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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.45 by root, Tue May 27 01:15:31 2003 UTC vs.
Revision 1.85 by root, Fri Nov 24 00:32:04 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>
		33
		34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
		35	# undef STACKGUARD
		36	#endif
		37
		38	#ifndef STACKGUARD
		39	# define STACKGUARD 0
		40	#endif
8		41
9	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
10	# include <unistd.h>	43	# include <unistd.h>
11	# include <sys/mman.h>	44	# include <sys/mman.h>
12	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
14	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
15	# else	48	# else
16	# undef HAVE_MMAP	49	# undef HAVE_MMAP
17	# endif	50	# endif
18	# endif	51	# endif
		52	# include <limits.h>
		53	# ifndef PAGESIZE
		54	# define PAGESIZE pagesize
		55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
		56	static long pagesize;
		57	# else
		58	# define BOOT_PAGESIZE
19	#endif	59	# endif
20		60	#endif
21	#define MAY_FLUSH /* increases codesize and is rarely used */
22		61
23	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
24	#define UCORO_STATE "_coro_state"	63	#define UCORO_STATE "_coro_state"
25		64
26	/* The next macro should declare a variable stacklevel that contains and approximation	65	/* The next macro should declare a variable stacklevel that contains and approximation
…		…
32		71
33	#define labs(l) ((l) >= 0 ? (l) : -(l))	72	#define labs(l) ((l) >= 0 ? (l) : -(l))
34		73
35	#include "CoroAPI.h"	74	#include "CoroAPI.h"
36		75
		76	#ifdef USE_ITHREADS
		77	static perl_mutex coro_mutex;
		78	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		79	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		80	#else
		81	# define LOCK (void)0
		82	# define UNLOCK (void)0
		83	#endif
		84
37	static struct CoroAPI coroapi;	85	static struct CoroAPI coroapi;
		86	static AV main_mainstack; / used to differentiate between $main and others */
		87	static HV *coro_state_stash;
		88	static SV *ucoro_state_sv;
		89	static U32 ucoro_state_hash;
		90	static SV coro_mortal; / will be freed after next transfer */
38		91
39	/* this is actually not only the c stack but also c registers etc... */	92	/* this is actually not only the c stack but also c registers etc... */
40	typedef struct {	93	typedef struct {
41	int refcnt; /* pointer reference counter */	94	int refcnt; /* pointer reference counter */
42	int usecnt; /* shared by how many coroutines */	95	int usecnt; /* shared by how many coroutines */
…		…
47	void *sptr;	100	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	102	} coro_stack;
50		103
51	struct coro {	104	struct coro {
52	/* the top-level JMPENV for each coroutine, needed to catch dies. */
53	JMPENV start_env;
54
55	/* the optional C context */	105	/* the optional C context */
56	coro_stack *stack;	106	coro_stack *stack;
57	void *cursp;	107	void *cursp;
58	int gencnt;	108	int gencnt;
59		109
…		…
72	AV *mainstack;	122	AV *mainstack;
73	SV **stack_sp;	123	SV **stack_sp;
74	OP *op;	124	OP *op;
75	SV **curpad;	125	SV **curpad;
76	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
77	SV **stack_base;	128	SV **stack_base;
78	SV **stack_max;	129	SV **stack_max;
79	SV **tmps_stack;	130	SV **tmps_stack;
80	I32 tmps_floor;	131	I32 tmps_floor;
81	I32 tmps_ix;	132	I32 tmps_ix;
…		…
90	I32 savestack_ix;	141	I32 savestack_ix;
91	I32 savestack_max;	142	I32 savestack_max;
92	OP **retstack;	143	OP **retstack;
93	I32 retstack_ix;	144	I32 retstack_ix;
94	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
95	COP *curcop;	147	COP *curcop;
96	JMPENV *top_env;	148	JMPENV *top_env;
97		149
98	/* data associated with this coroutine (initial args) */	150	/* data associated with this coroutine (initial args) */
99	AV *args;	151	AV *args;
100	};	152	};
101		153
102	typedef struct coro *Coro__State;	154	typedef struct coro *Coro__State;
103	typedef struct coro *Coro__State_or_hashref;	155	typedef struct coro *Coro__State_or_hashref;
104		156
105	static AV main_mainstack; / used to differentiate between $main and others */	157	static AV *
106	static HV *coro_state_stash;	158	coro_clone_padlist (pTHX_ CV *cv)
107	static SV *ucoro_state_sv;
108	static U32 ucoro_state_hash;
109	static HV *padlist_cache;
110	static SV coro_mortal; / will be freed after next transfer */
111
112	/* mostly copied from op.c:cv_clone2 */
113	STATIC AV *
114	clone_padlist (AV *protopadlist)
115	{	159	{
116	AV *av;	160	AV *padlist = CvPADLIST (cv);
117	I32 ix;
118	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
119	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
120	SV **pname = AvARRAY (protopad_name);
121	SV **ppad = AvARRAY (protopad);
122	I32 fname = AvFILLp (protopad_name);
123	I32 fpad = AvFILLp (protopad);
124	AV newpadlist, newpad_name, *newpad;	161	AV newpadlist, newpad;
125	SV **npad;
126
127	newpad_name = newAV ();
128	for (ix = fname; ix >= 0; ix--)
129	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
130
131	newpad = newAV ();
132	av_fill (newpad, AvFILLp (protopad));
133	npad = AvARRAY (newpad);
134		162
135	newpadlist = newAV ();	163	newpadlist = newAV ();
136	AvREAL_off (newpadlist);	164	AvREAL_off (newpadlist);
137	av_store (newpadlist, 0, (SV *) newpad_name);	165	#if PERL_VERSION < 9
		166	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		167	#else
		168	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		169	#endif
		170	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		171	--AvFILLp (padlist);
		172
		173	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
138	av_store (newpadlist, 1, (SV *) newpad);	174	av_store (newpadlist, 1, (SV *)newpad);
139		175
140	av = newAV (); /* will be @_ */	176	return newpadlist;
141	av_extend (av, 0);	177	}
142	av_store (newpad, 0, (SV *) av);
143	AvFLAGS (av) = AVf_REIFY;
144		178
145	for (ix = fpad; ix > 0; ix--)	179	static void
		180	free_padlist (pTHX_ AV *padlist)
		181	{
		182	/* may be during global destruction */
		183	if (SvREFCNT (padlist))
146	{	184	{
147	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	185	I32 i = AvFILLp (padlist);
148	if (namesv && namesv != &PL_sv_undef)	186	while (i >= 0)
149	{	187	{
150	char name = SvPVX (namesv); / XXX */	188	SV **svp = av_fetch (padlist, i--, FALSE);
151	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	189	if (svp)
152	{ /* lexical from outside? */
153	npad[ix] = SvREFCNT_inc (ppad[ix]);
154	}	190	{
155	else
156	{ /* our own lexical */
157	SV *sv;	191	SV *sv;
158	if (*name == '&')	192	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
159	sv = SvREFCNT_inc (ppad[ix]);	193	SvREFCNT_dec (sv);
160	else if (*name == '@')	194
161	sv = (SV *) newAV ();	195	SvREFCNT_dec (*svp);
162	else if (*name == '%')
163	sv = (SV *) newHV ();
164	else
165	sv = NEWSV (0, 0);
166	if (!SvPADBUSY (sv))
167	SvPADMY_on (sv);
168	npad[ix] = sv;
169	}	196	}
170	}	197	}
171	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	198
172	{	199	SvREFCNT_dec ((SV*)padlist);
173	npad[ix] = SvREFCNT_inc (ppad[ix]);
174	}
175	else
176	{
177	SV *sv = NEWSV (0, 0);
178	SvPADTMP_on (sv);
179	npad[ix] = sv;
180	}
181	}	200	}
		201	}
182		202
183	#if 0 /* return -ENOTUNDERSTOOD */	203	static int
184	/* Now that vars are all in place, clone nested closures. */	204	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		205	{
		206	AV *padlist;
		207	AV av = (AV )mg->mg_obj;
185		208
186	for (ix = fpad; ix > 0; ix--) {	209	/* casting is fun. */
187	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	210	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
188	if (namesv	211	free_padlist (aTHX_ padlist);
189	&& namesv != &PL_sv_undef	212
190	&& !(SvFLAGS(namesv) & SVf_FAKE)	213	SvREFCNT_dec (av);
191	&& *SvPVX(namesv) == '&'	214
192	&& CvCLONE(ppad[ix]))	215	return 0;
193	{	216	}
194	CV kid = cv_clone((CV)ppad[ix]);	217
195	SvREFCNT_dec(ppad[ix]);	218	#define PERL_MAGIC_coro PERL_MAGIC_ext
196	CvCLONE_on(kid);	219
197	SvPADMY_on(kid);	220	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
198	npad[ix] = (SV*)kid;	221
199	}	222	/* the next two functions merely cache the padlists */
		223	static void
		224	get_padlist (pTHX_ CV *cv)
		225	{
		226	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		227
		228	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		229	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		230	else
		231	{
		232	#if 0
		233	/* this should work - but it doesn't :( */
		234	CV *cp = Perl_cv_clone (aTHX_ cv);
		235	CvPADLIST (cv) = CvPADLIST (cp);
		236	CvPADLIST (cp) = 0;
		237	SvREFCNT_dec (cp);
		238	#else
		239	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		240	#endif
		241	}
		242	}
		243
		244	static void
		245	put_padlist (pTHX_ CV *cv)
		246	{
		247	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		248
		249	if (!mg)
		250	{
		251	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		252	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		253	mg->mg_virtual = &vtbl_coro;
		254	mg->mg_obj = (SV *)newAV ();
200	}	255	}
201	#endif
202		256
203	return newpadlist;
204	}
205
206	#ifdef MAY_FLUSH
207	STATIC void
208	free_padlist (AV *padlist)
209	{
210	/* may be during global destruction */
211	if (SvREFCNT(padlist))
212	{
213	I32 i = AvFILLp(padlist);
214	while (i >= 0)
215	{
216	SV **svp = av_fetch(padlist, i--, FALSE);
217	SV sv = svp ? svp : Nullsv;
218	if (sv)
219	SvREFCNT_dec(sv);
220	}
221
222	SvREFCNT_dec((SV*)padlist);
223	}
224	}
225	#endif
226
227	/* the next two functions merely cache the padlists */
228	STATIC void
229	get_padlist (CV *cv)
230	{
231	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
232
233	if (he && AvFILLp ((AV )he) >= 0)
234	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
235	else
236	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
237	}
238
239	STATIC void
240	put_padlist (CV *cv)
241	{
242	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
243
244	if (SvTYPE (*he) != SVt_PVAV)
245	{
246	SvREFCNT_dec (*he);
247	he = (SV )newAV ();
248	}
249
250	av_push ((AV )he, (SV *)CvPADLIST (cv));	257	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
251	}	258	}
252
253	#ifdef MAY_FLUSH
254	STATIC void
255	flush_padlist_cache ()
256	{
257	HV *hv = padlist_cache;
258	padlist_cache = newHV ();
259
260	if (hv_iterinit (hv))
261	{
262	HE *he;
263	AV *padlist;
264
265	while (!!(he = hv_iternext (hv)))
266	{
267	AV av = (AV )HeVAL(he);
268
269	/* casting is fun. */
270	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
271	free_padlist (padlist);
272	}
273	}
274
275	SvREFCNT_dec (hv);
276	}
277	#endif
278		259
279	#define SB do {	260	#define SB do {
280	#define SE } while (0)	261	#define SE } while (0)
281		262
282	#define LOAD(state) load_state(aTHX_ (state));	263	#define LOAD(state) load_state(aTHX_ (state));
283	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	264	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
284		265
285	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	266	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
286		267
287	static void	268	static void
288	load_state(pTHX_ Coro__State c)	269	load_state(pTHX_ Coro__State c)
289	{	270	{
290	PL_dowarn = c->dowarn;	271	PL_dowarn = c->dowarn;
…		…
295	PL_mainstack = c->mainstack;	276	PL_mainstack = c->mainstack;
296	PL_stack_sp = c->stack_sp;	277	PL_stack_sp = c->stack_sp;
297	PL_op = c->op;	278	PL_op = c->op;
298	PL_curpad = c->curpad;	279	PL_curpad = c->curpad;
299	PL_comppad = c->comppad;	280	PL_comppad = c->comppad;
		281	PL_compcv = c->compcv;
300	PL_stack_base = c->stack_base;	282	PL_stack_base = c->stack_base;
301	PL_stack_max = c->stack_max;	283	PL_stack_max = c->stack_max;
302	PL_tmps_stack = c->tmps_stack;	284	PL_tmps_stack = c->tmps_stack;
303	PL_tmps_floor = c->tmps_floor;	285	PL_tmps_floor = c->tmps_floor;
304	PL_tmps_ix = c->tmps_ix;	286	PL_tmps_ix = c->tmps_ix;
…		…
310	PL_scopestack_ix = c->scopestack_ix;	292	PL_scopestack_ix = c->scopestack_ix;
311	PL_scopestack_max = c->scopestack_max;	293	PL_scopestack_max = c->scopestack_max;
312	PL_savestack = c->savestack;	294	PL_savestack = c->savestack;
313	PL_savestack_ix = c->savestack_ix;	295	PL_savestack_ix = c->savestack_ix;
314	PL_savestack_max = c->savestack_max;	296	PL_savestack_max = c->savestack_max;
		297	#if PERL_VERSION < 9
315	PL_retstack = c->retstack;	298	PL_retstack = c->retstack;
316	PL_retstack_ix = c->retstack_ix;	299	PL_retstack_ix = c->retstack_ix;
317	PL_retstack_max = c->retstack_max;	300	PL_retstack_max = c->retstack_max;
		301	#endif
		302	PL_curpm = c->curpm;
318	PL_curcop = c->curcop;	303	PL_curcop = c->curcop;
319	PL_top_env = c->top_env;	304	PL_top_env = c->top_env;
320		305
321	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	306	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
322	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	307	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
331	{	316	{
332	AV padlist = (AV )POPs;	317	AV padlist = (AV )POPs;
333		318
334	if (padlist)	319	if (padlist)
335	{	320	{
336	put_padlist (cv); /* mark this padlist as available */	321	put_padlist (aTHX_ cv); /* mark this padlist as available */
337	CvPADLIST(cv) = padlist;	322	CvPADLIST(cv) = padlist;
338	#ifdef USE_THREADS
339	/CvOWNER(cv) = (struct perl_thread )POPs;*/
340	#endif
341	}	323	}
342		324
343	++CvDEPTH(cv);	325	++CvDEPTH(cv);
344	}	326	}
345		327
…		…
372	if (CxTYPE(cx) == CXt_SUB)	354	if (CxTYPE(cx) == CXt_SUB)
373	{	355	{
374	CV *cv = cx->blk_sub.cv;	356	CV *cv = cx->blk_sub.cv;
375	if (CvDEPTH(cv))	357	if (CvDEPTH(cv))
376	{	358	{
377	#ifdef USE_THREADS
378	/XPUSHs ((SV )CvOWNER(cv));*/
379	/CvOWNER(cv) = 0;/
380	/error must unlock this cv etc.. etc.../
381	#endif
382	EXTEND (SP, CvDEPTH(cv)*2);	359	EXTEND (SP, CvDEPTH(cv)*2);
383		360
384	while (--CvDEPTH(cv))	361	while (--CvDEPTH(cv))
385	{	362	{
386	/* this tells the restore code to increment CvDEPTH */	363	/* this tells the restore code to increment CvDEPTH */
…		…
389	}	366	}
390		367
391	PUSHs ((SV *)CvPADLIST(cv));	368	PUSHs ((SV *)CvPADLIST(cv));
392	PUSHs ((SV *)cv);	369	PUSHs ((SV *)cv);
393		370
394	get_padlist (cv); /* this is a monster */	371	get_padlist (aTHX_ cv);
395	}	372	}
396	}	373	}
		374	#ifdef CXt_FORMAT
397	else if (CxTYPE(cx) == CXt_FORMAT)	375	else if (CxTYPE(cx) == CXt_FORMAT)
398	{	376	{
399	/* I never used formats, so how should I know how these are implemented? */	377	/* I never used formats, so how should I know how these are implemented? */
400	/* my bold guess is as a simple, plain sub... */	378	/* my bold guess is as a simple, plain sub... */
401	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	379	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
402	}	380	}
		381	#endif
403	}	382	}
404		383
405	if (top_si->si_type == PERLSI_MAIN)	384	if (top_si->si_type == PERLSI_MAIN)
406	break;	385	break;
407		386
…		…
425	c->mainstack = PL_mainstack;	404	c->mainstack = PL_mainstack;
426	c->stack_sp = PL_stack_sp;	405	c->stack_sp = PL_stack_sp;
427	c->op = PL_op;	406	c->op = PL_op;
428	c->curpad = PL_curpad;	407	c->curpad = PL_curpad;
429	c->comppad = PL_comppad;	408	c->comppad = PL_comppad;
		409	c->compcv = PL_compcv;
430	c->stack_base = PL_stack_base;	410	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;	411	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;	412	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;	413	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;	414	c->tmps_ix = PL_tmps_ix;
…		…
440	c->scopestack_ix = PL_scopestack_ix;	420	c->scopestack_ix = PL_scopestack_ix;
441	c->scopestack_max = PL_scopestack_max;	421	c->scopestack_max = PL_scopestack_max;
442	c->savestack = PL_savestack;	422	c->savestack = PL_savestack;
443	c->savestack_ix = PL_savestack_ix;	423	c->savestack_ix = PL_savestack_ix;
444	c->savestack_max = PL_savestack_max;	424	c->savestack_max = PL_savestack_max;
		425	#if PERL_VERSION < 9
445	c->retstack = PL_retstack;	426	c->retstack = PL_retstack;
446	c->retstack_ix = PL_retstack_ix;	427	c->retstack_ix = PL_retstack_ix;
447	c->retstack_max = PL_retstack_max;	428	c->retstack_max = PL_retstack_max;
		429	#endif
		430	c->curpm = PL_curpm;
448	c->curcop = PL_curcop;	431	c->curcop = PL_curcop;
449	c->top_env = PL_top_env;	432	c->top_env = PL_top_env;
450	}	433	}
451		434
452	/*	435	/*
453	* allocate various perl stacks. This is an exact copy	436	* allocate various perl stacks. This is an exact copy
454	* of perl.c:init_stacks, except that it uses less memory	437	* of perl.c:init_stacks, except that it uses less memory
455	* on the assumption that coroutines do not usually need	438	* on the (sometimes correct) assumption that coroutines do
456	* a lot of stackspace.	439	* not usually need a lot of stackspace.
457	*/	440	*/
458	STATIC void	441	static void
459	coro_init_stacks (pTHX)	442	coro_init_stacks (pTHX)
460	{	443	{
		444	LOCK;
		445
461	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	446	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
462	PL_curstackinfo->si_type = PERLSI_MAIN;	447	PL_curstackinfo->si_type = PERLSI_MAIN;
463	PL_curstack = PL_curstackinfo->si_stack;	448	PL_curstack = PL_curstackinfo->si_stack;
464	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	449	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
465		450
…		…
474		459
475	New(54,PL_markstack,16,I32);	460	New(54,PL_markstack,16,I32);
476	PL_markstack_ptr = PL_markstack;	461	PL_markstack_ptr = PL_markstack;
477	PL_markstack_max = PL_markstack + 16;	462	PL_markstack_max = PL_markstack + 16;
478		463
		464	#ifdef SET_MARK_OFFSET
479	SET_MARK_OFFSET;	465	SET_MARK_OFFSET;
		466	#endif
480		467
481	New(54,PL_scopestack,16,I32);	468	New(54,PL_scopestack,16,I32);
482	PL_scopestack_ix = 0;	469	PL_scopestack_ix = 0;
483	PL_scopestack_max = 16;	470	PL_scopestack_max = 16;
484		471
485	New(54,PL_savestack,96,ANY);	472	New(54,PL_savestack,96,ANY);
486	PL_savestack_ix = 0;	473	PL_savestack_ix = 0;
487	PL_savestack_max = 96;	474	PL_savestack_max = 96;
488		475
		476	#if PERL_VERSION < 9
489	New(54,PL_retstack,8,OP*);	477	New(54,PL_retstack,8,OP*);
490	PL_retstack_ix = 0;	478	PL_retstack_ix = 0;
491	PL_retstack_max = 8;	479	PL_retstack_max = 8;
		480	#endif
		481
		482	UNLOCK;
492	}	483	}
493		484
494	/*	485	/*
495	* destroy the stacks, the callchain etc...	486	* destroy the stacks, the callchain etc...
496	* still there is a memleak of 128 bytes...
497	*/	487	*/
498	STATIC void	488	static void
499	destroy_stacks(pTHX)	489	destroy_stacks(pTHX)
500	{	490	{
501	if (!IN_DESTRUCT)	491	if (!IN_DESTRUCT)
502	{	492	{
503	/* is this ugly, I ask? */	493	/* is this ugly, I ask? */
504	while (PL_scopestack_ix)	494	LEAVE_SCOPE (0);
505	LEAVE;
506		495
507	/* sure it is, but more important: is it correct?? :/ */	496	/* sure it is, but more important: is it correct?? :/ */
508	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
509	FREETMPS;	497	FREETMPS;
		498
		499	/POPSTACK_TO (PL_mainstack);//D//use/
510	}	500	}
511		501
512	while (PL_curstackinfo->si_next)	502	while (PL_curstackinfo->si_next)
513	PL_curstackinfo = PL_curstackinfo->si_next;	503	PL_curstackinfo = PL_curstackinfo->si_next;
514		504
515	while (PL_curstackinfo)	505	while (PL_curstackinfo)
516	{	506	{
517	PERL_SI *p = PL_curstackinfo->si_prev;	507	PERL_SI *p = PL_curstackinfo->si_prev;
518		508
519	{	509	{ /D//remove/
520	dSP;	510	dSP;
521	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	511	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
522	PUTBACK; /* possibly superfluous */	512	PUTBACK; /* possibly superfluous */
523	}	513	}
524		514
525	if (!IN_DESTRUCT)	515	if (!IN_DESTRUCT)
526	{	516	{
527	dounwind(-1);	517	dounwind (-1);/D//remove/
528	SvREFCNT_dec(PL_curstackinfo->si_stack);	518	SvREFCNT_dec (PL_curstackinfo->si_stack);
529	}	519	}
530		520
531	Safefree(PL_curstackinfo->si_cxstack);	521	Safefree (PL_curstackinfo->si_cxstack);
532	Safefree(PL_curstackinfo);	522	Safefree (PL_curstackinfo);
533	PL_curstackinfo = p;	523	PL_curstackinfo = p;
534	}	524	}
535		525
536	Safefree(PL_tmps_stack);	526	Safefree (PL_tmps_stack);
537	Safefree(PL_markstack);	527	Safefree (PL_markstack);
538	Safefree(PL_scopestack);	528	Safefree (PL_scopestack);
539	Safefree(PL_savestack);	529	Safefree (PL_savestack);
		530	#if PERL_VERSION < 9
540	Safefree(PL_retstack);	531	Safefree (PL_retstack);
		532	#endif
541	}	533	}
542		534
543	static void	535	static void
544	allocate_stack (Coro__State ctx, int alloc)	536	allocate_stack (Coro__State ctx, int alloc)
545	{	537	{
…		…
548	New (0, stack, 1, coro_stack);	540	New (0, stack, 1, coro_stack);
549		541
550	stack->refcnt = 1;	542	stack->refcnt = 1;
551	stack->usecnt = 1;	543	stack->usecnt = 1;
552	stack->gencnt = ctx->gencnt = 0;	544	stack->gencnt = ctx->gencnt = 0;
		545
553	if (alloc)	546	if (alloc)
554	{	547	{
555	#if HAVE_MMAP	548	#if HAVE_MMAP
556	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	549	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
557	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
558	if (stack->sptr == (void *)-1)	551	if (stack->sptr != (void *)-1)
559	#endif
560	{	552	{
561	/FIXME//D//* reasonable stack size! */	553	# if STACKGUARD
		554	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		555	# endif
		556	}
		557	else
		558	#endif
		559	{
562	stack->ssize = -4096 * sizeof (long);	560	stack->ssize = - (STACKSIZE * (long)sizeof (long));
563	New (0, stack->sptr, 4096, long);	561	New (0, stack->sptr, STACKSIZE, long);
564	}	562	}
565	}	563	}
566	else	564	else
567	stack->sptr = 0;	565	stack->sptr = 0;
568		566
…		…
582	{	580	{
583	#ifdef HAVE_MMAP	581	#ifdef HAVE_MMAP
584	if (stack->ssize > 0 && stack->sptr)	582	if (stack->ssize > 0 && stack->sptr)
585	munmap (stack->sptr, stack->ssize);	583	munmap (stack->sptr, stack->ssize);
586	else	584	else
587	#else	585	#endif
588	Safefree (stack->sptr);	586	Safefree (stack->sptr);
589	#endif	587
590	Safefree (stack);	588	Safefree (stack);
591	}	589	}
592	else if (ctx->gencnt == stack->gencnt)	590	else if (ctx->gencnt == stack->gencnt)
593	--stack->usecnt;	591	--stack->usecnt;
594	}	592	}
…		…
598	setup_coro (void *arg)	596	setup_coro (void *arg)
599	{	597	{
600	/*	598	/*
601	* emulate part of the perl startup here.	599	* emulate part of the perl startup here.
602	*/	600	*/
		601	dTHX;
603	dSP;	602	dSP;
604	Coro__State ctx = (Coro__State)arg;	603	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	604	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
606		605
607	coro_init_stacks (aTHX);	606	coro_init_stacks (aTHX);
608	/PL_curcop = 0;/	607	/PL_curcop = 0;/
609	/PL_in_eval = PL_in_eval;/ /* inherit */	608	/PL_in_eval = PL_in_eval;/ /* inherit */
610	SvREFCNT_dec (GvAV (PL_defgv));	609	SvREFCNT_dec (GvAV (PL_defgv));
611	GvAV (PL_defgv) = ctx->args;	610	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
612		611
613	SPAGAIN;	612	SPAGAIN;
614		613
615	if (ctx->stack)	614	if (ctx->stack)
616	{	615	{
…		…
627	}	626	}
628	else	627	else
629	{	628	{
630	UNOP myop;	629	UNOP myop;
631		630
632	PL_op = (OP *)&myop;
633
634	Zero(&myop, 1, UNOP);	631	Zero(&myop, 1, UNOP);
635	myop.op_next = Nullop;	632	myop.op_next = Nullop;
636	myop.op_flags = OPf_WANT_VOID;	633	myop.op_flags = OPf_WANT_VOID;
		634
		635	PL_op = (OP *)&myop;
637		636
638	PUSHMARK(SP);	637	PUSHMARK(SP);
639	XPUSHs (sub_init);	638	XPUSHs (sub_init);
640	/*	639	/*
641	* the next line is slightly wrong, as PL_op->op_next	640	* the next line is slightly wrong, as PL_op->op_next
…		…
656	continue_coro (void *arg)	655	continue_coro (void *arg)
657	{	656	{
658	/*	657	/*
659	* this is a _very_ stripped down perl interpreter ;)	658	* this is a _very_ stripped down perl interpreter ;)
660	*/	659	*/
		660	dTHX;
661	Coro__State ctx = (Coro__State)arg;	661	Coro__State ctx = (Coro__State)arg;
662	JMPENV coro_start_env;
663		662
664	PL_top_env = &ctx->start_env;	663	PL_top_env = &PL_start_env;
665		664
666	ctx->cursp = 0;	665	ctx->cursp = 0;
667	PL_op = PL_op->op_next;	666	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);	667	CALLRUNOPS(aTHX);
669		668
670	abort ();	669	abort ();
671	}	670	}
672		671
673	STATIC void	672	/* never call directly, always through the coro_state_transfer global variable */
		673	static void
674	transfer(pTHX_ struct coro prev, struct coro next, int flags)	674	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
675	{	675	{
676	dSTACKLEVEL;	676	dSTACKLEVEL;
677	static struct coro *xnext;
678		677
679	if (prev != next)	678	if (prev != next)
680	{	679	{
681	xnext = next;	680	/* has this coro been created yet? */
682
683	if (next->mainstack)	681	if (next->mainstack)
684	{	682	{
		683	LOCK;
685	SAVE (prev, flags);	684	SAVE (prev, flags);
686	LOAD (next);	685	LOAD (next);
		686	UNLOCK;
687		687
688	/* mark this state as in-use */	688	/* mark this state as in-use */
689	next->mainstack = 0;	689	next->mainstack = 0;
690	next->tmps_ix = -2;	690	next->tmps_ix = -2;
691		691
…		…
710	continue_coro, (void *)next,	710	continue_coro, (void *)next,
711	next->stack->sptr, labs (next->stack->ssize));	711	next->stack->sptr, labs (next->stack->ssize));
712	}	712	}
713		713
714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		715	prev->cursp = stacklevel;
715	/* don't add any code here */	716	/* don't add any code here */
716	}	717	}
717		718	else
		719	next->cursp = stacklevel;
718	}	720	}
719	else if (next->tmps_ix == -2)	721	else if (next->tmps_ix == -2)
720	croak ("tried to transfer to running coroutine");	722	croak ("tried to transfer to running coroutine");
721	else	723	else
722	{	724	{
		725	LOCK;
723	SAVE (prev, -1); /* first get rid of the old state */	726	SAVE (prev, -1); /* first get rid of the old state */
		727	UNLOCK;
724		728
		729	/* create the coroutine for the first time */
725	if (flags & TRANSFER_SAVE_CCTXT)	730	if (flags & TRANSFER_SAVE_CCTXT)
726	{	731	{
727	if (!prev->stack)	732	if (!prev->stack)
728	allocate_stack (prev, 0);	733	allocate_stack (prev, 0);
729		734
		735	/* the new coroutine starts with start_env again */
		736	PL_top_env = &PL_start_env;
		737
730	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	738	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
731	{	739	{
732	PL_top_env = &next->start_env;
733
734	setup_coro (next);	740	setup_coro (next);
		741	next->cursp = stacklevel;
735		742
736	prev->stack->refcnt++;	743	prev->stack->refcnt++;
737	prev->stack->usecnt++;	744	prev->stack->usecnt++;
738	next->stack = prev->stack;	745	next->stack = prev->stack;
739	next->gencnt = prev->gencnt;	746	next->gencnt = prev->gencnt;
740	}	747	}
741	else	748	else
742	{	749	{
		750	assert (!next->stack);
743	allocate_stack (next, 1);	751	allocate_stack (next, 1);
744	coro_create (&(next->stack->cctx),	752	coro_create (&(next->stack->cctx),
745	setup_coro, (void *)next,	753	setup_coro, (void *)next,
746	next->stack->sptr, labs (next->stack->ssize));	754	next->stack->sptr, labs (next->stack->ssize));
747	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	755	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		756	prev->cursp = stacklevel;
748	/* don't add any code here */	757	/* don't add any code here */
749	}	758	}
750	}	759	}
751	else	760	else
		761	{
752	setup_coro (next);	762	setup_coro (next);
		763	next->cursp = stacklevel;
		764	}
753	}	765	}
754
755	/*
756	* xnext is now either prev or next, depending on wether
757	* we switched the c stack or not. that's why I use a global
758	* variable, that should become thread-specific at one point.
759	*/
760	xnext->cursp = stacklevel;
761	}	766	}
762		767
		768	LOCK;
763	if (coro_mortal)	769	if (coro_mortal)
764	{	770	{
765	SvREFCNT_dec (coro_mortal);	771	SvREFCNT_dec (coro_mortal);
766	coro_mortal = 0;	772	coro_mortal = 0;
767	}	773	}
		774	UNLOCK;
768	}	775	}
		776
		777	/* use this function pointer to call the above function */
		778	/* this is done to increase chances of the compiler not inlining the call */
		779	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
769		780
770	#define SV_CORO(sv,func) \	781	#define SV_CORO(sv,func) \
771	do { \	782	do { \
772	if (SvROK (sv)) \	783	if (SvROK (sv)) \
773	sv = SvRV (sv); \	784	sv = SvRV (sv); \
774	\	785	\
775	if (SvTYPE(sv) == SVt_PVHV) \	786	if (SvTYPE (sv) == SVt_PVHV) \
776	{ \	787	{ \
777	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	788	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
778	\	789	\
779	if (!he) \	790	if (!he) \
780	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	791	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
781	\	792	\
782	(sv) = SvRV (HeVAL(he)); \	793	(sv) = SvRV (HeVAL(he)); \
783	} \	794	} \
784	\	795	\
785	/* must also be changed inside Coro::Cont::yield */ \	796	/* must also be changed inside Coro::Cont::yield */ \
786	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	797	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
787	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	798	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
788	\	799	\
789	} while(0)	800	} while(0)
790		801
791	#define SvSTATE(sv) (struct coro *)SvIV (sv)	802	#define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv))
792		803
793	static void	804	static void
794	api_transfer(pTHX_ SV prev, SV next, int flags)	805	api_transfer (pTHX_ SV prev, SV next, int flags)
795	{	806	{
796	SV_CORO (prev, "Coro::transfer");	807	SV_CORO (prev, "Coro::transfer");
797	SV_CORO (next, "Coro::transfer");	808	SV_CORO (next, "Coro::transfer");
798		809
799	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	810	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
800	}	811	}
801		812
802	/ Coro ******************************************************************/	813	/ Coro ******************************************************************/
803		814
804	#define PRIO_MAX 3	815	#define PRIO_MAX 3
…		…
808	#define PRIO_IDLE -3	819	#define PRIO_IDLE -3
809	#define PRIO_MIN -4	820	#define PRIO_MIN -4
810		821
811	/* for Coro.pm */	822	/* for Coro.pm */
812	static GV coro_current, coro_idle;	823	static GV coro_current, coro_idle;
813	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	824	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
814	static int coro_nready;	825	static int coro_nready;
815		826
816	static void	827	static void
817	coro_enq (SV *sv)	828	coro_enq (pTHX_ SV *sv)
818	{	829	{
		830	SV **xprio;
		831	int prio;
		832
819	if (SvTYPE (sv) == SVt_PVHV)	833	if (SvTYPE (sv) != SVt_PVHV)
820	{
821	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
822	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
823
824	prio = prio > PRIO_MAX ? PRIO_MAX
825	: prio < PRIO_MIN ? PRIO_MIN
826	: prio;
827
828	av_push (coro_ready [prio - PRIO_MIN], sv);
829	coro_nready++;
830
831	return;
832	}
833
834	croak ("Coro::ready tried to enqueue something that is not a coroutine");	834	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		835
		836	xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
		837	prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		838
		839	prio = prio > PRIO_MAX ? PRIO_MAX
		840	: prio < PRIO_MIN ? PRIO_MIN
		841	: prio;
		842
		843	av_push (coro_ready [prio - PRIO_MIN], sv);
		844	coro_nready++;
835	}	845	}
836		846
837	static SV *	847	static SV *
838	coro_deq (int min_prio)	848	coro_deq (pTHX_ int min_prio)
839	{	849	{
840	int prio = PRIO_MAX - PRIO_MIN;	850	int prio = PRIO_MAX - PRIO_MIN;
841		851
842	min_prio -= PRIO_MIN;	852	min_prio -= PRIO_MIN;
843	if (min_prio < 0)	853	if (min_prio < 0)
844	min_prio = 0;	854	min_prio = 0;
845		855
846	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	856	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
847	if (av_len (coro_ready[prio]) >= 0)	857	if (AvFILLp (coro_ready [prio]) >= 0)
848	{	858	{
849	coro_nready--;	859	coro_nready--;
850	return av_shift (coro_ready[prio]);	860	return av_shift (coro_ready [prio]);
851	}	861	}
852		862
853	return 0;	863	return 0;
854	}	864	}
855		865
856	static void	866	static void
857	api_ready (SV *coro)	867	api_ready (SV *coro)
858	{	868	{
		869	dTHX;
		870
859	if (SvROK (coro))	871	if (SvROK (coro))
860	coro = SvRV (coro);	872	coro = SvRV (coro);
861		873
		874	LOCK;
862	coro_enq (SvREFCNT_inc (coro));	875	coro_enq (aTHX_ SvREFCNT_inc (coro));
		876	UNLOCK;
863	}	877	}
864		878
865	static void	879	static void
866	api_schedule (void)	880	api_schedule (void)
867	{	881	{
		882	dTHX;
		883
868	SV prev, next;	884	SV prev, next;
869		885
		886	LOCK;
		887
870	prev = SvRV (GvSV (coro_current));	888	prev = SvRV (GvSV (coro_current));
871	next = coro_deq (PRIO_MIN);	889	next = coro_deq (aTHX_ PRIO_MIN);
872		890
873	if (!next)	891	if (!next)
874	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	892	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
875		893
876	/* free this only after the transfer */	894	/* free this only after the transfer */
…		…
879		897
880	SvRV (GvSV (coro_current)) = next;	898	SvRV (GvSV (coro_current)) = next;
881		899
882	SV_CORO (next, "Coro::schedule");	900	SV_CORO (next, "Coro::schedule");
883		901
		902	UNLOCK;
		903
884	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	904	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
885	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	905	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
886	}	906	}
887		907
888	static void	908	static void
889	api_cede (void)	909	api_cede (void)
890	{	910	{
		911	dTHX;
		912
		913	LOCK;
891	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	914	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		915	UNLOCK;
892		916
893	api_schedule ();	917	api_schedule ();
894	}	918	}
895		919
896	MODULE = Coro::State PACKAGE = Coro::State	920	MODULE = Coro::State PACKAGE = Coro::State
897		921
898	PROTOTYPES: ENABLE	922	PROTOTYPES: ENABLE
899		923
900	BOOT:	924	BOOT:
901	{ /* {} necessary for stoopid perl-5.6.x */	925	{ /* {} necessary for stoopid perl-5.6.x */
		926	#ifdef USE_ITHREADS
		927	MUTEX_INIT (&coro_mutex);
		928	#endif
		929	BOOT_PAGESIZE;
		930
902	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	931	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
903	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	932	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
904	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	933	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
905		934
906	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	935	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
907	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	936	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
908	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	937	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
909	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	938	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
910
911	if (!padlist_cache)
912	padlist_cache = newHV ();
913		939
914	main_mainstack = PL_mainstack;	940	main_mainstack = PL_mainstack;
915		941
916	coroapi.ver = CORO_API_VERSION;	942	coroapi.ver = CORO_API_VERSION;
917	coroapi.transfer = api_transfer;	943	coroapi.transfer = api_transfer;
…		…
925	Coro__State coro;	951	Coro__State coro;
926		952
927	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	953	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
928	croak ("Coro::State::_newprocess expects an arrayref");	954	croak ("Coro::State::_newprocess expects an arrayref");
929		955
930	New (0, coro, 1, struct coro);	956	Newz (0, coro, 1, struct coro);
931		957
932	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	958	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
933	coro->mainstack = 0; /* actual work is done inside transfer */	959	/coro->mainstack = 0; //actual work is done inside transfer /
934	coro->stack = 0;	960	/coro->stack = 0;/
935
936	/* same as JMPENV_BOOTSTRAP */
937	/* we might be able to recycle start_env, but safe is safe */
938	Zero(&coro->start_env, 1, JMPENV);
939	coro->start_env.je_ret = -1;
940	coro->start_env.je_mustcatch = TRUE;
941		961
942	RETVAL = coro;	962	RETVAL = coro;
943	OUTPUT:	963	OUTPUT:
944	RETVAL	964	RETVAL
945		965
…		…
951	PROTOTYPE: @	971	PROTOTYPE: @
952	CODE:	972	CODE:
953	PUTBACK;	973	PUTBACK;
954	SV_CORO (next, "Coro::transfer");	974	SV_CORO (next, "Coro::transfer");
955	SV_CORO (prev, "Coro::transfer");	975	SV_CORO (prev, "Coro::transfer");
956	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	976	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
957	SPAGAIN;	977	SPAGAIN;
958		978
959	void	979	void
960	DESTROY(coro)	980	DESTROY(coro)
961	Coro::State coro	981	Coro::State coro
…		…
964	if (coro->mainstack && coro->mainstack != main_mainstack)	984	if (coro->mainstack && coro->mainstack != main_mainstack)
965	{	985	{
966	struct coro temp;	986	struct coro temp;
967		987
968	PUTBACK;	988	PUTBACK;
969	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	989	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
970	LOAD(aTHX_ coro);	990	LOAD (aTHX_ coro);
971	SPAGAIN;	991	SPAGAIN;
972		992
973	destroy_stacks (aTHX);	993	destroy_stacks (aTHX);
974		994
975	LOAD((&temp)); /* this will get rid of defsv etc.. */	995	LOAD ((&temp)); /* this will get rid of defsv etc.. */
976	SPAGAIN;	996	SPAGAIN;
977		997
978	coro->mainstack = 0;	998	coro->mainstack = 0;
979	}	999	}
980		1000
981	deallocate_stack (coro);	1001	deallocate_stack (coro);
982		1002	SvREFCNT_dec (coro->args);
983	Safefree (coro);	1003	Safefree (coro);
984
985	void
986	flush()
987	CODE:
988	#ifdef MAY_FLUSH
989	flush_padlist_cache ();
990	#endif
991		1004
992	void	1005	void
993	_exit(code)	1006	_exit(code)
994	int code	1007	int code
995	PROTOTYPE: $	1008	PROTOTYPE: $
996	CODE:	1009	CODE:
997	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
998	_exit (code);	1010	_exit (code);
999	#else
1000	signal (SIGTERM, SIG_DFL);
1001	raise (SIGTERM);
1002	exit (code);
1003	#endif
1004		1011
1005	MODULE = Coro::State PACKAGE = Coro::Cont	1012	MODULE = Coro::State PACKAGE = Coro::Cont
1006
1007	# this is slightly dirty (should expose a c-level api)
1008		1013
1009	void	1014	void
1010	yield(...)	1015	yield(...)
1011	PROTOTYPE: @	1016	PROTOTYPE: @
1012	CODE:	1017	CODE:
1013	static SV *returnstk;	1018	SV *yieldstack;
1014	SV *sv;	1019	SV *sv;
1015	AV *defav = GvAV (PL_defgv);	1020	AV *defav = GvAV (PL_defgv);
1016	struct coro prev, next;	1021	struct coro prev, next;
1017		1022
1018	if (!returnstk)	1023	yieldstack = *hv_fetch (
1019	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1024	(HV *)SvRV (GvSV (coro_current)),
		1025	"yieldstack", sizeof ("yieldstack") - 1,
		1026	0
		1027	);
1020		1028
1021	/* set up @_ -- ugly */	1029	/* set up @_ -- ugly */
1022	av_clear (defav);	1030	av_clear (defav);
1023	av_fill (defav, items - 1);	1031	av_fill (defav, items - 1);
1024	while (items--)	1032	while (items--)
1025	av_store (defav, items, SvREFCNT_inc (ST(items)));	1033	av_store (defav, items, SvREFCNT_inc (ST(items)));
1026		1034
1027	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1028	sv = av_pop ((AV *)SvRV (returnstk));	1035	sv = av_pop ((AV *)SvRV (yieldstack));
1029	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1036	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1030	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1037	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1031	SvREFCNT_dec (sv);	1038	SvREFCNT_dec (sv);
1032		1039
1033	transfer(aTHX_ prev, next, 0);	1040	coro_state_transfer (aTHX_ prev, next, 0);
1034		1041
1035	MODULE = Coro::State PACKAGE = Coro	1042	MODULE = Coro::State PACKAGE = Coro
1036
1037	# this is slightly dirty (should expose a c-level api)
1038		1043
1039	BOOT:	1044	BOOT:
1040	{	1045	{
1041	int i;	1046	int i;
1042	HV *stash = gv_stashpv ("Coro", TRUE);	1047	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1062	coroapi.ready = api_ready;	1067	coroapi.ready = api_ready;
1063	coroapi.nready = &coro_nready;	1068	coroapi.nready = &coro_nready;
1064	coroapi.current = coro_current;	1069	coroapi.current = coro_current;
1065		1070
1066	GCoroAPI = &coroapi;	1071	GCoroAPI = &coroapi;
1067	sv_setiv(sv, (IV)&coroapi);	1072	sv_setiv (sv, (IV)&coroapi);
1068	SvREADONLY_on(sv);	1073	SvREADONLY_on (sv);
1069	}	1074	}
1070	}	1075	}
		1076
		1077	#if !PERL_MICRO
1071		1078
1072	void	1079	void
1073	ready(self)	1080	ready(self)
1074	SV * self	1081	SV * self
1075	PROTOTYPE: $	1082	PROTOTYPE: $
1076	CODE:	1083	CODE:
1077	api_ready (self);	1084	api_ready (self);
		1085
		1086	#endif
1078		1087
1079	int	1088	int
1080	nready(...)	1089	nready(...)
1081	PROTOTYPE:	1090	PROTOTYPE:
1082	CODE:	1091	CODE:
…		…
1094	cede(...)	1103	cede(...)
1095	PROTOTYPE:	1104	PROTOTYPE:
1096	CODE:	1105	CODE:
1097	api_cede ();	1106	api_cede ();
1098		1107
		1108	# and these are hacks
		1109	SV *
		1110	_aio_get_state ()
		1111	CODE:
		1112	{
		1113	struct {
		1114	int errorno;
		1115	int laststype;
		1116	int laststatval;
		1117	Stat_t statcache;
		1118	} data;
		1119
		1120	data.errorno = errno;
		1121	data.laststype = PL_laststype;
		1122	data.laststatval = PL_laststatval;
		1123	data.statcache = PL_statcache;
		1124
		1125	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1126	}
		1127	OUTPUT:
		1128	RETVAL
		1129
		1130	void
		1131	_aio_set_state (char *data_)
		1132	PROTOTYPE: $
		1133	CODE:
		1134	{
		1135	struct {
		1136	int errorno;
		1137	int laststype;
		1138	int laststatval;
		1139	Stat_t statcache;
		1140	} data = (void )data_;
		1141
		1142	errno = data->errorno;
		1143	PL_laststype = data->laststype;
		1144	PL_laststatval = data->laststatval;
		1145	PL_statcache = data->statcache;
		1146	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.45 by root, Tue May 27 01:15:31 2003 UTC vs. Revision 1.85 by root, Fri Nov 24 00:32:04 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.45 by root, Tue May 27 01:15:31 2003 UTC vs.
Revision 1.85 by root, Fri Nov 24 00:32:04 2006 UTC