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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.31 by root, Sun Aug 26 16:36:08 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_ANON
13	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
15	# else	40	# else
16	# undef HAVE_MMAP	41	# undef HAVE_MMAP
17	# endif	42	# endif
18	# endif	43	# endif
19	#endif	44	#endif
20		45
21	#define MAY_FLUSH /* increases codesize 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
28	* and should be unique. */	51	* and should be unique. */
29	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
30		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
31	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
32		57
33	#include "CoroAPI.h"	58	#include "CoroAPI.h"
34		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK (void)0
		66	# define UNLOCK (void)0
		67	#endif
		68
35	static struct CoroAPI coroapi;	69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
36		75
37	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
38	typedef struct {	77	typedef struct {
39	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
40	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
45	void *sptr;	84	void *sptr;
46	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
47	} coro_stack;	86	} coro_stack;
48		87
49	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
50	/* the optional C context */	92	/* the optional C context */
51	coro_stack *stack;	93	coro_stack *stack;
52	void *cursp;	94	void *cursp;
53	int gencnt;	95	int gencnt;
54		96
…		…
66	AV *curstack;	108	AV *curstack;
67	AV *mainstack;	109	AV *mainstack;
68	SV **stack_sp;	110	SV **stack_sp;
69	OP *op;	111	OP *op;
70	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
71	SV **stack_base;	115	SV **stack_base;
72	SV **stack_max;	116	SV **stack_max;
73	SV **tmps_stack;	117	SV **tmps_stack;
74	I32 tmps_floor;	118	I32 tmps_floor;
75	I32 tmps_ix;	119	I32 tmps_ix;
…		…
84	I32 savestack_ix;	128	I32 savestack_ix;
85	I32 savestack_max;	129	I32 savestack_max;
86	OP **retstack;	130	OP **retstack;
87	I32 retstack_ix;	131	I32 retstack_ix;
88	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
89	COP *curcop;	134	COP *curcop;
90	JMPENV *top_env;	135	JMPENV *top_env;
91		136
92	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
93	AV *args;	138	AV *args;
94	};	139	};
95		140
96	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
97	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
98		143
99	static AV main_mainstack; / used to differentiate between $main and others */
100	static HV *coro_state_stash;
101	static SV *ucoro_state_sv;
102	static U32 ucoro_state_hash;
103	static HV *padlist_cache;
104
105	/* mostly copied from op.c:cv_clone2 */	144	/* mostly copied from op.c:cv_clone2 */
106	STATIC AV *	145	STATIC AV *
107	clone_padlist (AV *protopadlist)	146	clone_padlist (pTHX_ AV *protopadlist)
108	{	147	{
109	AV *av;	148	AV *av;
110	I32 ix;	149	I32 ix;
111	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
112	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
131	av_store (newpadlist, 1, (SV *) newpad);	170	av_store (newpadlist, 1, (SV *) newpad);
132		171
133	av = newAV (); /* will be @_ */	172	av = newAV (); /* will be @_ */
134	av_extend (av, 0);	173	av_extend (av, 0);
135	av_store (newpad, 0, (SV *) av);	174	av_store (newpad, 0, (SV *) av);
136	AvFLAGS (av) = AVf_REIFY;	175	AvREIFY_on (av);
137		176
138	for (ix = fpad; ix > 0; ix--)	177	for (ix = fpad; ix > 0; ix--)
139	{	178	{
140	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		180
141	if (namesv && namesv != &PL_sv_undef)	181	if (namesv && namesv != &PL_sv_undef)
142	{	182	{
143	char name = SvPVX (namesv); / XXX */	183	char name = SvPVX (namesv); / XXX */
		184
144	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
145	{ /* lexical from outside? */	186	{ /* lexical from outside? */
146	npad[ix] = SvREFCNT_inc (ppad[ix]);	187	npad[ix] = SvREFCNT_inc (ppad[ix]);
147	}	188	}
148	else	189	else
…		…
154	sv = (SV *) newAV ();	195	sv = (SV *) newAV ();
155	else if (*name == '%')	196	else if (*name == '%')
156	sv = (SV *) newHV ();	197	sv = (SV *) newHV ();
157	else	198	else
158	sv = NEWSV (0, 0);	199	sv = NEWSV (0, 0);
		200
		201	#ifdef SvPADBUSY
159	if (!SvPADBUSY (sv))	202	if (!SvPADBUSY (sv))
		203	#endif
160	SvPADMY_on (sv);	204	SvPADMY_on (sv);
		205
161	npad[ix] = sv;	206	npad[ix] = sv;
162	}	207	}
163	}	208	}
164	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
165	{	210	{
…		…
194	#endif	239	#endif
195		240
196	return newpadlist;	241	return newpadlist;
197	}	242	}
198		243
199	#ifdef MAY_FLUSH
200	STATIC void	244	STATIC void
201	free_padlist (AV *padlist)	245	free_padlist (pTHX_ AV *padlist)
202	{	246	{
203	/* may be during global destruction */	247	/* may be during global destruction */
204	if (SvREFCNT(padlist))	248	if (SvREFCNT (padlist))
205	{	249	{
206	I32 i = AvFILLp(padlist);	250	I32 i = AvFILLp (padlist);
207	while (i >= 0)	251	while (i >= 0)
208	{	252	{
209	SV **svp = av_fetch(padlist, i--, FALSE);	253	SV **svp = av_fetch (padlist, i--, FALSE);
210	SV sv = svp ? svp : Nullsv;
211	if (sv)	254	if (svp)
		255	{
		256	SV *sv;
		257	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
212	SvREFCNT_dec(sv);	258	SvREFCNT_dec (sv);
		259
		260	SvREFCNT_dec (*svp);
		261	}
213	}	262	}
214		263
215	SvREFCNT_dec((SV*)padlist);	264	SvREFCNT_dec ((SV*)padlist);
216	}	265	}
217	}	266	}
218	#endif	267
		268	STATIC int
		269	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		270	{
		271	AV *padlist;
		272	AV av = (AV )mg->mg_obj;
		273
		274	/* casting is fun. */
		275	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		276	free_padlist (aTHX_ padlist);
		277
		278	SvREFCNT_dec (av);
		279
		280	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};
219		286
220	/* the next two functions merely cache the padlists */	287	/* the next two functions merely cache the padlists */
221	STATIC void	288	STATIC void
222	get_padlist (CV *cv)	289	get_padlist (pTHX_ CV *cv)
223	{	290	{
224	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	291	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
225		292
226	if (he && AvFILLp ((AV )he) >= 0)	293	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
227	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	294	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
228	else	295	else
229	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	296	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
230	}	297	}
231		298
232	STATIC void	299	STATIC void
233	put_padlist (CV *cv)	300	put_padlist (pTHX_ CV *cv)
234	{	301	{
235	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	302	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
236		303
237	if (SvTYPE (*he) != SVt_PVAV)	304	if (!mg)
238	{	305	{
239	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;
240	he = (SV )newAV ();	309	mg->mg_obj = (SV *)newAV ();
241	}	310	}
242		311
243	av_push ((AV )he, (SV *)CvPADLIST (cv));	312	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
244	}	313	}
245
246	#ifdef MAY_FLUSH
247	STATIC void
248	flush_padlist_cache ()
249	{
250	HV *hv = padlist_cache;
251	padlist_cache = newHV ();
252
253	if (hv_iterinit (hv))
254	{
255	HE *he;
256	AV *padlist;
257
258	while (!!(he = hv_iternext (hv)))
259	{
260	AV av = (AV )HeVAL(he);
261
262	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);
265	}
266	}
267
268	SvREFCNT_dec (hv);
269	}
270	#endif
271		314
272	#define SB do {	315	#define SB do {
273	#define SE } while (0)	316	#define SE } while (0)
274		317
275	#define LOAD(state) load_state(aTHX_ (state));	318	#define LOAD(state) load_state(aTHX_ (state));
276	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	319	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
277		320
278	#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
279		322
280	static void	323	static void
281	load_state(pTHX_ Coro__State c)	324	load_state(pTHX_ Coro__State c)
282	{	325	{
283	PL_dowarn = c->dowarn;	326	PL_dowarn = c->dowarn;
…		…
287	PL_curstack = c->curstack;	330	PL_curstack = c->curstack;
288	PL_mainstack = c->mainstack;	331	PL_mainstack = c->mainstack;
289	PL_stack_sp = c->stack_sp;	332	PL_stack_sp = c->stack_sp;
290	PL_op = c->op;	333	PL_op = c->op;
291	PL_curpad = c->curpad;	334	PL_curpad = c->curpad;
		335	PL_comppad = c->comppad;
		336	PL_compcv = c->compcv;
292	PL_stack_base = c->stack_base;	337	PL_stack_base = c->stack_base;
293	PL_stack_max = c->stack_max;	338	PL_stack_max = c->stack_max;
294	PL_tmps_stack = c->tmps_stack;	339	PL_tmps_stack = c->tmps_stack;
295	PL_tmps_floor = c->tmps_floor;	340	PL_tmps_floor = c->tmps_floor;
296	PL_tmps_ix = c->tmps_ix;	341	PL_tmps_ix = c->tmps_ix;
…		…
302	PL_scopestack_ix = c->scopestack_ix;	347	PL_scopestack_ix = c->scopestack_ix;
303	PL_scopestack_max = c->scopestack_max;	348	PL_scopestack_max = c->scopestack_max;
304	PL_savestack = c->savestack;	349	PL_savestack = c->savestack;
305	PL_savestack_ix = c->savestack_ix;	350	PL_savestack_ix = c->savestack_ix;
306	PL_savestack_max = c->savestack_max;	351	PL_savestack_max = c->savestack_max;
		352	#if PERL_VERSION < 9
307	PL_retstack = c->retstack;	353	PL_retstack = c->retstack;
308	PL_retstack_ix = c->retstack_ix;	354	PL_retstack_ix = c->retstack_ix;
309	PL_retstack_max = c->retstack_max;	355	PL_retstack_max = c->retstack_max;
		356	#endif
		357	PL_curpm = c->curpm;
310	PL_curcop = c->curcop;	358	PL_curcop = c->curcop;
311	PL_top_env = c->top_env;	359	PL_top_env = c->top_env;
312		360
313	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	361	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
314	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	362	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
323	{	371	{
324	AV padlist = (AV )POPs;	372	AV padlist = (AV )POPs;
325		373
326	if (padlist)	374	if (padlist)
327	{	375	{
328	put_padlist (cv); /* mark this padlist as available */	376	put_padlist (aTHX_ cv); /* mark this padlist as available */
329	CvPADLIST(cv) = padlist;	377	CvPADLIST(cv) = padlist;
330	#ifdef USE_THREADS
331	/CvOWNER(cv) = (struct perl_thread )POPs;*/
332	#endif
333	}	378	}
334		379
335	++CvDEPTH(cv);	380	++CvDEPTH(cv);
336	}	381	}
337		382
…		…
364	if (CxTYPE(cx) == CXt_SUB)	409	if (CxTYPE(cx) == CXt_SUB)
365	{	410	{
366	CV *cv = cx->blk_sub.cv;	411	CV *cv = cx->blk_sub.cv;
367	if (CvDEPTH(cv))	412	if (CvDEPTH(cv))
368	{	413	{
369	#ifdef USE_THREADS
370	/XPUSHs ((SV )CvOWNER(cv));*/
371	/CvOWNER(cv) = 0;/
372	/error must unlock this cv etc.. etc.../
373	#endif
374	EXTEND (SP, CvDEPTH(cv)*2);	414	EXTEND (SP, CvDEPTH(cv)*2);
375		415
376	while (--CvDEPTH(cv))	416	while (--CvDEPTH(cv))
377	{	417	{
378	/* this tells the restore code to increment CvDEPTH */	418	/* this tells the restore code to increment CvDEPTH */
…		…
381	}	421	}
382		422
383	PUSHs ((SV *)CvPADLIST(cv));	423	PUSHs ((SV *)CvPADLIST(cv));
384	PUSHs ((SV *)cv);	424	PUSHs ((SV *)cv);
385		425
386	get_padlist (cv); /* this is a monster */	426	get_padlist (aTHX_ cv); /* this is a monster */
387	}	427	}
388	}	428	}
		429	#ifdef CXt_FORMAT
389	else if (CxTYPE(cx) == CXt_FORMAT)	430	else if (CxTYPE(cx) == CXt_FORMAT)
390	{	431	{
391	/* 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? */
392	/* my bold guess is as a simple, plain sub... */	433	/* my bold guess is as a simple, plain sub... */
393	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");
394	}	435	}
		436	#endif
395	}	437	}
396		438
397	if (top_si->si_type == PERLSI_MAIN)	439	if (top_si->si_type == PERLSI_MAIN)
398	break;	440	break;
399		441
…		…
416	c->curstack = PL_curstack;	458	c->curstack = PL_curstack;
417	c->mainstack = PL_mainstack;	459	c->mainstack = PL_mainstack;
418	c->stack_sp = PL_stack_sp;	460	c->stack_sp = PL_stack_sp;
419	c->op = PL_op;	461	c->op = PL_op;
420	c->curpad = PL_curpad;	462	c->curpad = PL_curpad;
		463	c->comppad = PL_comppad;
		464	c->compcv = PL_compcv;
421	c->stack_base = PL_stack_base;	465	c->stack_base = PL_stack_base;
422	c->stack_max = PL_stack_max;	466	c->stack_max = PL_stack_max;
423	c->tmps_stack = PL_tmps_stack;	467	c->tmps_stack = PL_tmps_stack;
424	c->tmps_floor = PL_tmps_floor;	468	c->tmps_floor = PL_tmps_floor;
425	c->tmps_ix = PL_tmps_ix;	469	c->tmps_ix = PL_tmps_ix;
…		…
431	c->scopestack_ix = PL_scopestack_ix;	475	c->scopestack_ix = PL_scopestack_ix;
432	c->scopestack_max = PL_scopestack_max;	476	c->scopestack_max = PL_scopestack_max;
433	c->savestack = PL_savestack;	477	c->savestack = PL_savestack;
434	c->savestack_ix = PL_savestack_ix;	478	c->savestack_ix = PL_savestack_ix;
435	c->savestack_max = PL_savestack_max;	479	c->savestack_max = PL_savestack_max;
		480	#if PERL_VERSION < 9
436	c->retstack = PL_retstack;	481	c->retstack = PL_retstack;
437	c->retstack_ix = PL_retstack_ix;	482	c->retstack_ix = PL_retstack_ix;
438	c->retstack_max = PL_retstack_max;	483	c->retstack_max = PL_retstack_max;
		484	#endif
		485	c->curpm = PL_curpm;
439	c->curcop = PL_curcop;	486	c->curcop = PL_curcop;
440	c->top_env = PL_top_env;	487	c->top_env = PL_top_env;
441	}	488	}
442		489
443	/*	490	/*
444	* allocate various perl stacks. This is an exact copy	491	* allocate various perl stacks. This is an exact copy
445	* of perl.c:init_stacks, except that it uses less memory	492	* of perl.c:init_stacks, except that it uses less memory
446	* on the assumption that coroutines do not usually need	493	* on the (sometimes correct) assumption that coroutines do
447	* a lot of stackspace.	494	* not usually need a lot of stackspace.
448	*/	495	*/
449	STATIC void	496	STATIC void
450	coro_init_stacks (pTHX)	497	coro_init_stacks (pTHX)
451	{	498	{
		499	LOCK;
		500
452	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	501	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
453	PL_curstackinfo->si_type = PERLSI_MAIN;	502	PL_curstackinfo->si_type = PERLSI_MAIN;
454	PL_curstack = PL_curstackinfo->si_stack;	503	PL_curstack = PL_curstackinfo->si_stack;
455	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
456		505
…		…
465		514
466	New(54,PL_markstack,16,I32);	515	New(54,PL_markstack,16,I32);
467	PL_markstack_ptr = PL_markstack;	516	PL_markstack_ptr = PL_markstack;
468	PL_markstack_max = PL_markstack + 16;	517	PL_markstack_max = PL_markstack + 16;
469		518
		519	#ifdef SET_MARK_OFFSET
470	SET_MARK_OFFSET;	520	SET_MARK_OFFSET;
		521	#endif
471		522
472	New(54,PL_scopestack,16,I32);	523	New(54,PL_scopestack,16,I32);
473	PL_scopestack_ix = 0;	524	PL_scopestack_ix = 0;
474	PL_scopestack_max = 16;	525	PL_scopestack_max = 16;
475		526
476	New(54,PL_savestack,96,ANY);	527	New(54,PL_savestack,96,ANY);
477	PL_savestack_ix = 0;	528	PL_savestack_ix = 0;
478	PL_savestack_max = 96;	529	PL_savestack_max = 96;
479		530
		531	#if PERL_VERSION < 9
480	New(54,PL_retstack,8,OP*);	532	New(54,PL_retstack,8,OP*);
481	PL_retstack_ix = 0;	533	PL_retstack_ix = 0;
482	PL_retstack_max = 8;	534	PL_retstack_max = 8;
		535	#endif
		536
		537	UNLOCK;
483	}	538	}
484		539
485	/*	540	/*
486	* destroy the stacks, the callchain etc...	541	* destroy the stacks, the callchain etc...
487	* still there is a memleak of 128 bytes...
488	*/	542	*/
489	STATIC void	543	STATIC void
490	destroy_stacks(pTHX)	544	destroy_stacks(pTHX)
491	{	545	{
492	int destruct = PL_main_cv != Nullcv;	546	if (!IN_DESTRUCT)
493
494	if (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 (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	#ifdef 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_ANON, 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		711
656	/FIXME//* must set up top_env here */	712	PL_top_env = &ctx->start_env;
		713
657	ctx->cursp = 0;	714	ctx->cursp = 0;
658	PL_op = PL_op->op_next;	715	PL_op = PL_op->op_next;
659	CALLRUNOPS(aTHX);	716	CALLRUNOPS(aTHX);
660		717
661	abort ();	718	abort ();
662	}	719	}
663		720
664	STATIC void	721	STATIC void
665	transfer(pTHX_ struct coro prev, struct coro next, int flags)	722	transfer (pTHX_ struct coro prev, struct coro next, int flags)
666	{	723	{
667	dSTACKLEVEL;	724	dSTACKLEVEL;
668	static struct coro *xnext;
669		725
670	if (prev != next)	726	if (prev != next)
671	{	727	{
672	xnext = next;
673
674	if (next->mainstack)	728	if (next->mainstack)
675	{	729	{
		730	LOCK;
676	SAVE (prev, flags);	731	SAVE (prev, flags);
677	LOAD (next);	732	LOAD (next);
		733	UNLOCK;
678		734
679	/* mark this state as in-use */	735	/* mark this state as in-use */
680	next->mainstack = 0;	736	next->mainstack = 0;
681	next->tmps_ix = -2;	737	next->tmps_ix = -2;
682		738
…		…
701	continue_coro, (void *)next,	757	continue_coro, (void *)next,
702	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
703	}	759	}
704		760
705	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	761	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		762	prev->cursp = stacklevel;
706	/* don't add any code here */	763	/* don't add any code here */
707	}	764	}
708		765	else
		766	next->cursp = stacklevel;
709	}	767	}
710	else if (next->tmps_ix == -2)	768	else if (next->tmps_ix == -2)
711	croak ("tried to transfer to running coroutine");	769	croak ("tried to transfer to running coroutine");
712	else	770	else
713	{	771	{
		772	LOCK;
714	SAVE (prev, -1); /* first get rid of the old state */	773	SAVE (prev, -1); /* first get rid of the old state */
		774	UNLOCK;
715		775
716	if (flags & TRANSFER_SAVE_CCTXT)	776	if (flags & TRANSFER_SAVE_CCTXT)
717	{	777	{
718	if (!prev->stack)	778	if (!prev->stack)
719	allocate_stack (prev, 0);	779	allocate_stack (prev, 0);
720		780
721	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	781	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
722	{	782	{
		783	PL_top_env = &next->start_env;
		784
723	setup_coro (next);	785	setup_coro (next);
		786	next->cursp = stacklevel;
724		787
725	prev->stack->refcnt++;	788	prev->stack->refcnt++;
726	prev->stack->usecnt++;	789	prev->stack->usecnt++;
727	next->stack = prev->stack;	790	next->stack = prev->stack;
728	next->gencnt = prev->gencnt;	791	next->gencnt = prev->gencnt;
729	}	792	}
730	else	793	else
731	{	794	{
		795	assert (!next->stack);
732	allocate_stack (next, 1);	796	allocate_stack (next, 1);
733	coro_create (&(next->stack->cctx),	797	coro_create (&(next->stack->cctx),
734	setup_coro, (void *)next,	798	setup_coro, (void *)next,
735	next->stack->sptr, labs (next->stack->ssize));	799	next->stack->sptr, labs (next->stack->ssize));
736	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	800	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		801	prev->cursp = stacklevel;
737	/* don't add any code here */	802	/* don't add any code here */
738	}	803	}
739	}	804	}
740	else	805	else
		806	{
741	setup_coro (next);	807	setup_coro (next);
		808	next->cursp = stacklevel;
		809	}
742	}	810	}
743	}	811	}
744		812
745	/*	813	LOCK;
746	* xnext is now either prev or next, depending on wether	814	if (coro_mortal)
747	* we switched the c stack or not. that's why i use a global
748	* variable, that should become thread-specific at one point.
749	*/
750	xnext->cursp = stacklevel;
751	}
752
753	static struct coro *
754	sv_to_coro (SV arg, const char funcname, const char *varname)
755	{
756	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
757	{	815	{
758	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	816	SvREFCNT_dec (coro_mortal);
759		817	coro_mortal = 0;
760	if (!he)
761	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
762
763	arg = HeVAL(he);
764	}	818	}
765		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	\
766	/* must also be changed inside Coro::Cont::yield */	837	/* must also be changed inside Coro::Cont::yield */ \
767	if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash)	838	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
768	return (struct coro ) SvIV((SV)SvRV(arg));
769
770	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); \
771	/NORETURN/	840	\
772	}	841	} while(0)
		842
		843	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
773		844
774	static void	845	static void
775	api_transfer(pTHX_ SV prev, SV next, int flags)	846	api_transfer(pTHX_ SV prev, SV next, int flags)
776	{	847	{
777	transfer(aTHX_	848	SV_CORO (prev, "Coro::transfer");
778	sv_to_coro (prev, "Coro::transfer", "prev"),	849	SV_CORO (next, "Coro::transfer");
779	sv_to_coro (next, "Coro::transfer", "next"),	850
780	flags);	851	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
781	}	852	}
782		853
783	/ Coro ******************************************************************/	854	/ Coro ******************************************************************/
784		855
785	#define PRIO_MAX 3	856	#define PRIO_MAX 3
…		…
793	static GV coro_current, coro_idle;	864	static GV coro_current, coro_idle;
794	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	865	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
795	static int coro_nready;	866	static int coro_nready;
796		867
797	static void	868	static void
798	coro_enq (SV *sv)	869	coro_enq (pTHX_ SV *sv)
799	{	870	{
800	if (SvROK (sv))	871	SV **xprio;
801	{	872	int prio;
802	SV *hv = SvRV (sv);	873
803	if (SvTYPE (hv) == SVt_PVHV)	874	if (SvTYPE (sv) != SVt_PVHV)
804	{
805	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
806	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
807
808	prio = prio > PRIO_MAX ? PRIO_MAX
809	: prio < PRIO_MIN ? PRIO_MIN
810	: prio;
811
812	av_push (coro_ready [prio - PRIO_MIN], sv);
813	coro_nready++;
814
815	return;
816	}
817	}
818
819	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++;
820	}	886	}
821		887
822	static SV *	888	static SV *
823	coro_deq (int min_prio)	889	coro_deq (pTHX_ int min_prio)
824	{	890	{
825	int prio = PRIO_MAX - PRIO_MIN;	891	int prio = PRIO_MAX - PRIO_MIN;
826		892
827	min_prio -= PRIO_MIN;	893	min_prio -= PRIO_MIN;
828	if (min_prio < 0)	894	if (min_prio < 0)
…		…
839	}	905	}
840		906
841	static void	907	static void
842	api_ready (SV *coro)	908	api_ready (SV *coro)
843	{	909	{
		910	dTHX;
		911
		912	if (SvROK (coro))
		913	coro = SvRV (coro);
		914
		915	LOCK;
844	coro_enq (SvREFCNT_inc (coro));	916	coro_enq (aTHX_ SvREFCNT_inc (coro));
		917	UNLOCK;
845	}	918	}
846		919
847	static void	920	static void
848	api_schedule (int cede)	921	api_schedule (void)
849	{	922	{
		923	dTHX;
		924
850	SV prev, next;	925	SV prev, next;
851		926
		927	LOCK;
		928
852	prev = GvSV (coro_current);	929	prev = SvRV (GvSV (coro_current));
853
854	if (cede)
855	coro_enq (SvREFCNT_inc (prev));
856
857	next = coro_deq (PRIO_MIN);	930	next = coro_deq (aTHX_ PRIO_MIN);
858		931
859	if (!next)	932	if (!next)
860	next = SvREFCNT_inc (GvSV (coro_idle));	933	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
861		934
862	GvSV (coro_current) = SvREFCNT_inc (next);	935	/* free this only after the transfer */
863	transfer (aTHX_	936	coro_mortal = prev;
864	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	937	SV_CORO (prev, "Coro::schedule");
865	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),
866	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	946	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
867	SvREFCNT_dec (next);	947	}
868	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 ();
869	}	959	}
870		960
871	MODULE = Coro::State PACKAGE = Coro::State	961	MODULE = Coro::State PACKAGE = Coro::State
872		962
873	PROTOTYPES: ENABLE	963	PROTOTYPES: ENABLE
874		964
875	BOOT:	965	BOOT:
876	{ /* {} 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
877	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	971	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
878	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	972	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
879	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	973	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
880		974
881	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	975	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
882	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	976	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
883	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	977	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
884	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	978	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
885
886	if (!padlist_cache)
887	padlist_cache = newHV ();
888		979
889	main_mainstack = PL_mainstack;	980	main_mainstack = PL_mainstack;
890		981
891	coroapi.ver = CORO_API_VERSION;	982	coroapi.ver = CORO_API_VERSION;
892	coroapi.transfer = api_transfer;	983	coroapi.transfer = api_transfer;
…		…
900	Coro__State coro;	991	Coro__State coro;
901		992
902	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	993	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
903	croak ("Coro::State::_newprocess expects an arrayref");	994	croak ("Coro::State::_newprocess expects an arrayref");
904		995
905	New (0, coro, 1, struct coro);	996	Newz (0, coro, 1, struct coro);
906		997
907	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	998	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
908	coro->mainstack = 0; /* actual work is done inside transfer */	999	/coro->mainstack = 0; //actual work is done inside transfer /
909	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;
910		1007
911	RETVAL = coro;	1008	RETVAL = coro;
912	OUTPUT:	1009	OUTPUT:
913	RETVAL	1010	RETVAL
914		1011
915	void	1012	void
916	transfer(prev, next, flags)	1013	transfer(prev, next, flags)
917	Coro::State_or_hashref prev	1014	SV *prev
918	Coro::State_or_hashref next	1015	SV *next
919	int flags	1016	int flags
920	PROTOTYPE: @	1017	PROTOTYPE: @
921	CODE:	1018	CODE:
922	PUTBACK;	1019	PUTBACK;
		1020	SV_CORO (next, "Coro::transfer");
		1021	SV_CORO (prev, "Coro::transfer");
923	transfer (aTHX_ prev, next, flags);	1022	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
924	SPAGAIN;	1023	SPAGAIN;
925		1024
926	void	1025	void
927	DESTROY(coro)	1026	DESTROY(coro)
928	Coro::State coro	1027	Coro::State coro
…		…
931	if (coro->mainstack && coro->mainstack != main_mainstack)	1030	if (coro->mainstack && coro->mainstack != main_mainstack)
932	{	1031	{
933	struct coro temp;	1032	struct coro temp;
934		1033
935	PUTBACK;	1034	PUTBACK;
936	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1035	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
937	LOAD(aTHX_ coro);	1036	LOAD (aTHX_ coro);
938	SPAGAIN;	1037	SPAGAIN;
939		1038
940	destroy_stacks (aTHX);	1039	destroy_stacks (aTHX);
941		1040
942	LOAD((&temp)); /* this will get rid of defsv etc.. */	1041	LOAD ((&temp)); /* this will get rid of defsv etc.. */
943	SPAGAIN;	1042	SPAGAIN;
944		1043
945	coro->mainstack = 0;	1044	coro->mainstack = 0;
946	}	1045	}
947		1046
948	deallocate_stack (coro);	1047	deallocate_stack (coro);
949		1048	SvREFCNT_dec (coro->args);
950	Safefree (coro);	1049	Safefree (coro);
951
952	void
953	flush()
954	CODE:
955	#ifdef MAY_FLUSH
956	flush_padlist_cache ();
957	#endif
958		1050
959	void	1051	void
960	_exit(code)	1052	_exit(code)
961	int code	1053	int code
962	PROTOTYPE: $	1054	PROTOTYPE: $
963	CODE:	1055	CODE:
964	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
965	_exit (code);	1056	_exit (code);
966	#else
967	signal (SIGTERM, SIG_DFL);
968	raise (SIGTERM);
969	exit (code);
970	#endif
971		1057
972	MODULE = Coro::State PACKAGE = Coro::Cont	1058	MODULE = Coro::State PACKAGE = Coro::Cont
973		1059
974	# this is slightly dirty (should expose a c-level api)	1060	# this is slightly dirty (should expose a c-level api)
975		1061
976	void	1062	void
977	yield(...)	1063	yield(...)
978	PROTOTYPE: @	1064	PROTOTYPE: @
979	CODE:	1065	CODE:
980	static SV *returnstk;	1066	SV *yieldstack;
981	SV *sv;	1067	SV *sv;
982	AV *defav = GvAV (PL_defgv);	1068	AV *defav = GvAV (PL_defgv);
983	struct coro prev, next;	1069	struct coro prev, next;
984		1070
985	if (!returnstk)	1071	yieldstack = *hv_fetch (
986	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1072	(HV *)SvRV (GvSV (coro_current)),
		1073	"yieldstack", sizeof ("yieldstack") - 1,
		1074	0
		1075	);
987		1076
988	/* set up @_ -- ugly */	1077	/* set up @_ -- ugly */
989	av_clear (defav);	1078	av_clear (defav);
990	av_fill (defav, items - 1);	1079	av_fill (defav, items - 1);
991	while (items--)	1080	while (items--)
992	av_store (defav, items, SvREFCNT_inc (ST(items)));	1081	av_store (defav, items, SvREFCNT_inc (ST(items)));
993		1082
994	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
995	sv = av_pop ((AV *)SvRV (returnstk));	1083	sv = av_pop ((AV *)SvRV (yieldstack));
996	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))));
997	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))));
998	SvREFCNT_dec (sv);	1086	SvREFCNT_dec (sv);
999		1087
1000	transfer(aTHX_ prev, next, 0);	1088	transfer (aTHX_ prev, next, 0);
1001		1089
1002	MODULE = Coro::State PACKAGE = Coro	1090	MODULE = Coro::State PACKAGE = Coro
1003		1091
1004	# this is slightly dirty (should expose a c-level api)	1092	# this is slightly dirty (should expose a c-level api)
1005		1093
…		…
1023		1111
1024	{	1112	{
1025	SV *sv = perl_get_sv("Coro::API", 1);	1113	SV *sv = perl_get_sv("Coro::API", 1);
1026		1114
1027	coroapi.schedule = api_schedule;	1115	coroapi.schedule = api_schedule;
		1116	coroapi.cede = api_cede;
1028	coroapi.ready = api_ready;	1117	coroapi.ready = api_ready;
1029	coroapi.nready = &coro_nready;	1118	coroapi.nready = &coro_nready;
1030	coroapi.current = coro_current;	1119	coroapi.current = coro_current;
1031		1120
1032	GCoroAPI = &coroapi;	1121	GCoroAPI = &coroapi;
1033	sv_setiv(sv, (IV)&coroapi);	1122	sv_setiv(sv, (IV)&coroapi);
1034	SvREADONLY_on(sv);	1123	SvREADONLY_on(sv);
1035	}	1124	}
1036	}	1125	}
1037		1126
		1127	#if !PERL_MICRO
		1128
1038	void	1129	void
1039	ready(self)	1130	ready(self)
1040	SV * self	1131	SV * self
		1132	PROTOTYPE: $
1041	CODE:	1133	CODE:
1042	api_ready (self);	1134	api_ready (self);
		1135
		1136	#endif
1043		1137
1044	int	1138	int
1045	nready(...)	1139	nready(...)
1046	PROTOTYPE:	1140	PROTOTYPE:
1047	CODE:	1141	CODE:
…		…
1050	RETVAL	1144	RETVAL
1051		1145
1052	void	1146	void
1053	schedule(...)	1147	schedule(...)
1054	PROTOTYPE:	1148	PROTOTYPE:
1055	ALIAS:
1056	cede = 1
1057	CODE:	1149	CODE:
1058	api_schedule (ix);	1150	api_schedule ();
1059		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 1.31 by root, Sun Aug 26 16:36:08 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 1.31 by root, Sun Aug 26 16:36:08 2001 UTC vs.
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC