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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.15 by root, Wed Jul 25 04:14:38 2001 UTC vs.
Revision 1.57 by pcg, Thu Apr 22 04:14:49 2004 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
1	#include "EXTERN.h"	3	#include "EXTERN.h"
2	#include "perl.h"	4	#include "perl.h"
3	#include "XSUB.h"	5	#include "XSUB.h"
4		6
		7	#include "patchlevel.h"
		8
		9	#if PATCHLEVEL < 6
		10	# ifndef PL_ppaddr
		11	# define PL_ppaddr ppaddr
		12	# endif
		13	# ifndef call_sv
		14	# define call_sv perl_call_sv
		15	# endif
		16	# ifndef get_sv
		17	# define get_sv perl_get_sv
		18	# endif
		19	# ifndef get_cv
		20	# define get_cv perl_get_cv
		21	# endif
		22	# ifndef IS_PADGV
		23	# define IS_PADGV(v) 0
		24	# endif
		25	# ifndef IS_PADCONST
		26	# define IS_PADCONST(v) 0
		27	# endif
		28	#endif
		29
5	#include "libcoro/coro.c"	30	#include "libcoro/coro.c"
		31
		32	#include <signal.h>
6		33
7	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
8	# include <unistd.h>	35	# include <unistd.h>
9	# include <sys/mman.h>	36	# include <sys/mman.h>
		37	# ifndef MAP_ANONYMOUS
		38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
		40	# else
		41	# undef HAVE_MMAP
		42	# endif
		43	# endif
10	#endif	44	#endif
11
12	#define MAY_FLUSH /* increases codesize */
13
14	/* perl-related */
15	#define TRANSFER_SAVE_DEFAV 0x00000001
16	#define TRANSFER_SAVE_DEFSV 0x00000002
17	#define TRANSFER_SAVE_ERRSV 0x00000004
18	/* c-related */
19	#define TRANSFER_SAVE_CCTXT 0x00000008
20	#ifdef CORO_LAZY_STACK
21	# define TRANSFER_LAZY_STACK 0x00000010
22	#else
23	# define TRANSFER_LAZY_STACK 0x00000000
24	#endif
25
26	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
27	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
28		45
29	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
30	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
31		48
32	/* 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
33	* 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
34	* and should be unique. */	51	* and should be unique. */
35	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
36		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
37	#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 __thread SV coro_mortal; / will be freed after next transfer */
38		75
39	/* 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... */
40	typedef struct {	77	typedef struct {
41	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
46		83
47	void *sptr;	84	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	86	} coro_stack;
50		87
51	static coro_stack main_stack = { 1, 0, 0 };
52
53	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
54	/* the optional C context */	92	/* the optional C context */
55	coro_stack *stack;	93	coro_stack *stack;
56	void *cursp;	94	void *cursp;
57	int gencnt;	95	int gencnt;
58		96
…		…
61	SV *defsv;	99	SV *defsv;
62	SV *errsv;	100	SV *errsv;
63		101
64	/* saved global state not related to stacks */	102	/* saved global state not related to stacks */
65	U8 dowarn;	103	U8 dowarn;
		104	I32 in_eval;
66		105
67	/* the stacks and related info (callchain etc..) */	106	/* the stacks and related info (callchain etc..) */
68	PERL_SI *curstackinfo;	107	PERL_SI *curstackinfo;
69	AV *curstack;	108	AV *curstack;
70	AV *mainstack;	109	AV *mainstack;
71	SV **stack_sp;	110	SV **stack_sp;
72	OP *op;	111	OP *op;
73	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
74	SV **stack_base;	114	SV **stack_base;
75	SV **stack_max;	115	SV **stack_max;
76	SV **tmps_stack;	116	SV **tmps_stack;
77	I32 tmps_floor;	117	I32 tmps_floor;
78	I32 tmps_ix;	118	I32 tmps_ix;
…		…
88	I32 savestack_max;	128	I32 savestack_max;
89	OP **retstack;	129	OP **retstack;
90	I32 retstack_ix;	130	I32 retstack_ix;
91	I32 retstack_max;	131	I32 retstack_max;
92	COP *curcop;	132	COP *curcop;
93	JMPENV start_env;
94	JMPENV *top_env;	133	JMPENV *top_env;
95		134
96	/* data associated with this coroutine (initial args) */	135	/* data associated with this coroutine (initial args) */
97	AV *args;	136	AV *args;
98	};	137	};
99		138
100	typedef struct coro *Coro__State;	139	typedef struct coro *Coro__State;
101	typedef struct coro *Coro__State_or_hashref;	140	typedef struct coro *Coro__State_or_hashref;
102		141
103	static AV main_mainstack; / used to differentiate between $main and others */
104	static HV *coro_state_stash;
105	static SV *ucoro_state_sv;
106	static U32 ucoro_state_hash;
107	static HV *padlist_cache;
108
109	/* mostly copied from op.c:cv_clone2 */	142	/* mostly copied from op.c:cv_clone2 */
110	STATIC AV *	143	STATIC AV *
111	clone_padlist (AV *protopadlist)	144	clone_padlist (pTHX_ AV *protopadlist)
112	{	145	{
113	AV *av;	146	AV *av;
114	I32 ix;	147	I32 ix;
115	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	148	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
116	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	149	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
140	AvFLAGS (av) = AVf_REIFY;	173	AvFLAGS (av) = AVf_REIFY;
141		174
142	for (ix = fpad; ix > 0; ix--)	175	for (ix = fpad; ix > 0; ix--)
143	{	176	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	177	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		178
145	if (namesv && namesv != &PL_sv_undef)	179	if (namesv && namesv != &PL_sv_undef)
146	{	180	{
147	char name = SvPVX (namesv); / XXX */	181	char name = SvPVX (namesv); / XXX */
		182
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	183	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
149	{ /* lexical from outside? */	184	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);	185	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	186	}
152	else	187	else
…		…
158	sv = (SV *) newAV ();	193	sv = (SV *) newAV ();
159	else if (*name == '%')	194	else if (*name == '%')
160	sv = (SV *) newHV ();	195	sv = (SV *) newHV ();
161	else	196	else
162	sv = NEWSV (0, 0);	197	sv = NEWSV (0, 0);
		198
		199	#ifdef SvPADBUSY
163	if (!SvPADBUSY (sv))	200	if (!SvPADBUSY (sv))
		201	#endif
164	SvPADMY_on (sv);	202	SvPADMY_on (sv);
		203
165	npad[ix] = sv;	204	npad[ix] = sv;
166	}	205	}
167	}	206	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	207	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
169	{	208	{
…		…
198	#endif	237	#endif
199		238
200	return newpadlist;	239	return newpadlist;
201	}	240	}
202		241
203	#ifdef MAY_FLUSH	242	STATIC void
204	STATIC AV *
205	free_padlist (AV *padlist)	243	free_padlist (pTHX_ AV *padlist)
206	{	244	{
207	/* may be during global destruction */	245	/* may be during global destruction */
208	if (SvREFCNT(padlist))	246	if (SvREFCNT (padlist))
209	{	247	{
210	I32 i = AvFILLp(padlist);	248	I32 i = AvFILLp (padlist);
211	while (i >= 0)	249	while (i >= 0)
212	{	250	{
213	SV **svp = av_fetch(padlist, i--, FALSE);	251	SV **svp = av_fetch (padlist, i--, FALSE);
214	SV sv = svp ? svp : Nullsv;
215	if (sv)	252	if (svp)
		253	{
		254	SV *sv;
		255	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
216	SvREFCNT_dec(sv);	256	SvREFCNT_dec (sv);
		257
		258	SvREFCNT_dec (*svp);
		259	}
217	}	260	}
218		261
219	SvREFCNT_dec((SV*)padlist);	262	SvREFCNT_dec ((SV*)padlist);
220	}	263	}
221	}	264	}
222	#endif	265
		266	STATIC int
		267	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		268	{
		269	AV *padlist;
		270	AV av = (AV )mg->mg_obj;
		271
		272	/* casting is fun. */
		273	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		274	free_padlist (aTHX_ padlist);
		275	}
		276
		277	#define PERL_MAGIC_coro PERL_MAGIC_ext
		278
		279	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
223		280
224	/* the next two functions merely cache the padlists */	281	/* the next two functions merely cache the padlists */
225	STATIC void	282	STATIC void
226	get_padlist (CV *cv)	283	get_padlist (pTHX_ CV *cv)
227	{	284	{
228	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	285	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
229		286
230	if (he && AvFILLp ((AV )he) >= 0)	287	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
231	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	288	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
232	else	289	else
233	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	290	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
234	}	291	}
235		292
236	STATIC void	293	STATIC void
237	put_padlist (CV *cv)	294	put_padlist (pTHX_ CV *cv)
238	{	295	{
239	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	296	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
240		297
241	if (SvTYPE (*he) != SVt_PVAV)	298	if (!mg)
242	{	299	{
243	SvREFCNT_dec (*he);	300	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		301	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		302	mg->mg_virtual = &vtbl_coro;
244	he = (SV )newAV ();	303	mg->mg_obj = (SV *)newAV ();
245	}	304	}
246		305
247	av_push ((AV )he, (SV *)CvPADLIST (cv));	306	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	307	}
249
250	#ifdef MAY_FLUSH
251	STATIC void
252	flush_padlist_cache ()
253	{
254	HV *hv = padlist_cache;
255	padlist_cache = newHV ();
256
257	if (hv_iterinit (hv))
258	{
259	HE *he;
260	AV *padlist;
261
262	while (!!(he = hv_iternext (hv)))
263	{
264	AV av = (AV )HeVAL(he);
265
266	/* casting is fun. */
267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
268	free_padlist (padlist);
269	}
270	}
271
272	SvREFCNT_dec (hv);
273	}
274	#endif
275		308
276	#define SB do {	309	#define SB do {
277	#define SE } while (0)	310	#define SE } while (0)
278		311
279	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	312	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	313	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		314
282	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	315	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
283		316
284	static void	317	static void
285	load_state(pTHX_ Coro__State c)	318	load_state(pTHX_ Coro__State c)
286	{	319	{
287	PL_dowarn = c->dowarn;	320	PL_dowarn = c->dowarn;
		321	PL_in_eval = c->in_eval;
288		322
289	PL_curstackinfo = c->curstackinfo;	323	PL_curstackinfo = c->curstackinfo;
290	PL_curstack = c->curstack;	324	PL_curstack = c->curstack;
291	PL_mainstack = c->mainstack;	325	PL_mainstack = c->mainstack;
292	PL_stack_sp = c->stack_sp;	326	PL_stack_sp = c->stack_sp;
293	PL_op = c->op;	327	PL_op = c->op;
294	PL_curpad = c->curpad;	328	PL_curpad = c->curpad;
		329	PL_comppad = c->comppad;
295	PL_stack_base = c->stack_base;	330	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;	331	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;	332	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;	333	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;	334	PL_tmps_ix = c->tmps_ix;
…		…
309	PL_savestack_max = c->savestack_max;	344	PL_savestack_max = c->savestack_max;
310	PL_retstack = c->retstack;	345	PL_retstack = c->retstack;
311	PL_retstack_ix = c->retstack_ix;	346	PL_retstack_ix = c->retstack_ix;
312	PL_retstack_max = c->retstack_max;	347	PL_retstack_max = c->retstack_max;
313	PL_curcop = c->curcop;	348	PL_curcop = c->curcop;
314	PL_start_env = c->start_env;
315	PL_top_env = c->top_env;	349	PL_top_env = c->top_env;
316		350
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	351	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	352	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	353	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
327	{	361	{
328	AV padlist = (AV )POPs;	362	AV padlist = (AV )POPs;
329		363
330	if (padlist)	364	if (padlist)
331	{	365	{
332	put_padlist (cv); /* mark this padlist as available */	366	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvPADLIST(cv) = padlist;	367	CvPADLIST(cv) = padlist;
334	#ifdef USE_THREADS
335	/CvOWNER(cv) = (struct perl_thread )POPs;*/
336	#endif
337	}	368	}
338		369
339	++CvDEPTH(cv);	370	++CvDEPTH(cv);
340	}	371	}
341		372
…		…
359		390
360	PUSHs (Nullsv);	391	PUSHs (Nullsv);
361	/* this loop was inspired by pp_caller */	392	/* this loop was inspired by pp_caller */
362	for (;;)	393	for (;;)
363	{	394	{
364	do	395	while (cxix >= 0)
365	{	396	{
366	PERL_CONTEXT *cx = &ccstk[cxix--];	397	PERL_CONTEXT *cx = &ccstk[cxix--];
367		398
368	if (CxTYPE(cx) == CXt_SUB)	399	if (CxTYPE(cx) == CXt_SUB)
369	{	400	{
370	CV *cv = cx->blk_sub.cv;	401	CV *cv = cx->blk_sub.cv;
371	if (CvDEPTH(cv))	402	if (CvDEPTH(cv))
372	{	403	{
373	#ifdef USE_THREADS
374	/XPUSHs ((SV )CvOWNER(cv));*/
375	/CvOWNER(cv) = 0;/
376	/error must unlock this cv etc.. etc.../
377	#endif
378	EXTEND (SP, CvDEPTH(cv)*2);	404	EXTEND (SP, CvDEPTH(cv)*2);
379		405
380	while (--CvDEPTH(cv))	406	while (--CvDEPTH(cv))
381	{	407	{
382	/* this tells the restore code to increment CvDEPTH */	408	/* this tells the restore code to increment CvDEPTH */
…		…
385	}	411	}
386		412
387	PUSHs ((SV *)CvPADLIST(cv));	413	PUSHs ((SV *)CvPADLIST(cv));
388	PUSHs ((SV *)cv);	414	PUSHs ((SV *)cv);
389		415
390	get_padlist (cv); /* this is a monster */	416	get_padlist (aTHX_ cv); /* this is a monster */
391	}	417	}
392	}	418	}
		419	#ifdef CXt_FORMAT
393	else if (CxTYPE(cx) == CXt_FORMAT)	420	else if (CxTYPE(cx) == CXt_FORMAT)
394	{	421	{
395	/* I never used formats, so how should I know how these are implemented? */	422	/* I never used formats, so how should I know how these are implemented? */
396	/* my bold guess is as a simple, plain sub... */	423	/* my bold guess is as a simple, plain sub... */
397	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	424	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
398	}	425	}
		426	#endif
399	}	427	}
400	while (cxix >= 0);
401		428
402	if (top_si->si_type == PERLSI_MAIN)	429	if (top_si->si_type == PERLSI_MAIN)
403	break;	430	break;
404		431
405	top_si = top_si->si_prev;	432	top_si = top_si->si_prev;
…		…
412		439
413	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	440	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
414	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	441	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
415	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	442	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
416		443
417	/* I have not the slightest idea of why av_reify is necessary */
418	/* but if it's missing the defav contents magically get replaced sometimes */
419	if (c->defav)
420	av_reify (c->defav);
421
422	c->dowarn = PL_dowarn;	444	c->dowarn = PL_dowarn;
		445	c->in_eval = PL_in_eval;
423		446
424	c->curstackinfo = PL_curstackinfo;	447	c->curstackinfo = PL_curstackinfo;
425	c->curstack = PL_curstack;	448	c->curstack = PL_curstack;
426	c->mainstack = PL_mainstack;	449	c->mainstack = PL_mainstack;
427	c->stack_sp = PL_stack_sp;	450	c->stack_sp = PL_stack_sp;
428	c->op = PL_op;	451	c->op = PL_op;
429	c->curpad = PL_curpad;	452	c->curpad = PL_curpad;
		453	c->comppad = PL_comppad;
430	c->stack_base = PL_stack_base;	454	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;	455	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;	456	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;	457	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;	458	c->tmps_ix = PL_tmps_ix;
…		…
444	c->savestack_max = PL_savestack_max;	468	c->savestack_max = PL_savestack_max;
445	c->retstack = PL_retstack;	469	c->retstack = PL_retstack;
446	c->retstack_ix = PL_retstack_ix;	470	c->retstack_ix = PL_retstack_ix;
447	c->retstack_max = PL_retstack_max;	471	c->retstack_max = PL_retstack_max;
448	c->curcop = PL_curcop;	472	c->curcop = PL_curcop;
449	c->start_env = PL_start_env;
450	c->top_env = PL_top_env;	473	c->top_env = PL_top_env;
451	}	474	}
452		475
453	/*	476	/*
454	* allocate various perl stacks. This is an exact copy	477	* allocate various perl stacks. This is an exact copy
455	* of perl.c:init_stacks, except that it uses less memory	478	* of perl.c:init_stacks, except that it uses less memory
456	* on the assumption that coroutines do not usually need	479	* on the (sometimes correct) assumption that coroutines do
457	* a lot of stackspace.	480	* not usually need a lot of stackspace.
458	*/	481	*/
459	STATIC void	482	STATIC void
460	coro_init_stacks (pTHX)	483	coro_init_stacks (pTHX)
461	{	484	{
		485	LOCK;
		486
462	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	487	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
463	PL_curstackinfo->si_type = PERLSI_MAIN;	488	PL_curstackinfo->si_type = PERLSI_MAIN;
464	PL_curstack = PL_curstackinfo->si_stack;	489	PL_curstack = PL_curstackinfo->si_stack;
465	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	490	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
466		491
…		…
475		500
476	New(54,PL_markstack,16,I32);	501	New(54,PL_markstack,16,I32);
477	PL_markstack_ptr = PL_markstack;	502	PL_markstack_ptr = PL_markstack;
478	PL_markstack_max = PL_markstack + 16;	503	PL_markstack_max = PL_markstack + 16;
479		504
		505	#ifdef SET_MARK_OFFSET
480	SET_MARK_OFFSET;	506	SET_MARK_OFFSET;
		507	#endif
481		508
482	New(54,PL_scopestack,16,I32);	509	New(54,PL_scopestack,16,I32);
483	PL_scopestack_ix = 0;	510	PL_scopestack_ix = 0;
484	PL_scopestack_max = 16;	511	PL_scopestack_max = 16;
485		512
…		…
488	PL_savestack_max = 96;	515	PL_savestack_max = 96;
489		516
490	New(54,PL_retstack,8,OP*);	517	New(54,PL_retstack,8,OP*);
491	PL_retstack_ix = 0;	518	PL_retstack_ix = 0;
492	PL_retstack_max = 8;	519	PL_retstack_max = 8;
		520
		521	UNLOCK;
493	}	522	}
494		523
495	/*	524	/*
496	* destroy the stacks, the callchain etc...	525	* destroy the stacks, the callchain etc...
497	* still there is a memleak of 128 bytes...
498	*/	526	*/
499	STATIC void	527	STATIC void
500	destroy_stacks(pTHX)	528	destroy_stacks(pTHX)
501	{	529	{
		530	if (!IN_DESTRUCT)
		531	{
502	/* is this ugly, I ask? */	532	/* is this ugly, I ask? */
503	while (PL_scopestack_ix)	533	LEAVE_SCOPE (0);
504	LEAVE;
505		534
506	/* sure it is, but more important: is it correct?? :/ */	535	/* sure it is, but more important: is it correct?? :/ */
507	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
508	FREETMPS;	536	FREETMPS;
		537
		538	/POPSTACK_TO (PL_mainstack);//D//use/
		539	}
509		540
510	while (PL_curstackinfo->si_next)	541	while (PL_curstackinfo->si_next)
511	PL_curstackinfo = PL_curstackinfo->si_next;	542	PL_curstackinfo = PL_curstackinfo->si_next;
512		543
513	while (PL_curstackinfo)	544	while (PL_curstackinfo)
514	{	545	{
515	PERL_SI *p = PL_curstackinfo->si_prev;	546	PERL_SI *p = PL_curstackinfo->si_prev;
516		547
517	{	548	{ /D//remove/
518	dSP;	549	dSP;
519	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	550	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
520	PUTBACK; /* possibly superfluous */	551	PUTBACK; /* possibly superfluous */
521	}	552	}
522		553
523	dounwind(-1);	554	if (!IN_DESTRUCT)
524		555	{
		556	dounwind (-1);/D//remove/
525	SvREFCNT_dec(PL_curstackinfo->si_stack);	557	SvREFCNT_dec (PL_curstackinfo->si_stack);
		558	}
		559
526	Safefree(PL_curstackinfo->si_cxstack);	560	Safefree (PL_curstackinfo->si_cxstack);
527	Safefree(PL_curstackinfo);	561	Safefree (PL_curstackinfo);
528	PL_curstackinfo = p;	562	PL_curstackinfo = p;
529	}	563	}
530		564
531	Safefree(PL_tmps_stack);	565	Safefree (PL_tmps_stack);
532	Safefree(PL_markstack);	566	Safefree (PL_markstack);
533	Safefree(PL_scopestack);	567	Safefree (PL_scopestack);
534	Safefree(PL_savestack);	568	Safefree (PL_savestack);
535	Safefree(PL_retstack);	569	Safefree (PL_retstack);
536	}	570	}
537		571
538	static void	572	static void
539	allocate_stack (Coro__State ctx, int alloc)	573	allocate_stack (Coro__State ctx, int alloc)
540	{	574	{
…		…
543	New (0, stack, 1, coro_stack);	577	New (0, stack, 1, coro_stack);
544		578
545	stack->refcnt = 1;	579	stack->refcnt = 1;
546	stack->usecnt = 1;	580	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;	581	stack->gencnt = ctx->gencnt = 0;
		582
548	if (alloc)	583	if (alloc)
549	{	584	{
550	#ifdef HAVE_MMAP	585	#if HAVE_MMAP
551	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-use */	586	stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
552	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	587	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
553	if (stack->sptr == (void *)-1)	588	if (stack->sptr == (void *)-1)
554	#endif	589	#endif
555	{	590	{
556	/FIXME//D//* reasonable stack size! */	591	/FIXME//D//* reasonable stack size! */
557	stack->ssize = -4096 * sizeof (long);	592	stack->ssize = - (8192 * sizeof (long));
558	New (0, stack->sptr, 4096, long);	593	New (0, stack->sptr, 8192, long);
559	}	594	}
560	}	595	}
561	else	596	else
562	stack->sptr = 0;	597	stack->sptr = 0;
563		598
…		…
577	{	612	{
578	#ifdef HAVE_MMAP	613	#ifdef HAVE_MMAP
579	if (stack->ssize > 0 && stack->sptr)	614	if (stack->ssize > 0 && stack->sptr)
580	munmap (stack->sptr, stack->ssize);	615	munmap (stack->sptr, stack->ssize);
581	else	616	else
582	#else	617	#endif
583	Safefree (stack->sptr);	618	Safefree (stack->sptr);
584	#endif	619
585	Safefree (stack);	620	Safefree (stack);
586	}	621	}
587	else if (ctx->gencnt == stack->gencnt)	622	else if (ctx->gencnt == stack->gencnt)
588	--stack->usecnt;	623	--stack->usecnt;
589	}	624	}
…		…
593	setup_coro (void *arg)	628	setup_coro (void *arg)
594	{	629	{
595	/*	630	/*
596	* emulate part of the perl startup here.	631	* emulate part of the perl startup here.
597	*/	632	*/
		633	dTHX;
598	dSP;	634	dSP;
599	Coro__State ctx = (Coro__State)arg;	635	Coro__State ctx = (Coro__State)arg;
600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	636	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
601		637
602	coro_init_stacks (aTHX);	638	coro_init_stacks (aTHX);
603	JMPENV_BOOTSTRAP;	639	/PL_curcop = 0;/
		640	/PL_in_eval = PL_in_eval;/ /* inherit */
		641	SvREFCNT_dec (GvAV (PL_defgv));
		642	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
		643
604	SPAGAIN;	644	SPAGAIN;
605
606	/PL_curcop = 0;/
607	SvREFCNT_dec (GvAV (PL_defgv));
608	GvAV (PL_defgv) = ctx->args;
609		645
610	if (ctx->stack)	646	if (ctx->stack)
611	{	647	{
612	ctx->cursp = 0;	648	ctx->cursp = 0;
613		649
614	PUSHMARK(SP);	650	PUSHMARK(SP);
615	PUTBACK;	651	PUTBACK;
616	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	652	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		653
		654	if (SvTRUE (ERRSV))
		655	croak (NULL);
		656	else
617	croak ("FATAL: CCTXT coroutine returned!");	657	croak ("FATAL: CCTXT coroutine returned!");
618	}	658	}
619	else	659	else
620	{	660	{
621	UNOP myop;	661	UNOP myop;
622		662
…		…
634	* that doesn't matter, though, since it is only	674	* that doesn't matter, though, since it is only
635	* pp_nextstate and we never return...	675	* pp_nextstate and we never return...
636	* ah yes, and I don't care anyways ;)	676	* ah yes, and I don't care anyways ;)
637	*/	677	*/
638	PUTBACK;	678	PUTBACK;
639	PL_op = pp_entersub();	679	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
640	SPAGAIN;	680	SPAGAIN;
641		681
642	ENTER; /* necessary e.g. for dounwind */	682	ENTER; /* necessary e.g. for dounwind */
643	}	683	}
644	}	684	}
…		…
647	continue_coro (void *arg)	687	continue_coro (void *arg)
648	{	688	{
649	/*	689	/*
650	* this is a _very_ stripped down perl interpreter ;)	690	* this is a _very_ stripped down perl interpreter ;)
651	*/	691	*/
		692	dTHX;
652	Coro__State ctx = (Coro__State)arg;	693	Coro__State ctx = (Coro__State)arg;
		694	JMPENV coro_start_env;
		695
		696	PL_top_env = &ctx->start_env;
653		697
654	ctx->cursp = 0;	698	ctx->cursp = 0;
655	PL_op = PL_op->op_next;	699	PL_op = PL_op->op_next;
656	CALLRUNOPS(aTHX);	700	CALLRUNOPS(aTHX);
657	/NORETURN/	701
658	abort ();	702	abort ();
659	}	703	}
660		704
661	STATIC void	705	STATIC void
662	transfer(pTHX_ struct coro prev, struct coro next, int flags)	706	transfer (pTHX_ struct coro prev, struct coro next, int flags)
663	{	707	{
664	dSP;
665	dSTACKLEVEL;	708	dSTACKLEVEL;
666		709
667	if (prev != next)	710	if (prev != next)
668	{	711	{
669	if (next->mainstack)	712	if (next->mainstack)
670	{	713	{
		714	LOCK;
671	SAVE (prev, flags);	715	SAVE (prev, flags);
672	LOAD (next);	716	LOAD (next);
		717	UNLOCK;
673		718
674	/* mark this state as in-use */	719	/* mark this state as in-use */
675	next->mainstack = 0;	720	next->mainstack = 0;
676	next->tmps_ix = -2;	721	next->tmps_ix = -2;
677		722
…		…
696	continue_coro, (void *)next,	741	continue_coro, (void *)next,
697	next->stack->sptr, labs (next->stack->ssize));	742	next->stack->sptr, labs (next->stack->ssize));
698	}	743	}
699		744
700	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	745	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		746	prev->cursp = stacklevel;
		747	/* don't add any code here */
701	}	748	}
702		749	else
		750	next->cursp = stacklevel;
703	}	751	}
704	else if (next->tmps_ix == -2)	752	else if (next->tmps_ix == -2)
705	croak ("tried to transfer to running coroutine");	753	croak ("tried to transfer to running coroutine");
706	else	754	else
707	{	755	{
		756	LOCK;
708	SAVE (prev, -1); /* first get rid of the old state */	757	SAVE (prev, -1); /* first get rid of the old state */
		758	UNLOCK;
709		759
710	if (flags & TRANSFER_SAVE_CCTXT)	760	if (flags & TRANSFER_SAVE_CCTXT)
711	{	761	{
712	if (!prev->stack)	762	if (!prev->stack)
713	allocate_stack (prev, 0);	763	allocate_stack (prev, 0);
714		764
715	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	765	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
716	{	766	{
		767	PL_top_env = &next->start_env;
		768
717	setup_coro (next);	769	setup_coro (next);
		770	next->cursp = stacklevel;
718		771
719	prev->stack->refcnt++;	772	prev->stack->refcnt++;
720	prev->stack->usecnt++;	773	prev->stack->usecnt++;
721	next->stack = prev->stack;	774	next->stack = prev->stack;
722	next->gencnt = prev->gencnt;	775	next->gencnt = prev->gencnt;
723	}	776	}
724	else	777	else
725	{	778	{
		779	assert (!next->stack);
726	allocate_stack (next, 1);	780	allocate_stack (next, 1);
727	coro_create (&(next->stack->cctx),	781	coro_create (&(next->stack->cctx),
728	setup_coro, (void *)next,	782	setup_coro, (void *)next,
729	next->stack->sptr, labs (next->stack->ssize));	783	next->stack->sptr, labs (next->stack->ssize));
730	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	784	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		785	prev->cursp = stacklevel;
		786	/* don't add any code here */
731	}	787	}
732	}	788	}
733	else	789	else
		790	{
734	setup_coro (next);	791	setup_coro (next);
		792	next->cursp = stacklevel;
		793	}
735	}	794	}
736	}	795	}
737		796
738	next->cursp = stacklevel;	797	LOCK;
		798	if (coro_mortal)
		799	{
		800	SvREFCNT_dec (coro_mortal);
		801	coro_mortal = 0;
		802	}
		803	UNLOCK;
		804	}
		805
		806	#define SV_CORO(sv,func) \
		807	do { \
		808	if (SvROK (sv)) \
		809	sv = SvRV (sv); \
		810	\
		811	if (SvTYPE (sv) == SVt_PVHV) \
		812	{ \
		813	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		814	\
		815	if (!he) \
		816	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		817	\
		818	(sv) = SvRV (HeVAL(he)); \
		819	} \
		820	\
		821	/* must also be changed inside Coro::Cont::yield */ \
		822	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
		823	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		824	\
		825	} while(0)
		826
		827	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		828
		829	static void
		830	api_transfer(pTHX_ SV prev, SV next, int flags)
		831	{
		832	SV_CORO (prev, "Coro::transfer");
		833	SV_CORO (next, "Coro::transfer");
		834
		835	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		836	}
		837
		838	/ Coro ******************************************************************/
		839
		840	#define PRIO_MAX 3
		841	#define PRIO_HIGH 1
		842	#define PRIO_NORMAL 0
		843	#define PRIO_LOW -1
		844	#define PRIO_IDLE -3
		845	#define PRIO_MIN -4
		846
		847	/* for Coro.pm */
		848	static GV coro_current, coro_idle;
		849	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		850	static int coro_nready;
		851
		852	static void
		853	coro_enq (pTHX_ SV *sv)
		854	{
		855	if (SvTYPE (sv) == SVt_PVHV)
		856	{
		857	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		858	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		859
		860	prio = prio > PRIO_MAX ? PRIO_MAX
		861	: prio < PRIO_MIN ? PRIO_MIN
		862	: prio;
		863
		864	av_push (coro_ready [prio - PRIO_MIN], sv);
		865	coro_nready++;
		866
		867	return;
		868	}
		869
		870	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		871	}
		872
		873	static SV *
		874	coro_deq (pTHX_ int min_prio)
		875	{
		876	int prio = PRIO_MAX - PRIO_MIN;
		877
		878	min_prio -= PRIO_MIN;
		879	if (min_prio < 0)
		880	min_prio = 0;
		881
		882	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		883	if (av_len (coro_ready[prio]) >= 0)
		884	{
		885	coro_nready--;
		886	return av_shift (coro_ready[prio]);
		887	}
		888
		889	return 0;
		890	}
		891
		892	static void
		893	api_ready (SV *coro)
		894	{
		895	dTHX;
		896
		897	if (SvROK (coro))
		898	coro = SvRV (coro);
		899
		900	LOCK;
		901	coro_enq (aTHX_ SvREFCNT_inc (coro));
		902	UNLOCK;
		903	}
		904
		905	static void
		906	api_schedule (void)
		907	{
		908	dTHX;
		909
		910	SV prev, next;
		911
		912	LOCK;
		913
		914	prev = SvRV (GvSV (coro_current));
		915	next = coro_deq (aTHX_ PRIO_MIN);
		916
		917	if (!next)
		918	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		919
		920	/* free this only after the transfer */
		921	coro_mortal = prev;
		922	SV_CORO (prev, "Coro::schedule");
		923
		924	SvRV (GvSV (coro_current)) = next;
		925
		926	SV_CORO (next, "Coro::schedule");
		927
		928	UNLOCK;
		929
		930	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		931	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		932	}
		933
		934	static void
		935	api_cede (void)
		936	{
		937	dTHX;
		938
		939	LOCK;
		940	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		941	UNLOCK;
		942
		943	api_schedule ();
739	}	944	}
740		945
741	MODULE = Coro::State PACKAGE = Coro::State	946	MODULE = Coro::State PACKAGE = Coro::State
742		947
743	PROTOTYPES: ENABLE	948	PROTOTYPES: ENABLE
744		949
745	BOOT:	950	BOOT:
746	{ /* {} necessary for stoopid perl-5.6.x */	951	{ /* {} necessary for stoopid perl-5.6.x */
		952	#ifdef USE_ITHREADS
		953	MUTEX_INIT (&coro_mutex);
		954	#endif
		955
747	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	956	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
748	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	957	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
749	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	958	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
750		959
751	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	960	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
752	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	961	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
753	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	962	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
754	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	963	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
755		964
756	if (!padlist_cache)
757	padlist_cache = newHV ();
758
759	main_mainstack = PL_mainstack;	965	main_mainstack = PL_mainstack;
		966
		967	coroapi.ver = CORO_API_VERSION;
		968	coroapi.transfer = api_transfer;
760	}	969	}
761		970
762	Coro::State	971	Coro::State
763	_newprocess(args)	972	_newprocess(args)
764	SV * args	973	SV * args
…		…
767	Coro__State coro;	976	Coro__State coro;
768		977
769	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	978	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
770	croak ("Coro::State::_newprocess expects an arrayref");	979	croak ("Coro::State::_newprocess expects an arrayref");
771		980
772	New (0, coro, 1, struct coro);	981	Newz (0, coro, 1, struct coro);
773		982
774	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	983	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
775	coro->mainstack = 0; /* actual work is done inside transfer */	984	coro->mainstack = 0; /* actual work is done inside transfer */
776	coro->stack = 0;	985	coro->stack = 0;
777		986
		987	/* same as JMPENV_BOOTSTRAP */
		988	/* we might be able to recycle start_env, but safe is safe */
		989	//Zero(&coro->start_env, 1, JMPENV);
		990	coro->start_env.je_ret = -1;
		991	coro->start_env.je_mustcatch = TRUE;
		992
778	RETVAL = coro;	993	RETVAL = coro;
779	OUTPUT:	994	OUTPUT:
780	RETVAL	995	RETVAL
781		996
782	void	997	void
783	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	998	transfer(prev, next, flags)
784	Coro::State_or_hashref prev	999	SV *prev
785	Coro::State_or_hashref next	1000	SV *next
786	int flags	1001	int flags
787	PROTOTYPE: @	1002	PROTOTYPE: @
788	CODE:	1003	CODE:
		1004	PUTBACK;
		1005	SV_CORO (next, "Coro::transfer");
		1006	SV_CORO (prev, "Coro::transfer");
789	transfer (aTHX_ prev, next, flags);	1007	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		1008	SPAGAIN;
790		1009
791	void	1010	void
792	DESTROY(coro)	1011	DESTROY(coro)
793	Coro::State coro	1012	Coro::State coro
794	CODE:	1013	CODE:
795		1014
796	if (coro->mainstack && coro->mainstack != main_mainstack)	1015	if (coro->mainstack && coro->mainstack != main_mainstack)
797	{	1016	{
798	struct coro temp;	1017	struct coro temp;
799		1018
		1019	PUTBACK;
800	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1020	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);
801	LOAD(aTHX_ coro);	1021	LOAD(aTHX_ coro);
		1022	SPAGAIN;
802		1023
803	destroy_stacks (aTHX);	1024	destroy_stacks (aTHX);
804		1025
805	LOAD((&temp)); /* this will get rid of defsv etc.. */	1026	LOAD((&temp)); /* this will get rid of defsv etc.. */
		1027	SPAGAIN;
806		1028
807	coro->mainstack = 0;	1029	coro->mainstack = 0;
808	}	1030	}
809		1031
810	deallocate_stack (coro);	1032	deallocate_stack (coro);
811		1033	SvREFCNT_dec (coro->args);
812	Safefree (coro);	1034	Safefree (coro);
813		1035
814	void	1036	void
815	flush()	1037	_exit(code)
		1038	int code
		1039	PROTOTYPE: $
816	CODE:	1040	CODE:
817	#ifdef MAY_FLUSH	1041	_exit (code);
818	flush_padlist_cache ();
819	#endif
820		1042
821	MODULE = Coro::State PACKAGE = Coro::Cont	1043	MODULE = Coro::State PACKAGE = Coro::Cont
822		1044
823	# this is slightly dirty	1045	# this is slightly dirty (should expose a c-level api)
824		1046
825	void	1047	void
826	yield(...)	1048	yield(...)
827	PROTOTYPE: @	1049	PROTOTYPE: @
828	CODE:	1050	CODE:
…		…
830	SV *sv;	1052	SV *sv;
831	AV *defav = GvAV (PL_defgv);	1053	AV *defav = GvAV (PL_defgv);
832	struct coro prev, next;	1054	struct coro prev, next;
833		1055
834	if (!returnstk)	1056	if (!returnstk)
835	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1057	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
836		1058
837	/* set up @_ -- ugly */	1059	/* set up @_ -- ugly */
838	av_clear (defav);	1060	av_clear (defav);
839	av_fill (defav, items - 1);	1061	av_fill (defav, items - 1);
840	while (items--)	1062	while (items--)
…		…
846	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1068	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
847	SvREFCNT_dec (sv);	1069	SvREFCNT_dec (sv);
848		1070
849	transfer(aTHX_ prev, next, 0);	1071	transfer(aTHX_ prev, next, 0);
850		1072
		1073	MODULE = Coro::State PACKAGE = Coro
		1074
		1075	# this is slightly dirty (should expose a c-level api)
		1076
		1077	BOOT:
		1078	{
		1079	int i;
		1080	HV *stash = gv_stashpv ("Coro", TRUE);
		1081
		1082	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1083	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1084	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1085	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1086	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1087	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1088
		1089	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1090	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1091
		1092	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1093	coro_ready[i] = newAV ();
		1094
		1095	{
		1096	SV *sv = perl_get_sv("Coro::API", 1);
		1097
		1098	coroapi.schedule = api_schedule;
		1099	coroapi.cede = api_cede;
		1100	coroapi.ready = api_ready;
		1101	coroapi.nready = &coro_nready;
		1102	coroapi.current = coro_current;
		1103
		1104	GCoroAPI = &coroapi;
		1105	sv_setiv(sv, (IV)&coroapi);
		1106	SvREADONLY_on(sv);
		1107	}
		1108	}
		1109
		1110	#if !PERL_MICRO
		1111
		1112	void
		1113	ready(self)
		1114	SV * self
		1115	PROTOTYPE: $
		1116	CODE:
		1117	api_ready (self);
		1118
		1119	#endif
		1120
		1121	int
		1122	nready(...)
		1123	PROTOTYPE:
		1124	CODE:
		1125	RETVAL = coro_nready;
		1126	OUTPUT:
		1127	RETVAL
		1128
		1129	void
		1130	schedule(...)
		1131	PROTOTYPE:
		1132	CODE:
		1133	api_schedule ();
		1134
		1135	void
		1136	cede(...)
		1137	PROTOTYPE:
		1138	CODE:
		1139	api_cede ();
		1140

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.15 by root, Wed Jul 25 04:14:38 2001 UTC vs. Revision 1.57 by pcg, Thu Apr 22 04:14:49 2004 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.15 by root, Wed Jul 25 04:14:38 2001 UTC vs.
Revision 1.57 by pcg, Thu Apr 22 04:14:49 2004 UTC