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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC vs.
Revision 1.372 by root, Thu Oct 1 23:50:23 2009 UTC

1	#define CORO_CLONE 1 //D
2
3	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
4		2
5	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
6	#define PERL_EXT	4	#define PERL_EXT
7		5
8	#include "EXTERN.h"	6	#include "EXTERN.h"
9	#include "perl.h"	7	#include "perl.h"
10	#include "XSUB.h"	8	#include "XSUB.h"
11	#include "perliol.h"	9	#include "perliol.h"
12		10
13	#include "patchlevel.h"	11	#include "schmorp.h"
14		12
15	#include <stdio.h>	13	#include <stdio.h>
16	#include <errno.h>	14	#include <errno.h>
17	#include <assert.h>	15	#include <assert.h>
18		16
…		…
53	#endif	51	#endif
54		52
55	/* the maximum number of idle cctx that will be pooled */	53	/* the maximum number of idle cctx that will be pooled */
56	static int cctx_max_idle = 4;	54	static int cctx_max_idle = 4;
57		55
58	#define PERL_VERSION_ATLEAST(a,b,c) \
59	(PERL_REVISION > (a) \
60	|| (PERL_REVISION == (a) \
61	&& (PERL_VERSION > (b) \
62	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
63
64	#if !PERL_VERSION_ATLEAST (5,6,0)
65	# ifndef PL_ppaddr
66	# define PL_ppaddr ppaddr
67	# endif
68	# ifndef call_sv
69	# define call_sv perl_call_sv
70	# endif
71	# ifndef get_sv
72	# define get_sv perl_get_sv
73	# endif
74	# ifndef get_cv
75	# define get_cv perl_get_cv
76	# endif
77	# ifndef IS_PADGV
78	# define IS_PADGV(v) 0
79	# endif
80	# ifndef IS_PADCONST
81	# define IS_PADCONST(v) 0
82	# endif
83	#endif
84
85	/* 5.11 */
86	#ifndef CxHASARGS
87	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88	#endif
89
90	/* 5.10.0 */
91	#ifndef SvREFCNT_inc_NN
92	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
93	#endif
94
95	/* 5.8.8 */
96	#ifndef GV_NOTQUAL
97	# define GV_NOTQUAL 0
98	#endif
99	#ifndef newSV
100	# define newSV(l) NEWSV(0,l)
101	#endif
102	#ifndef CvISXSUB_on
103	# define CvISXSUB_on(cv) (void)cv
104	#endif
105	#ifndef CvISXSUB
106	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
107	#endif
108	#ifndef Newx
109	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
110	#endif
111
112	/* 5.8.7 */
113	#ifndef SvRV_set
114	# define SvRV_set(s,v) SvRV(s) = (v)
115	#endif
116
117	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	56	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
118	# undef CORO_STACKGUARD	57	# undef CORO_STACKGUARD
119	#endif	58	#endif
120		59
121	#ifndef CORO_STACKGUARD	60	#ifndef CORO_STACKGUARD
…		…
135	#else	74	#else
136	# define dSTACKLEVEL volatile void *stacklevel	75	# define dSTACKLEVEL volatile void *stacklevel
137	# define STACKLEVEL ((void *)&stacklevel)	76	# define STACKLEVEL ((void *)&stacklevel)
138	#endif	77	#endif
139		78
140	#define IN_DESTRUCT (PL_main_cv == Nullcv)	79	#define IN_DESTRUCT PL_dirty
141		80
142	#if __GNUC__ >= 3	81	#if __GNUC__ >= 3
143	# define attribute(x) __attribute__(x)	82	# define attribute(x) __attribute__(x)
144	# define expect(expr,value) __builtin_expect ((expr),(value))	83	# define expect(expr,value) __builtin_expect ((expr), (value))
145	# define INLINE static inline	84	# define INLINE static inline
146	#else	85	#else
147	# define attribute(x)	86	# define attribute(x)
148	# define expect(expr,value) (expr)	87	# define expect(expr,value) (expr)
149	# define INLINE static	88	# define INLINE static
…		…
161	# if CORO_PTHREAD	100	# if CORO_PTHREAD
162	static void *coro_thx;	101	static void *coro_thx;
163	# endif	102	# endif
164	#endif	103	#endif
165		104
		105	#ifdef __linux
		106	# include <time.h> /* for timespec */
		107	# include <syscall.h> /* for SYS_* */
		108	# ifdef SYS_clock_gettime
		109	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		110	# define CORO_CLOCK_MONOTONIC 1
		111	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		112	# endif
		113	#endif
		114
166	static double (*nvtime)(); /* so why doesn't it take void? */	115	static double (*nvtime)(); /* so why doesn't it take void? */
		116	static void (*u2time)(pTHX_ UV ret[2]);
167		117
168	/* we hijack an hopefully unused CV flag for our purposes */	118	/* we hijack an hopefully unused CV flag for our purposes */
169	#define CVf_SLF 0x4000	119	#define CVf_SLF 0x4000
170	static OP *pp_slf (pTHX);	120	static OP *pp_slf (pTHX);
171		121
…		…
177	static HV *coro_state_stash, *coro_stash;	127	static HV *coro_state_stash, *coro_stash;
178	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	128	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
179		129
180	static AV *av_destroy; /* destruction queue */	130	static AV *av_destroy; /* destruction queue */
181	static SV *sv_manager; /* the manager coro */	131	static SV *sv_manager; /* the manager coro */
		132	static SV *sv_idle; /* $Coro::idle */
182		133
183	static GV *irsgv; /* $/ */	134	static GV *irsgv; /* $/ */
184	static GV *stdoutgv; /* *STDOUT */	135	static GV *stdoutgv; /* *STDOUT */
185	static SV *rv_diehook;	136	static SV *rv_diehook;
186	static SV *rv_warnhook;	137	static SV *rv_warnhook;
…		…
191	static SV *sv_pool_size;	142	static SV *sv_pool_size;
192	static SV *sv_async_pool_idle; /* description string */	143	static SV *sv_async_pool_idle; /* description string */
193	static AV *av_async_pool; /* idle pool */	144	static AV *av_async_pool; /* idle pool */
194	static SV *sv_Coro; /* class string */	145	static SV *sv_Coro; /* class string */
195	static CV *cv_pool_handler;	146	static CV *cv_pool_handler;
196	static CV *cv_coro_state_new;
197		147
198	/* Coro::AnyEvent */	148	/* Coro::AnyEvent */
199	static SV *sv_activity;	149	static SV *sv_activity;
		150
		151	/* enable processtime/realtime profiling */
		152	static char enable_times;
		153	typedef U32 coro_ts[2];
		154	static coro_ts time_real, time_cpu;
		155	static char times_valid;
200		156
201	static struct coro_cctx *cctx_first;	157	static struct coro_cctx *cctx_first;
202	static int cctx_count, cctx_idle;	158	static int cctx_count, cctx_idle;
203		159
204	enum {	160	enum {
…		…
230	int valgrind_id;	186	int valgrind_id;
231	#endif	187	#endif
232	unsigned char flags;	188	unsigned char flags;
233	} coro_cctx;	189	} coro_cctx;
234		190
		191	coro_cctx *cctx_current; /* the currently running cctx */
		192
		193	/*****************************************************************************/
		194
235	enum {	195	enum {
236	CF_RUNNING = 0x0001, /* coroutine is running */	196	CF_RUNNING = 0x0001, /* coroutine is running */
237	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
238	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
239	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		200	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
240	};	201	};
241		202
242	/* the structure where most of the perl state is stored, overlaid on the cxstack */	203	/* the structure where most of the perl state is stored, overlaid on the cxstack */
243	typedef struct	204	typedef struct
244	{	205	{
245	SV *defsv;	206	SV *defsv;
246	AV *defav;	207	AV *defav;
247	SV *errsv;	208	SV *errsv;
248	SV *irsgv;	209	SV *irsgv;
		210	HV *hinthv;
249	#define VAR(name,type) type name;	211	#define VAR(name,type) type name;
250	# include "state.h"	212	# include "state.h"
251	#undef VAR	213	#undef VAR
252	} perl_slots;	214	} perl_slots;
253		215
…		…
255		217
256	/* this is a structure representing a perl-level coroutine */	218	/* this is a structure representing a perl-level coroutine */
257	struct coro {	219	struct coro {
258	/* the C coroutine allocated to this perl coroutine, if any */	220	/* the C coroutine allocated to this perl coroutine, if any */
259	coro_cctx *cctx;	221	coro_cctx *cctx;
		222
		223	/* ready queue */
		224	struct coro *next_ready;
260		225
261	/* state data */	226	/* state data */
262	struct CoroSLF slf_frame; /* saved slf frame */	227	struct CoroSLF slf_frame; /* saved slf frame */
263	AV *mainstack;	228	AV *mainstack;
264	perl_slots *slot; /* basically the saved sp */	229	perl_slots *slot; /* basically the saved sp */
…		…
281	/* async_pool */	246	/* async_pool */
282	SV *saved_deffh;	247	SV *saved_deffh;
283	SV *invoke_cb;	248	SV *invoke_cb;
284	AV *invoke_av;	249	AV *invoke_av;
285		250
		251	/* on_enter/on_leave */
		252	AV *on_enter;
		253	AV *on_leave;
		254
		255	/* times */
		256	coro_ts t_cpu, t_real;
		257
286	/* linked list */	258	/* linked list */
287	struct coro *next, *prev;	259	struct coro *next, *prev;
288	};	260	};
289		261
290	typedef struct coro *Coro__State;	262	typedef struct coro *Coro__State;
…		…
295	/* the mainr easonw e don't support windows process emulation */	267	/* the mainr easonw e don't support windows process emulation */
296	static struct CoroSLF slf_frame; /* the current slf frame */	268	static struct CoroSLF slf_frame; /* the current slf frame */
297		269
298	/** Coro ********************************************************************/	270	/** Coro ********************************************************************/
299		271
300	#define PRIO_MAX 3	272	#define CORO_PRIO_MAX 3
301	#define PRIO_HIGH 1	273	#define CORO_PRIO_HIGH 1
302	#define PRIO_NORMAL 0	274	#define CORO_PRIO_NORMAL 0
303	#define PRIO_LOW -1	275	#define CORO_PRIO_LOW -1
304	#define PRIO_IDLE -3	276	#define CORO_PRIO_IDLE -3
305	#define PRIO_MIN -4	277	#define CORO_PRIO_MIN -4
306		278
307	/* for Coro.pm */	279	/* for Coro.pm */
308	static SV *coro_current;	280	static SV *coro_current;
309	static SV *coro_readyhook;	281	static SV *coro_readyhook;
310	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	282	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
311	static CV *cv_coro_run, *cv_coro_terminate;	283	static CV *cv_coro_run, *cv_coro_terminate;
312	static struct coro *coro_first;	284	static struct coro *coro_first;
313	#define coro_nready coroapi.nready	285	#define coro_nready coroapi.nready
		286
		287	/** Coro::Select ************************************************************/
		288
		289	static OP *(*coro_old_pp_sselect) (pTHX);
		290	static SV *coro_select_select;
		291
		292	/* horrible hack, but if it works... */
		293	static OP *
		294	coro_pp_sselect (pTHX)
		295	{
		296	dSP;
		297	PUSHMARK (SP - 4); /* fake argument list */
		298	XPUSHs (coro_select_select);
		299	PUTBACK;
		300
		301	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		302	PL_op->op_flags |= OPf_STACKED;
		303	PL_op->op_private = 0;
		304	return PL_ppaddr [OP_ENTERSUB](aTHX);
		305	}
314		306
315	/** lowlevel stuff **********************************************************/	307	/** lowlevel stuff **********************************************************/
316		308
317	static SV *	309	static SV *
318	coro_get_sv (pTHX_ const char *name, int create)	310	coro_get_sv (pTHX_ const char *name, int create)
…		…
342	get_hv (name, create);	334	get_hv (name, create);
343	#endif	335	#endif
344	return get_hv (name, create);	336	return get_hv (name, create);
345	}	337	}
346		338
347	/* may croak */	339	INLINE void
348	INLINE CV *	340	coro_times_update ()
349	coro_sv_2cv (pTHX_ SV *sv)
350	{	341	{
		342	#ifdef coro_clock_gettime
		343	struct timespec ts;
		344
		345	ts.tv_sec = ts.tv_nsec = 0;
		346	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		347	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		348
		349	ts.tv_sec = ts.tv_nsec = 0;
		350	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		351	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		352	#else
		353	dTHX;
		354	UV tv[2];
		355
		356	u2time (aTHX_ tv);
		357	time_real [0] = tv [0];
		358	time_real [1] = tv [1] * 1000;
		359	#endif
		360	}
		361
		362	INLINE void
		363	coro_times_add (struct coro *c)
		364	{
		365	c->t_real [1] += time_real [1];
		366	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		367	c->t_real [0] += time_real [0];
		368
		369	c->t_cpu [1] += time_cpu [1];
		370	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		371	c->t_cpu [0] += time_cpu [0];
		372	}
		373
		374	INLINE void
		375	coro_times_sub (struct coro *c)
		376	{
		377	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		378	c->t_real [1] -= time_real [1];
		379	c->t_real [0] -= time_real [0];
		380
		381	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		382	c->t_cpu [1] -= time_cpu [1];
		383	c->t_cpu [0] -= time_cpu [0];
		384	}
		385
		386	/*****************************************************************************/
		387	/* magic glue */
		388
		389	#define CORO_MAGIC_type_cv 26
		390	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		391
		392	#define CORO_MAGIC_NN(sv, type) \
		393	(expect_true (SvMAGIC (sv)->mg_type == type) \
		394	? SvMAGIC (sv) \
		395	: mg_find (sv, type))
		396
		397	#define CORO_MAGIC(sv, type) \
		398	(expect_true (SvMAGIC (sv)) \
		399	? CORO_MAGIC_NN (sv, type) \
		400	: 0)
		401
		402	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		403	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		404
		405	INLINE struct coro *
		406	SvSTATE_ (pTHX_ SV *coro)
		407	{
351	HV *st;	408	HV *stash;
352	GV *gvp;	409	MAGIC *mg;
353	return sv_2cv (sv, &st, &gvp, 0);	410
		411	if (SvROK (coro))
		412	coro = SvRV (coro);
		413
		414	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		415	croak ("Coro::State object required");
		416
		417	stash = SvSTASH (coro);
		418	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		419	{
		420	/* very slow, but rare, check */
		421	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		422	croak ("Coro::State object required");
		423	}
		424
		425	mg = CORO_MAGIC_state (coro);
		426	return (struct coro *)mg->mg_ptr;
354	}	427	}
		428
		429	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		430
		431	/* faster than SvSTATE, but expects a coroutine hv */
		432	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		433	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		434
		435	/*****************************************************************************/
		436	/* padlist management and caching */
355		437
356	static AV *	438	static AV *
357	coro_derive_padlist (pTHX_ CV *cv)	439	coro_derive_padlist (pTHX_ CV *cv)
358	{	440	{
359	AV *padlist = CvPADLIST (cv);	441	AV *padlist = CvPADLIST (cv);
…		…
367	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	449	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
368	#endif	450	#endif
369	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	451	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
370	--AvFILLp (padlist);	452	--AvFILLp (padlist);
371		453
372	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	454	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
373	av_store (newpadlist, 1, (SV *)newpad);	455	av_store (newpadlist, 1, (SV *)newpad);
374		456
375	return newpadlist;	457	return newpadlist;
376	}	458	}
377		459
378	static void	460	static void
379	free_padlist (pTHX_ AV *padlist)	461	free_padlist (pTHX_ AV *padlist)
380	{	462	{
381	/* may be during global destruction */	463	/* may be during global destruction */
382	if (SvREFCNT (padlist))	464	if (!IN_DESTRUCT)
383	{	465	{
384	I32 i = AvFILLp (padlist);	466	I32 i = AvFILLp (padlist);
385	while (i >= 0)	467
		468	while (i > 0) /* special-case index 0 */
386	{	469	{
387	SV **svp = av_fetch (padlist, i--, FALSE);	470	/* we try to be extra-careful here */
388	if (svp)	471	AV *av = (AV *)AvARRAY (padlist)[i--];
389	{	472	I32 j = AvFILLp (av);
390	SV *sv;	473
391	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	474	while (j >= 0)
		475	SvREFCNT_dec (AvARRAY (av)[j--]);
		476
		477	AvFILLp (av) = -1;
392	SvREFCNT_dec (sv);	478	SvREFCNT_dec (av);
393
394	SvREFCNT_dec (*svp);
395	}
396	}	479	}
397		480
		481	SvREFCNT_dec (AvARRAY (padlist)[0]);
		482
		483	AvFILLp (padlist) = -1;
398	SvREFCNT_dec ((SV*)padlist);	484	SvREFCNT_dec ((SV*)padlist);
399	}	485	}
400	}	486	}
401		487
402	static int	488	static int
403	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	489	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
404	{	490	{
405	AV *padlist;	491	AV *padlist;
406	AV *av = (AV *)mg->mg_obj;	492	AV *av = (AV *)mg->mg_obj;
		493
		494	/* perl manages to free our internal AV and _then_ call us */
		495	if (IN_DESTRUCT)
		496	return 0;
407		497
408	/* casting is fun. */	498	/* casting is fun. */
409	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	499	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
410	free_padlist (aTHX_ padlist);	500	free_padlist (aTHX_ padlist);
411		501
412	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	502	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
413		503
414	return 0;	504	return 0;
415	}	505	}
416
417	#define CORO_MAGIC_type_cv 26
418	#define CORO_MAGIC_type_state PERL_MAGIC_ext
419		506
420	static MGVTBL coro_cv_vtbl = {	507	static MGVTBL coro_cv_vtbl = {
421	0, 0, 0, 0,	508	0, 0, 0, 0,
422	coro_cv_free	509	coro_cv_free
423	};	510	};
424
425	#define CORO_MAGIC_NN(sv, type) \
426	(expect_true (SvMAGIC (sv)->mg_type == type) \
427	? SvMAGIC (sv) \
428	: mg_find (sv, type))
429
430	#define CORO_MAGIC(sv, type) \
431	(expect_true (SvMAGIC (sv)) \
432	? CORO_MAGIC_NN (sv, type) \
433	: 0)
434
435	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
436	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
437
438	INLINE struct coro *
439	SvSTATE_ (pTHX_ SV *coro)
440	{
441	HV *stash;
442	MAGIC *mg;
443
444	if (SvROK (coro))
445	coro = SvRV (coro);
446
447	if (expect_false (SvTYPE (coro) != SVt_PVHV))
448	croak ("Coro::State object required");
449
450	stash = SvSTASH (coro);
451	if (expect_false (stash != coro_stash && stash != coro_state_stash))
452	{
453	/* very slow, but rare, check */
454	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
455	croak ("Coro::State object required");
456	}
457
458	mg = CORO_MAGIC_state (coro);
459	return (struct coro *)mg->mg_ptr;
460	}
461
462	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
463
464	/* faster than SvSTATE, but expects a coroutine hv */
465	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
466	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
467		511
468	/* the next two functions merely cache the padlists */	512	/* the next two functions merely cache the padlists */
469	static void	513	static void
470	get_padlist (pTHX_ CV *cv)	514	get_padlist (pTHX_ CV *cv)
471	{	515	{
…		…
499	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	543	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
500		544
501	av = (AV *)mg->mg_obj;	545	av = (AV *)mg->mg_obj;
502		546
503	if (expect_false (AvFILLp (av) >= AvMAX (av)))	547	if (expect_false (AvFILLp (av) >= AvMAX (av)))
504	av_extend (av, AvMAX (av) + 1);	548	av_extend (av, AvFILLp (av) + 1);
505		549
506	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	550	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
507	}	551	}
508		552
509	/** load & save, init *******************************************************/	553	/** load & save, init *******************************************************/
		554
		555	static void
		556	on_enterleave_call (pTHX_ SV *cb);
510		557
511	static void	558	static void
512	load_perl (pTHX_ Coro__State c)	559	load_perl (pTHX_ Coro__State c)
513	{	560	{
514	perl_slots *slot = c->slot;	561	perl_slots *slot = c->slot;
515	c->slot = 0;	562	c->slot = 0;
516		563
517	PL_mainstack = c->mainstack;	564	PL_mainstack = c->mainstack;
518		565
519	GvSV (PL_defgv) = slot->defsv;	566	GvSV (PL_defgv) = slot->defsv;
520	GvAV (PL_defgv) = slot->defav;	567	GvAV (PL_defgv) = slot->defav;
521	GvSV (PL_errgv) = slot->errsv;	568	GvSV (PL_errgv) = slot->errsv;
522	GvSV (irsgv) = slot->irsgv;	569	GvSV (irsgv) = slot->irsgv;
		570	GvHV (PL_hintgv) = slot->hinthv;
523		571
524	#define VAR(name,type) PL_ ## name = slot->name;	572	#define VAR(name,type) PL_ ## name = slot->name;
525	# include "state.h"	573	# include "state.h"
526	#undef VAR	574	#undef VAR
527		575
…		…
541	PUTBACK;	589	PUTBACK;
542	}	590	}
543		591
544	slf_frame = c->slf_frame;	592	slf_frame = c->slf_frame;
545	CORO_THROW = c->except;	593	CORO_THROW = c->except;
		594
		595	if (expect_false (enable_times))
		596	{
		597	if (expect_false (!times_valid))
		598	coro_times_update ();
		599
		600	coro_times_sub (c);
		601	}
		602
		603	if (expect_false (c->on_enter))
		604	{
		605	int i;
		606
		607	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		608	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		609	}
546	}	610	}
547		611
548	static void	612	static void
549	save_perl (pTHX_ Coro__State c)	613	save_perl (pTHX_ Coro__State c)
550	{	614	{
		615	if (expect_false (c->on_leave))
		616	{
		617	int i;
		618
		619	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		620	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		621	}
		622
		623	times_valid = 0;
		624
		625	if (expect_false (enable_times))
		626	{
		627	coro_times_update (); times_valid = 1;
		628	coro_times_add (c);
		629	}
		630
551	c->except = CORO_THROW;	631	c->except = CORO_THROW;
552	c->slf_frame = slf_frame;	632	c->slf_frame = slf_frame;
553		633
554	{	634	{
555	dSP;	635	dSP;
…		…
568	{	648	{
569	while (expect_true (cxix >= 0))	649	while (expect_true (cxix >= 0))
570	{	650	{
571	PERL_CONTEXT *cx = &ccstk[cxix--];	651	PERL_CONTEXT *cx = &ccstk[cxix--];
572		652
573	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	653	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
574	{	654	{
575	CV *cv = cx->blk_sub.cv;	655	CV *cv = cx->blk_sub.cv;
576		656
577	if (expect_true (CvDEPTH (cv)))	657	if (expect_true (CvDEPTH (cv)))
578	{	658	{
…		…
602	/* we manually unroll here, as usually 2 slots is enough */	682	/* we manually unroll here, as usually 2 slots is enough */
603	if (SLOT_COUNT >= 1) CXINC;	683	if (SLOT_COUNT >= 1) CXINC;
604	if (SLOT_COUNT >= 2) CXINC;	684	if (SLOT_COUNT >= 2) CXINC;
605	if (SLOT_COUNT >= 3) CXINC;	685	if (SLOT_COUNT >= 3) CXINC;
606	{	686	{
607	int i;	687	unsigned int i;
608	for (i = 3; i < SLOT_COUNT; ++i)	688	for (i = 3; i < SLOT_COUNT; ++i)
609	CXINC;	689	CXINC;
610	}	690	}
611	cxstack_ix -= SLOT_COUNT; /* undo allocation */	691	cxstack_ix -= SLOT_COUNT; /* undo allocation */
612		692
613	c->mainstack = PL_mainstack;	693	c->mainstack = PL_mainstack;
614		694
615	{	695	{
616	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	696	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
617		697
618	slot->defav = GvAV (PL_defgv);	698	slot->defav = GvAV (PL_defgv);
619	slot->defsv = DEFSV;	699	slot->defsv = DEFSV;
620	slot->errsv = ERRSV;	700	slot->errsv = ERRSV;
621	slot->irsgv = GvSV (irsgv);	701	slot->irsgv = GvSV (irsgv);
		702	slot->hinthv = GvHV (PL_hintgv);
622		703
623	#define VAR(name,type) slot->name = PL_ ## name;	704	#define VAR(name,type) slot->name = PL_ ## name;
624	# include "state.h"	705	# include "state.h"
625	#undef VAR	706	#undef VAR
626	}	707	}
…		…
753	#endif	834	#endif
754		835
755	/*	836	/*
756	* This overrides the default magic get method of %SIG elements.	837	* This overrides the default magic get method of %SIG elements.
757	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	838	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
758	* and instead of tryign to save and restore the hash elements, we just provide	839	* and instead of trying to save and restore the hash elements, we just provide
759	* readback here.	840	* readback here.
760	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
761	* not expecting this to actually change the hook. This is a potential problem
762	* when a schedule happens then, but we ignore this.
763	*/	841	*/
764	static int	842	static int
765	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	843	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
766	{	844	{
767	const char *s = MgPV_nolen_const (mg);	845	const char *s = MgPV_nolen_const (mg);
…		…
820	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	898	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
821		899
822	if (svp)	900	if (svp)
823	{	901	{
824	SV *old = *svp;	902	SV *old = *svp;
825	*svp = newSVsv (sv);	903	*svp = SvOK (sv) ? newSVsv (sv) : 0;
826	SvREFCNT_dec (old);	904	SvREFCNT_dec (old);
827	return 0;	905	return 0;
828	}	906	}
829	}	907	}
830		908
…		…
862		940
863	PL_runops = RUNOPS_DEFAULT;	941	PL_runops = RUNOPS_DEFAULT;
864	PL_curcop = &PL_compiling;	942	PL_curcop = &PL_compiling;
865	PL_in_eval = EVAL_NULL;	943	PL_in_eval = EVAL_NULL;
866	PL_comppad = 0;	944	PL_comppad = 0;
		945	PL_comppad_name = 0;
		946	PL_comppad_name_fill = 0;
		947	PL_comppad_name_floor = 0;
867	PL_curpm = 0;	948	PL_curpm = 0;
868	PL_curpad = 0;	949	PL_curpad = 0;
869	PL_localizing = 0;	950	PL_localizing = 0;
870	PL_dirty = 0;	951	PL_dirty = 0;
871	PL_restartop = 0;	952	PL_restartop = 0;
872	#if PERL_VERSION_ATLEAST (5,10,0)	953	#if PERL_VERSION_ATLEAST (5,10,0)
873	PL_parser = 0;	954	PL_parser = 0;
874	#endif	955	#endif
		956	PL_hints = 0;
875		957
876	/* recreate the die/warn hooks */	958	/* recreate the die/warn hooks */
877	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	959	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
878	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	960	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
879		961
880	GvSV (PL_defgv) = newSV (0);	962	GvSV (PL_defgv) = newSV (0);
881	GvAV (PL_defgv) = coro->args; coro->args = 0;	963	GvAV (PL_defgv) = coro->args; coro->args = 0;
882	GvSV (PL_errgv) = newSV (0);	964	GvSV (PL_errgv) = newSV (0);
883	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	965	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		966	GvHV (PL_hintgv) = 0;
884	PL_rs = newSVsv (GvSV (irsgv));	967	PL_rs = newSVsv (GvSV (irsgv));
885	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	968	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
886		969
887	{	970	{
888	dSP;	971	dSP;
…		…
914		997
915	PL_op = (OP *)&coro_setup_op;	998	PL_op = (OP *)&coro_setup_op;
916		999
917	/* copy throw, in case it was set before coro_setup */	1000	/* copy throw, in case it was set before coro_setup */
918	CORO_THROW = coro->except;	1001	CORO_THROW = coro->except;
919	}
920		1002
		1003	if (expect_false (enable_times))
		1004	{
		1005	coro_times_update ();
		1006	coro_times_sub (coro);
		1007	}
		1008	}
		1009
921	static void	1010	static void
922	coro_destruct (pTHX_ struct coro *coro)	1011	coro_unwind_stacks (pTHX)
923	{	1012	{
924	if (!IN_DESTRUCT)	1013	if (!IN_DESTRUCT)
925	{	1014	{
926	/* restore all saved variables and stuff */	1015	/* restore all saved variables and stuff */
927	LEAVE_SCOPE (0);	1016	LEAVE_SCOPE (0);
…		…
935	POPSTACK_TO (PL_mainstack);	1024	POPSTACK_TO (PL_mainstack);
936		1025
937	/* unwind main stack */	1026	/* unwind main stack */
938	dounwind (-1);	1027	dounwind (-1);
939	}	1028	}
		1029	}
940		1030
941	SvREFCNT_dec (GvSV (PL_defgv));	1031	static void
942	SvREFCNT_dec (GvAV (PL_defgv));	1032	coro_destruct_perl (pTHX_ struct coro *coro)
943	SvREFCNT_dec (GvSV (PL_errgv));	1033	{
944	SvREFCNT_dec (PL_defoutgv);	1034	SV *svf [9];
945	SvREFCNT_dec (PL_rs);
946	SvREFCNT_dec (GvSV (irsgv));
947		1035
948	SvREFCNT_dec (PL_diehook);
949	SvREFCNT_dec (PL_warnhook);
950		1036	{
		1037	struct coro *current = SvSTATE_current;
		1038
		1039	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1040
		1041	save_perl (aTHX_ current);
		1042	load_perl (aTHX_ coro);
		1043
		1044	coro_unwind_stacks (aTHX);
		1045	coro_destruct_stacks (aTHX);
		1046
		1047	// now save some sv's to be free'd later
		1048	svf [0] = GvSV (PL_defgv);
		1049	svf [1] = (SV *)GvAV (PL_defgv);
		1050	svf [2] = GvSV (PL_errgv);
		1051	svf [3] = (SV *)PL_defoutgv;
		1052	svf [4] = PL_rs;
		1053	svf [5] = GvSV (irsgv);
		1054	svf [6] = (SV *)GvHV (PL_hintgv);
		1055	svf [7] = PL_diehook;
		1056	svf [8] = PL_warnhook;
		1057	assert (9 == sizeof (svf) / sizeof (*svf));
		1058
		1059	load_perl (aTHX_ current);
		1060	}
		1061
		1062	{
		1063	unsigned int i;
		1064
		1065	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1066	SvREFCNT_dec (svf [i]);
		1067
951	SvREFCNT_dec (coro->saved_deffh);	1068	SvREFCNT_dec (coro->saved_deffh);
952	SvREFCNT_dec (coro->rouse_cb);	1069	SvREFCNT_dec (coro->rouse_cb);
953	SvREFCNT_dec (coro->invoke_cb);	1070	SvREFCNT_dec (coro->invoke_cb);
954	SvREFCNT_dec (coro->invoke_av);	1071	SvREFCNT_dec (coro->invoke_av);
955		1072	}
956	coro_destruct_stacks (aTHX);
957	}	1073	}
958		1074
959	INLINE void	1075	INLINE void
960	free_coro_mortal (pTHX)	1076	free_coro_mortal (pTHX)
961	{	1077	{
…		…
969	static int	1085	static int
970	runops_trace (pTHX)	1086	runops_trace (pTHX)
971	{	1087	{
972	COP *oldcop = 0;	1088	COP *oldcop = 0;
973	int oldcxix = -2;	1089	int oldcxix = -2;
974	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
975	coro_cctx *cctx = coro->cctx;
976		1090
977	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1091	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
978	{	1092	{
979	PERL_ASYNC_CHECK ();	1093	PERL_ASYNC_CHECK ();
980		1094
981	if (cctx->flags & CC_TRACE_ALL)	1095	if (cctx_current->flags & CC_TRACE_ALL)
982	{	1096	{
983	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1097	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
984	{	1098	{
985	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1099	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986	SV **bot, **top;	1100	SV **bot, **top;
987	AV *av = newAV (); /* return values */	1101	AV *av = newAV (); /* return values */
988	SV **cb;	1102	SV **cb;
…		…
1025		1139
1026	if (PL_curcop != &PL_compiling)	1140	if (PL_curcop != &PL_compiling)
1027	{	1141	{
1028	SV **cb;	1142	SV **cb;
1029		1143
1030	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1144	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1031	{	1145	{
1032	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1146	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1033		1147
1034	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1148	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1035	{	1149	{
…		…
1058	}	1172	}
1059		1173
1060	oldcxix = cxstack_ix;	1174	oldcxix = cxstack_ix;
1061	}	1175	}
1062		1176
1063	if (cctx->flags & CC_TRACE_LINE)	1177	if (cctx_current->flags & CC_TRACE_LINE)
1064	{	1178	{
1065	dSP;	1179	dSP;
1066		1180
1067	PL_runops = RUNOPS_DEFAULT;	1181	PL_runops = RUNOPS_DEFAULT;
1068	ENTER;	1182	ENTER;
…		…
1087		1201
1088	TAINT_NOT;	1202	TAINT_NOT;
1089	return 0;	1203	return 0;
1090	}	1204	}
1091		1205
1092	static struct coro_cctx *cctx_ssl_cctx;
1093	static struct CoroSLF cctx_ssl_frame;	1206	static struct CoroSLF cctx_ssl_frame;
1094		1207
1095	static void	1208	static void
1096	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1209	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1097	{	1210	{
1098	ta->prev = (struct coro *)cctx_ssl_cctx;
1099	ta->next = 0;	1211	ta->prev = 0;
1100	}	1212	}
1101		1213
1102	static int	1214	static int
1103	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1215	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1104	{	1216	{
…		…
1107	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */	1219	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1108	}	1220	}
1109		1221
1110	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */	1222	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1111	static void NOINLINE	1223	static void NOINLINE
1112	cctx_prepare (pTHX_ coro_cctx *cctx)	1224	cctx_prepare (pTHX)
1113	{	1225	{
1114	PL_top_env = &PL_start_env;	1226	PL_top_env = &PL_start_env;
1115		1227
1116	if (cctx->flags & CC_TRACE)	1228	if (cctx_current->flags & CC_TRACE)
1117	PL_runops = runops_trace;	1229	PL_runops = runops_trace;
1118		1230
1119	/* we already must be executing an SLF op, there is no other valid way	1231	/* we already must be executing an SLF op, there is no other valid way
1120	* that can lead to creation of a new cctx */	1232	* that can lead to creation of a new cctx */
1121	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1233	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1122	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1234	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1123		1235
1124	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */	1236	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1125	cctx_ssl_cctx = cctx;
1126	cctx_ssl_frame = slf_frame;	1237	cctx_ssl_frame = slf_frame;
1127		1238
1128	slf_frame.prepare = slf_prepare_set_stacklevel;	1239	slf_frame.prepare = slf_prepare_set_stacklevel;
1129	slf_frame.check = slf_check_set_stacklevel;	1240	slf_frame.check = slf_check_set_stacklevel;
1130	}	1241	}
…		…
1153	/* normally we would need to skip the entersub here */	1264	/* normally we would need to skip the entersub here */
1154	/* not doing so will re-execute it, which is exactly what we want */	1265	/* not doing so will re-execute it, which is exactly what we want */
1155	/* PL_nop = PL_nop->op_next */	1266	/* PL_nop = PL_nop->op_next */
1156		1267
1157	/* inject a fake subroutine call to cctx_init */	1268	/* inject a fake subroutine call to cctx_init */
1158	cctx_prepare (aTHX_ (coro_cctx *)arg);	1269	cctx_prepare (aTHX);
1159		1270
1160	/* cctx_run is the alternative tail of transfer() */	1271	/* cctx_run is the alternative tail of transfer() */
1161	transfer_tail (aTHX);	1272	transfer_tail (aTHX);
1162		1273
1163	/* somebody or something will hit me for both perl_run and PL_restartop */	1274	/* somebody or something will hit me for both perl_run and PL_restartop */
1164	PL_restartop = PL_op;	1275	PL_restartop = PL_op;
1165	perl_run (PL_curinterp);	1276	perl_run (PL_curinterp);
1166	/*	1277	/*
1167	* Unfortunately, there is no way to get at the return values of the	1278	* Unfortunately, there is no way to get at the return values of the
1168	* coro body here, as perl_run destroys these	1279	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1280	* runtime errors here, as this is just a random interpreter, not a thread.
1169	*/	1281	*/
1170		1282
1171	/*	1283	/*
1172	* If perl-run returns we assume exit() was being called or the coro	1284	* If perl-run returns we assume exit() was being called or the coro
1173	* fell off the end, which seems to be the only valid (non-bug)	1285	* fell off the end, which seems to be the only valid (non-bug)
1174	* reason for perl_run to return. We try to exit by jumping to the	1286	* reason for perl_run to return. We try to exit by jumping to the
1175	* bootstrap-time "top" top_env, as we cannot restore the "main"	1287	* bootstrap-time "top" top_env, as we cannot restore the "main"
1176	* coroutine as Coro has no such concept	1288	* coroutine as Coro has no such concept.
		1289	* This actually isn't valid with the pthread backend, but OSes requiring
		1290	* that backend are too broken to do it in a standards-compliant way.
1177	*/	1291	*/
1178	PL_top_env = main_top_env;	1292	PL_top_env = main_top_env;
1179	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1293	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1180	}	1294	}
1181	}	1295	}
…		…
1258	cctx_destroy (coro_cctx *cctx)	1372	cctx_destroy (coro_cctx *cctx)
1259	{	1373	{
1260	if (!cctx)	1374	if (!cctx)
1261	return;	1375	return;
1262		1376
		1377	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
		1378
1263	--cctx_count;	1379	--cctx_count;
1264	coro_destroy (&cctx->cctx);	1380	coro_destroy (&cctx->cctx);
1265		1381
1266	/* coro_transfer creates new, empty cctx's */	1382	/* coro_transfer creates new, empty cctx's */
1267	if (cctx->sptr)	1383	if (cctx->sptr)
…		…
1330	/* TODO: throwing up here is considered harmful */	1446	/* TODO: throwing up here is considered harmful */
1331		1447
1332	if (expect_true (prev != next))	1448	if (expect_true (prev != next))
1333	{	1449	{
1334	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1450	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1335	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1451	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1336		1452
1337	if (expect_false (next->flags & CF_RUNNING))
1338	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1339
1340	if (expect_false (next->flags & CF_DESTROYED))	1453	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1341	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1454	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1342		1455
1343	#if !PERL_VERSION_ATLEAST (5,10,0)	1456	#if !PERL_VERSION_ATLEAST (5,10,0)
1344	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1457	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1345	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1458	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1346	#endif	1459	#endif
…		…
1352	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1465	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1353	{	1466	{
1354	dSTACKLEVEL;	1467	dSTACKLEVEL;
1355		1468
1356	/* sometimes transfer is only called to set idle_sp */	1469	/* sometimes transfer is only called to set idle_sp */
1357	if (expect_false (!next))	1470	if (expect_false (!prev))
1358	{	1471	{
1359	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1472	cctx_current->idle_sp = STACKLEVEL;
1360	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1473	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1361	}	1474	}
1362	else if (expect_true (prev != next))	1475	else if (expect_true (prev != next))
1363	{	1476	{
1364	coro_cctx *prev__cctx;	1477	coro_cctx *cctx_prev;
1365		1478
1366	if (expect_false (prev->flags & CF_NEW))	1479	if (expect_false (prev->flags & CF_NEW))
1367	{	1480	{
1368	/* create a new empty/source context */	1481	/* create a new empty/source context */
1369	prev->cctx = cctx_new_empty ();
1370	prev->flags &= ~CF_NEW;	1482	prev->flags &= ~CF_NEW;
1371	prev->flags |= CF_RUNNING;	1483	prev->flags |= CF_RUNNING;
1372	}	1484	}
1373		1485
1374	prev->flags &= ~CF_RUNNING;	1486	prev->flags &= ~CF_RUNNING;
…		…
1385	coro_setup (aTHX_ next);	1497	coro_setup (aTHX_ next);
1386	}	1498	}
1387	else	1499	else
1388	load_perl (aTHX_ next);	1500	load_perl (aTHX_ next);
1389		1501
1390	prev__cctx = prev->cctx;
1391
1392	/* possibly untie and reuse the cctx */	1502	/* possibly untie and reuse the cctx */
1393	if (expect_true (	1503	if (expect_true (
1394	prev__cctx->idle_sp == STACKLEVEL	1504	cctx_current->idle_sp == STACKLEVEL
1395	&& !(prev__cctx->flags & CC_TRACE)	1505	&& !(cctx_current->flags & CC_TRACE)
1396	&& !force_cctx	1506	&& !force_cctx
1397	))	1507	))
1398	{	1508	{
1399	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1509	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1400	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1510	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1401		1511
1402	prev->cctx = 0;
1403
1404	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1512	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1405	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1513	/* without this the next cctx_get might destroy the running cctx while still in use */
1406	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1514	if (expect_false (CCTX_EXPIRED (cctx_current)))
1407	if (!next->cctx)	1515	if (expect_true (!next->cctx))
1408	next->cctx = cctx_get (aTHX);	1516	next->cctx = cctx_get (aTHX);
1409		1517
1410	cctx_put (prev__cctx);	1518	cctx_put (cctx_current);
1411	}	1519	}
		1520	else
		1521	prev->cctx = cctx_current;
1412		1522
1413	++next->usecount;	1523	++next->usecount;
1414		1524
1415	if (expect_true (!next->cctx))	1525	cctx_prev = cctx_current;
1416	next->cctx = cctx_get (aTHX);	1526	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1417		1527
1418	if (expect_false (prev__cctx != next->cctx))	1528	next->cctx = 0;
		1529
		1530	if (expect_false (cctx_prev != cctx_current))
1419	{	1531	{
1420	prev__cctx->top_env = PL_top_env;	1532	cctx_prev->top_env = PL_top_env;
1421	PL_top_env = next->cctx->top_env;	1533	PL_top_env = cctx_current->top_env;
1422	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1534	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1423	}	1535	}
1424		1536
1425	transfer_tail (aTHX);	1537	transfer_tail (aTHX);
1426	}	1538	}
1427	}	1539	}
…		…
1435	coro_state_destroy (pTHX_ struct coro *coro)	1547	coro_state_destroy (pTHX_ struct coro *coro)
1436	{	1548	{
1437	if (coro->flags & CF_DESTROYED)	1549	if (coro->flags & CF_DESTROYED)
1438	return 0;	1550	return 0;
1439		1551
1440	if (coro->on_destroy)	1552	if (coro->on_destroy && !PL_dirty)
1441	coro->on_destroy (aTHX_ coro);	1553	coro->on_destroy (aTHX_ coro);
1442		1554
1443	coro->flags |= CF_DESTROYED;	1555	coro->flags |= CF_DESTROYED;
1444		1556
1445	if (coro->flags & CF_READY)	1557	if (coro->flags & CF_READY)
…		…
1449	--coro_nready;	1561	--coro_nready;
1450	}	1562	}
1451	else	1563	else
1452	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1564	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1453		1565
1454	if (coro->mainstack && coro->mainstack != main_mainstack)	1566	if (coro->mainstack
1455	{	1567	&& coro->mainstack != main_mainstack
1456	struct coro temp;	1568	&& coro->slot
1457		1569	&& !PL_dirty)
1458	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1459
1460	save_perl (aTHX_ &temp);
1461	load_perl (aTHX_ coro);
1462
1463	coro_destruct (aTHX_ coro);	1570	coro_destruct_perl (aTHX_ coro);
1464
1465	load_perl (aTHX_ &temp);
1466
1467	coro->slot = 0;
1468	}
1469		1571
1470	cctx_destroy (coro->cctx);	1572	cctx_destroy (coro->cctx);
1471	SvREFCNT_dec (coro->startcv);	1573	SvREFCNT_dec (coro->startcv);
1472	SvREFCNT_dec (coro->args);	1574	SvREFCNT_dec (coro->args);
1473	SvREFCNT_dec (CORO_THROW);	1575	SvREFCNT_dec (CORO_THROW);
…		…
1532		1634
1533	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1635	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1534	TRANSFER (ta, 1);	1636	TRANSFER (ta, 1);
1535	}	1637	}
1536		1638
1537	/*****************************************************************************/
1538	/* gensub: simple closure generation utility */
1539
1540	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1541
1542	/* create a closure from XS, returns a code reference */
1543	/* the arg can be accessed via GENSUB_ARG from the callback */
1544	/* the callback must use dXSARGS/XSRETURN */
1545	static SV *
1546	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1547	{
1548	CV *cv = (CV *)newSV (0);
1549
1550	sv_upgrade ((SV *)cv, SVt_PVCV);
1551
1552	CvANON_on (cv);
1553	CvISXSUB_on (cv);
1554	CvXSUB (cv) = xsub;
1555	GENSUB_ARG = arg;
1556
1557	return newRV_noinc ((SV *)cv);
1558	}
1559
1560	/** Coro ********************************************************************/	1639	/** Coro ********************************************************************/
1561		1640
1562	INLINE void	1641	INLINE void
1563	coro_enq (pTHX_ struct coro *coro)	1642	coro_enq (pTHX_ struct coro *coro)
1564	{	1643	{
1565	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1644	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1566	}
1567		1645
1568	INLINE SV *	1646	SvREFCNT_inc_NN (coro->hv);
		1647
		1648	coro->next_ready = 0;
		1649	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1650	ready [1] = coro;
		1651	}
		1652
		1653	INLINE struct coro *
1569	coro_deq (pTHX)	1654	coro_deq (pTHX)
1570	{	1655	{
1571	int prio;	1656	int prio;
1572		1657
1573	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1658	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1574	if (AvFILLp (coro_ready [prio]) >= 0)	1659	{
1575	return av_shift (coro_ready [prio]);	1660	struct coro **ready = coro_ready [prio];
		1661
		1662	if (ready [0])
		1663	{
		1664	struct coro *coro = ready [0];
		1665	ready [0] = coro->next_ready;
		1666	return coro;
		1667	}
		1668	}
1576		1669
1577	return 0;	1670	return 0;
		1671	}
		1672
		1673	static void
		1674	invoke_sv_ready_hook_helper (void)
		1675	{
		1676	dTHX;
		1677	dSP;
		1678
		1679	ENTER;
		1680	SAVETMPS;
		1681
		1682	PUSHMARK (SP);
		1683	PUTBACK;
		1684	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1685
		1686	FREETMPS;
		1687	LEAVE;
1578	}	1688	}
1579		1689
1580	static int	1690	static int
1581	api_ready (pTHX_ SV *coro_sv)	1691	api_ready (pTHX_ SV *coro_sv)
1582	{	1692	{
1583	struct coro *coro;
1584	SV *sv_hook;
1585	void (*xs_hook)(void);
1586
1587	if (SvROK (coro_sv))
1588	coro_sv = SvRV (coro_sv);
1589
1590	coro = SvSTATE (coro_sv);	1693	struct coro *coro = SvSTATE (coro_sv);
1591		1694
1592	if (coro->flags & CF_READY)	1695	if (coro->flags & CF_READY)
1593	return 0;	1696	return 0;
1594		1697
1595	coro->flags |= CF_READY;	1698	coro->flags |= CF_READY;
1596		1699
1597	sv_hook = coro_nready ? 0 : coro_readyhook;
1598	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1599
1600	coro_enq (aTHX_ coro);	1700	coro_enq (aTHX_ coro);
1601	++coro_nready;
1602		1701
1603	if (sv_hook)	1702	if (!coro_nready++)
1604	{	1703	if (coroapi.readyhook)
1605	dSP;	1704	coroapi.readyhook ();
1606
1607	ENTER;
1608	SAVETMPS;
1609
1610	PUSHMARK (SP);
1611	PUTBACK;
1612	call_sv (sv_hook, G_VOID | G_DISCARD);
1613
1614	FREETMPS;
1615	LEAVE;
1616	}
1617
1618	if (xs_hook)
1619	xs_hook ();
1620		1705
1621	return 1;	1706	return 1;
1622	}	1707	}
1623		1708
1624	static int	1709	static int
…		…
1647	static void	1732	static void
1648	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1733	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1649	{	1734	{
1650	for (;;)	1735	for (;;)
1651	{	1736	{
1652	SV *next_sv = coro_deq (aTHX);	1737	struct coro *next = coro_deq (aTHX);
1653		1738
1654	if (expect_true (next_sv))	1739	if (expect_true (next))
1655	{	1740	{
1656	struct coro *next = SvSTATE_hv (next_sv);
1657
1658	/* cannot transfer to destroyed coros, skip and look for next */	1741	/* cannot transfer to destroyed coros, skip and look for next */
1659	if (expect_false (next->flags & CF_DESTROYED))	1742	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1660	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1743	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1661	else	1744	else
1662	{	1745	{
1663	next->flags &= ~CF_READY;	1746	next->flags &= ~CF_READY;
1664	--coro_nready;	1747	--coro_nready;
1665		1748
…		…
1668	}	1751	}
1669	}	1752	}
1670	else	1753	else
1671	{	1754	{
1672	/* nothing to schedule: call the idle handler */	1755	/* nothing to schedule: call the idle handler */
		1756	if (SvROK (sv_idle)
		1757	&& SvOBJECT (SvRV (sv_idle)))
		1758	{
		1759	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1760	api_ready (aTHX_ SvRV (sv_idle));
		1761	--coro_nready;
		1762	}
		1763	else
		1764	{
		1765	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1673	dSP;	1766	dSP;
1674		1767
1675	ENTER;	1768	ENTER;
1676	SAVETMPS;	1769	SAVETMPS;
1677		1770
1678	PUSHMARK (SP);	1771	PUSHMARK (SP);
1679	PUTBACK;	1772	PUTBACK;
1680	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1773	call_sv (sv_idle, G_VOID | G_DISCARD);
1681		1774
1682	FREETMPS;	1775	FREETMPS;
1683	LEAVE;	1776	LEAVE;
		1777	}
1684	}	1778	}
1685	}	1779	}
1686	}	1780	}
1687		1781
1688	INLINE void	1782	INLINE void
…		…
1759	static void	1853	static void
1760	api_trace (pTHX_ SV *coro_sv, int flags)	1854	api_trace (pTHX_ SV *coro_sv, int flags)
1761	{	1855	{
1762	struct coro *coro = SvSTATE (coro_sv);	1856	struct coro *coro = SvSTATE (coro_sv);
1763		1857
		1858	if (coro->flags & CF_RUNNING)
		1859	croak ("cannot enable tracing on a running coroutine, caught");
		1860
1764	if (flags & CC_TRACE)	1861	if (flags & CC_TRACE)
1765	{	1862	{
1766	if (!coro->cctx)	1863	if (!coro->cctx)
1767	coro->cctx = cctx_new_run ();	1864	coro->cctx = cctx_new_run ();
1768	else if (!(coro->cctx->flags & CC_TRACE))	1865	else if (!(coro->cctx->flags & CC_TRACE))
1769	croak ("cannot enable tracing on coroutine with custom stack,");	1866	croak ("cannot enable tracing on coroutine with custom stack, caught");
1770		1867
1771	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1868	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1772	}	1869	}
1773	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1870	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1774	{	1871	{
…		…
1819	{	1916	{
1820	int i;	1917	int i;
1821	HV *hv = (HV *)SvRV (coro_current);	1918	HV *hv = (HV *)SvRV (coro_current);
1822	AV *av = newAV ();	1919	AV *av = newAV ();
1823		1920
		1921	/* items are actually not so common, so optimise for this case */
		1922	if (items)
		1923	{
1824	av_extend (av, items - 1);	1924	av_extend (av, items - 1);
		1925
1825	for (i = 0; i < items; ++i)	1926	for (i = 0; i < items; ++i)
1826	av_push (av, SvREFCNT_inc_NN (arg [i]));	1927	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1928	}
1827		1929
1828	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	1930	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1829		1931
1830	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	1932	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1831	api_ready (aTHX_ sv_manager);	1933	api_ready (aTHX_ sv_manager);
1832		1934
1833	frame->prepare = prepare_schedule;	1935	frame->prepare = prepare_schedule;
1834	frame->check = slf_check_repeat;	1936	frame->check = slf_check_repeat;
		1937
		1938	/* as a minor optimisation, we could unwind all stacks here */
		1939	/* but that puts extra pressure on pp_slf, and is not worth much */
		1940	/*coro_unwind_stacks (aTHX);*/
1835	}	1941	}
1836		1942
1837	/*****************************************************************************/	1943	/*****************************************************************************/
1838	/* async pool handler */	1944	/* async pool handler */
1839		1945
…		…
1917		2023
1918	static void	2024	static void
1919	coro_rouse_callback (pTHX_ CV *cv)	2025	coro_rouse_callback (pTHX_ CV *cv)
1920	{	2026	{
1921	dXSARGS;	2027	dXSARGS;
1922	SV *data = (SV *)GENSUB_ARG;	2028	SV *data = (SV *)S_GENSUB_ARG;
1923		2029
1924	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2030	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1925	{	2031	{
1926	/* first call, set args */	2032	/* first call, set args */
		2033	SV *coro = SvRV (data);
1927	AV *av = newAV ();	2034	AV *av = newAV ();
1928	SV *coro = SvRV (data);
1929		2035
1930	SvRV_set (data, (SV *)av);	2036	SvRV_set (data, (SV *)av);
1931	api_ready (aTHX_ coro);
1932	SvREFCNT_dec (coro);
1933		2037
1934	/* better take a full copy of the arguments */	2038	/* better take a full copy of the arguments */
1935	while (items--)	2039	while (items--)
1936	av_store (av, items, newSVsv (ST (items)));	2040	av_store (av, items, newSVsv (ST (items)));
		2041
		2042	api_ready (aTHX_ coro);
		2043	SvREFCNT_dec (coro);
1937	}	2044	}
1938		2045
1939	XSRETURN_EMPTY;	2046	XSRETURN_EMPTY;
1940	}	2047	}
1941		2048
…		…
1958		2065
1959	EXTEND (SP, AvFILLp (av) + 1);	2066	EXTEND (SP, AvFILLp (av) + 1);
1960	for (i = 0; i <= AvFILLp (av); ++i)	2067	for (i = 0; i <= AvFILLp (av); ++i)
1961	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2068	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1962		2069
1963	/* we have stolen the elements, so ste length to zero and free */	2070	/* we have stolen the elements, so set length to zero and free */
1964	AvFILLp (av) = -1;	2071	AvFILLp (av) = -1;
1965	av_undef (av);	2072	av_undef (av);
1966		2073
1967	PUTBACK;	2074	PUTBACK;
1968	}	2075	}
…		…
1992	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2099	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1993	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2100	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1994	croak ("Coro::rouse_wait called with illegal callback argument,");	2101	croak ("Coro::rouse_wait called with illegal callback argument,");
1995		2102
1996	{	2103	{
1997	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2104	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1998	SV *data = (SV *)GENSUB_ARG;	2105	SV *data = (SV *)S_GENSUB_ARG;
1999		2106
2000	frame->data = (void *)data;	2107	frame->data = (void *)data;
2001	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2108	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2002	frame->check = slf_check_rouse_wait;	2109	frame->check = slf_check_rouse_wait;
2003	}	2110	}
…		…
2007	coro_new_rouse_cb (pTHX)	2114	coro_new_rouse_cb (pTHX)
2008	{	2115	{
2009	HV *hv = (HV *)SvRV (coro_current);	2116	HV *hv = (HV *)SvRV (coro_current);
2010	struct coro *coro = SvSTATE_hv (hv);	2117	struct coro *coro = SvSTATE_hv (hv);
2011	SV *data = newRV_inc ((SV *)hv);	2118	SV *data = newRV_inc ((SV *)hv);
2012	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2119	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2013		2120
2014	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2121	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2015	SvREFCNT_dec (data); /* magicext increases the refcount */	2122	SvREFCNT_dec (data); /* magicext increases the refcount */
2016		2123
2017	SvREFCNT_dec (coro->rouse_cb);	2124	SvREFCNT_dec (coro->rouse_cb);
…		…
2224	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]	2331	if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
2225	&& PL_op->op_ppaddr != pp_slf)	2332	&& PL_op->op_ppaddr != pp_slf)
2226	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");	2333	croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
2227		2334
2228	CvFLAGS (cv) |= CVf_SLF;	2335	CvFLAGS (cv) |= CVf_SLF;
		2336	CvNODEBUG_on (cv);
2229	CvXSUBANY (cv).any_ptr = (void *)init_cb;	2337	CvXSUBANY (cv).any_ptr = (void *)init_cb;
2230	slf_cv = cv;	2338	slf_cv = cv;
2231		2339
2232	/* we patch the op, and then re-run the whole call */	2340	/* we patch the op, and then re-run the whole call */
2233	/* we have to put the same argument on the stack for this to work */	2341	/* we have to put the same argument on the stack for this to work */
…		…
2258		2366
2259	PL_op->op_ppaddr = pp_slf;	2367	PL_op->op_ppaddr = pp_slf;
2260	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2368	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2261		2369
2262	PL_op = (OP *)&slf_restore;	2370	PL_op = (OP *)&slf_restore;
		2371	}
		2372
		2373	/*****************************************************************************/
		2374	/* dynamic wind */
		2375
		2376	static void
		2377	on_enterleave_call (pTHX_ SV *cb)
		2378	{
		2379	dSP;
		2380
		2381	PUSHSTACK;
		2382
		2383	PUSHMARK (SP);
		2384	PUTBACK;
		2385	call_sv (cb, G_VOID | G_DISCARD);
		2386	SPAGAIN;
		2387
		2388	POPSTACK;
		2389	}
		2390
		2391	static SV *
		2392	coro_avp_pop_and_free (pTHX_ AV **avp)
		2393	{
		2394	AV *av = *avp;
		2395	SV *res = av_pop (av);
		2396
		2397	if (AvFILLp (av) < 0)
		2398	{
		2399	*avp = 0;
		2400	SvREFCNT_dec (av);
		2401	}
		2402
		2403	return res;
		2404	}
		2405
		2406	static void
		2407	coro_pop_on_enter (pTHX_ void *coro)
		2408	{
		2409	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2410	SvREFCNT_dec (cb);
		2411	}
		2412
		2413	static void
		2414	coro_pop_on_leave (pTHX_ void *coro)
		2415	{
		2416	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2417	on_enterleave_call (aTHX_ sv_2mortal (cb));
2263	}	2418	}
2264		2419
2265	/*****************************************************************************/	2420	/*****************************************************************************/
2266	/* PerlIO::cede */	2421	/* PerlIO::cede */
2267		2422
…		…
2341	/* Coro::Semaphore & Coro::Signal */	2496	/* Coro::Semaphore & Coro::Signal */
2342		2497
2343	static SV *	2498	static SV *
2344	coro_waitarray_new (pTHX_ int count)	2499	coro_waitarray_new (pTHX_ int count)
2345	{	2500	{
2346	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2501	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2347	AV *av = newAV ();	2502	AV *av = newAV ();
2348	SV **ary;	2503	SV **ary;
2349		2504
2350	/* unfortunately, building manually saves memory */	2505	/* unfortunately, building manually saves memory */
2351	Newx (ary, 2, SV *);	2506	Newx (ary, 2, SV *);
2352	AvALLOC (av) = ary;	2507	AvALLOC (av) = ary;
		2508	#if PERL_VERSION_ATLEAST (5,10,0)
2353	/*AvARRAY (av) = ary;*/	2509	AvARRAY (av) = ary;
		2510	#else
2354	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2511	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2512	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2513	SvPVX ((SV *)av) = (char *)ary;
		2514	#endif
2355	AvMAX (av) = 1;	2515	AvMAX (av) = 1;
2356	AvFILLp (av) = 0;	2516	AvFILLp (av) = 0;
2357	ary [0] = newSViv (count);	2517	ary [0] = newSViv (count);
2358		2518
2359	return newRV_noinc ((SV *)av);	2519	return newRV_noinc ((SV *)av);
…		…
2488	{	2648	{
2489	if (items >= 2)	2649	if (items >= 2)
2490	{	2650	{
2491	/* callback form */	2651	/* callback form */
2492	AV *av = (AV *)SvRV (arg [0]);	2652	AV *av = (AV *)SvRV (arg [0]);
2493	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2653	SV *cb_cv = s_get_cv_croak (arg [1]);
2494		2654
2495	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2655	av_push (av, SvREFCNT_inc_NN (cb_cv));
2496		2656
2497	if (SvIVX (AvARRAY (av)[0]) > 0)	2657	if (SvIVX (AvARRAY (av)[0]) > 0)
2498	coro_semaphore_adjust (aTHX_ av, 0);	2658	coro_semaphore_adjust (aTHX_ av, 0);
2499		2659
2500	frame->prepare = prepare_nop;	2660	frame->prepare = prepare_nop;
…		…
2524	AvARRAY (av)[0] = AvARRAY (av)[1];	2684	AvARRAY (av)[0] = AvARRAY (av)[1];
2525	AvARRAY (av)[1] = cb;	2685	AvARRAY (av)[1] = cb;
2526		2686
2527	cb = av_shift (av);	2687	cb = av_shift (av);
2528		2688
		2689	if (SvTYPE (cb) == SVt_PVCV)
		2690	{
		2691	dSP;
		2692	PUSHMARK (SP);
		2693	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2694	PUTBACK;
		2695	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2696	}
		2697	else
		2698	{
2529	api_ready (aTHX_ cb);	2699	api_ready (aTHX_ cb);
2530	sv_setiv (cb, 0); /* signal waiter */	2700	sv_setiv (cb, 0); /* signal waiter */
		2701	}
		2702
2531	SvREFCNT_dec (cb);	2703	SvREFCNT_dec (cb);
2532		2704
2533	--count;	2705	--count;
2534	}	2706	}
2535	}	2707	}
…		…
2544	static void	2716	static void
2545	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2717	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2546	{	2718	{
2547	AV *av = (AV *)SvRV (arg [0]);	2719	AV *av = (AV *)SvRV (arg [0]);
2548		2720
		2721	if (items >= 2)
		2722	{
		2723	SV *cb_cv = s_get_cv_croak (arg [1]);
		2724	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2725
2549	if (SvIVX (AvARRAY (av)[0]))	2726	if (SvIVX (AvARRAY (av)[0]))
		2727	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
		2728
		2729	frame->prepare = prepare_nop;
		2730	frame->check = slf_check_nop;
		2731	}
		2732	else if (SvIVX (AvARRAY (av)[0]))
2550	{	2733	{
2551	SvIVX (AvARRAY (av)[0]) = 0;	2734	SvIVX (AvARRAY (av)[0]) = 0;
2552	frame->prepare = prepare_nop;	2735	frame->prepare = prepare_nop;
2553	frame->check = slf_check_nop;	2736	frame->check = slf_check_nop;
2554	}	2737	}
2555	else	2738	else
2556	{	2739	{
2557	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2740	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2558		2741
2559	av_push (av, waiter);	2742	av_push (av, waiter);
2560		2743
2561	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2744	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2562	frame->prepare = prepare_schedule;	2745	frame->prepare = prepare_schedule;
…		…
2580		2763
2581	static void	2764	static void
2582	coro_aio_callback (pTHX_ CV *cv)	2765	coro_aio_callback (pTHX_ CV *cv)
2583	{	2766	{
2584	dXSARGS;	2767	dXSARGS;
2585	AV *state = (AV *)GENSUB_ARG;	2768	AV *state = (AV *)S_GENSUB_ARG;
2586	SV *coro = av_pop (state);	2769	SV *coro = av_pop (state);
2587	SV *data_sv = newSV (sizeof (struct io_state));	2770	SV *data_sv = newSV (sizeof (struct io_state));
2588		2771
2589	av_extend (state, items - 1);	2772	av_extend (state, items - 1);
2590		2773
…		…
2704		2887
2705	for (i = 0; i < items; ++i)	2888	for (i = 0; i < items; ++i)
2706	PUSHs (arg [i]);	2889	PUSHs (arg [i]);
2707		2890
2708	/* now push the callback closure */	2891	/* now push the callback closure */
2709	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	2892	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2710		2893
2711	/* now call the AIO function - we assume our request is uncancelable */	2894	/* now call the AIO function - we assume our request is uncancelable */
2712	PUTBACK;	2895	PUTBACK;
2713	call_sv ((SV *)req, G_VOID | G_DISCARD);	2896	call_sv ((SV *)req, G_VOID | G_DISCARD);
2714	}	2897	}
…		…
2732	/*****************************************************************************/	2915	/*****************************************************************************/
2733		2916
2734	#if CORO_CLONE	2917	#if CORO_CLONE
2735	# include "clone.c"	2918	# include "clone.c"
2736	#endif	2919	#endif
		2920
		2921	/*****************************************************************************/
		2922
		2923	static SV *
		2924	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		2925	{
		2926	SV *coro_sv;
		2927	struct coro *coro;
		2928	MAGIC *mg;
		2929	HV *hv;
		2930	SV *cb;
		2931	int i;
		2932
		2933	if (argc > 0)
		2934	{
		2935	cb = s_get_cv_croak (argv [0]);
		2936
		2937	if (!is_coro)
		2938	{
		2939	if (CvISXSUB (cb))
		2940	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2941
		2942	if (!CvROOT (cb))
		2943	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2944	}
		2945	}
		2946
		2947	Newz (0, coro, 1, struct coro);
		2948	coro->args = newAV ();
		2949	coro->flags = CF_NEW;
		2950
		2951	if (coro_first) coro_first->prev = coro;
		2952	coro->next = coro_first;
		2953	coro_first = coro;
		2954
		2955	coro->hv = hv = newHV ();
		2956	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		2957	mg->mg_flags |= MGf_DUP;
		2958	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		2959
		2960	if (argc > 0)
		2961	{
		2962	av_extend (coro->args, argc + is_coro - 1);
		2963
		2964	if (is_coro)
		2965	{
		2966	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2967	cb = (SV *)cv_coro_run;
		2968	}
		2969
		2970	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2971
		2972	for (i = 1; i < argc; i++)
		2973	av_push (coro->args, newSVsv (argv [i]));
		2974	}
		2975
		2976	return coro_sv;
		2977	}
2737		2978
2738	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2979	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2739		2980
2740	PROTOTYPES: DISABLE	2981	PROTOTYPES: DISABLE
2741		2982
…		…
2746	coro_thx = PERL_GET_CONTEXT;	2987	coro_thx = PERL_GET_CONTEXT;
2747	# endif	2988	# endif
2748	#endif	2989	#endif
2749	BOOT_PAGESIZE;	2990	BOOT_PAGESIZE;
2750		2991
		2992	cctx_current = cctx_new_empty ();
		2993
2751	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2994	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2752	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2995	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2753		2996
2754	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2997	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2755	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2998	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2799		3042
2800	if (!svp) croak ("Time::HiRes is required");	3043	if (!svp) croak ("Time::HiRes is required");
2801	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");	3044	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2802		3045
2803	nvtime = INT2PTR (double (*)(), SvIV (*svp));	3046	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		3047
		3048	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		3049	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2804	}	3050	}
2805		3051
2806	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3052	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2807	}	3053	}
2808		3054
2809	SV *	3055	SV *
2810	new (char *klass, ...)	3056	new (SV *klass, ...)
2811	ALIAS:	3057	ALIAS:
2812	Coro::new = 1	3058	Coro::new = 1
2813	CODE:	3059	CODE:
2814	{	3060	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2815	struct coro *coro;	3061	OUTPUT:
2816	MAGIC *mg;
2817	HV *hv;
2818	CV *cb;
2819	int i;
2820
2821	if (items > 1)
2822	{
2823	cb = coro_sv_2cv (aTHX_ ST (1));
2824
2825	if (!ix)
2826	{
2827	if (CvISXSUB (cb))
2828	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2829
2830	if (!CvROOT (cb))
2831	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2832	}
2833	}
2834
2835	Newz (0, coro, 1, struct coro);
2836	coro->args = newAV ();
2837	coro->flags = CF_NEW;
2838
2839	if (coro_first) coro_first->prev = coro;
2840	coro->next = coro_first;
2841	coro_first = coro;
2842
2843	coro->hv = hv = newHV ();
2844	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2845	mg->mg_flags |= MGf_DUP;
2846	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2847
2848	if (items > 1)
2849	{
2850	av_extend (coro->args, items - 1 + ix - 1);
2851
2852	if (ix)
2853	{
2854	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2855	cb = cv_coro_run;
2856	}
2857
2858	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2859
2860	for (i = 2; i < items; i++)
2861	av_push (coro->args, newSVsv (ST (i)));
2862	}
2863	}
2864	OUTPUT:
2865	RETVAL	3062	RETVAL
2866		3063
2867	void	3064	void
2868	transfer (...)	3065	transfer (...)
2869	PROTOTYPE: $$	3066	PROTOTYPE: $$
…		…
2881	_exit (int code)	3078	_exit (int code)
2882	PROTOTYPE: $	3079	PROTOTYPE: $
2883	CODE:	3080	CODE:
2884	_exit (code);	3081	_exit (code);
2885		3082
2886	#if CORO_CLONE
2887
2888	SV *	3083	SV *
2889	clone (Coro::State coro)	3084	clone (Coro::State coro)
2890	CODE:	3085	CODE:
2891	{	3086	{
		3087	#if CORO_CLONE
2892	struct coro *ncoro = coro_clone (coro);	3088	struct coro *ncoro = coro_clone (aTHX_ coro);
2893	MAGIC *mg;	3089	MAGIC *mg;
2894	/* TODO: too much duplication */	3090	/* TODO: too much duplication */
2895	ncoro->hv = newHV ();	3091	ncoro->hv = newHV ();
2896	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3092	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897	mg->mg_flags |= MGf_DUP;	3093	mg->mg_flags |= MGf_DUP;
2898	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));	3094	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		3095	#else
		3096	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		3097	#endif
2899	}	3098	}
2900	OUTPUT:	3099	OUTPUT:
2901	RETVAL	3100	RETVAL
2902
2903	#endif
2904		3101
2905	int	3102	int
2906	cctx_stacksize (int new_stacksize = 0)	3103	cctx_stacksize (int new_stacksize = 0)
2907	PROTOTYPE: ;$	3104	PROTOTYPE: ;$
2908	CODE:	3105	CODE:
…		…
2958	eval = 1	3155	eval = 1
2959	CODE:	3156	CODE:
2960	{	3157	{
2961	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3158	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2962	{	3159	{
2963	struct coro temp;	3160	struct coro *current = SvSTATE_current;
2964		3161
2965	if (!(coro->flags & CF_RUNNING))	3162	if (current != coro)
2966	{	3163	{
2967	PUTBACK;	3164	PUTBACK;
2968	save_perl (aTHX_ &temp);	3165	save_perl (aTHX_ current);
2969	load_perl (aTHX_ coro);	3166	load_perl (aTHX_ coro);
		3167	SPAGAIN;
2970	}	3168	}
2971		3169
2972	{
2973	dSP;
2974	ENTER;
2975	SAVETMPS;
2976	PUTBACK;
2977	PUSHSTACK;	3170	PUSHSTACK;
		3171
2978	PUSHMARK (SP);	3172	PUSHMARK (SP);
		3173	PUTBACK;
2979		3174
2980	if (ix)	3175	if (ix)
2981	eval_sv (coderef, 0);	3176	eval_sv (coderef, 0);
2982	else	3177	else
2983	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3178	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2984		3179
2985	POPSTACK;	3180	POPSTACK;
2986	SPAGAIN;	3181	SPAGAIN;
2987	FREETMPS;
2988	LEAVE;
2989	PUTBACK;
2990	}
2991		3182
2992	if (!(coro->flags & CF_RUNNING))	3183	if (current != coro)
2993	{	3184	{
		3185	PUTBACK;
2994	save_perl (aTHX_ coro);	3186	save_perl (aTHX_ coro);
2995	load_perl (aTHX_ &temp);	3187	load_perl (aTHX_ current);
2996	SPAGAIN;	3188	SPAGAIN;
2997	}	3189	}
2998	}	3190	}
2999	}	3191	}
3000		3192
…		…
3004	ALIAS:	3196	ALIAS:
3005	is_ready = CF_READY	3197	is_ready = CF_READY
3006	is_running = CF_RUNNING	3198	is_running = CF_RUNNING
3007	is_new = CF_NEW	3199	is_new = CF_NEW
3008	is_destroyed = CF_DESTROYED	3200	is_destroyed = CF_DESTROYED
		3201	is_suspended = CF_SUSPENDED
3009	CODE:	3202	CODE:
3010	RETVAL = boolSV (coro->flags & ix);	3203	RETVAL = boolSV (coro->flags & ix);
3011	OUTPUT:	3204	OUTPUT:
3012	RETVAL	3205	RETVAL
3013		3206
…		…
3017	CODE:	3210	CODE:
3018	{	3211	{
3019	struct coro *current = SvSTATE_current;	3212	struct coro *current = SvSTATE_current;
3020	SV **throwp = self == current ? &CORO_THROW : &self->except;	3213	SV **throwp = self == current ? &CORO_THROW : &self->except;
3021	SvREFCNT_dec (*throwp);	3214	SvREFCNT_dec (*throwp);
		3215	SvGETMAGIC (throw);
3022	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3216	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
3023	}	3217	}
3024		3218
3025	void	3219	void
3026	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3220	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
…		…
3029		3223
3030	SV *	3224	SV *
3031	has_cctx (Coro::State coro)	3225	has_cctx (Coro::State coro)
3032	PROTOTYPE: $	3226	PROTOTYPE: $
3033	CODE:	3227	CODE:
3034	RETVAL = boolSV (!!coro->cctx);	3228	/* maybe manage the running flag differently */
		3229	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3035	OUTPUT:	3230	OUTPUT:
3036	RETVAL	3231	RETVAL
3037		3232
3038	int	3233	int
3039	is_traced (Coro::State coro)	3234	is_traced (Coro::State coro)
…		…
3059		3254
3060	void	3255	void
3061	force_cctx ()	3256	force_cctx ()
3062	PROTOTYPE:	3257	PROTOTYPE:
3063	CODE:	3258	CODE:
3064	SvSTATE_current->cctx->idle_sp = 0;	3259	cctx_current->idle_sp = 0;
3065		3260
3066	void	3261	void
3067	swap_defsv (Coro::State self)	3262	swap_defsv (Coro::State self)
3068	PROTOTYPE: $	3263	PROTOTYPE: $
3069	ALIAS:	3264	ALIAS:
…		…
3077	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3272	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3078		3273
3079	SV *tmp = *src; *src = *dst; *dst = tmp;	3274	SV *tmp = *src; *src = *dst; *dst = tmp;
3080	}	3275	}
3081		3276
		3277	void
		3278	cancel (Coro::State self)
		3279	CODE:
		3280	coro_state_destroy (aTHX_ self);
		3281	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3282
		3283
		3284	SV *
		3285	enable_times (int enabled = enable_times)
		3286	CODE:
		3287	{
		3288	RETVAL = boolSV (enable_times);
		3289
		3290	if (enabled != enable_times)
		3291	{
		3292	enable_times = enabled;
		3293
		3294	coro_times_update ();
		3295	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3296	}
		3297	}
		3298	OUTPUT:
		3299	RETVAL
		3300
		3301	void
		3302	times (Coro::State self)
		3303	PPCODE:
		3304	{
		3305	struct coro *current = SvSTATE (coro_current);
		3306
		3307	if (expect_false (current == self))
		3308	{
		3309	coro_times_update ();
		3310	coro_times_add (SvSTATE (coro_current));
		3311	}
		3312
		3313	EXTEND (SP, 2);
		3314	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3315	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3316
		3317	if (expect_false (current == self))
		3318	coro_times_sub (SvSTATE (coro_current));
		3319	}
3082		3320
3083	MODULE = Coro::State PACKAGE = Coro	3321	MODULE = Coro::State PACKAGE = Coro
3084		3322
3085	BOOT:	3323	BOOT:
3086	{	3324	{
3087	int i;
3088
3089	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3325	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3090	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3326	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3091	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3327	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3092	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3328	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3093	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3329	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3094	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3330	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3095	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3331	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3096	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3332	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3333	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3097		3334
3098	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3335	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3099	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3336	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3100	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3337	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3101	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3338	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3102		3339
3103	coro_stash = gv_stashpv ("Coro", TRUE);	3340	coro_stash = gv_stashpv ("Coro", TRUE);
3104		3341
3105	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3342	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3106	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3343	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3107	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3344	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3108	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3345	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3109	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3346	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3110	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3347	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3111
3112	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3113	coro_ready[i] = newAV ();
3114		3348
3115	{	3349	{
3116	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3350	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3117		3351
3118	coroapi.schedule = api_schedule;	3352	coroapi.schedule = api_schedule;
…		…
3128	sv_setiv (sv, (IV)&coroapi);	3362	sv_setiv (sv, (IV)&coroapi);
3129	SvREADONLY_on (sv);	3363	SvREADONLY_on (sv);
3130	}	3364	}
3131	}	3365	}
3132		3366
		3367	SV *
		3368	async (...)
		3369	PROTOTYPE: &@
		3370	CODE:
		3371	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3372	api_ready (aTHX_ RETVAL);
		3373	OUTPUT:
		3374	RETVAL
		3375
3133	void	3376	void
3134	terminate (...)	3377	terminate (...)
3135	CODE:	3378	CODE:
3136	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3379	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3137		3380
…		…
3157		3400
3158	void	3401	void
3159	cede_notself (...)	3402	cede_notself (...)
3160	CODE:	3403	CODE:
3161	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3404	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3162
3163	void
3164	_cancel (Coro::State self)
3165	CODE:
3166	coro_state_destroy (aTHX_ self);
3167	coro_call_on_destroy (aTHX_ self);
3168		3405
3169	void	3406	void
3170	_set_current (SV *current)	3407	_set_current (SV *current)
3171	PROTOTYPE: $	3408	PROTOTYPE: $
3172	CODE:	3409	CODE:
…		…
3176	void	3413	void
3177	_set_readyhook (SV *hook)	3414	_set_readyhook (SV *hook)
3178	PROTOTYPE: $	3415	PROTOTYPE: $
3179	CODE:	3416	CODE:
3180	SvREFCNT_dec (coro_readyhook);	3417	SvREFCNT_dec (coro_readyhook);
		3418	SvGETMAGIC (hook);
		3419	if (SvOK (hook))
		3420	{
3181	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3421	coro_readyhook = newSVsv (hook);
		3422	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3423	}
		3424	else
		3425	{
		3426	coro_readyhook = 0;
		3427	CORO_READYHOOK = 0;
		3428	}
3182		3429
3183	int	3430	int
3184	prio (Coro::State coro, int newprio = 0)	3431	prio (Coro::State coro, int newprio = 0)
3185	PROTOTYPE: $;$	3432	PROTOTYPE: $;$
3186	ALIAS:	3433	ALIAS:
…		…
3192	if (items > 1)	3439	if (items > 1)
3193	{	3440	{
3194	if (ix)	3441	if (ix)
3195	newprio = coro->prio - newprio;	3442	newprio = coro->prio - newprio;
3196		3443
3197	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3444	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3198	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3445	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3199		3446
3200	coro->prio = newprio;	3447	coro->prio = newprio;
3201	}	3448	}
3202	}	3449	}
3203	OUTPUT:	3450	OUTPUT:
…		…
3218	RETVAL = coro_nready;	3465	RETVAL = coro_nready;
3219	OUTPUT:	3466	OUTPUT:
3220	RETVAL	3467	RETVAL
3221		3468
3222	void	3469	void
		3470	suspend (Coro::State self)
		3471	PROTOTYPE: $
		3472	CODE:
		3473	self->flags |= CF_SUSPENDED;
		3474
		3475	void
		3476	resume (Coro::State self)
		3477	PROTOTYPE: $
		3478	CODE:
		3479	self->flags &= ~CF_SUSPENDED;
		3480
		3481	void
3223	_pool_handler (...)	3482	_pool_handler (...)
3224	CODE:	3483	CODE:
3225	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3484	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3226		3485
3227	void	3486	void
…		…
3238	for (i = 1; i < items; ++i)	3497	for (i = 1; i < items; ++i)
3239	av_push (av, SvREFCNT_inc_NN (ST (i)));	3498	av_push (av, SvREFCNT_inc_NN (ST (i)));
3240		3499
3241	if ((SV *)hv == &PL_sv_undef)	3500	if ((SV *)hv == &PL_sv_undef)
3242	{	3501	{
3243	PUSHMARK (SP);	3502	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3244	EXTEND (SP, 2);
3245	PUSHs (sv_Coro);
3246	PUSHs ((SV *)cv_pool_handler);
3247	PUTBACK;
3248	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3249	SPAGAIN;
3250
3251	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3503	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3504	SvREFCNT_dec (sv);
3252	}	3505	}
3253		3506
3254	{	3507	{
3255	struct coro *coro = SvSTATE_hv (hv);	3508	struct coro *coro = SvSTATE_hv (hv);
3256		3509
…		…
3280	rouse_wait (...)	3533	rouse_wait (...)
3281	PROTOTYPE: ;$	3534	PROTOTYPE: ;$
3282	PPCODE:	3535	PPCODE:
3283	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3536	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3284		3537
		3538	void
		3539	on_enter (SV *block)
		3540	ALIAS:
		3541	on_leave = 1
		3542	PROTOTYPE: &
		3543	CODE:
		3544	{
		3545	struct coro *coro = SvSTATE_current;
		3546	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3547
		3548	block = s_get_cv_croak (block);
		3549
		3550	if (!*avp)
		3551	*avp = newAV ();
		3552
		3553	av_push (*avp, SvREFCNT_inc (block));
		3554
		3555	if (!ix)
		3556	on_enterleave_call (aTHX_ block);
		3557
		3558	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3559	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3560	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3561	}
		3562
3285		3563
3286	MODULE = Coro::State PACKAGE = PerlIO::cede	3564	MODULE = Coro::State PACKAGE = PerlIO::cede
3287		3565
3288	BOOT:	3566	BOOT:
3289	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3567	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3292	MODULE = Coro::State PACKAGE = Coro::Semaphore	3570	MODULE = Coro::State PACKAGE = Coro::Semaphore
3293		3571
3294	SV *	3572	SV *
3295	new (SV *klass, SV *count = 0)	3573	new (SV *klass, SV *count = 0)
3296	CODE:	3574	CODE:
		3575	{
		3576	int semcnt = 1;
		3577
		3578	if (count)
		3579	{
		3580	SvGETMAGIC (count);
		3581
		3582	if (SvOK (count))
		3583	semcnt = SvIV (count);
		3584	}
		3585
3297	RETVAL = sv_bless (	3586	RETVAL = sv_bless (
3298	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3587	coro_waitarray_new (aTHX_ semcnt),
3299	GvSTASH (CvGV (cv))	3588	GvSTASH (CvGV (cv))
3300	);	3589	);
		3590	}
3301	OUTPUT:	3591	OUTPUT:
3302	RETVAL	3592	RETVAL
3303		3593
3304	# helper for Coro::Channel	3594	# helper for Coro::Channel and others
3305	SV *	3595	SV *
3306	_alloc (int count)	3596	_alloc (int count)
3307	CODE:	3597	CODE:
3308	RETVAL = coro_waitarray_new (aTHX_ count);	3598	RETVAL = coro_waitarray_new (aTHX_ count);
3309	OUTPUT:	3599	OUTPUT:
…		…
3367	for (i = 1; i <= wcount; ++i)	3657	for (i = 1; i <= wcount; ++i)
3368	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3658	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3369	}	3659	}
3370	}	3660	}
3371		3661
		3662	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3663
		3664	void
		3665	_may_delete (SV *sem, int count, int extra_refs)
		3666	PPCODE:
		3667	{
		3668	AV *av = (AV *)SvRV (sem);
		3669
		3670	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3671	&& AvFILLp (av) == 0 /* no waiters, just count */
		3672	&& SvIV (AvARRAY (av)[0]) == count)
		3673	XSRETURN_YES;
		3674
		3675	XSRETURN_NO;
		3676	}
		3677
3372	MODULE = Coro::State PACKAGE = Coro::Signal	3678	MODULE = Coro::State PACKAGE = Coro::Signal
3373		3679
3374	SV *	3680	SV *
3375	new (SV *klass)	3681	new (SV *klass)
3376	CODE:	3682	CODE:
…		…
3447		3753
3448	void	3754	void
3449	_register (char *target, char *proto, SV *req)	3755	_register (char *target, char *proto, SV *req)
3450	CODE:	3756	CODE:
3451	{	3757	{
3452	CV *req_cv = coro_sv_2cv (aTHX_ req);	3758	SV *req_cv = s_get_cv_croak (req);
3453	/* newXSproto doesn't return the CV on 5.8 */	3759	/* newXSproto doesn't return the CV on 5.8 */
3454	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3760	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3455	sv_setpv ((SV *)slf_cv, proto);	3761	sv_setpv ((SV *)slf_cv, proto);
3456	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3762	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3457	}	3763	}
3458		3764
		3765	MODULE = Coro::State PACKAGE = Coro::Select
		3766
		3767	void
		3768	patch_pp_sselect ()
		3769	CODE:
		3770	if (!coro_old_pp_sselect)
		3771	{
		3772	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3773	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3774	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3775	}
		3776
		3777	void
		3778	unpatch_pp_sselect ()
		3779	CODE:
		3780	if (coro_old_pp_sselect)
		3781	{
		3782	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3783	coro_old_pp_sselect = 0;
		3784	}
		3785
		3786

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