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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.176 by root, Sun Sep 30 13:50:38 2007 UTC vs.
Revision 1.238 by root, Sat May 31 12:10:55 2008 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
2		2
3	#define PERL_NO_GET_CONTEXT	3	#define PERL_NO_GET_CONTEXT
		4	#define PERL_EXT
4		5
5	#include "EXTERN.h"	6	#include "EXTERN.h"
6	#include "perl.h"	7	#include "perl.h"
7	#include "XSUB.h"	8	#include "XSUB.h"
8		9
9	#include "patchlevel.h"	10	#include "patchlevel.h"
10		11
11	#include <stdio.h>	12	#include <stdio.h>
12	#include <errno.h>	13	#include <errno.h>
13	#include <assert.h>	14	#include <assert.h>
		15
		16	#ifdef WIN32
		17	# undef setjmp
		18	# undef longjmp
		19	# undef _exit
		20	# define setjmp _setjmp // deep magic, don't ask
		21	#else
		22	# include <inttypes.h> /* most portable stdint.h */
		23	#endif
14		24
15	#ifdef HAVE_MMAP	25	#ifdef HAVE_MMAP
16	# include <unistd.h>	26	# include <unistd.h>
17	# include <sys/mman.h>	27	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	28	# ifndef MAP_ANONYMOUS
70	# ifndef IS_PADCONST	80	# ifndef IS_PADCONST
71	# define IS_PADCONST(v) 0	81	# define IS_PADCONST(v) 0
72	# endif	82	# endif
73	#endif	83	#endif
74		84
		85	/* 5.8.8 */
		86	#ifndef GV_NOTQUAL
		87	# define GV_NOTQUAL 0
		88	#endif
		89	#ifndef newSV
		90	# define newSV(l) NEWSV(0,l)
		91	#endif
		92
		93	/* 5.11 */
		94	#ifndef CxHASARGS
		95	# define CxHASARGS(cx) (cx)->blk_sub.hasargs
		96	#endif
		97
75	/* 5.8.7 */	98	/* 5.8.7 */
76	#ifndef SvRV_set	99	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	100	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	101	#endif
79		102
…		…
98	#define IN_DESTRUCT (PL_main_cv == Nullcv)	121	#define IN_DESTRUCT (PL_main_cv == Nullcv)
99		122
100	#if __GNUC__ >= 3	123	#if __GNUC__ >= 3
101	# define attribute(x) __attribute__(x)	124	# define attribute(x) __attribute__(x)
102	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	125	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		126	# define expect(expr,value) __builtin_expect ((expr),(value))
103	#else	127	#else
104	# define attribute(x)	128	# define attribute(x)
105	# define BARRIER	129	# define BARRIER
		130	# define expect(expr,value) (expr)
106	#endif	131	#endif
		132
		133	#define expect_false(expr) expect ((expr) != 0, 0)
		134	#define expect_true(expr) expect ((expr) != 0, 1)
107		135
108	#define NOINLINE attribute ((noinline))	136	#define NOINLINE attribute ((noinline))
109		137
110	#include "CoroAPI.h"	138	#include "CoroAPI.h"
111		139
…		…
130	static size_t coro_stacksize = CORO_STACKSIZE;	158	static size_t coro_stacksize = CORO_STACKSIZE;
131	static struct CoroAPI coroapi;	159	static struct CoroAPI coroapi;
132	static AV main_mainstack; / used to differentiate between $main and others */	160	static AV main_mainstack; / used to differentiate between $main and others */
133	static JMPENV *main_top_env;	161	static JMPENV *main_top_env;
134	static HV coro_state_stash, coro_stash;	162	static HV coro_state_stash, coro_stash;
135	static SV coro_mortal; / will be freed after next transfer */	163	static volatile SV coro_mortal; / will be freed after next transfer */
		164
		165	static GV irsgv; / $/ */
		166	static GV stdoutgv; / STDOUT /
		167	static SV *rv_diehook;
		168	static SV *rv_warnhook;
		169	static HV hv_sig; / %SIG */
136		170
137	/* async_pool helper stuff */	171	/* async_pool helper stuff */
138	static SV *sv_pool_rss;	172	static SV *sv_pool_rss;
139	static SV *sv_pool_size;	173	static SV *sv_pool_size;
140	static AV *av_async_pool;	174	static AV *av_async_pool;
		175
		176	/* Coro::AnyEvent */
		177	static SV *sv_activity;
141		178
142	static struct coro_cctx *cctx_first;	179	static struct coro_cctx *cctx_first;
143	static int cctx_count, cctx_idle;	180	static int cctx_count, cctx_idle;
144		181
145	enum {	182	enum {
…		…
176	CF_READY = 0x0002, /* coroutine is ready */	213	CF_READY = 0x0002, /* coroutine is ready */
177	CF_NEW = 0x0004, /* has never been switched to */	214	CF_NEW = 0x0004, /* has never been switched to */
178	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	215	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
179	};	216	};
180		217
		218	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		219	typedef struct {
		220	SV *defsv;
		221	AV *defav;
		222	SV *errsv;
		223	SV *irsgv;
		224	#define VAR(name,type) type name;
		225	# include "state.h"
		226	#undef VAR
		227	} perl_slots;
		228
		229	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		230
181	/* this is a structure representing a perl-level coroutine */	231	/* this is a structure representing a perl-level coroutine */
182	struct coro {	232	struct coro {
183	/* the c coroutine allocated to this perl coroutine, if any */	233	/* the c coroutine allocated to this perl coroutine, if any */
184	coro_cctx *cctx;	234	coro_cctx *cctx;
185		235
		236	/* process data */
		237	AV *mainstack;
		238	perl_slots slot; / basically the saved sp */
		239
186	/* data associated with this coroutine (initial args) */	240	AV args; / data associated with this coroutine (initial args) */
187	AV *args;	241	int refcnt; /* coroutines are refcounted, yes */
188	int refcnt;
189	int save; /* CORO_SAVE flags */
190	int flags; /* CF_ flags */	242	int flags; /* CF_ flags */
191		243	HV hv; / the perl hash associated with this coro, if any */
192	/* optionally saved, might be zero */
193	AV defav; / @_ */
194	SV defsv; / $_ */
195	SV errsv; / $@ */
196	GV deffh; / default filehandle */
197	SV irssv; / $/ */
198	SV irssv_sv; / real $/ cache */
199
200	#define VAR(name,type) type name;
201	# include "state.h"
202	#undef VAR
203		244
204	/* statistics */	245	/* statistics */
205	int usecount; /* number of switches to this coro */	246	int usecount; /* number of transfers to this coro */
206		247
207	/* coro process data */	248	/* coro process data */
208	int prio;	249	int prio;
		250	SV throw; / exception to be thrown */
		251
		252	/* async_pool */
		253	SV *saved_deffh;
209		254
210	/* linked list */	255	/* linked list */
211	struct coro next, prev;	256	struct coro next, prev;
212	HV hv; / the perl hash associated with this coro, if any */
213	};	257	};
214		258
215	typedef struct coro *Coro__State;	259	typedef struct coro *Coro__State;
216	typedef struct coro *Coro__State_or_hashref;	260	typedef struct coro *Coro__State_or_hashref;
217		261
…		…
224	#define PRIO_IDLE -3	268	#define PRIO_IDLE -3
225	#define PRIO_MIN -4	269	#define PRIO_MIN -4
226		270
227	/* for Coro.pm */	271	/* for Coro.pm */
228	static SV *coro_current;	272	static SV *coro_current;
		273	static SV *coro_readyhook;
229	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	274	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
230	static int coro_nready;	275	static int coro_nready;
231	static struct coro *coro_first;	276	static struct coro *coro_first;
232		277
233	/ lowlevel stuff ********************************************************/	278	/ lowlevel stuff ********************************************************/
234		279
		280	static SV *
		281	coro_get_sv (pTHX_ const char *name, int create)
		282	{
		283	#if PERL_VERSION_ATLEAST (5,10,0)
		284	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		285	get_sv (name, create);
		286	#endif
		287	return get_sv (name, create);
		288	}
		289
		290	static AV *
		291	coro_get_av (pTHX_ const char *name, int create)
		292	{
		293	#if PERL_VERSION_ATLEAST (5,10,0)
		294	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		295	get_av (name, create);
		296	#endif
		297	return get_av (name, create);
		298	}
		299
		300	static HV *
		301	coro_get_hv (pTHX_ const char *name, int create)
		302	{
		303	#if PERL_VERSION_ATLEAST (5,10,0)
		304	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		305	get_hv (name, create);
		306	#endif
		307	return get_hv (name, create);
		308	}
		309
235	static AV *	310	static AV *
236	coro_clone_padlist (pTHX_ CV *cv)	311	coro_clone_padlist (pTHX_ CV *cv)
237	{	312	{
238	AV *padlist = CvPADLIST (cv);	313	AV *padlist = CvPADLIST (cv);
239	AV newpadlist, newpad;	314	AV newpadlist, newpad;
240		315
241	newpadlist = newAV ();	316	newpadlist = newAV ();
242	AvREAL_off (newpadlist);	317	AvREAL_off (newpadlist);
243	#if PERL_VERSION_ATLEAST (5,9,0)	318	#if PERL_VERSION_ATLEAST (5,10,0)
244	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);	319	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
245	#else	320	#else
246	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	321	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
247	#endif	322	#endif
248	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	323	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
…		…
286		361
287	/* casting is fun. */	362	/* casting is fun. */
288	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	363	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
289	free_padlist (aTHX_ padlist);	364	free_padlist (aTHX_ padlist);
290		365
291	SvREFCNT_dec (av);
292
293	return 0;	366	return 0;
294	}	367	}
295		368
296	#define PERL_MAGIC_coro PERL_MAGIC_ext	369	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		370	#define CORO_MAGIC_type_state PERL_MAGIC_ext
297		371
298	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	372	static MGVTBL coro_cv_vtbl = {
		373	0, 0, 0, 0,
		374	coro_cv_free
		375	};
299		376
300	#define CORO_MAGIC(cv) \	377	#define CORO_MAGIC(sv,type) \
301	SvMAGIC (cv) \	378	SvMAGIC (sv) \
302	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	379	? SvMAGIC (sv)->mg_type == type \
303	? SvMAGIC (cv) \	380	? SvMAGIC (sv) \
304	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	381	: mg_find (sv, type) \
305	: 0	382	: 0
		383
		384	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		385	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
306		386
307	static struct coro *	387	static struct coro *
308	SvSTATE_ (pTHX_ SV *coro)	388	SvSTATE_ (pTHX_ SV *coro)
309	{	389	{
310	HV *stash;	390	HV *stash;
311	MAGIC *mg;	391	MAGIC *mg;
312		392
313	if (SvROK (coro))	393	if (SvROK (coro))
314	coro = SvRV (coro);	394	coro = SvRV (coro);
315		395
316	if (SvTYPE (coro) != SVt_PVHV)	396	if (expect_false (SvTYPE (coro) != SVt_PVHV))
317	croak ("Coro::State object required");	397	croak ("Coro::State object required");
318		398
319	stash = SvSTASH (coro);	399	stash = SvSTASH (coro);
320	if (stash != coro_stash && stash != coro_state_stash)	400	if (expect_false (stash != coro_stash && stash != coro_state_stash))
321	{	401	{
322	/* very slow, but rare, check */	402	/* very slow, but rare, check */
323	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	403	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
324	croak ("Coro::State object required");	404	croak ("Coro::State object required");
325	}	405	}
326		406
327	mg = CORO_MAGIC (coro);	407	mg = CORO_MAGIC_state (coro);
328	return (struct coro *)mg->mg_ptr;	408	return (struct coro *)mg->mg_ptr;
329	}	409	}
330		410
331	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))	411	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
332		412
333	/* the next two functions merely cache the padlists */	413	/* the next two functions merely cache the padlists */
334	static void	414	static void
335	get_padlist (pTHX_ CV *cv)	415	get_padlist (pTHX_ CV *cv)
336	{	416	{
337	MAGIC *mg = CORO_MAGIC (cv);	417	MAGIC *mg = CORO_MAGIC_cv (cv);
338	AV *av;	418	AV *av;
339		419
340	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	420	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
341	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	421	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
342	else	422	else
343	{	423	{
344	#if CORO_PREFER_PERL_FUNCTIONS	424	#if CORO_PREFER_PERL_FUNCTIONS
345	/* this is probably cleaner, but also slower? */	425	/* this is probably cleaner, but also slower? */
…		…
354	}	434	}
355		435
356	static void	436	static void
357	put_padlist (pTHX_ CV *cv)	437	put_padlist (pTHX_ CV *cv)
358	{	438	{
359	MAGIC *mg = CORO_MAGIC (cv);	439	MAGIC *mg = CORO_MAGIC_cv (cv);
360	AV *av;	440	AV *av;
361		441
362	if (!mg)	442	if (expect_false (!mg))
363	{	443	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
364	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
365	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
366	mg->mg_virtual = &vtbl_coro;
367	mg->mg_obj = (SV *)newAV ();
368	}
369		444
370	av = (AV *)mg->mg_obj;	445	av = (AV *)mg->mg_obj;
371		446
372	if (AvFILLp (av) >= AvMAX (av))	447	if (expect_false (AvFILLp (av) >= AvMAX (av)))
373	av_extend (av, AvMAX (av) + 1);	448	av_extend (av, AvMAX (av) + 1);
374		449
375	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	450	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
376	}	451	}
377		452
378	/ load & save, init *****************************************************/	453	/ load & save, init *****************************************************/
379
380	#define SB do {
381	#define SE } while (0)
382
383	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
384		454
385	static void	455	static void
386	load_perl (pTHX_ Coro__State c)	456	load_perl (pTHX_ Coro__State c)
387	{	457	{
		458	perl_slots *slot = c->slot;
		459	c->slot = 0;
		460
		461	PL_mainstack = c->mainstack;
		462
		463	GvSV (PL_defgv) = slot->defsv;
		464	GvAV (PL_defgv) = slot->defav;
		465	GvSV (PL_errgv) = slot->errsv;
		466	GvSV (irsgv) = slot->irsgv;
		467
388	#define VAR(name,type) PL_ ## name = c->name;	468	#define VAR(name,type) PL_ ## name = slot->name;
389	# include "state.h"	469	# include "state.h"
390	#undef VAR	470	#undef VAR
391
392	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
393	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
394	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
395	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
396
397	if (c->irssv)
398	{
399	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
400	{
401	SvREFCNT_dec (c->irssv);
402	c->irssv = 0;
403	}
404	else
405	{
406	REPLACE_SV (PL_rs, c->irssv);
407	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
408	sv_setsv (c->irssv_sv, PL_rs);
409	}
410	}
411		471
412	{	472	{
413	dSP;	473	dSP;
		474
414	CV *cv;	475	CV *cv;
415		476
416	/* now do the ugly restore mess */	477	/* now do the ugly restore mess */
417	while ((cv = (CV *)POPs))	478	while (expect_true (cv = (CV *)POPs))
418	{	479	{
419	put_padlist (aTHX_ cv); /* mark this padlist as available */	480	put_padlist (aTHX_ cv); /* mark this padlist as available */
420	CvDEPTH (cv) = PTR2IV (POPs);	481	CvDEPTH (cv) = PTR2IV (POPs);
421	CvPADLIST (cv) = (AV *)POPs;	482	CvPADLIST (cv) = (AV *)POPs;
422	}	483	}
…		…
441		502
442	XPUSHs (Nullsv);	503	XPUSHs (Nullsv);
443	/* this loop was inspired by pp_caller */	504	/* this loop was inspired by pp_caller */
444	for (;;)	505	for (;;)
445	{	506	{
446	while (cxix >= 0)	507	while (expect_true (cxix >= 0))
447	{	508	{
448	PERL_CONTEXT *cx = &ccstk[cxix--];	509	PERL_CONTEXT *cx = &ccstk[cxix--];
449		510
450	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	511	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
451	{	512	{
452	CV *cv = cx->blk_sub.cv;	513	CV *cv = cx->blk_sub.cv;
453		514
454	if (CvDEPTH (cv))	515	if (expect_true (CvDEPTH (cv)))
455	{	516	{
456	EXTEND (SP, 3);	517	EXTEND (SP, 3);
457	PUSHs ((SV *)CvPADLIST (cv));	518	PUSHs ((SV *)CvPADLIST (cv));
458	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	519	PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
459	PUSHs ((SV *)cv);	520	PUSHs ((SV *)cv);
460		521
461	CvDEPTH (cv) = 0;	522	CvDEPTH (cv) = 0;
462	get_padlist (aTHX_ cv);	523	get_padlist (aTHX_ cv);
463	}	524	}
464	}	525	}
465	}	526	}
466		527
467	if (top_si->si_type == PERLSI_MAIN)	528	if (expect_true (top_si->si_type == PERLSI_MAIN))
468	break;	529	break;
469		530
470	top_si = top_si->si_prev;	531	top_si = top_si->si_prev;
471	ccstk = top_si->si_cxstack;	532	ccstk = top_si->si_cxstack;
472	cxix = top_si->si_cxix;	533	cxix = top_si->si_cxix;
473	}	534	}
474		535
475	PUTBACK;	536	PUTBACK;
476	}	537	}
477		538
478	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	539	/* allocate some space on the context stack for our purposes */
479	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	540	/* we manually unroll here, as usually 2 slots is enough */
480	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	541	if (SLOT_COUNT >= 1) CXINC;
481	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	542	if (SLOT_COUNT >= 2) CXINC;
482	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	543	if (SLOT_COUNT >= 3) CXINC;
		544	{
		545	int i;
		546	for (i = 3; i < SLOT_COUNT; ++i)
		547	CXINC;
		548	}
		549	cxstack_ix -= SLOT_COUNT; /* undo allocation */
483		550
		551	c->mainstack = PL_mainstack;
		552
		553	{
		554	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		555
		556	slot->defav = GvAV (PL_defgv);
		557	slot->defsv = DEFSV;
		558	slot->errsv = ERRSV;
		559	slot->irsgv = GvSV (irsgv);
		560
484	#define VAR(name,type)c->name = PL_ ## name;	561	#define VAR(name,type) slot->name = PL_ ## name;
485	# include "state.h"	562	# include "state.h"
486	#undef VAR	563	#undef VAR
		564	}
487	}	565	}
488		566
489	/*	567	/*
490	* allocate various perl stacks. This is an exact copy	568	* allocate various perl stacks. This is an exact copy
491	* of perl.c:init_stacks, except that it uses less memory	569	* of perl.c:init_stacks, except that it uses less memory
…		…
496	# define coro_init_stacks init_stacks	574	# define coro_init_stacks init_stacks
497	#else	575	#else
498	static void	576	static void
499	coro_init_stacks (pTHX)	577	coro_init_stacks (pTHX)
500	{	578	{
501	PL_curstackinfo = new_stackinfo(64, 6);	579	PL_curstackinfo = new_stackinfo(32, 8);
502	PL_curstackinfo->si_type = PERLSI_MAIN;	580	PL_curstackinfo->si_type = PERLSI_MAIN;
503	PL_curstack = PL_curstackinfo->si_stack;	581	PL_curstack = PL_curstackinfo->si_stack;
504	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	582	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
505		583
506	PL_stack_base = AvARRAY(PL_curstack);	584	PL_stack_base = AvARRAY(PL_curstack);
507	PL_stack_sp = PL_stack_base;	585	PL_stack_sp = PL_stack_base;
508	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	586	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
509		587
510	New(50,PL_tmps_stack,64,SV*);	588	New(50,PL_tmps_stack,32,SV*);
511	PL_tmps_floor = -1;	589	PL_tmps_floor = -1;
512	PL_tmps_ix = -1;	590	PL_tmps_ix = -1;
513	PL_tmps_max = 64;	591	PL_tmps_max = 32;
514		592
515	New(54,PL_markstack,16,I32);	593	New(54,PL_markstack,16,I32);
516	PL_markstack_ptr = PL_markstack;	594	PL_markstack_ptr = PL_markstack;
517	PL_markstack_max = PL_markstack + 16;	595	PL_markstack_max = PL_markstack + 16;
518		596
519	#ifdef SET_MARK_OFFSET	597	#ifdef SET_MARK_OFFSET
520	SET_MARK_OFFSET;	598	SET_MARK_OFFSET;
521	#endif	599	#endif
522		600
523	New(54,PL_scopestack,16,I32);	601	New(54,PL_scopestack,8,I32);
524	PL_scopestack_ix = 0;	602	PL_scopestack_ix = 0;
525	PL_scopestack_max = 16;	603	PL_scopestack_max = 8;
526		604
527	New(54,PL_savestack,64,ANY);	605	New(54,PL_savestack,24,ANY);
528	PL_savestack_ix = 0;	606	PL_savestack_ix = 0;
529	PL_savestack_max = 64;	607	PL_savestack_max = 24;
530		608
531	#if !PERL_VERSION_ATLEAST (5,9,0)	609	#if !PERL_VERSION_ATLEAST (5,10,0)
532	New(54,PL_retstack,4,OP*);	610	New(54,PL_retstack,4,OP*);
533	PL_retstack_ix = 0;	611	PL_retstack_ix = 0;
534	PL_retstack_max = 4;	612	PL_retstack_max = 4;
535	#endif	613	#endif
536	}	614	}
…		…
540	* destroy the stacks, the callchain etc...	618	* destroy the stacks, the callchain etc...
541	*/	619	*/
542	static void	620	static void
543	coro_destroy_stacks (pTHX)	621	coro_destroy_stacks (pTHX)
544	{	622	{
545	if (!IN_DESTRUCT)
546	{
547	/* restore all saved variables and stuff */
548	LEAVE_SCOPE (0);
549	assert (PL_tmps_floor == -1);
550
551	/* free all temporaries */
552	FREETMPS;
553	assert (PL_tmps_ix == -1);
554
555	/* unwind all extra stacks */
556	POPSTACK_TO (PL_mainstack);
557
558	/* unwind main stack */
559	dounwind (-1);
560	}
561
562	while (PL_curstackinfo->si_next)	623	while (PL_curstackinfo->si_next)
563	PL_curstackinfo = PL_curstackinfo->si_next;	624	PL_curstackinfo = PL_curstackinfo->si_next;
564		625
565	while (PL_curstackinfo)	626	while (PL_curstackinfo)
566	{	627	{
…		…
576		637
577	Safefree (PL_tmps_stack);	638	Safefree (PL_tmps_stack);
578	Safefree (PL_markstack);	639	Safefree (PL_markstack);
579	Safefree (PL_scopestack);	640	Safefree (PL_scopestack);
580	Safefree (PL_savestack);	641	Safefree (PL_savestack);
581	#if !PERL_VERSION_ATLEAST (5,9,0)	642	#if !PERL_VERSION_ATLEAST (5,10,0)
582	Safefree (PL_retstack);	643	Safefree (PL_retstack);
583	#endif	644	#endif
584	}	645	}
585		646
586	static size_t	647	static size_t
587	coro_rss (pTHX_ struct coro *coro)	648	coro_rss (pTHX_ struct coro *coro)
588	{	649	{
589	size_t rss = sizeof (coro);	650	size_t rss = sizeof (*coro);
590		651
591	if (coro->mainstack)	652	if (coro->mainstack)
592	{	653	{
		654	perl_slots tmp_slot;
		655	perl_slots *slot;
		656
593	if (coro->flags & CF_RUNNING)	657	if (coro->flags & CF_RUNNING)
594	{	658	{
		659	slot = &tmp_slot;
		660
595	#define VAR(name,type)coro->name = PL_ ## name;	661	#define VAR(name,type) slot->name = PL_ ## name;
596	# include "state.h"	662	# include "state.h"
597	#undef VAR	663	#undef VAR
598	}	664	}
		665	else
		666	slot = coro->slot;
599		667
600	rss += sizeof (coro->curstackinfo);	668	rss += sizeof (slot->curstackinfo);
601	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
602	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);	669	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
603	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);	670	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
604	rss += coro->tmps_max * sizeof (SV *);	671	rss += slot->tmps_max * sizeof (SV *);
605	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);	672	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
606	rss += coro->scopestack_max * sizeof (I32);	673	rss += slot->scopestack_max * sizeof (I32);
607	rss += coro->savestack_max * sizeof (ANY);	674	rss += slot->savestack_max * sizeof (ANY);
608		675
609	#if !PERL_VERSION_ATLEAST (5,9,0)	676	#if !PERL_VERSION_ATLEAST (5,10,0)
610	rss += coro->retstack_max * sizeof (OP *);	677	rss += slot->retstack_max * sizeof (OP *);
611	#endif	678	#endif
612	}	679	}
613		680
614	return rss;	681	return rss;
615	}	682	}
616		683
617	/ coroutine stack handling **********************************************/	684	/ coroutine stack handling **********************************************/
618		685
		686	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		687	static int (orig_sigelem_set) (pTHX_ SV sv, MAGIC *mg);
		688
		689	/* apparently < 5.8.8 */
		690	#undef MgPV_nolen_const
		691	#ifndef MgPV_nolen_const
		692	#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
		693	SvPV_nolen_const((SV*)((mg)->mg_ptr)) : \
		694	(const char*)(mg)->mg_ptr)
		695	#endif
		696
		697	/*
		698	* This overrides the default magic get method of %SIG elements.
		699	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		700	* and instead of tryign to save and restore the hash elements, we just provide
		701	* readback here.
		702	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		703	* not expecting this to actually change the hook. This is a potential problem
		704	* when a schedule happens then, but we ignore this.
		705	*/
		706	static int
		707	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		708	{
		709	const char *s = MgPV_nolen_const (mg);
		710
		711	if (*s == '_')
		712	{
		713	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		714	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		715	}
		716
		717	return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
		718	}
		719
		720	static int
		721	coro_sigelem_set (pTHX_ SV sv, MAGIC mg)
		722	{
		723	const char *s = MgPV_nolen_const (mg);
		724
		725	if (*s == '_')
		726	{
		727	SV **svp = 0;
		728
		729	if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
		730	if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
		731
		732	if (svp)
		733	{
		734	SV old = svp;
		735	*svp = newSVsv (sv);
		736	SvREFCNT_dec (old);
		737	return 0;
		738	}
		739	}
		740
		741	return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
		742	}
		743
619	static void	744	static void
620	setup_coro (pTHX_ struct coro *coro)	745	coro_setup (pTHX_ struct coro *coro)
621	{	746	{
622	/*	747	/*
623	* emulate part of the perl startup here.	748	* emulate part of the perl startup here.
624	*/	749	*/
625	coro_init_stacks (aTHX);	750	coro_init_stacks (aTHX);
…		…
627	PL_runops = RUNOPS_DEFAULT;	752	PL_runops = RUNOPS_DEFAULT;
628	PL_curcop = &PL_compiling;	753	PL_curcop = &PL_compiling;
629	PL_in_eval = EVAL_NULL;	754	PL_in_eval = EVAL_NULL;
630	PL_comppad = 0;	755	PL_comppad = 0;
631	PL_curpm = 0;	756	PL_curpm = 0;
		757	PL_curpad = 0;
632	PL_localizing = 0;	758	PL_localizing = 0;
633	PL_dirty = 0;	759	PL_dirty = 0;
634	PL_restartop = 0;	760	PL_restartop = 0;
		761	#if PERL_VERSION_ATLEAST (5,10,0)
		762	PL_parser = 0;
		763	#endif
		764
		765	/* recreate the die/warn hooks */
		766	PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
		767	PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
		768
		769	GvSV (PL_defgv) = newSV (0);
		770	GvAV (PL_defgv) = coro->args; coro->args = 0;
		771	GvSV (PL_errgv) = newSV (0);
		772	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		773	PL_rs = newSVsv (GvSV (irsgv));
		774	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
635		775
636	{	776	{
637	dSP;	777	dSP;
638	LOGOP myop;	778	LOGOP myop;
639		779
640	SvREFCNT_dec (GvAV (PL_defgv));
641	GvAV (PL_defgv) = coro->args; coro->args = 0;
642
643	Zero (&myop, 1, LOGOP);	780	Zero (&myop, 1, LOGOP);
644	myop.op_next = Nullop;	781	myop.op_next = Nullop;
645	myop.op_flags = OPf_WANT_VOID;	782	myop.op_flags = OPf_WANT_VOID;
646		783
647	PUSHMARK (SP);	784	PUSHMARK (SP);
648	XPUSHs (av_shift (GvAV (PL_defgv)));	785	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
649	PUTBACK;	786	PUTBACK;
650	PL_op = (OP *)&myop;	787	PL_op = (OP *)&myop;
651	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	788	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
652	SPAGAIN;	789	SPAGAIN;
653	}	790	}
654		791
655	ENTER; /* necessary e.g. for dounwind */	792	/* this newly created coroutine might be run on an existing cctx which most
		793	* likely was suspended in set_stacklevel, called from entersub.
		794	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		795	* so we ENTER here for symmetry
		796	*/
		797	ENTER;
		798	}
		799
		800	static void
		801	coro_destroy (pTHX_ struct coro *coro)
		802	{
		803	if (!IN_DESTRUCT)
		804	{
		805	/* restore all saved variables and stuff */
		806	LEAVE_SCOPE (0);
		807	assert (PL_tmps_floor == -1);
		808
		809	/* free all temporaries */
		810	FREETMPS;
		811	assert (PL_tmps_ix == -1);
		812
		813	/* unwind all extra stacks */
		814	POPSTACK_TO (PL_mainstack);
		815
		816	/* unwind main stack */
		817	dounwind (-1);
		818	}
		819
		820	SvREFCNT_dec (GvSV (PL_defgv));
		821	SvREFCNT_dec (GvAV (PL_defgv));
		822	SvREFCNT_dec (GvSV (PL_errgv));
		823	SvREFCNT_dec (PL_defoutgv);
		824	SvREFCNT_dec (PL_rs);
		825	SvREFCNT_dec (GvSV (irsgv));
		826
		827	SvREFCNT_dec (PL_diehook);
		828	SvREFCNT_dec (PL_warnhook);
		829
		830	SvREFCNT_dec (coro->saved_deffh);
		831	SvREFCNT_dec (coro->throw);
		832
		833	coro_destroy_stacks (aTHX);
656	}	834	}
657		835
658	static void	836	static void
659	free_coro_mortal (pTHX)	837	free_coro_mortal (pTHX)
660	{	838	{
661	if (coro_mortal)	839	if (expect_true (coro_mortal))
662	{	840	{
663	SvREFCNT_dec (coro_mortal);	841	SvREFCNT_dec (coro_mortal);
664	coro_mortal = 0;	842	coro_mortal = 0;
665	}	843	}
666	}	844	}
…		…
695	bot = PL_stack_base + cx->blk_oldsp + 1;	873	bot = PL_stack_base + cx->blk_oldsp + 1;
696	top = cx->blk_gimme == G_ARRAY ? SP + 1	874	top = cx->blk_gimme == G_ARRAY ? SP + 1
697	: cx->blk_gimme == G_SCALAR ? bot + 1	875	: cx->blk_gimme == G_SCALAR ? bot + 1
698	: bot;	876	: bot;
699		877
		878	av_extend (av, top - bot);
700	while (bot < top)	879	while (bot < top)
701	av_push (av, SvREFCNT_inc (*bot++));	880	av_push (av, SvREFCNT_inc (*bot++));
702		881
703	PL_runops = RUNOPS_DEFAULT;	882	PL_runops = RUNOPS_DEFAULT;
704	ENTER;	883	ENTER;
…		…
744	SAVETMPS;	923	SAVETMPS;
745	EXTEND (SP, 3);	924	EXTEND (SP, 3);
746	PUSHMARK (SP);	925	PUSHMARK (SP);
747	PUSHs (&PL_sv_yes);	926	PUSHs (&PL_sv_yes);
748	PUSHs (fullname);	927	PUSHs (fullname);
749	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);	928	PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
750	PUTBACK;	929	PUTBACK;
751	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);	930	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
752	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	931	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
753	SPAGAIN;	932	SPAGAIN;
754	FREETMPS;	933	FREETMPS;
…		…
790		969
791	/* inject a fake call to Coro::State::_cctx_init into the execution */	970	/* inject a fake call to Coro::State::_cctx_init into the execution */
792	/* _cctx_init should be careful, as it could be called at almost any time */	971	/* _cctx_init should be careful, as it could be called at almost any time */
793	/* during execution of a perl program */	972	/* during execution of a perl program */
794	static void NOINLINE	973	static void NOINLINE
795	prepare_cctx (pTHX_ coro_cctx *cctx)	974	cctx_prepare (pTHX_ coro_cctx *cctx)
796	{	975	{
797	dSP;	976	dSP;
798	LOGOP myop;	977	LOGOP myop;
799		978
800	PL_top_env = &PL_start_env;	979	PL_top_env = &PL_start_env;
…		…
818		997
819	/*	998	/*
820	* this is a _very_ stripped down perl interpreter ;)	999	* this is a _very_ stripped down perl interpreter ;)
821	*/	1000	*/
822	static void	1001	static void
823	coro_run (void *arg)	1002	cctx_run (void *arg)
824	{	1003	{
825	dTHX;	1004	dTHX;
826		1005
827	/* coro_run is the alternative tail of transfer(), so unlock here. */	1006	/* cctx_run is the alternative tail of transfer(), so unlock here. */
828	UNLOCK;	1007	UNLOCK;
829		1008
830	/* we now skip the entersub that lead to transfer() */	1009	/* we now skip the entersub that lead to transfer() */
831	PL_op = PL_op->op_next;	1010	PL_op = PL_op->op_next;
832		1011
833	/* inject a fake subroutine call to cctx_init */	1012	/* inject a fake subroutine call to cctx_init */
834	prepare_cctx (aTHX_ (coro_cctx *)arg);	1013	cctx_prepare (aTHX_ (coro_cctx *)arg);
835		1014
836	/* somebody or something will hit me for both perl_run and PL_restartop */	1015	/* somebody or something will hit me for both perl_run and PL_restartop */
837	PL_restartop = PL_op;	1016	PL_restartop = PL_op;
838	perl_run (PL_curinterp);	1017	perl_run (PL_curinterp);
839		1018
…		…
858	++cctx_count;	1037	++cctx_count;
859		1038
860	Newz (0, cctx, 1, coro_cctx);	1039	Newz (0, cctx, 1, coro_cctx);
861		1040
862	#if HAVE_MMAP	1041	#if HAVE_MMAP
863
864	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	1042	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
865	/* mmap supposedly does allocate-on-write for us */	1043	/* mmap supposedly does allocate-on-write for us */
866	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	1044	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
867		1045
868	if (cctx->sptr != (void *)-1)	1046	if (cctx->sptr != (void *)-1)
…		…
889	stack_start = cctx->sptr;	1067	stack_start = cctx->sptr;
890	stack_size = cctx->ssize;	1068	stack_size = cctx->ssize;
891	}	1069	}
892		1070
893	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1071	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
894	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1072	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
895		1073
896	return cctx;	1074	return cctx;
897	}	1075	}
898		1076
899	static void	1077	static void
…		…
916	Safefree (cctx->sptr);	1094	Safefree (cctx->sptr);
917		1095
918	Safefree (cctx);	1096	Safefree (cctx);
919	}	1097	}
920		1098
		1099	/* wether this cctx should be destructed */
		1100	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1101
921	static coro_cctx *	1102	static coro_cctx *
922	cctx_get (pTHX)	1103	cctx_get (pTHX)
923	{	1104	{
924	while (cctx_first)	1105	while (expect_true (cctx_first))
925	{	1106	{
926	coro_cctx *cctx = cctx_first;	1107	coro_cctx *cctx = cctx_first;
927	cctx_first = cctx->next;	1108	cctx_first = cctx->next;
928	--cctx_idle;	1109	--cctx_idle;
929		1110
930	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))	1111	if (expect_true (!CCTX_EXPIRED (cctx)))
931	return cctx;	1112	return cctx;
932		1113
933	cctx_destroy (cctx);	1114	cctx_destroy (cctx);
934	}	1115	}
935		1116
…		…
938		1119
939	static void	1120	static void
940	cctx_put (coro_cctx *cctx)	1121	cctx_put (coro_cctx *cctx)
941	{	1122	{
942	/* free another cctx if overlimit */	1123	/* free another cctx if overlimit */
943	if (cctx_idle >= MAX_IDLE_CCTX)	1124	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
944	{	1125	{
945	coro_cctx *first = cctx_first;	1126	coro_cctx *first = cctx_first;
946	cctx_first = first->next;	1127	cctx_first = first->next;
947	--cctx_idle;	1128	--cctx_idle;
948		1129
…		…
954	cctx_first = cctx;	1135	cctx_first = cctx;
955	}	1136	}
956		1137
957	/ coroutine switching ***************************************************/	1138	/ coroutine switching ***************************************************/
958		1139
959	static void NOINLINE	1140	static void
960	transfer_check (pTHX_ struct coro prev, struct coro next)	1141	transfer_check (pTHX_ struct coro prev, struct coro next)
961	{	1142	{
962	if (prev != next)	1143	if (expect_true (prev != next))
963	{	1144	{
964	if (!(prev->flags & (CF_RUNNING \| CF_NEW)))	1145	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
965	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");	1146	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
966		1147
967	if (next->flags & CF_RUNNING)	1148	if (expect_false (next->flags & CF_RUNNING))
968	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");	1149	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
969		1150
970	if (next->flags & CF_DESTROYED)	1151	if (expect_false (next->flags & CF_DESTROYED))
971	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");	1152	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
972		1153
		1154	#if !PERL_VERSION_ATLEAST (5,10,0)
973	if (PL_lex_state != LEX_NOTPARSING)	1155	if (expect_false (PL_lex_state != LEX_NOTPARSING))
974	croak ("Coro::State::transfer called while parsing, but this is not supported");	1156	croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
		1157	#endif
975	}	1158	}
976	}	1159	}
977		1160
978	/* always use the TRANSFER macro */	1161	/* always use the TRANSFER macro */
979	static void NOINLINE	1162	static void NOINLINE
980	transfer (pTHX_ struct coro prev, struct coro next)	1163	transfer (pTHX_ struct coro prev, struct coro next, int force_cctx)
981	{	1164	{
982	dSTACKLEVEL;	1165	dSTACKLEVEL;
		1166	static volatile int has_throw;
983		1167
984	/* sometimes transfer is only called to set idle_sp */	1168	/* sometimes transfer is only called to set idle_sp */
985	if (!next)	1169	if (expect_false (!next))
986	{	1170	{
987	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1171	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
988	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1172	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
989	}	1173	}
990	else if (prev != next)	1174	else if (expect_true (prev != next))
991	{	1175	{
992	coro_cctx *prev__cctx;	1176	coro_cctx *prev__cctx;
993		1177
994	if (prev->flags & CF_NEW)	1178	if (expect_false (prev->flags & CF_NEW))
995	{	1179	{
996	/* create a new empty context */	1180	/* create a new empty context */
997	Newz (0, prev->cctx, 1, coro_cctx);	1181	Newz (0, prev->cctx, 1, coro_cctx);
998	prev->flags &= ~CF_NEW;	1182	prev->flags &= ~CF_NEW;
999	prev->flags \|= CF_RUNNING;	1183	prev->flags \|= CF_RUNNING;
…		…
1002	prev->flags &= ~CF_RUNNING;	1186	prev->flags &= ~CF_RUNNING;
1003	next->flags \|= CF_RUNNING;	1187	next->flags \|= CF_RUNNING;
1004		1188
1005	LOCK;	1189	LOCK;
1006		1190
		1191	/* first get rid of the old state */
		1192	save_perl (aTHX_ prev);
		1193
1007	if (next->flags & CF_NEW)	1194	if (expect_false (next->flags & CF_NEW))
1008	{	1195	{
1009	/* need to start coroutine */	1196	/* need to start coroutine */
1010	next->flags &= ~CF_NEW;	1197	next->flags &= ~CF_NEW;
1011	/* first get rid of the old state */
1012	save_perl (aTHX_ prev);
1013	/* setup coroutine call */	1198	/* setup coroutine call */
1014	setup_coro (aTHX_ next);	1199	coro_setup (aTHX_ next);
1015	}	1200	}
1016	else	1201	else
1017	{
1018	/* coroutine already started */
1019	save_perl (aTHX_ prev);
1020	load_perl (aTHX_ next);	1202	load_perl (aTHX_ next);
1021	}
1022		1203
1023	prev__cctx = prev->cctx;	1204	prev__cctx = prev->cctx;
1024		1205
1025	/* possibly "free" the cctx */	1206	/* possibly "free" the cctx */
1026	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))	1207	if (expect_true (
		1208	prev__cctx->idle_sp == STACKLEVEL
		1209	&& !(prev__cctx->flags & CC_TRACE)
		1210	&& !force_cctx
		1211	))
1027	{	1212	{
1028	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1213	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1029	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1214	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
1030		1215
1031	prev->cctx = 0;	1216	prev->cctx = 0;
1032		1217
		1218	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1219	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1220	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1221	if (!next->cctx)
		1222	next->cctx = cctx_get (aTHX);
		1223
1033	cctx_put (prev__cctx);	1224	cctx_put (prev__cctx);
1034	}	1225	}
1035		1226
1036	++next->usecount;	1227	++next->usecount;
1037		1228
1038	if (!next->cctx)	1229	if (expect_true (!next->cctx))
1039	next->cctx = cctx_get (aTHX);	1230	next->cctx = cctx_get (aTHX);
1040		1231
		1232	has_throw = !!next->throw;
		1233
1041	if (prev__cctx != next->cctx)	1234	if (expect_false (prev__cctx != next->cctx))
1042	{	1235	{
1043	prev__cctx->top_env = PL_top_env;	1236	prev__cctx->top_env = PL_top_env;
1044	PL_top_env = next->cctx->top_env;	1237	PL_top_env = next->cctx->top_env;
1045	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1238	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1046	}	1239	}
1047		1240
1048	free_coro_mortal (aTHX);	1241	free_coro_mortal (aTHX);
1049	UNLOCK;	1242	UNLOCK;
		1243
		1244	if (expect_false (has_throw))
		1245	{
		1246	struct coro *coro = SvSTATE (coro_current);
		1247
		1248	if (coro->throw)
		1249	{
		1250	SV *exception = coro->throw;
		1251	coro->throw = 0;
		1252	sv_setsv (ERRSV, exception);
		1253	croak (0);
		1254	}
		1255	}
1050	}	1256	}
1051	}	1257	}
1052		1258
1053	struct transfer_args	1259	struct transfer_args
1054	{	1260	{
1055	struct coro prev, next;	1261	struct coro prev, next;
1056	};	1262	};
1057		1263
1058	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1264	#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1059	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)	1265	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1060		1266
1061	/ high level stuff ******************************************************/	1267	/ high level stuff ******************************************************/
1062		1268
1063	static int	1269	static int
…		…
1081		1287
1082	if (coro->mainstack && coro->mainstack != main_mainstack)	1288	if (coro->mainstack && coro->mainstack != main_mainstack)
1083	{	1289	{
1084	struct coro temp;	1290	struct coro temp;
1085		1291
1086	assert (!(coro->flags & CF_RUNNING));
1087
1088	Zero (&temp, 1, struct coro);
1089	temp.save = CORO_SAVE_ALL;
1090
1091	if (coro->flags & CF_RUNNING)	1292	if (coro->flags & CF_RUNNING)
1092	croak ("FATAL: tried to destroy currently running coroutine");	1293	croak ("FATAL: tried to destroy currently running coroutine");
1093		1294
1094	save_perl (aTHX_ &temp);	1295	save_perl (aTHX_ &temp);
1095	load_perl (aTHX_ coro);	1296	load_perl (aTHX_ coro);
1096		1297
1097	coro_destroy_stacks (aTHX);	1298	coro_destroy (aTHX_ coro);
1098		1299
1099	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1300	load_perl (aTHX_ &temp);
1100		1301
1101	coro->mainstack = 0;	1302	coro->slot = 0;
1102	}	1303	}
1103		1304
1104	cctx_destroy (coro->cctx);	1305	cctx_destroy (coro->cctx);
1105	SvREFCNT_dec (coro->args);	1306	SvREFCNT_dec (coro->args);
1106		1307
…		…
1162	{	1363	{
1163	dTHX;	1364	dTHX;
1164	struct transfer_args ta;	1365	struct transfer_args ta;
1165		1366
1166	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1367	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1167	TRANSFER (ta);	1368	TRANSFER (ta, 1);
1168	}
1169
1170	static int
1171	api_save (SV *coro_sv, int new_save)
1172	{
1173	dTHX;
1174	struct coro *coro = SvSTATE (coro_sv);
1175	int old_save = coro->save;
1176
1177	if (new_save >= 0)
1178	coro->save = new_save;
1179
1180	return old_save;
1181	}	1369	}
1182		1370
1183	/ Coro ******************************************************************/	1371	/ Coro ******************************************************************/
1184		1372
1185	static void	1373	static void
…		…
1187	{	1375	{
1188	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1376	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1189	}	1377	}
1190		1378
1191	static SV *	1379	static SV *
1192	coro_deq (pTHX_ int min_prio)	1380	coro_deq (pTHX)
1193	{	1381	{
1194	int prio = PRIO_MAX - PRIO_MIN;	1382	int prio;
1195		1383
1196	min_prio -= PRIO_MIN;
1197	if (min_prio < 0)
1198	min_prio = 0;
1199
1200	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )	1384	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1201	if (AvFILLp (coro_ready [prio]) >= 0)	1385	if (AvFILLp (coro_ready [prio]) >= 0)
1202	return av_shift (coro_ready [prio]);	1386	return av_shift (coro_ready [prio]);
1203		1387
1204	return 0;	1388	return 0;
1205	}	1389	}
…		…
1207	static int	1391	static int
1208	api_ready (SV *coro_sv)	1392	api_ready (SV *coro_sv)
1209	{	1393	{
1210	dTHX;	1394	dTHX;
1211	struct coro *coro;	1395	struct coro *coro;
		1396	SV *sv_hook;
		1397	void (*xs_hook)(void);
1212		1398
1213	if (SvROK (coro_sv))	1399	if (SvROK (coro_sv))
1214	coro_sv = SvRV (coro_sv);	1400	coro_sv = SvRV (coro_sv);
1215		1401
1216	coro = SvSTATE (coro_sv);	1402	coro = SvSTATE (coro_sv);
…		…
1219	return 0;	1405	return 0;
1220		1406
1221	coro->flags \|= CF_READY;	1407	coro->flags \|= CF_READY;
1222		1408
1223	LOCK;	1409	LOCK;
		1410
		1411	sv_hook = coro_nready ? 0 : coro_readyhook;
		1412	xs_hook = coro_nready ? 0 : coroapi.readyhook;
		1413
1224	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));	1414	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1225	++coro_nready;	1415	++coro_nready;
		1416
1226	UNLOCK;	1417	UNLOCK;
		1418
		1419	if (sv_hook)
		1420	{
		1421	dSP;
		1422
		1423	ENTER;
		1424	SAVETMPS;
		1425
		1426	PUSHMARK (SP);
		1427	PUTBACK;
		1428	call_sv (sv_hook, G_DISCARD);
		1429	SPAGAIN;
		1430
		1431	FREETMPS;
		1432	LEAVE;
		1433	}
		1434
		1435	if (xs_hook)
		1436	xs_hook ();
1227		1437
1228	return 1;	1438	return 1;
1229	}	1439	}
1230		1440
1231	static int	1441	static int
…		…
1241	SV prev_sv, next_sv;	1451	SV prev_sv, next_sv;
1242		1452
1243	for (;;)	1453	for (;;)
1244	{	1454	{
1245	LOCK;	1455	LOCK;
1246	next_sv = coro_deq (aTHX_ PRIO_MIN);	1456	next_sv = coro_deq (aTHX);
1247		1457
1248	/* nothing to schedule: call the idle handler */	1458	/* nothing to schedule: call the idle handler */
1249	if (!next_sv)	1459	if (expect_false (!next_sv))
1250	{	1460	{
1251	dSP;	1461	dSP;
1252	UNLOCK;	1462	UNLOCK;
1253		1463
1254	ENTER;	1464	ENTER;
1255	SAVETMPS;	1465	SAVETMPS;
1256		1466
1257	PUSHMARK (SP);	1467	PUSHMARK (SP);
1258	PUTBACK;	1468	PUTBACK;
1259	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);	1469	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
		1470	SPAGAIN;
1260		1471
1261	FREETMPS;	1472	FREETMPS;
1262	LEAVE;	1473	LEAVE;
1263	continue;	1474	continue;
1264	}	1475	}
1265		1476
1266	ta->next = SvSTATE (next_sv);	1477	ta->next = SvSTATE (next_sv);
1267		1478
1268	/* cannot transfer to destroyed coros, skip and look for next */	1479	/* cannot transfer to destroyed coros, skip and look for next */
1269	if (ta->next->flags & CF_DESTROYED)	1480	if (expect_false (ta->next->flags & CF_DESTROYED))
1270	{	1481	{
1271	UNLOCK;	1482	UNLOCK;
1272	SvREFCNT_dec (next_sv);	1483	SvREFCNT_dec (next_sv);
1273	/* coro_nready is already taken care of by destroy */	1484	/* coro_nready is already taken care of by destroy */
1274	continue;	1485	continue;
…		…
1319	{	1530	{
1320	dTHX;	1531	dTHX;
1321	struct transfer_args ta;	1532	struct transfer_args ta;
1322		1533
1323	prepare_schedule (aTHX_ &ta);	1534	prepare_schedule (aTHX_ &ta);
1324	TRANSFER (ta);	1535	TRANSFER (ta, 1);
1325	}	1536	}
1326		1537
1327	static int	1538	static int
1328	api_cede (void)	1539	api_cede (void)
1329	{	1540	{
1330	dTHX;	1541	dTHX;
1331	struct transfer_args ta;	1542	struct transfer_args ta;
1332		1543
1333	prepare_cede (aTHX_ &ta);	1544	prepare_cede (aTHX_ &ta);
1334		1545
1335	if (ta.prev != ta.next)	1546	if (expect_true (ta.prev != ta.next))
1336	{	1547	{
1337	TRANSFER (ta);	1548	TRANSFER (ta, 1);
1338	return 1;	1549	return 1;
1339	}	1550	}
1340	else	1551	else
1341	return 0;	1552	return 0;
1342	}	1553	}
…		…
1347	dTHX;	1558	dTHX;
1348	struct transfer_args ta;	1559	struct transfer_args ta;
1349		1560
1350	if (prepare_cede_notself (aTHX_ &ta))	1561	if (prepare_cede_notself (aTHX_ &ta))
1351	{	1562	{
1352	TRANSFER (ta);	1563	TRANSFER (ta, 1);
1353	return 1;	1564	return 1;
1354	}	1565	}
1355	else	1566	else
1356	return 0;	1567	return 0;
1357	}	1568	}
…		…
1376	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);	1587	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
1377		1588
1378	if (coro->flags & CF_RUNNING)	1589	if (coro->flags & CF_RUNNING)
1379	PL_runops = RUNOPS_DEFAULT;	1590	PL_runops = RUNOPS_DEFAULT;
1380	else	1591	else
1381	coro->runops = RUNOPS_DEFAULT;	1592	coro->slot->runops = RUNOPS_DEFAULT;
1382	}	1593	}
1383	}	1594	}
1384		1595
1385	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_	1596	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1386		1597
…		…
1390	{	1601	{
1391	#ifdef USE_ITHREADS	1602	#ifdef USE_ITHREADS
1392	MUTEX_INIT (&coro_mutex);	1603	MUTEX_INIT (&coro_mutex);
1393	#endif	1604	#endif
1394	BOOT_PAGESIZE;	1605	BOOT_PAGESIZE;
		1606
		1607	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1608	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1609
		1610	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1611	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1612	orig_sigelem_set = PL_vtbl_sigelem.svt_set;
		1613	PL_vtbl_sigelem.svt_set = coro_sigelem_set;
		1614
		1615	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1616	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1617	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1395		1618
1396	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1619	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1397		1620
1398	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));	1621	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1399	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));	1622	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1400	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));	1623	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1401	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));	1624	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1402		1625
1403	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1404	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1405	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1406	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1407	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1408	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1409	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1410
1411	main_mainstack = PL_mainstack;	1626	main_mainstack = PL_mainstack;
1412	main_top_env = PL_top_env;	1627	main_top_env = PL_top_env;
1413		1628
1414	while (main_top_env->je_prev)	1629	while (main_top_env->je_prev)
1415	main_top_env = main_top_env->je_prev;	1630	main_top_env = main_top_env->je_prev;
1416		1631
1417	coroapi.ver = CORO_API_VERSION;	1632	coroapi.ver = CORO_API_VERSION;
		1633	coroapi.rev = CORO_API_REVISION;
1418	coroapi.transfer = api_transfer;	1634	coroapi.transfer = api_transfer;
1419		1635
1420	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1636	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1421	}	1637	}
1422		1638
1423	SV *	1639	SV *
1424	new (char *klass, ...)	1640	new (char *klass, ...)
1425	CODE:	1641	CODE:
1426	{	1642	{
1427	struct coro *coro;	1643	struct coro *coro;
		1644	MAGIC *mg;
1428	HV *hv;	1645	HV *hv;
1429	int i;	1646	int i;
1430		1647
1431	Newz (0, coro, 1, struct coro);	1648	Newz (0, coro, 1, struct coro);
1432	coro->args = newAV ();	1649	coro->args = newAV ();
1433	coro->save = CORO_SAVE_DEF;
1434	coro->flags = CF_NEW;	1650	coro->flags = CF_NEW;
1435		1651
1436	if (coro_first) coro_first->prev = coro;	1652	if (coro_first) coro_first->prev = coro;
1437	coro->next = coro_first;	1653	coro->next = coro_first;
1438	coro_first = coro;	1654	coro_first = coro;
1439		1655
1440	coro->hv = hv = newHV ();	1656	coro->hv = hv = newHV ();
1441	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1657	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1658	mg->mg_flags \|= MGf_DUP;
1442	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1659	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1443		1660
		1661	av_extend (coro->args, items - 1);
1444	for (i = 1; i < items; i++)	1662	for (i = 1; i < items; i++)
1445	av_push (coro->args, newSVsv (ST (i)));	1663	av_push (coro->args, newSVsv (ST (i)));
1446	}	1664	}
1447	OUTPUT:	1665	OUTPUT:
1448	RETVAL
1449
1450	int
1451	save (SV *coro, int new_save = -1)
1452	CODE:
1453	RETVAL = api_save (coro, new_save);
1454	OUTPUT:
1455	RETVAL
1456
1457	int
1458	save_also (SV *coro_sv, int save_also)
1459	CODE:
1460	{
1461	struct coro *coro = SvSTATE (coro_sv);
1462	RETVAL = coro->save;
1463	coro->save \|= save_also;
1464	}
1465	OUTPUT:
1466	RETVAL	1666	RETVAL
1467		1667
1468	# these not obviously related functions are all rolled into the same xs	1668	# these not obviously related functions are all rolled into the same xs
1469	# function to increase chances that they all will call transfer with the same	1669	# function to increase chances that they all will call transfer with the same
1470	# stack offset	1670	# stack offset
…		…
1477	Coro::cede_notself = 4	1677	Coro::cede_notself = 4
1478	CODE:	1678	CODE:
1479	{	1679	{
1480	struct transfer_args ta;	1680	struct transfer_args ta;
1481		1681
		1682	PUTBACK;
1482	switch (ix)	1683	switch (ix)
1483	{	1684	{
1484	case 0:	1685	case 0:
1485	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));	1686	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1486	ta.next = 0;	1687	ta.next = 0;
…		…
1505	if (!prepare_cede_notself (aTHX_ &ta))	1706	if (!prepare_cede_notself (aTHX_ &ta))
1506	XSRETURN_EMPTY;	1707	XSRETURN_EMPTY;
1507		1708
1508	break;	1709	break;
1509	}	1710	}
		1711	SPAGAIN;
1510		1712
1511	BARRIER;	1713	BARRIER;
		1714	PUTBACK;
1512	TRANSFER (ta);	1715	TRANSFER (ta, 0);
1513		1716	SPAGAIN; /* might be the sp of a different coroutine now */
1514	if (GIMME_V != G_VOID && ta.next != ta.prev)	1717	/* be extra careful not to ever do anything after TRANSFER */
1515	XSRETURN_YES;
1516	}	1718	}
1517		1719
1518	bool	1720	bool
1519	_destroy (SV *coro_sv)	1721	_destroy (SV *coro_sv)
1520	CODE:	1722	CODE:
1521	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));	1723	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1522	OUTPUT:	1724	OUTPUT:
1523	RETVAL	1725	RETVAL
1524		1726
1525	void	1727	void
1526	_exit (code)	1728	_exit (int code)
1527	int code
1528	PROTOTYPE: $	1729	PROTOTYPE: $
1529	CODE:	1730	CODE:
1530	_exit (code);	1731	_exit (code);
1531		1732
1532	int	1733	int
…		…
1569	CODE:	1770	CODE:
1570	{	1771	{
1571	if (coro->mainstack)	1772	if (coro->mainstack)
1572	{	1773	{
1573	struct coro temp;	1774	struct coro temp;
1574	Zero (&temp, 1, struct coro);
1575	temp.save = CORO_SAVE_ALL;
1576		1775
1577	if (!(coro->flags & CF_RUNNING))	1776	if (!(coro->flags & CF_RUNNING))
1578	{	1777	{
		1778	PUTBACK;
1579	save_perl (aTHX_ &temp);	1779	save_perl (aTHX_ &temp);
1580	load_perl (aTHX_ coro);	1780	load_perl (aTHX_ coro);
1581	}	1781	}
1582		1782
1583	{	1783	{
1584	dSP;	1784	dSP;
1585	ENTER;	1785	ENTER;
1586	SAVETMPS;	1786	SAVETMPS;
		1787	PUTBACK;
		1788	PUSHSTACK;
1587	PUSHMARK (SP);	1789	PUSHMARK (SP);
1588	PUTBACK;	1790
1589	if (ix)	1791	if (ix)
1590	eval_sv (coderef, 0);	1792	eval_sv (coderef, 0);
1591	else	1793	else
1592	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1794	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1795
		1796	POPSTACK;
1593	SPAGAIN;	1797	SPAGAIN;
1594	FREETMPS;	1798	FREETMPS;
1595	LEAVE;	1799	LEAVE;
1596	PUTBACK;	1800	PUTBACK;
1597	}	1801	}
1598		1802
1599	if (!(coro->flags & CF_RUNNING))	1803	if (!(coro->flags & CF_RUNNING))
1600	{	1804	{
1601	save_perl (aTHX_ coro);	1805	save_perl (aTHX_ coro);
1602	load_perl (aTHX_ &temp);	1806	load_perl (aTHX_ &temp);
		1807	SPAGAIN;
1603	}	1808	}
1604	}	1809	}
1605	}	1810	}
1606		1811
1607	SV *	1812	SV *
…		…
1619		1824
1620	void	1825	void
1621	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)	1826	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
1622		1827
1623	SV *	1828	SV *
1624	has_stack (Coro::State coro)	1829	has_cctx (Coro::State coro)
1625	PROTOTYPE: $	1830	PROTOTYPE: $
1626	CODE:	1831	CODE:
1627	RETVAL = boolSV (!!coro->cctx);	1832	RETVAL = boolSV (!!coro->cctx);
1628	OUTPUT:	1833	OUTPUT:
1629	RETVAL	1834	RETVAL
…		…
1648	case 1: RETVAL = coro->usecount; break;	1853	case 1: RETVAL = coro->usecount; break;
1649	}	1854	}
1650	OUTPUT:	1855	OUTPUT:
1651	RETVAL	1856	RETVAL
1652		1857
		1858	void
		1859	force_cctx ()
		1860	CODE:
		1861	struct coro *coro = SvSTATE (coro_current);
		1862	coro->cctx->idle_sp = 0;
1653		1863
1654	MODULE = Coro::State PACKAGE = Coro	1864	MODULE = Coro::State PACKAGE = Coro
1655		1865
1656	BOOT:	1866	BOOT:
1657	{	1867	{
1658	int i;	1868	int i;
1659		1869
1660	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1661	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1662	av_async_pool = get_av ("Coro::async_pool", TRUE);	1870	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1871	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1872	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1663		1873
1664	coro_current = get_sv ("Coro::current", FALSE);	1874	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1665	SvREADONLY_on (coro_current);	1875	SvREADONLY_on (coro_current);
1666		1876
1667	coro_stash = gv_stashpv ("Coro", TRUE);	1877	coro_stash = gv_stashpv ("Coro", TRUE);
1668		1878
1669	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1879	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1670	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1880	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1671	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1881	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1672	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1882	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
…		…
1675		1885
1676	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1886	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1677	coro_ready[i] = newAV ();	1887	coro_ready[i] = newAV ();
1678		1888
1679	{	1889	{
1680	SV *sv = perl_get_sv("Coro::API", 1);	1890	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1891	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1681		1892
1682	coroapi.schedule = api_schedule;	1893	coroapi.schedule = api_schedule;
1683	coroapi.save = api_save;
1684	coroapi.cede = api_cede;	1894	coroapi.cede = api_cede;
1685	coroapi.cede_notself = api_cede_notself;	1895	coroapi.cede_notself = api_cede_notself;
1686	coroapi.ready = api_ready;	1896	coroapi.ready = api_ready;
1687	coroapi.is_ready = api_is_ready;	1897	coroapi.is_ready = api_is_ready;
1688	coroapi.nready = &coro_nready;	1898	coroapi.nready = &coro_nready;
…		…
1698	_set_current (SV *current)	1908	_set_current (SV *current)
1699	PROTOTYPE: $	1909	PROTOTYPE: $
1700	CODE:	1910	CODE:
1701	SvREFCNT_dec (SvRV (coro_current));	1911	SvREFCNT_dec (SvRV (coro_current));
1702	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));	1912	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1913
		1914	void
		1915	_set_readyhook (SV *hook)
		1916	PROTOTYPE: $
		1917	CODE:
		1918	LOCK;
		1919	SvREFCNT_dec (coro_readyhook);
		1920	coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
		1921	UNLOCK;
1703		1922
1704	int	1923	int
1705	prio (Coro::State coro, int newprio = 0)	1924	prio (Coro::State coro, int newprio = 0)
1706	ALIAS:	1925	ALIAS:
1707	nice = 1	1926	nice = 1
…		…
1737	CODE:	1956	CODE:
1738	RETVAL = coro_nready;	1957	RETVAL = coro_nready;
1739	OUTPUT:	1958	OUTPUT:
1740	RETVAL	1959	RETVAL
1741		1960
		1961	void
		1962	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1963	PROTOTYPE: $;$
		1964	CODE:
		1965	SvREFCNT_dec (self->throw);
		1966	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1967
		1968	void
		1969	swap_defsv (Coro::State self)
		1970	PROTOTYPE: $
		1971	ALIAS:
		1972	swap_defav = 1
		1973	CODE:
		1974	if (!self->slot)
		1975	croak ("cannot swap state with coroutine that has no saved state");
		1976	else
		1977	{
		1978	SV src = ix ? (SV )&GvAV (PL_defgv) : &GvSV (PL_defgv);
		1979	SV dst = ix ? (SV )&self->slot->defav : (SV **)&self->slot->defsv;
		1980
		1981	SV tmp = src; src = dst; *dst = tmp;
		1982	}
		1983
1742	# for async_pool speedup	1984	# for async_pool speedup
1743	void	1985	void
1744	_pool_1 (SV *cb)	1986	_pool_1 (SV *cb)
1745	CODE:	1987	CODE:
1746	{	1988	{
1747	int i, len;	1989	struct coro *coro = SvSTATE (coro_current);
1748	HV hv = (HV )SvRV (coro_current);	1990	HV hv = (HV )SvRV (coro_current);
1749	AV *defav = GvAV (PL_defgv);	1991	AV *defav = GvAV (PL_defgv);
1750	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);	1992	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1751	AV *invoke_av;	1993	AV *invoke_av;
		1994	int i, len;
1752		1995
1753	if (!invoke)	1996	if (!invoke)
		1997	{
		1998	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1754	croak ("\3terminate\2\n");	1999	croak ("\3async_pool terminate\2\n");
		2000	}
		2001
		2002	SvREFCNT_dec (coro->saved_deffh);
		2003	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1755		2004
1756	hv_store (hv, "desc", sizeof ("desc") - 1,	2005	hv_store (hv, "desc", sizeof ("desc") - 1,
1757	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);	2006	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1758		2007
1759	invoke_av = (AV *)SvRV (invoke);	2008	invoke_av = (AV *)SvRV (invoke);
…		…
1777	{	2026	{
1778	struct coro *coro = SvSTATE (coro_current);	2027	struct coro *coro = SvSTATE (coro_current);
1779		2028
1780	sv_setsv (cb, &PL_sv_undef);	2029	sv_setsv (cb, &PL_sv_undef);
1781		2030
		2031	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		2032	coro->saved_deffh = 0;
		2033
1782	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)	2034	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1783	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))	2035	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		2036	{
		2037	SvREFCNT_dec (PL_diehook); PL_diehook = 0;
1784	croak ("\3terminate\2\n");	2038	croak ("\3async_pool terminate\2\n");
		2039	}
1785		2040
1786	av_clear (GvAV (PL_defgv));	2041	av_clear (GvAV (PL_defgv));
1787	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,	2042	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1788	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);	2043	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1789		2044
1790	coro->save = CORO_SAVE_DEF;
1791	coro->prio = 0;	2045	coro->prio = 0;
1792		2046
1793	if (coro->cctx && (coro->cctx->flags & CC_TRACE))	2047	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1794	api_trace (coro_current, 0);	2048	api_trace (coro_current, 0);
1795		2049
…		…
1829	PL_laststype = data->laststype;	2083	PL_laststype = data->laststype;
1830	PL_laststatval = data->laststatval;	2084	PL_laststatval = data->laststatval;
1831	PL_statcache = data->statcache;	2085	PL_statcache = data->statcache;
1832	}	2086	}
1833		2087
		2088
		2089	MODULE = Coro::State PACKAGE = Coro::AnyEvent
		2090
		2091	BOOT:
		2092	sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
		2093
		2094	SV *
		2095	_schedule (...)
		2096	PROTOTYPE: @
		2097	CODE:
		2098	{
		2099	static int incede;
		2100
		2101	api_cede_notself ();
		2102
		2103	++incede;
		2104	while (coro_nready >= incede && api_cede ())
		2105	;
		2106
		2107	sv_setsv (sv_activity, &PL_sv_undef);
		2108	if (coro_nready >= incede)
		2109	{
		2110	PUSHMARK (SP);
		2111	PUTBACK;
		2112	call_pv ("Coro::AnyEvent::_activity", G_DISCARD \| G_EVAL);
		2113	SPAGAIN;
		2114	}
		2115
		2116	--incede;
		2117	}
		2118

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Comparing Coro/Coro/State.xs (file contents): Revision 1.176 by root, Sun Sep 30 13:50:38 2007 UTC vs. Revision 1.238 by root, Sat May 31 12:10:55 2008 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.176 by root, Sun Sep 30 13:50:38 2007 UTC vs.
Revision 1.238 by root, Sat May 31 12:10:55 2008 UTC