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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs.
Revision 1.168 by root, Thu Sep 27 16:10:48 2007 UTC

…		…
1	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
		2
		3	#define PERL_NO_GET_CONTEXT
2		4
3	#include "EXTERN.h"	5	#include "EXTERN.h"
4	#include "perl.h"	6	#include "perl.h"
5	#include "XSUB.h"	7	#include "XSUB.h"
6		8
31	#else	33	#else
32	# define PAGESIZE 0	34	# define PAGESIZE 0
33	# define BOOT_PAGESIZE (void)0	35	# define BOOT_PAGESIZE (void)0
34	#endif	36	#endif
35		37
36	#if USE_VALGRIND	38	#if CORO_USE_VALGRIND
37	# include <valgrind/valgrind.h>	39	# include <valgrind/valgrind.h>
38	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))	40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
39	#else	41	#else
40	# define REGISTER_STACK(cctx,start,end)	42	# define REGISTER_STACK(cctx,start,end)
41	#endif	43	#endif
…		…
74	#ifndef SvRV_set	76	#ifndef SvRV_set
75	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
76	#endif	78	#endif
77		79
78	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
79	# undef STACKGUARD	81	# undef CORO_STACKGUARD
80	#endif	82	#endif
81		83
82	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
83	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
84	#endif	86	#endif
85		87
86	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
87	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
88	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
89	#endif	91	#endif
90		92
91	/* The next macro should declare a variable stacklevel that contains and approximation	93	/* The next macros try to return the current stack pointer, in an as
92	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
93	* and should be unique. */
94	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
95	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
96		97
97	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
98		99
99	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
124	I32 laststype;	125	I32 laststype;
125	int laststatval;	126	int laststatval;
126	Stat_t statcache;	127	Stat_t statcache;
127	};	128	};
128		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
129	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
130	static AV main_mainstack; / used to differentiate between $main and others */	132	static AV main_mainstack; / used to differentiate between $main and others */
		133	static JMPENV *main_top_env;
131	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
132	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
133		136
		137	/* async_pool helper stuff */
		138	static SV *sv_pool_rss;
		139	static SV *sv_pool_size;
		140	static AV *av_async_pool;
		141
134	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
135	static int cctx_count, cctx_idle;	143	static int cctx_count, cctx_idle;
		144
		145	enum {
		146	CC_MAPPED = 0x01,
		147	CC_NOREUSE = 0x02, /* throw this away after tracing */
		148	CC_TRACE = 0x04,
		149	CC_TRACE_SUB = 0x08, /* trace sub calls */
		150	CC_TRACE_LINE = 0x10, /* trace each statement */
		151	CC_TRACE_ALL = CC_TRACE_SUB \| CC_TRACE_LINE,
		152	};
136		153
137	/* this is a structure representing a c-level coroutine */	154	/* this is a structure representing a c-level coroutine */
138	typedef struct coro_cctx {	155	typedef struct coro_cctx {
139	struct coro_cctx *next;	156	struct coro_cctx *next;
140		157
141	/* the stack */	158	/* the stack */
142	void *sptr;	159	void *sptr;
143	ssize_t ssize; /* positive == mmap, otherwise malloc */	160	size_t ssize;
144		161
145	/* cpu state */	162	/* cpu state */
146	void idle_sp; / sp of top-level transfer/schedule/cede call */	163	void idle_sp; / sp of top-level transfer/schedule/cede call */
147	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */	164	JMPENV idle_te; / same as idle_sp, but for top_env, TODO: remove once stable */
148	JMPENV *top_env;	165	JMPENV *top_env;
149	coro_context cctx;	166	coro_context cctx;
150		167
151	int inuse;
152
153	#if USE_VALGRIND	168	#if CORO_USE_VALGRIND
154	int valgrind_id;	169	int valgrind_id;
155	#endif	170	#endif
		171	unsigned char flags;
156	} coro_cctx;	172	} coro_cctx;
157		173
158	enum {	174	enum {
159	CF_RUNNING = 0x0001, /* coroutine is running */	175	CF_RUNNING = 0x0001, /* coroutine is running */
160	CF_READY = 0x0002, /* coroutine is ready */	176	CF_READY = 0x0002, /* coroutine is ready */
…		…
175		191
176	/* optionally saved, might be zero */	192	/* optionally saved, might be zero */
177	AV defav; / @_ */	193	AV defav; / @_ */
178	SV defsv; / $_ */	194	SV defsv; / $_ */
179	SV errsv; / $@ */	195	SV errsv; / $@ */
		196	GV deffh; / default filehandle */
180	SV irssv; / $/ */	197	SV irssv; / $/ */
181	SV irssv_sv; / real $/ cache */	198	SV irssv_sv; / real $/ cache */
182		199
183	#define VAR(name,type) type name;	200	#define VAR(name,type) type name;
184	# include "state.h"	201	# include "state.h"
185	#undef VAR	202	#undef VAR
186		203
187	/* coro process data */	204	/* coro process data */
188	int prio;	205	int prio;
		206
		207	/* linked list */
		208	struct coro next, prev;
		209	HV hv; / the perl hash associated with this coro, if any */
189	};	210	};
190		211
191	typedef struct coro *Coro__State;	212	typedef struct coro *Coro__State;
192	typedef struct coro *Coro__State_or_hashref;	213	typedef struct coro *Coro__State_or_hashref;
193		214
…		…
202		223
203	/* for Coro.pm */	224	/* for Coro.pm */
204	static SV *coro_current;	225	static SV *coro_current;
205	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	226	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
206	static int coro_nready;	227	static int coro_nready;
		228	static struct coro *coro_first;
207		229
208	/ lowlevel stuff ********************************************************/	230	/ lowlevel stuff ********************************************************/
209		231
210	static AV *	232	static AV *
211	coro_clone_padlist (CV *cv)	233	coro_clone_padlist (pTHX_ CV *cv)
212	{	234	{
213	AV *padlist = CvPADLIST (cv);	235	AV *padlist = CvPADLIST (cv);
214	AV newpadlist, newpad;	236	AV newpadlist, newpad;
215		237
216	newpadlist = newAV ();	238	newpadlist = newAV ();
…		…
228		250
229	return newpadlist;	251	return newpadlist;
230	}	252	}
231		253
232	static void	254	static void
233	free_padlist (AV *padlist)	255	free_padlist (pTHX_ AV *padlist)
234	{	256	{
235	/* may be during global destruction */	257	/* may be during global destruction */
236	if (SvREFCNT (padlist))	258	if (SvREFCNT (padlist))
237	{	259	{
238	I32 i = AvFILLp (padlist);	260	I32 i = AvFILLp (padlist);
…		…
259	AV *padlist;	281	AV *padlist;
260	AV av = (AV )mg->mg_obj;	282	AV av = (AV )mg->mg_obj;
261		283
262	/* casting is fun. */	284	/* casting is fun. */
263	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	285	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
264	free_padlist (padlist);	286	free_padlist (aTHX_ padlist);
265		287
266	SvREFCNT_dec (av);	288	SvREFCNT_dec (av);
267		289
268	return 0;	290	return 0;
269	}	291	}
…		…
279	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	301	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
280	: 0	302	: 0
281		303
282	/* the next two functions merely cache the padlists */	304	/* the next two functions merely cache the padlists */
283	static void	305	static void
284	get_padlist (CV *cv)	306	get_padlist (pTHX_ CV *cv)
285	{	307	{
286	MAGIC *mg = CORO_MAGIC (cv);	308	MAGIC *mg = CORO_MAGIC (cv);
287	AV *av;	309	AV *av;
288		310
289	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	311	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
290	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	312	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
291	else	313	else
292	{	314	{
293	#if PREFER_PERL_FUNCTIONS	315	#if CORO_PREFER_PERL_FUNCTIONS
294	/* this is probably cleaner, but also slower? */	316	/* this is probably cleaner, but also slower? */
295	CV *cp = Perl_cv_clone (cv);	317	CV *cp = Perl_cv_clone (cv);
296	CvPADLIST (cv) = CvPADLIST (cp);	318	CvPADLIST (cv) = CvPADLIST (cp);
297	CvPADLIST (cp) = 0;	319	CvPADLIST (cp) = 0;
298	SvREFCNT_dec (cp);	320	SvREFCNT_dec (cp);
299	#else	321	#else
300	CvPADLIST (cv) = coro_clone_padlist (cv);	322	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
301	#endif	323	#endif
302	}	324	}
303	}	325	}
304		326
305	static void	327	static void
306	put_padlist (CV *cv)	328	put_padlist (pTHX_ CV *cv)
307	{	329	{
308	MAGIC *mg = CORO_MAGIC (cv);	330	MAGIC *mg = CORO_MAGIC (cv);
309	AV *av;	331	AV *av;
310		332
311	if (!mg)	333	if (!mg)
…		…
330	#define SE } while (0)	352	#define SE } while (0)
331		353
332	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE	354	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
333		355
334	static void	356	static void
335	load_perl (Coro__State c)	357	load_perl (pTHX_ Coro__State c)
336	{	358	{
337	#define VAR(name,type) PL_ ## name = c->name;	359	#define VAR(name,type) PL_ ## name = c->name;
338	# include "state.h"	360	# include "state.h"
339	#undef VAR	361	#undef VAR
340		362
341	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	363	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
342	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	364	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
343	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	365	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
		366	if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
		367
344	if (c->irssv)	368	if (c->irssv)
345	{	369	{
346	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	370	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		371	{
347	SvREFCNT_dec (c->irssv);	372	SvREFCNT_dec (c->irssv);
		373	c->irssv = 0;
		374	}
348	else	375	else
349	{	376	{
350	REPLACE_SV (PL_rs, c->irssv);	377	REPLACE_SV (PL_rs, c->irssv);
351	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	378	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
352	sv_setsv (c->irssv_sv, PL_rs);	379	sv_setsv (c->irssv_sv, PL_rs);
…		…
358	CV *cv;	385	CV *cv;
359		386
360	/* now do the ugly restore mess */	387	/* now do the ugly restore mess */
361	while ((cv = (CV *)POPs))	388	while ((cv = (CV *)POPs))
362	{	389	{
363	put_padlist (cv); /* mark this padlist as available */	390	put_padlist (aTHX_ cv); /* mark this padlist as available */
364	CvDEPTH (cv) = PTR2IV (POPs);	391	CvDEPTH (cv) = PTR2IV (POPs);
365	CvPADLIST (cv) = (AV *)POPs;	392	CvPADLIST (cv) = (AV *)POPs;
366	}	393	}
367		394
368	PUTBACK;	395	PUTBACK;
369	}	396	}
370	}	397	}
371		398
372	static void	399	static void
373	save_perl (Coro__State c)	400	save_perl (pTHX_ Coro__State c)
374	{	401	{
375	{	402	{
376	dSP;	403	dSP;
377	I32 cxix = cxstack_ix;	404	I32 cxix = cxstack_ix;
378	PERL_CONTEXT *ccstk = cxstack;	405	PERL_CONTEXT *ccstk = cxstack;
…		…
381	/*	408	/*
382	* the worst thing you can imagine happens first - we have to save	409	* the worst thing you can imagine happens first - we have to save
383	* (and reinitialize) all cv's in the whole callchain :(	410	* (and reinitialize) all cv's in the whole callchain :(
384	*/	411	*/
385		412
386	EXTEND (SP, 3 + 1);
387	PUSHs (Nullsv);	413	XPUSHs (Nullsv);
388	/* this loop was inspired by pp_caller */	414	/* this loop was inspired by pp_caller */
389	for (;;)	415	for (;;)
390	{	416	{
391	while (cxix >= 0)	417	while (cxix >= 0)
392	{	418	{
393	PERL_CONTEXT *cx = &ccstk[cxix--];	419	PERL_CONTEXT *cx = &ccstk[cxix--];
394		420
395	if (CxTYPE (cx) == CXt_SUB)	421	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
396	{	422	{
397	CV *cv = cx->blk_sub.cv;	423	CV *cv = cx->blk_sub.cv;
398		424
399	if (CvDEPTH (cv))	425	if (CvDEPTH (cv))
400	{	426	{
…		…
402	PUSHs ((SV *)CvPADLIST (cv));	428	PUSHs ((SV *)CvPADLIST (cv));
403	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	429	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
404	PUSHs ((SV *)cv);	430	PUSHs ((SV *)cv);
405		431
406	CvDEPTH (cv) = 0;	432	CvDEPTH (cv) = 0;
407	get_padlist (cv);	433	get_padlist (aTHX_ cv);
408	}	434	}
409	}	435	}
410	}	436	}
411		437
412	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
413	break;	439	break;
414		440
415	top_si = top_si->si_prev;	441	top_si = top_si->si_prev;
416	ccstk = top_si->si_cxstack;	442	ccstk = top_si->si_cxstack;
417	cxix = top_si->si_cxix;	443	cxix = top_si->si_cxix;
418	}	444	}
419		445
420	PUTBACK;	446	PUTBACK;
421	}	447	}
422		448
423	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	449	c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
424	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	450	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
425	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	451	c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
		452	c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
426	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;	453	c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
427		454
428	#define VAR(name,type)c->name = PL_ ## name;	455	#define VAR(name,type)c->name = PL_ ## name;
429	# include "state.h"	456	# include "state.h"
430	#undef VAR	457	#undef VAR
…		…
434	* allocate various perl stacks. This is an exact copy	461	* allocate various perl stacks. This is an exact copy
435	* of perl.c:init_stacks, except that it uses less memory	462	* of perl.c:init_stacks, except that it uses less memory
436	* on the (sometimes correct) assumption that coroutines do	463	* on the (sometimes correct) assumption that coroutines do
437	* not usually need a lot of stackspace.	464	* not usually need a lot of stackspace.
438	*/	465	*/
439	#if PREFER_PERL_FUNCTIONS	466	#if CORO_PREFER_PERL_FUNCTIONS
440	# define coro_init_stacks init_stacks	467	# define coro_init_stacks init_stacks
441	#else	468	#else
442	static void	469	static void
443	coro_init_stacks ()	470	coro_init_stacks (pTHX)
444	{	471	{
445	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	472	PL_curstackinfo = new_stackinfo(64, 6);
446	PL_curstackinfo->si_type = PERLSI_MAIN;	473	PL_curstackinfo->si_type = PERLSI_MAIN;
447	PL_curstack = PL_curstackinfo->si_stack;	474	PL_curstack = PL_curstackinfo->si_stack;
448	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	475	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
449		476
450	PL_stack_base = AvARRAY(PL_curstack);	477	PL_stack_base = AvARRAY(PL_curstack);
451	PL_stack_sp = PL_stack_base;	478	PL_stack_sp = PL_stack_base;
452	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	479	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
453		480
454	New(50,PL_tmps_stack,128,SV*);	481	New(50,PL_tmps_stack,64,SV*);
455	PL_tmps_floor = -1;	482	PL_tmps_floor = -1;
456	PL_tmps_ix = -1;	483	PL_tmps_ix = -1;
457	PL_tmps_max = 128;	484	PL_tmps_max = 64;
458		485
459	New(54,PL_markstack,32,I32);	486	New(54,PL_markstack,16,I32);
460	PL_markstack_ptr = PL_markstack;	487	PL_markstack_ptr = PL_markstack;
461	PL_markstack_max = PL_markstack + 32;	488	PL_markstack_max = PL_markstack + 16;
462		489
463	#ifdef SET_MARK_OFFSET	490	#ifdef SET_MARK_OFFSET
464	SET_MARK_OFFSET;	491	SET_MARK_OFFSET;
465	#endif	492	#endif
466		493
467	New(54,PL_scopestack,32,I32);	494	New(54,PL_scopestack,16,I32);
468	PL_scopestack_ix = 0;	495	PL_scopestack_ix = 0;
469	PL_scopestack_max = 32;	496	PL_scopestack_max = 16;
470		497
471	New(54,PL_savestack,64,ANY);	498	New(54,PL_savestack,64,ANY);
472	PL_savestack_ix = 0;	499	PL_savestack_ix = 0;
473	PL_savestack_max = 64;	500	PL_savestack_max = 64;
474		501
475	#if !PERL_VERSION_ATLEAST (5,9,0)	502	#if !PERL_VERSION_ATLEAST (5,9,0)
476	New(54,PL_retstack,16,OP*);	503	New(54,PL_retstack,4,OP*);
477	PL_retstack_ix = 0;	504	PL_retstack_ix = 0;
478	PL_retstack_max = 16;	505	PL_retstack_max = 4;
479	#endif	506	#endif
480	}	507	}
481	#endif	508	#endif
482		509
483	/*	510	/*
484	* destroy the stacks, the callchain etc...	511	* destroy the stacks, the callchain etc...
485	*/	512	*/
486	static void	513	static void
487	coro_destroy_stacks ()	514	coro_destroy_stacks (pTHX)
488	{	515	{
489	if (!IN_DESTRUCT)	516	if (!IN_DESTRUCT)
490	{	517	{
491	/* restore all saved variables and stuff */	518	/* restore all saved variables and stuff */
492	LEAVE_SCOPE (0);	519	LEAVE_SCOPE (0);
…		…
525	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
526	Safefree (PL_retstack);	553	Safefree (PL_retstack);
527	#endif	554	#endif
528	}	555	}
529		556
		557	static size_t
		558	coro_rss (struct coro *coro)
		559	{
		560	size_t rss = sizeof (coro);
		561
		562	if (coro->mainstack)
		563	{
		564	if (coro->flags & CF_RUNNING)
		565	{
		566	#define VAR(name,type)coro->name = PL_ ## name;
		567	# include "state.h"
		568	#undef VAR
		569	}
		570
		571	rss += sizeof (coro->curstackinfo);
		572	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
		573	rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
		574	rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
		575	rss += coro->tmps_max * sizeof (SV *);
		576	rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
		577	rss += coro->scopestack_max * sizeof (I32);
		578	rss += coro->savestack_max * sizeof (ANY);
		579
		580	#if !PERL_VERSION_ATLEAST (5,9,0)
		581	rss += coro->retstack_max * sizeof (OP *);
		582	#endif
		583	}
		584
		585	return rss;
		586	}
		587
530	/ coroutine stack handling **********************************************/	588	/ coroutine stack handling **********************************************/
531		589
532	static void	590	static void
533	setup_coro (struct coro *coro)	591	setup_coro (pTHX_ struct coro *coro)
534	{	592	{
535	/*	593	/*
536	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
537	*/	595	*/
538
539	coro_init_stacks ();	596	coro_init_stacks (aTHX);
540		597
541	PL_curcop = &PL_compiling;	598	PL_curcop = &PL_compiling;
542	PL_in_eval = EVAL_NULL;	599	PL_in_eval = EVAL_NULL;
		600	PL_comppad = 0;
543	PL_curpm = 0;	601	PL_curpm = 0;
544	PL_localizing = 0;	602	PL_localizing = 0;
545	PL_dirty = 0;	603	PL_dirty = 0;
546	PL_restartop = 0;	604	PL_restartop = 0;
547		605
…		…
555	Zero (&myop, 1, LOGOP);	613	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	614	myop.op_next = Nullop;
557	myop.op_flags = OPf_WANT_VOID;	615	myop.op_flags = OPf_WANT_VOID;
558		616
559	PUSHMARK (SP);	617	PUSHMARK (SP);
560	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	618	XPUSHs (av_shift (GvAV (PL_defgv)));
561	PUTBACK;	619	PUTBACK;
562	PL_op = (OP *)&myop;	620	PL_op = (OP *)&myop;
563	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	621	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
564	SPAGAIN;	622	SPAGAIN;
565	}	623	}
566		624
567	ENTER; /* necessary e.g. for dounwind */	625	ENTER; /* necessary e.g. for dounwind */
568	}	626	}
569		627
570	static void	628	static void
571	free_coro_mortal ()	629	free_coro_mortal (pTHX)
572	{	630	{
573	if (coro_mortal)	631	if (coro_mortal)
574	{	632	{
575	SvREFCNT_dec (coro_mortal);	633	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	634	coro_mortal = 0;
577	}	635	}
578	}	636	}
579		637
		638	static int
		639	runops_coro (pTHX)
		640	{
		641	COP *oldcop = 0;
		642	int oldcxix = -2;
		643
		644	while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
		645	{
		646	PERL_ASYNC_CHECK ();
		647
		648	if (PL_op->op_type == OP_LEAVESUB)
		649	{
		650	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		651	SV bot, top;
		652	AV av = newAV (); / return values */
		653	runops_proc_t old_runops = PL_runops;
		654	dSP;
		655	ENTER;
		656	SAVETMPS;
		657	EXTEND (SP, 3);
		658	PL_runops = RUNOPS_DEFAULT;
		659
		660	GV *gv = CvGV (cx->blk_sub.cv);
		661	SV *fullname = sv_2mortal (newSV (0));
		662	if (isGV (gv))
		663	gv_efullname3 (fullname, gv, 0);
		664
		665	bot = PL_stack_base + cx->blk_oldsp + 1;
		666	top = cx->blk_gimme == G_ARRAY ? SP + 1
		667	: cx->blk_gimme == G_SCALAR ? bot + 1
		668	: bot;
		669
		670	while (bot < top)
		671	av_push (av, SvREFCNT_inc (*bot++));
		672
		673	PUSHMARK (SP);
		674	PUSHs (&PL_sv_no);
		675	PUSHs (fullname);
		676	PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
		677	PUTBACK;
		678	call_pv ("Coro::_do_trace_sub", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		679	SPAGAIN;
		680
		681	FREETMPS;
		682	LEAVE;
		683	PL_runops = old_runops;
		684	}
		685
		686	if (oldcop != PL_curcop)
		687	{
		688	oldcop = PL_curcop;
		689
		690	if (PL_curcop != &PL_compiling)
		691	{
		692	runops_proc_t old_runops = PL_runops;
		693	dSP;
		694	ENTER;
		695	SAVETMPS;
		696	EXTEND (SP, 3);
		697	PL_runops = RUNOPS_DEFAULT;
		698
		699	if (oldcxix != cxstack_ix)
		700	{
		701	PERL_CONTEXT *cx = &cxstack[cxstack_ix];
		702
		703	if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
		704	{
		705	GV *gv = CvGV (cx->blk_sub.cv);
		706	SV *fullname = sv_2mortal (newSV (0));
		707	if (isGV (gv))
		708	gv_efullname3 (fullname, gv, 0);
		709
		710	PUSHMARK (SP);
		711	PUSHs (&PL_sv_yes);
		712	PUSHs (fullname);
		713	PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
		714	PUTBACK;
		715	call_pv ("Coro::_do_trace_sub", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		716	SPAGAIN;
		717	}
		718
		719	oldcxix = cxstack_ix;
		720	}
		721
		722	if (0) {
		723	PUSHMARK (SP);
		724	PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
		725	PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
		726	PUTBACK;
		727	call_pv ("Coro::_do_trace_line", G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		728	SPAGAIN;
		729	}
		730
		731	FREETMPS;
		732	LEAVE;
		733	PL_runops = old_runops;
		734	}
		735	}
		736	}
		737
		738	TAINT_NOT;
		739	return 0;
		740	}
		741
580	/* inject a fake call to Coro::State::_cctx_init into the execution */	742	/* inject a fake call to Coro::State::_cctx_init into the execution */
		743	/* _cctx_init should be careful, as it could be called at almost any time */
		744	/* during execution of a perl program */
581	static void NOINLINE	745	static void NOINLINE
582	prepare_cctx (coro_cctx *cctx)	746	prepare_cctx (pTHX_ coro_cctx *cctx)
583	{	747	{
584	dSP;	748	dSP;
585	LOGOP myop;	749	LOGOP myop;
		750
		751	PL_top_env = &PL_start_env;
		752
		753	if (cctx->flags & CC_TRACE)
		754	PL_runops = runops_coro;
586		755
587	Zero (&myop, 1, LOGOP);	756	Zero (&myop, 1, LOGOP);
588	myop.op_next = PL_op;	757	myop.op_next = PL_op;
589	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	758	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
590		759
…		…
596	PL_op = (OP *)&myop;	765	PL_op = (OP *)&myop;
597	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	766	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
598	SPAGAIN;	767	SPAGAIN;
599	}	768	}
600		769
		770	/*
		771	* this is a _very_ stripped down perl interpreter ;)
		772	*/
601	static void	773	static void
602	coro_run (void *arg)	774	coro_run (void *arg)
603	{	775	{
		776	dTHX;
		777
604	/* coro_run is the alternative tail of transfer(), so unlock here. */	778	/* coro_run is the alternative tail of transfer(), so unlock here. */
605	UNLOCK;	779	UNLOCK;
606		780
607	/*	781	/* we now skip the entersub that lead to transfer() */
608	* this is a _very_ stripped down perl interpreter ;)	782	PL_op = PL_op->op_next;
609	*/
610	PL_top_env = &PL_start_env;
611		783
612	/* inject call to cctx_init */	784	/* inject a fake subroutine call to cctx_init */
613	prepare_cctx ((coro_cctx *)arg);	785	prepare_cctx (aTHX_ (coro_cctx *)arg);
614		786
615	/* somebody will hit me for both perl_run and PL_restartop */	787	/* somebody or something will hit me for both perl_run and PL_restartop */
616	PL_restartop = PL_op;	788	PL_restartop = PL_op;
617	perl_run (PL_curinterp);	789	perl_run (PL_curinterp);
618		790
619	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	791	/*
620	abort ();	792	* If perl-run returns we assume exit() was being called or the coro
		793	* fell off the end, which seems to be the only valid (non-bug)
		794	* reason for perl_run to return. We try to exit by jumping to the
		795	* bootstrap-time "top" top_env, as we cannot restore the "main"
		796	* coroutine as Coro has no such concept
		797	*/
		798	PL_top_env = main_top_env;
		799	JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
621	}	800	}
622		801
623	static coro_cctx *	802	static coro_cctx *
624	cctx_new ()	803	cctx_new ()
625	{	804	{
626	coro_cctx *cctx;	805	coro_cctx *cctx;
		806	void *stack_start;
		807	size_t stack_size;
627		808
628	++cctx_count;	809	++cctx_count;
629		810
630	Newz (0, cctx, 1, coro_cctx);	811	Newz (0, cctx, 1, coro_cctx);
631		812
632	#if HAVE_MMAP	813	#if HAVE_MMAP
633		814
634	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	815	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
635	/* mmap supposedly does allocate-on-write for us */	816	/* mmap supposedly does allocate-on-write for us */
636	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	817	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
637		818
638	if (cctx->sptr != (void *)-1)	819	if (cctx->sptr != (void *)-1)
639	{	820	{
640	# if STACKGUARD	821	# if CORO_STACKGUARD
641	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	822	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
642	# endif	823	# endif
643	REGISTER_STACK (
644	cctx,
645	STACKGUARD * PAGESIZE + (char *)cctx->sptr,	824	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
646	cctx->ssize + (char *)cctx->sptr	825	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
647	);	826	cctx->flags \|= CC_MAPPED;
648
649	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
650	}	827	}
651	else	828	else
652	#endif	829	#endif
653	{	830	{
654	cctx->ssize = -STACKSIZE * (long)sizeof (long);	831	cctx->ssize = coro_stacksize * (long)sizeof (long);
655	New (0, cctx->sptr, STACKSIZE, long);	832	New (0, cctx->sptr, coro_stacksize, long);
656		833
657	if (!cctx->sptr)	834	if (!cctx->sptr)
658	{	835	{
659	perror ("FATAL: unable to allocate stack for coroutine");	836	perror ("FATAL: unable to allocate stack for coroutine");
660	_exit (EXIT_FAILURE);	837	_exit (EXIT_FAILURE);
661	}	838	}
662		839
663	REGISTER_STACK (	840	stack_start = cctx->sptr;
664	cctx,	841	stack_size = cctx->ssize;
665	(char *)cctx->sptr,	842	}
666	(char *)cctx->sptr - cctx->ssize
667	);
668		843
		844	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
669	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, -cctx->ssize);	845	coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
670	}
671		846
672	return cctx;	847	return cctx;
673	}	848	}
674		849
675	static void	850	static void
…		…
678	if (!cctx)	853	if (!cctx)
679	return;	854	return;
680		855
681	--cctx_count;	856	--cctx_count;
682		857
683	#if USE_VALGRIND	858	#if CORO_USE_VALGRIND
684	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	859	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
685	#endif	860	#endif
686		861
687	#if HAVE_MMAP	862	#if HAVE_MMAP
688	if (cctx->ssize > 0)	863	if (cctx->flags & CC_MAPPED)
689	munmap (cctx->sptr, cctx->ssize);	864	munmap (cctx->sptr, cctx->ssize);
690	else	865	else
691	#endif	866	#endif
692	Safefree (cctx->sptr);	867	Safefree (cctx->sptr);
693		868
694	Safefree (cctx);	869	Safefree (cctx);
695	}	870	}
696		871
697	static coro_cctx *	872	static coro_cctx *
698	cctx_get ()	873	cctx_get (pTHX)
699	{	874	{
700	coro_cctx *cctx;
701
702	if (cctx_first)	875	while (cctx_first)
703	{	876	{
704	cctx = cctx_first;	877	coro_cctx *cctx = cctx_first;
705	cctx_first = cctx->next;	878	cctx_first = cctx->next;
706	--cctx_idle;	879	--cctx_idle;
707	}	880
708	else	881	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
709	{	882	return cctx;
710	cctx = cctx_new ();	883
711	PL_op = PL_op->op_next;	884	cctx_destroy (cctx);
712	}	885	}
713		886
714	return cctx;	887	return cctx_new ();
715	}	888	}
716		889
717	static void	890	static void
718	cctx_put (coro_cctx *cctx)	891	cctx_put (coro_cctx *cctx)
719	{	892	{
…		…
722	{	895	{
723	coro_cctx *first = cctx_first;	896	coro_cctx *first = cctx_first;
724	cctx_first = first->next;	897	cctx_first = first->next;
725	--cctx_idle;	898	--cctx_idle;
726		899
727	assert (!first->inuse);
728	cctx_destroy (first);	900	cctx_destroy (first);
729	}	901	}
730		902
731	++cctx_idle;	903	++cctx_idle;
732	cctx->next = cctx_first;	904	cctx->next = cctx_first;
…		…
735		907
736	/ coroutine switching ***************************************************/	908	/ coroutine switching ***************************************************/
737		909
738	/* never call directly, always through the coro_state_transfer global variable */	910	/* never call directly, always through the coro_state_transfer global variable */
739	static void NOINLINE	911	static void NOINLINE
740	transfer (struct coro prev, struct coro next)	912	transfer (pTHX_ struct coro prev, struct coro next)
741	{	913	{
742	dSTACKLEVEL;	914	dSTACKLEVEL;
743		915
744	/* sometimes transfer is only called to set idle_sp */	916	/* sometimes transfer is only called to set idle_sp */
745	if (!next)	917	if (!next)
…		…
753		925
754	if (prev->flags & CF_NEW)	926	if (prev->flags & CF_NEW)
755	{	927	{
756	/* create a new empty context */	928	/* create a new empty context */
757	Newz (0, prev->cctx, 1, coro_cctx);	929	Newz (0, prev->cctx, 1, coro_cctx);
758	prev->cctx->inuse = 1;
759	prev->flags &= ~CF_NEW;	930	prev->flags &= ~CF_NEW;
760	prev->flags \|= CF_RUNNING;	931	prev->flags \|= CF_RUNNING;
761	}	932	}
762		933
763	/TODO: must not croak here /	934	/TODO: must not croak here /
…		…
778	if (next->flags & CF_NEW)	949	if (next->flags & CF_NEW)
779	{	950	{
780	/* need to start coroutine */	951	/* need to start coroutine */
781	next->flags &= ~CF_NEW;	952	next->flags &= ~CF_NEW;
782	/* first get rid of the old state */	953	/* first get rid of the old state */
783	save_perl (prev);	954	save_perl (aTHX_ prev);
784	/* setup coroutine call */	955	/* setup coroutine call */
785	setup_coro (next);	956	setup_coro (aTHX_ next);
786	/* need a new stack */
787	assert (!next->cctx);
788	}	957	}
789	else	958	else
790	{	959	{
791	/* coroutine already started */	960	/* coroutine already started */
792	save_perl (prev);	961	save_perl (aTHX_ prev);
793	load_perl (next);	962	load_perl (aTHX_ next);
794	}	963	}
795		964
796	prev__cctx = prev->cctx;	965	prev__cctx = prev->cctx;
797		966
798	/* possibly "free" the cctx */	967	/* possibly "free" the cctx */
799	if (prev__cctx->idle_sp == STACKLEVEL)	968	if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
800	{	969	{
801	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */	970	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
802	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));	971	assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
803		972
804	prev->cctx = 0;	973	prev->cctx = 0;
805		974
806	cctx_put (prev__cctx);	975	cctx_put (prev__cctx);
807	prev__cctx->inuse = 0;
808	}	976	}
809		977
810	if (!next->cctx)	978	if (!next->cctx)
811	{
812	next->cctx = cctx_get ();	979	next->cctx = cctx_get (aTHX);
813	assert (!next->cctx->inuse);
814	next->cctx->inuse = 1;
815	}
816		980
817	if (prev__cctx != next->cctx)	981	if (prev__cctx != next->cctx)
818	{	982	{
819	prev__cctx->top_env = PL_top_env;	983	prev__cctx->top_env = PL_top_env;
820	PL_top_env = next->cctx->top_env;	984	PL_top_env = next->cctx->top_env;
821	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	985	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
822	}	986	}
823		987
824	free_coro_mortal ();	988	free_coro_mortal (aTHX);
825	UNLOCK;	989	UNLOCK;
826	}	990	}
827	}	991	}
828		992
829	struct transfer_args	993	struct transfer_args
830	{	994	{
831	struct coro prev, next;	995	struct coro prev, next;
832	};	996	};
833		997
834	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	998	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
835		999
836	/ high level stuff ******************************************************/	1000	/ high level stuff ******************************************************/
837		1001
838	static int	1002	static int
839	coro_state_destroy (struct coro *coro)	1003	coro_state_destroy (pTHX_ struct coro *coro)
840	{	1004	{
841	if (coro->flags & CF_DESTROYED)	1005	if (coro->flags & CF_DESTROYED)
842	return 0;	1006	return 0;
843		1007
844	coro->flags \|= CF_DESTROYED;	1008	coro->flags \|= CF_DESTROYED;
…		…
864	temp.save = CORO_SAVE_ALL;	1028	temp.save = CORO_SAVE_ALL;
865		1029
866	if (coro->flags & CF_RUNNING)	1030	if (coro->flags & CF_RUNNING)
867	croak ("FATAL: tried to destroy currently running coroutine");	1031	croak ("FATAL: tried to destroy currently running coroutine");
868		1032
869	save_perl (&temp);	1033	save_perl (aTHX_ &temp);
870	load_perl (coro);	1034	load_perl (aTHX_ coro);
871		1035
872	coro_destroy_stacks ();	1036	coro_destroy_stacks (aTHX);
873		1037
874	load_perl (&temp); /* this will get rid of defsv etc.. */	1038	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
875		1039
876	coro->mainstack = 0;	1040	coro->mainstack = 0;
877	}	1041	}
878		1042
879	cctx_destroy (coro->cctx);	1043	cctx_destroy (coro->cctx);
880	SvREFCNT_dec (coro->args);	1044	SvREFCNT_dec (coro->args);
881		1045
		1046	if (coro->next) coro->next->prev = coro->prev;
		1047	if (coro->prev) coro->prev->next = coro->next;
		1048	if (coro == coro_first) coro_first = coro->next;
		1049
882	return 1;	1050	return 1;
883	}	1051	}
884		1052
885	static int	1053	static int
886	coro_state_free (pTHX_ SV sv, MAGIC mg)	1054	coro_state_free (pTHX_ SV sv, MAGIC mg)
887	{	1055	{
888	struct coro coro = (struct coro )mg->mg_ptr;	1056	struct coro coro = (struct coro )mg->mg_ptr;
889	mg->mg_ptr = 0;	1057	mg->mg_ptr = 0;
890		1058
		1059	coro->hv = 0;
		1060
891	if (--coro->refcnt < 0)	1061	if (--coro->refcnt < 0)
892	{	1062	{
893	coro_state_destroy (coro);	1063	coro_state_destroy (aTHX_ coro);
894	Safefree (coro);	1064	Safefree (coro);
895	}	1065	}
896		1066
897	return 0;	1067	return 0;
898	}	1068	}
…		…
917	# define MGf_DUP 0	1087	# define MGf_DUP 0
918	#endif	1088	#endif
919	};	1089	};
920		1090
921	static struct coro *	1091	static struct coro *
922	SvSTATE (SV *coro)	1092	SvSTATE_ (pTHX_ SV *coro)
923	{	1093	{
924	HV *stash;	1094	HV *stash;
925	MAGIC *mg;	1095	MAGIC *mg;
926		1096
927	if (SvROK (coro))	1097	if (SvROK (coro))
…		…
933	/* very slow, but rare, check */	1103	/* very slow, but rare, check */
934	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	1104	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
935	croak ("Coro::State object required");	1105	croak ("Coro::State object required");
936	}	1106	}
937		1107
938	mg = SvMAGIC (coro);	1108	mg = CORO_MAGIC (coro);
939	assert (mg->mg_type == PERL_MAGIC_ext);
940	return (struct coro *)mg->mg_ptr;	1109	return (struct coro *)mg->mg_ptr;
941	}	1110	}
942		1111
		1112	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1113
943	static void	1114	static void
944	prepare_transfer (struct transfer_args ta, SV prev_sv, SV *next_sv)	1115	prepare_transfer (pTHX_ struct transfer_args ta, SV prev_sv, SV *next_sv)
945	{	1116	{
946	ta->prev = SvSTATE (prev_sv);	1117	ta->prev = SvSTATE (prev_sv);
947	ta->next = SvSTATE (next_sv);	1118	ta->next = SvSTATE (next_sv);
948	}	1119	}
949		1120
950	static void	1121	static void
951	api_transfer (SV prev_sv, SV next_sv)	1122	api_transfer (SV prev_sv, SV next_sv)
952	{	1123	{
		1124	dTHX;
953	struct transfer_args ta;	1125	struct transfer_args ta;
954		1126
955	prepare_transfer (&ta, prev_sv, next_sv);	1127	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
956	TRANSFER (ta);	1128	TRANSFER (ta);
957	}	1129	}
958		1130
959	static int	1131	static int
960	api_save (SV *coro_sv, int new_save)	1132	api_save (SV *coro_sv, int new_save)
961	{	1133	{
		1134	dTHX;
962	struct coro *coro = SvSTATE (coro_sv);	1135	struct coro *coro = SvSTATE (coro_sv);
963	int old_save = coro->save;	1136	int old_save = coro->save;
964		1137
965	if (new_save >= 0)	1138	if (new_save >= 0)
966	coro->save = new_save;	1139	coro->save = new_save;
…		…
969	}	1142	}
970		1143
971	/ Coro ******************************************************************/	1144	/ Coro ******************************************************************/
972		1145
973	static void	1146	static void
974	coro_enq (SV *coro_sv)	1147	coro_enq (pTHX_ SV *coro_sv)
975	{	1148	{
976	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);	1149	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
977	}	1150	}
978		1151
979	static SV *	1152	static SV *
980	coro_deq (int min_prio)	1153	coro_deq (pTHX_ int min_prio)
981	{	1154	{
982	int prio = PRIO_MAX - PRIO_MIN;	1155	int prio = PRIO_MAX - PRIO_MIN;
983		1156
984	min_prio -= PRIO_MIN;	1157	min_prio -= PRIO_MIN;
985	if (min_prio < 0)	1158	if (min_prio < 0)
…		…
993	}	1166	}
994		1167
995	static int	1168	static int
996	api_ready (SV *coro_sv)	1169	api_ready (SV *coro_sv)
997	{	1170	{
		1171	dTHX;
998	struct coro *coro;	1172	struct coro *coro;
999		1173
1000	if (SvROK (coro_sv))	1174	if (SvROK (coro_sv))
1001	coro_sv = SvRV (coro_sv);	1175	coro_sv = SvRV (coro_sv);
1002		1176
…		…
1006	return 0;	1180	return 0;
1007		1181
1008	coro->flags \|= CF_READY;	1182	coro->flags \|= CF_READY;
1009		1183
1010	LOCK;	1184	LOCK;
1011	coro_enq (SvREFCNT_inc (coro_sv));	1185	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1012	++coro_nready;	1186	++coro_nready;
1013	UNLOCK;	1187	UNLOCK;
1014		1188
1015	return 1;	1189	return 1;
1016	}	1190	}
1017		1191
1018	static int	1192	static int
1019	api_is_ready (SV *coro_sv)	1193	api_is_ready (SV *coro_sv)
1020	{	1194	{
		1195	dTHX;
1021	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1196	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1022	}	1197	}
1023		1198
1024	static void	1199	static void
1025	prepare_schedule (struct transfer_args *ta)	1200	prepare_schedule (pTHX_ struct transfer_args *ta)
1026	{	1201	{
1027	SV prev_sv, next_sv;	1202	SV prev_sv, next_sv;
1028		1203
1029	for (;;)	1204	for (;;)
1030	{	1205	{
1031	LOCK;	1206	LOCK;
1032	next_sv = coro_deq (PRIO_MIN);	1207	next_sv = coro_deq (aTHX_ PRIO_MIN);
1033		1208
1034	/* nothing to schedule: call the idle handler */	1209	/* nothing to schedule: call the idle handler */
1035	if (!next_sv)	1210	if (!next_sv)
1036	{	1211	{
1037	dSP;	1212	dSP;
…		…
1072		1247
1073	assert (ta->next->flags & CF_READY);	1248	assert (ta->next->flags & CF_READY);
1074	ta->next->flags &= ~CF_READY;	1249	ta->next->flags &= ~CF_READY;
1075		1250
1076	LOCK;	1251	LOCK;
1077	free_coro_mortal ();	1252	free_coro_mortal (aTHX);
1078	coro_mortal = prev_sv;	1253	coro_mortal = prev_sv;
1079	UNLOCK;	1254	UNLOCK;
1080	}	1255	}
1081		1256
1082	static void	1257	static void
1083	prepare_cede (struct transfer_args *ta)	1258	prepare_cede (pTHX_ struct transfer_args *ta)
1084	{	1259	{
1085	api_ready (coro_current);	1260	api_ready (coro_current);
1086	prepare_schedule (ta);	1261	prepare_schedule (aTHX_ ta);
1087	}	1262	}
1088		1263
1089	static int	1264	static int
1090	prepare_cede_notself (struct transfer_args *ta)	1265	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1091	{	1266	{
1092	if (coro_nready)	1267	if (coro_nready)
1093	{	1268	{
1094	SV *prev = SvRV (coro_current);	1269	SV *prev = SvRV (coro_current);
1095	prepare_schedule (ta);	1270	prepare_schedule (aTHX_ ta);
1096	api_ready (prev);	1271	api_ready (prev);
1097	return 1;	1272	return 1;
1098	}	1273	}
1099	else	1274	else
1100	return 0;	1275	return 0;
1101	}	1276	}
1102		1277
1103	static void	1278	static void
1104	api_schedule (void)	1279	api_schedule (void)
1105	{	1280	{
		1281	dTHX;
1106	struct transfer_args ta;	1282	struct transfer_args ta;
1107		1283
1108	prepare_schedule (&ta);	1284	prepare_schedule (aTHX_ &ta);
1109	TRANSFER (ta);	1285	TRANSFER (ta);
1110	}	1286	}
1111		1287
1112	static int	1288	static int
1113	api_cede (void)	1289	api_cede (void)
1114	{	1290	{
		1291	dTHX;
1115	struct transfer_args ta;	1292	struct transfer_args ta;
1116		1293
1117	prepare_cede (&ta);	1294	prepare_cede (aTHX_ &ta);
1118		1295
1119	if (ta.prev != ta.next)	1296	if (ta.prev != ta.next)
1120	{	1297	{
1121	TRANSFER (ta);	1298	TRANSFER (ta);
1122	return 1;	1299	return 1;
…		…
1126	}	1303	}
1127		1304
1128	static int	1305	static int
1129	api_cede_notself (void)	1306	api_cede_notself (void)
1130	{	1307	{
		1308	dTHX;
1131	struct transfer_args ta;	1309	struct transfer_args ta;
1132		1310
1133	if (prepare_cede_notself (&ta))	1311	if (prepare_cede_notself (aTHX_ &ta))
1134	{	1312	{
1135	TRANSFER (ta);	1313	TRANSFER (ta);
1136	return 1;	1314	return 1;
1137	}	1315	}
1138	else	1316	else
…		…
1149	MUTEX_INIT (&coro_mutex);	1327	MUTEX_INIT (&coro_mutex);
1150	#endif	1328	#endif
1151	BOOT_PAGESIZE;	1329	BOOT_PAGESIZE;
1152		1330
1153	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	1331	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
		1332
		1333	newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
		1334	newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
		1335	newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
		1336	newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1154		1337
1155	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1338	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1156	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1339	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1157	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1340	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1158	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));	1341	newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
		1342	newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
		1343	newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1159	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1344	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1160		1345
1161	main_mainstack = PL_mainstack;	1346	main_mainstack = PL_mainstack;
		1347	main_top_env = PL_top_env;
		1348
		1349	while (main_top_env->je_prev)
		1350	main_top_env = main_top_env->je_prev;
1162		1351
1163	coroapi.ver = CORO_API_VERSION;	1352	coroapi.ver = CORO_API_VERSION;
1164	coroapi.transfer = api_transfer;	1353	coroapi.transfer = api_transfer;
1165		1354
1166	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1355	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1174	HV *hv;	1363	HV *hv;
1175	int i;	1364	int i;
1176		1365
1177	Newz (0, coro, 1, struct coro);	1366	Newz (0, coro, 1, struct coro);
1178	coro->args = newAV ();	1367	coro->args = newAV ();
1179	coro->save = CORO_SAVE_ALL;	1368	coro->save = CORO_SAVE_DEF;
1180	coro->flags = CF_NEW;	1369	coro->flags = CF_NEW;
1181		1370
		1371	if (coro_first) coro_first->prev = coro;
		1372	coro->next = coro_first;
		1373	coro_first = coro;
		1374
1182	hv = newHV ();	1375	coro->hv = hv = newHV ();
1183	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1376	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1184	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1377	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1185		1378
1186	for (i = 1; i < items; i++)	1379	for (i = 1; i < items; i++)
1187	av_push (coro->args, newSVsv (ST (i)));	1380	av_push (coro->args, newSVsv (ST (i)));
…		…
1191		1384
1192	int	1385	int
1193	save (SV *coro, int new_save = -1)	1386	save (SV *coro, int new_save = -1)
1194	CODE:	1387	CODE:
1195	RETVAL = api_save (coro, new_save);	1388	RETVAL = api_save (coro, new_save);
		1389	OUTPUT:
		1390	RETVAL
		1391
		1392	int
		1393	save_also (SV *coro_sv, int save_also)
		1394	CODE:
		1395	{
		1396	struct coro *coro = SvSTATE (coro_sv);
		1397	RETVAL = coro->save;
		1398	coro->save \|= save_also;
		1399	}
1196	OUTPUT:	1400	OUTPUT:
1197	RETVAL	1401	RETVAL
1198		1402
1199	void	1403	void
1200	_set_stacklevel (...)	1404	_set_stacklevel (...)
…		…
1216		1420
1217	case 1:	1421	case 1:
1218	if (items != 2)	1422	if (items != 2)
1219	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);	1423	croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1220		1424
1221	prepare_transfer (&ta, ST (0), ST (1));	1425	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1222	break;	1426	break;
1223		1427
1224	case 2:	1428	case 2:
1225	prepare_schedule (&ta);	1429	prepare_schedule (aTHX_ &ta);
1226	break;	1430	break;
1227		1431
1228	case 3:	1432	case 3:
1229	prepare_cede (&ta);	1433	prepare_cede (aTHX_ &ta);
1230	break;	1434	break;
1231		1435
1232	case 4:	1436	case 4:
1233	if (!prepare_cede_notself (&ta))	1437	if (!prepare_cede_notself (aTHX_ &ta))
1234	XSRETURN_EMPTY;	1438	XSRETURN_EMPTY;
1235		1439
1236	break;	1440	break;
1237	}	1441	}
1238		1442
…		…
1244	}	1448	}
1245		1449
1246	bool	1450	bool
1247	_destroy (SV *coro_sv)	1451	_destroy (SV *coro_sv)
1248	CODE:	1452	CODE:
1249	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1453	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1250	OUTPUT:	1454	OUTPUT:
1251	RETVAL	1455	RETVAL
1252		1456
1253	void	1457	void
1254	_exit (code)	1458	_exit (code)
…		…
1256	PROTOTYPE: $	1460	PROTOTYPE: $
1257	CODE:	1461	CODE:
1258	_exit (code);	1462	_exit (code);
1259		1463
1260	int	1464	int
		1465	cctx_stacksize (int new_stacksize = 0)
		1466	CODE:
		1467	RETVAL = coro_stacksize;
		1468	if (new_stacksize)
		1469	coro_stacksize = new_stacksize;
		1470	OUTPUT:
		1471	RETVAL
		1472
		1473	int
1261	cctx_count ()	1474	cctx_count ()
1262	CODE:	1475	CODE:
1263	RETVAL = cctx_count;	1476	RETVAL = cctx_count;
1264	OUTPUT:	1477	OUTPUT:
1265	RETVAL	1478	RETVAL
…		…
1269	CODE:	1482	CODE:
1270	RETVAL = cctx_idle;	1483	RETVAL = cctx_idle;
1271	OUTPUT:	1484	OUTPUT:
1272	RETVAL	1485	RETVAL
1273		1486
		1487	void
		1488	list ()
		1489	PPCODE:
		1490	{
		1491	struct coro *coro;
		1492	for (coro = coro_first; coro; coro = coro->next)
		1493	if (coro->hv)
		1494	XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
		1495	}
		1496
		1497	void
		1498	call (Coro::State coro, SV *coderef)
		1499	ALIAS:
		1500	eval = 1
		1501	CODE:
		1502	{
		1503	if (coro->mainstack)
		1504	{
		1505	struct coro temp;
		1506	Zero (&temp, 1, struct coro);
		1507	temp.save = CORO_SAVE_ALL;
		1508
		1509	if (!(coro->flags & CF_RUNNING))
		1510	{
		1511	save_perl (aTHX_ &temp);
		1512	load_perl (aTHX_ coro);
		1513	}
		1514
		1515	{
		1516	dSP;
		1517	ENTER;
		1518	SAVETMPS;
		1519	PUSHMARK (SP);
		1520	PUTBACK;
		1521	if (ix)
		1522	eval_sv (coderef, 0);
		1523	else
		1524	call_sv (coderef, G_KEEPERR \| G_EVAL \| G_VOID \| G_DISCARD);
		1525	SPAGAIN;
		1526	FREETMPS;
		1527	LEAVE;
		1528	PUTBACK;
		1529	}
		1530
		1531	if (!(coro->flags & CF_RUNNING))
		1532	{
		1533	save_perl (aTHX_ coro);
		1534	load_perl (aTHX_ &temp);
		1535	}
		1536	}
		1537	}
		1538
		1539	SV *
		1540	is_ready (Coro::State coro)
		1541	PROTOTYPE: $
		1542	ALIAS:
		1543	is_ready = CF_READY
		1544	is_running = CF_RUNNING
		1545	is_new = CF_NEW
		1546	is_destroyed = CF_DESTROYED
		1547	CODE:
		1548	RETVAL = boolSV (coro->flags & ix);
		1549	OUTPUT:
		1550	RETVAL
		1551
		1552	void
		1553	trace (Coro::State coro, int flags = CC_TRACE \| CC_TRACE_SUB)
		1554	CODE:
		1555	if (flags & CC_TRACE)
		1556	{
		1557	if (!coro->cctx)
		1558	coro->cctx = cctx_new ();
		1559	else if (!(coro->cctx->flags & CC_TRACE))
		1560	croak ("cannot enable tracing on coroutine with custom stack");
		1561
		1562	coro->cctx->flags \|= flags & (CC_TRACE \| CC_TRACE_ALL);
		1563	}
		1564	else
		1565	if (coro->cctx && coro->cctx->flags & CC_TRACE)
		1566	{
		1567	coro->cctx->flags &= ~(CC_TRACE \| CC_TRACE_ALL);
		1568	coro->cctx->flags \|= CC_NOREUSE;
		1569
		1570	if (coro->flags & CF_RUNNING)
		1571	PL_runops = RUNOPS_DEFAULT;
		1572	else
		1573	coro->runops = RUNOPS_DEFAULT;
		1574	}
		1575
		1576	SV *
		1577	has_stack (Coro::State coro)
		1578	PROTOTYPE: $
		1579	CODE:
		1580	RETVAL = boolSV (!!coro->cctx);
		1581	OUTPUT:
		1582	RETVAL
		1583
		1584	int
		1585	is_traced (Coro::State coro)
		1586	PROTOTYPE: $
		1587	CODE:
		1588	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1589	OUTPUT:
		1590	RETVAL
		1591
		1592	IV
		1593	rss (Coro::State coro)
		1594	PROTOTYPE: $
		1595	CODE:
		1596	RETVAL = coro_rss (coro);
		1597	OUTPUT:
		1598	RETVAL
		1599
		1600
1274	MODULE = Coro::State PACKAGE = Coro	1601	MODULE = Coro::State PACKAGE = Coro
1275		1602
1276	BOOT:	1603	BOOT:
1277	{	1604	{
1278	int i;	1605	int i;
		1606
		1607	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1608	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1609	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1610
		1611	coro_current = get_sv ("Coro::current", FALSE);
		1612	SvREADONLY_on (coro_current);
1279		1613
1280	coro_stash = gv_stashpv ("Coro", TRUE);	1614	coro_stash = gv_stashpv ("Coro", TRUE);
1281		1615
1282	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1616	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1283	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1617	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1284	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1618	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1285	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1619	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1286	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1620	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1287	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1621	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1288
1289	coro_current = get_sv ("Coro::current", FALSE);
1290	SvREADONLY_on (coro_current);
1291		1622
1292	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1623	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1293	coro_ready[i] = newAV ();	1624	coro_ready[i] = newAV ();
1294		1625
1295	{	1626	{
…		…
1345	CODE:	1676	CODE:
1346	RETVAL = boolSV (api_ready (self));	1677	RETVAL = boolSV (api_ready (self));
1347	OUTPUT:	1678	OUTPUT:
1348	RETVAL	1679	RETVAL
1349		1680
1350	SV *
1351	is_ready (SV *self)
1352	PROTOTYPE: $
1353	CODE:
1354	RETVAL = boolSV (api_is_ready (self));
1355	OUTPUT:
1356	RETVAL
1357
1358	int	1681	int
1359	nready (...)	1682	nready (...)
1360	PROTOTYPE:	1683	PROTOTYPE:
1361	CODE:	1684	CODE:
1362	RETVAL = coro_nready;	1685	RETVAL = coro_nready;
1363	OUTPUT:	1686	OUTPUT:
1364	RETVAL	1687	RETVAL
1365		1688
		1689	# for async_pool speedup
		1690	void
		1691	_pool_1 (SV *cb)
		1692	CODE:
		1693	{
		1694	int i, len;
		1695	HV hv = (HV )SvRV (coro_current);
		1696	AV *defav = GvAV (PL_defgv);
		1697	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1698	AV *invoke_av;
		1699
		1700	if (!invoke)
		1701	croak ("\3terminate\2\n");
		1702
		1703	hv_store (hv, "desc", sizeof ("desc") - 1,
		1704	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1705
		1706	invoke_av = (AV *)SvRV (invoke);
		1707	len = av_len (invoke_av);
		1708
		1709	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1710
		1711	if (len > 0)
		1712	{
		1713	av_fill (defav, len - 1);
		1714	for (i = 0; i < len; ++i)
		1715	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1716	}
		1717
		1718	SvREFCNT_dec (invoke);
		1719	}
		1720
		1721	void
		1722	_pool_2 (SV *cb)
		1723	CODE:
		1724	{
		1725	struct coro *coro = SvSTATE (coro_current);
		1726
		1727	sv_setsv (cb, &PL_sv_undef);
		1728
		1729	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1730	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1731	croak ("\3terminate\2\n");
		1732
		1733	av_clear (GvAV (PL_defgv));
		1734	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1735	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1736	coro->save = CORO_SAVE_DEF;
		1737	coro->prio = 0;
		1738	av_push (av_async_pool, newSVsv (coro_current));
		1739	}
		1740
		1741
1366	MODULE = Coro::State PACKAGE = Coro::AIO	1742	MODULE = Coro::State PACKAGE = Coro::AIO
1367		1743
1368	SV *	1744	SV *
1369	_get_state ()	1745	_get_state ()
1370	CODE:	1746	CODE:

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Comparing Coro/Coro/State.xs (file contents): Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs. Revision 1.168 by root, Thu Sep 27 16:10:48 2007 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.141 by root, Mon Jan 22 18:45:17 2007 UTC vs.
Revision 1.168 by root, Thu Sep 27 16:10:48 2007 UTC