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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.17 by root, Wed Jul 25 14:01:46 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"
		31
		32	#include <signal.h>
6		33
7	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
8	# include <unistd.h>	35	# include <unistd.h>
9	# include <sys/mman.h>	36	# include <sys/mman.h>
10	# ifndef MAP_ANON
11	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
12	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
13	# else	40	# else
14	# undef HAVE_MMAP	41	# undef HAVE_MMAP
15	# endif	42	# endif
16	# endif	43	# endif
17	#endif	44	#endif
18		45
19	#define MAY_FLUSH /* increases codesize */
20
21	/* perl-related */
22	#define TRANSFER_SAVE_DEFAV 0x00000001
23	#define TRANSFER_SAVE_DEFSV 0x00000002
24	#define TRANSFER_SAVE_ERRSV 0x00000004
25	/* c-related */
26	#define TRANSFER_SAVE_CCTXT 0x00000008
27	#ifdef CORO_LAZY_STACK
28	# define TRANSFER_LAZY_STACK 0x00000010
29	#else
30	# define TRANSFER_LAZY_STACK 0x00000000
31	#endif
32
33	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
34	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
35
36	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
37	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
38		48
39	/* The next macro should delcare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
40	* to the current C stack pointer. It's property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
41	* and should be unique. */	51	* and should be unique. */
42	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
43		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
44	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
		57
		58	#include "CoroAPI.h"
		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK 0
		66	# define UNLOCK 0
		67	#endif
		68
		69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
45		75
46	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
47	typedef struct {	77	typedef struct {
48	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
49	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
53		83
54	void *sptr;	84	void *sptr;
55	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
56	} coro_stack;	86	} coro_stack;
57		87
58	static coro_stack main_stack = { 1, 0, 0 };
59
60	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
61	/* the optional C context */	92	/* the optional C context */
62	coro_stack *stack;	93	coro_stack *stack;
63	void *cursp;	94	void *cursp;
64	int gencnt;	95	int gencnt;
65		96
…		…
68	SV *defsv;	99	SV *defsv;
69	SV *errsv;	100	SV *errsv;
70		101
71	/* saved global state not related to stacks */	102	/* saved global state not related to stacks */
72	U8 dowarn;	103	U8 dowarn;
		104	I32 in_eval;
73		105
74	/* the stacks and related info (callchain etc..) */	106	/* the stacks and related info (callchain etc..) */
75	PERL_SI *curstackinfo;	107	PERL_SI *curstackinfo;
76	AV *curstack;	108	AV *curstack;
77	AV *mainstack;	109	AV *mainstack;
78	SV **stack_sp;	110	SV **stack_sp;
79	OP *op;	111	OP *op;
80	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
81	SV **stack_base;	115	SV **stack_base;
82	SV **stack_max;	116	SV **stack_max;
83	SV **tmps_stack;	117	SV **tmps_stack;
84	I32 tmps_floor;	118	I32 tmps_floor;
85	I32 tmps_ix;	119	I32 tmps_ix;
…		…
95	I32 savestack_max;	129	I32 savestack_max;
96	OP **retstack;	130	OP **retstack;
97	I32 retstack_ix;	131	I32 retstack_ix;
98	I32 retstack_max;	132	I32 retstack_max;
99	COP *curcop;	133	COP *curcop;
100	JMPENV start_env;
101	JMPENV *top_env;	134	JMPENV *top_env;
102		135
103	/* data associated with this coroutine (initial args) */	136	/* data associated with this coroutine (initial args) */
104	AV *args;	137	AV *args;
105	};	138	};
106		139
107	typedef struct coro *Coro__State;	140	typedef struct coro *Coro__State;
108	typedef struct coro *Coro__State_or_hashref;	141	typedef struct coro *Coro__State_or_hashref;
109		142
110	static AV main_mainstack; / used to differentiate between $main and others */
111	static HV *coro_state_stash;
112	static SV *ucoro_state_sv;
113	static U32 ucoro_state_hash;
114	static HV *padlist_cache;
115
116	/* mostly copied from op.c:cv_clone2 */	143	/* mostly copied from op.c:cv_clone2 */
117	STATIC AV *	144	STATIC AV *
118	clone_padlist (AV *protopadlist)	145	clone_padlist (pTHX_ AV *protopadlist)
119	{	146	{
120	AV *av;	147	AV *av;
121	I32 ix;	148	I32 ix;
122	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	149	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
123	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	150	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
147	AvFLAGS (av) = AVf_REIFY;	174	AvFLAGS (av) = AVf_REIFY;
148		175
149	for (ix = fpad; ix > 0; ix--)	176	for (ix = fpad; ix > 0; ix--)
150	{	177	{
151	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	178	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		179
152	if (namesv && namesv != &PL_sv_undef)	180	if (namesv && namesv != &PL_sv_undef)
153	{	181	{
154	char name = SvPVX (namesv); / XXX */	182	char name = SvPVX (namesv); / XXX */
		183
155	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	184	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
156	{ /* lexical from outside? */	185	{ /* lexical from outside? */
157	npad[ix] = SvREFCNT_inc (ppad[ix]);	186	npad[ix] = SvREFCNT_inc (ppad[ix]);
158	}	187	}
159	else	188	else
…		…
165	sv = (SV *) newAV ();	194	sv = (SV *) newAV ();
166	else if (*name == '%')	195	else if (*name == '%')
167	sv = (SV *) newHV ();	196	sv = (SV *) newHV ();
168	else	197	else
169	sv = NEWSV (0, 0);	198	sv = NEWSV (0, 0);
		199
		200	#ifdef SvPADBUSY
170	if (!SvPADBUSY (sv))	201	if (!SvPADBUSY (sv))
		202	#endif
171	SvPADMY_on (sv);	203	SvPADMY_on (sv);
		204
172	npad[ix] = sv;	205	npad[ix] = sv;
173	}	206	}
174	}	207	}
175	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	208	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
176	{	209	{
…		…
205	#endif	238	#endif
206		239
207	return newpadlist;	240	return newpadlist;
208	}	241	}
209		242
210	#ifdef MAY_FLUSH	243	STATIC void
211	STATIC AV *
212	free_padlist (AV *padlist)	244	free_padlist (pTHX_ AV *padlist)
213	{	245	{
214	/* may be during global destruction */	246	/* may be during global destruction */
215	if (SvREFCNT(padlist))	247	if (SvREFCNT (padlist))
216	{	248	{
217	I32 i = AvFILLp(padlist);	249	I32 i = AvFILLp (padlist);
218	while (i >= 0)	250	while (i >= 0)
219	{	251	{
220	SV **svp = av_fetch(padlist, i--, FALSE);	252	SV **svp = av_fetch (padlist, i--, FALSE);
221	SV sv = svp ? svp : Nullsv;
222	if (sv)	253	if (svp)
		254	{
		255	SV *sv;
		256	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
223	SvREFCNT_dec(sv);	257	SvREFCNT_dec (sv);
		258
		259	SvREFCNT_dec (*svp);
		260	}
224	}	261	}
225		262
226	SvREFCNT_dec((SV*)padlist);	263	SvREFCNT_dec ((SV*)padlist);
227	}	264	}
228	}	265	}
229	#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};
230		283
231	/* the next two functions merely cache the padlists */	284	/* the next two functions merely cache the padlists */
232	STATIC void	285	STATIC void
233	get_padlist (CV *cv)	286	get_padlist (pTHX_ CV *cv)
234	{	287	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	288	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		289
237	if (he && AvFILLp ((AV )he) >= 0)	290	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
238	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	291	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
239	else	292	else
240	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	293	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
241	}	294	}
242		295
243	STATIC void	296	STATIC void
244	put_padlist (CV *cv)	297	put_padlist (pTHX_ CV *cv)
245	{	298	{
246	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	299	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
247		300
248	if (SvTYPE (*he) != SVt_PVAV)	301	if (!mg)
249	{	302	{
250	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;
251	he = (SV )newAV ();	306	mg->mg_obj = (SV *)newAV ();
252	}	307	}
253		308
254	av_push ((AV )he, (SV *)CvPADLIST (cv));	309	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
255	}	310	}
256
257	#ifdef MAY_FLUSH
258	STATIC void
259	flush_padlist_cache ()
260	{
261	HV *hv = padlist_cache;
262	padlist_cache = newHV ();
263
264	if (hv_iterinit (hv))
265	{
266	HE *he;
267	AV *padlist;
268
269	while (!!(he = hv_iternext (hv)))
270	{
271	AV av = (AV )HeVAL(he);
272
273	/* casting is fun. */
274	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
275	free_padlist (padlist);
276	}
277	}
278
279	SvREFCNT_dec (hv);
280	}
281	#endif
282		311
283	#define SB do {	312	#define SB do {
284	#define SE } while (0)	313	#define SE } while (0)
285		314
286	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	315	#define LOAD(state) load_state(aTHX_ (state));
287	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	316	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
288		317
289	#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
290		319
291	static void	320	static void
292	load_state(pTHX_ Coro__State c)	321	load_state(pTHX_ Coro__State c)
293	{	322	{
294	PL_dowarn = c->dowarn;	323	PL_dowarn = c->dowarn;
		324	PL_in_eval = c->in_eval;
295		325
296	PL_curstackinfo = c->curstackinfo;	326	PL_curstackinfo = c->curstackinfo;
297	PL_curstack = c->curstack;	327	PL_curstack = c->curstack;
298	PL_mainstack = c->mainstack;	328	PL_mainstack = c->mainstack;
299	PL_stack_sp = c->stack_sp;	329	PL_stack_sp = c->stack_sp;
300	PL_op = c->op;	330	PL_op = c->op;
301	PL_curpad = c->curpad;	331	PL_curpad = c->curpad;
		332	PL_comppad = c->comppad;
		333	PL_compcv = c->compcv;
302	PL_stack_base = c->stack_base;	334	PL_stack_base = c->stack_base;
303	PL_stack_max = c->stack_max;	335	PL_stack_max = c->stack_max;
304	PL_tmps_stack = c->tmps_stack;	336	PL_tmps_stack = c->tmps_stack;
305	PL_tmps_floor = c->tmps_floor;	337	PL_tmps_floor = c->tmps_floor;
306	PL_tmps_ix = c->tmps_ix;	338	PL_tmps_ix = c->tmps_ix;
…		…
316	PL_savestack_max = c->savestack_max;	348	PL_savestack_max = c->savestack_max;
317	PL_retstack = c->retstack;	349	PL_retstack = c->retstack;
318	PL_retstack_ix = c->retstack_ix;	350	PL_retstack_ix = c->retstack_ix;
319	PL_retstack_max = c->retstack_max;	351	PL_retstack_max = c->retstack_max;
320	PL_curcop = c->curcop;	352	PL_curcop = c->curcop;
321	PL_start_env = c->start_env;
322	PL_top_env = c->top_env;	353	PL_top_env = c->top_env;
323		354
324	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	355	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
325	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	356	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
326	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	357	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
334	{	365	{
335	AV padlist = (AV )POPs;	366	AV padlist = (AV )POPs;
336		367
337	if (padlist)	368	if (padlist)
338	{	369	{
339	put_padlist (cv); /* mark this padlist as available */	370	put_padlist (aTHX_ cv); /* mark this padlist as available */
340	CvPADLIST(cv) = padlist;	371	CvPADLIST(cv) = padlist;
341	#ifdef USE_THREADS
342	/CvOWNER(cv) = (struct perl_thread )POPs;*/
343	#endif
344	}	372	}
345		373
346	++CvDEPTH(cv);	374	++CvDEPTH(cv);
347	}	375	}
348		376
…		…
366		394
367	PUSHs (Nullsv);	395	PUSHs (Nullsv);
368	/* this loop was inspired by pp_caller */	396	/* this loop was inspired by pp_caller */
369	for (;;)	397	for (;;)
370	{	398	{
371	do	399	while (cxix >= 0)
372	{	400	{
373	PERL_CONTEXT *cx = &ccstk[cxix--];	401	PERL_CONTEXT *cx = &ccstk[cxix--];
374		402
375	if (CxTYPE(cx) == CXt_SUB)	403	if (CxTYPE(cx) == CXt_SUB)
376	{	404	{
377	CV *cv = cx->blk_sub.cv;	405	CV *cv = cx->blk_sub.cv;
378	if (CvDEPTH(cv))	406	if (CvDEPTH(cv))
379	{	407	{
380	#ifdef USE_THREADS
381	/XPUSHs ((SV )CvOWNER(cv));*/
382	/CvOWNER(cv) = 0;/
383	/error must unlock this cv etc.. etc.../
384	#endif
385	EXTEND (SP, CvDEPTH(cv)*2);	408	EXTEND (SP, CvDEPTH(cv)*2);
386		409
387	while (--CvDEPTH(cv))	410	while (--CvDEPTH(cv))
388	{	411	{
389	/* this tells the restore code to increment CvDEPTH */	412	/* this tells the restore code to increment CvDEPTH */
…		…
392	}	415	}
393		416
394	PUSHs ((SV *)CvPADLIST(cv));	417	PUSHs ((SV *)CvPADLIST(cv));
395	PUSHs ((SV *)cv);	418	PUSHs ((SV *)cv);
396		419
397	get_padlist (cv); /* this is a monster */	420	get_padlist (aTHX_ cv); /* this is a monster */
398	}	421	}
399	}	422	}
		423	#ifdef CXt_FORMAT
400	else if (CxTYPE(cx) == CXt_FORMAT)	424	else if (CxTYPE(cx) == CXt_FORMAT)
401	{	425	{
402	/* 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? */
403	/* my bold guess is as a simple, plain sub... */	427	/* my bold guess is as a simple, plain sub... */
404	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");
405	}	429	}
		430	#endif
406	}	431	}
407	while (cxix >= 0);
408		432
409	if (top_si->si_type == PERLSI_MAIN)	433	if (top_si->si_type == PERLSI_MAIN)
410	break;	434	break;
411		435
412	top_si = top_si->si_prev;	436	top_si = top_si->si_prev;
…		…
419		443
420	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;
421	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	445	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	446	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
423		447
424	/* I have not the slightest idea of why av_reify is necessary */
425	/* but if it's missing the defav contents magically get replaced sometimes */
426	if (c->defav)
427	av_reify (c->defav);
428
429	c->dowarn = PL_dowarn;	448	c->dowarn = PL_dowarn;
		449	c->in_eval = PL_in_eval;
430		450
431	c->curstackinfo = PL_curstackinfo;	451	c->curstackinfo = PL_curstackinfo;
432	c->curstack = PL_curstack;	452	c->curstack = PL_curstack;
433	c->mainstack = PL_mainstack;	453	c->mainstack = PL_mainstack;
434	c->stack_sp = PL_stack_sp;	454	c->stack_sp = PL_stack_sp;
435	c->op = PL_op;	455	c->op = PL_op;
436	c->curpad = PL_curpad;	456	c->curpad = PL_curpad;
		457	c->comppad = PL_comppad;
		458	c->compcv = PL_compcv;
437	c->stack_base = PL_stack_base;	459	c->stack_base = PL_stack_base;
438	c->stack_max = PL_stack_max;	460	c->stack_max = PL_stack_max;
439	c->tmps_stack = PL_tmps_stack;	461	c->tmps_stack = PL_tmps_stack;
440	c->tmps_floor = PL_tmps_floor;	462	c->tmps_floor = PL_tmps_floor;
441	c->tmps_ix = PL_tmps_ix;	463	c->tmps_ix = PL_tmps_ix;
…		…
451	c->savestack_max = PL_savestack_max;	473	c->savestack_max = PL_savestack_max;
452	c->retstack = PL_retstack;	474	c->retstack = PL_retstack;
453	c->retstack_ix = PL_retstack_ix;	475	c->retstack_ix = PL_retstack_ix;
454	c->retstack_max = PL_retstack_max;	476	c->retstack_max = PL_retstack_max;
455	c->curcop = PL_curcop;	477	c->curcop = PL_curcop;
456	c->start_env = PL_start_env;
457	c->top_env = PL_top_env;	478	c->top_env = PL_top_env;
458	}	479	}
459		480
460	/*	481	/*
461	* allocate various perl stacks. This is an exact copy	482	* allocate various perl stacks. This is an exact copy
462	* of perl.c:init_stacks, except that it uses less memory	483	* of perl.c:init_stacks, except that it uses less memory
463	* on the assumption that coroutines do not usually need	484	* on the (sometimes correct) assumption that coroutines do
464	* a lot of stackspace.	485	* not usually need a lot of stackspace.
465	*/	486	*/
466	STATIC void	487	STATIC void
467	coro_init_stacks (pTHX)	488	coro_init_stacks (pTHX)
468	{	489	{
		490	LOCK;
		491
469	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	492	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
470	PL_curstackinfo->si_type = PERLSI_MAIN;	493	PL_curstackinfo->si_type = PERLSI_MAIN;
471	PL_curstack = PL_curstackinfo->si_stack;	494	PL_curstack = PL_curstackinfo->si_stack;
472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	495	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
473		496
…		…
482		505
483	New(54,PL_markstack,16,I32);	506	New(54,PL_markstack,16,I32);
484	PL_markstack_ptr = PL_markstack;	507	PL_markstack_ptr = PL_markstack;
485	PL_markstack_max = PL_markstack + 16;	508	PL_markstack_max = PL_markstack + 16;
486		509
		510	#ifdef SET_MARK_OFFSET
487	SET_MARK_OFFSET;	511	SET_MARK_OFFSET;
		512	#endif
488		513
489	New(54,PL_scopestack,16,I32);	514	New(54,PL_scopestack,16,I32);
490	PL_scopestack_ix = 0;	515	PL_scopestack_ix = 0;
491	PL_scopestack_max = 16;	516	PL_scopestack_max = 16;
492		517
…		…
495	PL_savestack_max = 96;	520	PL_savestack_max = 96;
496		521
497	New(54,PL_retstack,8,OP*);	522	New(54,PL_retstack,8,OP*);
498	PL_retstack_ix = 0;	523	PL_retstack_ix = 0;
499	PL_retstack_max = 8;	524	PL_retstack_max = 8;
		525
		526	UNLOCK;
500	}	527	}
501		528
502	/*	529	/*
503	* destroy the stacks, the callchain etc...	530	* destroy the stacks, the callchain etc...
504	* still there is a memleak of 128 bytes...
505	*/	531	*/
506	STATIC void	532	STATIC void
507	destroy_stacks(pTHX)	533	destroy_stacks(pTHX)
508	{	534	{
		535	if (!IN_DESTRUCT)
		536	{
509	/* is this ugly, I ask? */	537	/* is this ugly, I ask? */
510	while (PL_scopestack_ix)	538	LEAVE_SCOPE (0);
511	LEAVE;
512		539
513	/* sure it is, but more important: is it correct?? :/ */	540	/* sure it is, but more important: is it correct?? :/ */
514	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
515	FREETMPS;	541	FREETMPS;
		542
		543	/POPSTACK_TO (PL_mainstack);//D//use/
		544	}
516		545
517	while (PL_curstackinfo->si_next)	546	while (PL_curstackinfo->si_next)
518	PL_curstackinfo = PL_curstackinfo->si_next;	547	PL_curstackinfo = PL_curstackinfo->si_next;
519		548
520	while (PL_curstackinfo)	549	while (PL_curstackinfo)
521	{	550	{
522	PERL_SI *p = PL_curstackinfo->si_prev;	551	PERL_SI *p = PL_curstackinfo->si_prev;
523		552
524	{	553	{ /D//remove/
525	dSP;	554	dSP;
526	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	555	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
527	PUTBACK; /* possibly superfluous */	556	PUTBACK; /* possibly superfluous */
528	}	557	}
529		558
530	dounwind(-1);	559	if (!IN_DESTRUCT)
531		560	{
		561	dounwind (-1);/D//remove/
532	SvREFCNT_dec(PL_curstackinfo->si_stack);	562	SvREFCNT_dec (PL_curstackinfo->si_stack);
		563	}
		564
533	Safefree(PL_curstackinfo->si_cxstack);	565	Safefree (PL_curstackinfo->si_cxstack);
534	Safefree(PL_curstackinfo);	566	Safefree (PL_curstackinfo);
535	PL_curstackinfo = p;	567	PL_curstackinfo = p;
536	}	568	}
537		569
538	Safefree(PL_tmps_stack);	570	Safefree (PL_tmps_stack);
539	Safefree(PL_markstack);	571	Safefree (PL_markstack);
540	Safefree(PL_scopestack);	572	Safefree (PL_scopestack);
541	Safefree(PL_savestack);	573	Safefree (PL_savestack);
542	Safefree(PL_retstack);	574	Safefree (PL_retstack);
543	}	575	}
544		576
545	static void	577	static void
546	allocate_stack (Coro__State ctx, int alloc)	578	allocate_stack (Coro__State ctx, int alloc)
547	{	579	{
…		…
550	New (0, stack, 1, coro_stack);	582	New (0, stack, 1, coro_stack);
551		583
552	stack->refcnt = 1;	584	stack->refcnt = 1;
553	stack->usecnt = 1;	585	stack->usecnt = 1;
554	stack->gencnt = ctx->gencnt = 0;	586	stack->gencnt = ctx->gencnt = 0;
		587
555	if (alloc)	588	if (alloc)
556	{	589	{
557	#ifdef HAVE_MMAP	590	#if HAVE_MMAP
558	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 */
559	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);
560	if (stack->sptr == (void *)-1)	593	if (stack->sptr == (void *)-1)
561	#endif	594	#endif
562	{	595	{
563	/FIXME//D//* reasonable stack size! */	596	/FIXME//D//* reasonable stack size! */
564	stack->ssize = -4096 * sizeof (long);	597	stack->ssize = - (8192 * sizeof (long));
565	New (0, stack->sptr, 4096, long);	598	New (0, stack->sptr, 8192, long);
566	}	599	}
567	}	600	}
568	else	601	else
569	stack->sptr = 0;	602	stack->sptr = 0;
570		603
…		…
584	{	617	{
585	#ifdef HAVE_MMAP	618	#ifdef HAVE_MMAP
586	if (stack->ssize > 0 && stack->sptr)	619	if (stack->ssize > 0 && stack->sptr)
587	munmap (stack->sptr, stack->ssize);	620	munmap (stack->sptr, stack->ssize);
588	else	621	else
589	#else	622	#endif
590	Safefree (stack->sptr);	623	Safefree (stack->sptr);
591	#endif	624
592	Safefree (stack);	625	Safefree (stack);
593	}	626	}
594	else if (ctx->gencnt == stack->gencnt)	627	else if (ctx->gencnt == stack->gencnt)
595	--stack->usecnt;	628	--stack->usecnt;
596	}	629	}
…		…
600	setup_coro (void *arg)	633	setup_coro (void *arg)
601	{	634	{
602	/*	635	/*
603	* emulate part of the perl startup here.	636	* emulate part of the perl startup here.
604	*/	637	*/
		638	dTHX;
605	dSP;	639	dSP;
606	Coro__State ctx = (Coro__State)arg;	640	Coro__State ctx = (Coro__State)arg;
607	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	641	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
608		642
609	coro_init_stacks (aTHX);	643	coro_init_stacks (aTHX);
610	JMPENV_BOOTSTRAP;	644	/PL_curcop = 0;/
		645	/PL_in_eval = PL_in_eval;/ /* inherit */
		646	SvREFCNT_dec (GvAV (PL_defgv));
		647	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
		648
611	SPAGAIN;	649	SPAGAIN;
612
613	/PL_curcop = 0;/
614	SvREFCNT_dec (GvAV (PL_defgv));
615	GvAV (PL_defgv) = ctx->args;
616		650
617	if (ctx->stack)	651	if (ctx->stack)
618	{	652	{
619	ctx->cursp = 0;	653	ctx->cursp = 0;
620		654
621	PUSHMARK(SP);	655	PUSHMARK(SP);
622	PUTBACK;	656	PUTBACK;
623	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	657	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		658
		659	if (SvTRUE (ERRSV))
		660	croak (NULL);
		661	else
624	croak ("FATAL: CCTXT coroutine returned!");	662	croak ("FATAL: CCTXT coroutine returned!");
625	}	663	}
626	else	664	else
627	{	665	{
628	UNOP myop;	666	UNOP myop;
629		667
…		…
641	* that doesn't matter, though, since it is only	679	* that doesn't matter, though, since it is only
642	* pp_nextstate and we never return...	680	* pp_nextstate and we never return...
643	* ah yes, and I don't care anyways ;)	681	* ah yes, and I don't care anyways ;)
644	*/	682	*/
645	PUTBACK;	683	PUTBACK;
646	PL_op = pp_entersub();	684	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
647	SPAGAIN;	685	SPAGAIN;
648		686
649	ENTER; /* necessary e.g. for dounwind */	687	ENTER; /* necessary e.g. for dounwind */
650	}	688	}
651	}	689	}
…		…
654	continue_coro (void *arg)	692	continue_coro (void *arg)
655	{	693	{
656	/*	694	/*
657	* this is a _very_ stripped down perl interpreter ;)	695	* this is a _very_ stripped down perl interpreter ;)
658	*/	696	*/
		697	dTHX;
659	Coro__State ctx = (Coro__State)arg;	698	Coro__State ctx = (Coro__State)arg;
		699	JMPENV coro_start_env;
		700
		701	PL_top_env = &ctx->start_env;
660		702
661	ctx->cursp = 0;	703	ctx->cursp = 0;
662	PL_op = PL_op->op_next;	704	PL_op = PL_op->op_next;
663	CALLRUNOPS(aTHX);	705	CALLRUNOPS(aTHX);
664	/NORETURN/	706
665	abort ();	707	abort ();
666	}	708	}
667		709
668	STATIC void	710	STATIC void
669	transfer(pTHX_ struct coro prev, struct coro next, int flags)	711	transfer (pTHX_ struct coro prev, struct coro next, int flags)
670	{	712	{
671	dSP;
672	dSTACKLEVEL;	713	dSTACKLEVEL;
673		714
674	if (prev != next)	715	if (prev != next)
675	{	716	{
676	if (next->mainstack)	717	if (next->mainstack)
677	{	718	{
		719	LOCK;
678	SAVE (prev, flags);	720	SAVE (prev, flags);
679	LOAD (next);	721	LOAD (next);
		722	UNLOCK;
680		723
681	/* mark this state as in-use */	724	/* mark this state as in-use */
682	next->mainstack = 0;	725	next->mainstack = 0;
683	next->tmps_ix = -2;	726	next->tmps_ix = -2;
684		727
…		…
703	continue_coro, (void *)next,	746	continue_coro, (void *)next,
704	next->stack->sptr, labs (next->stack->ssize));	747	next->stack->sptr, labs (next->stack->ssize));
705	}	748	}
706		749
707	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 */
708	}	753	}
709		754	else
		755	next->cursp = stacklevel;
710	}	756	}
711	else if (next->tmps_ix == -2)	757	else if (next->tmps_ix == -2)
712	croak ("tried to transfer to running coroutine");	758	croak ("tried to transfer to running coroutine");
713	else	759	else
714	{	760	{
		761	LOCK;
715	SAVE (prev, -1); /* first get rid of the old state */	762	SAVE (prev, -1); /* first get rid of the old state */
		763	UNLOCK;
716		764
717	if (flags & TRANSFER_SAVE_CCTXT)	765	if (flags & TRANSFER_SAVE_CCTXT)
718	{	766	{
719	if (!prev->stack)	767	if (!prev->stack)
720	allocate_stack (prev, 0);	768	allocate_stack (prev, 0);
721		769
722	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	770	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
723	{	771	{
		772	PL_top_env = &next->start_env;
		773
724	setup_coro (next);	774	setup_coro (next);
		775	next->cursp = stacklevel;
725		776
726	prev->stack->refcnt++;	777	prev->stack->refcnt++;
727	prev->stack->usecnt++;	778	prev->stack->usecnt++;
728	next->stack = prev->stack;	779	next->stack = prev->stack;
729	next->gencnt = prev->gencnt;	780	next->gencnt = prev->gencnt;
730	}	781	}
731	else	782	else
732	{	783	{
		784	assert (!next->stack);
733	allocate_stack (next, 1);	785	allocate_stack (next, 1);
734	coro_create (&(next->stack->cctx),	786	coro_create (&(next->stack->cctx),
735	setup_coro, (void *)next,	787	setup_coro, (void *)next,
736	next->stack->sptr, labs (next->stack->ssize));	788	next->stack->sptr, labs (next->stack->ssize));
737	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 */
738	}	792	}
739	}	793	}
740	else	794	else
		795	{
741	setup_coro (next);	796	setup_coro (next);
		797	next->cursp = stacklevel;
		798	}
742	}	799	}
743	}	800	}
744		801
745	next->cursp = stacklevel;	802	LOCK;
		803	if (coro_mortal)
		804	{
		805	SvREFCNT_dec (coro_mortal);
		806	coro_mortal = 0;
		807	}
		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	\
		826	/* must also be changed inside Coro::Cont::yield */ \
		827	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
		828	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		829	\
		830	} while(0)
		831
		832	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		833
		834	static void
		835	api_transfer(pTHX_ SV prev, SV next, int flags)
		836	{
		837	SV_CORO (prev, "Coro::transfer");
		838	SV_CORO (next, "Coro::transfer");
		839
		840	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		841	}
		842
		843	/ Coro ******************************************************************/
		844
		845	#define PRIO_MAX 3
		846	#define PRIO_HIGH 1
		847	#define PRIO_NORMAL 0
		848	#define PRIO_LOW -1
		849	#define PRIO_IDLE -3
		850	#define PRIO_MIN -4
		851
		852	/* for Coro.pm */
		853	static GV coro_current, coro_idle;
		854	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		855	static int coro_nready;
		856
		857	static void
		858	coro_enq (pTHX_ SV *sv)
		859	{
		860	if (SvTYPE (sv) == SVt_PVHV)
		861	{
		862	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		863	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		864
		865	prio = prio > PRIO_MAX ? PRIO_MAX
		866	: prio < PRIO_MIN ? PRIO_MIN
		867	: prio;
		868
		869	av_push (coro_ready [prio - PRIO_MIN], sv);
		870	coro_nready++;
		871
		872	return;
		873	}
		874
		875	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		876	}
		877
		878	static SV *
		879	coro_deq (pTHX_ int min_prio)
		880	{
		881	int prio = PRIO_MAX - PRIO_MIN;
		882
		883	min_prio -= PRIO_MIN;
		884	if (min_prio < 0)
		885	min_prio = 0;
		886
		887	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		888	if (av_len (coro_ready[prio]) >= 0)
		889	{
		890	coro_nready--;
		891	return av_shift (coro_ready[prio]);
		892	}
		893
		894	return 0;
		895	}
		896
		897	static void
		898	api_ready (SV *coro)
		899	{
		900	dTHX;
		901
		902	if (SvROK (coro))
		903	coro = SvRV (coro);
		904
		905	LOCK;
		906	coro_enq (aTHX_ SvREFCNT_inc (coro));
		907	UNLOCK;
		908	}
		909
		910	static void
		911	api_schedule (void)
		912	{
		913	dTHX;
		914
		915	SV prev, next;
		916
		917	LOCK;
		918
		919	prev = SvRV (GvSV (coro_current));
		920	next = coro_deq (aTHX_ PRIO_MIN);
		921
		922	if (!next)
		923	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		924
		925	/* free this only after the transfer */
		926	coro_mortal = prev;
		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),
		936	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		937	}
		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 ();
746	}	949	}
747		950
748	MODULE = Coro::State PACKAGE = Coro::State	951	MODULE = Coro::State PACKAGE = Coro::State
749		952
750	PROTOTYPES: ENABLE	953	PROTOTYPES: ENABLE
751		954
752	BOOT:	955	BOOT:
753	{ /* {} 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
754	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	961	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
755	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	962	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
756	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	963	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
757		964
758	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	965	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
759	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	966	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
760	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	967	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
761	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	968	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
762		969
763	if (!padlist_cache)
764	padlist_cache = newHV ();
765
766	main_mainstack = PL_mainstack;	970	main_mainstack = PL_mainstack;
		971
		972	coroapi.ver = CORO_API_VERSION;
		973	coroapi.transfer = api_transfer;
767	}	974	}
768		975
769	Coro::State	976	Coro::State
770	_newprocess(args)	977	_newprocess(args)
771	SV * args	978	SV * args
…		…
774	Coro__State coro;	981	Coro__State coro;
775		982
776	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	983	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
777	croak ("Coro::State::_newprocess expects an arrayref");	984	croak ("Coro::State::_newprocess expects an arrayref");
778		985
779	New (0, coro, 1, struct coro);	986	Newz (0, coro, 1, struct coro);
780		987
781	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	988	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
782	coro->mainstack = 0; /* actual work is done inside transfer */	989	/coro->mainstack = 0; //actual work is done inside transfer /
783	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;
784		997
785	RETVAL = coro;	998	RETVAL = coro;
786	OUTPUT:	999	OUTPUT:
787	RETVAL	1000	RETVAL
788		1001
789	void	1002	void
790	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	1003	transfer(prev, next, flags)
791	Coro::State_or_hashref prev	1004	SV *prev
792	Coro::State_or_hashref next	1005	SV *next
793	int flags	1006	int flags
794	PROTOTYPE: @	1007	PROTOTYPE: @
795	CODE:	1008	CODE:
		1009	PUTBACK;
		1010	SV_CORO (next, "Coro::transfer");
		1011	SV_CORO (prev, "Coro::transfer");
796	transfer (aTHX_ prev, next, flags);	1012	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		1013	SPAGAIN;
797		1014
798	void	1015	void
799	DESTROY(coro)	1016	DESTROY(coro)
800	Coro::State coro	1017	Coro::State coro
801	CODE:	1018	CODE:
802		1019
803	if (coro->mainstack && coro->mainstack != main_mainstack)	1020	if (coro->mainstack && coro->mainstack != main_mainstack)
804	{	1021	{
805	struct coro temp;	1022	struct coro temp;
806		1023
		1024	PUTBACK;
807	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1025	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
808	LOAD(aTHX_ coro);	1026	LOAD (aTHX_ coro);
		1027	SPAGAIN;
809		1028
810	destroy_stacks (aTHX);	1029	destroy_stacks (aTHX);
811		1030
812	LOAD((&temp)); /* this will get rid of defsv etc.. */	1031	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1032	SPAGAIN;
813		1033
814	coro->mainstack = 0;	1034	coro->mainstack = 0;
815	}	1035	}
816		1036
817	deallocate_stack (coro);	1037	deallocate_stack (coro);
818		1038	SvREFCNT_dec (coro->args);
819	Safefree (coro);	1039	Safefree (coro);
820		1040
821	void	1041	void
822	flush()	1042	_exit(code)
		1043	int code
		1044	PROTOTYPE: $
823	CODE:	1045	CODE:
824	#ifdef MAY_FLUSH	1046	_exit (code);
825	flush_padlist_cache ();
826	#endif
827		1047
828	MODULE = Coro::State PACKAGE = Coro::Cont	1048	MODULE = Coro::State PACKAGE = Coro::Cont
829		1049
830	# this is slightly dirty	1050	# this is slightly dirty (should expose a c-level api)
831		1051
832	void	1052	void
833	yield(...)	1053	yield(...)
834	PROTOTYPE: @	1054	PROTOTYPE: @
835	CODE:	1055	CODE:
…		…
837	SV *sv;	1057	SV *sv;
838	AV *defav = GvAV (PL_defgv);	1058	AV *defav = GvAV (PL_defgv);
839	struct coro prev, next;	1059	struct coro prev, next;
840		1060
841	if (!returnstk)	1061	if (!returnstk)
842	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1062	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
843		1063
844	/* set up @_ -- ugly */	1064	/* set up @_ -- ugly */
845	av_clear (defav);	1065	av_clear (defav);
846	av_fill (defav, items - 1);	1066	av_fill (defav, items - 1);
847	while (items--)	1067	while (items--)
848	av_store (defav, items, SvREFCNT_inc (ST(items)));	1068	av_store (defav, items, SvREFCNT_inc (ST(items)));
849		1069
850	mg_get (returnstk); /* isn't documentation wrong for mg_get? */	1070	SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
851	sv = av_pop ((AV *)SvRV (returnstk));	1071	sv = av_pop ((AV *)SvRV (returnstk));
852	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)));
853	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)));
854	SvREFCNT_dec (sv);	1074	SvREFCNT_dec (sv);
855		1075
856	transfer(aTHX_ prev, next, 0);	1076	transfer (aTHX_ prev, next, 0);
857		1077
		1078	MODULE = Coro::State PACKAGE = Coro
		1079
		1080	# this is slightly dirty (should expose a c-level api)
		1081
		1082	BOOT:
		1083	{
		1084	int i;
		1085	HV *stash = gv_stashpv ("Coro", TRUE);
		1086
		1087	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1088	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1089	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1090	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1091	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1092	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1093
		1094	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1095	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1096
		1097	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		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	}
		1113	}
		1114
		1115	#if !PERL_MICRO
		1116
		1117	void
		1118	ready(self)
		1119	SV * self
		1120	PROTOTYPE: $
		1121	CODE:
		1122	api_ready (self);
		1123
		1124	#endif
		1125
		1126	int
		1127	nready(...)
		1128	PROTOTYPE:
		1129	CODE:
		1130	RETVAL = coro_nready;
		1131	OUTPUT:
		1132	RETVAL
		1133
		1134	void
		1135	schedule(...)
		1136	PROTOTYPE:
		1137	CODE:
		1138	api_schedule ();
		1139
		1140	void
		1141	cede(...)
		1142	PROTOTYPE:
		1143	CODE:
		1144	api_cede ();
		1145

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Comparing Coro/Coro/State.xs (file contents): Revision 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs. Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.17 by root, Wed Jul 25 14:01:46 2001 UTC vs.
Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC