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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs.
Revision 1.74 by root, Mon Oct 23 22:49:09 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
		32	#include <errno.h>
7	#include <signal.h>	33	#include <signal.h>
8		34
9	#ifdef HAVE_MMAP	35	#ifdef HAVE_MMAP
10	# include <unistd.h>	36	# include <unistd.h>
11	# include <sys/mman.h>	37	# include <sys/mman.h>
12	# ifndef MAP_ANON
13	# ifdef MAP_ANONYMOUS	38	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	39	# ifdef MAP_ANON
		40	# define MAP_ANONYMOUS MAP_ANON
15	# else	41	# else
16	# undef HAVE_MMAP	42	# undef HAVE_MMAP
17	# endif	43	# endif
18	# endif	44	# endif
19	#endif	45	#endif
20		46
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	47	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	48	#define UCORO_STATE "_coro_state"
25		49
26	/* The next macro should declare a variable stacklevel that contains and approximation	50	/* 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	51	* to the current C stack pointer. Its property is that it changes with each call
32		56
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	57	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		58
35	#include "CoroAPI.h"	59	#include "CoroAPI.h"
36		60
		61	#ifdef USE_ITHREADS
		62	static perl_mutex coro_mutex;
		63	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		64	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		65	#else
		66	# define LOCK (void)0
		67	# define UNLOCK (void)0
		68	#endif
		69
37	static struct CoroAPI coroapi;	70	static struct CoroAPI coroapi;
		71	static AV main_mainstack; / used to differentiate between $main and others */
		72	static HV *coro_state_stash;
		73	static SV *ucoro_state_sv;
		74	static U32 ucoro_state_hash;
		75	static SV coro_mortal; / will be freed after next transfer */
38		76
39	/* this is actually not only the c stack but also c registers etc... */	77	/* this is actually not only the c stack but also c registers etc... */
40	typedef struct {	78	typedef struct {
41	int refcnt; /* pointer reference counter */	79	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	80	int usecnt; /* shared by how many coroutines */
…		…
47	void *sptr;	85	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	86	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	87	} coro_stack;
50		88
51	struct coro {	89	struct coro {
		90	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		91	JMPENV start_env;
		92
52	/* the optional C context */	93	/* the optional C context */
53	coro_stack *stack;	94	coro_stack *stack;
54	void *cursp;	95	void *cursp;
55	int gencnt;	96	int gencnt;
56		97
…		…
68	AV *curstack;	109	AV *curstack;
69	AV *mainstack;	110	AV *mainstack;
70	SV **stack_sp;	111	SV **stack_sp;
71	OP *op;	112	OP *op;
72	SV **curpad;	113	SV **curpad;
		114	AV *comppad;
		115	CV *compcv;
73	SV **stack_base;	116	SV **stack_base;
74	SV **stack_max;	117	SV **stack_max;
75	SV **tmps_stack;	118	SV **tmps_stack;
76	I32 tmps_floor;	119	I32 tmps_floor;
77	I32 tmps_ix;	120	I32 tmps_ix;
…		…
86	I32 savestack_ix;	129	I32 savestack_ix;
87	I32 savestack_max;	130	I32 savestack_max;
88	OP **retstack;	131	OP **retstack;
89	I32 retstack_ix;	132	I32 retstack_ix;
90	I32 retstack_max;	133	I32 retstack_max;
		134	PMOP *curpm;
91	COP *curcop;	135	COP *curcop;
92	JMPENV *top_env;	136	JMPENV *top_env;
93		137
94	/* data associated with this coroutine (initial args) */	138	/* data associated with this coroutine (initial args) */
95	AV *args;	139	AV *args;
96	};	140	};
97		141
98	typedef struct coro *Coro__State;	142	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	143	typedef struct coro *Coro__State_or_hashref;
100		144
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 */	145	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *	146	STATIC AV *
109	clone_padlist (AV *protopadlist)	147	clone_padlist (pTHX_ AV *protopadlist)
110	{	148	{
111	AV *av;	149	AV *av;
112	I32 ix;	150	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	151	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	152	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
133	av_store (newpadlist, 1, (SV *) newpad);	171	av_store (newpadlist, 1, (SV *) newpad);
134		172
135	av = newAV (); /* will be @_ */	173	av = newAV (); /* will be @_ */
136	av_extend (av, 0);	174	av_extend (av, 0);
137	av_store (newpad, 0, (SV *) av);	175	av_store (newpad, 0, (SV *) av);
138	AvFLAGS (av) = AVf_REIFY;	176	AvREIFY_on (av);
139		177
140	for (ix = fpad; ix > 0; ix--)	178	for (ix = fpad; ix > 0; ix--)
141	{	179	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	180	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		181
143	if (namesv && namesv != &PL_sv_undef)	182	if (namesv && namesv != &PL_sv_undef)
144	{	183	{
145	char name = SvPVX (namesv); / XXX */	184	char name = SvPVX (namesv); / XXX */
		185
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	186	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
147	{ /* lexical from outside? */	187	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);	188	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	189	}
150	else	190	else
…		…
156	sv = (SV *) newAV ();	196	sv = (SV *) newAV ();
157	else if (*name == '%')	197	else if (*name == '%')
158	sv = (SV *) newHV ();	198	sv = (SV *) newHV ();
159	else	199	else
160	sv = NEWSV (0, 0);	200	sv = NEWSV (0, 0);
		201
		202	#ifdef SvPADBUSY
161	if (!SvPADBUSY (sv))	203	if (!SvPADBUSY (sv))
		204	#endif
162	SvPADMY_on (sv);	205	SvPADMY_on (sv);
		206
163	npad[ix] = sv;	207	npad[ix] = sv;
164	}	208	}
165	}	209	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	210	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
167	{	211	{
…		…
196	#endif	240	#endif
197		241
198	return newpadlist;	242	return newpadlist;
199	}	243	}
200		244
201	#ifdef MAY_FLUSH
202	STATIC void	245	STATIC void
203	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
204	{	247	{
205	/* may be during global destruction */	248	/* may be during global destruction */
206	if (SvREFCNT(padlist))	249	if (SvREFCNT (padlist))
207	{	250	{
208	I32 i = AvFILLp(padlist);	251	I32 i = AvFILLp (padlist);
209	while (i >= 0)	252	while (i >= 0)
210	{	253	{
211	SV **svp = av_fetch(padlist, i--, FALSE);	254	SV **svp = av_fetch (padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)	255	if (svp)
		256	{
		257	SV *sv;
		258	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
214	SvREFCNT_dec(sv);	259	SvREFCNT_dec (sv);
		260
		261	SvREFCNT_dec (*svp);
		262	}
215	}	263	}
216		264
217	SvREFCNT_dec((SV*)padlist);	265	SvREFCNT_dec ((SV*)padlist);
218	}	266	}
219	}	267	}
220	#endif	268
		269	STATIC int
		270	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		271	{
		272	AV *padlist;
		273	AV av = (AV )mg->mg_obj;
		274
		275	/* casting is fun. */
		276	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		277	free_padlist (aTHX_ padlist);
		278
		279	SvREFCNT_dec (av);
		280	}
		281
		282	#define PERL_MAGIC_coro PERL_MAGIC_ext
		283
		284	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221		285
222	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
223	STATIC void	287	STATIC void
224	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
225	{	289	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	290	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
227		291
228	if (he && AvFILLp ((AV )he) >= 0)	292	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	293	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
230	else	294	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	295	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232	}	296	}
233		297
234	STATIC void	298	STATIC void
235	put_padlist (CV *cv)	299	put_padlist (pTHX_ CV *cv)
236	{	300	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	301	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
238		302
239	if (SvTYPE (*he) != SVt_PVAV)	303	if (!mg)
240	{	304	{
241	SvREFCNT_dec (*he);	305	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		306	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		307	mg->mg_virtual = &vtbl_coro;
242	he = (SV )newAV ();	308	mg->mg_obj = (SV *)newAV ();
243	}	309	}
244		310
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	311	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	312	}
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		313
274	#define SB do {	314	#define SB do {
275	#define SE } while (0)	315	#define SE } while (0)
276		316
277	#define LOAD(state) load_state(aTHX_ (state));	317	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	318	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		319
280	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	320	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281		321
282	static void	322	static void
283	load_state(pTHX_ Coro__State c)	323	load_state(pTHX_ Coro__State c)
284	{	324	{
285	PL_dowarn = c->dowarn;	325	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	329	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	330	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	331	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	332	PL_op = c->op;
293	PL_curpad = c->curpad;	333	PL_curpad = c->curpad;
		334	PL_comppad = c->comppad;
		335	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	336	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	337	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	338	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	339	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	340	PL_tmps_ix = c->tmps_ix;
…		…
304	PL_scopestack_ix = c->scopestack_ix;	346	PL_scopestack_ix = c->scopestack_ix;
305	PL_scopestack_max = c->scopestack_max;	347	PL_scopestack_max = c->scopestack_max;
306	PL_savestack = c->savestack;	348	PL_savestack = c->savestack;
307	PL_savestack_ix = c->savestack_ix;	349	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	350	PL_savestack_max = c->savestack_max;
		351	#if PERL_VERSION < 9
309	PL_retstack = c->retstack;	352	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	353	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	354	PL_retstack_max = c->retstack_max;
		355	#endif
		356	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	357	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	358	PL_top_env = c->top_env;
314		359
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	360	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	361	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	370	{
326	AV padlist = (AV )POPs;	371	AV padlist = (AV )POPs;
327		372
328	if (padlist)	373	if (padlist)
329	{	374	{
330	put_padlist (cv); /* mark this padlist as available */	375	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	376	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	377	}
336		378
337	++CvDEPTH(cv);	379	++CvDEPTH(cv);
338	}	380	}
339		381
…		…
366	if (CxTYPE(cx) == CXt_SUB)	408	if (CxTYPE(cx) == CXt_SUB)
367	{	409	{
368	CV *cv = cx->blk_sub.cv;	410	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	411	if (CvDEPTH(cv))
370	{	412	{
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);	413	EXTEND (SP, CvDEPTH(cv)*2);
377		414
378	while (--CvDEPTH(cv))	415	while (--CvDEPTH(cv))
379	{	416	{
380	/* this tells the restore code to increment CvDEPTH */	417	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	420	}
384		421
385	PUSHs ((SV *)CvPADLIST(cv));	422	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	423	PUSHs ((SV *)cv);
387		424
388	get_padlist (cv); /* this is a monster */	425	get_padlist (aTHX_ cv); /* this is a monster */
389	}	426	}
390	}	427	}
		428	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	429	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	430	{
393	/* I never used formats, so how should I know how these are implemented? */	431	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	432	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	433	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	434	}
		435	#endif
397	}	436	}
398		437
399	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
400	break;	439	break;
401		440
…		…
418	c->curstack = PL_curstack;	457	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	458	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	459	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	460	c->op = PL_op;
422	c->curpad = PL_curpad;	461	c->curpad = PL_curpad;
		462	c->comppad = PL_comppad;
		463	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	464	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	465	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	466	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	467	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	468	c->tmps_ix = PL_tmps_ix;
…		…
433	c->scopestack_ix = PL_scopestack_ix;	474	c->scopestack_ix = PL_scopestack_ix;
434	c->scopestack_max = PL_scopestack_max;	475	c->scopestack_max = PL_scopestack_max;
435	c->savestack = PL_savestack;	476	c->savestack = PL_savestack;
436	c->savestack_ix = PL_savestack_ix;	477	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	478	c->savestack_max = PL_savestack_max;
		479	#if PERL_VERSION < 9
438	c->retstack = PL_retstack;	480	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	481	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	482	c->retstack_max = PL_retstack_max;
		483	#endif
		484	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	485	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	486	c->top_env = PL_top_env;
443	}	487	}
444		488
445	/*	489	/*
446	* allocate various perl stacks. This is an exact copy	490	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	491	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	492	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	493	* not usually need a lot of stackspace.
450	*/	494	*/
451	STATIC void	495	STATIC void
452	coro_init_stacks (pTHX)	496	coro_init_stacks (pTHX)
453	{	497	{
		498	LOCK;
		499
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	500	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	501	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	502	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	503	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		504
…		…
467		513
468	New(54,PL_markstack,16,I32);	514	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	515	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	516	PL_markstack_max = PL_markstack + 16;
471		517
		518	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	519	SET_MARK_OFFSET;
		520	#endif
473		521
474	New(54,PL_scopestack,16,I32);	522	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	523	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	524	PL_scopestack_max = 16;
477		525
478	New(54,PL_savestack,96,ANY);	526	New(54,PL_savestack,96,ANY);
479	PL_savestack_ix = 0;	527	PL_savestack_ix = 0;
480	PL_savestack_max = 96;	528	PL_savestack_max = 96;
481		529
		530	#if PERL_VERSION < 9
482	New(54,PL_retstack,8,OP*);	531	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	532	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	533	PL_retstack_max = 8;
		534	#endif
		535
		536	UNLOCK;
485	}	537	}
486		538
487	/*	539	/*
488	* destroy the stacks, the callchain etc...	540	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	541	*/
491	STATIC void	542	STATIC void
492	destroy_stacks(pTHX)	543	destroy_stacks(pTHX)
493	{	544	{
494	if (!IN_DESTRUCT)	545	if (!IN_DESTRUCT)
495	{	546	{
496	/* is this ugly, I ask? */	547	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	548	LEAVE_SCOPE (0);
498	LEAVE;
499		549
500	/* sure it is, but more important: is it correct?? :/ */	550	/* 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;	551	FREETMPS;
		552
		553	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	554	}
504		555
505	while (PL_curstackinfo->si_next)	556	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	557	PL_curstackinfo = PL_curstackinfo->si_next;
507		558
508	while (PL_curstackinfo)	559	while (PL_curstackinfo)
509	{	560	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	561	PERL_SI *p = PL_curstackinfo->si_prev;
511		562
512	{	563	{ /D//remove/
513	dSP;	564	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	565	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	566	PUTBACK; /* possibly superfluous */
516	}	567	}
517		568
518	if (!IN_DESTRUCT)	569	if (!IN_DESTRUCT)
519	{	570	{
520	dounwind(-1);	571	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	572	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	573	}
523		574
524	Safefree(PL_curstackinfo->si_cxstack);	575	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	576	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	577	PL_curstackinfo = p;
527	}	578	}
528		579
529	Safefree(PL_tmps_stack);	580	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	581	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	582	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	583	Safefree (PL_savestack);
		584	#if PERL_VERSION < 9
533	Safefree(PL_retstack);	585	Safefree (PL_retstack);
		586	#endif
534	}	587	}
535		588
536	static void	589	static void
537	allocate_stack (Coro__State ctx, int alloc)	590	allocate_stack (Coro__State ctx, int alloc)
538	{	591	{
…		…
541	New (0, stack, 1, coro_stack);	594	New (0, stack, 1, coro_stack);
542		595
543	stack->refcnt = 1;	596	stack->refcnt = 1;
544	stack->usecnt = 1;	597	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	598	stack->gencnt = ctx->gencnt = 0;
		599
546	if (alloc)	600	if (alloc)
547	{	601	{
548	#ifdef HAVE_MMAP	602	#if HAVE_MMAP
549	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	603	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);	604	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr == (void *)-1)	605	if (stack->sptr == (void *)-1)
552	#endif	606	#endif
553	{	607	{
554	/FIXME//D//* reasonable stack size! */	608	/FIXME//D//* reasonable stack size! */
555	stack->ssize = -4096 * sizeof (long);	609	stack->ssize = - (STACKSIZE * 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;	711	JMPENV coro_start_env;
656		712
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;	713	PL_top_env = &ctx->start_env;
662		714
663	ctx->cursp = 0;	715	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	716	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	717	CALLRUNOPS(aTHX);
666		718
667	abort ();	719	abort ();
668	}	720	}
669		721
670	STATIC void	722	STATIC void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	723	transfer (pTHX_ struct coro prev, struct coro next, int flags)
672	{	724	{
673	dSTACKLEVEL;	725	dSTACKLEVEL;
674	static struct coro *xnext;
675		726
676	if (prev != next)	727	if (prev != next)
677	{	728	{
678	xnext = next;
679
680	if (next->mainstack)	729	if (next->mainstack)
681	{	730	{
		731	LOCK;
682	SAVE (prev, flags);	732	SAVE (prev, flags);
683	LOAD (next);	733	LOAD (next);
		734	UNLOCK;
684		735
685	/* mark this state as in-use */	736	/* mark this state as in-use */
686	next->mainstack = 0;	737	next->mainstack = 0;
687	next->tmps_ix = -2;	738	next->tmps_ix = -2;
688		739
…		…
707	continue_coro, (void *)next,	758	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	759	next->stack->sptr, labs (next->stack->ssize));
709	}	760	}
710		761
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	762	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		763	prev->cursp = stacklevel;
712	/* don't add any code here */	764	/* don't add any code here */
713	}	765	}
714		766	else
		767	next->cursp = stacklevel;
715	}	768	}
716	else if (next->tmps_ix == -2)	769	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	770	croak ("tried to transfer to running coroutine");
718	else	771	else
719	{	772	{
		773	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	774	SAVE (prev, -1); /* first get rid of the old state */
		775	UNLOCK;
721		776
722	if (flags & TRANSFER_SAVE_CCTXT)	777	if (flags & TRANSFER_SAVE_CCTXT)
723	{	778	{
724	if (!prev->stack)	779	if (!prev->stack)
725	allocate_stack (prev, 0);	780	allocate_stack (prev, 0);
726		781
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	782	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	783	{
		784	PL_top_env = &next->start_env;
		785
729	setup_coro (next);	786	setup_coro (next);
		787	next->cursp = stacklevel;
730		788
731	prev->stack->refcnt++;	789	prev->stack->refcnt++;
732	prev->stack->usecnt++;	790	prev->stack->usecnt++;
733	next->stack = prev->stack;	791	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	792	next->gencnt = prev->gencnt;
735	}	793	}
736	else	794	else
737	{	795	{
		796	assert (!next->stack);
738	allocate_stack (next, 1);	797	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	798	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	799	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	800	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	801	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		802	prev->cursp = stacklevel;
743	/* don't add any code here */	803	/* don't add any code here */
744	}	804	}
745	}	805	}
746	else	806	else
		807	{
747	setup_coro (next);	808	setup_coro (next);
		809	next->cursp = stacklevel;
		810	}
748	}	811	}
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	}	812	}
757	}
758		813
759	static struct coro *	814	LOCK;
760	sv_to_coro (SV arg, const char funcname, const char *varname)	815	if (coro_mortal)
761	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763	{	816	{
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	817	SvREFCNT_dec (coro_mortal);
765		818	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	}	819	}
771		820	UNLOCK;
		821	}
		822
		823	#define SV_CORO(sv,func) \
		824	do { \
		825	if (SvROK (sv)) \
		826	sv = SvRV (sv); \
		827	\
		828	if (SvTYPE (sv) == SVt_PVHV) \
		829	{ \
		830	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		831	\
		832	if (!he) \
		833	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		834	\
		835	(sv) = SvRV (HeVAL(he)); \
		836	} \
		837	\
772	/* must also be changed inside Coro::Cont::yield */	838	/* must also be changed inside Coro::Cont::yield */ \
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))	839	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);	840	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778	/NORETURN/	841	\
779	}	842	} while(0)
		843
		844	#define SvSTATE(sv) (struct coro *)SvIV (sv)
780		845
781	static void	846	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	847	api_transfer(pTHX_ SV prev, SV next, int flags)
783	{	848	{
784	transfer(aTHX_	849	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	850	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	851
787	flags);	852	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	853	}
789		854
790	/ Coro ******************************************************************/	855	/ Coro ******************************************************************/
791		856
792	#define PRIO_MAX 3	857	#define PRIO_MAX 3
…		…
800	static GV coro_current, coro_idle;	865	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	866	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	867	static int coro_nready;
803		868
804	static void	869	static void
805	coro_enq (SV *sv)	870	coro_enq (pTHX_ SV *sv)
806	{	871	{
807	if (SvROK (sv))	872	SV **xprio;
808	{	873	int prio;
809	SV *hv = SvRV (sv);	874
810	if (SvTYPE (hv) == SVt_PVHV)	875	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");	876	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		877
		878	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		879	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		880
		881	prio = prio > PRIO_MAX ? PRIO_MAX
		882	: prio < PRIO_MIN ? PRIO_MIN
		883	: prio;
		884
		885	av_push (coro_ready [prio - PRIO_MIN], sv);
		886	coro_nready++;
827	}	887	}
828		888
829	static SV *	889	static SV *
830	coro_deq (int min_prio)	890	coro_deq (pTHX_ int min_prio)
831	{	891	{
832	int prio = PRIO_MAX - PRIO_MIN;	892	int prio = PRIO_MAX - PRIO_MIN;
833		893
834	min_prio -= PRIO_MIN;	894	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	895	if (min_prio < 0)
…		…
846	}	906	}
847		907
848	static void	908	static void
849	api_ready (SV *coro)	909	api_ready (SV *coro)
850	{	910	{
		911	dTHX;
		912
		913	if (SvROK (coro))
		914	coro = SvRV (coro);
		915
		916	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	917	coro_enq (aTHX_ SvREFCNT_inc (coro));
		918	UNLOCK;
852	}	919	}
853		920
854	static void	921	static void
855	api_schedule (int cede)	922	api_schedule (void)
856	{	923	{
		924	dTHX;
		925
857	SV prev, next;	926	SV prev, next;
858		927
		928	LOCK;
		929
859	prev = GvSV (coro_current);	930	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	931	next = coro_deq (aTHX_ PRIO_MIN);
865		932
866	if (!next)	933	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	934	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		935
869	GvSV (coro_current) = SvREFCNT_inc (next);	936	/* free this only after the transfer */
870	transfer (aTHX_	937	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	938	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	939
		940	SvRV (GvSV (coro_current)) = next;
		941
		942	SV_CORO (next, "Coro::schedule");
		943
		944	UNLOCK;
		945
		946	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	947	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	948	}
875	SvREFCNT_dec (prev);	949
		950	static void
		951	api_cede (void)
		952	{
		953	dTHX;
		954
		955	LOCK;
		956	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		957	UNLOCK;
		958
		959	api_schedule ();
876	}	960	}
877		961
878	MODULE = Coro::State PACKAGE = Coro::State	962	MODULE = Coro::State PACKAGE = Coro::State
879		963
880	PROTOTYPES: ENABLE	964	PROTOTYPES: ENABLE
881		965
882	BOOT:	966	BOOT:
883	{ /* {} necessary for stoopid perl-5.6.x */	967	{ /* {} necessary for stoopid perl-5.6.x */
		968	#ifdef USE_ITHREADS
		969	MUTEX_INIT (&coro_mutex);
		970	#endif
		971
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	972	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	973	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	974	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		975
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	976	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	977	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	978	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	979	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895		980
896	main_mainstack = PL_mainstack;	981	main_mainstack = PL_mainstack;
897		982
898	coroapi.ver = CORO_API_VERSION;	983	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	984	coroapi.transfer = api_transfer;
…		…
907	Coro__State coro;	992	Coro__State coro;
908		993
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	994	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");	995	croak ("Coro::State::_newprocess expects an arrayref");
911		996
912	New (0, coro, 1, struct coro);	997	Newz (0, coro, 1, struct coro);
913		998
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	999	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915	coro->mainstack = 0; /* actual work is done inside transfer */	1000	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	1001	/coro->stack = 0;/
		1002
		1003	/* same as JMPENV_BOOTSTRAP */
		1004	/* we might be able to recycle start_env, but safe is safe */
		1005	/Zero(&coro->start_env, 1, JMPENV);/
		1006	coro->start_env.je_ret = -1;
		1007	coro->start_env.je_mustcatch = TRUE;
917		1008
918	RETVAL = coro;	1009	RETVAL = coro;
919	OUTPUT:	1010	OUTPUT:
920	RETVAL	1011	RETVAL
921		1012
922	void	1013	void
923	transfer(prev, next, flags)	1014	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	1015	SV *prev
925	Coro::State_or_hashref next	1016	SV *next
926	int flags	1017	int flags
927	PROTOTYPE: @	1018	PROTOTYPE: @
928	CODE:	1019	CODE:
929	PUTBACK;	1020	PUTBACK;
		1021	SV_CORO (next, "Coro::transfer");
		1022	SV_CORO (prev, "Coro::transfer");
930	transfer (aTHX_ prev, next, flags);	1023	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	1024	SPAGAIN;
932		1025
933	void	1026	void
934	DESTROY(coro)	1027	DESTROY(coro)
935	Coro::State coro	1028	Coro::State coro
…		…
938	if (coro->mainstack && coro->mainstack != main_mainstack)	1031	if (coro->mainstack && coro->mainstack != main_mainstack)
939	{	1032	{
940	struct coro temp;	1033	struct coro temp;
941		1034
942	PUTBACK;	1035	PUTBACK;
943	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1036	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944	LOAD(aTHX_ coro);	1037	LOAD (aTHX_ coro);
945	SPAGAIN;	1038	SPAGAIN;
946		1039
947	destroy_stacks (aTHX);	1040	destroy_stacks (aTHX);
948		1041
949	LOAD((&temp)); /* this will get rid of defsv etc.. */	1042	LOAD ((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;	1043	SPAGAIN;
951		1044
952	coro->mainstack = 0;	1045	coro->mainstack = 0;
953	}	1046	}
954		1047
955	deallocate_stack (coro);	1048	deallocate_stack (coro);
956		1049	SvREFCNT_dec (coro->args);
957	Safefree (coro);	1050	Safefree (coro);
958
959	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965		1051
966	void	1052	void
967	_exit(code)	1053	_exit(code)
968	int code	1054	int code
969	PROTOTYPE: $	1055	PROTOTYPE: $
970	CODE:	1056	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1057	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1058
979	MODULE = Coro::State PACKAGE = Coro::Cont	1059	MODULE = Coro::State PACKAGE = Coro::Cont
980		1060
981	# this is slightly dirty (should expose a c-level api)	1061	# this is slightly dirty (should expose a c-level api)
982		1062
983	void	1063	void
984	yield(...)	1064	yield(...)
985	PROTOTYPE: @	1065	PROTOTYPE: @
986	CODE:	1066	CODE:
987	static SV *returnstk;	1067	SV *yieldstack;
988	SV *sv;	1068	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1069	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1070	struct coro prev, next;
991		1071
992	if (!returnstk)	1072	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1073	(HV *)SvRV (GvSV (coro_current)),
		1074	"yieldstack", sizeof ("yieldstack") - 1,
		1075	0
		1076	);
994		1077
995	/* set up @_ -- ugly */	1078	/* set up @_ -- ugly */
996	av_clear (defav);	1079	av_clear (defav);
997	av_fill (defav, items - 1);	1080	av_fill (defav, items - 1);
998	while (items--)	1081	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1082	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1083
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1084	sv = av_pop ((AV *)SvRV (yieldstack));
1003	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1085	prev = (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)));	1086	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
1005	SvREFCNT_dec (sv);	1087	SvREFCNT_dec (sv);
1006		1088
1007	transfer(aTHX_ prev, next, 0);	1089	transfer (aTHX_ prev, next, 0);
1008		1090
1009	MODULE = Coro::State PACKAGE = Coro	1091	MODULE = Coro::State PACKAGE = Coro
1010		1092
1011	# this is slightly dirty (should expose a c-level api)	1093	# this is slightly dirty (should expose a c-level api)
1012		1094
…		…
1030		1112
1031	{	1113	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1114	SV *sv = perl_get_sv("Coro::API", 1);
1033		1115
1034	coroapi.schedule = api_schedule;	1116	coroapi.schedule = api_schedule;
		1117	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1118	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1119	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1120	coroapi.current = coro_current;
1038		1121
1039	GCoroAPI = &coroapi;	1122	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1123	sv_setiv(sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1124	SvREADONLY_on(sv);
1042	}	1125	}
1043	}	1126	}
1044		1127
		1128	#if !PERL_MICRO
		1129
1045	void	1130	void
1046	ready(self)	1131	ready(self)
1047	SV * self	1132	SV * self
		1133	PROTOTYPE: $
1048	CODE:	1134	CODE:
1049	api_ready (self);	1135	api_ready (self);
		1136
		1137	#endif
1050		1138
1051	int	1139	int
1052	nready(...)	1140	nready(...)
1053	PROTOTYPE:	1141	PROTOTYPE:
1054	CODE:	1142	CODE:
…		…
1057	RETVAL	1145	RETVAL
1058		1146
1059	void	1147	void
1060	schedule(...)	1148	schedule(...)
1061	PROTOTYPE:	1149	PROTOTYPE:
1062	ALIAS:
1063	cede = 1
1064	CODE:	1150	CODE:
1065	api_schedule (ix);	1151	api_schedule ();
1066		1152
		1153	void
		1154	cede(...)
		1155	PROTOTYPE:
		1156	CODE:
		1157	api_cede ();
		1158
		1159	# and these are hacks
		1160	SV *
		1161	_aio_get_state ()
		1162	CODE:
		1163	{
		1164	struct {
		1165	int errorno;
		1166	int laststype;
		1167	int laststatval;
		1168	Stat_t statcache;
		1169	} data;
		1170
		1171	data.errorno = errno;
		1172	data.laststype = PL_laststype;
		1173	data.laststatval = PL_laststatval;
		1174	data.statcache = PL_statcache;
		1175
		1176	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1177	}
		1178	OUTPUT:
		1179	RETVAL
		1180
		1181	void
		1182	_aio_set_state (char *data_)
		1183	PROTOTYPE: $
		1184	CODE:
		1185	{
		1186	struct {
		1187	int errorno;
		1188	int laststype;
		1189	int laststatval;
		1190	Stat_t statcache;
		1191	} data = (void )data_;
		1192
		1193	errno = data->errorno;
		1194	PL_laststype = data->laststype;
		1195	PL_laststatval = data->laststatval;
		1196	PL_statcache = data->statcache;
		1197	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs. Revision 1.74 by root, Mon Oct 23 22:49:09 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs.
Revision 1.74 by root, Mon Oct 23 22:49:09 2006 UTC