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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.45 by root, Tue May 27 01:15:31 2003 UTC vs.
Revision 1.87 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 */
…		…
47	void *sptr;	100	void *sptr;
48	long ssize; /* positive == mmap, otherwise malloc */	101	long ssize; /* positive == mmap, otherwise malloc */
49	} coro_stack;	102	} coro_stack;
50		103
51	struct coro {	104	struct coro {
52	/* the top-level JMPENV for each coroutine, needed to catch dies. */
53	JMPENV start_env;
54
55	/* the optional C context */	105	/* the optional C context */
56	coro_stack *stack;	106	coro_stack *stack;
57	void *cursp;	107	void *cursp;
58	int gencnt;	108	int gencnt;
59		109
…		…
72	AV *mainstack;	122	AV *mainstack;
73	SV **stack_sp;	123	SV **stack_sp;
74	OP *op;	124	OP *op;
75	SV **curpad;	125	SV **curpad;
76	AV *comppad;	126	AV *comppad;
		127	CV *compcv;
77	SV **stack_base;	128	SV **stack_base;
78	SV **stack_max;	129	SV **stack_max;
79	SV **tmps_stack;	130	SV **tmps_stack;
80	I32 tmps_floor;	131	I32 tmps_floor;
81	I32 tmps_ix;	132	I32 tmps_ix;
…		…
90	I32 savestack_ix;	141	I32 savestack_ix;
91	I32 savestack_max;	142	I32 savestack_max;
92	OP **retstack;	143	OP **retstack;
93	I32 retstack_ix;	144	I32 retstack_ix;
94	I32 retstack_max;	145	I32 retstack_max;
		146	PMOP *curpm;
95	COP *curcop;	147	COP *curcop;
96	JMPENV *top_env;	148	JMPENV *top_env;
97		149
		150	/* coro process data */
		151	int prio;
		152
98	/* data associated with this coroutine (initial args) */	153	/* data associated with this coroutine (initial args) */
99	AV *args;	154	AV *args;
		155	int refcnt;
100	};	156	};
101		157
102	typedef struct coro *Coro__State;	158	typedef struct coro *Coro__State;
103	typedef struct coro *Coro__State_or_hashref;	159	typedef struct coro *Coro__State_or_hashref;
104		160
105	static AV main_mainstack; / used to differentiate between $main and others */	161	static AV *
106	static HV *coro_state_stash;	162	coro_clone_padlist (pTHX_ CV *cv)
107	static SV *ucoro_state_sv;
108	static U32 ucoro_state_hash;
109	static HV *padlist_cache;
110	static SV coro_mortal; / will be freed after next transfer */
111
112	/* mostly copied from op.c:cv_clone2 */
113	STATIC AV *
114	clone_padlist (AV *protopadlist)
115	{	163	{
116	AV *av;	164	AV *padlist = CvPADLIST (cv);
117	I32 ix;
118	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
119	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
120	SV **pname = AvARRAY (protopad_name);
121	SV **ppad = AvARRAY (protopad);
122	I32 fname = AvFILLp (protopad_name);
123	I32 fpad = AvFILLp (protopad);
124	AV newpadlist, newpad_name, *newpad;	165	AV newpadlist, newpad;
125	SV **npad;
126
127	newpad_name = newAV ();
128	for (ix = fname; ix >= 0; ix--)
129	av_store (newpad_name, ix, SvREFCNT_inc (pname[ix]));
130
131	newpad = newAV ();
132	av_fill (newpad, AvFILLp (protopad));
133	npad = AvARRAY (newpad);
134		166
135	newpadlist = newAV ();	167	newpadlist = newAV ();
136	AvREAL_off (newpadlist);	168	AvREAL_off (newpadlist);
137	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)));
138	av_store (newpadlist, 1, (SV *) newpad);	178	av_store (newpadlist, 1, (SV *)newpad);
139		179
140	av = newAV (); /* will be @_ */	180	return newpadlist;
141	av_extend (av, 0);	181	}
142	av_store (newpad, 0, (SV *) av);
143	AvFLAGS (av) = AVf_REIFY;
144		182
145	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))
146	{	188	{
147	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	189	I32 i = AvFILLp (padlist);
148	if (namesv && namesv != &PL_sv_undef)	190	while (i >= 0)
149	{	191	{
150	char name = SvPVX (namesv); / XXX */	192	SV **svp = av_fetch (padlist, i--, FALSE);
151	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	193	if (svp)
152	{ /* lexical from outside? */
153	npad[ix] = SvREFCNT_inc (ppad[ix]);
154	}	194	{
155	else
156	{ /* our own lexical */
157	SV *sv;	195	SV *sv;
158	if (*name == '&')	196	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
159	sv = SvREFCNT_inc (ppad[ix]);	197	SvREFCNT_dec (sv);
160	else if (*name == '@')	198
161	sv = (SV *) newAV ();	199	SvREFCNT_dec (*svp);
162	else if (*name == '%')
163	sv = (SV *) newHV ();
164	else
165	sv = NEWSV (0, 0);
166	if (!SvPADBUSY (sv))
167	SvPADMY_on (sv);
168	npad[ix] = sv;
169	}	200	}
170	}	201	}
171	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	202
172	{	203	SvREFCNT_dec ((SV*)padlist);
173	npad[ix] = SvREFCNT_inc (ppad[ix]);
174	}
175	else
176	{
177	SV *sv = NEWSV (0, 0);
178	SvPADTMP_on (sv);
179	npad[ix] = sv;
180	}
181	}	204	}
		205	}
182		206
183	#if 0 /* return -ENOTUNDERSTOOD */	207	static int
184	/* 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;
185		212
186	for (ix = fpad; ix > 0; ix--) {	213	/* casting is fun. */
187	SV* namesv = (ix <= fname) ? pname[ix] : Nullsv;	214	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
188	if (namesv	215	free_padlist (aTHX_ padlist);
189	&& namesv != &PL_sv_undef	216
190	&& !(SvFLAGS(namesv) & SVf_FAKE)	217	SvREFCNT_dec (av);
191	&& *SvPVX(namesv) == '&'	218
192	&& CvCLONE(ppad[ix]))	219	return 0;
193	{	220	}
194	CV kid = cv_clone((CV)ppad[ix]);	221
195	SvREFCNT_dec(ppad[ix]);	222	#define PERL_MAGIC_coro PERL_MAGIC_ext
196	CvCLONE_on(kid);	223
197	SvPADMY_on(kid);	224	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
198	npad[ix] = (SV*)kid;	225
199	}	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 ();
200	}	259	}
201	#endif
202		260
203	return newpadlist;
204	}
205
206	#ifdef MAY_FLUSH
207	STATIC void
208	free_padlist (AV *padlist)
209	{
210	/* may be during global destruction */
211	if (SvREFCNT(padlist))
212	{
213	I32 i = AvFILLp(padlist);
214	while (i >= 0)
215	{
216	SV **svp = av_fetch(padlist, i--, FALSE);
217	SV sv = svp ? svp : Nullsv;
218	if (sv)
219	SvREFCNT_dec(sv);
220	}
221
222	SvREFCNT_dec((SV*)padlist);
223	}
224	}
225	#endif
226
227	/* the next two functions merely cache the padlists */
228	STATIC void
229	get_padlist (CV *cv)
230	{
231	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);
232
233	if (he && AvFILLp ((AV )he) >= 0)
234	CvPADLIST (cv) = (AV )av_pop ((AV )*he);
235	else
236	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));
237	}
238
239	STATIC void
240	put_padlist (CV *cv)
241	{
242	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);
243
244	if (SvTYPE (*he) != SVt_PVAV)
245	{
246	SvREFCNT_dec (*he);
247	he = (SV )newAV ();
248	}
249
250	av_push ((AV )he, (SV *)CvPADLIST (cv));	261	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
251	}	262	}
252
253	#ifdef MAY_FLUSH
254	STATIC void
255	flush_padlist_cache ()
256	{
257	HV *hv = padlist_cache;
258	padlist_cache = newHV ();
259
260	if (hv_iterinit (hv))
261	{
262	HE *he;
263	AV *padlist;
264
265	while (!!(he = hv_iternext (hv)))
266	{
267	AV av = (AV )HeVAL(he);
268
269	/* casting is fun. */
270	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
271	free_padlist (padlist);
272	}
273	}
274
275	SvREFCNT_dec (hv);
276	}
277	#endif
278		263
279	#define SB do {	264	#define SB do {
280	#define SE } while (0)	265	#define SE } while (0)
281		266
282	#define LOAD(state) load_state(aTHX_ (state));	267	#define LOAD(state) load_state(aTHX_ (state));
283	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	268	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
284		269
285	#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
286		271
287	static void	272	static void
288	load_state(pTHX_ Coro__State c)	273	load_state(pTHX_ Coro__State c)
289	{	274	{
290	PL_dowarn = c->dowarn;	275	PL_dowarn = c->dowarn;
…		…
295	PL_mainstack = c->mainstack;	280	PL_mainstack = c->mainstack;
296	PL_stack_sp = c->stack_sp;	281	PL_stack_sp = c->stack_sp;
297	PL_op = c->op;	282	PL_op = c->op;
298	PL_curpad = c->curpad;	283	PL_curpad = c->curpad;
299	PL_comppad = c->comppad;	284	PL_comppad = c->comppad;
		285	PL_compcv = c->compcv;
300	PL_stack_base = c->stack_base;	286	PL_stack_base = c->stack_base;
301	PL_stack_max = c->stack_max;	287	PL_stack_max = c->stack_max;
302	PL_tmps_stack = c->tmps_stack;	288	PL_tmps_stack = c->tmps_stack;
303	PL_tmps_floor = c->tmps_floor;	289	PL_tmps_floor = c->tmps_floor;
304	PL_tmps_ix = c->tmps_ix;	290	PL_tmps_ix = c->tmps_ix;
…		…
310	PL_scopestack_ix = c->scopestack_ix;	296	PL_scopestack_ix = c->scopestack_ix;
311	PL_scopestack_max = c->scopestack_max;	297	PL_scopestack_max = c->scopestack_max;
312	PL_savestack = c->savestack;	298	PL_savestack = c->savestack;
313	PL_savestack_ix = c->savestack_ix;	299	PL_savestack_ix = c->savestack_ix;
314	PL_savestack_max = c->savestack_max;	300	PL_savestack_max = c->savestack_max;
		301	#if PERL_VERSION < 9
315	PL_retstack = c->retstack;	302	PL_retstack = c->retstack;
316	PL_retstack_ix = c->retstack_ix;	303	PL_retstack_ix = c->retstack_ix;
317	PL_retstack_max = c->retstack_max;	304	PL_retstack_max = c->retstack_max;
		305	#endif
		306	PL_curpm = c->curpm;
318	PL_curcop = c->curcop;	307	PL_curcop = c->curcop;
319	PL_top_env = c->top_env;	308	PL_top_env = c->top_env;
320		309
321	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	310	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
322	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	311	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
…		…
331	{	320	{
332	AV padlist = (AV )POPs;	321	AV padlist = (AV )POPs;
333		322
334	if (padlist)	323	if (padlist)
335	{	324	{
336	put_padlist (cv); /* mark this padlist as available */	325	put_padlist (aTHX_ cv); /* mark this padlist as available */
337	CvPADLIST(cv) = padlist;	326	CvPADLIST(cv) = padlist;
338	#ifdef USE_THREADS
339	/CvOWNER(cv) = (struct perl_thread )POPs;*/
340	#endif
341	}	327	}
342		328
343	++CvDEPTH(cv);	329	++CvDEPTH(cv);
344	}	330	}
345		331
…		…
372	if (CxTYPE(cx) == CXt_SUB)	358	if (CxTYPE(cx) == CXt_SUB)
373	{	359	{
374	CV *cv = cx->blk_sub.cv;	360	CV *cv = cx->blk_sub.cv;
375	if (CvDEPTH(cv))	361	if (CvDEPTH(cv))
376	{	362	{
377	#ifdef USE_THREADS
378	/XPUSHs ((SV )CvOWNER(cv));*/
379	/CvOWNER(cv) = 0;/
380	/error must unlock this cv etc.. etc.../
381	#endif
382	EXTEND (SP, CvDEPTH(cv)*2);	363	EXTEND (SP, CvDEPTH(cv)*2);
383		364
384	while (--CvDEPTH(cv))	365	while (--CvDEPTH(cv))
385	{	366	{
386	/* this tells the restore code to increment CvDEPTH */	367	/* this tells the restore code to increment CvDEPTH */
…		…
389	}	370	}
390		371
391	PUSHs ((SV *)CvPADLIST(cv));	372	PUSHs ((SV *)CvPADLIST(cv));
392	PUSHs ((SV *)cv);	373	PUSHs ((SV *)cv);
393		374
394	get_padlist (cv); /* this is a monster */	375	get_padlist (aTHX_ cv);
395	}	376	}
396	}	377	}
		378	#ifdef CXt_FORMAT
397	else if (CxTYPE(cx) == CXt_FORMAT)	379	else if (CxTYPE(cx) == CXt_FORMAT)
398	{	380	{
399	/* 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? */
400	/* my bold guess is as a simple, plain sub... */	382	/* my bold guess is as a simple, plain sub... */
401	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");
402	}	384	}
		385	#endif
403	}	386	}
404		387
405	if (top_si->si_type == PERLSI_MAIN)	388	if (top_si->si_type == PERLSI_MAIN)
406	break;	389	break;
407		390
…		…
425	c->mainstack = PL_mainstack;	408	c->mainstack = PL_mainstack;
426	c->stack_sp = PL_stack_sp;	409	c->stack_sp = PL_stack_sp;
427	c->op = PL_op;	410	c->op = PL_op;
428	c->curpad = PL_curpad;	411	c->curpad = PL_curpad;
429	c->comppad = PL_comppad;	412	c->comppad = PL_comppad;
		413	c->compcv = PL_compcv;
430	c->stack_base = PL_stack_base;	414	c->stack_base = PL_stack_base;
431	c->stack_max = PL_stack_max;	415	c->stack_max = PL_stack_max;
432	c->tmps_stack = PL_tmps_stack;	416	c->tmps_stack = PL_tmps_stack;
433	c->tmps_floor = PL_tmps_floor;	417	c->tmps_floor = PL_tmps_floor;
434	c->tmps_ix = PL_tmps_ix;	418	c->tmps_ix = PL_tmps_ix;
…		…
440	c->scopestack_ix = PL_scopestack_ix;	424	c->scopestack_ix = PL_scopestack_ix;
441	c->scopestack_max = PL_scopestack_max;	425	c->scopestack_max = PL_scopestack_max;
442	c->savestack = PL_savestack;	426	c->savestack = PL_savestack;
443	c->savestack_ix = PL_savestack_ix;	427	c->savestack_ix = PL_savestack_ix;
444	c->savestack_max = PL_savestack_max;	428	c->savestack_max = PL_savestack_max;
		429	#if PERL_VERSION < 9
445	c->retstack = PL_retstack;	430	c->retstack = PL_retstack;
446	c->retstack_ix = PL_retstack_ix;	431	c->retstack_ix = PL_retstack_ix;
447	c->retstack_max = PL_retstack_max;	432	c->retstack_max = PL_retstack_max;
		433	#endif
		434	c->curpm = PL_curpm;
448	c->curcop = PL_curcop;	435	c->curcop = PL_curcop;
449	c->top_env = PL_top_env;	436	c->top_env = PL_top_env;
450	}	437	}
451		438
452	/*	439	/*
453	* allocate various perl stacks. This is an exact copy	440	* allocate various perl stacks. This is an exact copy
454	* of perl.c:init_stacks, except that it uses less memory	441	* of perl.c:init_stacks, except that it uses less memory
455	* on the assumption that coroutines do not usually need	442	* on the (sometimes correct) assumption that coroutines do
456	* a lot of stackspace.	443	* not usually need a lot of stackspace.
457	*/	444	*/
458	STATIC void	445	static void
459	coro_init_stacks (pTHX)	446	coro_init_stacks (pTHX)
460	{	447	{
		448	LOCK;
		449
461	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	450	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
462	PL_curstackinfo->si_type = PERLSI_MAIN;	451	PL_curstackinfo->si_type = PERLSI_MAIN;
463	PL_curstack = PL_curstackinfo->si_stack;	452	PL_curstack = PL_curstackinfo->si_stack;
464	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	453	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
465		454
…		…
474		463
475	New(54,PL_markstack,16,I32);	464	New(54,PL_markstack,16,I32);
476	PL_markstack_ptr = PL_markstack;	465	PL_markstack_ptr = PL_markstack;
477	PL_markstack_max = PL_markstack + 16;	466	PL_markstack_max = PL_markstack + 16;
478		467
		468	#ifdef SET_MARK_OFFSET
479	SET_MARK_OFFSET;	469	SET_MARK_OFFSET;
		470	#endif
480		471
481	New(54,PL_scopestack,16,I32);	472	New(54,PL_scopestack,16,I32);
482	PL_scopestack_ix = 0;	473	PL_scopestack_ix = 0;
483	PL_scopestack_max = 16;	474	PL_scopestack_max = 16;
484		475
485	New(54,PL_savestack,96,ANY);	476	New(54,PL_savestack,96,ANY);
486	PL_savestack_ix = 0;	477	PL_savestack_ix = 0;
487	PL_savestack_max = 96;	478	PL_savestack_max = 96;
488		479
		480	#if PERL_VERSION < 9
489	New(54,PL_retstack,8,OP*);	481	New(54,PL_retstack,8,OP*);
490	PL_retstack_ix = 0;	482	PL_retstack_ix = 0;
491	PL_retstack_max = 8;	483	PL_retstack_max = 8;
		484	#endif
		485
		486	UNLOCK;
492	}	487	}
493		488
494	/*	489	/*
495	* destroy the stacks, the callchain etc...	490	* destroy the stacks, the callchain etc...
496	* still there is a memleak of 128 bytes...
497	*/	491	*/
498	STATIC void	492	static void
499	destroy_stacks(pTHX)	493	destroy_stacks(pTHX)
500	{	494	{
501	if (!IN_DESTRUCT)	495	if (!IN_DESTRUCT)
502	{	496	{
503	/* is this ugly, I ask? */	497	/* is this ugly, I ask? */
504	while (PL_scopestack_ix)	498	LEAVE_SCOPE (0);
505	LEAVE;
506		499
507	/* sure it is, but more important: is it correct?? :/ */	500	/* sure it is, but more important: is it correct?? :/ */
508	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
509	FREETMPS;	501	FREETMPS;
		502
		503	/POPSTACK_TO (PL_mainstack);//D//use/
510	}	504	}
511		505
512	while (PL_curstackinfo->si_next)	506	while (PL_curstackinfo->si_next)
513	PL_curstackinfo = PL_curstackinfo->si_next;	507	PL_curstackinfo = PL_curstackinfo->si_next;
514		508
515	while (PL_curstackinfo)	509	while (PL_curstackinfo)
516	{	510	{
517	PERL_SI *p = PL_curstackinfo->si_prev;	511	PERL_SI *p = PL_curstackinfo->si_prev;
518		512
519	{	513	{ /D//remove/
520	dSP;	514	dSP;
521	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	515	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
522	PUTBACK; /* possibly superfluous */	516	PUTBACK; /* possibly superfluous */
523	}	517	}
524		518
525	if (!IN_DESTRUCT)	519	if (!IN_DESTRUCT)
526	{	520	{
527	dounwind(-1);	521	dounwind (-1);/D//remove/
528	SvREFCNT_dec(PL_curstackinfo->si_stack);	522	SvREFCNT_dec (PL_curstackinfo->si_stack);
529	}	523	}
530		524
531	Safefree(PL_curstackinfo->si_cxstack);	525	Safefree (PL_curstackinfo->si_cxstack);
532	Safefree(PL_curstackinfo);	526	Safefree (PL_curstackinfo);
533	PL_curstackinfo = p;	527	PL_curstackinfo = p;
534	}	528	}
535		529
536	Safefree(PL_tmps_stack);	530	Safefree (PL_tmps_stack);
537	Safefree(PL_markstack);	531	Safefree (PL_markstack);
538	Safefree(PL_scopestack);	532	Safefree (PL_scopestack);
539	Safefree(PL_savestack);	533	Safefree (PL_savestack);
		534	#if PERL_VERSION < 9
540	Safefree(PL_retstack);	535	Safefree (PL_retstack);
		536	#endif
541	}	537	}
542		538
543	static void	539	static void
544	allocate_stack (Coro__State ctx, int alloc)	540	allocate_stack (Coro__State ctx, int alloc)
545	{	541	{
…		…
548	New (0, stack, 1, coro_stack);	544	New (0, stack, 1, coro_stack);
549		545
550	stack->refcnt = 1;	546	stack->refcnt = 1;
551	stack->usecnt = 1;	547	stack->usecnt = 1;
552	stack->gencnt = ctx->gencnt = 0;	548	stack->gencnt = ctx->gencnt = 0;
		549
553	if (alloc)	550	if (alloc)
554	{	551	{
555	#if HAVE_MMAP	552	#if HAVE_MMAP
556	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 */
557	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);
558	if (stack->sptr == (void *)-1)	555	if (stack->sptr != (void *)-1)
559	#endif
560	{	556	{
561	/FIXME//D//* reasonable stack size! */	557	# if STACKGUARD
		558	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		559	# endif
		560	}
		561	else
		562	#endif
		563	{
562	stack->ssize = -4096 * sizeof (long);	564	stack->ssize = - (STACKSIZE * (long)sizeof (long));
563	New (0, stack->sptr, 4096, long);	565	New (0, stack->sptr, STACKSIZE, long);
564	}	566	}
565	}	567	}
566	else	568	else
567	stack->sptr = 0;	569	stack->sptr = 0;
568		570
…		…
582	{	584	{
583	#ifdef HAVE_MMAP	585	#ifdef HAVE_MMAP
584	if (stack->ssize > 0 && stack->sptr)	586	if (stack->ssize > 0 && stack->sptr)
585	munmap (stack->sptr, stack->ssize);	587	munmap (stack->sptr, stack->ssize);
586	else	588	else
587	#else	589	#endif
588	Safefree (stack->sptr);	590	Safefree (stack->sptr);
589	#endif	591
590	Safefree (stack);	592	Safefree (stack);
591	}	593	}
592	else if (ctx->gencnt == stack->gencnt)	594	else if (ctx->gencnt == stack->gencnt)
593	--stack->usecnt;	595	--stack->usecnt;
594	}	596	}
…		…
598	setup_coro (void *arg)	600	setup_coro (void *arg)
599	{	601	{
600	/*	602	/*
601	* emulate part of the perl startup here.	603	* emulate part of the perl startup here.
602	*/	604	*/
		605	dTHX;
603	dSP;	606	dSP;
604	Coro__State ctx = (Coro__State)arg;	607	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	608	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
606		609
607	coro_init_stacks (aTHX);	610	coro_init_stacks (aTHX);
608	/PL_curcop = 0;/	611	/PL_curcop = 0;/
609	/PL_in_eval = PL_in_eval;/ /* inherit */	612	/PL_in_eval = PL_in_eval;/ /* inherit */
610	SvREFCNT_dec (GvAV (PL_defgv));	613	SvREFCNT_dec (GvAV (PL_defgv));
611	GvAV (PL_defgv) = ctx->args;	614	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
612		615
613	SPAGAIN;	616	SPAGAIN;
614		617
615	if (ctx->stack)	618	if (ctx->stack)
616	{	619	{
…		…
627	}	630	}
628	else	631	else
629	{	632	{
630	UNOP myop;	633	UNOP myop;
631		634
632	PL_op = (OP *)&myop;
633
634	Zero(&myop, 1, UNOP);	635	Zero(&myop, 1, UNOP);
635	myop.op_next = Nullop;	636	myop.op_next = Nullop;
636	myop.op_flags = OPf_WANT_VOID;	637	myop.op_flags = OPf_WANT_VOID;
		638
		639	PL_op = (OP *)&myop;
637		640
638	PUSHMARK(SP);	641	PUSHMARK(SP);
639	XPUSHs (sub_init);	642	XPUSHs (sub_init);
640	/*	643	/*
641	* the next line is slightly wrong, as PL_op->op_next	644	* the next line is slightly wrong, as PL_op->op_next
…		…
656	continue_coro (void *arg)	659	continue_coro (void *arg)
657	{	660	{
658	/*	661	/*
659	* this is a _very_ stripped down perl interpreter ;)	662	* this is a _very_ stripped down perl interpreter ;)
660	*/	663	*/
		664	dTHX;
661	Coro__State ctx = (Coro__State)arg;	665	Coro__State ctx = (Coro__State)arg;
662	JMPENV coro_start_env;
663		666
664	PL_top_env = &ctx->start_env;	667	PL_top_env = &PL_start_env;
665		668
666	ctx->cursp = 0;	669	ctx->cursp = 0;
667	PL_op = PL_op->op_next;	670	PL_op = PL_op->op_next;
668	CALLRUNOPS(aTHX);	671	CALLRUNOPS(aTHX);
669		672
670	abort ();	673	abort ();
671	}	674	}
672		675
673	STATIC void	676	/* never call directly, always through the coro_state_transfer global variable */
		677	static void
674	transfer(pTHX_ struct coro prev, struct coro next, int flags)	678	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)
675	{	679	{
676	dSTACKLEVEL;	680	dSTACKLEVEL;
677	static struct coro *xnext;
678		681
679	if (prev != next)	682	if (prev != next)
680	{	683	{
681	xnext = next;	684	/* has this coro been created yet? */
682
683	if (next->mainstack)	685	if (next->mainstack)
684	{	686	{
		687	LOCK;
685	SAVE (prev, flags);	688	SAVE (prev, flags);
686	LOAD (next);	689	LOAD (next);
		690	UNLOCK;
687		691
688	/* mark this state as in-use */	692	/* mark this state as in-use */
689	next->mainstack = 0;	693	next->mainstack = 0;
690	next->tmps_ix = -2;	694	next->tmps_ix = -2;
691		695
…		…
710	continue_coro, (void *)next,	714	continue_coro, (void *)next,
711	next->stack->sptr, labs (next->stack->ssize));	715	next->stack->sptr, labs (next->stack->ssize));
712	}	716	}
713		717
714	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	718	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		719	prev->cursp = stacklevel;
715	/* don't add any code here */	720	/* don't add any code here */
716	}	721	}
717		722	else
		723	next->cursp = stacklevel;
718	}	724	}
719	else if (next->tmps_ix == -2)	725	else if (next->tmps_ix == -2)
720	croak ("tried to transfer to running coroutine");	726	croak ("tried to transfer to running coroutine");
721	else	727	else
722	{	728	{
		729	LOCK;
723	SAVE (prev, -1); /* first get rid of the old state */	730	SAVE (prev, -1); /* first get rid of the old state */
		731	UNLOCK;
724		732
		733	/* create the coroutine for the first time */
725	if (flags & TRANSFER_SAVE_CCTXT)	734	if (flags & TRANSFER_SAVE_CCTXT)
726	{	735	{
727	if (!prev->stack)	736	if (!prev->stack)
728	allocate_stack (prev, 0);	737	allocate_stack (prev, 0);
729		738
		739	/* the new coroutine starts with start_env again */
		740	PL_top_env = &PL_start_env;
		741
730	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	742	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
731	{	743	{
732	PL_top_env = &next->start_env;
733
734	setup_coro (next);	744	setup_coro (next);
		745	next->cursp = stacklevel;
735		746
736	prev->stack->refcnt++;	747	prev->stack->refcnt++;
737	prev->stack->usecnt++;	748	prev->stack->usecnt++;
738	next->stack = prev->stack;	749	next->stack = prev->stack;
739	next->gencnt = prev->gencnt;	750	next->gencnt = prev->gencnt;
740	}	751	}
741	else	752	else
742	{	753	{
		754	assert (!next->stack);
743	allocate_stack (next, 1);	755	allocate_stack (next, 1);
744	coro_create (&(next->stack->cctx),	756	coro_create (&(next->stack->cctx),
745	setup_coro, (void *)next,	757	setup_coro, (void *)next,
746	next->stack->sptr, labs (next->stack->ssize));	758	next->stack->sptr, labs (next->stack->ssize));
747	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	759	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		760	prev->cursp = stacklevel;
748	/* don't add any code here */	761	/* don't add any code here */
749	}	762	}
750	}	763	}
751	else	764	else
		765	{
752	setup_coro (next);	766	setup_coro (next);
		767	next->cursp = stacklevel;
		768	}
753	}	769	}
754
755	/*
756	* xnext is now either prev or next, depending on wether
757	* we switched the c stack or not. that's why I use a global
758	* variable, that should become thread-specific at one point.
759	*/
760	xnext->cursp = stacklevel;
761	}	770	}
762		771
		772	LOCK;
763	if (coro_mortal)	773	if (coro_mortal)
764	{	774	{
765	SvREFCNT_dec (coro_mortal);	775	SvREFCNT_dec (coro_mortal);
766	coro_mortal = 0;	776	coro_mortal = 0;
767	}	777	}
		778	UNLOCK;
768	}	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;
769		784
770	#define SV_CORO(sv,func) \	785	#define SV_CORO(sv,func) \
771	do { \	786	do { \
772	if (SvROK (sv)) \	787	if (SvROK (sv)) \
773	sv = SvRV (sv); \	788	sv = SvRV (sv); \
774	\	789	\
775	if (SvTYPE(sv) == SVt_PVHV) \	790	if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \
776	{ \	791	{ \
777	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); \
778	\	793	\
779	if (!he) \	794	if (!he) \
780	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); \
781	\	796	\
782	(sv) = SvRV (HeVAL(he)); \	797	(sv) = SvRV (HeVAL(he)); \
783	} \	798	} \
784	\	799	\
785	/* must also be changed inside Coro::Cont::yield */ \	800	/* must also be changed inside Coro::Cont::yield */ \
786	if (!SvOBJECT(sv) \|\| SvSTASH(sv) != coro_state_stash) \	801	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
787	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); \
788	\	803	\
789	} while(0)	804	} while(0)
790		805
791	#define SvSTATE(sv) (struct coro *)SvIV (sv)	806	static void
		807	coro_state_destroy (struct coro *coro)
		808	{
		809	if (coro->refcnt--)
		810	return;
792		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
793	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
794	api_transfer(pTHX_ SV prev, SV next, int flags)	863	api_transfer (pTHX_ SV prev, SV next, int flags)
795	{	864	{
796	SV_CORO (prev, "Coro::transfer");	865	SV_CORO (prev, "Coro::transfer");
797	SV_CORO (next, "Coro::transfer");	866	SV_CORO (next, "Coro::transfer");
798		867
799	transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags);	868	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
800	}	869	}
801		870
802	/ Coro ******************************************************************/	871	/ Coro ******************************************************************/
803		872
804	#define PRIO_MAX 3	873	#define PRIO_MAX 3
…		…
808	#define PRIO_IDLE -3	877	#define PRIO_IDLE -3
809	#define PRIO_MIN -4	878	#define PRIO_MIN -4
810		879
811	/* for Coro.pm */	880	/* for Coro.pm */
812	static GV coro_current, coro_idle;	881	static GV coro_current, coro_idle;
813	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];	882	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
814	static int coro_nready;	883	static int coro_nready;
815		884
816	static void	885	static void
817	coro_enq (SV *sv)	886	coro_enq (pTHX_ SV *sv)
818	{	887	{
		888	int prio;
		889
819	if (SvTYPE (sv) == SVt_PVHV)	890	if (SvTYPE (sv) != SVt_PVHV)
820	{
821	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
822	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
823
824	prio = prio > PRIO_MAX ? PRIO_MAX
825	: prio < PRIO_MIN ? PRIO_MIN
826	: prio;
827
828	av_push (coro_ready [prio - PRIO_MIN], sv);
829	coro_nready++;
830
831	return;
832	}
833
834	croak ("Coro::ready tried to enqueue something that is not a coroutine");	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++;
835	}	901	}
836		902
837	static SV *	903	static SV *
838	coro_deq (int min_prio)	904	coro_deq (pTHX_ int min_prio)
839	{	905	{
840	int prio = PRIO_MAX - PRIO_MIN;	906	int prio = PRIO_MAX - PRIO_MIN;
841		907
842	min_prio -= PRIO_MIN;	908	min_prio -= PRIO_MIN;
843	if (min_prio < 0)	909	if (min_prio < 0)
844	min_prio = 0;	910	min_prio = 0;
845		911
846	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	912	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
847	if (av_len (coro_ready[prio]) >= 0)	913	if (AvFILLp (coro_ready [prio]) >= 0)
848	{	914	{
849	coro_nready--;	915	coro_nready--;
850	return av_shift (coro_ready[prio]);	916	return av_shift (coro_ready [prio]);
851	}	917	}
852		918
853	return 0;	919	return 0;
854	}	920	}
855		921
856	static void	922	static void
857	api_ready (SV *coro)	923	api_ready (SV *coro)
858	{	924	{
		925	dTHX;
		926
859	if (SvROK (coro))	927	if (SvROK (coro))
860	coro = SvRV (coro);	928	coro = SvRV (coro);
861		929
		930	LOCK;
862	coro_enq (SvREFCNT_inc (coro));	931	coro_enq (aTHX_ SvREFCNT_inc (coro));
		932	UNLOCK;
863	}	933	}
864		934
865	static void	935	static void
866	api_schedule (void)	936	api_schedule (void)
867	{	937	{
		938	dTHX;
		939
868	SV prev, next;	940	SV prev, next;
869		941
		942	LOCK;
		943
870	prev = SvRV (GvSV (coro_current));	944	prev = SvRV (GvSV (coro_current));
871	next = coro_deq (PRIO_MIN);	945	next = coro_deq (aTHX_ PRIO_MIN);
872		946
873	if (!next)	947	if (!next)
874	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));	948	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
875		949
876	/* free this only after the transfer */	950	/* free this only after the transfer */
…		…
879		953
880	SvRV (GvSV (coro_current)) = next;	954	SvRV (GvSV (coro_current)) = next;
881		955
882	SV_CORO (next, "Coro::schedule");	956	SV_CORO (next, "Coro::schedule");
883		957
		958	UNLOCK;
		959
884	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),	960	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
885	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);	961	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
886	}	962	}
887		963
888	static void	964	static void
889	api_cede (void)	965	api_cede (void)
890	{	966	{
		967	dTHX;
		968
		969	LOCK;
891	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));	970	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		971	UNLOCK;
892		972
893	api_schedule ();	973	api_schedule ();
894	}	974	}
895		975
896	MODULE = Coro::State PACKAGE = Coro::State	976	MODULE = Coro::State PACKAGE = Coro::State
897		977
898	PROTOTYPES: ENABLE	978	PROTOTYPES: DISABLE
899		979
900	BOOT:	980	BOOT:
901	{ /* {} 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
902	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	987	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
903	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	988	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
904	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	989	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
905		990
906	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	991	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
907	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	992	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
908	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	993	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
909	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	994	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
910		995
911	if (!padlist_cache)
912	padlist_cache = newHV ();
913
914	main_mainstack = PL_mainstack;	996	main_mainstack = PL_mainstack;
915		997
916	coroapi.ver = CORO_API_VERSION;	998	coroapi.ver = CORO_API_VERSION;
917	coroapi.transfer = api_transfer;	999	coroapi.transfer = api_transfer;
918	}
919		1000
920	Coro::State	1001	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
921	_newprocess(args)	1002	}
922	SV * args	1003
923	PROTOTYPE: $	1004	SV *
		1005	new (char *klass, ...)
924	CODE:	1006	CODE:
925	Coro__State coro;	1007	{
		1008	struct coro *coro;
		1009	HV *hv;
		1010	int i;
926		1011
927	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
928	croak ("Coro::State::_newprocess expects an arrayref");
929
930	New (0, coro, 1, struct coro);	1012	Newz (0, coro, 1, struct coro);
		1013	coro->args = newAV ();
931		1014
932	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	1015	for (i = 1; i < items; i++)
		1016	av_push (coro->args, newSVsv (ST (i)));
		1017
933	coro->mainstack = 0; /* actual work is done inside transfer */	1018	/coro->mainstack = 0; //actual work is done inside transfer /
934	coro->stack = 0;	1019	/coro->stack = 0;/
935		1020
936	/* same as JMPENV_BOOTSTRAP */	1021	hv = newHV ();
937	/* 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;
938	Zero(&coro->start_env, 1, JMPENV);	1023	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
939	coro->start_env.je_ret = -1;	1024	}
940	coro->start_env.je_mustcatch = TRUE;
941
942	RETVAL = coro;
943	OUTPUT:	1025	OUTPUT:
944	RETVAL	1026	RETVAL
945		1027
946	void	1028	void
947	transfer(prev, next, flags)	1029	transfer(prev, next, flags)
948	SV *prev	1030	SV *prev
949	SV *next	1031	SV *next
950	int flags	1032	int flags
951	PROTOTYPE: @
952	CODE:	1033	CODE:
953	PUTBACK;	1034	PUTBACK;
954	SV_CORO (next, "Coro::transfer");	1035	SV_CORO (next, "Coro::transfer");
955	SV_CORO (prev, "Coro::transfer");	1036	SV_CORO (prev, "Coro::transfer");
956	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	1037	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
957	SPAGAIN;	1038	SPAGAIN;
958		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
959	void	1060	void
960	DESTROY(coro)	1061	_clone_state_from (SV dst, SV src)
961	Coro::State coro	1062	CODE:
962	CODE:	1063	{
		1064	struct coro *coro_src = SvSTATE (src);
963		1065
964	if (coro->mainstack && coro->mainstack != main_mainstack)	1066	sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
965	{
966	struct coro temp;
967		1067
968	PUTBACK;	1068	++coro_src->refcnt;
969	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;
970	LOAD(aTHX_ coro);	1070	}
971	SPAGAIN;
972
973	destroy_stacks (aTHX);
974
975	LOAD((&temp)); /* this will get rid of defsv etc.. */
976	SPAGAIN;
977
978	coro->mainstack = 0;
979	}
980
981	deallocate_stack (coro);
982
983	Safefree (coro);
984		1071
985	void	1072	void
986	flush()
987	CODE:
988	#ifdef MAY_FLUSH
989	flush_padlist_cache ();
990	#endif
991
992	void
993	_exit(code)	1073	_exit (code)
994	int code	1074	int code
995	PROTOTYPE: $	1075	PROTOTYPE: $
996	CODE:	1076	CODE:
997	#if defined(__GLIBC__) \|\| _POSIX_C_SOURCE
998	_exit (code);	1077	_exit (code);
999	#else
1000	signal (SIGTERM, SIG_DFL);
1001	raise (SIGTERM);
1002	exit (code);
1003	#endif
1004		1078
1005	MODULE = Coro::State PACKAGE = Coro::Cont	1079	MODULE = Coro::State PACKAGE = Coro::Cont
1006		1080
1007	# this is slightly dirty (should expose a c-level api)
1008
1009	void	1081	void
1010	yield(...)	1082	yield (...)
1011	PROTOTYPE: @	1083	PROTOTYPE: @
1012	CODE:	1084	CODE:
1013	static SV *returnstk;	1085	SV *yieldstack;
1014	SV *sv;	1086	SV *sv;
1015	AV *defav = GvAV (PL_defgv);	1087	AV *defav = GvAV (PL_defgv);
1016	struct coro prev, next;	1088	struct coro prev, next;
1017		1089
1018	if (!returnstk)	1090	yieldstack = *hv_fetch (
1019	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1091	(HV *)SvRV (GvSV (coro_current)),
		1092	"yieldstack", sizeof ("yieldstack") - 1,
		1093	0
		1094	);
1020		1095
1021	/* set up @_ -- ugly */	1096	/* set up @_ -- ugly */
1022	av_clear (defav);	1097	av_clear (defav);
1023	av_fill (defav, items - 1);	1098	av_fill (defav, items - 1);
1024	while (items--)	1099	while (items--)
1025	av_store (defav, items, SvREFCNT_inc (ST(items)));	1100	av_store (defav, items, SvREFCNT_inc (ST(items)));
1026		1101
1027	mg_get (returnstk); /* isn't documentation wrong for mg_get? */
1028	sv = av_pop ((AV *)SvRV (returnstk));	1102	sv = av_pop ((AV *)SvRV (yieldstack));
1029	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)));
1030	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)));
1031	SvREFCNT_dec (sv);	1105	SvREFCNT_dec (sv);
1032		1106
1033	transfer(aTHX_ prev, next, 0);	1107	coro_state_transfer (aTHX_ prev, next, 0);
1034		1108
1035	MODULE = Coro::State PACKAGE = Coro	1109	MODULE = Coro::State PACKAGE = Coro
1036
1037	# this is slightly dirty (should expose a c-level api)
1038		1110
1039	BOOT:	1111	BOOT:
1040	{	1112	{
1041	int i;	1113	int i;
1042	HV *stash = gv_stashpv ("Coro", TRUE);	1114	HV *stash = gv_stashpv ("Coro", TRUE);
…		…
1062	coroapi.ready = api_ready;	1134	coroapi.ready = api_ready;
1063	coroapi.nready = &coro_nready;	1135	coroapi.nready = &coro_nready;
1064	coroapi.current = coro_current;	1136	coroapi.current = coro_current;
1065		1137
1066	GCoroAPI = &coroapi;	1138	GCoroAPI = &coroapi;
1067	sv_setiv(sv, (IV)&coroapi);	1139	sv_setiv (sv, (IV)&coroapi);
1068	SvREADONLY_on(sv);	1140	SvREADONLY_on (sv);
1069	}	1141	}
1070	}	1142	}
1071		1143
		1144	#if !PERL_MICRO
		1145
1072	void	1146	void
1073	ready(self)	1147	ready (self)
1074	SV * self	1148	SV * self
1075	PROTOTYPE: $	1149	PROTOTYPE: $
1076	CODE:	1150	CODE:
1077	api_ready (self);	1151	api_ready (self);
1078		1152
		1153	#endif
		1154
1079	int	1155	int
1080	nready(...)	1156	nready (...)
1081	PROTOTYPE:	1157	PROTOTYPE:
1082	CODE:	1158	CODE:
1083	RETVAL = coro_nready;	1159	RETVAL = coro_nready;
1084	OUTPUT:	1160	OUTPUT:
1085	RETVAL	1161	RETVAL
1086		1162
1087	void	1163	void
1088	schedule(...)	1164	schedule (...)
1089	PROTOTYPE:	1165	PROTOTYPE:
1090	CODE:	1166	CODE:
1091	api_schedule ();	1167	api_schedule ();
1092		1168
1093	void	1169	void
1094	cede(...)	1170	cede (...)
1095	PROTOTYPE:	1171	PROTOTYPE:
1096	CODE:	1172	CODE:
1097	api_cede ();	1173	api_cede ();
1098		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 1.45 by root, Tue May 27 01:15:31 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 1.45 by root, Tue May 27 01:15:31 2003 UTC vs.
Revision 1.87 by root, Fri Nov 24 13:40:36 2006 UTC