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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.364 by root, Thu Jul 16 02:19:17 2009 UTC vs.
Revision 1.399 by root, Thu May 12 23:24:28 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
…		…
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
…		…
116	static void (*u2time)(pTHX_ UV ret[2]);	126	static void (*u2time)(pTHX_ UV ret[2]);
117		127
118	/* we hijack an hopefully unused CV flag for our purposes */	128	/* we hijack an hopefully unused CV flag for our purposes */
119	#define CVf_SLF 0x4000	129	#define CVf_SLF 0x4000
120	static OP *pp_slf (pTHX);	130	static OP *pp_slf (pTHX);
		131	static void slf_destroy (pTHX_ struct coro *coro);
121		132
122	static U32 cctx_gen;	133	static U32 cctx_gen;
123	static size_t cctx_stacksize = CORO_STACKSIZE;	134	static size_t cctx_stacksize = CORO_STACKSIZE;
124	static struct CoroAPI coroapi;	135	static struct CoroAPI coroapi;
125	static AV *main_mainstack; /* used to differentiate between $main and others */	136	static AV *main_mainstack; /* used to differentiate between $main and others */
…		…
142	static SV *sv_pool_size;	153	static SV *sv_pool_size;
143	static SV *sv_async_pool_idle; /* description string */	154	static SV *sv_async_pool_idle; /* description string */
144	static AV *av_async_pool; /* idle pool */	155	static AV *av_async_pool; /* idle pool */
145	static SV *sv_Coro; /* class string */	156	static SV *sv_Coro; /* class string */
146	static CV *cv_pool_handler;	157	static CV *cv_pool_handler;
147	static CV *cv_coro_state_new;
148		158
149	/* Coro::AnyEvent */	159	/* Coro::AnyEvent */
150	static SV *sv_activity;	160	static SV *sv_activity;
151		161
152	/* enable processtime/realtime profiling */	162	/* enable processtime/realtime profiling */
…		…
156	static char times_valid;	166	static char times_valid;
157		167
158	static struct coro_cctx *cctx_first;	168	static struct coro_cctx *cctx_first;
159	static int cctx_count, cctx_idle;	169	static int cctx_count, cctx_idle;
160		170
161	enum {	171	enum
		172	{
162	CC_MAPPED = 0x01,	173	CC_MAPPED = 0x01,
163	CC_NOREUSE = 0x02, /* throw this away after tracing */	174	CC_NOREUSE = 0x02, /* throw this away after tracing */
164	CC_TRACE = 0x04,	175	CC_TRACE = 0x04,
165	CC_TRACE_SUB = 0x08, /* trace sub calls */	176	CC_TRACE_SUB = 0x08, /* trace sub calls */
166	CC_TRACE_LINE = 0x10, /* trace each statement */	177	CC_TRACE_LINE = 0x10, /* trace each statement */
…		…
187	int valgrind_id;	198	int valgrind_id;
188	#endif	199	#endif
189	unsigned char flags;	200	unsigned char flags;
190	} coro_cctx;	201	} coro_cctx;
191		202
192	coro_cctx *cctx_current; /* the currently running cctx */	203	static coro_cctx *cctx_current; /* the currently running cctx */
193		204
194	/*****************************************************************************/	205	/*****************************************************************************/
195		206
		207	static MGVTBL coro_state_vtbl;
		208
196	enum {	209	enum
		210	{
197	CF_RUNNING = 0x0001, /* coroutine is running */	211	CF_RUNNING = 0x0001, /* coroutine is running */
198	CF_READY = 0x0002, /* coroutine is ready */	212	CF_READY = 0x0002, /* coroutine is ready */
199	CF_NEW = 0x0004, /* has never been switched to */	213	CF_NEW = 0x0004, /* has never been switched to */
200	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	214	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
201	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */	215	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
		216	CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
202	};	217	};
203		218
204	/* the structure where most of the perl state is stored, overlaid on the cxstack */	219	/* the structure where most of the perl state is stored, overlaid on the cxstack */
205	typedef struct	220	typedef struct
206	{	221	{
…		…
212	#define VAR(name,type) type name;	227	#define VAR(name,type) type name;
213	# include "state.h"	228	# include "state.h"
214	#undef VAR	229	#undef VAR
215	} perl_slots;	230	} perl_slots;
216		231
		232	// how many context stack entries do we need for perl_slots
217	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))	233	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
218		234
219	/* this is a structure representing a perl-level coroutine */	235	/* this is a structure representing a perl-level coroutine */
220	struct coro {	236	struct coro
		237	{
221	/* the C coroutine allocated to this perl coroutine, if any */	238	/* the C coroutine allocated to this perl coroutine, if any */
222	coro_cctx *cctx;	239	coro_cctx *cctx;
223		240
224	/* ready queue */	241	/* ready queue */
225	struct coro *next_ready;	242	struct coro *next_ready;
…		…
227	/* state data */	244	/* state data */
228	struct CoroSLF slf_frame; /* saved slf frame */	245	struct CoroSLF slf_frame; /* saved slf frame */
229	AV *mainstack;	246	AV *mainstack;
230	perl_slots *slot; /* basically the saved sp */	247	perl_slots *slot; /* basically the saved sp */
231		248
232	CV *startcv; /* the CV to execute */	249	CV *startcv; /* the CV to execute */
233	AV *args; /* data associated with this coroutine (initial args) */	250	AV *args; /* data associated with this coroutine (initial args) */
234	int refcnt; /* coroutines are refcounted, yes */
235	int flags; /* CF_ flags */	251	int flags; /* CF_ flags */
236	HV *hv; /* the perl hash associated with this coro, if any */	252	HV *hv; /* the perl hash associated with this coro, if any */
237	void (*on_destroy)(pTHX_ struct coro *coro);
238		253
239	/* statistics */	254	/* statistics */
240	int usecount; /* number of transfers to this coro */	255	int usecount; /* number of transfers to this coro */
241		256
242	/* coro process data */	257	/* coro process data */
243	int prio;	258	int prio;
244	SV *except; /* exception to be thrown */	259	SV *except; /* exception to be thrown */
245	SV *rouse_cb;	260	SV *rouse_cb; /* last rouse callback */
		261	AV *on_destroy; /* callbacks or coros to notify on destroy */
		262	AV *status; /* the exit status list */
246		263
247	/* async_pool */	264	/* async_pool */
248	SV *saved_deffh;	265	SV *saved_deffh;
249	SV *invoke_cb;	266	SV *invoke_cb;
250	AV *invoke_av;	267	AV *invoke_av;
251		268
252	/* on_enter/on_leave */	269	/* on_enter/on_leave */
253	AV *on_enter;	270	AV *on_enter;
254	AV *on_leave;	271	AV *on_leave;
255		272
		273	/* swap_sv */
		274	AV *swap_sv;
		275
256	/* times */	276	/* times */
257	coro_ts t_cpu, t_real;	277	coro_ts t_cpu, t_real;
258		278
259	/* linked list */	279	/* linked list */
260	struct coro *next, *prev;	280	struct coro *next, *prev;
…		…
263	typedef struct coro *Coro__State;	283	typedef struct coro *Coro__State;
264	typedef struct coro *Coro__State_or_hashref;	284	typedef struct coro *Coro__State_or_hashref;
265		285
266	/* the following variables are effectively part of the perl context */	286	/* the following variables are effectively part of the perl context */
267	/* and get copied between struct coro and these variables */	287	/* and get copied between struct coro and these variables */
268	/* the mainr easonw e don't support windows process emulation */	288	/* the main reason we don't support windows process emulation */
269	static struct CoroSLF slf_frame; /* the current slf frame */	289	static struct CoroSLF slf_frame; /* the current slf frame */
270		290
271	/** Coro ********************************************************************/	291	/** Coro ********************************************************************/
272		292
273	#define CORO_PRIO_MAX 3	293	#define CORO_PRIO_MAX 3
…		…
279		299
280	/* for Coro.pm */	300	/* for Coro.pm */
281	static SV *coro_current;	301	static SV *coro_current;
282	static SV *coro_readyhook;	302	static SV *coro_readyhook;
283	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */	303	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
284	static CV *cv_coro_run, *cv_coro_terminate;	304	static CV *cv_coro_run;
285	static struct coro *coro_first;	305	static struct coro *coro_first;
286	#define coro_nready coroapi.nready	306	#define coro_nready coroapi.nready
287		307
288	/** Coro::Select ************************************************************/	308	/** Coro::Select ************************************************************/
289		309
290	static OP *(*coro_old_pp_sselect) (pTHX);	310	static OP *(*coro_old_pp_sselect) (pTHX);
291	static SV *coro_select_select;	311	static SV *coro_select_select;
292		312
293	/* horrible hack, but if it works... */	313	/* horrible hack, but if it works... */
294	static OP *	314	static OP *
295	coro_pp_sselect (aTHX)	315	coro_pp_sselect (pTHX)
296	{	316	{
297	dSP;	317	dSP;
298	PUSHMARK (SP - 4); /* fake argument list */	318	PUSHMARK (SP - 4); /* fake argument list */
299	XPUSHs (coro_select_select);	319	XPUSHs (coro_select_select);
300	PUTBACK;	320	PUTBACK;
…		…
302	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */	322	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
303	PL_op->op_flags |= OPf_STACKED;	323	PL_op->op_flags |= OPf_STACKED;
304	PL_op->op_private = 0;	324	PL_op->op_private = 0;
305	return PL_ppaddr [OP_ENTERSUB](aTHX);	325	return PL_ppaddr [OP_ENTERSUB](aTHX);
306	}	326	}
		327
		328	/** time stuff **************************************************************/
		329
		330	#ifdef HAS_GETTIMEOFDAY
		331
		332	static void
		333	coro_u2time (pTHX_ UV ret[2])
		334	{
		335	struct timeval tv;
		336	gettimeofday (&tv, 0);
		337
		338	ret [0] = tv.tv_sec;
		339	ret [1] = tv.tv_usec;
		340	}
		341
		342	static double
		343	coro_nvtime ()
		344	{
		345	struct timeval tv;
		346	gettimeofday (&tv, 0);
		347
		348	return tv.tv_sec + tv.tv_usec * 1e-6;
		349	}
		350
		351	static void
		352	time_init (pTHX)
		353	{
		354	nvtime = coro_nvtime;
		355	u2time = coro_u2time;
		356	}
		357
		358	#else
		359
		360	static void
		361	time_init (pTHX)
		362	{
		363	SV **svp;
		364
		365	require_pv ("Time/HiRes.pm");
		366
		367	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		368
		369	if (!svp) croak ("Time::HiRes is required, but missing. Caught");
		370	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
		371
		372	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		373
		374	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		375	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
		376	}
		377
		378	#endif
307		379
308	/** lowlevel stuff **********************************************************/	380	/** lowlevel stuff **********************************************************/
309		381
310	static SV *	382	static SV *
311	coro_get_sv (pTHX_ const char *name, int create)	383	coro_get_sv (pTHX_ const char *name, int create)
…		…
401	: 0)	473	: 0)
402		474
403	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)	475	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
404	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)	476	#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
405		477
		478	INLINE MAGIC *
		479	SvSTATEhv_p (pTHX_ SV *coro)
		480	{
		481	MAGIC *mg;
		482
		483	if (expect_true (
		484	SvTYPE (coro) == SVt_PVHV
		485	&& (mg = CORO_MAGIC_state (coro))
		486	&& mg->mg_virtual == &coro_state_vtbl
		487	))
		488	return mg;
		489
		490	return 0;
		491	}
		492
406	INLINE struct coro *	493	INLINE struct coro *
407	SvSTATE_ (pTHX_ SV *coro)	494	SvSTATE_ (pTHX_ SV *coro)
408	{	495	{
409	HV *stash;
410	MAGIC *mg;	496	MAGIC *mg;
411		497
412	if (SvROK (coro))	498	if (SvROK (coro))
413	coro = SvRV (coro);	499	coro = SvRV (coro);
414		500
415	if (expect_false (SvTYPE (coro) != SVt_PVHV))	501	mg = SvSTATEhv_p (coro);
		502	if (!mg)
416	croak ("Coro::State object required");	503	croak ("Coro::State object required");
417		504
418	stash = SvSTASH (coro);
419	if (expect_false (stash != coro_stash && stash != coro_state_stash))
420	{
421	/* very slow, but rare, check */
422	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
423	croak ("Coro::State object required");
424	}
425
426	mg = CORO_MAGIC_state (coro);
427	return (struct coro *)mg->mg_ptr;	505	return (struct coro *)mg->mg_ptr;
428	}	506	}
429		507
430	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	508	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
431		509
…		…
551	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	629	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
552	}	630	}
553		631
554	/** load & save, init *******************************************************/	632	/** load & save, init *******************************************************/
555		633
		634	/* swap sv heads, at least logically */
		635	static void
		636	swap_svs (pTHX_ Coro__State c)
		637	{
		638	int i;
		639
		640	for (i = 0; i <= AvFILLp (c->swap_sv); )
		641	{
		642	SV *a = AvARRAY (c->swap_sv)[i++];
		643	SV *b = AvARRAY (c->swap_sv)[i++];
		644
		645	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		646	SV tmp;
		647
		648	/* swap sv_any */
		649	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		650
		651	/* swap sv_flags */
		652	SvFLAGS (&tmp) = SvFLAGS (a);
		653	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		654	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		655
		656	#if PERL_VERSION_ATLEAST (5,10,0)
		657	/* perl 5.10 complicates this _quite_ a bit, but it also is
		658	* much faster, so no quarrels here. alternatively, we could
		659	* sv_upgrade to avoid this.
		660	*/
		661	{
		662	/* swap sv_u */
		663	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		664
		665	/* if SvANY points to the head, we need to adjust the pointers,
		666	* as the pointer for a still points to b, and maybe vice versa.
		667	*/
		668	#define svany_in_head(type) \
		669	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		670
		671	if (svany_in_head (SvTYPE (a)))
		672	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		673
		674	if (svany_in_head (SvTYPE (b)))
		675	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		676	}
		677	#endif
		678	}
		679	}
		680
		681	#define SWAP_SVS(coro) \
		682	if (expect_false ((coro)->swap_sv)) \
		683	swap_svs (aTHX_ (coro))
		684
556	static void	685	static void
557	on_enterleave_call (pTHX_ SV *cb);	686	on_enterleave_call (pTHX_ SV *cb);
558		687
559	static void	688	static void
560	load_perl (pTHX_ Coro__State c)	689	load_perl (pTHX_ Coro__State c)
…		…
606	int i;	735	int i;
607		736
608	for (i = 0; i <= AvFILLp (c->on_enter); ++i)	737	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
609	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);	738	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
610	}	739	}
		740
		741	SWAP_SVS (c);
611	}	742	}
612		743
613	static void	744	static void
614	save_perl (pTHX_ Coro__State c)	745	save_perl (pTHX_ Coro__State c)
615	{	746	{
		747	SWAP_SVS (c);
		748
616	if (expect_false (c->on_leave))	749	if (expect_false (c->on_leave))
617	{	750	{
618	int i;	751	int i;
619		752
620	for (i = AvFILLp (c->on_leave); i >= 0; --i)	753	for (i = AvFILLp (c->on_leave); i >= 0; --i)
…		…
678		811
679	PUTBACK;	812	PUTBACK;
680	}	813	}
681		814
682	/* allocate some space on the context stack for our purposes */	815	/* allocate some space on the context stack for our purposes */
683	/* we manually unroll here, as usually 2 slots is enough */	816	if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
684	if (SLOT_COUNT >= 1) CXINC;
685	if (SLOT_COUNT >= 2) CXINC;
686	if (SLOT_COUNT >= 3) CXINC;
687	{	817	{
688	unsigned int i;	818	unsigned int i;
		819
689	for (i = 3; i < SLOT_COUNT; ++i)	820	for (i = 0; i < SLOT_COUNT; ++i)
690	CXINC;	821	CXINC;
691	}	822
692	cxstack_ix -= SLOT_COUNT; /* undo allocation */	823	cxstack_ix -= SLOT_COUNT; /* undo allocation */
		824	}
693		825
694	c->mainstack = PL_mainstack;	826	c->mainstack = PL_mainstack;
695		827
696	{	828	{
697	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);	829	perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
…		…
718	# define coro_init_stacks(thx) init_stacks ()	850	# define coro_init_stacks(thx) init_stacks ()
719	#else	851	#else
720	static void	852	static void
721	coro_init_stacks (pTHX)	853	coro_init_stacks (pTHX)
722	{	854	{
723	PL_curstackinfo = new_stackinfo(32, 8);	855	PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
724	PL_curstackinfo->si_type = PERLSI_MAIN;	856	PL_curstackinfo->si_type = PERLSI_MAIN;
725	PL_curstack = PL_curstackinfo->si_stack;	857	PL_curstack = PL_curstackinfo->si_stack;
726	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	858	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
727		859
728	PL_stack_base = AvARRAY(PL_curstack);	860	PL_stack_base = AvARRAY(PL_curstack);
…		…
927	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1059	slf_check_repeat (pTHX_ struct CoroSLF *frame)
928	{	1060	{
929	return 1;	1061	return 1;
930	}	1062	}
931		1063
932	static UNOP coro_setup_op;	1064	static UNOP init_perl_op;
933		1065
934	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1066	static void NOINLINE /* noinline to keep it out of the transfer fast path */
935	coro_setup (pTHX_ struct coro *coro)	1067	init_perl (pTHX_ struct coro *coro)
936	{	1068	{
937	/*	1069	/*
938	* emulate part of the perl startup here.	1070	* emulate part of the perl startup here.
939	*/	1071	*/
940	coro_init_stacks (aTHX);	1072	coro_init_stacks (aTHX);
…		…
947	PL_comppad_name_fill = 0;	1079	PL_comppad_name_fill = 0;
948	PL_comppad_name_floor = 0;	1080	PL_comppad_name_floor = 0;
949	PL_curpm = 0;	1081	PL_curpm = 0;
950	PL_curpad = 0;	1082	PL_curpad = 0;
951	PL_localizing = 0;	1083	PL_localizing = 0;
952	PL_dirty = 0;
953	PL_restartop = 0;	1084	PL_restartop = 0;
954	#if PERL_VERSION_ATLEAST (5,10,0)	1085	#if PERL_VERSION_ATLEAST (5,10,0)
955	PL_parser = 0;	1086	PL_parser = 0;
956	#endif	1087	#endif
957	PL_hints = 0;	1088	PL_hints = 0;
…		…
987	/* this newly created coroutine might be run on an existing cctx which most	1118	/* this newly created coroutine might be run on an existing cctx which most
988	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	1119	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
989	*/	1120	*/
990	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1121	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
991	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1122	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
		1123	slf_frame.destroy = 0;
992		1124
993	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1125	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
994	coro_setup_op.op_next = PL_op;	1126	init_perl_op.op_next = PL_op;
995	coro_setup_op.op_type = OP_ENTERSUB;	1127	init_perl_op.op_type = OP_ENTERSUB;
996	coro_setup_op.op_ppaddr = pp_slf;	1128	init_perl_op.op_ppaddr = pp_slf;
997	/* no flags etc. required, as an init function won't be called */	1129	/* no flags etc. required, as an init function won't be called */
998		1130
999	PL_op = (OP *)&coro_setup_op;	1131	PL_op = (OP *)&init_perl_op;
1000		1132
1001	/* copy throw, in case it was set before coro_setup */	1133	/* copy throw, in case it was set before init_perl */
1002	CORO_THROW = coro->except;	1134	CORO_THROW = coro->except;
		1135
		1136	SWAP_SVS (coro);
1003		1137
1004	if (expect_false (enable_times))	1138	if (expect_false (enable_times))
1005	{	1139	{
1006	coro_times_update ();	1140	coro_times_update ();
1007	coro_times_sub (coro);	1141	coro_times_sub (coro);
…		…
1028	dounwind (-1);	1162	dounwind (-1);
1029	}	1163	}
1030	}	1164	}
1031		1165
1032	static void	1166	static void
1033	coro_destruct_perl (pTHX_ struct coro *coro)	1167	destroy_perl (pTHX_ struct coro *coro)
1034	{	1168	{
1035	SV *svf [9];	1169	SV *svf [9];
1036		1170
1037	{	1171	{
		1172	SV *old_current = SvRV (coro_current);
1038	struct coro *current = SvSTATE_current;	1173	struct coro *current = SvSTATE (old_current);
1039		1174
1040	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));	1175	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1041		1176
1042	save_perl (aTHX_ current);	1177	save_perl (aTHX_ current);
		1178
		1179	/* this will cause transfer_check to croak on block*/
		1180	SvRV_set (coro_current, (SV *)coro->hv);
		1181
1043	load_perl (aTHX_ coro);	1182	load_perl (aTHX_ coro);
1044		1183
1045	coro_unwind_stacks (aTHX);	1184	coro_unwind_stacks (aTHX);
		1185
		1186	/* restore swapped sv's */
		1187	SWAP_SVS (coro);
		1188
1046	coro_destruct_stacks (aTHX);	1189	coro_destruct_stacks (aTHX);
1047		1190
1048	// now save some sv's to be free'd later	1191	// now save some sv's to be free'd later
1049	svf [0] = GvSV (PL_defgv);	1192	svf [0] = GvSV (PL_defgv);
1050	svf [1] = (SV *)GvAV (PL_defgv);	1193	svf [1] = (SV *)GvAV (PL_defgv);
…		…
1055	svf [6] = (SV *)GvHV (PL_hintgv);	1198	svf [6] = (SV *)GvHV (PL_hintgv);
1056	svf [7] = PL_diehook;	1199	svf [7] = PL_diehook;
1057	svf [8] = PL_warnhook;	1200	svf [8] = PL_warnhook;
1058	assert (9 == sizeof (svf) / sizeof (*svf));	1201	assert (9 == sizeof (svf) / sizeof (*svf));
1059		1202
		1203	SvRV_set (coro_current, old_current);
		1204
1060	load_perl (aTHX_ current);	1205	load_perl (aTHX_ current);
1061	}	1206	}
1062		1207
1063	{	1208	{
1064	unsigned int i;	1209	unsigned int i;
…		…
1076	INLINE void	1221	INLINE void
1077	free_coro_mortal (pTHX)	1222	free_coro_mortal (pTHX)
1078	{	1223	{
1079	if (expect_true (coro_mortal))	1224	if (expect_true (coro_mortal))
1080	{	1225	{
1081	SvREFCNT_dec (coro_mortal);	1226	SvREFCNT_dec ((SV *)coro_mortal);
1082	coro_mortal = 0;	1227	coro_mortal = 0;
1083	}	1228	}
1084	}	1229	}
1085		1230
1086	static int	1231	static int
…		…
1275	/* somebody or something will hit me for both perl_run and PL_restartop */	1420	/* somebody or something will hit me for both perl_run and PL_restartop */
1276	PL_restartop = PL_op;	1421	PL_restartop = PL_op;
1277	perl_run (PL_curinterp);	1422	perl_run (PL_curinterp);
1278	/*	1423	/*
1279	* Unfortunately, there is no way to get at the return values of the	1424	* Unfortunately, there is no way to get at the return values of the
1280	* coro body here, as perl_run destroys these	1425	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1426	* runtime errors here, as this is just a random interpreter, not a thread.
1281	*/	1427	*/
1282		1428
1283	/*	1429	/*
1284	* If perl-run returns we assume exit() was being called or the coro	1430	* If perl-run returns we assume exit() was being called or the coro
1285	* fell off the end, which seems to be the only valid (non-bug)	1431	* fell off the end, which seems to be the only valid (non-bug)
…		…
1372	cctx_destroy (coro_cctx *cctx)	1518	cctx_destroy (coro_cctx *cctx)
1373	{	1519	{
1374	if (!cctx)	1520	if (!cctx)
1375	return;	1521	return;
1376		1522
1377	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?	1523	assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1378		1524
1379	--cctx_count;	1525	--cctx_count;
1380	coro_destroy (&cctx->cctx);	1526	coro_destroy (&cctx->cctx);
1381		1527
1382	/* coro_transfer creates new, empty cctx's */	1528	/* coro_transfer creates new, empty cctx's */
…		…
1492	if (expect_false (next->flags & CF_NEW))	1638	if (expect_false (next->flags & CF_NEW))
1493	{	1639	{
1494	/* need to start coroutine */	1640	/* need to start coroutine */
1495	next->flags &= ~CF_NEW;	1641	next->flags &= ~CF_NEW;
1496	/* setup coroutine call */	1642	/* setup coroutine call */
1497	coro_setup (aTHX_ next);	1643	init_perl (aTHX_ next);
1498	}	1644	}
1499	else	1645	else
1500	load_perl (aTHX_ next);	1646	load_perl (aTHX_ next);
1501		1647
1502	/* possibly untie and reuse the cctx */	1648	/* possibly untie and reuse the cctx */
…		…
1541	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))	1687	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1542	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1688	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1543		1689
1544	/** high level stuff ********************************************************/	1690	/** high level stuff ********************************************************/
1545		1691
		1692	/* this function is actually Coro, not Coro::State, but we call it from here */
		1693	/* because it is convenient - but it hasn't been declared yet for that reason */
1546	static int	1694	static void
		1695	coro_call_on_destroy (pTHX_ struct coro *coro);
		1696
		1697	static void
1547	coro_state_destroy (pTHX_ struct coro *coro)	1698	coro_state_destroy (pTHX_ struct coro *coro)
1548	{	1699	{
1549	if (coro->flags & CF_DESTROYED)	1700	if (coro->flags & CF_DESTROYED)
1550	return 0;	1701	return;
1551		1702
1552	if (coro->on_destroy && !PL_dirty)
1553	coro->on_destroy (aTHX_ coro);	1703	slf_destroy (aTHX_ coro);
1554		1704
1555	coro->flags |= CF_DESTROYED;	1705	coro->flags |= CF_DESTROYED;
1556		1706
1557	if (coro->flags & CF_READY)	1707	if (coro->flags & CF_READY)
1558	{	1708	{
…		…
1560	/* alternative: look through all ready queues and remove the coro */	1710	/* alternative: look through all ready queues and remove the coro */
1561	--coro_nready;	1711	--coro_nready;
1562	}	1712	}
1563	else	1713	else
1564	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */	1714	coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
		1715
		1716	if (coro->next) coro->next->prev = coro->prev;
		1717	if (coro->prev) coro->prev->next = coro->next;
		1718	if (coro == coro_first) coro_first = coro->next;
1565		1719
1566	if (coro->mainstack	1720	if (coro->mainstack
1567	&& coro->mainstack != main_mainstack	1721	&& coro->mainstack != main_mainstack
1568	&& coro->slot	1722	&& coro->slot
1569	&& !PL_dirty)	1723	&& !PL_dirty)
1570	coro_destruct_perl (aTHX_ coro);	1724	destroy_perl (aTHX_ coro);
1571		1725
1572	cctx_destroy (coro->cctx);	1726	cctx_destroy (coro->cctx);
1573	SvREFCNT_dec (coro->startcv);	1727	SvREFCNT_dec (coro->startcv);
1574	SvREFCNT_dec (coro->args);	1728	SvREFCNT_dec (coro->args);
		1729	SvREFCNT_dec (coro->swap_sv);
1575	SvREFCNT_dec (CORO_THROW);	1730	SvREFCNT_dec (CORO_THROW);
1576		1731
1577	if (coro->next) coro->next->prev = coro->prev;	1732	coro_call_on_destroy (coro);
1578	if (coro->prev) coro->prev->next = coro->next;
1579	if (coro == coro_first) coro_first = coro->next;
1580		1733
1581	return 1;	1734	/* more destruction mayhem in coro_state_free */
1582	}	1735	}
1583		1736
1584	static int	1737	static int
1585	coro_state_free (pTHX_ SV *sv, MAGIC *mg)	1738	coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1586	{	1739	{
1587	struct coro *coro = (struct coro *)mg->mg_ptr;	1740	struct coro *coro = (struct coro *)mg->mg_ptr;
1588	mg->mg_ptr = 0;	1741	mg->mg_ptr = 0;
1589		1742
1590	coro->hv = 0;
1591
1592	if (--coro->refcnt < 0)
1593	{
1594	coro_state_destroy (aTHX_ coro);	1743	coro_state_destroy (coro);
		1744	SvREFCNT_dec (coro->on_destroy);
		1745	SvREFCNT_dec (coro->status);
		1746
1595	Safefree (coro);	1747	Safefree (coro);
1596	}
1597		1748
1598	return 0;	1749	return 0;
1599	}	1750	}
1600		1751
1601	static int	1752	static int
1602	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)	1753	coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1603	{	1754	{
1604	struct coro *coro = (struct coro *)mg->mg_ptr;	1755	/* called when perl clones the current process the slow way (windows process emulation) */
1605		1756	/* WE SIMply nuke the pointers in the copy, causing perl to croak */
1606	++coro->refcnt;	1757	mg->mg_ptr = 0;
		1758	mg->mg_virtual = 0;
1607		1759
1608	return 0;	1760	return 0;
1609	}	1761	}
1610		1762
1611	static MGVTBL coro_state_vtbl = {	1763	static MGVTBL coro_state_vtbl = {
…		…
1668	}	1820	}
1669		1821
1670	return 0;	1822	return 0;
1671	}	1823	}
1672		1824
		1825	static void
		1826	invoke_sv_ready_hook_helper (void)
		1827	{
		1828	dTHX;
		1829	dSP;
		1830
		1831	ENTER;
		1832	SAVETMPS;
		1833
		1834	PUSHMARK (SP);
		1835	PUTBACK;
		1836	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1837
		1838	FREETMPS;
		1839	LEAVE;
		1840	}
		1841
1673	static int	1842	static int
1674	api_ready (pTHX_ SV *coro_sv)	1843	api_ready (pTHX_ SV *coro_sv)
1675	{	1844	{
1676	struct coro *coro;
1677	SV *sv_hook;
1678	void (*xs_hook)(void);
1679
1680	coro = SvSTATE (coro_sv);	1845	struct coro *coro = SvSTATE (coro_sv);
1681		1846
1682	if (coro->flags & CF_READY)	1847	if (coro->flags & CF_READY)
1683	return 0;	1848	return 0;
1684		1849
1685	coro->flags |= CF_READY;	1850	coro->flags |= CF_READY;
1686		1851
1687	sv_hook = coro_nready ? 0 : coro_readyhook;
1688	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1689
1690	coro_enq (aTHX_ coro);	1852	coro_enq (aTHX_ coro);
1691	++coro_nready;
1692		1853
1693	if (sv_hook)	1854	if (!coro_nready++)
1694	{	1855	if (coroapi.readyhook)
1695	dSP;	1856	coroapi.readyhook ();
1696
1697	ENTER;
1698	SAVETMPS;
1699
1700	PUSHMARK (SP);
1701	PUTBACK;
1702	call_sv (sv_hook, G_VOID | G_DISCARD);
1703
1704	FREETMPS;
1705	LEAVE;
1706	}
1707
1708	if (xs_hook)
1709	xs_hook ();
1710		1857
1711	return 1;	1858	return 1;
1712	}	1859	}
1713		1860
1714	static int	1861	static int
…		…
1759	{	1906	{
1760	/* nothing to schedule: call the idle handler */	1907	/* nothing to schedule: call the idle handler */
1761	if (SvROK (sv_idle)	1908	if (SvROK (sv_idle)
1762	&& SvOBJECT (SvRV (sv_idle)))	1909	&& SvOBJECT (SvRV (sv_idle)))
1763	{	1910	{
		1911	if (SvRV (sv_idle) == SvRV (coro_current))
		1912	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1913
1764	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1914	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1765	api_ready (aTHX_ SvRV (sv_idle));	1915	api_ready (aTHX_ SvRV (sv_idle));
1766	--coro_nready;	1916	--coro_nready;
1767	}	1917	}
1768	else	1918	else
1769	{	1919	{
		1920	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1770	dSP;	1921	dSP;
1771		1922
1772	ENTER;	1923	ENTER;
1773	SAVETMPS;	1924	SAVETMPS;
1774		1925
…		…
1881	coro->slot->runops = RUNOPS_DEFAULT;	2032	coro->slot->runops = RUNOPS_DEFAULT;
1882	}	2033	}
1883	}	2034	}
1884		2035
1885	static void	2036	static void
		2037	coro_push_av (pTHX_ AV *av, I32 gimme_v)
		2038	{
		2039	if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
		2040	{
		2041	dSP;
		2042
		2043	if (gimme_v == G_SCALAR)
		2044	XPUSHs (AvARRAY (av)[AvFILLp (av)]);
		2045	else
		2046	{
		2047	int i;
		2048	EXTEND (SP, AvFILLp (av) + 1);
		2049
		2050	for (i = 0; i <= AvFILLp (av); ++i)
		2051	PUSHs (AvARRAY (av)[i]);
		2052	}
		2053
		2054	PUTBACK;
		2055	}
		2056	}
		2057
		2058	static void
		2059	coro_push_on_destroy (aTHX_ struct coro *coro, SV *cb)
		2060	{
		2061	if (!coro->on_destroy)
		2062	coro->on_destroy = newAV ();
		2063
		2064	av_push (coro->on_destroy, cb);
		2065	}
		2066
		2067	static void
		2068	slf_destroy_join (pTHX_ struct CoroSLF *frame)
		2069	{
		2070	SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
		2071	}
		2072
		2073	static int
		2074	slf_check_join (pTHX_ struct CoroSLF *frame)
		2075	{
		2076	struct coro *coro = (struct coro *)frame->data;
		2077
		2078	if (!coro->status)
		2079	return 1;
		2080
		2081	frame->destroy = 0;
		2082
		2083	coro_push_av (coro->status, GIMME_V);
		2084
		2085	SvREFCNT_dec ((SV *)coro->hv);
		2086
		2087	return 0;
		2088	}
		2089
		2090	static void
		2091	slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2092	{
		2093	struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
		2094
		2095	if (items > 1)
		2096	croak ("join called with too many arguments");
		2097
		2098	if (coro->status)
		2099	frame->prepare = prepare_nop;
		2100	else
		2101	{
		2102	coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
		2103	frame->prepare = prepare_schedule;
		2104	}
		2105
		2106	frame->check = slf_check_join;
		2107	frame->destroy = slf_destroy_join;
		2108	frame->data = (void *)coro;
		2109	SvREFCNT_inc (coro->hv);
		2110	}
		2111
		2112	static void
1886	coro_call_on_destroy (pTHX_ struct coro *coro)	2113	coro_call_on_destroy (pTHX_ struct coro *coro)
1887	{	2114	{
1888	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);	2115	AV *od = coro->on_destroy;
1889	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1890		2116
1891	if (on_destroyp)	2117	if (!od)
1892	{	2118	return;
1893	AV *on_destroy = (AV *)SvRV (*on_destroyp);
1894		2119
1895	while (AvFILLp (on_destroy) >= 0)	2120	while (AvFILLp (od) >= 0)
		2121	{
		2122	SV *cb = sv_2mortal (av_pop (od));
		2123
		2124	/* coro hv's (and only hv's at the moment) are supported as well */
		2125	if (SvSTATEhv_p (aTHX_ cb))
		2126	api_ready (aTHX_ cb);
		2127	else
1896	{	2128	{
1897	dSP; /* don't disturb outer sp */	2129	dSP; /* don't disturb outer sp */
1898	SV *cb = av_pop (on_destroy);
1899
1900	PUSHMARK (SP);	2130	PUSHMARK (SP);
1901		2131
1902	if (statusp)	2132	if (coro->status)
1903	{	2133	{
1904	int i;	2134	PUTBACK;
1905	AV *status = (AV *)SvRV (*statusp);	2135	coro_push_av (aTHX_ coro->status, G_ARRAY);
1906	EXTEND (SP, AvFILLp (status) + 1);	2136	SPAGAIN;
1907
1908	for (i = 0; i <= AvFILLp (status); ++i)
1909	PUSHs (AvARRAY (status)[i]);
1910	}	2137	}
1911		2138
1912	PUTBACK;	2139	PUTBACK;
1913	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);	2140	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1914	}	2141	}
1915	}	2142	}
1916	}	2143	}
1917		2144
1918	static void	2145	static void
1919	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2146	coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1920	{	2147	{
		2148	AV *av;
		2149
		2150	if (coro->status)
		2151	{
		2152	av = coro->status;
		2153	av_clear (av);
		2154	}
		2155	else
		2156	av = coro->status = newAV ();
		2157
		2158	/* items are actually not so common, so optimise for this case */
		2159	if (items)
		2160	{
1921	int i;	2161	int i;
1922	HV *hv = (HV *)SvRV (coro_current);
1923	AV *av = newAV ();
1924		2162
1925	av_extend (av, items - 1);	2163	av_extend (av, items - 1);
		2164
1926	for (i = 0; i < items; ++i)	2165	for (i = 0; i < items; ++i)
1927	av_push (av, SvREFCNT_inc_NN (arg [i]));	2166	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2167	}
		2168	}
1928		2169
1929	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2170	static void
1930		2171	slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
		2172	{
1931	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2173	av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1932	api_ready (aTHX_ sv_manager);	2174	api_ready (aTHX_ sv_manager);
1933		2175
1934	frame->prepare = prepare_schedule;	2176	frame->prepare = prepare_schedule;
1935	frame->check = slf_check_repeat;	2177	frame->check = slf_check_repeat;
1936		2178
1937	/* as a minor optimisation, we could unwind all stacks here */	2179	/* as a minor optimisation, we could unwind all stacks here */
1938	/* but that puts extra pressure on pp_slf, and is not worth much */	2180	/* but that puts extra pressure on pp_slf, and is not worth much */
1939	/*coro_unwind_stacks (aTHX);*/	2181	/*coro_unwind_stacks (aTHX);*/
		2182	}
		2183
		2184	static void
		2185	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2186	{
		2187	HV *coro_hv = (HV *)SvRV (coro_current);
		2188
		2189	coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
		2190	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2191	}
		2192
		2193	static void
		2194	slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2195	{
		2196	HV *coro_hv;
		2197	struct coro *coro;
		2198
		2199	if (items <= 0)
		2200	croak ("Coro::cancel called without coro object,");
		2201
		2202	coro = SvSTATE (arg [0]);
		2203	coro_hv = coro->hv;
		2204
		2205	coro_set_status (aTHX_ coro, arg + 1, items - 1);
		2206
		2207	if (expect_false (coro->flags & CF_NOCANCEL))
		2208	{
		2209	/* coro currently busy cancelling something, so just notify it */
		2210	coro->slf_frame.data = (void *)coro;
		2211
		2212	frame->prepare = prepare_nop;
		2213	frame->check = slf_check_nop;
		2214	}
		2215	else if (coro_hv == (HV *)SvRV (coro_current))
		2216	{
		2217	/* cancelling the current coro is allowed, and equals terminate */
		2218	slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
		2219	}
		2220	else
		2221	{
		2222	struct coro *self = SvSTATE_current;
		2223
		2224	/* otherwise we cancel directly, purely for speed reasons
		2225	* unfortunately, this requires some magic trickery, as
		2226	* somebody else could cancel us, so we have to fight the cancellation.
		2227	* this is ugly, and hopefully fully worth the extra speed.
		2228	* besides, I can't get the slow-but-safe version working...
		2229	*/
		2230	slf_frame.data = 0;
		2231	self->flags |= CF_NOCANCEL;
		2232	coro_state_destroy (aTHX_ coro);
		2233	self->flags &= ~CF_NOCANCEL;
		2234
		2235	if (slf_frame.data)
		2236	{
		2237	/* while we were busy we have been cancelled, so terminate */
		2238	slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
		2239	}
		2240	else
		2241	{
		2242	frame->prepare = prepare_nop;
		2243	frame->check = slf_check_nop;
		2244	}
		2245	}
		2246	}
		2247
		2248	static int
		2249	slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
		2250	{
		2251	frame->prepare = 0;
		2252	coro_unwind_stacks (aTHX);
		2253
		2254	slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
		2255
		2256	return 1;
		2257	}
		2258
		2259	static int
		2260	safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
		2261	{
		2262	if (coro->cctx)
		2263	croak ("coro inside C callback, unable to cancel at this time, caught");
		2264
		2265	if (coro->flags & CF_NEW)
		2266	{
		2267	coro_set_status (aTHX_ coro, arg, items);
		2268	coro_state_destroy (aTHX_ coro);
		2269	}
		2270	else
		2271	{
		2272	if (!coro->slf_frame.prepare)
		2273	croak ("coro outside an SLF function, unable to cancel at this time, caught");
		2274
		2275	slf_destroy (aTHX_ coro);
		2276
		2277	coro_set_status (aTHX_ coro, arg, items);
		2278	coro->slf_frame.prepare = prepare_nop;
		2279	coro->slf_frame.check = slf_check_safe_cancel;
		2280
		2281	api_ready (aTHX_ (SV *)coro->hv);
		2282	}
		2283
		2284	return 1;
1940	}	2285	}
1941		2286
1942	/*****************************************************************************/	2287	/*****************************************************************************/
1943	/* async pool handler */	2288	/* async pool handler */
1944		2289
…		…
1984	coro->saved_deffh = 0;	2329	coro->saved_deffh = 0;
1985		2330
1986	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)	2331	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1987	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2332	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1988	{	2333	{
1989	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);	2334	slf_init_terminate_cancel_common (aTHX_ frame, hv);
1990	coro->invoke_av = newAV ();	2335	return;
1991
1992	frame->prepare = prepare_nop;
1993	}	2336	}
1994	else	2337	else
1995	{	2338	{
1996	av_clear (GvAV (PL_defgv));	2339	av_clear (GvAV (PL_defgv));
1997	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);	2340	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
…		…
2220	static void	2563	static void
2221	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2564	slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2222	{	2565	{
2223	frame->prepare = prepare_cede_notself;	2566	frame->prepare = prepare_cede_notself;
2224	frame->check = slf_check_nop;	2567	frame->check = slf_check_nop;
		2568	}
		2569
		2570	/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
		2571	static void
		2572	slf_destroy (pTHX_ struct coro *coro)
		2573	{
		2574	/* this callback is reserved for slf functions needing to do cleanup */
		2575	if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
		2576	coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
		2577
		2578	/*
		2579	* The on_destroy above most likely is from an SLF call.
		2580	* Since by definition the SLF call will not finish when we destroy
		2581	* the coro, we will have to force-finish it here, otherwise
		2582	* cleanup functions cannot call SLF functions.
		2583	*/
		2584	coro->slf_frame.prepare = 0;
2225	}	2585	}
2226		2586
2227	/*	2587	/*
2228	* these not obviously related functions are all rolled into one	2588	* these not obviously related functions are all rolled into one
2229	* function to increase chances that they all will call transfer with the same	2589	* function to increase chances that they all will call transfer with the same
…		…
2298	croak (0);	2658	croak (0);
2299	}	2659	}
2300		2660
2301	/* return value handling - mostly like entersub */	2661	/* return value handling - mostly like entersub */
2302	/* make sure we put something on the stack in scalar context */	2662	/* make sure we put something on the stack in scalar context */
2303	if (GIMME_V == G_SCALAR)	2663	if (GIMME_V == G_SCALAR
		2664	&& expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2304	{	2665	{
2305	dSP;	2666	dSP;
2306	SV **bot = PL_stack_base + checkmark;	2667	SV **bot = PL_stack_base + checkmark;
2307		2668
2308	if (sp == bot) /* too few, push undef */	2669	if (sp == bot) /* too few, push undef */
2309	bot [1] = &PL_sv_undef;	2670	bot [1] = &PL_sv_undef;
2310	else if (sp != bot + 1) /* too many, take last one */	2671	else /* too many, take last one */
2311	bot [1] = *sp;	2672	bot [1] = *sp;
2312		2673
2313	SP = bot + 1;	2674	SP = bot + 1;
2314		2675
2315	PUTBACK;	2676	PUTBACK;
…		…
2348	if (PL_op->op_flags & OPf_STACKED)	2709	if (PL_op->op_flags & OPf_STACKED)
2349	{	2710	{
2350	if (items > slf_arga)	2711	if (items > slf_arga)
2351	{	2712	{
2352	slf_arga = items;	2713	slf_arga = items;
2353	free (slf_argv);	2714	Safefree (slf_argv);
2354	slf_argv = malloc (slf_arga * sizeof (SV *));	2715	New (0, slf_argv, slf_arga, SV *);
2355	}	2716	}
2356		2717
2357	slf_argc = items;	2718	slf_argc = items;
2358		2719
2359	for (i = 0; i < items; ++i)	2720	for (i = 0; i < items; ++i)
…		…
2555	SvREFCNT_dec (cb);	2916	SvREFCNT_dec (cb);
2556	}	2917	}
2557	}	2918	}
2558		2919
2559	static void	2920	static void
2560	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2921	coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2561	{	2922	{
2562	/* call $sem->adjust (0) to possibly wake up some other waiters */	2923	/* call $sem->adjust (0) to possibly wake up some other waiters */
2563	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2924	coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2564	}	2925	}
2565		2926
2566	static int	2927	static int
2567	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)	2928	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2568	{	2929	{
2569	AV *av = (AV *)frame->data;	2930	AV *av = (AV *)frame->data;
2570	SV *count_sv = AvARRAY (av)[0];	2931	SV *count_sv = AvARRAY (av)[0];
		2932	SV *coro_hv = SvRV (coro_current);
2571		2933
2572	/* if we are about to throw, don't actually acquire the lock, just throw */	2934	/* if we are about to throw, don't actually acquire the lock, just throw */
2573	if (CORO_THROW)	2935	if (CORO_THROW)
2574	return 0;	2936	return 0;
2575	else if (SvIVX (count_sv) > 0)	2937	else if (SvIVX (count_sv) > 0)
2576	{	2938	{
2577	SvSTATE_current->on_destroy = 0;	2939	frame->destroy = 0;
2578		2940
2579	if (acquire)	2941	if (acquire)
2580	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2942	SvIVX (count_sv) = SvIVX (count_sv) - 1;
2581	else	2943	else
2582	coro_semaphore_adjust (aTHX_ av, 0);	2944	coro_semaphore_adjust (aTHX_ av, 0);
…		…
2587	{	2949	{
2588	int i;	2950	int i;
2589	/* if we were woken up but can't down, we look through the whole */	2951	/* if we were woken up but can't down, we look through the whole */
2590	/* waiters list and only add us if we aren't in there already */	2952	/* waiters list and only add us if we aren't in there already */
2591	/* this avoids some degenerate memory usage cases */	2953	/* this avoids some degenerate memory usage cases */
2592		2954	for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2593	for (i = 1; i <= AvFILLp (av); ++i)
2594	if (AvARRAY (av)[i] == SvRV (coro_current))	2955	if (AvARRAY (av)[i] == coro_hv)
2595	return 1;	2956	return 1;
2596		2957
2597	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2958	av_push (av, SvREFCNT_inc (coro_hv));
2598	return 1;	2959	return 1;
2599	}	2960	}
2600	}	2961	}
2601		2962
2602	static int	2963	static int
…		…
2625	{	2986	{
2626	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2987	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2627		2988
2628	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2989	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2629	frame->prepare = prepare_schedule;	2990	frame->prepare = prepare_schedule;
2630
2631	/* to avoid race conditions when a woken-up coro gets terminated */	2991	/* to avoid race conditions when a woken-up coro gets terminated */
2632	/* we arrange for a temporary on_destroy that calls adjust (0) */	2992	/* we arrange for a temporary on_destroy that calls adjust (0) */
2633	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2993	frame->destroy = coro_semaphore_destroy;
2634	}	2994	}
2635	}	2995	}
2636		2996
2637	static void	2997	static void
2638	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2998	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
…		…
2720	{	3080	{
2721	SV *cb_cv = s_get_cv_croak (arg [1]);	3081	SV *cb_cv = s_get_cv_croak (arg [1]);
2722	av_push (av, SvREFCNT_inc_NN (cb_cv));	3082	av_push (av, SvREFCNT_inc_NN (cb_cv));
2723		3083
2724	if (SvIVX (AvARRAY (av)[0]))	3084	if (SvIVX (AvARRAY (av)[0]))
2725	coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */	3085	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2726		3086
2727	frame->prepare = prepare_nop;	3087	frame->prepare = prepare_nop;
2728	frame->check = slf_check_nop;	3088	frame->check = slf_check_nop;
2729	}	3089	}
2730	else if (SvIVX (AvARRAY (av)[0]))	3090	else if (SvIVX (AvARRAY (av)[0]))
…		…
2892	/* now call the AIO function - we assume our request is uncancelable */	3252	/* now call the AIO function - we assume our request is uncancelable */
2893	PUTBACK;	3253	PUTBACK;
2894	call_sv ((SV *)req, G_VOID | G_DISCARD);	3254	call_sv ((SV *)req, G_VOID | G_DISCARD);
2895	}	3255	}
2896		3256
2897	/* now that the requets is going, we loop toll we have a result */	3257	/* now that the request is going, we loop till we have a result */
2898	frame->data = (void *)state;	3258	frame->data = (void *)state;
2899	frame->prepare = prepare_schedule;	3259	frame->prepare = prepare_schedule;
2900	frame->check = slf_check_aio_req;	3260	frame->check = slf_check_aio_req;
2901	}	3261	}
2902		3262
…		…
2913	/*****************************************************************************/	3273	/*****************************************************************************/
2914		3274
2915	#if CORO_CLONE	3275	#if CORO_CLONE
2916	# include "clone.c"	3276	# include "clone.c"
2917	#endif	3277	#endif
		3278
		3279	/*****************************************************************************/
		3280
		3281	static SV *
		3282	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3283	{
		3284	SV *coro_sv;
		3285	struct coro *coro;
		3286	MAGIC *mg;
		3287	HV *hv;
		3288	SV *cb;
		3289	int i;
		3290
		3291	if (argc > 0)
		3292	{
		3293	cb = s_get_cv_croak (argv [0]);
		3294
		3295	if (!is_coro)
		3296	{
		3297	if (CvISXSUB (cb))
		3298	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3299
		3300	if (!CvROOT (cb))
		3301	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3302	}
		3303	}
		3304
		3305	Newz (0, coro, 1, struct coro);
		3306	coro->args = newAV ();
		3307	coro->flags = CF_NEW;
		3308
		3309	if (coro_first) coro_first->prev = coro;
		3310	coro->next = coro_first;
		3311	coro_first = coro;
		3312
		3313	coro->hv = hv = newHV ();
		3314	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3315	mg->mg_flags |= MGf_DUP;
		3316	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3317
		3318	if (argc > 0)
		3319	{
		3320	av_extend (coro->args, argc + is_coro - 1);
		3321
		3322	if (is_coro)
		3323	{
		3324	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3325	cb = (SV *)cv_coro_run;
		3326	}
		3327
		3328	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3329
		3330	for (i = 1; i < argc; i++)
		3331	av_push (coro->args, newSVsv (argv [i]));
		3332	}
		3333
		3334	return coro_sv;
		3335	}
2918		3336
2919	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3337	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2920		3338
2921	PROTOTYPES: DISABLE	3339	PROTOTYPES: DISABLE
2922		3340
…		…
2975	coroapi.prepare_nop = prepare_nop;	3393	coroapi.prepare_nop = prepare_nop;
2976	coroapi.prepare_schedule = prepare_schedule;	3394	coroapi.prepare_schedule = prepare_schedule;
2977	coroapi.prepare_cede = prepare_cede;	3395	coroapi.prepare_cede = prepare_cede;
2978	coroapi.prepare_cede_notself = prepare_cede_notself;	3396	coroapi.prepare_cede_notself = prepare_cede_notself;
2979		3397
2980	{	3398	time_init (aTHX);
2981	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2982
2983	if (!svp) croak ("Time::HiRes is required");
2984	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2985
2986	nvtime = INT2PTR (double (*)(), SvIV (*svp));
2987
2988	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
2989	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2990	}
2991		3399
2992	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));	3400	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2993	}	3401	}
2994		3402
2995	SV *	3403	SV *
2996	new (char *klass, ...)	3404	new (SV *klass, ...)
2997	ALIAS:	3405	ALIAS:
2998	Coro::new = 1	3406	Coro::new = 1
2999	CODE:	3407	CODE:
3000	{	3408	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3001	struct coro *coro;	3409	OUTPUT:
3002	MAGIC *mg;
3003	HV *hv;
3004	SV *cb;
3005	int i;
3006
3007	if (items > 1)
3008	{
3009	cb = s_get_cv_croak (ST (1));
3010
3011	if (!ix)
3012	{
3013	if (CvISXSUB (cb))
3014	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3015
3016	if (!CvROOT (cb))
3017	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3018	}
3019	}
3020
3021	Newz (0, coro, 1, struct coro);
3022	coro->args = newAV ();
3023	coro->flags = CF_NEW;
3024
3025	if (coro_first) coro_first->prev = coro;
3026	coro->next = coro_first;
3027	coro_first = coro;
3028
3029	coro->hv = hv = newHV ();
3030	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3031	mg->mg_flags |= MGf_DUP;
3032	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3033
3034	if (items > 1)
3035	{
3036	av_extend (coro->args, items - 1 + ix - 1);
3037
3038	if (ix)
3039	{
3040	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3041	cb = (SV *)cv_coro_run;
3042	}
3043
3044	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3045
3046	for (i = 2; i < items; i++)
3047	av_push (coro->args, newSVsv (ST (i)));
3048	}
3049	}
3050	OUTPUT:
3051	RETVAL	3410	RETVAL
3052		3411
3053	void	3412	void
3054	transfer (...)	3413	transfer (...)
3055	PROTOTYPE: $$	3414	PROTOTYPE: $$
3056	CODE:	3415	CODE:
3057	CORO_EXECUTE_SLF_XS (slf_init_transfer);	3416	CORO_EXECUTE_SLF_XS (slf_init_transfer);
3058
3059	bool
3060	_destroy (SV *coro_sv)
3061	CODE:
3062	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3063	OUTPUT:
3064	RETVAL
3065		3417
3066	void	3418	void
3067	_exit (int code)	3419	_exit (int code)
3068	PROTOTYPE: $	3420	PROTOTYPE: $
3069	CODE:	3421	CODE:
…		…
3145	CODE:	3497	CODE:
3146	{	3498	{
3147	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3499	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3148	{	3500	{
3149	struct coro *current = SvSTATE_current;	3501	struct coro *current = SvSTATE_current;
		3502	struct CoroSLF slf_save;
3150		3503
3151	if (current != coro)	3504	if (current != coro)
3152	{	3505	{
3153	PUTBACK;	3506	PUTBACK;
3154	save_perl (aTHX_ current);	3507	save_perl (aTHX_ current);
3155	load_perl (aTHX_ coro);	3508	load_perl (aTHX_ coro);
		3509	/* the coro is most likely in an active SLF call.
		3510	* while not strictly required (the code we execute is
		3511	* not allowed to call any SLF functions), it's cleaner
		3512	* to reinitialise the slf_frame and restore it later.
		3513	* This might one day allow us to actually do SLF calls
		3514	* from code executed here.
		3515	*/
		3516	slf_save = slf_frame;
		3517	slf_frame.prepare = 0;
3156	SPAGAIN;	3518	SPAGAIN;
3157	}	3519	}
3158		3520
3159	PUSHSTACK;	3521	PUSHSTACK;
3160		3522
…		…
3170	SPAGAIN;	3532	SPAGAIN;
3171		3533
3172	if (current != coro)	3534	if (current != coro)
3173	{	3535	{
3174	PUTBACK;	3536	PUTBACK;
		3537	slf_frame = slf_save;
3175	save_perl (aTHX_ coro);	3538	save_perl (aTHX_ coro);
3176	load_perl (aTHX_ current);	3539	load_perl (aTHX_ current);
3177	SPAGAIN;	3540	SPAGAIN;
3178	}	3541	}
3179	}	3542	}
…		…
3192	RETVAL = boolSV (coro->flags & ix);	3555	RETVAL = boolSV (coro->flags & ix);
3193	OUTPUT:	3556	OUTPUT:
3194	RETVAL	3557	RETVAL
3195		3558
3196	void	3559	void
3197	throw (Coro::State self, SV *throw = &PL_sv_undef)	3560	throw (Coro::State self, SV *exception = &PL_sv_undef)
3198	PROTOTYPE: $;$	3561	PROTOTYPE: $;$
3199	CODE:	3562	CODE:
3200	{	3563	{
3201	struct coro *current = SvSTATE_current;	3564	struct coro *current = SvSTATE_current;
3202	SV **throwp = self == current ? &CORO_THROW : &self->except;	3565	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3203	SvREFCNT_dec (*throwp);	3566	SvREFCNT_dec (*exceptionp);
3204	SvGETMAGIC (throw);	3567	SvGETMAGIC (exception);
3205	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3568	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3206	}	3569	}
3207		3570
3208	void	3571	void
3209	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3572	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3210	PROTOTYPE: $;$	3573	PROTOTYPE: $;$
…		…
3265		3628
3266	void	3629	void
3267	cancel (Coro::State self)	3630	cancel (Coro::State self)
3268	CODE:	3631	CODE:
3269	coro_state_destroy (aTHX_ self);	3632	coro_state_destroy (aTHX_ self);
3270	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3271
3272		3633
3273	SV *	3634	SV *
3274	enable_times (int enabled = enable_times)	3635	enable_times (int enabled = enable_times)
3275	CODE:	3636	CODE:
3276	{	3637	{
…		…
3305		3666
3306	if (expect_false (current == self))	3667	if (expect_false (current == self))
3307	coro_times_sub (SvSTATE (coro_current));	3668	coro_times_sub (SvSTATE (coro_current));
3308	}	3669	}
3309		3670
		3671	void
		3672	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3673	CODE:
		3674	{
		3675	struct coro *current = SvSTATE_current;
		3676
		3677	if (current == coro)
		3678	SWAP_SVS (current);
		3679
		3680	if (!coro->swap_sv)
		3681	coro->swap_sv = newAV ();
		3682
		3683	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3684	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3685
		3686	if (current == coro)
		3687	SWAP_SVS (current);
		3688	}
		3689
		3690
3310	MODULE = Coro::State PACKAGE = Coro	3691	MODULE = Coro::State PACKAGE = Coro
3311		3692
3312	BOOT:	3693	BOOT:
3313	{	3694	{
3314	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3695	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3315	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3696	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3316	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3697	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3317	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3318	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3698	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3319	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	3699	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3320	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);	3700	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3321	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);	3701	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3322	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3702	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3323		3703
3324	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3704	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3325	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3705	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3326	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3706	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3327	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3707	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3328		3708
3329	coro_stash = gv_stashpv ("Coro", TRUE);	3709	coro_stash = gv_stashpv ("Coro", TRUE);
3330		3710
3331	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));	3711	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3332	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));	3712	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3333	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));	3713	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
…		…
3351	sv_setiv (sv, (IV)&coroapi);	3731	sv_setiv (sv, (IV)&coroapi);
3352	SvREADONLY_on (sv);	3732	SvREADONLY_on (sv);
3353	}	3733	}
3354	}	3734	}
3355		3735
		3736	SV *
		3737	async (...)
		3738	PROTOTYPE: &@
		3739	CODE:
		3740	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3741	api_ready (aTHX_ RETVAL);
		3742	OUTPUT:
		3743	RETVAL
		3744
		3745	void
		3746	_destroy (Coro::State coro)
		3747	CODE:
		3748	/* used by the manager thread */
		3749	coro_state_destroy (aTHX_ coro);
		3750
		3751	void
		3752	on_destroy (Coro::State coro, SV *cb)
		3753	CODE:
		3754	coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
		3755
		3756	void
		3757	join (...)
		3758	CODE:
		3759	CORO_EXECUTE_SLF_XS (slf_init_join);
		3760
3356	void	3761	void
3357	terminate (...)	3762	terminate (...)
3358	CODE:	3763	CODE:
3359	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3764	CORO_EXECUTE_SLF_XS (slf_init_terminate);
		3765
		3766	void
		3767	cancel (...)
		3768	CODE:
		3769	CORO_EXECUTE_SLF_XS (slf_init_cancel);
		3770
		3771	int
		3772	safe_cancel (Coro::State self, ...)
		3773	C_ARGS: aTHX_ self, &ST (1), items - 1
3360		3774
3361	void	3775	void
3362	schedule (...)	3776	schedule (...)
3363	CODE:	3777	CODE:
3364	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3778	CORO_EXECUTE_SLF_XS (slf_init_schedule);
…		…
3394	_set_readyhook (SV *hook)	3808	_set_readyhook (SV *hook)
3395	PROTOTYPE: $	3809	PROTOTYPE: $
3396	CODE:	3810	CODE:
3397	SvREFCNT_dec (coro_readyhook);	3811	SvREFCNT_dec (coro_readyhook);
3398	SvGETMAGIC (hook);	3812	SvGETMAGIC (hook);
		3813	if (SvOK (hook))
		3814	{
3399	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3815	coro_readyhook = newSVsv (hook);
		3816	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3817	}
		3818	else
		3819	{
		3820	coro_readyhook = 0;
		3821	CORO_READYHOOK = 0;
		3822	}
3400		3823
3401	int	3824	int
3402	prio (Coro::State coro, int newprio = 0)	3825	prio (Coro::State coro, int newprio = 0)
3403	PROTOTYPE: $;$	3826	PROTOTYPE: $;$
3404	ALIAS:	3827	ALIAS:
…		…
3468	for (i = 1; i < items; ++i)	3891	for (i = 1; i < items; ++i)
3469	av_push (av, SvREFCNT_inc_NN (ST (i)));	3892	av_push (av, SvREFCNT_inc_NN (ST (i)));
3470		3893
3471	if ((SV *)hv == &PL_sv_undef)	3894	if ((SV *)hv == &PL_sv_undef)
3472	{	3895	{
3473	PUSHMARK (SP);	3896	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3474	EXTEND (SP, 2);
3475	PUSHs (sv_Coro);
3476	PUSHs ((SV *)cv_pool_handler);
3477	PUTBACK;
3478	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3479	SPAGAIN;
3480
3481	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3897	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3898	SvREFCNT_dec (sv);
3482	}	3899	}
3483		3900
3484	{	3901	{
3485	struct coro *coro = SvSTATE_hv (hv);	3902	struct coro *coro = SvSTATE_hv (hv);
3486		3903
…		…
3758	{	4175	{
3759	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;	4176	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3760	coro_old_pp_sselect = 0;	4177	coro_old_pp_sselect = 0;
3761	}	4178	}
3762		4179
3763

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