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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.25 by root, Wed Aug 15 03:24:07 2001 UTC vs.
Revision 1.75 by root, Thu Oct 26 06:50:20 2006 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
		3	#include "libcoro/coro.c"
		4
1	#include "EXTERN.h"	5	#include "EXTERN.h"
2	#include "perl.h"	6	#include "perl.h"
3	#include "XSUB.h"	7	#include "XSUB.h"
4		8
5	#include "libcoro/coro.c"	9	#include "patchlevel.h"
6		10
		11	#if PERL_VERSION < 6
		12	# ifndef PL_ppaddr
		13	# define PL_ppaddr ppaddr
		14	# endif
		15	# ifndef call_sv
		16	# define call_sv perl_call_sv
		17	# endif
		18	# ifndef get_sv
		19	# define get_sv perl_get_sv
		20	# endif
		21	# ifndef get_cv
		22	# define get_cv perl_get_cv
		23	# endif
		24	# ifndef IS_PADGV
		25	# define IS_PADGV(v) 0
		26	# endif
		27	# ifndef IS_PADCONST
		28	# define IS_PADCONST(v) 0
		29	# endif
		30	#endif
		31
		32	#include <errno.h>
7	#include <signal.h>	33	#include <signal.h>
8		34
9	#ifdef HAVE_MMAP	35	#ifdef HAVE_MMAP
10	# include <unistd.h>	36	# include <unistd.h>
11	# include <sys/mman.h>	37	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	38	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	39	# ifdef MAP_ANON
		40	# define MAP_ANONYMOUS MAP_ANON
15	# else	41	# else
16	# undef HAVE_MMAP	42	# undef HAVE_MMAP
17	# endif	43	# endif
18	# endif	44	# endif
19	#endif	45	#endif
20		46
21	#define MAY_FLUSH /* increases codesize */
22
23	#define SUB_INIT "Coro::State::initialize"	47	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	48	#define UCORO_STATE "_coro_state"
25		49
26	/* The next macro should delcare a variable stacklevel that contains and approximation	50	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	51	* to the current C stack pointer. Its property is that it changes with each call
28	* and should be unique. */	52	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	53	#define dSTACKLEVEL void *stacklevel = &stacklevel
30		54
		55	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		56
31	#define labs(l) ((l) >= 0 ? (l) : -(l))	57	#define labs(l) ((l) >= 0 ? (l) : -(l))
32		58
33	#include "CoroAPI.h"	59	#include "CoroAPI.h"
34		60
		61	#ifdef USE_ITHREADS
		62	static perl_mutex coro_mutex;
		63	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		64	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		65	#else
		66	# define LOCK (void)0
		67	# define UNLOCK (void)0
		68	#endif
		69
35	static struct CoroAPI coroapi;	70	static struct CoroAPI coroapi;
		71	static AV main_mainstack; / used to differentiate between $main and others */
		72	static HV *coro_state_stash;
		73	static SV *ucoro_state_sv;
		74	static U32 ucoro_state_hash;
		75	static SV coro_mortal; / will be freed after next transfer */
36		76
37	/* this is actually not only the c stack but also c registers etc... */	77	/* this is actually not only the c stack but also c registers etc... */
38	typedef struct {	78	typedef struct {
39	int refcnt; /* pointer reference counter */	79	int refcnt; /* pointer reference counter */
40	int usecnt; /* shared by how many coroutines */	80	int usecnt; /* shared by how many coroutines */
45	void *sptr;	85	void *sptr;
46	long ssize; /* positive == mmap, otherwise malloc */	86	long ssize; /* positive == mmap, otherwise malloc */
47	} coro_stack;	87	} coro_stack;
48		88
49	struct coro {	89	struct coro {
		90	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		91	JMPENV start_env;
		92
50	/* the optional C context */	93	/* the optional C context */
51	coro_stack *stack;	94	coro_stack *stack;
52	void *cursp;	95	void *cursp;
53	int gencnt;	96	int gencnt;
54		97
…		…
66	AV *curstack;	109	AV *curstack;
67	AV *mainstack;	110	AV *mainstack;
68	SV **stack_sp;	111	SV **stack_sp;
69	OP *op;	112	OP *op;
70	SV **curpad;	113	SV **curpad;
		114	AV *comppad;
		115	CV *compcv;
71	SV **stack_base;	116	SV **stack_base;
72	SV **stack_max;	117	SV **stack_max;
73	SV **tmps_stack;	118	SV **tmps_stack;
74	I32 tmps_floor;	119	I32 tmps_floor;
75	I32 tmps_ix;	120	I32 tmps_ix;
…		…
84	I32 savestack_ix;	129	I32 savestack_ix;
85	I32 savestack_max;	130	I32 savestack_max;
86	OP **retstack;	131	OP **retstack;
87	I32 retstack_ix;	132	I32 retstack_ix;
88	I32 retstack_max;	133	I32 retstack_max;
		134	PMOP *curpm;
89	COP *curcop;	135	COP *curcop;
90	JMPENV *top_env;	136	JMPENV *top_env;
91		137
92	/* data associated with this coroutine (initial args) */	138	/* data associated with this coroutine (initial args) */
93	AV *args;	139	AV *args;
94	};	140	};
95		141
96	typedef struct coro *Coro__State;	142	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	143	typedef struct coro *Coro__State_or_hashref;
98		144
99	static AV main_mainstack; / used to differentiate between $main and others */
100	static HV *coro_state_stash;
101	static SV *ucoro_state_sv;
102	static U32 ucoro_state_hash;
103	static HV *padlist_cache;
104
105	/* mostly copied from op.c:cv_clone2 */	145	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *	146	STATIC AV *
107	clone_padlist (AV *protopadlist)	147	clone_padlist (pTHX_ AV *protopadlist)
108	{	148	{
109	AV *av;	149	AV *av;
110	I32 ix;	150	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	151	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	152	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
131	av_store (newpadlist, 1, (SV *) newpad);	171	av_store (newpadlist, 1, (SV *) newpad);
132		172
133	av = newAV (); /* will be @_ */	173	av = newAV (); /* will be @_ */
134	av_extend (av, 0);	174	av_extend (av, 0);
135	av_store (newpad, 0, (SV *) av);	175	av_store (newpad, 0, (SV *) av);
136	AvFLAGS (av) = AVf_REIFY;	176	AvREIFY_on (av);
137		177
138	for (ix = fpad; ix > 0; ix--)	178	for (ix = fpad; ix > 0; ix--)
139	{	179	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	180	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		181
141	if (namesv && namesv != &PL_sv_undef)	182	if (namesv && namesv != &PL_sv_undef)
142	{	183	{
143	char name = SvPVX (namesv); / XXX */	184	char name = SvPVX (namesv); / XXX */
		185
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	186	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
145	{ /* lexical from outside? */	187	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);	188	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	189	}
148	else	190	else
…		…
154	sv = (SV *) newAV ();	196	sv = (SV *) newAV ();
155	else if (*name == '%')	197	else if (*name == '%')
156	sv = (SV *) newHV ();	198	sv = (SV *) newHV ();
157	else	199	else
158	sv = NEWSV (0, 0);	200	sv = NEWSV (0, 0);
		201
		202	#ifdef SvPADBUSY
159	if (!SvPADBUSY (sv))	203	if (!SvPADBUSY (sv))
		204	#endif
160	SvPADMY_on (sv);	205	SvPADMY_on (sv);
		206
161	npad[ix] = sv;	207	npad[ix] = sv;
162	}	208	}
163	}	209	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	210	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
165	{	211	{
…		…
194	#endif	240	#endif
195		241
196	return newpadlist;	242	return newpadlist;
197	}	243	}
198		244
199	#ifdef MAY_FLUSH	245	STATIC void
200	STATIC AV *
201	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
202	{	247	{
203	/* may be during global destruction */	248	/* may be during global destruction */
204	if (SvREFCNT(padlist))	249	if (SvREFCNT (padlist))
205	{	250	{
206	I32 i = AvFILLp(padlist);	251	I32 i = AvFILLp (padlist);
207	while (i >= 0)	252	while (i >= 0)
208	{	253	{
209	SV **svp = av_fetch(padlist, i--, FALSE);	254	SV **svp = av_fetch (padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)	255	if (svp)
		256	{
		257	SV *sv;
		258	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
212	SvREFCNT_dec(sv);	259	SvREFCNT_dec (sv);
		260
		261	SvREFCNT_dec (*svp);
		262	}
213	}	263	}
214		264
215	SvREFCNT_dec((SV*)padlist);	265	SvREFCNT_dec ((SV*)padlist);
216	}	266	}
217	}	267	}
218	#endif	268
		269	STATIC int
		270	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		271	{
		272	AV *padlist;
		273	AV av = (AV )mg->mg_obj;
		274
		275	/* casting is fun. */
		276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		277	free_padlist (aTHX_ padlist);
		278
		279	SvREFCNT_dec (av);
		280	}
		281
		282	#define PERL_MAGIC_coro PERL_MAGIC_ext
		283
		284	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
219		285
220	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
221	STATIC void	287	STATIC void
222	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
223	{	289	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	290	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
225		291
226	if (he && AvFILLp ((AV )he) >= 0)	292	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	293	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
228	else	294	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	295	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
230	}	296	}
231		297
232	STATIC void	298	STATIC void
233	put_padlist (CV *cv)	299	put_padlist (pTHX_ CV *cv)
234	{	300	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	301	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		302
237	if (SvTYPE (*he) != SVt_PVAV)	303	if (!mg)
238	{	304	{
239	SvREFCNT_dec (*he);	305	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		306	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		307	mg->mg_virtual = &vtbl_coro;
240	he = (SV )newAV ();	308	mg->mg_obj = (SV *)newAV ();
241	}	309	}
242		310
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	311	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	312	}
245
246	#ifdef MAY_FLUSH
247	STATIC void
248	flush_padlist_cache ()
249	{
250	HV *hv = padlist_cache;
251	padlist_cache = newHV ();
252
253	if (hv_iterinit (hv))
254	{
255	HE *he;
256	AV *padlist;
257
258	while (!!(he = hv_iternext (hv)))
259	{
260	AV av = (AV )HeVAL(he);
261
262	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);
265	}
266	}
267
268	SvREFCNT_dec (hv);
269	}
270	#endif
271		313
272	#define SB do {	314	#define SB do {
273	#define SE } while (0)	315	#define SE } while (0)
274		316
275	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	317	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	318	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		319
278	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	320	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
279		321
280	static void	322	static void
281	load_state(pTHX_ Coro__State c)	323	load_state(pTHX_ Coro__State c)
282	{	324	{
283	PL_dowarn = c->dowarn;	325	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	329	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	330	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	331	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	332	PL_op = c->op;
291	PL_curpad = c->curpad;	333	PL_curpad = c->curpad;
		334	PL_comppad = c->comppad;
		335	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	336	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	337	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	338	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	339	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	340	PL_tmps_ix = c->tmps_ix;
…		…
302	PL_scopestack_ix = c->scopestack_ix;	346	PL_scopestack_ix = c->scopestack_ix;
303	PL_scopestack_max = c->scopestack_max;	347	PL_scopestack_max = c->scopestack_max;
304	PL_savestack = c->savestack;	348	PL_savestack = c->savestack;
305	PL_savestack_ix = c->savestack_ix;	349	PL_savestack_ix = c->savestack_ix;
306	PL_savestack_max = c->savestack_max;	350	PL_savestack_max = c->savestack_max;
		351	#if PERL_VERSION < 9
307	PL_retstack = c->retstack;	352	PL_retstack = c->retstack;
308	PL_retstack_ix = c->retstack_ix;	353	PL_retstack_ix = c->retstack_ix;
309	PL_retstack_max = c->retstack_max;	354	PL_retstack_max = c->retstack_max;
		355	#endif
		356	PL_curpm = c->curpm;
310	PL_curcop = c->curcop;	357	PL_curcop = c->curcop;
311	PL_top_env = c->top_env;	358	PL_top_env = c->top_env;
312		359
313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	360	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	361	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
323	{	370	{
324	AV padlist = (AV )POPs;	371	AV padlist = (AV )POPs;
325		372
326	if (padlist)	373	if (padlist)
327	{	374	{
328	put_padlist (cv); /* mark this padlist as available */	375	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	376	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	377	}
334		378
335	++CvDEPTH(cv);	379	++CvDEPTH(cv);
336	}	380	}
337		381
…		…
355		399
356	PUSHs (Nullsv);	400	PUSHs (Nullsv);
357	/* this loop was inspired by pp_caller */	401	/* this loop was inspired by pp_caller */
358	for (;;)	402	for (;;)
359	{	403	{
360	do	404	while (cxix >= 0)
361	{	405	{
362	PERL_CONTEXT *cx = &ccstk[cxix--];	406	PERL_CONTEXT *cx = &ccstk[cxix--];
363		407
364	if (CxTYPE(cx) == CXt_SUB)	408	if (CxTYPE(cx) == CXt_SUB)
365	{	409	{
366	CV *cv = cx->blk_sub.cv;	410	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	411	if (CvDEPTH(cv))
368	{	412	{
369	#ifdef USE_THREADS
370	/XPUSHs ((SV )CvOWNER(cv));*/
371	/CvOWNER(cv) = 0;/
372	/error must unlock this cv etc.. etc.../
373	#endif
374	EXTEND (SP, CvDEPTH(cv)*2);	413	EXTEND (SP, CvDEPTH(cv)*2);
375		414
376	while (--CvDEPTH(cv))	415	while (--CvDEPTH(cv))
377	{	416	{
378	/* this tells the restore code to increment CvDEPTH */	417	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	420	}
382		421
383	PUSHs ((SV *)CvPADLIST(cv));	422	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	423	PUSHs ((SV *)cv);
385		424
386	get_padlist (cv); /* this is a monster */	425	get_padlist (aTHX_ cv); /* this is a monster */
387	}	426	}
388	}	427	}
		428	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	429	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	430	{
391	/* I never used formats, so how should I know how these are implemented? */	431	/* I never used formats, so how should I know how these are implemented? */
392	/* my bold guess is as a simple, plain sub... */	432	/* my bold guess is as a simple, plain sub... */
393	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	433	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
394	}	434	}
		435	#endif
395	}	436	}
396	while (cxix >= 0);
397		437
398	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
399	break;	439	break;
400		440
401	top_si = top_si->si_prev;	441	top_si = top_si->si_prev;
…		…
407	}	447	}
408		448
409	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	449	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
410	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	450	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
411	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	451	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
412
413	/* I have not the slightest idea of why av_reify is necessary */
414	/* but if it's missing the defav contents magically get replaced sometimes */
415	if (c->defav)
416	av_reify (c->defav);
417		452
418	c->dowarn = PL_dowarn;	453	c->dowarn = PL_dowarn;
419	c->in_eval = PL_in_eval;	454	c->in_eval = PL_in_eval;
420		455
421	c->curstackinfo = PL_curstackinfo;	456	c->curstackinfo = PL_curstackinfo;
422	c->curstack = PL_curstack;	457	c->curstack = PL_curstack;
423	c->mainstack = PL_mainstack;	458	c->mainstack = PL_mainstack;
424	c->stack_sp = PL_stack_sp;	459	c->stack_sp = PL_stack_sp;
425	c->op = PL_op;	460	c->op = PL_op;
426	c->curpad = PL_curpad;	461	c->curpad = PL_curpad;
		462	c->comppad = PL_comppad;
		463	c->compcv = PL_compcv;
427	c->stack_base = PL_stack_base;	464	c->stack_base = PL_stack_base;
428	c->stack_max = PL_stack_max;	465	c->stack_max = PL_stack_max;
429	c->tmps_stack = PL_tmps_stack;	466	c->tmps_stack = PL_tmps_stack;
430	c->tmps_floor = PL_tmps_floor;	467	c->tmps_floor = PL_tmps_floor;
431	c->tmps_ix = PL_tmps_ix;	468	c->tmps_ix = PL_tmps_ix;
…		…
437	c->scopestack_ix = PL_scopestack_ix;	474	c->scopestack_ix = PL_scopestack_ix;
438	c->scopestack_max = PL_scopestack_max;	475	c->scopestack_max = PL_scopestack_max;
439	c->savestack = PL_savestack;	476	c->savestack = PL_savestack;
440	c->savestack_ix = PL_savestack_ix;	477	c->savestack_ix = PL_savestack_ix;
441	c->savestack_max = PL_savestack_max;	478	c->savestack_max = PL_savestack_max;
		479	#if PERL_VERSION < 9
442	c->retstack = PL_retstack;	480	c->retstack = PL_retstack;
443	c->retstack_ix = PL_retstack_ix;	481	c->retstack_ix = PL_retstack_ix;
444	c->retstack_max = PL_retstack_max;	482	c->retstack_max = PL_retstack_max;
		483	#endif
		484	c->curpm = PL_curpm;
445	c->curcop = PL_curcop;	485	c->curcop = PL_curcop;
446	c->top_env = PL_top_env;	486	c->top_env = PL_top_env;
447	}	487	}
448		488
449	/*	489	/*
450	* allocate various perl stacks. This is an exact copy	490	* allocate various perl stacks. This is an exact copy
451	* of perl.c:init_stacks, except that it uses less memory	491	* of perl.c:init_stacks, except that it uses less memory
452	* on the assumption that coroutines do not usually need	492	* on the (sometimes correct) assumption that coroutines do
453	* a lot of stackspace.	493	* not usually need a lot of stackspace.
454	*/	494	*/
455	STATIC void	495	STATIC void
456	coro_init_stacks (pTHX)	496	coro_init_stacks (pTHX)
457	{	497	{
		498	LOCK;
		499
458	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	500	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
459	PL_curstackinfo->si_type = PERLSI_MAIN;	501	PL_curstackinfo->si_type = PERLSI_MAIN;
460	PL_curstack = PL_curstackinfo->si_stack;	502	PL_curstack = PL_curstackinfo->si_stack;
461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	503	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462		504
…		…
471		513
472	New(54,PL_markstack,16,I32);	514	New(54,PL_markstack,16,I32);
473	PL_markstack_ptr = PL_markstack;	515	PL_markstack_ptr = PL_markstack;
474	PL_markstack_max = PL_markstack + 16;	516	PL_markstack_max = PL_markstack + 16;
475		517
		518	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	519	SET_MARK_OFFSET;
		520	#endif
477		521
478	New(54,PL_scopestack,16,I32);	522	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	523	PL_scopestack_ix = 0;
480	PL_scopestack_max = 16;	524	PL_scopestack_max = 16;
481		525
482	New(54,PL_savestack,96,ANY);	526	New(54,PL_savestack,96,ANY);
483	PL_savestack_ix = 0;	527	PL_savestack_ix = 0;
484	PL_savestack_max = 96;	528	PL_savestack_max = 96;
485		529
		530	#if PERL_VERSION < 9
486	New(54,PL_retstack,8,OP*);	531	New(54,PL_retstack,8,OP*);
487	PL_retstack_ix = 0;	532	PL_retstack_ix = 0;
488	PL_retstack_max = 8;	533	PL_retstack_max = 8;
		534	#endif
		535
		536	UNLOCK;
489	}	537	}
490		538
491	/*	539	/*
492	* destroy the stacks, the callchain etc...	540	* destroy the stacks, the callchain etc...
493	* still there is a memleak of 128 bytes...
494	*/	541	*/
495	STATIC void	542	STATIC void
496	destroy_stacks(pTHX)	543	destroy_stacks(pTHX)
497	{	544	{
		545	if (!IN_DESTRUCT)
		546	{
498	/* is this ugly, I ask? */	547	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	548	LEAVE_SCOPE (0);
500	LEAVE;
501		549
502	/* sure it is, but more important: is it correct?? :/ */	550	/* sure it is, but more important: is it correct?? :/ */
503	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
504	FREETMPS;	551	FREETMPS;
		552
		553	/POPSTACK_TO (PL_mainstack);//D//use/
		554	}
505		555
506	while (PL_curstackinfo->si_next)	556	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	557	PL_curstackinfo = PL_curstackinfo->si_next;
508		558
509	while (PL_curstackinfo)	559	while (PL_curstackinfo)
510	{	560	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	561	PERL_SI *p = PL_curstackinfo->si_prev;
512		562
513	{	563	{ /D//remove/
514	dSP;	564	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	565	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	566	PUTBACK; /* possibly superfluous */
517	}	567	}
518		568
519	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */	569	if (!IN_DESTRUCT)
520	dounwind(-1);	570	{
521		571	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	572	SvREFCNT_dec (PL_curstackinfo->si_stack);
		573	}
		574
523	Safefree(PL_curstackinfo->si_cxstack);	575	Safefree (PL_curstackinfo->si_cxstack);
524	Safefree(PL_curstackinfo);	576	Safefree (PL_curstackinfo);
525	PL_curstackinfo = p;	577	PL_curstackinfo = p;
526	}	578	}
527		579
528	Safefree(PL_tmps_stack);	580	Safefree (PL_tmps_stack);
529	Safefree(PL_markstack);	581	Safefree (PL_markstack);
530	Safefree(PL_scopestack);	582	Safefree (PL_scopestack);
531	Safefree(PL_savestack);	583	Safefree (PL_savestack);
		584	#if PERL_VERSION < 9
532	Safefree(PL_retstack);	585	Safefree (PL_retstack);
		586	#endif
533	}	587	}
534		588
535	static void	589	static void
536	allocate_stack (Coro__State ctx, int alloc)	590	allocate_stack (Coro__State ctx, int alloc)
537	{	591	{
…		…
540	New (0, stack, 1, coro_stack);	594	New (0, stack, 1, coro_stack);
541		595
542	stack->refcnt = 1;	596	stack->refcnt = 1;
543	stack->usecnt = 1;	597	stack->usecnt = 1;
544	stack->gencnt = ctx->gencnt = 0;	598	stack->gencnt = ctx->gencnt = 0;
		599
545	if (alloc)	600	if (alloc)
546	{	601	{
547	#ifdef HAVE_MMAP	602	#if HAVE_MMAP
548	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	603	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
549	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	604	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
550	if (stack->sptr == (void *)-1)	605	if (stack->sptr == (void *)-1)
551	#endif	606	#endif
552	{	607	{
553	/FIXME//D//* reasonable stack size! */	608	/FIXME//D//* reasonable stack size! */
554	stack->ssize = -4096 * sizeof (long);	609	stack->ssize = - (STACKSIZE * sizeof (long));
555	New (0, stack->sptr, 4096, long);	610	New (0, stack->sptr, STACKSIZE, long);
556	}	611	}
557	}	612	}
558	else	613	else
559	stack->sptr = 0;	614	stack->sptr = 0;
560		615
…		…
574	{	629	{
575	#ifdef HAVE_MMAP	630	#ifdef HAVE_MMAP
576	if (stack->ssize > 0 && stack->sptr)	631	if (stack->ssize > 0 && stack->sptr)
577	munmap (stack->sptr, stack->ssize);	632	munmap (stack->sptr, stack->ssize);
578	else	633	else
579	#else	634	#endif
580	Safefree (stack->sptr);	635	Safefree (stack->sptr);
581	#endif	636
582	Safefree (stack);	637	Safefree (stack);
583	}	638	}
584	else if (ctx->gencnt == stack->gencnt)	639	else if (ctx->gencnt == stack->gencnt)
585	--stack->usecnt;	640	--stack->usecnt;
586	}	641	}
…		…
590	setup_coro (void *arg)	645	setup_coro (void *arg)
591	{	646	{
592	/*	647	/*
593	* emulate part of the perl startup here.	648	* emulate part of the perl startup here.
594	*/	649	*/
		650	dTHX;
595	dSP;	651	dSP;
596	Coro__State ctx = (Coro__State)arg;	652	Coro__State ctx = (Coro__State)arg;
597	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	653	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
598		654
599	coro_init_stacks (aTHX);	655	coro_init_stacks (aTHX);
600	/PL_curcop = 0;/	656	/PL_curcop = 0;/
601	/PL_in_eval = PL_in_eval;/ /* inherit */	657	/PL_in_eval = PL_in_eval;/ /* inherit */
602	SvREFCNT_dec (GvAV (PL_defgv));	658	SvREFCNT_dec (GvAV (PL_defgv));
603	GvAV (PL_defgv) = ctx->args;	659	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
604		660
605	SPAGAIN;	661	SPAGAIN;
606		662
607	if (ctx->stack)	663	if (ctx->stack)
608	{	664	{
…		…
635	* that doesn't matter, though, since it is only	691	* that doesn't matter, though, since it is only
636	* pp_nextstate and we never return...	692	* pp_nextstate and we never return...
637	* ah yes, and I don't care anyways ;)	693	* ah yes, and I don't care anyways ;)
638	*/	694	*/
639	PUTBACK;	695	PUTBACK;
640	PL_op = pp_entersub();	696	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
641	SPAGAIN;	697	SPAGAIN;
642		698
643	ENTER; /* necessary e.g. for dounwind */	699	ENTER; /* necessary e.g. for dounwind */
644	}	700	}
645	}	701	}
…		…
648	continue_coro (void *arg)	704	continue_coro (void *arg)
649	{	705	{
650	/*	706	/*
651	* this is a _very_ stripped down perl interpreter ;)	707	* this is a _very_ stripped down perl interpreter ;)
652	*/	708	*/
		709	dTHX;
653	Coro__State ctx = (Coro__State)arg;	710	Coro__State ctx = (Coro__State)arg;
		711	JMPENV coro_start_env;
654		712
655	/FIXME//* must set up top_env here */	713	PL_top_env = &ctx->start_env;
		714
656	ctx->cursp = 0;	715	ctx->cursp = 0;
657	PL_op = PL_op->op_next;	716	PL_op = PL_op->op_next;
658	CALLRUNOPS(aTHX);	717	CALLRUNOPS(aTHX);
659		718
660	abort ();	719	abort ();
661	}	720	}
662		721
663	STATIC void	722	STATIC void
664	transfer(pTHX_ struct coro prev, struct coro next, int flags)	723	transfer (pTHX_ struct coro prev, struct coro next, int flags)
665	{	724	{
666	dSP;
667	dSTACKLEVEL;	725	dSTACKLEVEL;
668		726
669	if (prev != next)	727	if (prev != next)
670	{	728	{
671	if (next->mainstack)	729	if (next->mainstack)
672	{	730	{
		731	LOCK;
673	SAVE (prev, flags);	732	SAVE (prev, flags);
674	LOAD (next);	733	LOAD (next);
		734	UNLOCK;
675		735
676	/* mark this state as in-use */	736	/* mark this state as in-use */
677	next->mainstack = 0;	737	next->mainstack = 0;
678	next->tmps_ix = -2;	738	next->tmps_ix = -2;
679		739
…		…
698	continue_coro, (void *)next,	758	continue_coro, (void *)next,
699	next->stack->sptr, labs (next->stack->ssize));	759	next->stack->sptr, labs (next->stack->ssize));
700	}	760	}
701		761
702	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	762	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		763	prev->cursp = stacklevel;
		764	/* don't add any code here */
703	}	765	}
704		766	else
		767	next->cursp = stacklevel;
705	}	768	}
706	else if (next->tmps_ix == -2)	769	else if (next->tmps_ix == -2)
707	croak ("tried to transfer to running coroutine");	770	croak ("tried to transfer to running coroutine");
708	else	771	else
709	{	772	{
		773	LOCK;
710	SAVE (prev, -1); /* first get rid of the old state */	774	SAVE (prev, -1); /* first get rid of the old state */
		775	UNLOCK;
711		776
712	if (flags & TRANSFER_SAVE_CCTXT)	777	if (flags & TRANSFER_SAVE_CCTXT)
713	{	778	{
714	if (!prev->stack)	779	if (!prev->stack)
715	allocate_stack (prev, 0);	780	allocate_stack (prev, 0);
716		781
717	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	782	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
718	{	783	{
		784	PL_top_env = &next->start_env;
		785
719	setup_coro (next);	786	setup_coro (next);
		787	next->cursp = stacklevel;
720		788
721	prev->stack->refcnt++;	789	prev->stack->refcnt++;
722	prev->stack->usecnt++;	790	prev->stack->usecnt++;
723	next->stack = prev->stack;	791	next->stack = prev->stack;
724	next->gencnt = prev->gencnt;	792	next->gencnt = prev->gencnt;
725	}	793	}
726	else	794	else
727	{	795	{
		796	assert (!next->stack);
728	allocate_stack (next, 1);	797	allocate_stack (next, 1);
729	coro_create (&(next->stack->cctx),	798	coro_create (&(next->stack->cctx),
730	setup_coro, (void *)next,	799	setup_coro, (void *)next,
731	next->stack->sptr, labs (next->stack->ssize));	800	next->stack->sptr, labs (next->stack->ssize));
732	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	801	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		802	prev->cursp = stacklevel;
		803	/* don't add any code here */
733	}	804	}
734	}	805	}
735	else	806	else
		807	{
736	setup_coro (next);	808	setup_coro (next);
		809	next->cursp = stacklevel;
		810	}
737	}	811	}
738	}	812	}
739		813
740	next->cursp = stacklevel;	814	LOCK;
741	}	815	if (coro_mortal)
742
743	static struct coro *
744	sv_to_coro (SV arg, const char funcname, const char *varname)
745	{
746	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
747	{	816	{
748	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	817	SvREFCNT_dec (coro_mortal);
749		818	coro_mortal = 0;
750	if (!he)
751	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
752
753	arg = HeVAL(he);
754	}	819	}
755		820	UNLOCK;
		821	}
		822
		823	#define SV_CORO(sv,func) \
		824	do { \
		825	if (SvROK (sv)) \
		826	sv = SvRV (sv); \
		827	\
		828	if (SvTYPE (sv) == SVt_PVHV) \
		829	{ \
		830	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		831	\
		832	if (!he) \
		833	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		834	\
		835	(sv) = SvRV (HeVAL(he)); \
		836	} \
		837	\
756	/* must also be changed inside Coro::Cont::yield */	838	/* must also be changed inside Coro::Cont::yield */ \
757	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	839	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
758	return (struct coro ) SvIV((SV)SvRV(arg));
759	else
760	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	840	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
761	}	841	\
		842	} while(0)
		843
		844	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
762		845
763	static void	846	static void
764	api_transfer(pTHX_ SV prev, SV next, int flags)	847	api_transfer(pTHX_ SV prev, SV next, int flags)
765	{	848	{
766	transfer(aTHX_ sv_to_coro (prev, "Coro::transfer", "prev"),	849	SV_CORO (prev, "Coro::transfer");
767	sv_to_coro (next, "Coro::transfer", "next"),	850	SV_CORO (next, "Coro::transfer");
768	flags);	851
		852	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
769	}	853	}
770		854
771	/ Coro ******************************************************************/	855	/ Coro ******************************************************************/
772		856
773	#define PRIO_MAX 3	857	#define PRIO_MAX 3
…		…
781	static GV coro_current, coro_idle;	865	static GV coro_current, coro_idle;
782	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	866	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
783	static int coro_nready;	867	static int coro_nready;
784		868
785	static void	869	static void
786	coro_enq (SV *sv)	870	coro_enq (pTHX_ SV *sv)
787	{	871	{
788	if (SvROK (sv))	872	SV **xprio;
789	{	873	int prio;
790	SV *hv = SvRV (sv);	874
791	if (SvTYPE (hv) == SVt_PVHV)	875	if (SvTYPE (sv) != SVt_PVHV)
792	{
793	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
794	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
795
796	prio = prio > PRIO_MAX ? PRIO_MAX
797	: prio < PRIO_MIN ? PRIO_MIN
798	: prio;
799
800	av_push (coro_ready [prio - PRIO_MIN], sv);
801	coro_nready++;
802
803	return;
804	}
805	}
806
807	croak ("Coro::ready tried to enqueue something that is not a coroutine");	876	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		877
		878	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		879	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		880
		881	prio = prio > PRIO_MAX ? PRIO_MAX
		882	: prio < PRIO_MIN ? PRIO_MIN
		883	: prio;
		884
		885	av_push (coro_ready [prio - PRIO_MIN], sv);
		886	coro_nready++;
808	}	887	}
809		888
810	static SV *	889	static SV *
811	coro_deq (int min_prio)	890	coro_deq (pTHX_ int min_prio)
812	{	891	{
813	int prio = PRIO_MAX - PRIO_MIN;	892	int prio = PRIO_MAX - PRIO_MIN;
814		893
815	min_prio -= PRIO_MIN;	894	min_prio -= PRIO_MIN;
816	if (min_prio < 0)	895	if (min_prio < 0)
…		…
827	}	906	}
828		907
829	static void	908	static void
830	api_ready (SV *coro)	909	api_ready (SV *coro)
831	{	910	{
		911	dTHX;
		912
		913	if (SvROK (coro))
		914	coro = SvRV (coro);
		915
		916	LOCK;
832	coro_enq (SvREFCNT_inc (coro));	917	coro_enq (aTHX_ SvREFCNT_inc (coro));
		918	UNLOCK;
833	}	919	}
834		920
835	static void	921	static void
836	api_schedule (int cede)	922	api_schedule (void)
837	{	923	{
		924	dTHX;
		925
838	SV prev, next;	926	SV prev, next;
839		927
		928	LOCK;
		929
840	prev = GvSV (coro_current);	930	prev = SvRV (GvSV (coro_current));
841
842	if (cede)
843	coro_enq (SvREFCNT_inc (prev));
844
845	next = coro_deq (PRIO_MIN);	931	next = coro_deq (aTHX_ PRIO_MIN);
846		932
847	if (!next)	933	if (!next)
848	next = SvREFCNT_inc (GvSV (coro_idle));	934	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
849		935
850	GvSV (coro_current) = SvREFCNT_inc (next);	936	/* free this only after the transfer */
851	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),	937	coro_mortal = prev;
852	sv_to_coro (next, "Coro::schedule", "next coroutine"),	938	SV_CORO (prev, "Coro::schedule");
		939
		940	SvRV (GvSV (coro_current)) = next;
		941
		942	SV_CORO (next, "Coro::schedule");
		943
		944	UNLOCK;
		945
		946	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
853	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	947	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
854	SvREFCNT_dec (next);	948	}
855	SvREFCNT_dec (prev);	949
		950	static void
		951	api_cede (void)
		952	{
		953	dTHX;
		954
		955	LOCK;
		956	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		957	UNLOCK;
		958
		959	api_schedule ();
856	}	960	}
857		961
858	MODULE = Coro::State PACKAGE = Coro::State	962	MODULE = Coro::State PACKAGE = Coro::State
859		963
860	PROTOTYPES: ENABLE	964	PROTOTYPES: ENABLE
861		965
862	BOOT:	966	BOOT:
863	{ /* {} necessary for stoopid perl-5.6.x */	967	{ /* {} necessary for stoopid perl-5.6.x */
		968	#ifdef USE_ITHREADS
		969	MUTEX_INIT (&coro_mutex);
		970	#endif
		971
864	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	972	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
865	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	973	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
866	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	974	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
867		975
868	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	976	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
869	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	977	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
870	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	978	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
871	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	979	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
872		980
873	if (!padlist_cache)
874	padlist_cache = newHV ();
875
876	main_mainstack = PL_mainstack;	981	main_mainstack = PL_mainstack;
877		982
878	{
879	SV *sv = perl_get_sv("Coro::API", 1);
880
881	coroapi.ver = CORO_API_VERSION - 1;	983	coroapi.ver = CORO_API_VERSION;
882	coroapi.transfer = api_transfer;	984	coroapi.transfer = api_transfer;
883	coroapi.schedule = api_schedule;
884	coroapi.ready = api_ready;
885	coroapi.nready = &coro_nready;
886
887	GCoroAPI = &coroapi;
888	sv_setiv(sv, (IV)&coroapi);
889	SvREADONLY_on(sv);
890	}
891	}	985	}
892		986
893	Coro::State	987	Coro::State
894	_newprocess(args)	988	_newprocess(args)
895	SV * args	989	SV * args
…		…
898	Coro__State coro;	992	Coro__State coro;
899		993
900	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	994	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
901	croak ("Coro::State::_newprocess expects an arrayref");	995	croak ("Coro::State::_newprocess expects an arrayref");
902		996
903	New (0, coro, 1, struct coro);	997	Newz (0, coro, 1, struct coro);
904		998
905	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	999	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
906	coro->mainstack = 0; /* actual work is done inside transfer */	1000	/coro->mainstack = 0; //actual work is done inside transfer /
907	coro->stack = 0;	1001	/coro->stack = 0;/
		1002
		1003	/* same as JMPENV_BOOTSTRAP */
		1004	/* we might be able to recycle start_env, but safe is safe */
		1005	/Zero(&coro->start_env, 1, JMPENV);/
		1006	coro->start_env.je_ret = -1;
		1007	coro->start_env.je_mustcatch = TRUE;
908		1008
909	RETVAL = coro;	1009	RETVAL = coro;
910	OUTPUT:	1010	OUTPUT:
911	RETVAL	1011	RETVAL
912		1012
913	void	1013	void
914	transfer(prev, next, flags)	1014	transfer(prev, next, flags)
915	Coro::State_or_hashref prev	1015	SV *prev
916	Coro::State_or_hashref next	1016	SV *next
917	int flags	1017	int flags
918	PROTOTYPE: @	1018	PROTOTYPE: @
919	CODE:	1019	CODE:
920	PUTBACK;	1020	PUTBACK;
		1021	SV_CORO (next, "Coro::transfer");
		1022	SV_CORO (prev, "Coro::transfer");
921	transfer (aTHX_ prev, next, flags);	1023	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
922	SPAGAIN;	1024	SPAGAIN;
923		1025
924	void	1026	void
925	DESTROY(coro)	1027	DESTROY(coro)
926	Coro::State coro	1028	Coro::State coro
…		…
928		1030
929	if (coro->mainstack && coro->mainstack != main_mainstack)	1031	if (coro->mainstack && coro->mainstack != main_mainstack)
930	{	1032	{
931	struct coro temp;	1033	struct coro temp;
932		1034
		1035	PUTBACK;
933	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1036	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
934	LOAD(aTHX_ coro);	1037	LOAD (aTHX_ coro);
		1038	SPAGAIN;
935		1039
936	destroy_stacks (aTHX);	1040	destroy_stacks (aTHX);
937		1041
938	LOAD((&temp)); /* this will get rid of defsv etc.. */	1042	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1043	SPAGAIN;
939		1044
940	coro->mainstack = 0;	1045	coro->mainstack = 0;
941	}	1046	}
942		1047
943	deallocate_stack (coro);	1048	deallocate_stack (coro);
944		1049	SvREFCNT_dec (coro->args);
945	Safefree (coro);	1050	Safefree (coro);
946
947	void
948	flush()
949	CODE:
950	#ifdef MAY_FLUSH
951	flush_padlist_cache ();
952	#endif
953		1051
954	void	1052	void
955	_exit(code)	1053	_exit(code)
956	int code	1054	int code
957	PROTOTYPE: $	1055	PROTOTYPE: $
958	CODE:	1056	CODE:
959	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
960	_exit (code);	1057	_exit (code);
961	#else
962	signal (SIGTERM, SIG_DFL);
963	raise (SIGTERM);
964	exit (code);
965	#endif
966		1058
967	MODULE = Coro::State PACKAGE = Coro::Cont	1059	MODULE = Coro::State PACKAGE = Coro::Cont
968		1060
969	# this is slightly dirty (should expose a c-level api)	1061	# this is slightly dirty (should expose a c-level api)
970		1062
971	void	1063	void
972	yield(...)	1064	yield(...)
973	PROTOTYPE: @	1065	PROTOTYPE: @
974	CODE:	1066	CODE:
975	static SV *returnstk;	1067	SV *yieldstack;
976	SV *sv;	1068	SV *sv;
977	AV *defav = GvAV (PL_defgv);	1069	AV *defav = GvAV (PL_defgv);
978	struct coro prev, next;	1070	struct coro prev, next;
979		1071
980	if (!returnstk)	1072	yieldstack = *hv_fetch (
981	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1073	(HV *)SvRV (GvSV (coro_current)),
		1074	"yieldstack", sizeof ("yieldstack") - 1,
		1075	0
		1076	);
982		1077
983	/* set up @_ -- ugly */	1078	/* set up @_ -- ugly */
984	av_clear (defav);	1079	av_clear (defav);
985	av_fill (defav, items - 1);	1080	av_fill (defav, items - 1);
986	while (items--)	1081	while (items--)
987	av_store (defav, items, SvREFCNT_inc (ST(items)));	1082	av_store (defav, items, SvREFCNT_inc (ST(items)));
988		1083
989	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
990	sv = av_pop ((AV *)SvRV (returnstk));	1084	sv = av_pop ((AV *)SvRV (yieldstack));
991	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1085	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
992	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1086	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
993	SvREFCNT_dec (sv);	1087	SvREFCNT_dec (sv);
994		1088
995	transfer(aTHX_ prev, next, 0);	1089	transfer (aTHX_ prev, next, 0);
996		1090
997	MODULE = Coro::State PACKAGE = Coro	1091	MODULE = Coro::State PACKAGE = Coro
998		1092
999	# this is slightly dirty (should expose a c-level api)	1093	# this is slightly dirty (should expose a c-level api)
1000		1094
…		…
1013	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1107	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1014	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1108	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1015		1109
1016	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1110	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1017	coro_ready[i] = newAV ();	1111	coro_ready[i] = newAV ();
		1112
		1113	{
		1114	SV *sv = perl_get_sv("Coro::API", 1);
		1115
		1116	coroapi.schedule = api_schedule;
		1117	coroapi.cede = api_cede;
		1118	coroapi.ready = api_ready;
		1119	coroapi.nready = &coro_nready;
		1120	coroapi.current = coro_current;
		1121
		1122	GCoroAPI = &coroapi;
		1123	sv_setiv(sv, (IV)&coroapi);
		1124	SvREADONLY_on(sv);
		1125	}
1018	}	1126	}
		1127
		1128	#if !PERL_MICRO
1019		1129
1020	void	1130	void
1021	ready(self)	1131	ready(self)
1022	SV * self	1132	SV * self
		1133	PROTOTYPE: $
1023	CODE:	1134	CODE:
1024	api_ready (self);	1135	api_ready (self);
		1136
		1137	#endif
1025		1138
1026	int	1139	int
1027	nready(...)	1140	nready(...)
1028	PROTOTYPE:	1141	PROTOTYPE:
1029	CODE:	1142	CODE:
…		…
1032	RETVAL	1145	RETVAL
1033		1146
1034	void	1147	void
1035	schedule(...)	1148	schedule(...)
1036	PROTOTYPE:	1149	PROTOTYPE:
1037	ALIAS:
1038	cede = 1
1039	CODE:	1150	CODE:
1040	api_schedule (ix);	1151	api_schedule ();
1041		1152
		1153	void
		1154	cede(...)
		1155	PROTOTYPE:
		1156	CODE:
		1157	api_cede ();
		1158
		1159	# and these are hacks
		1160	SV *
		1161	_aio_get_state ()
		1162	CODE:
		1163	{
		1164	struct {
		1165	int errorno;
		1166	int laststype;
		1167	int laststatval;
		1168	Stat_t statcache;
		1169	} data;
		1170
		1171	data.errorno = errno;
		1172	data.laststype = PL_laststype;
		1173	data.laststatval = PL_laststatval;
		1174	data.statcache = PL_statcache;
		1175
		1176	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1177	}
		1178	OUTPUT:
		1179	RETVAL
		1180
		1181	void
		1182	_aio_set_state (char *data_)
		1183	PROTOTYPE: $
		1184	CODE:
		1185	{
		1186	struct {
		1187	int errorno;
		1188	int laststype;
		1189	int laststatval;
		1190	Stat_t statcache;
		1191	} data = (void )data_;
		1192
		1193	errno = data->errorno;
		1194	PL_laststype = data->laststype;
		1195	PL_laststatval = data->laststatval;
		1196	PL_statcache = data->statcache;
		1197	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.25 by root, Wed Aug 15 03:24:07 2001 UTC vs. Revision 1.75 by root, Thu Oct 26 06:50:20 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.25 by root, Wed Aug 15 03:24:07 2001 UTC vs.
Revision 1.75 by root, Thu Oct 26 06:50:20 2006 UTC