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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 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 "patchlevel.h"	9	#include "patchlevel.h"
6		10
7	#if PATCHLEVEL < 6	11	#if PERL_VERSION < 6
8	# ifndef PL_ppaddr	12	# ifndef PL_ppaddr
9	# define PL_ppaddr ppaddr	13	# define PL_ppaddr ppaddr
10	# endif	14	# endif
11	# ifndef call_sv	15	# ifndef call_sv
12	# define call_sv perl_call_sv	16	# define call_sv perl_call_sv
23	# ifndef IS_PADCONST	27	# ifndef IS_PADCONST
24	# define IS_PADCONST(v) 0	28	# define IS_PADCONST(v) 0
25	# endif	29	# endif
26	#endif	30	#endif
27		31
28	#include "libcoro/coro.c"
29
30	#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
31		41
32	#ifdef HAVE_MMAP	42	#ifdef HAVE_MMAP
33	# include <unistd.h>	43	# include <unistd.h>
34	# include <sys/mman.h>	44	# include <sys/mman.h>
35	# ifndef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
…		…
37	# define MAP_ANONYMOUS MAP_ANON	47	# define MAP_ANONYMOUS MAP_ANON
38	# else	48	# else
39	# undef HAVE_MMAP	49	# undef HAVE_MMAP
40	# endif	50	# endif
41	# 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
42	#endif	59	# endif
43		60	#endif
44	#define MAY_FLUSH /* increases codesize and is rarely used */
45		61
46	#define SUB_INIT "Coro::State::initialize"	62	#define SUB_INIT "Coro::State::initialize"
47	#define UCORO_STATE "_coro_state"	63	#define UCORO_STATE "_coro_state"
48		64
49	/* 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
…		…
55		71
56	#define labs(l) ((l) >= 0 ? (l) : -(l))	72	#define labs(l) ((l) >= 0 ? (l) : -(l))
57		73
58	#include "CoroAPI.h"	74	#include "CoroAPI.h"
59		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
60	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 */
61		91
62	/* 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... */
63	typedef struct {	93	typedef struct {
64	int refcnt; /* pointer reference counter */	94	int refcnt; /* pointer reference counter */
65	int usecnt; /* shared by how many coroutines */	95	int usecnt; /* shared by how many coroutines */
…		…
70	void *sptr;	100	void *sptr;
71	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
72	} coro_stack;	102	} coro_stack;
73		103
74	struct coro {	104	struct coro {
75	/* the top-level JMPENV for each coroutine, needed to catch dies. */
76	JMPENV start_env;
77
78	/* the optional C context */	105	/* the optional C context */
79	coro_stack *stack;	106	coro_stack *stack;
80	void *cursp;	107	void *cursp;
81	int gencnt;	108	int gencnt;
82		109
…		…
95	AV *mainstack;	122	AV *mainstack;
96	SV **stack_sp;	123	SV **stack_sp;
97	OP *op;	124	OP *op;
98	SV **curpad;	125	SV **curpad;
99	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
100	SV **stack_base;	128	SV **stack_base;
101	SV **stack_max;	129	SV **stack_max;
102	SV **tmps_stack;	130	SV **tmps_stack;
103	I32 tmps_floor;	131	I32 tmps_floor;
104	I32 tmps_ix;	132	I32 tmps_ix;
…		…
113	I32 savestack_ix;	141	I32 savestack_ix;
114	I32 savestack_max;	142	I32 savestack_max;
115	OP **retstack;	143	OP **retstack;
116	I32 retstack_ix;	144	I32 retstack_ix;
117	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
118	COP *curcop;	147	COP *curcop;
119	JMPENV *top_env;	148	JMPENV *top_env;
120		149
		150	/* coro process data */
		151	int prio;
		152
121	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
122	AV *args;	154	AV *args;
		155	int refcnt;
123	};	156	};
124		157
125	typedef struct coro *Coro__State;	158	typedef struct coro *Coro__State;
126	typedef struct coro *Coro__State_or_hashref;	159	typedef struct coro *Coro__State_or_hashref;
127		160
128	static AV main_mainstack; / used to differentiate between $main and others */	161	static AV *
129	static HV *coro_state_stash;	162	coro_clone_padlist (pTHX_ CV *cv)
130	static SV *ucoro_state_sv;
131	static U32 ucoro_state_hash;
132	static HV *padlist_cache;
133	static SV coro_mortal; / will be freed after next transfer */
134
135	/* mostly copied from op.c:cv_clone2 */
136	STATIC AV *
137	clone_padlist (AV *protopadlist)
138	{	163	{
139	AV *av;	164	AV *padlist = CvPADLIST (cv);
140	I32 ix;
141	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
142	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
143	SV **pname = AvARRAY (protopad_name);
144	SV **ppad = AvARRAY (protopad);
145	I32 fname = AvFILLp (protopad_name);
146	I32 fpad = AvFILLp (protopad);
147	AV newpadlist, newpad_name, *newpad;	165	AV newpadlist, newpad;
148	SV **npad;
149
150	newpad_name = newAV ();
151	for (ix = fname; ix >= 0; ix--)
152	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
153
154	newpad = newAV ();
155	av_fill (newpad, AvFILLp (protopad));
156	npad = AvARRAY (newpad);
157		166
158	newpadlist = newAV ();	167	newpadlist = newAV ();
159	AvREAL_off (newpadlist);	168	AvREAL_off (newpadlist);
160	av_store (newpadlist, 0, (SV *) newpad_name);	169	#if PERL_VERSION < 9
		170	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
		171	#else
		172	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		173	#endif
		174	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
		175	--AvFILLp (padlist);
		176
		177	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
161	av_store (newpadlist, 1, (SV *) newpad);	178	av_store (newpadlist, 1, (SV *)newpad);
162		179
163	av = newAV (); /* will be @_ */	180	return newpadlist;
164	av_extend (av, 0);	181	}
165	av_store (newpad, 0, (SV *) av);
166	AvFLAGS (av) = AVf_REIFY;
167		182
168	for (ix = fpad; ix > 0; ix--)	183	static void
		184	free_padlist (pTHX_ AV *padlist)
		185	{
		186	/* may be during global destruction */
		187	if (SvREFCNT (padlist))
169	{	188	{
170	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	189	I32 i = AvFILLp (padlist);
171	if (namesv && namesv != &PL_sv_undef)	190	while (i >= 0)
172	{	191	{
173	char name = SvPVX (namesv); / XXX */	192	SV **svp = av_fetch (padlist, i--, FALSE);
174	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	193	if (svp)
175	{ /* lexical from outside? */
176	npad[ix] = SvREFCNT_inc (ppad[ix]);
177	}	194	{
178	else
179	{ /* our own lexical */
180	SV *sv;	195	SV *sv;
181	if (*name == '&')	196	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
182	sv = SvREFCNT_inc (ppad[ix]);	197	SvREFCNT_dec (sv);
183	else if (*name == '@')	198
184	sv = (SV *) newAV ();	199	SvREFCNT_dec (*svp);
185	else if (*name == '%')
186	sv = (SV *) newHV ();
187	else
188	sv = NEWSV (0, 0);
189	if (!SvPADBUSY (sv))
190	SvPADMY_on (sv);
191	npad[ix] = sv;
192	}	200	}
193	}	201	}
194	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	202
195	{	203	SvREFCNT_dec ((SV*)padlist);
196	npad[ix] = SvREFCNT_inc (ppad[ix]);
197	}
198	else
199	{
200	SV *sv = NEWSV (0, 0);
201	SvPADTMP_on (sv);
202	npad[ix] = sv;
203	}
204	}	204	}
		205	}
205		206
206	#if 0 /* return -ENOTUNDERSTOOD */	207	static int
207	/* Now that vars are all in place, clone nested closures. */	208	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		209	{
		210	AV *padlist;
		211	AV av = (AV )mg->mg_obj;
208		212
209	for (ix = fpad; ix > 0; ix--) {	213	/* casting is fun. */
210	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
211	if (namesv	215	free_padlist (aTHX_ padlist);
212	&& namesv != &PL_sv_undef	216
213	&& !(SvFLAGS(namesv) & SVf_FAKE)	217	SvREFCNT_dec (av);
214	&& *SvPVX(namesv) == '&'	218
215	&& CvCLONE(ppad[ix]))	219	return 0;
216	{	220	}
217	CV kid = cv_clone((CV)ppad[ix]);	221
218	SvREFCNT_dec(ppad[ix]);	222	#define PERL_MAGIC_coro PERL_MAGIC_ext
219	CvCLONE_on(kid);	223
220	SvPADMY_on(kid);	224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221	npad[ix] = (SV*)kid;	225
222	}	226	/* the next two functions merely cache the padlists */
		227	static void
		228	get_padlist (pTHX_ CV *cv)
		229	{
		230	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		231
		232	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
		233	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
		234	else
		235	{
		236	#if 0
		237	/* this should work - but it doesn't :( */
		238	CV *cp = Perl_cv_clone (aTHX_ cv);
		239	CvPADLIST (cv) = CvPADLIST (cp);
		240	CvPADLIST (cp) = 0;
		241	SvREFCNT_dec (cp);
		242	#else
		243	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
		244	#endif
		245	}
		246	}
		247
		248	static void
		249	put_padlist (pTHX_ CV *cv)
		250	{
		251	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
		252
		253	if (!mg)
		254	{
		255	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		256	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		257	mg->mg_virtual = &vtbl_coro;
		258	mg->mg_obj = (SV *)newAV ();
223	}	259	}
224	#endif
225		260
226	return newpadlist;
227	}
228
229	#ifdef MAY_FLUSH
230	STATIC void
231	free_padlist (AV *padlist)
232	{
233	/* may be during global destruction */
234	if (SvREFCNT(padlist))
235	{
236	I32 i = AvFILLp(padlist);
237	while (i >= 0)
238	{
239	SV **svp = av_fetch(padlist, i--, FALSE);
240	SV sv = svp ? svp : Nullsv;
241	if (sv)
242	SvREFCNT_dec(sv);
243	}
244
245	SvREFCNT_dec((SV*)padlist);
246	}
247	}
248	#endif
249
250	/* the next two functions merely cache the padlists */
251	STATIC void
252	get_padlist (CV *cv)
253	{
254	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
255
256	if (he && AvFILLp ((AV )he) >= 0)
257	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
258	else
259	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
260	}
261
262	STATIC void
263	put_padlist (CV *cv)
264	{
265	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
266
267	if (SvTYPE (*he) != SVt_PVAV)
268	{
269	SvREFCNT_dec (*he);
270	he = (SV )newAV ();
271	}
272
273	av_push ((AV )he, (SV *)CvPADLIST (cv));	261	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
274	}	262	}
275
276	#ifdef MAY_FLUSH
277	STATIC void
278	flush_padlist_cache ()
279	{
280	HV *hv = padlist_cache;
281	padlist_cache = newHV ();
282
283	if (hv_iterinit (hv))
284	{
285	HE *he;
286	AV *padlist;
287
288	while (!!(he = hv_iternext (hv)))
289	{
290	AV av = (AV )HeVAL(he);
291
292	/* casting is fun. */
293	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
294	free_padlist (padlist);
295	}
296	}
297
298	SvREFCNT_dec (hv);
299	}
300	#endif
301		263
302	#define SB do {	264	#define SB do {
303	#define SE } while (0)	265	#define SE } while (0)
304		266
305	#define LOAD(state) load_state(aTHX_ (state));	267	#define LOAD(state) load_state(aTHX_ (state));
306	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	268	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
307		269
308	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	270	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
309		271
310	static void	272	static void
311	load_state(pTHX_ Coro__State c)	273	load_state(pTHX_ Coro__State c)
312	{	274	{
313	PL_dowarn = c->dowarn;	275	PL_dowarn = c->dowarn;
…		…
318	PL_mainstack = c->mainstack;	280	PL_mainstack = c->mainstack;
319	PL_stack_sp = c->stack_sp;	281	PL_stack_sp = c->stack_sp;
320	PL_op = c->op;	282	PL_op = c->op;
321	PL_curpad = c->curpad;	283	PL_curpad = c->curpad;
322	PL_comppad = c->comppad;	284	PL_comppad = c->comppad;
		285	PL_compcv = c->compcv;
323	PL_stack_base = c->stack_base;	286	PL_stack_base = c->stack_base;
324	PL_stack_max = c->stack_max;	287	PL_stack_max = c->stack_max;
325	PL_tmps_stack = c->tmps_stack;	288	PL_tmps_stack = c->tmps_stack;
326	PL_tmps_floor = c->tmps_floor;	289	PL_tmps_floor = c->tmps_floor;
327	PL_tmps_ix = c->tmps_ix;	290	PL_tmps_ix = c->tmps_ix;
…		…
333	PL_scopestack_ix = c->scopestack_ix;	296	PL_scopestack_ix = c->scopestack_ix;
334	PL_scopestack_max = c->scopestack_max;	297	PL_scopestack_max = c->scopestack_max;
335	PL_savestack = c->savestack;	298	PL_savestack = c->savestack;
336	PL_savestack_ix = c->savestack_ix;	299	PL_savestack_ix = c->savestack_ix;
337	PL_savestack_max = c->savestack_max;	300	PL_savestack_max = c->savestack_max;
		301	#if PERL_VERSION < 9
338	PL_retstack = c->retstack;	302	PL_retstack = c->retstack;
339	PL_retstack_ix = c->retstack_ix;	303	PL_retstack_ix = c->retstack_ix;
340	PL_retstack_max = c->retstack_max;	304	PL_retstack_max = c->retstack_max;
		305	#endif
		306	PL_curpm = c->curpm;
341	PL_curcop = c->curcop;	307	PL_curcop = c->curcop;
342	PL_top_env = c->top_env;	308	PL_top_env = c->top_env;
343		309
344	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
345	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
354	{	320	{
355	AV padlist = (AV )POPs;	321	AV padlist = (AV )POPs;
356		322
357	if (padlist)	323	if (padlist)
358	{	324	{
359	put_padlist (cv); /* mark this padlist as available */	325	put_padlist (aTHX_ cv); /* mark this padlist as available */
360	CvPADLIST(cv) = padlist;	326	CvPADLIST(cv) = padlist;
361	#ifdef USE_THREADS
362	/CvOWNER(cv) = (struct perl_thread )POPs;*/
363	#endif
364	}	327	}
365		328
366	++CvDEPTH(cv);	329	++CvDEPTH(cv);
367	}	330	}
368		331
…		…
395	if (CxTYPE(cx) == CXt_SUB)	358	if (CxTYPE(cx) == CXt_SUB)
396	{	359	{
397	CV *cv = cx->blk_sub.cv;	360	CV *cv = cx->blk_sub.cv;
398	if (CvDEPTH(cv))	361	if (CvDEPTH(cv))
399	{	362	{
400	#ifdef USE_THREADS
401	/XPUSHs ((SV )CvOWNER(cv));*/
402	/CvOWNER(cv) = 0;/
403	/error must unlock this cv etc.. etc.../
404	#endif
405	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, CvDEPTH(cv)*2);
406		364
407	while (--CvDEPTH(cv))	365	while (--CvDEPTH(cv))
408	{	366	{
409	/* this tells the restore code to increment CvDEPTH */	367	/* this tells the restore code to increment CvDEPTH */
…		…
412	}	370	}
413		371
414	PUSHs ((SV *)CvPADLIST(cv));	372	PUSHs ((SV *)CvPADLIST(cv));
415	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
416		374
417	get_padlist (cv); /* this is a monster */	375	get_padlist (aTHX_ cv);
418	}	376	}
419	}	377	}
420	#ifdef CXt_FORMAT	378	#ifdef CXt_FORMAT
421	else if (CxTYPE(cx) == CXt_FORMAT)	379	else if (CxTYPE(cx) == CXt_FORMAT)
422	{	380	{
…		…
450	c->mainstack = PL_mainstack;	408	c->mainstack = PL_mainstack;
451	c->stack_sp = PL_stack_sp;	409	c->stack_sp = PL_stack_sp;
452	c->op = PL_op;	410	c->op = PL_op;
453	c->curpad = PL_curpad;	411	c->curpad = PL_curpad;
454	c->comppad = PL_comppad;	412	c->comppad = PL_comppad;
		413	c->compcv = PL_compcv;
455	c->stack_base = PL_stack_base;	414	c->stack_base = PL_stack_base;
456	c->stack_max = PL_stack_max;	415	c->stack_max = PL_stack_max;
457	c->tmps_stack = PL_tmps_stack;	416	c->tmps_stack = PL_tmps_stack;
458	c->tmps_floor = PL_tmps_floor;	417	c->tmps_floor = PL_tmps_floor;
459	c->tmps_ix = PL_tmps_ix;	418	c->tmps_ix = PL_tmps_ix;
…		…
465	c->scopestack_ix = PL_scopestack_ix;	424	c->scopestack_ix = PL_scopestack_ix;
466	c->scopestack_max = PL_scopestack_max;	425	c->scopestack_max = PL_scopestack_max;
467	c->savestack = PL_savestack;	426	c->savestack = PL_savestack;
468	c->savestack_ix = PL_savestack_ix;	427	c->savestack_ix = PL_savestack_ix;
469	c->savestack_max = PL_savestack_max;	428	c->savestack_max = PL_savestack_max;
		429	#if PERL_VERSION < 9
470	c->retstack = PL_retstack;	430	c->retstack = PL_retstack;
471	c->retstack_ix = PL_retstack_ix;	431	c->retstack_ix = PL_retstack_ix;
472	c->retstack_max = PL_retstack_max;	432	c->retstack_max = PL_retstack_max;
		433	#endif
		434	c->curpm = PL_curpm;
473	c->curcop = PL_curcop;	435	c->curcop = PL_curcop;
474	c->top_env = PL_top_env;	436	c->top_env = PL_top_env;
475	}	437	}
476		438
477	/*	439	/*
478	* allocate various perl stacks. This is an exact copy	440	* allocate various perl stacks. This is an exact copy
479	* of perl.c:init_stacks, except that it uses less memory	441	* of perl.c:init_stacks, except that it uses less memory
480	* on the assumption that coroutines do not usually need	442	* on the (sometimes correct) assumption that coroutines do
481	* a lot of stackspace.	443	* not usually need a lot of stackspace.
482	*/	444	*/
483	STATIC void	445	static void
484	coro_init_stacks (pTHX)	446	coro_init_stacks (pTHX)
485	{	447	{
		448	LOCK;
		449
486	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
487	PL_curstackinfo->si_type = PERLSI_MAIN;	451	PL_curstackinfo->si_type = PERLSI_MAIN;
488	PL_curstack = PL_curstackinfo->si_stack;	452	PL_curstack = PL_curstackinfo->si_stack;
489	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	453	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
490		454
…		…
511		475
512	New(54,PL_savestack,96,ANY);	476	New(54,PL_savestack,96,ANY);
513	PL_savestack_ix = 0;	477	PL_savestack_ix = 0;
514	PL_savestack_max = 96;	478	PL_savestack_max = 96;
515		479
		480	#if PERL_VERSION < 9
516	New(54,PL_retstack,8,OP*);	481	New(54,PL_retstack,8,OP*);
517	PL_retstack_ix = 0;	482	PL_retstack_ix = 0;
518	PL_retstack_max = 8;	483	PL_retstack_max = 8;
		484	#endif
		485
		486	UNLOCK;
519	}	487	}
520		488
521	/*	489	/*
522	* destroy the stacks, the callchain etc...	490	* destroy the stacks, the callchain etc...
523	* still there is a memleak of 128 bytes...
524	*/	491	*/
525	STATIC void	492	static void
526	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
527	{	494	{
528	if (!IN_DESTRUCT)	495	if (!IN_DESTRUCT)
529	{	496	{
530	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
531	while (PL_scopestack_ix)	498	LEAVE_SCOPE (0);
532	LEAVE;
533		499
534	/* sure it is, but more important: is it correct?? :/ */	500	/* sure it is, but more important: is it correct?? :/ */
535	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
536	FREETMPS;	501	FREETMPS;
		502
		503	/POPSTACK_TO (PL_mainstack);//D//use/
537	}	504	}
538		505
539	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
540	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
541		508
542	while (PL_curstackinfo)	509	while (PL_curstackinfo)
543	{	510	{
544	PERL_SI *p = PL_curstackinfo->si_prev;	511	PERL_SI *p = PL_curstackinfo->si_prev;
545		512
546	{	513	{ /D//remove/
547	dSP;	514	dSP;
548	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
549	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
550	}	517	}
551		518
552	if (!IN_DESTRUCT)	519	if (!IN_DESTRUCT)
553	{	520	{
554	dounwind(-1);	521	dounwind (-1);/D//remove/
555	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec (PL_curstackinfo->si_stack);
556	}	523	}
557		524
558	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree (PL_curstackinfo->si_cxstack);
559	Safefree(PL_curstackinfo);	526	Safefree (PL_curstackinfo);
560	PL_curstackinfo = p;	527	PL_curstackinfo = p;
561	}	528	}
562		529
563	Safefree(PL_tmps_stack);	530	Safefree (PL_tmps_stack);
564	Safefree(PL_markstack);	531	Safefree (PL_markstack);
565	Safefree(PL_scopestack);	532	Safefree (PL_scopestack);
566	Safefree(PL_savestack);	533	Safefree (PL_savestack);
		534	#if PERL_VERSION < 9
567	Safefree(PL_retstack);	535	Safefree (PL_retstack);
		536	#endif
568	}	537	}
569		538
570	static void	539	static void
571	allocate_stack (Coro__State ctx, int alloc)	540	allocate_stack (Coro__State ctx, int alloc)
572	{	541	{
…		…
575	New (0, stack, 1, coro_stack);	544	New (0, stack, 1, coro_stack);
576		545
577	stack->refcnt = 1;	546	stack->refcnt = 1;
578	stack->usecnt = 1;	547	stack->usecnt = 1;
579	stack->gencnt = ctx->gencnt = 0;	548	stack->gencnt = ctx->gencnt = 0;
		549
580	if (alloc)	550	if (alloc)
581	{	551	{
582	#if HAVE_MMAP	552	#if HAVE_MMAP
583	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	553	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */
584	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	554	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
585	if (stack->sptr == (void *)-1)	555	if (stack->sptr != (void *)-1)
586	#endif
587	{	556	{
588	/FIXME//D//* reasonable stack size! */	557	# if STACKGUARD
		558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		559	# endif
		560	}
		561	else
		562	#endif
		563	{
589	stack->ssize = -4096 * sizeof (long);	564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
590	New (0, stack->sptr, 4096, long);	565	New (0, stack->sptr, STACKSIZE, long);
591	}	566	}
592	}	567	}
593	else	568	else
594	stack->sptr = 0;	569	stack->sptr = 0;
595		570
…		…
609	{	584	{
610	#ifdef HAVE_MMAP	585	#ifdef HAVE_MMAP
611	if (stack->ssize > 0 && stack->sptr)	586	if (stack->ssize > 0 && stack->sptr)
612	munmap (stack->sptr, stack->ssize);	587	munmap (stack->sptr, stack->ssize);
613	else	588	else
614	#else	589	#endif
615	Safefree (stack->sptr);	590	Safefree (stack->sptr);
616	#endif	591
617	Safefree (stack);	592	Safefree (stack);
618	}	593	}
619	else if (ctx->gencnt == stack->gencnt)	594	else if (ctx->gencnt == stack->gencnt)
620	--stack->usecnt;	595	--stack->usecnt;
621	}	596	}
…		…
625	setup_coro (void *arg)	600	setup_coro (void *arg)
626	{	601	{
627	/*	602	/*
628	* emulate part of the perl startup here.	603	* emulate part of the perl startup here.
629	*/	604	*/
		605	dTHX;
630	dSP;	606	dSP;
631	Coro__State ctx = (Coro__State)arg;	607	Coro__State ctx = (Coro__State)arg;
632	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
633		609
634	coro_init_stacks (aTHX);	610	coro_init_stacks (aTHX);
635	/PL_curcop = 0;/	611	/PL_curcop = 0;/
636	/PL_in_eval = PL_in_eval;/ /* inherit */	612	/PL_in_eval = PL_in_eval;/ /* inherit */
637	SvREFCNT_dec (GvAV (PL_defgv));	613	SvREFCNT_dec (GvAV (PL_defgv));
638	GvAV (PL_defgv) = ctx->args;	614	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
639		615
640	SPAGAIN;	616	SPAGAIN;
641		617
642	if (ctx->stack)	618	if (ctx->stack)
643	{	619	{
…		…
654	}	630	}
655	else	631	else
656	{	632	{
657	UNOP myop;	633	UNOP myop;
658		634
659	PL_op = (OP *)&myop;
660
661	Zero(&myop, 1, UNOP);	635	Zero(&myop, 1, UNOP);
662	myop.op_next = Nullop;	636	myop.op_next = Nullop;
663	myop.op_flags = OPf_WANT_VOID;	637	myop.op_flags = OPf_WANT_VOID;
		638
		639	PL_op = (OP *)&myop;
664		640
665	PUSHMARK(SP);	641	PUSHMARK(SP);
666	XPUSHs (sub_init);	642	XPUSHs (sub_init);
667	/*	643	/*
668	* the next line is slightly wrong, as PL_op->op_next	644	* the next line is slightly wrong, as PL_op->op_next
…		…
683	continue_coro (void *arg)	659	continue_coro (void *arg)
684	{	660	{
685	/*	661	/*
686	* this is a _very_ stripped down perl interpreter ;)	662	* this is a _very_ stripped down perl interpreter ;)
687	*/	663	*/
		664	dTHX;
688	Coro__State ctx = (Coro__State)arg;	665	Coro__State ctx = (Coro__State)arg;
689	JMPENV coro_start_env;
690		666
691	PL_top_env = &ctx->start_env;	667	PL_top_env = &PL_start_env;
692		668
693	ctx->cursp = 0;	669	ctx->cursp = 0;
694	PL_op = PL_op->op_next;	670	PL_op = PL_op->op_next;
695	CALLRUNOPS(aTHX);	671	CALLRUNOPS(aTHX);
696		672
697	abort ();	673	abort ();
698	}	674	}
699		675
700	STATIC void	676	/* never call directly, always through the coro_state_transfer global variable */
		677	static void
701	transfer(pTHX_ struct coro prev, struct coro next, int flags)	678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
702	{	679	{
703	dSTACKLEVEL;	680	dSTACKLEVEL;
704	static struct coro *xnext;
705		681
706	if (prev != next)	682	if (prev != next)
707	{	683	{
708	xnext = next;	684	/* has this coro been created yet? */
709
710	if (next->mainstack)	685	if (next->mainstack)
711	{	686	{
		687	LOCK;
712	SAVE (prev, flags);	688	SAVE (prev, flags);
713	LOAD (next);	689	LOAD (next);
		690	UNLOCK;
714		691
715	/* mark this state as in-use */	692	/* mark this state as in-use */
716	next->mainstack = 0;	693	next->mainstack = 0;
717	next->tmps_ix = -2;	694	next->tmps_ix = -2;
718		695
…		…
737	continue_coro, (void *)next,	714	continue_coro, (void *)next,
738	next->stack->sptr, labs (next->stack->ssize));	715	next->stack->sptr, labs (next->stack->ssize));
739	}	716	}
740		717
741	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		719	prev->cursp = stacklevel;
742	/* don't add any code here */	720	/* don't add any code here */
743	}	721	}
744		722	else
		723	next->cursp = stacklevel;
745	}	724	}
746	else if (next->tmps_ix == -2)	725	else if (next->tmps_ix == -2)
747	croak ("tried to transfer to running coroutine");	726	croak ("tried to transfer to running coroutine");
748	else	727	else
749	{	728	{
		729	LOCK;
750	SAVE (prev, -1); /* first get rid of the old state */	730	SAVE (prev, -1); /* first get rid of the old state */
		731	UNLOCK;
751		732
		733	/* create the coroutine for the first time */
752	if (flags & TRANSFER_SAVE_CCTXT)	734	if (flags & TRANSFER_SAVE_CCTXT)
753	{	735	{
754	if (!prev->stack)	736	if (!prev->stack)
755	allocate_stack (prev, 0);	737	allocate_stack (prev, 0);
756		738
		739	/* the new coroutine starts with start_env again */
		740	PL_top_env = &PL_start_env;
		741
757	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
758	{	743	{
759	PL_top_env = &next->start_env;
760
761	setup_coro (next);	744	setup_coro (next);
		745	next->cursp = stacklevel;
762		746
763	prev->stack->refcnt++;	747	prev->stack->refcnt++;
764	prev->stack->usecnt++;	748	prev->stack->usecnt++;
765	next->stack = prev->stack;	749	next->stack = prev->stack;
766	next->gencnt = prev->gencnt;	750	next->gencnt = prev->gencnt;
767	}	751	}
768	else	752	else
769	{	753	{
		754	assert (!next->stack);
770	allocate_stack (next, 1);	755	allocate_stack (next, 1);
771	coro_create (&(next->stack->cctx),	756	coro_create (&(next->stack->cctx),
772	setup_coro, (void *)next,	757	setup_coro, (void *)next,
773	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
774	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		760	prev->cursp = stacklevel;
775	/* don't add any code here */	761	/* don't add any code here */
776	}	762	}
777	}	763	}
778	else	764	else
		765	{
779	setup_coro (next);	766	setup_coro (next);
		767	next->cursp = stacklevel;
		768	}
780	}	769	}
781
782	/*
783	* xnext is now either prev or next, depending on wether
784	* we switched the c stack or not. that's why I use a global
785	* variable, that should become thread-specific at one point.
786	*/
787	xnext->cursp = stacklevel;
788	}	770	}
789		771
		772	LOCK;
790	if (coro_mortal)	773	if (coro_mortal)
791	{	774	{
792	SvREFCNT_dec (coro_mortal);	775	SvREFCNT_dec (coro_mortal);
793	coro_mortal = 0;	776	coro_mortal = 0;
794	}	777	}
		778	UNLOCK;
795	}	779	}
		780
		781	/* use this function pointer to call the above function */
		782	/* this is done to increase chances of the compiler not inlining the call */
		783	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;
796		784
797	#define SV_CORO(sv,func) \	785	#define SV_CORO(sv,func) \
798	do { \	786	do { \
799	if (SvROK (sv)) \	787	if (SvROK (sv)) \
800	sv = SvRV (sv); \	788	sv = SvRV (sv); \
801	\	789	\
802	if (SvTYPE(sv) == SVt_PVHV) \	790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \
803	{ \	791	{ \
804	HE he = hv_fetch_ent((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \	792	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
805	\	793	\
806	if (!he) \	794	if (!he) \
807	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \	795	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
808	\	796	\
809	(sv) = SvRV (HeVAL(he)); \	797	(sv) = SvRV (HeVAL(he)); \
810	} \	798	} \
811	\	799	\
812	/* must also be changed inside Coro::Cont::yield */ \	800	/* must also be changed inside Coro::Cont::yield */ \
813	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
814	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \	802	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
815	\	803	\
816	} while(0)	804	} while(0)
817		805
818	#define SvSTATE(sv) (struct coro *)SvIV (sv)	806	static void
		807	coro_state_destroy (struct coro *coro)
		808	{
		809	if (coro->refcnt--)
		810	return;
819		811
		812	if (coro->mainstack && coro->mainstack != main_mainstack)
		813	{
		814	struct coro temp;
		815
		816	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
		817	LOAD (aTHX_ coro);
		818
		819	destroy_stacks (aTHX);
		820
		821	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		822
		823	coro->mainstack = 0;
		824	}
		825
		826	deallocate_stack (coro);
		827	SvREFCNT_dec (coro->args);
		828	Safefree (coro);
		829	}
		830
820	static void	831	static int
		832	coro_state_clear (SV sv, MAGIC mg)
		833	{
		834	struct coro coro = (struct coro )mg->mg_ptr;
		835	mg->mg_ptr = 0;
		836
		837	coro_state_destroy (coro);
		838
		839	return 0;
		840	}
		841
		842	static int
		843	coro_state_dup (MAGIC mg, CLONE_PARAMS params)
		844	{
		845	struct coro coro = (struct coro )mg->mg_ptr;
		846
		847	++coro->refcnt;
		848
		849	return 0;
		850	}
		851
		852	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };
		853
		854	static struct coro *
		855	SvSTATE (SV *coro)
		856	{
		857	MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro);
		858	assert (mg->mg_type == PERL_MAGIC_ext);
		859	return (struct coro *)mg->mg_ptr;
		860	}
		861
		862	static void
821	api_transfer(pTHX_ SV prev, SV next, int flags)	863	api_transfer (pTHX_ SV prev, SV next, int flags)
822	{	864	{
823	SV_CORO (prev, "Coro::transfer");	865	SV_CORO (prev, "Coro::transfer");
824	SV_CORO (next, "Coro::transfer");	866	SV_CORO (next, "Coro::transfer");
825		867
826	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
827	}	869	}
828		870
829	/ Coro ******************************************************************/	871	/ Coro ******************************************************************/
830		872
831	#define PRIO_MAX 3	873	#define PRIO_MAX 3
…		…
835	#define PRIO_IDLE -3	877	#define PRIO_IDLE -3
836	#define PRIO_MIN -4	878	#define PRIO_MIN -4
837		879
838	/* for Coro.pm */	880	/* for Coro.pm */
839	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
840	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
841	static int coro_nready;	883	static int coro_nready;
842		884
843	static void	885	static void
844	coro_enq (SV *sv)	886	coro_enq (pTHX_ SV *sv)
845	{	887	{
		888	int prio;
		889
846	if (SvTYPE (sv) == SVt_PVHV)	890	if (SvTYPE (sv) != SVt_PVHV)
847	{
848	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
849	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
850
851	prio = prio > PRIO_MAX ? PRIO_MAX
852	: prio < PRIO_MIN ? PRIO_MIN
853	: prio;
854
855	av_push (coro_ready [prio - PRIO_MIN], sv);
856	coro_nready++;
857
858	return;
859	}
860
861	croak ("Coro::ready tried to enqueue something that is not a coroutine");	891	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		892
		893	{
		894	SV *coro = sv;
		895	SV_CORO (coro, "omg");
		896	prio = SvSTATE (coro)->prio;
		897	}
		898
		899	av_push (coro_ready [prio - PRIO_MIN], sv);
		900	coro_nready++;
862	}	901	}
863		902
864	static SV *	903	static SV *
865	coro_deq (int min_prio)	904	coro_deq (pTHX_ int min_prio)
866	{	905	{
867	int prio = PRIO_MAX - PRIO_MIN;	906	int prio = PRIO_MAX - PRIO_MIN;
868		907
869	min_prio -= PRIO_MIN;	908	min_prio -= PRIO_MIN;
870	if (min_prio < 0)	909	if (min_prio < 0)
871	min_prio = 0;	910	min_prio = 0;
872		911
873	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	912	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
874	if (av_len (coro_ready[prio]) >= 0)	913	if (AvFILLp (coro_ready [prio]) >= 0)
875	{	914	{
876	coro_nready--;	915	coro_nready--;
877	return av_shift (coro_ready[prio]);	916	return av_shift (coro_ready [prio]);
878	}	917	}
879		918
880	return 0;	919	return 0;
881	}	920	}
882		921
883	static void	922	static void
884	api_ready (SV *coro)	923	api_ready (SV *coro)
885	{	924	{
		925	dTHX;
		926
886	if (SvROK (coro))	927	if (SvROK (coro))
887	coro = SvRV (coro);	928	coro = SvRV (coro);
888		929
		930	LOCK;
889	coro_enq (SvREFCNT_inc (coro));	931	coro_enq (aTHX_ SvREFCNT_inc (coro));
		932	UNLOCK;
890	}	933	}
891		934
892	static void	935	static void
893	api_schedule (void)	936	api_schedule (void)
894	{	937	{
		938	dTHX;
		939
895	SV prev, next;	940	SV prev, next;
896		941
		942	LOCK;
		943
897	prev = SvRV (GvSV (coro_current));	944	prev = SvRV (GvSV (coro_current));
898	next = coro_deq (PRIO_MIN);	945	next = coro_deq (aTHX_ PRIO_MIN);
899		946
900	if (!next)	947	if (!next)
901	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
902		949
903	/* free this only after the transfer */	950	/* free this only after the transfer */
…		…
906		953
907	SvRV (GvSV (coro_current)) = next;	954	SvRV (GvSV (coro_current)) = next;
908		955
909	SV_CORO (next, "Coro::schedule");	956	SV_CORO (next, "Coro::schedule");
910		957
		958	UNLOCK;
		959
911	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
912	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
913	}	962	}
914		963
915	static void	964	static void
916	api_cede (void)	965	api_cede (void)
917	{	966	{
		967	dTHX;
		968
		969	LOCK;
918	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
919		972
920	api_schedule ();	973	api_schedule ();
921	}	974	}
922		975
923	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
924		977
925	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
926		979
927	BOOT:	980	BOOT:
928	{ /* {} necessary for stoopid perl-5.6.x */	981	{ /* {} necessary for stoopid perl-5.6.x */
		982	#ifdef USE_ITHREADS
		983	MUTEX_INIT (&coro_mutex);
		984	#endif
		985	BOOT_PAGESIZE;
		986
929	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
930	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
931	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
932		990
933	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
934	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
935	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
936	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
937		995
938	if (!padlist_cache)
939	padlist_cache = newHV ();
940
941	main_mainstack = PL_mainstack;	996	main_mainstack = PL_mainstack;
942		997
943	coroapi.ver = CORO_API_VERSION;	998	coroapi.ver = CORO_API_VERSION;
944	coroapi.transfer = api_transfer;	999	coroapi.transfer = api_transfer;
945	}
946		1000
947	Coro::State	1001	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
948	_newprocess(args)	1002	}
949	SV * args	1003
950	PROTOTYPE: $	1004	SV *
		1005	new (char *klass, ...)
951	CODE:	1006	CODE:
952	Coro__State coro;	1007	{
		1008	struct coro *coro;
		1009	HV *hv;
		1010	int i;
953		1011
954	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
955	croak ("Coro::State::_newprocess expects an arrayref");
956
957	New (0, coro, 1, struct coro);	1012	Newz (0, coro, 1, struct coro);
		1013	coro->args = newAV ();
958		1014
959	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1015	for (i = 1; i < items; i++)
		1016	av_push (coro->args, newSVsv (ST (i)));
		1017
960	coro->mainstack = 0; /* actual work is done inside transfer */	1018	/coro->mainstack = 0; //actual work is done inside transfer /
961	coro->stack = 0;	1019	/coro->stack = 0;/
962		1020
963	/* same as JMPENV_BOOTSTRAP */	1021	hv = newHV ();
964	/* we might be able to recycle start_env, but safe is safe */	1022	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
965	Zero(&coro->start_env, 1, JMPENV);	1023	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
966	coro->start_env.je_ret = -1;	1024	}
967	coro->start_env.je_mustcatch = TRUE;
968
969	RETVAL = coro;
970	OUTPUT:	1025	OUTPUT:
971	RETVAL	1026	RETVAL
972		1027
973	void	1028	void
974	transfer(prev, next, flags)	1029	transfer(prev, next, flags)
975	SV *prev	1030	SV *prev
976	SV *next	1031	SV *next
977	int flags	1032	int flags
978	PROTOTYPE: @
979	CODE:	1033	CODE:
980	PUTBACK;	1034	PUTBACK;
981	SV_CORO (next, "Coro::transfer");	1035	SV_CORO (next, "Coro::transfer");
982	SV_CORO (prev, "Coro::transfer");	1036	SV_CORO (prev, "Coro::transfer");
983	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
984	SPAGAIN;	1038	SPAGAIN;
985		1039
		1040	int
		1041	prio (Coro::State coro, int newprio = 0)
		1042	ALIAS:
		1043	nice = 1
		1044	CODE:
		1045	{
		1046	RETVAL = coro->prio;
		1047
		1048	if (items > 1)
		1049	{
		1050	if (ix)
		1051	newprio += coro->prio;
		1052
		1053	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1054	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1055
		1056	coro->prio = newprio;
		1057	}
		1058	}
		1059
986	void	1060	void
987	DESTROY(coro)	1061	_clone_state_from (SV dst, SV src)
988	Coro::State coro	1062	CODE:
989	CODE:	1063	{
		1064	struct coro *coro_src = SvSTATE (src);
990		1065
991	if (coro->mainstack && coro->mainstack != main_mainstack)	1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
992	{
993	struct coro temp;
994		1067
995	PUTBACK;	1068	++coro_src->refcnt;
996	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1069	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
997	LOAD(aTHX_ coro);	1070	}
998	SPAGAIN;
999
1000	destroy_stacks (aTHX);
1001
1002	LOAD((&temp)); /* this will get rid of defsv etc.. */
1003	SPAGAIN;
1004
1005	coro->mainstack = 0;
1006	}
1007
1008	deallocate_stack (coro);
1009
1010	Safefree (coro);
1011		1071
1012	void	1072	void
1013	flush()
1014	CODE:
1015	#ifdef MAY_FLUSH
1016	flush_padlist_cache ();
1017	#endif
1018
1019	void
1020	_exit(code)	1073	_exit (code)
1021	int code	1074	int code
1022	PROTOTYPE: $	1075	PROTOTYPE: $
1023	CODE:	1076	CODE:
1024	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
1025	_exit (code);	1077	_exit (code);
1026	#else
1027	signal (SIGTERM, SIG_DFL);
1028	raise (SIGTERM);
1029	exit (code);
1030	#endif
1031		1078
1032	MODULE = Coro::State PACKAGE = Coro::Cont	1079	MODULE = Coro::State PACKAGE = Coro::Cont
1033		1080
1034	# this is slightly dirty (should expose a c-level api)
1035
1036	void	1081	void
1037	yield(...)	1082	yield (...)
1038	PROTOTYPE: @	1083	PROTOTYPE: @
1039	CODE:	1084	CODE:
1040	static SV *returnstk;	1085	SV *yieldstack;
1041	SV *sv;	1086	SV *sv;
1042	AV *defav = GvAV (PL_defgv);	1087	AV *defav = GvAV (PL_defgv);
1043	struct coro prev, next;	1088	struct coro prev, next;
1044		1089
1045	if (!returnstk)	1090	yieldstack = *hv_fetch (
1046	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));	1091	(HV *)SvRV (GvSV (coro_current)),
		1092	"yieldstack", sizeof ("yieldstack") - 1,
		1093	0
		1094	);
1047		1095
1048	/* set up @_ -- ugly */	1096	/* set up @_ -- ugly */
1049	av_clear (defav);	1097	av_clear (defav);
1050	av_fill (defav, items - 1);	1098	av_fill (defav, items - 1);
1051	while (items--)	1099	while (items--)
1052	av_store (defav, items, SvREFCNT_inc (ST(items)));	1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1053		1101
1054	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1055	sv = av_pop ((AV *)SvRV (returnstk));	1102	sv = av_pop ((AV *)SvRV (yieldstack));
1056	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1103	prev = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 0, 0)));
1057	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1104	next = SvSTATE ((SV)SvRV (av_fetch ((AV *)SvRV (sv), 1, 0)));
1058	SvREFCNT_dec (sv);	1105	SvREFCNT_dec (sv);
1059		1106
1060	transfer(aTHX_ prev, next, 0);	1107	coro_state_transfer (aTHX_ prev, next, 0);
1061		1108
1062	MODULE = Coro::State PACKAGE = Coro	1109	MODULE = Coro::State PACKAGE = Coro
1063
1064	# this is slightly dirty (should expose a c-level api)
1065		1110
1066	BOOT:	1111	BOOT:
1067	{	1112	{
1068	int i;	1113	int i;
1069	HV *stash = gv_stashpv ("Coro", TRUE);	1114	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1089	coroapi.ready = api_ready;	1134	coroapi.ready = api_ready;
1090	coroapi.nready = &coro_nready;	1135	coroapi.nready = &coro_nready;
1091	coroapi.current = coro_current;	1136	coroapi.current = coro_current;
1092		1137
1093	GCoroAPI = &coroapi;	1138	GCoroAPI = &coroapi;
1094	sv_setiv(sv, (IV)&coroapi);	1139	sv_setiv (sv, (IV)&coroapi);
1095	SvREADONLY_on(sv);	1140	SvREADONLY_on (sv);
1096	}	1141	}
1097	}	1142	}
1098		1143
		1144	#if !PERL_MICRO
		1145
1099	void	1146	void
1100	ready(self)	1147	ready (self)
1101	SV * self	1148	SV * self
1102	PROTOTYPE: $	1149	PROTOTYPE: $
1103	CODE:	1150	CODE:
1104	api_ready (self);	1151	api_ready (self);
1105		1152
		1153	#endif
		1154
1106	int	1155	int
1107	nready(...)	1156	nready (...)
1108	PROTOTYPE:	1157	PROTOTYPE:
1109	CODE:	1158	CODE:
1110	RETVAL = coro_nready;	1159	RETVAL = coro_nready;
1111	OUTPUT:	1160	OUTPUT:
1112	RETVAL	1161	RETVAL
1113		1162
1114	void	1163	void
1115	schedule(...)	1164	schedule (...)
1116	PROTOTYPE:	1165	PROTOTYPE:
1117	CODE:	1166	CODE:
1118	api_schedule ();	1167	api_schedule ();
1119		1168
1120	void	1169	void
1121	cede(...)	1170	cede (...)
1122	PROTOTYPE:	1171	PROTOTYPE:
1123	CODE:	1172	CODE:
1124	api_cede ();	1173	api_cede ();
1125		1174
		1175	# and these are hacks
		1176	SV *
		1177	_aio_get_state ()
		1178	CODE:
		1179	{
		1180	struct {
		1181	int errorno;
		1182	int laststype;
		1183	int laststatval;
		1184	Stat_t statcache;
		1185	} data;
		1186
		1187	data.errorno = errno;
		1188	data.laststype = PL_laststype;
		1189	data.laststatval = PL_laststatval;
		1190	data.statcache = PL_statcache;
		1191
		1192	RETVAL = newSVpvn ((char *)&data, sizeof data);
		1193	}
		1194	OUTPUT:
		1195	RETVAL
		1196
		1197	void
		1198	_aio_set_state (char *data_)
		1199	PROTOTYPE: $
		1200	CODE:
		1201	{
		1202	struct {
		1203	int errorno;
		1204	int laststype;
		1205	int laststatval;
		1206	Stat_t statcache;
		1207	} data = (void )data_;
		1208
		1209	errno = data->errorno;
		1210	PL_laststype = data->laststype;
		1211	PL_laststatval = data->laststatval;
		1212	PL_statcache = data->statcache;
		1213	}

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Comparing Coro/Coro/State.xs (file contents): Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs. Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.46 by pcg, Wed Nov 5 20:02:46 2003 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC