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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.41 by root, Tue Nov 27 02:51:03 2001 UTC vs.
Revision 1.87 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_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 */
…		…
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	static SV coro_mortal; / will be freed after next transfer */
107
108	/* mostly copied from op.c:cv_clone2 */
109	STATIC AV *
110	clone_padlist (AV *protopadlist)
111	{	163	{
112	AV *av;	164	AV *padlist = CvPADLIST (cv);
113	I32 ix;
114	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
115	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
116	SV **pname = AvARRAY (protopad_name);
117	SV **ppad = AvARRAY (protopad);
118	I32 fname = AvFILLp (protopad_name);
119	I32 fpad = AvFILLp (protopad);
120	AV newpadlist, newpad_name, *newpad;	165	AV newpadlist, newpad;
121	SV **npad;
122
123	newpad_name = newAV ();
124	for (ix = fname; ix >= 0; ix--)
125	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
126
127	newpad = newAV ();
128	av_fill (newpad, AvFILLp (protopad));
129	npad = AvARRAY (newpad);
130		166
131	newpadlist = newAV ();	167	newpadlist = newAV ();
132	AvREAL_off (newpadlist);	168	AvREAL_off (newpadlist);
133	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)));
134	av_store (newpadlist, 1, (SV *) newpad);	178	av_store (newpadlist, 1, (SV *)newpad);
135		179
136	av = newAV (); /* will be @_ */	180	return newpadlist;
137	av_extend (av, 0);	181	}
138	av_store (newpad, 0, (SV *) av);
139	AvFLAGS (av) = AVf_REIFY;
140		182
141	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))
142	{	188	{
143	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	189	I32 i = AvFILLp (padlist);
144	if (namesv && namesv != &PL_sv_undef)	190	while (i >= 0)
145	{	191	{
146	char name = SvPVX (namesv); / XXX */	192	SV **svp = av_fetch (padlist, i--, FALSE);
147	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	193	if (svp)
148	{ /* lexical from outside? */
149	npad[ix] = SvREFCNT_inc (ppad[ix]);
150	}	194	{
151	else
152	{ /* our own lexical */
153	SV *sv;	195	SV *sv;
154	if (*name == '&')	196	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
155	sv = SvREFCNT_inc (ppad[ix]);	197	SvREFCNT_dec (sv);
156	else if (*name == '@')	198
157	sv = (SV *) newAV ();	199	SvREFCNT_dec (*svp);
158	else if (*name == '%')
159	sv = (SV *) newHV ();
160	else
161	sv = NEWSV (0, 0);
162	if (!SvPADBUSY (sv))
163	SvPADMY_on (sv);
164	npad[ix] = sv;
165	}	200	}
166	}	201	}
167	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	202
168	{	203	SvREFCNT_dec ((SV*)padlist);
169	npad[ix] = SvREFCNT_inc (ppad[ix]);
170	}
171	else
172	{
173	SV *sv = NEWSV (0, 0);
174	SvPADTMP_on (sv);
175	npad[ix] = sv;
176	}
177	}	204	}
		205	}
178		206
179	#if 0 /* return -ENOTUNDERSTOOD */	207	static int
180	/* 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;
181		212
182	for (ix = fpad; ix > 0; ix--) {	213	/* casting is fun. */
183	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
184	if (namesv	215	free_padlist (aTHX_ padlist);
185	&& namesv != &PL_sv_undef	216
186	&& !(SvFLAGS(namesv) & SVf_FAKE)	217	SvREFCNT_dec (av);
187	&& *SvPVX(namesv) == '&'	218
188	&& CvCLONE(ppad[ix]))	219	return 0;
189	{	220	}
190	CV kid = cv_clone((CV)ppad[ix]);	221
191	SvREFCNT_dec(ppad[ix]);	222	#define PERL_MAGIC_coro PERL_MAGIC_ext
192	CvCLONE_on(kid);	223
193	SvPADMY_on(kid);	224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
194	npad[ix] = (SV*)kid;	225
195	}	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 ();
196	}	259	}
197	#endif
198		260
199	return newpadlist;
200	}
201
202	#ifdef MAY_FLUSH
203	STATIC void
204	free_padlist (AV *padlist)
205	{
206	/* may be during global destruction */
207	if (SvREFCNT(padlist))
208	{
209	I32 i = AvFILLp(padlist);
210	while (i >= 0)
211	{
212	SV **svp = av_fetch(padlist, i--, FALSE);
213	SV sv = svp ? svp : Nullsv;
214	if (sv)
215	SvREFCNT_dec(sv);
216	}
217
218	SvREFCNT_dec((SV*)padlist);
219	}
220	}
221	#endif
222
223	/* the next two functions merely cache the padlists */
224	STATIC void
225	get_padlist (CV *cv)
226	{
227	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
228
229	if (he && AvFILLp ((AV )he) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
231	else
232	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
233	}
234
235	STATIC void
236	put_padlist (CV *cv)
237	{
238	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
239
240	if (SvTYPE (*he) != SVt_PVAV)
241	{
242	SvREFCNT_dec (*he);
243	he = (SV )newAV ();
244	}
245
246	av_push ((AV )he, (SV *)CvPADLIST (cv));	261	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
247	}	262	}
248
249	#ifdef MAY_FLUSH
250	STATIC void
251	flush_padlist_cache ()
252	{
253	HV *hv = padlist_cache;
254	padlist_cache = newHV ();
255
256	if (hv_iterinit (hv))
257	{
258	HE *he;
259	AV *padlist;
260
261	while (!!(he = hv_iternext (hv)))
262	{
263	AV av = (AV )HeVAL(he);
264
265	/* casting is fun. */
266	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
267	free_padlist (padlist);
268	}
269	}
270
271	SvREFCNT_dec (hv);
272	}
273	#endif
274		263
275	#define SB do {	264	#define SB do {
276	#define SE } while (0)	265	#define SE } while (0)
277		266
278	#define LOAD(state) load_state(aTHX_ (state));	267	#define LOAD(state) load_state(aTHX_ (state));
279	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	268	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
280		269
281	#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
282		271
283	static void	272	static void
284	load_state(pTHX_ Coro__State c)	273	load_state(pTHX_ Coro__State c)
285	{	274	{
286	PL_dowarn = c->dowarn;	275	PL_dowarn = c->dowarn;
…		…
290	PL_curstack = c->curstack;	279	PL_curstack = c->curstack;
291	PL_mainstack = c->mainstack;	280	PL_mainstack = c->mainstack;
292	PL_stack_sp = c->stack_sp;	281	PL_stack_sp = c->stack_sp;
293	PL_op = c->op;	282	PL_op = c->op;
294	PL_curpad = c->curpad;	283	PL_curpad = c->curpad;
		284	PL_comppad = c->comppad;
		285	PL_compcv = c->compcv;
295	PL_stack_base = c->stack_base;	286	PL_stack_base = c->stack_base;
296	PL_stack_max = c->stack_max;	287	PL_stack_max = c->stack_max;
297	PL_tmps_stack = c->tmps_stack;	288	PL_tmps_stack = c->tmps_stack;
298	PL_tmps_floor = c->tmps_floor;	289	PL_tmps_floor = c->tmps_floor;
299	PL_tmps_ix = c->tmps_ix;	290	PL_tmps_ix = c->tmps_ix;
…		…
305	PL_scopestack_ix = c->scopestack_ix;	296	PL_scopestack_ix = c->scopestack_ix;
306	PL_scopestack_max = c->scopestack_max;	297	PL_scopestack_max = c->scopestack_max;
307	PL_savestack = c->savestack;	298	PL_savestack = c->savestack;
308	PL_savestack_ix = c->savestack_ix;	299	PL_savestack_ix = c->savestack_ix;
309	PL_savestack_max = c->savestack_max;	300	PL_savestack_max = c->savestack_max;
		301	#if PERL_VERSION < 9
310	PL_retstack = c->retstack;	302	PL_retstack = c->retstack;
311	PL_retstack_ix = c->retstack_ix;	303	PL_retstack_ix = c->retstack_ix;
312	PL_retstack_max = c->retstack_max;	304	PL_retstack_max = c->retstack_max;
		305	#endif
		306	PL_curpm = c->curpm;
313	PL_curcop = c->curcop;	307	PL_curcop = c->curcop;
314	PL_top_env = c->top_env;	308	PL_top_env = c->top_env;
315		309
316	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
317	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
326	{	320	{
327	AV padlist = (AV )POPs;	321	AV padlist = (AV )POPs;
328		322
329	if (padlist)	323	if (padlist)
330	{	324	{
331	put_padlist (cv); /* mark this padlist as available */	325	put_padlist (aTHX_ cv); /* mark this padlist as available */
332	CvPADLIST(cv) = padlist;	326	CvPADLIST(cv) = padlist;
333	#ifdef USE_THREADS
334	/CvOWNER(cv) = (struct perl_thread )POPs;*/
335	#endif
336	}	327	}
337		328
338	++CvDEPTH(cv);	329	++CvDEPTH(cv);
339	}	330	}
340		331
…		…
367	if (CxTYPE(cx) == CXt_SUB)	358	if (CxTYPE(cx) == CXt_SUB)
368	{	359	{
369	CV *cv = cx->blk_sub.cv;	360	CV *cv = cx->blk_sub.cv;
370	if (CvDEPTH(cv))	361	if (CvDEPTH(cv))
371	{	362	{
372	#ifdef USE_THREADS
373	/XPUSHs ((SV )CvOWNER(cv));*/
374	/CvOWNER(cv) = 0;/
375	/error must unlock this cv etc.. etc.../
376	#endif
377	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, CvDEPTH(cv)*2);
378		364
379	while (--CvDEPTH(cv))	365	while (--CvDEPTH(cv))
380	{	366	{
381	/* this tells the restore code to increment CvDEPTH */	367	/* this tells the restore code to increment CvDEPTH */
…		…
384	}	370	}
385		371
386	PUSHs ((SV *)CvPADLIST(cv));	372	PUSHs ((SV *)CvPADLIST(cv));
387	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
388		374
389	get_padlist (cv); /* this is a monster */	375	get_padlist (aTHX_ cv);
390	}	376	}
391	}	377	}
		378	#ifdef CXt_FORMAT
392	else if (CxTYPE(cx) == CXt_FORMAT)	379	else if (CxTYPE(cx) == CXt_FORMAT)
393	{	380	{
394	/* 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? */
395	/* my bold guess is as a simple, plain sub... */	382	/* my bold guess is as a simple, plain sub... */
396	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");
397	}	384	}
		385	#endif
398	}	386	}
399		387
400	if (top_si->si_type == PERLSI_MAIN)	388	if (top_si->si_type == PERLSI_MAIN)
401	break;	389	break;
402		390
…		…
419	c->curstack = PL_curstack;	407	c->curstack = PL_curstack;
420	c->mainstack = PL_mainstack;	408	c->mainstack = PL_mainstack;
421	c->stack_sp = PL_stack_sp;	409	c->stack_sp = PL_stack_sp;
422	c->op = PL_op;	410	c->op = PL_op;
423	c->curpad = PL_curpad;	411	c->curpad = PL_curpad;
		412	c->comppad = PL_comppad;
		413	c->compcv = PL_compcv;
424	c->stack_base = PL_stack_base;	414	c->stack_base = PL_stack_base;
425	c->stack_max = PL_stack_max;	415	c->stack_max = PL_stack_max;
426	c->tmps_stack = PL_tmps_stack;	416	c->tmps_stack = PL_tmps_stack;
427	c->tmps_floor = PL_tmps_floor;	417	c->tmps_floor = PL_tmps_floor;
428	c->tmps_ix = PL_tmps_ix;	418	c->tmps_ix = PL_tmps_ix;
…		…
434	c->scopestack_ix = PL_scopestack_ix;	424	c->scopestack_ix = PL_scopestack_ix;
435	c->scopestack_max = PL_scopestack_max;	425	c->scopestack_max = PL_scopestack_max;
436	c->savestack = PL_savestack;	426	c->savestack = PL_savestack;
437	c->savestack_ix = PL_savestack_ix;	427	c->savestack_ix = PL_savestack_ix;
438	c->savestack_max = PL_savestack_max;	428	c->savestack_max = PL_savestack_max;
		429	#if PERL_VERSION < 9
439	c->retstack = PL_retstack;	430	c->retstack = PL_retstack;
440	c->retstack_ix = PL_retstack_ix;	431	c->retstack_ix = PL_retstack_ix;
441	c->retstack_max = PL_retstack_max;	432	c->retstack_max = PL_retstack_max;
		433	#endif
		434	c->curpm = PL_curpm;
442	c->curcop = PL_curcop;	435	c->curcop = PL_curcop;
443	c->top_env = PL_top_env;	436	c->top_env = PL_top_env;
444	}	437	}
445		438
446	/*	439	/*
447	* allocate various perl stacks. This is an exact copy	440	* allocate various perl stacks. This is an exact copy
448	* of perl.c:init_stacks, except that it uses less memory	441	* of perl.c:init_stacks, except that it uses less memory
449	* on the assumption that coroutines do not usually need	442	* on the (sometimes correct) assumption that coroutines do
450	* a lot of stackspace.	443	* not usually need a lot of stackspace.
451	*/	444	*/
452	STATIC void	445	static void
453	coro_init_stacks (pTHX)	446	coro_init_stacks (pTHX)
454	{	447	{
		448	LOCK;
		449
455	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
456	PL_curstackinfo->si_type = PERLSI_MAIN;	451	PL_curstackinfo->si_type = PERLSI_MAIN;
457	PL_curstack = PL_curstackinfo->si_stack;	452	PL_curstack = PL_curstackinfo->si_stack;
458	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	453	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
459		454
…		…
468		463
469	New(54,PL_markstack,16,I32);	464	New(54,PL_markstack,16,I32);
470	PL_markstack_ptr = PL_markstack;	465	PL_markstack_ptr = PL_markstack;
471	PL_markstack_max = PL_markstack + 16;	466	PL_markstack_max = PL_markstack + 16;
472		467
		468	#ifdef SET_MARK_OFFSET
473	SET_MARK_OFFSET;	469	SET_MARK_OFFSET;
		470	#endif
474		471
475	New(54,PL_scopestack,16,I32);	472	New(54,PL_scopestack,16,I32);
476	PL_scopestack_ix = 0;	473	PL_scopestack_ix = 0;
477	PL_scopestack_max = 16;	474	PL_scopestack_max = 16;
478		475
479	New(54,PL_savestack,96,ANY);	476	New(54,PL_savestack,96,ANY);
480	PL_savestack_ix = 0;	477	PL_savestack_ix = 0;
481	PL_savestack_max = 96;	478	PL_savestack_max = 96;
482		479
		480	#if PERL_VERSION < 9
483	New(54,PL_retstack,8,OP*);	481	New(54,PL_retstack,8,OP*);
484	PL_retstack_ix = 0;	482	PL_retstack_ix = 0;
485	PL_retstack_max = 8;	483	PL_retstack_max = 8;
		484	#endif
		485
		486	UNLOCK;
486	}	487	}
487		488
488	/*	489	/*
489	* destroy the stacks, the callchain etc...	490	* destroy the stacks, the callchain etc...
490	* still there is a memleak of 128 bytes...
491	*/	491	*/
492	STATIC void	492	static void
493	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
494	{	494	{
495	if (!IN_DESTRUCT)	495	if (!IN_DESTRUCT)
496	{	496	{
497	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
498	while (PL_scopestack_ix)	498	LEAVE_SCOPE (0);
499	LEAVE;
500		499
501	/* sure it is, but more important: is it correct?? :/ */	500	/* sure it is, but more important: is it correct?? :/ */
502	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
503	FREETMPS;	501	FREETMPS;
		502
		503	/POPSTACK_TO (PL_mainstack);//D//use/
504	}	504	}
505		505
506	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
507	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
508		508
509	while (PL_curstackinfo)	509	while (PL_curstackinfo)
510	{	510	{
511	PERL_SI *p = PL_curstackinfo->si_prev;	511	PERL_SI *p = PL_curstackinfo->si_prev;
512		512
513	{	513	{ /D//remove/
514	dSP;	514	dSP;
515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
516	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
517	}	517	}
518		518
519	if (!IN_DESTRUCT)	519	if (!IN_DESTRUCT)
520	{	520	{
521	dounwind(-1);	521	dounwind (-1);/D//remove/
522	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec (PL_curstackinfo->si_stack);
523	}	523	}
524		524
525	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree (PL_curstackinfo->si_cxstack);
526	Safefree(PL_curstackinfo);	526	Safefree (PL_curstackinfo);
527	PL_curstackinfo = p;	527	PL_curstackinfo = p;
528	}	528	}
529		529
530	Safefree(PL_tmps_stack);	530	Safefree (PL_tmps_stack);
531	Safefree(PL_markstack);	531	Safefree (PL_markstack);
532	Safefree(PL_scopestack);	532	Safefree (PL_scopestack);
533	Safefree(PL_savestack);	533	Safefree (PL_savestack);
		534	#if PERL_VERSION < 9
534	Safefree(PL_retstack);	535	Safefree (PL_retstack);
		536	#endif
535	}	537	}
536		538
537	static void	539	static void
538	allocate_stack (Coro__State ctx, int alloc)	540	allocate_stack (Coro__State ctx, int alloc)
539	{	541	{
…		…
542	New (0, stack, 1, coro_stack);	544	New (0, stack, 1, coro_stack);
543		545
544	stack->refcnt = 1;	546	stack->refcnt = 1;
545	stack->usecnt = 1;	547	stack->usecnt = 1;
546	stack->gencnt = ctx->gencnt = 0;	548	stack->gencnt = ctx->gencnt = 0;
		549
547	if (alloc)	550	if (alloc)
548	{	551	{
549	#if HAVE_MMAP	552	#if HAVE_MMAP
550	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 */
551	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);
552	if (stack->sptr == (void *)-1)	555	if (stack->sptr != (void *)-1)
553	#endif
554	{	556	{
555	/FIXME//D//* reasonable stack size! */	557	# if STACKGUARD
		558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		559	# endif
		560	}
		561	else
		562	#endif
		563	{
556	stack->ssize = -4096 * sizeof (long);	564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
557	New (0, stack->sptr, 4096, long);	565	New (0, stack->sptr, STACKSIZE, long);
558	}	566	}
559	}	567	}
560	else	568	else
561	stack->sptr = 0;	569	stack->sptr = 0;
562		570
…		…
576	{	584	{
577	#ifdef HAVE_MMAP	585	#ifdef HAVE_MMAP
578	if (stack->ssize > 0 && stack->sptr)	586	if (stack->ssize > 0 && stack->sptr)
579	munmap (stack->sptr, stack->ssize);	587	munmap (stack->sptr, stack->ssize);
580	else	588	else
581	#else	589	#endif
582	Safefree (stack->sptr);	590	Safefree (stack->sptr);
583	#endif	591
584	Safefree (stack);	592	Safefree (stack);
585	}	593	}
586	else if (ctx->gencnt == stack->gencnt)	594	else if (ctx->gencnt == stack->gencnt)
587	--stack->usecnt;	595	--stack->usecnt;
588	}	596	}
…		…
592	setup_coro (void *arg)	600	setup_coro (void *arg)
593	{	601	{
594	/*	602	/*
595	* emulate part of the perl startup here.	603	* emulate part of the perl startup here.
596	*/	604	*/
		605	dTHX;
597	dSP;	606	dSP;
598	Coro__State ctx = (Coro__State)arg;	607	Coro__State ctx = (Coro__State)arg;
599	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
600		609
601	coro_init_stacks (aTHX);	610	coro_init_stacks (aTHX);
602	/PL_curcop = 0;/	611	/PL_curcop = 0;/
603	/PL_in_eval = PL_in_eval;/ /* inherit */	612	/PL_in_eval = PL_in_eval;/ /* inherit */
604	SvREFCNT_dec (GvAV (PL_defgv));	613	SvREFCNT_dec (GvAV (PL_defgv));
605	GvAV (PL_defgv) = ctx->args;	614	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
606		615
607	SPAGAIN;	616	SPAGAIN;
608		617
609	if (ctx->stack)	618	if (ctx->stack)
610	{	619	{
…		…
621	}	630	}
622	else	631	else
623	{	632	{
624	UNOP myop;	633	UNOP myop;
625		634
626	PL_op = (OP *)&myop;
627
628	Zero(&myop, 1, UNOP);	635	Zero(&myop, 1, UNOP);
629	myop.op_next = Nullop;	636	myop.op_next = Nullop;
630	myop.op_flags = OPf_WANT_VOID;	637	myop.op_flags = OPf_WANT_VOID;
		638
		639	PL_op = (OP *)&myop;
631		640
632	PUSHMARK(SP);	641	PUSHMARK(SP);
633	XPUSHs (sub_init);	642	XPUSHs (sub_init);
634	/*	643	/*
635	* the next line is slightly wrong, as PL_op->op_next	644	* the next line is slightly wrong, as PL_op->op_next
…		…
637	* that doesn't matter, though, since it is only	646	* that doesn't matter, though, since it is only
638	* pp_nextstate and we never return...	647	* pp_nextstate and we never return...
639	* ah yes, and I don't care anyways ;)	648	* ah yes, and I don't care anyways ;)
640	*/	649	*/
641	PUTBACK;	650	PUTBACK;
642	PL_op = pp_entersub();	651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
643	SPAGAIN;	652	SPAGAIN;
644		653
645	ENTER; /* necessary e.g. for dounwind */	654	ENTER; /* necessary e.g. for dounwind */
646	}	655	}
647	}	656	}
…		…
650	continue_coro (void *arg)	659	continue_coro (void *arg)
651	{	660	{
652	/*	661	/*
653	* this is a _very_ stripped down perl interpreter ;)	662	* this is a _very_ stripped down perl interpreter ;)
654	*/	663	*/
		664	dTHX;
655	Coro__State ctx = (Coro__State)arg;	665	Coro__State ctx = (Coro__State)arg;
656	JMPENV coro_start_env;
657		666
658	/* same as JMPENV_BOOTSTRAP */
659	Zero(&coro_start_env, 1, JMPENV);
660	coro_start_env.je_ret = -1;
661	coro_start_env.je_mustcatch = TRUE;
662	PL_top_env = &coro_start_env;	667	PL_top_env = &PL_start_env;
663		668
664	ctx->cursp = 0;	669	ctx->cursp = 0;
665	PL_op = PL_op->op_next;	670	PL_op = PL_op->op_next;
666	CALLRUNOPS(aTHX);	671	CALLRUNOPS(aTHX);
667		672
668	abort ();	673	abort ();
669	}	674	}
670		675
671	STATIC void	676	/* never call directly, always through the coro_state_transfer global variable */
		677	static void
672	transfer(pTHX_ struct coro prev, struct coro next, int flags)	678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
673	{	679	{
674	dSTACKLEVEL;	680	dSTACKLEVEL;
675	static struct coro *xnext;
676		681
677	if (prev != next)	682	if (prev != next)
678	{	683	{
679	xnext = next;	684	/* has this coro been created yet? */
680
681	if (next->mainstack)	685	if (next->mainstack)
682	{	686	{
		687	LOCK;
683	SAVE (prev, flags);	688	SAVE (prev, flags);
684	LOAD (next);	689	LOAD (next);
		690	UNLOCK;
685		691
686	/* mark this state as in-use */	692	/* mark this state as in-use */
687	next->mainstack = 0;	693	next->mainstack = 0;
688	next->tmps_ix = -2;	694	next->tmps_ix = -2;
689		695
…		…
708	continue_coro, (void *)next,	714	continue_coro, (void *)next,
709	next->stack->sptr, labs (next->stack->ssize));	715	next->stack->sptr, labs (next->stack->ssize));
710	}	716	}
711		717
712	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		719	prev->cursp = stacklevel;
713	/* don't add any code here */	720	/* don't add any code here */
714	}	721	}
715		722	else
		723	next->cursp = stacklevel;
716	}	724	}
717	else if (next->tmps_ix == -2)	725	else if (next->tmps_ix == -2)
718	croak ("tried to transfer to running coroutine");	726	croak ("tried to transfer to running coroutine");
719	else	727	else
720	{	728	{
		729	LOCK;
721	SAVE (prev, -1); /* first get rid of the old state */	730	SAVE (prev, -1); /* first get rid of the old state */
		731	UNLOCK;
722		732
		733	/* create the coroutine for the first time */
723	if (flags & TRANSFER_SAVE_CCTXT)	734	if (flags & TRANSFER_SAVE_CCTXT)
724	{	735	{
725	if (!prev->stack)	736	if (!prev->stack)
726	allocate_stack (prev, 0);	737	allocate_stack (prev, 0);
727		738
		739	/* the new coroutine starts with start_env again */
		740	PL_top_env = &PL_start_env;
		741
728	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
729	{	743	{
730	setup_coro (next);	744	setup_coro (next);
		745	next->cursp = stacklevel;
731		746
732	prev->stack->refcnt++;	747	prev->stack->refcnt++;
733	prev->stack->usecnt++;	748	prev->stack->usecnt++;
734	next->stack = prev->stack;	749	next->stack = prev->stack;
735	next->gencnt = prev->gencnt;	750	next->gencnt = prev->gencnt;
736	}	751	}
737	else	752	else
738	{	753	{
		754	assert (!next->stack);
739	allocate_stack (next, 1);	755	allocate_stack (next, 1);
740	coro_create (&(next->stack->cctx),	756	coro_create (&(next->stack->cctx),
741	setup_coro, (void *)next,	757	setup_coro, (void *)next,
742	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
743	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		760	prev->cursp = stacklevel;
744	/* don't add any code here */	761	/* don't add any code here */
745	}	762	}
746	}	763	}
747	else	764	else
		765	{
748	setup_coro (next);	766	setup_coro (next);
		767	next->cursp = stacklevel;
		768	}
749	}	769	}
750
751	/*
752	* xnext is now either prev or next, depending on wether
753	* we switched the c stack or not. that's why I use a global
754	* variable, that should become thread-specific at one point.
755	*/
756	xnext->cursp = stacklevel;
757	}	770	}
758		771
		772	LOCK;
759	if (coro_mortal)	773	if (coro_mortal)
760	{	774	{
761	SvREFCNT_dec (coro_mortal);	775	SvREFCNT_dec (coro_mortal);
762	coro_mortal = 0;	776	coro_mortal = 0;
763	}	777	}
		778	UNLOCK;
764	}	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;
765		784
766	#define SV_CORO(sv,func) \	785	#define SV_CORO(sv,func) \
767	do { \	786	do { \
768	if (SvROK (sv)) \	787	if (SvROK (sv)) \
769	sv = SvRV (sv); \	788	sv = SvRV (sv); \
770	\	789	\
771	if (SvTYPE(sv) == SVt_PVHV) \	790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \
772	{ \	791	{ \
773	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); \
774	\	793	\
775	if (!he) \	794	if (!he) \
776	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); \
777	\	796	\
778	(sv) = SvRV (HeVAL(he)); \	797	(sv) = SvRV (HeVAL(he)); \
779	} \	798	} \
780	\	799	\
781	/* must also be changed inside Coro::Cont::yield */ \	800	/* must also be changed inside Coro::Cont::yield */ \
782	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
783	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); \
784	\	803	\
785	} while(0)	804	} while(0)
786		805
787	#define SvSTATE(sv) (struct coro *)SvIV (sv)	806	static void
		807	coro_state_destroy (struct coro *coro)
		808	{
		809	if (coro->refcnt--)
		810	return;
788		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
789	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
790	api_transfer(pTHX_ SV prev, SV next, int flags)	863	api_transfer (pTHX_ SV prev, SV next, int flags)
791	{	864	{
792	SV_CORO (prev, "Coro::transfer");	865	SV_CORO (prev, "Coro::transfer");
793	SV_CORO (next, "Coro::transfer");	866	SV_CORO (next, "Coro::transfer");
794		867
795	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
796	}	869	}
797		870
798	/ Coro ******************************************************************/	871	/ Coro ******************************************************************/
799		872
800	#define PRIO_MAX 3	873	#define PRIO_MAX 3
…		…
804	#define PRIO_IDLE -3	877	#define PRIO_IDLE -3
805	#define PRIO_MIN -4	878	#define PRIO_MIN -4
806		879
807	/* for Coro.pm */	880	/* for Coro.pm */
808	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
809	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
810	static int coro_nready;	883	static int coro_nready;
811		884
812	static void	885	static void
813	coro_enq (SV *sv)	886	coro_enq (pTHX_ SV *sv)
814	{	887	{
		888	int prio;
		889
815	if (SvTYPE (sv) == SVt_PVHV)	890	if (SvTYPE (sv) != SVt_PVHV)
816	{
817	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
818	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
819
820	prio = prio > PRIO_MAX ? PRIO_MAX
821	: prio < PRIO_MIN ? PRIO_MIN
822	: prio;
823
824	av_push (coro_ready [prio - PRIO_MIN], sv);
825	coro_nready++;
826
827	return;
828	}
829
830	croak ("Coro::ready tried to enqueue something that is not a coroutine");	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++;
831	}	901	}
832		902
833	static SV *	903	static SV *
834	coro_deq (int min_prio)	904	coro_deq (pTHX_ int min_prio)
835	{	905	{
836	int prio = PRIO_MAX - PRIO_MIN;	906	int prio = PRIO_MAX - PRIO_MIN;
837		907
838	min_prio -= PRIO_MIN;	908	min_prio -= PRIO_MIN;
839	if (min_prio < 0)	909	if (min_prio < 0)
840	min_prio = 0;	910	min_prio = 0;
841		911
842	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	912	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
843	if (av_len (coro_ready[prio]) >= 0)	913	if (AvFILLp (coro_ready [prio]) >= 0)
844	{	914	{
845	coro_nready--;	915	coro_nready--;
846	return av_shift (coro_ready[prio]);	916	return av_shift (coro_ready [prio]);
847	}	917	}
848		918
849	return 0;	919	return 0;
850	}	920	}
851		921
852	static void	922	static void
853	api_ready (SV *coro)	923	api_ready (SV *coro)
854	{	924	{
		925	dTHX;
		926
855	if (SvROK (coro))	927	if (SvROK (coro))
856	coro = SvRV (coro);	928	coro = SvRV (coro);
857		929
		930	LOCK;
858	coro_enq (SvREFCNT_inc (coro));	931	coro_enq (aTHX_ SvREFCNT_inc (coro));
		932	UNLOCK;
859	}	933	}
860		934
861	static void	935	static void
862	api_schedule (void)	936	api_schedule (void)
863	{	937	{
		938	dTHX;
		939
864	SV prev, next;	940	SV prev, next;
865		941
		942	LOCK;
		943
866	prev = SvRV (GvSV (coro_current));	944	prev = SvRV (GvSV (coro_current));
867	next = coro_deq (PRIO_MIN);	945	next = coro_deq (aTHX_ PRIO_MIN);
868		946
869	if (!next)	947	if (!next)
870	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
871		949
872	/* free this only after the transfer */	950	/* free this only after the transfer */
…		…
875		953
876	SvRV (GvSV (coro_current)) = next;	954	SvRV (GvSV (coro_current)) = next;
877		955
878	SV_CORO (next, "Coro::schedule");	956	SV_CORO (next, "Coro::schedule");
879		957
		958	UNLOCK;
		959
880	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
881	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
882	}	962	}
883		963
884	static void	964	static void
885	api_cede (void)	965	api_cede (void)
886	{	966	{
		967	dTHX;
		968
		969	LOCK;
887	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
888		972
889	api_schedule ();	973	api_schedule ();
890	}	974	}
891		975
892	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
893		977
894	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
895		979
896	BOOT:	980	BOOT:
897	{ /* {} 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
898	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
899	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
900	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
901		990
902	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
903	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
904	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
905	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
906		995
907	if (!padlist_cache)
908	padlist_cache = newHV ();
909
910	main_mainstack = PL_mainstack;	996	main_mainstack = PL_mainstack;
911		997
912	coroapi.ver = CORO_API_VERSION;	998	coroapi.ver = CORO_API_VERSION;
913	coroapi.transfer = api_transfer;	999	coroapi.transfer = api_transfer;
914	}
915		1000
916	Coro::State	1001	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
917	_newprocess(args)	1002	}
918	SV * args	1003
919	PROTOTYPE: $	1004	SV *
		1005	new (char *klass, ...)
920	CODE:	1006	CODE:
921	Coro__State coro;	1007	{
		1008	struct coro *coro;
		1009	HV *hv;
		1010	int i;
922		1011
923	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
924	croak ("Coro::State::_newprocess expects an arrayref");
925
926	New (0, coro, 1, struct coro);	1012	Newz (0, coro, 1, struct coro);
		1013	coro->args = newAV ();
927		1014
928	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1015	for (i = 1; i < items; i++)
		1016	av_push (coro->args, newSVsv (ST (i)));
		1017
929	coro->mainstack = 0; /* actual work is done inside transfer */	1018	/coro->mainstack = 0; //actual work is done inside transfer /
930	coro->stack = 0;	1019	/coro->stack = 0;/
931		1020
932	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	}
933	OUTPUT:	1025	OUTPUT:
934	RETVAL	1026	RETVAL
935		1027
936	void	1028	void
937	transfer(prev, next, flags)	1029	transfer(prev, next, flags)
938	SV *prev	1030	SV *prev
939	SV *next	1031	SV *next
940	int flags	1032	int flags
941	PROTOTYPE: @
942	CODE:	1033	CODE:
943	PUTBACK;	1034	PUTBACK;
944	SV_CORO (next, "Coro::transfer");	1035	SV_CORO (next, "Coro::transfer");
945	SV_CORO (prev, "Coro::transfer");	1036	SV_CORO (prev, "Coro::transfer");
946	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
947	SPAGAIN;	1038	SPAGAIN;
948		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
949	void	1060	void
950	DESTROY(coro)	1061	_clone_state_from (SV dst, SV src)
951	Coro::State coro	1062	CODE:
952	CODE:	1063	{
		1064	struct coro *coro_src = SvSTATE (src);
953		1065
954	if (coro->mainstack && coro->mainstack != main_mainstack)	1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
955	{
956	struct coro temp;
957		1067
958	PUTBACK;	1068	++coro_src->refcnt;
959	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;
960	LOAD(aTHX_ coro);	1070	}
961	SPAGAIN;
962
963	destroy_stacks (aTHX);
964
965	LOAD((&temp)); /* this will get rid of defsv etc.. */
966	SPAGAIN;
967
968	coro->mainstack = 0;
969	}
970
971	deallocate_stack (coro);
972
973	Safefree (coro);
974		1071
975	void	1072	void
976	flush()
977	CODE:
978	#ifdef MAY_FLUSH
979	flush_padlist_cache ();
980	#endif
981
982	void
983	_exit(code)	1073	_exit (code)
984	int code	1074	int code
985	PROTOTYPE: $	1075	PROTOTYPE: $
986	CODE:	1076	CODE:
987	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
988	_exit (code);	1077	_exit (code);
989	#else
990	signal (SIGTERM, SIG_DFL);
991	raise (SIGTERM);
992	exit (code);
993	#endif
994		1078
995	MODULE = Coro::State PACKAGE = Coro::Cont	1079	MODULE = Coro::State PACKAGE = Coro::Cont
996		1080
997	# this is slightly dirty (should expose a c-level api)
998
999	void	1081	void
1000	yield(...)	1082	yield (...)
1001	PROTOTYPE: @	1083	PROTOTYPE: @
1002	CODE:	1084	CODE:
1003	static SV *returnstk;	1085	SV *yieldstack;
1004	SV *sv;	1086	SV *sv;
1005	AV *defav = GvAV (PL_defgv);	1087	AV *defav = GvAV (PL_defgv);
1006	struct coro prev, next;	1088	struct coro prev, next;
1007		1089
1008	if (!returnstk)	1090	yieldstack = *hv_fetch (
1009	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1091	(HV *)SvRV (GvSV (coro_current)),
		1092	"yieldstack", sizeof ("yieldstack") - 1,
		1093	0
		1094	);
1010		1095
1011	/* set up @_ -- ugly */	1096	/* set up @_ -- ugly */
1012	av_clear (defav);	1097	av_clear (defav);
1013	av_fill (defav, items - 1);	1098	av_fill (defav, items - 1);
1014	while (items--)	1099	while (items--)
1015	av_store (defav, items, SvREFCNT_inc (ST(items)));	1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1016		1101
1017	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1018	sv = av_pop ((AV *)SvRV (returnstk));	1102	sv = av_pop ((AV *)SvRV (yieldstack));
1019	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)));
1020	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)));
1021	SvREFCNT_dec (sv);	1105	SvREFCNT_dec (sv);
1022		1106
1023	transfer(aTHX_ prev, next, 0);	1107	coro_state_transfer (aTHX_ prev, next, 0);
1024		1108
1025	MODULE = Coro::State PACKAGE = Coro	1109	MODULE = Coro::State PACKAGE = Coro
1026
1027	# this is slightly dirty (should expose a c-level api)
1028		1110
1029	BOOT:	1111	BOOT:
1030	{	1112	{
1031	int i;	1113	int i;
1032	HV *stash = gv_stashpv ("Coro", TRUE);	1114	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1052	coroapi.ready = api_ready;	1134	coroapi.ready = api_ready;
1053	coroapi.nready = &coro_nready;	1135	coroapi.nready = &coro_nready;
1054	coroapi.current = coro_current;	1136	coroapi.current = coro_current;
1055		1137
1056	GCoroAPI = &coroapi;	1138	GCoroAPI = &coroapi;
1057	sv_setiv(sv, (IV)&coroapi);	1139	sv_setiv (sv, (IV)&coroapi);
1058	SvREADONLY_on(sv);	1140	SvREADONLY_on (sv);
1059	}	1141	}
1060	}	1142	}
1061		1143
		1144	#if !PERL_MICRO
		1145
1062	void	1146	void
1063	ready(self)	1147	ready (self)
1064	SV * self	1148	SV * self
1065	PROTOTYPE: $	1149	PROTOTYPE: $
1066	CODE:	1150	CODE:
1067	api_ready (self);	1151	api_ready (self);
1068		1152
		1153	#endif
		1154
1069	int	1155	int
1070	nready(...)	1156	nready (...)
1071	PROTOTYPE:	1157	PROTOTYPE:
1072	CODE:	1158	CODE:
1073	RETVAL = coro_nready;	1159	RETVAL = coro_nready;
1074	OUTPUT:	1160	OUTPUT:
1075	RETVAL	1161	RETVAL
1076		1162
1077	void	1163	void
1078	schedule(...)	1164	schedule (...)
1079	PROTOTYPE:	1165	PROTOTYPE:
1080	CODE:	1166	CODE:
1081	api_schedule ();	1167	api_schedule ();
1082		1168
1083	void	1169	void
1084	cede(...)	1170	cede (...)
1085	PROTOTYPE:	1171	PROTOTYPE:
1086	CODE:	1172	CODE:
1087	api_cede ();	1173	api_cede ();
1088		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 1.41 by root, Tue Nov 27 02:51:03 2001 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 1.41 by root, Tue Nov 27 02:51:03 2001 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC