
		3866	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3867	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3868	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3869	}
		3870
		3871	void
		3872	unpatch_pp_sselect ()
		3873	CODE:
		3874	if (coro_old_pp_sselect)
		3875	{
		3876	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3877	coro_old_pp_sselect = 0;
		3878	}
		3879

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