[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 1.62 by root, Tue Feb 22 19:51:58 2005 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"
6		31
7	#include <signal.h>	32	#include <signal.h>
8		33
9	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
10	# include <unistd.h>	35	# include <unistd.h>
11	# include <sys/mman.h>	36	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
15	# else	40	# else
16	# undef HAVE_MMAP	41	# undef HAVE_MMAP
17	# endif	42	# endif
18	# endif	43	# endif
19	#endif	44	#endif
20		45
21	#define MAY_FLUSH /* increases codesize */
22
23	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
25		48
26	/* 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
27	* to the current C stack pointer. Its property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
28	* and should be unique. */	51	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
30		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
31	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
32		57
33	#include "CoroAPI.h"	58	#include "CoroAPI.h"
34		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
35	static struct CoroAPI coroapi;	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 */
36		75
37	/* 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... */
38	typedef struct {	77	typedef struct {
39	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
40	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
45	void *sptr;	84	void *sptr;
46	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
47	} coro_stack;	86	} coro_stack;
48		87
49	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
50	/* the optional C context */	92	/* the optional C context */
51	coro_stack *stack;	93	coro_stack *stack;
52	void *cursp;	94	void *cursp;
53	int gencnt;	95	int gencnt;
54		96
…		…
66	AV *curstack;	108	AV *curstack;
67	AV *mainstack;	109	AV *mainstack;
68	SV **stack_sp;	110	SV **stack_sp;
69	OP *op;	111	OP *op;
70	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
71	SV **stack_base;	115	SV **stack_base;
72	SV **stack_max;	116	SV **stack_max;
73	SV **tmps_stack;	117	SV **tmps_stack;
74	I32 tmps_floor;	118	I32 tmps_floor;
75	I32 tmps_ix;	119	I32 tmps_ix;
…		…
94	};	138	};
95		139
96	typedef struct coro *Coro__State;	140	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	141	typedef struct coro *Coro__State_or_hashref;
98		142
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 */	143	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *	144	STATIC AV *
107	clone_padlist (AV *protopadlist)	145	clone_padlist (pTHX_ AV *protopadlist)
108	{	146	{
109	AV *av;	147	AV *av;
110	I32 ix;	148	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	149	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	150	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
136	AvFLAGS (av) = AVf_REIFY;	174	AvFLAGS (av) = AVf_REIFY;
137		175
138	for (ix = fpad; ix > 0; ix--)	176	for (ix = fpad; ix > 0; ix--)
139	{	177	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	178	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		179
141	if (namesv && namesv != &PL_sv_undef)	180	if (namesv && namesv != &PL_sv_undef)
142	{	181	{
143	char name = SvPVX (namesv); / XXX */	182	char name = SvPVX (namesv); / XXX */
		183
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	184	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
145	{ /* lexical from outside? */	185	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);	186	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	187	}
148	else	188	else
…		…
154	sv = (SV *) newAV ();	194	sv = (SV *) newAV ();
155	else if (*name == '%')	195	else if (*name == '%')
156	sv = (SV *) newHV ();	196	sv = (SV *) newHV ();
157	else	197	else
158	sv = NEWSV (0, 0);	198	sv = NEWSV (0, 0);
		199
		200	#ifdef SvPADBUSY
159	if (!SvPADBUSY (sv))	201	if (!SvPADBUSY (sv))
		202	#endif
160	SvPADMY_on (sv);	203	SvPADMY_on (sv);
		204
161	npad[ix] = sv;	205	npad[ix] = sv;
162	}	206	}
163	}	207	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	208	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
165	{	209	{
…		…
194	#endif	238	#endif
195		239
196	return newpadlist;	240	return newpadlist;
197	}	241	}
198		242
199	#ifdef MAY_FLUSH	243	STATIC void
200	STATIC AV *
201	free_padlist (AV *padlist)	244	free_padlist (pTHX_ AV *padlist)
202	{	245	{
203	/* may be during global destruction */	246	/* may be during global destruction */
204	if (SvREFCNT(padlist))	247	if (SvREFCNT (padlist))
205	{	248	{
206	I32 i = AvFILLp(padlist);	249	I32 i = AvFILLp (padlist);
207	while (i >= 0)	250	while (i >= 0)
208	{	251	{
209	SV **svp = av_fetch(padlist, i--, FALSE);	252	SV **svp = av_fetch (padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)	253	if (svp)
		254	{
		255	SV *sv;
		256	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
212	SvREFCNT_dec(sv);	257	SvREFCNT_dec (sv);
		258
		259	SvREFCNT_dec (*svp);
		260	}
213	}	261	}
214		262
215	SvREFCNT_dec((SV*)padlist);	263	SvREFCNT_dec ((SV*)padlist);
216	}	264	}
217	}	265	}
218	#endif	266
		267	STATIC int
		268	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		269	{
		270	AV *padlist;
		271	AV av = (AV )mg->mg_obj;
		272
		273	/* casting is fun. */
		274	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		275	free_padlist (aTHX_ padlist);
		276
		277	SvREFCNT_dec (av);
		278	}
		279
		280	#define PERL_MAGIC_coro PERL_MAGIC_ext
		281
		282	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
219		283
220	/* the next two functions merely cache the padlists */	284	/* the next two functions merely cache the padlists */
221	STATIC void	285	STATIC void
222	get_padlist (CV *cv)	286	get_padlist (pTHX_ CV *cv)
223	{	287	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	288	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
225		289
226	if (he && AvFILLp ((AV )he) >= 0)	290	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	291	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
228	else	292	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	293	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
230	}	294	}
231		295
232	STATIC void	296	STATIC void
233	put_padlist (CV *cv)	297	put_padlist (pTHX_ CV *cv)
234	{	298	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	299	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		300
237	if (SvTYPE (*he) != SVt_PVAV)	301	if (!mg)
238	{	302	{
239	SvREFCNT_dec (*he);	303	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		304	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		305	mg->mg_virtual = &vtbl_coro;
240	he = (SV )newAV ();	306	mg->mg_obj = (SV *)newAV ();
241	}	307	}
242		308
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	309	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	310	}
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		311
272	#define SB do {	312	#define SB do {
273	#define SE } while (0)	313	#define SE } while (0)
274		314
275	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	315	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	316	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		317
278	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	318	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
279		319
280	static void	320	static void
281	load_state(pTHX_ Coro__State c)	321	load_state(pTHX_ Coro__State c)
282	{	322	{
283	PL_dowarn = c->dowarn;	323	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	327	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	328	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	329	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	330	PL_op = c->op;
291	PL_curpad = c->curpad;	331	PL_curpad = c->curpad;
		332	PL_comppad = c->comppad;
		333	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	334	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	335	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	336	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	337	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	338	PL_tmps_ix = c->tmps_ix;
…		…
323	{	365	{
324	AV padlist = (AV )POPs;	366	AV padlist = (AV )POPs;
325		367
326	if (padlist)	368	if (padlist)
327	{	369	{
328	put_padlist (cv); /* mark this padlist as available */	370	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	371	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	372	}
334		373
335	++CvDEPTH(cv);	374	++CvDEPTH(cv);
336	}	375	}
337		376
…		…
355		394
356	PUSHs (Nullsv);	395	PUSHs (Nullsv);
357	/* this loop was inspired by pp_caller */	396	/* this loop was inspired by pp_caller */
358	for (;;)	397	for (;;)
359	{	398	{
360	do	399	while (cxix >= 0)
361	{	400	{
362	PERL_CONTEXT *cx = &ccstk[cxix--];	401	PERL_CONTEXT *cx = &ccstk[cxix--];
363		402
364	if (CxTYPE(cx) == CXt_SUB)	403	if (CxTYPE(cx) == CXt_SUB)
365	{	404	{
366	CV *cv = cx->blk_sub.cv;	405	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	406	if (CvDEPTH(cv))
368	{	407	{
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);	408	EXTEND (SP, CvDEPTH(cv)*2);
375		409
376	while (--CvDEPTH(cv))	410	while (--CvDEPTH(cv))
377	{	411	{
378	/* this tells the restore code to increment CvDEPTH */	412	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	415	}
382		416
383	PUSHs ((SV *)CvPADLIST(cv));	417	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	418	PUSHs ((SV *)cv);
385		419
386	get_padlist (cv); /* this is a monster */	420	get_padlist (aTHX_ cv); /* this is a monster */
387	}	421	}
388	}	422	}
		423	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	424	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	425	{
391	/* I never used formats, so how should I know how these are implemented? */	426	/* I never used formats, so how should I know how these are implemented? */
392	/* my bold guess is as a simple, plain sub... */	427	/* my bold guess is as a simple, plain sub... */
393	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	428	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
394	}	429	}
		430	#endif
395	}	431	}
396	while (cxix >= 0);
397		432
398	if (top_si->si_type == PERLSI_MAIN)	433	if (top_si->si_type == PERLSI_MAIN)
399	break;	434	break;
400		435
401	top_si = top_si->si_prev;	436	top_si = top_si->si_prev;
…		…
407	}	442	}
408		443
409	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	444	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
410	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	445	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
411	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	446	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		447
418	c->dowarn = PL_dowarn;	448	c->dowarn = PL_dowarn;
419	c->in_eval = PL_in_eval;	449	c->in_eval = PL_in_eval;
420		450
421	c->curstackinfo = PL_curstackinfo;	451	c->curstackinfo = PL_curstackinfo;
422	c->curstack = PL_curstack;	452	c->curstack = PL_curstack;
423	c->mainstack = PL_mainstack;	453	c->mainstack = PL_mainstack;
424	c->stack_sp = PL_stack_sp;	454	c->stack_sp = PL_stack_sp;
425	c->op = PL_op;	455	c->op = PL_op;
426	c->curpad = PL_curpad;	456	c->curpad = PL_curpad;
		457	c->comppad = PL_comppad;
		458	c->compcv = PL_compcv;
427	c->stack_base = PL_stack_base;	459	c->stack_base = PL_stack_base;
428	c->stack_max = PL_stack_max;	460	c->stack_max = PL_stack_max;
429	c->tmps_stack = PL_tmps_stack;	461	c->tmps_stack = PL_tmps_stack;
430	c->tmps_floor = PL_tmps_floor;	462	c->tmps_floor = PL_tmps_floor;
431	c->tmps_ix = PL_tmps_ix;	463	c->tmps_ix = PL_tmps_ix;
…		…
447	}	479	}
448		480
449	/*	481	/*
450	* allocate various perl stacks. This is an exact copy	482	* allocate various perl stacks. This is an exact copy
451	* of perl.c:init_stacks, except that it uses less memory	483	* of perl.c:init_stacks, except that it uses less memory
452	* on the assumption that coroutines do not usually need	484	* on the (sometimes correct) assumption that coroutines do
453	* a lot of stackspace.	485	* not usually need a lot of stackspace.
454	*/	486	*/
455	STATIC void	487	STATIC void
456	coro_init_stacks (pTHX)	488	coro_init_stacks (pTHX)
457	{	489	{
		490	LOCK;
		491
458	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	492	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
459	PL_curstackinfo->si_type = PERLSI_MAIN;	493	PL_curstackinfo->si_type = PERLSI_MAIN;
460	PL_curstack = PL_curstackinfo->si_stack;	494	PL_curstack = PL_curstackinfo->si_stack;
461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	495	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462		496
…		…
471		505
472	New(54,PL_markstack,16,I32);	506	New(54,PL_markstack,16,I32);
473	PL_markstack_ptr = PL_markstack;	507	PL_markstack_ptr = PL_markstack;
474	PL_markstack_max = PL_markstack + 16;	508	PL_markstack_max = PL_markstack + 16;
475		509
		510	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	511	SET_MARK_OFFSET;
		512	#endif
477		513
478	New(54,PL_scopestack,16,I32);	514	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	515	PL_scopestack_ix = 0;
480	PL_scopestack_max = 16;	516	PL_scopestack_max = 16;
481		517
…		…
484	PL_savestack_max = 96;	520	PL_savestack_max = 96;
485		521
486	New(54,PL_retstack,8,OP*);	522	New(54,PL_retstack,8,OP*);
487	PL_retstack_ix = 0;	523	PL_retstack_ix = 0;
488	PL_retstack_max = 8;	524	PL_retstack_max = 8;
		525
		526	UNLOCK;
489	}	527	}
490		528
491	/*	529	/*
492	* destroy the stacks, the callchain etc...	530	* destroy the stacks, the callchain etc...
493	* still there is a memleak of 128 bytes...
494	*/	531	*/
495	STATIC void	532	STATIC void
496	destroy_stacks(pTHX)	533	destroy_stacks(pTHX)
497	{	534	{
		535	if (!IN_DESTRUCT)
		536	{
498	/* is this ugly, I ask? */	537	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	538	LEAVE_SCOPE (0);
500	LEAVE;
501		539
502	/* sure it is, but more important: is it correct?? :/ */	540	/* 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;	541	FREETMPS;
		542
		543	/POPSTACK_TO (PL_mainstack);//D//use/
		544	}
505		545
506	while (PL_curstackinfo->si_next)	546	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	547	PL_curstackinfo = PL_curstackinfo->si_next;
508		548
509	while (PL_curstackinfo)	549	while (PL_curstackinfo)
510	{	550	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	551	PERL_SI *p = PL_curstackinfo->si_prev;
512		552
513	{	553	{ /D//remove/
514	dSP;	554	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	555	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	556	PUTBACK; /* possibly superfluous */
517	}	557	}
518		558
519	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */	559	if (!IN_DESTRUCT)
520	dounwind(-1);	560	{
521		561	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	562	SvREFCNT_dec (PL_curstackinfo->si_stack);
		563	}
		564
523	Safefree(PL_curstackinfo->si_cxstack);	565	Safefree (PL_curstackinfo->si_cxstack);
524	Safefree(PL_curstackinfo);	566	Safefree (PL_curstackinfo);
525	PL_curstackinfo = p;	567	PL_curstackinfo = p;
526	}	568	}
527		569
528	Safefree(PL_tmps_stack);	570	Safefree (PL_tmps_stack);
529	Safefree(PL_markstack);	571	Safefree (PL_markstack);
530	Safefree(PL_scopestack);	572	Safefree (PL_scopestack);
531	Safefree(PL_savestack);	573	Safefree (PL_savestack);
532	Safefree(PL_retstack);	574	Safefree (PL_retstack);
533	}	575	}
534		576
535	static void	577	static void
536	allocate_stack (Coro__State ctx, int alloc)	578	allocate_stack (Coro__State ctx, int alloc)
537	{	579	{
…		…
540	New (0, stack, 1, coro_stack);	582	New (0, stack, 1, coro_stack);
541		583
542	stack->refcnt = 1;	584	stack->refcnt = 1;
543	stack->usecnt = 1;	585	stack->usecnt = 1;
544	stack->gencnt = ctx->gencnt = 0;	586	stack->gencnt = ctx->gencnt = 0;
		587
545	if (alloc)	588	if (alloc)
546	{	589	{
547	#ifdef HAVE_MMAP	590	#if HAVE_MMAP
548	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	591	stack->ssize = 16384 * 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);	592	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
550	if (stack->sptr == (void *)-1)	593	if (stack->sptr == (void *)-1)
551	#endif	594	#endif
552	{	595	{
553	/FIXME//D//* reasonable stack size! */	596	/FIXME//D//* reasonable stack size! */
554	stack->ssize = -4096 * sizeof (long);	597	stack->ssize = - (8192 * sizeof (long));
555	New (0, stack->sptr, 4096, long);	598	New (0, stack->sptr, 8192, long);
556	}	599	}
557	}	600	}
558	else	601	else
559	stack->sptr = 0;	602	stack->sptr = 0;
560		603
…		…
574	{	617	{
575	#ifdef HAVE_MMAP	618	#ifdef HAVE_MMAP
576	if (stack->ssize > 0 && stack->sptr)	619	if (stack->ssize > 0 && stack->sptr)
577	munmap (stack->sptr, stack->ssize);	620	munmap (stack->sptr, stack->ssize);
578	else	621	else
579	#else	622	#endif
580	Safefree (stack->sptr);	623	Safefree (stack->sptr);
581	#endif	624
582	Safefree (stack);	625	Safefree (stack);
583	}	626	}
584	else if (ctx->gencnt == stack->gencnt)	627	else if (ctx->gencnt == stack->gencnt)
585	--stack->usecnt;	628	--stack->usecnt;
586	}	629	}
…		…
590	setup_coro (void *arg)	633	setup_coro (void *arg)
591	{	634	{
592	/*	635	/*
593	* emulate part of the perl startup here.	636	* emulate part of the perl startup here.
594	*/	637	*/
		638	dTHX;
595	dSP;	639	dSP;
596	Coro__State ctx = (Coro__State)arg;	640	Coro__State ctx = (Coro__State)arg;
597	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	641	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
598		642
599	coro_init_stacks (aTHX);	643	coro_init_stacks (aTHX);
600	/PL_curcop = 0;/	644	/PL_curcop = 0;/
601	/PL_in_eval = PL_in_eval;/ /* inherit */	645	/PL_in_eval = PL_in_eval;/ /* inherit */
602	SvREFCNT_dec (GvAV (PL_defgv));	646	SvREFCNT_dec (GvAV (PL_defgv));
603	GvAV (PL_defgv) = ctx->args;	647	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
604		648
605	SPAGAIN;	649	SPAGAIN;
606		650
607	if (ctx->stack)	651	if (ctx->stack)
608	{	652	{
…		…
635	* that doesn't matter, though, since it is only	679	* that doesn't matter, though, since it is only
636	* pp_nextstate and we never return...	680	* pp_nextstate and we never return...
637	* ah yes, and I don't care anyways ;)	681	* ah yes, and I don't care anyways ;)
638	*/	682	*/
639	PUTBACK;	683	PUTBACK;
640	PL_op = pp_entersub();	684	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
641	SPAGAIN;	685	SPAGAIN;
642		686
643	ENTER; /* necessary e.g. for dounwind */	687	ENTER; /* necessary e.g. for dounwind */
644	}	688	}
645	}	689	}
…		…
648	continue_coro (void *arg)	692	continue_coro (void *arg)
649	{	693	{
650	/*	694	/*
651	* this is a _very_ stripped down perl interpreter ;)	695	* this is a _very_ stripped down perl interpreter ;)
652	*/	696	*/
		697	dTHX;
653	Coro__State ctx = (Coro__State)arg;	698	Coro__State ctx = (Coro__State)arg;
		699	JMPENV coro_start_env;
654		700
655	/FIXME//* must set up top_env here */	701	PL_top_env = &ctx->start_env;
		702
656	ctx->cursp = 0;	703	ctx->cursp = 0;
657	PL_op = PL_op->op_next;	704	PL_op = PL_op->op_next;
658	CALLRUNOPS(aTHX);	705	CALLRUNOPS(aTHX);
659		706
660	abort ();	707	abort ();
661	}	708	}
662		709
663	STATIC void	710	STATIC void
664	transfer(pTHX_ struct coro prev, struct coro next, int flags)	711	transfer (pTHX_ struct coro prev, struct coro next, int flags)
665	{	712	{
666	dSP;
667	dSTACKLEVEL;	713	dSTACKLEVEL;
668		714
669	if (prev != next)	715	if (prev != next)
670	{	716	{
671	if (next->mainstack)	717	if (next->mainstack)
672	{	718	{
		719	LOCK;
673	SAVE (prev, flags);	720	SAVE (prev, flags);
674	LOAD (next);	721	LOAD (next);
		722	UNLOCK;
675		723
676	/* mark this state as in-use */	724	/* mark this state as in-use */
677	next->mainstack = 0;	725	next->mainstack = 0;
678	next->tmps_ix = -2;	726	next->tmps_ix = -2;
679		727
…		…
698	continue_coro, (void *)next,	746	continue_coro, (void *)next,
699	next->stack->sptr, labs (next->stack->ssize));	747	next->stack->sptr, labs (next->stack->ssize));
700	}	748	}
701		749
702	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	750	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		751	prev->cursp = stacklevel;
		752	/* don't add any code here */
703	}	753	}
704		754	else
		755	next->cursp = stacklevel;
705	}	756	}
706	else if (next->tmps_ix == -2)	757	else if (next->tmps_ix == -2)
707	croak ("tried to transfer to running coroutine");	758	croak ("tried to transfer to running coroutine");
708	else	759	else
709	{	760	{
		761	LOCK;
710	SAVE (prev, -1); /* first get rid of the old state */	762	SAVE (prev, -1); /* first get rid of the old state */
		763	UNLOCK;
711		764
712	if (flags & TRANSFER_SAVE_CCTXT)	765	if (flags & TRANSFER_SAVE_CCTXT)
713	{	766	{
714	if (!prev->stack)	767	if (!prev->stack)
715	allocate_stack (prev, 0);	768	allocate_stack (prev, 0);
716		769
717	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	770	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
718	{	771	{
		772	PL_top_env = &next->start_env;
		773
719	setup_coro (next);	774	setup_coro (next);
		775	next->cursp = stacklevel;
720		776
721	prev->stack->refcnt++;	777	prev->stack->refcnt++;
722	prev->stack->usecnt++;	778	prev->stack->usecnt++;
723	next->stack = prev->stack;	779	next->stack = prev->stack;
724	next->gencnt = prev->gencnt;	780	next->gencnt = prev->gencnt;
725	}	781	}
726	else	782	else
727	{	783	{
		784	assert (!next->stack);
728	allocate_stack (next, 1);	785	allocate_stack (next, 1);
729	coro_create (&(next->stack->cctx),	786	coro_create (&(next->stack->cctx),
730	setup_coro, (void *)next,	787	setup_coro, (void *)next,
731	next->stack->sptr, labs (next->stack->ssize));	788	next->stack->sptr, labs (next->stack->ssize));
732	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	789	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		790	prev->cursp = stacklevel;
		791	/* don't add any code here */
733	}	792	}
734	}	793	}
735	else	794	else
		795	{
736	setup_coro (next);	796	setup_coro (next);
		797	next->cursp = stacklevel;
		798	}
737	}	799	}
738	}	800	}
739		801
740	next->cursp = stacklevel;	802	LOCK;
741	}	803	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	{	804	{
748	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	805	SvREFCNT_dec (coro_mortal);
749		806	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	}	807	}
755		808	UNLOCK;
		809	}
		810
		811	#define SV_CORO(sv,func) \
		812	do { \
		813	if (SvROK (sv)) \
		814	sv = SvRV (sv); \
		815	\
		816	if (SvTYPE (sv) == SVt_PVHV) \
		817	{ \
		818	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		819	\
		820	if (!he) \
		821	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		822	\
		823	(sv) = SvRV (HeVAL(he)); \
		824	} \
		825	\
756	/* must also be changed inside Coro::Cont::yield */	826	/* must also be changed inside Coro::Cont::yield */ \
757	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	827	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);	828	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
761	}	829	\
		830	} while(0)
		831
		832	#define SvSTATE(sv) (struct coro *)SvIV (sv)
762		833
763	static void	834	static void
764	api_transfer(pTHX_ SV prev, SV next, int flags)	835	api_transfer(pTHX_ SV prev, SV next, int flags)
765	{	836	{
766	transfer(aTHX_ sv_to_coro (prev, "Coro::transfer", "prev"),	837	SV_CORO (prev, "Coro::transfer");
767	sv_to_coro (next, "Coro::transfer", "next"),	838	SV_CORO (next, "Coro::transfer");
768	flags);	839
		840	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
769	}	841	}
770		842
771	/ Coro ******************************************************************/	843	/ Coro ******************************************************************/
772		844
773	#define PRIO_MAX 3	845	#define PRIO_MAX 3
…		…
781	static GV coro_current, coro_idle;	853	static GV coro_current, coro_idle;
782	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	854	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
783	static int coro_nready;	855	static int coro_nready;
784		856
785	static void	857	static void
786	coro_enq (SV *sv)	858	coro_enq (pTHX_ SV *sv)
787	{	859	{
788	if (SvROK (sv))	860	if (SvTYPE (sv) == SVt_PVHV)
789	{	861	{
790	SV *hv = SvRV (sv);
791	if (SvTYPE (hv) == SVt_PVHV)
792	{
793	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	862	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
794	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	863	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
795		864
796	prio = prio > PRIO_MAX ? PRIO_MAX	865	prio = prio > PRIO_MAX ? PRIO_MAX
797	: prio < PRIO_MIN ? PRIO_MIN	866	: prio < PRIO_MIN ? PRIO_MIN
798	: prio;	867	: prio;
799		868
800	av_push (coro_ready [prio - PRIO_MIN], sv);	869	av_push (coro_ready [prio - PRIO_MIN], sv);
801	coro_nready++;	870	coro_nready++;
802		871
803	return;	872	return;
804	}
805	}	873	}
806		874
807	croak ("Coro::ready tried to enqueue something that is not a coroutine");	875	croak ("Coro::ready tried to enqueue something that is not a coroutine");
808	}	876	}
809		877
810	static SV *	878	static SV *
811	coro_deq (int min_prio)	879	coro_deq (pTHX_ int min_prio)
812	{	880	{
813	int prio = PRIO_MAX - PRIO_MIN;	881	int prio = PRIO_MAX - PRIO_MIN;
814		882
815	min_prio -= PRIO_MIN;	883	min_prio -= PRIO_MIN;
816	if (min_prio < 0)	884	if (min_prio < 0)
…		…
827	}	895	}
828		896
829	static void	897	static void
830	api_ready (SV *coro)	898	api_ready (SV *coro)
831	{	899	{
		900	dTHX;
		901
		902	if (SvROK (coro))
		903	coro = SvRV (coro);
		904
		905	LOCK;
832	coro_enq (SvREFCNT_inc (coro));	906	coro_enq (aTHX_ SvREFCNT_inc (coro));
		907	UNLOCK;
833	}	908	}
834		909
835	static void	910	static void
836	api_schedule (int cede)	911	api_schedule (void)
837	{	912	{
		913	dTHX;
		914
838	SV prev, next;	915	SV prev, next;
839		916
		917	LOCK;
		918
840	prev = GvSV (coro_current);	919	prev = SvRV (GvSV (coro_current));
841
842	if (cede)
843	coro_enq (SvREFCNT_inc (prev));
844
845	next = coro_deq (PRIO_MIN);	920	next = coro_deq (aTHX_ PRIO_MIN);
846		921
847	if (!next)	922	if (!next)
848	next = SvREFCNT_inc (GvSV (coro_idle));	923	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
849		924
850	GvSV (coro_current) = SvREFCNT_inc (next);	925	/* free this only after the transfer */
851	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),	926	coro_mortal = prev;
852	sv_to_coro (next, "Coro::schedule", "next coroutine"),	927	SV_CORO (prev, "Coro::schedule");
		928
		929	SvRV (GvSV (coro_current)) = next;
		930
		931	SV_CORO (next, "Coro::schedule");
		932
		933	UNLOCK;
		934
		935	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
853	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	936	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
854	SvREFCNT_dec (next);	937	}
855	SvREFCNT_dec (prev);	938
		939	static void
		940	api_cede (void)
		941	{
		942	dTHX;
		943
		944	LOCK;
		945	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		946	UNLOCK;
		947
		948	api_schedule ();
856	}	949	}
857		950
858	MODULE = Coro::State PACKAGE = Coro::State	951	MODULE = Coro::State PACKAGE = Coro::State
859		952
860	PROTOTYPES: ENABLE	953	PROTOTYPES: ENABLE
861		954
862	BOOT:	955	BOOT:
863	{ /* {} necessary for stoopid perl-5.6.x */	956	{ /* {} necessary for stoopid perl-5.6.x */
		957	#ifdef USE_ITHREADS
		958	MUTEX_INIT (&coro_mutex);
		959	#endif
		960
864	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	961	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
865	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	962	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
866	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	963	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
867		964
868	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	965	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
869	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	966	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
870	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	967	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
871	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	968	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
872		969
873	if (!padlist_cache)
874	padlist_cache = newHV ();
875
876	main_mainstack = PL_mainstack;	970	main_mainstack = PL_mainstack;
877		971
878	{
879	SV *sv = perl_get_sv("Coro::API", 1);
880
881	coroapi.ver = CORO_API_VERSION - 1;	972	coroapi.ver = CORO_API_VERSION;
882	coroapi.transfer = api_transfer;	973	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	}	974	}
892		975
893	Coro::State	976	Coro::State
894	_newprocess(args)	977	_newprocess(args)
895	SV * args	978	SV * args
…		…
898	Coro__State coro;	981	Coro__State coro;
899		982
900	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	983	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
901	croak ("Coro::State::_newprocess expects an arrayref");	984	croak ("Coro::State::_newprocess expects an arrayref");
902		985
903	New (0, coro, 1, struct coro);	986	Newz (0, coro, 1, struct coro);
904		987
905	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	988	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
906	coro->mainstack = 0; /* actual work is done inside transfer */	989	/coro->mainstack = 0; //actual work is done inside transfer /
907	coro->stack = 0;	990	/coro->stack = 0;/
		991
		992	/* same as JMPENV_BOOTSTRAP */
		993	/* we might be able to recycle start_env, but safe is safe */
		994	/Zero(&coro->start_env, 1, JMPENV);/
		995	coro->start_env.je_ret = -1;
		996	coro->start_env.je_mustcatch = TRUE;
908		997
909	RETVAL = coro;	998	RETVAL = coro;
910	OUTPUT:	999	OUTPUT:
911	RETVAL	1000	RETVAL
912		1001
913	void	1002	void
914	transfer(prev, next, flags)	1003	transfer(prev, next, flags)
915	Coro::State_or_hashref prev	1004	SV *prev
916	Coro::State_or_hashref next	1005	SV *next
917	int flags	1006	int flags
918	PROTOTYPE: @	1007	PROTOTYPE: @
919	CODE:	1008	CODE:
920	PUTBACK;	1009	PUTBACK;
		1010	SV_CORO (next, "Coro::transfer");
		1011	SV_CORO (prev, "Coro::transfer");
921	transfer (aTHX_ prev, next, flags);	1012	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
922	SPAGAIN;	1013	SPAGAIN;
923		1014
924	void	1015	void
925	DESTROY(coro)	1016	DESTROY(coro)
926	Coro::State coro	1017	Coro::State coro
…		…
928		1019
929	if (coro->mainstack && coro->mainstack != main_mainstack)	1020	if (coro->mainstack && coro->mainstack != main_mainstack)
930	{	1021	{
931	struct coro temp;	1022	struct coro temp;
932		1023
		1024	PUTBACK;
933	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1025	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
934	LOAD(aTHX_ coro);	1026	LOAD (aTHX_ coro);
		1027	SPAGAIN;
935		1028
936	destroy_stacks (aTHX);	1029	destroy_stacks (aTHX);
937		1030
938	LOAD((&temp)); /* this will get rid of defsv etc.. */	1031	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1032	SPAGAIN;
939		1033
940	coro->mainstack = 0;	1034	coro->mainstack = 0;
941	}	1035	}
942		1036
943	deallocate_stack (coro);	1037	deallocate_stack (coro);
944		1038	SvREFCNT_dec (coro->args);
945	Safefree (coro);	1039	Safefree (coro);
946
947	void
948	flush()
949	CODE:
950	#ifdef MAY_FLUSH
951	flush_padlist_cache ();
952	#endif
953		1040
954	void	1041	void
955	_exit(code)	1042	_exit(code)
956	int code	1043	int code
957	PROTOTYPE: $	1044	PROTOTYPE: $
958	CODE:	1045	CODE:
959	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
960	_exit (code);	1046	_exit (code);
961	#else
962	signal (SIGTERM, SIG_DFL);
963	raise (SIGTERM);
964	exit (code);
965	#endif
966		1047
967	MODULE = Coro::State PACKAGE = Coro::Cont	1048	MODULE = Coro::State PACKAGE = Coro::Cont
968		1049
969	# this is slightly dirty (should expose a c-level api)	1050	# this is slightly dirty (should expose a c-level api)
970		1051
…		…
976	SV *sv;	1057	SV *sv;
977	AV *defav = GvAV (PL_defgv);	1058	AV *defav = GvAV (PL_defgv);
978	struct coro prev, next;	1059	struct coro prev, next;
979		1060
980	if (!returnstk)	1061	if (!returnstk)
981	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1062	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
982		1063
983	/* set up @_ -- ugly */	1064	/* set up @_ -- ugly */
984	av_clear (defav);	1065	av_clear (defav);
985	av_fill (defav, items - 1);	1066	av_fill (defav, items - 1);
986	while (items--)	1067	while (items--)
987	av_store (defav, items, SvREFCNT_inc (ST(items)));	1068	av_store (defav, items, SvREFCNT_inc (ST(items)));
988		1069
989	mg_get (returnstk); /* isn't documentation wrong for mg_get? */	1070	SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
990	sv = av_pop ((AV *)SvRV (returnstk));	1071	sv = av_pop ((AV *)SvRV (returnstk));
991	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1072	prev = (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)));	1073	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
993	SvREFCNT_dec (sv);	1074	SvREFCNT_dec (sv);
994		1075
995	transfer(aTHX_ prev, next, 0);	1076	transfer (aTHX_ prev, next, 0);
996		1077
997	MODULE = Coro::State PACKAGE = Coro	1078	MODULE = Coro::State PACKAGE = Coro
998		1079
999	# this is slightly dirty (should expose a c-level api)	1080	# this is slightly dirty (should expose a c-level api)
1000		1081
…		…
1013	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1094	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1014	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1095	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1015		1096
1016	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1097	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1017	coro_ready[i] = newAV ();	1098	coro_ready[i] = newAV ();
		1099
		1100	{
		1101	SV *sv = perl_get_sv("Coro::API", 1);
		1102
		1103	coroapi.schedule = api_schedule;
		1104	coroapi.cede = api_cede;
		1105	coroapi.ready = api_ready;
		1106	coroapi.nready = &coro_nready;
		1107	coroapi.current = coro_current;
		1108
		1109	GCoroAPI = &coroapi;
		1110	sv_setiv(sv, (IV)&coroapi);
		1111	SvREADONLY_on(sv);
		1112	}
1018	}	1113	}
		1114
		1115	#if !PERL_MICRO
1019		1116
1020	void	1117	void
1021	ready(self)	1118	ready(self)
1022	SV * self	1119	SV * self
		1120	PROTOTYPE: $
1023	CODE:	1121	CODE:
1024	api_ready (self);	1122	api_ready (self);
		1123
		1124	#endif
1025		1125
1026	int	1126	int
1027	nready(...)	1127	nready(...)
1028	PROTOTYPE:	1128	PROTOTYPE:
1029	CODE:	1129	CODE:
…		…
1032	RETVAL	1132	RETVAL
1033		1133
1034	void	1134	void
1035	schedule(...)	1135	schedule(...)
1036	PROTOTYPE:	1136	PROTOTYPE:
1037	ALIAS:
1038	cede = 1
1039	CODE:	1137	CODE:
1040	api_schedule (ix);	1138	api_schedule ();
1041		1139
		1140	void
		1141	cede(...)
		1142	PROTOTYPE:
		1143	CODE:
		1144	api_cede ();
		1145

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.25 by root, Wed Aug 15 03:24:07 2001 UTC vs. Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.25 by root, Wed Aug 15 03:24:07 2001 UTC vs.
Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC