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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.289 by root, Mon Nov 17 08:25:06 2008 UTC vs.
Revision 1.309 by root, Wed Nov 19 15:29:57 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
153	#endif	156	#endif
154		157
155	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);
156		163
157	static U32 cctx_gen;	164	static U32 cctx_gen;
158	static size_t cctx_stacksize = CORO_STACKSIZE;	165	static size_t cctx_stacksize = CORO_STACKSIZE;
159	static struct CoroAPI coroapi;	166	static struct CoroAPI coroapi;
160	static AV main_mainstack; / used to differentiate between $main and others */	167	static AV main_mainstack; / used to differentiate between $main and others */
161	static JMPENV *main_top_env;	168	static JMPENV *main_top_env;
162	static HV coro_state_stash, coro_stash;	169	static HV coro_state_stash, coro_stash;
		170	static CV *coro_run_cv;
163	static volatile SV coro_mortal; / will be freed/thrown after next transfer */	171	static volatile SV coro_mortal; / will be freed/thrown after next transfer */
164		172
165	static GV irsgv; / $/ */	173	static GV irsgv; / $/ */
166	static GV stdoutgv; / STDOUT /	174	static GV stdoutgv; / STDOUT /
167	static SV *rv_diehook;	175	static SV *rv_diehook;
…		…
239	/* state data */	247	/* state data */
240	struct CoroSLF slf_frame; /* saved slf frame */	248	struct CoroSLF slf_frame; /* saved slf frame */
241	AV *mainstack;	249	AV *mainstack;
242	perl_slots slot; / basically the saved sp */	250	perl_slots slot; / basically the saved sp */
243		251
		252	CV startcv; / the CV to execute */
244	AV args; / data associated with this coroutine (initial args) */	253	AV args; / data associated with this coroutine (initial args) */
245	int refcnt; /* coroutines are refcounted, yes */	254	int refcnt; /* coroutines are refcounted, yes */
246	int flags; /* CF_ flags */	255	int flags; /* CF_ flags */
247	HV hv; / the perl hash associated with this coro, if any */	256	HV hv; / the perl hash associated with this coro, if any */
248	void (on_destroy)(pTHX_ struct coro coro);	257	void (on_destroy)(pTHX_ struct coro coro);
249		258
250	/* statistics */	259	/* statistics */
251	int usecount; /* number of transfers to this coro */	260	int usecount; /* number of transfers to this coro */
252		261
253	/* coro process data */	262	/* coro process data */
254	int prio;	263	int prio;
255	SV throw; / exception to be thrown */	264	SV except; / exception to be thrown */
		265	SV *rouse_cb;
256		266
257	/* async_pool */	267	/* async_pool */
258	SV *saved_deffh;	268	SV *saved_deffh;
259		269
260	/* linked list */	270	/* linked list */
…		…
266		276
267	/* the following variables are effectively part of the perl context */	277	/* the following variables are effectively part of the perl context */
268	/* and get copied between struct coro and these variables */	278	/* and get copied between struct coro and these variables */
269	/* the mainr easonw e don't support windows process emulation */	279	/* the mainr easonw e don't support windows process emulation */
270	static struct CoroSLF slf_frame; /* the current slf frame */	280	static struct CoroSLF slf_frame; /* the current slf frame */
271	static SV *coro_throw;
272		281
273	/ Coro ******************************************************************/	282	/ Coro ******************************************************************/
274		283
275	#define PRIO_MAX 3	284	#define PRIO_MAX 3
276	#define PRIO_HIGH 1	285	#define PRIO_HIGH 1
…		…
314	#if PERL_VERSION_ATLEAST (5,10,0)	323	#if PERL_VERSION_ATLEAST (5,10,0)
315	/* 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 */
316	get_hv (name, create);	325	get_hv (name, create);
317	#endif	326	#endif
318	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);
319	}	337	}
320		338
321	static AV *	339	static AV *
322	coro_clone_padlist (pTHX_ CV *cv)	340	coro_clone_padlist (pTHX_ CV *cv)
323	{	341	{
…		…
442	else	460	else
443	{	461	{
444	#if CORO_PREFER_PERL_FUNCTIONS	462	#if CORO_PREFER_PERL_FUNCTIONS
445	/* this is probably cleaner? but also slower! */	463	/* this is probably cleaner? but also slower! */
446	/* in practise, it seems to be less stable */	464	/* in practise, it seems to be less stable */
447	CV *cp = Perl_cv_clone (cv);	465	CV *cp = Perl_cv_clone (aTHX_ cv);
448	CvPADLIST (cv) = CvPADLIST (cp);	466	CvPADLIST (cv) = CvPADLIST (cp);
449	CvPADLIST (cp) = 0;	467	CvPADLIST (cp) = 0;
450	SvREFCNT_dec (cp);	468	SvREFCNT_dec (cp);
451	#else	469	#else
452	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	470	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
…		…
505		523
506	PUTBACK;	524	PUTBACK;
507	}	525	}
508		526
509	slf_frame = c->slf_frame;	527	slf_frame = c->slf_frame;
510	coro_throw = c->throw;	528	CORO_THROW = c->except;
511	}	529	}
512		530
513	static void	531	static void
514	save_perl (pTHX_ Coro__State c)	532	save_perl (pTHX_ Coro__State c)
515	{	533	{
516	c->throw = coro_throw;	534	c->except = CORO_THROW;
517	c->slf_frame = slf_frame;	535	c->slf_frame = slf_frame;
518		536
519	{	537	{
520	dSP;	538	dSP;
521	I32 cxix = cxstack_ix;	539	I32 cxix = cxstack_ix;
…		…
596	* of perl.c:init_stacks, except that it uses less memory	614	* of perl.c:init_stacks, except that it uses less memory
597	* on the (sometimes correct) assumption that coroutines do	615	* on the (sometimes correct) assumption that coroutines do
598	* not usually need a lot of stackspace.	616	* not usually need a lot of stackspace.
599	*/	617	*/
600	#if CORO_PREFER_PERL_FUNCTIONS	618	#if CORO_PREFER_PERL_FUNCTIONS
601	# define coro_init_stacks init_stacks	619	# define coro_init_stacks(thx) init_stacks ()
602	#else	620	#else
603	static void	621	static void
604	coro_init_stacks (pTHX)	622	coro_init_stacks (pTHX)
605	{	623	{
606	PL_curstackinfo = new_stackinfo(32, 8);	624	PL_curstackinfo = new_stackinfo(32, 8);
…		…
814	slf_check_nop (pTHX_ struct CoroSLF *frame)	832	slf_check_nop (pTHX_ struct CoroSLF *frame)
815	{	833	{
816	return 0;	834	return 0;
817	}	835	}
818		836
		837	static UNOP coro_setup_op;
		838
819	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 */
820	coro_setup (pTHX_ struct coro *coro)	840	coro_setup (pTHX_ struct coro *coro)
821	{	841	{
822	/*	842	/*
823	* emulate part of the perl startup here.	843	* emulate part of the perl startup here.
…		…
851	{	871	{
852	dSP;	872	dSP;
853	UNOP myop;	873	UNOP myop;
854		874
855	Zero (&myop, 1, UNOP);	875	Zero (&myop, 1, UNOP);
856	myop.op_next = Nullop;	876	myop.op_next = Nullop;
		877	myop.op_type = OP_ENTERSUB;
857	myop.op_flags = OPf_WANT_VOID;	878	myop.op_flags = OPf_WANT_VOID;
858		879
859	PUSHMARK (SP);	880	PUSHMARK (SP);
860	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));	881	PUSHs ((SV *)coro->startcv);
861	PUTBACK;	882	PUTBACK;
862	PL_op = (OP *)&myop;	883	PL_op = (OP *)&myop;
863	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	884	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
864	SPAGAIN;
865	}	885	}
866		886
867	/* 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
868	* 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.
869	*/	889	*/
870	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 */
871	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 */
872		892
873	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;
874	}	903	}
875		904
876	static void	905	static void
877	coro_destruct (pTHX_ struct coro *coro)	906	coro_destruct (pTHX_ struct coro *coro)
878	{	907	{
…		…
902		931
903	SvREFCNT_dec (PL_diehook);	932	SvREFCNT_dec (PL_diehook);
904	SvREFCNT_dec (PL_warnhook);	933	SvREFCNT_dec (PL_warnhook);
905		934
906	SvREFCNT_dec (coro->saved_deffh);	935	SvREFCNT_dec (coro->saved_deffh);
907	SvREFCNT_dec (coro_throw);	936	SvREFCNT_dec (coro->rouse_cb);
908		937
909	coro_destruct_stacks (aTHX);	938	coro_destruct_stacks (aTHX);
910	}	939	}
911		940
912	INLINE void	941	INLINE void
…		…
999	SAVETMPS;	1028	SAVETMPS;
1000	EXTEND (SP, 3);	1029	EXTEND (SP, 3);
1001	PUSHMARK (SP);	1030	PUSHMARK (SP);
1002	PUSHs (&PL_sv_yes);	1031	PUSHs (&PL_sv_yes);
1003	PUSHs (fullname);	1032	PUSHs (fullname);
1004	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);
1005	PUTBACK;	1034	PUTBACK;
1006	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);
1007	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);
1008	SPAGAIN;	1037	SPAGAIN;
1009	FREETMPS;	1038	FREETMPS;
…		…
1041		1070
1042	TAINT_NOT;	1071	TAINT_NOT;
1043	return 0;	1072	return 0;
1044	}	1073	}
1045		1074
		1075	static struct coro_cctx *cctx_ssl_cctx;
		1076	static struct CoroSLF cctx_ssl_frame;
		1077
1046	static void	1078	static void
1047	prepare_set_stacklevel (struct coro_transfer_args ta, struct coro_cctx cctx)	1079	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1048	{	1080	{
1049	ta->prev = (struct coro *)cctx;	1081	ta->prev = (struct coro *)cctx_ssl_cctx;
1050	ta->next = 0;	1082	ta->next = 0;
1051	}	1083	}
1052		1084
1053	/* inject a fake call to Coro::State::_cctx_init into the execution */	1085	static int
1054	/* _cctx_init should be careful, as it could be called at almost any time */	1086	slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1055	/* during execution of a perl program */	1087	{
1056	/* 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 */
1057	static void NOINLINE	1094	static void NOINLINE
1058	cctx_prepare (pTHX_ coro_cctx *cctx)	1095	cctx_prepare (pTHX_ coro_cctx *cctx)
1059	{	1096	{
1060	dSP;
1061	UNOP myop;
1062
1063	PL_top_env = &PL_start_env;	1097	PL_top_env = &PL_start_env;
1064		1098
1065	if (cctx->flags & CC_TRACE)	1099	if (cctx->flags & CC_TRACE)
1066	PL_runops = runops_trace;	1100	PL_runops = runops_trace;
1067		1101
1068	Zero (&myop, 1, UNOP);	1102	/* we already must be executing an SLF op, there is no other valid way
1069	myop.op_next = PL_op;	1103	* that can lead to creation of a new cctx */
1070	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));
1071		1106
1072	PUSHMARK (SP);	1107	/* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1073	EXTEND (SP, 2);	1108	cctx_ssl_cctx = cctx;
1074	PUSHs (sv_2mortal (newSViv ((IV)cctx)));	1109	cctx_ssl_frame = slf_frame;
1075	PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));	1110
1076	PUTBACK;	1111	slf_frame.prepare = slf_prepare_set_stacklevel;
1077	PL_op = (OP *)&myop;	1112	slf_frame.check = slf_check_set_stacklevel;
1078	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
1079	SPAGAIN;
1080	}	1113	}
1081		1114
1082	/* 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 */
1083	INLINE void	1116	INLINE void
1084	transfer_tail (pTHX)	1117	transfer_tail (pTHX)
…		…
1111	transfer_tail (aTHX);	1144	transfer_tail (aTHX);
1112		1145
1113	/* 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 */
1114	PL_restartop = PL_op;	1147	PL_restartop = PL_op;
1115	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	*/
1116		1153
1117	/*	1154	/*
1118	* 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
1119	* 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)
1120	* 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
…		…
1300	dSTACKLEVEL;	1337	dSTACKLEVEL;
1301		1338
1302	/* sometimes transfer is only called to set idle_sp */	1339	/* sometimes transfer is only called to set idle_sp */
1303	if (expect_false (!next))	1340	if (expect_false (!next))
1304	{	1341	{
1305	((coro_cctx )prev)->idle_sp = (void )stacklevel;	1342	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
1306	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 */
1307	}	1344	}
1308	else if (expect_true (prev != next))	1345	else if (expect_true (prev != next))
1309	{	1346	{
1310	coro_cctx *prev__cctx;	1347	coro_cctx *prev__cctx;
…		…
1335		1372
1336	prev__cctx = prev->cctx;	1373	prev__cctx = prev->cctx;
1337		1374
1338	/* possibly untie and reuse the cctx */	1375	/* possibly untie and reuse the cctx */
1339	if (expect_true (	1376	if (expect_true (
1340	prev__cctx->idle_sp == (void *)stacklevel	1377	prev__cctx->idle_sp == STACKLEVEL
1341	&& !(prev__cctx->flags & CC_TRACE)	1378	&& !(prev__cctx->flags & CC_TRACE)
1342	&& !force_cctx	1379	&& !force_cctx
1343	))	1380	))
1344	{	1381	{
1345	/* 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 */
…		…
1412		1449
1413	coro->slot = 0;	1450	coro->slot = 0;
1414	}	1451	}
1415		1452
1416	cctx_destroy (coro->cctx);	1453	cctx_destroy (coro->cctx);
		1454	SvREFCNT_dec (coro->startcv);
1417	SvREFCNT_dec (coro->args);	1455	SvREFCNT_dec (coro->args);
		1456	SvREFCNT_dec (CORO_THROW);
1418		1457
1419	if (coro->next) coro->next->prev = coro->prev;	1458	if (coro->next) coro->next->prev = coro->prev;
1420	if (coro->prev) coro->prev->next = coro->next;	1459	if (coro->prev) coro->prev->next = coro->next;
1421	if (coro == coro_first) coro_first = coro->next;	1460	if (coro == coro_first) coro_first = coro->next;
1422		1461
…		…
1476		1515
1477	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1516	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1478	TRANSFER (ta, 1);	1517	TRANSFER (ta, 1);
1479	}	1518	}
1480		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
1481	/ Coro ******************************************************************/	1543	/ Coro ******************************************************************/
1482		1544
1483	INLINE void	1545	INLINE void
1484	coro_enq (pTHX_ struct coro *coro)	1546	coro_enq (pTHX_ struct coro *coro)
1485	{	1547	{
…		…
1528	ENTER;	1590	ENTER;
1529	SAVETMPS;	1591	SAVETMPS;
1530		1592
1531	PUSHMARK (SP);	1593	PUSHMARK (SP);
1532	PUTBACK;	1594	PUTBACK;
1533	call_sv (sv_hook, G_DISCARD);	1595	call_sv (sv_hook, G_VOID \| G_DISCARD);
1534	SPAGAIN;
1535		1596
1536	FREETMPS;	1597	FREETMPS;
1537	LEAVE;	1598	LEAVE;
1538	}	1599	}
1539		1600
…		…
1566	ENTER;	1627	ENTER;
1567	SAVETMPS;	1628	SAVETMPS;
1568		1629
1569	PUSHMARK (SP);	1630	PUSHMARK (SP);
1570	PUTBACK;	1631	PUTBACK;
1571	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1632	call_sv (get_sv ("Coro::idle", FALSE), G_VOID \| G_DISCARD);
1572	SPAGAIN;
1573		1633
1574	FREETMPS;	1634	FREETMPS;
1575	LEAVE;	1635	LEAVE;
1576	continue;	1636	continue;
1577	}	1637	}
…		…
1687	coro->slot->runops = RUNOPS_DEFAULT;	1747	coro->slot->runops = RUNOPS_DEFAULT;
1688	}	1748	}
1689	}	1749	}
1690		1750
1691	/*****************************************************************************/	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	/*****************************************************************************/
1692	/* schedule-like-function opcode (SLF) */	1863	/* schedule-like-function opcode (SLF) */
1693		1864
1694	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 */
1695	static const CV *slf_cv;	1866	static const CV *slf_cv;
1696	static SV **slf_argv;	1867	static SV **slf_argv;
…		…
1717		1888
1718	RETURNOP (slf_restore.op_first);	1889	RETURNOP (slf_restore.op_first);
1719	}	1890	}
1720		1891
1721	static void	1892	static void
1722	slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1723	{
1724	prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1725	}
1726
1727	static void
1728	slf_init_set_stacklevel (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
1729	{
1730	assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1731
1732	frame->prepare = slf_prepare_set_stacklevel;
1733	frame->check = slf_check_nop;
1734	frame->data = (void *)SvIV (arg [0]);
1735	}
1736
1737	static void
1738	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)	1893	slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta)
1739	{	1894	{
1740	SV arg = (SV )slf_frame.data;	1895	SV arg = (SV )slf_frame.data;
1741		1896
1742	prepare_transfer (aTHX_ ta, arg [0], arg [1]);	1897	prepare_transfer (aTHX_ ta, arg [0], arg [1]);
…		…
1771	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)
1772	{	1927	{
1773	frame->prepare = prepare_cede_notself;	1928	frame->prepare = prepare_cede_notself;
1774	frame->check = slf_check_nop;	1929	frame->check = slf_check_nop;
1775	}	1930	}
1776
1777	/* we hijack an hopefully unused CV flag for our purposes */
1778	#define CVf_SLF 0x4000
1779		1931
1780	/*	1932	/*
1781	* these not obviously related functions are all rolled into one	1933	* these not obviously related functions are all rolled into one
1782	* 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
1783	* stack offset	1935	* stack offset
…		…
1839	}	1991	}
1840	while (slf_frame.check (aTHX_ &slf_frame));	1992	while (slf_frame.check (aTHX_ &slf_frame));
1841		1993
1842	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 */
1843		1995
1844	/* return value handling - mostly like entersub */
1845	{
1846	dSP;
1847	SV **bot = PL_stack_base + checkmark;
1848	int gimme = GIMME_V;
1849
1850	/* make sure we put something on the stack in scalar context */
1851	if (gimme == G_SCALAR)
1852	{
1853	if (sp == bot)
1854	XPUSHs (&PL_sv_undef);
1855
1856	SP = bot + 1;
1857	}
1858
1859	PUTBACK;
1860	}
1861
1862	/* exception handling */	1996	/* exception handling */
1863	if (expect_false (coro_throw))	1997	if (expect_false (CORO_THROW))
1864	{	1998	{
1865	SV *exception = sv_2mortal (coro_throw);	1999	SV *exception = sv_2mortal (CORO_THROW);
1866		2000
1867	coro_throw = 0;	2001	CORO_THROW = 0;
1868	sv_setsv (ERRSV, exception);	2002	sv_setsv (ERRSV, exception);
1869	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;
1870	}	2021	}
1871		2022
1872	return NORMAL;	2023	return NORMAL;
1873	}	2024	}
1874		2025
…		…
1996	PerlIOBuf_get_cnt,	2147	PerlIOBuf_get_cnt,
1997	PerlIOBuf_set_ptrcnt,	2148	PerlIOBuf_set_ptrcnt,
1998	};	2149	};
1999		2150
2000	/*****************************************************************************/	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
2001	/* Coro::Semaphore */	2173	/* semaphore */
2002		2174
2003	static void	2175	static void
2004	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)	2176	coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2005	{	2177	{
2006	SV *count_sv = AvARRAY (av)[0];	2178	SV *count_sv = AvARRAY (av)[0];
…		…
2018	AvARRAY (av)[0] = AvARRAY (av)[1];	2190	AvARRAY (av)[0] = AvARRAY (av)[1];
2019	AvARRAY (av)[1] = count_sv;	2191	AvARRAY (av)[1] = count_sv;
2020	cb = av_shift (av);	2192	cb = av_shift (av);
2021		2193
2022	if (SvOBJECT (cb))	2194	if (SvOBJECT (cb))
		2195	{
2023	api_ready (aTHX_ cb);	2196	api_ready (aTHX_ cb);
2024	else	2197	--count;
2025	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	}
2026		2207
2027	SvREFCNT_dec (cb);	2208	SvREFCNT_dec (cb);
2028
2029	--count;
2030	}	2209	}
2031	}	2210	}
2032		2211
2033	static void	2212	static void
2034	coro_semaphore_on_destroy (pTHX_ struct coro *coro)	2213	coro_semaphore_on_destroy (pTHX_ struct coro *coro)
…		…
2036	/* call $sem->adjust (0) to possibly wake up some other waiters */	2215	/* call $sem->adjust (0) to possibly wake up some other waiters */
2037	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);	2216	coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2038	}	2217	}
2039		2218
2040	static int	2219	static int
2041	slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)	2220	slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2042	{	2221	{
2043	AV av = (AV )frame->data;	2222	AV av = (AV )frame->data;
2044	SV *count_sv = AvARRAY (av)[0];	2223	SV *count_sv = AvARRAY (av)[0];
2045		2224
		2225	/* if we are about to throw, don't actually acquire the lock, just throw */
		2226	if (CORO_THROW)
		2227	return 0;
2046	if (SvIVX (count_sv) > 0)	2228	else if (SvIVX (count_sv) > 0)
2047	{	2229	{
2048	SvSTATE_current->on_destroy = 0;	2230	SvSTATE_current->on_destroy = 0;
		2231
		2232	if (acquire)
2049	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
2050	return 0;	2237	return 0;
2051	}	2238	}
2052	else	2239	else
2053	{	2240	{
2054	int i;	2241	int i;
…		…
2063	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2250	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2064	return 1;	2251	return 1;
2065	}	2252	}
2066	}	2253	}
2067		2254
2068	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
2069	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)
2070	{	2269	{
2071	AV av = (AV )SvRV (arg [0]);	2270	AV av = (AV )SvRV (arg [0]);
2072		2271
2073	if (SvIVX (AvARRAY (av)[0]) > 0)	2272	if (SvIVX (AvARRAY (av)[0]) > 0)
2074	{	2273	{
2075	frame->data = (void *)av;	2274	frame->data = (void *)av;
2076	frame->prepare = prepare_nop;	2275	frame->prepare = prepare_nop;
2077	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2078	}	2276	}
2079	else	2277	else
2080	{	2278	{
2081	av_push (av, SvREFCNT_inc (SvRV (coro_current)));	2279	av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2082		2280
2083	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));	2281	frame->data = (void )sv_2mortal (SvREFCNT_inc ((SV )av));
2084	frame->prepare = prepare_schedule;	2282	frame->prepare = prepare_schedule;
2085		2283
2086	/* to avoid race conditions when a woken-up coro gets terminated */	2284	/* to avoid race conditions when a woken-up coro gets terminated */
2087	/* we arrange for a temporary on_destroy that calls adjust (0) */	2285	/* we arrange for a temporary on_destroy that calls adjust (0) */
2088	assert (!SvSTATE_current->on_destroy);//D
2089	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;	2286	SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2090	}	2287	}
		2288	}
2091		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);
2092	frame->check = slf_check_semaphore_down;	2294	frame->check = slf_check_semaphore_down;
2093
2094	}	2295	}
2095		2296
2096	/*****************************************************************************/	2297	static void
2097	/* gensub: simple closure generation utility */	2298	slf_init_semaphore_wait (pTHX_ struct CoroSLF frame, CV cv, SV **arg, int items)
2098
2099	#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2100
2101	/* create a closure from XS, returns a code reference */
2102	/* the arg can be accessed via GENSUB_ARG from the callback */
2103	/* the callback must use dXSARGS/XSRETURN */
2104	static SV *
2105	gensub (pTHX_ void (xsub)(pTHX_ CV ), void *arg)
2106	{	2299	{
2107	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]);
2108		2305
2109	sv_upgrade ((SV *)cv, SVt_PVCV);	2306	av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv));
2110		2307
2111	CvANON_on (cv);	2308	if (SvIVX (AvARRAY (av)[0]) > 0)
2112	CvISXSUB_on (cv);	2309	coro_semaphore_adjust (aTHX_ av, 0);
2113	CvXSUB (cv) = xsub;
2114	GENSUB_ARG = arg;
2115		2310
2116	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	}
2117	}	2376	}
2118		2377
2119	/*****************************************************************************/	2378	/*****************************************************************************/
2120	/* Coro::AIO */	2379	/* Coro::AIO */
2121		2380
…		…
2170		2429
2171	static int	2430	static int
2172	slf_check_aio_req (pTHX_ struct CoroSLF *frame)	2431	slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2173	{	2432	{
2174	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;
2175		2440
2176	/* one element that is an RV? repeat! */	2441	/* one element that is an RV? repeat! */
2177	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))	2442	if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2178	return 1;	2443	return 1;
2179		2444
…		…
2350	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	2615	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
2351	}	2616	}
2352		2617
2353	SV *	2618	SV *
2354	new (char *klass, ...)	2619	new (char *klass, ...)
		2620	ALIAS:
		2621	Coro::new = 1
2355	CODE:	2622	CODE:
2356	{	2623	{
2357	struct coro *coro;	2624	struct coro *coro;
2358	MAGIC *mg;	2625	MAGIC *mg;
2359	HV *hv;	2626	HV *hv;
		2627	CV *cb;
2360	int i;	2628	int i;
		2629
		2630	if (items > 1)
		2631	{
		2632	cb = coro_sv_2cv (ST (1));
		2633
		2634	if (CvISXSUB (cb))
		2635	croak ("Coro::State doesn't support XS functions as coroutine start, caught");
		2636
		2637	if (!CvROOT (cb))
		2638	croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
		2639	}
2361		2640
2362	Newz (0, coro, 1, struct coro);	2641	Newz (0, coro, 1, struct coro);
2363	coro->args = newAV ();	2642	coro->args = newAV ();
2364	coro->flags = CF_NEW;	2643	coro->flags = CF_NEW;
2365		2644
…		…
2370	coro->hv = hv = newHV ();	2649	coro->hv = hv = newHV ();
2371	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);	2650	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
2372	mg->mg_flags \|= MGf_DUP;	2651	mg->mg_flags \|= MGf_DUP;
2373	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	2652	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2374		2653
		2654	if (items > 1)
		2655	{
2375	av_extend (coro->args, items - 1);	2656	av_extend (coro->args, items - 1 + ix);
		2657
		2658	if (ix)
		2659	{
		2660	av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
		2661	cb = coro_run_cv;
		2662	}
		2663
		2664	coro->startcv = (CV )SvREFCNT_inc_NN ((SV )cb);
		2665
2376	for (i = 1; i < items; i++)	2666	for (i = 2; i < items; i++)
2377	av_push (coro->args, newSVsv (ST (i)));	2667	av_push (coro->args, newSVsv (ST (i)));
		2668	}
2378	}	2669	}
2379	OUTPUT:	2670	OUTPUT:
2380	RETVAL	2671	RETVAL
2381
2382	void
2383	_set_stacklevel (...)
2384	CODE:
2385	CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2386		2672
2387	void	2673	void
2388	transfer (...)	2674	transfer (...)
2389	PROTOTYPE: $$	2675	PROTOTYPE: $$
2390	CODE:	2676	CODE:
…		…
2516	throw (Coro::State self, SV *throw = &PL_sv_undef)	2802	throw (Coro::State self, SV *throw = &PL_sv_undef)
2517	PROTOTYPE: $;$	2803	PROTOTYPE: $;$
2518	CODE:	2804	CODE:
2519	{	2805	{
2520	struct coro *current = SvSTATE_current;	2806	struct coro *current = SvSTATE_current;
2521	SV **throwp = self == current ? &coro_throw : &self->throw;	2807	SV **throwp = self == current ? &CORO_THROW : &self->except;
2522	SvREFCNT_dec (*throwp);	2808	SvREFCNT_dec (*throwp);
2523	*throwp = SvOK (throw) ? newSVsv (throw) : 0;	2809	*throwp = SvOK (throw) ? newSVsv (throw) : 0;
2524	}	2810	}
2525		2811
2526	void	2812	void
…		…
2588	int i;	2874	int i;
2589		2875
2590	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);	2876	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2591	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);	2877	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2592	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);	2878	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2593		2879	coro_run_cv = get_cv (aTHX_ "Coro::_terminate", GV_ADD);
2594	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);	2880	coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE);
2595	SvREADONLY_on (coro_current);	2881	SvREADONLY_on (coro_current);
2596		2882
2597	coro_stash = gv_stashpv ("Coro", TRUE);	2883	coro_stash = gv_stashpv ("Coro", TRUE);
2598		2884
2599	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	2885	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
…		…
2615	coroapi.ready = api_ready;	2901	coroapi.ready = api_ready;
2616	coroapi.is_ready = api_is_ready;	2902	coroapi.is_ready = api_is_ready;
2617	coroapi.nready = coro_nready;	2903	coroapi.nready = coro_nready;
2618	coroapi.current = coro_current;	2904	coroapi.current = coro_current;
2619		2905
2620	GCoroAPI = &coroapi;	2906	/GCoroAPI = &coroapi;/
2621	sv_setiv (sv, (IV)&coroapi);	2907	sv_setiv (sv, (IV)&coroapi);
2622	SvREADONLY_on (sv);	2908	SvREADONLY_on (sv);
2623	}	2909	}
2624	}	2910	}
2625		2911
…		…
2761	api_trace (aTHX_ coro_current, 0);	3047	api_trace (aTHX_ coro_current, 0);
2762		3048
2763	av_push (av_async_pool, newSVsv (coro_current));	3049	av_push (av_async_pool, newSVsv (coro_current));
2764	}	3050	}
2765		3051
		3052	SV *
		3053	rouse_cb ()
		3054	PROTOTYPE:
		3055	CODE:
		3056	RETVAL = coro_new_rouse_cb (aTHX);
		3057	OUTPUT:
		3058	RETVAL
		3059
		3060	void
		3061	rouse_wait (...)
		3062	PROTOTYPE: ;$
		3063	PPCODE:
		3064	CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
		3065
2766		3066
2767	MODULE = Coro::State PACKAGE = PerlIO::cede	3067	MODULE = Coro::State PACKAGE = PerlIO::cede
2768		3068
2769	BOOT:	3069	BOOT:
2770	PerlIO_define_layer (aTHX_ &PerlIO_cede);	3070	PerlIO_define_layer (aTHX_ &PerlIO_cede);
2771		3071
2772		3072
2773	MODULE = Coro::State PACKAGE = Coro::Semaphore	3073	MODULE = Coro::State PACKAGE = Coro::Semaphore
2774		3074
2775	SV *	3075	SV *
2776	new (SV klass, SV count_ = 0)	3076	new (SV klass, SV count = 0)
2777	CODE:	3077	CODE:
2778	{	3078	RETVAL = sv_bless (
2779	/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */	3079	coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1),
2780	AV *av = newAV ();	3080	GvSTASH (CvGV (cv))
2781	SV **ary;	3081	);
		3082	OUTPUT:
		3083	RETVAL
2782		3084
2783	/* unfortunately, building manually saves memory */	3085	# helper for Coro::Channel
2784	Newx (ary, 2, SV *);	3086	SV *
2785	AvALLOC (av) = ary;	3087	_alloc (int count)
2786	AvARRAY (av) = ary;	3088	CODE:
2787	AvMAX (av) = 1;	3089	RETVAL = coro_waitarray_new (aTHX_ count);
2788	AvFILLp (av) = 0;
2789	ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2790
2791	RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv)));
2792	}
2793	OUTPUT:	3090	OUTPUT:
2794	RETVAL	3091	RETVAL
2795		3092
2796	SV *	3093	SV *
2797	count (SV *self)	3094	count (SV *self)
…		…
2806	adjust = 1	3103	adjust = 1
2807	CODE:	3104	CODE:
2808	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);	3105	coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2809		3106
2810	void	3107	void
2811	down (SV *self)	3108	down (...)
2812	CODE:	3109	CODE:
2813	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);	3110	CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
		3111
		3112	void
		3113	wait (...)
		3114	CODE:
		3115	CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2814		3116
2815	void	3117	void
2816	try (SV *self)	3118	try (SV *self)
2817	PPCODE:	3119	PPCODE:
2818	{	3120	{
…		…
2830	XSRETURN_NO;	3132	XSRETURN_NO;
2831	}	3133	}
2832		3134
2833	void	3135	void
2834	waiters (SV *self)	3136	waiters (SV *self)
2835	CODE:	3137	PPCODE:
2836	{	3138	{
2837	AV av = (AV )SvRV (self);	3139	AV av = (AV )SvRV (self);
		3140	int wcount = AvFILLp (av) + 1 - 1;
2838		3141
2839	if (GIMME_V == G_SCALAR)	3142	if (GIMME_V == G_SCALAR)
2840	XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0])));	3143	XPUSHs (sv_2mortal (newSViv (wcount)));
2841	else	3144	else
2842	{	3145	{
2843	int i;	3146	int i;
2844	EXTEND (SP, AvFILLp (av) + 1 - 1);	3147	EXTEND (SP, wcount);
2845	for (i = 1; i <= AvFILLp (av); ++i)	3148	for (i = 1; i <= wcount; ++i)
2846	PUSHs (newSVsv (AvARRAY (av)[i]));	3149	PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2847	}	3150	}
2848	}	3151	}
		3152
		3153	MODULE = Coro::State PACKAGE = Coro::Signal
		3154
		3155	SV *
		3156	new (SV *klass)
		3157	CODE:
		3158	RETVAL = sv_bless (
		3159	coro_waitarray_new (aTHX_ 0),
		3160	GvSTASH (CvGV (cv))
		3161	);
		3162	OUTPUT:
		3163	RETVAL
		3164
		3165	void
		3166	wait (...)
		3167	CODE:
		3168	CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
		3169
		3170	void
		3171	broadcast (SV *self)
		3172	CODE:
		3173	{
		3174	AV av = (AV )SvRV (self);
		3175	coro_signal_wake (aTHX_ av, AvFILLp (av));
		3176	}
		3177
		3178	void
		3179	send (SV *self)
		3180	CODE:
		3181	{
		3182	AV av = (AV )SvRV (self);
		3183
		3184	if (AvFILLp (av))
		3185	coro_signal_wake (aTHX_ av, 1);
		3186	else
		3187	SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
		3188	}
		3189
		3190	IV
		3191	awaited (SV *self)
		3192	CODE:
		3193	RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
		3194	OUTPUT:
		3195	RETVAL
2849		3196
2850		3197
2851	MODULE = Coro::State PACKAGE = Coro::AnyEvent	3198	MODULE = Coro::State PACKAGE = Coro::AnyEvent
2852		3199
2853	BOOT:	3200	BOOT:
…		…
2868	sv_setsv (sv_activity, &PL_sv_undef);	3215	sv_setsv (sv_activity, &PL_sv_undef);
2869	if (coro_nready >= incede)	3216	if (coro_nready >= incede)
2870	{	3217	{
2871	PUSHMARK (SP);	3218	PUSHMARK (SP);
2872	PUTBACK;	3219	PUTBACK;
2873	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);	3220	call_pv ("Coro::AnyEvent::_activity", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
2874	SPAGAIN;
2875	}	3221	}
2876		3222
2877	--incede;	3223	--incede;
2878	}	3224	}
2879		3225
…		…
2882		3228
2883	void	3229	void
2884	_register (char target, char proto, SV *req)	3230	_register (char target, char proto, SV *req)
2885	CODE:	3231	CODE:
2886	{	3232	{
2887	HV *st;
2888	GV *gvp;
2889	CV *req_cv = sv_2cv (req, &st, &gvp, 0);	3233	CV *req_cv = coro_sv_2cv (req);
2890	/* newXSproto doesn't return the CV on 5.8 */	3234	/* newXSproto doesn't return the CV on 5.8 */
2891	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);	3235	CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2892	sv_setpv ((SV *)slf_cv, proto);	3236	sv_setpv ((SV *)slf_cv, proto);
2893	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);	3237	sv_magicext ((SV )slf_cv, (SV )req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2894	}	3238	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.289 by root, Mon Nov 17 08:25:06 2008 UTC vs. Revision 1.309 by root, Wed Nov 19 15:29:57 2008 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.289 by root, Mon Nov 17 08:25:06 2008 UTC vs.
Revision 1.309 by root, Wed Nov 19 15:29:57 2008 UTC