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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs.
Revision 1.87 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 "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_ANON
13	# ifdef MAP_ANONYMOUS	45	# ifndef MAP_ANONYMOUS
14	# define MAP_ANON MAP_ANONYMOUS	46	# ifdef 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 */
…		…
68	AV *curstack;	121	AV *curstack;
69	AV *mainstack;	122	AV *mainstack;
70	SV **stack_sp;	123	SV **stack_sp;
71	OP *op;	124	OP *op;
72	SV **curpad;	125	SV **curpad;
		126	AV *comppad;
		127	CV *compcv;
73	SV **stack_base;	128	SV **stack_base;
74	SV **stack_max;	129	SV **stack_max;
75	SV **tmps_stack;	130	SV **tmps_stack;
76	I32 tmps_floor;	131	I32 tmps_floor;
77	I32 tmps_ix;	132	I32 tmps_ix;
…		…
86	I32 savestack_ix;	141	I32 savestack_ix;
87	I32 savestack_max;	142	I32 savestack_max;
88	OP **retstack;	143	OP **retstack;
89	I32 retstack_ix;	144	I32 retstack_ix;
90	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
91	COP *curcop;	147	COP *curcop;
92	JMPENV *top_env;	148	JMPENV *top_env;
93		149
		150	/* coro process data */
		151	int prio;
		152
94	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
95	AV *args;	154	AV *args;
		155	int refcnt;
96	};	156	};
97		157
98	typedef struct coro *Coro__State;	158	typedef struct coro *Coro__State;
99	typedef struct coro *Coro__State_or_hashref;	159	typedef struct coro *Coro__State_or_hashref;
100		160
101	static AV main_mainstack; / used to differentiate between $main and others */	161	static AV *
102	static HV *coro_state_stash;	162	coro_clone_padlist (pTHX_ CV *cv)
103	static SV *ucoro_state_sv;
104	static U32 ucoro_state_hash;
105	static HV *padlist_cache;
106
107	/* mostly copied from op.c:cv_clone2 */
108	STATIC AV *
109	clone_padlist (AV *protopadlist)
110	{	163	{
111	AV *av;	164	AV *padlist = CvPADLIST (cv);
112	I32 ix;
113	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
114	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
115	SV **pname = AvARRAY (protopad_name);
116	SV **ppad = AvARRAY (protopad);
117	I32 fname = AvFILLp (protopad_name);
118	I32 fpad = AvFILLp (protopad);
119	AV newpadlist, newpad_name, *newpad;	165	AV newpadlist, newpad;
120	SV **npad;
121
122	newpad_name = newAV ();
123	for (ix = fname; ix >= 0; ix--)
124	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
125
126	newpad = newAV ();
127	av_fill (newpad, AvFILLp (protopad));
128	npad = AvARRAY (newpad);
129		166
130	newpadlist = newAV ();	167	newpadlist = newAV ();
131	AvREAL_off (newpadlist);	168	AvREAL_off (newpadlist);
132	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)));
133	av_store (newpadlist, 1, (SV *) newpad);	178	av_store (newpadlist, 1, (SV *)newpad);
134		179
135	av = newAV (); /* will be @_ */	180	return newpadlist;
136	av_extend (av, 0);	181	}
137	av_store (newpad, 0, (SV *) av);
138	AvFLAGS (av) = AVf_REIFY;
139		182
140	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))
141	{	188	{
142	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	189	I32 i = AvFILLp (padlist);
143	if (namesv && namesv != &PL_sv_undef)	190	while (i >= 0)
144	{	191	{
145	char name = SvPVX (namesv); / XXX */	192	SV **svp = av_fetch (padlist, i--, FALSE);
146	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	193	if (svp)
147	{ /* lexical from outside? */
148	npad[ix] = SvREFCNT_inc (ppad[ix]);
149	}	194	{
150	else
151	{ /* our own lexical */
152	SV *sv;	195	SV *sv;
153	if (*name == '&')	196	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
154	sv = SvREFCNT_inc (ppad[ix]);	197	SvREFCNT_dec (sv);
155	else if (*name == '@')	198
156	sv = (SV *) newAV ();	199	SvREFCNT_dec (*svp);
157	else if (*name == '%')
158	sv = (SV *) newHV ();
159	else
160	sv = NEWSV (0, 0);
161	if (!SvPADBUSY (sv))
162	SvPADMY_on (sv);
163	npad[ix] = sv;
164	}	200	}
165	}	201	}
166	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	202
167	{	203	SvREFCNT_dec ((SV*)padlist);
168	npad[ix] = SvREFCNT_inc (ppad[ix]);
169	}
170	else
171	{
172	SV *sv = NEWSV (0, 0);
173	SvPADTMP_on (sv);
174	npad[ix] = sv;
175	}
176	}	204	}
		205	}
177		206
178	#if 0 /* return -ENOTUNDERSTOOD */	207	static int
179	/* 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;
180		212
181	for (ix = fpad; ix > 0; ix--) {	213	/* casting is fun. */
182	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
183	if (namesv	215	free_padlist (aTHX_ padlist);
184	&& namesv != &PL_sv_undef	216
185	&& !(SvFLAGS(namesv) & SVf_FAKE)	217	SvREFCNT_dec (av);
186	&& *SvPVX(namesv) == '&'	218
187	&& CvCLONE(ppad[ix]))	219	return 0;
188	{	220	}
189	CV kid = cv_clone((CV)ppad[ix]);	221
190	SvREFCNT_dec(ppad[ix]);	222	#define PERL_MAGIC_coro PERL_MAGIC_ext
191	CvCLONE_on(kid);	223
192	SvPADMY_on(kid);	224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
193	npad[ix] = (SV*)kid;	225
194	}	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 ();
195	}	259	}
196	#endif
197		260
198	return newpadlist;
199	}
200
201	#ifdef MAY_FLUSH
202	STATIC void
203	free_padlist (AV *padlist)
204	{
205	/* may be during global destruction */
206	if (SvREFCNT(padlist))
207	{
208	I32 i = AvFILLp(padlist);
209	while (i >= 0)
210	{
211	SV **svp = av_fetch(padlist, i--, FALSE);
212	SV sv = svp ? svp : Nullsv;
213	if (sv)
214	SvREFCNT_dec(sv);
215	}
216
217	SvREFCNT_dec((SV*)padlist);
218	}
219	}
220	#endif
221
222	/* the next two functions merely cache the padlists */
223	STATIC void
224	get_padlist (CV *cv)
225	{
226	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
227
228	if (he && AvFILLp ((AV )he) >= 0)
229	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
230	else
231	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
232	}
233
234	STATIC void
235	put_padlist (CV *cv)
236	{
237	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
238
239	if (SvTYPE (*he) != SVt_PVAV)
240	{
241	SvREFCNT_dec (*he);
242	he = (SV )newAV ();
243	}
244
245	av_push ((AV )he, (SV *)CvPADLIST (cv));	261	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
246	}	262	}
247
248	#ifdef MAY_FLUSH
249	STATIC void
250	flush_padlist_cache ()
251	{
252	HV *hv = padlist_cache;
253	padlist_cache = newHV ();
254
255	if (hv_iterinit (hv))
256	{
257	HE *he;
258	AV *padlist;
259
260	while (!!(he = hv_iternext (hv)))
261	{
262	AV av = (AV )HeVAL(he);
263
264	/* casting is fun. */
265	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
266	free_padlist (padlist);
267	}
268	}
269
270	SvREFCNT_dec (hv);
271	}
272	#endif
273		263
274	#define SB do {	264	#define SB do {
275	#define SE } while (0)	265	#define SE } while (0)
276		266
277	#define LOAD(state) load_state(aTHX_ (state));	267	#define LOAD(state) load_state(aTHX_ (state));
278	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	268	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279		269
280	#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
281		271
282	static void	272	static void
283	load_state(pTHX_ Coro__State c)	273	load_state(pTHX_ Coro__State c)
284	{	274	{
285	PL_dowarn = c->dowarn;	275	PL_dowarn = c->dowarn;
…		…
289	PL_curstack = c->curstack;	279	PL_curstack = c->curstack;
290	PL_mainstack = c->mainstack;	280	PL_mainstack = c->mainstack;
291	PL_stack_sp = c->stack_sp;	281	PL_stack_sp = c->stack_sp;
292	PL_op = c->op;	282	PL_op = c->op;
293	PL_curpad = c->curpad;	283	PL_curpad = c->curpad;
		284	PL_comppad = c->comppad;
		285	PL_compcv = c->compcv;
294	PL_stack_base = c->stack_base;	286	PL_stack_base = c->stack_base;
295	PL_stack_max = c->stack_max;	287	PL_stack_max = c->stack_max;
296	PL_tmps_stack = c->tmps_stack;	288	PL_tmps_stack = c->tmps_stack;
297	PL_tmps_floor = c->tmps_floor;	289	PL_tmps_floor = c->tmps_floor;
298	PL_tmps_ix = c->tmps_ix;	290	PL_tmps_ix = c->tmps_ix;
…		…
304	PL_scopestack_ix = c->scopestack_ix;	296	PL_scopestack_ix = c->scopestack_ix;
305	PL_scopestack_max = c->scopestack_max;	297	PL_scopestack_max = c->scopestack_max;
306	PL_savestack = c->savestack;	298	PL_savestack = c->savestack;
307	PL_savestack_ix = c->savestack_ix;	299	PL_savestack_ix = c->savestack_ix;
308	PL_savestack_max = c->savestack_max;	300	PL_savestack_max = c->savestack_max;
		301	#if PERL_VERSION < 9
309	PL_retstack = c->retstack;	302	PL_retstack = c->retstack;
310	PL_retstack_ix = c->retstack_ix;	303	PL_retstack_ix = c->retstack_ix;
311	PL_retstack_max = c->retstack_max;	304	PL_retstack_max = c->retstack_max;
		305	#endif
		306	PL_curpm = c->curpm;
312	PL_curcop = c->curcop;	307	PL_curcop = c->curcop;
313	PL_top_env = c->top_env;	308	PL_top_env = c->top_env;
314		309
315	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
316	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
325	{	320	{
326	AV padlist = (AV )POPs;	321	AV padlist = (AV )POPs;
327		322
328	if (padlist)	323	if (padlist)
329	{	324	{
330	put_padlist (cv); /* mark this padlist as available */	325	put_padlist (aTHX_ cv); /* mark this padlist as available */
331	CvPADLIST(cv) = padlist;	326	CvPADLIST(cv) = padlist;
332	#ifdef USE_THREADS
333	/CvOWNER(cv) = (struct perl_thread )POPs;*/
334	#endif
335	}	327	}
336		328
337	++CvDEPTH(cv);	329	++CvDEPTH(cv);
338	}	330	}
339		331
…		…
366	if (CxTYPE(cx) == CXt_SUB)	358	if (CxTYPE(cx) == CXt_SUB)
367	{	359	{
368	CV *cv = cx->blk_sub.cv;	360	CV *cv = cx->blk_sub.cv;
369	if (CvDEPTH(cv))	361	if (CvDEPTH(cv))
370	{	362	{
371	#ifdef USE_THREADS
372	/XPUSHs ((SV )CvOWNER(cv));*/
373	/CvOWNER(cv) = 0;/
374	/error must unlock this cv etc.. etc.../
375	#endif
376	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, CvDEPTH(cv)*2);
377		364
378	while (--CvDEPTH(cv))	365	while (--CvDEPTH(cv))
379	{	366	{
380	/* this tells the restore code to increment CvDEPTH */	367	/* this tells the restore code to increment CvDEPTH */
…		…
383	}	370	}
384		371
385	PUSHs ((SV *)CvPADLIST(cv));	372	PUSHs ((SV *)CvPADLIST(cv));
386	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
387		374
388	get_padlist (cv); /* this is a monster */	375	get_padlist (aTHX_ cv);
389	}	376	}
390	}	377	}
		378	#ifdef CXt_FORMAT
391	else if (CxTYPE(cx) == CXt_FORMAT)	379	else if (CxTYPE(cx) == CXt_FORMAT)
392	{	380	{
393	/* I never used formats, so how should I know how these are implemented? */	381	/* I never used formats, so how should I know how these are implemented? */
394	/* my bold guess is as a simple, plain sub... */	382	/* my bold guess is as a simple, plain sub... */
395	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	383	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396	}	384	}
		385	#endif
397	}	386	}
398		387
399	if (top_si->si_type == PERLSI_MAIN)	388	if (top_si->si_type == PERLSI_MAIN)
400	break;	389	break;
401		390
…		…
418	c->curstack = PL_curstack;	407	c->curstack = PL_curstack;
419	c->mainstack = PL_mainstack;	408	c->mainstack = PL_mainstack;
420	c->stack_sp = PL_stack_sp;	409	c->stack_sp = PL_stack_sp;
421	c->op = PL_op;	410	c->op = PL_op;
422	c->curpad = PL_curpad;	411	c->curpad = PL_curpad;
		412	c->comppad = PL_comppad;
		413	c->compcv = PL_compcv;
423	c->stack_base = PL_stack_base;	414	c->stack_base = PL_stack_base;
424	c->stack_max = PL_stack_max;	415	c->stack_max = PL_stack_max;
425	c->tmps_stack = PL_tmps_stack;	416	c->tmps_stack = PL_tmps_stack;
426	c->tmps_floor = PL_tmps_floor;	417	c->tmps_floor = PL_tmps_floor;
427	c->tmps_ix = PL_tmps_ix;	418	c->tmps_ix = PL_tmps_ix;
…		…
433	c->scopestack_ix = PL_scopestack_ix;	424	c->scopestack_ix = PL_scopestack_ix;
434	c->scopestack_max = PL_scopestack_max;	425	c->scopestack_max = PL_scopestack_max;
435	c->savestack = PL_savestack;	426	c->savestack = PL_savestack;
436	c->savestack_ix = PL_savestack_ix;	427	c->savestack_ix = PL_savestack_ix;
437	c->savestack_max = PL_savestack_max;	428	c->savestack_max = PL_savestack_max;
		429	#if PERL_VERSION < 9
438	c->retstack = PL_retstack;	430	c->retstack = PL_retstack;
439	c->retstack_ix = PL_retstack_ix;	431	c->retstack_ix = PL_retstack_ix;
440	c->retstack_max = PL_retstack_max;	432	c->retstack_max = PL_retstack_max;
		433	#endif
		434	c->curpm = PL_curpm;
441	c->curcop = PL_curcop;	435	c->curcop = PL_curcop;
442	c->top_env = PL_top_env;	436	c->top_env = PL_top_env;
443	}	437	}
444		438
445	/*	439	/*
446	* allocate various perl stacks. This is an exact copy	440	* allocate various perl stacks. This is an exact copy
447	* of perl.c:init_stacks, except that it uses less memory	441	* of perl.c:init_stacks, except that it uses less memory
448	* on the assumption that coroutines do not usually need	442	* on the (sometimes correct) assumption that coroutines do
449	* a lot of stackspace.	443	* not usually need a lot of stackspace.
450	*/	444	*/
451	STATIC void	445	static void
452	coro_init_stacks (pTHX)	446	coro_init_stacks (pTHX)
453	{	447	{
		448	LOCK;
		449
454	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455	PL_curstackinfo->si_type = PERLSI_MAIN;	451	PL_curstackinfo->si_type = PERLSI_MAIN;
456	PL_curstack = PL_curstackinfo->si_stack;	452	PL_curstack = PL_curstackinfo->si_stack;
457	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	453	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458		454
…		…
467		463
468	New(54,PL_markstack,16,I32);	464	New(54,PL_markstack,16,I32);
469	PL_markstack_ptr = PL_markstack;	465	PL_markstack_ptr = PL_markstack;
470	PL_markstack_max = PL_markstack + 16;	466	PL_markstack_max = PL_markstack + 16;
471		467
		468	#ifdef SET_MARK_OFFSET
472	SET_MARK_OFFSET;	469	SET_MARK_OFFSET;
		470	#endif
473		471
474	New(54,PL_scopestack,16,I32);	472	New(54,PL_scopestack,16,I32);
475	PL_scopestack_ix = 0;	473	PL_scopestack_ix = 0;
476	PL_scopestack_max = 16;	474	PL_scopestack_max = 16;
477		475
478	New(54,PL_savestack,96,ANY);	476	New(54,PL_savestack,96,ANY);
479	PL_savestack_ix = 0;	477	PL_savestack_ix = 0;
480	PL_savestack_max = 96;	478	PL_savestack_max = 96;
481		479
		480	#if PERL_VERSION < 9
482	New(54,PL_retstack,8,OP*);	481	New(54,PL_retstack,8,OP*);
483	PL_retstack_ix = 0;	482	PL_retstack_ix = 0;
484	PL_retstack_max = 8;	483	PL_retstack_max = 8;
		484	#endif
		485
		486	UNLOCK;
485	}	487	}
486		488
487	/*	489	/*
488	* destroy the stacks, the callchain etc...	490	* destroy the stacks, the callchain etc...
489	* still there is a memleak of 128 bytes...
490	*/	491	*/
491	STATIC void	492	static void
492	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
493	{	494	{
494	if (!IN_DESTRUCT)	495	if (!IN_DESTRUCT)
495	{	496	{
496	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
497	while (PL_scopestack_ix)	498	LEAVE_SCOPE (0);
498	LEAVE;
499		499
500	/* sure it is, but more important: is it correct?? :/ */	500	/* sure it is, but more important: is it correct?? :/ */
501	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
502	FREETMPS;	501	FREETMPS;
		502
		503	/POPSTACK_TO (PL_mainstack);//D//use/
503	}	504	}
504		505
505	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
506	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
507		508
508	while (PL_curstackinfo)	509	while (PL_curstackinfo)
509	{	510	{
510	PERL_SI *p = PL_curstackinfo->si_prev;	511	PERL_SI *p = PL_curstackinfo->si_prev;
511		512
512	{	513	{ /D//remove/
513	dSP;	514	dSP;
514	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
516	}	517	}
517		518
518	if (!IN_DESTRUCT)	519	if (!IN_DESTRUCT)
519	{	520	{
520	dounwind(-1);	521	dounwind (-1);/D//remove/
521	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec (PL_curstackinfo->si_stack);
522	}	523	}
523		524
524	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree (PL_curstackinfo->si_cxstack);
525	Safefree(PL_curstackinfo);	526	Safefree (PL_curstackinfo);
526	PL_curstackinfo = p;	527	PL_curstackinfo = p;
527	}	528	}
528		529
529	Safefree(PL_tmps_stack);	530	Safefree (PL_tmps_stack);
530	Safefree(PL_markstack);	531	Safefree (PL_markstack);
531	Safefree(PL_scopestack);	532	Safefree (PL_scopestack);
532	Safefree(PL_savestack);	533	Safefree (PL_savestack);
		534	#if PERL_VERSION < 9
533	Safefree(PL_retstack);	535	Safefree (PL_retstack);
		536	#endif
534	}	537	}
535		538
536	static void	539	static void
537	allocate_stack (Coro__State ctx, int alloc)	540	allocate_stack (Coro__State ctx, int alloc)
538	{	541	{
…		…
541	New (0, stack, 1, coro_stack);	544	New (0, stack, 1, coro_stack);
542		545
543	stack->refcnt = 1;	546	stack->refcnt = 1;
544	stack->usecnt = 1;	547	stack->usecnt = 1;
545	stack->gencnt = ctx->gencnt = 0;	548	stack->gencnt = ctx->gencnt = 0;
		549
546	if (alloc)	550	if (alloc)
547	{	551	{
548	#ifdef HAVE_MMAP	552	#if HAVE_MMAP
549	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 */
550	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	554	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
551	if (stack->sptr == (void *)-1)	555	if (stack->sptr != (void *)-1)
552	#endif
553	{	556	{
554	/FIXME//D//* reasonable stack size! */	557	# if STACKGUARD
		558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		559	# endif
		560	}
		561	else
		562	#endif
		563	{
555	stack->ssize = -4096 * sizeof (long);	564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
556	New (0, stack->sptr, 4096, long);	565	New (0, stack->sptr, STACKSIZE, long);
557	}	566	}
558	}	567	}
559	else	568	else
560	stack->sptr = 0;	569	stack->sptr = 0;
561		570
…		…
575	{	584	{
576	#ifdef HAVE_MMAP	585	#ifdef HAVE_MMAP
577	if (stack->ssize > 0 && stack->sptr)	586	if (stack->ssize > 0 && stack->sptr)
578	munmap (stack->sptr, stack->ssize);	587	munmap (stack->sptr, stack->ssize);
579	else	588	else
580	#else	589	#endif
581	Safefree (stack->sptr);	590	Safefree (stack->sptr);
582	#endif	591
583	Safefree (stack);	592	Safefree (stack);
584	}	593	}
585	else if (ctx->gencnt == stack->gencnt)	594	else if (ctx->gencnt == stack->gencnt)
586	--stack->usecnt;	595	--stack->usecnt;
587	}	596	}
…		…
591	setup_coro (void *arg)	600	setup_coro (void *arg)
592	{	601	{
593	/*	602	/*
594	* emulate part of the perl startup here.	603	* emulate part of the perl startup here.
595	*/	604	*/
		605	dTHX;
596	dSP;	606	dSP;
597	Coro__State ctx = (Coro__State)arg;	607	Coro__State ctx = (Coro__State)arg;
598	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
599		609
600	coro_init_stacks (aTHX);	610	coro_init_stacks (aTHX);
601	/PL_curcop = 0;/	611	/PL_curcop = 0;/
602	/PL_in_eval = PL_in_eval;/ /* inherit */	612	/PL_in_eval = PL_in_eval;/ /* inherit */
603	SvREFCNT_dec (GvAV (PL_defgv));	613	SvREFCNT_dec (GvAV (PL_defgv));
604	GvAV (PL_defgv) = ctx->args;	614	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605		615
606	SPAGAIN;	616	SPAGAIN;
607		617
608	if (ctx->stack)	618	if (ctx->stack)
609	{	619	{
…		…
620	}	630	}
621	else	631	else
622	{	632	{
623	UNOP myop;	633	UNOP myop;
624		634
625	PL_op = (OP *)&myop;
626
627	Zero(&myop, 1, UNOP);	635	Zero(&myop, 1, UNOP);
628	myop.op_next = Nullop;	636	myop.op_next = Nullop;
629	myop.op_flags = OPf_WANT_VOID;	637	myop.op_flags = OPf_WANT_VOID;
		638
		639	PL_op = (OP *)&myop;
630		640
631	PUSHMARK(SP);	641	PUSHMARK(SP);
632	XPUSHs (sub_init);	642	XPUSHs (sub_init);
633	/*	643	/*
634	* the next line is slightly wrong, as PL_op->op_next	644	* the next line is slightly wrong, as PL_op->op_next
…		…
636	* that doesn't matter, though, since it is only	646	* that doesn't matter, though, since it is only
637	* pp_nextstate and we never return...	647	* pp_nextstate and we never return...
638	* ah yes, and I don't care anyways ;)	648	* ah yes, and I don't care anyways ;)
639	*/	649	*/
640	PUTBACK;	650	PUTBACK;
641	PL_op = pp_entersub();	651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642	SPAGAIN;	652	SPAGAIN;
643		653
644	ENTER; /* necessary e.g. for dounwind */	654	ENTER; /* necessary e.g. for dounwind */
645	}	655	}
646	}	656	}
…		…
649	continue_coro (void *arg)	659	continue_coro (void *arg)
650	{	660	{
651	/*	661	/*
652	* this is a _very_ stripped down perl interpreter ;)	662	* this is a _very_ stripped down perl interpreter ;)
653	*/	663	*/
		664	dTHX;
654	Coro__State ctx = (Coro__State)arg;	665	Coro__State ctx = (Coro__State)arg;
655	JMPENV coro_start_env;
656		666
657	/* same as JMPENV_BOOTSTRAP */
658	Zero(&coro_start_env, 1, JMPENV);
659	coro_start_env.je_ret = -1;
660	coro_start_env.je_mustcatch = TRUE;
661	PL_top_env = &coro_start_env;	667	PL_top_env = &PL_start_env;
662		668
663	ctx->cursp = 0;	669	ctx->cursp = 0;
664	PL_op = PL_op->op_next;	670	PL_op = PL_op->op_next;
665	CALLRUNOPS(aTHX);	671	CALLRUNOPS(aTHX);
666		672
667	abort ();	673	abort ();
668	}	674	}
669		675
670	STATIC void	676	/* never call directly, always through the coro_state_transfer global variable */
		677	static void
671	transfer(pTHX_ struct coro prev, struct coro next, int flags)	678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
672	{	679	{
673	dSTACKLEVEL;	680	dSTACKLEVEL;
674	static struct coro *xnext;
675		681
676	if (prev != next)	682	if (prev != next)
677	{	683	{
678	xnext = next;	684	/* has this coro been created yet? */
679
680	if (next->mainstack)	685	if (next->mainstack)
681	{	686	{
		687	LOCK;
682	SAVE (prev, flags);	688	SAVE (prev, flags);
683	LOAD (next);	689	LOAD (next);
		690	UNLOCK;
684		691
685	/* mark this state as in-use */	692	/* mark this state as in-use */
686	next->mainstack = 0;	693	next->mainstack = 0;
687	next->tmps_ix = -2;	694	next->tmps_ix = -2;
688		695
…		…
707	continue_coro, (void *)next,	714	continue_coro, (void *)next,
708	next->stack->sptr, labs (next->stack->ssize));	715	next->stack->sptr, labs (next->stack->ssize));
709	}	716	}
710		717
711	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		719	prev->cursp = stacklevel;
712	/* don't add any code here */	720	/* don't add any code here */
713	}	721	}
714		722	else
		723	next->cursp = stacklevel;
715	}	724	}
716	else if (next->tmps_ix == -2)	725	else if (next->tmps_ix == -2)
717	croak ("tried to transfer to running coroutine");	726	croak ("tried to transfer to running coroutine");
718	else	727	else
719	{	728	{
		729	LOCK;
720	SAVE (prev, -1); /* first get rid of the old state */	730	SAVE (prev, -1); /* first get rid of the old state */
		731	UNLOCK;
721		732
		733	/* create the coroutine for the first time */
722	if (flags & TRANSFER_SAVE_CCTXT)	734	if (flags & TRANSFER_SAVE_CCTXT)
723	{	735	{
724	if (!prev->stack)	736	if (!prev->stack)
725	allocate_stack (prev, 0);	737	allocate_stack (prev, 0);
726		738
		739	/* the new coroutine starts with start_env again */
		740	PL_top_env = &PL_start_env;
		741
727	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728	{	743	{
729	setup_coro (next);	744	setup_coro (next);
		745	next->cursp = stacklevel;
730		746
731	prev->stack->refcnt++;	747	prev->stack->refcnt++;
732	prev->stack->usecnt++;	748	prev->stack->usecnt++;
733	next->stack = prev->stack;	749	next->stack = prev->stack;
734	next->gencnt = prev->gencnt;	750	next->gencnt = prev->gencnt;
735	}	751	}
736	else	752	else
737	{	753	{
		754	assert (!next->stack);
738	allocate_stack (next, 1);	755	allocate_stack (next, 1);
739	coro_create (&(next->stack->cctx),	756	coro_create (&(next->stack->cctx),
740	setup_coro, (void *)next,	757	setup_coro, (void *)next,
741	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
742	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		760	prev->cursp = stacklevel;
743	/* don't add any code here */	761	/* don't add any code here */
744	}	762	}
745	}	763	}
746	else	764	else
		765	{
747	setup_coro (next);	766	setup_coro (next);
		767	next->cursp = stacklevel;
		768	}
748	}	769	}
749
750	/*
751	* xnext is now either prev or next, depending on wether
752	* we switched the c stack or not. that's why i use a global
753	* variable, that should become thread-specific at one point.
754	*/
755	xnext->cursp = stacklevel;
756	}	770	}
		771
		772	LOCK;
		773	if (coro_mortal)
		774	{
		775	SvREFCNT_dec (coro_mortal);
		776	coro_mortal = 0;
		777	}
		778	UNLOCK;
757	}	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;
		784
		785	#define SV_CORO(sv,func) \
		786	do { \
		787	if (SvROK (sv)) \
		788	sv = SvRV (sv); \
		789	\
		790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \
		791	{ \
		792	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		793	\
		794	if (!he) \
		795	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		796	\
		797	(sv) = SvRV (HeVAL(he)); \
		798	} \
		799	\
		800	/* must also be changed inside Coro::Cont::yield */ \
		801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
		802	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		803	\
		804	} while(0)
		805
		806	static void
		807	coro_state_destroy (struct coro *coro)
		808	{
		809	if (coro->refcnt--)
		810	return;
		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
		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 };
758		853
759	static struct coro *	854	static struct coro *
760	sv_to_coro (SV arg, const char funcname, const char *varname)	855	SvSTATE (SV *coro)
761	{	856	{
762	if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)	857	MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro);
763	{	858	assert (mg->mg_type == PERL_MAGIC_ext);
764	HE he = hv_fetch_ent((HV )SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash);	859	return (struct coro *)mg->mg_ptr;
765
766	if (!he)
767	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769	arg = HeVAL(he);
770	}
771
772	/* must also be changed inside Coro::Cont::yield */
773	if (SvROK(arg) && SvOBJECT(SvRV(arg))
774	&& SvSTASH(SvRV(arg)) == coro_state_stash)
775	return (struct coro ) SvIV((SV)SvRV(arg));
776
777	croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname);
778	/NORETURN/
779	}	860	}
780		861
781	static void	862	static void
782	api_transfer(pTHX_ SV prev, SV next, int flags)	863	api_transfer (pTHX_ SV prev, SV next, int flags)
783	{	864	{
784	transfer(aTHX_	865	SV_CORO (prev, "Coro::transfer");
785	sv_to_coro (prev, "Coro::transfer", "prev"),	866	SV_CORO (next, "Coro::transfer");
786	sv_to_coro (next, "Coro::transfer", "next"),	867
787	flags);	868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788	}	869	}
789		870
790	/ Coro ******************************************************************/	871	/ Coro ******************************************************************/
791		872
792	#define PRIO_MAX 3	873	#define PRIO_MAX 3
…		…
796	#define PRIO_IDLE -3	877	#define PRIO_IDLE -3
797	#define PRIO_MIN -4	878	#define PRIO_MIN -4
798		879
799	/* for Coro.pm */	880	/* for Coro.pm */
800	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
801	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
802	static int coro_nready;	883	static int coro_nready;
803		884
804	static void	885	static void
805	coro_enq (SV *sv)	886	coro_enq (pTHX_ SV *sv)
806	{	887	{
807	if (SvROK (sv))	888	int prio;
808	{	889
809	SV *hv = SvRV (sv);
810	if (SvTYPE (hv) == SVt_PVHV)	890	if (SvTYPE (sv) != SVt_PVHV)
811	{
812	SV *xprio = hv_fetch ((HV )hv, "prio", 4, 0);
813	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814
815	prio = prio > PRIO_MAX ? PRIO_MAX
816	: prio < PRIO_MIN ? PRIO_MIN
817	: prio;
818
819	av_push (coro_ready [prio - PRIO_MIN], sv);
820	coro_nready++;
821
822	return;
823	}
824	}
825
826	croak ("Coro::ready tried to enqueue something that is not a coroutine");	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++;
827	}	901	}
828		902
829	static SV *	903	static SV *
830	coro_deq (int min_prio)	904	coro_deq (pTHX_ int min_prio)
831	{	905	{
832	int prio = PRIO_MAX - PRIO_MIN;	906	int prio = PRIO_MAX - PRIO_MIN;
833		907
834	min_prio -= PRIO_MIN;	908	min_prio -= PRIO_MIN;
835	if (min_prio < 0)	909	if (min_prio < 0)
836	min_prio = 0;	910	min_prio = 0;
837		911
838	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	912	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
839	if (av_len (coro_ready[prio]) >= 0)	913	if (AvFILLp (coro_ready [prio]) >= 0)
840	{	914	{
841	coro_nready--;	915	coro_nready--;
842	return av_shift (coro_ready[prio]);	916	return av_shift (coro_ready [prio]);
843	}	917	}
844		918
845	return 0;	919	return 0;
846	}	920	}
847		921
848	static void	922	static void
849	api_ready (SV *coro)	923	api_ready (SV *coro)
850	{	924	{
		925	dTHX;
		926
		927	if (SvROK (coro))
		928	coro = SvRV (coro);
		929
		930	LOCK;
851	coro_enq (SvREFCNT_inc (coro));	931	coro_enq (aTHX_ SvREFCNT_inc (coro));
		932	UNLOCK;
852	}	933	}
853		934
854	static void	935	static void
855	api_schedule (int cede)	936	api_schedule (void)
856	{	937	{
		938	dTHX;
		939
857	SV prev, next;	940	SV prev, next;
858		941
		942	LOCK;
		943
859	prev = GvSV (coro_current);	944	prev = SvRV (GvSV (coro_current));
860
861	if (cede)
862	coro_enq (SvREFCNT_inc (prev));
863
864	next = coro_deq (PRIO_MIN);	945	next = coro_deq (aTHX_ PRIO_MIN);
865		946
866	if (!next)	947	if (!next)
867	next = SvREFCNT_inc (GvSV (coro_idle));	948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868		949
869	GvSV (coro_current) = SvREFCNT_inc (next);	950	/* free this only after the transfer */
870	transfer (aTHX_	951	coro_mortal = prev;
871	sv_to_coro (prev, "Coro::schedule", "current coroutine"),	952	SV_CORO (prev, "Coro::schedule");
872	sv_to_coro (next, "Coro::schedule", "next coroutine"),	953
		954	SvRV (GvSV (coro_current)) = next;
		955
		956	SV_CORO (next, "Coro::schedule");
		957
		958	UNLOCK;
		959
		960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
874	SvREFCNT_dec (next);	962	}
875	SvREFCNT_dec (prev);	963
		964	static void
		965	api_cede (void)
		966	{
		967	dTHX;
		968
		969	LOCK;
		970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
		972
		973	api_schedule ();
876	}	974	}
877		975
878	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
879		977
880	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
881		979
882	BOOT:	980	BOOT:
883	{ /* {} 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
884	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887		990
888	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892		995
893	if (!padlist_cache)
894	padlist_cache = newHV ();
895
896	main_mainstack = PL_mainstack;	996	main_mainstack = PL_mainstack;
897		997
898	coroapi.ver = CORO_API_VERSION;	998	coroapi.ver = CORO_API_VERSION;
899	coroapi.transfer = api_transfer;	999	coroapi.transfer = api_transfer;
900	}
901		1000
902	Coro::State	1001	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
903	_newprocess(args)	1002	}
904	SV * args	1003
905	PROTOTYPE: $	1004	SV *
		1005	new (char *klass, ...)
906	CODE:	1006	CODE:
907	Coro__State coro;	1007	{
		1008	struct coro *coro;
		1009	HV *hv;
		1010	int i;
908		1011
909	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
910	croak ("Coro::State::_newprocess expects an arrayref");
911
912	New (0, coro, 1, struct coro);	1012	Newz (0, coro, 1, struct coro);
		1013	coro->args = newAV ();
913		1014
914	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1015	for (i = 1; i < items; i++)
		1016	av_push (coro->args, newSVsv (ST (i)));
		1017
915	coro->mainstack = 0; /* actual work is done inside transfer */	1018	/coro->mainstack = 0; //actual work is done inside transfer /
916	coro->stack = 0;	1019	/coro->stack = 0;/
917		1020
918	RETVAL = coro;	1021	hv = newHV ();
		1022	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
		1023	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
		1024	}
919	OUTPUT:	1025	OUTPUT:
920	RETVAL	1026	RETVAL
921		1027
922	void	1028	void
923	transfer(prev, next, flags)	1029	transfer(prev, next, flags)
924	Coro::State_or_hashref prev	1030	SV *prev
925	Coro::State_or_hashref next	1031	SV *next
926	int flags	1032	int flags
927	PROTOTYPE: @
928	CODE:	1033	CODE:
929	PUTBACK;	1034	PUTBACK;
930	transfer (aTHX_ prev, next, flags);	1035	SV_CORO (next, "Coro::transfer");
		1036	SV_CORO (prev, "Coro::transfer");
		1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931	SPAGAIN;	1038	SPAGAIN;
932		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
933	void	1060	void
934	DESTROY(coro)	1061	_clone_state_from (SV dst, SV src)
935	Coro::State coro	1062	CODE:
936	CODE:	1063	{
		1064	struct coro *coro_src = SvSTATE (src);
937		1065
938	if (coro->mainstack && coro->mainstack != main_mainstack)	1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
939	{
940	struct coro temp;
941		1067
942	PUTBACK;	1068	++coro_src->refcnt;
943	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;
944	LOAD(aTHX_ coro);	1070	}
945	SPAGAIN;
946
947	destroy_stacks (aTHX);
948
949	LOAD((&temp)); /* this will get rid of defsv etc.. */
950	SPAGAIN;
951
952	coro->mainstack = 0;
953	}
954
955	deallocate_stack (coro);
956
957	Safefree (coro);
958		1071
959	void	1072	void
960	flush()
961	CODE:
962	#ifdef MAY_FLUSH
963	flush_padlist_cache ();
964	#endif
965
966	void
967	_exit(code)	1073	_exit (code)
968	int code	1074	int code
969	PROTOTYPE: $	1075	PROTOTYPE: $
970	CODE:	1076	CODE:
971	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
972	_exit (code);	1077	_exit (code);
973	#else
974	signal (SIGTERM, SIG_DFL);
975	raise (SIGTERM);
976	exit (code);
977	#endif
978		1078
979	MODULE = Coro::State PACKAGE = Coro::Cont	1079	MODULE = Coro::State PACKAGE = Coro::Cont
980		1080
981	# this is slightly dirty (should expose a c-level api)
982
983	void	1081	void
984	yield(...)	1082	yield (...)
985	PROTOTYPE: @	1083	PROTOTYPE: @
986	CODE:	1084	CODE:
987	static SV *returnstk;	1085	SV *yieldstack;
988	SV *sv;	1086	SV *sv;
989	AV *defav = GvAV (PL_defgv);	1087	AV *defav = GvAV (PL_defgv);
990	struct coro prev, next;	1088	struct coro prev, next;
991		1089
992	if (!returnstk)	1090	yieldstack = *hv_fetch (
993	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1091	(HV *)SvRV (GvSV (coro_current)),
		1092	"yieldstack", sizeof ("yieldstack") - 1,
		1093	0
		1094	);
994		1095
995	/* set up @_ -- ugly */	1096	/* set up @_ -- ugly */
996	av_clear (defav);	1097	av_clear (defav);
997	av_fill (defav, items - 1);	1098	av_fill (defav, items - 1);
998	while (items--)	1099	while (items--)
999	av_store (defav, items, SvREFCNT_inc (ST(items)));	1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1000		1101
1001	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1002	sv = av_pop ((AV *)SvRV (returnstk));	1102	sv = av_pop ((AV *)SvRV (yieldstack));
1003	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)));
1004	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)));
1005	SvREFCNT_dec (sv);	1105	SvREFCNT_dec (sv);
1006		1106
1007	transfer(aTHX_ prev, next, 0);	1107	coro_state_transfer (aTHX_ prev, next, 0);
1008		1108
1009	MODULE = Coro::State PACKAGE = Coro	1109	MODULE = Coro::State PACKAGE = Coro
1010
1011	# this is slightly dirty (should expose a c-level api)
1012		1110
1013	BOOT:	1111	BOOT:
1014	{	1112	{
1015	int i;	1113	int i;
1016	HV *stash = gv_stashpv ("Coro", TRUE);	1114	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1030		1128
1031	{	1129	{
1032	SV *sv = perl_get_sv("Coro::API", 1);	1130	SV *sv = perl_get_sv("Coro::API", 1);
1033		1131
1034	coroapi.schedule = api_schedule;	1132	coroapi.schedule = api_schedule;
		1133	coroapi.cede = api_cede;
1035	coroapi.ready = api_ready;	1134	coroapi.ready = api_ready;
1036	coroapi.nready = &coro_nready;	1135	coroapi.nready = &coro_nready;
1037	coroapi.current = coro_current;	1136	coroapi.current = coro_current;
1038		1137
1039	GCoroAPI = &coroapi;	1138	GCoroAPI = &coroapi;
1040	sv_setiv(sv, (IV)&coroapi);	1139	sv_setiv (sv, (IV)&coroapi);
1041	SvREADONLY_on(sv);	1140	SvREADONLY_on (sv);
1042	}	1141	}
1043	}	1142	}
1044		1143
		1144	#if !PERL_MICRO
		1145
1045	void	1146	void
1046	ready(self)	1147	ready (self)
1047	SV * self	1148	SV * self
		1149	PROTOTYPE: $
1048	CODE:	1150	CODE:
1049	api_ready (self);	1151	api_ready (self);
1050		1152
		1153	#endif
		1154
1051	int	1155	int
1052	nready(...)	1156	nready (...)
1053	PROTOTYPE:	1157	PROTOTYPE:
1054	CODE:	1158	CODE:
1055	RETVAL = coro_nready;	1159	RETVAL = coro_nready;
1056	OUTPUT:	1160	OUTPUT:
1057	RETVAL	1161	RETVAL
1058		1162
1059	void	1163	void
1060	schedule(...)	1164	schedule (...)
1061	PROTOTYPE:	1165	PROTOTYPE:
1062	ALIAS:
1063	cede = 1
1064	CODE:	1166	CODE:
1065	api_schedule (ix);	1167	api_schedule ();
1066		1168
		1169	void
		1170	cede (...)
		1171	PROTOTYPE:
		1172	CODE:
		1173	api_cede ();
		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 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs. Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.34 by root, Fri Sep 14 15:40:56 2001 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC