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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.68 by root, Mon Dec 12 20:28:30 2005 UTC vs.
Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC

…		…
27	# ifndef IS_PADCONST	27	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	28	# define IS_PADCONST(v) 0
29	# endif	29	# endif
30	#endif	30	#endif
31		31
32	#include <signal.h>	32	#include <errno.h>
		33
		34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		35	# undef STACKGUARD
		36	#endif
		37
		38	#ifndef STACKGUARD
		39	# define STACKGUARD 0
		40	#endif
33		41
34	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
35	# include <unistd.h>	43	# include <unistd.h>
36	# include <sys/mman.h>	44	# include <sys/mman.h>
37	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
…		…
39	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
40	# else	48	# else
41	# undef HAVE_MMAP	49	# undef HAVE_MMAP
42	# endif	50	# endif
43	# endif	51	# endif
		52	# include <limits.h>
		53	# ifndef PAGESIZE
		54	# define PAGESIZE pagesize
		55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		56	static long pagesize;
		57	# else
		58	# define BOOT_PAGESIZE
44	#endif	59	# endif
		60	#endif
45		61
46	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
47	#define UCORO_STATE "_coro_state"
48		63
49	/* The next macro should declare a variable stacklevel that contains and approximation	64	/* The next macro should declare a variable stacklevel that contains and approximation
50	* to the current C stack pointer. Its property is that it changes with each call	65	* to the current C stack pointer. Its property is that it changes with each call
51	* and should be unique. */	66	* and should be unique. */
52	#define dSTACKLEVEL void *stacklevel = &stacklevel	67	#define dSTACKLEVEL void *stacklevel = &stacklevel
…		…
57		72
58	#include "CoroAPI.h"	73	#include "CoroAPI.h"
59		74
60	#ifdef USE_ITHREADS	75	#ifdef USE_ITHREADS
61	static perl_mutex coro_mutex;	76	static perl_mutex coro_mutex;
62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
64	#else	79	#else
65	# define LOCK 0	80	# define LOCK (void)0
66	# define UNLOCK 0	81	# define UNLOCK (void)0
67	#endif	82	#endif
68		83
69	static struct CoroAPI coroapi;	84	static struct CoroAPI coroapi;
70	static AV main_mainstack; / used to differentiate between $main and others */	85	static AV main_mainstack; / used to differentiate between $main and others */
71	static HV *coro_state_stash;	86	static HV coro_state_stash, coro_stash;
72	static SV *ucoro_state_sv;
73	static U32 ucoro_state_hash;
74	static SV coro_mortal; / will be freed after next transfer */	87	static SV coro_mortal; / will be freed after next transfer */
75		88
76	/* this is actually not only the c stack but also c registers etc... */	89	/* this is actually not just the c stack but also c registers etc... */
77	typedef struct {	90	typedef struct coro_stack {
78	int refcnt; /* pointer reference counter */	91	struct coro_stack *next;
79	int usecnt; /* shared by how many coroutines */
80	int gencnt; /* generation counter */
81		92
82	coro_context cctx;	93	void *idle_sp;
83
84	void *sptr;	94	void *sptr;
85	long ssize; /* positive == mmap, otherwise malloc */	95	long ssize; /* positive == mmap, otherwise malloc */
		96
		97	/* cpu state */
		98	coro_context cctx;
86	} coro_stack;	99	} coro_stack;
87		100
		101	static coro_stack *main_stack;
		102
88	struct coro {	103	struct coro {
89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
90	JMPENV start_env;
91
92	/* the optional C context */
93	coro_stack *stack;
94	void *cursp;
95	int gencnt;
96
97	/* optionally saved, might be zero */	104	/* optionally saved, might be zero */
98	AV *defav;	105	AV *defav;
99	SV *defsv;	106	SV *defsv;
100	SV *errsv;	107	SV *errsv;
101		108
102	/* saved global state not related to stacks */	109	/* saved global state not related to stacks */
103	U8 dowarn;	110	U8 dowarn;
104	I32 in_eval;	111	I32 in_eval;
		112
		113	/* the c stack, if any */
		114	coro_stack *stack;
105		115
106	/* the stacks and related info (callchain etc..) */	116	/* the stacks and related info (callchain etc..) */
107	PERL_SI *curstackinfo;	117	PERL_SI *curstackinfo;
108	AV *curstack;	118	AV *curstack;
109	AV *mainstack;	119	AV *mainstack;
…		…
132	I32 retstack_max;	142	I32 retstack_max;
133	PMOP *curpm;	143	PMOP *curpm;
134	COP *curcop;	144	COP *curcop;
135	JMPENV *top_env;	145	JMPENV *top_env;
136		146
		147	/* coro process data */
		148	int prio;
		149
137	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
138	AV *args;	151	AV *args;
		152	int refcnt;
139	};	153	};
140		154
141	typedef struct coro *Coro__State;	155	typedef struct coro *Coro__State;
142	typedef struct coro *Coro__State_or_hashref;	156	typedef struct coro *Coro__State_or_hashref;
143		157
144	/* mostly copied from op.c:cv_clone2 */	158	static AV *
145	STATIC AV *	159	coro_clone_padlist (pTHX_ CV *cv)
146	clone_padlist (pTHX_ AV *protopadlist)
147	{	160	{
148	AV *av;	161	AV *padlist = CvPADLIST (cv);
149	I32 ix;
150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
152	SV **pname = AvARRAY (protopad_name);
153	SV **ppad = AvARRAY (protopad);
154	I32 fname = AvFILLp (protopad_name);
155	I32 fpad = AvFILLp (protopad);
156	AV newpadlist, newpad_name, *newpad;	162	AV newpadlist, newpad;
157	SV **npad;
158
159	newpad_name = newAV ();
160	for (ix = fname; ix >= 0; ix--)
161	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
162
163	newpad = newAV ();
164	av_fill (newpad, AvFILLp (protopad));
165	npad = AvARRAY (newpad);
166		163
167	newpadlist = newAV ();	164	newpadlist = newAV ();
168	AvREAL_off (newpadlist);	165	AvREAL_off (newpadlist);
169	av_store (newpadlist, 0, (SV *) newpad_name);	166	#if PERL_VERSION < 9
		167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		168	#else
		169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		170	#endif
		171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		172	--AvFILLp (padlist);
		173
		174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
170	av_store (newpadlist, 1, (SV *) newpad);	175	av_store (newpadlist, 1, (SV *)newpad);
171
172	av = newAV (); /* will be @_ */
173	av_extend (av, 0);
174	av_store (newpad, 0, (SV *) av);
175	AvFLAGS (av) = AVf_REIFY;
176
177	for (ix = fpad; ix > 0; ix--)
178	{
179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
180
181	if (namesv && namesv != &PL_sv_undef)
182	{
183	char name = SvPVX (namesv); / XXX */
184
185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
186	{ /* lexical from outside? */
187	npad[ix] = SvREFCNT_inc (ppad[ix]);
188	}
189	else
190	{ /* our own lexical */
191	SV *sv;
192	if (*name == '&')
193	sv = SvREFCNT_inc (ppad[ix]);
194	else if (*name == '@')
195	sv = (SV *) newAV ();
196	else if (*name == '%')
197	sv = (SV *) newHV ();
198	else
199	sv = NEWSV (0, 0);
200
201	#ifdef SvPADBUSY
202	if (!SvPADBUSY (sv))
203	#endif
204	SvPADMY_on (sv);
205
206	npad[ix] = sv;
207	}
208	}
209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
210	{
211	npad[ix] = SvREFCNT_inc (ppad[ix]);
212	}
213	else
214	{
215	SV *sv = NEWSV (0, 0);
216	SvPADTMP_on (sv);
217	npad[ix] = sv;
218	}
219	}
220
221	#if 0 /* return -ENOTUNDERSTOOD */
222	/* Now that vars are all in place, clone nested closures. */
223
224	for (ix = fpad; ix > 0; ix--) {
225	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;
226	if (namesv
227	&& namesv != &PL_sv_undef
228	&& !(SvFLAGS(namesv) & SVf_FAKE)
229	&& *SvPVX(namesv) == '&'
230	&& CvCLONE(ppad[ix]))
231	{
232	CV kid = cv_clone((CV)ppad[ix]);
233	SvREFCNT_dec(ppad[ix]);
234	CvCLONE_on(kid);
235	SvPADMY_on(kid);
236	npad[ix] = (SV*)kid;
237	}
238	}
239	#endif
240		176
241	return newpadlist;	177	return newpadlist;
242	}	178	}
243		179
244	STATIC void	180	static void
245	free_padlist (pTHX_ AV *padlist)	181	free_padlist (pTHX_ AV *padlist)
246	{	182	{
247	/* may be during global destruction */	183	/* may be during global destruction */
248	if (SvREFCNT (padlist))	184	if (SvREFCNT (padlist))
249	{	185	{
…		…
263		199
264	SvREFCNT_dec ((SV*)padlist);	200	SvREFCNT_dec ((SV*)padlist);
265	}	201	}
266	}	202	}
267		203
268	STATIC int	204	static int
269	coro_cv_free (pTHX_ SV sv, MAGIC mg)	205	coro_cv_free (pTHX_ SV sv, MAGIC mg)
270	{	206	{
271	AV *padlist;	207	AV *padlist;
272	AV av = (AV )mg->mg_obj;	208	AV av = (AV )mg->mg_obj;
273		209
274	/* casting is fun. */	210	/* casting is fun. */
275	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
276	free_padlist (aTHX_ padlist);	212	free_padlist (aTHX_ padlist);
277		213
278	SvREFCNT_dec (av);	214	SvREFCNT_dec (av);
		215
		216	return 0;
279	}	217	}
280		218
281	#define PERL_MAGIC_coro PERL_MAGIC_ext	219	#define PERL_MAGIC_coro PERL_MAGIC_ext
282		220
283	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
284		222
285	/* the next two functions merely cache the padlists */	223	/* the next two functions merely cache the padlists */
286	STATIC void	224	static void
287	get_padlist (pTHX_ CV *cv)	225	get_padlist (pTHX_ CV *cv)
288	{	226	{
289	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
290		228
291	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
292	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
293	else	231	else
		232	{
		233	#if 0
		234	/* this should work - but it doesn't :( */
		235	CV *cp = Perl_cv_clone (aTHX_ cv);
		236	CvPADLIST (cv) = CvPADLIST (cp);
		237	CvPADLIST (cp) = 0;
		238	SvREFCNT_dec (cp);
		239	#else
294	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));	240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		241	#endif
		242	}
295	}	243	}
296		244
297	STATIC void	245	static void
298	put_padlist (pTHX_ CV *cv)	246	put_padlist (pTHX_ CV *cv)
299	{	247	{
300	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
301		249
302	if (!mg)	250	if (!mg)
…		…
345	PL_scopestack_ix = c->scopestack_ix;	293	PL_scopestack_ix = c->scopestack_ix;
346	PL_scopestack_max = c->scopestack_max;	294	PL_scopestack_max = c->scopestack_max;
347	PL_savestack = c->savestack;	295	PL_savestack = c->savestack;
348	PL_savestack_ix = c->savestack_ix;	296	PL_savestack_ix = c->savestack_ix;
349	PL_savestack_max = c->savestack_max;	297	PL_savestack_max = c->savestack_max;
		298	#if PERL_VERSION < 9
350	PL_retstack = c->retstack;	299	PL_retstack = c->retstack;
351	PL_retstack_ix = c->retstack_ix;	300	PL_retstack_ix = c->retstack_ix;
352	PL_retstack_max = c->retstack_max;	301	PL_retstack_max = c->retstack_max;
		302	#endif
353	PL_curpm = c->curpm;	303	PL_curpm = c->curpm;
354	PL_curcop = c->curcop;	304	PL_curcop = c->curcop;
355	PL_top_env = c->top_env;	305	PL_top_env = c->top_env;
356		306
357	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
…		…
417	}	367	}
418		368
419	PUSHs ((SV *)CvPADLIST(cv));	369	PUSHs ((SV *)CvPADLIST(cv));
420	PUSHs ((SV *)cv);	370	PUSHs ((SV *)cv);
421		371
422	get_padlist (aTHX_ cv); /* this is a monster */	372	get_padlist (aTHX_ cv);
423	}	373	}
424	}	374	}
425	#ifdef CXt_FORMAT	375	#ifdef CXt_FORMAT
426	else if (CxTYPE(cx) == CXt_FORMAT)	376	else if (CxTYPE(cx) == CXt_FORMAT)
427	{	377	{
…		…
471	c->scopestack_ix = PL_scopestack_ix;	421	c->scopestack_ix = PL_scopestack_ix;
472	c->scopestack_max = PL_scopestack_max;	422	c->scopestack_max = PL_scopestack_max;
473	c->savestack = PL_savestack;	423	c->savestack = PL_savestack;
474	c->savestack_ix = PL_savestack_ix;	424	c->savestack_ix = PL_savestack_ix;
475	c->savestack_max = PL_savestack_max;	425	c->savestack_max = PL_savestack_max;
		426	#if PERL_VERSION < 9
476	c->retstack = PL_retstack;	427	c->retstack = PL_retstack;
477	c->retstack_ix = PL_retstack_ix;	428	c->retstack_ix = PL_retstack_ix;
478	c->retstack_max = PL_retstack_max;	429	c->retstack_max = PL_retstack_max;
		430	#endif
479	c->curpm = PL_curpm;	431	c->curpm = PL_curpm;
480	c->curcop = PL_curcop;	432	c->curcop = PL_curcop;
481	c->top_env = PL_top_env;	433	c->top_env = PL_top_env;
482	}	434	}
483		435
…		…
485	* allocate various perl stacks. This is an exact copy	437	* allocate various perl stacks. This is an exact copy
486	* of perl.c:init_stacks, except that it uses less memory	438	* of perl.c:init_stacks, except that it uses less memory
487	* on the (sometimes correct) assumption that coroutines do	439	* on the (sometimes correct) assumption that coroutines do
488	* not usually need a lot of stackspace.	440	* not usually need a lot of stackspace.
489	*/	441	*/
490	STATIC void	442	static void
491	coro_init_stacks (pTHX)	443	coro_init_stacks (pTHX)
492	{	444	{
493	LOCK;	445	LOCK;
494		446
495	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
…		…
520		472
521	New(54,PL_savestack,96,ANY);	473	New(54,PL_savestack,96,ANY);
522	PL_savestack_ix = 0;	474	PL_savestack_ix = 0;
523	PL_savestack_max = 96;	475	PL_savestack_max = 96;
524		476
		477	#if PERL_VERSION < 9
525	New(54,PL_retstack,8,OP*);	478	New(54,PL_retstack,8,OP*);
526	PL_retstack_ix = 0;	479	PL_retstack_ix = 0;
527	PL_retstack_max = 8;	480	PL_retstack_max = 8;
		481	#endif
528		482
529	UNLOCK;	483	UNLOCK;
530	}	484	}
531		485
532	/*	486	/*
533	* destroy the stacks, the callchain etc...	487	* destroy the stacks, the callchain etc...
534	*/	488	*/
535	STATIC void	489	static void
536	destroy_stacks(pTHX)	490	destroy_stacks(pTHX)
537	{	491	{
538	if (!IN_DESTRUCT)	492	if (!IN_DESTRUCT)
539	{	493	{
540	/* is this ugly, I ask? */	494	/* is this ugly, I ask? */
…		…
572		526
573	Safefree (PL_tmps_stack);	527	Safefree (PL_tmps_stack);
574	Safefree (PL_markstack);	528	Safefree (PL_markstack);
575	Safefree (PL_scopestack);	529	Safefree (PL_scopestack);
576	Safefree (PL_savestack);	530	Safefree (PL_savestack);
		531	#if PERL_VERSION < 9
577	Safefree (PL_retstack);	532	Safefree (PL_retstack);
578	}
579
580	static void
581	allocate_stack (Coro__State ctx, int alloc)
582	{
583	coro_stack *stack;
584
585	New (0, stack, 1, coro_stack);
586
587	stack->refcnt = 1;
588	stack->usecnt = 1;
589	stack->gencnt = ctx->gencnt = 0;
590
591	if (alloc)
592	{
593	#if HAVE_MMAP
594	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
595	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
596	if (stack->sptr == (void *)-1)
597	#endif	533	#endif
598	{
599	/FIXME//D//* reasonable stack size! */
600	stack->ssize = - (STACKSIZE * sizeof (long));
601	New (0, stack->sptr, STACKSIZE, long);
602	}
603	}
604	else
605	stack->sptr = 0;
606
607	ctx->stack = stack;
608	}	534	}
609		535
610	static void	536	static void
611	deallocate_stack (Coro__State ctx)	537	setup_coro (struct coro *coro)
612	{
613	coro_stack *stack = ctx->stack;
614
615	ctx->stack = 0;
616
617	if (stack)
618	{
619	if (!--stack->refcnt)
620	{
621	#ifdef HAVE_MMAP
622	if (stack->ssize > 0 && stack->sptr)
623	munmap (stack->sptr, stack->ssize);
624	else
625	#endif
626	Safefree (stack->sptr);
627
628	Safefree (stack);
629	}
630	else if (ctx->gencnt == stack->gencnt)
631	--stack->usecnt;
632	}
633	}
634
635	static void
636	setup_coro (void *arg)
637	{	538	{
638	/*	539	/*
639	* emulate part of the perl startup here.	540	* emulate part of the perl startup here.
640	*/	541	*/
641	dTHX;	542	dTHX;
642	dSP;	543	dSP;
643	Coro__State ctx = (Coro__State)arg;	544	UNOP myop;
644	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);	545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
645		546
646	coro_init_stacks (aTHX);	547	coro_init_stacks (aTHX);
647	/PL_curcop = 0;/	548	/PL_curcop = 0;/
648	/PL_in_eval = PL_in_eval;/ /* inherit */	549	/PL_in_eval = PL_in_eval;/ /* inherit */
649	SvREFCNT_dec (GvAV (PL_defgv));	550	SvREFCNT_dec (GvAV (PL_defgv));
650	GvAV (PL_defgv) = ctx->args; ctx->args = 0;	551	GvAV (PL_defgv) = coro->args; coro->args = 0;
651		552
652	SPAGAIN;	553	SPAGAIN;
653		554
654	if (ctx->stack)	555	Zero (&myop, 1, UNOP);
655	{	556	myop.op_next = Nullop;
656	ctx->cursp = 0;	557	myop.op_flags = OPf_WANT_VOID;
657		558
		559	PL_op = (OP *)&myop;
		560
658	PUSHMARK(SP);	561	PUSHMARK(SP);
		562	XPUSHs (sub_init);
659	PUTBACK;	563	PUTBACK;
660	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);	564	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
		565	SPAGAIN;
661		566
662	if (SvTRUE (ERRSV))	567	ENTER; /* necessary e.g. for dounwind */
663	croak (NULL);	568	}
664	else	569
665	croak ("FATAL: CCTXT coroutine returned!");	570	static void
		571	transfer_tail ()
		572	{
		573	if (coro_mortal)
		574	{
		575	SvREFCNT_dec (coro_mortal);
		576	coro_mortal = 0;
666	}	577	}
667	else
668	{
669	UNOP myop;
670		578
671	PL_op = (OP *)&myop;	579	UNLOCK;
672
673	Zero(&myop, 1, UNOP);
674	myop.op_next = Nullop;
675	myop.op_flags = OPf_WANT_VOID;
676
677	PUSHMARK(SP);
678	XPUSHs (sub_init);
679	/*
680	* the next line is slightly wrong, as PL_op->op_next
681	* is actually being executed so we skip the first op.
682	* that doesn't matter, though, since it is only
683	* pp_nextstate and we never return...
684	* ah yes, and I don't care anyways ;)
685	*/
686	PUTBACK;
687	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
688	SPAGAIN;
689
690	ENTER; /* necessary e.g. for dounwind */
691	}
692	}	580	}
693		581
694	static void	582	static void
695	continue_coro (void *arg)	583	coro_run (void *arg)
696	{	584	{
697	/*	585	/*
698	* this is a _very_ stripped down perl interpreter ;)	586	* this is a _very_ stripped down perl interpreter ;)
699	*/	587	*/
700	dTHX;	588	dTHX;
701	Coro__State ctx = (Coro__State)arg;
702	JMPENV coro_start_env;
703		589
		590	transfer_tail ();
		591
704	PL_top_env = &ctx->start_env;	592	PL_top_env = &PL_start_env;
705
706	ctx->cursp = 0;
707	PL_op = PL_op->op_next;	593	PL_restartop = PL_op->op_next;
708	CALLRUNOPS(aTHX);	594	/* somebody will hit me for both perl_run and PL_restart_top */
		595	perl_run (aTHX_ PERL_GET_CONTEXT);
709		596
710	abort ();	597	abort ();
711	}	598	}
712		599
713	STATIC void	600	static coro_stack *
		601	stack_new ()
		602	{
		603	coro_stack *stack;
		604
		605	New (0, stack, 1, coro_stack);
		606
		607	#if HAVE_MMAP
		608
		609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
		610	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
		611
		612	if (stack->sptr == (void *)-1)
		613	{
		614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");
		615	_exit (EXIT_FAILURE);
		616	}
		617
		618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		619
		620	#else
		621
		622	stack->ssize = STACKSIZE * (long)sizeof (long);
		623	New (0, stack->sptr, STACKSIZE, long);
		624
		625	if (!stack->sptr)
		626	{
		627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");
		628	_exit (EXIT_FAILURE);
		629	}
		630
		631	#endif
		632
		633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);
		634
		635	return stack;
		636	}
		637
		638	static void
		639	stack_free (coro_stack *stack)
		640	{
		641	if (!stack \|\| stack == main_stack)
		642	return;
		643
		644	#if HAVE_MMAP
		645	munmap (stack->sptr, stack->ssize);
		646	#else
		647	Safefree (stack->sptr);
		648	#endif
		649
		650	Safefree (stack);
		651	}
		652
		653	static coro_stack *stack_first;
		654
		655	static void
		656	stack_get (struct coro *coro)
		657	{
		658	if (stack_first)
		659	{
		660	coro->stack = stack_first;
		661	stack_first = stack_first->next;
		662	}
		663	else
		664	coro->stack = stack_new ();
		665	}
		666
		667	static void
		668	stack_put (coro_stack *stack)
		669	{
		670	stack->next = stack_first;
		671	stack_first = stack;
		672	}
		673
		674	/* never call directly, always through the coro_state_transfer global variable */
		675	static void
714	transfer (pTHX_ struct coro prev, struct coro next, int flags)	676	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
715	{	677	{
716	dSTACKLEVEL;	678	dSTACKLEVEL;
717		679
		680	/* sometimes transfer is only called to set idle_sp */
		681	if (!prev->stack->idle_sp)
		682	prev->stack->idle_sp = stacklevel;
		683
		684	LOCK;
		685
718	if (prev != next)	686	if (prev != next)
719	{	687	{
720	if (next->mainstack)	688	coro_stack *prev_stack = prev->stack;
		689
		690	/* possibly "free" the stack */
		691	if (prev_stack->idle_sp == stacklevel)
721	{	692	{
722	LOCK;	693	stack_put (prev_stack);
		694	prev->stack = 0;
		695	}
		696
		697	if (!next->mainstack)
		698	{
		699	/* first get rid of the old state */
		700	SAVE (prev, -1);
		701	/* setup coroutine call */
		702	setup_coro (next);
		703	next->stack = 0;
		704	}
		705	else
		706	{
723	SAVE (prev, flags);	707	SAVE (prev, flags);
724	LOAD (next);	708	LOAD (next);
725	UNLOCK;
726
727	/* mark this state as in-use */
728	next->mainstack = 0;
729	next->tmps_ix = -2;
730
731	/* stacklevel changed? if yes, grab the stack for us! */
732	if (flags & TRANSFER_SAVE_CCTXT)
733	{
734	if (!prev->stack)
735	allocate_stack (prev, 0);
736	else if (prev->cursp != stacklevel
737	&& prev->stack->usecnt > 1)
738	{
739	prev->gencnt = ++prev->stack->gencnt;
740	prev->stack->usecnt = 1;
741	}
742
743	/* has our stack been invalidated? */
744	if (next->stack && next->stack->gencnt != next->gencnt)
745	{
746	deallocate_stack (next);
747	allocate_stack (next, 1);
748	coro_create (&(next->stack->cctx),
749	continue_coro, (void *)next,
750	next->stack->sptr, labs (next->stack->ssize));
751	}
752
753	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
754	prev->cursp = stacklevel;
755	/* don't add any code here */
756	}
757	else
758	next->cursp = stacklevel;
759	}	709	}
760	else if (next->tmps_ix == -2)
761	croak ("tried to transfer to running coroutine");
762	else
763	{
764	LOCK;
765	SAVE (prev, -1); /* first get rid of the old state */
766	UNLOCK;
767		710
768	if (flags & TRANSFER_SAVE_CCTXT)	711	if (!next->stack)
769	{	712	stack_get (next);
770	if (!prev->stack)
771	allocate_stack (prev, 0);
772		713
773	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	714	if (prev_stack != next->stack)
774	{
775	PL_top_env = &next->start_env;
776
777	setup_coro (next);
778	next->cursp = stacklevel;
779
780	prev->stack->refcnt++;
781	prev->stack->usecnt++;
782	next->stack = prev->stack;
783	next->gencnt = prev->gencnt;
784	}
785	else
786	{
787	assert (!next->stack);
788	allocate_stack (next, 1);
789	coro_create (&(next->stack->cctx),
790	setup_coro, (void *)next,
791	next->stack->sptr, labs (next->stack->ssize));
792	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	715	coro_transfer (&prev_stack->cctx, &next->stack->cctx);
793	prev->cursp = stacklevel;
794	/* don't add any code here */
795	}
796	}
797	else
798	{
799	setup_coro (next);
800	next->cursp = stacklevel;
801	}
802	}
803	}	716	}
804		717
805	LOCK;	718	transfer_tail ();
806	if (coro_mortal)	719	}
		720
		721	/* use this function pointer to call the above function */
		722	/* this is done to increase chances of the compiler not inlining the call */
		723	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
		724
		725	static void
		726	coro_state_destroy (struct coro *coro)
		727	{
		728	if (coro->refcnt--)
		729	return;
		730
		731	if (coro->mainstack && coro->mainstack != main_mainstack)
807	{	732	{
808	SvREFCNT_dec (coro_mortal);	733	struct coro temp;
		734
		735	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
		736	LOAD (aTHX_ coro);
		737
		738	destroy_stacks (aTHX);
		739
		740	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		741
809	coro_mortal = 0;	742	coro->mainstack = 0;
810	}	743	}
811	UNLOCK;
812	}
813		744
814	#define SV_CORO(sv,func) \	745	stack_free (coro->stack);
815	do { \	746	SvREFCNT_dec (coro->args);
816	if (SvROK (sv)) \	747	Safefree (coro);
817	sv = SvRV (sv); \	748	}
818	\
819	if (SvTYPE (sv) == SVt_PVHV) \
820	{ \
821	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
822	\
823	if (!he) \
824	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
825	\
826	(sv) = SvRV (HeVAL(he)); \
827	} \
828	\
829	/* must also be changed inside Coro::Cont::yield */ \
830	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
831	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
832	\
833	} while(0)
834		749
835	#define SvSTATE(sv) (struct coro *)SvIV (sv)
836
837	static void	750	static int
		751	coro_state_clear (SV sv, MAGIC mg)
		752	{
		753	struct coro coro = (struct coro )mg->mg_ptr;
		754	mg->mg_ptr = 0;
		755
		756	coro_state_destroy (coro);
		757
		758	return 0;
		759	}
		760
		761	static int
		762	coro_state_dup (MAGIC mg, CLONE_PARAMS params)
		763	{
		764	struct coro coro = (struct coro )mg->mg_ptr;
		765
		766	++coro->refcnt;
		767
		768	return 0;
		769	}
		770
		771	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		772
		773	static struct coro *
		774	SvSTATE (SV *coro)
		775	{
		776	HV *stash;
		777	MAGIC *mg;
		778
		779	if (SvROK (coro))
		780	coro = SvRV (coro);
		781
		782	stash = SvSTASH (coro);
		783	if (stash != coro_stash && stash != coro_state_stash)
		784	{
		785	/* very slow, but rare, check */
		786	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		787	croak ("Coro::State object required");
		788	}
		789
		790	mg = SvMAGIC (coro);
		791	assert (mg->mg_type == PERL_MAGIC_ext);
		792	return (struct coro *)mg->mg_ptr;
		793	}
		794
		795	static void
838	api_transfer(pTHX_ SV prev, SV next, int flags)	796	api_transfer (pTHX_ SV prev, SV next, int flags)
839	{	797	{
840	SV_CORO (prev, "Coro::transfer");
841	SV_CORO (next, "Coro::transfer");
842
843	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	798	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
844	}	799	}
845		800
846	/ Coro ******************************************************************/	801	/ Coro ******************************************************************/
847		802
848	#define PRIO_MAX 3	803	#define PRIO_MAX 3
…		…
852	#define PRIO_IDLE -3	807	#define PRIO_IDLE -3
853	#define PRIO_MIN -4	808	#define PRIO_MIN -4
854		809
855	/* for Coro.pm */	810	/* for Coro.pm */
856	static GV coro_current, coro_idle;	811	static GV coro_current, coro_idle;
857	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	812	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
858	static int coro_nready;	813	static int coro_nready;
859		814
860	static void	815	static void
861	coro_enq (pTHX_ SV *sv)	816	coro_enq (pTHX_ SV *sv)
862	{	817	{
		818	int prio;
		819
863	if (SvTYPE (sv) == SVt_PVHV)	820	if (SvTYPE (sv) != SVt_PVHV)
864	{
865	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
866	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
867
868	prio = prio > PRIO_MAX ? PRIO_MAX
869	: prio < PRIO_MIN ? PRIO_MIN
870	: prio;
871
872	av_push (coro_ready [prio - PRIO_MIN], sv);
873	coro_nready++;
874
875	return;
876	}
877
878	croak ("Coro::ready tried to enqueue something that is not a coroutine");	821	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		822
		823	prio = SvSTATE (sv)->prio;
		824
		825	av_push (coro_ready [prio - PRIO_MIN], sv);
		826	coro_nready++;
879	}	827	}
880		828
881	static SV *	829	static SV *
882	coro_deq (pTHX_ int min_prio)	830	coro_deq (pTHX_ int min_prio)
883	{	831	{
…		…
886	min_prio -= PRIO_MIN;	834	min_prio -= PRIO_MIN;
887	if (min_prio < 0)	835	if (min_prio < 0)
888	min_prio = 0;	836	min_prio = 0;
889		837
890	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	838	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
891	if (av_len (coro_ready[prio]) >= 0)	839	if (AvFILLp (coro_ready [prio]) >= 0)
892	{	840	{
893	coro_nready--;	841	coro_nready--;
894	return av_shift (coro_ready[prio]);	842	return av_shift (coro_ready [prio]);
895	}	843	}
896		844
897	return 0;	845	return 0;
898	}	846	}
899		847
…		…
914	api_schedule (void)	862	api_schedule (void)
915	{	863	{
916	dTHX;	864	dTHX;
917		865
918	SV prev, next;	866	SV prev, next;
		867	SV *current = GvSV (coro_current);
919		868
		869	for (;;)
		870	{
920	LOCK;	871	LOCK;
921		872
922	prev = SvRV (GvSV (coro_current));
923	next = coro_deq (aTHX_ PRIO_MIN);	873	next = coro_deq (aTHX_ PRIO_MIN);
924		874
925	if (!next)	875	if (next)
926	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	876	break;
		877
		878	UNLOCK;
		879
		880	{
		881	dSP;
		882
		883	ENTER;
		884	SAVETMPS;
		885
		886	PUSHMARK (SP);
		887	PUTBACK;
		888	call_sv (GvSV (coro_idle), G_DISCARD);
		889
		890	FREETMPS;
		891	LEAVE;
		892	}
		893	}
		894
		895	prev = SvRV (current);
		896	SvRV (current) = next;
927		897
928	/* free this only after the transfer */	898	/* free this only after the transfer */
929	coro_mortal = prev;	899	coro_mortal = prev;
930	SV_CORO (prev, "Coro::schedule");
931
932	SvRV (GvSV (coro_current)) = next;
933
934	SV_CORO (next, "Coro::schedule");
935		900
936	UNLOCK;	901	UNLOCK;
937		902
938	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	903	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);
939	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
940	}	904	}
		905
		906	static int coro_cede_self;
941		907
942	static void	908	static void
943	api_cede (void)	909	api_cede (void)
944	{	910	{
945	dTHX;	911	dTHX;
		912	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));
946		913
947	LOCK;	914	LOCK;
948	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));	915
		916	if (coro_cede_self)
		917	{
		918	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
		919	av_unshift (runqueue, 1);
		920	av_store (runqueue, 0, current);
		921	coro_nready++;
		922	coro_cede_self = 0;
		923	}
		924	else
		925	coro_enq (aTHX_ current);
		926
949	UNLOCK;	927	UNLOCK;
950		928
951	api_schedule ();	929	api_schedule ();
952	}	930	}
953		931
954	MODULE = Coro::State PACKAGE = Coro::State	932	MODULE = Coro::State PACKAGE = Coro::State
955		933
956	PROTOTYPES: ENABLE	934	PROTOTYPES: DISABLE
957		935
958	BOOT:	936	BOOT:
959	{ /* {} necessary for stoopid perl-5.6.x */	937	{
960	#ifdef USE_ITHREADS	938	#ifdef USE_ITHREADS
961	MUTEX_INIT (&coro_mutex);	939	MUTEX_INIT (&coro_mutex);
962	#endif	940	#endif
		941	BOOT_PAGESIZE;
963		942
964	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
965	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
966	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	943	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
967		944
968	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	945	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
969	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	946	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
970	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	947	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
971	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
972		948
973	main_mainstack = PL_mainstack;	949	main_mainstack = PL_mainstack;
974		950
975	coroapi.ver = CORO_API_VERSION;	951	coroapi.ver = CORO_API_VERSION;
976	coroapi.transfer = api_transfer;	952	coroapi.transfer = api_transfer;
977	}
978		953
979	Coro::State	954	Newz (0, main_stack, 1, coro_stack);
980	_newprocess(args)	955	main_stack->idle_sp = (void *)-1;
981	SV * args	956
982	PROTOTYPE: $	957	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
		958	}
		959
		960	SV *
		961	new (char *klass, ...)
983	CODE:	962	CODE:
984	Coro__State coro;	963	{
		964	struct coro *coro;
		965	HV *hv;
		966	int i;
985		967
986	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
987	croak ("Coro::State::_newprocess expects an arrayref");
988
989	Newz (0, coro, 1, struct coro);	968	Newz (0, coro, 1, struct coro);
		969	coro->args = newAV ();
990		970
991	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	971	hv = newHV ();
		972	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
		973	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		974
		975	av_push (coro->args, newSVsv (RETVAL));
		976	for (i = 1; i < items; i++)
		977	av_push (coro->args, newSVsv (ST (i)));
		978
		979	coro->stack = main_stack;
992	/coro->mainstack = 0; //actual work is done inside transfer /	980	/coro->mainstack = 0; //actual work is done inside transfer /
993	/coro->stack = 0;/	981	/coro->stack = 0;/
994		982	}
995	/* same as JMPENV_BOOTSTRAP */
996	/* we might be able to recycle start_env, but safe is safe */
997	/Zero(&coro->start_env, 1, JMPENV);/
998	coro->start_env.je_ret = -1;
999	coro->start_env.je_mustcatch = TRUE;
1000
1001	RETVAL = coro;
1002	OUTPUT:	983	OUTPUT:
1003	RETVAL	984	RETVAL
1004		985
1005	void	986	void
1006	transfer(prev, next, flags)	987	transfer (prev, next, flags)
1007	SV *prev	988	SV *prev
1008	SV *next	989	SV *next
1009	int flags	990	int flags
1010	PROTOTYPE: @
1011	CODE:	991	CODE:
1012	PUTBACK;	992	PUTBACK;
1013	SV_CORO (next, "Coro::transfer");
1014	SV_CORO (prev, "Coro::transfer");
1015	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	993	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1016	SPAGAIN;	994	SPAGAIN;
1017		995
		996	int
		997	prio (Coro::State coro, int newprio = 0)
		998	ALIAS:
		999	nice = 1
		1000	CODE:
		1001	{
		1002	RETVAL = coro->prio;
		1003
		1004	if (items > 1)
		1005	{
		1006	if (ix)
		1007	newprio += coro->prio;
		1008
		1009	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1010	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1011
		1012	coro->prio = newprio;
		1013	}
		1014	}
		1015
1018	void	1016	void
1019	DESTROY(coro)	1017	_clear_idle_sp (Coro::State self)
1020	Coro::State coro	1018	CODE:
1021	CODE:	1019	self->stack->idle_sp = 0;
1022
1023	if (coro->mainstack && coro->mainstack != main_mainstack)
1024	{
1025	struct coro temp;
1026
1027	PUTBACK;
1028	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
1029	LOAD (aTHX_ coro);
1030	SPAGAIN;
1031
1032	destroy_stacks (aTHX);
1033
1034	LOAD ((&temp)); /* this will get rid of defsv etc.. */
1035	SPAGAIN;
1036
1037	coro->mainstack = 0;
1038	}
1039
1040	deallocate_stack (coro);
1041	SvREFCNT_dec (coro->args);
1042	Safefree (coro);
1043		1020
1044	void	1021	void
		1022	_clone_state_from (SV dst, SV src)
		1023	CODE:
		1024	{
		1025	struct coro *coro_src = SvSTATE (src);
		1026
		1027	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
		1028
		1029	++coro_src->refcnt;
		1030	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
		1031	}
		1032
		1033	void
1045	_exit(code)	1034	_exit (code)
1046	int code	1035	int code
1047	PROTOTYPE: $	1036	PROTOTYPE: $
1048	CODE:	1037	CODE:
1049	_exit (code);	1038	_exit (code);
1050		1039
1051	MODULE = Coro::State PACKAGE = Coro::Cont	1040	MODULE = Coro::State PACKAGE = Coro::Cont
1052		1041
1053	# this is slightly dirty (should expose a c-level api)
1054
1055	void	1042	void
1056	yield(...)	1043	yield (...)
1057	PROTOTYPE: @	1044	PROTOTYPE: @
1058	CODE:	1045	CODE:
		1046	{
1059	SV *yieldstack;	1047	SV *yieldstack;
1060	SV *sv;	1048	SV *sv;
1061	AV *defav = GvAV (PL_defgv);	1049	AV *defav = GvAV (PL_defgv);
1062	struct coro prev, next;	1050	struct coro prev, next;
1063		1051
…		…
1072	av_fill (defav, items - 1);	1060	av_fill (defav, items - 1);
1073	while (items--)	1061	while (items--)
1074	av_store (defav, items, SvREFCNT_inc (ST(items)));	1062	av_store (defav, items, SvREFCNT_inc (ST(items)));
1075		1063
1076	sv = av_pop ((AV *)SvRV (yieldstack));	1064	sv = av_pop ((AV *)SvRV (yieldstack));
1077	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1065	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1078	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1066	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1079	SvREFCNT_dec (sv);	1067	SvREFCNT_dec (sv);
1080		1068
1081	transfer (aTHX_ prev, next, 0);	1069	coro_state_transfer (aTHX_ prev, next, 0);
		1070	}
1082		1071
1083	MODULE = Coro::State PACKAGE = Coro	1072	MODULE = Coro::State PACKAGE = Coro
1084		1073
1085	# this is slightly dirty (should expose a c-level api)
1086
1087	BOOT:	1074	BOOT:
1088	{	1075	{
1089	int i;	1076	int i;
		1077
1090	HV *stash = gv_stashpv ("Coro", TRUE);	1078	coro_stash = gv_stashpv ("Coro", TRUE);
1091		1079
1092	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));	1080	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1093	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1081	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1094	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1082	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1095	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));	1083	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1096	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1084	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1097	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));	1085	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1098		1086
1099	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1087	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1100	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1088	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1101		1089
1102	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1090	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
…		…
1110	coroapi.ready = api_ready;	1098	coroapi.ready = api_ready;
1111	coroapi.nready = &coro_nready;	1099	coroapi.nready = &coro_nready;
1112	coroapi.current = coro_current;	1100	coroapi.current = coro_current;
1113		1101
1114	GCoroAPI = &coroapi;	1102	GCoroAPI = &coroapi;
1115	sv_setiv(sv, (IV)&coroapi);	1103	sv_setiv (sv, (IV)&coroapi);
1116	SvREADONLY_on(sv);	1104	SvREADONLY_on (sv);
1117	}	1105	}
1118	}	1106	}
1119		1107
1120	#if !PERL_MICRO
1121
1122	void	1108	void
1123	ready(self)	1109	ready (SV *self)
1124	SV * self
1125	PROTOTYPE: $	1110	PROTOTYPE: $
1126	CODE:	1111	CODE:
1127	api_ready (self);	1112	api_ready (self);
1128		1113
1129	#endif
1130
1131	int	1114	int
1132	nready(...)	1115	nready (...)
1133	PROTOTYPE:	1116	PROTOTYPE:
1134	CODE:	1117	CODE:
1135	RETVAL = coro_nready;	1118	RETVAL = coro_nready;
1136	OUTPUT:	1119	OUTPUT:
1137	RETVAL	1120	RETVAL
1138		1121
1139	void	1122	void
1140	schedule(...)	1123	schedule (...)
1141	PROTOTYPE:	1124	PROTOTYPE:
1142	CODE:	1125	CODE:
1143	api_schedule ();	1126	api_schedule ();
1144		1127
1145	void	1128	void
		1129	_set_cede_self ()
		1130	CODE:
		1131	coro_cede_self = 1;
		1132
		1133	void
1146	cede(...)	1134	cede (...)
1147	PROTOTYPE:	1135	PROTOTYPE:
1148	CODE:	1136	CODE:
1149	api_cede ();	1137	api_cede ();
1150		1138
		1139	MODULE = Coro::State PACKAGE = Coro::AIO
		1140
		1141	SV *
		1142	_get_state ()
		1143	CODE:
		1144	{
		1145	struct {
		1146	int errorno;
		1147	int laststype;
		1148	int laststatval;
		1149	Stat_t statcache;
		1150	} data;
		1151
		1152	data.errorno = errno;
		1153	data.laststype = PL_laststype;
		1154	data.laststatval = PL_laststatval;
		1155	data.statcache = PL_statcache;
		1156
		1157	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1158	}
		1159	OUTPUT:
		1160	RETVAL
		1161
		1162	void
		1163	_set_state (char *data_)
		1164	PROTOTYPE: $
		1165	CODE:
		1166	{
		1167	struct {
		1168	int errorno;
		1169	int laststype;
		1170	int laststatval;
		1171	Stat_t statcache;
		1172	} data = (void )data_;
		1173
		1174	errno = data->errorno;
		1175	PL_laststype = data->laststype;
		1176	PL_laststatval = data->laststatval;
		1177	PL_statcache = data->statcache;
		1178	}

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.68 by root, Mon Dec 12 20:28:30 2005 UTC vs. Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.68 by root, Mon Dec 12 20:28:30 2005 UTC vs.
Revision 1.89 by root, Sat Nov 25 00:40:26 2006 UTC