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/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.337 by root, Fri Dec 5 18:26:10 2008 UTC vs.
Revision 1.387 by root, Mon Feb 21 13:38:04 2011 UTC

		1	/* this works around a bug in mingw32 providing a non-working setjmp */
		2	#define USE_NO_MINGW_SETJMP_TWO_ARGS
		3
		4	#define NDEBUG 1
		5
1	#include "libcoro/coro.c"	6	#include "libcoro/coro.c"
2		7
3	#define PERL_NO_GET_CONTEXT	8	#define PERL_NO_GET_CONTEXT
4	#define PERL_EXT	9	#define PERL_EXT
5		10
6	#include "EXTERN.h"	11	#include "EXTERN.h"
7	#include "perl.h"	12	#include "perl.h"
8	#include "XSUB.h"	13	#include "XSUB.h"
9	#include "perliol.h"	14	#include "perliol.h"
10		15
11	#include "patchlevel.h"	16	#include "schmorp.h"
12		17
13	#include <stdio.h>	18	#include <stdio.h>
14	#include <errno.h>	19	#include <errno.h>
15	#include <assert.h>	20	#include <assert.h>
		21
		22	#ifndef SVs_PADSTALE
		23	# define SVs_PADSTALE 0
		24	#endif
16		25
17	#ifdef WIN32	26	#ifdef WIN32
18	# undef setjmp	27	# undef setjmp
19	# undef longjmp	28	# undef longjmp
20	# undef _exit	29	# undef _exit
…		…
51	#endif	60	#endif
52		61
53	/* the maximum number of idle cctx that will be pooled */	62	/* the maximum number of idle cctx that will be pooled */
54	static int cctx_max_idle = 4;	63	static int cctx_max_idle = 4;
55		64
56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \
58	|| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \
60	|| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr
65	# endif
66	# ifndef call_sv
67	# define call_sv perl_call_sv
68	# endif
69	# ifndef get_sv
70	# define get_sv perl_get_sv
71	# endif
72	# ifndef get_cv
73	# define get_cv perl_get_cv
74	# endif
75	# ifndef IS_PADGV
76	# define IS_PADGV(v) 0
77	# endif
78	# ifndef IS_PADCONST
79	# define IS_PADCONST(v) 0
80	# endif
81	#endif
82
83	/* 5.11 */
84	#ifndef CxHASARGS
85	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86	#endif
87
88	/* 5.10.0 */
89	#ifndef SvREFCNT_inc_NN
90	# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91	#endif
92
93	/* 5.8.8 */
94	#ifndef GV_NOTQUAL
95	# define GV_NOTQUAL 0
96	#endif
97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)
99	#endif
100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv
102	#endif
103	#ifndef CvISXSUB
104	# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105	#endif
106	#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	65	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116	# undef CORO_STACKGUARD	66	# undef CORO_STACKGUARD
117	#endif	67	#endif
118		68
119	#ifndef CORO_STACKGUARD	69	#ifndef CORO_STACKGUARD
…		…
137		87
138	#define IN_DESTRUCT PL_dirty	88	#define IN_DESTRUCT PL_dirty
139		89
140	#if __GNUC__ >= 3	90	#if __GNUC__ >= 3
141	# define attribute(x) __attribute__(x)	91	# define attribute(x) __attribute__(x)
142	# define expect(expr,value) __builtin_expect ((expr),(value))	92	# define expect(expr,value) __builtin_expect ((expr), (value))
143	# define INLINE static inline	93	# define INLINE static inline
144	#else	94	#else
145	# define attribute(x)	95	# define attribute(x)
146	# define expect(expr,value) (expr)	96	# define expect(expr,value) (expr)
147	# define INLINE static	97	# define INLINE static
…		…
159	# if CORO_PTHREAD	109	# if CORO_PTHREAD
160	static void *coro_thx;	110	static void *coro_thx;
161	# endif	111	# endif
162	#endif	112	#endif
163		113
		114	#ifdef __linux
		115	# include <time.h> /* for timespec */
		116	# include <syscall.h> /* for SYS_* */
		117	# ifdef SYS_clock_gettime
		118	# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
		119	# define CORO_CLOCK_MONOTONIC 1
		120	# define CORO_CLOCK_THREAD_CPUTIME_ID 3
		121	# endif
		122	#endif
		123
164	static double (*nvtime)(); /* so why doesn't it take void? */	124	static double (*nvtime)(); /* so why doesn't it take void? */
		125	static void (*u2time)(pTHX_ UV ret[2]);
165		126
166	/* we hijack an hopefully unused CV flag for our purposes */	127	/* we hijack an hopefully unused CV flag for our purposes */
167	#define CVf_SLF 0x4000	128	#define CVf_SLF 0x4000
168	static OP *pp_slf (pTHX);	129	static OP *pp_slf (pTHX);
169		130
…		…
190	static SV *sv_pool_size;	151	static SV *sv_pool_size;
191	static SV *sv_async_pool_idle; /* description string */	152	static SV *sv_async_pool_idle; /* description string */
192	static AV *av_async_pool; /* idle pool */	153	static AV *av_async_pool; /* idle pool */
193	static SV *sv_Coro; /* class string */	154	static SV *sv_Coro; /* class string */
194	static CV *cv_pool_handler;	155	static CV *cv_pool_handler;
195	static CV *cv_coro_state_new;
196		156
197	/* Coro::AnyEvent */	157	/* Coro::AnyEvent */
198	static SV *sv_activity;	158	static SV *sv_activity;
		159
		160	/* enable processtime/realtime profiling */
		161	static char enable_times;
		162	typedef U32 coro_ts[2];
		163	static coro_ts time_real, time_cpu;
		164	static char times_valid;
199		165
200	static struct coro_cctx *cctx_first;	166	static struct coro_cctx *cctx_first;
201	static int cctx_count, cctx_idle;	167	static int cctx_count, cctx_idle;
202		168
203	enum {	169	enum {
…		…
238	enum {	204	enum {
239	CF_RUNNING = 0x0001, /* coroutine is running */	205	CF_RUNNING = 0x0001, /* coroutine is running */
240	CF_READY = 0x0002, /* coroutine is ready */	206	CF_READY = 0x0002, /* coroutine is ready */
241	CF_NEW = 0x0004, /* has never been switched to */	207	CF_NEW = 0x0004, /* has never been switched to */
242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	208	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
		209	CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
243	};	210	};
244		211
245	/* the structure where most of the perl state is stored, overlaid on the cxstack */	212	/* the structure where most of the perl state is stored, overlaid on the cxstack */
246	typedef struct	213	typedef struct
247	{	214	{
…		…
260	/* this is a structure representing a perl-level coroutine */	227	/* this is a structure representing a perl-level coroutine */
261	struct coro {	228	struct coro {
262	/* the C coroutine allocated to this perl coroutine, if any */	229	/* the C coroutine allocated to this perl coroutine, if any */
263	coro_cctx *cctx;	230	coro_cctx *cctx;
264		231
		232	/* ready queue */
		233	struct coro *next_ready;
		234
265	/* state data */	235	/* state data */
266	struct CoroSLF slf_frame; /* saved slf frame */	236	struct CoroSLF slf_frame; /* saved slf frame */
267	AV *mainstack;	237	AV *mainstack;
268	perl_slots *slot; /* basically the saved sp */	238	perl_slots *slot; /* basically the saved sp */
269		239
270	CV *startcv; /* the CV to execute */	240	CV *startcv; /* the CV to execute */
271	AV *args; /* data associated with this coroutine (initial args) */	241	AV *args; /* data associated with this coroutine (initial args) */
272	int refcnt; /* coroutines are refcounted, yes */	242	int refcnt; /* coroutines are refcounted, yes */
273	int flags; /* CF_ flags */	243	int flags; /* CF_ flags */
274	HV *hv; /* the perl hash associated with this coro, if any */	244	HV *hv; /* the perl hash associated with this coro, if any */
275	void (*on_destroy)(pTHX_ struct coro *coro);	245	void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
276		246
277	/* statistics */	247	/* statistics */
278	int usecount; /* number of transfers to this coro */	248	int usecount; /* number of transfers to this coro */
279		249
280	/* coro process data */	250	/* coro process data */
…		…
285	/* async_pool */	255	/* async_pool */
286	SV *saved_deffh;	256	SV *saved_deffh;
287	SV *invoke_cb;	257	SV *invoke_cb;
288	AV *invoke_av;	258	AV *invoke_av;
289		259
		260	/* on_enter/on_leave */
		261	AV *on_enter;
		262	AV *on_leave;
		263
		264	/* swap_sv */
		265	AV *swap_sv;
		266
		267	/* times */
		268	coro_ts t_cpu, t_real;
		269
290	/* linked list */	270	/* linked list */
291	struct coro *next, *prev;	271	struct coro *next, *prev;
292	};	272	};
293		273
294	typedef struct coro *Coro__State;	274	typedef struct coro *Coro__State;
…		…
299	/* the mainr easonw e don't support windows process emulation */	279	/* the mainr easonw e don't support windows process emulation */
300	static struct CoroSLF slf_frame; /* the current slf frame */	280	static struct CoroSLF slf_frame; /* the current slf frame */
301		281
302	/** Coro ********************************************************************/	282	/** Coro ********************************************************************/
303		283
304	#define PRIO_MAX 3	284	#define CORO_PRIO_MAX 3
305	#define PRIO_HIGH 1	285	#define CORO_PRIO_HIGH 1
306	#define PRIO_NORMAL 0	286	#define CORO_PRIO_NORMAL 0
307	#define PRIO_LOW -1	287	#define CORO_PRIO_LOW -1
308	#define PRIO_IDLE -3	288	#define CORO_PRIO_IDLE -3
309	#define PRIO_MIN -4	289	#define CORO_PRIO_MIN -4
310		290
311	/* for Coro.pm */	291	/* for Coro.pm */
312	static SV *coro_current;	292	static SV *coro_current;
313	static SV *coro_readyhook;	293	static SV *coro_readyhook;
314	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	294	static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315	static CV *cv_coro_run, *cv_coro_terminate;	295	static CV *cv_coro_run, *cv_coro_terminate;
316	static struct coro *coro_first;	296	static struct coro *coro_first;
317	#define coro_nready coroapi.nready	297	#define coro_nready coroapi.nready
		298
		299	/** Coro::Select ************************************************************/
		300
		301	static OP *(*coro_old_pp_sselect) (pTHX);
		302	static SV *coro_select_select;
		303
		304	/* horrible hack, but if it works... */
		305	static OP *
		306	coro_pp_sselect (pTHX)
		307	{
		308	dSP;
		309	PUSHMARK (SP - 4); /* fake argument list */
		310	XPUSHs (coro_select_select);
		311	PUTBACK;
		312
		313	/* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
		314	PL_op->op_flags |= OPf_STACKED;
		315	PL_op->op_private = 0;
		316	return PL_ppaddr [OP_ENTERSUB](aTHX);
		317	}
		318
		319	/** time stuff **************************************************************/
		320
		321	#ifdef HAS_GETTIMEOFDAY
		322
		323	static void
		324	coro_u2time (pTHX_ UV ret[2])
		325	{
		326	struct timeval tv;
		327	gettimeofday (&tv, 0);
		328
		329	ret [0] = tv.tv_sec;
		330	ret [1] = tv.tv_usec;
		331	}
		332
		333	static double
		334	coro_nvtime ()
		335	{
		336	struct timeval tv;
		337	gettimeofday (&tv, 0);
		338
		339	return tv.tv_sec + tv.tv_usec * 1e-6;
		340	}
		341
		342	static void
		343	time_init (void)
		344	{
		345	nvtime = coro_nvtime;
		346	u2time = coro_u2time;
		347	}
		348
		349	#else
		350
		351	static void
		352	time_init (void)
		353	{
		354	SV **svp;
		355
		356	require_pv ("Time::HiRes");
		357
		358	svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
		359
		360	if (!svp) croak ("Time::HiRes is required");
		361	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
		362
		363	nvtime = INT2PTR (double (*)(), SvIV (*svp));
		364
		365	svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
		366	u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
		367	}
		368
		369	#endif
318		370
319	/** lowlevel stuff **********************************************************/	371	/** lowlevel stuff **********************************************************/
320		372
321	static SV *	373	static SV *
322	coro_get_sv (pTHX_ const char *name, int create)	374	coro_get_sv (pTHX_ const char *name, int create)
…		…
346	get_hv (name, create);	398	get_hv (name, create);
347	#endif	399	#endif
348	return get_hv (name, create);	400	return get_hv (name, create);
349	}	401	}
350		402
351	/* may croak */	403	INLINE void
352	INLINE CV *	404	coro_times_update ()
353	coro_sv_2cv (pTHX_ SV *sv)
354	{	405	{
355	HV *st;	406	#ifdef coro_clock_gettime
356	GV *gvp;	407	struct timespec ts;
357	return sv_2cv (sv, &st, &gvp, 0);	408
		409	ts.tv_sec = ts.tv_nsec = 0;
		410	coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
		411	time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
		412
		413	ts.tv_sec = ts.tv_nsec = 0;
		414	coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
		415	time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
		416	#else
		417	dTHX;
		418	UV tv[2];
		419
		420	u2time (aTHX_ tv);
		421	time_real [0] = tv [0];
		422	time_real [1] = tv [1] * 1000;
		423	#endif
		424	}
		425
		426	INLINE void
		427	coro_times_add (struct coro *c)
		428	{
		429	c->t_real [1] += time_real [1];
		430	if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
		431	c->t_real [0] += time_real [0];
		432
		433	c->t_cpu [1] += time_cpu [1];
		434	if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
		435	c->t_cpu [0] += time_cpu [0];
		436	}
		437
		438	INLINE void
		439	coro_times_sub (struct coro *c)
		440	{
		441	if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
		442	c->t_real [1] -= time_real [1];
		443	c->t_real [0] -= time_real [0];
		444
		445	if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
		446	c->t_cpu [1] -= time_cpu [1];
		447	c->t_cpu [0] -= time_cpu [0];
358	}	448	}
359		449
360	/*****************************************************************************/	450	/*****************************************************************************/
361	/* magic glue */	451	/* magic glue */
362		452
…		…
462	static int	552	static int
463	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)	553	coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464	{	554	{
465	AV *padlist;	555	AV *padlist;
466	AV *av = (AV *)mg->mg_obj;	556	AV *av = (AV *)mg->mg_obj;
		557
		558	/* perl manages to free our internal AV and _then_ call us */
		559	if (IN_DESTRUCT)
		560	return 0;
467		561
468	/* casting is fun. */	562	/* casting is fun. */
469	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))	563	while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470	free_padlist (aTHX_ padlist);	564	free_padlist (aTHX_ padlist);
471		565
…		…
520	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	614	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521	}	615	}
522		616
523	/** load & save, init *******************************************************/	617	/** load & save, init *******************************************************/
524		618
		619	/* swap sv heads, at least logically */
		620	static void
		621	swap_svs (pTHX_ Coro__State c)
		622	{
		623	int i;
		624
		625	for (i = 0; i <= AvFILLp (c->swap_sv); )
		626	{
		627	SV *a = AvARRAY (c->swap_sv)[i++];
		628	SV *b = AvARRAY (c->swap_sv)[i++];
		629
		630	const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
		631	SV tmp;
		632
		633	/* swap sv_any */
		634	SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
		635
		636	/* swap sv_flags */
		637	SvFLAGS (&tmp) = SvFLAGS (a);
		638	SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
		639	SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
		640
		641	#if PERL_VERSION_ATLEAST (5,10,0)
		642	/* perl 5.10 complicates this _quite_ a bit, but it also is
		643	* much faster, so no quarrels here. alternatively, we could
		644	* sv_upgrade to avoid this.
		645	*/
		646	{
		647	/* swap sv_u */
		648	tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
		649
		650	/* if SvANY points to the head, we need to adjust the pointers,
		651	* as the pointer for a still points to b, and maybe vice versa.
		652	*/
		653	#define svany_in_head(type) \
		654	(((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
		655
		656	if (svany_in_head (SvTYPE (a)))
		657	SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
		658
		659	if (svany_in_head (SvTYPE (b)))
		660	SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
		661	}
		662	#endif
		663	}
		664	}
		665
		666	#define SWAP_SVS(coro) \
		667	if (expect_false ((coro)->swap_sv)) \
		668	swap_svs (aTHX_ (coro))
		669
		670	static void
		671	on_enterleave_call (pTHX_ SV *cb);
		672
525	static void	673	static void
526	load_perl (pTHX_ Coro__State c)	674	load_perl (pTHX_ Coro__State c)
527	{	675	{
528	perl_slots *slot = c->slot;	676	perl_slots *slot = c->slot;
529	c->slot = 0;	677	c->slot = 0;
…		…
556	PUTBACK;	704	PUTBACK;
557	}	705	}
558		706
559	slf_frame = c->slf_frame;	707	slf_frame = c->slf_frame;
560	CORO_THROW = c->except;	708	CORO_THROW = c->except;
		709
		710	if (expect_false (enable_times))
		711	{
		712	if (expect_false (!times_valid))
		713	coro_times_update ();
		714
		715	coro_times_sub (c);
		716	}
		717
		718	if (expect_false (c->on_enter))
		719	{
		720	int i;
		721
		722	for (i = 0; i <= AvFILLp (c->on_enter); ++i)
		723	on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
		724	}
		725
		726	SWAP_SVS (c);
561	}	727	}
562		728
563	static void	729	static void
564	save_perl (pTHX_ Coro__State c)	730	save_perl (pTHX_ Coro__State c)
565	{	731	{
		732	SWAP_SVS (c);
		733
		734	if (expect_false (c->on_leave))
		735	{
		736	int i;
		737
		738	for (i = AvFILLp (c->on_leave); i >= 0; --i)
		739	on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
		740	}
		741
		742	times_valid = 0;
		743
		744	if (expect_false (enable_times))
		745	{
		746	coro_times_update (); times_valid = 1;
		747	coro_times_add (c);
		748	}
		749
566	c->except = CORO_THROW;	750	c->except = CORO_THROW;
567	c->slf_frame = slf_frame;	751	c->slf_frame = slf_frame;
568		752
569	{	753	{
570	dSP;	754	dSP;
…		…
583	{	767	{
584	while (expect_true (cxix >= 0))	768	while (expect_true (cxix >= 0))
585	{	769	{
586	PERL_CONTEXT *cx = &ccstk[cxix--];	770	PERL_CONTEXT *cx = &ccstk[cxix--];
587		771
588	if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))	772	if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
589	{	773	{
590	CV *cv = cx->blk_sub.cv;	774	CV *cv = cx->blk_sub.cv;
591		775
592	if (expect_true (CvDEPTH (cv)))	776	if (expect_true (CvDEPTH (cv)))
593	{	777	{
…		…
617	/* we manually unroll here, as usually 2 slots is enough */	801	/* we manually unroll here, as usually 2 slots is enough */
618	if (SLOT_COUNT >= 1) CXINC;	802	if (SLOT_COUNT >= 1) CXINC;
619	if (SLOT_COUNT >= 2) CXINC;	803	if (SLOT_COUNT >= 2) CXINC;
620	if (SLOT_COUNT >= 3) CXINC;	804	if (SLOT_COUNT >= 3) CXINC;
621	{	805	{
622	int i;	806	unsigned int i;
623	for (i = 3; i < SLOT_COUNT; ++i)	807	for (i = 3; i < SLOT_COUNT; ++i)
624	CXINC;	808	CXINC;
625	}	809	}
626	cxstack_ix -= SLOT_COUNT; /* undo allocation */	810	cxstack_ix -= SLOT_COUNT; /* undo allocation */
627		811
…		…
769	#endif	953	#endif
770		954
771	/*	955	/*
772	* This overrides the default magic get method of %SIG elements.	956	* This overrides the default magic get method of %SIG elements.
773	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook	957	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
774	* and instead of tryign to save and restore the hash elements, we just provide	958	* and instead of trying to save and restore the hash elements, we just provide
775	* readback here.	959	* readback here.
776	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
777	* not expecting this to actually change the hook. This is a potential problem
778	* when a schedule happens then, but we ignore this.
779	*/	960	*/
780	static int	961	static int
781	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)	962	coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
782	{	963	{
783	const char *s = MgPV_nolen_const (mg);	964	const char *s = MgPV_nolen_const (mg);
…		…
836	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;	1017	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
837		1018
838	if (svp)	1019	if (svp)
839	{	1020	{
840	SV *old = *svp;	1021	SV *old = *svp;
841	*svp = newSVsv (sv);	1022	*svp = SvOK (sv) ? newSVsv (sv) : 0;
842	SvREFCNT_dec (old);	1023	SvREFCNT_dec (old);
843	return 0;	1024	return 0;
844	}	1025	}
845	}	1026	}
846		1027
…		…
864	slf_check_repeat (pTHX_ struct CoroSLF *frame)	1045	slf_check_repeat (pTHX_ struct CoroSLF *frame)
865	{	1046	{
866	return 1;	1047	return 1;
867	}	1048	}
868		1049
869	static UNOP coro_setup_op;	1050	static UNOP init_perl_op;
870		1051
871	static void NOINLINE /* noinline to keep it out of the transfer fast path */	1052	static void NOINLINE /* noinline to keep it out of the transfer fast path */
872	coro_setup (pTHX_ struct coro *coro)	1053	init_perl (pTHX_ struct coro *coro)
873	{	1054	{
874	/*	1055	/*
875	* emulate part of the perl startup here.	1056	* emulate part of the perl startup here.
876	*/	1057	*/
877	coro_init_stacks (aTHX);	1058	coro_init_stacks (aTHX);
…		…
884	PL_comppad_name_fill = 0;	1065	PL_comppad_name_fill = 0;
885	PL_comppad_name_floor = 0;	1066	PL_comppad_name_floor = 0;
886	PL_curpm = 0;	1067	PL_curpm = 0;
887	PL_curpad = 0;	1068	PL_curpad = 0;
888	PL_localizing = 0;	1069	PL_localizing = 0;
889	PL_dirty = 0;
890	PL_restartop = 0;	1070	PL_restartop = 0;
891	#if PERL_VERSION_ATLEAST (5,10,0)	1071	#if PERL_VERSION_ATLEAST (5,10,0)
892	PL_parser = 0;	1072	PL_parser = 0;
893	#endif	1073	#endif
894	PL_hints = 0;	1074	PL_hints = 0;
…		…
926	*/	1106	*/
927	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	1107	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
928	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	1108	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
929		1109
930	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	1110	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
931	coro_setup_op.op_next = PL_op;	1111	init_perl_op.op_next = PL_op;
932	coro_setup_op.op_type = OP_ENTERSUB;	1112	init_perl_op.op_type = OP_ENTERSUB;
933	coro_setup_op.op_ppaddr = pp_slf;	1113	init_perl_op.op_ppaddr = pp_slf;
934	/* no flags etc. required, as an init function won't be called */	1114	/* no flags etc. required, as an init function won't be called */
935		1115
936	PL_op = (OP *)&coro_setup_op;	1116	PL_op = (OP *)&init_perl_op;
937		1117
938	/* copy throw, in case it was set before coro_setup */	1118	/* copy throw, in case it was set before init_perl */
939	CORO_THROW = coro->except;	1119	CORO_THROW = coro->except;
		1120
		1121	SWAP_SVS (coro);
		1122
		1123	if (expect_false (enable_times))
		1124	{
		1125	coro_times_update ();
		1126	coro_times_sub (coro);
		1127	}
940	}	1128	}
941		1129
942	static void	1130	static void
943	coro_unwind_stacks (pTHX)	1131	coro_unwind_stacks (pTHX)
944	{	1132	{
…		…
959	dounwind (-1);	1147	dounwind (-1);
960	}	1148	}
961	}	1149	}
962		1150
963	static void	1151	static void
964	coro_destruct_perl (pTHX_ struct coro *coro)	1152	destroy_perl (pTHX_ struct coro *coro)
965	{	1153	{
		1154	SV *svf [9];
		1155
		1156	{
		1157	struct coro *current = SvSTATE_current;
		1158
		1159	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
		1160
		1161	save_perl (aTHX_ current);
		1162	load_perl (aTHX_ coro);
		1163
966	coro_unwind_stacks (aTHX);	1164	coro_unwind_stacks (aTHX);
		1165	coro_destruct_stacks (aTHX);
967		1166
968	SvREFCNT_dec (GvSV (PL_defgv));	1167	/* restore swapped sv's */
969	SvREFCNT_dec (GvAV (PL_defgv));	1168	SWAP_SVS (coro);
970	SvREFCNT_dec (GvSV (PL_errgv));
971	SvREFCNT_dec (PL_defoutgv);
972	SvREFCNT_dec (PL_rs);
973	SvREFCNT_dec (GvSV (irsgv));
974	SvREFCNT_dec (GvHV (PL_hintgv));
975		1169
976	SvREFCNT_dec (PL_diehook);	1170	// now save some sv's to be free'd later
977	SvREFCNT_dec (PL_warnhook);	1171	svf [0] = GvSV (PL_defgv);
		1172	svf [1] = (SV *)GvAV (PL_defgv);
		1173	svf [2] = GvSV (PL_errgv);
		1174	svf [3] = (SV *)PL_defoutgv;
		1175	svf [4] = PL_rs;
		1176	svf [5] = GvSV (irsgv);
		1177	svf [6] = (SV *)GvHV (PL_hintgv);
		1178	svf [7] = PL_diehook;
		1179	svf [8] = PL_warnhook;
		1180	assert (9 == sizeof (svf) / sizeof (*svf));
		1181
		1182	load_perl (aTHX_ current);
978		1183	}
		1184
		1185	{
		1186	unsigned int i;
		1187
		1188	for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
		1189	SvREFCNT_dec (svf [i]);
		1190
979	SvREFCNT_dec (coro->saved_deffh);	1191	SvREFCNT_dec (coro->saved_deffh);
980	SvREFCNT_dec (coro->rouse_cb);	1192	SvREFCNT_dec (coro->rouse_cb);
981	SvREFCNT_dec (coro->invoke_cb);	1193	SvREFCNT_dec (coro->invoke_cb);
982	SvREFCNT_dec (coro->invoke_av);	1194	SvREFCNT_dec (coro->invoke_av);
983		1195	}
984	coro_destruct_stacks (aTHX);
985	}	1196	}
986		1197
987	INLINE void	1198	INLINE void
988	free_coro_mortal (pTHX)	1199	free_coro_mortal (pTHX)
989	{	1200	{
…		…
1186	/* somebody or something will hit me for both perl_run and PL_restartop */	1397	/* somebody or something will hit me for both perl_run and PL_restartop */
1187	PL_restartop = PL_op;	1398	PL_restartop = PL_op;
1188	perl_run (PL_curinterp);	1399	perl_run (PL_curinterp);
1189	/*	1400	/*
1190	* Unfortunately, there is no way to get at the return values of the	1401	* Unfortunately, there is no way to get at the return values of the
1191	* coro body here, as perl_run destroys these	1402	* coro body here, as perl_run destroys these. Likewise, we cannot catch
		1403	* runtime errors here, as this is just a random interpreter, not a thread.
1192	*/	1404	*/
1193		1405
1194	/*	1406	/*
1195	* If perl-run returns we assume exit() was being called or the coro	1407	* If perl-run returns we assume exit() was being called or the coro
1196	* fell off the end, which seems to be the only valid (non-bug)	1408	* fell off the end, which seems to be the only valid (non-bug)
…		…
1357	/* TODO: throwing up here is considered harmful */	1569	/* TODO: throwing up here is considered harmful */
1358		1570
1359	if (expect_true (prev != next))	1571	if (expect_true (prev != next))
1360	{	1572	{
1361	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))	1573	if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1362	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");	1574	croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1363		1575
1364	if (expect_false (next->flags & CF_RUNNING))
1365	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1366
1367	if (expect_false (next->flags & CF_DESTROYED))	1576	if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1368	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,");	1577	croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1369		1578
1370	#if !PERL_VERSION_ATLEAST (5,10,0)	1579	#if !PERL_VERSION_ATLEAST (5,10,0)
1371	if (expect_false (PL_lex_state != LEX_NOTPARSING))	1580	if (expect_false (PL_lex_state != LEX_NOTPARSING))
1372	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");	1581	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1373	#endif	1582	#endif
…		…
1406	if (expect_false (next->flags & CF_NEW))	1615	if (expect_false (next->flags & CF_NEW))
1407	{	1616	{
1408	/* need to start coroutine */	1617	/* need to start coroutine */
1409	next->flags &= ~CF_NEW;	1618	next->flags &= ~CF_NEW;
1410	/* setup coroutine call */	1619	/* setup coroutine call */
1411	coro_setup (aTHX_ next);	1620	init_perl (aTHX_ next);
1412	}	1621	}
1413	else	1622	else
1414	load_perl (aTHX_ next);	1623	load_perl (aTHX_ next);
1415		1624
1416	/* possibly untie and reuse the cctx */	1625	/* possibly untie and reuse the cctx */
…		…
1461	coro_state_destroy (pTHX_ struct coro *coro)	1670	coro_state_destroy (pTHX_ struct coro *coro)
1462	{	1671	{
1463	if (coro->flags & CF_DESTROYED)	1672	if (coro->flags & CF_DESTROYED)
1464	return 0;	1673	return 0;
1465		1674
1466	if (coro->on_destroy)	1675	if (coro->on_destroy && !PL_dirty)
1467	coro->on_destroy (aTHX_ coro);	1676	coro->on_destroy (aTHX_ coro);
1468		1677
1469	coro->flags |= CF_DESTROYED;	1678	coro->flags |= CF_DESTROYED;
1470		1679
1471	if (coro->flags & CF_READY)	1680	if (coro->flags & CF_READY)
…		…
1479		1688
1480	if (coro->mainstack	1689	if (coro->mainstack
1481	&& coro->mainstack != main_mainstack	1690	&& coro->mainstack != main_mainstack
1482	&& coro->slot	1691	&& coro->slot
1483	&& !PL_dirty)	1692	&& !PL_dirty)
1484	{
1485	struct coro temp;
1486
1487	assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1488
1489	save_perl (aTHX_ &temp);
1490	load_perl (aTHX_ coro);
1491
1492	coro_destruct_perl (aTHX_ coro);	1693	destroy_perl (aTHX_ coro);
1493		1694
1494	load_perl (aTHX_ &temp);	1695	if (coro->next) coro->next->prev = coro->prev;
1495		1696	if (coro->prev) coro->prev->next = coro->next;
1496	coro->slot = 0;	1697	if (coro == coro_first) coro_first = coro->next;
1497	}
1498		1698
1499	cctx_destroy (coro->cctx);	1699	cctx_destroy (coro->cctx);
1500	SvREFCNT_dec (coro->startcv);	1700	SvREFCNT_dec (coro->startcv);
1501	SvREFCNT_dec (coro->args);	1701	SvREFCNT_dec (coro->args);
		1702	SvREFCNT_dec (coro->swap_sv);
1502	SvREFCNT_dec (CORO_THROW);	1703	SvREFCNT_dec (CORO_THROW);
1503
1504	if (coro->next) coro->next->prev = coro->prev;
1505	if (coro->prev) coro->prev->next = coro->next;
1506	if (coro == coro_first) coro_first = coro->next;
1507		1704
1508	return 1;	1705	return 1;
1509	}	1706	}
1510		1707
1511	static int	1708	static int
…		…
1561		1758
1562	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1759	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1563	TRANSFER (ta, 1);	1760	TRANSFER (ta, 1);
1564	}	1761	}
1565		1762
1566	/*****************************************************************************/
1567	/* gensub: simple closure generation utility */
1568
1569	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1570
1571	/* create a closure from XS, returns a code reference */
1572	/* the arg can be accessed via GENSUB_ARG from the callback */
1573	/* the callback must use dXSARGS/XSRETURN */
1574	static SV *
1575	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1576	{
1577	CV *cv = (CV *)newSV (0);
1578
1579	sv_upgrade ((SV *)cv, SVt_PVCV);
1580
1581	CvANON_on (cv);
1582	CvISXSUB_on (cv);
1583	CvXSUB (cv) = xsub;
1584	GENSUB_ARG = arg;
1585
1586	return newRV_noinc ((SV *)cv);
1587	}
1588
1589	/** Coro ********************************************************************/	1763	/** Coro ********************************************************************/
1590		1764
1591	INLINE void	1765	INLINE void
1592	coro_enq (pTHX_ struct coro *coro)	1766	coro_enq (pTHX_ struct coro *coro)
1593	{	1767	{
1594	av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));	1768	struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1595	}
1596		1769
1597	INLINE SV *	1770	SvREFCNT_inc_NN (coro->hv);
		1771
		1772	coro->next_ready = 0;
		1773	*(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
		1774	ready [1] = coro;
		1775	}
		1776
		1777	INLINE struct coro *
1598	coro_deq (pTHX)	1778	coro_deq (pTHX)
1599	{	1779	{
1600	int prio;	1780	int prio;
1601		1781
1602	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )	1782	for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1603	if (AvFILLp (coro_ready [prio]) >= 0)	1783	{
1604	return av_shift (coro_ready [prio]);	1784	struct coro **ready = coro_ready [prio];
		1785
		1786	if (ready [0])
		1787	{
		1788	struct coro *coro = ready [0];
		1789	ready [0] = coro->next_ready;
		1790	return coro;
		1791	}
		1792	}
1605		1793
1606	return 0;	1794	return 0;
		1795	}
		1796
		1797	static void
		1798	invoke_sv_ready_hook_helper (void)
		1799	{
		1800	dTHX;
		1801	dSP;
		1802
		1803	ENTER;
		1804	SAVETMPS;
		1805
		1806	PUSHMARK (SP);
		1807	PUTBACK;
		1808	call_sv (coro_readyhook, G_VOID | G_DISCARD);
		1809
		1810	FREETMPS;
		1811	LEAVE;
1607	}	1812	}
1608		1813
1609	static int	1814	static int
1610	api_ready (pTHX_ SV *coro_sv)	1815	api_ready (pTHX_ SV *coro_sv)
1611	{	1816	{
1612	struct coro *coro;
1613	SV *sv_hook;
1614	void (*xs_hook)(void);
1615
1616	coro = SvSTATE (coro_sv);	1817	struct coro *coro = SvSTATE (coro_sv);
1617		1818
1618	if (coro->flags & CF_READY)	1819	if (coro->flags & CF_READY)
1619	return 0;	1820	return 0;
1620		1821
1621	coro->flags |= CF_READY;	1822	coro->flags |= CF_READY;
1622		1823
1623	sv_hook = coro_nready ? 0 : coro_readyhook;
1624	xs_hook = coro_nready ? 0 : coroapi.readyhook;
1625
1626	coro_enq (aTHX_ coro);	1824	coro_enq (aTHX_ coro);
1627	++coro_nready;
1628		1825
1629	if (sv_hook)	1826	if (!coro_nready++)
1630	{	1827	if (coroapi.readyhook)
1631	dSP;	1828	coroapi.readyhook ();
1632
1633	ENTER;
1634	SAVETMPS;
1635
1636	PUSHMARK (SP);
1637	PUTBACK;
1638	call_sv (sv_hook, G_VOID | G_DISCARD);
1639
1640	FREETMPS;
1641	LEAVE;
1642	}
1643
1644	if (xs_hook)
1645	xs_hook ();
1646		1829
1647	return 1;	1830	return 1;
1648	}	1831	}
1649		1832
1650	static int	1833	static int
…		…
1673	static void	1856	static void
1674	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1857	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1675	{	1858	{
1676	for (;;)	1859	for (;;)
1677	{	1860	{
1678	SV *next_sv = coro_deq (aTHX);	1861	struct coro *next = coro_deq (aTHX);
1679		1862
1680	if (expect_true (next_sv))	1863	if (expect_true (next))
1681	{	1864	{
1682	struct coro *next = SvSTATE_hv (next_sv);
1683
1684	/* cannot transfer to destroyed coros, skip and look for next */	1865	/* cannot transfer to destroyed coros, skip and look for next */
1685	if (expect_false (next->flags & CF_DESTROYED))	1866	if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1686	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */	1867	SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1687	else	1868	else
1688	{	1869	{
1689	next->flags &= ~CF_READY;	1870	next->flags &= ~CF_READY;
1690	--coro_nready;	1871	--coro_nready;
1691		1872
…		…
1697	{	1878	{
1698	/* nothing to schedule: call the idle handler */	1879	/* nothing to schedule: call the idle handler */
1699	if (SvROK (sv_idle)	1880	if (SvROK (sv_idle)
1700	&& SvOBJECT (SvRV (sv_idle)))	1881	&& SvOBJECT (SvRV (sv_idle)))
1701	{	1882	{
		1883	if (SvRV (sv_idle) == SvRV (coro_current))
		1884	croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
		1885
1702	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */	1886	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1703	api_ready (aTHX_ SvRV (sv_idle));	1887	api_ready (aTHX_ SvRV (sv_idle));
1704	--coro_nready;	1888	--coro_nready;
1705	}	1889	}
1706	else	1890	else
1707	{	1891	{
		1892	/* TODO: deprecated, remove, cannot work reliably *//*D*/
1708	dSP;	1893	dSP;
1709		1894
1710	ENTER;	1895	ENTER;
1711	SAVETMPS;	1896	SAVETMPS;
1712		1897
…		…
1858	{	2043	{
1859	int i;	2044	int i;
1860	HV *hv = (HV *)SvRV (coro_current);	2045	HV *hv = (HV *)SvRV (coro_current);
1861	AV *av = newAV ();	2046	AV *av = newAV ();
1862		2047
		2048	/* items are actually not so common, so optimise for this case */
		2049	if (items)
		2050	{
1863	av_extend (av, items - 1);	2051	av_extend (av, items - 1);
		2052
1864	for (i = 0; i < items; ++i)	2053	for (i = 0; i < items; ++i)
1865	av_push (av, SvREFCNT_inc_NN (arg [i]));	2054	av_push (av, SvREFCNT_inc_NN (arg [i]));
		2055	}
1866		2056
1867	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);	2057	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
1868		2058
1869	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */	2059	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
1870	api_ready (aTHX_ sv_manager);	2060	api_ready (aTHX_ sv_manager);
…		…
1960		2150
1961	static void	2151	static void
1962	coro_rouse_callback (pTHX_ CV *cv)	2152	coro_rouse_callback (pTHX_ CV *cv)
1963	{	2153	{
1964	dXSARGS;	2154	dXSARGS;
1965	SV *data = (SV *)GENSUB_ARG;	2155	SV *data = (SV *)S_GENSUB_ARG;
1966		2156
1967	if (SvTYPE (SvRV (data)) != SVt_PVAV)	2157	if (SvTYPE (SvRV (data)) != SVt_PVAV)
1968	{	2158	{
1969	/* first call, set args */	2159	/* first call, set args */
		2160	SV *coro = SvRV (data);
1970	AV *av = newAV ();	2161	AV *av = newAV ();
1971	SV *coro = SvRV (data);
1972		2162
1973	SvRV_set (data, (SV *)av);	2163	SvRV_set (data, (SV *)av);
1974	api_ready (aTHX_ coro);
1975	SvREFCNT_dec (coro);
1976		2164
1977	/* better take a full copy of the arguments */	2165	/* better take a full copy of the arguments */
1978	while (items--)	2166	while (items--)
1979	av_store (av, items, newSVsv (ST (items)));	2167	av_store (av, items, newSVsv (ST (items)));
		2168
		2169	api_ready (aTHX_ coro);
		2170	SvREFCNT_dec (coro);
1980	}	2171	}
1981		2172
1982	XSRETURN_EMPTY;	2173	XSRETURN_EMPTY;
1983	}	2174	}
1984		2175
…		…
2001		2192
2002	EXTEND (SP, AvFILLp (av) + 1);	2193	EXTEND (SP, AvFILLp (av) + 1);
2003	for (i = 0; i <= AvFILLp (av); ++i)	2194	for (i = 0; i <= AvFILLp (av); ++i)
2004	PUSHs (sv_2mortal (AvARRAY (av)[i]));	2195	PUSHs (sv_2mortal (AvARRAY (av)[i]));
2005		2196
2006	/* we have stolen the elements, so ste length to zero and free */	2197	/* we have stolen the elements, so set length to zero and free */
2007	AvFILLp (av) = -1;	2198	AvFILLp (av) = -1;
2008	av_undef (av);	2199	av_undef (av);
2009		2200
2010	PUTBACK;	2201	PUTBACK;
2011	}	2202	}
…		…
2035	|| SvTYPE (SvRV (cb)) != SVt_PVCV	2226	|| SvTYPE (SvRV (cb)) != SVt_PVCV
2036	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)	2227	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2037	croak ("Coro::rouse_wait called with illegal callback argument,");	2228	croak ("Coro::rouse_wait called with illegal callback argument,");
2038		2229
2039	{	2230	{
2040	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */	2231	CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2041	SV *data = (SV *)GENSUB_ARG;	2232	SV *data = (SV *)S_GENSUB_ARG;
2042		2233
2043	frame->data = (void *)data;	2234	frame->data = (void *)data;
2044	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;	2235	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2045	frame->check = slf_check_rouse_wait;	2236	frame->check = slf_check_rouse_wait;
2046	}	2237	}
…		…
2050	coro_new_rouse_cb (pTHX)	2241	coro_new_rouse_cb (pTHX)
2051	{	2242	{
2052	HV *hv = (HV *)SvRV (coro_current);	2243	HV *hv = (HV *)SvRV (coro_current);
2053	struct coro *coro = SvSTATE_hv (hv);	2244	struct coro *coro = SvSTATE_hv (hv);
2054	SV *data = newRV_inc ((SV *)hv);	2245	SV *data = newRV_inc ((SV *)hv);
2055	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);	2246	SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2056		2247
2057	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);	2248	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2058	SvREFCNT_dec (data); /* magicext increases the refcount */	2249	SvREFCNT_dec (data); /* magicext increases the refcount */
2059		2250
2060	SvREFCNT_dec (coro->rouse_cb);	2251	SvREFCNT_dec (coro->rouse_cb);
…		…
2285	if (PL_op->op_flags & OPf_STACKED)	2476	if (PL_op->op_flags & OPf_STACKED)
2286	{	2477	{
2287	if (items > slf_arga)	2478	if (items > slf_arga)
2288	{	2479	{
2289	slf_arga = items;	2480	slf_arga = items;
2290	free (slf_argv);	2481	Safefree (slf_argv);
2291	slf_argv = malloc (slf_arga * sizeof (SV *));	2482	New (0, slf_argv, slf_arga, SV *);
2292	}	2483	}
2293		2484
2294	slf_argc = items;	2485	slf_argc = items;
2295		2486
2296	for (i = 0; i < items; ++i)	2487	for (i = 0; i < items; ++i)
…		…
2301		2492
2302	PL_op->op_ppaddr = pp_slf;	2493	PL_op->op_ppaddr = pp_slf;
2303	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */	2494	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2304		2495
2305	PL_op = (OP *)&slf_restore;	2496	PL_op = (OP *)&slf_restore;
		2497	}
		2498
		2499	/*****************************************************************************/
		2500	/* dynamic wind */
		2501
		2502	static void
		2503	on_enterleave_call (pTHX_ SV *cb)
		2504	{
		2505	dSP;
		2506
		2507	PUSHSTACK;
		2508
		2509	PUSHMARK (SP);
		2510	PUTBACK;
		2511	call_sv (cb, G_VOID | G_DISCARD);
		2512	SPAGAIN;
		2513
		2514	POPSTACK;
		2515	}
		2516
		2517	static SV *
		2518	coro_avp_pop_and_free (pTHX_ AV **avp)
		2519	{
		2520	AV *av = *avp;
		2521	SV *res = av_pop (av);
		2522
		2523	if (AvFILLp (av) < 0)
		2524	{
		2525	*avp = 0;
		2526	SvREFCNT_dec (av);
		2527	}
		2528
		2529	return res;
		2530	}
		2531
		2532	static void
		2533	coro_pop_on_enter (pTHX_ void *coro)
		2534	{
		2535	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
		2536	SvREFCNT_dec (cb);
		2537	}
		2538
		2539	static void
		2540	coro_pop_on_leave (pTHX_ void *coro)
		2541	{
		2542	SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
		2543	on_enterleave_call (aTHX_ sv_2mortal (cb));
2306	}	2544	}
2307		2545
2308	/*****************************************************************************/	2546	/*****************************************************************************/
2309	/* PerlIO::cede */	2547	/* PerlIO::cede */
2310		2548
…		…
2384	/* Coro::Semaphore & Coro::Signal */	2622	/* Coro::Semaphore & Coro::Signal */
2385		2623
2386	static SV *	2624	static SV *
2387	coro_waitarray_new (pTHX_ int count)	2625	coro_waitarray_new (pTHX_ int count)
2388	{	2626	{
2389	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	2627	/* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2390	AV *av = newAV ();	2628	AV *av = newAV ();
2391	SV **ary;	2629	SV **ary;
2392		2630
2393	/* unfortunately, building manually saves memory */	2631	/* unfortunately, building manually saves memory */
2394	Newx (ary, 2, SV *);	2632	Newx (ary, 2, SV *);
…		…
2536	{	2774	{
2537	if (items >= 2)	2775	if (items >= 2)
2538	{	2776	{
2539	/* callback form */	2777	/* callback form */
2540	AV *av = (AV *)SvRV (arg [0]);	2778	AV *av = (AV *)SvRV (arg [0]);
2541	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);	2779	SV *cb_cv = s_get_cv_croak (arg [1]);
2542		2780
2543	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));	2781	av_push (av, SvREFCNT_inc_NN (cb_cv));
2544		2782
2545	if (SvIVX (AvARRAY (av)[0]) > 0)	2783	if (SvIVX (AvARRAY (av)[0]) > 0)
2546	coro_semaphore_adjust (aTHX_ av, 0);	2784	coro_semaphore_adjust (aTHX_ av, 0);
2547		2785
2548	frame->prepare = prepare_nop;	2786	frame->prepare = prepare_nop;
…		…
2572	AvARRAY (av)[0] = AvARRAY (av)[1];	2810	AvARRAY (av)[0] = AvARRAY (av)[1];
2573	AvARRAY (av)[1] = cb;	2811	AvARRAY (av)[1] = cb;
2574		2812
2575	cb = av_shift (av);	2813	cb = av_shift (av);
2576		2814
		2815	if (SvTYPE (cb) == SVt_PVCV)
		2816	{
		2817	dSP;
		2818	PUSHMARK (SP);
		2819	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2820	PUTBACK;
		2821	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2822	}
		2823	else
		2824	{
2577	api_ready (aTHX_ cb);	2825	api_ready (aTHX_ cb);
2578	sv_setiv (cb, 0); /* signal waiter */	2826	sv_setiv (cb, 0); /* signal waiter */
		2827	}
		2828
2579	SvREFCNT_dec (cb);	2829	SvREFCNT_dec (cb);
2580		2830
2581	--count;	2831	--count;
2582	}	2832	}
2583	}	2833	}
…		…
2592	static void	2842	static void
2593	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2843	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2594	{	2844	{
2595	AV *av = (AV *)SvRV (arg [0]);	2845	AV *av = (AV *)SvRV (arg [0]);
2596		2846
		2847	if (items >= 2)
		2848	{
		2849	SV *cb_cv = s_get_cv_croak (arg [1]);
		2850	av_push (av, SvREFCNT_inc_NN (cb_cv));
		2851
2597	if (SvIVX (AvARRAY (av)[0]))	2852	if (SvIVX (AvARRAY (av)[0]))
		2853	coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
		2854
		2855	frame->prepare = prepare_nop;
		2856	frame->check = slf_check_nop;
		2857	}
		2858	else if (SvIVX (AvARRAY (av)[0]))
2598	{	2859	{
2599	SvIVX (AvARRAY (av)[0]) = 0;	2860	SvIVX (AvARRAY (av)[0]) = 0;
2600	frame->prepare = prepare_nop;	2861	frame->prepare = prepare_nop;
2601	frame->check = slf_check_nop;	2862	frame->check = slf_check_nop;
2602	}	2863	}
2603	else	2864	else
2604	{	2865	{
2605	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */	2866	SV *waiter = newSVsv (coro_current); /* owned by signal av */
2606		2867
2607	av_push (av, waiter);	2868	av_push (av, waiter);
2608		2869
2609	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */	2870	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2610	frame->prepare = prepare_schedule;	2871	frame->prepare = prepare_schedule;
…		…
2628		2889
2629	static void	2890	static void
2630	coro_aio_callback (pTHX_ CV *cv)	2891	coro_aio_callback (pTHX_ CV *cv)
2631	{	2892	{
2632	dXSARGS;	2893	dXSARGS;
2633	AV *state = (AV *)GENSUB_ARG;	2894	AV *state = (AV *)S_GENSUB_ARG;
2634	SV *coro = av_pop (state);	2895	SV *coro = av_pop (state);
2635	SV *data_sv = newSV (sizeof (struct io_state));	2896	SV *data_sv = newSV (sizeof (struct io_state));
2636		2897
2637	av_extend (state, items - 1);	2898	av_extend (state, items - 1);
2638		2899
…		…
2752		3013
2753	for (i = 0; i < items; ++i)	3014	for (i = 0; i < items; ++i)
2754	PUSHs (arg [i]);	3015	PUSHs (arg [i]);
2755		3016
2756	/* now push the callback closure */	3017	/* now push the callback closure */
2757	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));	3018	PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2758		3019
2759	/* now call the AIO function - we assume our request is uncancelable */	3020	/* now call the AIO function - we assume our request is uncancelable */
2760	PUTBACK;	3021	PUTBACK;
2761	call_sv ((SV *)req, G_VOID | G_DISCARD);	3022	call_sv ((SV *)req, G_VOID | G_DISCARD);
2762	}	3023	}
2763		3024
2764	/* now that the requets is going, we loop toll we have a result */	3025	/* now that the request is going, we loop till we have a result */
2765	frame->data = (void *)state;	3026	frame->data = (void *)state;
2766	frame->prepare = prepare_schedule;	3027	frame->prepare = prepare_schedule;
2767	frame->check = slf_check_aio_req;	3028	frame->check = slf_check_aio_req;
2768	}	3029	}
2769		3030
…		…
2780	/*****************************************************************************/	3041	/*****************************************************************************/
2781		3042
2782	#if CORO_CLONE	3043	#if CORO_CLONE
2783	# include "clone.c"	3044	# include "clone.c"
2784	#endif	3045	#endif
		3046
		3047	/*****************************************************************************/
		3048
		3049	static SV *
		3050	coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
		3051	{
		3052	SV *coro_sv;
		3053	struct coro *coro;
		3054	MAGIC *mg;
		3055	HV *hv;
		3056	SV *cb;
		3057	int i;
		3058
		3059	if (argc > 0)
		3060	{
		3061	cb = s_get_cv_croak (argv [0]);
		3062
		3063	if (!is_coro)
		3064	{
		3065	if (CvISXSUB (cb))
		3066	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		3067
		3068	if (!CvROOT (cb))
		3069	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		3070	}
		3071	}
		3072
		3073	Newz (0, coro, 1, struct coro);
		3074	coro->args = newAV ();
		3075	coro->flags = CF_NEW;
		3076
		3077	if (coro_first) coro_first->prev = coro;
		3078	coro->next = coro_first;
		3079	coro_first = coro;
		3080
		3081	coro->hv = hv = newHV ();
		3082	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
		3083	mg->mg_flags |= MGf_DUP;
		3084	coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
		3085
		3086	if (argc > 0)
		3087	{
		3088	av_extend (coro->args, argc + is_coro - 1);
		3089
		3090	if (is_coro)
		3091	{
		3092	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		3093	cb = (SV *)cv_coro_run;
		3094	}
		3095
		3096	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		3097
		3098	for (i = 1; i < argc; i++)
		3099	av_push (coro->args, newSVsv (argv [i]));
		3100	}
		3101
		3102	return coro_sv;
		3103	}
2785		3104
2786	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	3105	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2787		3106
2788	PROTOTYPES: DISABLE	3107	PROTOTYPES: DISABLE
2789		3108
…		…
2842	coroapi.prepare_nop = prepare_nop;	3161	coroapi.prepare_nop = prepare_nop;
2843	coroapi.prepare_schedule = prepare_schedule;	3162	coroapi.prepare_schedule = prepare_schedule;
2844	coroapi.prepare_cede = prepare_cede;	3163	coroapi.prepare_cede = prepare_cede;
2845	coroapi.prepare_cede_notself = prepare_cede_notself;	3164	coroapi.prepare_cede_notself = prepare_cede_notself;
2846		3165
2847	{	3166	time_init ();
2848	SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2849		3167
2850	if (!svp) croak ("Time::HiRes is required");
2851	if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2852
2853	nvtime = INT2PTR (double (*)(), SvIV (*svp));
2854	}
2855
2856	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	3168	assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2857	}	3169	}
2858		3170
2859	SV *	3171	SV *
2860	new (char *klass, ...)	3172	new (SV *klass, ...)
2861	ALIAS:	3173	ALIAS:
2862	Coro::new = 1	3174	Coro::new = 1
2863	CODE:	3175	CODE:
2864	{	3176	RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2865	struct coro *coro;	3177	OUTPUT:
2866	MAGIC *mg;
2867	HV *hv;
2868	CV *cb;
2869	int i;
2870
2871	if (items > 1)
2872	{
2873	cb = coro_sv_2cv (aTHX_ ST (1));
2874
2875	if (!ix)
2876	{
2877	if (CvISXSUB (cb))
2878	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2879
2880	if (!CvROOT (cb))
2881	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2882	}
2883	}
2884
2885	Newz (0, coro, 1, struct coro);
2886	coro->args = newAV ();
2887	coro->flags = CF_NEW;
2888
2889	if (coro_first) coro_first->prev = coro;
2890	coro->next = coro_first;
2891	coro_first = coro;
2892
2893	coro->hv = hv = newHV ();
2894	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2895	mg->mg_flags |= MGf_DUP;
2896	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2897
2898	if (items > 1)
2899	{
2900	av_extend (coro->args, items - 1 + ix - 1);
2901
2902	if (ix)
2903	{
2904	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2905	cb = cv_coro_run;
2906	}
2907
2908	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2909
2910	for (i = 2; i < items; i++)
2911	av_push (coro->args, newSVsv (ST (i)));
2912	}
2913	}
2914	OUTPUT:
2915	RETVAL	3178	RETVAL
2916		3179
2917	void	3180	void
2918	transfer (...)	3181	transfer (...)
2919	PROTOTYPE: $$	3182	PROTOTYPE: $$
…		…
3008	eval = 1	3271	eval = 1
3009	CODE:	3272	CODE:
3010	{	3273	{
3011	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))	3274	if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3012	{	3275	{
3013	struct coro temp;	3276	struct coro *current = SvSTATE_current;
3014		3277
3015	if (!(coro->flags & CF_RUNNING))	3278	if (current != coro)
3016	{	3279	{
3017	PUTBACK;	3280	PUTBACK;
3018	save_perl (aTHX_ &temp);	3281	save_perl (aTHX_ current);
3019	load_perl (aTHX_ coro);	3282	load_perl (aTHX_ coro);
		3283	SPAGAIN;
3020	}	3284	}
3021		3285
3022	{
3023	dSP;
3024	ENTER;
3025	SAVETMPS;
3026	PUTBACK;
3027	PUSHSTACK;	3286	PUSHSTACK;
		3287
3028	PUSHMARK (SP);	3288	PUSHMARK (SP);
		3289	PUTBACK;
3029		3290
3030	if (ix)	3291	if (ix)
3031	eval_sv (coderef, 0);	3292	eval_sv (coderef, 0);
3032	else	3293	else
3033	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	3294	call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3034		3295
3035	POPSTACK;	3296	POPSTACK;
3036	SPAGAIN;	3297	SPAGAIN;
3037	FREETMPS;
3038	LEAVE;
3039	PUTBACK;
3040	}
3041		3298
3042	if (!(coro->flags & CF_RUNNING))	3299	if (current != coro)
3043	{	3300	{
		3301	PUTBACK;
3044	save_perl (aTHX_ coro);	3302	save_perl (aTHX_ coro);
3045	load_perl (aTHX_ &temp);	3303	load_perl (aTHX_ current);
3046	SPAGAIN;	3304	SPAGAIN;
3047	}	3305	}
3048	}	3306	}
3049	}	3307	}
3050		3308
…		…
3054	ALIAS:	3312	ALIAS:
3055	is_ready = CF_READY	3313	is_ready = CF_READY
3056	is_running = CF_RUNNING	3314	is_running = CF_RUNNING
3057	is_new = CF_NEW	3315	is_new = CF_NEW
3058	is_destroyed = CF_DESTROYED	3316	is_destroyed = CF_DESTROYED
		3317	is_suspended = CF_SUSPENDED
3059	CODE:	3318	CODE:
3060	RETVAL = boolSV (coro->flags & ix);	3319	RETVAL = boolSV (coro->flags & ix);
3061	OUTPUT:	3320	OUTPUT:
3062	RETVAL	3321	RETVAL
3063		3322
3064	void	3323	void
3065	throw (Coro::State self, SV *throw = &PL_sv_undef)	3324	throw (Coro::State self, SV *exception = &PL_sv_undef)
3066	PROTOTYPE: $;$	3325	PROTOTYPE: $;$
3067	CODE:	3326	CODE:
3068	{	3327	{
3069	struct coro *current = SvSTATE_current;	3328	struct coro *current = SvSTATE_current;
3070	SV **throwp = self == current ? &CORO_THROW : &self->except;	3329	SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3071	SvREFCNT_dec (*throwp);	3330	SvREFCNT_dec (*exceptionp);
3072	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3331	SvGETMAGIC (exception);
		3332	*exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3073	}	3333	}
3074		3334
3075	void	3335	void
3076	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)	3336	api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3077	PROTOTYPE: $;$	3337	PROTOTYPE: $;$
…		…
3128	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;	3388	SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3129		3389
3130	SV *tmp = *src; *src = *dst; *dst = tmp;	3390	SV *tmp = *src; *src = *dst; *dst = tmp;
3131	}	3391	}
3132		3392
		3393	void
		3394	cancel (Coro::State self)
		3395	CODE:
		3396	coro_state_destroy (aTHX_ self);
		3397	coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
		3398
		3399
		3400	SV *
		3401	enable_times (int enabled = enable_times)
		3402	CODE:
		3403	{
		3404	RETVAL = boolSV (enable_times);
		3405
		3406	if (enabled != enable_times)
		3407	{
		3408	enable_times = enabled;
		3409
		3410	coro_times_update ();
		3411	(enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
		3412	}
		3413	}
		3414	OUTPUT:
		3415	RETVAL
		3416
		3417	void
		3418	times (Coro::State self)
		3419	PPCODE:
		3420	{
		3421	struct coro *current = SvSTATE (coro_current);
		3422
		3423	if (expect_false (current == self))
		3424	{
		3425	coro_times_update ();
		3426	coro_times_add (SvSTATE (coro_current));
		3427	}
		3428
		3429	EXTEND (SP, 2);
		3430	PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
		3431	PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
		3432
		3433	if (expect_false (current == self))
		3434	coro_times_sub (SvSTATE (coro_current));
		3435	}
		3436
		3437	void
		3438	swap_sv (Coro::State coro, SV *sv, SV *swapsv)
		3439	CODE:
		3440	{
		3441	struct coro *current = SvSTATE_current;
		3442
		3443	if (current == coro)
		3444	SWAP_SVS (current);
		3445
		3446	if (!coro->swap_sv)
		3447	coro->swap_sv = newAV ();
		3448
		3449	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
		3450	av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
		3451
		3452	if (current == coro)
		3453	SWAP_SVS (current);
		3454	}
		3455
3133		3456
3134	MODULE = Coro::State PACKAGE = Coro	3457	MODULE = Coro::State PACKAGE = Coro
3135		3458
3136	BOOT:	3459	BOOT:
3137	{	3460	{
3138	int i;
3139
3140	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3461	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3141	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3462	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3142	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);	3463	cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3143	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);	3464	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3144	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);	3465	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
…		…
3148	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);	3469	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3149		3470
3150	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);	3471	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3151	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);	3472	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3152	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);	3473	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3153	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);	3474	CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3154		3475
3155	coro_stash = gv_stashpv ("Coro", TRUE);	3476	coro_stash = gv_stashpv ("Coro", TRUE);
3156		3477
3157	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3478	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3158	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3479	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3159	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	3480	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3160	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	3481	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3161	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	3482	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3162	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	3483	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3163
3164	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3165	coro_ready[i] = newAV ();
3166		3484
3167	{	3485	{
3168	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3486	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3169		3487
3170	coroapi.schedule = api_schedule;	3488	coroapi.schedule = api_schedule;
…		…
3180	sv_setiv (sv, (IV)&coroapi);	3498	sv_setiv (sv, (IV)&coroapi);
3181	SvREADONLY_on (sv);	3499	SvREADONLY_on (sv);
3182	}	3500	}
3183	}	3501	}
3184		3502
		3503	SV *
		3504	async (...)
		3505	PROTOTYPE: &@
		3506	CODE:
		3507	RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
		3508	api_ready (aTHX_ RETVAL);
		3509	OUTPUT:
		3510	RETVAL
		3511
3185	void	3512	void
3186	terminate (...)	3513	terminate (...)
3187	CODE:	3514	CODE:
3188	CORO_EXECUTE_SLF_XS (slf_init_terminate);	3515	CORO_EXECUTE_SLF_XS (slf_init_terminate);
3189		3516
…		…
3209		3536
3210	void	3537	void
3211	cede_notself (...)	3538	cede_notself (...)
3212	CODE:	3539	CODE:
3213	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3540	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3214
3215	void
3216	_cancel (Coro::State self)
3217	CODE:
3218	coro_state_destroy (aTHX_ self);
3219	coro_call_on_destroy (aTHX_ self);
3220		3541
3221	void	3542	void
3222	_set_current (SV *current)	3543	_set_current (SV *current)
3223	PROTOTYPE: $	3544	PROTOTYPE: $
3224	CODE:	3545	CODE:
…		…
3228	void	3549	void
3229	_set_readyhook (SV *hook)	3550	_set_readyhook (SV *hook)
3230	PROTOTYPE: $	3551	PROTOTYPE: $
3231	CODE:	3552	CODE:
3232	SvREFCNT_dec (coro_readyhook);	3553	SvREFCNT_dec (coro_readyhook);
		3554	SvGETMAGIC (hook);
		3555	if (SvOK (hook))
		3556	{
3233	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;	3557	coro_readyhook = newSVsv (hook);
		3558	CORO_READYHOOK = invoke_sv_ready_hook_helper;
		3559	}
		3560	else
		3561	{
		3562	coro_readyhook = 0;
		3563	CORO_READYHOOK = 0;
		3564	}
3234		3565
3235	int	3566	int
3236	prio (Coro::State coro, int newprio = 0)	3567	prio (Coro::State coro, int newprio = 0)
3237	PROTOTYPE: $;$	3568	PROTOTYPE: $;$
3238	ALIAS:	3569	ALIAS:
…		…
3244	if (items > 1)	3575	if (items > 1)
3245	{	3576	{
3246	if (ix)	3577	if (ix)
3247	newprio = coro->prio - newprio;	3578	newprio = coro->prio - newprio;
3248		3579
3249	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	3580	if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3250	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	3581	if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3251		3582
3252	coro->prio = newprio;	3583	coro->prio = newprio;
3253	}	3584	}
3254	}	3585	}
3255	OUTPUT:	3586	OUTPUT:
…		…
3270	RETVAL = coro_nready;	3601	RETVAL = coro_nready;
3271	OUTPUT:	3602	OUTPUT:
3272	RETVAL	3603	RETVAL
3273		3604
3274	void	3605	void
		3606	suspend (Coro::State self)
		3607	PROTOTYPE: $
		3608	CODE:
		3609	self->flags |= CF_SUSPENDED;
		3610
		3611	void
		3612	resume (Coro::State self)
		3613	PROTOTYPE: $
		3614	CODE:
		3615	self->flags &= ~CF_SUSPENDED;
		3616
		3617	void
3275	_pool_handler (...)	3618	_pool_handler (...)
3276	CODE:	3619	CODE:
3277	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);	3620	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3278		3621
3279	void	3622	void
…		…
3290	for (i = 1; i < items; ++i)	3633	for (i = 1; i < items; ++i)
3291	av_push (av, SvREFCNT_inc_NN (ST (i)));	3634	av_push (av, SvREFCNT_inc_NN (ST (i)));
3292		3635
3293	if ((SV *)hv == &PL_sv_undef)	3636	if ((SV *)hv == &PL_sv_undef)
3294	{	3637	{
3295	PUSHMARK (SP);	3638	SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3296	EXTEND (SP, 2);
3297	PUSHs (sv_Coro);
3298	PUSHs ((SV *)cv_pool_handler);
3299	PUTBACK;
3300	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3301	SPAGAIN;
3302
3303	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));	3639	hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
		3640	SvREFCNT_dec (sv);
3304	}	3641	}
3305		3642
3306	{	3643	{
3307	struct coro *coro = SvSTATE_hv (hv);	3644	struct coro *coro = SvSTATE_hv (hv);
3308		3645
…		…
3332	rouse_wait (...)	3669	rouse_wait (...)
3333	PROTOTYPE: ;$	3670	PROTOTYPE: ;$
3334	PPCODE:	3671	PPCODE:
3335	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);	3672	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3336		3673
		3674	void
		3675	on_enter (SV *block)
		3676	ALIAS:
		3677	on_leave = 1
		3678	PROTOTYPE: &
		3679	CODE:
		3680	{
		3681	struct coro *coro = SvSTATE_current;
		3682	AV **avp = ix ? &coro->on_leave : &coro->on_enter;
		3683
		3684	block = s_get_cv_croak (block);
		3685
		3686	if (!*avp)
		3687	*avp = newAV ();
		3688
		3689	av_push (*avp, SvREFCNT_inc (block));
		3690
		3691	if (!ix)
		3692	on_enterleave_call (aTHX_ block);
		3693
		3694	LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3695	SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
		3696	ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
		3697	}
		3698
3337		3699
3338	MODULE = Coro::State PACKAGE = PerlIO::cede	3700	MODULE = Coro::State PACKAGE = PerlIO::cede
3339		3701
3340	BOOT:	3702	BOOT:
3341	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3703	PerlIO_define_layer (aTHX_ &PerlIO_cede);
…		…
3344	MODULE = Coro::State PACKAGE = Coro::Semaphore	3706	MODULE = Coro::State PACKAGE = Coro::Semaphore
3345		3707
3346	SV *	3708	SV *
3347	new (SV *klass, SV *count = 0)	3709	new (SV *klass, SV *count = 0)
3348	CODE:	3710	CODE:
		3711	{
		3712	int semcnt = 1;
		3713
		3714	if (count)
		3715	{
		3716	SvGETMAGIC (count);
		3717
		3718	if (SvOK (count))
		3719	semcnt = SvIV (count);
		3720	}
		3721
3349	RETVAL = sv_bless (	3722	RETVAL = sv_bless (
3350	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),	3723	coro_waitarray_new (aTHX_ semcnt),
3351	GvSTASH (CvGV (cv))	3724	GvSTASH (CvGV (cv))
3352	);	3725	);
		3726	}
3353	OUTPUT:	3727	OUTPUT:
3354	RETVAL	3728	RETVAL
3355		3729
3356	# helper for Coro::Channel	3730	# helper for Coro::Channel and others
3357	SV *	3731	SV *
3358	_alloc (int count)	3732	_alloc (int count)
3359	CODE:	3733	CODE:
3360	RETVAL = coro_waitarray_new (aTHX_ count);	3734	RETVAL = coro_waitarray_new (aTHX_ count);
3361	OUTPUT:	3735	OUTPUT:
…		…
3419	for (i = 1; i <= wcount; ++i)	3793	for (i = 1; i <= wcount; ++i)
3420	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3794	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3421	}	3795	}
3422	}	3796	}
3423		3797
		3798	MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
		3799
		3800	void
		3801	_may_delete (SV *sem, int count, int extra_refs)
		3802	PPCODE:
		3803	{
		3804	AV *av = (AV *)SvRV (sem);
		3805
		3806	if (SvREFCNT ((SV *)av) == 1 + extra_refs
		3807	&& AvFILLp (av) == 0 /* no waiters, just count */
		3808	&& SvIV (AvARRAY (av)[0]) == count)
		3809	XSRETURN_YES;
		3810
		3811	XSRETURN_NO;
		3812	}
		3813
3424	MODULE = Coro::State PACKAGE = Coro::Signal	3814	MODULE = Coro::State PACKAGE = Coro::Signal
3425		3815
3426	SV *	3816	SV *
3427	new (SV *klass)	3817	new (SV *klass)
3428	CODE:	3818	CODE:
…		…
3499		3889
3500	void	3890	void
3501	_register (char *target, char *proto, SV *req)	3891	_register (char *target, char *proto, SV *req)
3502	CODE:	3892	CODE:
3503	{	3893	{
3504	CV *req_cv = coro_sv_2cv (aTHX_ req);	3894	SV *req_cv = s_get_cv_croak (req);
3505	/* newXSproto doesn't return the CV on 5.8 */	3895	/* newXSproto doesn't return the CV on 5.8 */
3506	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3896	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3507	sv_setpv ((SV *)slf_cv, proto);	3897	sv_setpv ((SV *)slf_cv, proto);
3508	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3898	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3509	}	3899	}
3510		3900
		3901	MODULE = Coro::State PACKAGE = Coro::Select
		3902
		3903	void
		3904	patch_pp_sselect ()
		3905	CODE:
		3906	if (!coro_old_pp_sselect)
		3907	{
		3908	coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
		3909	coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
		3910	PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
		3911	}
		3912
		3913	void
		3914	unpatch_pp_sselect ()
		3915	CODE:
		3916	if (coro_old_pp_sselect)
		3917	{
		3918	PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
		3919	coro_old_pp_sselect = 0;
		3920	}
		3921

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