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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.37 by root, Tue Oct 9 00:39:11 2001 UTC vs.
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
		3	#include "libcoro/coro.c"
		4
1	#include "EXTERN.h"	5	#include "EXTERN.h"
2	#include "perl.h"	6	#include "perl.h"
3	#include "XSUB.h"	7	#include "XSUB.h"
4		8
5	#include "libcoro/coro.c"	9	#include "patchlevel.h"
6		10
		11	#if PERL_VERSION < 6
		12	# ifndef PL_ppaddr
		13	# define PL_ppaddr ppaddr
		14	# endif
		15	# ifndef call_sv
		16	# define call_sv perl_call_sv
		17	# endif
		18	# ifndef get_sv
		19	# define get_sv perl_get_sv
		20	# endif
		21	# ifndef get_cv
		22	# define get_cv perl_get_cv
		23	# endif
		24	# ifndef IS_PADGV
		25	# define IS_PADGV(v) 0
		26	# endif
		27	# ifndef IS_PADCONST
		28	# define IS_PADCONST(v) 0
		29	# endif
		30	#endif
		31
7	#include <signal.h>	32	#include <errno.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_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
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 and is rarely used */
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 declare 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
…		…
32		55
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		57
35	#include "CoroAPI.h"	58	#include "CoroAPI.h"
36		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 (void)0
		66	# define UNLOCK (void)0
		67	#endif
		68
37	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 */
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 */
…		…
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	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
52	/* the optional C context */	92	/* the optional C context */
53	coro_stack *stack;	93	coro_stack *stack;
54	void *cursp;	94	void *cursp;
55	int gencnt;	95	int gencnt;
56		96
…		…
68	AV *curstack;	108	AV *curstack;
69	AV *mainstack;	109	AV *mainstack;
70	SV **stack_sp;	110	SV **stack_sp;
71	OP *op;	111	OP *op;
72	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
73	SV **stack_base;	115	SV **stack_base;
74	SV **stack_max;	116	SV **stack_max;
75	SV **tmps_stack;	117	SV **tmps_stack;
76	I32 tmps_floor;	118	I32 tmps_floor;
77	I32 tmps_ix;	119	I32 tmps_ix;
…		…
86	I32 savestack_ix;	128	I32 savestack_ix;
87	I32 savestack_max;	129	I32 savestack_max;
88	OP **retstack;	130	OP **retstack;
89	I32 retstack_ix;	131	I32 retstack_ix;
90	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
91	COP *curcop;	134	COP *curcop;
92	JMPENV *top_env;	135	JMPENV *top_env;
93		136
94	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
95	AV *args;	138	AV *args;
96	};	139	};
97		140
98	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
100		143
101	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV *coro_state_stash;
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106
107	/* mostly copied from op.c:cv_clone2 */	144	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *	145	STATIC AV *
109	clone_padlist (AV *protopadlist)	146	clone_padlist (pTHX_ AV *protopadlist)
110	{	147	{
111	AV *av;	148	AV *av;
112	I32 ix;	149	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
133	av_store (newpadlist, 1, (SV *) newpad);	170	av_store (newpadlist, 1, (SV *) newpad);
134		171
135	av = newAV (); /* will be @_ */	172	av = newAV (); /* will be @_ */
136	av_extend (av, 0);	173	av_extend (av, 0);
137	av_store (newpad, 0, (SV *) av);	174	av_store (newpad, 0, (SV *) av);
138	AvFLAGS (av) = AVf_REIFY;	175	AvREIFY_on (av);
139		176
140	for (ix = fpad; ix > 0; ix--)	177	for (ix = fpad; ix > 0; ix--)
141	{	178	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		180
143	if (namesv && namesv != &PL_sv_undef)	181	if (namesv && namesv != &PL_sv_undef)
144	{	182	{
145	char name = SvPVX (namesv); / XXX */	183	char name = SvPVX (namesv); / XXX */
		184
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
147	{ /* lexical from outside? */	186	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);	187	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	188	}
150	else	189	else
…		…
156	sv = (SV *) newAV ();	195	sv = (SV *) newAV ();
157	else if (*name == '%')	196	else if (*name == '%')
158	sv = (SV *) newHV ();	197	sv = (SV *) newHV ();
159	else	198	else
160	sv = NEWSV (0, 0);	199	sv = NEWSV (0, 0);
		200
		201	#ifdef SvPADBUSY
161	if (!SvPADBUSY (sv))	202	if (!SvPADBUSY (sv))
		203	#endif
162	SvPADMY_on (sv);	204	SvPADMY_on (sv);
		205
163	npad[ix] = sv;	206	npad[ix] = sv;
164	}	207	}
165	}	208	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
167	{	210	{
…		…
196	#endif	239	#endif
197		240
198	return newpadlist;	241	return newpadlist;
199	}	242	}
200		243
201	#ifdef MAY_FLUSH
202	STATIC void	244	STATIC void
203	free_padlist (AV *padlist)	245	free_padlist (pTHX_ AV *padlist)
204	{	246	{
205	/* may be during global destruction */	247	/* may be during global destruction */
206	if (SvREFCNT(padlist))	248	if (SvREFCNT (padlist))
207	{	249	{
208	I32 i = AvFILLp(padlist);	250	I32 i = AvFILLp (padlist);
209	while (i >= 0)	251	while (i >= 0)
210	{	252	{
211	SV **svp = av_fetch(padlist, i--, FALSE);	253	SV **svp = av_fetch (padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)	254	if (svp)
		255	{
		256	SV *sv;
		257	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
214	SvREFCNT_dec(sv);	258	SvREFCNT_dec (sv);
		259
		260	SvREFCNT_dec (*svp);
		261	}
215	}	262	}
216		263
217	SvREFCNT_dec((SV*)padlist);	264	SvREFCNT_dec ((SV*)padlist);
218	}	265	}
219	}	266	}
220	#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	return 0;
		281	}
		282
		283	#define PERL_MAGIC_coro PERL_MAGIC_ext
		284
		285	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221		286
222	/* the next two functions merely cache the padlists */	287	/* the next two functions merely cache the padlists */
223	STATIC void	288	STATIC void
224	get_padlist (CV *cv)	289	get_padlist (pTHX_ CV *cv)
225	{	290	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	291	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
227		292
228	if (he && AvFILLp ((AV )he) >= 0)	293	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	294	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
230	else	295	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	296	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232	}	297	}
233		298
234	STATIC void	299	STATIC void
235	put_padlist (CV *cv)	300	put_padlist (pTHX_ CV *cv)
236	{	301	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	302	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
238		303
239	if (SvTYPE (*he) != SVt_PVAV)	304	if (!mg)
240	{	305	{
241	SvREFCNT_dec (*he);	306	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		307	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		308	mg->mg_virtual = &vtbl_coro;
242	he = (SV )newAV ();	309	mg->mg_obj = (SV *)newAV ();
243	}	310	}
244		311
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	312	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	313	}
247
248	#ifdef MAY_FLUSH
249	STATIC void
250	flush_padlist_cache ()
251	{
252	HV *hv = padlist_cache;
253	padlist_cache = newHV ();
254
255	if (hv_iterinit (hv))
256	{
257	HE *he;
258	AV *padlist;
259
260	while (!!(he = hv_iternext (hv)))
261	{
262	AV av = (AV )HeVAL(he);
263
264	/* casting is fun. */
265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
266	free_padlist (padlist);
267	}
268	}
269
270	SvREFCNT_dec (hv);
271	}
272	#endif
273		314
274	#define SB do {	315	#define SB do {
275	#define SE } while (0)	316	#define SE } while (0)
276		317
277	#define LOAD(state) load_state(aTHX_ (state));	318	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	319	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		320
280	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	321	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281		322
282	static void	323	static void
283	load_state(pTHX_ Coro__State c)	324	load_state(pTHX_ Coro__State c)
284	{	325	{
285	PL_dowarn = c->dowarn;	326	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	330	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	331	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	332	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	333	PL_op = c->op;
293	PL_curpad = c->curpad;	334	PL_curpad = c->curpad;
		335	PL_comppad = c->comppad;
		336	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	337	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	338	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	339	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	340	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	341	PL_tmps_ix = c->tmps_ix;
…		…
304	PL_scopestack_ix = c->scopestack_ix;	347	PL_scopestack_ix = c->scopestack_ix;
305	PL_scopestack_max = c->scopestack_max;	348	PL_scopestack_max = c->scopestack_max;
306	PL_savestack = c->savestack;	349	PL_savestack = c->savestack;
307	PL_savestack_ix = c->savestack_ix;	350	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	351	PL_savestack_max = c->savestack_max;
		352	#if PERL_VERSION < 9
309	PL_retstack = c->retstack;	353	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	354	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	355	PL_retstack_max = c->retstack_max;
		356	#endif
		357	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	358	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	359	PL_top_env = c->top_env;
314		360
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	361	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	362	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	371	{
326	AV padlist = (AV )POPs;	372	AV padlist = (AV )POPs;
327		373
328	if (padlist)	374	if (padlist)
329	{	375	{
330	put_padlist (cv); /* mark this padlist as available */	376	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	377	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	378	}
336		379
337	++CvDEPTH(cv);	380	++CvDEPTH(cv);
338	}	381	}
339		382
…		…
366	if (CxTYPE(cx) == CXt_SUB)	409	if (CxTYPE(cx) == CXt_SUB)
367	{	410	{
368	CV *cv = cx->blk_sub.cv;	411	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	412	if (CvDEPTH(cv))
370	{	413	{
371	#ifdef USE_THREADS
372	/XPUSHs ((SV )CvOWNER(cv));*/
373	/CvOWNER(cv) = 0;/
374	/error must unlock this cv etc.. etc.../
375	#endif
376	EXTEND (SP, CvDEPTH(cv)*2);	414	EXTEND (SP, CvDEPTH(cv)*2);
377		415
378	while (--CvDEPTH(cv))	416	while (--CvDEPTH(cv))
379	{	417	{
380	/* this tells the restore code to increment CvDEPTH */	418	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	421	}
384		422
385	PUSHs ((SV *)CvPADLIST(cv));	423	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	424	PUSHs ((SV *)cv);
387		425
388	get_padlist (cv); /* this is a monster */	426	get_padlist (aTHX_ cv); /* this is a monster */
389	}	427	}
390	}	428	}
		429	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	430	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	431	{
393	/* I never used formats, so how should I know how these are implemented? */	432	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	433	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	434	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	435	}
		436	#endif
397	}	437	}
398		438
399	if (top_si->si_type == PERLSI_MAIN)	439	if (top_si->si_type == PERLSI_MAIN)
400	break;	440	break;
401		441
…		…
418	c->curstack = PL_curstack;	458	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	459	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	460	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	461	c->op = PL_op;
422	c->curpad = PL_curpad;	462	c->curpad = PL_curpad;
		463	c->comppad = PL_comppad;
		464	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	465	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	466	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	467	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	468	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	469	c->tmps_ix = PL_tmps_ix;
…		…
433	c->scopestack_ix = PL_scopestack_ix;	475	c->scopestack_ix = PL_scopestack_ix;
434	c->scopestack_max = PL_scopestack_max;	476	c->scopestack_max = PL_scopestack_max;
435	c->savestack = PL_savestack;	477	c->savestack = PL_savestack;
436	c->savestack_ix = PL_savestack_ix;	478	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	479	c->savestack_max = PL_savestack_max;
		480	#if PERL_VERSION < 9
438	c->retstack = PL_retstack;	481	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	482	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	483	c->retstack_max = PL_retstack_max;
		484	#endif
		485	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	486	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	487	c->top_env = PL_top_env;
443	}	488	}
444		489
445	/*	490	/*
446	* allocate various perl stacks. This is an exact copy	491	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	492	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	493	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	494	* not usually need a lot of stackspace.
450	*/	495	*/
451	STATIC void	496	STATIC void
452	coro_init_stacks (pTHX)	497	coro_init_stacks (pTHX)
453	{	498	{
		499	LOCK;
		500
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	501	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	502	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	503	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		505
…		…
467		514
468	New(54,PL_markstack,16,I32);	515	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	516	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	517	PL_markstack_max = PL_markstack + 16;
471		518
		519	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	520	SET_MARK_OFFSET;
		521	#endif
473		522
474	New(54,PL_scopestack,16,I32);	523	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	524	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	525	PL_scopestack_max = 16;
477		526
478	New(54,PL_savestack,96,ANY);	527	New(54,PL_savestack,96,ANY);
479	PL_savestack_ix = 0;	528	PL_savestack_ix = 0;
480	PL_savestack_max = 96;	529	PL_savestack_max = 96;
481		530
		531	#if PERL_VERSION < 9
482	New(54,PL_retstack,8,OP*);	532	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	533	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	534	PL_retstack_max = 8;
		535	#endif
		536
		537	UNLOCK;
485	}	538	}
486		539
487	/*	540	/*
488	* destroy the stacks, the callchain etc...	541	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	542	*/
491	STATIC void	543	STATIC void
492	destroy_stacks(pTHX)	544	destroy_stacks(pTHX)
493	{	545	{
494	if (!IN_DESTRUCT)	546	if (!IN_DESTRUCT)
495	{	547	{
496	/* is this ugly, I ask? */	548	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	549	LEAVE_SCOPE (0);
498	LEAVE;
499		550
500	/* sure it is, but more important: is it correct?? :/ */	551	/* sure it is, but more important: is it correct?? :/ */
501	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
502	FREETMPS;	552	FREETMPS;
		553
		554	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	555	}
504		556
505	while (PL_curstackinfo->si_next)	557	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	558	PL_curstackinfo = PL_curstackinfo->si_next;
507		559
508	while (PL_curstackinfo)	560	while (PL_curstackinfo)
509	{	561	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	562	PERL_SI *p = PL_curstackinfo->si_prev;
511		563
512	{	564	{ /D//remove/
513	dSP;	565	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	566	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	567	PUTBACK; /* possibly superfluous */
516	}	568	}
517		569
518	if (!IN_DESTRUCT)	570	if (!IN_DESTRUCT)
519	{	571	{
520	dounwind(-1);	572	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	573	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	574	}
523		575
524	Safefree(PL_curstackinfo->si_cxstack);	576	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	577	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	578	PL_curstackinfo = p;
527	}	579	}
528		580
529	Safefree(PL_tmps_stack);	581	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	582	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	583	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	584	Safefree (PL_savestack);
		585	#if PERL_VERSION < 9
533	Safefree(PL_retstack);	586	Safefree (PL_retstack);
		587	#endif
534	}	588	}
535		589
536	static void	590	static void
537	allocate_stack (Coro__State ctx, int alloc)	591	allocate_stack (Coro__State ctx, int alloc)
538	{	592	{
…		…
541	New (0, stack, 1, coro_stack);	595	New (0, stack, 1, coro_stack);
542		596
543	stack->refcnt = 1;	597	stack->refcnt = 1;
544	stack->usecnt = 1;	598	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	599	stack->gencnt = ctx->gencnt = 0;
		600
546	if (alloc)	601	if (alloc)
547	{	602	{
548	#if HAVE_MMAP	603	#if HAVE_MMAP
549	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	604	stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */
550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	605	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr == (void *)-1)	606	if (stack->sptr == (void *)-1)
552	#endif	607	#endif
553	{	608	{
554	/FIXME//D//* reasonable stack size! */
555	stack->ssize = -4096 * sizeof (long);	609	stack->ssize = - (STACKSIZE * (long)sizeof (long));
556	New (0, stack->sptr, 4096, long);	610	New (0, stack->sptr, STACKSIZE, long);
557	}	611	}
558	}	612	}
559	else	613	else
560	stack->sptr = 0;	614	stack->sptr = 0;
561		615
…		…
575	{	629	{
576	#ifdef HAVE_MMAP	630	#ifdef HAVE_MMAP
577	if (stack->ssize > 0 && stack->sptr)	631	if (stack->ssize > 0 && stack->sptr)
578	munmap (stack->sptr, stack->ssize);	632	munmap (stack->sptr, stack->ssize);
579	else	633	else
580	#else	634	#endif
581	Safefree (stack->sptr);	635	Safefree (stack->sptr);
582	#endif	636
583	Safefree (stack);	637	Safefree (stack);
584	}	638	}
585	else if (ctx->gencnt == stack->gencnt)	639	else if (ctx->gencnt == stack->gencnt)
586	--stack->usecnt;	640	--stack->usecnt;
587	}	641	}
…		…
591	setup_coro (void *arg)	645	setup_coro (void *arg)
592	{	646	{
593	/*	647	/*
594	* emulate part of the perl startup here.	648	* emulate part of the perl startup here.
595	*/	649	*/
		650	dTHX;
596	dSP;	651	dSP;
597	Coro__State ctx = (Coro__State)arg;	652	Coro__State ctx = (Coro__State)arg;
598	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	653	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
599		654
600	coro_init_stacks (aTHX);	655	coro_init_stacks (aTHX);
601	/PL_curcop = 0;/	656	/PL_curcop = 0;/
602	/PL_in_eval = PL_in_eval;/ /* inherit */	657	/PL_in_eval = PL_in_eval;/ /* inherit */
603	SvREFCNT_dec (GvAV (PL_defgv));	658	SvREFCNT_dec (GvAV (PL_defgv));
604	GvAV (PL_defgv) = ctx->args;	659	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605		660
606	SPAGAIN;	661	SPAGAIN;
607		662
608	if (ctx->stack)	663	if (ctx->stack)
609	{	664	{
…		…
636	* that doesn't matter, though, since it is only	691	* that doesn't matter, though, since it is only
637	* pp_nextstate and we never return...	692	* pp_nextstate and we never return...
638	* ah yes, and I don't care anyways ;)	693	* ah yes, and I don't care anyways ;)
639	*/	694	*/
640	PUTBACK;	695	PUTBACK;
641	PL_op = pp_entersub();	696	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642	SPAGAIN;	697	SPAGAIN;
643		698
644	ENTER; /* necessary e.g. for dounwind */	699	ENTER; /* necessary e.g. for dounwind */
645	}	700	}
646	}	701	}
…		…
649	continue_coro (void *arg)	704	continue_coro (void *arg)
650	{	705	{
651	/*	706	/*
652	* this is a _very_ stripped down perl interpreter ;)	707	* this is a _very_ stripped down perl interpreter ;)
653	*/	708	*/
		709	dTHX;
654	Coro__State ctx = (Coro__State)arg;	710	Coro__State ctx = (Coro__State)arg;
655	JMPENV coro_start_env;
656		711
657	/* same as JMPENV_BOOTSTRAP */
658	Zero(&coro_start_env, 1, JMPENV);
659	coro_start_env.je_ret = -1;
660	coro_start_env.je_mustcatch = TRUE;
661	PL_top_env = &coro_start_env;	712	PL_top_env = &ctx->start_env;
662		713
663	ctx->cursp = 0;	714	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	715	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	716	CALLRUNOPS(aTHX);
666		717
667	abort ();	718	abort ();
668	}	719	}
669		720
670	STATIC void	721	STATIC void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	722	transfer (pTHX_ struct coro prev, struct coro next, int flags)
672	{	723	{
673	dSTACKLEVEL;	724	dSTACKLEVEL;
674	static struct coro *xnext;
675		725
676	if (prev != next)	726	if (prev != next)
677	{	727	{
678	xnext = next;
679
680	if (next->mainstack)	728	if (next->mainstack)
681	{	729	{
		730	LOCK;
682	SAVE (prev, flags);	731	SAVE (prev, flags);
683	LOAD (next);	732	LOAD (next);
		733	UNLOCK;
684		734
685	/* mark this state as in-use */	735	/* mark this state as in-use */
686	next->mainstack = 0;	736	next->mainstack = 0;
687	next->tmps_ix = -2;	737	next->tmps_ix = -2;
688		738
…		…
707	continue_coro, (void *)next,	757	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
709	}	759	}
710		760
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	761	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		762	prev->cursp = stacklevel;
712	/* don't add any code here */	763	/* don't add any code here */
713	}	764	}
714		765	else
		766	next->cursp = stacklevel;
715	}	767	}
716	else if (next->tmps_ix == -2)	768	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	769	croak ("tried to transfer to running coroutine");
718	else	770	else
719	{	771	{
		772	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	773	SAVE (prev, -1); /* first get rid of the old state */
		774	UNLOCK;
721		775
722	if (flags & TRANSFER_SAVE_CCTXT)	776	if (flags & TRANSFER_SAVE_CCTXT)
723	{	777	{
724	if (!prev->stack)	778	if (!prev->stack)
725	allocate_stack (prev, 0);	779	allocate_stack (prev, 0);
726		780
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	781	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	782	{
		783	PL_top_env = &next->start_env;
		784
729	setup_coro (next);	785	setup_coro (next);
		786	next->cursp = stacklevel;
730		787
731	prev->stack->refcnt++;	788	prev->stack->refcnt++;
732	prev->stack->usecnt++;	789	prev->stack->usecnt++;
733	next->stack = prev->stack;	790	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	791	next->gencnt = prev->gencnt;
735	}	792	}
736	else	793	else
737	{	794	{
		795	assert (!next->stack);
738	allocate_stack (next, 1);	796	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	797	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	798	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	799	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	800	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		801	prev->cursp = stacklevel;
743	/* don't add any code here */	802	/* don't add any code here */
744	}	803	}
745	}	804	}
746	else	805	else
		806	{
747	setup_coro (next);	807	setup_coro (next);
		808	next->cursp = stacklevel;
		809	}
748	}	810	}
749
750	/*
751	* xnext is now either prev or next, depending on wether
752	* we switched the c stack or not. that's why i use a global
753	* variable, that should become thread-specific at one point.
754	*/
755	xnext->cursp = stacklevel;
756	}	811	}
757	}
758		812
759	static struct coro *	813	LOCK;
760	sv_to_coro (SV arg, const char funcname, const char *varname)	814	if (coro_mortal)
761	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763	{	815	{
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	816	SvREFCNT_dec (coro_mortal);
765		817	coro_mortal = 0;
766	if (!he)
767	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769	arg = HeVAL(he);
770	}	818	}
771		819	UNLOCK;
		820	}
		821
		822	#define SV_CORO(sv,func) \
		823	do { \
		824	if (SvROK (sv)) \
		825	sv = SvRV (sv); \
		826	\
		827	if (SvTYPE (sv) == SVt_PVHV) \
		828	{ \
		829	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		830	\
		831	if (!he) \
		832	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		833	\
		834	(sv) = SvRV (HeVAL(he)); \
		835	} \
		836	\
772	/* must also be changed inside Coro::Cont::yield */	837	/* must also be changed inside Coro::Cont::yield */ \
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))	838	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
774	&& SvSTASH(SvRV(arg)) == coro_state_stash)
775	return (struct coro ) SvIV((SV)SvRV(arg));
776
777	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);	839	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778	/NORETURN/	840	\
779	}	841	} while(0)
		842
		843	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
780		844
781	static void	845	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	846	api_transfer(pTHX_ SV prev, SV next, int flags)
783	{	847	{
784	transfer(aTHX_	848	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	849	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	850
787	flags);	851	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	852	}
789		853
790	/ Coro ******************************************************************/	854	/ Coro ******************************************************************/
791		855
792	#define PRIO_MAX 3	856	#define PRIO_MAX 3
…		…
800	static GV coro_current, coro_idle;	864	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	865	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	866	static int coro_nready;
803		867
804	static void	868	static void
805	coro_enq (SV *sv)	869	coro_enq (pTHX_ SV *sv)
806	{	870	{
807	if (SvROK (sv))	871	SV **xprio;
808	{	872	int prio;
809	SV *hv = SvRV (sv);	873
810	if (SvTYPE (hv) == SVt_PVHV)	874	if (SvTYPE (sv) != SVt_PVHV)
811	{
812	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
813	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814
815	prio = prio > PRIO_MAX ? PRIO_MAX
816	: prio < PRIO_MIN ? PRIO_MIN
817	: prio;
818
819	av_push (coro_ready [prio - PRIO_MIN], sv);
820	coro_nready++;
821
822	return;
823	}
824	}
825
826	croak ("Coro::ready tried to enqueue something that is not a coroutine");	875	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		876
		877	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		878	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		879
		880	prio = prio > PRIO_MAX ? PRIO_MAX
		881	: prio < PRIO_MIN ? PRIO_MIN
		882	: prio;
		883
		884	av_push (coro_ready [prio - PRIO_MIN], sv);
		885	coro_nready++;
827	}	886	}
828		887
829	static SV *	888	static SV *
830	coro_deq (int min_prio)	889	coro_deq (pTHX_ int min_prio)
831	{	890	{
832	int prio = PRIO_MAX - PRIO_MIN;	891	int prio = PRIO_MAX - PRIO_MIN;
833		892
834	min_prio -= PRIO_MIN;	893	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	894	if (min_prio < 0)
…		…
846	}	905	}
847		906
848	static void	907	static void
849	api_ready (SV *coro)	908	api_ready (SV *coro)
850	{	909	{
		910	dTHX;
		911
		912	if (SvROK (coro))
		913	coro = SvRV (coro);
		914
		915	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	916	coro_enq (aTHX_ SvREFCNT_inc (coro));
		917	UNLOCK;
852	}	918	}
853		919
854	static void	920	static void
855	api_schedule (int cede)	921	api_schedule (void)
856	{	922	{
		923	dTHX;
		924
857	SV prev, next;	925	SV prev, next;
858		926
		927	LOCK;
		928
859	prev = GvSV (coro_current);	929	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	930	next = coro_deq (aTHX_ PRIO_MIN);
865		931
866	if (!next)	932	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	933	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		934
869	GvSV (coro_current) = SvREFCNT_inc (next);	935	/* free this only after the transfer */
870	transfer (aTHX_	936	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	937	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	938
		939	SvRV (GvSV (coro_current)) = next;
		940
		941	SV_CORO (next, "Coro::schedule");
		942
		943	UNLOCK;
		944
		945	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	946	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	947	}
875	SvREFCNT_dec (prev);	948
		949	static void
		950	api_cede (void)
		951	{
		952	dTHX;
		953
		954	LOCK;
		955	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		956	UNLOCK;
		957
		958	api_schedule ();
876	}	959	}
877		960
878	MODULE = Coro::State PACKAGE = Coro::State	961	MODULE = Coro::State PACKAGE = Coro::State
879		962
880	PROTOTYPES: ENABLE	963	PROTOTYPES: ENABLE
881		964
882	BOOT:	965	BOOT:
883	{ /* {} necessary for stoopid perl-5.6.x */	966	{ /* {} necessary for stoopid perl-5.6.x */
		967	#ifdef USE_ITHREADS
		968	MUTEX_INIT (&coro_mutex);
		969	#endif
		970
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	971	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	972	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	973	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		974
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	975	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	976	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	977	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	978	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895		979
896	main_mainstack = PL_mainstack;	980	main_mainstack = PL_mainstack;
897		981
898	coroapi.ver = CORO_API_VERSION;	982	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	983	coroapi.transfer = api_transfer;
…		…
907	Coro__State coro;	991	Coro__State coro;
908		992
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	993	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");	994	croak ("Coro::State::_newprocess expects an arrayref");
911		995
912	New (0, coro, 1, struct coro);	996	Newz (0, coro, 1, struct coro);
913		997
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	998	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915	coro->mainstack = 0; /* actual work is done inside transfer */	999	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	1000	/coro->stack = 0;/
		1001
		1002	/* same as JMPENV_BOOTSTRAP */
		1003	/* we might be able to recycle start_env, but safe is safe */
		1004	/Zero(&coro->start_env, 1, JMPENV);/
		1005	coro->start_env.je_ret = -1;
		1006	coro->start_env.je_mustcatch = TRUE;
917		1007
918	RETVAL = coro;	1008	RETVAL = coro;
919	OUTPUT:	1009	OUTPUT:
920	RETVAL	1010	RETVAL
921		1011
922	void	1012	void
923	transfer(prev, next, flags)	1013	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	1014	SV *prev
925	Coro::State_or_hashref next	1015	SV *next
926	int flags	1016	int flags
927	PROTOTYPE: @	1017	PROTOTYPE: @
928	CODE:	1018	CODE:
929	PUTBACK;	1019	PUTBACK;
		1020	SV_CORO (next, "Coro::transfer");
		1021	SV_CORO (prev, "Coro::transfer");
930	transfer (aTHX_ prev, next, flags);	1022	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	1023	SPAGAIN;
932		1024
933	void	1025	void
934	DESTROY(coro)	1026	DESTROY(coro)
935	Coro::State coro	1027	Coro::State coro
…		…
938	if (coro->mainstack && coro->mainstack != main_mainstack)	1030	if (coro->mainstack && coro->mainstack != main_mainstack)
939	{	1031	{
940	struct coro temp;	1032	struct coro temp;
941		1033
942	PUTBACK;	1034	PUTBACK;
943	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1035	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944	LOAD(aTHX_ coro);	1036	LOAD (aTHX_ coro);
945	SPAGAIN;	1037	SPAGAIN;
946		1038
947	destroy_stacks (aTHX);	1039	destroy_stacks (aTHX);
948		1040
949	LOAD((&temp)); /* this will get rid of defsv etc.. */	1041	LOAD ((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;	1042	SPAGAIN;
951		1043
952	coro->mainstack = 0;	1044	coro->mainstack = 0;
953	}	1045	}
954		1046
955	deallocate_stack (coro);	1047	deallocate_stack (coro);
956		1048	SvREFCNT_dec (coro->args);
957	Safefree (coro);	1049	Safefree (coro);
958
959	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965		1050
966	void	1051	void
967	_exit(code)	1052	_exit(code)
968	int code	1053	int code
969	PROTOTYPE: $	1054	PROTOTYPE: $
970	CODE:	1055	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1056	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1057
979	MODULE = Coro::State PACKAGE = Coro::Cont	1058	MODULE = Coro::State PACKAGE = Coro::Cont
980		1059
981	# this is slightly dirty (should expose a c-level api)	1060	# this is slightly dirty (should expose a c-level api)
982		1061
983	void	1062	void
984	yield(...)	1063	yield(...)
985	PROTOTYPE: @	1064	PROTOTYPE: @
986	CODE:	1065	CODE:
987	static SV *returnstk;	1066	SV *yieldstack;
988	SV *sv;	1067	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1068	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1069	struct coro prev, next;
991		1070
992	if (!returnstk)	1071	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1072	(HV *)SvRV (GvSV (coro_current)),
		1073	"yieldstack", sizeof ("yieldstack") - 1,
		1074	0
		1075	);
994		1076
995	/* set up @_ -- ugly */	1077	/* set up @_ -- ugly */
996	av_clear (defav);	1078	av_clear (defav);
997	av_fill (defav, items - 1);	1079	av_fill (defav, items - 1);
998	while (items--)	1080	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1081	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1082
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1083	sv = av_pop ((AV *)SvRV (yieldstack));
1003	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1084	prev = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0))));
1004	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1085	next = INT2PTR (struct coro , SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0))));
1005	SvREFCNT_dec (sv);	1086	SvREFCNT_dec (sv);
1006		1087
1007	transfer(aTHX_ prev, next, 0);	1088	transfer (aTHX_ prev, next, 0);
1008		1089
1009	MODULE = Coro::State PACKAGE = Coro	1090	MODULE = Coro::State PACKAGE = Coro
1010		1091
1011	# this is slightly dirty (should expose a c-level api)	1092	# this is slightly dirty (should expose a c-level api)
1012		1093
…		…
1030		1111
1031	{	1112	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1113	SV *sv = perl_get_sv("Coro::API", 1);
1033		1114
1034	coroapi.schedule = api_schedule;	1115	coroapi.schedule = api_schedule;
		1116	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1117	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1118	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1119	coroapi.current = coro_current;
1038		1120
1039	GCoroAPI = &coroapi;	1121	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1122	sv_setiv(sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1123	SvREADONLY_on(sv);
1042	}	1124	}
1043	}	1125	}
		1126
		1127	#if !PERL_MICRO
1044		1128
1045	void	1129	void
1046	ready(self)	1130	ready(self)
1047	SV * self	1131	SV * self
1048	PROTOTYPE: $	1132	PROTOTYPE: $
1049	CODE:	1133	CODE:
1050	api_ready (self);	1134	api_ready (self);
		1135
		1136	#endif
1051		1137
1052	int	1138	int
1053	nready(...)	1139	nready(...)
1054	PROTOTYPE:	1140	PROTOTYPE:
1055	CODE:	1141	CODE:
…		…
1058	RETVAL	1144	RETVAL
1059		1145
1060	void	1146	void
1061	schedule(...)	1147	schedule(...)
1062	PROTOTYPE:	1148	PROTOTYPE:
1063	ALIAS:
1064	cede = 1
1065	CODE:	1149	CODE:
1066	api_schedule (ix);	1150	api_schedule ();
1067		1151
		1152	void
		1153	cede(...)
		1154	PROTOTYPE:
		1155	CODE:
		1156	api_cede ();
		1157
		1158	# and these are hacks
		1159	SV *
		1160	_aio_get_state ()
		1161	CODE:
		1162	{
		1163	struct {
		1164	int errorno;
		1165	int laststype;
		1166	int laststatval;
		1167	Stat_t statcache;
		1168	} data;
		1169
		1170	data.errorno = errno;
		1171	data.laststype = PL_laststype;
		1172	data.laststatval = PL_laststatval;
		1173	data.statcache = PL_statcache;
		1174
		1175	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1176	}
		1177	OUTPUT:
		1178	RETVAL
		1179
		1180	void
		1181	_aio_set_state (char *data_)
		1182	PROTOTYPE: $
		1183	CODE:
		1184	{
		1185	struct {
		1186	int errorno;
		1187	int laststype;
		1188	int laststatval;
		1189	Stat_t statcache;
		1190	} data = (void )data_;
		1191
		1192	errno = data->errorno;
		1193	PL_laststype = data->laststype;
		1194	PL_laststatval = data->laststatval;
		1195	PL_statcache = data->statcache;
		1196	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.37 by root, Tue Oct 9 00:39:11 2001 UTC vs. Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.37 by root, Tue Oct 9 00:39:11 2001 UTC vs.
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC