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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs.
Revision 1.310 by root, Wed Nov 19 16:01:32 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
…		…
120	#endif	120	#endif
121		121
122	/* The next macros try to return the current stack pointer, in an as	122	/* The next macros try to return the current stack pointer, in an as
123	* portable way as possible. */	123	* portable way as possible. */
124	#if __GNUC__ >= 4	124	#if __GNUC__ >= 4
		125	# define dSTACKLEVEL int stacklevel_dummy
125	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	126	# define STACKLEVEL __builtin_frame_address (0)
126	#else	127	#else
127	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel	128	# define dSTACKLEVEL volatile void *stacklevel
		129	# define STACKLEVEL ((void *)&stacklevel)
128	#endif	130	#endif
129		131
130	#define IN_DESTRUCT (PL_main_cv == Nullcv)	132	#define IN_DESTRUCT (PL_main_cv == Nullcv)
131		133
132	#if __GNUC__ >= 3	134	#if __GNUC__ >= 3
…		…
143	#define expect_true(expr) expect ((expr) != 0, 1)	145	#define expect_true(expr) expect ((expr) != 0, 1)
144		146
145	#define NOINLINE attribute ((noinline))	147	#define NOINLINE attribute ((noinline))
146		148
147	#include "CoroAPI.h"	149	#include "CoroAPI.h"
		150	#define GCoroAPI (&coroapi) /* very sneaky */
148		151
149	#ifdef USE_ITHREADS	152	#ifdef USE_ITHREADS
150	# if CORO_PTHREAD	153	# if CORO_PTHREAD
151	static void *coro_thx;	154	static void *coro_thx;
152	# endif	155	# endif
…		…
243	/* state data */	246	/* state data */
244	struct CoroSLF slf_frame; /* saved slf frame */	247	struct CoroSLF slf_frame; /* saved slf frame */
245	AV *mainstack;	248	AV *mainstack;
246	perl_slots slot; / basically the saved sp */	249	perl_slots slot; / basically the saved sp */
247		250
		251	CV startcv; / the CV to execute */
248	AV args; / data associated with this coroutine (initial args) */	252	AV args; / data associated with this coroutine (initial args) */
249	int refcnt; /* coroutines are refcounted, yes */	253	int refcnt; /* coroutines are refcounted, yes */
250	int flags; /* CF_ flags */	254	int flags; /* CF_ flags */
251	HV hv; / the perl hash associated with this coro, if any */	255	HV hv; / the perl hash associated with this coro, if any */
252	void (on_destroy)(pTHX_ struct coro coro);	256	void (on_destroy)(pTHX_ struct coro coro);
253		257
254	/* statistics */	258	/* statistics */
255	int usecount; /* number of transfers to this coro */	259	int usecount; /* number of transfers to this coro */
256		260
257	/* coro process data */	261	/* coro process data */
258	int prio;	262	int prio;
259	SV throw; / exception to be thrown */	263	SV except; / exception to be thrown */
		264	SV *rouse_cb;
260		265
261	/* async_pool */	266	/* async_pool */
262	SV *saved_deffh;	267	SV *saved_deffh;
263		268
264	/* linked list */	269	/* linked list */
…		…
270		275
271	/* the following variables are effectively part of the perl context */	276	/* the following variables are effectively part of the perl context */
272	/* and get copied between struct coro and these variables */	277	/* and get copied between struct coro and these variables */
273	/* the mainr easonw e don't support windows process emulation */	278	/* the mainr easonw e don't support windows process emulation */
274	static struct CoroSLF slf_frame; /* the current slf frame */	279	static struct CoroSLF slf_frame; /* the current slf frame */
275	static SV *coro_throw;
276		280
277	/ Coro ******************************************************************/	281	/ Coro ******************************************************************/
278		282
279	#define PRIO_MAX 3	283	#define PRIO_MAX 3
280	#define PRIO_HIGH 1	284	#define PRIO_HIGH 1
…		…
285		289
286	/* for Coro.pm */	290	/* for Coro.pm */
287	static SV *coro_current;	291	static SV *coro_current;
288	static SV *coro_readyhook;	292	static SV *coro_readyhook;
289	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];	293	static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
		294	static CV *cv_coro_run;
290	static struct coro *coro_first;	295	static struct coro *coro_first;
291	#define coro_nready coroapi.nready	296	#define coro_nready coroapi.nready
292		297
293	/ lowlevel stuff ********************************************************/	298	/ lowlevel stuff ********************************************************/
294		299
…		…
318	#if PERL_VERSION_ATLEAST (5,10,0)	323	#if PERL_VERSION_ATLEAST (5,10,0)
319	/* silence stupid and wrong 5.10 warning that I am unable to switch off */	324	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
320	get_hv (name, create);	325	get_hv (name, create);
321	#endif	326	#endif
322	return get_hv (name, create);	327	return get_hv (name, create);
		328	}
		329
		330	/* may croak */
		331	INLINE CV *
		332	coro_sv_2cv (SV *sv)
		333	{
		334	HV *st;
		335	GV *gvp;
		336	return sv_2cv (sv, &st, &gvp, 0);
323	}	337	}
324		338
325	static AV *	339	static AV *
326	coro_clone_padlist (pTHX_ CV *cv)	340	coro_clone_padlist (pTHX_ CV *cv)
327	{	341	{
…		…
446	else	460	else
447	{	461	{
448	#if CORO_PREFER_PERL_FUNCTIONS	462	#if CORO_PREFER_PERL_FUNCTIONS
449	/* this is probably cleaner? but also slower! */	463	/* this is probably cleaner? but also slower! */
450	/* in practise, it seems to be less stable */	464	/* in practise, it seems to be less stable */
451	CV *cp = Perl_cv_clone (cv);	465	CV *cp = Perl_cv_clone (aTHX_ cv);
452	CvPADLIST (cv) = CvPADLIST (cp);	466	CvPADLIST (cv) = CvPADLIST (cp);
453	CvPADLIST (cp) = 0;	467	CvPADLIST (cp) = 0;
454	SvREFCNT_dec (cp);	468	SvREFCNT_dec (cp);
455	#else	469	#else
456	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	470	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
509		523
510	PUTBACK;	524	PUTBACK;
511	}	525	}
512		526
513	slf_frame = c->slf_frame;	527	slf_frame = c->slf_frame;
514	coro_throw = c->throw;	528	CORO_THROW = c->except;
515	}	529	}
516		530
517	static void	531	static void
518	save_perl (pTHX_ Coro__State c)	532	save_perl (pTHX_ Coro__State c)
519	{	533	{
520	c->throw = coro_throw;	534	c->except = CORO_THROW;
521	c->slf_frame = slf_frame;	535	c->slf_frame = slf_frame;
522		536
523	{	537	{
524	dSP;	538	dSP;
525	I32 cxix = cxstack_ix;	539	I32 cxix = cxstack_ix;
…		…
600	* of perl.c:init_stacks, except that it uses less memory	614	* of perl.c:init_stacks, except that it uses less memory
601	* on the (sometimes correct) assumption that coroutines do	615	* on the (sometimes correct) assumption that coroutines do
602	* not usually need a lot of stackspace.	616	* not usually need a lot of stackspace.
603	*/	617	*/
604	#if CORO_PREFER_PERL_FUNCTIONS	618	#if CORO_PREFER_PERL_FUNCTIONS
605	# define coro_init_stacks init_stacks	619	# define coro_init_stacks(thx) init_stacks ()
606	#else	620	#else
607	static void	621	static void
608	coro_init_stacks (pTHX)	622	coro_init_stacks (pTHX)
609	{	623	{
610	PL_curstackinfo = new_stackinfo(32, 8);	624	PL_curstackinfo = new_stackinfo(32, 8);
…		…
857	{	871	{
858	dSP;	872	dSP;
859	UNOP myop;	873	UNOP myop;
860		874
861	Zero (&myop, 1, UNOP);	875	Zero (&myop, 1, UNOP);
862	myop.op_next = Nullop;	876	myop.op_next = Nullop;
		877	myop.op_type = OP_ENTERSUB;
863	myop.op_flags = OPf_WANT_VOID;	878	myop.op_flags = OPf_WANT_VOID;
864		879
865	PUSHMARK (SP);	880	PUSHMARK (SP);
866	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	881	PUSHs ((SV *)coro->startcv);
867	PUTBACK;	882	PUTBACK;
868	PL_op = (OP *)&myop;	883	PL_op = (OP *)&myop;
869	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	884	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870	SPAGAIN;
871	}	885	}
872		886
873	/* this newly created coroutine might be run on an existing cctx which most	887	/* 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.	888	* likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875	*/	889	*/
876	slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */	890	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 */	891	slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878		892
879	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */	893	/* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
		894	coro_setup_op.op_next = PL_op;
880	coro_setup_op.op_type = OP_CUSTOM;	895	coro_setup_op.op_type = OP_CUSTOM;
881	coro_setup_op.op_ppaddr = pp_slf;	896	coro_setup_op.op_ppaddr = pp_slf;
882	coro_setup_op.op_next = PL_op;	897	/* no flags etc. required, as an init function won't be called */
883		898
884	PL_op = (OP *)&coro_setup_op;	899	PL_op = (OP *)&coro_setup_op;
885		900
886	/* copy throw, in case it was set before coro_setup */	901	/* copy throw, in case it was set before coro_setup */
887	coro_throw = coro->throw;	902	CORO_THROW = coro->except;
888	}	903	}
889		904
890	static void	905	static void
891	coro_destruct (pTHX_ struct coro *coro)	906	coro_destruct (pTHX_ struct coro *coro)
892	{	907	{
…		…
916		931
917	SvREFCNT_dec (PL_diehook);	932	SvREFCNT_dec (PL_diehook);
918	SvREFCNT_dec (PL_warnhook);	933	SvREFCNT_dec (PL_warnhook);
919		934
920	SvREFCNT_dec (coro->saved_deffh);	935	SvREFCNT_dec (coro->saved_deffh);
921	SvREFCNT_dec (coro_throw);	936	SvREFCNT_dec (coro->rouse_cb);
922		937
923	coro_destruct_stacks (aTHX);	938	coro_destruct_stacks (aTHX);
924	}	939	}
925		940
926	INLINE void	941	INLINE void
…		…
1013	SAVETMPS;	1028	SAVETMPS;
1014	EXTEND (SP, 3);	1029	EXTEND (SP, 3);
1015	PUSHMARK (SP);	1030	PUSHMARK (SP);
1016	PUSHs (&PL_sv_yes);	1031	PUSHs (&PL_sv_yes);
1017	PUSHs (fullname);	1032	PUSHs (fullname);
1018	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	1033	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019	PUTBACK;	1034	PUTBACK;
1020	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	1035	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);	1036	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1022	SPAGAIN;	1037	SPAGAIN;
1023	FREETMPS;	1038	FREETMPS;
…		…
1070	static int	1085	static int
1071	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)	1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072	{	1087	{
1073	*frame = cctx_ssl_frame;	1088	*frame = cctx_ssl_frame;
1074		1089
1075	return 1; /* execute the restored frame - there must be one */	1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076	}	1091	}
1077		1092
1078	/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */	1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079	static void NOINLINE	1094	static void NOINLINE
1080	cctx_prepare (pTHX_ coro_cctx *cctx)	1095	cctx_prepare (pTHX_ coro_cctx *cctx)
1081	{	1096	{
1082	PL_top_env = &PL_start_env;	1097	PL_top_env = &PL_start_env;
1083		1098
1084	if (cctx->flags & CC_TRACE)	1099	if (cctx->flags & CC_TRACE)
1085	PL_runops = runops_trace;	1100	PL_runops = runops_trace;
1086		1101
1087	/* we already must be in an SLF call, there is no other valid way	1102	/* we already must be executing an SLF op, there is no other valid way
1088	* that can lead to creation of a new cctx */	1103	* that can lead to creation of a new cctx */
1089	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",	1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));	1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091		1106
		1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1092	cctx_ssl_cctx = cctx;	1108	cctx_ssl_cctx = cctx;
1093	cctx_ssl_frame = slf_frame;	1109	cctx_ssl_frame = slf_frame;
1094		1110
1095	slf_frame.prepare = slf_prepare_set_stacklevel;	1111	slf_frame.prepare = slf_prepare_set_stacklevel;
1096	slf_frame.check = slf_check_set_stacklevel;	1112	slf_frame.check = slf_check_set_stacklevel;
…		…
1128	transfer_tail (aTHX);	1144	transfer_tail (aTHX);
1129		1145
1130	/* somebody or something will hit me for both perl_run and PL_restartop */	1146	/* somebody or something will hit me for both perl_run and PL_restartop */
1131	PL_restartop = PL_op;	1147	PL_restartop = PL_op;
1132	perl_run (PL_curinterp);	1148	perl_run (PL_curinterp);
		1149	/*
		1150	* Unfortunately, there is no way to get at the return values of the
		1151	* coro body here, as perl_run destroys these
		1152	*/
1133		1153
1134	/*	1154	/*
1135	* If perl-run returns we assume exit() was being called or the coro	1155	* 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)	1156	* 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	1157	* reason for perl_run to return. We try to exit by jumping to the
…		…
1317	dSTACKLEVEL;	1337	dSTACKLEVEL;
1318		1338
1319	/* sometimes transfer is only called to set idle_sp */	1339	/* sometimes transfer is only called to set idle_sp */
1320	if (expect_false (!next))	1340	if (expect_false (!next))
1321	{	1341	{
1322	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1342	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1323	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1343	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
1324	}	1344	}
1325	else if (expect_true (prev != next))	1345	else if (expect_true (prev != next))
1326	{	1346	{
1327	coro_cctx *prev__cctx;	1347	coro_cctx *prev__cctx;
…		…
1352		1372
1353	prev__cctx = prev->cctx;	1373	prev__cctx = prev->cctx;
1354		1374
1355	/* possibly untie and reuse the cctx */	1375	/* possibly untie and reuse the cctx */
1356	if (expect_true (	1376	if (expect_true (
1357	prev__cctx->idle_sp == (void *)stacklevel	1377	prev__cctx->idle_sp == STACKLEVEL
1358	&& !(prev__cctx->flags & CC_TRACE)	1378	&& !(prev__cctx->flags & CC_TRACE)
1359	&& !force_cctx	1379	&& !force_cctx
1360	))	1380	))
1361	{	1381	{
1362	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */	1382	/* I assume that stacklevel is a stronger indicator than PL_top_env changes */
…		…
1429		1449
1430	coro->slot = 0;	1450	coro->slot = 0;
1431	}	1451	}
1432		1452
1433	cctx_destroy (coro->cctx);	1453	cctx_destroy (coro->cctx);
		1454	SvREFCNT_dec (coro->startcv);
1434	SvREFCNT_dec (coro->args);	1455	SvREFCNT_dec (coro->args);
		1456	SvREFCNT_dec (CORO_THROW);
1435		1457
1436	if (coro->next) coro->next->prev = coro->prev;	1458	if (coro->next) coro->next->prev = coro->prev;
1437	if (coro->prev) coro->prev->next = coro->next;	1459	if (coro->prev) coro->prev->next = coro->next;
1438	if (coro == coro_first) coro_first = coro->next;	1460	if (coro == coro_first) coro_first = coro->next;
1439		1461
…		…
1493		1515
1494	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1516	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1495	TRANSFER (ta, 1);	1517	TRANSFER (ta, 1);
1496	}	1518	}
1497		1519
		1520	/*****************************************************************************/
		1521	/* gensub: simple closure generation utility */
		1522
		1523	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
		1524
		1525	/* create a closure from XS, returns a code reference */
		1526	/* the arg can be accessed via GENSUB_ARG from the callback */
		1527	/* the callback must use dXSARGS/XSRETURN */
		1528	static SV *
		1529	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
		1530	{
		1531	CV cv = (CV )newSV (0);
		1532
		1533	sv_upgrade ((SV *)cv, SVt_PVCV);
		1534
		1535	CvANON_on (cv);
		1536	CvISXSUB_on (cv);
		1537	CvXSUB (cv) = xsub;
		1538	GENSUB_ARG = arg;
		1539
		1540	return newRV_noinc ((SV *)cv);
		1541	}
		1542
1498	/ Coro ******************************************************************/	1543	/ Coro ******************************************************************/
1499		1544
1500	INLINE void	1545	INLINE void
1501	coro_enq (pTHX_ struct coro *coro)	1546	coro_enq (pTHX_ struct coro *coro)
1502	{	1547	{
…		…
1699	if (coro->flags & CF_RUNNING)	1744	if (coro->flags & CF_RUNNING)
1700	PL_runops = RUNOPS_DEFAULT;	1745	PL_runops = RUNOPS_DEFAULT;
1701	else	1746	else
1702	coro->slot->runops = RUNOPS_DEFAULT;	1747	coro->slot->runops = RUNOPS_DEFAULT;
1703	}	1748	}
		1749	}
		1750
		1751	/*****************************************************************************/
		1752	/* rouse callback */
		1753
		1754	#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
		1755
		1756	static void
		1757	coro_rouse_callback (pTHX_ CV *cv)
		1758	{
		1759	dXSARGS;
		1760	SV data = (SV )GENSUB_ARG;
		1761
		1762	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1763	{
		1764	/* first call, set args */
		1765	int i;
		1766	AV *av = newAV ();
		1767	SV *coro = SvRV (data);
		1768
		1769	SvRV_set (data, (SV *)av);
		1770	api_ready (aTHX_ coro);
		1771	SvREFCNT_dec (coro);
		1772
		1773	/* better take a full copy of the arguments */
		1774	while (items--)
		1775	av_store (av, items, newSVsv (ST (items)));
		1776	}
		1777
		1778	XSRETURN_EMPTY;
		1779	}
		1780
		1781	static int
		1782	slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
		1783	{
		1784	SV data = (SV )frame->data;
		1785
		1786	if (CORO_THROW)
		1787	return 0;
		1788
		1789	if (SvTYPE (SvRV (data)) != SVt_PVAV)
		1790	return 1;
		1791
		1792	/* now push all results on the stack */
		1793	{
		1794	dSP;
		1795	AV av = (AV )SvRV (data);
		1796	int i;
		1797
		1798	EXTEND (SP, AvFILLp (av) + 1);
		1799	for (i = 0; i <= AvFILLp (av); ++i)
		1800	PUSHs (sv_2mortal (AvARRAY (av)[i]));
		1801
		1802	/* we have stolen the elements, so ste length to zero and free */
		1803	AvFILLp (av) = -1;
		1804	av_undef (av);
		1805
		1806	PUTBACK;
		1807	}
		1808
		1809	return 0;
		1810	}
		1811
		1812	static void
		1813	slf_init_rouse_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		1814	{
		1815	SV *cb;
		1816
		1817	if (items)
		1818	cb = arg [0];
		1819	else
		1820	{
		1821	struct coro *coro = SvSTATE_current;
		1822
		1823	if (!coro->rouse_cb)
		1824	croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
		1825
		1826	cb = sv_2mortal (coro->rouse_cb);
		1827	coro->rouse_cb = 0;
		1828	}
		1829
		1830	if (!SvROK (cb)
		1831	\|\| SvTYPE (SvRV (cb)) != SVt_PVCV
		1832	\|\| CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
		1833	croak ("Coro::rouse_wait called with illegal callback argument,");
		1834
		1835	{
		1836	CV cv = (CV )SvRV (cb); /* for GENSUB_ARG */
		1837	SV data = (SV )GENSUB_ARG;
		1838
		1839	frame->data = (void *)data;
		1840	frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
		1841	frame->check = slf_check_rouse_wait;
		1842	}
		1843	}
		1844
		1845	static SV *
		1846	coro_new_rouse_cb (pTHX)
		1847	{
		1848	HV hv = (HV )SvRV (coro_current);
		1849	struct coro *coro = SvSTATE_hv (hv);
		1850	SV data = newRV_inc ((SV )hv);
		1851	SV cb = gensub (aTHX_ coro_rouse_callback, (void )data);
		1852
		1853	sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
		1854	SvREFCNT_dec (data); /* magicext increases the refcount */
		1855
		1856	SvREFCNT_dec (coro->rouse_cb);
		1857	coro->rouse_cb = SvREFCNT_inc_NN (cb);
		1858
		1859	return cb;
1704	}	1860	}
1705		1861
1706	/*****************************************************************************/	1862	/*****************************************************************************/
1707	/* schedule-like-function opcode (SLF) */	1863	/* schedule-like-function opcode (SLF) */
1708		1864
…		…
1835	}	1991	}
1836	while (slf_frame.check (aTHX_ &slf_frame));	1992	while (slf_frame.check (aTHX_ &slf_frame));
1837		1993
1838	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */	1994	slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839		1995
		1996	/* exception handling */
		1997	if (expect_false (CORO_THROW))
		1998	{
		1999	SV *exception = sv_2mortal (CORO_THROW);
		2000
		2001	CORO_THROW = 0;
		2002	sv_setsv (ERRSV, exception);
		2003	croak (0);
		2004	}
		2005
1840	/* return value handling - mostly like entersub */	2006	/* return value handling - mostly like entersub */
1841	/* make sure we put something on the stack in scalar context */	2007	/* make sure we put something on the stack in scalar context */
1842	if (GIMME_V == G_SCALAR)	2008	if (GIMME_V == G_SCALAR)
1843	{	2009	{
1844	dSP;	2010	dSP;
…		…
1850	bot [1] = *sp;	2016	bot [1] = *sp;
1851		2017
1852	SP = bot + 1;	2018	SP = bot + 1;
1853		2019
1854	PUTBACK;	2020	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	}	2021	}
1866		2022
1867	return NORMAL;	2023	return NORMAL;
1868	}	2024	}
1869		2025
…		…
1991	PerlIOBuf_get_cnt,	2147	PerlIOBuf_get_cnt,
1992	PerlIOBuf_set_ptrcnt,	2148	PerlIOBuf_set_ptrcnt,
1993	};	2149	};
1994		2150
1995	/*****************************************************************************/	2151	/*****************************************************************************/
		2152	/* Coro::Semaphore & Coro::Signal */
		2153
		2154	static SV *
		2155	coro_waitarray_new (pTHX_ int count)
		2156	{
		2157	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */
		2158	AV *av = newAV ();
		2159	SV **ary;
		2160
		2161	/* unfortunately, building manually saves memory */
		2162	Newx (ary, 2, SV *);
		2163	AvALLOC (av) = ary;
		2164	/AvARRAY (av) = ary;/
		2165	SvPVX ((SV )av) = (char )ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */
		2166	AvMAX (av) = 1;
		2167	AvFILLp (av) = 0;
		2168	ary [0] = newSViv (count);
		2169
		2170	return newRV_noinc ((SV *)av);
		2171	}
		2172
1996	/* Coro::Semaphore */	2173	/* semaphore */
1997		2174
1998	static void	2175	static void
1999	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2176	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000	{	2177	{
2001	SV *count_sv = AvARRAY (av)[0];	2178	SV *count_sv = AvARRAY (av)[0];
…		…
2013	AvARRAY (av)[0] = AvARRAY (av)[1];	2190	AvARRAY (av)[0] = AvARRAY (av)[1];
2014	AvARRAY (av)[1] = count_sv;	2191	AvARRAY (av)[1] = count_sv;
2015	cb = av_shift (av);	2192	cb = av_shift (av);
2016		2193
2017	if (SvOBJECT (cb))	2194	if (SvOBJECT (cb))
		2195	{
2018	api_ready (aTHX_ cb);	2196	api_ready (aTHX_ cb);
2019	else	2197	--count;
2020	croak ("callbacks not yet supported");	2198	}
		2199	else if (SvTYPE (cb) == SVt_PVCV)
		2200	{
		2201	dSP;
		2202	PUSHMARK (SP);
		2203	XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
		2204	PUTBACK;
		2205	call_sv (cb, G_VOID \| G_DISCARD \| G_EVAL \| G_KEEPERR);
		2206	}
2021		2207
2022	SvREFCNT_dec (cb);	2208	SvREFCNT_dec (cb);
2023
2024	--count;
2025	}	2209	}
2026	}	2210	}
2027		2211
2028	static void	2212	static void
2029	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2213	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2031	/* call $sem->adjust (0) to possibly wake up some other waiters */	2215	/* call $sem->adjust (0) to possibly wake up some other waiters */
2032	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2216	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033	}	2217	}
2034		2218
2035	static int	2219	static int
2036	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2220	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037	{	2221	{
2038	AV av = (AV )frame->data;	2222	AV av = (AV )frame->data;
2039	SV *count_sv = AvARRAY (av)[0];	2223	SV *count_sv = AvARRAY (av)[0];
2040		2224
		2225	/* if we are about to throw, don't actually acquire the lock, just throw */
		2226	if (CORO_THROW)
		2227	return 0;
2041	if (SvIVX (count_sv) > 0)	2228	else if (SvIVX (count_sv) > 0)
2042	{	2229	{
2043	SvSTATE_current->on_destroy = 0;	2230	SvSTATE_current->on_destroy = 0;
		2231
		2232	if (acquire)
2044	SvIVX (count_sv) = SvIVX (count_sv) - 1;	2233	SvIVX (count_sv) = SvIVX (count_sv) - 1;
		2234	else
		2235	coro_semaphore_adjust (aTHX_ av, 0);
		2236
2045	return 0;	2237	return 0;
2046	}	2238	}
2047	else	2239	else
2048	{	2240	{
2049	int i;	2241	int i;
…		…
2058	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2250	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059	return 1;	2251	return 1;
2060	}	2252	}
2061	}	2253	}
2062		2254
2063	static void	2255	static int
		2256	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
		2257	{
		2258	return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
		2259	}
		2260
		2261	static int
		2262	slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
		2263	{
		2264	return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
		2265	}
		2266
		2267	static void
2064	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	2268	slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2065	{	2269	{
2066	AV av = (AV )SvRV (arg [0]);	2270	AV av = (AV )SvRV (arg [0]);
2067		2271
2068	if (SvIVX (AvARRAY (av)[0]) > 0)	2272	if (SvIVX (AvARRAY (av)[0]) > 0)
2069	{	2273	{
2070	frame->data = (void *)av;	2274	frame->data = (void *)av;
2071	frame->prepare = prepare_nop;	2275	frame->prepare = prepare_nop;
2072	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073	}	2276	}
2074	else	2277	else
2075	{	2278	{
2076	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2279	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077		2280
2078	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2281	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2079	frame->prepare = prepare_schedule;	2282	frame->prepare = prepare_schedule;
2080		2283
2081	/* to avoid race conditions when a woken-up coro gets terminated */	2284	/* to avoid race conditions when a woken-up coro gets terminated */
2082	/* we arrange for a temporary on_destroy that calls adjust (0) */	2285	/* 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;	2286	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085	}	2287	}
		2288	}
2086		2289
		2290	static void
		2291	slf_init_semaphore_down (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2292	{
		2293	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087	frame->check = slf_check_semaphore_down;	2294	frame->check = slf_check_semaphore_down;
2088
2089	}	2295	}
2090		2296
2091	/*****************************************************************************/	2297	static void
2092	/* gensub: simple closure generation utility */	2298	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	{	2299	{
2102	CV cv = (CV )newSV (0);	2300	if (items >= 2)
		2301	{
		2302	/* callback form */
		2303	AV av = (AV )SvRV (arg [0]);
		2304	CV *cb_cv = coro_sv_2cv (arg [1]);
2103		2305
2104	sv_upgrade ((SV *)cv, SVt_PVCV);	2306	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2105		2307
2106	CvANON_on (cv);	2308	if (SvIVX (AvARRAY (av)[0]) > 0)
2107	CvISXSUB_on (cv);	2309	coro_semaphore_adjust (aTHX_ av, 0);
2108	CvXSUB (cv) = xsub;
2109	GENSUB_ARG = arg;
2110		2310
2111	return newRV_noinc ((SV *)cv);	2311	frame->prepare = prepare_nop;
		2312	frame->check = slf_check_nop;
		2313	}
		2314	else
		2315	{
		2316	slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
		2317	frame->check = slf_check_semaphore_wait;
		2318	}
		2319	}
		2320
		2321	/* signal */
		2322
		2323	static void
		2324	coro_signal_wake (pTHX_ AV *av, int count)
		2325	{
		2326	SvIVX (AvARRAY (av)[0]) = 0;
		2327
		2328	/* now signal count waiters */
		2329	while (count > 0 && AvFILLp (av) > 0)
		2330	{
		2331	SV *cb;
		2332
		2333	/* swap first two elements so we can shift a waiter */
		2334	cb = AvARRAY (av)[0];
		2335	AvARRAY (av)[0] = AvARRAY (av)[1];
		2336	AvARRAY (av)[1] = cb;
		2337
		2338	cb = av_shift (av);
		2339
		2340	api_ready (aTHX_ cb);
		2341	sv_setiv (cb, 0); /* signal waiter */
		2342	SvREFCNT_dec (cb);
		2343
		2344	--count;
		2345	}
		2346	}
		2347
		2348	static int
		2349	slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
		2350	{
		2351	/* if we are about to throw, also stop waiting */
		2352	return SvROK ((SV *)frame->data) && !CORO_THROW;
		2353	}
		2354
		2355	static void
		2356	slf_init_signal_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
		2357	{
		2358	AV av = (AV )SvRV (arg [0]);
		2359
		2360	if (SvIVX (AvARRAY (av)[0]))
		2361	{
		2362	SvIVX (AvARRAY (av)[0]) = 0;
		2363	frame->prepare = prepare_nop;
		2364	frame->check = slf_check_nop;
		2365	}
		2366	else
		2367	{
		2368	SV waiter = newRV_inc (SvRV (coro_current)); / owned by signal av */
		2369
		2370	av_push (av, waiter);
		2371
		2372	frame->data = (void )sv_2mortal (SvREFCNT_inc_NN (waiter)); / owned by process */
		2373	frame->prepare = prepare_schedule;
		2374	frame->check = slf_check_signal_wait;
		2375	}
2112	}	2376	}
2113		2377
2114	/*****************************************************************************/	2378	/*****************************************************************************/
2115	/* Coro::AIO */	2379	/* Coro::AIO */
2116		2380
…		…
2165		2429
2166	static int	2430	static int
2167	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2431	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168	{	2432	{
2169	AV state = (AV )frame->data;	2433	AV state = (AV )frame->data;
		2434
		2435	/* if we are about to throw, return early */
		2436	/* this does not cancel the aio request, but at least */
		2437	/* it quickly returns */
		2438	if (CORO_THROW)
		2439	return 0;
2170		2440
2171	/* one element that is an RV? repeat! */	2441	/* one element that is an RV? repeat! */
2172	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2442	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173	return 1;	2443	return 1;
2174		2444
…		…
2345	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2615	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2346	}	2616	}
2347		2617
2348	SV *	2618	SV *
2349	new (char *klass, ...)	2619	new (char *klass, ...)
		2620	ALIAS:
		2621	Coro::new = 1
2350	CODE:	2622	CODE:
2351	{	2623	{
2352	struct coro *coro;	2624	struct coro *coro;
2353	MAGIC *mg;	2625	MAGIC *mg;
2354	HV *hv;	2626	HV *hv;
		2627	CV *cb;
2355	int i;	2628	int i;
		2629
		2630	if (items > 1)
		2631	{
		2632	cb = coro_sv_2cv (ST (1));
		2633
		2634	if (!ix)
		2635	{
		2636	if (CvISXSUB (cb))
		2637	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2638
		2639	if (!CvROOT (cb))
		2640	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2641	}
		2642	}
2356		2643
2357	Newz (0, coro, 1, struct coro);	2644	Newz (0, coro, 1, struct coro);
2358	coro->args = newAV ();	2645	coro->args = newAV ();
2359	coro->flags = CF_NEW;	2646	coro->flags = CF_NEW;
2360		2647
…		…
2365	coro->hv = hv = newHV ();	2652	coro->hv = hv = newHV ();
2366	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2653	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2367	mg->mg_flags \|= MGf_DUP;	2654	mg->mg_flags \|= MGf_DUP;
2368	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2655	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369		2656
		2657	if (items > 1)
		2658	{
2370	av_extend (coro->args, items - 1);	2659	av_extend (coro->args, items - 1 + ix);
		2660
		2661	if (ix)
		2662	{
		2663	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2664	cb = cv_coro_run;
		2665	}
		2666
		2667	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2668
2371	for (i = 1; i < items; i++)	2669	for (i = 2; i < items; i++)
2372	av_push (coro->args, newSVsv (ST (i)));	2670	av_push (coro->args, newSVsv (ST (i)));
		2671	}
2373	}	2672	}
2374	OUTPUT:	2673	OUTPUT:
2375	RETVAL	2674	RETVAL
2376		2675
2377	void	2676	void
…		…
2506	throw (Coro::State self, SV *throw = &PL_sv_undef)	2805	throw (Coro::State self, SV *throw = &PL_sv_undef)
2507	PROTOTYPE: $;$	2806	PROTOTYPE: $;$
2508	CODE:	2807	CODE:
2509	{	2808	{
2510	struct coro *current = SvSTATE_current;	2809	struct coro *current = SvSTATE_current;
2511	SV **throwp = self == current ? &coro_throw : &self->throw;	2810	SV **throwp = self == current ? &CORO_THROW : &self->except;
2512	SvREFCNT_dec (*throwp);	2811	SvREFCNT_dec (*throwp);
2513	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2812	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2514	}	2813	}
2515		2814
2516	void	2815	void
…		…
2578	int i;	2877	int i;
2579		2878
2580	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2879	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2880	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2881	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583		2882	cv_coro_run = get_cv (aTHX_ "Coro::_terminate", GV_ADD);
2584	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2883	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);
2585	SvREADONLY_on (coro_current);	2884	SvREADONLY_on (coro_current);
2586		2885
2587	coro_stash = gv_stashpv ("Coro", TRUE);	2886	coro_stash = gv_stashpv ("Coro", TRUE);
2588		2887
2589	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2888	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
2605	coroapi.ready = api_ready;	2904	coroapi.ready = api_ready;
2606	coroapi.is_ready = api_is_ready;	2905	coroapi.is_ready = api_is_ready;
2607	coroapi.nready = coro_nready;	2906	coroapi.nready = coro_nready;
2608	coroapi.current = coro_current;	2907	coroapi.current = coro_current;
2609		2908
2610	GCoroAPI = &coroapi;	2909	/GCoroAPI = &coroapi;/
2611	sv_setiv (sv, (IV)&coroapi);	2910	sv_setiv (sv, (IV)&coroapi);
2612	SvREADONLY_on (sv);	2911	SvREADONLY_on (sv);
2613	}	2912	}
2614	}	2913	}
2615		2914
…		…
2751	api_trace (aTHX_ coro_current, 0);	3050	api_trace (aTHX_ coro_current, 0);
2752		3051
2753	av_push (av_async_pool, newSVsv (coro_current));	3052	av_push (av_async_pool, newSVsv (coro_current));
2754	}	3053	}
2755		3054
		3055	SV *
		3056	rouse_cb ()
		3057	PROTOTYPE:
		3058	CODE:
		3059	RETVAL = coro_new_rouse_cb (aTHX);
		3060	OUTPUT:
		3061	RETVAL
		3062
		3063	void
		3064	rouse_wait (...)
		3065	PROTOTYPE: ;$
		3066	PPCODE:
		3067	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3068
2756		3069
2757	MODULE = Coro::State PACKAGE = PerlIO::cede	3070	MODULE = Coro::State PACKAGE = PerlIO::cede
2758		3071
2759	BOOT:	3072	BOOT:
2760	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3073	PerlIO_define_layer (aTHX_ &PerlIO_cede);
2761		3074
2762		3075
2763	MODULE = Coro::State PACKAGE = Coro::Semaphore	3076	MODULE = Coro::State PACKAGE = Coro::Semaphore
2764		3077
2765	SV *	3078	SV *
2766	new (SV klass, SV count_ = 0)	3079	new (SV klass, SV count = 0)
2767	CODE:	3080	CODE:
2768	{	3081	RETVAL = sv_bless (
2769	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3082	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2770	AV *av = newAV ();	3083	GvSTASH (CvGV (cv))
2771	SV **ary;	3084	);
		3085	OUTPUT:
		3086	RETVAL
2772		3087
2773	/* unfortunately, building manually saves memory */	3088	# helper for Coro::Channel
2774	Newx (ary, 2, SV *);	3089	SV *
2775	AvALLOC (av) = ary;	3090	_alloc (int count)
2776	AvARRAY (av) = ary;	3091	CODE:
2777	AvMAX (av) = 1;	3092	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:	3093	OUTPUT:
2784	RETVAL	3094	RETVAL
2785		3095
2786	SV *	3096	SV *
2787	count (SV *self)	3097	count (SV *self)
…		…
2796	adjust = 1	3106	adjust = 1
2797	CODE:	3107	CODE:
2798	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3108	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799		3109
2800	void	3110	void
2801	down (SV *self)	3111	down (...)
2802	CODE:	3112	CODE:
2803	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3113	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3114
		3115	void
		3116	wait (...)
		3117	CODE:
		3118	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804		3119
2805	void	3120	void
2806	try (SV *self)	3121	try (SV *self)
2807	PPCODE:	3122	PPCODE:
2808	{	3123	{
…		…
2820	XSRETURN_NO;	3135	XSRETURN_NO;
2821	}	3136	}
2822		3137
2823	void	3138	void
2824	waiters (SV *self)	3139	waiters (SV *self)
2825	CODE:	3140	PPCODE:
2826	{	3141	{
2827	AV av = (AV )SvRV (self);	3142	AV av = (AV )SvRV (self);
		3143	int wcount = AvFILLp (av) + 1 - 1;
2828		3144
2829	if (GIMME_V == G_SCALAR)	3145	if (GIMME_V == G_SCALAR)
2830	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3146	XPUSHs (sv_2mortal (newSViv (wcount)));
2831	else	3147	else
2832	{	3148	{
2833	int i;	3149	int i;
2834	EXTEND (SP, AvFILLp (av) + 1 - 1);	3150	EXTEND (SP, wcount);
2835	for (i = 1; i <= AvFILLp (av); ++i)	3151	for (i = 1; i <= wcount; ++i)
2836	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));	3152	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837	}	3153	}
2838	}	3154	}
		3155
		3156	MODULE = Coro::State PACKAGE = Coro::Signal
		3157
		3158	SV *
		3159	new (SV *klass)
		3160	CODE:
		3161	RETVAL = sv_bless (
		3162	coro_waitarray_new (aTHX_ 0),
		3163	GvSTASH (CvGV (cv))
		3164	);
		3165	OUTPUT:
		3166	RETVAL
		3167
		3168	void
		3169	wait (...)
		3170	CODE:
		3171	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3172
		3173	void
		3174	broadcast (SV *self)
		3175	CODE:
		3176	{
		3177	AV av = (AV )SvRV (self);
		3178	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3179	}
		3180
		3181	void
		3182	send (SV *self)
		3183	CODE:
		3184	{
		3185	AV av = (AV )SvRV (self);
		3186
		3187	if (AvFILLp (av))
		3188	coro_signal_wake (aTHX_ av, 1);
		3189	else
		3190	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3191	}
		3192
		3193	IV
		3194	awaited (SV *self)
		3195	CODE:
		3196	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3197	OUTPUT:
		3198	RETVAL
2839		3199
2840		3200
2841	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3201	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842		3202
2843	BOOT:	3203	BOOT:
…		…
2871		3231
2872	void	3232	void
2873	_register (char target, char proto, SV *req)	3233	_register (char target, char proto, SV *req)
2874	CODE:	3234	CODE:
2875	{	3235	{
2876	HV *st;
2877	GV *gvp;
2878	CV *req_cv = sv_2cv (req, &st, &gvp, 0);	3236	CV *req_cv = coro_sv_2cv (req);
2879	/* newXSproto doesn't return the CV on 5.8 */	3237	/* newXSproto doesn't return the CV on 5.8 */
2880	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3238	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881	sv_setpv ((SV *)slf_cv, proto);	3239	sv_setpv ((SV *)slf_cv, proto);
2882	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3240	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883	}	3241	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs. Revision 1.310 by root, Wed Nov 19 16:01:32 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs.
Revision 1.310 by root, Wed Nov 19 16:01:32 2008 UTC