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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.61 by root, Tue Aug 10 01:56:30 2004 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
1	#include "EXTERN.h"	3	#include "EXTERN.h"
2	#include "perl.h"	4	#include "perl.h"
3	#include "XSUB.h"	5	#include "XSUB.h"
4		6
		7	#include "patchlevel.h"
		8
		9	#if PATCHLEVEL < 6
		10	# ifndef PL_ppaddr
		11	# define PL_ppaddr ppaddr
		12	# endif
		13	# ifndef call_sv
		14	# define call_sv perl_call_sv
		15	# endif
		16	# ifndef get_sv
		17	# define get_sv perl_get_sv
		18	# endif
		19	# ifndef get_cv
		20	# define get_cv perl_get_cv
		21	# endif
		22	# ifndef IS_PADGV
		23	# define IS_PADGV(v) 0
		24	# endif
		25	# ifndef IS_PADCONST
		26	# define IS_PADCONST(v) 0
		27	# endif
		28	#endif
		29
5	#include "libcoro/coro.c"	30	#include "libcoro/coro.c"
		31
		32	#include <signal.h>
6		33
7	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
8	# include <unistd.h>	35	# include <unistd.h>
9	# include <sys/mman.h>	36	# include <sys/mman.h>
10	# ifndef MAP_ANON
11	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
12	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
13	# else	40	# else
14	# undef HAVE_MMAP	41	# undef HAVE_MMAP
15	# endif	42	# endif
16	# endif	43	# endif
17	#endif	44	#endif
18		45
19	#define MAY_FLUSH /* increases codesize */
20
21	/* perl-related */
22	#define TRANSFER_SAVE_DEFAV 0x00000001
23	#define TRANSFER_SAVE_DEFSV 0x00000002
24	#define TRANSFER_SAVE_ERRSV 0x00000004
25	/* c-related */
26	#define TRANSFER_SAVE_CCTXT 0x00000008
27	#ifdef CORO_LAZY_STACK
28	# define TRANSFER_LAZY_STACK 0x00000010
29	#else
30	# define TRANSFER_LAZY_STACK 0x00000000
31	#endif
32
33	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
34	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
35
36	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
37	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
38		48
39	/* The next macro should delcare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
40	* to the current C stack pointer. It's property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
41	* and should be unique. */	51	* and should be unique. */
42	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
43		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
44	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
		57
		58	#include "CoroAPI.h"
		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK 0
		66	# define UNLOCK 0
		67	#endif
		68
		69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
45		75
46	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
47	typedef struct {	77	typedef struct {
48	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
49	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
53		83
54	void *sptr;	84	void *sptr;
55	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
56	} coro_stack;	86	} coro_stack;
57		87
58	static coro_stack main_stack = { 1, 0, 0 };
59
60	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
61	/* the optional C context */	92	/* the optional C context */
62	coro_stack *stack;	93	coro_stack *stack;
63	void *cursp;	94	void *cursp;
64	int gencnt;	95	int gencnt;
65		96
…		…
68	SV *defsv;	99	SV *defsv;
69	SV *errsv;	100	SV *errsv;
70		101
71	/* saved global state not related to stacks */	102	/* saved global state not related to stacks */
72	U8 dowarn;	103	U8 dowarn;
		104	I32 in_eval;
73		105
74	/* the stacks and related info (callchain etc..) */	106	/* the stacks and related info (callchain etc..) */
75	PERL_SI *curstackinfo;	107	PERL_SI *curstackinfo;
76	AV *curstack;	108	AV *curstack;
77	AV *mainstack;	109	AV *mainstack;
78	SV **stack_sp;	110	SV **stack_sp;
79	OP *op;	111	OP *op;
80	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
81	SV **stack_base;	114	SV **stack_base;
82	SV **stack_max;	115	SV **stack_max;
83	SV **tmps_stack;	116	SV **tmps_stack;
84	I32 tmps_floor;	117	I32 tmps_floor;
85	I32 tmps_ix;	118	I32 tmps_ix;
…		…
95	I32 savestack_max;	128	I32 savestack_max;
96	OP **retstack;	129	OP **retstack;
97	I32 retstack_ix;	130	I32 retstack_ix;
98	I32 retstack_max;	131	I32 retstack_max;
99	COP *curcop;	132	COP *curcop;
100	JMPENV start_env;
101	JMPENV *top_env;	133	JMPENV *top_env;
102		134
103	/* data associated with this coroutine (initial args) */	135	/* data associated with this coroutine (initial args) */
104	AV *args;	136	AV *args;
105	};	137	};
106		138
107	typedef struct coro *Coro__State;	139	typedef struct coro *Coro__State;
108	typedef struct coro *Coro__State_or_hashref;	140	typedef struct coro *Coro__State_or_hashref;
109		141
110	static AV main_mainstack; / used to differentiate between $main and others */
111	static HV *coro_state_stash;
112	static SV *ucoro_state_sv;
113	static U32 ucoro_state_hash;
114	static HV *padlist_cache;
115
116	/* mostly copied from op.c:cv_clone2 */	142	/* mostly copied from op.c:cv_clone2 */
117	STATIC AV *	143	STATIC AV *
118	clone_padlist (AV *protopadlist)	144	clone_padlist (pTHX_ AV *protopadlist)
119	{	145	{
120	AV *av;	146	AV *av;
121	I32 ix;	147	I32 ix;
122	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	148	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
123	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	149	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
147	AvFLAGS (av) = AVf_REIFY;	173	AvFLAGS (av) = AVf_REIFY;
148		174
149	for (ix = fpad; ix > 0; ix--)	175	for (ix = fpad; ix > 0; ix--)
150	{	176	{
151	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	177	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		178
152	if (namesv && namesv != &PL_sv_undef)	179	if (namesv && namesv != &PL_sv_undef)
153	{	180	{
154	char name = SvPVX (namesv); / XXX */	181	char name = SvPVX (namesv); / XXX */
		182
155	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	183	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
156	{ /* lexical from outside? */	184	{ /* lexical from outside? */
157	npad[ix] = SvREFCNT_inc (ppad[ix]);	185	npad[ix] = SvREFCNT_inc (ppad[ix]);
158	}	186	}
159	else	187	else
…		…
165	sv = (SV *) newAV ();	193	sv = (SV *) newAV ();
166	else if (*name == '%')	194	else if (*name == '%')
167	sv = (SV *) newHV ();	195	sv = (SV *) newHV ();
168	else	196	else
169	sv = NEWSV (0, 0);	197	sv = NEWSV (0, 0);
		198
		199	#ifdef SvPADBUSY
170	if (!SvPADBUSY (sv))	200	if (!SvPADBUSY (sv))
		201	#endif
171	SvPADMY_on (sv);	202	SvPADMY_on (sv);
		203
172	npad[ix] = sv;	204	npad[ix] = sv;
173	}	205	}
174	}	206	}
175	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	207	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
176	{	208	{
…		…
205	#endif	237	#endif
206		238
207	return newpadlist;	239	return newpadlist;
208	}	240	}
209		241
210	#ifdef MAY_FLUSH	242	STATIC void
211	STATIC AV *
212	free_padlist (AV *padlist)	243	free_padlist (pTHX_ AV *padlist)
213	{	244	{
214	/* may be during global destruction */	245	/* may be during global destruction */
215	if (SvREFCNT(padlist))	246	if (SvREFCNT (padlist))
216	{	247	{
217	I32 i = AvFILLp(padlist);	248	I32 i = AvFILLp (padlist);
218	while (i >= 0)	249	while (i >= 0)
219	{	250	{
220	SV **svp = av_fetch(padlist, i--, FALSE);	251	SV **svp = av_fetch (padlist, i--, FALSE);
221	SV sv = svp ? svp : Nullsv;
222	if (sv)	252	if (svp)
		253	{
		254	SV *sv;
		255	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
223	SvREFCNT_dec(sv);	256	SvREFCNT_dec (sv);
		257
		258	SvREFCNT_dec (*svp);
		259	}
224	}	260	}
225		261
226	SvREFCNT_dec((SV*)padlist);	262	SvREFCNT_dec ((SV*)padlist);
227	}	263	}
228	}	264	}
229	#endif	265
		266	STATIC int
		267	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		268	{
		269	AV *padlist;
		270	AV av = (AV )mg->mg_obj;
		271
		272	/* casting is fun. */
		273	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		274	free_padlist (aTHX_ padlist);
		275
		276	SvREFCNT_dec (av);
		277	}
		278
		279	#define PERL_MAGIC_coro PERL_MAGIC_ext
		280
		281	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
230		282
231	/* the next two functions merely cache the padlists */	283	/* the next two functions merely cache the padlists */
232	STATIC void	284	STATIC void
233	get_padlist (CV *cv)	285	get_padlist (pTHX_ CV *cv)
234	{	286	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	287	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		288
237	if (he && AvFILLp ((AV )he) >= 0)	289	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
238	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	290	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
239	else	291	else
240	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	292	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
241	}	293	}
242		294
243	STATIC void	295	STATIC void
244	put_padlist (CV *cv)	296	put_padlist (pTHX_ CV *cv)
245	{	297	{
246	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	298	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
247		299
248	if (SvTYPE (*he) != SVt_PVAV)	300	if (!mg)
249	{	301	{
250	SvREFCNT_dec (*he);	302	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		303	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		304	mg->mg_virtual = &vtbl_coro;
251	he = (SV )newAV ();	305	mg->mg_obj = (SV *)newAV ();
252	}	306	}
253		307
254	av_push ((AV )he, (SV *)CvPADLIST (cv));	308	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
255	}	309	}
256
257	#ifdef MAY_FLUSH
258	STATIC void
259	flush_padlist_cache ()
260	{
261	HV *hv = padlist_cache;
262	padlist_cache = newHV ();
263
264	if (hv_iterinit (hv))
265	{
266	HE *he;
267	AV *padlist;
268
269	while (!!(he = hv_iternext (hv)))
270	{
271	AV av = (AV )HeVAL(he);
272
273	/* casting is fun. */
274	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
275	free_padlist (padlist);
276	}
277	}
278
279	SvREFCNT_dec (hv);
280	}
281	#endif
282		310
283	#define SB do {	311	#define SB do {
284	#define SE } while (0)	312	#define SE } while (0)
285		313
286	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	314	#define LOAD(state) load_state(aTHX_ (state));
287	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	315	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
288		316
289	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	317	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
290		318
291	static void	319	static void
292	load_state(pTHX_ Coro__State c)	320	load_state(pTHX_ Coro__State c)
293	{	321	{
294	PL_dowarn = c->dowarn;	322	PL_dowarn = c->dowarn;
		323	PL_in_eval = c->in_eval;
295		324
296	PL_curstackinfo = c->curstackinfo;	325	PL_curstackinfo = c->curstackinfo;
297	PL_curstack = c->curstack;	326	PL_curstack = c->curstack;
298	PL_mainstack = c->mainstack;	327	PL_mainstack = c->mainstack;
299	PL_stack_sp = c->stack_sp;	328	PL_stack_sp = c->stack_sp;
300	PL_op = c->op;	329	PL_op = c->op;
301	PL_curpad = c->curpad;	330	PL_curpad = c->curpad;
		331	PL_comppad = c->comppad;
302	PL_stack_base = c->stack_base;	332	PL_stack_base = c->stack_base;
303	PL_stack_max = c->stack_max;	333	PL_stack_max = c->stack_max;
304	PL_tmps_stack = c->tmps_stack;	334	PL_tmps_stack = c->tmps_stack;
305	PL_tmps_floor = c->tmps_floor;	335	PL_tmps_floor = c->tmps_floor;
306	PL_tmps_ix = c->tmps_ix;	336	PL_tmps_ix = c->tmps_ix;
…		…
316	PL_savestack_max = c->savestack_max;	346	PL_savestack_max = c->savestack_max;
317	PL_retstack = c->retstack;	347	PL_retstack = c->retstack;
318	PL_retstack_ix = c->retstack_ix;	348	PL_retstack_ix = c->retstack_ix;
319	PL_retstack_max = c->retstack_max;	349	PL_retstack_max = c->retstack_max;
320	PL_curcop = c->curcop;	350	PL_curcop = c->curcop;
321	PL_start_env = c->start_env;
322	PL_top_env = c->top_env;	351	PL_top_env = c->top_env;
323		352
324	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	353	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
325	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	354	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
326	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	355	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
334	{	363	{
335	AV padlist = (AV )POPs;	364	AV padlist = (AV )POPs;
336		365
337	if (padlist)	366	if (padlist)
338	{	367	{
339	put_padlist (cv); /* mark this padlist as available */	368	put_padlist (aTHX_ cv); /* mark this padlist as available */
340	CvPADLIST(cv) = padlist;	369	CvPADLIST(cv) = padlist;
341	#ifdef USE_THREADS
342	/CvOWNER(cv) = (struct perl_thread )POPs;*/
343	#endif
344	}	370	}
345		371
346	++CvDEPTH(cv);	372	++CvDEPTH(cv);
347	}	373	}
348		374
…		…
366		392
367	PUSHs (Nullsv);	393	PUSHs (Nullsv);
368	/* this loop was inspired by pp_caller */	394	/* this loop was inspired by pp_caller */
369	for (;;)	395	for (;;)
370	{	396	{
371	do	397	while (cxix >= 0)
372	{	398	{
373	PERL_CONTEXT *cx = &ccstk[cxix--];	399	PERL_CONTEXT *cx = &ccstk[cxix--];
374		400
375	if (CxTYPE(cx) == CXt_SUB)	401	if (CxTYPE(cx) == CXt_SUB)
376	{	402	{
377	CV *cv = cx->blk_sub.cv;	403	CV *cv = cx->blk_sub.cv;
378	if (CvDEPTH(cv))	404	if (CvDEPTH(cv))
379	{	405	{
380	#ifdef USE_THREADS
381	/XPUSHs ((SV )CvOWNER(cv));*/
382	/CvOWNER(cv) = 0;/
383	/error must unlock this cv etc.. etc.../
384	#endif
385	EXTEND (SP, CvDEPTH(cv)*2);	406	EXTEND (SP, CvDEPTH(cv)*2);
386		407
387	while (--CvDEPTH(cv))	408	while (--CvDEPTH(cv))
388	{	409	{
389	/* this tells the restore code to increment CvDEPTH */	410	/* this tells the restore code to increment CvDEPTH */
…		…
392	}	413	}
393		414
394	PUSHs ((SV *)CvPADLIST(cv));	415	PUSHs ((SV *)CvPADLIST(cv));
395	PUSHs ((SV *)cv);	416	PUSHs ((SV *)cv);
396		417
397	get_padlist (cv); /* this is a monster */	418	get_padlist (aTHX_ cv); /* this is a monster */
398	}	419	}
399	}	420	}
		421	#ifdef CXt_FORMAT
400	else if (CxTYPE(cx) == CXt_FORMAT)	422	else if (CxTYPE(cx) == CXt_FORMAT)
401	{	423	{
402	/* I never used formats, so how should I know how these are implemented? */	424	/* I never used formats, so how should I know how these are implemented? */
403	/* my bold guess is as a simple, plain sub... */	425	/* my bold guess is as a simple, plain sub... */
404	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	426	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
405	}	427	}
		428	#endif
406	}	429	}
407	while (cxix >= 0);
408		430
409	if (top_si->si_type == PERLSI_MAIN)	431	if (top_si->si_type == PERLSI_MAIN)
410	break;	432	break;
411		433
412	top_si = top_si->si_prev;	434	top_si = top_si->si_prev;
…		…
419		441
420	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	442	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
421	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	443	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	444	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
423		445
424	/* I have not the slightest idea of why av_reify is necessary */
425	/* but if it's missing the defav contents magically get replaced sometimes */
426	if (c->defav)
427	av_reify (c->defav);
428
429	c->dowarn = PL_dowarn;	446	c->dowarn = PL_dowarn;
		447	c->in_eval = PL_in_eval;
430		448
431	c->curstackinfo = PL_curstackinfo;	449	c->curstackinfo = PL_curstackinfo;
432	c->curstack = PL_curstack;	450	c->curstack = PL_curstack;
433	c->mainstack = PL_mainstack;	451	c->mainstack = PL_mainstack;
434	c->stack_sp = PL_stack_sp;	452	c->stack_sp = PL_stack_sp;
435	c->op = PL_op;	453	c->op = PL_op;
436	c->curpad = PL_curpad;	454	c->curpad = PL_curpad;
		455	c->comppad = PL_comppad;
437	c->stack_base = PL_stack_base;	456	c->stack_base = PL_stack_base;
438	c->stack_max = PL_stack_max;	457	c->stack_max = PL_stack_max;
439	c->tmps_stack = PL_tmps_stack;	458	c->tmps_stack = PL_tmps_stack;
440	c->tmps_floor = PL_tmps_floor;	459	c->tmps_floor = PL_tmps_floor;
441	c->tmps_ix = PL_tmps_ix;	460	c->tmps_ix = PL_tmps_ix;
…		…
451	c->savestack_max = PL_savestack_max;	470	c->savestack_max = PL_savestack_max;
452	c->retstack = PL_retstack;	471	c->retstack = PL_retstack;
453	c->retstack_ix = PL_retstack_ix;	472	c->retstack_ix = PL_retstack_ix;
454	c->retstack_max = PL_retstack_max;	473	c->retstack_max = PL_retstack_max;
455	c->curcop = PL_curcop;	474	c->curcop = PL_curcop;
456	c->start_env = PL_start_env;
457	c->top_env = PL_top_env;	475	c->top_env = PL_top_env;
458	}	476	}
459		477
460	/*	478	/*
461	* allocate various perl stacks. This is an exact copy	479	* allocate various perl stacks. This is an exact copy
462	* of perl.c:init_stacks, except that it uses less memory	480	* of perl.c:init_stacks, except that it uses less memory
463	* on the assumption that coroutines do not usually need	481	* on the (sometimes correct) assumption that coroutines do
464	* a lot of stackspace.	482	* not usually need a lot of stackspace.
465	*/	483	*/
466	STATIC void	484	STATIC void
467	coro_init_stacks (pTHX)	485	coro_init_stacks (pTHX)
468	{	486	{
		487	LOCK;
		488
469	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	489	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
470	PL_curstackinfo->si_type = PERLSI_MAIN;	490	PL_curstackinfo->si_type = PERLSI_MAIN;
471	PL_curstack = PL_curstackinfo->si_stack;	491	PL_curstack = PL_curstackinfo->si_stack;
472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	492	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
473		493
…		…
482		502
483	New(54,PL_markstack,16,I32);	503	New(54,PL_markstack,16,I32);
484	PL_markstack_ptr = PL_markstack;	504	PL_markstack_ptr = PL_markstack;
485	PL_markstack_max = PL_markstack + 16;	505	PL_markstack_max = PL_markstack + 16;
486		506
		507	#ifdef SET_MARK_OFFSET
487	SET_MARK_OFFSET;	508	SET_MARK_OFFSET;
		509	#endif
488		510
489	New(54,PL_scopestack,16,I32);	511	New(54,PL_scopestack,16,I32);
490	PL_scopestack_ix = 0;	512	PL_scopestack_ix = 0;
491	PL_scopestack_max = 16;	513	PL_scopestack_max = 16;
492		514
…		…
495	PL_savestack_max = 96;	517	PL_savestack_max = 96;
496		518
497	New(54,PL_retstack,8,OP*);	519	New(54,PL_retstack,8,OP*);
498	PL_retstack_ix = 0;	520	PL_retstack_ix = 0;
499	PL_retstack_max = 8;	521	PL_retstack_max = 8;
		522
		523	UNLOCK;
500	}	524	}
501		525
502	/*	526	/*
503	* destroy the stacks, the callchain etc...	527	* destroy the stacks, the callchain etc...
504	* still there is a memleak of 128 bytes...
505	*/	528	*/
506	STATIC void	529	STATIC void
507	destroy_stacks(pTHX)	530	destroy_stacks(pTHX)
508	{	531	{
		532	if (!IN_DESTRUCT)
		533	{
509	/* is this ugly, I ask? */	534	/* is this ugly, I ask? */
510	while (PL_scopestack_ix)	535	LEAVE_SCOPE (0);
511	LEAVE;
512		536
513	/* sure it is, but more important: is it correct?? :/ */	537	/* sure it is, but more important: is it correct?? :/ */
514	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
515	FREETMPS;	538	FREETMPS;
		539
		540	/POPSTACK_TO (PL_mainstack);//D//use/
		541	}
516		542
517	while (PL_curstackinfo->si_next)	543	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	544	PL_curstackinfo = PL_curstackinfo->si_next;
519		545
520	while (PL_curstackinfo)	546	while (PL_curstackinfo)
521	{	547	{
522	PERL_SI *p = PL_curstackinfo->si_prev;	548	PERL_SI *p = PL_curstackinfo->si_prev;
523		549
524	{	550	{ /D//remove/
525	dSP;	551	dSP;
526	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	552	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
527	PUTBACK; /* possibly superfluous */	553	PUTBACK; /* possibly superfluous */
528	}	554	}
529		555
530	dounwind(-1);	556	if (!IN_DESTRUCT)
531		557	{
		558	dounwind (-1);/D//remove/
532	SvREFCNT_dec(PL_curstackinfo->si_stack);	559	SvREFCNT_dec (PL_curstackinfo->si_stack);
		560	}
		561
533	Safefree(PL_curstackinfo->si_cxstack);	562	Safefree (PL_curstackinfo->si_cxstack);
534	Safefree(PL_curstackinfo);	563	Safefree (PL_curstackinfo);
535	PL_curstackinfo = p;	564	PL_curstackinfo = p;
536	}	565	}
537		566
538	Safefree(PL_tmps_stack);	567	Safefree (PL_tmps_stack);
539	Safefree(PL_markstack);	568	Safefree (PL_markstack);
540	Safefree(PL_scopestack);	569	Safefree (PL_scopestack);
541	Safefree(PL_savestack);	570	Safefree (PL_savestack);
542	Safefree(PL_retstack);	571	Safefree (PL_retstack);
543	}	572	}
544		573
545	static void	574	static void
546	allocate_stack (Coro__State ctx, int alloc)	575	allocate_stack (Coro__State ctx, int alloc)
547	{	576	{
…		…
550	New (0, stack, 1, coro_stack);	579	New (0, stack, 1, coro_stack);
551		580
552	stack->refcnt = 1;	581	stack->refcnt = 1;
553	stack->usecnt = 1;	582	stack->usecnt = 1;
554	stack->gencnt = ctx->gencnt = 0;	583	stack->gencnt = ctx->gencnt = 0;
		584
555	if (alloc)	585	if (alloc)
556	{	586	{
557	#ifdef HAVE_MMAP	587	#if HAVE_MMAP
558	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write */	588	stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
559	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	589	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
560	if (stack->sptr == (void *)-1)	590	if (stack->sptr == (void *)-1)
561	#endif	591	#endif
562	{	592	{
563	/FIXME//D//* reasonable stack size! */	593	/FIXME//D//* reasonable stack size! */
564	stack->ssize = -4096 * sizeof (long);	594	stack->ssize = - (8192 * sizeof (long));
565	New (0, stack->sptr, 4096, long);	595	New (0, stack->sptr, 8192, long);
566	}	596	}
567	}	597	}
568	else	598	else
569	stack->sptr = 0;	599	stack->sptr = 0;
570		600
…		…
584	{	614	{
585	#ifdef HAVE_MMAP	615	#ifdef HAVE_MMAP
586	if (stack->ssize > 0 && stack->sptr)	616	if (stack->ssize > 0 && stack->sptr)
587	munmap (stack->sptr, stack->ssize);	617	munmap (stack->sptr, stack->ssize);
588	else	618	else
589	#else	619	#endif
590	Safefree (stack->sptr);	620	Safefree (stack->sptr);
591	#endif	621
592	Safefree (stack);	622	Safefree (stack);
593	}	623	}
594	else if (ctx->gencnt == stack->gencnt)	624	else if (ctx->gencnt == stack->gencnt)
595	--stack->usecnt;	625	--stack->usecnt;
596	}	626	}
…		…
600	setup_coro (void *arg)	630	setup_coro (void *arg)
601	{	631	{
602	/*	632	/*
603	* emulate part of the perl startup here.	633	* emulate part of the perl startup here.
604	*/	634	*/
		635	dTHX;
605	dSP;	636	dSP;
606	Coro__State ctx = (Coro__State)arg;	637	Coro__State ctx = (Coro__State)arg;
607	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	638	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
608		639
609	coro_init_stacks (aTHX);	640	coro_init_stacks (aTHX);
610	JMPENV_BOOTSTRAP;	641	/PL_curcop = 0;/
		642	/PL_in_eval = PL_in_eval;/ /* inherit */
		643	SvREFCNT_dec (GvAV (PL_defgv));
		644	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
		645
611	SPAGAIN;	646	SPAGAIN;
612
613	/PL_curcop = 0;/
614	SvREFCNT_dec (GvAV (PL_defgv));
615	GvAV (PL_defgv) = ctx->args;
616		647
617	if (ctx->stack)	648	if (ctx->stack)
618	{	649	{
619	ctx->cursp = 0;	650	ctx->cursp = 0;
620		651
621	PUSHMARK(SP);	652	PUSHMARK(SP);
622	PUTBACK;	653	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	654	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		655
		656	if (SvTRUE (ERRSV))
		657	croak (NULL);
		658	else
624	croak ("FATAL: CCTXT coroutine returned!");	659	croak ("FATAL: CCTXT coroutine returned!");
625	}	660	}
626	else	661	else
627	{	662	{
628	UNOP myop;	663	UNOP myop;
629		664
…		…
641	* that doesn't matter, though, since it is only	676	* that doesn't matter, though, since it is only
642	* pp_nextstate and we never return...	677	* pp_nextstate and we never return...
643	* ah yes, and I don't care anyways ;)	678	* ah yes, and I don't care anyways ;)
644	*/	679	*/
645	PUTBACK;	680	PUTBACK;
646	PL_op = pp_entersub();	681	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
647	SPAGAIN;	682	SPAGAIN;
648		683
649	ENTER; /* necessary e.g. for dounwind */	684	ENTER; /* necessary e.g. for dounwind */
650	}	685	}
651	}	686	}
…		…
654	continue_coro (void *arg)	689	continue_coro (void *arg)
655	{	690	{
656	/*	691	/*
657	* this is a _very_ stripped down perl interpreter ;)	692	* this is a _very_ stripped down perl interpreter ;)
658	*/	693	*/
		694	dTHX;
659	Coro__State ctx = (Coro__State)arg;	695	Coro__State ctx = (Coro__State)arg;
		696	JMPENV coro_start_env;
		697
		698	PL_top_env = &ctx->start_env;
660		699
661	ctx->cursp = 0;	700	ctx->cursp = 0;
662	PL_op = PL_op->op_next;	701	PL_op = PL_op->op_next;
663	CALLRUNOPS(aTHX);	702	CALLRUNOPS(aTHX);
664	/NORETURN/	703
665	abort ();	704	abort ();
666	}	705	}
667		706
668	STATIC void	707	STATIC void
669	transfer(pTHX_ struct coro prev, struct coro next, int flags)	708	transfer (pTHX_ struct coro prev, struct coro next, int flags)
670	{	709	{
671	dSP;
672	dSTACKLEVEL;	710	dSTACKLEVEL;
673		711
674	if (prev != next)	712	if (prev != next)
675	{	713	{
676	if (next->mainstack)	714	if (next->mainstack)
677	{	715	{
		716	LOCK;
678	SAVE (prev, flags);	717	SAVE (prev, flags);
679	LOAD (next);	718	LOAD (next);
		719	UNLOCK;
680		720
681	/* mark this state as in-use */	721	/* mark this state as in-use */
682	next->mainstack = 0;	722	next->mainstack = 0;
683	next->tmps_ix = -2;	723	next->tmps_ix = -2;
684		724
…		…
703	continue_coro, (void *)next,	743	continue_coro, (void *)next,
704	next->stack->sptr, labs (next->stack->ssize));	744	next->stack->sptr, labs (next->stack->ssize));
705	}	745	}
706		746
707	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	747	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		748	prev->cursp = stacklevel;
		749	/* don't add any code here */
708	}	750	}
709		751	else
		752	next->cursp = stacklevel;
710	}	753	}
711	else if (next->tmps_ix == -2)	754	else if (next->tmps_ix == -2)
712	croak ("tried to transfer to running coroutine");	755	croak ("tried to transfer to running coroutine");
713	else	756	else
714	{	757	{
		758	LOCK;
715	SAVE (prev, -1); /* first get rid of the old state */	759	SAVE (prev, -1); /* first get rid of the old state */
		760	UNLOCK;
716		761
717	if (flags & TRANSFER_SAVE_CCTXT)	762	if (flags & TRANSFER_SAVE_CCTXT)
718	{	763	{
719	if (!prev->stack)	764	if (!prev->stack)
720	allocate_stack (prev, 0);	765	allocate_stack (prev, 0);
721		766
722	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	767	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
723	{	768	{
		769	PL_top_env = &next->start_env;
		770
724	setup_coro (next);	771	setup_coro (next);
		772	next->cursp = stacklevel;
725		773
726	prev->stack->refcnt++;	774	prev->stack->refcnt++;
727	prev->stack->usecnt++;	775	prev->stack->usecnt++;
728	next->stack = prev->stack;	776	next->stack = prev->stack;
729	next->gencnt = prev->gencnt;	777	next->gencnt = prev->gencnt;
730	}	778	}
731	else	779	else
732	{	780	{
		781	assert (!next->stack);
733	allocate_stack (next, 1);	782	allocate_stack (next, 1);
734	coro_create (&(next->stack->cctx),	783	coro_create (&(next->stack->cctx),
735	setup_coro, (void *)next,	784	setup_coro, (void *)next,
736	next->stack->sptr, labs (next->stack->ssize));	785	next->stack->sptr, labs (next->stack->ssize));
737	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	786	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		787	prev->cursp = stacklevel;
		788	/* don't add any code here */
738	}	789	}
739	}	790	}
740	else	791	else
		792	{
741	setup_coro (next);	793	setup_coro (next);
		794	next->cursp = stacklevel;
		795	}
742	}	796	}
743	}	797	}
744		798
745	next->cursp = stacklevel;	799	LOCK;
		800	if (coro_mortal)
		801	{
		802	SvREFCNT_dec (coro_mortal);
		803	coro_mortal = 0;
		804	}
		805	UNLOCK;
		806	}
		807
		808	#define SV_CORO(sv,func) \
		809	do { \
		810	if (SvROK (sv)) \
		811	sv = SvRV (sv); \
		812	\
		813	if (SvTYPE (sv) == SVt_PVHV) \
		814	{ \
		815	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		816	\
		817	if (!he) \
		818	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		819	\
		820	(sv) = SvRV (HeVAL(he)); \
		821	} \
		822	\
		823	/* must also be changed inside Coro::Cont::yield */ \
		824	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
		825	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		826	\
		827	} while(0)
		828
		829	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		830
		831	static void
		832	api_transfer(pTHX_ SV prev, SV next, int flags)
		833	{
		834	SV_CORO (prev, "Coro::transfer");
		835	SV_CORO (next, "Coro::transfer");
		836
		837	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		838	}
		839
		840	/ Coro ******************************************************************/
		841
		842	#define PRIO_MAX 3
		843	#define PRIO_HIGH 1
		844	#define PRIO_NORMAL 0
		845	#define PRIO_LOW -1
		846	#define PRIO_IDLE -3
		847	#define PRIO_MIN -4
		848
		849	/* for Coro.pm */
		850	static GV coro_current, coro_idle;
		851	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		852	static int coro_nready;
		853
		854	static void
		855	coro_enq (pTHX_ SV *sv)
		856	{
		857	if (SvTYPE (sv) == SVt_PVHV)
		858	{
		859	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		860	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		861
		862	prio = prio > PRIO_MAX ? PRIO_MAX
		863	: prio < PRIO_MIN ? PRIO_MIN
		864	: prio;
		865
		866	av_push (coro_ready [prio - PRIO_MIN], sv);
		867	coro_nready++;
		868
		869	return;
		870	}
		871
		872	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		873	}
		874
		875	static SV *
		876	coro_deq (pTHX_ int min_prio)
		877	{
		878	int prio = PRIO_MAX - PRIO_MIN;
		879
		880	min_prio -= PRIO_MIN;
		881	if (min_prio < 0)
		882	min_prio = 0;
		883
		884	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		885	if (av_len (coro_ready[prio]) >= 0)
		886	{
		887	coro_nready--;
		888	return av_shift (coro_ready[prio]);
		889	}
		890
		891	return 0;
		892	}
		893
		894	static void
		895	api_ready (SV *coro)
		896	{
		897	dTHX;
		898
		899	if (SvROK (coro))
		900	coro = SvRV (coro);
		901
		902	LOCK;
		903	coro_enq (aTHX_ SvREFCNT_inc (coro));
		904	UNLOCK;
		905	}
		906
		907	static void
		908	api_schedule (void)
		909	{
		910	dTHX;
		911
		912	SV prev, next;
		913
		914	LOCK;
		915
		916	prev = SvRV (GvSV (coro_current));
		917	next = coro_deq (aTHX_ PRIO_MIN);
		918
		919	if (!next)
		920	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		921
		922	/* free this only after the transfer */
		923	coro_mortal = prev;
		924	SV_CORO (prev, "Coro::schedule");
		925
		926	SvRV (GvSV (coro_current)) = next;
		927
		928	SV_CORO (next, "Coro::schedule");
		929
		930	UNLOCK;
		931
		932	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		933	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		934	}
		935
		936	static void
		937	api_cede (void)
		938	{
		939	dTHX;
		940
		941	LOCK;
		942	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		943	UNLOCK;
		944
		945	api_schedule ();
746	}	946	}
747		947
748	MODULE = Coro::State PACKAGE = Coro::State	948	MODULE = Coro::State PACKAGE = Coro::State
749		949
750	PROTOTYPES: ENABLE	950	PROTOTYPES: ENABLE
751		951
752	BOOT:	952	BOOT:
753	{ /* {} necessary for stoopid perl-5.6.x */	953	{ /* {} necessary for stoopid perl-5.6.x */
		954	#ifdef USE_ITHREADS
		955	MUTEX_INIT (&coro_mutex);
		956	#endif
		957
754	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	958	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
755	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	959	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
756	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	960	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
757		961
758	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	962	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
759	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	963	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
760	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	964	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
761	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	965	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
762		966
763	if (!padlist_cache)
764	padlist_cache = newHV ();
765
766	main_mainstack = PL_mainstack;	967	main_mainstack = PL_mainstack;
		968
		969	coroapi.ver = CORO_API_VERSION;
		970	coroapi.transfer = api_transfer;
767	}	971	}
768		972
769	Coro::State	973	Coro::State
770	_newprocess(args)	974	_newprocess(args)
771	SV * args	975	SV * args
…		…
774	Coro__State coro;	978	Coro__State coro;
775		979
776	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	980	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
777	croak ("Coro::State::_newprocess expects an arrayref");	981	croak ("Coro::State::_newprocess expects an arrayref");
778		982
779	New (0, coro, 1, struct coro);	983	Newz (0, coro, 1, struct coro);
780		984
781	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	985	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
782	coro->mainstack = 0; /* actual work is done inside transfer */	986	/coro->mainstack = 0; //actual work is done inside transfer /
783	coro->stack = 0;	987	/coro->stack = 0;/
		988
		989	/* same as JMPENV_BOOTSTRAP */
		990	/* we might be able to recycle start_env, but safe is safe */
		991	/Zero(&coro->start_env, 1, JMPENV);/
		992	coro->start_env.je_ret = -1;
		993	coro->start_env.je_mustcatch = TRUE;
784		994
785	RETVAL = coro;	995	RETVAL = coro;
786	OUTPUT:	996	OUTPUT:
787	RETVAL	997	RETVAL
788		998
789	void	999	void
790	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	1000	transfer(prev, next, flags)
791	Coro::State_or_hashref prev	1001	SV *prev
792	Coro::State_or_hashref next	1002	SV *next
793	int flags	1003	int flags
794	PROTOTYPE: @	1004	PROTOTYPE: @
795	CODE:	1005	CODE:
		1006	PUTBACK;
		1007	SV_CORO (next, "Coro::transfer");
		1008	SV_CORO (prev, "Coro::transfer");
796	transfer (aTHX_ prev, next, flags);	1009	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		1010	SPAGAIN;
797		1011
798	void	1012	void
799	DESTROY(coro)	1013	DESTROY(coro)
800	Coro::State coro	1014	Coro::State coro
801	CODE:	1015	CODE:
802		1016
803	if (coro->mainstack && coro->mainstack != main_mainstack)	1017	if (coro->mainstack && coro->mainstack != main_mainstack)
804	{	1018	{
805	struct coro temp;	1019	struct coro temp;
806		1020
		1021	PUTBACK;
807	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1022	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
808	LOAD(aTHX_ coro);	1023	LOAD (aTHX_ coro);
		1024	SPAGAIN;
809		1025
810	destroy_stacks (aTHX);	1026	destroy_stacks (aTHX);
811		1027
812	LOAD((&temp)); /* this will get rid of defsv etc.. */	1028	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1029	SPAGAIN;
813		1030
814	coro->mainstack = 0;	1031	coro->mainstack = 0;
815	}	1032	}
816		1033
817	deallocate_stack (coro);	1034	deallocate_stack (coro);
818		1035	SvREFCNT_dec (coro->args);
819	Safefree (coro);	1036	Safefree (coro);
820		1037
821	void	1038	void
822	flush()	1039	_exit(code)
		1040	int code
		1041	PROTOTYPE: $
823	CODE:	1042	CODE:
824	#ifdef MAY_FLUSH	1043	_exit (code);
825	flush_padlist_cache ();
826	#endif
827		1044
828	MODULE = Coro::State PACKAGE = Coro::Cont	1045	MODULE = Coro::State PACKAGE = Coro::Cont
829		1046
830	# this is slightly dirty	1047	# this is slightly dirty (should expose a c-level api)
831		1048
832	void	1049	void
833	yield(...)	1050	yield(...)
834	PROTOTYPE: @	1051	PROTOTYPE: @
835	CODE:	1052	CODE:
…		…
837	SV *sv;	1054	SV *sv;
838	AV *defav = GvAV (PL_defgv);	1055	AV *defav = GvAV (PL_defgv);
839	struct coro prev, next;	1056	struct coro prev, next;
840		1057
841	if (!returnstk)	1058	if (!returnstk)
842	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1059	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
843		1060
844	/* set up @_ -- ugly */	1061	/* set up @_ -- ugly */
845	av_clear (defav);	1062	av_clear (defav);
846	av_fill (defav, items - 1);	1063	av_fill (defav, items - 1);
847	while (items--)	1064	while (items--)
848	av_store (defav, items, SvREFCNT_inc (ST(items)));	1065	av_store (defav, items, SvREFCNT_inc (ST(items)));
849		1066
850	mg_get (returnstk); /* isn't documentation wrong for mg_get? */	1067	SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
851	sv = av_pop ((AV *)SvRV (returnstk));	1068	sv = av_pop ((AV *)SvRV (returnstk));
852	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1069	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
853	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1070	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
854	SvREFCNT_dec (sv);	1071	SvREFCNT_dec (sv);
855		1072
856	transfer(aTHX_ prev, next, 0);	1073	transfer (aTHX_ prev, next, 0);
857		1074
		1075	MODULE = Coro::State PACKAGE = Coro
		1076
		1077	# this is slightly dirty (should expose a c-level api)
		1078
		1079	BOOT:
		1080	{
		1081	int i;
		1082	HV *stash = gv_stashpv ("Coro", TRUE);
		1083
		1084	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1085	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1086	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1087	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1088	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1089	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1090
		1091	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1092	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1093
		1094	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1095	coro_ready[i] = newAV ();
		1096
		1097	{
		1098	SV *sv = perl_get_sv("Coro::API", 1);
		1099
		1100	coroapi.schedule = api_schedule;
		1101	coroapi.cede = api_cede;
		1102	coroapi.ready = api_ready;
		1103	coroapi.nready = &coro_nready;
		1104	coroapi.current = coro_current;
		1105
		1106	GCoroAPI = &coroapi;
		1107	sv_setiv(sv, (IV)&coroapi);
		1108	SvREADONLY_on(sv);
		1109	}
		1110	}
		1111
		1112	#if !PERL_MICRO
		1113
		1114	void
		1115	ready(self)
		1116	SV * self
		1117	PROTOTYPE: $
		1118	CODE:
		1119	api_ready (self);
		1120
		1121	#endif
		1122
		1123	int
		1124	nready(...)
		1125	PROTOTYPE:
		1126	CODE:
		1127	RETVAL = coro_nready;
		1128	OUTPUT:
		1129	RETVAL
		1130
		1131	void
		1132	schedule(...)
		1133	PROTOTYPE:
		1134	CODE:
		1135	api_schedule ();
		1136
		1137	void
		1138	cede(...)
		1139	PROTOTYPE:
		1140	CODE:
		1141	api_cede ();
		1142

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Comparing Coro/Coro/State.xs (file contents): Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs. Revision 1.61 by root, Tue Aug 10 01:56:30 2004 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.16 by root, Wed Jul 25 04:26:55 2001 UTC vs.
Revision 1.61 by root, Tue Aug 10 01:56:30 2004 UTC