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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC vs.
Revision 1.214 by root, Sat Oct 13 23:19:10 2007 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	#include <inttypes.h> /* portable stdint.h */
14		16
15	#ifdef HAVE_MMAP	17	#ifdef HAVE_MMAP
16	# include <unistd.h>	18	# include <unistd.h>
17	# include <sys/mman.h>	19	# include <sys/mman.h>
18	# ifndef MAP_ANONYMOUS	20	# ifndef MAP_ANONYMOUS
75	/* 5.8.7 */	77	/* 5.8.7 */
76	#ifndef SvRV_set	78	#ifndef SvRV_set
77	# define SvRV_set(s,v) SvRV(s) = (v)	79	# define SvRV_set(s,v) SvRV(s) = (v)
78	#endif	80	#endif
79		81
		82	/* 5.8.8 */
		83	#ifndef GV_NOTQUAL
		84	# define GV_NOTQUAL 0
		85	#endif
		86	#ifndef newSV
		87	# define newSV(l) NEWSV(0,l)
		88	#endif
		89
80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	90	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81	# undef CORO_STACKGUARD	91	# undef CORO_STACKGUARD
82	#endif	92	#endif
83		93
84	#ifndef CORO_STACKGUARD	94	#ifndef CORO_STACKGUARD
…		…
88	/* prefer perl internal functions over our own? */	98	/* prefer perl internal functions over our own? */
89	#ifndef CORO_PREFER_PERL_FUNCTIONS	99	#ifndef CORO_PREFER_PERL_FUNCTIONS
90	# define CORO_PREFER_PERL_FUNCTIONS 0	100	# define CORO_PREFER_PERL_FUNCTIONS 0
91	#endif	101	#endif
92		102
93	/* The next macro should declare a variable stacklevel that contains and approximation	103	/* The next macros try to return the current stack pointer, in an as
94	* to the current C stack pointer. Its property is that it changes with each call	104	* portable way as possible. */
95	* and should be unique. */
96	#define dSTACKLEVEL int stacklevel	105	#define dSTACKLEVEL volatile char stacklevel
97	#define STACKLEVEL ((void *)&stacklevel)	106	#define STACKLEVEL ((void *)&stacklevel)
98		107
99	#define IN_DESTRUCT (PL_main_cv == Nullcv)	108	#define IN_DESTRUCT (PL_main_cv == Nullcv)
100		109
101	#if __GNUC__ >= 3	110	#if __GNUC__ >= 3
102	# define attribute(x) __attribute__(x)	111	# define attribute(x) __attribute__(x)
103	# define BARRIER __asm__ __volatile__ ("" : : : "memory")	112	# define BARRIER __asm__ __volatile__ ("" : : : "memory")
		113	# define expect(expr,value) __builtin_expect ((expr),(value))
104	#else	114	#else
105	# define attribute(x)	115	# define attribute(x)
106	# define BARRIER	116	# define BARRIER
		117	# define expect(expr,value) (expr)
107	#endif	118	#endif
		119
		120	#define expect_false(expr) expect ((expr) != 0, 0)
		121	#define expect_true(expr) expect ((expr) != 0, 1)
108		122
109	#define NOINLINE attribute ((noinline))	123	#define NOINLINE attribute ((noinline))
110		124
111	#include "CoroAPI.h"	125	#include "CoroAPI.h"
112		126
…		…
133	static AV main_mainstack; / used to differentiate between $main and others */	147	static AV main_mainstack; / used to differentiate between $main and others */
134	static JMPENV *main_top_env;	148	static JMPENV *main_top_env;
135	static HV coro_state_stash, coro_stash;	149	static HV coro_state_stash, coro_stash;
136	static SV coro_mortal; / will be freed after next transfer */	150	static SV coro_mortal; / will be freed after next transfer */
137		151
		152	static GV irsgv; / $/ */
		153	static GV stdoutgv; / STDOUT /
		154	static SV *rv_diehook;
		155	static SV *rv_warnhook;
		156	static HV hv_sig; / %SIG */
		157
		158	/* async_pool helper stuff */
		159	static SV *sv_pool_rss;
		160	static SV *sv_pool_size;
		161	static AV *av_async_pool;
		162
138	static struct coro_cctx *cctx_first;	163	static struct coro_cctx *cctx_first;
139	static int cctx_count, cctx_idle;	164	static int cctx_count, cctx_idle;
		165
		166	enum {
		167	CC_MAPPED = 0x01,
		168	CC_NOREUSE = 0x02, /* throw this away after tracing */
		169	CC_TRACE = 0x04,
		170	CC_TRACE_SUB = 0x08, /* trace sub calls */
		171	CC_TRACE_LINE = 0x10, /* trace each statement */
		172	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		173	};
140		174
141	/* this is a structure representing a c-level coroutine */	175	/* this is a structure representing a c-level coroutine */
142	typedef struct coro_cctx {	176	typedef struct coro_cctx {
143	struct coro_cctx *next;	177	struct coro_cctx *next;
144		178
…		…
153	coro_context cctx;	187	coro_context cctx;
154		188
155	#if CORO_USE_VALGRIND	189	#if CORO_USE_VALGRIND
156	int valgrind_id;	190	int valgrind_id;
157	#endif	191	#endif
158	char inuse, mapped;	192	unsigned char flags;
159	} coro_cctx;	193	} coro_cctx;
160		194
161	enum {	195	enum {
162	CF_RUNNING = 0x0001, /* coroutine is running */	196	CF_RUNNING = 0x0001, /* coroutine is running */
163	CF_READY = 0x0002, /* coroutine is ready */	197	CF_READY = 0x0002, /* coroutine is ready */
164	CF_NEW = 0x0004, /* has never been switched to */	198	CF_NEW = 0x0004, /* has never been switched to */
165	CF_DESTROYED = 0x0008, /* coroutine data has been freed */	199	CF_DESTROYED = 0x0008, /* coroutine data has been freed */
166	};	200	};
167		201
		202	/* the structure where most of the perl state is stored, overlaid on the cxstack */
		203	typedef struct {
		204	SV *defsv;
		205	AV *defav;
		206	SV *errsv;
		207	SV *irsgv;
		208	#define VAR(name,type) type name;
		209	# include "state.h"
		210	#undef VAR
		211	} perl_slots;
		212
		213	#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
		214
168	/* this is a structure representing a perl-level coroutine */	215	/* this is a structure representing a perl-level coroutine */
169	struct coro {	216	struct coro {
170	/* the c coroutine allocated to this perl coroutine, if any */	217	/* the c coroutine allocated to this perl coroutine, if any */
171	coro_cctx *cctx;	218	coro_cctx *cctx;
172		219
		220	/* process data */
		221	AV *mainstack;
		222	perl_slots slot; / basically the saved sp */
		223
173	/* data associated with this coroutine (initial args) */	224	AV args; / data associated with this coroutine (initial args) */
174	AV *args;	225	int refcnt; /* coroutines are refcounted, yes */
175	int refcnt;
176	int save; /* CORO_SAVE flags */
177	int flags; /* CF_ flags */	226	int flags; /* CF_ flags */
		227	HV hv; / the perl hash associated with this coro, if any */
178		228
179	/* optionally saved, might be zero */	229	/* statistics */
180	AV defav; / @_ */	230	int usecount; /* number of transfers to this coro */
181	SV defsv; / $_ */
182	SV errsv; / $@ */
183	GV deffh; / default filehandle */
184	SV irssv; / $/ */
185	SV irssv_sv; / real $/ cache */
186
187	#define VAR(name,type) type name;
188	# include "state.h"
189	#undef VAR
190		231
191	/* coro process data */	232	/* coro process data */
192	int prio;	233	int prio;
		234	SV throw; / exception to be thrown */
		235
		236	/* async_pool */
		237	SV *saved_deffh;
193		238
194	/* linked list */	239	/* linked list */
195	struct coro next, prev;	240	struct coro next, prev;
196	HV hv; / the perl hash associated with this coro, if any */
197	};	241	};
198		242
199	typedef struct coro *Coro__State;	243	typedef struct coro *Coro__State;
200	typedef struct coro *Coro__State_or_hashref;	244	typedef struct coro *Coro__State_or_hashref;
201		245
…		…
210		254
211	/* for Coro.pm */	255	/* for Coro.pm */
212	static SV *coro_current;	256	static SV *coro_current;
213	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	257	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
214	static int coro_nready;	258	static int coro_nready;
215	static struct coro *first;	259	static struct coro *coro_first;
216		260
217	/ lowlevel stuff ********************************************************/	261	/ lowlevel stuff ********************************************************/
		262
		263	static SV *
		264	coro_get_sv (pTHX_ const char *name, int create)
		265	{
		266	#if PERL_VERSION_ATLEAST (5,9,0)
		267	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		268	get_sv (name, create);
		269	#endif
		270	return get_sv (name, create);
		271	}
		272
		273	static AV *
		274	coro_get_av (pTHX_ const char *name, int create)
		275	{
		276	#if PERL_VERSION_ATLEAST (5,9,0)
		277	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		278	get_av (name, create);
		279	#endif
		280	return get_av (name, create);
		281	}
		282
		283	static HV *
		284	coro_get_hv (pTHX_ const char *name, int create)
		285	{
		286	#if PERL_VERSION_ATLEAST (5,9,0)
		287	/* silence stupid and wrong 5.10 warning that I am unable to switch off */
		288	get_hv (name, create);
		289	#endif
		290	return get_hv (name, create);
		291	}
218		292
219	static AV *	293	static AV *
220	coro_clone_padlist (pTHX_ CV *cv)	294	coro_clone_padlist (pTHX_ CV *cv)
221	{	295	{
222	AV *padlist = CvPADLIST (cv);	296	AV *padlist = CvPADLIST (cv);
…		…
270		344
271	/* casting is fun. */	345	/* casting is fun. */
272	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	346	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
273	free_padlist (aTHX_ padlist);	347	free_padlist (aTHX_ padlist);
274		348
275	SvREFCNT_dec (av);
276
277	return 0;	349	return 0;
278	}	350	}
279		351
280	#define PERL_MAGIC_coro PERL_MAGIC_ext	352	#define CORO_MAGIC_type_cv PERL_MAGIC_ext
		353	#define CORO_MAGIC_type_state PERL_MAGIC_ext
281		354
282	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	355	static MGVTBL coro_cv_vtbl = {
		356	0, 0, 0, 0,
		357	coro_cv_free
		358	};
283		359
284	#define CORO_MAGIC(cv) \	360	#define CORO_MAGIC(sv,type) \
285	SvMAGIC (cv) \	361	SvMAGIC (sv) \
286	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \	362	? SvMAGIC (sv)->mg_type == type \
287	? SvMAGIC (cv) \	363	? SvMAGIC (sv) \
288	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	364	: mg_find (sv, type) \
289	: 0	365	: 0
290		366
		367	#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
		368	#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
		369
		370	static struct coro *
		371	SvSTATE_ (pTHX_ SV *coro)
		372	{
		373	HV *stash;
		374	MAGIC *mg;
		375
		376	if (SvROK (coro))
		377	coro = SvRV (coro);
		378
		379	if (expect_false (SvTYPE (coro) != SVt_PVHV))
		380	croak ("Coro::State object required");
		381
		382	stash = SvSTASH (coro);
		383	if (expect_false (stash != coro_stash && stash != coro_state_stash))
		384	{
		385	/* very slow, but rare, check */
		386	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
		387	croak ("Coro::State object required");
		388	}
		389
		390	mg = CORO_MAGIC_state (coro);
		391	return (struct coro *)mg->mg_ptr;
		392	}
		393
		394	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		395
291	/* the next two functions merely cache the padlists */	396	/* the next two functions merely cache the padlists */
292	static void	397	static void
293	get_padlist (pTHX_ CV *cv)	398	get_padlist (pTHX_ CV *cv)
294	{	399	{
295	MAGIC *mg = CORO_MAGIC (cv);	400	MAGIC *mg = CORO_MAGIC_cv (cv);
296	AV *av;	401	AV *av;
297		402
298	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	403	if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
299	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	404	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
300	else	405	else
301	{	406	{
302	#if CORO_PREFER_PERL_FUNCTIONS	407	#if CORO_PREFER_PERL_FUNCTIONS
303	/* this is probably cleaner, but also slower? */	408	/* this is probably cleaner, but also slower? */
…		…
312	}	417	}
313		418
314	static void	419	static void
315	put_padlist (pTHX_ CV *cv)	420	put_padlist (pTHX_ CV *cv)
316	{	421	{
317	MAGIC *mg = CORO_MAGIC (cv);	422	MAGIC *mg = CORO_MAGIC_cv (cv);
318	AV *av;	423	AV *av;
319		424
320	if (!mg)	425	if (expect_false (!mg))
321	{	426	mg = sv_magicext ((SV )cv, (SV )newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
322	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
323	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
324	mg->mg_virtual = &vtbl_coro;
325	mg->mg_obj = (SV *)newAV ();
326	}
327		427
328	av = (AV *)mg->mg_obj;	428	av = (AV *)mg->mg_obj;
329		429
330	if (AvFILLp (av) >= AvMAX (av))	430	if (expect_false (AvFILLp (av) >= AvMAX (av)))
331	av_extend (av, AvMAX (av) + 1);	431	av_extend (av, AvMAX (av) + 1);
332		432
333	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);	433	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
334	}	434	}
335		435
336	/ load & save, init *****************************************************/	436	/ load & save, init *****************************************************/
337		437
338	#define SB do {
339	#define SE } while (0)
340
341	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
342
343	static void	438	static void
344	load_perl (pTHX_ Coro__State c)	439	load_perl (pTHX_ Coro__State c)
345	{	440	{
		441	perl_slots *slot = c->slot;
		442	c->slot = 0;
		443
		444	PL_mainstack = c->mainstack;
		445
		446	GvSV (PL_defgv) = slot->defsv;
		447	GvAV (PL_defgv) = slot->defav;
		448	GvSV (PL_errgv) = slot->errsv;
		449	GvSV (irsgv) = slot->irsgv;
		450
346	#define VAR(name,type) PL_ ## name = c->name;	451	#define VAR(name,type) PL_ ## name = slot->name;
347	# include "state.h"	452	# include "state.h"
348	#undef VAR	453	#undef VAR
349
350	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
351	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
352	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
353	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
354
355	if (c->irssv)
356	{
357	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
358	{
359	SvREFCNT_dec (c->irssv);
360	c->irssv = 0;
361	}
362	else
363	{
364	REPLACE_SV (PL_rs, c->irssv);
365	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
366	sv_setsv (c->irssv_sv, PL_rs);
367	}
368	}
369		454
370	{	455	{
371	dSP;	456	dSP;
		457
372	CV *cv;	458	CV *cv;
373		459
374	/* now do the ugly restore mess */	460	/* now do the ugly restore mess */
375	while ((cv = (CV *)POPs))	461	while (expect_true (cv = (CV *)POPs))
376	{	462	{
377	put_padlist (aTHX_ cv); /* mark this padlist as available */	463	put_padlist (aTHX_ cv); /* mark this padlist as available */
378	CvDEPTH (cv) = PTR2IV (POPs);	464	CvDEPTH (cv) = PTR2IV (POPs);
379	CvPADLIST (cv) = (AV *)POPs;	465	CvPADLIST (cv) = (AV *)POPs;
380	}	466	}
…		…
395	/*	481	/*
396	* the worst thing you can imagine happens first - we have to save	482	* the worst thing you can imagine happens first - we have to save
397	* (and reinitialize) all cv's in the whole callchain :(	483	* (and reinitialize) all cv's in the whole callchain :(
398	*/	484	*/
399		485
400	EXTEND (SP, 3 + 1);
401	PUSHs (Nullsv);	486	XPUSHs (Nullsv);
402	/* this loop was inspired by pp_caller */	487	/* this loop was inspired by pp_caller */
403	for (;;)	488	for (;;)
404	{	489	{
405	while (cxix >= 0)	490	while (expect_true (cxix >= 0))
406	{	491	{
407	PERL_CONTEXT *cx = &ccstk[cxix--];	492	PERL_CONTEXT *cx = &ccstk[cxix--];
408		493
409	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)	494	if (expect_true (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT))
410	{	495	{
411	CV *cv = cx->blk_sub.cv;	496	CV *cv = cx->blk_sub.cv;
412		497
413	if (CvDEPTH (cv))	498	if (expect_true (CvDEPTH (cv)))
414	{	499	{
415	EXTEND (SP, 3);	500	EXTEND (SP, 3);
416	PUSHs ((SV *)CvPADLIST (cv));	501	PUSHs ((SV *)CvPADLIST (cv));
417	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	502	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
418	PUSHs ((SV *)cv);	503	PUSHs ((SV *)cv);
…		…
421	get_padlist (aTHX_ cv);	506	get_padlist (aTHX_ cv);
422	}	507	}
423	}	508	}
424	}	509	}
425		510
426	if (top_si->si_type == PERLSI_MAIN)	511	if (expect_true (top_si->si_type == PERLSI_MAIN))
427	break;	512	break;
428		513
429	top_si = top_si->si_prev;	514	top_si = top_si->si_prev;
430	ccstk = top_si->si_cxstack;	515	ccstk = top_si->si_cxstack;
431	cxix = top_si->si_cxix;	516	cxix = top_si->si_cxix;
432	}	517	}
433		518
434	PUTBACK;	519	PUTBACK;
435	}	520	}
436		521
437	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	522	/* allocate some space on the context stack for our purposes */
438	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	523	/* we manually unroll here, as usually 2 slots is enough */
439	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	524	if (SLOT_COUNT >= 1) CXINC;
440	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;	525	if (SLOT_COUNT >= 2) CXINC;
441	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	526	if (SLOT_COUNT >= 3) CXINC;
		527	{
		528	int i;
		529	for (i = 3; i < SLOT_COUNT; ++i)
		530	CXINC;
		531	}
		532	cxstack_ix -= SLOT_COUNT; /* undo allocation */
442		533
		534	c->mainstack = PL_mainstack;
		535
		536	{
		537	perl_slots slot = c->slot = (perl_slots )(cxstack + cxstack_ix + 1);
		538
		539	slot->defav = GvAV (PL_defgv);
		540	slot->defsv = DEFSV;
		541	slot->errsv = ERRSV;
		542	slot->irsgv = GvSV (irsgv);
		543
443	#define VAR(name,type)c->name = PL_ ## name;	544	#define VAR(name,type) slot->name = PL_ ## name;
444	# include "state.h"	545	# include "state.h"
445	#undef VAR	546	#undef VAR
		547	}
446	}	548	}
447		549
448	/*	550	/*
449	* allocate various perl stacks. This is an exact copy	551	* allocate various perl stacks. This is an exact copy
450	* of perl.c:init_stacks, except that it uses less memory	552	* of perl.c:init_stacks, except that it uses less memory
…		…
455	# define coro_init_stacks init_stacks	557	# define coro_init_stacks init_stacks
456	#else	558	#else
457	static void	559	static void
458	coro_init_stacks (pTHX)	560	coro_init_stacks (pTHX)
459	{	561	{
460	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	562	PL_curstackinfo = new_stackinfo(32, 8);
461	PL_curstackinfo->si_type = PERLSI_MAIN;	563	PL_curstackinfo->si_type = PERLSI_MAIN;
462	PL_curstack = PL_curstackinfo->si_stack;	564	PL_curstack = PL_curstackinfo->si_stack;
463	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	565	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
464		566
465	PL_stack_base = AvARRAY(PL_curstack);	567	PL_stack_base = AvARRAY(PL_curstack);
466	PL_stack_sp = PL_stack_base;	568	PL_stack_sp = PL_stack_base;
467	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	569	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
468		570
469	New(50,PL_tmps_stack,128,SV*);	571	New(50,PL_tmps_stack,32,SV*);
470	PL_tmps_floor = -1;	572	PL_tmps_floor = -1;
471	PL_tmps_ix = -1;	573	PL_tmps_ix = -1;
472	PL_tmps_max = 128;	574	PL_tmps_max = 32;
473		575
474	New(54,PL_markstack,32,I32);	576	New(54,PL_markstack,16,I32);
475	PL_markstack_ptr = PL_markstack;	577	PL_markstack_ptr = PL_markstack;
476	PL_markstack_max = PL_markstack + 32;	578	PL_markstack_max = PL_markstack + 16;
477		579
478	#ifdef SET_MARK_OFFSET	580	#ifdef SET_MARK_OFFSET
479	SET_MARK_OFFSET;	581	SET_MARK_OFFSET;
480	#endif	582	#endif
481		583
482	New(54,PL_scopestack,32,I32);	584	New(54,PL_scopestack,8,I32);
483	PL_scopestack_ix = 0;	585	PL_scopestack_ix = 0;
484	PL_scopestack_max = 32;	586	PL_scopestack_max = 8;
485		587
486	New(54,PL_savestack,64,ANY);	588	New(54,PL_savestack,24,ANY);
487	PL_savestack_ix = 0;	589	PL_savestack_ix = 0;
488	PL_savestack_max = 64;	590	PL_savestack_max = 24;
489		591
490	#if !PERL_VERSION_ATLEAST (5,9,0)	592	#if !PERL_VERSION_ATLEAST (5,9,0)
491	New(54,PL_retstack,16,OP*);	593	New(54,PL_retstack,4,OP*);
492	PL_retstack_ix = 0;	594	PL_retstack_ix = 0;
493	PL_retstack_max = 16;	595	PL_retstack_max = 4;
494	#endif	596	#endif
495	}	597	}
496	#endif	598	#endif
497		599
498	/*	600	/*
499	* destroy the stacks, the callchain etc...	601	* destroy the stacks, the callchain etc...
500	*/	602	*/
501	static void	603	static void
502	coro_destroy_stacks (pTHX)	604	coro_destroy_stacks (pTHX)
503	{	605	{
504	if (!IN_DESTRUCT)
505	{
506	/* restore all saved variables and stuff */
507	LEAVE_SCOPE (0);
508	assert (PL_tmps_floor == -1);
509
510	/* free all temporaries */
511	FREETMPS;
512	assert (PL_tmps_ix == -1);
513
514	/* unwind all extra stacks */
515	POPSTACK_TO (PL_mainstack);
516
517	/* unwind main stack */
518	dounwind (-1);
519	}
520
521	while (PL_curstackinfo->si_next)	606	while (PL_curstackinfo->si_next)
522	PL_curstackinfo = PL_curstackinfo->si_next;	607	PL_curstackinfo = PL_curstackinfo->si_next;
523		608
524	while (PL_curstackinfo)	609	while (PL_curstackinfo)
525	{	610	{
…		…
540	#if !PERL_VERSION_ATLEAST (5,9,0)	625	#if !PERL_VERSION_ATLEAST (5,9,0)
541	Safefree (PL_retstack);	626	Safefree (PL_retstack);
542	#endif	627	#endif
543	}	628	}
544		629
		630	static size_t
		631	coro_rss (pTHX_ struct coro *coro)
		632	{
		633	size_t rss = sizeof (*coro);
		634
		635	if (coro->mainstack)
		636	{
		637	perl_slots tmp_slot;
		638	perl_slots *slot;
		639
		640	if (coro->flags & CF_RUNNING)
		641	{
		642	slot = &tmp_slot;
		643
		644	#define VAR(name,type) slot->name = PL_ ## name;
		645	# include "state.h"
		646	#undef VAR
		647	}
		648	else
		649	slot = coro->slot;
		650
		651	rss += sizeof (slot->curstackinfo);
		652	rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		653	rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
		654	rss += slot->tmps_max * sizeof (SV *);
		655	rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
		656	rss += slot->scopestack_max * sizeof (I32);
		657	rss += slot->savestack_max * sizeof (ANY);
		658
		659	#if !PERL_VERSION_ATLEAST (5,9,0)
		660	rss += slot->retstack_max * sizeof (OP *);
		661	#endif
		662	}
		663
		664	return rss;
		665	}
		666
545	/ coroutine stack handling **********************************************/	667	/ coroutine stack handling **********************************************/
546		668
		669	static int (orig_sigelem_get) (pTHX_ SV sv, MAGIC *mg);
		670
		671	/*
		672	* This overrides the default magic get method of %SIG elements.
		673	* The original one doesn't provide for reading back of PL_diehook/PL_warnhook
		674	* and instead of tryign to save and restore the hash elements, we just provide
		675	* readback here.
		676	* We only do this when the hook is != 0, as they are often set to 0 temporarily,
		677	* not expecting this to actually change the hook. This is a potential problem
		678	* when a schedule happens then, but we ignore this.
		679	*/
547	static void	680	static int
		681	coro_sigelem_get (pTHX_ SV sv, MAGIC mg)
		682	{
		683	const char *s = MgPV_nolen_const (mg);
		684
		685	if (*s == '_')
		686	{
		687	if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
		688	if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
		689	}
		690
		691	return orig_sigelem_get (aTHX_ sv, mg);
		692	}
		693
		694	static void
548	setup_coro (pTHX_ struct coro *coro)	695	coro_setup (pTHX_ struct coro *coro)
549	{	696	{
550	/*	697	/*
551	* emulate part of the perl startup here.	698	* emulate part of the perl startup here.
552	*/	699	*/
553	coro_init_stacks (aTHX);	700	coro_init_stacks (aTHX);
554		701
		702	PL_runops = RUNOPS_DEFAULT;
555	PL_curcop = &PL_compiling;	703	PL_curcop = &PL_compiling;
556	PL_in_eval = EVAL_NULL;	704	PL_in_eval = EVAL_NULL;
557	PL_comppad = 0;	705	PL_comppad = 0;
558	PL_curpm = 0;	706	PL_curpm = 0;
		707	PL_curpad = 0;
559	PL_localizing = 0;	708	PL_localizing = 0;
560	PL_dirty = 0;	709	PL_dirty = 0;
561	PL_restartop = 0;	710	PL_restartop = 0;
562		711
		712	/* recreate the die/warn hooks */
		713	PL_diehook = 0;
		714	hv_store (hv_sig, "__DIE__", sizeof ("__DIE__") - 1, newSV (0), 0);
		715	PL_diehook = SvREFCNT_inc (rv_diehook);
		716
		717	PL_warnhook = 0;
		718	hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, newSV (0), 0);
		719	PL_warnhook = SvREFCNT_inc (rv_warnhook);
		720
		721	GvSV (PL_defgv) = newSV (0);
		722	GvAV (PL_defgv) = coro->args; coro->args = 0;
		723	GvSV (PL_errgv) = newSV (0);
		724	GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
		725	PL_rs = newSVsv (GvSV (irsgv));
		726	PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
		727
563	{	728	{
564	dSP;	729	dSP;
565	LOGOP myop;	730	LOGOP myop;
566		731
567	SvREFCNT_dec (GvAV (PL_defgv));
568	GvAV (PL_defgv) = coro->args; coro->args = 0;
569
570	Zero (&myop, 1, LOGOP);	732	Zero (&myop, 1, LOGOP);
571	myop.op_next = Nullop;	733	myop.op_next = Nullop;
572	myop.op_flags = OPf_WANT_VOID;	734	myop.op_flags = OPf_WANT_VOID;
573		735
574	PUSHMARK (SP);	736	PUSHMARK (SP);
575	XPUSHs (av_shift (GvAV (PL_defgv)));	737	XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
576	PUTBACK;	738	PUTBACK;
577	PL_op = (OP *)&myop;	739	PL_op = (OP *)&myop;
578	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	740	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
579	SPAGAIN;	741	SPAGAIN;
580	}	742	}
581		743
582	ENTER; /* necessary e.g. for dounwind */	744	/* this newly created coroutine might be run on an existing cctx which most
		745	* likely was suspended in set_stacklevel, called from entersub.
		746	* set_stacklevl doesn't do anything on return, but entersub does LEAVE,
		747	* so we ENTER here for symmetry
		748	*/
		749	ENTER;
		750	}
		751
		752	static void
		753	coro_destroy (pTHX_ struct coro *coro)
		754	{
		755	if (!IN_DESTRUCT)
		756	{
		757	/* restore all saved variables and stuff */
		758	LEAVE_SCOPE (0);
		759	assert (PL_tmps_floor == -1);
		760
		761	/* free all temporaries */
		762	FREETMPS;
		763	assert (PL_tmps_ix == -1);
		764
		765	/* unwind all extra stacks */
		766	POPSTACK_TO (PL_mainstack);
		767
		768	/* unwind main stack */
		769	dounwind (-1);
		770	}
		771
		772	SvREFCNT_dec (GvSV (PL_defgv));
		773	SvREFCNT_dec (GvAV (PL_defgv));
		774	SvREFCNT_dec (GvSV (PL_errgv));
		775	SvREFCNT_dec (PL_defoutgv);
		776	SvREFCNT_dec (PL_rs);
		777	SvREFCNT_dec (GvSV (irsgv));
		778
		779	SvREFCNT_dec (PL_diehook);
		780	SvREFCNT_dec (PL_warnhook);
		781
		782	SvREFCNT_dec (coro->saved_deffh);
		783	SvREFCNT_dec (coro->throw);
		784
		785	coro_destroy_stacks (aTHX);
583	}	786	}
584		787
585	static void	788	static void
586	free_coro_mortal (pTHX)	789	free_coro_mortal (pTHX)
587	{	790	{
588	if (coro_mortal)	791	if (expect_true (coro_mortal))
589	{	792	{
590	SvREFCNT_dec (coro_mortal);	793	SvREFCNT_dec (coro_mortal);
591	coro_mortal = 0;	794	coro_mortal = 0;
592	}	795	}
		796	}
		797
		798	static int
		799	runops_trace (pTHX)
		800	{
		801	COP *oldcop = 0;
		802	int oldcxix = -2;
		803	struct coro coro = SvSTATE (coro_current); / trace cctx is tied to specific coro */
		804	coro_cctx *cctx = coro->cctx;
		805
		806	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		807	{
		808	PERL_ASYNC_CHECK ();
		809
		810	if (cctx->flags & CC_TRACE_ALL)
		811	{
		812	if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
		813	{
		814	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		815	SV bot, top;
		816	AV av = newAV (); / return values */
		817	SV **cb;
		818	dSP;
		819
		820	GV *gv = CvGV (cx->blk_sub.cv);
		821	SV *fullname = sv_2mortal (newSV (0));
		822	if (isGV (gv))
		823	gv_efullname3 (fullname, gv, 0);
		824
		825	bot = PL_stack_base + cx->blk_oldsp + 1;
		826	top = cx->blk_gimme == G_ARRAY ? SP + 1
		827	: cx->blk_gimme == G_SCALAR ? bot + 1
		828	: bot;
		829
		830	av_extend (av, top - bot);
		831	while (bot < top)
		832	av_push (av, SvREFCNT_inc (*bot++));
		833
		834	PL_runops = RUNOPS_DEFAULT;
		835	ENTER;
		836	SAVETMPS;
		837	EXTEND (SP, 3);
		838	PUSHMARK (SP);
		839	PUSHs (&PL_sv_no);
		840	PUSHs (fullname);
		841	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		842	PUTBACK;
		843	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		844	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		845	SPAGAIN;
		846	FREETMPS;
		847	LEAVE;
		848	PL_runops = runops_trace;
		849	}
		850
		851	if (oldcop != PL_curcop)
		852	{
		853	oldcop = PL_curcop;
		854
		855	if (PL_curcop != &PL_compiling)
		856	{
		857	SV **cb;
		858
		859	if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
		860	{
		861	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		862
		863	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		864	{
		865	runops_proc_t old_runops = PL_runops;
		866	dSP;
		867	GV *gv = CvGV (cx->blk_sub.cv);
		868	SV *fullname = sv_2mortal (newSV (0));
		869
		870	if (isGV (gv))
		871	gv_efullname3 (fullname, gv, 0);
		872
		873	PL_runops = RUNOPS_DEFAULT;
		874	ENTER;
		875	SAVETMPS;
		876	EXTEND (SP, 3);
		877	PUSHMARK (SP);
		878	PUSHs (&PL_sv_yes);
		879	PUSHs (fullname);
		880	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		881	PUTBACK;
		882	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
		883	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		884	SPAGAIN;
		885	FREETMPS;
		886	LEAVE;
		887	PL_runops = runops_trace;
		888	}
		889
		890	oldcxix = cxstack_ix;
		891	}
		892
		893	if (cctx->flags & CC_TRACE_LINE)
		894	{
		895	dSP;
		896
		897	PL_runops = RUNOPS_DEFAULT;
		898	ENTER;
		899	SAVETMPS;
		900	EXTEND (SP, 3);
		901	PL_runops = RUNOPS_DEFAULT;
		902	PUSHMARK (SP);
		903	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		904	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		905	PUTBACK;
		906	cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
		907	if (cb) call_sv (*cb, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		908	SPAGAIN;
		909	FREETMPS;
		910	LEAVE;
		911	PL_runops = runops_trace;
		912	}
		913	}
		914	}
		915	}
		916	}
		917
		918	TAINT_NOT;
		919	return 0;
593	}	920	}
594		921
595	/* inject a fake call to Coro::State::_cctx_init into the execution */	922	/* inject a fake call to Coro::State::_cctx_init into the execution */
596	/* _cctx_init should be careful, as it could be called at almost any time */	923	/* _cctx_init should be careful, as it could be called at almost any time */
597	/* during execution of a perl program */	924	/* during execution of a perl program */
598	static void NOINLINE	925	static void NOINLINE
599	prepare_cctx (pTHX_ coro_cctx *cctx)	926	cctx_prepare (pTHX_ coro_cctx *cctx)
600	{	927	{
601	dSP;	928	dSP;
602	LOGOP myop;	929	LOGOP myop;
		930
		931	PL_top_env = &PL_start_env;
		932
		933	if (cctx->flags & CC_TRACE)
		934	PL_runops = runops_trace;
603		935
604	Zero (&myop, 1, LOGOP);	936	Zero (&myop, 1, LOGOP);
605	myop.op_next = PL_op;	937	myop.op_next = PL_op;
606	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	938	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
607		939
…		…
617		949
618	/*	950	/*
619	* this is a _very_ stripped down perl interpreter ;)	951	* this is a _very_ stripped down perl interpreter ;)
620	*/	952	*/
621	static void	953	static void
622	coro_run (void *arg)	954	cctx_run (void *arg)
623	{	955	{
624	dTHX;	956	dTHX;
625		957
626	/* coro_run is the alternative tail of transfer(), so unlock here. */	958	/* cctx_run is the alternative tail of transfer(), so unlock here. */
627	UNLOCK;	959	UNLOCK;
628		960
629	PL_top_env = &PL_start_env;	961	/* we now skip the entersub that lead to transfer() */
		962	PL_op = PL_op->op_next;
630		963
631	/* inject a fake subroutine call to cctx_init */	964	/* inject a fake subroutine call to cctx_init */
632	prepare_cctx (aTHX_ (coro_cctx *)arg);	965	cctx_prepare (aTHX_ (coro_cctx *)arg);
633		966
634	/* somebody or something will hit me for both perl_run and PL_restartop */	967	/* somebody or something will hit me for both perl_run and PL_restartop */
635	PL_restartop = PL_op;	968	PL_restartop = PL_op;
636	perl_run (PL_curinterp);	969	perl_run (PL_curinterp);
637		970
…		…
656	++cctx_count;	989	++cctx_count;
657		990
658	Newz (0, cctx, 1, coro_cctx);	991	Newz (0, cctx, 1, coro_cctx);
659		992
660	#if HAVE_MMAP	993	#if HAVE_MMAP
661
662	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;	994	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
663	/* mmap supposedly does allocate-on-write for us */	995	/* mmap supposedly does allocate-on-write for us */
664	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	996	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
665		997
666	if (cctx->sptr != (void *)-1)	998	if (cctx->sptr != (void *)-1)
…		…
668	# if CORO_STACKGUARD	1000	# if CORO_STACKGUARD
669	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);	1001	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
670	# endif	1002	# endif
671	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;	1003	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
672	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;	1004	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
673	cctx->mapped = 1;	1005	cctx->flags \|= CC_MAPPED;
674	}	1006	}
675	else	1007	else
676	#endif	1008	#endif
677	{	1009	{
678	cctx->ssize = coro_stacksize * (long)sizeof (long);	1010	cctx->ssize = coro_stacksize * (long)sizeof (long);
…		…
687	stack_start = cctx->sptr;	1019	stack_start = cctx->sptr;
688	stack_size = cctx->ssize;	1020	stack_size = cctx->ssize;
689	}	1021	}
690		1022
691	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);	1023	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
692	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);	1024	coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
693		1025
694	return cctx;	1026	return cctx;
695	}	1027	}
696		1028
697	static void	1029	static void
…		…
705	#if CORO_USE_VALGRIND	1037	#if CORO_USE_VALGRIND
706	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	1038	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
707	#endif	1039	#endif
708		1040
709	#if HAVE_MMAP	1041	#if HAVE_MMAP
710	if (cctx->mapped)	1042	if (cctx->flags & CC_MAPPED)
711	munmap (cctx->sptr, cctx->ssize);	1043	munmap (cctx->sptr, cctx->ssize);
712	else	1044	else
713	#endif	1045	#endif
714	Safefree (cctx->sptr);	1046	Safefree (cctx->sptr);
715		1047
716	Safefree (cctx);	1048	Safefree (cctx);
717	}	1049	}
718		1050
		1051	/* wether this cctx should be destructed */
		1052	#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize \|\| ((cctx)->flags & CC_NOREUSE))
		1053
719	static coro_cctx *	1054	static coro_cctx *
720	cctx_get (pTHX)	1055	cctx_get (pTHX)
721	{	1056	{
722	while (cctx_first)	1057	while (expect_true (cctx_first))
723	{	1058	{
724	coro_cctx *cctx = cctx_first;	1059	coro_cctx *cctx = cctx_first;
725	cctx_first = cctx->next;	1060	cctx_first = cctx->next;
726	--cctx_idle;	1061	--cctx_idle;
727		1062
728	if (cctx->ssize >= coro_stacksize)	1063	if (expect_true (!CCTX_EXPIRED (cctx)))
729	return cctx;	1064	return cctx;
730		1065
731	cctx_destroy (cctx);	1066	cctx_destroy (cctx);
732	}	1067	}
733		1068
734	PL_op = PL_op->op_next;
735	return cctx_new ();	1069	return cctx_new ();
736	}	1070	}
737		1071
738	static void	1072	static void
739	cctx_put (coro_cctx *cctx)	1073	cctx_put (coro_cctx *cctx)
740	{	1074	{
741	/* free another cctx if overlimit */	1075	/* free another cctx if overlimit */
742	if (cctx_idle >= MAX_IDLE_CCTX)	1076	if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
743	{	1077	{
744	coro_cctx *first = cctx_first;	1078	coro_cctx *first = cctx_first;
745	cctx_first = first->next;	1079	cctx_first = first->next;
746	--cctx_idle;	1080	--cctx_idle;
747		1081
748	assert (!first->inuse);
749	cctx_destroy (first);	1082	cctx_destroy (first);
750	}	1083	}
751		1084
752	++cctx_idle;	1085	++cctx_idle;
753	cctx->next = cctx_first;	1086	cctx->next = cctx_first;
754	cctx_first = cctx;	1087	cctx_first = cctx;
755	}	1088	}
756		1089
757	/ coroutine switching ***************************************************/	1090	/ coroutine switching ***************************************************/
758		1091
759	/* never call directly, always through the coro_state_transfer global variable */	1092	static void
		1093	transfer_check (pTHX_ struct coro prev, struct coro next)
		1094	{
		1095	if (expect_true (prev != next))
		1096	{
		1097	if (expect_false (!(prev->flags & (CF_RUNNING \| CF_NEW))))
		1098	croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
		1099
		1100	if (expect_false (next->flags & CF_RUNNING))
		1101	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		1102
		1103	if (expect_false (next->flags & CF_DESTROYED))
		1104	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
		1105
		1106	if (
		1107	#if PERL_VERSION_ATLEAST (5,9,0)
		1108	expect_false (PL_parser)
		1109	#else
		1110	expect_false (PL_lex_state != LEX_NOTPARSING)
		1111	#endif
		1112	)
		1113	croak ("Coro::State::transfer called while parsing, but this is not supported");
		1114	}
		1115	}
		1116
		1117	/* always use the TRANSFER macro */
760	static void NOINLINE	1118	static void NOINLINE
761	transfer (pTHX_ struct coro prev, struct coro next)	1119	transfer (pTHX_ struct coro prev, struct coro next)
762	{	1120	{
763	dSTACKLEVEL;	1121	dSTACKLEVEL;
764		1122
765	/* sometimes transfer is only called to set idle_sp */	1123	/* sometimes transfer is only called to set idle_sp */
766	if (!next)	1124	if (expect_false (!next))
767	{	1125	{
768	((coro_cctx *)prev)->idle_sp = STACKLEVEL;	1126	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
769	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */	1127	assert (((coro_cctx )prev)->idle_te = PL_top_env); / just for the side-effect when asserts are enabled */
770	}	1128	}
771	else if (prev != next)	1129	else if (expect_true (prev != next))
772	{	1130	{
773	coro_cctx *prev__cctx;	1131	coro_cctx *prev__cctx;
774		1132
775	if (prev->flags & CF_NEW)	1133	if (expect_false (prev->flags & CF_NEW))
776	{	1134	{
777	/* create a new empty context */	1135	/* create a new empty context */
778	Newz (0, prev->cctx, 1, coro_cctx);	1136	Newz (0, prev->cctx, 1, coro_cctx);
779	prev->cctx->inuse = 1;
780	prev->flags &= ~CF_NEW;	1137	prev->flags &= ~CF_NEW;
781	prev->flags \|= CF_RUNNING;	1138	prev->flags \|= CF_RUNNING;
782	}	1139	}
783		1140
784	/TODO: must not croak here /
785	if (!prev->flags & CF_RUNNING)
786	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
787
788	if (next->flags & CF_RUNNING)
789	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
790
791	if (next->flags & CF_DESTROYED)
792	croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
793
794	prev->flags &= ~CF_RUNNING;	1141	prev->flags &= ~CF_RUNNING;
795	next->flags \|= CF_RUNNING;	1142	next->flags \|= CF_RUNNING;
796		1143
797	LOCK;	1144	LOCK;
798		1145
		1146	/* first get rid of the old state */
		1147	save_perl (aTHX_ prev);
		1148
799	if (next->flags & CF_NEW)	1149	if (expect_false (next->flags & CF_NEW))
800	{	1150	{
801	/* need to start coroutine */	1151	/* need to start coroutine */
802	next->flags &= ~CF_NEW;	1152	next->flags &= ~CF_NEW;
803	/* first get rid of the old state */
804	save_perl (aTHX_ prev);
805	/* setup coroutine call */	1153	/* setup coroutine call */
806	setup_coro (aTHX_ next);	1154	coro_setup (aTHX_ next);
807	/* need a new stack */
808	assert (!next->cctx);
809	}	1155	}
810	else	1156	else
811	{
812	/* coroutine already started */
813	save_perl (aTHX_ prev);
814	load_perl (aTHX_ next);	1157	load_perl (aTHX_ next);
815	}
816		1158
817	prev__cctx = prev->cctx;	1159	prev__cctx = prev->cctx;
818		1160
819	/* possibly "free" the cctx */	1161	/* possibly "free" the cctx */
820	if (prev__cctx->idle_sp == STACKLEVEL)	1162	if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
821	{	1163	{
822	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	1164	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
823	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	1165	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
824		1166
825	prev->cctx = 0;	1167	prev->cctx = 0;
826		1168
		1169	/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
		1170	/* without this the next cctx_get might destroy the prev__cctx while still in use */
		1171	if (expect_false (CCTX_EXPIRED (prev__cctx)))
		1172	if (!next->cctx)
		1173	next->cctx = cctx_get (aTHX);
		1174
827	cctx_put (prev__cctx);	1175	cctx_put (prev__cctx);
828	prev__cctx->inuse = 0;
829	}	1176	}
830		1177
		1178	++next->usecount;
		1179
831	if (!next->cctx)	1180	if (expect_true (!next->cctx))
832	{
833	next->cctx = cctx_get (aTHX);	1181	next->cctx = cctx_get (aTHX);
834	assert (!next->cctx->inuse);
835	next->cctx->inuse = 1;
836	}
837		1182
838	if (prev__cctx != next->cctx)	1183	if (expect_false (prev__cctx != next->cctx))
839	{	1184	{
840	prev__cctx->top_env = PL_top_env;	1185	prev__cctx->top_env = PL_top_env;
841	PL_top_env = next->cctx->top_env;	1186	PL_top_env = next->cctx->top_env;
842	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	1187	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
843	}	1188	}
844		1189
845	free_coro_mortal (aTHX);	1190	free_coro_mortal (aTHX);
846	UNLOCK;	1191	UNLOCK;
		1192
		1193	if (expect_false (prev->throw \|\| next->throw))
		1194	{
		1195	struct coro *coro = SvSTATE (coro_current);
		1196
		1197	if (coro->throw)
		1198	{
		1199	SV *exception = coro->throw;
		1200	coro->throw = 0;
		1201	sv_setsv (ERRSV, exception);
		1202	croak (0);
		1203	}
		1204	}
847	}	1205	}
848	}	1206	}
849		1207
850	struct transfer_args	1208	struct transfer_args
851	{	1209	{
852	struct coro prev, next;	1210	struct coro prev, next;
853	};	1211	};
854		1212
855	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)	1213	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
		1214	#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
856		1215
857	/ high level stuff ******************************************************/	1216	/ high level stuff ******************************************************/
858		1217
859	static int	1218	static int
860	coro_state_destroy (pTHX_ struct coro *coro)	1219	coro_state_destroy (pTHX_ struct coro *coro)
…		…
877		1236
878	if (coro->mainstack && coro->mainstack != main_mainstack)	1237	if (coro->mainstack && coro->mainstack != main_mainstack)
879	{	1238	{
880	struct coro temp;	1239	struct coro temp;
881		1240
882	assert (!(coro->flags & CF_RUNNING));
883
884	Zero (&temp, 1, struct coro);
885	temp.save = CORO_SAVE_ALL;
886
887	if (coro->flags & CF_RUNNING)	1241	if (coro->flags & CF_RUNNING)
888	croak ("FATAL: tried to destroy currently running coroutine");	1242	croak ("FATAL: tried to destroy currently running coroutine");
889		1243
890	save_perl (aTHX_ &temp);	1244	save_perl (aTHX_ &temp);
891	load_perl (aTHX_ coro);	1245	load_perl (aTHX_ coro);
892		1246
893	coro_destroy_stacks (aTHX);	1247	coro_destroy (aTHX_ coro);
894		1248
895	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */	1249	load_perl (aTHX_ &temp);
896		1250
897	coro->mainstack = 0;	1251	coro->slot = 0;
898	}	1252	}
899		1253
900	cctx_destroy (coro->cctx);	1254	cctx_destroy (coro->cctx);
901	SvREFCNT_dec (coro->args);	1255	SvREFCNT_dec (coro->args);
902		1256
903	if (coro->next) coro->next->prev = coro->prev;	1257	if (coro->next) coro->next->prev = coro->prev;
904	if (coro->prev) coro->prev->next = coro->next;	1258	if (coro->prev) coro->prev->next = coro->next;
905	if (coro == first) first = coro->next;	1259	if (coro == coro_first) coro_first = coro->next;
906		1260
907	return 1;	1261	return 1;
908	}	1262	}
909		1263
910	static int	1264	static int
…		…
943	#else	1297	#else
944	# define MGf_DUP 0	1298	# define MGf_DUP 0
945	#endif	1299	#endif
946	};	1300	};
947		1301
948	static struct coro *
949	SvSTATE_ (pTHX_ SV *coro)
950	{
951	HV *stash;
952	MAGIC *mg;
953
954	if (SvROK (coro))
955	coro = SvRV (coro);
956
957	stash = SvSTASH (coro);
958	if (stash != coro_stash && stash != coro_state_stash)
959	{
960	/* very slow, but rare, check */
961	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
962	croak ("Coro::State object required");
963	}
964
965	mg = CORO_MAGIC (coro);
966	return (struct coro *)mg->mg_ptr;
967	}
968
969	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
970
971	static void	1302	static void
972	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)	1303	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
973	{	1304	{
974	ta->prev = SvSTATE (prev_sv);	1305	ta->prev = SvSTATE (prev_sv);
975	ta->next = SvSTATE (next_sv);	1306	ta->next = SvSTATE (next_sv);
		1307	TRANSFER_CHECK (*ta);
976	}	1308	}
977		1309
978	static void	1310	static void
979	api_transfer (SV prev_sv, SV next_sv)	1311	api_transfer (SV prev_sv, SV next_sv)
980	{	1312	{
981	dTHX;	1313	dTHX;
982	struct transfer_args ta;	1314	struct transfer_args ta;
983		1315
984	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);	1316	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
985	TRANSFER (ta);	1317	TRANSFER (ta);
986	}
987
988	static int
989	api_save (SV *coro_sv, int new_save)
990	{
991	dTHX;
992	struct coro *coro = SvSTATE (coro_sv);
993	int old_save = coro->save;
994
995	if (new_save >= 0)
996	coro->save = new_save;
997
998	return old_save;
999	}	1318	}
1000		1319
1001	/ Coro ******************************************************************/	1320	/ Coro ******************************************************************/
1002		1321
1003	static void	1322	static void
…		…
1062	{	1381	{
1063	LOCK;	1382	LOCK;
1064	next_sv = coro_deq (aTHX_ PRIO_MIN);	1383	next_sv = coro_deq (aTHX_ PRIO_MIN);
1065		1384
1066	/* nothing to schedule: call the idle handler */	1385	/* nothing to schedule: call the idle handler */
1067	if (!next_sv)	1386	if (expect_false (!next_sv))
1068	{	1387	{
1069	dSP;	1388	dSP;
1070	UNLOCK;	1389	UNLOCK;
1071		1390
1072	ENTER;	1391	ENTER;
…		…
1082	}	1401	}
1083		1402
1084	ta->next = SvSTATE (next_sv);	1403	ta->next = SvSTATE (next_sv);
1085		1404
1086	/* cannot transfer to destroyed coros, skip and look for next */	1405	/* cannot transfer to destroyed coros, skip and look for next */
1087	if (ta->next->flags & CF_DESTROYED)	1406	if (expect_false (ta->next->flags & CF_DESTROYED))
1088	{	1407	{
1089	UNLOCK;	1408	UNLOCK;
1090	SvREFCNT_dec (next_sv);	1409	SvREFCNT_dec (next_sv);
1091	/* coro_nready is already taken care of by destroy */	1410	/* coro_nready is already taken care of by destroy */
1092	continue;	1411	continue;
…		…
1097	break;	1416	break;
1098	}	1417	}
1099		1418
1100	/* free this only after the transfer */	1419	/* free this only after the transfer */
1101	prev_sv = SvRV (coro_current);	1420	prev_sv = SvRV (coro_current);
1102	SvRV_set (coro_current, next_sv);
1103	ta->prev = SvSTATE (prev_sv);	1421	ta->prev = SvSTATE (prev_sv);
1104		1422	TRANSFER_CHECK (*ta);
1105	assert (ta->next->flags & CF_READY);	1423	assert (ta->next->flags & CF_READY);
1106	ta->next->flags &= ~CF_READY;	1424	ta->next->flags &= ~CF_READY;
		1425	SvRV_set (coro_current, next_sv);
1107		1426
1108	LOCK;	1427	LOCK;
1109	free_coro_mortal (aTHX);	1428	free_coro_mortal (aTHX);
1110	coro_mortal = prev_sv;	1429	coro_mortal = prev_sv;
1111	UNLOCK;	1430	UNLOCK;
…		…
1148	dTHX;	1467	dTHX;
1149	struct transfer_args ta;	1468	struct transfer_args ta;
1150		1469
1151	prepare_cede (aTHX_ &ta);	1470	prepare_cede (aTHX_ &ta);
1152		1471
1153	if (ta.prev != ta.next)	1472	if (expect_true (ta.prev != ta.next))
1154	{	1473	{
1155	TRANSFER (ta);	1474	TRANSFER (ta);
1156	return 1;	1475	return 1;
1157	}	1476	}
1158	else	1477	else
…		…
1172	}	1491	}
1173	else	1492	else
1174	return 0;	1493	return 0;
1175	}	1494	}
1176		1495
		1496	static void
		1497	api_trace (SV *coro_sv, int flags)
		1498	{
		1499	dTHX;
		1500	struct coro *coro = SvSTATE (coro_sv);
		1501
		1502	if (flags & CC_TRACE)
		1503	{
		1504	if (!coro->cctx)
		1505	coro->cctx = cctx_new ();
		1506	else if (!(coro->cctx->flags & CC_TRACE))
		1507	croak ("cannot enable tracing on coroutine with custom stack");
		1508
		1509	coro->cctx->flags \|= CC_NOREUSE \| (flags & (CC_TRACE \| CC_TRACE_ALL));
		1510	}
		1511	else if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1512	{
		1513	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1514
		1515	if (coro->flags & CF_RUNNING)
		1516	PL_runops = RUNOPS_DEFAULT;
		1517	else
		1518	coro->slot->runops = RUNOPS_DEFAULT;
		1519	}
		1520	}
		1521
1177	MODULE = Coro::State PACKAGE = Coro::State	1522	MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1178		1523
1179	PROTOTYPES: DISABLE	1524	PROTOTYPES: DISABLE
1180		1525
1181	BOOT:	1526	BOOT:
1182	{	1527	{
1183	#ifdef USE_ITHREADS	1528	#ifdef USE_ITHREADS
1184	MUTEX_INIT (&coro_mutex);	1529	MUTEX_INIT (&coro_mutex);
1185	#endif	1530	#endif
1186	BOOT_PAGESIZE;	1531	BOOT_PAGESIZE;
1187		1532
		1533	irsgv = gv_fetchpv ("/" , GV_ADD\|GV_NOTQUAL, SVt_PV);
		1534	stdoutgv = gv_fetchpv ("STDOUT", GV_ADD\|GV_NOTQUAL, SVt_PVIO);
		1535
		1536	orig_sigelem_get = PL_vtbl_sigelem.svt_get;
		1537	PL_vtbl_sigelem.svt_get = coro_sigelem_get;
		1538
		1539	hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
		1540	rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
		1541	rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
		1542
1188	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1543	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1189		1544
1190	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1545	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1191	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1546	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1192	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1193	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1194	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1195	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));	1547	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1196	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1548	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1197		1549
1198	main_mainstack = PL_mainstack;	1550	main_mainstack = PL_mainstack;
1199	main_top_env = PL_top_env;	1551	main_top_env = PL_top_env;
1200		1552
1201	while (main_top_env->je_prev)	1553	while (main_top_env->je_prev)
1202	main_top_env = main_top_env->je_prev;	1554	main_top_env = main_top_env->je_prev;
1203		1555
1204	coroapi.ver = CORO_API_VERSION;	1556	coroapi.ver = CORO_API_VERSION;
		1557	coroapi.rev = CORO_API_REVISION;
1205	coroapi.transfer = api_transfer;	1558	coroapi.transfer = api_transfer;
1206		1559
1207	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1560	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1208	}	1561	}
1209		1562
1210	SV *	1563	SV *
1211	new (char *klass, ...)	1564	new (char *klass, ...)
1212	CODE:	1565	CODE:
1213	{	1566	{
1214	struct coro *coro;	1567	struct coro *coro;
		1568	MAGIC *mg;
1215	HV *hv;	1569	HV *hv;
1216	int i;	1570	int i;
1217		1571
1218	Newz (0, coro, 1, struct coro);	1572	Newz (0, coro, 1, struct coro);
1219	coro->args = newAV ();	1573	coro->args = newAV ();
1220	coro->save = CORO_SAVE_DEF;
1221	coro->flags = CF_NEW;	1574	coro->flags = CF_NEW;
1222		1575
1223	if (first) first->prev = coro;	1576	if (coro_first) coro_first->prev = coro;
1224	coro->next = first;	1577	coro->next = coro_first;
1225	first = coro;	1578	coro_first = coro;
1226		1579
1227	coro->hv = hv = newHV ();	1580	coro->hv = hv = newHV ();
1228	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1581	mg = sv_magicext ((SV )hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char )coro, 0);
		1582	mg->mg_flags \|= MGf_DUP;
1229	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1583	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1230		1584
		1585	av_extend (coro->args, items - 1);
1231	for (i = 1; i < items; i++)	1586	for (i = 1; i < items; i++)
1232	av_push (coro->args, newSVsv (ST (i)));	1587	av_push (coro->args, newSVsv (ST (i)));
1233	}	1588	}
1234	OUTPUT:	1589	OUTPUT:
1235	RETVAL	1590	RETVAL
1236		1591
1237	int	1592	# these not obviously related functions are all rolled into the same xs
1238	save (SV *coro, int new_save = -1)	1593	# function to increase chances that they all will call transfer with the same
1239	CODE:	1594	# stack offset
1240	RETVAL = api_save (coro, new_save);
1241	OUTPUT:
1242	RETVAL
1243
1244	int
1245	save_also (SV *coro_sv, int save_also)
1246	CODE:
1247	{
1248	struct coro *coro = SvSTATE (coro_sv);
1249	RETVAL = coro->save;
1250	coro->save \|= save_also;
1251	}
1252	OUTPUT:
1253	RETVAL
1254
1255	void	1595	void
1256	_set_stacklevel (...)	1596	_set_stacklevel (...)
1257	ALIAS:	1597	ALIAS:
1258	Coro::State::transfer = 1	1598	Coro::State::transfer = 1
1259	Coro::schedule = 2	1599	Coro::schedule = 2
…		…
1291		1631
1292	break;	1632	break;
1293	}	1633	}
1294		1634
1295	BARRIER;	1635	BARRIER;
		1636	PUTBACK;
1296	TRANSFER (ta);	1637	TRANSFER (ta);
1297		1638	SPAGAIN; /* might be the sp of a different coroutine now */
1298	if (GIMME_V != G_VOID && ta.next != ta.prev)	1639	/* be extra careful not to ever do anything after TRANSFER */
1299	XSRETURN_YES;
1300	}	1640	}
1301		1641
1302	bool	1642	bool
1303	_destroy (SV *coro_sv)	1643	_destroy (SV *coro_sv)
1304	CODE:	1644	CODE:
…		…
1339	void	1679	void
1340	list ()	1680	list ()
1341	PPCODE:	1681	PPCODE:
1342	{	1682	{
1343	struct coro *coro;	1683	struct coro *coro;
1344	for (coro = first; coro; coro = coro->next)	1684	for (coro = coro_first; coro; coro = coro->next)
1345	if (coro->hv)	1685	if (coro->hv)
1346	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));	1686	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1347	}	1687	}
1348		1688
1349	void	1689	void
1350	_eval (SV coro_sv, SV coderef)	1690	call (Coro::State coro, SV *coderef)
		1691	ALIAS:
		1692	eval = 1
1351	CODE:	1693	CODE:
1352	{	1694	{
1353	struct coro *coro = SvSTATE (coro_sv);
1354	if (coro->mainstack)	1695	if (coro->mainstack)
1355	{	1696	{
1356	struct coro temp;	1697	struct coro temp;
1357	Zero (&temp, 1, struct coro);
1358	temp.save = CORO_SAVE_ALL;
1359		1698
1360	if (!(coro->flags & CF_RUNNING))	1699	if (!(coro->flags & CF_RUNNING))
1361	{	1700	{
1362	save_perl (aTHX_ &temp);	1701	save_perl (aTHX_ &temp);
1363	load_perl (aTHX_ coro);	1702	load_perl (aTHX_ coro);
…		…
1365		1704
1366	{	1705	{
1367	dSP;	1706	dSP;
1368	ENTER;	1707	ENTER;
1369	SAVETMPS;	1708	SAVETMPS;
		1709	PUTBACK;
		1710	PUSHSTACK;
1370	PUSHMARK (SP);	1711	PUSHMARK (SP);
1371	PUTBACK;	1712
		1713	if (ix)
		1714	eval_sv (coderef, 0);
		1715	else
1372	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);	1716	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1717
		1718	POPSTACK;
1373	SPAGAIN;	1719	SPAGAIN;
1374	FREETMPS;	1720	FREETMPS;
1375	LEAVE;	1721	LEAVE;
1376	PUTBACK;	1722	PUTBACK;
1377	}	1723	}
…		…
1381	save_perl (aTHX_ coro);	1727	save_perl (aTHX_ coro);
1382	load_perl (aTHX_ &temp);	1728	load_perl (aTHX_ &temp);
1383	}	1729	}
1384	}	1730	}
1385	}	1731	}
1386		1732
1387	SV *	1733	SV *
1388	is_ready (SV *coro_sv)	1734	is_ready (Coro::State coro)
1389	PROTOTYPE: $	1735	PROTOTYPE: $
1390	ALIAS:	1736	ALIAS:
1391	is_ready = CF_READY	1737	is_ready = CF_READY
1392	is_running = CF_RUNNING	1738	is_running = CF_RUNNING
1393	is_new = CF_NEW	1739	is_new = CF_NEW
1394	is_destroyed = CF_DESTROYED	1740	is_destroyed = CF_DESTROYED
1395	CODE:	1741	CODE:
1396	struct coro *coro = SvSTATE (coro_sv);
1397	RETVAL = boolSV (coro->flags & ix);	1742	RETVAL = boolSV (coro->flags & ix);
1398	OUTPUT:	1743	OUTPUT:
1399	RETVAL	1744	RETVAL
1400		1745
		1746	void
		1747	api_trace (SV *coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1748
		1749	SV *
		1750	has_stack (Coro::State coro)
		1751	PROTOTYPE: $
		1752	CODE:
		1753	RETVAL = boolSV (!!coro->cctx);
		1754	OUTPUT:
		1755	RETVAL
		1756
		1757	int
		1758	is_traced (Coro::State coro)
		1759	PROTOTYPE: $
		1760	CODE:
		1761	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1762	OUTPUT:
		1763	RETVAL
		1764
		1765	IV
		1766	rss (Coro::State coro)
		1767	PROTOTYPE: $
		1768	ALIAS:
		1769	usecount = 1
		1770	CODE:
		1771	switch (ix)
		1772	{
		1773	case 0: RETVAL = coro_rss (aTHX_ coro); break;
		1774	case 1: RETVAL = coro->usecount; break;
		1775	}
		1776	OUTPUT:
		1777	RETVAL
		1778
1401		1779
1402	MODULE = Coro::State PACKAGE = Coro	1780	MODULE = Coro::State PACKAGE = Coro
1403		1781
1404	BOOT:	1782	BOOT:
1405	{	1783	{
1406	int i;	1784	int i;
1407		1785
		1786	sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
		1787	sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
		1788	av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
		1789
		1790	coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
		1791	SvREADONLY_on (coro_current);
		1792
1408	coro_stash = gv_stashpv ("Coro", TRUE);	1793	coro_stash = gv_stashpv ("Coro", TRUE);
1409		1794
1410	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1795	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1411	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1796	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1412	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1797	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1413	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1798	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1414	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1799	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1415	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1800	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1416		1801
1417	coro_current = get_sv ("Coro::current", FALSE);
1418	SvREADONLY_on (coro_current);
1419
1420	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1802	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1421	coro_ready[i] = newAV ();	1803	coro_ready[i] = newAV ();
1422		1804
1423	{	1805	{
1424	SV *sv = perl_get_sv("Coro::API", 1);	1806	SV *sv = perl_get_sv ("Coro::API", TRUE);
		1807	perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1425		1808
1426	coroapi.schedule = api_schedule;	1809	coroapi.schedule = api_schedule;
1427	coroapi.save = api_save;
1428	coroapi.cede = api_cede;	1810	coroapi.cede = api_cede;
1429	coroapi.cede_notself = api_cede_notself;	1811	coroapi.cede_notself = api_cede_notself;
1430	coroapi.ready = api_ready;	1812	coroapi.ready = api_ready;
1431	coroapi.is_ready = api_is_ready;	1813	coroapi.is_ready = api_is_ready;
1432	coroapi.nready = &coro_nready;	1814	coroapi.nready = &coro_nready;
…		…
1481	CODE:	1863	CODE:
1482	RETVAL = coro_nready;	1864	RETVAL = coro_nready;
1483	OUTPUT:	1865	OUTPUT:
1484	RETVAL	1866	RETVAL
1485		1867
		1868	void
		1869	throw (Coro::State self, SV *throw = &PL_sv_undef)
		1870	PROTOTYPE: $;$
		1871	CODE:
		1872	SvREFCNT_dec (self->throw);
		1873	self->throw = SvOK (throw) ? newSVsv (throw) : 0;
		1874
		1875	# for async_pool speedup
		1876	void
		1877	_pool_1 (SV *cb)
		1878	CODE:
		1879	{
		1880	struct coro *coro = SvSTATE (coro_current);
		1881	HV hv = (HV )SvRV (coro_current);
		1882	AV *defav = GvAV (PL_defgv);
		1883	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1884	AV *invoke_av;
		1885	int i, len;
		1886
		1887	if (!invoke)
		1888	croak ("\3async_pool terminate\2\n");
		1889
		1890	SvREFCNT_dec (coro->saved_deffh);
		1891	coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
		1892
		1893	hv_store (hv, "desc", sizeof ("desc") - 1,
		1894	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1895
		1896	invoke_av = (AV *)SvRV (invoke);
		1897	len = av_len (invoke_av);
		1898
		1899	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1900
		1901	if (len > 0)
		1902	{
		1903	av_fill (defav, len - 1);
		1904	for (i = 0; i < len; ++i)
		1905	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1906	}
		1907
		1908	SvREFCNT_dec (invoke);
		1909	}
		1910
		1911	void
		1912	_pool_2 (SV *cb)
		1913	CODE:
		1914	{
		1915	struct coro *coro = SvSTATE (coro_current);
		1916
		1917	sv_setsv (cb, &PL_sv_undef);
		1918
		1919	SvREFCNT_dec ((SV )PL_defoutgv); PL_defoutgv = (GV )coro->saved_deffh;
		1920	coro->saved_deffh = 0;
		1921
		1922	if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
		1923	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1924	croak ("\3async_pool terminate\2\n");
		1925
		1926	av_clear (GvAV (PL_defgv));
		1927	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1928	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1929
		1930	coro->prio = 0;
		1931
		1932	if (coro->cctx && (coro->cctx->flags & CC_TRACE))
		1933	api_trace (coro_current, 0);
		1934
		1935	av_push (av_async_pool, newSVsv (coro_current));
		1936	}
		1937
		1938
1486	MODULE = Coro::State PACKAGE = Coro::AIO	1939	MODULE = Coro::State PACKAGE = Coro::AIO
1487		1940
1488	SV *	1941	SV *
1489	_get_state ()	1942	_get_state ()
1490	CODE:	1943	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC vs. Revision 1.214 by root, Sat Oct 13 23:19:10 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.151 by root, Wed Sep 19 21:39:15 2007 UTC vs.
Revision 1.214 by root, Sat Oct 13 23:19:10 2007 UTC