[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs.
Revision 1.326 by root, Mon Nov 24 04:56:38 2008 UTC

…		…
16		16
17	#ifdef WIN32	17	#ifdef WIN32
18	# undef setjmp	18	# undef setjmp
19	# undef longjmp	19	# undef longjmp
20	# undef _exit	20	# undef _exit
21	# define setjmp _setjmp // deep magic, don't ask	21	# define setjmp _setjmp /* deep magic */
22	#else	22	#else
23	# include <inttypes.h> /* most portable stdint.h */	23	# include <inttypes.h> /* most portable stdint.h */
24	#endif	24	#endif
25		25
26	#ifdef HAVE_MMAP	26	#ifdef HAVE_MMAP
…		…
55		55
56	#define PERL_VERSION_ATLEAST(a,b,c) \	56	#define PERL_VERSION_ATLEAST(a,b,c) \
57	(PERL_REVISION > (a) \	57	(PERL_REVISION > (a) \
58	\|\| (PERL_REVISION == (a) \	58	\|\| (PERL_REVISION == (a) \
59	&& (PERL_VERSION > (b) \	59	&& (PERL_VERSION > (b) \
60	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))	60	\|\| (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61		61
62	#if !PERL_VERSION_ATLEAST (5,6,0)	62	#if !PERL_VERSION_ATLEAST (5,6,0)
63	# ifndef PL_ppaddr	63	# ifndef PL_ppaddr
64	# define PL_ppaddr ppaddr	64	# define PL_ppaddr ppaddr
65	# endif	65	# endif
…		…
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
100	#ifndef CvISXSUB_on	100	#ifndef CvISXSUB_on
101	# define CvISXSUB_on(cv) (void)cv	101	# define CvISXSUB_on(cv) (void)cv
102	#endif	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
103		109
104	/* 5.8.7 */	110	/* 5.8.7 */
105	#ifndef SvRV_set	111	#ifndef SvRV_set
106	# define SvRV_set(s,v) SvRV(s) = (v)	112	# define SvRV_set(s,v) SvRV(s) = (v)
107	#endif	113	#endif
…		…
120	#endif	126	#endif
121		127
122	/* The next macros try to return the current stack pointer, in an as	128	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	129	* portable way as possible. */
124	#if __GNUC__ >= 4	130	#if __GNUC__ >= 4
		131	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	132	# define STACKLEVEL __builtin_frame_address (0)
126	#else	133	#else
127	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel	134	# define dSTACKLEVEL volatile void *stacklevel
		135	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	136	#endif
129		137
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	138	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		139
132	#if __GNUC__ >= 3	140	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	151	#define expect_true(expr) expect ((expr) != 0, 1)
144		152
145	#define NOINLINE attribute ((noinline))	153	#define NOINLINE attribute ((noinline))
146		154
147	#include "CoroAPI.h"	155	#include "CoroAPI.h"
		156	#define GCoroAPI (&coroapi) /* very sneaky */
148		157
149	#ifdef USE_ITHREADS	158	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	159	# if CORO_PTHREAD
151	static void *coro_thx;	160	static void *coro_thx;
152	# endif	161	# endif
153	#endif	162	#endif
154		163
155	static double (nvtime)(); / so why doesn't it take void? */	164	static double (nvtime)(); / so why doesn't it take void? */
		165
		166	/* we hijack an hopefully unused CV flag for our purposes */
		167	#define CVf_SLF 0x4000
		168	static OP *pp_slf (pTHX);
156		169
157	static U32 cctx_gen;	170	static U32 cctx_gen;
158	static size_t cctx_stacksize = CORO_STACKSIZE;	171	static size_t cctx_stacksize = CORO_STACKSIZE;
159	static struct CoroAPI coroapi;	172	static struct CoroAPI coroapi;
160	static AV main_mainstack; / used to differentiate between $main and others */	173	static AV main_mainstack; / used to differentiate between $main and others */
161	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
162	static HV coro_state_stash, coro_stash;	175	static HV coro_state_stash, coro_stash;
163	static volatile SV coro_mortal; / will be freed/thrown after next transfer */	176	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
164		177
		178	static AV av_destroy; / destruction queue */
		179	static SV sv_manager; / the manager coro */
		180	static SV sv_idle; / $Coro::idle */
		181
165	static GV irsgv; / $/ */	182	static GV irsgv; / $/ */
166	static GV stdoutgv; / STDOUT /	183	static GV stdoutgv; / STDOUT /
167	static SV *rv_diehook;	184	static SV *rv_diehook;
168	static SV *rv_warnhook;	185	static SV *rv_warnhook;
169	static HV hv_sig; / %SIG */	186	static HV hv_sig; / %SIG */
170		187
171	/* async_pool helper stuff */	188	/* async_pool helper stuff */
172	static SV *sv_pool_rss;	189	static SV *sv_pool_rss;
173	static SV *sv_pool_size;	190	static SV *sv_pool_size;
		191	static SV sv_async_pool_idle; / description string */
174	static AV *av_async_pool;	192	static AV av_async_pool; / idle pool */
		193	static SV sv_Coro; / class string */
		194	static CV *cv_pool_handler;
		195	static CV *cv_coro_state_new;
175		196
176	/* Coro::AnyEvent */	197	/* Coro::AnyEvent */
177	static SV *sv_activity;	198	static SV *sv_activity;
178		199
179	static struct coro_cctx *cctx_first;	200	static struct coro_cctx *cctx_first;
…		…
208	int valgrind_id;	229	int valgrind_id;
209	#endif	230	#endif
210	unsigned char flags;	231	unsigned char flags;
211	} coro_cctx;	232	} coro_cctx;
212		233
		234	coro_cctx cctx_current; / the currently running cctx */
		235
		236	/*****************************************************************************/
		237
213	enum {	238	enum {
214	CF_RUNNING = 0x0001, /* coroutine is running */	239	CF_RUNNING = 0x0001, /* coroutine is running */
215	CF_READY = 0x0002, /* coroutine is ready */	240	CF_READY = 0x0002, /* coroutine is ready */
216	CF_NEW = 0x0004, /* has never been switched to */	241	CF_NEW = 0x0004, /* has never been switched to */
217	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	242	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
239	/* state data */	264	/* state data */
240	struct CoroSLF slf_frame; /* saved slf frame */	265	struct CoroSLF slf_frame; /* saved slf frame */
241	AV *mainstack;	266	AV *mainstack;
242	perl_slots slot; / basically the saved sp */	267	perl_slots slot; / basically the saved sp */
243		268
		269	CV startcv; / the CV to execute */
244	AV args; / data associated with this coroutine (initial args) */	270	AV args; / data associated with this coroutine (initial args) */
245	int refcnt; /* coroutines are refcounted, yes */	271	int refcnt; /* coroutines are refcounted, yes */
246	int flags; /* CF_ flags */	272	int flags; /* CF_ flags */
247	HV hv; / the perl hash associated with this coro, if any */	273	HV hv; / the perl hash associated with this coro, if any */
248	void (on_destroy)(pTHX_ struct coro coro);	274	void (on_destroy)(pTHX_ struct coro coro);
249		275
250	/* statistics */	276	/* statistics */
251	int usecount; /* number of transfers to this coro */	277	int usecount; /* number of transfers to this coro */
252		278
253	/* coro process data */	279	/* coro process data */
254	int prio;	280	int prio;
255	SV throw; / exception to be thrown */	281	SV except; / exception to be thrown */
		282	SV *rouse_cb;
256		283
257	/* async_pool */	284	/* async_pool */
258	SV *saved_deffh;	285	SV *saved_deffh;
		286	SV *invoke_cb;
		287	AV *invoke_av;
259		288
260	/* linked list */	289	/* linked list */
261	struct coro next, prev;	290	struct coro next, prev;
262	};	291	};
263		292
…		…
266		295
267	/* the following variables are effectively part of the perl context */	296	/* the following variables are effectively part of the perl context */
268	/* and get copied between struct coro and these variables */	297	/* and get copied between struct coro and these variables */
269	/* the mainr easonw e don't support windows process emulation */	298	/* the mainr easonw e don't support windows process emulation */
270	static struct CoroSLF slf_frame; /* the current slf frame */	299	static struct CoroSLF slf_frame; /* the current slf frame */
271	static SV *coro_throw;
272		300
273	/ Coro ******************************************************************/	301	/ Coro ******************************************************************/
274		302
275	#define PRIO_MAX 3	303	#define PRIO_MAX 3
276	#define PRIO_HIGH 1	304	#define PRIO_HIGH 1
…		…
281		309
282	/* for Coro.pm */	310	/* for Coro.pm */
283	static SV *coro_current;	311	static SV *coro_current;
284	static SV *coro_readyhook;	312	static SV *coro_readyhook;
285	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	313	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		314	static CV cv_coro_run, cv_coro_terminate;
286	static struct coro *coro_first;	315	static struct coro *coro_first;
287	#define coro_nready coroapi.nready	316	#define coro_nready coroapi.nready
288		317
289	/ lowlevel stuff ********************************************************/	318	/ lowlevel stuff ********************************************************/
290		319
…		…
316	get_hv (name, create);	345	get_hv (name, create);
317	#endif	346	#endif
318	return get_hv (name, create);	347	return get_hv (name, create);
319	}	348	}
320		349
		350	/* may croak */
		351	INLINE CV *
		352	coro_sv_2cv (pTHX_ SV *sv)
		353	{
		354	HV *st;
		355	GV *gvp;
		356	return sv_2cv (sv, &st, &gvp, 0);
		357	}
		358
321	static AV *	359	static AV *
322	coro_clone_padlist (pTHX_ CV *cv)	360	coro_derive_padlist (pTHX_ CV *cv)
323	{	361	{
324	AV *padlist = CvPADLIST (cv);	362	AV *padlist = CvPADLIST (cv);
325	AV newpadlist, newpad;	363	AV newpadlist, newpad;
326		364
327	newpadlist = newAV ();	365	newpadlist = newAV ();
…		…
442	else	480	else
443	{	481	{
444	#if CORO_PREFER_PERL_FUNCTIONS	482	#if CORO_PREFER_PERL_FUNCTIONS
445	/* this is probably cleaner? but also slower! */	483	/* this is probably cleaner? but also slower! */
446	/* in practise, it seems to be less stable */	484	/* in practise, it seems to be less stable */
447	CV *cp = Perl_cv_clone (cv);	485	CV *cp = Perl_cv_clone (aTHX_ cv);
448	CvPADLIST (cv) = CvPADLIST (cp);	486	CvPADLIST (cv) = CvPADLIST (cp);
449	CvPADLIST (cp) = 0;	487	CvPADLIST (cp) = 0;
450	SvREFCNT_dec (cp);	488	SvREFCNT_dec (cp);
451	#else	489	#else
452	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	490	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
453	#endif	491	#endif
454	}	492	}
455	}	493	}
456		494
457	static void	495	static void
…		…
505		543
506	PUTBACK;	544	PUTBACK;
507	}	545	}
508		546
509	slf_frame = c->slf_frame;	547	slf_frame = c->slf_frame;
510	coro_throw = c->throw;	548	CORO_THROW = c->except;
511	}	549	}
512		550
513	static void	551	static void
514	save_perl (pTHX_ Coro__State c)	552	save_perl (pTHX_ Coro__State c)
515	{	553	{
516	c->throw = coro_throw;	554	c->except = CORO_THROW;
517	c->slf_frame = slf_frame;	555	c->slf_frame = slf_frame;
518		556
519	{	557	{
520	dSP;	558	dSP;
521	I32 cxix = cxstack_ix;	559	I32 cxix = cxstack_ix;
…		…
596	* of perl.c:init_stacks, except that it uses less memory	634	* of perl.c:init_stacks, except that it uses less memory
597	* on the (sometimes correct) assumption that coroutines do	635	* on the (sometimes correct) assumption that coroutines do
598	* not usually need a lot of stackspace.	636	* not usually need a lot of stackspace.
599	*/	637	*/
600	#if CORO_PREFER_PERL_FUNCTIONS	638	#if CORO_PREFER_PERL_FUNCTIONS
601	# define coro_init_stacks init_stacks	639	# define coro_init_stacks(thx) init_stacks ()
602	#else	640	#else
603	static void	641	static void
604	coro_init_stacks (pTHX)	642	coro_init_stacks (pTHX)
605	{	643	{
606	PL_curstackinfo = new_stackinfo(32, 8);	644	PL_curstackinfo = new_stackinfo(32, 8);
…		…
669	#if !PERL_VERSION_ATLEAST (5,10,0)	707	#if !PERL_VERSION_ATLEAST (5,10,0)
670	Safefree (PL_retstack);	708	Safefree (PL_retstack);
671	#endif	709	#endif
672	}	710	}
673		711
		712	#define CORO_RSS \
		713	rss += sizeof (SYM (curstackinfo)); \
		714	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		715	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		716	rss += SYM (tmps_max) * sizeof (SV *); \
		717	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		718	rss += SYM (scopestack_max) * sizeof (I32); \
		719	rss += SYM (savestack_max) * sizeof (ANY);
		720
674	static size_t	721	static size_t
675	coro_rss (pTHX_ struct coro *coro)	722	coro_rss (pTHX_ struct coro *coro)
676	{	723	{
677	size_t rss = sizeof (*coro);	724	size_t rss = sizeof (*coro);
678		725
679	if (coro->mainstack)	726	if (coro->mainstack)
680	{	727	{
681	perl_slots tmp_slot;
682	perl_slots *slot;
683
684	if (coro->flags & CF_RUNNING)	728	if (coro->flags & CF_RUNNING)
685	{	729	{
686	slot = &tmp_slot;	730	#define SYM(sym) PL_ ## sym
687		731	CORO_RSS;
688	#define VAR(name,type) slot->name = PL_ ## name;
689	# include "state.h"
690	#undef VAR	732	#undef SYM
691	}	733	}
692	else	734	else
693	slot = coro->slot;
694
695	if (slot)
696	{	735	{
697	rss += sizeof (slot->curstackinfo);	736	#define SYM(sym) coro->slot->sym
698	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	737	CORO_RSS;
699	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	738	#undef SYM
700	rss += slot->tmps_max * sizeof (SV *);
701	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
702	rss += slot->scopestack_max * sizeof (I32);
703	rss += slot->savestack_max * sizeof (ANY);
704
705	#if !PERL_VERSION_ATLEAST (5,10,0)
706	rss += slot->retstack_max * sizeof (OP *);
707	#endif
708	}	739	}
709	}	740	}
710		741
711	return rss;	742	return rss;
712	}	743	}
…		…
814	slf_check_nop (pTHX_ struct CoroSLF *frame)	845	slf_check_nop (pTHX_ struct CoroSLF *frame)
815	{	846	{
816	return 0;	847	return 0;
817	}	848	}
818		849
		850	static int
		851	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		852	{
		853	return 1;
		854	}
		855
		856	static UNOP coro_setup_op;
		857
819	static void NOINLINE /* noinline to keep it out of the transfer fast path */	858	static void NOINLINE /* noinline to keep it out of the transfer fast path */
820	coro_setup (pTHX_ struct coro *coro)	859	coro_setup (pTHX_ struct coro *coro)
821	{	860	{
822	/*	861	/*
823	* emulate part of the perl startup here.	862	* emulate part of the perl startup here.
…		…
851	{	890	{
852	dSP;	891	dSP;
853	UNOP myop;	892	UNOP myop;
854		893
855	Zero (&myop, 1, UNOP);	894	Zero (&myop, 1, UNOP);
856	myop.op_next = Nullop;	895	myop.op_next = Nullop;
		896	myop.op_type = OP_ENTERSUB;
857	myop.op_flags = OPf_WANT_VOID;	897	myop.op_flags = OPf_WANT_VOID;
858		898
859	PUSHMARK (SP);	899	PUSHMARK (SP);
860	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	900	PUSHs ((SV *)coro->startcv);
861	PUTBACK;	901	PUTBACK;
862	PL_op = (OP *)&myop;	902	PL_op = (OP *)&myop;
863	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	903	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864	SPAGAIN;
865	}	904	}
866		905
867	/* this newly created coroutine might be run on an existing cctx which most	906	/* this newly created coroutine might be run on an existing cctx which most
868	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	907	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
869	*/	908	*/
870	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	909	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
871	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	910	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
872		911
873	coro_throw = coro->throw;	912	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		913	coro_setup_op.op_next = PL_op;
		914	coro_setup_op.op_type = OP_ENTERSUB;
		915	coro_setup_op.op_ppaddr = pp_slf;
		916	/* no flags etc. required, as an init function won't be called */
		917
		918	PL_op = (OP *)&coro_setup_op;
		919
		920	/* copy throw, in case it was set before coro_setup */
		921	CORO_THROW = coro->except;
874	}	922	}
875		923
876	static void	924	static void
877	coro_destruct (pTHX_ struct coro *coro)	925	coro_destruct (pTHX_ struct coro *coro)
878	{	926	{
…		…
902		950
903	SvREFCNT_dec (PL_diehook);	951	SvREFCNT_dec (PL_diehook);
904	SvREFCNT_dec (PL_warnhook);	952	SvREFCNT_dec (PL_warnhook);
905		953
906	SvREFCNT_dec (coro->saved_deffh);	954	SvREFCNT_dec (coro->saved_deffh);
907	SvREFCNT_dec (coro_throw);	955	SvREFCNT_dec (coro->rouse_cb);
		956	SvREFCNT_dec (coro->invoke_cb);
		957	SvREFCNT_dec (coro->invoke_av);
908		958
909	coro_destruct_stacks (aTHX);	959	coro_destruct_stacks (aTHX);
910	}	960	}
911		961
912	INLINE void	962	INLINE void
…		…
922	static int	972	static int
923	runops_trace (pTHX)	973	runops_trace (pTHX)
924	{	974	{
925	COP *oldcop = 0;	975	COP *oldcop = 0;
926	int oldcxix = -2;	976	int oldcxix = -2;
927	struct coro coro = SvSTATE_current; / trace cctx is tied to specific coro */
928	coro_cctx *cctx = coro->cctx;
929		977
930	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))	978	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
931	{	979	{
932	PERL_ASYNC_CHECK ();	980	PERL_ASYNC_CHECK ();
933		981
934	if (cctx->flags & CC_TRACE_ALL)	982	if (cctx_current->flags & CC_TRACE_ALL)
935	{	983	{
936	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)	984	if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
937	{	985	{
938	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	986	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
939	SV bot, top;	987	SV bot, top;
940	AV av = newAV (); / return values */	988	AV av = newAV (); / return values */
941	SV **cb;	989	SV **cb;
…		…
978		1026
979	if (PL_curcop != &PL_compiling)	1027	if (PL_curcop != &PL_compiling)
980	{	1028	{
981	SV **cb;	1029	SV **cb;
982		1030
983	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)	1031	if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
984	{	1032	{
985	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1033	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986		1034
987	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1035	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
988	{	1036	{
989	runops_proc_t old_runops = PL_runops;
990	dSP;	1037	dSP;
991	GV *gv = CvGV (cx->blk_sub.cv);	1038	GV *gv = CvGV (cx->blk_sub.cv);
992	SV *fullname = sv_2mortal (newSV (0));	1039	SV *fullname = sv_2mortal (newSV (0));
993		1040
994	if (isGV (gv))	1041	if (isGV (gv))
…		…
999	SAVETMPS;	1046	SAVETMPS;
1000	EXTEND (SP, 3);	1047	EXTEND (SP, 3);
1001	PUSHMARK (SP);	1048	PUSHMARK (SP);
1002	PUSHs (&PL_sv_yes);	1049	PUSHs (&PL_sv_yes);
1003	PUSHs (fullname);	1050	PUSHs (fullname);
1004	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1051	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1005	PUTBACK;	1052	PUTBACK;
1006	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1053	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1007	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1054	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1008	SPAGAIN;	1055	SPAGAIN;
1009	FREETMPS;	1056	FREETMPS;
…		…
1012	}	1059	}
1013		1060
1014	oldcxix = cxstack_ix;	1061	oldcxix = cxstack_ix;
1015	}	1062	}
1016		1063
1017	if (cctx->flags & CC_TRACE_LINE)	1064	if (cctx_current->flags & CC_TRACE_LINE)
1018	{	1065	{
1019	dSP;	1066	dSP;
1020		1067
1021	PL_runops = RUNOPS_DEFAULT;	1068	PL_runops = RUNOPS_DEFAULT;
1022	ENTER;	1069	ENTER;
…		…
1041		1088
1042	TAINT_NOT;	1089	TAINT_NOT;
1043	return 0;	1090	return 0;
1044	}	1091	}
1045		1092
		1093	static struct CoroSLF cctx_ssl_frame;
		1094
1046	static void	1095	static void
1047	prepare_set_stacklevel (struct coro_transfer_args ta, struct coro_cctx cctx)	1096	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048	{	1097	{
1049	ta->prev = (struct coro *)cctx;
1050	ta->next = 0;	1098	ta->prev = 0;
1051	}	1099	}
1052		1100
1053	/* inject a fake call to Coro::State::_cctx_init into the execution */	1101	static int
1054	/* _cctx_init should be careful, as it could be called at almost any time */	1102	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055	/* during execution of a perl program */	1103	{
1056	/* also initialises PL_top_env */	1104	*frame = cctx_ssl_frame;
		1105
		1106	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
		1107	}
		1108
		1109	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1057	static void NOINLINE	1110	static void NOINLINE
1058	cctx_prepare (pTHX_ coro_cctx *cctx)	1111	cctx_prepare (pTHX)
1059	{	1112	{
1060	dSP;
1061	UNOP myop;
1062
1063	PL_top_env = &PL_start_env;	1113	PL_top_env = &PL_start_env;
1064		1114
1065	if (cctx->flags & CC_TRACE)	1115	if (cctx_current->flags & CC_TRACE)
1066	PL_runops = runops_trace;	1116	PL_runops = runops_trace;
1067		1117
1068	Zero (&myop, 1, UNOP);	1118	/* we already must be executing an SLF op, there is no other valid way
1069	myop.op_next = PL_op;	1119	* that can lead to creation of a new cctx */
1070	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1120	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
		1121	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1071		1122
1072	PUSHMARK (SP);	1123	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073	EXTEND (SP, 2);	1124	cctx_ssl_frame = slf_frame;
1074	PUSHs (sv_2mortal (newSViv ((IV)cctx)));	1125
1075	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1126	slf_frame.prepare = slf_prepare_set_stacklevel;
1076	PUTBACK;	1127	slf_frame.check = slf_check_set_stacklevel;
1077	PL_op = (OP *)&myop;
1078	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079	SPAGAIN;
1080	}	1128	}
1081		1129
1082	/* the tail of transfer: execute stuff we can only do after a transfer */	1130	/* the tail of transfer: execute stuff we can only do after a transfer */
1083	INLINE void	1131	INLINE void
1084	transfer_tail (pTHX)	1132	transfer_tail (pTHX)
…		…
1103	/* normally we would need to skip the entersub here */	1151	/* normally we would need to skip the entersub here */
1104	/* not doing so will re-execute it, which is exactly what we want */	1152	/* not doing so will re-execute it, which is exactly what we want */
1105	/* PL_nop = PL_nop->op_next */	1153	/* PL_nop = PL_nop->op_next */
1106		1154
1107	/* inject a fake subroutine call to cctx_init */	1155	/* inject a fake subroutine call to cctx_init */
1108	cctx_prepare (aTHX_ (coro_cctx *)arg);	1156	cctx_prepare (aTHX);
1109		1157
1110	/* cctx_run is the alternative tail of transfer() */	1158	/* cctx_run is the alternative tail of transfer() */
1111	transfer_tail (aTHX);	1159	transfer_tail (aTHX);
1112		1160
1113	/* somebody or something will hit me for both perl_run and PL_restartop */	1161	/* somebody or something will hit me for both perl_run and PL_restartop */
1114	PL_restartop = PL_op;	1162	PL_restartop = PL_op;
1115	perl_run (PL_curinterp);	1163	perl_run (PL_curinterp);
		1164	/*
		1165	* Unfortunately, there is no way to get at the return values of the
		1166	* coro body here, as perl_run destroys these
		1167	*/
1116		1168
1117	/*	1169	/*
1118	* If perl-run returns we assume exit() was being called or the coro	1170	* If perl-run returns we assume exit() was being called or the coro
1119	* fell off the end, which seems to be the only valid (non-bug)	1171	* fell off the end, which seems to be the only valid (non-bug)
1120	* reason for perl_run to return. We try to exit by jumping to the	1172	* reason for perl_run to return. We try to exit by jumping to the
…		…
1204	cctx_destroy (coro_cctx *cctx)	1256	cctx_destroy (coro_cctx *cctx)
1205	{	1257	{
1206	if (!cctx)	1258	if (!cctx)
1207	return;	1259	return;
1208		1260
		1261	assert (cctx != cctx_current);//D temporary
		1262
1209	--cctx_count;	1263	--cctx_count;
1210	coro_destroy (&cctx->cctx);	1264	coro_destroy (&cctx->cctx);
1211		1265
1212	/* coro_transfer creates new, empty cctx's */	1266	/* coro_transfer creates new, empty cctx's */
1213	if (cctx->sptr)	1267	if (cctx->sptr)
…		…
1276	/* TODO: throwing up here is considered harmful */	1330	/* TODO: throwing up here is considered harmful */
1277		1331
1278	if (expect_true (prev != next))	1332	if (expect_true (prev != next))
1279	{	1333	{
1280	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))	1334	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
1281	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");	1335	croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,");
1282		1336
1283	if (expect_false (next->flags & CF_RUNNING))	1337	if (expect_false (next->flags & CF_RUNNING))
1284	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");	1338	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1285		1339
1286	if (expect_false (next->flags & CF_DESTROYED))	1340	if (expect_false (next->flags & CF_DESTROYED))
…		…
1298	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)	1352	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
1299	{	1353	{
1300	dSTACKLEVEL;	1354	dSTACKLEVEL;
1301		1355
1302	/* sometimes transfer is only called to set idle_sp */	1356	/* sometimes transfer is only called to set idle_sp */
1303	if (expect_false (!next))	1357	if (expect_false (!prev))
1304	{	1358	{
1305	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1359	cctx_current->idle_sp = STACKLEVEL;
1306	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1360	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1307	}	1361	}
1308	else if (expect_true (prev != next))	1362	else if (expect_true (prev != next))
1309	{	1363	{
1310	coro_cctx *prev__cctx;	1364	coro_cctx *cctx_prev;
1311		1365
1312	if (expect_false (prev->flags & CF_NEW))	1366	if (expect_false (prev->flags & CF_NEW))
1313	{	1367	{
1314	/* create a new empty/source context */	1368	/* create a new empty/source context */
1315	prev->cctx = cctx_new_empty ();
1316	prev->flags &= ~CF_NEW;	1369	prev->flags &= ~CF_NEW;
1317	prev->flags \|= CF_RUNNING;	1370	prev->flags \|= CF_RUNNING;
1318	}	1371	}
1319		1372
1320	prev->flags &= ~CF_RUNNING;	1373	prev->flags &= ~CF_RUNNING;
…		…
1331	coro_setup (aTHX_ next);	1384	coro_setup (aTHX_ next);
1332	}	1385	}
1333	else	1386	else
1334	load_perl (aTHX_ next);	1387	load_perl (aTHX_ next);
1335		1388
1336	prev__cctx = prev->cctx;	1389	assert (!prev->cctx);//D temporary
1337		1390
1338	/* possibly untie and reuse the cctx */	1391	/* possibly untie and reuse the cctx */
1339	if (expect_true (	1392	if (expect_true (
1340	prev__cctx->idle_sp == (void *)stacklevel	1393	cctx_current->idle_sp == STACKLEVEL
1341	&& !(prev__cctx->flags & CC_TRACE)	1394	&& !(cctx_current->flags & CC_TRACE)
1342	&& !force_cctx	1395	&& !force_cctx
1343	))	1396	))
1344	{	1397	{
1345	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1398	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1346	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1399	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1347		1400
1348	prev->cctx = 0;
1349
1350	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1401	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1351	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1402	/* without this the next cctx_get might destroy the running cctx while still in use */
1352	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1403	if (expect_false (CCTX_EXPIRED (cctx_current)))
1353	if (!next->cctx)	1404	if (expect_true (!next->cctx))
1354	next->cctx = cctx_get (aTHX);	1405	next->cctx = cctx_get (aTHX);
1355		1406
1356	cctx_put (prev__cctx);	1407	cctx_put (cctx_current);
1357	}	1408	}
		1409	else
		1410	prev->cctx = cctx_current;
1358		1411
1359	++next->usecount;	1412	++next->usecount;
1360		1413
1361	if (expect_true (!next->cctx))	1414	cctx_prev = cctx_current;
1362	next->cctx = cctx_get (aTHX);	1415	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1363		1416
1364	if (expect_false (prev__cctx != next->cctx))	1417	next->cctx = 0;
		1418
		1419	if (expect_false (cctx_prev != cctx_current))
1365	{	1420	{
1366	prev__cctx->top_env = PL_top_env;	1421	cctx_prev->top_env = PL_top_env;
1367	PL_top_env = next->cctx->top_env;	1422	PL_top_env = cctx_current->top_env;
1368	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1423	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1369	}	1424	}
1370		1425
1371	transfer_tail (aTHX);	1426	transfer_tail (aTHX);
1372	}	1427	}
1373	}	1428	}
…		…
1412		1467
1413	coro->slot = 0;	1468	coro->slot = 0;
1414	}	1469	}
1415		1470
1416	cctx_destroy (coro->cctx);	1471	cctx_destroy (coro->cctx);
		1472	SvREFCNT_dec (coro->startcv);
1417	SvREFCNT_dec (coro->args);	1473	SvREFCNT_dec (coro->args);
		1474	SvREFCNT_dec (CORO_THROW);
1418		1475
1419	if (coro->next) coro->next->prev = coro->prev;	1476	if (coro->next) coro->next->prev = coro->prev;
1420	if (coro->prev) coro->prev->next = coro->next;	1477	if (coro->prev) coro->prev->next = coro->next;
1421	if (coro == coro_first) coro_first = coro->next;	1478	if (coro == coro_first) coro_first = coro->next;
1422		1479
…		…
1476		1533
1477	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1478	TRANSFER (ta, 1);	1535	TRANSFER (ta, 1);
1479	}	1536	}
1480		1537
		1538	/*****************************************************************************/
		1539	/* gensub: simple closure generation utility */
		1540
		1541	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1542
		1543	/* create a closure from XS, returns a code reference */
		1544	/* the arg can be accessed via GENSUB_ARG from the callback */
		1545	/* the callback must use dXSARGS/XSRETURN */
		1546	static SV *
		1547	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
		1548	{
		1549	CV cv = (CV )newSV (0);
		1550
		1551	sv_upgrade ((SV *)cv, SVt_PVCV);
		1552
		1553	CvANON_on (cv);
		1554	CvISXSUB_on (cv);
		1555	CvXSUB (cv) = xsub;
		1556	GENSUB_ARG = arg;
		1557
		1558	return newRV_noinc ((SV *)cv);
		1559	}
		1560
1481	/ Coro ******************************************************************/	1561	/ Coro ******************************************************************/
1482		1562
1483	INLINE void	1563	INLINE void
1484	coro_enq (pTHX_ struct coro *coro)	1564	coro_enq (pTHX_ struct coro *coro)
1485	{	1565	{
…		…
1503	{	1583	{
1504	struct coro *coro;	1584	struct coro *coro;
1505	SV *sv_hook;	1585	SV *sv_hook;
1506	void (*xs_hook)(void);	1586	void (*xs_hook)(void);
1507		1587
1508	if (SvROK (coro_sv))
1509	coro_sv = SvRV (coro_sv);
1510
1511	coro = SvSTATE (coro_sv);	1588	coro = SvSTATE (coro_sv);
1512		1589
1513	if (coro->flags & CF_READY)	1590	if (coro->flags & CF_READY)
1514	return 0;	1591	return 0;
1515		1592
…		…
1528	ENTER;	1605	ENTER;
1529	SAVETMPS;	1606	SAVETMPS;
1530		1607
1531	PUSHMARK (SP);	1608	PUSHMARK (SP);
1532	PUTBACK;	1609	PUTBACK;
1533	call_sv (sv_hook, G_DISCARD);	1610	call_sv (sv_hook, G_VOID \| G_DISCARD);
1534	SPAGAIN;
1535		1611
1536	FREETMPS;	1612	FREETMPS;
1537	LEAVE;	1613	LEAVE;
1538	}	1614	}
1539		1615
…		…
1547	api_is_ready (pTHX_ SV *coro_sv)	1623	api_is_ready (pTHX_ SV *coro_sv)
1548	{	1624	{
1549	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1625	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1550	}	1626	}
1551		1627
		1628	/* expects to own a reference to next->hv */
1552	INLINE void	1629	INLINE void
1553	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1630	prepare_schedule_to (pTHX_ struct coro_transfer_args ta, struct coro next)
1554	{	1631	{
1555	SV prev_sv, next_sv;
1556
1557	for (;;)
1558	{
1559	next_sv = coro_deq (aTHX);
1560
1561	/* nothing to schedule: call the idle handler */
1562	if (expect_false (!next_sv))
1563	{
1564	dSP;
1565
1566	ENTER;
1567	SAVETMPS;
1568
1569	PUSHMARK (SP);
1570	PUTBACK;
1571	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1572	SPAGAIN;
1573
1574	FREETMPS;
1575	LEAVE;
1576	continue;
1577	}
1578
1579	ta->next = SvSTATE_hv (next_sv);
1580
1581	/* cannot transfer to destroyed coros, skip and look for next */
1582	if (expect_false (ta->next->flags & CF_DESTROYED))
1583	{
1584	SvREFCNT_dec (next_sv);
1585	/* coro_nready has already been taken care of by destroy */
1586	continue;
1587	}
1588
1589	--coro_nready;
1590	break;
1591	}
1592
1593	/* free this only after the transfer */
1594	prev_sv = SvRV (coro_current);	1632	SV *prev_sv = SvRV (coro_current);
		1633
1595	ta->prev = SvSTATE_hv (prev_sv);	1634	ta->prev = SvSTATE_hv (prev_sv);
		1635	ta->next = next;
		1636
1596	TRANSFER_CHECK (*ta);	1637	TRANSFER_CHECK (*ta);
1597	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));	1638
1598	ta->next->flags &= ~CF_READY;
1599	SvRV_set (coro_current, next_sv);	1639	SvRV_set (coro_current, (SV *)next->hv);
1600		1640
1601	free_coro_mortal (aTHX);	1641	free_coro_mortal (aTHX);
1602	coro_mortal = prev_sv;	1642	coro_mortal = prev_sv;
1603	}	1643	}
1604		1644
		1645	static void
		1646	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
		1647	{
		1648	for (;;)
		1649	{
		1650	SV *next_sv = coro_deq (aTHX);
		1651
		1652	if (expect_true (next_sv))
		1653	{
		1654	struct coro *next = SvSTATE_hv (next_sv);
		1655
		1656	/* cannot transfer to destroyed coros, skip and look for next */
		1657	if (expect_false (next->flags & CF_DESTROYED))
		1658	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1659	else
		1660	{
		1661	next->flags &= ~CF_READY;
		1662	--coro_nready;
		1663
		1664	prepare_schedule_to (aTHX_ ta, next);
		1665	break;
		1666	}
		1667	}
		1668	else
		1669	{
		1670	/* nothing to schedule: call the idle handler */
		1671	if (SvROK (sv_idle)
		1672	&& SvOBJECT (SvRV (sv_idle)))
		1673	{
		1674	++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
		1675	api_ready (SvRV (sv_idle));
		1676	--coro_nready;
		1677	}
		1678	else
		1679	{
		1680	dSP;
		1681
		1682	ENTER;
		1683	SAVETMPS;
		1684
		1685	PUSHMARK (SP);
		1686	PUTBACK;
		1687	call_sv (sv_idle, G_VOID \| G_DISCARD);
		1688
		1689	FREETMPS;
		1690	LEAVE;
		1691	}
		1692	}
		1693	}
		1694	}
		1695
1605	INLINE void	1696	INLINE void
1606	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1697	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1607	{	1698	{
1608	api_ready (aTHX_ coro_current);	1699	api_ready (aTHX_ coro_current);
1609	prepare_schedule (aTHX_ ta);	1700	prepare_schedule (aTHX_ ta);
…		…
1628	{	1719	{
1629	struct coro_transfer_args ta;	1720	struct coro_transfer_args ta;
1630		1721
1631	prepare_schedule (aTHX_ &ta);	1722	prepare_schedule (aTHX_ &ta);
1632	TRANSFER (ta, 1);	1723	TRANSFER (ta, 1);
		1724	}
		1725
		1726	static void
		1727	api_schedule_to (pTHX_ SV *coro_sv)
		1728	{
		1729	struct coro_transfer_args ta;
		1730	struct coro *next = SvSTATE (coro_sv);
		1731
		1732	SvREFCNT_inc_NN (coro_sv);
		1733	prepare_schedule_to (aTHX_ &ta, next);
1633	}	1734	}
1634		1735
1635	static int	1736	static int
1636	api_cede (pTHX)	1737	api_cede (pTHX)
1637	{	1738	{
…		…
1666	static void	1767	static void
1667	api_trace (pTHX_ SV *coro_sv, int flags)	1768	api_trace (pTHX_ SV *coro_sv, int flags)
1668	{	1769	{
1669	struct coro *coro = SvSTATE (coro_sv);	1770	struct coro *coro = SvSTATE (coro_sv);
1670		1771
		1772	if (coro->flags & CF_RUNNING)
		1773	croak ("cannot enable tracing on a running coroutine, caught");
		1774
1671	if (flags & CC_TRACE)	1775	if (flags & CC_TRACE)
1672	{	1776	{
1673	if (!coro->cctx)	1777	if (!coro->cctx)
1674	coro->cctx = cctx_new_run ();	1778	coro->cctx = cctx_new_run ();
1675	else if (!(coro->cctx->flags & CC_TRACE))	1779	else if (!(coro->cctx->flags & CC_TRACE))
1676	croak ("cannot enable tracing on coroutine with custom stack,");	1780	croak ("cannot enable tracing on coroutine with custom stack, caught");
1677		1781
1678	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));	1782	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
1679	}	1783	}
1680	else if (coro->cctx && coro->cctx->flags & CC_TRACE)	1784	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1681	{	1785	{
…		…
1684	if (coro->flags & CF_RUNNING)	1788	if (coro->flags & CF_RUNNING)
1685	PL_runops = RUNOPS_DEFAULT;	1789	PL_runops = RUNOPS_DEFAULT;
1686	else	1790	else
1687	coro->slot->runops = RUNOPS_DEFAULT;	1791	coro->slot->runops = RUNOPS_DEFAULT;
1688	}	1792	}
		1793	}
		1794
		1795	static void
		1796	coro_call_on_destroy (pTHX_ struct coro *coro)
		1797	{
		1798	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1799	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1800
		1801	if (on_destroyp)
		1802	{
		1803	AV on_destroy = (AV )SvRV (*on_destroyp);
		1804
		1805	while (AvFILLp (on_destroy) >= 0)
		1806	{
		1807	dSP; /* don't disturb outer sp */
		1808	SV *cb = av_pop (on_destroy);
		1809
		1810	PUSHMARK (SP);
		1811
		1812	if (statusp)
		1813	{
		1814	int i;
		1815	AV status = (AV )SvRV (*statusp);
		1816	EXTEND (SP, AvFILLp (status) + 1);
		1817
		1818	for (i = 0; i <= AvFILLp (status); ++i)
		1819	PUSHs (AvARRAY (status)[i]);
		1820	}
		1821
		1822	PUTBACK;
		1823	call_sv (sv_2mortal (cb), G_VOID \| G_DISCARD);
		1824	}
		1825	}
		1826	}
		1827
		1828	static void
		1829	slf_init_terminate (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1830	{
		1831	int i;
		1832	HV hv = (HV )SvRV (coro_current);
		1833	AV *av = newAV ();
		1834
		1835	av_extend (av, items - 1);
		1836	for (i = 0; i < items; ++i)
		1837	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1838
		1839	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1840
		1841	av_push (av_destroy, (SV )newRV_inc ((SV )hv)); /* RVinc for perl */
		1842	api_ready (aTHX_ sv_manager);
		1843
		1844	frame->prepare = prepare_schedule;
		1845	frame->check = slf_check_repeat;
		1846	}
		1847
		1848	/*****************************************************************************/
		1849	/* async pool handler */
		1850
		1851	static int
		1852	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1853	{
		1854	HV hv = (HV )SvRV (coro_current);
		1855	struct coro coro = (struct coro )frame->data;
		1856
		1857	if (!coro->invoke_cb)
		1858	return 1; /* loop till we have invoke */
		1859	else
		1860	{
		1861	hv_store (hv, "desc", sizeof ("desc") - 1,
		1862	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1863
		1864	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1865
		1866	{
		1867	dSP;
		1868	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1869	PUTBACK;
		1870	}
		1871
		1872	SvREFCNT_dec (GvAV (PL_defgv));
		1873	GvAV (PL_defgv) = coro->invoke_av;
		1874	coro->invoke_av = 0;
		1875
		1876	return 0;
		1877	}
		1878	}
		1879
		1880	static void
		1881	slf_init_pool_handler (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1882	{
		1883	HV hv = (HV )SvRV (coro_current);
		1884	struct coro coro = SvSTATE_hv ((SV )hv);
		1885
		1886	if (expect_true (coro->saved_deffh))
		1887	{
		1888	/* subsequent iteration */
		1889	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1890	coro->saved_deffh = 0;
		1891
		1892	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1893	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1894	{
		1895	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1896	coro->invoke_av = newAV ();
		1897
		1898	frame->prepare = prepare_nop;
		1899	}
		1900	else
		1901	{
		1902	av_clear (GvAV (PL_defgv));
		1903	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1904
		1905	coro->prio = 0;
		1906
		1907	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1908	api_trace (aTHX_ coro_current, 0);
		1909
		1910	frame->prepare = prepare_schedule;
		1911	av_push (av_async_pool, SvREFCNT_inc (hv));
		1912	}
		1913	}
		1914	else
		1915	{
		1916	/* first iteration, simply fall through */
		1917	frame->prepare = prepare_nop;
		1918	}
		1919
		1920	frame->check = slf_check_pool_handler;
		1921	frame->data = (void *)coro;
		1922	}
		1923
		1924	/*****************************************************************************/
		1925	/* rouse callback */
		1926
		1927	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1928
		1929	static void
		1930	coro_rouse_callback (pTHX_ CV *cv)
		1931	{
		1932	dXSARGS;
		1933	SV data = (SV )GENSUB_ARG;
		1934
		1935	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1936	{
		1937	/* first call, set args */
		1938	AV *av = newAV ();
		1939	SV *coro = SvRV (data);
		1940
		1941	SvRV_set (data, (SV *)av);
		1942	api_ready (aTHX_ coro);
		1943	SvREFCNT_dec (coro);
		1944
		1945	/* better take a full copy of the arguments */
		1946	while (items--)
		1947	av_store (av, items, newSVsv (ST (items)));
		1948	}
		1949
		1950	XSRETURN_EMPTY;
		1951	}
		1952
		1953	static int
		1954	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1955	{
		1956	SV data = (SV )frame->data;
		1957
		1958	if (CORO_THROW)
		1959	return 0;
		1960
		1961	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1962	return 1;
		1963
		1964	/* now push all results on the stack */
		1965	{
		1966	dSP;
		1967	AV av = (AV )SvRV (data);
		1968	int i;
		1969
		1970	EXTEND (SP, AvFILLp (av) + 1);
		1971	for (i = 0; i <= AvFILLp (av); ++i)
		1972	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1973
		1974	/* we have stolen the elements, so ste length to zero and free */
		1975	AvFILLp (av) = -1;
		1976	av_undef (av);
		1977
		1978	PUTBACK;
		1979	}
		1980
		1981	return 0;
		1982	}
		1983
		1984	static void
		1985	slf_init_rouse_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1986	{
		1987	SV *cb;
		1988
		1989	if (items)
		1990	cb = arg [0];
		1991	else
		1992	{
		1993	struct coro *coro = SvSTATE_current;
		1994
		1995	if (!coro->rouse_cb)
		1996	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1997
		1998	cb = sv_2mortal (coro->rouse_cb);
		1999	coro->rouse_cb = 0;
		2000	}
		2001
		2002	if (!SvROK (cb)
		2003	\|\| SvTYPE (SvRV (cb)) != SVt_PVCV
		2004	\|\| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		2005	croak ("Coro::rouse_wait called with illegal callback argument,");
		2006
		2007	{
		2008	CV cv = (CV )SvRV (cb); /* for GENSUB_ARG */
		2009	SV data = (SV )GENSUB_ARG;
		2010
		2011	frame->data = (void *)data;
		2012	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2013	frame->check = slf_check_rouse_wait;
		2014	}
		2015	}
		2016
		2017	static SV *
		2018	coro_new_rouse_cb (pTHX)
		2019	{
		2020	HV hv = (HV )SvRV (coro_current);
		2021	struct coro *coro = SvSTATE_hv (hv);
		2022	SV data = newRV_inc ((SV )hv);
		2023	SV cb = gensub (aTHX_ coro_rouse_callback, (void )data);
		2024
		2025	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2026	SvREFCNT_dec (data); /* magicext increases the refcount */
		2027
		2028	SvREFCNT_dec (coro->rouse_cb);
		2029	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2030
		2031	return cb;
1689	}	2032	}
1690		2033
1691	/*****************************************************************************/	2034	/*****************************************************************************/
1692	/* schedule-like-function opcode (SLF) */	2035	/* schedule-like-function opcode (SLF) */
1693		2036
…		…
1717		2060
1718	RETURNOP (slf_restore.op_first);	2061	RETURNOP (slf_restore.op_first);
1719	}	2062	}
1720		2063
1721	static void	2064	static void
1722	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723	{
1724	prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725	}
1726
1727	static void
1728	slf_init_set_stacklevel (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1729	{
1730	assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732	frame->prepare = slf_prepare_set_stacklevel;
1733	frame->check = slf_check_nop;
1734	frame->data = (void *)SvIV (arg [0]);
1735	}
1736
1737	static void
1738	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)	2065	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739	{	2066	{
1740	SV arg = (SV )slf_frame.data;	2067	SV arg = (SV )slf_frame.data;
1741		2068
1742	prepare_transfer (aTHX_ ta, arg [0], arg [1]);	2069	prepare_transfer (aTHX_ ta, arg [0], arg [1]);
…		…
1759	frame->prepare = prepare_schedule;	2086	frame->prepare = prepare_schedule;
1760	frame->check = slf_check_nop;	2087	frame->check = slf_check_nop;
1761	}	2088	}
1762		2089
1763	static void	2090	static void
		2091	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2092	{
		2093	struct coro next = (struct coro )slf_frame.data;
		2094
		2095	SvREFCNT_inc_NN (next->hv);
		2096	prepare_schedule_to (aTHX_ ta, next);
		2097	}
		2098
		2099	static void
		2100	slf_init_schedule_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2101	{
		2102	if (!items)
		2103	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2104
		2105	frame->data = (void *)SvSTATE (arg [0]);
		2106	frame->prepare = slf_prepare_schedule_to;
		2107	frame->check = slf_check_nop;
		2108	}
		2109
		2110	static void
		2111	slf_init_cede_to (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2112	{
		2113	api_ready (aTHX_ SvRV (coro_current));
		2114
		2115	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
		2116	}
		2117
		2118	static void
1764	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2119	slf_init_cede (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1765	{	2120	{
1766	frame->prepare = prepare_cede;	2121	frame->prepare = prepare_cede;
1767	frame->check = slf_check_nop;	2122	frame->check = slf_check_nop;
1768	}	2123	}
…		…
1771	slf_init_cede_notself (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2126	slf_init_cede_notself (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1772	{	2127	{
1773	frame->prepare = prepare_cede_notself;	2128	frame->prepare = prepare_cede_notself;
1774	frame->check = slf_check_nop;	2129	frame->check = slf_check_nop;
1775	}	2130	}
1776
1777	/* we hijack an hopefully unused CV flag for our purposes */
1778	#define CVf_SLF 0x4000
1779		2131
1780	/*	2132	/*
1781	* these not obviously related functions are all rolled into one	2133	* these not obviously related functions are all rolled into one
1782	* function to increase chances that they all will call transfer with the same	2134	* function to increase chances that they all will call transfer with the same
1783	* stack offset	2135	* stack offset
…		…
1839	}	2191	}
1840	while (slf_frame.check (aTHX_ &slf_frame));	2192	while (slf_frame.check (aTHX_ &slf_frame));
1841		2193
1842	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2194	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1843		2195
1844	/* return value handling - mostly like entersub */
1845	{
1846	dSP;
1847	SV **bot = PL_stack_base + checkmark;
1848	int gimme = GIMME_V;
1849
1850	/* make sure we put something on the stack in scalar context */
1851	if (gimme == G_SCALAR)
1852	{
1853	if (sp == bot)
1854	XPUSHs (&PL_sv_undef);
1855
1856	SP = bot + 1;
1857	}
1858
1859	PUTBACK;
1860	}
1861
1862	/* exception handling */	2196	/* exception handling */
1863	if (expect_false (coro_throw))	2197	if (expect_false (CORO_THROW))
1864	{	2198	{
1865	SV *exception = sv_2mortal (coro_throw);	2199	SV *exception = sv_2mortal (CORO_THROW);
1866		2200
1867	coro_throw = 0;	2201	CORO_THROW = 0;
1868	sv_setsv (ERRSV, exception);	2202	sv_setsv (ERRSV, exception);
1869	croak (0);	2203	croak (0);
		2204	}
		2205
		2206	/* return value handling - mostly like entersub */
		2207	/* make sure we put something on the stack in scalar context */
		2208	if (GIMME_V == G_SCALAR)
		2209	{
		2210	dSP;
		2211	SV **bot = PL_stack_base + checkmark;
		2212
		2213	if (sp == bot) /* too few, push undef */
		2214	bot [1] = &PL_sv_undef;
		2215	else if (sp != bot + 1) /* too many, take last one */
		2216	bot [1] = *sp;
		2217
		2218	SP = bot + 1;
		2219
		2220	PUTBACK;
1870	}	2221	}
1871		2222
1872	return NORMAL;	2223	return NORMAL;
1873	}	2224	}
1874		2225
…		…
1915	}	2266	}
1916	else	2267	else
1917	slf_argc = 0;	2268	slf_argc = 0;
1918		2269
1919	PL_op->op_ppaddr = pp_slf;	2270	PL_op->op_ppaddr = pp_slf;
1920	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2271	/PL_op->op_type = OP_CUSTOM; / we do behave like entersub still */
1921		2272
1922	PL_op = (OP *)&slf_restore;	2273	PL_op = (OP *)&slf_restore;
1923	}	2274	}
1924		2275
1925	/*****************************************************************************/	2276	/*****************************************************************************/
…		…
1996	PerlIOBuf_get_cnt,	2347	PerlIOBuf_get_cnt,
1997	PerlIOBuf_set_ptrcnt,	2348	PerlIOBuf_set_ptrcnt,
1998	};	2349	};
1999		2350
2000	/*****************************************************************************/	2351	/*****************************************************************************/
		2352	/* Coro::Semaphore & Coro::Signal */
		2353
		2354	static SV *
		2355	coro_waitarray_new (pTHX_ int count)
		2356	{
		2357	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2358	AV *av = newAV ();
		2359	SV **ary;
		2360
		2361	/* unfortunately, building manually saves memory */
		2362	Newx (ary, 2, SV *);
		2363	AvALLOC (av) = ary;
		2364	/AvARRAY (av) = ary;/
		2365	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2366	AvMAX (av) = 1;
		2367	AvFILLp (av) = 0;
		2368	ary [0] = newSViv (count);
		2369
		2370	return newRV_noinc ((SV *)av);
		2371	}
		2372
2001	/* Coro::Semaphore */	2373	/* semaphore */
2002		2374
2003	static void	2375	static void
2004	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2376	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005	{	2377	{
2006	SV *count_sv = AvARRAY (av)[0];	2378	SV *count_sv = AvARRAY (av)[0];
…		…
2018	AvARRAY (av)[0] = AvARRAY (av)[1];	2390	AvARRAY (av)[0] = AvARRAY (av)[1];
2019	AvARRAY (av)[1] = count_sv;	2391	AvARRAY (av)[1] = count_sv;
2020	cb = av_shift (av);	2392	cb = av_shift (av);
2021		2393
2022	if (SvOBJECT (cb))	2394	if (SvOBJECT (cb))
		2395	{
2023	api_ready (aTHX_ cb);	2396	api_ready (aTHX_ cb);
2024	else	2397	--count;
2025	croak ("callbacks not yet supported");	2398	}
		2399	else if (SvTYPE (cb) == SVt_PVCV)
		2400	{
		2401	dSP;
		2402	PUSHMARK (SP);
		2403	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2404	PUTBACK;
		2405	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2406	}
2026		2407
2027	SvREFCNT_dec (cb);	2408	SvREFCNT_dec (cb);
2028
2029	--count;
2030	}	2409	}
2031	}	2410	}
2032		2411
2033	static void	2412	static void
2034	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2413	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2036	/* call $sem->adjust (0) to possibly wake up some other waiters */	2415	/* call $sem->adjust (0) to possibly wake up some other waiters */
2037	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2416	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2038	}	2417	}
2039		2418
2040	static int	2419	static int
2041	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2420	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042	{	2421	{
2043	AV av = (AV )frame->data;	2422	AV av = (AV )frame->data;
2044	SV *count_sv = AvARRAY (av)[0];	2423	SV *count_sv = AvARRAY (av)[0];
2045		2424
		2425	/* if we are about to throw, don't actually acquire the lock, just throw */
		2426	if (CORO_THROW)
		2427	return 0;
2046	if (SvIVX (count_sv) > 0)	2428	else if (SvIVX (count_sv) > 0)
2047	{	2429	{
2048	SvSTATE_current->on_destroy = 0;	2430	SvSTATE_current->on_destroy = 0;
		2431
		2432	if (acquire)
2049	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2433	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2434	else
		2435	coro_semaphore_adjust (aTHX_ av, 0);
		2436
2050	return 0;	2437	return 0;
2051	}	2438	}
2052	else	2439	else
2053	{	2440	{
2054	int i;	2441	int i;
…		…
2063	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2450	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2064	return 1;	2451	return 1;
2065	}	2452	}
2066	}	2453	}
2067		2454
2068	static void	2455	static int
		2456	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2457	{
		2458	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2459	}
		2460
		2461	static int
		2462	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2463	{
		2464	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2465	}
		2466
		2467	static void
2069	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2468	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2070	{	2469	{
2071	AV av = (AV )SvRV (arg [0]);	2470	AV av = (AV )SvRV (arg [0]);
2072		2471
2073	if (SvIVX (AvARRAY (av)[0]) > 0)	2472	if (SvIVX (AvARRAY (av)[0]) > 0)
2074	{	2473	{
2075	frame->data = (void *)av;	2474	frame->data = (void *)av;
2076	frame->prepare = prepare_nop;	2475	frame->prepare = prepare_nop;
2077	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078	}	2476	}
2079	else	2477	else
2080	{	2478	{
2081	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2479	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082		2480
2083	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2481	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2084	frame->prepare = prepare_schedule;	2482	frame->prepare = prepare_schedule;
2085		2483
2086	/* to avoid race conditions when a woken-up coro gets terminated */	2484	/* to avoid race conditions when a woken-up coro gets terminated */
2087	/* we arrange for a temporary on_destroy that calls adjust (0) */	2485	/* we arrange for a temporary on_destroy that calls adjust (0) */
2088	assert (!SvSTATE_current->on_destroy);//D
2089	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2486	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090	}	2487	}
		2488	}
2091		2489
		2490	static void
		2491	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2492	{
		2493	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2092	frame->check = slf_check_semaphore_down;	2494	frame->check = slf_check_semaphore_down;
2093
2094	}	2495	}
2095		2496
2096	/*****************************************************************************/	2497	static void
2097	/* gensub: simple closure generation utility */	2498	slf_init_semaphore_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2098
2099	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2100
2101	/* create a closure from XS, returns a code reference */
2102	/* the arg can be accessed via GENSUB_ARG from the callback */
2103	/* the callback must use dXSARGS/XSRETURN */
2104	static SV *
2105	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
2106	{	2499	{
2107	CV cv = (CV )newSV (0);	2500	if (items >= 2)
		2501	{
		2502	/* callback form */
		2503	AV av = (AV )SvRV (arg [0]);
		2504	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2108		2505
2109	sv_upgrade ((SV *)cv, SVt_PVCV);	2506	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110		2507
2111	CvANON_on (cv);	2508	if (SvIVX (AvARRAY (av)[0]) > 0)
2112	CvISXSUB_on (cv);	2509	coro_semaphore_adjust (aTHX_ av, 0);
2113	CvXSUB (cv) = xsub;
2114	GENSUB_ARG = arg;
2115		2510
2116	return newRV_noinc ((SV *)cv);	2511	frame->prepare = prepare_nop;
		2512	frame->check = slf_check_nop;
		2513	}
		2514	else
		2515	{
		2516	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2517	frame->check = slf_check_semaphore_wait;
		2518	}
		2519	}
		2520
		2521	/* signal */
		2522
		2523	static void
		2524	coro_signal_wake (pTHX_ AV *av, int count)
		2525	{
		2526	SvIVX (AvARRAY (av)[0]) = 0;
		2527
		2528	/* now signal count waiters */
		2529	while (count > 0 && AvFILLp (av) > 0)
		2530	{
		2531	SV *cb;
		2532
		2533	/* swap first two elements so we can shift a waiter */
		2534	cb = AvARRAY (av)[0];
		2535	AvARRAY (av)[0] = AvARRAY (av)[1];
		2536	AvARRAY (av)[1] = cb;
		2537
		2538	cb = av_shift (av);
		2539
		2540	api_ready (aTHX_ cb);
		2541	sv_setiv (cb, 0); /* signal waiter */
		2542	SvREFCNT_dec (cb);
		2543
		2544	--count;
		2545	}
		2546	}
		2547
		2548	static int
		2549	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2550	{
		2551	/* if we are about to throw, also stop waiting */
		2552	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2553	}
		2554
		2555	static void
		2556	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2557	{
		2558	AV av = (AV )SvRV (arg [0]);
		2559
		2560	if (SvIVX (AvARRAY (av)[0]))
		2561	{
		2562	SvIVX (AvARRAY (av)[0]) = 0;
		2563	frame->prepare = prepare_nop;
		2564	frame->check = slf_check_nop;
		2565	}
		2566	else
		2567	{
		2568	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */
		2569
		2570	av_push (av, waiter);
		2571
		2572	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
		2573	frame->prepare = prepare_schedule;
		2574	frame->check = slf_check_signal_wait;
		2575	}
2117	}	2576	}
2118		2577
2119	/*****************************************************************************/	2578	/*****************************************************************************/
2120	/* Coro::AIO */	2579	/* Coro::AIO */
2121		2580
…		…
2136	dXSARGS;	2595	dXSARGS;
2137	AV state = (AV )GENSUB_ARG;	2596	AV state = (AV )GENSUB_ARG;
2138	SV *coro = av_pop (state);	2597	SV *coro = av_pop (state);
2139	SV *data_sv = newSV (sizeof (struct io_state));	2598	SV *data_sv = newSV (sizeof (struct io_state));
2140		2599
2141	av_extend (state, items);	2600	av_extend (state, items - 1);
2142		2601
2143	sv_upgrade (data_sv, SVt_PV);	2602	sv_upgrade (data_sv, SVt_PV);
2144	SvCUR_set (data_sv, sizeof (struct io_state));	2603	SvCUR_set (data_sv, sizeof (struct io_state));
2145	SvPOK_only (data_sv);	2604	SvPOK_only (data_sv);
2146		2605
…		…
2171	static int	2630	static int
2172	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2631	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173	{	2632	{
2174	AV state = (AV )frame->data;	2633	AV state = (AV )frame->data;
2175		2634
		2635	/* if we are about to throw, return early */
		2636	/* this does not cancel the aio request, but at least */
		2637	/* it quickly returns */
		2638	if (CORO_THROW)
		2639	return 0;
		2640
2176	/* one element that is an RV? repeat! */	2641	/* one element that is an RV? repeat! */
2177	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2642	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178	return 1;	2643	return 1;
2179		2644
2180	/* restore status */	2645	/* restore status */
…		…
2275	XSRETURN_EMPTY;	2740	XSRETURN_EMPTY;
2276	}	2741	}
2277		2742
2278	/*****************************************************************************/	2743	/*****************************************************************************/
2279		2744
		2745	#if CORO_CLONE
		2746	# include "clone.c"
		2747	#endif
		2748
2280	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2749	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2281		2750
2282	PROTOTYPES: DISABLE	2751	PROTOTYPES: DISABLE
2283		2752
2284	BOOT:	2753	BOOT:
…		…
2288	coro_thx = PERL_GET_CONTEXT;	2757	coro_thx = PERL_GET_CONTEXT;
2289	# endif	2758	# endif
2290	#endif	2759	#endif
2291	BOOT_PAGESIZE;	2760	BOOT_PAGESIZE;
2292		2761
		2762	cctx_current = cctx_new_empty ();
		2763
2293	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	2764	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
2294	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	2765	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
2295		2766
2296	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2767	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2297	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2768	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2316		2787
2317	{	2788	{
2318	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2789	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2319		2790
2320	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2791	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2321	hv_store_ent (PL_custom_op_names, slf,	2792	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2322	newSVpv ("coro_slf", 0), 0);
2323		2793
2324	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2794	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2325	hv_store_ent (PL_custom_op_descs, slf,	2795	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2326	newSVpv ("coro schedule like function", 0), 0);
2327	}	2796	}
2328		2797
2329	coroapi.ver = CORO_API_VERSION;	2798	coroapi.ver = CORO_API_VERSION;
2330	coroapi.rev = CORO_API_REVISION;	2799	coroapi.rev = CORO_API_REVISION;
2331		2800
…		…
2350	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2819	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351	}	2820	}
2352		2821
2353	SV *	2822	SV *
2354	new (char *klass, ...)	2823	new (char *klass, ...)
		2824	ALIAS:
		2825	Coro::new = 1
2355	CODE:	2826	CODE:
2356	{	2827	{
2357	struct coro *coro;	2828	struct coro *coro;
2358	MAGIC *mg;	2829	MAGIC *mg;
2359	HV *hv;	2830	HV *hv;
		2831	CV *cb;
2360	int i;	2832	int i;
		2833
		2834	if (items > 1)
		2835	{
		2836	cb = coro_sv_2cv (aTHX_ ST (1));
		2837
		2838	if (!ix)
		2839	{
		2840	if (CvISXSUB (cb))
		2841	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2842
		2843	if (!CvROOT (cb))
		2844	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2845	}
		2846	}
2361		2847
2362	Newz (0, coro, 1, struct coro);	2848	Newz (0, coro, 1, struct coro);
2363	coro->args = newAV ();	2849	coro->args = newAV ();
2364	coro->flags = CF_NEW;	2850	coro->flags = CF_NEW;
2365		2851
…		…
2370	coro->hv = hv = newHV ();	2856	coro->hv = hv = newHV ();
2371	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2857	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2372	mg->mg_flags \|= MGf_DUP;	2858	mg->mg_flags \|= MGf_DUP;
2373	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2859	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374		2860
		2861	if (items > 1)
		2862	{
2375	av_extend (coro->args, items - 1);	2863	av_extend (coro->args, items - 1 + ix - 1);
		2864
		2865	if (ix)
		2866	{
		2867	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2868	cb = cv_coro_run;
		2869	}
		2870
		2871	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2872
2376	for (i = 1; i < items; i++)	2873	for (i = 2; i < items; i++)
2377	av_push (coro->args, newSVsv (ST (i)));	2874	av_push (coro->args, newSVsv (ST (i)));
		2875	}
2378	}	2876	}
2379	OUTPUT:	2877	OUTPUT:
2380	RETVAL	2878	RETVAL
2381
2382	void
2383	_set_stacklevel (...)
2384	CODE:
2385	CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386		2879
2387	void	2880	void
2388	transfer (...)	2881	transfer (...)
2389	PROTOTYPE: $$	2882	PROTOTYPE: $$
2390	CODE:	2883	CODE:
…		…
2400	void	2893	void
2401	_exit (int code)	2894	_exit (int code)
2402	PROTOTYPE: $	2895	PROTOTYPE: $
2403	CODE:	2896	CODE:
2404	_exit (code);	2897	_exit (code);
		2898
		2899	SV *
		2900	clone (Coro::State coro)
		2901	CODE:
		2902	{
		2903	#if CORO_CLONE
		2904	struct coro *ncoro = coro_clone (coro);
		2905	MAGIC *mg;
		2906	/* TODO: too much duplication */
		2907	ncoro->hv = newHV ();
		2908	mg = sv_magicext ((SV )ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )ncoro, 0);
		2909	mg->mg_flags \|= MGf_DUP;
		2910	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2911	#else
		2912	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2913	#endif
		2914	}
		2915	OUTPUT:
		2916	RETVAL
2405		2917
2406	int	2918	int
2407	cctx_stacksize (int new_stacksize = 0)	2919	cctx_stacksize (int new_stacksize = 0)
2408	PROTOTYPE: ;$	2920	PROTOTYPE: ;$
2409	CODE:	2921	CODE:
…		…
2516	throw (Coro::State self, SV *throw = &PL_sv_undef)	3028	throw (Coro::State self, SV *throw = &PL_sv_undef)
2517	PROTOTYPE: $;$	3029	PROTOTYPE: $;$
2518	CODE:	3030	CODE:
2519	{	3031	{
2520	struct coro *current = SvSTATE_current;	3032	struct coro *current = SvSTATE_current;
2521	SV **throwp = self == current ? &coro_throw : &self->throw;	3033	SV **throwp = self == current ? &CORO_THROW : &self->except;
2522	SvREFCNT_dec (*throwp);	3034	SvREFCNT_dec (*throwp);
2523	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3035	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2524	}	3036	}
2525		3037
2526	void	3038	void
…		…
2530		3042
2531	SV *	3043	SV *
2532	has_cctx (Coro::State coro)	3044	has_cctx (Coro::State coro)
2533	PROTOTYPE: $	3045	PROTOTYPE: $
2534	CODE:	3046	CODE:
2535	RETVAL = boolSV (!!coro->cctx);	3047	/* maybe manage the running flag differently */
		3048	RETVAL = boolSV (!!coro->cctx \|\| (coro->flags & CF_RUNNING));
2536	OUTPUT:	3049	OUTPUT:
2537	RETVAL	3050	RETVAL
2538		3051
2539	int	3052	int
2540	is_traced (Coro::State coro)	3053	is_traced (Coro::State coro)
…		…
2560		3073
2561	void	3074	void
2562	force_cctx ()	3075	force_cctx ()
2563	PROTOTYPE:	3076	PROTOTYPE:
2564	CODE:	3077	CODE:
2565	SvSTATE_current->cctx->idle_sp = 0;	3078	cctx_current->idle_sp = 0;
2566		3079
2567	void	3080	void
2568	swap_defsv (Coro::State self)	3081	swap_defsv (Coro::State self)
2569	PROTOTYPE: $	3082	PROTOTYPE: $
2570	ALIAS:	3083	ALIAS:
…		…
2585		3098
2586	BOOT:	3099	BOOT:
2587	{	3100	{
2588	int i;	3101	int i;
2589		3102
2590	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3103	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3104	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593		3105	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3106	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2594	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3107	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2595	SvREADONLY_on (coro_current);	3108	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3109	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3110	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3111	sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
		3112
		3113	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3114	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3115	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3116	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2596		3117
2597	coro_stash = gv_stashpv ("Coro", TRUE);	3118	coro_stash = gv_stashpv ("Coro", TRUE);
2598		3119
2599	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3120	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2600	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3121	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2608		3129
2609	{	3130	{
2610	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3131	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2611		3132
2612	coroapi.schedule = api_schedule;	3133	coroapi.schedule = api_schedule;
		3134	coroapi.schedule_to = api_schedule_to;
2613	coroapi.cede = api_cede;	3135	coroapi.cede = api_cede;
2614	coroapi.cede_notself = api_cede_notself;	3136	coroapi.cede_notself = api_cede_notself;
2615	coroapi.ready = api_ready;	3137	coroapi.ready = api_ready;
2616	coroapi.is_ready = api_is_ready;	3138	coroapi.is_ready = api_is_ready;
2617	coroapi.nready = coro_nready;	3139	coroapi.nready = coro_nready;
2618	coroapi.current = coro_current;	3140	coroapi.current = coro_current;
2619		3141
2620	GCoroAPI = &coroapi;	3142	/GCoroAPI = &coroapi;/
2621	sv_setiv (sv, (IV)&coroapi);	3143	sv_setiv (sv, (IV)&coroapi);
2622	SvREADONLY_on (sv);	3144	SvREADONLY_on (sv);
2623	}	3145	}
2624	}	3146	}
		3147
		3148	void
		3149	terminate (...)
		3150	CODE:
		3151	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2625		3152
2626	void	3153	void
2627	schedule (...)	3154	schedule (...)
2628	CODE:	3155	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3156	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2630		3157
2631	void	3158	void
		3159	schedule_to (...)
		3160	CODE:
		3161	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3162
		3163	void
		3164	cede_to (...)
		3165	CODE:
		3166	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3167
		3168	void
2632	cede (...)	3169	cede (...)
2633	CODE:	3170	CODE:
2634	CORO_EXECUTE_SLF_XS (slf_init_cede);	3171	CORO_EXECUTE_SLF_XS (slf_init_cede);
2635		3172
2636	void	3173	void
2637	cede_notself (...)	3174	cede_notself (...)
2638	CODE:	3175	CODE:
2639	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3176	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3177
		3178	void
		3179	_cancel (Coro::State self)
		3180	CODE:
		3181	coro_state_destroy (aTHX_ self);
		3182	coro_call_on_destroy (aTHX_ self);
2640		3183
2641	void	3184	void
2642	_set_current (SV *current)	3185	_set_current (SV *current)
2643	PROTOTYPE: $	3186	PROTOTYPE: $
2644	CODE:	3187	CODE:
…		…
2689	CODE:	3232	CODE:
2690	RETVAL = coro_nready;	3233	RETVAL = coro_nready;
2691	OUTPUT:	3234	OUTPUT:
2692	RETVAL	3235	RETVAL
2693		3236
2694	# for async_pool speedup
2695	void	3237	void
2696	_pool_1 (SV *cb)	3238	_pool_handler (...)
2697	CODE:	3239	CODE:
2698	{	3240	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2699	HV hv = (HV )SvRV (coro_current);
2700	struct coro coro = SvSTATE_hv ((SV )hv);
2701	AV *defav = GvAV (PL_defgv);
2702	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2703	AV *invoke_av;
2704	int i, len;
2705		3241
2706	if (!invoke)	3242	void
		3243	async_pool (SV *cv, ...)
		3244	PROTOTYPE: &@
		3245	PPCODE:
		3246	{
		3247	HV hv = (HV )av_pop (av_async_pool);
		3248	AV *av = newAV ();
		3249	SV *cb = ST (0);
		3250	int i;
		3251
		3252	av_extend (av, items - 2);
		3253	for (i = 1; i < items; ++i)
		3254	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3255
		3256	if ((SV *)hv == &PL_sv_undef)
2707	{	3257	{
2708	SV *old = PL_diehook;	3258	PUSHMARK (SP);
2709	PL_diehook = 0;	3259	EXTEND (SP, 2);
2710	SvREFCNT_dec (old);	3260	PUSHs (sv_Coro);
2711	croak ("\3async_pool terminate\2\n");	3261	PUSHs ((SV *)cv_pool_handler);
		3262	PUTBACK;
		3263	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3264	SPAGAIN;
		3265
		3266	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2712	}	3267	}
2713		3268
2714	SvREFCNT_dec (coro->saved_deffh);
2715	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2716
2717	hv_store (hv, "desc", sizeof ("desc") - 1,
2718	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2719
2720	invoke_av = (AV *)SvRV (invoke);
2721	len = av_len (invoke_av);
2722
2723	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2724
2725	if (len > 0)
2726	{	3269	{
2727	av_fill (defav, len - 1);	3270	struct coro *coro = SvSTATE_hv (hv);
2728	for (i = 0; i < len; ++i)	3271
2729	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3272	assert (!coro->invoke_cb);
		3273	assert (!coro->invoke_av);
		3274	coro->invoke_cb = SvREFCNT_inc (cb);
		3275	coro->invoke_av = av;
2730	}	3276	}
		3277
		3278	api_ready (aTHX_ (SV *)hv);
		3279
		3280	if (GIMME_V != G_VOID)
		3281	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3282	else
		3283	SvREFCNT_dec (hv);
2731	}	3284	}
		3285
		3286	SV *
		3287	rouse_cb ()
		3288	PROTOTYPE:
		3289	CODE:
		3290	RETVAL = coro_new_rouse_cb (aTHX);
		3291	OUTPUT:
		3292	RETVAL
2732		3293
2733	void	3294	void
2734	_pool_2 (SV *cb)	3295	rouse_wait (...)
		3296	PROTOTYPE: ;$
2735	CODE:	3297	PPCODE:
2736	{	3298	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2737	HV hv = (HV )SvRV (coro_current);
2738	struct coro coro = SvSTATE_hv ((SV )hv);
2739
2740	sv_setsv (cb, &PL_sv_undef);
2741
2742	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
2743	coro->saved_deffh = 0;
2744
2745	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2746	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2747	{
2748	SV *old = PL_diehook;
2749	PL_diehook = 0;
2750	SvREFCNT_dec (old);
2751	croak ("\3async_pool terminate\2\n");
2752	}
2753
2754	av_clear (GvAV (PL_defgv));
2755	hv_store (hv, "desc", sizeof ("desc") - 1,
2756	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2757
2758	coro->prio = 0;
2759
2760	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2761	api_trace (aTHX_ coro_current, 0);
2762
2763	av_push (av_async_pool, newSVsv (coro_current));
2764	}
2765		3299
2766		3300
2767	MODULE = Coro::State PACKAGE = PerlIO::cede	3301	MODULE = Coro::State PACKAGE = PerlIO::cede
2768		3302
2769	BOOT:	3303	BOOT:
…		…
2771		3305
2772		3306
2773	MODULE = Coro::State PACKAGE = Coro::Semaphore	3307	MODULE = Coro::State PACKAGE = Coro::Semaphore
2774		3308
2775	SV *	3309	SV *
2776	new (SV klass, SV count_ = 0)	3310	new (SV klass, SV count = 0)
2777	CODE:	3311	CODE:
2778	{	3312	RETVAL = sv_bless (
2779	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3313	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2780	AV *av = newAV ();	3314	GvSTASH (CvGV (cv))
2781	av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1));	3315	);
2782	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));	3316	OUTPUT:
2783	}	3317	RETVAL
		3318
		3319	# helper for Coro::Channel
		3320	SV *
		3321	_alloc (int count)
		3322	CODE:
		3323	RETVAL = coro_waitarray_new (aTHX_ count);
2784	OUTPUT:	3324	OUTPUT:
2785	RETVAL	3325	RETVAL
2786		3326
2787	SV *	3327	SV *
2788	count (SV *self)	3328	count (SV *self)
…		…
2797	adjust = 1	3337	adjust = 1
2798	CODE:	3338	CODE:
2799	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3339	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2800		3340
2801	void	3341	void
2802	down (SV *self)	3342	down (...)
2803	CODE:	3343	CODE:
2804	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3344	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3345
		3346	void
		3347	wait (...)
		3348	CODE:
		3349	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2805		3350
2806	void	3351	void
2807	try (SV *self)	3352	try (SV *self)
2808	PPCODE:	3353	PPCODE:
2809	{	3354	{
…		…
2821	XSRETURN_NO;	3366	XSRETURN_NO;
2822	}	3367	}
2823		3368
2824	void	3369	void
2825	waiters (SV *self)	3370	waiters (SV *self)
2826	CODE:	3371	PPCODE:
2827	{	3372	{
2828	AV av = (AV )SvRV (self);	3373	AV av = (AV )SvRV (self);
		3374	int wcount = AvFILLp (av) + 1 - 1;
2829		3375
2830	if (GIMME_V == G_SCALAR)	3376	if (GIMME_V == G_SCALAR)
2831	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3377	XPUSHs (sv_2mortal (newSViv (wcount)));
2832	else	3378	else
2833	{	3379	{
2834	int i;	3380	int i;
2835	EXTEND (SP, AvFILLp (av) + 1 - 1);	3381	EXTEND (SP, wcount);
2836	for (i = 1; i <= AvFILLp (av); ++i)	3382	for (i = 1; i <= wcount; ++i)
2837	PUSHs (newSVsv (AvARRAY (av)[i]));	3383	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2838	}	3384	}
2839	}	3385	}
		3386
		3387	MODULE = Coro::State PACKAGE = Coro::Signal
		3388
		3389	SV *
		3390	new (SV *klass)
		3391	CODE:
		3392	RETVAL = sv_bless (
		3393	coro_waitarray_new (aTHX_ 0),
		3394	GvSTASH (CvGV (cv))
		3395	);
		3396	OUTPUT:
		3397	RETVAL
		3398
		3399	void
		3400	wait (...)
		3401	CODE:
		3402	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3403
		3404	void
		3405	broadcast (SV *self)
		3406	CODE:
		3407	{
		3408	AV av = (AV )SvRV (self);
		3409	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3410	}
		3411
		3412	void
		3413	send (SV *self)
		3414	CODE:
		3415	{
		3416	AV av = (AV )SvRV (self);
		3417
		3418	if (AvFILLp (av))
		3419	coro_signal_wake (aTHX_ av, 1);
		3420	else
		3421	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3422	}
		3423
		3424	IV
		3425	awaited (SV *self)
		3426	CODE:
		3427	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3428	OUTPUT:
		3429	RETVAL
2840		3430
2841		3431
2842	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3432	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2843		3433
2844	BOOT:	3434	BOOT:
…		…
2859	sv_setsv (sv_activity, &PL_sv_undef);	3449	sv_setsv (sv_activity, &PL_sv_undef);
2860	if (coro_nready >= incede)	3450	if (coro_nready >= incede)
2861	{	3451	{
2862	PUSHMARK (SP);	3452	PUSHMARK (SP);
2863	PUTBACK;	3453	PUTBACK;
2864	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);	3454	call_pv ("Coro::AnyEvent::_activity", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
2865	SPAGAIN;
2866	}	3455	}
2867		3456
2868	--incede;	3457	--incede;
2869	}	3458	}
2870		3459
…		…
2873		3462
2874	void	3463	void
2875	_register (char target, char proto, SV *req)	3464	_register (char target, char proto, SV *req)
2876	CODE:	3465	CODE:
2877	{	3466	{
2878	HV *st;	3467	CV *req_cv = coro_sv_2cv (aTHX_ req);
2879	GV *gvp;
2880	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2881	/* newXSproto doesn't return the CV on 5.8 */	3468	/* newXSproto doesn't return the CV on 5.8 */
2882	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3469	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2883	sv_setpv ((SV *)slf_cv, proto);	3470	sv_setpv ((SV *)slf_cv, proto);
2884	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3471	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2885	}	3472	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs. Revision 1.326 by root, Mon Nov 24 04:56:38 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.288 by root, Mon Nov 17 07:14:50 2008 UTC vs.
Revision 1.326 by root, Mon Nov 24 04:56:38 2008 UTC