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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.220 by root, Thu Jan 10 05:43:14 2008 UTC

…		…
10	#include "patchlevel.h"	10	#include "patchlevel.h"
11		11
12	#include <stdio.h>	12	#include <stdio.h>
13	#include <errno.h>	13	#include <errno.h>
14	#include <assert.h>	14	#include <assert.h>
		15	#include <inttypes.h> /* portable stdint.h */
15		16
16	#ifdef HAVE_MMAP	17	#ifdef HAVE_MMAP
17	# include <unistd.h>	18	# include <unistd.h>
18	# include <sys/mman.h>	19	# include <sys/mman.h>
19	# ifndef MAP_ANONYMOUS	20	# ifndef MAP_ANONYMOUS
…		…
144	static size_t coro_stacksize = CORO_STACKSIZE;	145	static size_t coro_stacksize = CORO_STACKSIZE;
145	static struct CoroAPI coroapi;	146	static struct CoroAPI coroapi;
146	static AV main_mainstack; / used to differentiate between $main and others */	147	static AV main_mainstack; / used to differentiate between $main and others */
147	static JMPENV *main_top_env;	148	static JMPENV *main_top_env;
148	static HV coro_state_stash, coro_stash;	149	static HV coro_state_stash, coro_stash;
149	static SV coro_mortal; / will be freed after next transfer */	150	static volatile SV coro_mortal; / will be freed after next transfer */
150		151
151	static GV irsgv; / $/ */	152	static GV irsgv; / $/ */
152	static GV stdoutgv; / STDOUT /	153	static GV stdoutgv; / STDOUT /
		154	static SV *rv_diehook;
		155	static SV *rv_warnhook;
		156	static HV hv_sig; / %SIG */
153		157
154	/* async_pool helper stuff */	158	/* async_pool helper stuff */
155	static SV *sv_pool_rss;	159	static SV *sv_pool_rss;
156	static SV *sv_pool_size;	160	static SV *sv_pool_size;
157	static AV *av_async_pool;	161	static AV *av_async_pool;
…		…
215		219
216	/* process data */	220	/* process data */
217	AV *mainstack;	221	AV *mainstack;
218	perl_slots slot; / basically the saved sp */	222	perl_slots slot; / basically the saved sp */
219		223
220	/* data associated with this coroutine (initial args) */	224	AV args; / data associated with this coroutine (initial args) */
221	AV *args;	225	int refcnt; /* coroutines are refcounted, yes */
222	int refcnt;
223	int flags; /* CF_ flags */	226	int flags; /* CF_ flags */
		227	HV hv; / the perl hash associated with this coro, if any */
224		228
225	/* statistics */	229	/* statistics */
226	int usecount; /* number of transfers to this coro */	230	int usecount; /* number of transfers to this coro */
227		231
228	/* coro process data */	232	/* coro process data */
229	int prio;	233	int prio;
230	SV *throw;	234	SV throw; / exception to be thrown */
231		235
232	/* async_pool */	236	/* async_pool */
233	SV *saved_deffh;	237	SV *saved_deffh;
234		238
235	/* linked list */	239	/* linked list */
236	struct coro next, prev;	240	struct coro next, prev;
237	HV hv; / the perl hash associated with this coro, if any */
238	};	241	};
239		242
240	typedef struct coro *Coro__State;	243	typedef struct coro *Coro__State;
241	typedef struct coro *Coro__State_or_hashref;	244	typedef struct coro *Coro__State_or_hashref;
242		245
…		…
254	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
255	static int coro_nready;	258	static int coro_nready;
256	static struct coro *coro_first;	259	static struct coro *coro_first;
257		260
258	/ lowlevel stuff ********************************************************/	261	/ lowlevel stuff ********************************************************/
		262
		263	static SV *
		264	coro_get_sv (pTHX_ const char *name, int create)
		265	{
		266	#if PERL_VERSION_ATLEAST (5,9,0)
		267	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		268	get_sv (name, create);
		269	#endif
		270	return get_sv (name, create);
		271	}
		272
		273	static AV *
		274	coro_get_av (pTHX_ const char *name, int create)
		275	{
		276	#if PERL_VERSION_ATLEAST (5,9,0)
		277	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		278	get_av (name, create);
		279	#endif
		280	return get_av (name, create);
		281	}
		282
		283	static HV *
		284	coro_get_hv (pTHX_ const char *name, int create)
		285	{
		286	#if PERL_VERSION_ATLEAST (5,9,0)
		287	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		288	get_hv (name, create);
		289	#endif
		290	return get_hv (name, create);
		291	}
259		292
260	static AV *	293	static AV *
261	coro_clone_padlist (pTHX_ CV *cv)	294	coro_clone_padlist (pTHX_ CV *cv)
262	{	295	{
263	AV *padlist = CvPADLIST (cv);	296	AV *padlist = CvPADLIST (cv);
…		…
311		344
312	/* casting is fun. */	345	/* casting is fun. */
313	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
314	free_padlist (aTHX_ padlist);	347	free_padlist (aTHX_ padlist);
315		348
316	SvREFCNT_dec (av);
317
318	return 0;	349	return 0;
319	}	350	}
320		351
321	#define PERL_MAGIC_coro PERL_MAGIC_ext	352	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		353	#define CORO_MAGIC_type_state PERL_MAGIC_ext
322		354
323	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	355	static MGVTBL coro_cv_vtbl = {
		356	0, 0, 0, 0,
		357	coro_cv_free
		358	};
324		359
325	#define CORO_MAGIC(cv) \	360	#define CORO_MAGIC(sv,type) \
326	SvMAGIC (cv) \	361	SvMAGIC (sv) \
327	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	362	? SvMAGIC (sv)->mg_type == type \
328	? SvMAGIC (cv) \	363	? SvMAGIC (sv) \
329	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	364	: mg_find (sv, type) \
330	: 0	365	: 0
		366
		367	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		368	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
331		369
332	static struct coro *	370	static struct coro *
333	SvSTATE_ (pTHX_ SV *coro)	371	SvSTATE_ (pTHX_ SV *coro)
334	{	372	{
335	HV *stash;	373	HV *stash;
…		…
347	/* very slow, but rare, check */	385	/* very slow, but rare, check */
348	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	386	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
349	croak ("Coro::State object required");	387	croak ("Coro::State object required");
350	}	388	}
351		389
352	mg = CORO_MAGIC (coro);	390	mg = CORO_MAGIC_state (coro);
353	return (struct coro *)mg->mg_ptr;	391	return (struct coro *)mg->mg_ptr;
354	}	392	}
355		393
356	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	394	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
357		395
358	/* the next two functions merely cache the padlists */	396	/* the next two functions merely cache the padlists */
359	static void	397	static void
360	get_padlist (pTHX_ CV *cv)	398	get_padlist (pTHX_ CV *cv)
361	{	399	{
362	MAGIC *mg = CORO_MAGIC (cv);	400	MAGIC *mg = CORO_MAGIC_cv (cv);
363	AV *av;	401	AV *av;
364		402
365	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))	403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
366	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
367	else	405	else
…		…
379	}	417	}
380		418
381	static void	419	static void
382	put_padlist (pTHX_ CV *cv)	420	put_padlist (pTHX_ CV *cv)
383	{	421	{
384	MAGIC *mg = CORO_MAGIC (cv);	422	MAGIC *mg = CORO_MAGIC_cv (cv);
385	AV *av;	423	AV *av;
386		424
387	if (expect_false (!mg))	425	if (expect_false (!mg))
388	{	426	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
389	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
390	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
391	mg->mg_virtual = &vtbl_coro;
392	mg->mg_obj = (SV *)newAV ();
393	}
394		427
395	av = (AV *)mg->mg_obj;	428	av = (AV *)mg->mg_obj;
396		429
397	if (expect_false (AvFILLp (av) >= AvMAX (av)))	430	if (expect_false (AvFILLp (av) >= AvMAX (av)))
398	av_extend (av, AvMAX (av) + 1);	431	av_extend (av, AvMAX (av) + 1);
…		…
485		518
486	PUTBACK;	519	PUTBACK;
487	}	520	}
488		521
489	/* allocate some space on the context stack for our purposes */	522	/* allocate some space on the context stack for our purposes */
		523	/* we manually unroll here, as usually 2 slots is enough */
		524	if (SLOT_COUNT >= 1) CXINC;
		525	if (SLOT_COUNT >= 2) CXINC;
		526	if (SLOT_COUNT >= 3) CXINC;
490	{	527	{
491	/* we manually unroll here, as usually 2 slots is enough */
492	int i;	528	int i;
493	if (SLOT_COUNT >= 1) CXINC;
494	if (SLOT_COUNT >= 2) CXINC;
495	if (SLOT_COUNT >= 3) CXINC;
496	for (i = 3; i < SLOT_COUNT; ++i)	529	for (i = 3; i < SLOT_COUNT; ++i)
497	CXINC;	530	CXINC;
498
499	cxstack_ix -= SLOT_COUNT; /* undo allocation */
500	}	531	}
		532	cxstack_ix -= SLOT_COUNT; /* undo allocation */
501		533
502	c->mainstack = PL_mainstack;	534	c->mainstack = PL_mainstack;
503		535
504	{	536	{
505	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);	537	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
…		…
632	return rss;	664	return rss;
633	}	665	}
634		666
635	/ coroutine stack handling **********************************************/	667	/ coroutine stack handling **********************************************/
636		668
		669	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		670	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		671
		672	/*
		673	* This overrides the default magic get method of %SIG elements.
		674	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		675	* and instead of tryign to save and restore the hash elements, we just provide
		676	* readback here.
		677	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		678	* not expecting this to actually change the hook. This is a potential problem
		679	* when a schedule happens then, but we ignore this.
		680	*/
		681	static int
		682	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		683	{
		684	const char *s = MgPV_nolen_const (mg);
		685
		686	if (*s == '_')
		687	{
		688	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		689	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		690	}
		691
		692	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		693	}
		694
		695	static int
		696	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		697	{
		698	const char *s = MgPV_nolen_const (mg);
		699
		700	if (*s == '_')
		701	{
		702	SV **svp = 0;
		703
		704	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		705	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		706
		707	if (svp)
		708	{
		709	SV old = svp;
		710	*svp = newSVsv (sv);
		711	SvREFCNT_dec (old);
		712	return;
		713	}
		714	}
		715
		716	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		717	}
		718
637	static void	719	static void
638	coro_setup (pTHX_ struct coro *coro)	720	coro_setup (pTHX_ struct coro *coro)
639	{	721	{
640	/*	722	/*
641	* emulate part of the perl startup here.	723	* emulate part of the perl startup here.
…		…
649	PL_curpm = 0;	731	PL_curpm = 0;
650	PL_curpad = 0;	732	PL_curpad = 0;
651	PL_localizing = 0;	733	PL_localizing = 0;
652	PL_dirty = 0;	734	PL_dirty = 0;
653	PL_restartop = 0;	735	PL_restartop = 0;
654	PL_diehook = 0;	736
655	PL_warnhook = 0;	737	/* recreate the die/warn hooks */
		738	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		739	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
656		740
657	GvSV (PL_defgv) = newSV (0);	741	GvSV (PL_defgv) = newSV (0);
658	GvAV (PL_defgv) = coro->args; coro->args = 0;	742	GvAV (PL_defgv) = coro->args; coro->args = 0;
659	GvSV (PL_errgv) = newSV (0);	743	GvSV (PL_errgv) = newSV (0);
660	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);	744	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
…		…
675	PL_op = (OP *)&myop;	759	PL_op = (OP *)&myop;
676	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	760	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
677	SPAGAIN;	761	SPAGAIN;
678	}	762	}
679		763
680	ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */	764	/* this newly created coroutine might be run on an existing cctx which most
		765	* likely was suspended in set_stacklevel, called from entersub.
		766	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		767	* so we ENTER here for symmetry
		768	*/
		769	ENTER;
681	}	770	}
682		771
683	static void	772	static void
684	coro_destroy (pTHX_ struct coro *coro)	773	coro_destroy (pTHX_ struct coro *coro)
685	{	774	{
…		…
852		941
853	/* inject a fake call to Coro::State::_cctx_init into the execution */	942	/* inject a fake call to Coro::State::_cctx_init into the execution */
854	/* _cctx_init should be careful, as it could be called at almost any time */	943	/* _cctx_init should be careful, as it could be called at almost any time */
855	/* during execution of a perl program */	944	/* during execution of a perl program */
856	static void NOINLINE	945	static void NOINLINE
857	prepare_cctx (pTHX_ coro_cctx *cctx)	946	cctx_prepare (pTHX_ coro_cctx *cctx)
858	{	947	{
859	dSP;	948	dSP;
860	LOGOP myop;	949	LOGOP myop;
861		950
862	PL_top_env = &PL_start_env;	951	PL_top_env = &PL_start_env;
…		…
880		969
881	/*	970	/*
882	* this is a _very_ stripped down perl interpreter ;)	971	* this is a _very_ stripped down perl interpreter ;)
883	*/	972	*/
884	static void	973	static void
885	coro_run (void *arg)	974	cctx_run (void *arg)
886	{	975	{
887	dTHX;	976	dTHX;
888		977
889	/* coro_run is the alternative tail of transfer(), so unlock here. */	978	/* cctx_run is the alternative tail of transfer(), so unlock here. */
890	UNLOCK;	979	UNLOCK;
891		980
892	/* we now skip the entersub that lead to transfer() */	981	/* we now skip the entersub that lead to transfer() */
893	PL_op = PL_op->op_next;	982	PL_op = PL_op->op_next;
894		983
895	/* inject a fake subroutine call to cctx_init */	984	/* inject a fake subroutine call to cctx_init */
896	prepare_cctx (aTHX_ (coro_cctx *)arg);	985	cctx_prepare (aTHX_ (coro_cctx *)arg);
897		986
898	/* somebody or something will hit me for both perl_run and PL_restartop */	987	/* somebody or something will hit me for both perl_run and PL_restartop */
899	PL_restartop = PL_op;	988	PL_restartop = PL_op;
900	perl_run (PL_curinterp);	989	perl_run (PL_curinterp);
901		990
…		…
920	++cctx_count;	1009	++cctx_count;
921		1010
922	Newz (0, cctx, 1, coro_cctx);	1011	Newz (0, cctx, 1, coro_cctx);
923		1012
924	#if HAVE_MMAP	1013	#if HAVE_MMAP
925
926	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1014	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
927	/* mmap supposedly does allocate-on-write for us */	1015	/* mmap supposedly does allocate-on-write for us */
928	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1016	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
929		1017
930	if (cctx->sptr != (void *)-1)	1018	if (cctx->sptr != (void *)-1)
…		…
951	stack_start = cctx->sptr;	1039	stack_start = cctx->sptr;
952	stack_size = cctx->ssize;	1040	stack_size = cctx->ssize;
953	}	1041	}
954		1042
955	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1043	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
956	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1044	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
957		1045
958	return cctx;	1046	return cctx;
959	}	1047	}
960		1048
961	static void	1049	static void
…		…
1049	/* always use the TRANSFER macro */	1137	/* always use the TRANSFER macro */
1050	static void NOINLINE	1138	static void NOINLINE
1051	transfer (pTHX_ struct coro prev, struct coro next)	1139	transfer (pTHX_ struct coro prev, struct coro next)
1052	{	1140	{
1053	dSTACKLEVEL;	1141	dSTACKLEVEL;
		1142	static volatile int has_throw;
1054		1143
1055	/* sometimes transfer is only called to set idle_sp */	1144	/* sometimes transfer is only called to set idle_sp */
1056	if (expect_false (!next))	1145	if (expect_false (!next))
1057	{	1146	{
1058	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1147	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
…		…
1073	prev->flags &= ~CF_RUNNING;	1162	prev->flags &= ~CF_RUNNING;
1074	next->flags \|= CF_RUNNING;	1163	next->flags \|= CF_RUNNING;
1075		1164
1076	LOCK;	1165	LOCK;
1077		1166
		1167	/* first get rid of the old state */
		1168	save_perl (aTHX_ prev);
		1169
1078	if (expect_false (next->flags & CF_NEW))	1170	if (expect_false (next->flags & CF_NEW))
1079	{	1171	{
1080	/* need to start coroutine */	1172	/* need to start coroutine */
1081	next->flags &= ~CF_NEW;	1173	next->flags &= ~CF_NEW;
1082	/* first get rid of the old state */
1083	save_perl (aTHX_ prev);
1084	/* setup coroutine call */	1174	/* setup coroutine call */
1085	coro_setup (aTHX_ next);	1175	coro_setup (aTHX_ next);
1086	}	1176	}
1087	else	1177	else
1088	{
1089	/* coroutine already started */
1090	save_perl (aTHX_ prev);
1091	load_perl (aTHX_ next);	1178	load_perl (aTHX_ next);
1092	}
1093		1179
1094	prev__cctx = prev->cctx;	1180	prev__cctx = prev->cctx;
1095		1181
1096	/* possibly "free" the cctx */	1182	/* possibly "free" the cctx */
1097	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))	1183	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
…		…
1102	prev->cctx = 0;	1188	prev->cctx = 0;
1103		1189
1104	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */	1190	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1105	/* without this the next cctx_get might destroy the prev__cctx while still in use */	1191	/* without this the next cctx_get might destroy the prev__cctx while still in use */
1106	if (expect_false (CCTX_EXPIRED (prev__cctx)))	1192	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1193	if (!next->cctx)
1107	next->cctx = cctx_get (aTHX);	1194	next->cctx = cctx_get (aTHX);
1108		1195
1109	cctx_put (prev__cctx);	1196	cctx_put (prev__cctx);
1110	}	1197	}
1111		1198
1112	++next->usecount;	1199	++next->usecount;
1113		1200
1114	if (expect_true (!next->cctx))	1201	if (expect_true (!next->cctx))
1115	next->cctx = cctx_get (aTHX);	1202	next->cctx = cctx_get (aTHX);
		1203
		1204	has_throw = !!next->throw;
1116		1205
1117	if (expect_false (prev__cctx != next->cctx))	1206	if (expect_false (prev__cctx != next->cctx))
1118	{	1207	{
1119	prev__cctx->top_env = PL_top_env;	1208	prev__cctx->top_env = PL_top_env;
1120	PL_top_env = next->cctx->top_env;	1209	PL_top_env = next->cctx->top_env;
…		…
1122	}	1211	}
1123		1212
1124	free_coro_mortal (aTHX);	1213	free_coro_mortal (aTHX);
1125	UNLOCK;	1214	UNLOCK;
1126		1215
1127	if (expect_false (prev->throw \|\| next->throw))	1216	if (expect_false (has_throw))
1128	{	1217	{
1129	struct coro *coro = SvSTATE (coro_current);	1218	struct coro *coro = SvSTATE (coro_current);
1130		1219
1131	if (coro->throw)	1220	if (coro->throw)
1132	{	1221	{
…		…
1258	{	1347	{
1259	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1348	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1260	}	1349	}
1261		1350
1262	static SV *	1351	static SV *
1263	coro_deq (pTHX_ int min_prio)	1352	coro_deq (pTHX)
1264	{	1353	{
1265	int prio = PRIO_MAX - PRIO_MIN;	1354	int prio;
1266		1355
1267	min_prio -= PRIO_MIN;
1268	if (min_prio < 0)
1269	min_prio = 0;
1270
1271	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1356	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1272	if (AvFILLp (coro_ready [prio]) >= 0)	1357	if (AvFILLp (coro_ready [prio]) >= 0)
1273	return av_shift (coro_ready [prio]);	1358	return av_shift (coro_ready [prio]);
1274		1359
1275	return 0;	1360	return 0;
1276	}	1361	}
…		…
1312	SV prev_sv, next_sv;	1397	SV prev_sv, next_sv;
1313		1398
1314	for (;;)	1399	for (;;)
1315	{	1400	{
1316	LOCK;	1401	LOCK;
1317	next_sv = coro_deq (aTHX_ PRIO_MIN);	1402	next_sv = coro_deq (aTHX);
1318		1403
1319	/* nothing to schedule: call the idle handler */	1404	/* nothing to schedule: call the idle handler */
1320	if (expect_false (!next_sv))	1405	if (expect_false (!next_sv))
1321	{	1406	{
1322	dSP;	1407	dSP;
…		…
1326	SAVETMPS;	1411	SAVETMPS;
1327		1412
1328	PUSHMARK (SP);	1413	PUSHMARK (SP);
1329	PUTBACK;	1414	PUTBACK;
1330	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1415	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1416	SPAGAIN;
1331		1417
1332	FREETMPS;	1418	FREETMPS;
1333	LEAVE;	1419	LEAVE;
1334	continue;	1420	continue;
1335	}	1421	}
…		…
1465	BOOT_PAGESIZE;	1551	BOOT_PAGESIZE;
1466		1552
1467	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);	1553	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
1468	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);	1554	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
1469		1555
		1556	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1557	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1558	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1559	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1560
		1561	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1562	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1563	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1564
1470	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1565	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1471		1566
1472	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1567	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1473	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1568	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1474	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1569	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
…		…
1479		1574
1480	while (main_top_env->je_prev)	1575	while (main_top_env->je_prev)
1481	main_top_env = main_top_env->je_prev;	1576	main_top_env = main_top_env->je_prev;
1482		1577
1483	coroapi.ver = CORO_API_VERSION;	1578	coroapi.ver = CORO_API_VERSION;
		1579	coroapi.rev = CORO_API_REVISION;
1484	coroapi.transfer = api_transfer;	1580	coroapi.transfer = api_transfer;
1485		1581
1486	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1582	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1487	}	1583	}
1488		1584
1489	SV *	1585	SV *
1490	new (char *klass, ...)	1586	new (char *klass, ...)
1491	CODE:	1587	CODE:
1492	{	1588	{
1493	struct coro *coro;	1589	struct coro *coro;
		1590	MAGIC *mg;
1494	HV *hv;	1591	HV *hv;
1495	int i;	1592	int i;
1496		1593
1497	Newz (0, coro, 1, struct coro);	1594	Newz (0, coro, 1, struct coro);
1498	coro->args = newAV ();	1595	coro->args = newAV ();
…		…
1501	if (coro_first) coro_first->prev = coro;	1598	if (coro_first) coro_first->prev = coro;
1502	coro->next = coro_first;	1599	coro->next = coro_first;
1503	coro_first = coro;	1600	coro_first = coro;
1504		1601
1505	coro->hv = hv = newHV ();	1602	coro->hv = hv = newHV ();
1506	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1603	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1604	mg->mg_flags \|= MGf_DUP;
1507	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1605	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1508		1606
1509	av_extend (coro->args, items - 1);	1607	av_extend (coro->args, items - 1);
1510	for (i = 1; i < items; i++)	1608	for (i = 1; i < items; i++)
1511	av_push (coro->args, newSVsv (ST (i)));	1609	av_push (coro->args, newSVsv (ST (i)));
…		…
1525	Coro::cede_notself = 4	1623	Coro::cede_notself = 4
1526	CODE:	1624	CODE:
1527	{	1625	{
1528	struct transfer_args ta;	1626	struct transfer_args ta;
1529		1627
		1628	PUTBACK;
1530	switch (ix)	1629	switch (ix)
1531	{	1630	{
1532	case 0:	1631	case 0:
1533	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1632	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1534	ta.next = 0;	1633	ta.next = 0;
…		…
1553	if (!prepare_cede_notself (aTHX_ &ta))	1652	if (!prepare_cede_notself (aTHX_ &ta))
1554	XSRETURN_EMPTY;	1653	XSRETURN_EMPTY;
1555		1654
1556	break;	1655	break;
1557	}	1656	}
		1657	SPAGAIN;
1558		1658
1559	BARRIER;	1659	BARRIER;
		1660	PUTBACK;
1560	TRANSFER (ta);	1661	TRANSFER (ta);
1561		1662	SPAGAIN; /* might be the sp of a different coroutine now */
1562	if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))	1663	/* be extra careful not to ever do anything after TRANSFER */
1563	XSRETURN_YES;
1564	}	1664	}
1565		1665
1566	bool	1666	bool
1567	_destroy (SV *coro_sv)	1667	_destroy (SV *coro_sv)
1568	CODE:	1668	CODE:
…		…
1620	{	1720	{
1621	struct coro temp;	1721	struct coro temp;
1622		1722
1623	if (!(coro->flags & CF_RUNNING))	1723	if (!(coro->flags & CF_RUNNING))
1624	{	1724	{
		1725	PUTBACK;
1625	save_perl (aTHX_ &temp);	1726	save_perl (aTHX_ &temp);
1626	load_perl (aTHX_ coro);	1727	load_perl (aTHX_ coro);
1627	}	1728	}
1628		1729
1629	{	1730	{
1630	dSP;	1731	dSP;
1631	ENTER;	1732	ENTER;
1632	SAVETMPS;	1733	SAVETMPS;
		1734	PUTBACK;
		1735	PUSHSTACK;
1633	PUSHMARK (SP);	1736	PUSHMARK (SP);
1634	PUTBACK;
1635		1737
1636	if (ix)	1738	if (ix)
1637	eval_sv (coderef, 0);	1739	eval_sv (coderef, 0);
1638	else	1740	else
1639	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1741	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
1640		1742
		1743	POPSTACK;
1641	SPAGAIN;	1744	SPAGAIN;
1642	FREETMPS;	1745	FREETMPS;
1643	LEAVE;	1746	LEAVE;
1644	PUTBACK;	1747	PUTBACK;
1645	}	1748	}
1646		1749
1647	if (!(coro->flags & CF_RUNNING))	1750	if (!(coro->flags & CF_RUNNING))
1648	{	1751	{
1649	save_perl (aTHX_ coro);	1752	save_perl (aTHX_ coro);
1650	load_perl (aTHX_ &temp);	1753	load_perl (aTHX_ &temp);
		1754	SPAGAIN;
1651	}	1755	}
1652	}	1756	}
1653	}	1757	}
1654		1758
1655	SV *	1759	SV *
…		…
1703		1807
1704	BOOT:	1808	BOOT:
1705	{	1809	{
1706	int i;	1810	int i;
1707		1811
1708	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);	1812	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1709	get_sv ("Coro::POOL_RSS" , TRUE); /* silence stupid 5.10 warning */
1710	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);	1813	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1711	get_sv ("Coro::POOL_SIZE" , TRUE); /* silence stupid 5.10 warning */
1712	av_async_pool = get_av ("Coro::async_pool", TRUE);	1814	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1713	get_av ("Coro::async_pool", TRUE); /* silence stupid 5.10 warning */
1714		1815
1715	coro_current = get_sv ("Coro::current", FALSE);	1816	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1716	SvREADONLY_on (coro_current);	1817	SvREADONLY_on (coro_current);
1717		1818
1718	coro_stash = gv_stashpv ("Coro", TRUE);	1819	coro_stash = gv_stashpv ("Coro", TRUE);
1719		1820
1720	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1821	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));

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Comparing Coro/Coro/State.xs (file contents): Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs. Revision 1.220 by root, Thu Jan 10 05:43:14 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.198 by root, Sun Oct 7 03:58:37 2007 UTC vs.
Revision 1.220 by root, Thu Jan 10 05:43:14 2008 UTC