ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.291 by root, Tue Nov 18 05:55:04 2008 UTC vs.
Revision 1.322 by root, Sat Nov 22 05:13:34 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
…		…
164	static AV *main_mainstack; /* used to differentiate between $main and others */	173	static AV *main_mainstack; /* used to differentiate between $main and others */
165	static JMPENV *main_top_env;	174	static JMPENV *main_top_env;
166	static HV *coro_state_stash, *coro_stash;	175	static HV *coro_state_stash, *coro_stash;
167	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 */
168		177
		178	static AV *av_destroy; /* destruction queue */
		179	static SV *sv_manager; /* the manager coro */
		180
169	static GV *irsgv; /* $/ */	181	static GV *irsgv; /* $/ */
170	static GV *stdoutgv; /* *STDOUT */	182	static GV *stdoutgv; /* *STDOUT */
171	static SV *rv_diehook;	183	static SV *rv_diehook;
172	static SV *rv_warnhook;	184	static SV *rv_warnhook;
173	static HV *hv_sig; /* %SIG */	185	static HV *hv_sig; /* %SIG */
174		186
175	/* async_pool helper stuff */	187	/* async_pool helper stuff */
176	static SV *sv_pool_rss;	188	static SV *sv_pool_rss;
177	static SV *sv_pool_size;	189	static SV *sv_pool_size;
		190	static SV *sv_async_pool_idle; /* description string */
178	static AV *av_async_pool;	191	static AV *av_async_pool; /* idle pool */
		192	static SV *sv_Coro; /* class string */
		193	static CV *cv_pool_handler;
		194	static CV *cv_coro_state_new;
179		195
180	/* Coro::AnyEvent */	196	/* Coro::AnyEvent */
181	static SV *sv_activity;	197	static SV *sv_activity;
182		198
183	static struct coro_cctx *cctx_first;	199	static struct coro_cctx *cctx_first;
…		…
212	int valgrind_id;	228	int valgrind_id;
213	#endif	229	#endif
214	unsigned char flags;	230	unsigned char flags;
215	} coro_cctx;	231	} coro_cctx;
216		232
		233	coro_cctx *cctx_current; /* the currently running cctx */
		234
		235	/*****************************************************************************/
		236
217	enum {	237	enum {
218	CF_RUNNING = 0x0001, /* coroutine is running */	238	CF_RUNNING = 0x0001, /* coroutine is running */
219	CF_READY = 0x0002, /* coroutine is ready */	239	CF_READY = 0x0002, /* coroutine is ready */
220	CF_NEW = 0x0004, /* has never been switched to */	240	CF_NEW = 0x0004, /* has never been switched to */
221	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	241	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
…		…
243	/* state data */	263	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	264	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	265	AV *mainstack;
246	perl_slots *slot; /* basically the saved sp */	266	perl_slots *slot; /* basically the saved sp */
247		267
		268	CV *startcv; /* the CV to execute */
248	AV *args; /* data associated with this coroutine (initial args) */	269	AV *args; /* data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	270	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	271	int flags; /* CF_ flags */
251	HV *hv; /* the perl hash associated with this coro, if any */	272	HV *hv; /* the perl hash associated with this coro, if any */
252	void (*on_destroy)(pTHX_ struct coro *coro);	273	void (*on_destroy)(pTHX_ struct coro *coro);
253		274
254	/* statistics */	275	/* statistics */
255	int usecount; /* number of transfers to this coro */	276	int usecount; /* number of transfers to this coro */
256		277
257	/* coro process data */	278	/* coro process data */
258	int prio;	279	int prio;
259	SV *throw; /* exception to be thrown */	280	SV *except; /* exception to be thrown */
		281	SV *rouse_cb;
260		282
261	/* async_pool */	283	/* async_pool */
262	SV *saved_deffh;	284	SV *saved_deffh;
		285	SV *invoke_cb;
		286	AV *invoke_av;
263		287
264	/* linked list */	288	/* linked list */
265	struct coro *next, *prev;	289	struct coro *next, *prev;
266	};	290	};
267		291
…		…
270		294
271	/* the following variables are effectively part of the perl context */	295	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	296	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	297	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	298	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		299
277	/** Coro ********************************************************************/	300	/** Coro ********************************************************************/
278		301
279	#define PRIO_MAX 3	302	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	303	#define PRIO_HIGH 1
…		…
285		308
286	/* for Coro.pm */	309	/* for Coro.pm */
287	static SV *coro_current;	310	static SV *coro_current;
288	static SV *coro_readyhook;	311	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	312	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		313	static CV *cv_coro_run, *cv_coro_terminate;
290	static struct coro *coro_first;	314	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	315	#define coro_nready coroapi.nready
292		316
293	/** lowlevel stuff **********************************************************/	317	/** lowlevel stuff **********************************************************/
294		318
…		…
320	get_hv (name, create);	344	get_hv (name, create);
321	#endif	345	#endif
322	return get_hv (name, create);	346	return get_hv (name, create);
323	}	347	}
324		348
		349	/* may croak */
		350	INLINE CV *
		351	coro_sv_2cv (pTHX_ SV *sv)
		352	{
		353	HV *st;
		354	GV *gvp;
		355	return sv_2cv (sv, &st, &gvp, 0);
		356	}
		357
325	static AV *	358	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	359	coro_derive_padlist (pTHX_ CV *cv)
327	{	360	{
328	AV *padlist = CvPADLIST (cv);	361	AV *padlist = CvPADLIST (cv);
329	AV *newpadlist, *newpad;	362	AV *newpadlist, *newpad;
330		363
331	newpadlist = newAV ();	364	newpadlist = newAV ();
…		…
446	else	479	else
447	{	480	{
448	#if CORO_PREFER_PERL_FUNCTIONS	481	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	482	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	483	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	484	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	485	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	486	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	487	SvREFCNT_dec (cp);
455	#else	488	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	489	CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457	#endif	490	#endif
458	}	491	}
459	}	492	}
460		493
461	static void	494	static void
…		…
509		542
510	PUTBACK;	543	PUTBACK;
511	}	544	}
512		545
513	slf_frame = c->slf_frame;	546	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	547	CORO_THROW = c->except;
515	}	548	}
516		549
517	static void	550	static void
518	save_perl (pTHX_ Coro__State c)	551	save_perl (pTHX_ Coro__State c)
519	{	552	{
520	c->throw = coro_throw;	553	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	554	c->slf_frame = slf_frame;
522		555
523	{	556	{
524	dSP;	557	dSP;
525	I32 cxix = cxstack_ix;	558	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	633	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	634	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	635	* not usually need a lot of stackspace.
603	*/	636	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	637	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	638	# define coro_init_stacks(thx) init_stacks ()
606	#else	639	#else
607	static void	640	static void
608	coro_init_stacks (pTHX)	641	coro_init_stacks (pTHX)
609	{	642	{
610	PL_curstackinfo = new_stackinfo(32, 8);	643	PL_curstackinfo = new_stackinfo(32, 8);
…		…
673	#if !PERL_VERSION_ATLEAST (5,10,0)	706	#if !PERL_VERSION_ATLEAST (5,10,0)
674	Safefree (PL_retstack);	707	Safefree (PL_retstack);
675	#endif	708	#endif
676	}	709	}
677		710
		711	#define CORO_RSS \
		712	rss += sizeof (SYM (curstackinfo)); \
		713	rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
		714	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
		715	rss += SYM (tmps_max) * sizeof (SV *); \
		716	rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
		717	rss += SYM (scopestack_max) * sizeof (I32); \
		718	rss += SYM (savestack_max) * sizeof (ANY);
		719
678	static size_t	720	static size_t
679	coro_rss (pTHX_ struct coro *coro)	721	coro_rss (pTHX_ struct coro *coro)
680	{	722	{
681	size_t rss = sizeof (*coro);	723	size_t rss = sizeof (*coro);
682		724
683	if (coro->mainstack)	725	if (coro->mainstack)
684	{	726	{
685	perl_slots tmp_slot;
686	perl_slots *slot;
687
688	if (coro->flags & CF_RUNNING)	727	if (coro->flags & CF_RUNNING)
689	{	728	{
690	slot = &tmp_slot;	729	#define SYM(sym) PL_ ## sym
691		730	CORO_RSS;
692	#define VAR(name,type) slot->name = PL_ ## name;
693	# include "state.h"
694	#undef VAR	731	#undef SYM
695	}	732	}
696	else	733	else
697	slot = coro->slot;
698
699	if (slot)
700	{	734	{
701	rss += sizeof (slot->curstackinfo);	735	#define SYM(sym) coro->slot->sym
702	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	736	CORO_RSS;
703	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);	737	#undef SYM
704	rss += slot->tmps_max * sizeof (SV *);
705	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
706	rss += slot->scopestack_max * sizeof (I32);
707	rss += slot->savestack_max * sizeof (ANY);
708
709	#if !PERL_VERSION_ATLEAST (5,10,0)
710	rss += slot->retstack_max * sizeof (OP *);
711	#endif
712	}	738	}
713	}	739	}
714		740
715	return rss;	741	return rss;
716	}	742	}
…		…
818	slf_check_nop (pTHX_ struct CoroSLF *frame)	844	slf_check_nop (pTHX_ struct CoroSLF *frame)
819	{	845	{
820	return 0;	846	return 0;
821	}	847	}
822		848
		849	static int
		850	slf_check_repeat (pTHX_ struct CoroSLF *frame)
		851	{
		852	return 1;
		853	}
		854
823	static UNOP coro_setup_op;	855	static UNOP coro_setup_op;
824		856
825	static void NOINLINE /* noinline to keep it out of the transfer fast path */	857	static void NOINLINE /* noinline to keep it out of the transfer fast path */
826	coro_setup (pTHX_ struct coro *coro)	858	coro_setup (pTHX_ struct coro *coro)
827	{	859	{
…		…
857	{	889	{
858	dSP;	890	dSP;
859	UNOP myop;	891	UNOP myop;
860		892
861	Zero (&myop, 1, UNOP);	893	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	894	myop.op_next = Nullop;
		895	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	896	myop.op_flags = OPf_WANT_VOID;
864		897
865	PUSHMARK (SP);	898	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	899	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	900	PUTBACK;
868	PL_op = (OP *)&myop;	901	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	902	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	903	}
872		904
873	/* this newly created coroutine might be run on an existing cctx which most	905	/* this newly created coroutine might be run on an existing cctx which most
874	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.	906	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	907	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	908	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */	909	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		910
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	911	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		912	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	913	coro_setup_op.op_type = OP_ENTERSUB;
881	coro_setup_op.op_ppaddr = pp_slf;	914	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	915	/* no flags etc. required, as an init function won't be called */
883		916
884	PL_op = (OP *)&coro_setup_op;	917	PL_op = (OP *)&coro_setup_op;
885		918
886	/* copy throw, in case it was set before coro_setup */	919	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	920	CORO_THROW = coro->except;
888	}	921	}
889		922
890	static void	923	static void
891	coro_destruct (pTHX_ struct coro *coro)	924	coro_destruct (pTHX_ struct coro *coro)
892	{	925	{
…		…
916		949
917	SvREFCNT_dec (PL_diehook);	950	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	951	SvREFCNT_dec (PL_warnhook);
919		952
920	SvREFCNT_dec (coro->saved_deffh);	953	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	954	SvREFCNT_dec (coro->rouse_cb);
		955	SvREFCNT_dec (coro->invoke_cb);
		956	SvREFCNT_dec (coro->invoke_av);
922		957
923	coro_destruct_stacks (aTHX);	958	coro_destruct_stacks (aTHX);
924	}	959	}
925		960
926	INLINE void	961	INLINE void
…		…
998	{	1033	{
999	PERL_CONTEXT *cx = &cxstack[cxstack_ix];	1034	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000		1035
1001	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)	1036	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002	{	1037	{
1003	runops_proc_t old_runops = PL_runops;
1004	dSP;	1038	dSP;
1005	GV *gv = CvGV (cx->blk_sub.cv);	1039	GV *gv = CvGV (cx->blk_sub.cv);
1006	SV *fullname = sv_2mortal (newSV (0));	1040	SV *fullname = sv_2mortal (newSV (0));
1007		1041
1008	if (isGV (gv))	1042	if (isGV (gv))
…		…
1013	SAVETMPS;	1047	SAVETMPS;
1014	EXTEND (SP, 3);	1048	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1049	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1050	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1051	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1052	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1053	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1054	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);	1055	if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022	SPAGAIN;	1056	SPAGAIN;
1023	FREETMPS;	1057	FREETMPS;
…		…
1055		1089
1056	TAINT_NOT;	1090	TAINT_NOT;
1057	return 0;	1091	return 0;
1058	}	1092	}
1059		1093
1060	static struct coro_cctx *cctx_ssl_cctx;
1061	static struct CoroSLF cctx_ssl_frame;	1094	static struct CoroSLF cctx_ssl_frame;
1062		1095
1063	static void	1096	static void
1064	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)	1097	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065	{	1098	{
1066	ta->prev = (struct coro *)cctx_ssl_cctx;
1067	ta->next = 0;	1099	ta->prev = 0;
1068	}	1100	}
1069		1101
1070	static int	1102	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1103	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1104	{
1073	*frame = cctx_ssl_frame;	1105	*frame = cctx_ssl_frame;
1074		1106
1075	return 1;	1107	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1108	}
1077		1109
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1110	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1111	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1112	cctx_prepare (pTHX)
1081	{	1113	{
1082	PL_top_env = &PL_start_env;	1114	PL_top_env = &PL_start_env;
1083		1115
1084	if (cctx->flags & CC_TRACE)	1116	if (cctx_current->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1117	PL_runops = runops_trace;
1086		1118
1087	/* we already must be in an SLF call, there is no other valid way	1119	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1120	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1121	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1122	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1123
1092	cctx_ssl_cctx = cctx;	1124	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093	cctx_ssl_frame = slf_frame;	1125	cctx_ssl_frame = slf_frame;
1094		1126
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1127	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1128	slf_frame.check = slf_check_set_stacklevel;
1097	}	1129	}
…		…
1120	/* normally we would need to skip the entersub here */	1152	/* normally we would need to skip the entersub here */
1121	/* not doing so will re-execute it, which is exactly what we want */	1153	/* not doing so will re-execute it, which is exactly what we want */
1122	/* PL_nop = PL_nop->op_next */	1154	/* PL_nop = PL_nop->op_next */
1123		1155
1124	/* inject a fake subroutine call to cctx_init */	1156	/* inject a fake subroutine call to cctx_init */
1125	cctx_prepare (aTHX_ (coro_cctx *)arg);	1157	cctx_prepare (aTHX);
1126		1158
1127	/* cctx_run is the alternative tail of transfer() */	1159	/* cctx_run is the alternative tail of transfer() */
1128	transfer_tail (aTHX);	1160	transfer_tail (aTHX);
1129		1161
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1162	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1163	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1164	perl_run (PL_curinterp);
		1165	/*
		1166	* Unfortunately, there is no way to get at the return values of the
		1167	* coro body here, as perl_run destroys these
		1168	*/
1133		1169
1134	/*	1170	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1171	* If perl-run returns we assume exit() was being called or the coro
1136	* fell off the end, which seems to be the only valid (non-bug)	1172	* fell off the end, which seems to be the only valid (non-bug)
1137	* reason for perl_run to return. We try to exit by jumping to the	1173	* reason for perl_run to return. We try to exit by jumping to the
…		…
1221	cctx_destroy (coro_cctx *cctx)	1257	cctx_destroy (coro_cctx *cctx)
1222	{	1258	{
1223	if (!cctx)	1259	if (!cctx)
1224	return;	1260	return;
1225		1261
		1262	assert (cctx != cctx_current);//D temporary
		1263
1226	--cctx_count;	1264	--cctx_count;
1227	coro_destroy (&cctx->cctx);	1265	coro_destroy (&cctx->cctx);
1228		1266
1229	/* coro_transfer creates new, empty cctx's */	1267	/* coro_transfer creates new, empty cctx's */
1230	if (cctx->sptr)	1268	if (cctx->sptr)
…		…
1315	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)	1353	transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316	{	1354	{
1317	dSTACKLEVEL;	1355	dSTACKLEVEL;
1318		1356
1319	/* sometimes transfer is only called to set idle_sp */	1357	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1358	if (expect_false (!prev))
1321	{	1359	{
1322	((coro_cctx *)prev)->idle_sp = (void *)stacklevel;	1360	cctx_current->idle_sp = STACKLEVEL;
1323	assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */	1361	assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324	}	1362	}
1325	else if (expect_true (prev != next))	1363	else if (expect_true (prev != next))
1326	{	1364	{
1327	coro_cctx *prev__cctx;	1365	coro_cctx *cctx_prev;
1328		1366
1329	if (expect_false (prev->flags & CF_NEW))	1367	if (expect_false (prev->flags & CF_NEW))
1330	{	1368	{
1331	/* create a new empty/source context */	1369	/* create a new empty/source context */
1332	prev->cctx = cctx_new_empty ();
1333	prev->flags &= ~CF_NEW;	1370	prev->flags &= ~CF_NEW;
1334	prev->flags |= CF_RUNNING;	1371	prev->flags |= CF_RUNNING;
1335	}	1372	}
1336		1373
1337	prev->flags &= ~CF_RUNNING;	1374	prev->flags &= ~CF_RUNNING;
…		…
1348	coro_setup (aTHX_ next);	1385	coro_setup (aTHX_ next);
1349	}	1386	}
1350	else	1387	else
1351	load_perl (aTHX_ next);	1388	load_perl (aTHX_ next);
1352		1389
1353	prev__cctx = prev->cctx;
1354
1355	/* possibly untie and reuse the cctx */	1390	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1391	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1392	cctx_current->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1393	&& !(cctx_current->flags & CC_TRACE)
1359	&& !force_cctx	1394	&& !force_cctx
1360	))	1395	))
1361	{	1396	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1397	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));	1398	assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364
1365	prev->cctx = 0;
1366		1399
1367	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1400	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1368	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1401	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1369	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1402	if (expect_false (CCTX_EXPIRED (cctx_current)))
1370	if (!next->cctx)	1403	if (!next->cctx)
1371	next->cctx = cctx_get (aTHX);	1404	next->cctx = cctx_get (aTHX);
1372		1405
1373	cctx_put (prev__cctx);	1406	cctx_put (cctx_current);
		1407	assert (!prev->cctx);//D temporary
1374	}	1408	}
		1409	else
		1410	prev->cctx = cctx_current;
1375		1411
1376	++next->usecount;	1412	++next->usecount;
1377		1413
1378	if (expect_true (!next->cctx))	1414	cctx_prev = cctx_current;
1379	next->cctx = cctx_get (aTHX);	1415	cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380		1416
1381	if (expect_false (prev__cctx != next->cctx))	1417	next->cctx = 0;
		1418
		1419	if (expect_false (cctx_prev != cctx_current))
1382	{	1420	{
1383	prev__cctx->top_env = PL_top_env;	1421	cctx_prev->top_env = PL_top_env;
1384	PL_top_env = next->cctx->top_env;	1422	PL_top_env = cctx_current->top_env;
1385	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1423	coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386	}	1424	}
1387		1425
1388	transfer_tail (aTHX);	1426	transfer_tail (aTHX);
1389	}	1427	}
1390	}	1428	}
…		…
1429		1467
1430	coro->slot = 0;	1468	coro->slot = 0;
1431	}	1469	}
1432		1470
1433	cctx_destroy (coro->cctx);	1471	cctx_destroy (coro->cctx);
		1472	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1473	SvREFCNT_dec (coro->args);
		1474	SvREFCNT_dec (CORO_THROW);
1435		1475
1436	if (coro->next) coro->next->prev = coro->prev;	1476	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1477	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1478	if (coro == coro_first) coro_first = coro->next;
1439		1479
…		…
1493		1533
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1534	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1535	TRANSFER (ta, 1);
1496	}	1536	}
1497		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
1498	/** Coro ********************************************************************/	1561	/** Coro ********************************************************************/
1499		1562
1500	INLINE void	1563	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1564	coro_enq (pTHX_ struct coro *coro)
1502	{	1565	{
…		…
1563	api_is_ready (pTHX_ SV *coro_sv)	1626	api_is_ready (pTHX_ SV *coro_sv)
1564	{	1627	{
1565	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1628	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566	}	1629	}
1567		1630
		1631	/* expects to own a reference to next->hv */
1568	INLINE void	1632	INLINE void
		1633	prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
		1634	{
		1635	SV *prev_sv = SvRV (coro_current);
		1636
		1637	ta->prev = SvSTATE_hv (prev_sv);
		1638	ta->next = next;
		1639
		1640	TRANSFER_CHECK (*ta);
		1641
		1642	SvRV_set (coro_current, (SV *)next->hv);
		1643
		1644	free_coro_mortal (aTHX);
		1645	coro_mortal = prev_sv;
		1646	}
		1647
		1648	static void
1569	prepare_schedule (pTHX_ struct coro_transfer_args *ta)	1649	prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1570	{	1650	{
1571	SV *prev_sv, *next_sv;
1572
1573	for (;;)	1651	for (;;)
1574	{	1652	{
1575	next_sv = coro_deq (aTHX);	1653	SV *next_sv = coro_deq (aTHX);
1576		1654
1577	/* nothing to schedule: call the idle handler */
1578	if (expect_false (!next_sv))	1655	if (expect_true (next_sv))
1579	{	1656	{
		1657	struct coro *next = SvSTATE_hv (next_sv);
		1658
		1659	/* cannot transfer to destroyed coros, skip and look for next */
		1660	if (expect_false (next->flags & CF_DESTROYED))
		1661	SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */
		1662	else
		1663	{
		1664	next->flags &= ~CF_READY;
		1665	--coro_nready;
		1666
		1667	prepare_schedule_to (aTHX_ ta, next);
		1668	break;
		1669	}
		1670	}
		1671	else
		1672	{
		1673	/* nothing to schedule: call the idle handler */
1580	dSP;	1674	dSP;
1581		1675
1582	ENTER;	1676	ENTER;
1583	SAVETMPS;	1677	SAVETMPS;
1584		1678
…		…
1586	PUTBACK;	1680	PUTBACK;
1587	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);	1681	call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1588		1682
1589	FREETMPS;	1683	FREETMPS;
1590	LEAVE;	1684	LEAVE;
1591	continue;
1592	}	1685	}
1593
1594	ta->next = SvSTATE_hv (next_sv);
1595
1596	/* cannot transfer to destroyed coros, skip and look for next */
1597	if (expect_false (ta->next->flags & CF_DESTROYED))
1598	{
1599	SvREFCNT_dec (next_sv);
1600	/* coro_nready has already been taken care of by destroy */
1601	continue;
1602	}
1603
1604	--coro_nready;
1605	break;
1606	}	1686	}
1607
1608	/* free this only after the transfer */
1609	prev_sv = SvRV (coro_current);
1610	ta->prev = SvSTATE_hv (prev_sv);
1611	TRANSFER_CHECK (*ta);
1612	assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1613	ta->next->flags &= ~CF_READY;
1614	SvRV_set (coro_current, next_sv);
1615
1616	free_coro_mortal (aTHX);
1617	coro_mortal = prev_sv;
1618	}	1687	}
1619		1688
1620	INLINE void	1689	INLINE void
1621	prepare_cede (pTHX_ struct coro_transfer_args *ta)	1690	prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622	{	1691	{
…		…
1643	{	1712	{
1644	struct coro_transfer_args ta;	1713	struct coro_transfer_args ta;
1645		1714
1646	prepare_schedule (aTHX_ &ta);	1715	prepare_schedule (aTHX_ &ta);
1647	TRANSFER (ta, 1);	1716	TRANSFER (ta, 1);
		1717	}
		1718
		1719	static void
		1720	api_schedule_to (pTHX_ SV *coro_sv)
		1721	{
		1722	struct coro_transfer_args ta;
		1723	struct coro *next = SvSTATE (coro_sv);
		1724
		1725	SvREFCNT_inc_NN (coro_sv);
		1726	prepare_schedule_to (aTHX_ &ta, next);
1648	}	1727	}
1649		1728
1650	static int	1729	static int
1651	api_cede (pTHX)	1730	api_cede (pTHX)
1652	{	1731	{
…		…
1699	if (coro->flags & CF_RUNNING)	1778	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1779	PL_runops = RUNOPS_DEFAULT;
1701	else	1780	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1781	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1782	}
		1783	}
		1784
		1785	static void
		1786	coro_call_on_destroy (pTHX_ struct coro *coro)
		1787	{
		1788	SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
		1789	SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
		1790
		1791	if (on_destroyp)
		1792	{
		1793	AV *on_destroy = (AV *)SvRV (*on_destroyp);
		1794
		1795	while (AvFILLp (on_destroy) >= 0)
		1796	{
		1797	dSP; /* don't disturb outer sp */
		1798	SV *cb = av_pop (on_destroy);
		1799
		1800	PUSHMARK (SP);
		1801
		1802	if (statusp)
		1803	{
		1804	int i;
		1805	AV *status = (AV *)SvRV (*statusp);
		1806	EXTEND (SP, AvFILLp (status) + 1);
		1807
		1808	for (i = 0; i <= AvFILLp (status); ++i)
		1809	PUSHs (AvARRAY (status)[i]);
		1810	}
		1811
		1812	PUTBACK;
		1813	call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
		1814	}
		1815	}
		1816	}
		1817
		1818	static void
		1819	slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1820	{
		1821	int i;
		1822	HV *hv = (HV *)SvRV (coro_current);
		1823	AV *av = newAV ();
		1824
		1825	av_extend (av, items - 1);
		1826	for (i = 0; i < items; ++i)
		1827	av_push (av, SvREFCNT_inc_NN (arg [i]));
		1828
		1829	hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
		1830
		1831	av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
		1832	api_ready (aTHX_ sv_manager);
		1833
		1834	frame->prepare = prepare_schedule;
		1835	frame->check = slf_check_repeat;
		1836	}
		1837
		1838	/*****************************************************************************/
		1839	/* async pool handler */
		1840
		1841	static int
		1842	slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
		1843	{
		1844	HV *hv = (HV *)SvRV (coro_current);
		1845	struct coro *coro = (struct coro *)frame->data;
		1846
		1847	if (!coro->invoke_cb)
		1848	return 1; /* loop till we have invoke */
		1849	else
		1850	{
		1851	hv_store (hv, "desc", sizeof ("desc") - 1,
		1852	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1853
		1854	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
		1855
		1856	{
		1857	dSP;
		1858	XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
		1859	PUTBACK;
		1860	}
		1861
		1862	SvREFCNT_dec (GvAV (PL_defgv));
		1863	GvAV (PL_defgv) = coro->invoke_av;
		1864	coro->invoke_av = 0;
		1865
		1866	return 0;
		1867	}
		1868	}
		1869
		1870	static void
		1871	slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1872	{
		1873	HV *hv = (HV *)SvRV (coro_current);
		1874	struct coro *coro = SvSTATE_hv ((SV *)hv);
		1875
		1876	if (expect_true (coro->saved_deffh))
		1877	{
		1878	/* subsequent iteration */
		1879	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
		1880	coro->saved_deffh = 0;
		1881
		1882	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
		1883	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1884	{
		1885	coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
		1886	coro->invoke_av = newAV ();
		1887
		1888	frame->prepare = prepare_nop;
		1889	}
		1890	else
		1891	{
		1892	av_clear (GvAV (PL_defgv));
		1893	hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
		1894
		1895	coro->prio = 0;
		1896
		1897	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1898	api_trace (aTHX_ coro_current, 0);
		1899
		1900	frame->prepare = prepare_schedule;
		1901	av_push (av_async_pool, SvREFCNT_inc (hv));
		1902	}
		1903	}
		1904	else
		1905	{
		1906	/* first iteration, simply fall through */
		1907	frame->prepare = prepare_nop;
		1908	}
		1909
		1910	frame->check = slf_check_pool_handler;
		1911	frame->data = (void *)coro;
		1912	}
		1913
		1914	/*****************************************************************************/
		1915	/* rouse callback */
		1916
		1917	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1918
		1919	static void
		1920	coro_rouse_callback (pTHX_ CV *cv)
		1921	{
		1922	dXSARGS;
		1923	SV *data = (SV *)GENSUB_ARG;
		1924
		1925	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1926	{
		1927	/* first call, set args */
		1928	AV *av = newAV ();
		1929	SV *coro = SvRV (data);
		1930
		1931	SvRV_set (data, (SV *)av);
		1932	api_ready (aTHX_ coro);
		1933	SvREFCNT_dec (coro);
		1934
		1935	/* better take a full copy of the arguments */
		1936	while (items--)
		1937	av_store (av, items, newSVsv (ST (items)));
		1938	}
		1939
		1940	XSRETURN_EMPTY;
		1941	}
		1942
		1943	static int
		1944	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1945	{
		1946	SV *data = (SV *)frame->data;
		1947
		1948	if (CORO_THROW)
		1949	return 0;
		1950
		1951	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1952	return 1;
		1953
		1954	/* now push all results on the stack */
		1955	{
		1956	dSP;
		1957	AV *av = (AV *)SvRV (data);
		1958	int i;
		1959
		1960	EXTEND (SP, AvFILLp (av) + 1);
		1961	for (i = 0; i <= AvFILLp (av); ++i)
		1962	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1963
		1964	/* we have stolen the elements, so ste length to zero and free */
		1965	AvFILLp (av) = -1;
		1966	av_undef (av);
		1967
		1968	PUTBACK;
		1969	}
		1970
		1971	return 0;
		1972	}
		1973
		1974	static void
		1975	slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		1976	{
		1977	SV *cb;
		1978
		1979	if (items)
		1980	cb = arg [0];
		1981	else
		1982	{
		1983	struct coro *coro = SvSTATE_current;
		1984
		1985	if (!coro->rouse_cb)
		1986	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1987
		1988	cb = sv_2mortal (coro->rouse_cb);
		1989	coro->rouse_cb = 0;
		1990	}
		1991
		1992	if (!SvROK (cb)
		1993	|| SvTYPE (SvRV (cb)) != SVt_PVCV
		1994	|| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1995	croak ("Coro::rouse_wait called with illegal callback argument,");
		1996
		1997	{
		1998	CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */
		1999	SV *data = (SV *)GENSUB_ARG;
		2000
		2001	frame->data = (void *)data;
		2002	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		2003	frame->check = slf_check_rouse_wait;
		2004	}
		2005	}
		2006
		2007	static SV *
		2008	coro_new_rouse_cb (pTHX)
		2009	{
		2010	HV *hv = (HV *)SvRV (coro_current);
		2011	struct coro *coro = SvSTATE_hv (hv);
		2012	SV *data = newRV_inc ((SV *)hv);
		2013	SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data);
		2014
		2015	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		2016	SvREFCNT_dec (data); /* magicext increases the refcount */
		2017
		2018	SvREFCNT_dec (coro->rouse_cb);
		2019	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		2020
		2021	return cb;
1704	}	2022	}
1705		2023
1706	/*****************************************************************************/	2024	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	2025	/* schedule-like-function opcode (SLF) */
1708		2026
…		…
1755	static void	2073	static void
1756	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2074	slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757	{	2075	{
1758	frame->prepare = prepare_schedule;	2076	frame->prepare = prepare_schedule;
1759	frame->check = slf_check_nop;	2077	frame->check = slf_check_nop;
		2078	}
		2079
		2080	static void
		2081	slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
		2082	{
		2083	struct coro *next = (struct coro *)slf_frame.data;
		2084
		2085	SvREFCNT_inc_NN (next->hv);
		2086	prepare_schedule_to (aTHX_ ta, next);
		2087	}
		2088
		2089	static void
		2090	slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2091	{
		2092	if (!items)
		2093	croak ("Coro::schedule_to expects a coroutine argument, caught");
		2094
		2095	frame->data = (void *)SvSTATE (arg [0]);
		2096	frame->prepare = slf_prepare_schedule_to;
		2097	frame->check = slf_check_nop;
		2098	}
		2099
		2100	static void
		2101	slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2102	{
		2103	api_ready (aTHX_ SvRV (coro_current));
		2104
		2105	slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760	}	2106	}
1761		2107
1762	static void	2108	static void
1763	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2109	slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764	{	2110	{
…		…
1835	}	2181	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	2182	while (slf_frame.check (aTHX_ &slf_frame));
1837		2183
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	2184	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		2185
		2186	/* exception handling */
		2187	if (expect_false (CORO_THROW))
		2188	{
		2189	SV *exception = sv_2mortal (CORO_THROW);
		2190
		2191	CORO_THROW = 0;
		2192	sv_setsv (ERRSV, exception);
		2193	croak (0);
		2194	}
		2195
1840	/* return value handling - mostly like entersub */	2196	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2197	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2198	if (GIMME_V == G_SCALAR)
1843	{	2199	{
1844	dSP;	2200	dSP;
…		…
1850	bot [1] = *sp;	2206	bot [1] = *sp;
1851		2207
1852	SP = bot + 1;	2208	SP = bot + 1;
1853		2209
1854	PUTBACK;	2210	PUTBACK;
1855	}
1856
1857	/* exception handling */
1858	if (expect_false (coro_throw))
1859	{
1860	SV *exception = sv_2mortal (coro_throw);
1861
1862	coro_throw = 0;
1863	sv_setsv (ERRSV, exception);
1864	croak (0);
1865	}	2211	}
1866		2212
1867	return NORMAL;	2213	return NORMAL;
1868	}	2214	}
1869		2215
…		…
1910	}	2256	}
1911	else	2257	else
1912	slf_argc = 0;	2258	slf_argc = 0;
1913		2259
1914	PL_op->op_ppaddr = pp_slf;	2260	PL_op->op_ppaddr = pp_slf;
1915	PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */	2261	/*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916		2262
1917	PL_op = (OP *)&slf_restore;	2263	PL_op = (OP *)&slf_restore;
1918	}	2264	}
1919		2265
1920	/*****************************************************************************/	2266	/*****************************************************************************/
…		…
1991	PerlIOBuf_get_cnt,	2337	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2338	PerlIOBuf_set_ptrcnt,
1993	};	2339	};
1994		2340
1995	/*****************************************************************************/	2341	/*****************************************************************************/
		2342	/* Coro::Semaphore & Coro::Signal */
		2343
		2344	static SV *
		2345	coro_waitarray_new (pTHX_ int count)
		2346	{
		2347	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2348	AV *av = newAV ();
		2349	SV **ary;
		2350
		2351	/* unfortunately, building manually saves memory */
		2352	Newx (ary, 2, SV *);
		2353	AvALLOC (av) = ary;
		2354	/*AvARRAY (av) = ary;*/
		2355	SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2356	AvMAX (av) = 1;
		2357	AvFILLp (av) = 0;
		2358	ary [0] = newSViv (count);
		2359
		2360	return newRV_noinc ((SV *)av);
		2361	}
		2362
1996	/* Coro::Semaphore */	2363	/* semaphore */
1997		2364
1998	static void	2365	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2366	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2367	{
2001	SV *count_sv = AvARRAY (av)[0];	2368	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2380	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2381	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2382	cb = av_shift (av);
2016		2383
2017	if (SvOBJECT (cb))	2384	if (SvOBJECT (cb))
		2385	{
2018	api_ready (aTHX_ cb);	2386	api_ready (aTHX_ cb);
2019	else	2387	--count;
2020	croak ("callbacks not yet supported");	2388	}
		2389	else if (SvTYPE (cb) == SVt_PVCV)
		2390	{
		2391	dSP;
		2392	PUSHMARK (SP);
		2393	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2394	PUTBACK;
		2395	call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
		2396	}
2021		2397
2022	SvREFCNT_dec (cb);	2398	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2399	}
2026	}	2400	}
2027		2401
2028	static void	2402	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2403	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2405	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2406	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2407	}
2034		2408
2035	static int	2409	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2410	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2411	{
2038	AV *av = (AV *)frame->data;	2412	AV *av = (AV *)frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2413	SV *count_sv = AvARRAY (av)[0];
2040		2414
		2415	/* if we are about to throw, don't actually acquire the lock, just throw */
		2416	if (CORO_THROW)
		2417	return 0;
2041	if (SvIVX (count_sv) > 0)	2418	else if (SvIVX (count_sv) > 0)
2042	{	2419	{
2043	SvSTATE_current->on_destroy = 0;	2420	SvSTATE_current->on_destroy = 0;
		2421
		2422	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2423	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2424	else
		2425	coro_semaphore_adjust (aTHX_ av, 0);
		2426
2045	return 0;	2427	return 0;
2046	}	2428	}
2047	else	2429	else
2048	{	2430	{
2049	int i;	2431	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2440	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2441	return 1;
2060	}	2442	}
2061	}	2443	}
2062		2444
2063	static void	2445	static int
		2446	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2447	{
		2448	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2449	}
		2450
		2451	static int
		2452	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2453	{
		2454	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2455	}
		2456
		2457	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)	2458	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065	{	2459	{
2066	AV *av = (AV *)SvRV (arg [0]);	2460	AV *av = (AV *)SvRV (arg [0]);
2067		2461
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2462	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2463	{
2070	frame->data = (void *)av;	2464	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2465	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2466	}
2074	else	2467	else
2075	{	2468	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2469	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2470
2078	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));	2471	frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079	frame->prepare = prepare_schedule;	2472	frame->prepare = prepare_schedule;
2080		2473
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2474	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2475	/* we arrange for a temporary on_destroy that calls adjust (0) */
2083	assert (!SvSTATE_current->on_destroy);//D
2084	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2476	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2477	}
		2478	}
2086		2479
		2480	static void
		2481	slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2482	{
		2483	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2484	frame->check = slf_check_semaphore_down;
2088
2089	}	2485	}
2090		2486
2091	/*****************************************************************************/	2487	static void
2092	/* gensub: simple closure generation utility */	2488	slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2093
2094	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2095
2096	/* create a closure from XS, returns a code reference */
2097	/* the arg can be accessed via GENSUB_ARG from the callback */
2098	/* the callback must use dXSARGS/XSRETURN */
2099	static SV *
2100	gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2101	{	2489	{
2102	CV *cv = (CV *)newSV (0);	2490	if (items >= 2)
		2491	{
		2492	/* callback form */
		2493	AV *av = (AV *)SvRV (arg [0]);
		2494	CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]);
2103		2495
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2496	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2497
2106	CvANON_on (cv);	2498	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2499	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2500
2111	return newRV_noinc ((SV *)cv);	2501	frame->prepare = prepare_nop;
		2502	frame->check = slf_check_nop;
		2503	}
		2504	else
		2505	{
		2506	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2507	frame->check = slf_check_semaphore_wait;
		2508	}
		2509	}
		2510
		2511	/* signal */
		2512
		2513	static void
		2514	coro_signal_wake (pTHX_ AV *av, int count)
		2515	{
		2516	SvIVX (AvARRAY (av)[0]) = 0;
		2517
		2518	/* now signal count waiters */
		2519	while (count > 0 && AvFILLp (av) > 0)
		2520	{
		2521	SV *cb;
		2522
		2523	/* swap first two elements so we can shift a waiter */
		2524	cb = AvARRAY (av)[0];
		2525	AvARRAY (av)[0] = AvARRAY (av)[1];
		2526	AvARRAY (av)[1] = cb;
		2527
		2528	cb = av_shift (av);
		2529
		2530	api_ready (aTHX_ cb);
		2531	sv_setiv (cb, 0); /* signal waiter */
		2532	SvREFCNT_dec (cb);
		2533
		2534	--count;
		2535	}
		2536	}
		2537
		2538	static int
		2539	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2540	{
		2541	/* if we are about to throw, also stop waiting */
		2542	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2543	}
		2544
		2545	static void
		2546	slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
		2547	{
		2548	AV *av = (AV *)SvRV (arg [0]);
		2549
		2550	if (SvIVX (AvARRAY (av)[0]))
		2551	{
		2552	SvIVX (AvARRAY (av)[0]) = 0;
		2553	frame->prepare = prepare_nop;
		2554	frame->check = slf_check_nop;
		2555	}
		2556	else
		2557	{
		2558	SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */
		2559
		2560	av_push (av, waiter);
		2561
		2562	frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
		2563	frame->prepare = prepare_schedule;
		2564	frame->check = slf_check_signal_wait;
		2565	}
2112	}	2566	}
2113		2567
2114	/*****************************************************************************/	2568	/*****************************************************************************/
2115	/* Coro::AIO */	2569	/* Coro::AIO */
2116		2570
…		…
2131	dXSARGS;	2585	dXSARGS;
2132	AV *state = (AV *)GENSUB_ARG;	2586	AV *state = (AV *)GENSUB_ARG;
2133	SV *coro = av_pop (state);	2587	SV *coro = av_pop (state);
2134	SV *data_sv = newSV (sizeof (struct io_state));	2588	SV *data_sv = newSV (sizeof (struct io_state));
2135		2589
2136	av_extend (state, items);	2590	av_extend (state, items - 1);
2137		2591
2138	sv_upgrade (data_sv, SVt_PV);	2592	sv_upgrade (data_sv, SVt_PV);
2139	SvCUR_set (data_sv, sizeof (struct io_state));	2593	SvCUR_set (data_sv, sizeof (struct io_state));
2140	SvPOK_only (data_sv);	2594	SvPOK_only (data_sv);
2141		2595
…		…
2166	static int	2620	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2621	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2622	{
2169	AV *state = (AV *)frame->data;	2623	AV *state = (AV *)frame->data;
2170		2624
		2625	/* if we are about to throw, return early */
		2626	/* this does not cancel the aio request, but at least */
		2627	/* it quickly returns */
		2628	if (CORO_THROW)
		2629	return 0;
		2630
2171	/* one element that is an RV? repeat! */	2631	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2632	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2633	return 1;
2174		2634
2175	/* restore status */	2635	/* restore status */
…		…
2270	XSRETURN_EMPTY;	2730	XSRETURN_EMPTY;
2271	}	2731	}
2272		2732
2273	/*****************************************************************************/	2733	/*****************************************************************************/
2274		2734
		2735	#if CORO_CLONE
		2736	# include "clone.c"
		2737	#endif
		2738
2275	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	2739	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276		2740
2277	PROTOTYPES: DISABLE	2741	PROTOTYPES: DISABLE
2278		2742
2279	BOOT:	2743	BOOT:
…		…
2283	coro_thx = PERL_GET_CONTEXT;	2747	coro_thx = PERL_GET_CONTEXT;
2284	# endif	2748	# endif
2285	#endif	2749	#endif
2286	BOOT_PAGESIZE;	2750	BOOT_PAGESIZE;
2287		2751
		2752	cctx_current = cctx_new_empty ();
		2753
2288	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);	2754	irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);	2755	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290		2756
2291	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;	2757	orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2292	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;	2758	orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
…		…
2311		2777
2312	{	2778	{
2313	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));	2779	SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314		2780
2315	if (!PL_custom_op_names) PL_custom_op_names = newHV ();	2781	if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316	hv_store_ent (PL_custom_op_names, slf,	2782	hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317	newSVpv ("coro_slf", 0), 0);
2318		2783
2319	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();	2784	if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320	hv_store_ent (PL_custom_op_descs, slf,	2785	hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321	newSVpv ("coro schedule like function", 0), 0);
2322	}	2786	}
2323		2787
2324	coroapi.ver = CORO_API_VERSION;	2788	coroapi.ver = CORO_API_VERSION;
2325	coroapi.rev = CORO_API_REVISION;	2789	coroapi.rev = CORO_API_REVISION;
2326		2790
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2809	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2810	}
2347		2811
2348	SV *	2812	SV *
2349	new (char *klass, ...)	2813	new (char *klass, ...)
		2814	ALIAS:
		2815	Coro::new = 1
2350	CODE:	2816	CODE:
2351	{	2817	{
2352	struct coro *coro;	2818	struct coro *coro;
2353	MAGIC *mg;	2819	MAGIC *mg;
2354	HV *hv;	2820	HV *hv;
		2821	CV *cb;
2355	int i;	2822	int i;
		2823
		2824	if (items > 1)
		2825	{
		2826	cb = coro_sv_2cv (aTHX_ ST (1));
		2827
		2828	if (!ix)
		2829	{
		2830	if (CvISXSUB (cb))
		2831	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2832
		2833	if (!CvROOT (cb))
		2834	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2835	}
		2836	}
2356		2837
2357	Newz (0, coro, 1, struct coro);	2838	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2839	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2840	coro->flags = CF_NEW;
2360		2841
…		…
2365	coro->hv = hv = newHV ();	2846	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);	2847	mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2367	mg->mg_flags |= MGf_DUP;	2848	mg->mg_flags |= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2849	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2850
		2851	if (items > 1)
		2852	{
2370	av_extend (coro->args, items - 1);	2853	av_extend (coro->args, items - 1 + ix - 1);
		2854
		2855	if (ix)
		2856	{
		2857	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2858	cb = cv_coro_run;
		2859	}
		2860
		2861	coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
		2862
2371	for (i = 1; i < items; i++)	2863	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2864	av_push (coro->args, newSVsv (ST (i)));
		2865	}
2373	}	2866	}
2374	OUTPUT:	2867	OUTPUT:
2375	RETVAL	2868	RETVAL
2376		2869
2377	void	2870	void
…		…
2390	void	2883	void
2391	_exit (int code)	2884	_exit (int code)
2392	PROTOTYPE: $	2885	PROTOTYPE: $
2393	CODE:	2886	CODE:
2394	_exit (code);	2887	_exit (code);
		2888
		2889	SV *
		2890	clone (Coro::State coro)
		2891	CODE:
		2892	{
		2893	#if CORO_CLONE
		2894	struct coro *ncoro = coro_clone (coro);
		2895	MAGIC *mg;
		2896	/* TODO: too much duplication */
		2897	ncoro->hv = newHV ();
		2898	mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
		2899	mg->mg_flags |= MGf_DUP;
		2900	RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
		2901	#else
		2902	croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
		2903	#endif
		2904	}
		2905	OUTPUT:
		2906	RETVAL
2395		2907
2396	int	2908	int
2397	cctx_stacksize (int new_stacksize = 0)	2909	cctx_stacksize (int new_stacksize = 0)
2398	PROTOTYPE: ;$	2910	PROTOTYPE: ;$
2399	CODE:	2911	CODE:
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	3018	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	3019	PROTOTYPE: $;$
2508	CODE:	3020	CODE:
2509	{	3021	{
2510	struct coro *current = SvSTATE_current;	3022	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	3023	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	3024	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	3025	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	3026	}
2515		3027
2516	void	3028	void
…		…
2575		3087
2576	BOOT:	3088	BOOT:
2577	{	3089	{
2578	int i;	3090	int i;
2579		3091
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	3092	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	3093	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		3094	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
		3095	cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	3096	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585	SvREADONLY_on (coro_current);	3097	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		3098	av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
		3099	sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
		3100
		3101	sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
		3102	sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
		3103	cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
		3104	cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
2586		3105
2587	coro_stash = gv_stashpv ("Coro", TRUE);	3106	coro_stash = gv_stashpv ("Coro", TRUE);
2588		3107
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	3108	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
2590	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	3109	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
…		…
2598		3117
2599	{	3118	{
2600	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);	3119	SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601		3120
2602	coroapi.schedule = api_schedule;	3121	coroapi.schedule = api_schedule;
		3122	coroapi.schedule_to = api_schedule_to;
2603	coroapi.cede = api_cede;	3123	coroapi.cede = api_cede;
2604	coroapi.cede_notself = api_cede_notself;	3124	coroapi.cede_notself = api_cede_notself;
2605	coroapi.ready = api_ready;	3125	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	3126	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	3127	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	3128	coroapi.current = coro_current;
2609		3129
2610	GCoroAPI = &coroapi;	3130	/*GCoroAPI = &coroapi;*/
2611	sv_setiv (sv, (IV)&coroapi);	3131	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	3132	SvREADONLY_on (sv);
2613	}	3133	}
2614	}	3134	}
		3135
		3136	void
		3137	terminate (...)
		3138	CODE:
		3139	CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615		3140
2616	void	3141	void
2617	schedule (...)	3142	schedule (...)
2618	CODE:	3143	CODE:
2619	CORO_EXECUTE_SLF_XS (slf_init_schedule);	3144	CORO_EXECUTE_SLF_XS (slf_init_schedule);
2620		3145
2621	void	3146	void
		3147	schedule_to (...)
		3148	CODE:
		3149	CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
		3150
		3151	void
		3152	cede_to (...)
		3153	CODE:
		3154	CORO_EXECUTE_SLF_XS (slf_init_cede_to);
		3155
		3156	void
2622	cede (...)	3157	cede (...)
2623	CODE:	3158	CODE:
2624	CORO_EXECUTE_SLF_XS (slf_init_cede);	3159	CORO_EXECUTE_SLF_XS (slf_init_cede);
2625		3160
2626	void	3161	void
2627	cede_notself (...)	3162	cede_notself (...)
2628	CODE:	3163	CODE:
2629	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);	3164	CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
		3165
		3166	void
		3167	_cancel (Coro::State self)
		3168	CODE:
		3169	coro_state_destroy (aTHX_ self);
		3170	coro_call_on_destroy (aTHX_ self);
2630		3171
2631	void	3172	void
2632	_set_current (SV *current)	3173	_set_current (SV *current)
2633	PROTOTYPE: $	3174	PROTOTYPE: $
2634	CODE:	3175	CODE:
…		…
2679	CODE:	3220	CODE:
2680	RETVAL = coro_nready;	3221	RETVAL = coro_nready;
2681	OUTPUT:	3222	OUTPUT:
2682	RETVAL	3223	RETVAL
2683		3224
2684	# for async_pool speedup
2685	void	3225	void
2686	_pool_1 (SV *cb)	3226	_pool_handler (...)
2687	CODE:	3227	CODE:
2688	{	3228	CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
2689	HV *hv = (HV *)SvRV (coro_current);
2690	struct coro *coro = SvSTATE_hv ((SV *)hv);
2691	AV *defav = GvAV (PL_defgv);
2692	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2693	AV *invoke_av;
2694	int i, len;
2695		3229
2696	if (!invoke)	3230	void
		3231	async_pool (SV *cv, ...)
		3232	PROTOTYPE: &@
		3233	PPCODE:
		3234	{
		3235	HV *hv = (HV *)av_pop (av_async_pool);
		3236	AV *av = newAV ();
		3237	SV *cb = ST (0);
		3238	int i;
		3239
		3240	av_extend (av, items - 2);
		3241	for (i = 1; i < items; ++i)
		3242	av_push (av, SvREFCNT_inc_NN (ST (i)));
		3243
		3244	if ((SV *)hv == &PL_sv_undef)
2697	{	3245	{
2698	SV *old = PL_diehook;	3246	PUSHMARK (SP);
2699	PL_diehook = 0;	3247	EXTEND (SP, 2);
2700	SvREFCNT_dec (old);	3248	PUSHs (sv_Coro);
2701	croak ("\3async_pool terminate\2\n");	3249	PUSHs ((SV *)cv_pool_handler);
		3250	PUTBACK;
		3251	call_sv ((SV *)cv_coro_state_new, G_SCALAR);
		3252	SPAGAIN;
		3253
		3254	hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs));
2702	}	3255	}
2703		3256
2704	SvREFCNT_dec (coro->saved_deffh);
2705	coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2706
2707	hv_store (hv, "desc", sizeof ("desc") - 1,
2708	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2709
2710	invoke_av = (AV *)SvRV (invoke);
2711	len = av_len (invoke_av);
2712
2713	sv_setsv (cb, AvARRAY (invoke_av)[0]);
2714
2715	if (len > 0)
2716	{	3257	{
2717	av_fill (defav, len - 1);	3258	struct coro *coro = SvSTATE_hv (hv);
2718	for (i = 0; i < len; ++i)	3259
2719	av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));	3260	assert (!coro->invoke_cb);
		3261	assert (!coro->invoke_av);
		3262	coro->invoke_cb = SvREFCNT_inc (cb);
		3263	coro->invoke_av = av;
2720	}	3264	}
		3265
		3266	api_ready (aTHX_ (SV *)hv);
		3267
		3268	if (GIMME_V != G_VOID)
		3269	XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
		3270	else
		3271	SvREFCNT_dec (hv);
2721	}	3272	}
		3273
		3274	SV *
		3275	rouse_cb ()
		3276	PROTOTYPE:
		3277	CODE:
		3278	RETVAL = coro_new_rouse_cb (aTHX);
		3279	OUTPUT:
		3280	RETVAL
2722		3281
2723	void	3282	void
2724	_pool_2 (SV *cb)	3283	rouse_wait (...)
		3284	PROTOTYPE: ;$
2725	CODE:	3285	PPCODE:
2726	{	3286	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
2727	HV *hv = (HV *)SvRV (coro_current);
2728	struct coro *coro = SvSTATE_hv ((SV *)hv);
2729
2730	sv_setsv (cb, &PL_sv_undef);
2731
2732	SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2733	coro->saved_deffh = 0;
2734
2735	if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2736	|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2737	{
2738	SV *old = PL_diehook;
2739	PL_diehook = 0;
2740	SvREFCNT_dec (old);
2741	croak ("\3async_pool terminate\2\n");
2742	}
2743
2744	av_clear (GvAV (PL_defgv));
2745	hv_store (hv, "desc", sizeof ("desc") - 1,
2746	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747
2748	coro->prio = 0;
2749
2750	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2751	api_trace (aTHX_ coro_current, 0);
2752
2753	av_push (av_async_pool, newSVsv (coro_current));
2754	}
2755		3287
2756		3288
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3289	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3290
2759	BOOT:	3291	BOOT:
…		…
2761		3293
2762		3294
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3295	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3296
2765	SV *	3297	SV *
2766	new (SV *klass, SV *count_ = 0)	3298	new (SV *klass, SV *count = 0)
2767	CODE:	3299	CODE:
2768	{	3300	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3301	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3302	GvSTASH (CvGV (cv))
2771	SV **ary;	3303	);
		3304	OUTPUT:
		3305	RETVAL
2772		3306
2773	/* unfortunately, building manually saves memory */	3307	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3308	SV *
2775	AvALLOC (av) = ary;	3309	_alloc (int count)
2776	AvARRAY (av) = ary;	3310	CODE:
2777	AvMAX (av) = 1;	3311	RETVAL = coro_waitarray_new (aTHX_ count);
2778	AvFILLp (av) = 0;
2779	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2780
2781	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2782	}
2783	OUTPUT:	3312	OUTPUT:
2784	RETVAL	3313	RETVAL
2785		3314
2786	SV *	3315	SV *
2787	count (SV *self)	3316	count (SV *self)
…		…
2796	adjust = 1	3325	adjust = 1
2797	CODE:	3326	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3327	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3328
2800	void	3329	void
2801	down (SV *self)	3330	down (...)
2802	CODE:	3331	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3332	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3333
		3334	void
		3335	wait (...)
		3336	CODE:
		3337	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3338
2805	void	3339	void
2806	try (SV *self)	3340	try (SV *self)
2807	PPCODE:	3341	PPCODE:
2808	{	3342	{
…		…
2820	XSRETURN_NO;	3354	XSRETURN_NO;
2821	}	3355	}
2822		3356
2823	void	3357	void
2824	waiters (SV *self)	3358	waiters (SV *self)
2825	CODE:	3359	PPCODE:
2826	{	3360	{
2827	AV *av = (AV *)SvRV (self);	3361	AV *av = (AV *)SvRV (self);
		3362	int wcount = AvFILLp (av) + 1 - 1;
2828		3363
2829	if (GIMME_V == G_SCALAR)	3364	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3365	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3366	else
2832	{	3367	{
2833	int i;	3368	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3369	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3370	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3371	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3372	}
2838	}	3373	}
		3374
		3375	MODULE = Coro::State PACKAGE = Coro::Signal
		3376
		3377	SV *
		3378	new (SV *klass)
		3379	CODE:
		3380	RETVAL = sv_bless (
		3381	coro_waitarray_new (aTHX_ 0),
		3382	GvSTASH (CvGV (cv))
		3383	);
		3384	OUTPUT:
		3385	RETVAL
		3386
		3387	void
		3388	wait (...)
		3389	CODE:
		3390	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3391
		3392	void
		3393	broadcast (SV *self)
		3394	CODE:
		3395	{
		3396	AV *av = (AV *)SvRV (self);
		3397	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3398	}
		3399
		3400	void
		3401	send (SV *self)
		3402	CODE:
		3403	{
		3404	AV *av = (AV *)SvRV (self);
		3405
		3406	if (AvFILLp (av))
		3407	coro_signal_wake (aTHX_ av, 1);
		3408	else
		3409	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3410	}
		3411
		3412	IV
		3413	awaited (SV *self)
		3414	CODE:
		3415	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3416	OUTPUT:
		3417	RETVAL
2839		3418
2840		3419
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3420	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3421
2843	BOOT:	3422	BOOT:
…		…
2871		3450
2872	void	3451	void
2873	_register (char *target, char *proto, SV *req)	3452	_register (char *target, char *proto, SV *req)
2874	CODE:	3453	CODE:
2875	{	3454	{
2876	HV *st;	3455	CV *req_cv = coro_sv_2cv (aTHX_ req);
2877	GV *gvp;
2878	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2879	/* newXSproto doesn't return the CV on 5.8 */	3456	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3457	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3458	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3459	sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3460	}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines