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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.322 by root, Sat Nov 22 05:13:34 2008 UTC vs.
Revision 1.389 by root, Fri Mar 4 16:41:21 2011 UTC

		1	/* this works around a bug in mingw32 providing a non-working setjmp */
		2	#define USE_NO_MINGW_SETJMP_TWO_ARGS
		3
		4	#define NDEBUG 1
		5
1	#include "libcoro/coro.c"	6	#include "libcoro/coro.c"
2		7
3	#define PERL_NO_GET_CONTEXT	8	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	9	#define PERL_EXT
5		10
6	#include "EXTERN.h"	11	#include "EXTERN.h"
7	#include "perl.h"	12	#include "perl.h"
8	#include "XSUB.h"	13	#include "XSUB.h"
9	#include "perliol.h"	14	#include "perliol.h"
10		15
11	#include "patchlevel.h"	16	#include "schmorp.h"
12		17
13	#include <stdio.h>	18	#include <stdio.h>
14	#include <errno.h>	19	#include <errno.h>
15	#include <assert.h>	20	#include <assert.h>
16		21
17	#ifdef WIN32	22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
		25
		26	#if defined(_WIN32)
		27	# undef HAS_GETTIMEOFDAY
18	# undef setjmp	28	# undef setjmp
19	# undef longjmp	29	# undef longjmp
20	# undef _exit	30	# undef _exit
21	# define setjmp _setjmp /* deep magic */	31	# define setjmp _setjmp /* deep magic */
22	#else	32	#else
…		…
51	#endif	61	#endif
52		62
53	/* the maximum number of idle cctx that will be pooled */	63	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	64	static int cctx_max_idle = 4;
55		65
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#ifndef Newx
107	# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108	#endif
109
110	/* 5.8.7 */
111	#ifndef SvRV_set
112	# define SvRV_set(s,v) SvRV(s) = (v)
113	#endif
114
115	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	66	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	67	# undef CORO_STACKGUARD
117	#endif	68	#endif
118		69
119	#ifndef CORO_STACKGUARD	70	#ifndef CORO_STACKGUARD
…		…
133	#else	84	#else
134	# define dSTACKLEVEL volatile void *stacklevel	85	# define dSTACKLEVEL volatile void *stacklevel
135	# define STACKLEVEL ((void *)&stacklevel)	86	# define STACKLEVEL ((void *)&stacklevel)
136	#endif	87	#endif
137		88
138	#define IN_DESTRUCT (PL_main_cv == Nullcv)	89	#define IN_DESTRUCT PL_dirty
139		90
140	#if __GNUC__ >= 3	91	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	92	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	93	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	94	# define INLINE static inline
144	#else	95	#else
145	# define attribute(x)	96	# define attribute(x)
146	# define expect(expr,value) (expr)	97	# define expect(expr,value) (expr)
147	# define INLINE static	98	# define INLINE static
…		…
159	# if CORO_PTHREAD	110	# if CORO_PTHREAD
160	static void *coro_thx;	111	static void *coro_thx;
161	# endif	112	# endif
162	#endif	113	#endif
163		114
		115	#ifdef __linux
		116	# include <time.h> /* for timespec */
		117	# include <syscall.h> /* for SYS_* */
		118	# ifdef SYS_clock_gettime
		119	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		120	# define CORO_CLOCK_MONOTONIC 1
		121	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		122	# endif
		123	#endif
		124
164	static double (*nvtime)(); /* so why doesn't it take void? */	125	static double (*nvtime)(); /* so why doesn't it take void? */
		126	static void (*u2time)(pTHX_ UV ret[2]);
165		127
166	/* we hijack an hopefully unused CV flag for our purposes */	128	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	129	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	130	static OP *pp_slf (pTHX);
169		131
…		…
175	static HV *coro_state_stash, *coro_stash;	137	static HV *coro_state_stash, *coro_stash;
176	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */	138	static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177		139
178	static AV *av_destroy; /* destruction queue */	140	static AV *av_destroy; /* destruction queue */
179	static SV *sv_manager; /* the manager coro */	141	static SV *sv_manager; /* the manager coro */
		142	static SV *sv_idle; /* $Coro::idle */
180		143
181	static GV *irsgv; /* $/ */	144	static GV *irsgv; /* $/ */
182	static GV *stdoutgv; /* *STDOUT */	145	static GV *stdoutgv; /* *STDOUT */
183	static SV *rv_diehook;	146	static SV *rv_diehook;
184	static SV *rv_warnhook;	147	static SV *rv_warnhook;
…		…
189	static SV *sv_pool_size;	152	static SV *sv_pool_size;
190	static SV *sv_async_pool_idle; /* description string */	153	static SV *sv_async_pool_idle; /* description string */
191	static AV *av_async_pool; /* idle pool */	154	static AV *av_async_pool; /* idle pool */
192	static SV *sv_Coro; /* class string */	155	static SV *sv_Coro; /* class string */
193	static CV *cv_pool_handler;	156	static CV *cv_pool_handler;
194	static CV *cv_coro_state_new;
195		157
196	/* Coro::AnyEvent */	158	/* Coro::AnyEvent */
197	static SV *sv_activity;	159	static SV *sv_activity;
		160
		161	/* enable processtime/realtime profiling */
		162	static char enable_times;
		163	typedef U32 coro_ts[2];
		164	static coro_ts time_real, time_cpu;
		165	static char times_valid;
198		166
199	static struct coro_cctx *cctx_first;	167	static struct coro_cctx *cctx_first;
200	static int cctx_count, cctx_idle;	168	static int cctx_count, cctx_idle;
201		169
202	enum {	170	enum {
…		…
237	enum {	205	enum {
238	CF_RUNNING = 0x0001, /* coroutine is running */	206	CF_RUNNING = 0x0001, /* coroutine is running */
239	CF_READY = 0x0002, /* coroutine is ready */	207	CF_READY = 0x0002, /* coroutine is ready */
240	CF_NEW = 0x0004, /* has never been switched to */	208	CF_NEW = 0x0004, /* has never been switched to */
241	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	209	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		210	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
242	};	211	};
243		212
244	/* the structure where most of the perl state is stored, overlaid on the cxstack */	213	/* the structure where most of the perl state is stored, overlaid on the cxstack */
245	typedef struct	214	typedef struct
246	{	215	{
247	SV *defsv;	216	SV *defsv;
248	AV *defav;	217	AV *defav;
249	SV *errsv;	218	SV *errsv;
250	SV *irsgv;	219	SV *irsgv;
		220	HV *hinthv;
251	#define VAR(name,type) type name;	221	#define VAR(name,type) type name;
252	# include "state.h"	222	# include "state.h"
253	#undef VAR	223	#undef VAR
254	} perl_slots;	224	} perl_slots;
255		225
…		…
257		227
258	/* this is a structure representing a perl-level coroutine */	228	/* this is a structure representing a perl-level coroutine */
259	struct coro {	229	struct coro {
260	/* the C coroutine allocated to this perl coroutine, if any */	230	/* the C coroutine allocated to this perl coroutine, if any */
261	coro_cctx *cctx;	231	coro_cctx *cctx;
		232
		233	/* ready queue */
		234	struct coro *next_ready;
262		235
263	/* state data */	236	/* state data */
264	struct CoroSLF slf_frame; /* saved slf frame */	237	struct CoroSLF slf_frame; /* saved slf frame */
265	AV *mainstack;	238	AV *mainstack;
266	perl_slots *slot; /* basically the saved sp */	239	perl_slots *slot; /* basically the saved sp */
…		…
268	CV *startcv; /* the CV to execute */	241	CV *startcv; /* the CV to execute */
269	AV *args; /* data associated with this coroutine (initial args) */	242	AV *args; /* data associated with this coroutine (initial args) */
270	int refcnt; /* coroutines are refcounted, yes */	243	int refcnt; /* coroutines are refcounted, yes */
271	int flags; /* CF_ flags */	244	int flags; /* CF_ flags */
272	HV *hv; /* the perl hash associated with this coro, if any */	245	HV *hv; /* the perl hash associated with this coro, if any */
273	void (*on_destroy)(pTHX_ struct coro *coro);	246	void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
274		247
275	/* statistics */	248	/* statistics */
276	int usecount; /* number of transfers to this coro */	249	int usecount; /* number of transfers to this coro */
277		250
278	/* coro process data */	251	/* coro process data */
…		…
283	/* async_pool */	256	/* async_pool */
284	SV *saved_deffh;	257	SV *saved_deffh;
285	SV *invoke_cb;	258	SV *invoke_cb;
286	AV *invoke_av;	259	AV *invoke_av;
287		260
		261	/* on_enter/on_leave */
		262	AV *on_enter;
		263	AV *on_leave;
		264
		265	/* swap_sv */
		266	AV *swap_sv;
		267
		268	/* times */
		269	coro_ts t_cpu, t_real;
		270
288	/* linked list */	271	/* linked list */
289	struct coro *next, *prev;	272	struct coro *next, *prev;
290	};	273	};
291		274
292	typedef struct coro *Coro__State;	275	typedef struct coro *Coro__State;
…		…
297	/* the mainr easonw e don't support windows process emulation */	280	/* the mainr easonw e don't support windows process emulation */
298	static struct CoroSLF slf_frame; /* the current slf frame */	281	static struct CoroSLF slf_frame; /* the current slf frame */
299		282
300	/** Coro ********************************************************************/	283	/** Coro ********************************************************************/
301		284
302	#define PRIO_MAX 3	285	#define CORO_PRIO_MAX 3
303	#define PRIO_HIGH 1	286	#define CORO_PRIO_HIGH 1
304	#define PRIO_NORMAL 0	287	#define CORO_PRIO_NORMAL 0
305	#define PRIO_LOW -1	288	#define CORO_PRIO_LOW -1
306	#define PRIO_IDLE -3	289	#define CORO_PRIO_IDLE -3
307	#define PRIO_MIN -4	290	#define CORO_PRIO_MIN -4
308		291
309	/* for Coro.pm */	292	/* for Coro.pm */
310	static SV *coro_current;	293	static SV *coro_current;
311	static SV *coro_readyhook;	294	static SV *coro_readyhook;
312	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	295	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
313	static CV *cv_coro_run, *cv_coro_terminate;	296	static CV *cv_coro_run, *cv_coro_terminate;
314	static struct coro *coro_first;	297	static struct coro *coro_first;
315	#define coro_nready coroapi.nready	298	#define coro_nready coroapi.nready
		299
		300	/** Coro::Select ************************************************************/
		301
		302	static OP *(*coro_old_pp_sselect) (pTHX);
		303	static SV *coro_select_select;
		304
		305	/* horrible hack, but if it works... */
		306	static OP *
		307	coro_pp_sselect (pTHX)
		308	{
		309	dSP;
		310	PUSHMARK (SP - 4); /* fake argument list */
		311	XPUSHs (coro_select_select);
		312	PUTBACK;
		313
		314	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		315	PL_op->op_flags |= OPf_STACKED;
		316	PL_op->op_private = 0;
		317	return PL_ppaddr [OP_ENTERSUB](aTHX);
		318	}
		319
		320	/** time stuff **************************************************************/
		321
		322	#ifdef HAS_GETTIMEOFDAY
		323
		324	static void
		325	coro_u2time (pTHX_ UV ret[2])
		326	{
		327	struct timeval tv;
		328	gettimeofday (&tv, 0);
		329
		330	ret [0] = tv.tv_sec;
		331	ret [1] = tv.tv_usec;
		332	}
		333
		334	static double
		335	coro_nvtime ()
		336	{
		337	struct timeval tv;
		338	gettimeofday (&tv, 0);
		339
		340	return tv.tv_sec + tv.tv_usec * 1e-6;
		341	}
		342
		343	static void
		344	time_init (pTHX)
		345	{
		346	nvtime = coro_nvtime;
		347	u2time = coro_u2time;
		348	}
		349
		350	#else
		351
		352	static void
		353	time_init (pTHX)
		354	{
		355	SV **svp;
		356
		357	require_pv ("Time/HiRes.pm");
		358
		359	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		360
		361	if (!svp) croak ("Time::HiRes is required, but missing.");
		362	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		363
		364	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		365
		366	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		367	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
		368	}
		369
		370	#endif
316		371
317	/** lowlevel stuff **********************************************************/	372	/** lowlevel stuff **********************************************************/
318		373
319	static SV *	374	static SV *
320	coro_get_sv (pTHX_ const char *name, int create)	375	coro_get_sv (pTHX_ const char *name, int create)
…		…
344	get_hv (name, create);	399	get_hv (name, create);
345	#endif	400	#endif
346	return get_hv (name, create);	401	return get_hv (name, create);
347	}	402	}
348		403
349	/* may croak */	404	INLINE void
350	INLINE CV *	405	coro_times_update ()
351	coro_sv_2cv (pTHX_ SV *sv)
352	{	406	{
		407	#ifdef coro_clock_gettime
		408	struct timespec ts;
		409
		410	ts.tv_sec = ts.tv_nsec = 0;
		411	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		412	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		413
		414	ts.tv_sec = ts.tv_nsec = 0;
		415	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		416	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		417	#else
		418	dTHX;
		419	UV tv[2];
		420
		421	u2time (aTHX_ tv);
		422	time_real [0] = tv [0];
		423	time_real [1] = tv [1] * 1000;
		424	#endif
		425	}
		426
		427	INLINE void
		428	coro_times_add (struct coro *c)
		429	{
		430	c->t_real [1] += time_real [1];
		431	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		432	c->t_real [0] += time_real [0];
		433
		434	c->t_cpu [1] += time_cpu [1];
		435	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		436	c->t_cpu [0] += time_cpu [0];
		437	}
		438
		439	INLINE void
		440	coro_times_sub (struct coro *c)
		441	{
		442	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		443	c->t_real [1] -= time_real [1];
		444	c->t_real [0] -= time_real [0];
		445
		446	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		447	c->t_cpu [1] -= time_cpu [1];
		448	c->t_cpu [0] -= time_cpu [0];
		449	}
		450
		451	/*****************************************************************************/
		452	/* magic glue */
		453
		454	#define CORO_MAGIC_type_cv 26
		455	#define CORO_MAGIC_type_state PERL_MAGIC_ext
		456
		457	#define CORO_MAGIC_NN(sv, type) \
		458	(expect_true (SvMAGIC (sv)->mg_type == type) \
		459	? SvMAGIC (sv) \
		460	: mg_find (sv, type))
		461
		462	#define CORO_MAGIC(sv, type) \
		463	(expect_true (SvMAGIC (sv)) \
		464	? CORO_MAGIC_NN (sv, type) \
		465	: 0)
		466
		467	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		468	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
		469
		470	INLINE struct coro *
		471	SvSTATE_ (pTHX_ SV *coro)
		472	{
353	HV *st;	473	HV *stash;
354	GV *gvp;	474	MAGIC *mg;
355	return sv_2cv (sv, &st, &gvp, 0);	475
		476	if (SvROK (coro))
		477	coro = SvRV (coro);
		478
		479	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		480	croak ("Coro::State object required");
		481
		482	stash = SvSTASH (coro);
		483	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		484	{
		485	/* very slow, but rare, check */
		486	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		487	croak ("Coro::State object required");
		488	}
		489
		490	mg = CORO_MAGIC_state (coro);
		491	return (struct coro *)mg->mg_ptr;
356	}	492	}
		493
		494	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		495
		496	/* faster than SvSTATE, but expects a coroutine hv */
		497	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
		498	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
		499
		500	/*****************************************************************************/
		501	/* padlist management and caching */
357		502
358	static AV *	503	static AV *
359	coro_derive_padlist (pTHX_ CV *cv)	504	coro_derive_padlist (pTHX_ CV *cv)
360	{	505	{
361	AV *padlist = CvPADLIST (cv);	506	AV *padlist = CvPADLIST (cv);
…		…
369	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	514	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370	#endif	515	#endif
371	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	516	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372	--AvFILLp (padlist);	517	--AvFILLp (padlist);
373		518
374	av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));	519	av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375	av_store (newpadlist, 1, (SV *)newpad);	520	av_store (newpadlist, 1, (SV *)newpad);
376		521
377	return newpadlist;	522	return newpadlist;
378	}	523	}
379		524
380	static void	525	static void
381	free_padlist (pTHX_ AV *padlist)	526	free_padlist (pTHX_ AV *padlist)
382	{	527	{
383	/* may be during global destruction */	528	/* may be during global destruction */
384	if (SvREFCNT (padlist))	529	if (!IN_DESTRUCT)
385	{	530	{
386	I32 i = AvFILLp (padlist);	531	I32 i = AvFILLp (padlist);
387	while (i >= 0)	532
		533	while (i > 0) /* special-case index 0 */
388	{	534	{
389	SV **svp = av_fetch (padlist, i--, FALSE);	535	/* we try to be extra-careful here */
390	if (svp)	536	AV *av = (AV *)AvARRAY (padlist)[i--];
391	{	537	I32 j = AvFILLp (av);
392	SV *sv;	538
393	while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))	539	while (j >= 0)
		540	SvREFCNT_dec (AvARRAY (av)[j--]);
		541
		542	AvFILLp (av) = -1;
394	SvREFCNT_dec (sv);	543	SvREFCNT_dec (av);
395
396	SvREFCNT_dec (*svp);
397	}
398	}	544	}
399		545
		546	SvREFCNT_dec (AvARRAY (padlist)[0]);
		547
		548	AvFILLp (padlist) = -1;
400	SvREFCNT_dec ((SV*)padlist);	549	SvREFCNT_dec ((SV*)padlist);
401	}	550	}
402	}	551	}
403		552
404	static int	553	static int
405	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	554	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406	{	555	{
407	AV *padlist;	556	AV *padlist;
408	AV *av = (AV *)mg->mg_obj;	557	AV *av = (AV *)mg->mg_obj;
		558
		559	/* perl manages to free our internal AV and _then_ call us */
		560	if (IN_DESTRUCT)
		561	return 0;
409		562
410	/* casting is fun. */	563	/* casting is fun. */
411	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	564	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412	free_padlist (aTHX_ padlist);	565	free_padlist (aTHX_ padlist);
413		566
414	SvREFCNT_dec (av); /* sv_magicext increased the refcount */	567	SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415		568
416	return 0;	569	return 0;
417	}	570	}
418
419	#define CORO_MAGIC_type_cv 26
420	#define CORO_MAGIC_type_state PERL_MAGIC_ext
421		571
422	static MGVTBL coro_cv_vtbl = {	572	static MGVTBL coro_cv_vtbl = {
423	0, 0, 0, 0,	573	0, 0, 0, 0,
424	coro_cv_free	574	coro_cv_free
425	};	575	};
426
427	#define CORO_MAGIC_NN(sv, type) \
428	(expect_true (SvMAGIC (sv)->mg_type == type) \
429	? SvMAGIC (sv) \
430	: mg_find (sv, type))
431
432	#define CORO_MAGIC(sv, type) \
433	(expect_true (SvMAGIC (sv)) \
434	? CORO_MAGIC_NN (sv, type) \
435	: 0)
436
437	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
438	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
439
440	INLINE struct coro *
441	SvSTATE_ (pTHX_ SV *coro)
442	{
443	HV *stash;
444	MAGIC *mg;
445
446	if (SvROK (coro))
447	coro = SvRV (coro);
448
449	if (expect_false (SvTYPE (coro) != SVt_PVHV))
450	croak ("Coro::State object required");
451
452	stash = SvSTASH (coro);
453	if (expect_false (stash != coro_stash && stash != coro_state_stash))
454	{
455	/* very slow, but rare, check */
456	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
457	croak ("Coro::State object required");
458	}
459
460	mg = CORO_MAGIC_state (coro);
461	return (struct coro *)mg->mg_ptr;
462	}
463
464	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
465
466	/* faster than SvSTATE, but expects a coroutine hv */
467	#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
468	#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
469		576
470	/* the next two functions merely cache the padlists */	577	/* the next two functions merely cache the padlists */
471	static void	578	static void
472	get_padlist (pTHX_ CV *cv)	579	get_padlist (pTHX_ CV *cv)
473	{	580	{
…		…
501	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);	608	mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
502		609
503	av = (AV *)mg->mg_obj;	610	av = (AV *)mg->mg_obj;
504		611
505	if (expect_false (AvFILLp (av) >= AvMAX (av)))	612	if (expect_false (AvFILLp (av) >= AvMAX (av)))
506	av_extend (av, AvMAX (av) + 1);	613	av_extend (av, AvFILLp (av) + 1);
507		614
508	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	615	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509	}	616	}
510		617
511	/** load & save, init *******************************************************/	618	/** load & save, init *******************************************************/
		619
		620	/* swap sv heads, at least logically */
		621	static void
		622	swap_svs (pTHX_ Coro__State c)
		623	{
		624	int i;
		625
		626	for (i = 0; i <= AvFILLp (c->swap_sv); )
		627	{
		628	SV *a = AvARRAY (c->swap_sv)[i++];
		629	SV *b = AvARRAY (c->swap_sv)[i++];
		630
		631	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		632	SV tmp;
		633
		634	/* swap sv_any */
		635	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		636
		637	/* swap sv_flags */
		638	SvFLAGS (&tmp) = SvFLAGS (a);
		639	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		640	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		641
		642	#if PERL_VERSION_ATLEAST (5,10,0)
		643	/* perl 5.10 complicates this _quite_ a bit, but it also is
		644	* much faster, so no quarrels here. alternatively, we could
		645	* sv_upgrade to avoid this.
		646	*/
		647	{
		648	/* swap sv_u */
		649	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		650
		651	/* if SvANY points to the head, we need to adjust the pointers,
		652	* as the pointer for a still points to b, and maybe vice versa.
		653	*/
		654	#define svany_in_head(type) \
		655	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		656
		657	if (svany_in_head (SvTYPE (a)))
		658	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		659
		660	if (svany_in_head (SvTYPE (b)))
		661	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		662	}
		663	#endif
		664	}
		665	}
		666
		667	#define SWAP_SVS(coro) \
		668	if (expect_false ((coro)->swap_sv)) \
		669	swap_svs (aTHX_ (coro))
		670
		671	static void
		672	on_enterleave_call (pTHX_ SV *cb);
512		673
513	static void	674	static void
514	load_perl (pTHX_ Coro__State c)	675	load_perl (pTHX_ Coro__State c)
515	{	676	{
516	perl_slots *slot = c->slot;	677	perl_slots *slot = c->slot;
517	c->slot = 0;	678	c->slot = 0;
518		679
519	PL_mainstack = c->mainstack;	680	PL_mainstack = c->mainstack;
520		681
521	GvSV (PL_defgv) = slot->defsv;	682	GvSV (PL_defgv) = slot->defsv;
522	GvAV (PL_defgv) = slot->defav;	683	GvAV (PL_defgv) = slot->defav;
523	GvSV (PL_errgv) = slot->errsv;	684	GvSV (PL_errgv) = slot->errsv;
524	GvSV (irsgv) = slot->irsgv;	685	GvSV (irsgv) = slot->irsgv;
		686	GvHV (PL_hintgv) = slot->hinthv;
525		687
526	#define VAR(name,type) PL_ ## name = slot->name;	688	#define VAR(name,type) PL_ ## name = slot->name;
527	# include "state.h"	689	# include "state.h"
528	#undef VAR	690	#undef VAR
529		691
…		…
543	PUTBACK;	705	PUTBACK;
544	}	706	}
545		707
546	slf_frame = c->slf_frame;	708	slf_frame = c->slf_frame;
547	CORO_THROW = c->except;	709	CORO_THROW = c->except;
		710
		711	if (expect_false (enable_times))
		712	{
		713	if (expect_false (!times_valid))
		714	coro_times_update ();
		715
		716	coro_times_sub (c);
		717	}
		718
		719	if (expect_false (c->on_enter))
		720	{
		721	int i;
		722
		723	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		724	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		725	}
		726
		727	SWAP_SVS (c);
548	}	728	}
549		729
550	static void	730	static void
551	save_perl (pTHX_ Coro__State c)	731	save_perl (pTHX_ Coro__State c)
552	{	732	{
		733	SWAP_SVS (c);
		734
		735	if (expect_false (c->on_leave))
		736	{
		737	int i;
		738
		739	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		740	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		741	}
		742
		743	times_valid = 0;
		744
		745	if (expect_false (enable_times))
		746	{
		747	coro_times_update (); times_valid = 1;
		748	coro_times_add (c);
		749	}
		750
553	c->except = CORO_THROW;	751	c->except = CORO_THROW;
554	c->slf_frame = slf_frame;	752	c->slf_frame = slf_frame;
555		753
556	{	754	{
557	dSP;	755	dSP;
…		…
570	{	768	{
571	while (expect_true (cxix >= 0))	769	while (expect_true (cxix >= 0))
572	{	770	{
573	PERL_CONTEXT *cx = &ccstk[cxix--];	771	PERL_CONTEXT *cx = &ccstk[cxix--];
574		772
575	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	773	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
576	{	774	{
577	CV *cv = cx->blk_sub.cv;	775	CV *cv = cx->blk_sub.cv;
578		776
579	if (expect_true (CvDEPTH (cv)))	777	if (expect_true (CvDEPTH (cv)))
580	{	778	{
…		…
604	/* we manually unroll here, as usually 2 slots is enough */	802	/* we manually unroll here, as usually 2 slots is enough */
605	if (SLOT_COUNT >= 1) CXINC;	803	if (SLOT_COUNT >= 1) CXINC;
606	if (SLOT_COUNT >= 2) CXINC;	804	if (SLOT_COUNT >= 2) CXINC;
607	if (SLOT_COUNT >= 3) CXINC;	805	if (SLOT_COUNT >= 3) CXINC;
608	{	806	{
609	int i;	807	unsigned int i;
610	for (i = 3; i < SLOT_COUNT; ++i)	808	for (i = 3; i < SLOT_COUNT; ++i)
611	CXINC;	809	CXINC;
612	}	810	}
613	cxstack_ix -= SLOT_COUNT; /* undo allocation */	811	cxstack_ix -= SLOT_COUNT; /* undo allocation */
614		812
615	c->mainstack = PL_mainstack;	813	c->mainstack = PL_mainstack;
616		814
617	{	815	{
618	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	816	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619		817
620	slot->defav = GvAV (PL_defgv);	818	slot->defav = GvAV (PL_defgv);
621	slot->defsv = DEFSV;	819	slot->defsv = DEFSV;
622	slot->errsv = ERRSV;	820	slot->errsv = ERRSV;
623	slot->irsgv = GvSV (irsgv);	821	slot->irsgv = GvSV (irsgv);
		822	slot->hinthv = GvHV (PL_hintgv);
624		823
625	#define VAR(name,type) slot->name = PL_ ## name;	824	#define VAR(name,type) slot->name = PL_ ## name;
626	# include "state.h"	825	# include "state.h"
627	#undef VAR	826	#undef VAR
628	}	827	}
…		…
755	#endif	954	#endif
756		955
757	/*	956	/*
758	* This overrides the default magic get method of %SIG elements.	957	* This overrides the default magic get method of %SIG elements.
759	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	958	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
760	* and instead of tryign to save and restore the hash elements, we just provide	959	* and instead of trying to save and restore the hash elements, we just provide
761	* readback here.	960	* readback here.
762	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
763	* not expecting this to actually change the hook. This is a potential problem
764	* when a schedule happens then, but we ignore this.
765	*/	961	*/
766	static int	962	static int
767	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	963	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768	{	964	{
769	const char *s = MgPV_nolen_const (mg);	965	const char *s = MgPV_nolen_const (mg);
…		…
822	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	1018	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823		1019
824	if (svp)	1020	if (svp)
825	{	1021	{
826	SV *old = *svp;	1022	SV *old = *svp;
827	*svp = newSVsv (sv);	1023	*svp = SvOK (sv) ? newSVsv (sv) : 0;
828	SvREFCNT_dec (old);	1024	SvREFCNT_dec (old);
829	return 0;	1025	return 0;
830	}	1026	}
831	}	1027	}
832		1028
…		…
850	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1046	slf_check_repeat (pTHX_ struct CoroSLF *frame)
851	{	1047	{
852	return 1;	1048	return 1;
853	}	1049	}
854		1050
855	static UNOP coro_setup_op;	1051	static UNOP init_perl_op;
856		1052
857	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1053	static void NOINLINE /* noinline to keep it out of the transfer fast path */
858	coro_setup (pTHX_ struct coro *coro)	1054	init_perl (pTHX_ struct coro *coro)
859	{	1055	{
860	/*	1056	/*
861	* emulate part of the perl startup here.	1057	* emulate part of the perl startup here.
862	*/	1058	*/
863	coro_init_stacks (aTHX);	1059	coro_init_stacks (aTHX);
864		1060
865	PL_runops = RUNOPS_DEFAULT;	1061	PL_runops = RUNOPS_DEFAULT;
866	PL_curcop = &PL_compiling;	1062	PL_curcop = &PL_compiling;
867	PL_in_eval = EVAL_NULL;	1063	PL_in_eval = EVAL_NULL;
868	PL_comppad = 0;	1064	PL_comppad = 0;
		1065	PL_comppad_name = 0;
		1066	PL_comppad_name_fill = 0;
		1067	PL_comppad_name_floor = 0;
869	PL_curpm = 0;	1068	PL_curpm = 0;
870	PL_curpad = 0;	1069	PL_curpad = 0;
871	PL_localizing = 0;	1070	PL_localizing = 0;
872	PL_dirty = 0;
873	PL_restartop = 0;	1071	PL_restartop = 0;
874	#if PERL_VERSION_ATLEAST (5,10,0)	1072	#if PERL_VERSION_ATLEAST (5,10,0)
875	PL_parser = 0;	1073	PL_parser = 0;
876	#endif	1074	#endif
		1075	PL_hints = 0;
877		1076
878	/* recreate the die/warn hooks */	1077	/* recreate the die/warn hooks */
879	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );	1078	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
880	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);	1079	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
881		1080
882	GvSV (PL_defgv) = newSV (0);	1081	GvSV (PL_defgv) = newSV (0);
883	GvAV (PL_defgv) = coro->args; coro->args = 0;	1082	GvAV (PL_defgv) = coro->args; coro->args = 0;
884	GvSV (PL_errgv) = newSV (0);	1083	GvSV (PL_errgv) = newSV (0);
885	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	1084	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		1085	GvHV (PL_hintgv) = 0;
886	PL_rs = newSVsv (GvSV (irsgv));	1086	PL_rs = newSVsv (GvSV (irsgv));
887	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);	1087	PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888		1088
889	{	1089	{
890	dSP;	1090	dSP;
…		…
907	*/	1107	*/
908	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1108	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
909	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1109	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
910		1110
911	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1111	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
912	coro_setup_op.op_next = PL_op;	1112	init_perl_op.op_next = PL_op;
913	coro_setup_op.op_type = OP_ENTERSUB;	1113	init_perl_op.op_type = OP_ENTERSUB;
914	coro_setup_op.op_ppaddr = pp_slf;	1114	init_perl_op.op_ppaddr = pp_slf;
915	/* no flags etc. required, as an init function won't be called */	1115	/* no flags etc. required, as an init function won't be called */
916		1116
917	PL_op = (OP *)&coro_setup_op;	1117	PL_op = (OP *)&init_perl_op;
918		1118
919	/* copy throw, in case it was set before coro_setup */	1119	/* copy throw, in case it was set before init_perl */
920	CORO_THROW = coro->except;	1120	CORO_THROW = coro->except;
921	}
922		1121
		1122	SWAP_SVS (coro);
		1123
		1124	if (expect_false (enable_times))
		1125	{
		1126	coro_times_update ();
		1127	coro_times_sub (coro);
		1128	}
		1129	}
		1130
923	static void	1131	static void
924	coro_destruct (pTHX_ struct coro *coro)	1132	coro_unwind_stacks (pTHX)
925	{	1133	{
926	if (!IN_DESTRUCT)	1134	if (!IN_DESTRUCT)
927	{	1135	{
928	/* restore all saved variables and stuff */	1136	/* restore all saved variables and stuff */
929	LEAVE_SCOPE (0);	1137	LEAVE_SCOPE (0);
…		…
937	POPSTACK_TO (PL_mainstack);	1145	POPSTACK_TO (PL_mainstack);
938		1146
939	/* unwind main stack */	1147	/* unwind main stack */
940	dounwind (-1);	1148	dounwind (-1);
941	}	1149	}
		1150	}
942		1151
943	SvREFCNT_dec (GvSV (PL_defgv));	1152	static void
944	SvREFCNT_dec (GvAV (PL_defgv));	1153	destroy_perl (pTHX_ struct coro *coro)
945	SvREFCNT_dec (GvSV (PL_errgv));	1154	{
946	SvREFCNT_dec (PL_defoutgv);	1155	SV *svf [9];
947	SvREFCNT_dec (PL_rs);
948	SvREFCNT_dec (GvSV (irsgv));
949		1156
950	SvREFCNT_dec (PL_diehook);
951	SvREFCNT_dec (PL_warnhook);
952		1157	{
		1158	struct coro *current = SvSTATE_current;
		1159
		1160	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1161
		1162	save_perl (aTHX_ current);
		1163	load_perl (aTHX_ coro);
		1164
		1165	coro_unwind_stacks (aTHX);
		1166	coro_destruct_stacks (aTHX);
		1167
		1168	/* restore swapped sv's */
		1169	SWAP_SVS (coro);
		1170
		1171	// now save some sv's to be free'd later
		1172	svf [0] = GvSV (PL_defgv);
		1173	svf [1] = (SV *)GvAV (PL_defgv);
		1174	svf [2] = GvSV (PL_errgv);
		1175	svf [3] = (SV *)PL_defoutgv;
		1176	svf [4] = PL_rs;
		1177	svf [5] = GvSV (irsgv);
		1178	svf [6] = (SV *)GvHV (PL_hintgv);
		1179	svf [7] = PL_diehook;
		1180	svf [8] = PL_warnhook;
		1181	assert (9 == sizeof (svf) / sizeof (*svf));
		1182
		1183	load_perl (aTHX_ current);
		1184	}
		1185
		1186	{
		1187	unsigned int i;
		1188
		1189	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1190	SvREFCNT_dec (svf [i]);
		1191
953	SvREFCNT_dec (coro->saved_deffh);	1192	SvREFCNT_dec (coro->saved_deffh);
954	SvREFCNT_dec (coro->rouse_cb);	1193	SvREFCNT_dec (coro->rouse_cb);
955	SvREFCNT_dec (coro->invoke_cb);	1194	SvREFCNT_dec (coro->invoke_cb);
956	SvREFCNT_dec (coro->invoke_av);	1195	SvREFCNT_dec (coro->invoke_av);
957		1196	}
958	coro_destruct_stacks (aTHX);
959	}	1197	}
960		1198
961	INLINE void	1199	INLINE void
962	free_coro_mortal (pTHX)	1200	free_coro_mortal (pTHX)
963	{	1201	{
…		…
971	static int	1209	static int
972	runops_trace (pTHX)	1210	runops_trace (pTHX)
973	{	1211	{
974	COP *oldcop = 0;	1212	COP *oldcop = 0;
975	int oldcxix = -2;	1213	int oldcxix = -2;
976	struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
977	coro_cctx *cctx = coro->cctx;
978		1214
979	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	1215	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
980	{	1216	{
981	PERL_ASYNC_CHECK ();	1217	PERL_ASYNC_CHECK ();
982		1218
983	if (cctx->flags & CC_TRACE_ALL)	1219	if (cctx_current->flags & CC_TRACE_ALL)
984	{	1220	{
985	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	1221	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
986	{	1222	{
987	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1223	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
988	SV **bot, **top;	1224	SV **bot, **top;
989	AV *av = newAV (); /* return values */	1225	AV *av = newAV (); /* return values */
990	SV **cb;	1226	SV **cb;
…		…
1027		1263
1028	if (PL_curcop != &PL_compiling)	1264	if (PL_curcop != &PL_compiling)
1029	{	1265	{
1030	SV **cb;	1266	SV **cb;
1031		1267
1032	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1268	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1033	{	1269	{
1034	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1270	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1035		1271
1036	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1272	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1037	{	1273	{
…		…
1060	}	1296	}
1061		1297
1062	oldcxix = cxstack_ix;	1298	oldcxix = cxstack_ix;
1063	}	1299	}
1064		1300
1065	if (cctx->flags & CC_TRACE_LINE)	1301	if (cctx_current->flags & CC_TRACE_LINE)
1066	{	1302	{
1067	dSP;	1303	dSP;
1068		1304
1069	PL_runops = RUNOPS_DEFAULT;	1305	PL_runops = RUNOPS_DEFAULT;
1070	ENTER;	1306	ENTER;
…		…
1162	/* somebody or something will hit me for both perl_run and PL_restartop */	1398	/* somebody or something will hit me for both perl_run and PL_restartop */
1163	PL_restartop = PL_op;	1399	PL_restartop = PL_op;
1164	perl_run (PL_curinterp);	1400	perl_run (PL_curinterp);
1165	/*	1401	/*
1166	* Unfortunately, there is no way to get at the return values of the	1402	* Unfortunately, there is no way to get at the return values of the
1167	* coro body here, as perl_run destroys these	1403	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1404	* runtime errors here, as this is just a random interpreter, not a thread.
1168	*/	1405	*/
1169		1406
1170	/*	1407	/*
1171	* If perl-run returns we assume exit() was being called or the coro	1408	* If perl-run returns we assume exit() was being called or the coro
1172	* fell off the end, which seems to be the only valid (non-bug)	1409	* fell off the end, which seems to be the only valid (non-bug)
1173	* reason for perl_run to return. We try to exit by jumping to the	1410	* reason for perl_run to return. We try to exit by jumping to the
1174	* bootstrap-time "top" top_env, as we cannot restore the "main"	1411	* bootstrap-time "top" top_env, as we cannot restore the "main"
1175	* coroutine as Coro has no such concept	1412	* coroutine as Coro has no such concept.
		1413	* This actually isn't valid with the pthread backend, but OSes requiring
		1414	* that backend are too broken to do it in a standards-compliant way.
1176	*/	1415	*/
1177	PL_top_env = main_top_env;	1416	PL_top_env = main_top_env;
1178	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */	1417	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1179	}	1418	}
1180	}	1419	}
…		…
1257	cctx_destroy (coro_cctx *cctx)	1496	cctx_destroy (coro_cctx *cctx)
1258	{	1497	{
1259	if (!cctx)	1498	if (!cctx)
1260	return;	1499	return;
1261		1500
1262	assert (cctx != cctx_current);//D temporary	1501	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1263		1502
1264	--cctx_count;	1503	--cctx_count;
1265	coro_destroy (&cctx->cctx);	1504	coro_destroy (&cctx->cctx);
1266		1505
1267	/* coro_transfer creates new, empty cctx's */	1506	/* coro_transfer creates new, empty cctx's */
…		…
1331	/* TODO: throwing up here is considered harmful */	1570	/* TODO: throwing up here is considered harmful */
1332		1571
1333	if (expect_true (prev != next))	1572	if (expect_true (prev != next))
1334	{	1573	{
1335	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1574	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1336	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1575	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1337		1576
1338	if (expect_false (next->flags & CF_RUNNING))
1339	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1340
1341	if (expect_false (next->flags & CF_DESTROYED))	1577	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1342	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1578	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1343		1579
1344	#if !PERL_VERSION_ATLEAST (5,10,0)	1580	#if !PERL_VERSION_ATLEAST (5,10,0)
1345	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1581	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1346	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1582	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1347	#endif	1583	#endif
…		…
1380	if (expect_false (next->flags & CF_NEW))	1616	if (expect_false (next->flags & CF_NEW))
1381	{	1617	{
1382	/* need to start coroutine */	1618	/* need to start coroutine */
1383	next->flags &= ~CF_NEW;	1619	next->flags &= ~CF_NEW;
1384	/* setup coroutine call */	1620	/* setup coroutine call */
1385	coro_setup (aTHX_ next);	1621	init_perl (aTHX_ next);
1386	}	1622	}
1387	else	1623	else
1388	load_perl (aTHX_ next);	1624	load_perl (aTHX_ next);
1389		1625
1390	/* possibly untie and reuse the cctx */	1626	/* possibly untie and reuse the cctx */
…		…
1395	))	1631	))
1396	{	1632	{
1397	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1633	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1398	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));	1634	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1399		1635
1400	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1636	/* 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 */	1637	/* without this the next cctx_get might destroy the running cctx while still in use */
1402	if (expect_false (CCTX_EXPIRED (cctx_current)))	1638	if (expect_false (CCTX_EXPIRED (cctx_current)))
1403	if (!next->cctx)	1639	if (expect_true (!next->cctx))
1404	next->cctx = cctx_get (aTHX);	1640	next->cctx = cctx_get (aTHX);
1405		1641
1406	cctx_put (cctx_current);	1642	cctx_put (cctx_current);
1407	assert (!prev->cctx);//D temporary
1408	}	1643	}
1409	else	1644	else
1410	prev->cctx = cctx_current;	1645	prev->cctx = cctx_current;
1411		1646
1412	++next->usecount;	1647	++next->usecount;
…		…
1436	coro_state_destroy (pTHX_ struct coro *coro)	1671	coro_state_destroy (pTHX_ struct coro *coro)
1437	{	1672	{
1438	if (coro->flags & CF_DESTROYED)	1673	if (coro->flags & CF_DESTROYED)
1439	return 0;	1674	return 0;
1440		1675
1441	if (coro->on_destroy)	1676	if (coro->on_destroy && !PL_dirty)
1442	coro->on_destroy (aTHX_ coro);	1677	coro->on_destroy (aTHX_ coro);
1443		1678
1444	coro->flags |= CF_DESTROYED;	1679	coro->flags |= CF_DESTROYED;
1445		1680
1446	if (coro->flags & CF_READY)	1681	if (coro->flags & CF_READY)
…		…
1450	--coro_nready;	1685	--coro_nready;
1451	}	1686	}
1452	else	1687	else
1453	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1688	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1454		1689
1455	if (coro->mainstack && coro->mainstack != main_mainstack)	1690	if (coro->mainstack
1456	{	1691	&& coro->mainstack != main_mainstack
1457	struct coro temp;	1692	&& coro->slot
1458		1693	&& !PL_dirty)
1459	assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1460
1461	save_perl (aTHX_ &temp);
1462	load_perl (aTHX_ coro);	1694	destroy_perl (aTHX_ coro);
1463		1695
1464	coro_destruct (aTHX_ coro);	1696	if (coro->next) coro->next->prev = coro->prev;
1465		1697	if (coro->prev) coro->prev->next = coro->next;
1466	load_perl (aTHX_ &temp);	1698	if (coro == coro_first) coro_first = coro->next;
1467
1468	coro->slot = 0;
1469	}
1470		1699
1471	cctx_destroy (coro->cctx);	1700	cctx_destroy (coro->cctx);
1472	SvREFCNT_dec (coro->startcv);	1701	SvREFCNT_dec (coro->startcv);
1473	SvREFCNT_dec (coro->args);	1702	SvREFCNT_dec (coro->args);
		1703	SvREFCNT_dec (coro->swap_sv);
1474	SvREFCNT_dec (CORO_THROW);	1704	SvREFCNT_dec (CORO_THROW);
1475
1476	if (coro->next) coro->next->prev = coro->prev;
1477	if (coro->prev) coro->prev->next = coro->next;
1478	if (coro == coro_first) coro_first = coro->next;
1479		1705
1480	return 1;	1706	return 1;
1481	}	1707	}
1482		1708
1483	static int	1709	static int
…		…
1533		1759
1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1760	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1535	TRANSFER (ta, 1);	1761	TRANSFER (ta, 1);
1536	}	1762	}
1537		1763
1538	/*****************************************************************************/
1539	/* gensub: simple closure generation utility */
1540
1541	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1542
1543	/* create a closure from XS, returns a code reference */
1544	/* the arg can be accessed via GENSUB_ARG from the callback */
1545	/* the callback must use dXSARGS/XSRETURN */
1546	static SV *
1547	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1548	{
1549	CV *cv = (CV *)newSV (0);
1550
1551	sv_upgrade ((SV *)cv, SVt_PVCV);
1552
1553	CvANON_on (cv);
1554	CvISXSUB_on (cv);
1555	CvXSUB (cv) = xsub;
1556	GENSUB_ARG = arg;
1557
1558	return newRV_noinc ((SV *)cv);
1559	}
1560
1561	/** Coro ********************************************************************/	1764	/** Coro ********************************************************************/
1562		1765
1563	INLINE void	1766	INLINE void
1564	coro_enq (pTHX_ struct coro *coro)	1767	coro_enq (pTHX_ struct coro *coro)
1565	{	1768	{
1566	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1769	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1567	}
1568		1770
1569	INLINE SV *	1771	SvREFCNT_inc_NN (coro->hv);
		1772
		1773	coro->next_ready = 0;
		1774	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1775	ready [1] = coro;
		1776	}
		1777
		1778	INLINE struct coro *
1570	coro_deq (pTHX)	1779	coro_deq (pTHX)
1571	{	1780	{
1572	int prio;	1781	int prio;
1573		1782
1574	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1783	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1575	if (AvFILLp (coro_ready [prio]) >= 0)	1784	{
1576	return av_shift (coro_ready [prio]);	1785	struct coro **ready = coro_ready [prio];
		1786
		1787	if (ready [0])
		1788	{
		1789	struct coro *coro = ready [0];
		1790	ready [0] = coro->next_ready;
		1791	return coro;
		1792	}
		1793	}
1577		1794
1578	return 0;	1795	return 0;
		1796	}
		1797
		1798	static void
		1799	invoke_sv_ready_hook_helper (void)
		1800	{
		1801	dTHX;
		1802	dSP;
		1803
		1804	ENTER;
		1805	SAVETMPS;
		1806
		1807	PUSHMARK (SP);
		1808	PUTBACK;
		1809	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1810
		1811	FREETMPS;
		1812	LEAVE;
1579	}	1813	}
1580		1814
1581	static int	1815	static int
1582	api_ready (pTHX_ SV *coro_sv)	1816	api_ready (pTHX_ SV *coro_sv)
1583	{	1817	{
1584	struct coro *coro;
1585	SV *sv_hook;
1586	void (*xs_hook)(void);
1587
1588	if (SvROK (coro_sv))
1589	coro_sv = SvRV (coro_sv);
1590
1591	coro = SvSTATE (coro_sv);	1818	struct coro *coro = SvSTATE (coro_sv);
1592		1819
1593	if (coro->flags & CF_READY)	1820	if (coro->flags & CF_READY)
1594	return 0;	1821	return 0;
1595		1822
1596	coro->flags |= CF_READY;	1823	coro->flags |= CF_READY;
1597		1824
1598	sv_hook = coro_nready ? 0 : coro_readyhook;
1599	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1600
1601	coro_enq (aTHX_ coro);	1825	coro_enq (aTHX_ coro);
1602	++coro_nready;
1603		1826
1604	if (sv_hook)	1827	if (!coro_nready++)
1605	{	1828	if (coroapi.readyhook)
1606	dSP;	1829	coroapi.readyhook ();
1607
1608	ENTER;
1609	SAVETMPS;
1610
1611	PUSHMARK (SP);
1612	PUTBACK;
1613	call_sv (sv_hook, G_VOID | G_DISCARD);
1614
1615	FREETMPS;
1616	LEAVE;
1617	}
1618
1619	if (xs_hook)
1620	xs_hook ();
1621		1830
1622	return 1;	1831	return 1;
1623	}	1832	}
1624		1833
1625	static int	1834	static int
…		…
1648	static void	1857	static void
1649	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1858	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1650	{	1859	{
1651	for (;;)	1860	for (;;)
1652	{	1861	{
1653	SV *next_sv = coro_deq (aTHX);	1862	struct coro *next = coro_deq (aTHX);
1654		1863
1655	if (expect_true (next_sv))	1864	if (expect_true (next))
1656	{	1865	{
1657	struct coro *next = SvSTATE_hv (next_sv);
1658
1659	/* cannot transfer to destroyed coros, skip and look for next */	1866	/* cannot transfer to destroyed coros, skip and look for next */
1660	if (expect_false (next->flags & CF_DESTROYED))	1867	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1661	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1868	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1662	else	1869	else
1663	{	1870	{
1664	next->flags &= ~CF_READY;	1871	next->flags &= ~CF_READY;
1665	--coro_nready;	1872	--coro_nready;
1666		1873
…		…
1669	}	1876	}
1670	}	1877	}
1671	else	1878	else
1672	{	1879	{
1673	/* nothing to schedule: call the idle handler */	1880	/* nothing to schedule: call the idle handler */
		1881	if (SvROK (sv_idle)
		1882	&& SvOBJECT (SvRV (sv_idle)))
		1883	{
		1884	if (SvRV (sv_idle) == SvRV (coro_current))
		1885	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1886
		1887	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1888	api_ready (aTHX_ SvRV (sv_idle));
		1889	--coro_nready;
		1890	}
		1891	else
		1892	{
		1893	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1674	dSP;	1894	dSP;
1675		1895
1676	ENTER;	1896	ENTER;
1677	SAVETMPS;	1897	SAVETMPS;
1678		1898
1679	PUSHMARK (SP);	1899	PUSHMARK (SP);
1680	PUTBACK;	1900	PUTBACK;
1681	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1901	call_sv (sv_idle, G_VOID | G_DISCARD);
1682		1902
1683	FREETMPS;	1903	FREETMPS;
1684	LEAVE;	1904	LEAVE;
		1905	}
1685	}	1906	}
1686	}	1907	}
1687	}	1908	}
1688		1909
1689	INLINE void	1910	INLINE void
…		…
1760	static void	1981	static void
1761	api_trace (pTHX_ SV *coro_sv, int flags)	1982	api_trace (pTHX_ SV *coro_sv, int flags)
1762	{	1983	{
1763	struct coro *coro = SvSTATE (coro_sv);	1984	struct coro *coro = SvSTATE (coro_sv);
1764		1985
		1986	if (coro->flags & CF_RUNNING)
		1987	croak ("cannot enable tracing on a running coroutine, caught");
		1988
1765	if (flags & CC_TRACE)	1989	if (flags & CC_TRACE)
1766	{	1990	{
1767	if (!coro->cctx)	1991	if (!coro->cctx)
1768	coro->cctx = cctx_new_run ();	1992	coro->cctx = cctx_new_run ();
1769	else if (!(coro->cctx->flags & CC_TRACE))	1993	else if (!(coro->cctx->flags & CC_TRACE))
1770	croak ("cannot enable tracing on coroutine with custom stack,");	1994	croak ("cannot enable tracing on coroutine with custom stack, caught");
1771		1995
1772	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));	1996	coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1773	}	1997	}
1774	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1998	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1775	{	1999	{
…		…
1820	{	2044	{
1821	int i;	2045	int i;
1822	HV *hv = (HV *)SvRV (coro_current);	2046	HV *hv = (HV *)SvRV (coro_current);
1823	AV *av = newAV ();	2047	AV *av = newAV ();
1824		2048
		2049	/* items are actually not so common, so optimise for this case */
		2050	if (items)
		2051	{
1825	av_extend (av, items - 1);	2052	av_extend (av, items - 1);
		2053
1826	for (i = 0; i < items; ++i)	2054	for (i = 0; i < items; ++i)
1827	av_push (av, SvREFCNT_inc_NN (arg [i]));	2055	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2056	}
1828		2057
1829	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2058	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1830		2059
1831	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2060	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1832	api_ready (aTHX_ sv_manager);	2061	api_ready (aTHX_ sv_manager);
1833		2062
1834	frame->prepare = prepare_schedule;	2063	frame->prepare = prepare_schedule;
1835	frame->check = slf_check_repeat;	2064	frame->check = slf_check_repeat;
		2065
		2066	/* as a minor optimisation, we could unwind all stacks here */
		2067	/* but that puts extra pressure on pp_slf, and is not worth much */
		2068	/*coro_unwind_stacks (aTHX);*/
1836	}	2069	}
1837		2070
1838	/*****************************************************************************/	2071	/*****************************************************************************/
1839	/* async pool handler */	2072	/* async pool handler */
1840		2073
…		…
1918		2151
1919	static void	2152	static void
1920	coro_rouse_callback (pTHX_ CV *cv)	2153	coro_rouse_callback (pTHX_ CV *cv)
1921	{	2154	{
1922	dXSARGS;	2155	dXSARGS;
1923	SV *data = (SV *)GENSUB_ARG;	2156	SV *data = (SV *)S_GENSUB_ARG;
1924		2157
1925	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2158	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1926	{	2159	{
1927	/* first call, set args */	2160	/* first call, set args */
		2161	SV *coro = SvRV (data);
1928	AV *av = newAV ();	2162	AV *av = newAV ();
1929	SV *coro = SvRV (data);
1930		2163
1931	SvRV_set (data, (SV *)av);	2164	SvRV_set (data, (SV *)av);
1932	api_ready (aTHX_ coro);
1933	SvREFCNT_dec (coro);
1934		2165
1935	/* better take a full copy of the arguments */	2166	/* better take a full copy of the arguments */
1936	while (items--)	2167	while (items--)
1937	av_store (av, items, newSVsv (ST (items)));	2168	av_store (av, items, newSVsv (ST (items)));
		2169
		2170	api_ready (aTHX_ coro);
		2171	SvREFCNT_dec (coro);
1938	}	2172	}
1939		2173
1940	XSRETURN_EMPTY;	2174	XSRETURN_EMPTY;
1941	}	2175	}
1942		2176
…		…
1959		2193
1960	EXTEND (SP, AvFILLp (av) + 1);	2194	EXTEND (SP, AvFILLp (av) + 1);
1961	for (i = 0; i <= AvFILLp (av); ++i)	2195	for (i = 0; i <= AvFILLp (av); ++i)
1962	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2196	PUSHs (sv_2mortal (AvARRAY (av)[i]));
1963		2197
1964	/* we have stolen the elements, so ste length to zero and free */	2198	/* we have stolen the elements, so set length to zero and free */
1965	AvFILLp (av) = -1;	2199	AvFILLp (av) = -1;
1966	av_undef (av);	2200	av_undef (av);
1967		2201
1968	PUTBACK;	2202	PUTBACK;
1969	}	2203	}
…		…
1993	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2227	|| SvTYPE (SvRV (cb)) != SVt_PVCV
1994	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2228	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1995	croak ("Coro::rouse_wait called with illegal callback argument,");	2229	croak ("Coro::rouse_wait called with illegal callback argument,");
1996		2230
1997	{	2231	{
1998	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2232	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1999	SV *data = (SV *)GENSUB_ARG;	2233	SV *data = (SV *)S_GENSUB_ARG;
2000		2234
2001	frame->data = (void *)data;	2235	frame->data = (void *)data;
2002	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2236	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2003	frame->check = slf_check_rouse_wait;	2237	frame->check = slf_check_rouse_wait;
2004	}	2238	}
…		…
2008	coro_new_rouse_cb (pTHX)	2242	coro_new_rouse_cb (pTHX)
2009	{	2243	{
2010	HV *hv = (HV *)SvRV (coro_current);	2244	HV *hv = (HV *)SvRV (coro_current);
2011	struct coro *coro = SvSTATE_hv (hv);	2245	struct coro *coro = SvSTATE_hv (hv);
2012	SV *data = newRV_inc ((SV *)hv);	2246	SV *data = newRV_inc ((SV *)hv);
2013	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2247	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2014		2248
2015	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2249	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2016	SvREFCNT_dec (data); /* magicext increases the refcount */	2250	SvREFCNT_dec (data); /* magicext increases the refcount */
2017		2251
2018	SvREFCNT_dec (coro->rouse_cb);	2252	SvREFCNT_dec (coro->rouse_cb);
…		…
2243	if (PL_op->op_flags & OPf_STACKED)	2477	if (PL_op->op_flags & OPf_STACKED)
2244	{	2478	{
2245	if (items > slf_arga)	2479	if (items > slf_arga)
2246	{	2480	{
2247	slf_arga = items;	2481	slf_arga = items;
2248	free (slf_argv);	2482	Safefree (slf_argv);
2249	slf_argv = malloc (slf_arga * sizeof (SV *));	2483	New (0, slf_argv, slf_arga, SV *);
2250	}	2484	}
2251		2485
2252	slf_argc = items;	2486	slf_argc = items;
2253		2487
2254	for (i = 0; i < items; ++i)	2488	for (i = 0; i < items; ++i)
…		…
2259		2493
2260	PL_op->op_ppaddr = pp_slf;	2494	PL_op->op_ppaddr = pp_slf;
2261	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2495	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2262		2496
2263	PL_op = (OP *)&slf_restore;	2497	PL_op = (OP *)&slf_restore;
		2498	}
		2499
		2500	/*****************************************************************************/
		2501	/* dynamic wind */
		2502
		2503	static void
		2504	on_enterleave_call (pTHX_ SV *cb)
		2505	{
		2506	dSP;
		2507
		2508	PUSHSTACK;
		2509
		2510	PUSHMARK (SP);
		2511	PUTBACK;
		2512	call_sv (cb, G_VOID | G_DISCARD);
		2513	SPAGAIN;
		2514
		2515	POPSTACK;
		2516	}
		2517
		2518	static SV *
		2519	coro_avp_pop_and_free (pTHX_ AV **avp)
		2520	{
		2521	AV *av = *avp;
		2522	SV *res = av_pop (av);
		2523
		2524	if (AvFILLp (av) < 0)
		2525	{
		2526	*avp = 0;
		2527	SvREFCNT_dec (av);
		2528	}
		2529
		2530	return res;
		2531	}
		2532
		2533	static void
		2534	coro_pop_on_enter (pTHX_ void *coro)
		2535	{
		2536	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2537	SvREFCNT_dec (cb);
		2538	}
		2539
		2540	static void
		2541	coro_pop_on_leave (pTHX_ void *coro)
		2542	{
		2543	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2544	on_enterleave_call (aTHX_ sv_2mortal (cb));
2264	}	2545	}
2265		2546
2266	/*****************************************************************************/	2547	/*****************************************************************************/
2267	/* PerlIO::cede */	2548	/* PerlIO::cede */
2268		2549
…		…
2342	/* Coro::Semaphore & Coro::Signal */	2623	/* Coro::Semaphore & Coro::Signal */
2343		2624
2344	static SV *	2625	static SV *
2345	coro_waitarray_new (pTHX_ int count)	2626	coro_waitarray_new (pTHX_ int count)
2346	{	2627	{
2347	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2628	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2348	AV *av = newAV ();	2629	AV *av = newAV ();
2349	SV **ary;	2630	SV **ary;
2350		2631
2351	/* unfortunately, building manually saves memory */	2632	/* unfortunately, building manually saves memory */
2352	Newx (ary, 2, SV *);	2633	Newx (ary, 2, SV *);
2353	AvALLOC (av) = ary;	2634	AvALLOC (av) = ary;
		2635	#if PERL_VERSION_ATLEAST (5,10,0)
2354	/*AvARRAY (av) = ary;*/	2636	AvARRAY (av) = ary;
		2637	#else
2355	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */	2638	/* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
		2639	/* -DDEBUGGING flags this as a bug, despite it perfectly working */
		2640	SvPVX ((SV *)av) = (char *)ary;
		2641	#endif
2356	AvMAX (av) = 1;	2642	AvMAX (av) = 1;
2357	AvFILLp (av) = 0;	2643	AvFILLp (av) = 0;
2358	ary [0] = newSViv (count);	2644	ary [0] = newSViv (count);
2359		2645
2360	return newRV_noinc ((SV *)av);	2646	return newRV_noinc ((SV *)av);
…		…
2489	{	2775	{
2490	if (items >= 2)	2776	if (items >= 2)
2491	{	2777	{
2492	/* callback form */	2778	/* callback form */
2493	AV *av = (AV *)SvRV (arg [0]);	2779	AV *av = (AV *)SvRV (arg [0]);
2494	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2780	SV *cb_cv = s_get_cv_croak (arg [1]);
2495		2781
2496	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2782	av_push (av, SvREFCNT_inc_NN (cb_cv));
2497		2783
2498	if (SvIVX (AvARRAY (av)[0]) > 0)	2784	if (SvIVX (AvARRAY (av)[0]) > 0)
2499	coro_semaphore_adjust (aTHX_ av, 0);	2785	coro_semaphore_adjust (aTHX_ av, 0);
2500		2786
2501	frame->prepare = prepare_nop;	2787	frame->prepare = prepare_nop;
…		…
2525	AvARRAY (av)[0] = AvARRAY (av)[1];	2811	AvARRAY (av)[0] = AvARRAY (av)[1];
2526	AvARRAY (av)[1] = cb;	2812	AvARRAY (av)[1] = cb;
2527		2813
2528	cb = av_shift (av);	2814	cb = av_shift (av);
2529		2815
		2816	if (SvTYPE (cb) == SVt_PVCV)
		2817	{
		2818	dSP;
		2819	PUSHMARK (SP);
		2820	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2821	PUTBACK;
		2822	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2823	}
		2824	else
		2825	{
2530	api_ready (aTHX_ cb);	2826	api_ready (aTHX_ cb);
2531	sv_setiv (cb, 0); /* signal waiter */	2827	sv_setiv (cb, 0); /* signal waiter */
		2828	}
		2829
2532	SvREFCNT_dec (cb);	2830	SvREFCNT_dec (cb);
2533		2831
2534	--count;	2832	--count;
2535	}	2833	}
2536	}	2834	}
…		…
2545	static void	2843	static void
2546	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2844	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2547	{	2845	{
2548	AV *av = (AV *)SvRV (arg [0]);	2846	AV *av = (AV *)SvRV (arg [0]);
2549		2847
		2848	if (items >= 2)
		2849	{
		2850	SV *cb_cv = s_get_cv_croak (arg [1]);
		2851	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2852
2550	if (SvIVX (AvARRAY (av)[0]))	2853	if (SvIVX (AvARRAY (av)[0]))
		2854	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
		2855
		2856	frame->prepare = prepare_nop;
		2857	frame->check = slf_check_nop;
		2858	}
		2859	else if (SvIVX (AvARRAY (av)[0]))
2551	{	2860	{
2552	SvIVX (AvARRAY (av)[0]) = 0;	2861	SvIVX (AvARRAY (av)[0]) = 0;
2553	frame->prepare = prepare_nop;	2862	frame->prepare = prepare_nop;
2554	frame->check = slf_check_nop;	2863	frame->check = slf_check_nop;
2555	}	2864	}
2556	else	2865	else
2557	{	2866	{
2558	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2867	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2559		2868
2560	av_push (av, waiter);	2869	av_push (av, waiter);
2561		2870
2562	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2871	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2563	frame->prepare = prepare_schedule;	2872	frame->prepare = prepare_schedule;
…		…
2581		2890
2582	static void	2891	static void
2583	coro_aio_callback (pTHX_ CV *cv)	2892	coro_aio_callback (pTHX_ CV *cv)
2584	{	2893	{
2585	dXSARGS;	2894	dXSARGS;
2586	AV *state = (AV *)GENSUB_ARG;	2895	AV *state = (AV *)S_GENSUB_ARG;
2587	SV *coro = av_pop (state);	2896	SV *coro = av_pop (state);
2588	SV *data_sv = newSV (sizeof (struct io_state));	2897	SV *data_sv = newSV (sizeof (struct io_state));
2589		2898
2590	av_extend (state, items - 1);	2899	av_extend (state, items - 1);
2591		2900
…		…
2705		3014
2706	for (i = 0; i < items; ++i)	3015	for (i = 0; i < items; ++i)
2707	PUSHs (arg [i]);	3016	PUSHs (arg [i]);
2708		3017
2709	/* now push the callback closure */	3018	/* now push the callback closure */
2710	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	3019	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2711		3020
2712	/* now call the AIO function - we assume our request is uncancelable */	3021	/* now call the AIO function - we assume our request is uncancelable */
2713	PUTBACK;	3022	PUTBACK;
2714	call_sv ((SV *)req, G_VOID | G_DISCARD);	3023	call_sv ((SV *)req, G_VOID | G_DISCARD);
2715	}	3024	}
2716		3025
2717	/* now that the requets is going, we loop toll we have a result */	3026	/* now that the request is going, we loop till we have a result */
2718	frame->data = (void *)state;	3027	frame->data = (void *)state;
2719	frame->prepare = prepare_schedule;	3028	frame->prepare = prepare_schedule;
2720	frame->check = slf_check_aio_req;	3029	frame->check = slf_check_aio_req;
2721	}	3030	}
2722		3031
…		…
2733	/*****************************************************************************/	3042	/*****************************************************************************/
2734		3043
2735	#if CORO_CLONE	3044	#if CORO_CLONE
2736	# include "clone.c"	3045	# include "clone.c"
2737	#endif	3046	#endif
		3047
		3048	/*****************************************************************************/
		3049
		3050	static SV *
		3051	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3052	{
		3053	SV *coro_sv;
		3054	struct coro *coro;
		3055	MAGIC *mg;
		3056	HV *hv;
		3057	SV *cb;
		3058	int i;
		3059
		3060	if (argc > 0)
		3061	{
		3062	cb = s_get_cv_croak (argv [0]);
		3063
		3064	if (!is_coro)
		3065	{
		3066	if (CvISXSUB (cb))
		3067	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3068
		3069	if (!CvROOT (cb))
		3070	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3071	}
		3072	}
		3073
		3074	Newz (0, coro, 1, struct coro);
		3075	coro->args = newAV ();
		3076	coro->flags = CF_NEW;
		3077
		3078	if (coro_first) coro_first->prev = coro;
		3079	coro->next = coro_first;
		3080	coro_first = coro;
		3081
		3082	coro->hv = hv = newHV ();
		3083	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3084	mg->mg_flags |= MGf_DUP;
		3085	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3086
		3087	if (argc > 0)
		3088	{
		3089	av_extend (coro->args, argc + is_coro - 1);
		3090
		3091	if (is_coro)
		3092	{
		3093	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3094	cb = (SV *)cv_coro_run;
		3095	}
		3096
		3097	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3098
		3099	for (i = 1; i < argc; i++)
		3100	av_push (coro->args, newSVsv (argv [i]));
		3101	}
		3102
		3103	return coro_sv;
		3104	}
2738		3105
2739	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3106	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2740		3107
2741	PROTOTYPES: DISABLE	3108	PROTOTYPES: DISABLE
2742		3109
…		…
2795	coroapi.prepare_nop = prepare_nop;	3162	coroapi.prepare_nop = prepare_nop;
2796	coroapi.prepare_schedule = prepare_schedule;	3163	coroapi.prepare_schedule = prepare_schedule;
2797	coroapi.prepare_cede = prepare_cede;	3164	coroapi.prepare_cede = prepare_cede;
2798	coroapi.prepare_cede_notself = prepare_cede_notself;	3165	coroapi.prepare_cede_notself = prepare_cede_notself;
2799		3166
2800	{	3167	time_init (aTHX);
2801	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2802		3168
2803	if (!svp) croak ("Time::HiRes is required");
2804	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2805
2806	nvtime = INT2PTR (double (*)(), SvIV (*svp));
2807	}
2808
2809	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3169	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2810	}	3170	}
2811		3171
2812	SV *	3172	SV *
2813	new (char *klass, ...)	3173	new (SV *klass, ...)
2814	ALIAS:	3174	ALIAS:
2815	Coro::new = 1	3175	Coro::new = 1
2816	CODE:	3176	CODE:
2817	{	3177	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2818	struct coro *coro;	3178	OUTPUT:
2819	MAGIC *mg;
2820	HV *hv;
2821	CV *cb;
2822	int i;
2823
2824	if (items > 1)
2825	{
2826	cb = coro_sv_2cv (aTHX_ ST (1));
2827
2828	if (!ix)
2829	{
2830	if (CvISXSUB (cb))
2831	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2832
2833	if (!CvROOT (cb))
2834	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2835	}
2836	}
2837
2838	Newz (0, coro, 1, struct coro);
2839	coro->args = newAV ();
2840	coro->flags = CF_NEW;
2841
2842	if (coro_first) coro_first->prev = coro;
2843	coro->next = coro_first;
2844	coro_first = coro;
2845
2846	coro->hv = hv = newHV ();
2847	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2848	mg->mg_flags |= MGf_DUP;
2849	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2850
2851	if (items > 1)
2852	{
2853	av_extend (coro->args, items - 1 + ix - 1);
2854
2855	if (ix)
2856	{
2857	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2858	cb = cv_coro_run;
2859	}
2860
2861	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2862
2863	for (i = 2; i < items; i++)
2864	av_push (coro->args, newSVsv (ST (i)));
2865	}
2866	}
2867	OUTPUT:
2868	RETVAL	3179	RETVAL
2869		3180
2870	void	3181	void
2871	transfer (...)	3182	transfer (...)
2872	PROTOTYPE: $$	3183	PROTOTYPE: $$
…		…
2889	SV *	3200	SV *
2890	clone (Coro::State coro)	3201	clone (Coro::State coro)
2891	CODE:	3202	CODE:
2892	{	3203	{
2893	#if CORO_CLONE	3204	#if CORO_CLONE
2894	struct coro *ncoro = coro_clone (coro);	3205	struct coro *ncoro = coro_clone (aTHX_ coro);
2895	MAGIC *mg;	3206	MAGIC *mg;
2896	/* TODO: too much duplication */	3207	/* TODO: too much duplication */
2897	ncoro->hv = newHV ();	3208	ncoro->hv = newHV ();
2898	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);	3209	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2899	mg->mg_flags |= MGf_DUP;	3210	mg->mg_flags |= MGf_DUP;
…		…
2961	eval = 1	3272	eval = 1
2962	CODE:	3273	CODE:
2963	{	3274	{
2964	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3275	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2965	{	3276	{
2966	struct coro temp;	3277	struct coro *current = SvSTATE_current;
2967		3278
2968	if (!(coro->flags & CF_RUNNING))	3279	if (current != coro)
2969	{	3280	{
2970	PUTBACK;	3281	PUTBACK;
2971	save_perl (aTHX_ &temp);	3282	save_perl (aTHX_ current);
2972	load_perl (aTHX_ coro);	3283	load_perl (aTHX_ coro);
		3284	SPAGAIN;
2973	}	3285	}
2974		3286
2975	{
2976	dSP;
2977	ENTER;
2978	SAVETMPS;
2979	PUTBACK;
2980	PUSHSTACK;	3287	PUSHSTACK;
		3288
2981	PUSHMARK (SP);	3289	PUSHMARK (SP);
		3290	PUTBACK;
2982		3291
2983	if (ix)	3292	if (ix)
2984	eval_sv (coderef, 0);	3293	eval_sv (coderef, 0);
2985	else	3294	else
2986	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3295	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2987		3296
2988	POPSTACK;	3297	POPSTACK;
2989	SPAGAIN;	3298	SPAGAIN;
2990	FREETMPS;
2991	LEAVE;
2992	PUTBACK;
2993	}
2994		3299
2995	if (!(coro->flags & CF_RUNNING))	3300	if (current != coro)
2996	{	3301	{
		3302	PUTBACK;
2997	save_perl (aTHX_ coro);	3303	save_perl (aTHX_ coro);
2998	load_perl (aTHX_ &temp);	3304	load_perl (aTHX_ current);
2999	SPAGAIN;	3305	SPAGAIN;
3000	}	3306	}
3001	}	3307	}
3002	}	3308	}
3003		3309
…		…
3007	ALIAS:	3313	ALIAS:
3008	is_ready = CF_READY	3314	is_ready = CF_READY
3009	is_running = CF_RUNNING	3315	is_running = CF_RUNNING
3010	is_new = CF_NEW	3316	is_new = CF_NEW
3011	is_destroyed = CF_DESTROYED	3317	is_destroyed = CF_DESTROYED
		3318	is_suspended = CF_SUSPENDED
3012	CODE:	3319	CODE:
3013	RETVAL = boolSV (coro->flags & ix);	3320	RETVAL = boolSV (coro->flags & ix);
3014	OUTPUT:	3321	OUTPUT:
3015	RETVAL	3322	RETVAL
3016		3323
3017	void	3324	void
3018	throw (Coro::State self, SV *throw = &PL_sv_undef)	3325	throw (Coro::State self, SV *exception = &PL_sv_undef)
3019	PROTOTYPE: $;$	3326	PROTOTYPE: $;$
3020	CODE:	3327	CODE:
3021	{	3328	{
3022	struct coro *current = SvSTATE_current;	3329	struct coro *current = SvSTATE_current;
3023	SV **throwp = self == current ? &CORO_THROW : &self->except;	3330	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3024	SvREFCNT_dec (*throwp);	3331	SvREFCNT_dec (*exceptionp);
3025	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3332	SvGETMAGIC (exception);
		3333	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3026	}	3334	}
3027		3335
3028	void	3336	void
3029	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3337	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3030	PROTOTYPE: $;$	3338	PROTOTYPE: $;$
…		…
3032		3340
3033	SV *	3341	SV *
3034	has_cctx (Coro::State coro)	3342	has_cctx (Coro::State coro)
3035	PROTOTYPE: $	3343	PROTOTYPE: $
3036	CODE:	3344	CODE:
3037	RETVAL = boolSV (!!coro->cctx);	3345	/* maybe manage the running flag differently */
		3346	RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3038	OUTPUT:	3347	OUTPUT:
3039	RETVAL	3348	RETVAL
3040		3349
3041	int	3350	int
3042	is_traced (Coro::State coro)	3351	is_traced (Coro::State coro)
…		…
3062		3371
3063	void	3372	void
3064	force_cctx ()	3373	force_cctx ()
3065	PROTOTYPE:	3374	PROTOTYPE:
3066	CODE:	3375	CODE:
3067	SvSTATE_current->cctx->idle_sp = 0;	3376	cctx_current->idle_sp = 0;
3068		3377
3069	void	3378	void
3070	swap_defsv (Coro::State self)	3379	swap_defsv (Coro::State self)
3071	PROTOTYPE: $	3380	PROTOTYPE: $
3072	ALIAS:	3381	ALIAS:
…		…
3080	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3389	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3081		3390
3082	SV *tmp = *src; *src = *dst; *dst = tmp;	3391	SV *tmp = *src; *src = *dst; *dst = tmp;
3083	}	3392	}
3084		3393
		3394	void
		3395	cancel (Coro::State self)
		3396	CODE:
		3397	coro_state_destroy (aTHX_ self);
		3398	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3399
		3400
		3401	SV *
		3402	enable_times (int enabled = enable_times)
		3403	CODE:
		3404	{
		3405	RETVAL = boolSV (enable_times);
		3406
		3407	if (enabled != enable_times)
		3408	{
		3409	enable_times = enabled;
		3410
		3411	coro_times_update ();
		3412	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3413	}
		3414	}
		3415	OUTPUT:
		3416	RETVAL
		3417
		3418	void
		3419	times (Coro::State self)
		3420	PPCODE:
		3421	{
		3422	struct coro *current = SvSTATE (coro_current);
		3423
		3424	if (expect_false (current == self))
		3425	{
		3426	coro_times_update ();
		3427	coro_times_add (SvSTATE (coro_current));
		3428	}
		3429
		3430	EXTEND (SP, 2);
		3431	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3432	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3433
		3434	if (expect_false (current == self))
		3435	coro_times_sub (SvSTATE (coro_current));
		3436	}
		3437
		3438	void
		3439	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3440	CODE:
		3441	{
		3442	struct coro *current = SvSTATE_current;
		3443
		3444	if (current == coro)
		3445	SWAP_SVS (current);
		3446
		3447	if (!coro->swap_sv)
		3448	coro->swap_sv = newAV ();
		3449
		3450	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3451	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3452
		3453	if (current == coro)
		3454	SWAP_SVS (current);
		3455	}
		3456
3085		3457
3086	MODULE = Coro::State PACKAGE = Coro	3458	MODULE = Coro::State PACKAGE = Coro
3087		3459
3088	BOOT:	3460	BOOT:
3089	{	3461	{
3090	int i;
3091
3092	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3462	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3093	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3463	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3094	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);	3464	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3095	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3465	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3096	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3466	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3097	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3467	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3098	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3468	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3099	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3469	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3470	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3100		3471
3101	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3472	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3102	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3473	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3103	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3474	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3104	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3475	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3105		3476
3106	coro_stash = gv_stashpv ("Coro", TRUE);	3477	coro_stash = gv_stashpv ("Coro", TRUE);
3107		3478
3108	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3479	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3109	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3480	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3110	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3481	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3111	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3482	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3112	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3483	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3113	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3484	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3114
3115	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3116	coro_ready[i] = newAV ();
3117		3485
3118	{	3486	{
3119	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3487	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3120		3488
3121	coroapi.schedule = api_schedule;	3489	coroapi.schedule = api_schedule;
…		…
3131	sv_setiv (sv, (IV)&coroapi);	3499	sv_setiv (sv, (IV)&coroapi);
3132	SvREADONLY_on (sv);	3500	SvREADONLY_on (sv);
3133	}	3501	}
3134	}	3502	}
3135		3503
		3504	SV *
		3505	async (...)
		3506	PROTOTYPE: &@
		3507	CODE:
		3508	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3509	api_ready (aTHX_ RETVAL);
		3510	OUTPUT:
		3511	RETVAL
		3512
3136	void	3513	void
3137	terminate (...)	3514	terminate (...)
3138	CODE:	3515	CODE:
3139	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3516	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3140		3517
…		…
3160		3537
3161	void	3538	void
3162	cede_notself (...)	3539	cede_notself (...)
3163	CODE:	3540	CODE:
3164	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3541	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3165
3166	void
3167	_cancel (Coro::State self)
3168	CODE:
3169	coro_state_destroy (aTHX_ self);
3170	coro_call_on_destroy (aTHX_ self);
3171		3542
3172	void	3543	void
3173	_set_current (SV *current)	3544	_set_current (SV *current)
3174	PROTOTYPE: $	3545	PROTOTYPE: $
3175	CODE:	3546	CODE:
…		…
3179	void	3550	void
3180	_set_readyhook (SV *hook)	3551	_set_readyhook (SV *hook)
3181	PROTOTYPE: $	3552	PROTOTYPE: $
3182	CODE:	3553	CODE:
3183	SvREFCNT_dec (coro_readyhook);	3554	SvREFCNT_dec (coro_readyhook);
		3555	SvGETMAGIC (hook);
		3556	if (SvOK (hook))
		3557	{
3184	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3558	coro_readyhook = newSVsv (hook);
		3559	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3560	}
		3561	else
		3562	{
		3563	coro_readyhook = 0;
		3564	CORO_READYHOOK = 0;
		3565	}
3185		3566
3186	int	3567	int
3187	prio (Coro::State coro, int newprio = 0)	3568	prio (Coro::State coro, int newprio = 0)
3188	PROTOTYPE: $;$	3569	PROTOTYPE: $;$
3189	ALIAS:	3570	ALIAS:
…		…
3195	if (items > 1)	3576	if (items > 1)
3196	{	3577	{
3197	if (ix)	3578	if (ix)
3198	newprio = coro->prio - newprio;	3579	newprio = coro->prio - newprio;
3199		3580
3200	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3581	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3201	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3582	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3202		3583
3203	coro->prio = newprio;	3584	coro->prio = newprio;
3204	}	3585	}
3205	}	3586	}
3206	OUTPUT:	3587	OUTPUT:
…		…
3221	RETVAL = coro_nready;	3602	RETVAL = coro_nready;
3222	OUTPUT:	3603	OUTPUT:
3223	RETVAL	3604	RETVAL
3224		3605
3225	void	3606	void
		3607	suspend (Coro::State self)
		3608	PROTOTYPE: $
		3609	CODE:
		3610	self->flags |= CF_SUSPENDED;
		3611
		3612	void
		3613	resume (Coro::State self)
		3614	PROTOTYPE: $
		3615	CODE:
		3616	self->flags &= ~CF_SUSPENDED;
		3617
		3618	void
3226	_pool_handler (...)	3619	_pool_handler (...)
3227	CODE:	3620	CODE:
3228	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3621	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3229		3622
3230	void	3623	void
…		…
3241	for (i = 1; i < items; ++i)	3634	for (i = 1; i < items; ++i)
3242	av_push (av, SvREFCNT_inc_NN (ST (i)));	3635	av_push (av, SvREFCNT_inc_NN (ST (i)));
3243		3636
3244	if ((SV *)hv == &PL_sv_undef)	3637	if ((SV *)hv == &PL_sv_undef)
3245	{	3638	{
3246	PUSHMARK (SP);	3639	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3247	EXTEND (SP, 2);
3248	PUSHs (sv_Coro);
3249	PUSHs ((SV *)cv_pool_handler);
3250	PUTBACK;
3251	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3252	SPAGAIN;
3253
3254	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3640	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3641	SvREFCNT_dec (sv);
3255	}	3642	}
3256		3643
3257	{	3644	{
3258	struct coro *coro = SvSTATE_hv (hv);	3645	struct coro *coro = SvSTATE_hv (hv);
3259		3646
…		…
3283	rouse_wait (...)	3670	rouse_wait (...)
3284	PROTOTYPE: ;$	3671	PROTOTYPE: ;$
3285	PPCODE:	3672	PPCODE:
3286	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3673	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3287		3674
		3675	void
		3676	on_enter (SV *block)
		3677	ALIAS:
		3678	on_leave = 1
		3679	PROTOTYPE: &
		3680	CODE:
		3681	{
		3682	struct coro *coro = SvSTATE_current;
		3683	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3684
		3685	block = s_get_cv_croak (block);
		3686
		3687	if (!*avp)
		3688	*avp = newAV ();
		3689
		3690	av_push (*avp, SvREFCNT_inc (block));
		3691
		3692	if (!ix)
		3693	on_enterleave_call (aTHX_ block);
		3694
		3695	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3696	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3697	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3698	}
		3699
3288		3700
3289	MODULE = Coro::State PACKAGE = PerlIO::cede	3701	MODULE = Coro::State PACKAGE = PerlIO::cede
3290		3702
3291	BOOT:	3703	BOOT:
3292	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3704	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3295	MODULE = Coro::State PACKAGE = Coro::Semaphore	3707	MODULE = Coro::State PACKAGE = Coro::Semaphore
3296		3708
3297	SV *	3709	SV *
3298	new (SV *klass, SV *count = 0)	3710	new (SV *klass, SV *count = 0)
3299	CODE:	3711	CODE:
		3712	{
		3713	int semcnt = 1;
		3714
		3715	if (count)
		3716	{
		3717	SvGETMAGIC (count);
		3718
		3719	if (SvOK (count))
		3720	semcnt = SvIV (count);
		3721	}
		3722
3300	RETVAL = sv_bless (	3723	RETVAL = sv_bless (
3301	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3724	coro_waitarray_new (aTHX_ semcnt),
3302	GvSTASH (CvGV (cv))	3725	GvSTASH (CvGV (cv))
3303	);	3726	);
		3727	}
3304	OUTPUT:	3728	OUTPUT:
3305	RETVAL	3729	RETVAL
3306		3730
3307	# helper for Coro::Channel	3731	# helper for Coro::Channel and others
3308	SV *	3732	SV *
3309	_alloc (int count)	3733	_alloc (int count)
3310	CODE:	3734	CODE:
3311	RETVAL = coro_waitarray_new (aTHX_ count);	3735	RETVAL = coro_waitarray_new (aTHX_ count);
3312	OUTPUT:	3736	OUTPUT:
…		…
3370	for (i = 1; i <= wcount; ++i)	3794	for (i = 1; i <= wcount; ++i)
3371	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3795	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3372	}	3796	}
3373	}	3797	}
3374		3798
		3799	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3800
		3801	void
		3802	_may_delete (SV *sem, int count, int extra_refs)
		3803	PPCODE:
		3804	{
		3805	AV *av = (AV *)SvRV (sem);
		3806
		3807	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3808	&& AvFILLp (av) == 0 /* no waiters, just count */
		3809	&& SvIV (AvARRAY (av)[0]) == count)
		3810	XSRETURN_YES;
		3811
		3812	XSRETURN_NO;
		3813	}
		3814
3375	MODULE = Coro::State PACKAGE = Coro::Signal	3815	MODULE = Coro::State PACKAGE = Coro::Signal
3376		3816
3377	SV *	3817	SV *
3378	new (SV *klass)	3818	new (SV *klass)
3379	CODE:	3819	CODE:
…		…
3450		3890
3451	void	3891	void
3452	_register (char *target, char *proto, SV *req)	3892	_register (char *target, char *proto, SV *req)
3453	CODE:	3893	CODE:
3454	{	3894	{
3455	CV *req_cv = coro_sv_2cv (aTHX_ req);	3895	SV *req_cv = s_get_cv_croak (req);
3456	/* newXSproto doesn't return the CV on 5.8 */	3896	/* newXSproto doesn't return the CV on 5.8 */
3457	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3897	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3458	sv_setpv ((SV *)slf_cv, proto);	3898	sv_setpv ((SV *)slf_cv, proto);
3459	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3899	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3460	}	3900	}
3461		3901
		3902	MODULE = Coro::State PACKAGE = Coro::Select
		3903
		3904	void
		3905	patch_pp_sselect ()
		3906	CODE:
		3907	if (!coro_old_pp_sselect)
		3908	{
		3909	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3910	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3911	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3912	}
		3913
		3914	void
		3915	unpatch_pp_sselect ()
		3916	CODE:
		3917	if (coro_old_pp_sselect)
		3918	{
		3919	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3920	coro_old_pp_sselect = 0;
		3921	}
		3922

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