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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.287 by root, Mon Nov 17 07:03:12 2008 UTC vs.
Revision 1.311 by root, Thu Nov 20 01:12:08 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
…		…
95	# define GV_NOTQUAL 0	95	# define GV_NOTQUAL 0
96	#endif	96	#endif
97	#ifndef newSV	97	#ifndef newSV
98	# define newSV(l) NEWSV(0,l)	98	# define newSV(l) NEWSV(0,l)
99	#endif	99	#endif
		100	#ifndef CvISXSUB_on
		101	# define CvISXSUB_on(cv) (void)cv
		102	#endif
100		103
101	/* 5.8.7 */	104	/* 5.8.7 */
102	#ifndef SvRV_set	105	#ifndef SvRV_set
103	# define SvRV_set(s,v) SvRV(s) = (v)	106	# define SvRV_set(s,v) SvRV(s) = (v)
104	#endif	107	#endif
…		…
117	#endif	120	#endif
118		121
119	/* 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
120	* portable way as possible. */	123	* portable way as possible. */
121	#if __GNUC__ >= 4	124	#if __GNUC__ >= 4
		125	# define dSTACKLEVEL int stacklevel_dummy
122	# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0)	126	# define STACKLEVEL __builtin_frame_address (0)
123	#else	127	#else
124	# define dSTACKLEVEL volatile void stacklevel = (volatile void )&stacklevel	128	# define dSTACKLEVEL volatile void *stacklevel
		129	# define STACKLEVEL ((void *)&stacklevel)
125	#endif	130	#endif
126		131
127	#define IN_DESTRUCT (PL_main_cv == Nullcv)	132	#define IN_DESTRUCT (PL_main_cv == Nullcv)
128		133
129	#if __GNUC__ >= 3	134	#if __GNUC__ >= 3
…		…
140	#define expect_true(expr) expect ((expr) != 0, 1)	145	#define expect_true(expr) expect ((expr) != 0, 1)
141		146
142	#define NOINLINE attribute ((noinline))	147	#define NOINLINE attribute ((noinline))
143		148
144	#include "CoroAPI.h"	149	#include "CoroAPI.h"
		150	#define GCoroAPI (&coroapi) /* very sneaky */
145		151
146	#ifdef USE_ITHREADS	152	#ifdef USE_ITHREADS
147	# if CORO_PTHREAD	153	# if CORO_PTHREAD
148	static void *coro_thx;	154	static void *coro_thx;
149	# endif	155	# endif
150	#endif	156	#endif
151		157
152	static double (nvtime)(); / so why doesn't it take void? */	158	static double (nvtime)(); / so why doesn't it take void? */
		159
		160	/* we hijack an hopefully unused CV flag for our purposes */
		161	#define CVf_SLF 0x4000
		162	static OP *pp_slf (pTHX);
153		163
154	static U32 cctx_gen;	164	static U32 cctx_gen;
155	static size_t cctx_stacksize = CORO_STACKSIZE;	165	static size_t cctx_stacksize = CORO_STACKSIZE;
156	static struct CoroAPI coroapi;	166	static struct CoroAPI coroapi;
157	static AV main_mainstack; / used to differentiate between $main and others */	167	static AV main_mainstack; / used to differentiate between $main and others */
…		…
236	/* state data */	246	/* state data */
237	struct CoroSLF slf_frame; /* saved slf frame */	247	struct CoroSLF slf_frame; /* saved slf frame */
238	AV *mainstack;	248	AV *mainstack;
239	perl_slots slot; / basically the saved sp */	249	perl_slots slot; / basically the saved sp */
240		250
		251	CV startcv; / the CV to execute */
241	AV args; / data associated with this coroutine (initial args) */	252	AV args; / data associated with this coroutine (initial args) */
242	int refcnt; /* coroutines are refcounted, yes */	253	int refcnt; /* coroutines are refcounted, yes */
243	int flags; /* CF_ flags */	254	int flags; /* CF_ flags */
244	HV hv; / the perl hash associated with this coro, if any */	255	HV hv; / the perl hash associated with this coro, if any */
245	void (on_destroy)(pTHX_ struct coro coro);	256	void (on_destroy)(pTHX_ struct coro coro);
246		257
247	/* statistics */	258	/* statistics */
248	int usecount; /* number of transfers to this coro */	259	int usecount; /* number of transfers to this coro */
249		260
250	/* coro process data */	261	/* coro process data */
251	int prio;	262	int prio;
252	SV throw; / exception to be thrown */	263	SV except; / exception to be thrown */
		264	SV *rouse_cb;
253		265
254	/* async_pool */	266	/* async_pool */
255	SV *saved_deffh;	267	SV *saved_deffh;
256		268
257	/* linked list */	269	/* linked list */
…		…
263		275
264	/* the following variables are effectively part of the perl context */	276	/* the following variables are effectively part of the perl context */
265	/* and get copied between struct coro and these variables */	277	/* and get copied between struct coro and these variables */
266	/* the mainr easonw e don't support windows process emulation */	278	/* the mainr easonw e don't support windows process emulation */
267	static struct CoroSLF slf_frame; /* the current slf frame */	279	static struct CoroSLF slf_frame; /* the current slf frame */
268	static SV *coro_throw;
269		280
270	/ Coro ******************************************************************/	281	/ Coro ******************************************************************/
271		282
272	#define PRIO_MAX 3	283	#define PRIO_MAX 3
273	#define PRIO_HIGH 1	284	#define PRIO_HIGH 1
…		…
278		289
279	/* for Coro.pm */	290	/* for Coro.pm */
280	static SV *coro_current;	291	static SV *coro_current;
281	static SV *coro_readyhook;	292	static SV *coro_readyhook;
282	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;
283	static struct coro *coro_first;	295	static struct coro *coro_first;
284	#define coro_nready coroapi.nready	296	#define coro_nready coroapi.nready
285		297
286	/ lowlevel stuff ********************************************************/	298	/ lowlevel stuff ********************************************************/
287		299
…		…
311	#if PERL_VERSION_ATLEAST (5,10,0)	323	#if PERL_VERSION_ATLEAST (5,10,0)
312	/* 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 */
313	get_hv (name, create);	325	get_hv (name, create);
314	#endif	326	#endif
315	return get_hv (name, create);	327	return get_hv (name, create);
		328	}
		329
		330	/* may croak */
		331	INLINE CV *
		332	coro_sv_2cv (pTHX_ SV *sv)
		333	{
		334	HV *st;
		335	GV *gvp;
		336	return sv_2cv (sv, &st, &gvp, 0);
316	}	337	}
317		338
318	static AV *	339	static AV *
319	coro_clone_padlist (pTHX_ CV *cv)	340	coro_clone_padlist (pTHX_ CV *cv)
320	{	341	{
…		…
439	else	460	else
440	{	461	{
441	#if CORO_PREFER_PERL_FUNCTIONS	462	#if CORO_PREFER_PERL_FUNCTIONS
442	/* this is probably cleaner? but also slower! */	463	/* this is probably cleaner? but also slower! */
443	/* in practise, it seems to be less stable */	464	/* in practise, it seems to be less stable */
444	CV *cp = Perl_cv_clone (cv);	465	CV *cp = Perl_cv_clone (aTHX_ cv);
445	CvPADLIST (cv) = CvPADLIST (cp);	466	CvPADLIST (cv) = CvPADLIST (cp);
446	CvPADLIST (cp) = 0;	467	CvPADLIST (cp) = 0;
447	SvREFCNT_dec (cp);	468	SvREFCNT_dec (cp);
448	#else	469	#else
449	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	470	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
502		523
503	PUTBACK;	524	PUTBACK;
504	}	525	}
505		526
506	slf_frame = c->slf_frame;	527	slf_frame = c->slf_frame;
507	coro_throw = c->throw;	528	CORO_THROW = c->except;
508	}	529	}
509		530
510	static void	531	static void
511	save_perl (pTHX_ Coro__State c)	532	save_perl (pTHX_ Coro__State c)
512	{	533	{
513	c->throw = coro_throw;	534	c->except = CORO_THROW;
514	c->slf_frame = slf_frame;	535	c->slf_frame = slf_frame;
515		536
516	{	537	{
517	dSP;	538	dSP;
518	I32 cxix = cxstack_ix;	539	I32 cxix = cxstack_ix;
…		…
593	* of perl.c:init_stacks, except that it uses less memory	614	* of perl.c:init_stacks, except that it uses less memory
594	* on the (sometimes correct) assumption that coroutines do	615	* on the (sometimes correct) assumption that coroutines do
595	* not usually need a lot of stackspace.	616	* not usually need a lot of stackspace.
596	*/	617	*/
597	#if CORO_PREFER_PERL_FUNCTIONS	618	#if CORO_PREFER_PERL_FUNCTIONS
598	# define coro_init_stacks init_stacks	619	# define coro_init_stacks(thx) init_stacks ()
599	#else	620	#else
600	static void	621	static void
601	coro_init_stacks (pTHX)	622	coro_init_stacks (pTHX)
602	{	623	{
603	PL_curstackinfo = new_stackinfo(32, 8);	624	PL_curstackinfo = new_stackinfo(32, 8);
…		…
811	slf_check_nop (pTHX_ struct CoroSLF *frame)	832	slf_check_nop (pTHX_ struct CoroSLF *frame)
812	{	833	{
813	return 0;	834	return 0;
814	}	835	}
815		836
		837	static UNOP coro_setup_op;
		838
816	static void NOINLINE /* noinline to keep it out of the transfer fast path */	839	static void NOINLINE /* noinline to keep it out of the transfer fast path */
817	coro_setup (pTHX_ struct coro *coro)	840	coro_setup (pTHX_ struct coro *coro)
818	{	841	{
819	/*	842	/*
820	* emulate part of the perl startup here.	843	* emulate part of the perl startup here.
…		…
848	{	871	{
849	dSP;	872	dSP;
850	UNOP myop;	873	UNOP myop;
851		874
852	Zero (&myop, 1, UNOP);	875	Zero (&myop, 1, UNOP);
853	myop.op_next = Nullop;	876	myop.op_next = Nullop;
		877	myop.op_type = OP_ENTERSUB;
854	myop.op_flags = OPf_WANT_VOID;	878	myop.op_flags = OPf_WANT_VOID;
855		879
856	PUSHMARK (SP);	880	PUSHMARK (SP);
857	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	881	PUSHs ((SV *)coro->startcv);
858	PUTBACK;	882	PUTBACK;
859	PL_op = (OP *)&myop;	883	PL_op = (OP *)&myop;
860	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	884	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
861	SPAGAIN;
862	}	885	}
863		886
864	/* 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
865	* 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.
866	*/	889	*/
867	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 */
868	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 */
869		892
870	coro_throw = coro->throw;	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;
		895	coro_setup_op.op_type = OP_CUSTOM;
		896	coro_setup_op.op_ppaddr = pp_slf;
		897	/* no flags etc. required, as an init function won't be called */
		898
		899	PL_op = (OP *)&coro_setup_op;
		900
		901	/* copy throw, in case it was set before coro_setup */
		902	CORO_THROW = coro->except;
871	}	903	}
872		904
873	static void	905	static void
874	coro_destruct (pTHX_ struct coro *coro)	906	coro_destruct (pTHX_ struct coro *coro)
875	{	907	{
…		…
899		931
900	SvREFCNT_dec (PL_diehook);	932	SvREFCNT_dec (PL_diehook);
901	SvREFCNT_dec (PL_warnhook);	933	SvREFCNT_dec (PL_warnhook);
902		934
903	SvREFCNT_dec (coro->saved_deffh);	935	SvREFCNT_dec (coro->saved_deffh);
904	SvREFCNT_dec (coro_throw);	936	SvREFCNT_dec (coro->rouse_cb);
905		937
906	coro_destruct_stacks (aTHX);	938	coro_destruct_stacks (aTHX);
907	}	939	}
908		940
909	INLINE void	941	INLINE void
…		…
996	SAVETMPS;	1028	SAVETMPS;
997	EXTEND (SP, 3);	1029	EXTEND (SP, 3);
998	PUSHMARK (SP);	1030	PUSHMARK (SP);
999	PUSHs (&PL_sv_yes);	1031	PUSHs (&PL_sv_yes);
1000	PUSHs (fullname);	1032	PUSHs (fullname);
1001	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);
1002	PUTBACK;	1034	PUTBACK;
1003	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);
1004	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);
1005	SPAGAIN;	1037	SPAGAIN;
1006	FREETMPS;	1038	FREETMPS;
…		…
1038		1070
1039	TAINT_NOT;	1071	TAINT_NOT;
1040	return 0;	1072	return 0;
1041	}	1073	}
1042		1074
		1075	static struct coro_cctx *cctx_ssl_cctx;
		1076	static struct CoroSLF cctx_ssl_frame;
		1077
1043	static void	1078	static void
1044	prepare_set_stacklevel (struct coro_transfer_args ta, struct coro_cctx cctx)	1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1045	{	1080	{
1046	ta->prev = (struct coro *)cctx;	1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1047	ta->next = 0;	1082	ta->next = 0;
1048	}	1083	}
1049		1084
1050	/* inject a fake call to Coro::State::_cctx_init into the execution */	1085	static int
1051	/* _cctx_init should be careful, as it could be called at almost any time */	1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1052	/* during execution of a perl program */	1087	{
1053	/* also initialises PL_top_env */	1088	*frame = cctx_ssl_frame;
		1089
		1090	return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
		1091	}
		1092
		1093	/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1054	static void NOINLINE	1094	static void NOINLINE
1055	cctx_prepare (pTHX_ coro_cctx *cctx)	1095	cctx_prepare (pTHX_ coro_cctx *cctx)
1056	{	1096	{
1057	dSP;
1058	UNOP myop;
1059
1060	PL_top_env = &PL_start_env;	1097	PL_top_env = &PL_start_env;
1061		1098
1062	if (cctx->flags & CC_TRACE)	1099	if (cctx->flags & CC_TRACE)
1063	PL_runops = runops_trace;	1100	PL_runops = runops_trace;
1064		1101
1065	Zero (&myop, 1, UNOP);	1102	/* we already must be executing an SLF op, there is no other valid way
1066	myop.op_next = PL_op;	1103	* that can lead to creation of a new cctx */
1067	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	1104	assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
		1105	slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1068		1106
1069	PUSHMARK (SP);	1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1070	EXTEND (SP, 2);	1108	cctx_ssl_cctx = cctx;
1071	PUSHs (sv_2mortal (newSViv ((IV)cctx)));	1109	cctx_ssl_frame = slf_frame;
1072	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1110
1073	PUTBACK;	1111	slf_frame.prepare = slf_prepare_set_stacklevel;
1074	PL_op = (OP *)&myop;	1112	slf_frame.check = slf_check_set_stacklevel;
1075	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1076	SPAGAIN;
1077	}	1113	}
1078		1114
1079	/* the tail of transfer: execute stuff we can only do after a transfer */	1115	/* the tail of transfer: execute stuff we can only do after a transfer */
1080	INLINE void	1116	INLINE void
1081	transfer_tail (pTHX)	1117	transfer_tail (pTHX)
…		…
1108	transfer_tail (aTHX);	1144	transfer_tail (aTHX);
1109		1145
1110	/* 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 */
1111	PL_restartop = PL_op;	1147	PL_restartop = PL_op;
1112	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	*/
1113		1153
1114	/*	1154	/*
1115	* 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
1116	* 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)
1117	* 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
…		…
1297	dSTACKLEVEL;	1337	dSTACKLEVEL;
1298		1338
1299	/* sometimes transfer is only called to set idle_sp */	1339	/* sometimes transfer is only called to set idle_sp */
1300	if (expect_false (!next))	1340	if (expect_false (!next))
1301	{	1341	{
1302	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1342	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1303	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 */
1304	}	1344	}
1305	else if (expect_true (prev != next))	1345	else if (expect_true (prev != next))
1306	{	1346	{
1307	coro_cctx *prev__cctx;	1347	coro_cctx *prev__cctx;
…		…
1332		1372
1333	prev__cctx = prev->cctx;	1373	prev__cctx = prev->cctx;
1334		1374
1335	/* possibly untie and reuse the cctx */	1375	/* possibly untie and reuse the cctx */
1336	if (expect_true (	1376	if (expect_true (
1337	prev__cctx->idle_sp == (void *)stacklevel	1377	prev__cctx->idle_sp == STACKLEVEL
1338	&& !(prev__cctx->flags & CC_TRACE)	1378	&& !(prev__cctx->flags & CC_TRACE)
1339	&& !force_cctx	1379	&& !force_cctx
1340	))	1380	))
1341	{	1381	{
1342	/* 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 */
…		…
1409		1449
1410	coro->slot = 0;	1450	coro->slot = 0;
1411	}	1451	}
1412		1452
1413	cctx_destroy (coro->cctx);	1453	cctx_destroy (coro->cctx);
		1454	SvREFCNT_dec (coro->startcv);
1414	SvREFCNT_dec (coro->args);	1455	SvREFCNT_dec (coro->args);
		1456	SvREFCNT_dec (CORO_THROW);
1415		1457
1416	if (coro->next) coro->next->prev = coro->prev;	1458	if (coro->next) coro->next->prev = coro->prev;
1417	if (coro->prev) coro->prev->next = coro->next;	1459	if (coro->prev) coro->prev->next = coro->next;
1418	if (coro == coro_first) coro_first = coro->next;	1460	if (coro == coro_first) coro_first = coro->next;
1419		1461
…		…
1473		1515
1474	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1516	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1475	TRANSFER (ta, 1);	1517	TRANSFER (ta, 1);
1476	}	1518	}
1477		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
1478	/ Coro ******************************************************************/	1543	/ Coro ******************************************************************/
1479		1544
1480	INLINE void	1545	INLINE void
1481	coro_enq (pTHX_ struct coro *coro)	1546	coro_enq (pTHX_ struct coro *coro)
1482	{	1547	{
…		…
1525	ENTER;	1590	ENTER;
1526	SAVETMPS;	1591	SAVETMPS;
1527		1592
1528	PUSHMARK (SP);	1593	PUSHMARK (SP);
1529	PUTBACK;	1594	PUTBACK;
1530	call_sv (sv_hook, G_DISCARD);	1595	call_sv (sv_hook, G_VOID \| G_DISCARD);
1531	SPAGAIN;
1532		1596
1533	FREETMPS;	1597	FREETMPS;
1534	LEAVE;	1598	LEAVE;
1535	}	1599	}
1536		1600
…		…
1563	ENTER;	1627	ENTER;
1564	SAVETMPS;	1628	SAVETMPS;
1565		1629
1566	PUSHMARK (SP);	1630	PUSHMARK (SP);
1567	PUTBACK;	1631	PUTBACK;
1568	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1632	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);
1569	SPAGAIN;
1570		1633
1571	FREETMPS;	1634	FREETMPS;
1572	LEAVE;	1635	LEAVE;
1573	continue;	1636	continue;
1574	}	1637	}
…		…
1684	coro->slot->runops = RUNOPS_DEFAULT;	1747	coro->slot->runops = RUNOPS_DEFAULT;
1685	}	1748	}
1686	}	1749	}
1687		1750
1688	/*****************************************************************************/	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;
		1860	}
		1861
		1862	/*****************************************************************************/
1689	/* schedule-like-function opcode (SLF) */	1863	/* schedule-like-function opcode (SLF) */
1690		1864
1691	static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */	1865	static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1692	static const CV *slf_cv;	1866	static const CV *slf_cv;
1693	static SV **slf_argv;	1867	static SV **slf_argv;
…		…
1714		1888
1715	RETURNOP (slf_restore.op_first);	1889	RETURNOP (slf_restore.op_first);
1716	}	1890	}
1717		1891
1718	static void	1892	static void
1719	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1720	{
1721	prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1722	}
1723
1724	static void
1725	slf_init_set_stacklevel (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1726	{
1727	assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1728
1729	frame->prepare = slf_prepare_set_stacklevel;
1730	frame->check = slf_check_nop;
1731	frame->data = (void *)SvIV (arg [0]);
1732	}
1733
1734	static void
1735	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)	1893	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1736	{	1894	{
1737	SV arg = (SV )slf_frame.data;	1895	SV arg = (SV )slf_frame.data;
1738		1896
1739	prepare_transfer (aTHX_ ta, arg [0], arg [1]);	1897	prepare_transfer (aTHX_ ta, arg [0], arg [1]);
…		…
1768	slf_init_cede_notself (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)	1926	slf_init_cede_notself (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1769	{	1927	{
1770	frame->prepare = prepare_cede_notself;	1928	frame->prepare = prepare_cede_notself;
1771	frame->check = slf_check_nop;	1929	frame->check = slf_check_nop;
1772	}	1930	}
1773
1774	/* we hijack an hopefully unused CV flag for our purposes */
1775	#define CVf_SLF 0x4000
1776		1931
1777	/*	1932	/*
1778	* these not obviously related functions are all rolled into one	1933	* these not obviously related functions are all rolled into one
1779	* function to increase chances that they all will call transfer with the same	1934	* function to increase chances that they all will call transfer with the same
1780	* stack offset	1935	* stack offset
…		…
1836	}	1991	}
1837	while (slf_frame.check (aTHX_ &slf_frame));	1992	while (slf_frame.check (aTHX_ &slf_frame));
1838		1993
1839	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 */
1840		1995
1841	/* return value handling - mostly like entersub */
1842	{
1843	dSP;
1844	SV **bot = PL_stack_base + checkmark;
1845	int gimme = GIMME_V;
1846
1847	/* make sure we put something on the stack in scalar context */
1848	if (gimme == G_SCALAR)
1849	{
1850	if (sp == bot)
1851	XPUSHs (&PL_sv_undef);
1852
1853	SP = bot + 1;
1854	}
1855
1856	PUTBACK;
1857	}
1858
1859	/* exception handling */	1996	/* exception handling */
1860	if (expect_false (coro_throw))	1997	if (expect_false (CORO_THROW))
1861	{	1998	{
1862	SV *exception = sv_2mortal (coro_throw);	1999	SV *exception = sv_2mortal (CORO_THROW);
1863		2000
1864	coro_throw = 0;	2001	CORO_THROW = 0;
1865	sv_setsv (ERRSV, exception);	2002	sv_setsv (ERRSV, exception);
1866	croak (0);	2003	croak (0);
		2004	}
		2005
		2006	/* return value handling - mostly like entersub */
		2007	/* make sure we put something on the stack in scalar context */
		2008	if (GIMME_V == G_SCALAR)
		2009	{
		2010	dSP;
		2011	SV **bot = PL_stack_base + checkmark;
		2012
		2013	if (sp == bot) /* too few, push undef */
		2014	bot [1] = &PL_sv_undef;
		2015	else if (sp != bot + 1) /* too many, take last one */
		2016	bot [1] = *sp;
		2017
		2018	SP = bot + 1;
		2019
		2020	PUTBACK;
1867	}	2021	}
1868		2022
1869	return NORMAL;	2023	return NORMAL;
1870	}	2024	}
1871		2025
…		…
1993	PerlIOBuf_get_cnt,	2147	PerlIOBuf_get_cnt,
1994	PerlIOBuf_set_ptrcnt,	2148	PerlIOBuf_set_ptrcnt,
1995	};	2149	};
1996		2150
1997	/*****************************************************************************/	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
1998	/* Coro::Semaphore */	2173	/* semaphore */
1999		2174
2000	static void	2175	static void
2001	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2176	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2002	{	2177	{
2003	SV *count_sv = AvARRAY (av)[0];	2178	SV *count_sv = AvARRAY (av)[0];
…		…
2015	AvARRAY (av)[0] = AvARRAY (av)[1];	2190	AvARRAY (av)[0] = AvARRAY (av)[1];
2016	AvARRAY (av)[1] = count_sv;	2191	AvARRAY (av)[1] = count_sv;
2017	cb = av_shift (av);	2192	cb = av_shift (av);
2018		2193
2019	if (SvOBJECT (cb))	2194	if (SvOBJECT (cb))
		2195	{
2020	api_ready (aTHX_ cb);	2196	api_ready (aTHX_ cb);
2021	else	2197	--count;
2022	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	}
2023		2207
2024	SvREFCNT_dec (cb);	2208	SvREFCNT_dec (cb);
2025
2026	--count;
2027	}	2209	}
2028	}	2210	}
2029		2211
2030	static void	2212	static void
2031	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2213	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2033	/* call $sem->adjust (0) to possibly wake up some other waiters */	2215	/* call $sem->adjust (0) to possibly wake up some other waiters */
2034	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2216	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2035	}	2217	}
2036		2218
2037	static int	2219	static int
2038	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2220	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2039	{	2221	{
2040	AV av = (AV )frame->data;	2222	AV av = (AV )frame->data;
2041	SV *count_sv = AvARRAY (av)[0];	2223	SV *count_sv = AvARRAY (av)[0];
2042		2224
		2225	/* if we are about to throw, don't actually acquire the lock, just throw */
		2226	if (CORO_THROW)
		2227	return 0;
2043	if (SvIVX (count_sv) > 0)	2228	else if (SvIVX (count_sv) > 0)
2044	{	2229	{
2045	SvSTATE_current->on_destroy = 0;	2230	SvSTATE_current->on_destroy = 0;
		2231
		2232	if (acquire)
2046	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
2047	return 0;	2237	return 0;
2048	}	2238	}
2049	else	2239	else
2050	{	2240	{
2051	int i;	2241	int i;
…		…
2060	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2250	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2061	return 1;	2251	return 1;
2062	}	2252	}
2063	}	2253	}
2064		2254
2065	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
2066	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)
2067	{	2269	{
2068	AV av = (AV )SvRV (arg [0]);	2270	AV av = (AV )SvRV (arg [0]);
2069		2271
2070	if (SvIVX (AvARRAY (av)[0]) > 0)	2272	if (SvIVX (AvARRAY (av)[0]) > 0)
2071	{	2273	{
2072	frame->data = (void *)av;	2274	frame->data = (void *)av;
2073	frame->prepare = prepare_nop;	2275	frame->prepare = prepare_nop;
2074	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2075	}	2276	}
2076	else	2277	else
2077	{	2278	{
2078	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2279	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2079		2280
2080	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2281	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2081	frame->prepare = prepare_schedule;	2282	frame->prepare = prepare_schedule;
2082		2283
2083	/* to avoid race conditions when a woken-up coro gets terminated */	2284	/* to avoid race conditions when a woken-up coro gets terminated */
2084	/* we arrange for a temporary on_destroy that calls adjust (0) */	2285	/* we arrange for a temporary on_destroy that calls adjust (0) */
2085	assert (!SvSTATE_current->on_destroy);//D
2086	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2286	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2087	}	2287	}
		2288	}
2088		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);
2089	frame->check = slf_check_semaphore_down;	2294	frame->check = slf_check_semaphore_down;
2090
2091	}	2295	}
2092		2296
2093	/*****************************************************************************/	2297	static void
2094	/* gensub: simple closure generation utility */	2298	slf_init_semaphore_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2095
2096	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2097
2098	/* create a closure from XS, returns a code reference */
2099	/* the arg can be accessed via GENSUB_ARG from the callback */
2100	/* the callback must use dXSARGS/XSRETURN */
2101	static SV *
2102	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
2103	{	2299	{
2104	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 (aTHX_ arg [1]);
2105		2305
2106	sv_upgrade ((SV *)cv, SVt_PVCV);	2306	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2107		2307
2108	CvANON_on (cv);	2308	if (SvIVX (AvARRAY (av)[0]) > 0)
2109	CvISXSUB_on (cv);	2309	coro_semaphore_adjust (aTHX_ av, 0);
2110	CvXSUB (cv) = xsub;
2111	GENSUB_ARG = arg;
2112		2310
2113	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	}
2114	}	2376	}
2115		2377
2116	/*****************************************************************************/	2378	/*****************************************************************************/
2117	/* Coro::AIO */	2379	/* Coro::AIO */
2118		2380
…		…
2168	static int	2430	static int
2169	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2431	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2170	{	2432	{
2171	AV state = (AV )frame->data;	2433	AV state = (AV )frame->data;
2172		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;
		2440
2173	/* one element that is an RV? repeat! */	2441	/* one element that is an RV? repeat! */
2174	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2442	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2175	return 1;	2443	return 1;
2176		2444
2177	/* restore status */	2445	/* restore status */
…		…
2247		2515
2248	for (i = 0; i < items; ++i)	2516	for (i = 0; i < items; ++i)
2249	PUSHs (arg [i]);	2517	PUSHs (arg [i]);
2250		2518
2251	/* now push the callback closure */	2519	/* now push the callback closure */
2252	PUSHs (sv_2mortal (gensub (coro_aio_callback, (void )SvREFCNT_inc_NN ((SV )state))));	2520	PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void )SvREFCNT_inc_NN ((SV )state))));
2253		2521
2254	/* now call the AIO function - we assume our request is uncancelable */	2522	/* now call the AIO function - we assume our request is uncancelable */
2255	PUTBACK;	2523	PUTBACK;
2256	call_sv ((SV *)req, G_VOID \| G_DISCARD);	2524	call_sv ((SV *)req, G_VOID \| G_DISCARD);
2257	}	2525	}
…		…
2263	}	2531	}
2264		2532
2265	static void	2533	static void
2266	coro_aio_req_xs (pTHX_ CV *cv)	2534	coro_aio_req_xs (pTHX_ CV *cv)
2267	{	2535	{
2268	dVAR;
2269	dXSARGS;	2536	dXSARGS;
2270		2537
2271	CORO_EXECUTE_SLF_XS (slf_init_aio_req);	2538	CORO_EXECUTE_SLF_XS (slf_init_aio_req);
2272		2539
2273	XSRETURN_EMPTY;	2540	XSRETURN_EMPTY;
…		…
2348	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2615	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2349	}	2616	}
2350		2617
2351	SV *	2618	SV *
2352	new (char *klass, ...)	2619	new (char *klass, ...)
		2620	ALIAS:
		2621	Coro::new = 1
2353	CODE:	2622	CODE:
2354	{	2623	{
2355	struct coro *coro;	2624	struct coro *coro;
2356	MAGIC *mg;	2625	MAGIC *mg;
2357	HV *hv;	2626	HV *hv;
		2627	CV *cb;
2358	int i;	2628	int i;
		2629
		2630	if (items > 1)
		2631	{
		2632	cb = coro_sv_2cv (aTHX_ 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	}
2359		2643
2360	Newz (0, coro, 1, struct coro);	2644	Newz (0, coro, 1, struct coro);
2361	coro->args = newAV ();	2645	coro->args = newAV ();
2362	coro->flags = CF_NEW;	2646	coro->flags = CF_NEW;
2363		2647
…		…
2368	coro->hv = hv = newHV ();	2652	coro->hv = hv = newHV ();
2369	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);
2370	mg->mg_flags \|= MGf_DUP;	2654	mg->mg_flags \|= MGf_DUP;
2371	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2655	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2372		2656
		2657	if (items > 1)
		2658	{
2373	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
2374	for (i = 1; i < items; i++)	2669	for (i = 2; i < items; i++)
2375	av_push (coro->args, newSVsv (ST (i)));	2670	av_push (coro->args, newSVsv (ST (i)));
		2671	}
2376	}	2672	}
2377	OUTPUT:	2673	OUTPUT:
2378	RETVAL	2674	RETVAL
2379
2380	void
2381	_set_stacklevel (...)
2382	CODE:
2383	CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2384		2675
2385	void	2676	void
2386	transfer (...)	2677	transfer (...)
2387	PROTOTYPE: $$	2678	PROTOTYPE: $$
2388	CODE:	2679	CODE:
…		…
2514	throw (Coro::State self, SV *throw = &PL_sv_undef)	2805	throw (Coro::State self, SV *throw = &PL_sv_undef)
2515	PROTOTYPE: $;$	2806	PROTOTYPE: $;$
2516	CODE:	2807	CODE:
2517	{	2808	{
2518	struct coro *current = SvSTATE_current;	2809	struct coro *current = SvSTATE_current;
2519	SV **throwp = self == current ? &coro_throw : &self->throw;	2810	SV **throwp = self == current ? &CORO_THROW : &self->except;
2520	SvREFCNT_dec (*throwp);	2811	SvREFCNT_dec (*throwp);
2521	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2812	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2522	}	2813	}
2523		2814
2524	void	2815	void
…		…
2586	int i;	2877	int i;
2587		2878
2588	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2879	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2589	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2880	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2590	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2881	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2591		2882	cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD);
2592	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2883	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);
2593	SvREADONLY_on (coro_current);	2884	SvREADONLY_on (coro_current);
2594		2885
2595	coro_stash = gv_stashpv ("Coro", TRUE);	2886	coro_stash = gv_stashpv ("Coro", TRUE);
2596		2887
2597	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2888	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
2613	coroapi.ready = api_ready;	2904	coroapi.ready = api_ready;
2614	coroapi.is_ready = api_is_ready;	2905	coroapi.is_ready = api_is_ready;
2615	coroapi.nready = coro_nready;	2906	coroapi.nready = coro_nready;
2616	coroapi.current = coro_current;	2907	coroapi.current = coro_current;
2617		2908
2618	GCoroAPI = &coroapi;	2909	/GCoroAPI = &coroapi;/
2619	sv_setiv (sv, (IV)&coroapi);	2910	sv_setiv (sv, (IV)&coroapi);
2620	SvREADONLY_on (sv);	2911	SvREADONLY_on (sv);
2621	}	2912	}
2622	}	2913	}
2623		2914
…		…
2759	api_trace (aTHX_ coro_current, 0);	3050	api_trace (aTHX_ coro_current, 0);
2760		3051
2761	av_push (av_async_pool, newSVsv (coro_current));	3052	av_push (av_async_pool, newSVsv (coro_current));
2762	}	3053	}
2763		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
2764		3069
2765	MODULE = Coro::State PACKAGE = PerlIO::cede	3070	MODULE = Coro::State PACKAGE = PerlIO::cede
2766		3071
2767	BOOT:	3072	BOOT:
2768	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3073	PerlIO_define_layer (aTHX_ &PerlIO_cede);
2769		3074
2770		3075
2771	MODULE = Coro::State PACKAGE = Coro::Semaphore	3076	MODULE = Coro::State PACKAGE = Coro::Semaphore
2772		3077
2773	SV *	3078	SV *
2774	new (SV klass, SV count_ = 0)	3079	new (SV klass, SV count = 0)
2775	CODE:	3080	CODE:
2776	{	3081	RETVAL = sv_bless (
2777	/* 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),
2778	AV *av = newAV ();	3083	GvSTASH (CvGV (cv))
2779	av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1));	3084	);
2780	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));	3085	OUTPUT:
2781	}	3086	RETVAL
		3087
		3088	# helper for Coro::Channel
		3089	SV *
		3090	_alloc (int count)
		3091	CODE:
		3092	RETVAL = coro_waitarray_new (aTHX_ count);
2782	OUTPUT:	3093	OUTPUT:
2783	RETVAL	3094	RETVAL
2784		3095
2785	SV *	3096	SV *
2786	count (SV *self)	3097	count (SV *self)
…		…
2795	adjust = 1	3106	adjust = 1
2796	CODE:	3107	CODE:
2797	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3108	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2798		3109
2799	void	3110	void
2800	down (SV *self)	3111	down (...)
2801	CODE:	3112	CODE:
2802	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);
2803		3119
2804	void	3120	void
2805	try (SV *self)	3121	try (SV *self)
2806	PPCODE:	3122	PPCODE:
2807	{	3123	{
…		…
2819	XSRETURN_NO;	3135	XSRETURN_NO;
2820	}	3136	}
2821		3137
2822	void	3138	void
2823	waiters (SV *self)	3139	waiters (SV *self)
2824	CODE:	3140	PPCODE:
2825	{	3141	{
2826	AV av = (AV )SvRV (self);	3142	AV av = (AV )SvRV (self);
		3143	int wcount = AvFILLp (av) + 1 - 1;
2827		3144
2828	if (GIMME_V == G_SCALAR)	3145	if (GIMME_V == G_SCALAR)
2829	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3146	XPUSHs (sv_2mortal (newSViv (wcount)));
2830	else	3147	else
2831	{	3148	{
2832	int i;	3149	int i;
2833	EXTEND (SP, AvFILLp (av) + 1 - 1);	3150	EXTEND (SP, wcount);
2834	for (i = 1; i <= AvFILLp (av); ++i)	3151	for (i = 1; i <= wcount; ++i)
2835	PUSHs (newSVsv (AvARRAY (av)[i]));	3152	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2836	}	3153	}
2837	}	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
2838		3199
2839		3200
2840	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3201	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2841		3202
2842	BOOT:	3203	BOOT:
…		…
2857	sv_setsv (sv_activity, &PL_sv_undef);	3218	sv_setsv (sv_activity, &PL_sv_undef);
2858	if (coro_nready >= incede)	3219	if (coro_nready >= incede)
2859	{	3220	{
2860	PUSHMARK (SP);	3221	PUSHMARK (SP);
2861	PUTBACK;	3222	PUTBACK;
2862	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);	3223	call_pv ("Coro::AnyEvent::_activity", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
2863	SPAGAIN;
2864	}	3224	}
2865		3225
2866	--incede;	3226	--incede;
2867	}	3227	}
2868		3228
…		…
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;	3236	CV *req_cv = coro_sv_2cv (aTHX_ req);
2877	GV *gvp;	3237	/* newXSproto doesn't return the CV on 5.8 */
2878	CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2879	CV *slf_cv = newXSproto (target, coro_aio_req_xs, __FILE__, proto);	3238	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
		3239	sv_setpv ((SV *)slf_cv, proto);
2880	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);
2881	}	3241	}
2882		3242

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Comparing Coro/Coro/State.xs (file contents): Revision 1.287 by root, Mon Nov 17 07:03:12 2008 UTC vs. Revision 1.311 by root, Thu Nov 20 01:12:08 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.287 by root, Mon Nov 17 07:03:12 2008 UTC vs.
Revision 1.311 by root, Thu Nov 20 01:12:08 2008 UTC