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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.39 by root, Sun Nov 25 20:04:05 2001 UTC vs.
Revision 1.71 by root, Wed Jan 25 21:43:58 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>
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
57	/* optionally saved, might be zero */	98	/* optionally saved, might be zero */
58	AV *defav;	99	AV *defav;
59	SV *defsv;	100	SV *defsv;
60	SV *errsv;	101	SV *errsv;
61	/* TODO: PL_pmop might be nice && effortless to save. */
62		102
63	/* saved global state not related to stacks */	103	/* saved global state not related to stacks */
64	U8 dowarn;	104	U8 dowarn;
65	I32 in_eval;	105	I32 in_eval;
66		106
…		…
69	AV *curstack;	109	AV *curstack;
70	AV *mainstack;	110	AV *mainstack;
71	SV **stack_sp;	111	SV **stack_sp;
72	OP *op;	112	OP *op;
73	SV **curpad;	113	SV **curpad;
		114	AV *comppad;
		115	CV *compcv;
74	SV **stack_base;	116	SV **stack_base;
75	SV **stack_max;	117	SV **stack_max;
76	SV **tmps_stack;	118	SV **tmps_stack;
77	I32 tmps_floor;	119	I32 tmps_floor;
78	I32 tmps_ix;	120	I32 tmps_ix;
…		…
87	I32 savestack_ix;	129	I32 savestack_ix;
88	I32 savestack_max;	130	I32 savestack_max;
89	OP **retstack;	131	OP **retstack;
90	I32 retstack_ix;	132	I32 retstack_ix;
91	I32 retstack_max;	133	I32 retstack_max;
		134	PMOP *curpm;
92	COP *curcop;	135	COP *curcop;
93	JMPENV *top_env;	136	JMPENV *top_env;
94		137
95	/* data associated with this coroutine (initial args) */	138	/* data associated with this coroutine (initial args) */
96	AV *args;	139	AV *args;
97	};	140	};
98		141
99	typedef struct coro *Coro__State;	142	typedef struct coro *Coro__State;
100	typedef struct coro *Coro__State_or_hashref;	143	typedef struct coro *Coro__State_or_hashref;
101		144
102	static AV main_mainstack; / used to differentiate between $main and others */
103	static HV *coro_state_stash;
104	static SV *ucoro_state_sv;
105	static U32 ucoro_state_hash;
106	static HV *padlist_cache;
107	static SV coro_mortal; / will be freed after next transfer */
108
109	/* mostly copied from op.c:cv_clone2 */	145	/* mostly copied from op.c:cv_clone2 */
110	STATIC AV *	146	STATIC AV *
111	clone_padlist (AV *protopadlist)	147	clone_padlist (pTHX_ AV *protopadlist)
112	{	148	{
113	AV *av;	149	AV *av;
114	I32 ix;	150	I32 ix;
115	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	151	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
116	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	152	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
135	av_store (newpadlist, 1, (SV *) newpad);	171	av_store (newpadlist, 1, (SV *) newpad);
136		172
137	av = newAV (); /* will be @_ */	173	av = newAV (); /* will be @_ */
138	av_extend (av, 0);	174	av_extend (av, 0);
139	av_store (newpad, 0, (SV *) av);	175	av_store (newpad, 0, (SV *) av);
140	AvFLAGS (av) = AVf_REIFY;	176	AvREIFY_on (av);
141		177
142	for (ix = fpad; ix > 0; ix--)	178	for (ix = fpad; ix > 0; ix--)
143	{	179	{
144	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	180	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		181
145	if (namesv && namesv != &PL_sv_undef)	182	if (namesv && namesv != &PL_sv_undef)
146	{	183	{
147	char name = SvPVX (namesv); / XXX */	184	char name = SvPVX (namesv); / XXX */
		185
148	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	186	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
149	{ /* lexical from outside? */	187	{ /* lexical from outside? */
150	npad[ix] = SvREFCNT_inc (ppad[ix]);	188	npad[ix] = SvREFCNT_inc (ppad[ix]);
151	}	189	}
152	else	190	else
…		…
158	sv = (SV *) newAV ();	196	sv = (SV *) newAV ();
159	else if (*name == '%')	197	else if (*name == '%')
160	sv = (SV *) newHV ();	198	sv = (SV *) newHV ();
161	else	199	else
162	sv = NEWSV (0, 0);	200	sv = NEWSV (0, 0);
		201
		202	#ifdef SvPADBUSY
163	if (!SvPADBUSY (sv))	203	if (!SvPADBUSY (sv))
		204	#endif
164	SvPADMY_on (sv);	205	SvPADMY_on (sv);
		206
165	npad[ix] = sv;	207	npad[ix] = sv;
166	}	208	}
167	}	209	}
168	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	210	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
169	{	211	{
…		…
198	#endif	240	#endif
199		241
200	return newpadlist;	242	return newpadlist;
201	}	243	}
202		244
203	#ifdef MAY_FLUSH
204	STATIC void	245	STATIC void
205	free_padlist (AV *padlist)	246	free_padlist (pTHX_ AV *padlist)
206	{	247	{
207	/* may be during global destruction */	248	/* may be during global destruction */
208	if (SvREFCNT(padlist))	249	if (SvREFCNT (padlist))
209	{	250	{
210	I32 i = AvFILLp(padlist);	251	I32 i = AvFILLp (padlist);
211	while (i >= 0)	252	while (i >= 0)
212	{	253	{
213	SV **svp = av_fetch(padlist, i--, FALSE);	254	SV **svp = av_fetch (padlist, i--, FALSE);
214	SV sv = svp ? svp : Nullsv;
215	if (sv)	255	if (svp)
		256	{
		257	SV *sv;
		258	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
216	SvREFCNT_dec(sv);	259	SvREFCNT_dec (sv);
		260
		261	SvREFCNT_dec (*svp);
		262	}
217	}	263	}
218		264
219	SvREFCNT_dec((SV*)padlist);	265	SvREFCNT_dec ((SV*)padlist);
220	}	266	}
221	}	267	}
222	#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};
223		285
224	/* the next two functions merely cache the padlists */	286	/* the next two functions merely cache the padlists */
225	STATIC void	287	STATIC void
226	get_padlist (CV *cv)	288	get_padlist (pTHX_ CV *cv)
227	{	289	{
228	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	290	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
229		291
230	if (he && AvFILLp ((AV )he) >= 0)	292	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
231	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	293	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
232	else	294	else
233	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	295	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
234	}	296	}
235		297
236	STATIC void	298	STATIC void
237	put_padlist (CV *cv)	299	put_padlist (pTHX_ CV *cv)
238	{	300	{
239	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	301	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
240		302
241	if (SvTYPE (*he) != SVt_PVAV)	303	if (!mg)
242	{	304	{
243	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;
244	he = (SV )newAV ();	308	mg->mg_obj = (SV *)newAV ();
245	}	309	}
246		310
247	av_push ((AV )he, (SV *)CvPADLIST (cv));	311	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
248	}	312	}
249
250	#ifdef MAY_FLUSH
251	STATIC void
252	flush_padlist_cache ()
253	{
254	HV *hv = padlist_cache;
255	padlist_cache = newHV ();
256
257	if (hv_iterinit (hv))
258	{
259	HE *he;
260	AV *padlist;
261
262	while (!!(he = hv_iternext (hv)))
263	{
264	AV av = (AV )HeVAL(he);
265
266	/* casting is fun. */
267	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
268	free_padlist (padlist);
269	}
270	}
271
272	SvREFCNT_dec (hv);
273	}
274	#endif
275		313
276	#define SB do {	314	#define SB do {
277	#define SE } while (0)	315	#define SE } while (0)
278		316
279	#define LOAD(state) load_state(aTHX_ (state));	317	#define LOAD(state) load_state(aTHX_ (state));
280	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	318	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
281		319
282	#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
283		321
284	static void	322	static void
285	load_state(pTHX_ Coro__State c)	323	load_state(pTHX_ Coro__State c)
286	{	324	{
287	PL_dowarn = c->dowarn;	325	PL_dowarn = c->dowarn;
…		…
291	PL_curstack = c->curstack;	329	PL_curstack = c->curstack;
292	PL_mainstack = c->mainstack;	330	PL_mainstack = c->mainstack;
293	PL_stack_sp = c->stack_sp;	331	PL_stack_sp = c->stack_sp;
294	PL_op = c->op;	332	PL_op = c->op;
295	PL_curpad = c->curpad;	333	PL_curpad = c->curpad;
		334	PL_comppad = c->comppad;
		335	PL_compcv = c->compcv;
296	PL_stack_base = c->stack_base;	336	PL_stack_base = c->stack_base;
297	PL_stack_max = c->stack_max;	337	PL_stack_max = c->stack_max;
298	PL_tmps_stack = c->tmps_stack;	338	PL_tmps_stack = c->tmps_stack;
299	PL_tmps_floor = c->tmps_floor;	339	PL_tmps_floor = c->tmps_floor;
300	PL_tmps_ix = c->tmps_ix;	340	PL_tmps_ix = c->tmps_ix;
…		…
306	PL_scopestack_ix = c->scopestack_ix;	346	PL_scopestack_ix = c->scopestack_ix;
307	PL_scopestack_max = c->scopestack_max;	347	PL_scopestack_max = c->scopestack_max;
308	PL_savestack = c->savestack;	348	PL_savestack = c->savestack;
309	PL_savestack_ix = c->savestack_ix;	349	PL_savestack_ix = c->savestack_ix;
310	PL_savestack_max = c->savestack_max;	350	PL_savestack_max = c->savestack_max;
		351	#ifdef PL_retstack
311	PL_retstack = c->retstack;	352	PL_retstack = c->retstack;
312	PL_retstack_ix = c->retstack_ix;	353	PL_retstack_ix = c->retstack_ix;
313	PL_retstack_max = c->retstack_max;	354	PL_retstack_max = c->retstack_max;
		355	#endif
		356	PL_curpm = c->curpm;
314	PL_curcop = c->curcop;	357	PL_curcop = c->curcop;
315	PL_top_env = c->top_env;	358	PL_top_env = c->top_env;
316		359
317	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	360	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	361	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
327	{	370	{
328	AV padlist = (AV )POPs;	371	AV padlist = (AV )POPs;
329		372
330	if (padlist)	373	if (padlist)
331	{	374	{
332	put_padlist (cv); /* mark this padlist as available */	375	put_padlist (aTHX_ cv); /* mark this padlist as available */
333	CvPADLIST(cv) = padlist;	376	CvPADLIST(cv) = padlist;
334	#ifdef USE_THREADS
335	/CvOWNER(cv) = (struct perl_thread )POPs;*/
336	#endif
337	}	377	}
338		378
339	++CvDEPTH(cv);	379	++CvDEPTH(cv);
340	}	380	}
341		381
…		…
368	if (CxTYPE(cx) == CXt_SUB)	408	if (CxTYPE(cx) == CXt_SUB)
369	{	409	{
370	CV *cv = cx->blk_sub.cv;	410	CV *cv = cx->blk_sub.cv;
371	if (CvDEPTH(cv))	411	if (CvDEPTH(cv))
372	{	412	{
373	#ifdef USE_THREADS
374	/XPUSHs ((SV )CvOWNER(cv));*/
375	/CvOWNER(cv) = 0;/
376	/error must unlock this cv etc.. etc.../
377	#endif
378	EXTEND (SP, CvDEPTH(cv)*2);	413	EXTEND (SP, CvDEPTH(cv)*2);
379		414
380	while (--CvDEPTH(cv))	415	while (--CvDEPTH(cv))
381	{	416	{
382	/* this tells the restore code to increment CvDEPTH */	417	/* this tells the restore code to increment CvDEPTH */
…		…
385	}	420	}
386		421
387	PUSHs ((SV *)CvPADLIST(cv));	422	PUSHs ((SV *)CvPADLIST(cv));
388	PUSHs ((SV *)cv);	423	PUSHs ((SV *)cv);
389		424
390	get_padlist (cv); /* this is a monster */	425	get_padlist (aTHX_ cv); /* this is a monster */
391	}	426	}
392	}	427	}
		428	#ifdef CXt_FORMAT
393	else if (CxTYPE(cx) == CXt_FORMAT)	429	else if (CxTYPE(cx) == CXt_FORMAT)
394	{	430	{
395	/* 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? */
396	/* my bold guess is as a simple, plain sub... */	432	/* my bold guess is as a simple, plain sub... */
397	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");
398	}	434	}
		435	#endif
399	}	436	}
400		437
401	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
402	break;	439	break;
403		440
…		…
420	c->curstack = PL_curstack;	457	c->curstack = PL_curstack;
421	c->mainstack = PL_mainstack;	458	c->mainstack = PL_mainstack;
422	c->stack_sp = PL_stack_sp;	459	c->stack_sp = PL_stack_sp;
423	c->op = PL_op;	460	c->op = PL_op;
424	c->curpad = PL_curpad;	461	c->curpad = PL_curpad;
		462	c->comppad = PL_comppad;
		463	c->compcv = PL_compcv;
425	c->stack_base = PL_stack_base;	464	c->stack_base = PL_stack_base;
426	c->stack_max = PL_stack_max;	465	c->stack_max = PL_stack_max;
427	c->tmps_stack = PL_tmps_stack;	466	c->tmps_stack = PL_tmps_stack;
428	c->tmps_floor = PL_tmps_floor;	467	c->tmps_floor = PL_tmps_floor;
429	c->tmps_ix = PL_tmps_ix;	468	c->tmps_ix = PL_tmps_ix;
…		…
435	c->scopestack_ix = PL_scopestack_ix;	474	c->scopestack_ix = PL_scopestack_ix;
436	c->scopestack_max = PL_scopestack_max;	475	c->scopestack_max = PL_scopestack_max;
437	c->savestack = PL_savestack;	476	c->savestack = PL_savestack;
438	c->savestack_ix = PL_savestack_ix;	477	c->savestack_ix = PL_savestack_ix;
439	c->savestack_max = PL_savestack_max;	478	c->savestack_max = PL_savestack_max;
		479	#ifdef PL_retstack
440	c->retstack = PL_retstack;	480	c->retstack = PL_retstack;
441	c->retstack_ix = PL_retstack_ix;	481	c->retstack_ix = PL_retstack_ix;
442	c->retstack_max = PL_retstack_max;	482	c->retstack_max = PL_retstack_max;
		483	#endif
		484	c->curpm = PL_curpm;
443	c->curcop = PL_curcop;	485	c->curcop = PL_curcop;
444	c->top_env = PL_top_env;	486	c->top_env = PL_top_env;
445	}	487	}
446		488
447	/*	489	/*
448	* allocate various perl stacks. This is an exact copy	490	* allocate various perl stacks. This is an exact copy
449	* of perl.c:init_stacks, except that it uses less memory	491	* of perl.c:init_stacks, except that it uses less memory
450	* on the assumption that coroutines do not usually need	492	* on the (sometimes correct) assumption that coroutines do
451	* a lot of stackspace.	493	* not usually need a lot of stackspace.
452	*/	494	*/
453	STATIC void	495	STATIC void
454	coro_init_stacks (pTHX)	496	coro_init_stacks (pTHX)
455	{	497	{
		498	LOCK;
		499
456	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	500	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
457	PL_curstackinfo->si_type = PERLSI_MAIN;	501	PL_curstackinfo->si_type = PERLSI_MAIN;
458	PL_curstack = PL_curstackinfo->si_stack;	502	PL_curstack = PL_curstackinfo->si_stack;
459	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	503	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460		504
…		…
469		513
470	New(54,PL_markstack,16,I32);	514	New(54,PL_markstack,16,I32);
471	PL_markstack_ptr = PL_markstack;	515	PL_markstack_ptr = PL_markstack;
472	PL_markstack_max = PL_markstack + 16;	516	PL_markstack_max = PL_markstack + 16;
473		517
		518	#ifdef SET_MARK_OFFSET
474	SET_MARK_OFFSET;	519	SET_MARK_OFFSET;
		520	#endif
475		521
476	New(54,PL_scopestack,16,I32);	522	New(54,PL_scopestack,16,I32);
477	PL_scopestack_ix = 0;	523	PL_scopestack_ix = 0;
478	PL_scopestack_max = 16;	524	PL_scopestack_max = 16;
479		525
480	New(54,PL_savestack,96,ANY);	526	New(54,PL_savestack,96,ANY);
481	PL_savestack_ix = 0;	527	PL_savestack_ix = 0;
482	PL_savestack_max = 96;	528	PL_savestack_max = 96;
483		529
		530	#ifdef PL_retstack
484	New(54,PL_retstack,8,OP*);	531	New(54,PL_retstack,8,OP*);
485	PL_retstack_ix = 0;	532	PL_retstack_ix = 0;
486	PL_retstack_max = 8;	533	PL_retstack_max = 8;
		534	#endif
		535
		536	UNLOCK;
487	}	537	}
488		538
489	/*	539	/*
490	* destroy the stacks, the callchain etc...	540	* destroy the stacks, the callchain etc...
491	* still there is a memleak of 128 bytes...
492	*/	541	*/
493	STATIC void	542	STATIC void
494	destroy_stacks(pTHX)	543	destroy_stacks(pTHX)
495	{	544	{
496	if (!IN_DESTRUCT)	545	if (!IN_DESTRUCT)
497	{	546	{
498	/* is this ugly, I ask? */	547	/* is this ugly, I ask? */
499	while (PL_scopestack_ix)	548	LEAVE_SCOPE (0);
500	LEAVE;
501		549
502	/* sure it is, but more important: is it correct?? :/ */	550	/* sure it is, but more important: is it correct?? :/ */
503	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
504	FREETMPS;	551	FREETMPS;
		552
		553	/POPSTACK_TO (PL_mainstack);//D//use/
505	}	554	}
506		555
507	while (PL_curstackinfo->si_next)	556	while (PL_curstackinfo->si_next)
508	PL_curstackinfo = PL_curstackinfo->si_next;	557	PL_curstackinfo = PL_curstackinfo->si_next;
509		558
510	while (PL_curstackinfo)	559	while (PL_curstackinfo)
511	{	560	{
512	PERL_SI *p = PL_curstackinfo->si_prev;	561	PERL_SI *p = PL_curstackinfo->si_prev;
513		562
514	{	563	{ /D//remove/
515	dSP;	564	dSP;
516	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	565	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
517	PUTBACK; /* possibly superfluous */	566	PUTBACK; /* possibly superfluous */
518	}	567	}
519		568
520	if (!IN_DESTRUCT)	569	if (!IN_DESTRUCT)
521	{	570	{
522	dounwind(-1);	571	dounwind (-1);/D//remove/
523	SvREFCNT_dec(PL_curstackinfo->si_stack);	572	SvREFCNT_dec (PL_curstackinfo->si_stack);
524	}	573	}
525		574
526	Safefree(PL_curstackinfo->si_cxstack);	575	Safefree (PL_curstackinfo->si_cxstack);
527	Safefree(PL_curstackinfo);	576	Safefree (PL_curstackinfo);
528	PL_curstackinfo = p;	577	PL_curstackinfo = p;
529	}	578	}
530		579
531	Safefree(PL_tmps_stack);	580	Safefree (PL_tmps_stack);
532	Safefree(PL_markstack);	581	Safefree (PL_markstack);
533	Safefree(PL_scopestack);	582	Safefree (PL_scopestack);
534	Safefree(PL_savestack);	583	Safefree (PL_savestack);
		584	#ifdef PL_retstack
535	Safefree(PL_retstack);	585	Safefree (PL_retstack);
		586	#endif
536	}	587	}
537		588
538	static void	589	static void
539	allocate_stack (Coro__State ctx, int alloc)	590	allocate_stack (Coro__State ctx, int alloc)
540	{	591	{
…		…
543	New (0, stack, 1, coro_stack);	594	New (0, stack, 1, coro_stack);
544		595
545	stack->refcnt = 1;	596	stack->refcnt = 1;
546	stack->usecnt = 1;	597	stack->usecnt = 1;
547	stack->gencnt = ctx->gencnt = 0;	598	stack->gencnt = ctx->gencnt = 0;
		599
548	if (alloc)	600	if (alloc)
549	{	601	{
550	#if HAVE_MMAP	602	#if HAVE_MMAP
551	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 */
552	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	604	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
553	if (stack->sptr == (void *)-1)	605	if (stack->sptr == (void *)-1)
554	#endif	606	#endif
555	{	607	{
556	/FIXME//D//* reasonable stack size! */	608	/FIXME//D//* reasonable stack size! */
557	stack->ssize = -4096 * sizeof (long);	609	stack->ssize = - (STACKSIZE * sizeof (long));
558	New (0, stack->sptr, 4096, long);	610	New (0, stack->sptr, STACKSIZE, long);
559	}	611	}
560	}	612	}
561	else	613	else
562	stack->sptr = 0;	614	stack->sptr = 0;
563		615
…		…
577	{	629	{
578	#ifdef HAVE_MMAP	630	#ifdef HAVE_MMAP
579	if (stack->ssize > 0 && stack->sptr)	631	if (stack->ssize > 0 && stack->sptr)
580	munmap (stack->sptr, stack->ssize);	632	munmap (stack->sptr, stack->ssize);
581	else	633	else
582	#else	634	#endif
583	Safefree (stack->sptr);	635	Safefree (stack->sptr);
584	#endif	636
585	Safefree (stack);	637	Safefree (stack);
586	}	638	}
587	else if (ctx->gencnt == stack->gencnt)	639	else if (ctx->gencnt == stack->gencnt)
588	--stack->usecnt;	640	--stack->usecnt;
589	}	641	}
…		…
593	setup_coro (void *arg)	645	setup_coro (void *arg)
594	{	646	{
595	/*	647	/*
596	* emulate part of the perl startup here.	648	* emulate part of the perl startup here.
597	*/	649	*/
		650	dTHX;
598	dSP;	651	dSP;
599	Coro__State ctx = (Coro__State)arg;	652	Coro__State ctx = (Coro__State)arg;
600	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	653	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
601		654
602	coro_init_stacks (aTHX);	655	coro_init_stacks (aTHX);
603	/PL_curcop = 0;/	656	/PL_curcop = 0;/
604	/PL_in_eval = PL_in_eval;/ /* inherit */	657	/PL_in_eval = PL_in_eval;/ /* inherit */
605	SvREFCNT_dec (GvAV (PL_defgv));	658	SvREFCNT_dec (GvAV (PL_defgv));
606	GvAV (PL_defgv) = ctx->args;	659	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
607		660
608	SPAGAIN;	661	SPAGAIN;
609		662
610	if (ctx->stack)	663	if (ctx->stack)
611	{	664	{
…		…
638	* that doesn't matter, though, since it is only	691	* that doesn't matter, though, since it is only
639	* pp_nextstate and we never return...	692	* pp_nextstate and we never return...
640	* ah yes, and I don't care anyways ;)	693	* ah yes, and I don't care anyways ;)
641	*/	694	*/
642	PUTBACK;	695	PUTBACK;
643	PL_op = pp_entersub();	696	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
644	SPAGAIN;	697	SPAGAIN;
645		698
646	ENTER; /* necessary e.g. for dounwind */	699	ENTER; /* necessary e.g. for dounwind */
647	}	700	}
648	}	701	}
…		…
651	continue_coro (void *arg)	704	continue_coro (void *arg)
652	{	705	{
653	/*	706	/*
654	* this is a _very_ stripped down perl interpreter ;)	707	* this is a _very_ stripped down perl interpreter ;)
655	*/	708	*/
		709	dTHX;
656	Coro__State ctx = (Coro__State)arg;	710	Coro__State ctx = (Coro__State)arg;
657	JMPENV coro_start_env;	711	JMPENV coro_start_env;
658		712
659	/* same as JMPENV_BOOTSTRAP */
660	Zero(&coro_start_env, 1, JMPENV);
661	coro_start_env.je_ret = -1;
662	coro_start_env.je_mustcatch = TRUE;
663	PL_top_env = &coro_start_env;	713	PL_top_env = &ctx->start_env;
664		714
665	ctx->cursp = 0;	715	ctx->cursp = 0;
666	PL_op = PL_op->op_next;	716	PL_op = PL_op->op_next;
667	CALLRUNOPS(aTHX);	717	CALLRUNOPS(aTHX);
668		718
669	abort ();	719	abort ();
670	}	720	}
671		721
672	STATIC void	722	STATIC void
673	transfer(pTHX_ struct coro prev, struct coro next, int flags)	723	transfer (pTHX_ struct coro prev, struct coro next, int flags)
674	{	724	{
675	dSTACKLEVEL;	725	dSTACKLEVEL;
676	static struct coro *xnext;
677		726
678	if (prev != next)	727	if (prev != next)
679	{	728	{
680	xnext = next;
681
682	if (next->mainstack)	729	if (next->mainstack)
683	{	730	{
		731	LOCK;
684	SAVE (prev, flags);	732	SAVE (prev, flags);
685	LOAD (next);	733	LOAD (next);
		734	UNLOCK;
686		735
687	/* mark this state as in-use */	736	/* mark this state as in-use */
688	next->mainstack = 0;	737	next->mainstack = 0;
689	next->tmps_ix = -2;	738	next->tmps_ix = -2;
690		739
…		…
709	continue_coro, (void *)next,	758	continue_coro, (void *)next,
710	next->stack->sptr, labs (next->stack->ssize));	759	next->stack->sptr, labs (next->stack->ssize));
711	}	760	}
712		761
713	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	762	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		763	prev->cursp = stacklevel;
714	/* don't add any code here */	764	/* don't add any code here */
715	}	765	}
716		766	else
		767	next->cursp = stacklevel;
717	}	768	}
718	else if (next->tmps_ix == -2)	769	else if (next->tmps_ix == -2)
719	croak ("tried to transfer to running coroutine");	770	croak ("tried to transfer to running coroutine");
720	else	771	else
721	{	772	{
		773	LOCK;
722	SAVE (prev, -1); /* first get rid of the old state */	774	SAVE (prev, -1); /* first get rid of the old state */
		775	UNLOCK;
723		776
724	if (flags & TRANSFER_SAVE_CCTXT)	777	if (flags & TRANSFER_SAVE_CCTXT)
725	{	778	{
726	if (!prev->stack)	779	if (!prev->stack)
727	allocate_stack (prev, 0);	780	allocate_stack (prev, 0);
728		781
729	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	782	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
730	{	783	{
		784	PL_top_env = &next->start_env;
		785
731	setup_coro (next);	786	setup_coro (next);
		787	next->cursp = stacklevel;
732		788
733	prev->stack->refcnt++;	789	prev->stack->refcnt++;
734	prev->stack->usecnt++;	790	prev->stack->usecnt++;
735	next->stack = prev->stack;	791	next->stack = prev->stack;
736	next->gencnt = prev->gencnt;	792	next->gencnt = prev->gencnt;
737	}	793	}
738	else	794	else
739	{	795	{
		796	assert (!next->stack);
740	allocate_stack (next, 1);	797	allocate_stack (next, 1);
741	coro_create (&(next->stack->cctx),	798	coro_create (&(next->stack->cctx),
742	setup_coro, (void *)next,	799	setup_coro, (void *)next,
743	next->stack->sptr, labs (next->stack->ssize));	800	next->stack->sptr, labs (next->stack->ssize));
744	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	801	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		802	prev->cursp = stacklevel;
745	/* don't add any code here */	803	/* don't add any code here */
746	}	804	}
747	}	805	}
748	else	806	else
		807	{
749	setup_coro (next);	808	setup_coro (next);
		809	next->cursp = stacklevel;
		810	}
750	}	811	}
751
752	/*
753	* xnext is now either prev or next, depending on wether
754	* we switched the c stack or not. that's why i use a global
755	* variable, that should become thread-specific at one point.
756	*/
757	xnext->cursp = stacklevel;
758	}	812	}
759		813
		814	LOCK;
760	if (coro_mortal)	815	if (coro_mortal)
761	{	816	{
762	SvREFCNT_dec (coro_mortal);	817	SvREFCNT_dec (coro_mortal);
763	coro_mortal = 0;	818	coro_mortal = 0;
764	}	819	}
		820	UNLOCK;
765	}	821	}
766		822
767	#define SV_CORO(sv,func) \	823	#define SV_CORO(sv,func) \
768	do { \	824	do { \
769	if (SvROK (sv)) \	825	if (SvROK (sv)) \
770	sv = SvRV (sv); \	826	sv = SvRV (sv); \
771	\	827	\
772	if (SvTYPE(sv) == SVt_PVHV) \	828	if (SvTYPE (sv) == SVt_PVHV) \
773	{ \	829	{ \
774	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	830	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
775	\	831	\
776	if (!he) \	832	if (!he) \
777	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	833	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
778	\	834	\
779	(sv) = SvRV (HeVAL(he)); \	835	(sv) = SvRV (HeVAL(he)); \
780	} \	836	} \
781	\	837	\
782	/* must also be changed inside Coro::Cont::yield */ \	838	/* must also be changed inside Coro::Cont::yield */ \
783	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	839	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
784	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	840	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
785	\	841	\
786	} while(0)	842	} while(0)
787		843
788	#define SvSTATE(sv) (struct coro *)SvIV (sv)	844	#define SvSTATE(sv) (struct coro *)SvIV (sv)
…		…
791	api_transfer(pTHX_ SV prev, SV next, int flags)	847	api_transfer(pTHX_ SV prev, SV next, int flags)
792	{	848	{
793	SV_CORO (prev, "Coro::transfer");	849	SV_CORO (prev, "Coro::transfer");
794	SV_CORO (next, "Coro::transfer");	850	SV_CORO (next, "Coro::transfer");
795		851
796	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	852	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
797	}	853	}
798		854
799	/ Coro ******************************************************************/	855	/ Coro ******************************************************************/
800		856
801	#define PRIO_MAX 3	857	#define PRIO_MAX 3
…		…
809	static GV coro_current, coro_idle;	865	static GV coro_current, coro_idle;
810	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	866	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
811	static int coro_nready;	867	static int coro_nready;
812		868
813	static void	869	static void
814	coro_enq (SV *sv)	870	coro_enq (pTHX_ SV *sv)
815	{	871	{
816	if (SvTYPE (sv) == SVt_PVHV)	872	if (SvTYPE (sv) == SVt_PVHV)
817	{	873	{
818	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);	874	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
819	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;	875	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
…		…
830		886
831	croak ("Coro::ready tried to enqueue something that is not a coroutine");	887	croak ("Coro::ready tried to enqueue something that is not a coroutine");
832	}	888	}
833		889
834	static SV *	890	static SV *
835	coro_deq (int min_prio)	891	coro_deq (pTHX_ int min_prio)
836	{	892	{
837	int prio = PRIO_MAX - PRIO_MIN;	893	int prio = PRIO_MAX - PRIO_MIN;
838		894
839	min_prio -= PRIO_MIN;	895	min_prio -= PRIO_MIN;
840	if (min_prio < 0)	896	if (min_prio < 0)
…		…
851	}	907	}
852		908
853	static void	909	static void
854	api_ready (SV *coro)	910	api_ready (SV *coro)
855	{	911	{
		912	dTHX;
		913
856	if (SvROK (coro))	914	if (SvROK (coro))
857	coro = SvRV (coro);	915	coro = SvRV (coro);
858		916
		917	LOCK;
859	coro_enq (SvREFCNT_inc (coro));	918	coro_enq (aTHX_ SvREFCNT_inc (coro));
		919	UNLOCK;
860	}	920	}
861		921
862	static void	922	static void
863	api_schedule (void)	923	api_schedule (void)
864	{	924	{
		925	dTHX;
		926
865	SV prev, next;	927	SV prev, next;
866		928
		929	LOCK;
		930
867	prev = SvRV (GvSV (coro_current));	931	prev = SvRV (GvSV (coro_current));
868	next = coro_deq (PRIO_MIN);	932	next = coro_deq (aTHX_ PRIO_MIN);
869		933
870	if (!next)	934	if (!next)
871	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	935	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
872		936
		937	/* free this only after the transfer */
873	coro_mortal = prev;	938	coro_mortal = prev;
874	SV_CORO (prev, "Coro::schedule");	939	SV_CORO (prev, "Coro::schedule");
875		940
876	SvRV (GvSV (coro_current)) = next;	941	SvRV (GvSV (coro_current)) = next;
877		942
878	SV_CORO (next, "Coro::schedule");	943	SV_CORO (next, "Coro::schedule");
879		944
		945	UNLOCK;
		946
880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	947	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	948	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
882	}	949	}
883		950
884	static void	951	static void
885	api_cede (void)	952	api_cede (void)
886	{	953	{
		954	dTHX;
		955
		956	LOCK;
887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	957	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		958	UNLOCK;
888		959
889	api_schedule ();	960	api_schedule ();
890	}	961	}
891		962
892	MODULE = Coro::State PACKAGE = Coro::State	963	MODULE = Coro::State PACKAGE = Coro::State
893		964
894	PROTOTYPES: ENABLE	965	PROTOTYPES: ENABLE
895		966
896	BOOT:	967	BOOT:
897	{ /* {} necessary for stoopid perl-5.6.x */	968	{ /* {} necessary for stoopid perl-5.6.x */
		969	#ifdef USE_ITHREADS
		970	MUTEX_INIT (&coro_mutex);
		971	#endif
		972
898	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	973	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
899	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	974	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
900	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	975	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
901		976
902	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	977	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
903	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	978	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
904	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	979	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
905	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	980	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
906
907	if (!padlist_cache)
908	padlist_cache = newHV ();
909		981
910	main_mainstack = PL_mainstack;	982	main_mainstack = PL_mainstack;
911		983
912	coroapi.ver = CORO_API_VERSION;	984	coroapi.ver = CORO_API_VERSION;
913	coroapi.transfer = api_transfer;	985	coroapi.transfer = api_transfer;
…		…
921	Coro__State coro;	993	Coro__State coro;
922		994
923	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	995	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
924	croak ("Coro::State::_newprocess expects an arrayref");	996	croak ("Coro::State::_newprocess expects an arrayref");
925		997
926	New (0, coro, 1, struct coro);	998	Newz (0, coro, 1, struct coro);
927		999
928	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1000	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
929	coro->mainstack = 0; /* actual work is done inside transfer */	1001	/coro->mainstack = 0; //actual work is done inside transfer /
930	coro->stack = 0;	1002	/coro->stack = 0;/
		1003
		1004	/* same as JMPENV_BOOTSTRAP */
		1005	/* we might be able to recycle start_env, but safe is safe */
		1006	/Zero(&coro->start_env, 1, JMPENV);/
		1007	coro->start_env.je_ret = -1;
		1008	coro->start_env.je_mustcatch = TRUE;
931		1009
932	RETVAL = coro;	1010	RETVAL = coro;
933	OUTPUT:	1011	OUTPUT:
934	RETVAL	1012	RETVAL
935		1013
…		…
954	if (coro->mainstack && coro->mainstack != main_mainstack)	1032	if (coro->mainstack && coro->mainstack != main_mainstack)
955	{	1033	{
956	struct coro temp;	1034	struct coro temp;
957		1035
958	PUTBACK;	1036	PUTBACK;
959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1037	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
960	LOAD(aTHX_ coro);	1038	LOAD (aTHX_ coro);
961	SPAGAIN;	1039	SPAGAIN;
962		1040
963	destroy_stacks (aTHX);	1041	destroy_stacks (aTHX);
964		1042
965	LOAD((&temp)); /* this will get rid of defsv etc.. */	1043	LOAD ((&temp)); /* this will get rid of defsv etc.. */
966	SPAGAIN;	1044	SPAGAIN;
967		1045
968	coro->mainstack = 0;	1046	coro->mainstack = 0;
969	}	1047	}
970		1048
971	deallocate_stack (coro);	1049	deallocate_stack (coro);
972		1050	SvREFCNT_dec (coro->args);
973	Safefree (coro);	1051	Safefree (coro);
974
975	void
976	flush()
977	CODE:
978	#ifdef MAY_FLUSH
979	flush_padlist_cache ();
980	#endif
981		1052
982	void	1053	void
983	_exit(code)	1054	_exit(code)
984	int code	1055	int code
985	PROTOTYPE: $	1056	PROTOTYPE: $
986	CODE:	1057	CODE:
987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
988	_exit (code);	1058	_exit (code);
989	#else
990	signal (SIGTERM, SIG_DFL);
991	raise (SIGTERM);
992	exit (code);
993	#endif
994		1059
995	MODULE = Coro::State PACKAGE = Coro::Cont	1060	MODULE = Coro::State PACKAGE = Coro::Cont
996		1061
997	# this is slightly dirty (should expose a c-level api)	1062	# this is slightly dirty (should expose a c-level api)
998		1063
999	void	1064	void
1000	yield(...)	1065	yield(...)
1001	PROTOTYPE: @	1066	PROTOTYPE: @
1002	CODE:	1067	CODE:
1003	static SV *returnstk;	1068	SV *yieldstack;
1004	SV *sv;	1069	SV *sv;
1005	AV *defav = GvAV (PL_defgv);	1070	AV *defav = GvAV (PL_defgv);
1006	struct coro prev, next;	1071	struct coro prev, next;
1007		1072
1008	if (!returnstk)	1073	yieldstack = *hv_fetch (
1009	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1074	(HV *)SvRV (GvSV (coro_current)),
		1075	"yieldstack", sizeof ("yieldstack") - 1,
		1076	0
		1077	);
1010		1078
1011	/* set up @_ -- ugly */	1079	/* set up @_ -- ugly */
1012	av_clear (defav);	1080	av_clear (defav);
1013	av_fill (defav, items - 1);	1081	av_fill (defav, items - 1);
1014	while (items--)	1082	while (items--)
1015	av_store (defav, items, SvREFCNT_inc (ST(items)));	1083	av_store (defav, items, SvREFCNT_inc (ST(items)));
1016		1084
1017	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1018	sv = av_pop ((AV *)SvRV (returnstk));	1085	sv = av_pop ((AV *)SvRV (yieldstack));
1019	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1086	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
1020	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1087	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
1021	SvREFCNT_dec (sv);	1088	SvREFCNT_dec (sv);
1022		1089
1023	transfer(aTHX_ prev, next, 0);	1090	transfer (aTHX_ prev, next, 0);
1024		1091
1025	MODULE = Coro::State PACKAGE = Coro	1092	MODULE = Coro::State PACKAGE = Coro
1026		1093
1027	# this is slightly dirty (should expose a c-level api)	1094	# this is slightly dirty (should expose a c-level api)
1028		1095
…		…
1057	sv_setiv(sv, (IV)&coroapi);	1124	sv_setiv(sv, (IV)&coroapi);
1058	SvREADONLY_on(sv);	1125	SvREADONLY_on(sv);
1059	}	1126	}
1060	}	1127	}
1061		1128
		1129	#if !PERL_MICRO
		1130
1062	void	1131	void
1063	ready(self)	1132	ready(self)
1064	SV * self	1133	SV * self
1065	PROTOTYPE: $	1134	PROTOTYPE: $
1066	CODE:	1135	CODE:
1067	api_ready (self);	1136	api_ready (self);
		1137
		1138	#endif
1068		1139
1069	int	1140	int
1070	nready(...)	1141	nready(...)
1071	PROTOTYPE:	1142	PROTOTYPE:
1072	CODE:	1143	CODE:
…		…
1084	cede(...)	1155	cede(...)
1085	PROTOTYPE:	1156	PROTOTYPE:
1086	CODE:	1157	CODE:
1087	api_cede ();	1158	api_cede ();
1088		1159
		1160	# and these are hacks
		1161	SV *
		1162	_aio_get_state ()
		1163	CODE:
		1164	{
		1165	struct {
		1166	int errorno;
		1167	int laststype;
		1168	int laststatval;
		1169	Stat_t statcache;
		1170	} data;
		1171
		1172	data.errorno = errno;
		1173	data.laststype = PL_laststype;
		1174	data.laststatval = PL_laststatval;
		1175	data.statcache = PL_statcache;
		1176
		1177	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1178	}
		1179	OUTPUT:
		1180	RETVAL
		1181
		1182	void
		1183	_aio_set_state (char *data_)
		1184	PROTOTYPE: $
		1185	CODE:
		1186	{
		1187	struct {
		1188	int errorno;
		1189	int laststype;
		1190	int laststatval;
		1191	Stat_t statcache;
		1192	} data = (void )data_;
		1193
		1194	errno = data->errorno;
		1195	PL_laststype = data->laststype;
		1196	PL_laststatval = data->laststatval;
		1197	PL_statcache = data->statcache;
		1198	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.39 by root, Sun Nov 25 20:04:05 2001 UTC vs. Revision 1.71 by root, Wed Jan 25 21:43:58 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.39 by root, Sun Nov 25 20:04:05 2001 UTC vs.
Revision 1.71 by root, Wed Jan 25 21:43:58 2006 UTC