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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC vs.
Revision 1.66 by root, Mon Dec 12 19:43:41 2005 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"
		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
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;
…		…
84	I32 savestack_ix;	128	I32 savestack_ix;
85	I32 savestack_max;	129	I32 savestack_max;
86	OP **retstack;	130	OP **retstack;
87	I32 retstack_ix;	131	I32 retstack_ix;
88	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
89	COP *curcop;	134	COP *curcop;
90	JMPENV *top_env;	135	JMPENV *top_env;
91		136
92	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
93	AV *args;	138	AV *args;
94	};	139	};
95		140
96	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
98		143
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 */	144	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *	145	STATIC AV *
107	clone_padlist (AV *protopadlist)	146	clone_padlist (pTHX_ AV *protopadlist)
108	{	147	{
109	AV *av;	148	AV *av;
110	I32 ix;	149	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
136	AvFLAGS (av) = AVf_REIFY;	175	AvFLAGS (av) = AVf_REIFY;
137		176
138	for (ix = fpad; ix > 0; ix--)	177	for (ix = fpad; ix > 0; ix--)
139	{	178	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		180
141	if (namesv && namesv != &PL_sv_undef)	181	if (namesv && namesv != &PL_sv_undef)
142	{	182	{
143	char name = SvPVX (namesv); / XXX */	183	char name = SvPVX (namesv); / XXX */
		184
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
145	{ /* lexical from outside? */	186	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);	187	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	188	}
148	else	189	else
…		…
154	sv = (SV *) newAV ();	195	sv = (SV *) newAV ();
155	else if (*name == '%')	196	else if (*name == '%')
156	sv = (SV *) newHV ();	197	sv = (SV *) newHV ();
157	else	198	else
158	sv = NEWSV (0, 0);	199	sv = NEWSV (0, 0);
		200
		201	#ifdef SvPADBUSY
159	if (!SvPADBUSY (sv))	202	if (!SvPADBUSY (sv))
		203	#endif
160	SvPADMY_on (sv);	204	SvPADMY_on (sv);
		205
161	npad[ix] = sv;	206	npad[ix] = sv;
162	}	207	}
163	}	208	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
165	{	210	{
…		…
194	#endif	239	#endif
195		240
196	return newpadlist;	241	return newpadlist;
197	}	242	}
198		243
199	#ifdef MAY_FLUSH	244	STATIC void
200	STATIC AV *
201	free_padlist (AV *padlist)	245	free_padlist (pTHX_ AV *padlist)
202	{	246	{
203	/* may be during global destruction */	247	/* may be during global destruction */
204	if (SvREFCNT(padlist))	248	if (SvREFCNT (padlist))
205	{	249	{
206	I32 i = AvFILLp(padlist);	250	I32 i = AvFILLp (padlist);
207	while (i >= 0)	251	while (i >= 0)
208	{	252	{
209	SV **svp = av_fetch(padlist, i--, FALSE);	253	SV **svp = av_fetch (padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)	254	if (svp)
		255	{
		256	SV *sv;
		257	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
212	SvREFCNT_dec(sv);	258	SvREFCNT_dec (sv);
		259
		260	SvREFCNT_dec (*svp);
		261	}
213	}	262	}
214		263
215	SvREFCNT_dec((SV*)padlist);	264	SvREFCNT_dec ((SV*)padlist);
216	}	265	}
217	}	266	}
218	#endif	267
		268	STATIC int
		269	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		270	{
		271	AV *padlist;
		272	AV av = (AV )mg->mg_obj;
		273
		274	/* casting is fun. */
		275	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		276	free_padlist (aTHX_ padlist);
		277
		278	SvREFCNT_dec (av);
		279	}
		280
		281	#define PERL_MAGIC_coro PERL_MAGIC_ext
		282
		283	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
219		284
220	/* the next two functions merely cache the padlists */	285	/* the next two functions merely cache the padlists */
221	STATIC void	286	STATIC void
222	get_padlist (CV *cv)	287	get_padlist (pTHX_ CV *cv)
223	{	288	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	289	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
225		290
226	if (he && AvFILLp ((AV )he) >= 0)	291	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	292	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
228	else	293	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	294	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
230	}	295	}
231		296
232	STATIC void	297	STATIC void
233	put_padlist (CV *cv)	298	put_padlist (pTHX_ CV *cv)
234	{	299	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	300	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		301
237	if (SvTYPE (*he) != SVt_PVAV)	302	if (!mg)
238	{	303	{
239	SvREFCNT_dec (*he);	304	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		305	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		306	mg->mg_virtual = &vtbl_coro;
240	he = (SV )newAV ();	307	mg->mg_obj = (SV *)newAV ();
241	}	308	}
242		309
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	310	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	311	}
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		312
272	#define SB do {	313	#define SB do {
273	#define SE } while (0)	314	#define SE } while (0)
274		315
275	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	316	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	317	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		318
278	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	319	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
279		320
280	static void	321	static void
281	load_state(pTHX_ Coro__State c)	322	load_state(pTHX_ Coro__State c)
282	{	323	{
283	PL_dowarn = c->dowarn;	324	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	328	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	329	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	330	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	331	PL_op = c->op;
291	PL_curpad = c->curpad;	332	PL_curpad = c->curpad;
		333	PL_comppad = c->comppad;
		334	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	335	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	336	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	337	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	338	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	339	PL_tmps_ix = c->tmps_ix;
…		…
305	PL_savestack_ix = c->savestack_ix;	348	PL_savestack_ix = c->savestack_ix;
306	PL_savestack_max = c->savestack_max;	349	PL_savestack_max = c->savestack_max;
307	PL_retstack = c->retstack;	350	PL_retstack = c->retstack;
308	PL_retstack_ix = c->retstack_ix;	351	PL_retstack_ix = c->retstack_ix;
309	PL_retstack_max = c->retstack_max;	352	PL_retstack_max = c->retstack_max;
		353	PL_curpm = c->curpm;
310	PL_curcop = c->curcop;	354	PL_curcop = c->curcop;
311	PL_top_env = c->top_env;	355	PL_top_env = c->top_env;
312		356
313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	357	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	358	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
323	{	367	{
324	AV padlist = (AV )POPs;	368	AV padlist = (AV )POPs;
325		369
326	if (padlist)	370	if (padlist)
327	{	371	{
328	put_padlist (cv); /* mark this padlist as available */	372	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	373	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	374	}
334		375
335	++CvDEPTH(cv);	376	++CvDEPTH(cv);
336	}	377	}
337		378
…		…
355		396
356	PUSHs (Nullsv);	397	PUSHs (Nullsv);
357	/* this loop was inspired by pp_caller */	398	/* this loop was inspired by pp_caller */
358	for (;;)	399	for (;;)
359	{	400	{
360	do	401	while (cxix >= 0)
361	{	402	{
362	PERL_CONTEXT *cx = &ccstk[cxix--];	403	PERL_CONTEXT *cx = &ccstk[cxix--];
363		404
364	if (CxTYPE(cx) == CXt_SUB)	405	if (CxTYPE(cx) == CXt_SUB)
365	{	406	{
366	CV *cv = cx->blk_sub.cv;	407	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	408	if (CvDEPTH(cv))
368	{	409	{
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);	410	EXTEND (SP, CvDEPTH(cv)*2);
375		411
376	while (--CvDEPTH(cv))	412	while (--CvDEPTH(cv))
377	{	413	{
378	/* this tells the restore code to increment CvDEPTH */	414	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	417	}
382		418
383	PUSHs ((SV *)CvPADLIST(cv));	419	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	420	PUSHs ((SV *)cv);
385		421
386	get_padlist (cv); /* this is a monster */	422	get_padlist (aTHX_ cv); /* this is a monster */
387	}	423	}
388	}	424	}
		425	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	426	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	427	{
391	/* I never used formats, so how should I know how these are implemented? */	428	/* I never used formats, so how should I know how these are implemented? */
392	/* my bold guess is as a simple, plain sub... */	429	/* my bold guess is as a simple, plain sub... */
393	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	430	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
394	}	431	}
		432	#endif
395	}	433	}
396	while (cxix >= 0);
397		434
398	if (top_si->si_type == PERLSI_MAIN)	435	if (top_si->si_type == PERLSI_MAIN)
399	break;	436	break;
400		437
401	top_si = top_si->si_prev;	438	top_si = top_si->si_prev;
…		…
407	}	444	}
408		445
409	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	446	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
410	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	447	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
411	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	448	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		449
418	c->dowarn = PL_dowarn;	450	c->dowarn = PL_dowarn;
419	c->in_eval = PL_in_eval;	451	c->in_eval = PL_in_eval;
420		452
421	c->curstackinfo = PL_curstackinfo;	453	c->curstackinfo = PL_curstackinfo;
422	c->curstack = PL_curstack;	454	c->curstack = PL_curstack;
423	c->mainstack = PL_mainstack;	455	c->mainstack = PL_mainstack;
424	c->stack_sp = PL_stack_sp;	456	c->stack_sp = PL_stack_sp;
425	c->op = PL_op;	457	c->op = PL_op;
426	c->curpad = PL_curpad;	458	c->curpad = PL_curpad;
		459	c->comppad = PL_comppad;
		460	c->compcv = PL_compcv;
427	c->stack_base = PL_stack_base;	461	c->stack_base = PL_stack_base;
428	c->stack_max = PL_stack_max;	462	c->stack_max = PL_stack_max;
429	c->tmps_stack = PL_tmps_stack;	463	c->tmps_stack = PL_tmps_stack;
430	c->tmps_floor = PL_tmps_floor;	464	c->tmps_floor = PL_tmps_floor;
431	c->tmps_ix = PL_tmps_ix;	465	c->tmps_ix = PL_tmps_ix;
…		…
440	c->savestack_ix = PL_savestack_ix;	474	c->savestack_ix = PL_savestack_ix;
441	c->savestack_max = PL_savestack_max;	475	c->savestack_max = PL_savestack_max;
442	c->retstack = PL_retstack;	476	c->retstack = PL_retstack;
443	c->retstack_ix = PL_retstack_ix;	477	c->retstack_ix = PL_retstack_ix;
444	c->retstack_max = PL_retstack_max;	478	c->retstack_max = PL_retstack_max;
		479	c->curpm = PL_curpm;
445	c->curcop = PL_curcop;	480	c->curcop = PL_curcop;
446	c->top_env = PL_top_env;	481	c->top_env = PL_top_env;
447	}	482	}
448		483
449	/*	484	/*
450	* allocate various perl stacks. This is an exact copy	485	* allocate various perl stacks. This is an exact copy
451	* of perl.c:init_stacks, except that it uses less memory	486	* of perl.c:init_stacks, except that it uses less memory
452	* on the assumption that coroutines do not usually need	487	* on the (sometimes correct) assumption that coroutines do
453	* a lot of stackspace.	488	* not usually need a lot of stackspace.
454	*/	489	*/
455	STATIC void	490	STATIC void
456	coro_init_stacks (pTHX)	491	coro_init_stacks (pTHX)
457	{	492	{
		493	LOCK;
		494
458	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	495	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
459	PL_curstackinfo->si_type = PERLSI_MAIN;	496	PL_curstackinfo->si_type = PERLSI_MAIN;
460	PL_curstack = PL_curstackinfo->si_stack;	497	PL_curstack = PL_curstackinfo->si_stack;
461	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	498	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462		499
…		…
471		508
472	New(54,PL_markstack,16,I32);	509	New(54,PL_markstack,16,I32);
473	PL_markstack_ptr = PL_markstack;	510	PL_markstack_ptr = PL_markstack;
474	PL_markstack_max = PL_markstack + 16;	511	PL_markstack_max = PL_markstack + 16;
475		512
		513	#ifdef SET_MARK_OFFSET
476	SET_MARK_OFFSET;	514	SET_MARK_OFFSET;
		515	#endif
477		516
478	New(54,PL_scopestack,16,I32);	517	New(54,PL_scopestack,16,I32);
479	PL_scopestack_ix = 0;	518	PL_scopestack_ix = 0;
480	PL_scopestack_max = 16;	519	PL_scopestack_max = 16;
481		520
…		…
484	PL_savestack_max = 96;	523	PL_savestack_max = 96;
485		524
486	New(54,PL_retstack,8,OP*);	525	New(54,PL_retstack,8,OP*);
487	PL_retstack_ix = 0;	526	PL_retstack_ix = 0;
488	PL_retstack_max = 8;	527	PL_retstack_max = 8;
		528
		529	UNLOCK;
489	}	530	}
490		531
491	/*	532	/*
492	* destroy the stacks, the callchain etc...	533	* destroy the stacks, the callchain etc...
493	* still there is a memleak of 128 bytes...
494	*/	534	*/
495	STATIC void	535	STATIC void
496	destroy_stacks(pTHX)	536	destroy_stacks(pTHX)
497	{	537	{
		538	if (!IN_DESTRUCT)
		539	{
498	/* is this ugly, I ask? */	540	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	541	LEAVE_SCOPE (0);
500	LEAVE;
501		542
502	/* sure it is, but more important: is it correct?? :/ */	543	/* 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;	544	FREETMPS;
		545
		546	/POPSTACK_TO (PL_mainstack);//D//use/
		547	}
505		548
506	while (PL_curstackinfo->si_next)	549	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	550	PL_curstackinfo = PL_curstackinfo->si_next;
508		551
509	while (PL_curstackinfo)	552	while (PL_curstackinfo)
510	{	553	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	554	PERL_SI *p = PL_curstackinfo->si_prev;
512		555
513	{	556	{ /D//remove/
514	dSP;	557	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	558	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	559	PUTBACK; /* possibly superfluous */
517	}	560	}
518		561
519	if (PL_main_cv != Nullcv) /* don't during destruction. hack? */	562	if (!IN_DESTRUCT)
520	dounwind(-1);	563	{
521		564	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	565	SvREFCNT_dec (PL_curstackinfo->si_stack);
		566	}
		567
523	Safefree(PL_curstackinfo->si_cxstack);	568	Safefree (PL_curstackinfo->si_cxstack);
524	Safefree(PL_curstackinfo);	569	Safefree (PL_curstackinfo);
525	PL_curstackinfo = p;	570	PL_curstackinfo = p;
526	}	571	}
527		572
528	Safefree(PL_tmps_stack);	573	Safefree (PL_tmps_stack);
529	Safefree(PL_markstack);	574	Safefree (PL_markstack);
530	Safefree(PL_scopestack);	575	Safefree (PL_scopestack);
531	Safefree(PL_savestack);	576	Safefree (PL_savestack);
532	Safefree(PL_retstack);	577	Safefree (PL_retstack);
533	}	578	}
534		579
535	static void	580	static void
536	allocate_stack (Coro__State ctx, int alloc)	581	allocate_stack (Coro__State ctx, int alloc)
537	{	582	{
…		…
540	New (0, stack, 1, coro_stack);	585	New (0, stack, 1, coro_stack);
541		586
542	stack->refcnt = 1;	587	stack->refcnt = 1;
543	stack->usecnt = 1;	588	stack->usecnt = 1;
544	stack->gencnt = ctx->gencnt = 0;	589	stack->gencnt = ctx->gencnt = 0;
		590
545	if (alloc)	591	if (alloc)
546	{	592	{
547	#ifdef HAVE_MMAP	593	#if HAVE_MMAP
548	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	594	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);	595	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
550	if (stack->sptr == (void *)-1)	596	if (stack->sptr == (void *)-1)
551	#endif	597	#endif
552	{	598	{
553	/FIXME//D//* reasonable stack size! */	599	/FIXME//D//* reasonable stack size! */
554	stack->ssize = -4096 * sizeof (long);	600	stack->ssize = - (8192 * sizeof (long));
555	New (0, stack->sptr, 4096, long);	601	New (0, stack->sptr, 8192, long);
556	}	602	}
557	}	603	}
558	else	604	else
559	stack->sptr = 0;	605	stack->sptr = 0;
560		606
…		…
574	{	620	{
575	#ifdef HAVE_MMAP	621	#ifdef HAVE_MMAP
576	if (stack->ssize > 0 && stack->sptr)	622	if (stack->ssize > 0 && stack->sptr)
577	munmap (stack->sptr, stack->ssize);	623	munmap (stack->sptr, stack->ssize);
578	else	624	else
579	#else	625	#endif
580	Safefree (stack->sptr);	626	Safefree (stack->sptr);
581	#endif	627
582	Safefree (stack);	628	Safefree (stack);
583	}	629	}
584	else if (ctx->gencnt == stack->gencnt)	630	else if (ctx->gencnt == stack->gencnt)
585	--stack->usecnt;	631	--stack->usecnt;
586	}	632	}
…		…
590	setup_coro (void *arg)	636	setup_coro (void *arg)
591	{	637	{
592	/*	638	/*
593	* emulate part of the perl startup here.	639	* emulate part of the perl startup here.
594	*/	640	*/
		641	dTHX;
595	dSP;	642	dSP;
596	Coro__State ctx = (Coro__State)arg;	643	Coro__State ctx = (Coro__State)arg;
597	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	644	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
598		645
599	coro_init_stacks (aTHX);	646	coro_init_stacks (aTHX);
600	/PL_curcop = 0;/	647	/PL_curcop = 0;/
601	/PL_in_eval = PL_in_eval;/ /* inherit */	648	/PL_in_eval = PL_in_eval;/ /* inherit */
602	SvREFCNT_dec (GvAV (PL_defgv));	649	SvREFCNT_dec (GvAV (PL_defgv));
603	GvAV (PL_defgv) = ctx->args;	650	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
604		651
605	SPAGAIN;	652	SPAGAIN;
606		653
607	if (ctx->stack)	654	if (ctx->stack)
608	{	655	{
…		…
635	* that doesn't matter, though, since it is only	682	* that doesn't matter, though, since it is only
636	* pp_nextstate and we never return...	683	* pp_nextstate and we never return...
637	* ah yes, and I don't care anyways ;)	684	* ah yes, and I don't care anyways ;)
638	*/	685	*/
639	PUTBACK;	686	PUTBACK;
640	PL_op = pp_entersub();	687	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
641	SPAGAIN;	688	SPAGAIN;
642		689
643	ENTER; /* necessary e.g. for dounwind */	690	ENTER; /* necessary e.g. for dounwind */
644	}	691	}
645	}	692	}
…		…
648	continue_coro (void *arg)	695	continue_coro (void *arg)
649	{	696	{
650	/*	697	/*
651	* this is a _very_ stripped down perl interpreter ;)	698	* this is a _very_ stripped down perl interpreter ;)
652	*/	699	*/
		700	dTHX;
653	Coro__State ctx = (Coro__State)arg;	701	Coro__State ctx = (Coro__State)arg;
		702	JMPENV coro_start_env;
654		703
655	/FIXME//* must set up top_env here */	704	PL_top_env = &ctx->start_env;
		705
656	ctx->cursp = 0;	706	ctx->cursp = 0;
657	PL_op = PL_op->op_next;	707	PL_op = PL_op->op_next;
658	CALLRUNOPS(aTHX);	708	CALLRUNOPS(aTHX);
659		709
660	abort ();	710	abort ();
661	}	711	}
662		712
663	STATIC void	713	STATIC void
664	transfer(pTHX_ struct coro prev, struct coro next, int flags)	714	transfer (pTHX_ struct coro prev, struct coro next, int flags)
665	{	715	{
666	dSP;
667	dSTACKLEVEL;	716	dSTACKLEVEL;
668		717
669	if (prev != next)	718	if (prev != next)
670	{	719	{
671	if (next->mainstack)	720	if (next->mainstack)
672	{	721	{
		722	LOCK;
673	SAVE (prev, flags);	723	SAVE (prev, flags);
674	LOAD (next);	724	LOAD (next);
		725	UNLOCK;
675		726
676	/* mark this state as in-use */	727	/* mark this state as in-use */
677	next->mainstack = 0;	728	next->mainstack = 0;
678	next->tmps_ix = -2;	729	next->tmps_ix = -2;
679		730
…		…
698	continue_coro, (void *)next,	749	continue_coro, (void *)next,
699	next->stack->sptr, labs (next->stack->ssize));	750	next->stack->sptr, labs (next->stack->ssize));
700	}	751	}
701		752
702	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	753	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		754	prev->cursp = stacklevel;
		755	/* don't add any code here */
703	}	756	}
704		757	else
		758	next->cursp = stacklevel;
705	}	759	}
706	else if (next->tmps_ix == -2)	760	else if (next->tmps_ix == -2)
707	croak ("tried to transfer to running coroutine");	761	croak ("tried to transfer to running coroutine");
708	else	762	else
709	{	763	{
		764	LOCK;
710	SAVE (prev, -1); /* first get rid of the old state */	765	SAVE (prev, -1); /* first get rid of the old state */
		766	UNLOCK;
711		767
712	if (flags & TRANSFER_SAVE_CCTXT)	768	if (flags & TRANSFER_SAVE_CCTXT)
713	{	769	{
714	if (!prev->stack)	770	if (!prev->stack)
715	allocate_stack (prev, 0);	771	allocate_stack (prev, 0);
716		772
717	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	773	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
718	{	774	{
		775	PL_top_env = &next->start_env;
		776
719	setup_coro (next);	777	setup_coro (next);
		778	next->cursp = stacklevel;
720		779
721	prev->stack->refcnt++;	780	prev->stack->refcnt++;
722	prev->stack->usecnt++;	781	prev->stack->usecnt++;
723	next->stack = prev->stack;	782	next->stack = prev->stack;
724	next->gencnt = prev->gencnt;	783	next->gencnt = prev->gencnt;
725	}	784	}
726	else	785	else
727	{	786	{
		787	assert (!next->stack);
728	allocate_stack (next, 1);	788	allocate_stack (next, 1);
729	coro_create (&(next->stack->cctx),	789	coro_create (&(next->stack->cctx),
730	setup_coro, (void *)next,	790	setup_coro, (void *)next,
731	next->stack->sptr, labs (next->stack->ssize));	791	next->stack->sptr, labs (next->stack->ssize));
732	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	792	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		793	prev->cursp = stacklevel;
		794	/* don't add any code here */
733	}	795	}
734	}	796	}
735	else	797	else
		798	{
736	setup_coro (next);	799	setup_coro (next);
		800	next->cursp = stacklevel;
		801	}
737	}	802	}
738	}	803	}
739		804
740	next->cursp = stacklevel;	805	LOCK;
741	}	806	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	{	807	{
748	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	808	SvREFCNT_dec (coro_mortal);
749		809	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	}	810	}
755		811	UNLOCK;
		812	}
		813
		814	#define SV_CORO(sv,func) \
		815	do { \
		816	if (SvROK (sv)) \
		817	sv = SvRV (sv); \
		818	\
		819	if (SvTYPE (sv) == SVt_PVHV) \
		820	{ \
		821	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		822	\
		823	if (!he) \
		824	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		825	\
		826	(sv) = SvRV (HeVAL(he)); \
		827	} \
		828	\
756	/* must also be changed inside Coro::Cont::yield */	829	/* must also be changed inside Coro::Cont::yield */ \
757	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	830	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);	831	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
761	}	832	\
		833	} while(0)
		834
		835	#define SvSTATE(sv) (struct coro *)SvIV (sv)
762		836
763	static void	837	static void
764	api_transfer(pTHX_ SV prev, SV next, int flags)	838	api_transfer(pTHX_ SV prev, SV next, int flags)
765	{	839	{
766	transfer(aTHX_ sv_to_coro (prev, "Coro::transfer", "prev"),	840	SV_CORO (prev, "Coro::transfer");
767	sv_to_coro (next, "Coro::transfer", "next"),	841	SV_CORO (next, "Coro::transfer");
768	flags);	842
		843	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
769	}	844	}
770		845
771	/ Coro ******************************************************************/	846	/ Coro ******************************************************************/
772		847
773	#define PRIO_MAX 3	848	#define PRIO_MAX 3
…		…
778	#define PRIO_MIN -4	853	#define PRIO_MIN -4
779		854
780	/* for Coro.pm */	855	/* for Coro.pm */
781	static GV coro_current, coro_idle;	856	static GV coro_current, coro_idle;
782	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	857	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		858	static int coro_nready;
783		859
784	static void	860	static void
785	coro_enq (SV *sv)	861	coro_enq (pTHX_ SV *sv)
786	{	862	{
787	if (SvROK (sv))	863	if (SvTYPE (sv) == SVt_PVHV)
788	{	864	{
789	SV *hv = SvRV (sv);
790	if (SvTYPE (hv) == SVt_PVHV)
791	{
792	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);	865	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
793	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	866	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
794		867
795	prio = prio > PRIO_MAX ? PRIO_MAX	868	prio = prio > PRIO_MAX ? PRIO_MAX
796	: prio < PRIO_MIN ? PRIO_MIN	869	: prio < PRIO_MIN ? PRIO_MIN
797	: prio;	870	: prio;
798		871
799	av_push (coro_ready [prio - PRIO_MIN], sv);	872	av_push (coro_ready [prio - PRIO_MIN], sv);
		873	coro_nready++;
800		874
801	return;	875	return;
802	}
803	}	876	}
804		877
805	croak ("Coro::ready tried to enqueue something that is not a coroutine");	878	croak ("Coro::ready tried to enqueue something that is not a coroutine");
806	}	879	}
807		880
808	static SV *	881	static SV *
809	coro_deq (int min_prio)	882	coro_deq (pTHX_ int min_prio)
810	{	883	{
811	int prio = PRIO_MAX - PRIO_MIN;	884	int prio = PRIO_MAX - PRIO_MIN;
812		885
813	min_prio -= PRIO_MIN;	886	min_prio -= PRIO_MIN;
814	if (min_prio < 0)	887	if (min_prio < 0)
815	min_prio = 0;	888	min_prio = 0;
816		889
817	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	890	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
818	if (av_len (coro_ready[prio]) >= 0)	891	if (av_len (coro_ready[prio]) >= 0)
		892	{
		893	coro_nready--;
819	return av_shift (coro_ready[prio]);	894	return av_shift (coro_ready[prio]);
		895	}
820		896
821	return 0;	897	return 0;
822	}	898	}
823		899
824	static void	900	static void
825	api_ready (SV *coro)	901	api_ready (SV *coro)
826	{	902	{
		903	dTHX;
		904
		905	if (SvROK (coro))
		906	coro = SvRV (coro);
		907
		908	LOCK;
827	coro_enq (SvREFCNT_inc (coro));	909	coro_enq (aTHX_ SvREFCNT_inc (coro));
		910	UNLOCK;
828	}	911	}
829		912
830	static void	913	static void
831	api_schedule (int cede)	914	api_schedule (void)
832	{	915	{
		916	dTHX;
		917
833	SV prev, next;	918	SV prev, next;
834		919
		920	LOCK;
		921
835	prev = GvSV (coro_current);	922	prev = SvRV (GvSV (coro_current));
836
837	if (cede)
838	coro_enq (SvREFCNT_inc (prev));
839
840	next = coro_deq (PRIO_MIN);	923	next = coro_deq (aTHX_ PRIO_MIN);
841		924
842	if (!next)	925	if (!next)
843	next = SvREFCNT_inc (GvSV (coro_idle));	926	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
844		927
845	GvSV (coro_current) = SvREFCNT_inc (next);	928	/* free this only after the transfer */
846	transfer (sv_to_coro (prev, "Coro::schedule", "current coroutine"),	929	coro_mortal = prev;
847	sv_to_coro (next, "Coro::schedule", "next coroutine"),	930	SV_CORO (prev, "Coro::schedule");
		931
		932	SvRV (GvSV (coro_current)) = next;
		933
		934	SV_CORO (next, "Coro::schedule");
		935
		936	UNLOCK;
		937
		938	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
848	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	939	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
849	SvREFCNT_dec (next);	940	}
850	SvREFCNT_dec (prev);	941
		942	static void
		943	api_cede (void)
		944	{
		945	dTHX;
		946
		947	LOCK;
		948	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		949	UNLOCK;
		950
		951	api_schedule ();
851	}	952	}
852		953
853	MODULE = Coro::State PACKAGE = Coro::State	954	MODULE = Coro::State PACKAGE = Coro::State
854		955
855	PROTOTYPES: ENABLE	956	PROTOTYPES: ENABLE
856		957
857	BOOT:	958	BOOT:
858	{ /* {} necessary for stoopid perl-5.6.x */	959	{ /* {} necessary for stoopid perl-5.6.x */
		960	#ifdef USE_ITHREADS
		961	MUTEX_INIT (&coro_mutex);
		962	#endif
		963
859	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	964	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
860	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	965	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
861	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	966	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
862		967
863	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	968	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
864	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	969	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
865	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	970	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
866	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	971	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
867		972
868	if (!padlist_cache)
869	padlist_cache = newHV ();
870
871	main_mainstack = PL_mainstack;	973	main_mainstack = PL_mainstack;
872		974
873	{
874	SV *sv = perl_get_sv("Coro::API", 1);
875
876	coroapi.ver = CORO_API_VERSION - 1;	975	coroapi.ver = CORO_API_VERSION;
877	coroapi.transfer = api_transfer;	976	coroapi.transfer = api_transfer;
878	coroapi.schedule = api_schedule;
879	coroapi.ready = api_ready;
880
881	GCoroAPI = &coroapi;
882	sv_setiv(sv, (IV)&coroapi);
883	SvREADONLY_on(sv);
884	}
885	}	977	}
886		978
887	Coro::State	979	Coro::State
888	_newprocess(args)	980	_newprocess(args)
889	SV * args	981	SV * args
…		…
892	Coro__State coro;	984	Coro__State coro;
893		985
894	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	986	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
895	croak ("Coro::State::_newprocess expects an arrayref");	987	croak ("Coro::State::_newprocess expects an arrayref");
896		988
897	New (0, coro, 1, struct coro);	989	Newz (0, coro, 1, struct coro);
898		990
899	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	991	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
900	coro->mainstack = 0; /* actual work is done inside transfer */	992	/coro->mainstack = 0; //actual work is done inside transfer /
901	coro->stack = 0;	993	/coro->stack = 0;/
		994
		995	/* same as JMPENV_BOOTSTRAP */
		996	/* we might be able to recycle start_env, but safe is safe */
		997	/Zero(&coro->start_env, 1, JMPENV);/
		998	coro->start_env.je_ret = -1;
		999	coro->start_env.je_mustcatch = TRUE;
902		1000
903	RETVAL = coro;	1001	RETVAL = coro;
904	OUTPUT:	1002	OUTPUT:
905	RETVAL	1003	RETVAL
906		1004
907	void	1005	void
908	transfer(prev, next, flags)	1006	transfer(prev, next, flags)
909	Coro::State_or_hashref prev	1007	SV *prev
910	Coro::State_or_hashref next	1008	SV *next
911	int flags	1009	int flags
912	PROTOTYPE: @	1010	PROTOTYPE: @
913	CODE:	1011	CODE:
914	PUTBACK;	1012	PUTBACK;
		1013	SV_CORO (next, "Coro::transfer");
		1014	SV_CORO (prev, "Coro::transfer");
915	transfer (aTHX_ prev, next, flags);	1015	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
916	SPAGAIN;	1016	SPAGAIN;
917		1017
918	void	1018	void
919	DESTROY(coro)	1019	DESTROY(coro)
920	Coro::State coro	1020	Coro::State coro
…		…
922		1022
923	if (coro->mainstack && coro->mainstack != main_mainstack)	1023	if (coro->mainstack && coro->mainstack != main_mainstack)
924	{	1024	{
925	struct coro temp;	1025	struct coro temp;
926		1026
		1027	PUTBACK;
927	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1028	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
928	LOAD(aTHX_ coro);	1029	LOAD (aTHX_ coro);
		1030	SPAGAIN;
929		1031
930	destroy_stacks (aTHX);	1032	destroy_stacks (aTHX);
931		1033
932	LOAD((&temp)); /* this will get rid of defsv etc.. */	1034	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1035	SPAGAIN;
933		1036
934	coro->mainstack = 0;	1037	coro->mainstack = 0;
935	}	1038	}
936		1039
937	deallocate_stack (coro);	1040	deallocate_stack (coro);
938		1041	SvREFCNT_dec (coro->args);
939	Safefree (coro);	1042	Safefree (coro);
940
941	void
942	flush()
943	CODE:
944	#ifdef MAY_FLUSH
945	flush_padlist_cache ();
946	#endif
947		1043
948	void	1044	void
949	_exit(code)	1045	_exit(code)
950	int code	1046	int code
951	PROTOTYPE: $	1047	PROTOTYPE: $
952	CODE:	1048	CODE:
953	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
954	_exit (code);	1049	_exit (code);
955	#else
956	signal (SIGTERM, SIG_DFL);
957	raise (SIGTERM);
958	exit (code);
959	#endif
960		1050
961	MODULE = Coro::State PACKAGE = Coro::Cont	1051	MODULE = Coro::State PACKAGE = Coro::Cont
962		1052
963	# this is slightly dirty (should expose a c-level api)	1053	# this is slightly dirty (should expose a c-level api)
964		1054
965	void	1055	void
966	yield(...)	1056	yield(...)
967	PROTOTYPE: @	1057	PROTOTYPE: @
968	CODE:	1058	CODE:
969	static SV *returnstk;	1059	SV *yieldstack;
970	SV *sv;	1060	SV *sv;
971	AV *defav = GvAV (PL_defgv);	1061	AV *defav = GvAV (PL_defgv);
972	struct coro prev, next;	1062	struct coro prev, next;
973		1063
974	if (!returnstk)	1064	yieldstack = *hv_fetch (
975	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1065	(HV *)SvRV (GvSV (coro_current)),
		1066	"yieldstack", sizeof ("yieldstack") - 1,
		1067	0
		1068	);
976		1069
977	/* set up @_ -- ugly */	1070	/* set up @_ -- ugly */
978	av_clear (defav);	1071	av_clear (defav);
979	av_fill (defav, items - 1);	1072	av_fill (defav, items - 1);
980	while (items--)	1073	while (items--)
981	av_store (defav, items, SvREFCNT_inc (ST(items)));	1074	av_store (defav, items, SvREFCNT_inc (ST(items)));
982		1075
983	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
984	sv = av_pop ((AV *)SvRV (returnstk));	1076	sv = av_pop ((AV *)SvRV (yieldstack));
985	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1077	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
986	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1078	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
987	SvREFCNT_dec (sv);	1079	SvREFCNT_dec (sv);
988		1080
989	transfer(aTHX_ prev, next, 0);	1081	transfer (aTHX_ prev, next, 0);
990		1082
991	MODULE = Coro::State PACKAGE = Coro	1083	MODULE = Coro::State PACKAGE = Coro
992		1084
993	# this is slightly dirty (should expose a c-level api)	1085	# this is slightly dirty (should expose a c-level api)
994		1086
…		…
1007	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1099	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
1008	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1100	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
1009		1101
1010	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1102	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1011	coro_ready[i] = newAV ();	1103	coro_ready[i] = newAV ();
		1104
		1105	{
		1106	SV *sv = perl_get_sv("Coro::API", 1);
		1107
		1108	coroapi.schedule = api_schedule;
		1109	coroapi.cede = api_cede;
		1110	coroapi.ready = api_ready;
		1111	coroapi.nready = &coro_nready;
		1112	coroapi.current = coro_current;
		1113
		1114	GCoroAPI = &coroapi;
		1115	sv_setiv(sv, (IV)&coroapi);
		1116	SvREADONLY_on(sv);
		1117	}
1012	}	1118	}
		1119
		1120	#if !PERL_MICRO
1013		1121
1014	void	1122	void
1015	ready(self)	1123	ready(self)
1016	SV * self	1124	SV * self
		1125	PROTOTYPE: $
1017	CODE:	1126	CODE:
1018	api_ready (self);	1127	api_ready (self);
1019		1128
		1129	#endif
		1130
		1131	int
		1132	nready(...)
		1133	PROTOTYPE:
		1134	CODE:
		1135	RETVAL = coro_nready;
		1136	OUTPUT:
		1137	RETVAL
		1138
1020	void	1139	void
1021	schedule(...)	1140	schedule(...)
1022	ALIAS:	1141	PROTOTYPE:
1023	cede = 1
1024	CODE:	1142	CODE:
1025	api_schedule (ix);	1143	api_schedule ();
1026		1144
		1145	void
		1146	cede(...)
		1147	PROTOTYPE:
		1148	CODE:
		1149	api_cede ();
		1150

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Comparing Coro/Coro/State.xs (file contents): Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC vs. Revision 1.66 by root, Mon Dec 12 19:43:41 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.24 by root, Tue Aug 14 14:56:22 2001 UTC vs.
Revision 1.66 by root, Mon Dec 12 19:43:41 2005 UTC