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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.41 by root, Tue Nov 27 02:51:03 2001 UTC vs.
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
		3	#include "libcoro/coro.c"
		4
1	#include "EXTERN.h"	5	#include "EXTERN.h"
2	#include "perl.h"	6	#include "perl.h"
3	#include "XSUB.h"	7	#include "XSUB.h"
4		8
5	#include "libcoro/coro.c"	9	#include "patchlevel.h"
6		10
		11	#if PERL_VERSION < 6
		12	# ifndef PL_ppaddr
		13	# define PL_ppaddr ppaddr
		14	# endif
		15	# ifndef call_sv
		16	# define call_sv perl_call_sv
		17	# endif
		18	# ifndef get_sv
		19	# define get_sv perl_get_sv
		20	# endif
		21	# ifndef get_cv
		22	# define get_cv perl_get_cv
		23	# endif
		24	# ifndef IS_PADGV
		25	# define IS_PADGV(v) 0
		26	# endif
		27	# ifndef IS_PADCONST
		28	# define IS_PADCONST(v) 0
		29	# endif
		30	#endif
		31
7	#include <signal.h>	32	#include <errno.h>
8		33
9	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
10	# include <unistd.h>	35	# include <unistd.h>
11	# include <sys/mman.h>	36	# include <sys/mman.h>
12	# ifndef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
16	# undef HAVE_MMAP	41	# undef HAVE_MMAP
17	# endif	42	# endif
18	# endif	43	# endif
19	#endif	44	#endif
20		45
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22
23	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
25		48
26	/* The next macro should declare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
27	* to the current C stack pointer. Its property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
…		…
32		55
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		57
35	#include "CoroAPI.h"	58	#include "CoroAPI.h"
36		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK (void)0
		66	# define UNLOCK (void)0
		67	#endif
		68
37	static struct CoroAPI coroapi;	69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
38		75
39	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
40	typedef struct {	77	typedef struct {
41	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
…		…
47	void *sptr;	84	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	86	} coro_stack;
50		87
51	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
52	/* the optional C context */	92	/* the optional C context */
53	coro_stack *stack;	93	coro_stack *stack;
54	void *cursp;	94	void *cursp;
55	int gencnt;	95	int gencnt;
56		96
…		…
68	AV *curstack;	108	AV *curstack;
69	AV *mainstack;	109	AV *mainstack;
70	SV **stack_sp;	110	SV **stack_sp;
71	OP *op;	111	OP *op;
72	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
73	SV **stack_base;	115	SV **stack_base;
74	SV **stack_max;	116	SV **stack_max;
75	SV **tmps_stack;	117	SV **tmps_stack;
76	I32 tmps_floor;	118	I32 tmps_floor;
77	I32 tmps_ix;	119	I32 tmps_ix;
…		…
86	I32 savestack_ix;	128	I32 savestack_ix;
87	I32 savestack_max;	129	I32 savestack_max;
88	OP **retstack;	130	OP **retstack;
89	I32 retstack_ix;	131	I32 retstack_ix;
90	I32 retstack_max;	132	I32 retstack_max;
		133	PMOP *curpm;
91	COP *curcop;	134	COP *curcop;
92	JMPENV *top_env;	135	JMPENV *top_env;
93		136
94	/* data associated with this coroutine (initial args) */	137	/* data associated with this coroutine (initial args) */
95	AV *args;	138	AV *args;
96	};	139	};
97		140
98	typedef struct coro *Coro__State;	141	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	142	typedef struct coro *Coro__State_or_hashref;
100		143
101	static AV main_mainstack; / used to differentiate between $main and others */
102	static HV *coro_state_stash;
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106	static SV coro_mortal; / will be freed after next transfer */
107
108	/* mostly copied from op.c:cv_clone2 */	144	/* mostly copied from op.c:cv_clone2 */
109	STATIC AV *	145	STATIC AV *
110	clone_padlist (AV *protopadlist)	146	clone_padlist (pTHX_ AV *protopadlist)
111	{	147	{
112	AV *av;	148	AV *av;
113	I32 ix;	149	I32 ix;
114	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	150	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
115	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	151	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
134	av_store (newpadlist, 1, (SV *) newpad);	170	av_store (newpadlist, 1, (SV *) newpad);
135		171
136	av = newAV (); /* will be @_ */	172	av = newAV (); /* will be @_ */
137	av_extend (av, 0);	173	av_extend (av, 0);
138	av_store (newpad, 0, (SV *) av);	174	av_store (newpad, 0, (SV *) av);
139	AvFLAGS (av) = AVf_REIFY;	175	AvREIFY_on (av);
140		176
141	for (ix = fpad; ix > 0; ix--)	177	for (ix = fpad; ix > 0; ix--)
142	{	178	{
143	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	179	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		180
144	if (namesv && namesv != &PL_sv_undef)	181	if (namesv && namesv != &PL_sv_undef)
145	{	182	{
146	char name = SvPVX (namesv); / XXX */	183	char name = SvPVX (namesv); / XXX */
		184
147	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	185	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
148	{ /* lexical from outside? */	186	{ /* lexical from outside? */
149	npad[ix] = SvREFCNT_inc (ppad[ix]);	187	npad[ix] = SvREFCNT_inc (ppad[ix]);
150	}	188	}
151	else	189	else
…		…
157	sv = (SV *) newAV ();	195	sv = (SV *) newAV ();
158	else if (*name == '%')	196	else if (*name == '%')
159	sv = (SV *) newHV ();	197	sv = (SV *) newHV ();
160	else	198	else
161	sv = NEWSV (0, 0);	199	sv = NEWSV (0, 0);
		200
		201	#ifdef SvPADBUSY
162	if (!SvPADBUSY (sv))	202	if (!SvPADBUSY (sv))
		203	#endif
163	SvPADMY_on (sv);	204	SvPADMY_on (sv);
		205
164	npad[ix] = sv;	206	npad[ix] = sv;
165	}	207	}
166	}	208	}
167	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	209	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
168	{	210	{
…		…
197	#endif	239	#endif
198		240
199	return newpadlist;	241	return newpadlist;
200	}	242	}
201		243
202	#ifdef MAY_FLUSH
203	STATIC void	244	STATIC void
204	free_padlist (AV *padlist)	245	free_padlist (pTHX_ AV *padlist)
205	{	246	{
206	/* may be during global destruction */	247	/* may be during global destruction */
207	if (SvREFCNT(padlist))	248	if (SvREFCNT (padlist))
208	{	249	{
209	I32 i = AvFILLp(padlist);	250	I32 i = AvFILLp (padlist);
210	while (i >= 0)	251	while (i >= 0)
211	{	252	{
212	SV **svp = av_fetch(padlist, i--, FALSE);	253	SV **svp = av_fetch (padlist, i--, FALSE);
213	SV sv = svp ? svp : Nullsv;
214	if (sv)	254	if (svp)
		255	{
		256	SV *sv;
		257	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
215	SvREFCNT_dec(sv);	258	SvREFCNT_dec (sv);
		259
		260	SvREFCNT_dec (*svp);
		261	}
216	}	262	}
217		263
218	SvREFCNT_dec((SV*)padlist);	264	SvREFCNT_dec ((SV*)padlist);
219	}	265	}
220	}	266	}
221	#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};
222		286
223	/* the next two functions merely cache the padlists */	287	/* the next two functions merely cache the padlists */
224	STATIC void	288	STATIC void
225	get_padlist (CV *cv)	289	get_padlist (pTHX_ CV *cv)
226	{	290	{
227	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	291	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		292
229	if (he && AvFILLp ((AV )he) >= 0)	293	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	294	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	295	else
232	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	296	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
233	}	297	}
234		298
235	STATIC void	299	STATIC void
236	put_padlist (CV *cv)	300	put_padlist (pTHX_ CV *cv)
237	{	301	{
238	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	302	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
239		303
240	if (SvTYPE (*he) != SVt_PVAV)	304	if (!mg)
241	{	305	{
242	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;
243	he = (SV )newAV ();	309	mg->mg_obj = (SV *)newAV ();
244	}	310	}
245		311
246	av_push ((AV )he, (SV *)CvPADLIST (cv));	312	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
247	}	313	}
248
249	#ifdef MAY_FLUSH
250	STATIC void
251	flush_padlist_cache ()
252	{
253	HV *hv = padlist_cache;
254	padlist_cache = newHV ();
255
256	if (hv_iterinit (hv))
257	{
258	HE *he;
259	AV *padlist;
260
261	while (!!(he = hv_iternext (hv)))
262	{
263	AV av = (AV )HeVAL(he);
264
265	/* casting is fun. */
266	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
267	free_padlist (padlist);
268	}
269	}
270
271	SvREFCNT_dec (hv);
272	}
273	#endif
274		314
275	#define SB do {	315	#define SB do {
276	#define SE } while (0)	316	#define SE } while (0)
277		317
278	#define LOAD(state) load_state(aTHX_ (state));	318	#define LOAD(state) load_state(aTHX_ (state));
279	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	319	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
280		320
281	#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
282		322
283	static void	323	static void
284	load_state(pTHX_ Coro__State c)	324	load_state(pTHX_ Coro__State c)
285	{	325	{
286	PL_dowarn = c->dowarn;	326	PL_dowarn = c->dowarn;
…		…
290	PL_curstack = c->curstack;	330	PL_curstack = c->curstack;
291	PL_mainstack = c->mainstack;	331	PL_mainstack = c->mainstack;
292	PL_stack_sp = c->stack_sp;	332	PL_stack_sp = c->stack_sp;
293	PL_op = c->op;	333	PL_op = c->op;
294	PL_curpad = c->curpad;	334	PL_curpad = c->curpad;
		335	PL_comppad = c->comppad;
		336	PL_compcv = c->compcv;
295	PL_stack_base = c->stack_base;	337	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;	338	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;	339	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;	340	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;	341	PL_tmps_ix = c->tmps_ix;
…		…
305	PL_scopestack_ix = c->scopestack_ix;	347	PL_scopestack_ix = c->scopestack_ix;
306	PL_scopestack_max = c->scopestack_max;	348	PL_scopestack_max = c->scopestack_max;
307	PL_savestack = c->savestack;	349	PL_savestack = c->savestack;
308	PL_savestack_ix = c->savestack_ix;	350	PL_savestack_ix = c->savestack_ix;
309	PL_savestack_max = c->savestack_max;	351	PL_savestack_max = c->savestack_max;
		352	#if PERL_VERSION < 9
310	PL_retstack = c->retstack;	353	PL_retstack = c->retstack;
311	PL_retstack_ix = c->retstack_ix;	354	PL_retstack_ix = c->retstack_ix;
312	PL_retstack_max = c->retstack_max;	355	PL_retstack_max = c->retstack_max;
		356	#endif
		357	PL_curpm = c->curpm;
313	PL_curcop = c->curcop;	358	PL_curcop = c->curcop;
314	PL_top_env = c->top_env;	359	PL_top_env = c->top_env;
315		360
316	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	361	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
317	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	362	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
326	{	371	{
327	AV padlist = (AV )POPs;	372	AV padlist = (AV )POPs;
328		373
329	if (padlist)	374	if (padlist)
330	{	375	{
331	put_padlist (cv); /* mark this padlist as available */	376	put_padlist (aTHX_ cv); /* mark this padlist as available */
332	CvPADLIST(cv) = padlist;	377	CvPADLIST(cv) = padlist;
333	#ifdef USE_THREADS
334	/CvOWNER(cv) = (struct perl_thread )POPs;*/
335	#endif
336	}	378	}
337		379
338	++CvDEPTH(cv);	380	++CvDEPTH(cv);
339	}	381	}
340		382
…		…
367	if (CxTYPE(cx) == CXt_SUB)	409	if (CxTYPE(cx) == CXt_SUB)
368	{	410	{
369	CV *cv = cx->blk_sub.cv;	411	CV *cv = cx->blk_sub.cv;
370	if (CvDEPTH(cv))	412	if (CvDEPTH(cv))
371	{	413	{
372	#ifdef USE_THREADS
373	/XPUSHs ((SV )CvOWNER(cv));*/
374	/CvOWNER(cv) = 0;/
375	/error must unlock this cv etc.. etc.../
376	#endif
377	EXTEND (SP, CvDEPTH(cv)*2);	414	EXTEND (SP, CvDEPTH(cv)*2);
378		415
379	while (--CvDEPTH(cv))	416	while (--CvDEPTH(cv))
380	{	417	{
381	/* this tells the restore code to increment CvDEPTH */	418	/* this tells the restore code to increment CvDEPTH */
…		…
384	}	421	}
385		422
386	PUSHs ((SV *)CvPADLIST(cv));	423	PUSHs ((SV *)CvPADLIST(cv));
387	PUSHs ((SV *)cv);	424	PUSHs ((SV *)cv);
388		425
389	get_padlist (cv); /* this is a monster */	426	get_padlist (aTHX_ cv); /* this is a monster */
390	}	427	}
391	}	428	}
		429	#ifdef CXt_FORMAT
392	else if (CxTYPE(cx) == CXt_FORMAT)	430	else if (CxTYPE(cx) == CXt_FORMAT)
393	{	431	{
394	/* 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? */
395	/* my bold guess is as a simple, plain sub... */	433	/* my bold guess is as a simple, plain sub... */
396	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");
397	}	435	}
		436	#endif
398	}	437	}
399		438
400	if (top_si->si_type == PERLSI_MAIN)	439	if (top_si->si_type == PERLSI_MAIN)
401	break;	440	break;
402		441
…		…
419	c->curstack = PL_curstack;	458	c->curstack = PL_curstack;
420	c->mainstack = PL_mainstack;	459	c->mainstack = PL_mainstack;
421	c->stack_sp = PL_stack_sp;	460	c->stack_sp = PL_stack_sp;
422	c->op = PL_op;	461	c->op = PL_op;
423	c->curpad = PL_curpad;	462	c->curpad = PL_curpad;
		463	c->comppad = PL_comppad;
		464	c->compcv = PL_compcv;
424	c->stack_base = PL_stack_base;	465	c->stack_base = PL_stack_base;
425	c->stack_max = PL_stack_max;	466	c->stack_max = PL_stack_max;
426	c->tmps_stack = PL_tmps_stack;	467	c->tmps_stack = PL_tmps_stack;
427	c->tmps_floor = PL_tmps_floor;	468	c->tmps_floor = PL_tmps_floor;
428	c->tmps_ix = PL_tmps_ix;	469	c->tmps_ix = PL_tmps_ix;
…		…
434	c->scopestack_ix = PL_scopestack_ix;	475	c->scopestack_ix = PL_scopestack_ix;
435	c->scopestack_max = PL_scopestack_max;	476	c->scopestack_max = PL_scopestack_max;
436	c->savestack = PL_savestack;	477	c->savestack = PL_savestack;
437	c->savestack_ix = PL_savestack_ix;	478	c->savestack_ix = PL_savestack_ix;
438	c->savestack_max = PL_savestack_max;	479	c->savestack_max = PL_savestack_max;
		480	#if PERL_VERSION < 9
439	c->retstack = PL_retstack;	481	c->retstack = PL_retstack;
440	c->retstack_ix = PL_retstack_ix;	482	c->retstack_ix = PL_retstack_ix;
441	c->retstack_max = PL_retstack_max;	483	c->retstack_max = PL_retstack_max;
		484	#endif
		485	c->curpm = PL_curpm;
442	c->curcop = PL_curcop;	486	c->curcop = PL_curcop;
443	c->top_env = PL_top_env;	487	c->top_env = PL_top_env;
444	}	488	}
445		489
446	/*	490	/*
447	* allocate various perl stacks. This is an exact copy	491	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	492	* of perl.c:init_stacks, except that it uses less memory
449	* on the assumption that coroutines do not usually need	493	* on the (sometimes correct) assumption that coroutines do
450	* a lot of stackspace.	494	* not usually need a lot of stackspace.
451	*/	495	*/
452	STATIC void	496	STATIC void
453	coro_init_stacks (pTHX)	497	coro_init_stacks (pTHX)
454	{	498	{
		499	LOCK;
		500
455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	501	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
456	PL_curstackinfo->si_type = PERLSI_MAIN;	502	PL_curstackinfo->si_type = PERLSI_MAIN;
457	PL_curstack = PL_curstackinfo->si_stack;	503	PL_curstack = PL_curstackinfo->si_stack;
458	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
459		505
…		…
468		514
469	New(54,PL_markstack,16,I32);	515	New(54,PL_markstack,16,I32);
470	PL_markstack_ptr = PL_markstack;	516	PL_markstack_ptr = PL_markstack;
471	PL_markstack_max = PL_markstack + 16;	517	PL_markstack_max = PL_markstack + 16;
472		518
		519	#ifdef SET_MARK_OFFSET
473	SET_MARK_OFFSET;	520	SET_MARK_OFFSET;
		521	#endif
474		522
475	New(54,PL_scopestack,16,I32);	523	New(54,PL_scopestack,16,I32);
476	PL_scopestack_ix = 0;	524	PL_scopestack_ix = 0;
477	PL_scopestack_max = 16;	525	PL_scopestack_max = 16;
478		526
479	New(54,PL_savestack,96,ANY);	527	New(54,PL_savestack,96,ANY);
480	PL_savestack_ix = 0;	528	PL_savestack_ix = 0;
481	PL_savestack_max = 96;	529	PL_savestack_max = 96;
482		530
		531	#if PERL_VERSION < 9
483	New(54,PL_retstack,8,OP*);	532	New(54,PL_retstack,8,OP*);
484	PL_retstack_ix = 0;	533	PL_retstack_ix = 0;
485	PL_retstack_max = 8;	534	PL_retstack_max = 8;
		535	#endif
		536
		537	UNLOCK;
486	}	538	}
487		539
488	/*	540	/*
489	* destroy the stacks, the callchain etc...	541	* destroy the stacks, the callchain etc...
490	* still there is a memleak of 128 bytes...
491	*/	542	*/
492	STATIC void	543	STATIC void
493	destroy_stacks(pTHX)	544	destroy_stacks(pTHX)
494	{	545	{
495	if (!IN_DESTRUCT)	546	if (!IN_DESTRUCT)
496	{	547	{
497	/* is this ugly, I ask? */	548	/* is this ugly, I ask? */
498	while (PL_scopestack_ix)	549	LEAVE_SCOPE (0);
499	LEAVE;
500		550
501	/* sure it is, but more important: is it correct?? :/ */	551	/* sure it is, but more important: is it correct?? :/ */
502	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
503	FREETMPS;	552	FREETMPS;
		553
		554	/POPSTACK_TO (PL_mainstack);//D//use/
504	}	555	}
505		556
506	while (PL_curstackinfo->si_next)	557	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	558	PL_curstackinfo = PL_curstackinfo->si_next;
508		559
509	while (PL_curstackinfo)	560	while (PL_curstackinfo)
510	{	561	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	562	PERL_SI *p = PL_curstackinfo->si_prev;
512		563
513	{	564	{ /D//remove/
514	dSP;	565	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	566	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	567	PUTBACK; /* possibly superfluous */
517	}	568	}
518		569
519	if (!IN_DESTRUCT)	570	if (!IN_DESTRUCT)
520	{	571	{
521	dounwind(-1);	572	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	573	SvREFCNT_dec (PL_curstackinfo->si_stack);
523	}	574	}
524		575
525	Safefree(PL_curstackinfo->si_cxstack);	576	Safefree (PL_curstackinfo->si_cxstack);
526	Safefree(PL_curstackinfo);	577	Safefree (PL_curstackinfo);
527	PL_curstackinfo = p;	578	PL_curstackinfo = p;
528	}	579	}
529		580
530	Safefree(PL_tmps_stack);	581	Safefree (PL_tmps_stack);
531	Safefree(PL_markstack);	582	Safefree (PL_markstack);
532	Safefree(PL_scopestack);	583	Safefree (PL_scopestack);
533	Safefree(PL_savestack);	584	Safefree (PL_savestack);
		585	#if PERL_VERSION < 9
534	Safefree(PL_retstack);	586	Safefree (PL_retstack);
		587	#endif
535	}	588	}
536		589
537	static void	590	static void
538	allocate_stack (Coro__State ctx, int alloc)	591	allocate_stack (Coro__State ctx, int alloc)
539	{	592	{
…		…
542	New (0, stack, 1, coro_stack);	595	New (0, stack, 1, coro_stack);
543		596
544	stack->refcnt = 1;	597	stack->refcnt = 1;
545	stack->usecnt = 1;	598	stack->usecnt = 1;
546	stack->gencnt = ctx->gencnt = 0;	599	stack->gencnt = ctx->gencnt = 0;
		600
547	if (alloc)	601	if (alloc)
548	{	602	{
549	#if HAVE_MMAP	603	#if HAVE_MMAP
550	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 */
551	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	605	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
552	if (stack->sptr == (void *)-1)	606	if (stack->sptr == (void *)-1)
553	#endif	607	#endif
554	{	608	{
555	/FIXME//D//* reasonable stack size! */
556	stack->ssize = -4096 * sizeof (long);	609	stack->ssize = - (STACKSIZE * (long)sizeof (long));
557	New (0, stack->sptr, 4096, long);	610	New (0, stack->sptr, STACKSIZE, long);
558	}	611	}
559	}	612	}
560	else	613	else
561	stack->sptr = 0;	614	stack->sptr = 0;
562		615
…		…
576	{	629	{
577	#ifdef HAVE_MMAP	630	#ifdef HAVE_MMAP
578	if (stack->ssize > 0 && stack->sptr)	631	if (stack->ssize > 0 && stack->sptr)
579	munmap (stack->sptr, stack->ssize);	632	munmap (stack->sptr, stack->ssize);
580	else	633	else
581	#else	634	#endif
582	Safefree (stack->sptr);	635	Safefree (stack->sptr);
583	#endif	636
584	Safefree (stack);	637	Safefree (stack);
585	}	638	}
586	else if (ctx->gencnt == stack->gencnt)	639	else if (ctx->gencnt == stack->gencnt)
587	--stack->usecnt;	640	--stack->usecnt;
588	}	641	}
…		…
592	setup_coro (void *arg)	645	setup_coro (void *arg)
593	{	646	{
594	/*	647	/*
595	* emulate part of the perl startup here.	648	* emulate part of the perl startup here.
596	*/	649	*/
		650	dTHX;
597	dSP;	651	dSP;
598	Coro__State ctx = (Coro__State)arg;	652	Coro__State ctx = (Coro__State)arg;
599	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	653	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
600		654
601	coro_init_stacks (aTHX);	655	coro_init_stacks (aTHX);
602	/PL_curcop = 0;/	656	/PL_curcop = 0;/
603	/PL_in_eval = PL_in_eval;/ /* inherit */	657	/PL_in_eval = PL_in_eval;/ /* inherit */
604	SvREFCNT_dec (GvAV (PL_defgv));	658	SvREFCNT_dec (GvAV (PL_defgv));
605	GvAV (PL_defgv) = ctx->args;	659	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
606		660
607	SPAGAIN;	661	SPAGAIN;
608		662
609	if (ctx->stack)	663	if (ctx->stack)
610	{	664	{
…		…
637	* that doesn't matter, though, since it is only	691	* that doesn't matter, though, since it is only
638	* pp_nextstate and we never return...	692	* pp_nextstate and we never return...
639	* ah yes, and I don't care anyways ;)	693	* ah yes, and I don't care anyways ;)
640	*/	694	*/
641	PUTBACK;	695	PUTBACK;
642	PL_op = pp_entersub();	696	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
643	SPAGAIN;	697	SPAGAIN;
644		698
645	ENTER; /* necessary e.g. for dounwind */	699	ENTER; /* necessary e.g. for dounwind */
646	}	700	}
647	}	701	}
…		…
650	continue_coro (void *arg)	704	continue_coro (void *arg)
651	{	705	{
652	/*	706	/*
653	* this is a _very_ stripped down perl interpreter ;)	707	* this is a _very_ stripped down perl interpreter ;)
654	*/	708	*/
		709	dTHX;
655	Coro__State ctx = (Coro__State)arg;	710	Coro__State ctx = (Coro__State)arg;
656	JMPENV coro_start_env;
657		711
658	/* same as JMPENV_BOOTSTRAP */
659	Zero(&coro_start_env, 1, JMPENV);
660	coro_start_env.je_ret = -1;
661	coro_start_env.je_mustcatch = TRUE;
662	PL_top_env = &coro_start_env;	712	PL_top_env = &ctx->start_env;
663		713
664	ctx->cursp = 0;	714	ctx->cursp = 0;
665	PL_op = PL_op->op_next;	715	PL_op = PL_op->op_next;
666	CALLRUNOPS(aTHX);	716	CALLRUNOPS(aTHX);
667		717
668	abort ();	718	abort ();
669	}	719	}
670		720
671	STATIC void	721	STATIC void
672	transfer(pTHX_ struct coro prev, struct coro next, int flags)	722	transfer (pTHX_ struct coro prev, struct coro next, int flags)
673	{	723	{
674	dSTACKLEVEL;	724	dSTACKLEVEL;
675	static struct coro *xnext;
676		725
677	if (prev != next)	726	if (prev != next)
678	{	727	{
679	xnext = next;
680
681	if (next->mainstack)	728	if (next->mainstack)
682	{	729	{
		730	LOCK;
683	SAVE (prev, flags);	731	SAVE (prev, flags);
684	LOAD (next);	732	LOAD (next);
		733	UNLOCK;
685		734
686	/* mark this state as in-use */	735	/* mark this state as in-use */
687	next->mainstack = 0;	736	next->mainstack = 0;
688	next->tmps_ix = -2;	737	next->tmps_ix = -2;
689		738
…		…
708	continue_coro, (void *)next,	757	continue_coro, (void *)next,
709	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
710	}	759	}
711		760
712	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	761	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		762	prev->cursp = stacklevel;
713	/* don't add any code here */	763	/* don't add any code here */
714	}	764	}
715		765	else
		766	next->cursp = stacklevel;
716	}	767	}
717	else if (next->tmps_ix == -2)	768	else if (next->tmps_ix == -2)
718	croak ("tried to transfer to running coroutine");	769	croak ("tried to transfer to running coroutine");
719	else	770	else
720	{	771	{
		772	LOCK;
721	SAVE (prev, -1); /* first get rid of the old state */	773	SAVE (prev, -1); /* first get rid of the old state */
		774	UNLOCK;
722		775
723	if (flags & TRANSFER_SAVE_CCTXT)	776	if (flags & TRANSFER_SAVE_CCTXT)
724	{	777	{
725	if (!prev->stack)	778	if (!prev->stack)
726	allocate_stack (prev, 0);	779	allocate_stack (prev, 0);
727		780
728	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	781	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
729	{	782	{
		783	PL_top_env = &next->start_env;
		784
730	setup_coro (next);	785	setup_coro (next);
		786	next->cursp = stacklevel;
731		787
732	prev->stack->refcnt++;	788	prev->stack->refcnt++;
733	prev->stack->usecnt++;	789	prev->stack->usecnt++;
734	next->stack = prev->stack;	790	next->stack = prev->stack;
735	next->gencnt = prev->gencnt;	791	next->gencnt = prev->gencnt;
736	}	792	}
737	else	793	else
738	{	794	{
		795	assert (!next->stack);
739	allocate_stack (next, 1);	796	allocate_stack (next, 1);
740	coro_create (&(next->stack->cctx),	797	coro_create (&(next->stack->cctx),
741	setup_coro, (void *)next,	798	setup_coro, (void *)next,
742	next->stack->sptr, labs (next->stack->ssize));	799	next->stack->sptr, labs (next->stack->ssize));
743	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	800	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		801	prev->cursp = stacklevel;
744	/* don't add any code here */	802	/* don't add any code here */
745	}	803	}
746	}	804	}
747	else	805	else
		806	{
748	setup_coro (next);	807	setup_coro (next);
		808	next->cursp = stacklevel;
		809	}
749	}	810	}
750
751	/*
752	* xnext is now either prev or next, depending on wether
753	* we switched the c stack or not. that's why I use a global
754	* variable, that should become thread-specific at one point.
755	*/
756	xnext->cursp = stacklevel;
757	}	811	}
758		812
		813	LOCK;
759	if (coro_mortal)	814	if (coro_mortal)
760	{	815	{
761	SvREFCNT_dec (coro_mortal);	816	SvREFCNT_dec (coro_mortal);
762	coro_mortal = 0;	817	coro_mortal = 0;
763	}	818	}
		819	UNLOCK;
764	}	820	}
765		821
766	#define SV_CORO(sv,func) \	822	#define SV_CORO(sv,func) \
767	do { \	823	do { \
768	if (SvROK (sv)) \	824	if (SvROK (sv)) \
769	sv = SvRV (sv); \	825	sv = SvRV (sv); \
770	\	826	\
771	if (SvTYPE(sv) == SVt_PVHV) \	827	if (SvTYPE (sv) == SVt_PVHV) \
772	{ \	828	{ \
773	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	829	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
774	\	830	\
775	if (!he) \	831	if (!he) \
776	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	832	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
777	\	833	\
778	(sv) = SvRV (HeVAL(he)); \	834	(sv) = SvRV (HeVAL(he)); \
779	} \	835	} \
780	\	836	\
781	/* must also be changed inside Coro::Cont::yield */ \	837	/* must also be changed inside Coro::Cont::yield */ \
782	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	838	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
783	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	839	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
784	\	840	\
785	} while(0)	841	} while(0)
786		842
787	#define SvSTATE(sv) (struct coro *)SvIV (sv)	843	#define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv))
788		844
789	static void	845	static void
790	api_transfer(pTHX_ SV prev, SV next, int flags)	846	api_transfer(pTHX_ SV prev, SV next, int flags)
791	{	847	{
792	SV_CORO (prev, "Coro::transfer");	848	SV_CORO (prev, "Coro::transfer");
793	SV_CORO (next, "Coro::transfer");	849	SV_CORO (next, "Coro::transfer");
794		850
795	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	851	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
796	}	852	}
797		853
798	/ Coro ******************************************************************/	854	/ Coro ******************************************************************/
799		855
800	#define PRIO_MAX 3	856	#define PRIO_MAX 3
…		…
808	static GV coro_current, coro_idle;	864	static GV coro_current, coro_idle;
809	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	865	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
810	static int coro_nready;	866	static int coro_nready;
811		867
812	static void	868	static void
813	coro_enq (SV *sv)	869	coro_enq (pTHX_ SV *sv)
814	{	870	{
		871	SV **xprio;
		872	int prio;
		873
815	if (SvTYPE (sv) == SVt_PVHV)	874	if (SvTYPE (sv) != SVt_PVHV)
816	{
817	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
818	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
819
820	prio = prio > PRIO_MAX ? PRIO_MAX
821	: prio < PRIO_MIN ? PRIO_MIN
822	: prio;
823
824	av_push (coro_ready [prio - PRIO_MIN], sv);
825	coro_nready++;
826
827	return;
828	}
829
830	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++;
831	}	886	}
832		887
833	static SV *	888	static SV *
834	coro_deq (int min_prio)	889	coro_deq (pTHX_ int min_prio)
835	{	890	{
836	int prio = PRIO_MAX - PRIO_MIN;	891	int prio = PRIO_MAX - PRIO_MIN;
837		892
838	min_prio -= PRIO_MIN;	893	min_prio -= PRIO_MIN;
839	if (min_prio < 0)	894	if (min_prio < 0)
…		…
850	}	905	}
851		906
852	static void	907	static void
853	api_ready (SV *coro)	908	api_ready (SV *coro)
854	{	909	{
		910	dTHX;
		911
855	if (SvROK (coro))	912	if (SvROK (coro))
856	coro = SvRV (coro);	913	coro = SvRV (coro);
857		914
		915	LOCK;
858	coro_enq (SvREFCNT_inc (coro));	916	coro_enq (aTHX_ SvREFCNT_inc (coro));
		917	UNLOCK;
859	}	918	}
860		919
861	static void	920	static void
862	api_schedule (void)	921	api_schedule (void)
863	{	922	{
		923	dTHX;
		924
864	SV prev, next;	925	SV prev, next;
865		926
		927	LOCK;
		928
866	prev = SvRV (GvSV (coro_current));	929	prev = SvRV (GvSV (coro_current));
867	next = coro_deq (PRIO_MIN);	930	next = coro_deq (aTHX_ PRIO_MIN);
868		931
869	if (!next)	932	if (!next)
870	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	933	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
871		934
872	/* free this only after the transfer */	935	/* free this only after the transfer */
…		…
875		938
876	SvRV (GvSV (coro_current)) = next;	939	SvRV (GvSV (coro_current)) = next;
877		940
878	SV_CORO (next, "Coro::schedule");	941	SV_CORO (next, "Coro::schedule");
879		942
		943	UNLOCK;
		944
880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	945	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	946	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
882	}	947	}
883		948
884	static void	949	static void
885	api_cede (void)	950	api_cede (void)
886	{	951	{
		952	dTHX;
		953
		954	LOCK;
887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	955	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		956	UNLOCK;
888		957
889	api_schedule ();	958	api_schedule ();
890	}	959	}
891		960
892	MODULE = Coro::State PACKAGE = Coro::State	961	MODULE = Coro::State PACKAGE = Coro::State
893		962
894	PROTOTYPES: ENABLE	963	PROTOTYPES: ENABLE
895		964
896	BOOT:	965	BOOT:
897	{ /* {} 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
898	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	971	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
899	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	972	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
900	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	973	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
901		974
902	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	975	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
903	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	976	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
904	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	977	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
905	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	978	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
906
907	if (!padlist_cache)
908	padlist_cache = newHV ();
909		979
910	main_mainstack = PL_mainstack;	980	main_mainstack = PL_mainstack;
911		981
912	coroapi.ver = CORO_API_VERSION;	982	coroapi.ver = CORO_API_VERSION;
913	coroapi.transfer = api_transfer;	983	coroapi.transfer = api_transfer;
…		…
921	Coro__State coro;	991	Coro__State coro;
922		992
923	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	993	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
924	croak ("Coro::State::_newprocess expects an arrayref");	994	croak ("Coro::State::_newprocess expects an arrayref");
925		995
926	New (0, coro, 1, struct coro);	996	Newz (0, coro, 1, struct coro);
927		997
928	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	998	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
929	coro->mainstack = 0; /* actual work is done inside transfer */	999	/coro->mainstack = 0; //actual work is done inside transfer /
930	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;
931		1007
932	RETVAL = coro;	1008	RETVAL = coro;
933	OUTPUT:	1009	OUTPUT:
934	RETVAL	1010	RETVAL
935		1011
…		…
954	if (coro->mainstack && coro->mainstack != main_mainstack)	1030	if (coro->mainstack && coro->mainstack != main_mainstack)
955	{	1031	{
956	struct coro temp;	1032	struct coro temp;
957		1033
958	PUTBACK;	1034	PUTBACK;
959	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1035	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
960	LOAD(aTHX_ coro);	1036	LOAD (aTHX_ coro);
961	SPAGAIN;	1037	SPAGAIN;
962		1038
963	destroy_stacks (aTHX);	1039	destroy_stacks (aTHX);
964		1040
965	LOAD((&temp)); /* this will get rid of defsv etc.. */	1041	LOAD ((&temp)); /* this will get rid of defsv etc.. */
966	SPAGAIN;	1042	SPAGAIN;
967		1043
968	coro->mainstack = 0;	1044	coro->mainstack = 0;
969	}	1045	}
970		1046
971	deallocate_stack (coro);	1047	deallocate_stack (coro);
972		1048	SvREFCNT_dec (coro->args);
973	Safefree (coro);	1049	Safefree (coro);
974
975	void
976	flush()
977	CODE:
978	#ifdef MAY_FLUSH
979	flush_padlist_cache ();
980	#endif
981		1050
982	void	1051	void
983	_exit(code)	1052	_exit(code)
984	int code	1053	int code
985	PROTOTYPE: $	1054	PROTOTYPE: $
986	CODE:	1055	CODE:
987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
988	_exit (code);	1056	_exit (code);
989	#else
990	signal (SIGTERM, SIG_DFL);
991	raise (SIGTERM);
992	exit (code);
993	#endif
994		1057
995	MODULE = Coro::State PACKAGE = Coro::Cont	1058	MODULE = Coro::State PACKAGE = Coro::Cont
996		1059
997	# this is slightly dirty (should expose a c-level api)	1060	# this is slightly dirty (should expose a c-level api)
998		1061
999	void	1062	void
1000	yield(...)	1063	yield(...)
1001	PROTOTYPE: @	1064	PROTOTYPE: @
1002	CODE:	1065	CODE:
1003	static SV *returnstk;	1066	SV *yieldstack;
1004	SV *sv;	1067	SV *sv;
1005	AV *defav = GvAV (PL_defgv);	1068	AV *defav = GvAV (PL_defgv);
1006	struct coro prev, next;	1069	struct coro prev, next;
1007		1070
1008	if (!returnstk)	1071	yieldstack = *hv_fetch (
1009	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1072	(HV *)SvRV (GvSV (coro_current)),
		1073	"yieldstack", sizeof ("yieldstack") - 1,
		1074	0
		1075	);
1010		1076
1011	/* set up @_ -- ugly */	1077	/* set up @_ -- ugly */
1012	av_clear (defav);	1078	av_clear (defav);
1013	av_fill (defav, items - 1);	1079	av_fill (defav, items - 1);
1014	while (items--)	1080	while (items--)
1015	av_store (defav, items, SvREFCNT_inc (ST(items)));	1081	av_store (defav, items, SvREFCNT_inc (ST(items)));
1016		1082
1017	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1018	sv = av_pop ((AV *)SvRV (returnstk));	1083	sv = av_pop ((AV *)SvRV (yieldstack));
1019	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))));
1020	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))));
1021	SvREFCNT_dec (sv);	1086	SvREFCNT_dec (sv);
1022		1087
1023	transfer(aTHX_ prev, next, 0);	1088	transfer (aTHX_ prev, next, 0);
1024		1089
1025	MODULE = Coro::State PACKAGE = Coro	1090	MODULE = Coro::State PACKAGE = Coro
1026		1091
1027	# this is slightly dirty (should expose a c-level api)	1092	# this is slightly dirty (should expose a c-level api)
1028		1093
…		…
1057	sv_setiv(sv, (IV)&coroapi);	1122	sv_setiv(sv, (IV)&coroapi);
1058	SvREADONLY_on(sv);	1123	SvREADONLY_on(sv);
1059	}	1124	}
1060	}	1125	}
1061		1126
		1127	#if !PERL_MICRO
		1128
1062	void	1129	void
1063	ready(self)	1130	ready(self)
1064	SV * self	1131	SV * self
1065	PROTOTYPE: $	1132	PROTOTYPE: $
1066	CODE:	1133	CODE:
1067	api_ready (self);	1134	api_ready (self);
		1135
		1136	#endif
1068		1137
1069	int	1138	int
1070	nready(...)	1139	nready(...)
1071	PROTOTYPE:	1140	PROTOTYPE:
1072	CODE:	1141	CODE:
…		…
1084	cede(...)	1153	cede(...)
1085	PROTOTYPE:	1154	PROTOTYPE:
1086	CODE:	1155	CODE:
1087	api_cede ();	1156	api_cede ();
1088		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	}

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.41 by root, Tue Nov 27 02:51:03 2001 UTC vs. Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.41 by root, Tue Nov 27 02:51:03 2001 UTC vs.
Revision 1.76 by root, Thu Oct 26 08:45:56 2006 UTC