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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs.
Revision 1.167 by root, Thu Sep 27 15:52:31 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>
		40	# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
		41	#else
		42	# define REGISTER_STACK(cctx,start,end)
38	#endif	43	#endif
39		44
40	/* the maximum number of idle cctx that will be pooled */	45	/* the maximum number of idle cctx that will be pooled */
41	#define MAX_IDLE_CCTX 8	46	#define MAX_IDLE_CCTX 8
42		47
…		…
71	#ifndef SvRV_set	76	#ifndef SvRV_set
72	# define SvRV_set(s,v) SvRV(s) = (v)	77	# define SvRV_set(s,v) SvRV(s) = (v)
73	#endif	78	#endif
74		79
75	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	80	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76	# undef STACKGUARD	81	# undef CORO_STACKGUARD
77	#endif	82	#endif
78		83
79	#ifndef STACKGUARD	84	#ifndef CORO_STACKGUARD
80	# define STACKGUARD 0	85	# define CORO_STACKGUARD 0
81	#endif	86	#endif
82		87
83	/* prefer perl internal functions over our own? */	88	/* prefer perl internal functions over our own? */
84	#ifndef PREFER_PERL_FUNCTIONS	89	#ifndef CORO_PREFER_PERL_FUNCTIONS
85	# define PREFER_PERL_FUNCTIONS 0	90	# define CORO_PREFER_PERL_FUNCTIONS 0
86	#endif	91	#endif
87		92
88	/* 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
89	* to the current C stack pointer. Its property is that it changes with each call	94	* portable way as possible. */
90	* and should be unique. */
91	#define dSTACKLEVEL int stacklevel	95	#define dSTACKLEVEL volatile char stacklevel
92	#define STACKLEVEL ((void *)&stacklevel)	96	#define STACKLEVEL ((void *)&stacklevel)
93		97
94	#define IN_DESTRUCT (PL_main_cv == Nullcv)	98	#define IN_DESTRUCT (PL_main_cv == Nullcv)
95		99
96	#if __GNUC__ >= 3	100	#if __GNUC__ >= 3
…		…
121	I32 laststype;	125	I32 laststype;
122	int laststatval;	126	int laststatval;
123	Stat_t statcache;	127	Stat_t statcache;
124	};	128	};
125		129
		130	static size_t coro_stacksize = CORO_STACKSIZE;
126	static struct CoroAPI coroapi;	131	static struct CoroAPI coroapi;
127	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;
128	static HV coro_state_stash, coro_stash;	134	static HV coro_state_stash, coro_stash;
129	static SV coro_mortal; / will be freed after next transfer */	135	static SV coro_mortal; / will be freed after next transfer */
130		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
131	static struct coro_cctx *cctx_first;	142	static struct coro_cctx *cctx_first;
132	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	};
133		153
134	/* this is a structure representing a c-level coroutine */	154	/* this is a structure representing a c-level coroutine */
135	typedef struct coro_cctx {	155	typedef struct coro_cctx {
136	struct coro_cctx *next;	156	struct coro_cctx *next;
137		157
138	/* the stack */	158	/* the stack */
139	void *sptr;	159	void *sptr;
140	long ssize; /* positive == mmap, otherwise malloc */	160	size_t ssize;
141		161
142	/* cpu state */	162	/* cpu state */
143	void idle_sp; / sp of top-level transfer/schedule/cede call */	163	void idle_sp; / sp of top-level transfer/schedule/cede call */
144	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 */
145	JMPENV *top_env;	165	JMPENV *top_env;
146	coro_context cctx;	166	coro_context cctx;
147		167
148	int inuse;
149
150	#if USE_VALGRIND	168	#if CORO_USE_VALGRIND
151	int valgrind_id;	169	int valgrind_id;
152	#endif	170	#endif
		171	unsigned char flags;
153	} coro_cctx;	172	} coro_cctx;
154		173
155	enum {	174	enum {
156	CF_RUNNING = 0x0001, /* coroutine is running */	175	CF_RUNNING = 0x0001, /* coroutine is running */
157	CF_READY = 0x0002, /* coroutine is ready */	176	CF_READY = 0x0002, /* coroutine is ready */
…		…
172		191
173	/* optionally saved, might be zero */	192	/* optionally saved, might be zero */
174	AV defav; / @_ */	193	AV defav; / @_ */
175	SV defsv; / $_ */	194	SV defsv; / $_ */
176	SV errsv; / $@ */	195	SV errsv; / $@ */
		196	GV deffh; / default filehandle */
177	SV irssv; / $/ */	197	SV irssv; / $/ */
178	SV irssv_sv; / real $/ cache */	198	SV irssv_sv; / real $/ cache */
179		199
180	#define VAR(name,type) type name;	200	#define VAR(name,type) type name;
181	# include "state.h"	201	# include "state.h"
182	#undef VAR	202	#undef VAR
183		203
184	/* coro process data */	204	/* coro process data */
185	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 */
186	};	210	};
187		211
188	typedef struct coro *Coro__State;	212	typedef struct coro *Coro__State;
189	typedef struct coro *Coro__State_or_hashref;	213	typedef struct coro *Coro__State_or_hashref;
190		214
…		…
199		223
200	/* for Coro.pm */	224	/* for Coro.pm */
201	static SV *coro_current;	225	static SV *coro_current;
202	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	226	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203	static int coro_nready;	227	static int coro_nready;
		228	static struct coro *coro_first;
204		229
205	/ lowlevel stuff ********************************************************/	230	/ lowlevel stuff ********************************************************/
206		231
207	static AV *	232	static AV *
208	coro_clone_padlist (CV *cv)	233	coro_clone_padlist (pTHX_ CV *cv)
209	{	234	{
210	AV *padlist = CvPADLIST (cv);	235	AV *padlist = CvPADLIST (cv);
211	AV newpadlist, newpad;	236	AV newpadlist, newpad;
212		237
213	newpadlist = newAV ();	238	newpadlist = newAV ();
…		…
225		250
226	return newpadlist;	251	return newpadlist;
227	}	252	}
228		253
229	static void	254	static void
230	free_padlist (AV *padlist)	255	free_padlist (pTHX_ AV *padlist)
231	{	256	{
232	/* may be during global destruction */	257	/* may be during global destruction */
233	if (SvREFCNT (padlist))	258	if (SvREFCNT (padlist))
234	{	259	{
235	I32 i = AvFILLp (padlist);	260	I32 i = AvFILLp (padlist);
…		…
256	AV *padlist;	281	AV *padlist;
257	AV av = (AV )mg->mg_obj;	282	AV av = (AV )mg->mg_obj;
258		283
259	/* casting is fun. */	284	/* casting is fun. */
260	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	285	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
261	free_padlist (padlist);	286	free_padlist (aTHX_ padlist);
262		287
263	SvREFCNT_dec (av);	288	SvREFCNT_dec (av);
264		289
265	return 0;	290	return 0;
266	}	291	}
…		…
276	: mg_find ((SV *)cv, PERL_MAGIC_coro) \	301	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
277	: 0	302	: 0
278		303
279	/* the next two functions merely cache the padlists */	304	/* the next two functions merely cache the padlists */
280	static void	305	static void
281	get_padlist (CV *cv)	306	get_padlist (pTHX_ CV *cv)
282	{	307	{
283	MAGIC *mg = CORO_MAGIC (cv);	308	MAGIC *mg = CORO_MAGIC (cv);
284	AV *av;	309	AV *av;
285		310
286	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)	311	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];	312	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288	else	313	else
289	{	314	{
290	#if PREFER_PERL_FUNCTIONS	315	#if CORO_PREFER_PERL_FUNCTIONS
291	/* this is probably cleaner, but also slower? */	316	/* this is probably cleaner, but also slower? */
292	CV *cp = Perl_cv_clone (cv);	317	CV *cp = Perl_cv_clone (cv);
293	CvPADLIST (cv) = CvPADLIST (cp);	318	CvPADLIST (cv) = CvPADLIST (cp);
294	CvPADLIST (cp) = 0;	319	CvPADLIST (cp) = 0;
295	SvREFCNT_dec (cp);	320	SvREFCNT_dec (cp);
296	#else	321	#else
297	CvPADLIST (cv) = coro_clone_padlist (cv);	322	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298	#endif	323	#endif
299	}	324	}
300	}	325	}
301		326
302	static void	327	static void
303	put_padlist (CV *cv)	328	put_padlist (pTHX_ CV *cv)
304	{	329	{
305	MAGIC *mg = CORO_MAGIC (cv);	330	MAGIC *mg = CORO_MAGIC (cv);
306	AV *av;	331	AV *av;
307		332
308	if (!mg)	333	if (!mg)
…		…
327	#define SE } while (0)	352	#define SE } while (0)
328		353
329	#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
330		355
331	static void	356	static void
332	load_perl (Coro__State c)	357	load_perl (pTHX_ Coro__State c)
333	{	358	{
334	#define VAR(name,type) PL_ ## name = c->name;	359	#define VAR(name,type) PL_ ## name = c->name;
335	# include "state.h"	360	# include "state.h"
336	#undef VAR	361	#undef VAR
337		362
338	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	363	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	364	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
340	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
341	if (c->irssv)	368	if (c->irssv)
342	{	369	{
343	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))	370	if (c->irssv == PL_rs \|\| sv_eq (PL_rs, c->irssv))
		371	{
344	SvREFCNT_dec (c->irssv);	372	SvREFCNT_dec (c->irssv);
		373	c->irssv = 0;
		374	}
345	else	375	else
346	{	376	{
347	REPLACE_SV (PL_rs, c->irssv);	377	REPLACE_SV (PL_rs, c->irssv);
348	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);	378	if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349	sv_setsv (c->irssv_sv, PL_rs);	379	sv_setsv (c->irssv_sv, PL_rs);
…		…
355	CV *cv;	385	CV *cv;
356		386
357	/* now do the ugly restore mess */	387	/* now do the ugly restore mess */
358	while ((cv = (CV *)POPs))	388	while ((cv = (CV *)POPs))
359	{	389	{
360	put_padlist (cv); /* mark this padlist as available */	390	put_padlist (aTHX_ cv); /* mark this padlist as available */
361	CvDEPTH (cv) = PTR2IV (POPs);	391	CvDEPTH (cv) = PTR2IV (POPs);
362	CvPADLIST (cv) = (AV *)POPs;	392	CvPADLIST (cv) = (AV *)POPs;
363	}	393	}
364		394
365	PUTBACK;	395	PUTBACK;
366	}	396	}
367	}	397	}
368		398
369	static void	399	static void
370	save_perl (Coro__State c)	400	save_perl (pTHX_ Coro__State c)
371	{	401	{
372	{	402	{
373	dSP;	403	dSP;
374	I32 cxix = cxstack_ix;	404	I32 cxix = cxstack_ix;
375	PERL_CONTEXT *ccstk = cxstack;	405	PERL_CONTEXT *ccstk = cxstack;
…		…
378	/*	408	/*
379	* 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
380	* (and reinitialize) all cv's in the whole callchain :(	410	* (and reinitialize) all cv's in the whole callchain :(
381	*/	411	*/
382		412
383	EXTEND (SP, 3 + 1);
384	PUSHs (Nullsv);	413	XPUSHs (Nullsv);
385	/* this loop was inspired by pp_caller */	414	/* this loop was inspired by pp_caller */
386	for (;;)	415	for (;;)
387	{	416	{
388	while (cxix >= 0)	417	while (cxix >= 0)
389	{	418	{
390	PERL_CONTEXT *cx = &ccstk[cxix--];	419	PERL_CONTEXT *cx = &ccstk[cxix--];
391		420
392	if (CxTYPE (cx) == CXt_SUB)	421	if (CxTYPE (cx) == CXt_SUB \|\| CxTYPE (cx) == CXt_FORMAT)
393	{	422	{
394	CV *cv = cx->blk_sub.cv;	423	CV *cv = cx->blk_sub.cv;
395		424
396	if (CvDEPTH (cv))	425	if (CvDEPTH (cv))
397	{	426	{
…		…
399	PUSHs ((SV *)CvPADLIST (cv));	428	PUSHs ((SV *)CvPADLIST (cv));
400	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));	429	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401	PUSHs ((SV *)cv);	430	PUSHs ((SV *)cv);
402		431
403	CvDEPTH (cv) = 0;	432	CvDEPTH (cv) = 0;
404	get_padlist (cv);	433	get_padlist (aTHX_ cv);
405	}	434	}
406	}	435	}
407	}	436	}
408		437
409	if (top_si->si_type == PERLSI_MAIN)	438	if (top_si->si_type == PERLSI_MAIN)
410	break;	439	break;
411		440
412	top_si = top_si->si_prev;	441	top_si = top_si->si_prev;
413	ccstk = top_si->si_cxstack;	442	ccstk = top_si->si_cxstack;
414	cxix = top_si->si_cxix;	443	cxix = top_si->si_cxix;
415	}	444	}
416		445
417	PUTBACK;	446	PUTBACK;
418	}	447	}
419		448
420	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;
421	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	450	c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422	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;
423	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;
424		454
425	#define VAR(name,type)c->name = PL_ ## name;	455	#define VAR(name,type)c->name = PL_ ## name;
426	# include "state.h"	456	# include "state.h"
427	#undef VAR	457	#undef VAR
…		…
431	* allocate various perl stacks. This is an exact copy	461	* allocate various perl stacks. This is an exact copy
432	* of perl.c:init_stacks, except that it uses less memory	462	* of perl.c:init_stacks, except that it uses less memory
433	* on the (sometimes correct) assumption that coroutines do	463	* on the (sometimes correct) assumption that coroutines do
434	* not usually need a lot of stackspace.	464	* not usually need a lot of stackspace.
435	*/	465	*/
436	#if PREFER_PERL_FUNCTIONS	466	#if CORO_PREFER_PERL_FUNCTIONS
437	# define coro_init_stacks init_stacks	467	# define coro_init_stacks init_stacks
438	#else	468	#else
439	static void	469	static void
440	coro_init_stacks ()	470	coro_init_stacks (pTHX)
441	{	471	{
442	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));	472	PL_curstackinfo = new_stackinfo(64, 6);
443	PL_curstackinfo->si_type = PERLSI_MAIN;	473	PL_curstackinfo->si_type = PERLSI_MAIN;
444	PL_curstack = PL_curstackinfo->si_stack;	474	PL_curstack = PL_curstackinfo->si_stack;
445	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	475	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446		476
447	PL_stack_base = AvARRAY(PL_curstack);	477	PL_stack_base = AvARRAY(PL_curstack);
448	PL_stack_sp = PL_stack_base;	478	PL_stack_sp = PL_stack_base;
449	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	479	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450		480
451	New(50,PL_tmps_stack,128,SV*);	481	New(50,PL_tmps_stack,64,SV*);
452	PL_tmps_floor = -1;	482	PL_tmps_floor = -1;
453	PL_tmps_ix = -1;	483	PL_tmps_ix = -1;
454	PL_tmps_max = 128;	484	PL_tmps_max = 64;
455		485
456	New(54,PL_markstack,32,I32);	486	New(54,PL_markstack,16,I32);
457	PL_markstack_ptr = PL_markstack;	487	PL_markstack_ptr = PL_markstack;
458	PL_markstack_max = PL_markstack + 32;	488	PL_markstack_max = PL_markstack + 16;
459		489
460	#ifdef SET_MARK_OFFSET	490	#ifdef SET_MARK_OFFSET
461	SET_MARK_OFFSET;	491	SET_MARK_OFFSET;
462	#endif	492	#endif
463		493
464	New(54,PL_scopestack,32,I32);	494	New(54,PL_scopestack,16,I32);
465	PL_scopestack_ix = 0;	495	PL_scopestack_ix = 0;
466	PL_scopestack_max = 32;	496	PL_scopestack_max = 16;
467		497
468	New(54,PL_savestack,64,ANY);	498	New(54,PL_savestack,64,ANY);
469	PL_savestack_ix = 0;	499	PL_savestack_ix = 0;
470	PL_savestack_max = 64;	500	PL_savestack_max = 64;
471		501
472	#if !PERL_VERSION_ATLEAST (5,9,0)	502	#if !PERL_VERSION_ATLEAST (5,9,0)
473	New(54,PL_retstack,16,OP*);	503	New(54,PL_retstack,4,OP*);
474	PL_retstack_ix = 0;	504	PL_retstack_ix = 0;
475	PL_retstack_max = 16;	505	PL_retstack_max = 4;
476	#endif	506	#endif
477	}	507	}
478	#endif	508	#endif
479		509
480	/*	510	/*
481	* destroy the stacks, the callchain etc...	511	* destroy the stacks, the callchain etc...
482	*/	512	*/
483	static void	513	static void
484	coro_destroy_stacks ()	514	coro_destroy_stacks (pTHX)
485	{	515	{
486	if (!IN_DESTRUCT)	516	if (!IN_DESTRUCT)
487	{	517	{
488	/* restore all saved variables and stuff */	518	/* restore all saved variables and stuff */
489	LEAVE_SCOPE (0);	519	LEAVE_SCOPE (0);
…		…
522	#if !PERL_VERSION_ATLEAST (5,9,0)	552	#if !PERL_VERSION_ATLEAST (5,9,0)
523	Safefree (PL_retstack);	553	Safefree (PL_retstack);
524	#endif	554	#endif
525	}	555	}
526		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
527	/ coroutine stack handling **********************************************/	588	/ coroutine stack handling **********************************************/
528		589
529	static void	590	static void
530	setup_coro (struct coro *coro)	591	setup_coro (pTHX_ struct coro *coro)
531	{	592	{
532	/*	593	/*
533	* emulate part of the perl startup here.	594	* emulate part of the perl startup here.
534	*/	595	*/
535
536	coro_init_stacks ();	596	coro_init_stacks (aTHX);
537		597
538	PL_curcop = &PL_compiling;	598	PL_curcop = &PL_compiling;
539	PL_in_eval = EVAL_NULL;	599	PL_in_eval = EVAL_NULL;
		600	PL_comppad = 0;
540	PL_curpm = 0;	601	PL_curpm = 0;
541	PL_localizing = 0;	602	PL_localizing = 0;
542	PL_dirty = 0;	603	PL_dirty = 0;
543	PL_restartop = 0;	604	PL_restartop = 0;
544		605
…		…
552	Zero (&myop, 1, LOGOP);	613	Zero (&myop, 1, LOGOP);
553	myop.op_next = Nullop;	614	myop.op_next = Nullop;
554	myop.op_flags = OPf_WANT_VOID;	615	myop.op_flags = OPf_WANT_VOID;
555		616
556	PUSHMARK (SP);	617	PUSHMARK (SP);
557	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));	618	XPUSHs (av_shift (GvAV (PL_defgv)));
558	PUTBACK;	619	PUTBACK;
559	PL_op = (OP *)&myop;	620	PL_op = (OP *)&myop;
560	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	621	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561	SPAGAIN;	622	SPAGAIN;
562	}	623	}
563		624
564	ENTER; /* necessary e.g. for dounwind */	625	ENTER; /* necessary e.g. for dounwind */
565	}	626	}
566		627
567	static void	628	static void
568	free_coro_mortal ()	629	free_coro_mortal (pTHX)
569	{	630	{
570	if (coro_mortal)	631	if (coro_mortal)
571	{	632	{
572	SvREFCNT_dec (coro_mortal);	633	SvREFCNT_dec (coro_mortal);
573	coro_mortal = 0;	634	coro_mortal = 0;
574	}	635	}
575	}	636	}
576		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
577	/* 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 */
578	static void NOINLINE	745	static void NOINLINE
579	prepare_cctx (coro_cctx *cctx)	746	prepare_cctx (pTHX_ coro_cctx *cctx)
580	{	747	{
581	dSP;	748	dSP;
582	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;
583		755
584	Zero (&myop, 1, LOGOP);	756	Zero (&myop, 1, LOGOP);
585	myop.op_next = PL_op;	757	myop.op_next = PL_op;
586	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	758	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;
587		759
…		…
593	PL_op = (OP *)&myop;	765	PL_op = (OP *)&myop;
594	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	766	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595	SPAGAIN;	767	SPAGAIN;
596	}	768	}
597		769
		770	/*
		771	* this is a _very_ stripped down perl interpreter ;)
		772	*/
598	static void	773	static void
599	coro_run (void *arg)	774	coro_run (void *arg)
600	{	775	{
		776	dTHX;
		777
601	/* coro_run is the alternative tail of transfer(), so unlock here. */	778	/* coro_run is the alternative tail of transfer(), so unlock here. */
602	UNLOCK;	779	UNLOCK;
603		780
604	/*	781	/* we now skip the entersub that lead to transfer() */
605	* this is a _very_ stripped down perl interpreter ;)	782	PL_op = PL_op->op_next;
606	*/
607	PL_top_env = &PL_start_env;
608		783
609	/* inject call to cctx_init */	784	/* inject a fake subroutine call to cctx_init */
610	prepare_cctx ((coro_cctx *)arg);	785	prepare_cctx (aTHX_ (coro_cctx *)arg);
611		786
612	/* 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 */
613	PL_restartop = PL_op;	788	PL_restartop = PL_op;
614	perl_run (PL_curinterp);	789	perl_run (PL_curinterp);
615		790
616	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);	791	/*
617	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 */
618	}	800	}
619		801
620	static coro_cctx *	802	static coro_cctx *
621	cctx_new ()	803	cctx_new ()
622	{	804	{
623	coro_cctx *cctx;	805	coro_cctx *cctx;
		806	void *stack_start;
		807	size_t stack_size;
624		808
625	++cctx_count;	809	++cctx_count;
626		810
627	Newz (0, cctx, 1, coro_cctx);	811	Newz (0, cctx, 1, coro_cctx);
628		812
629	#if HAVE_MMAP	813	#if HAVE_MMAP
630		814
631	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	815	cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632	/* mmap supposedly does allocate-on-write for us */	816	/* mmap supposedly does allocate-on-write for us */
633	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);
634		818
635	if (cctx->sptr == (void *)-1)	819	if (cctx->sptr != (void *)-1)
636	{
637	perror ("FATAL: unable to mmap stack for coroutine");
638	_exit (EXIT_FAILURE);
639	}	820	{
640
641	# if STACKGUARD	821	# if CORO_STACKGUARD
642	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	822	mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643	# endif	823	# endif
		824	stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
		825	stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
		826	cctx->flags \|= CC_MAPPED;
		827	}
		828	else
		829	#endif
		830	{
		831	cctx->ssize = coro_stacksize * (long)sizeof (long);
		832	New (0, cctx->sptr, coro_stacksize, long);
644		833
645	#else
646
647	cctx->ssize = STACKSIZE * (long)sizeof (long);
648	New (0, cctx->sptr, STACKSIZE, long);
649
650	if (!cctx->sptr)	834	if (!cctx->sptr)
651	{	835	{
652	perror ("FATAL: unable to malloc stack for coroutine");	836	perror ("FATAL: unable to allocate stack for coroutine");
653	_exit (EXIT_FAILURE);	837	_exit (EXIT_FAILURE);
654	}	838	}
655		839
656	#endif	840	stack_start = cctx->sptr;
		841	stack_size = cctx->ssize;
		842	}
657		843
658	#if USE_VALGRIND	844	REGISTER_STACK (cctx, (char )stack_start, (char )stack_start + stack_size);
659	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
660	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
661	cctx->ssize + (char *)cctx->sptr
662	);
663	#endif
664
665	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);
666		846
667	return cctx;	847	return cctx;
668	}	848	}
669		849
670	static void	850	static void
…		…
673	if (!cctx)	853	if (!cctx)
674	return;	854	return;
675		855
676	--cctx_count;	856	--cctx_count;
677		857
678	#if USE_VALGRIND	858	#if CORO_USE_VALGRIND
679	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);	859	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680	#endif	860	#endif
681		861
682	#if HAVE_MMAP	862	#if HAVE_MMAP
		863	if (cctx->flags & CC_MAPPED)
683	munmap (cctx->sptr, cctx->ssize);	864	munmap (cctx->sptr, cctx->ssize);
684	#else	865	else
		866	#endif
685	Safefree (cctx->sptr);	867	Safefree (cctx->sptr);
686	#endif
687		868
688	Safefree (cctx);	869	Safefree (cctx);
689	}	870	}
690		871
691	static coro_cctx *	872	static coro_cctx *
692	cctx_get ()	873	cctx_get (pTHX)
693	{	874	{
694	coro_cctx *cctx;
695
696	if (cctx_first)	875	while (cctx_first)
697	{	876	{
698	cctx = cctx_first;	877	coro_cctx *cctx = cctx_first;
699	cctx_first = cctx->next;	878	cctx_first = cctx->next;
700	--cctx_idle;	879	--cctx_idle;
701	}	880
702	else	881	if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
703	{	882	return cctx;
704	cctx = cctx_new ();	883
705	PL_op = PL_op->op_next;	884	cctx_destroy (cctx);
706	}	885	}
707		886
708	return cctx;	887	return cctx_new ();
709	}	888	}
710		889
711	static void	890	static void
712	cctx_put (coro_cctx *cctx)	891	cctx_put (coro_cctx *cctx)
713	{	892	{
…		…
716	{	895	{
717	coro_cctx *first = cctx_first;	896	coro_cctx *first = cctx_first;
718	cctx_first = first->next;	897	cctx_first = first->next;
719	--cctx_idle;	898	--cctx_idle;
720		899
721	assert (!first->inuse);
722	cctx_destroy (first);	900	cctx_destroy (first);
723	}	901	}
724		902
725	++cctx_idle;	903	++cctx_idle;
726	cctx->next = cctx_first;	904	cctx->next = cctx_first;
…		…
729		907
730	/ coroutine switching ***************************************************/	908	/ coroutine switching ***************************************************/
731		909
732	/* never call directly, always through the coro_state_transfer global variable */	910	/* never call directly, always through the coro_state_transfer global variable */
733	static void NOINLINE	911	static void NOINLINE
734	transfer (struct coro prev, struct coro next)	912	transfer (pTHX_ struct coro prev, struct coro next)
735	{	913	{
736	dSTACKLEVEL;	914	dSTACKLEVEL;
737		915
738	/* sometimes transfer is only called to set idle_sp */	916	/* sometimes transfer is only called to set idle_sp */
739	if (!next)	917	if (!next)
…		…
747		925
748	if (prev->flags & CF_NEW)	926	if (prev->flags & CF_NEW)
749	{	927	{
750	/* create a new empty context */	928	/* create a new empty context */
751	Newz (0, prev->cctx, 1, coro_cctx);	929	Newz (0, prev->cctx, 1, coro_cctx);
752	prev->cctx->inuse = 1;
753	prev->flags &= ~CF_NEW;	930	prev->flags &= ~CF_NEW;
754	prev->flags \|= CF_RUNNING;	931	prev->flags \|= CF_RUNNING;
755	}	932	}
756		933
757	/TODO: must not croak here /	934	/TODO: must not croak here /
…		…
772	if (next->flags & CF_NEW)	949	if (next->flags & CF_NEW)
773	{	950	{
774	/* need to start coroutine */	951	/* need to start coroutine */
775	next->flags &= ~CF_NEW;	952	next->flags &= ~CF_NEW;
776	/* first get rid of the old state */	953	/* first get rid of the old state */
777	save_perl (prev);	954	save_perl (aTHX_ prev);
778	/* setup coroutine call */	955	/* setup coroutine call */
779	setup_coro (next);	956	setup_coro (aTHX_ next);
780	/* need a new stack */
781	assert (!next->cctx);
782	}	957	}
783	else	958	else
784	{	959	{
785	/* coroutine already started */	960	/* coroutine already started */
786	save_perl (prev);	961	save_perl (aTHX_ prev);
787	load_perl (next);	962	load_perl (aTHX_ next);
788	}	963	}
789		964
790	prev__cctx = prev->cctx;	965	prev__cctx = prev->cctx;
791		966
792	/* possibly "free" the cctx */	967	/* possibly "free" the cctx */
…		…
796	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));
797		972
798	prev->cctx = 0;	973	prev->cctx = 0;
799		974
800	cctx_put (prev__cctx);	975	cctx_put (prev__cctx);
801	prev__cctx->inuse = 0;
802	}	976	}
803		977
804	if (!next->cctx)	978	if (!next->cctx)
805	{
806	next->cctx = cctx_get ();	979	next->cctx = cctx_get (aTHX);
807	assert (!next->cctx->inuse);
808	next->cctx->inuse = 1;
809	}
810		980
811	if (prev__cctx != next->cctx)	981	if (prev__cctx != next->cctx)
812	{	982	{
813	prev__cctx->top_env = PL_top_env;	983	prev__cctx->top_env = PL_top_env;
814	PL_top_env = next->cctx->top_env;	984	PL_top_env = next->cctx->top_env;
815	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);	985	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816	}	986	}
817		987
818	free_coro_mortal ();	988	free_coro_mortal (aTHX);
819	UNLOCK;	989	UNLOCK;
820	}	990	}
821	}	991	}
822		992
823	struct transfer_args	993	struct transfer_args
824	{	994	{
825	struct coro prev, next;	995	struct coro prev, next;
826	};	996	};
827		997
828	#define TRANSFER(ta) transfer ((ta).prev, (ta).next)	998	#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
829		999
830	/ high level stuff ******************************************************/	1000	/ high level stuff ******************************************************/
831		1001
832	static int	1002	static int
833	coro_state_destroy (struct coro *coro)	1003	coro_state_destroy (pTHX_ struct coro *coro)
834	{	1004	{
835	if (coro->flags & CF_DESTROYED)	1005	if (coro->flags & CF_DESTROYED)
836	return 0;	1006	return 0;
837		1007
838	coro->flags \|= CF_DESTROYED;	1008	coro->flags \|= CF_DESTROYED;
…		…
858	temp.save = CORO_SAVE_ALL;	1028	temp.save = CORO_SAVE_ALL;
859		1029
860	if (coro->flags & CF_RUNNING)	1030	if (coro->flags & CF_RUNNING)
861	croak ("FATAL: tried to destroy currently running coroutine");	1031	croak ("FATAL: tried to destroy currently running coroutine");
862		1032
863	save_perl (&temp);	1033	save_perl (aTHX_ &temp);
864	load_perl (coro);	1034	load_perl (aTHX_ coro);
865		1035
866	coro_destroy_stacks ();	1036	coro_destroy_stacks (aTHX);
867		1037
868	load_perl (&temp); /* this will get rid of defsv etc.. */	1038	load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
869		1039
870	coro->mainstack = 0;	1040	coro->mainstack = 0;
871	}	1041	}
872		1042
873	cctx_destroy (coro->cctx);	1043	cctx_destroy (coro->cctx);
874	SvREFCNT_dec (coro->args);	1044	SvREFCNT_dec (coro->args);
875		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
876	return 1;	1050	return 1;
877	}	1051	}
878		1052
879	static int	1053	static int
880	coro_state_free (pTHX_ SV sv, MAGIC mg)	1054	coro_state_free (pTHX_ SV sv, MAGIC mg)
881	{	1055	{
882	struct coro coro = (struct coro )mg->mg_ptr;	1056	struct coro coro = (struct coro )mg->mg_ptr;
883	mg->mg_ptr = 0;	1057	mg->mg_ptr = 0;
884		1058
		1059	coro->hv = 0;
		1060
885	if (--coro->refcnt < 0)	1061	if (--coro->refcnt < 0)
886	{	1062	{
887	coro_state_destroy (coro);	1063	coro_state_destroy (aTHX_ coro);
888	Safefree (coro);	1064	Safefree (coro);
889	}	1065	}
890		1066
891	return 0;	1067	return 0;
892	}	1068	}
…		…
911	# define MGf_DUP 0	1087	# define MGf_DUP 0
912	#endif	1088	#endif
913	};	1089	};
914		1090
915	static struct coro *	1091	static struct coro *
916	SvSTATE (SV *coro)	1092	SvSTATE_ (pTHX_ SV *coro)
917	{	1093	{
918	HV *stash;	1094	HV *stash;
919	MAGIC *mg;	1095	MAGIC *mg;
920		1096
921	if (SvROK (coro))	1097	if (SvROK (coro))
…		…
927	/* very slow, but rare, check */	1103	/* very slow, but rare, check */
928	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))	1104	if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
929	croak ("Coro::State object required");	1105	croak ("Coro::State object required");
930	}	1106	}
931		1107
932	mg = SvMAGIC (coro);	1108	mg = CORO_MAGIC (coro);
933	assert (mg->mg_type == PERL_MAGIC_ext);
934	return (struct coro *)mg->mg_ptr;	1109	return (struct coro *)mg->mg_ptr;
935	}	1110	}
936		1111
		1112	#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
		1113
937	static void	1114	static void
938	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)
939	{	1116	{
940	ta->prev = SvSTATE (prev_sv);	1117	ta->prev = SvSTATE (prev_sv);
941	ta->next = SvSTATE (next_sv);	1118	ta->next = SvSTATE (next_sv);
942	}	1119	}
943		1120
944	static void	1121	static void
945	api_transfer (SV prev_sv, SV next_sv)	1122	api_transfer (SV prev_sv, SV next_sv)
946	{	1123	{
		1124	dTHX;
947	struct transfer_args ta;	1125	struct transfer_args ta;
948		1126
949	prepare_transfer (&ta, prev_sv, next_sv);	1127	prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
950	TRANSFER (ta);	1128	TRANSFER (ta);
951	}	1129	}
952		1130
953	static int	1131	static int
954	api_save (SV *coro_sv, int new_save)	1132	api_save (SV *coro_sv, int new_save)
955	{	1133	{
		1134	dTHX;
956	struct coro *coro = SvSTATE (coro_sv);	1135	struct coro *coro = SvSTATE (coro_sv);
957	int old_save = coro->save;	1136	int old_save = coro->save;
958		1137
959	if (new_save >= 0)	1138	if (new_save >= 0)
960	coro->save = new_save;	1139	coro->save = new_save;
…		…
963	}	1142	}
964		1143
965	/ Coro ******************************************************************/	1144	/ Coro ******************************************************************/
966		1145
967	static void	1146	static void
968	coro_enq (SV *coro_sv)	1147	coro_enq (pTHX_ SV *coro_sv)
969	{	1148	{
970	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);
971	}	1150	}
972		1151
973	static SV *	1152	static SV *
974	coro_deq (int min_prio)	1153	coro_deq (pTHX_ int min_prio)
975	{	1154	{
976	int prio = PRIO_MAX - PRIO_MIN;	1155	int prio = PRIO_MAX - PRIO_MIN;
977		1156
978	min_prio -= PRIO_MIN;	1157	min_prio -= PRIO_MIN;
979	if (min_prio < 0)	1158	if (min_prio < 0)
…		…
987	}	1166	}
988		1167
989	static int	1168	static int
990	api_ready (SV *coro_sv)	1169	api_ready (SV *coro_sv)
991	{	1170	{
		1171	dTHX;
992	struct coro *coro;	1172	struct coro *coro;
993		1173
994	if (SvROK (coro_sv))	1174	if (SvROK (coro_sv))
995	coro_sv = SvRV (coro_sv);	1175	coro_sv = SvRV (coro_sv);
996		1176
…		…
1000	return 0;	1180	return 0;
1001		1181
1002	coro->flags \|= CF_READY;	1182	coro->flags \|= CF_READY;
1003		1183
1004	LOCK;	1184	LOCK;
1005	coro_enq (SvREFCNT_inc (coro_sv));	1185	coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1006	++coro_nready;	1186	++coro_nready;
1007	UNLOCK;	1187	UNLOCK;
1008		1188
1009	return 1;	1189	return 1;
1010	}	1190	}
1011		1191
1012	static int	1192	static int
1013	api_is_ready (SV *coro_sv)	1193	api_is_ready (SV *coro_sv)
1014	{	1194	{
		1195	dTHX;
1015	return !!(SvSTATE (coro_sv)->flags & CF_READY);	1196	return !!(SvSTATE (coro_sv)->flags & CF_READY);
1016	}	1197	}
1017		1198
1018	static void	1199	static void
1019	prepare_schedule (struct transfer_args *ta)	1200	prepare_schedule (pTHX_ struct transfer_args *ta)
1020	{	1201	{
1021	SV prev_sv, next_sv;	1202	SV prev_sv, next_sv;
1022		1203
1023	for (;;)	1204	for (;;)
1024	{	1205	{
1025	LOCK;	1206	LOCK;
1026	next_sv = coro_deq (PRIO_MIN);	1207	next_sv = coro_deq (aTHX_ PRIO_MIN);
1027		1208
1028	/* nothing to schedule: call the idle handler */	1209	/* nothing to schedule: call the idle handler */
1029	if (!next_sv)	1210	if (!next_sv)
1030	{	1211	{
1031	dSP;	1212	dSP;
…		…
1066		1247
1067	assert (ta->next->flags & CF_READY);	1248	assert (ta->next->flags & CF_READY);
1068	ta->next->flags &= ~CF_READY;	1249	ta->next->flags &= ~CF_READY;
1069		1250
1070	LOCK;	1251	LOCK;
1071	free_coro_mortal ();	1252	free_coro_mortal (aTHX);
1072	coro_mortal = prev_sv;	1253	coro_mortal = prev_sv;
1073	UNLOCK;	1254	UNLOCK;
1074	}	1255	}
1075		1256
1076	static void	1257	static void
1077	prepare_cede (struct transfer_args *ta)	1258	prepare_cede (pTHX_ struct transfer_args *ta)
1078	{	1259	{
1079	api_ready (coro_current);	1260	api_ready (coro_current);
1080	prepare_schedule (ta);	1261	prepare_schedule (aTHX_ ta);
1081	}	1262	}
1082		1263
1083	static int	1264	static int
1084	prepare_cede_notself (struct transfer_args *ta)	1265	prepare_cede_notself (pTHX_ struct transfer_args *ta)
1085	{	1266	{
1086	if (coro_nready)	1267	if (coro_nready)
1087	{	1268	{
1088	SV *prev = SvRV (coro_current);	1269	SV *prev = SvRV (coro_current);
1089	prepare_schedule (ta);	1270	prepare_schedule (aTHX_ ta);
1090	api_ready (prev);	1271	api_ready (prev);
1091	return 1;	1272	return 1;
1092	}	1273	}
1093	else	1274	else
1094	return 0;	1275	return 0;
1095	}	1276	}
1096		1277
1097	static void	1278	static void
1098	api_schedule (void)	1279	api_schedule (void)
1099	{	1280	{
		1281	dTHX;
1100	struct transfer_args ta;	1282	struct transfer_args ta;
1101		1283
1102	prepare_schedule (&ta);	1284	prepare_schedule (aTHX_ &ta);
1103	TRANSFER (ta);	1285	TRANSFER (ta);
1104	}	1286	}
1105		1287
1106	static int	1288	static int
1107	api_cede (void)	1289	api_cede (void)
1108	{	1290	{
		1291	dTHX;
1109	struct transfer_args ta;	1292	struct transfer_args ta;
1110		1293
1111	prepare_cede (&ta);	1294	prepare_cede (aTHX_ &ta);
1112		1295
1113	if (ta.prev != ta.next)	1296	if (ta.prev != ta.next)
1114	{	1297	{
1115	TRANSFER (ta);	1298	TRANSFER (ta);
1116	return 1;	1299	return 1;
…		…
1120	}	1303	}
1121		1304
1122	static int	1305	static int
1123	api_cede_notself (void)	1306	api_cede_notself (void)
1124	{	1307	{
		1308	dTHX;
1125	struct transfer_args ta;	1309	struct transfer_args ta;
1126		1310
1127	if (prepare_cede_notself (&ta))	1311	if (prepare_cede_notself (aTHX_ &ta))
1128	{	1312	{
1129	TRANSFER (ta);	1313	TRANSFER (ta);
1130	return 1;	1314	return 1;
1131	}	1315	}
1132	else	1316	else
…		…
1143	MUTEX_INIT (&coro_mutex);	1327	MUTEX_INIT (&coro_mutex);
1144	#endif	1328	#endif
1145	BOOT_PAGESIZE;	1329	BOOT_PAGESIZE;
1146		1330
1147	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));
1148		1337
1149	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));	1338	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1150	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));	1339	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1151	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));	1340	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1152	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));
1153	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));	1344	newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1154		1345
1155	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;
1156		1351
1157	coroapi.ver = CORO_API_VERSION;	1352	coroapi.ver = CORO_API_VERSION;
1158	coroapi.transfer = api_transfer;	1353	coroapi.transfer = api_transfer;
1159		1354
1160	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1355	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
…		…
1168	HV *hv;	1363	HV *hv;
1169	int i;	1364	int i;
1170		1365
1171	Newz (0, coro, 1, struct coro);	1366	Newz (0, coro, 1, struct coro);
1172	coro->args = newAV ();	1367	coro->args = newAV ();
1173	coro->save = CORO_SAVE_ALL;	1368	coro->save = CORO_SAVE_DEF;
1174	coro->flags = CF_NEW;	1369	coro->flags = CF_NEW;
1175		1370
		1371	if (coro_first) coro_first->prev = coro;
		1372	coro->next = coro_first;
		1373	coro_first = coro;
		1374
1176	hv = newHV ();	1375	coro->hv = hv = newHV ();
1177	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;
1178	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1377	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1179		1378
1180	for (i = 1; i < items; i++)	1379	for (i = 1; i < items; i++)
1181	av_push (coro->args, newSVsv (ST (i)));	1380	av_push (coro->args, newSVsv (ST (i)));
…		…
1185		1384
1186	int	1385	int
1187	save (SV *coro, int new_save = -1)	1386	save (SV *coro, int new_save = -1)
1188	CODE:	1387	CODE:
1189	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	}
1190	OUTPUT:	1400	OUTPUT:
1191	RETVAL	1401	RETVAL
1192		1402
1193	void	1403	void
1194	_set_stacklevel (...)	1404	_set_stacklevel (...)
…		…
1210		1420
1211	case 1:	1421	case 1:
1212	if (items != 2)	1422	if (items != 2)
1213	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);
1214		1424
1215	prepare_transfer (&ta, ST (0), ST (1));	1425	prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1216	break;	1426	break;
1217		1427
1218	case 2:	1428	case 2:
1219	prepare_schedule (&ta);	1429	prepare_schedule (aTHX_ &ta);
1220	break;	1430	break;
1221		1431
1222	case 3:	1432	case 3:
1223	prepare_cede (&ta);	1433	prepare_cede (aTHX_ &ta);
1224	break;	1434	break;
1225		1435
1226	case 4:	1436	case 4:
1227	if (!prepare_cede_notself (&ta))	1437	if (!prepare_cede_notself (aTHX_ &ta))
1228	XSRETURN_EMPTY;	1438	XSRETURN_EMPTY;
1229		1439
1230	break;	1440	break;
1231	}	1441	}
1232		1442
…		…
1238	}	1448	}
1239		1449
1240	bool	1450	bool
1241	_destroy (SV *coro_sv)	1451	_destroy (SV *coro_sv)
1242	CODE:	1452	CODE:
1243	RETVAL = coro_state_destroy (SvSTATE (coro_sv));	1453	RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1244	OUTPUT:	1454	OUTPUT:
1245	RETVAL	1455	RETVAL
1246		1456
1247	void	1457	void
1248	_exit (code)	1458	_exit (code)
…		…
1250	PROTOTYPE: $	1460	PROTOTYPE: $
1251	CODE:	1461	CODE:
1252	_exit (code);	1462	_exit (code);
1253		1463
1254	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
1255	cctx_count ()	1474	cctx_count ()
1256	CODE:	1475	CODE:
1257	RETVAL = cctx_count;	1476	RETVAL = cctx_count;
1258	OUTPUT:	1477	OUTPUT:
1259	RETVAL	1478	RETVAL
…		…
1263	CODE:	1482	CODE:
1264	RETVAL = cctx_idle;	1483	RETVAL = cctx_idle;
1265	OUTPUT:	1484	OUTPUT:
1266	RETVAL	1485	RETVAL
1267		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
		1571	SV *
		1572	has_stack (Coro::State coro)
		1573	PROTOTYPE: $
		1574	CODE:
		1575	RETVAL = boolSV (!!coro->cctx);
		1576	OUTPUT:
		1577	RETVAL
		1578
		1579	int
		1580	is_traced (Coro::State coro)
		1581	PROTOTYPE: $
		1582	CODE:
		1583	RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
		1584	OUTPUT:
		1585	RETVAL
		1586
		1587	IV
		1588	rss (Coro::State coro)
		1589	PROTOTYPE: $
		1590	CODE:
		1591	RETVAL = coro_rss (coro);
		1592	OUTPUT:
		1593	RETVAL
		1594
		1595
1268	MODULE = Coro::State PACKAGE = Coro	1596	MODULE = Coro::State PACKAGE = Coro
1269		1597
1270	BOOT:	1598	BOOT:
1271	{	1599	{
1272	int i;	1600	int i;
		1601
		1602	sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
		1603	sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
		1604	av_async_pool = get_av ("Coro::async_pool", TRUE);
		1605
		1606	coro_current = get_sv ("Coro::current", FALSE);
		1607	SvREADONLY_on (coro_current);
1273		1608
1274	coro_stash = gv_stashpv ("Coro", TRUE);	1609	coro_stash = gv_stashpv ("Coro", TRUE);
1275		1610
1276	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));	1611	newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1277	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));	1612	newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1278	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1613	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1279	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1614	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1280	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1615	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1281	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1616	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1282
1283	coro_current = get_sv ("Coro::current", FALSE);
1284	SvREADONLY_on (coro_current);
1285		1617
1286	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1618	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1287	coro_ready[i] = newAV ();	1619	coro_ready[i] = newAV ();
1288		1620
1289	{	1621	{
…		…
1339	CODE:	1671	CODE:
1340	RETVAL = boolSV (api_ready (self));	1672	RETVAL = boolSV (api_ready (self));
1341	OUTPUT:	1673	OUTPUT:
1342	RETVAL	1674	RETVAL
1343		1675
1344	SV *
1345	is_ready (SV *self)
1346	PROTOTYPE: $
1347	CODE:
1348	RETVAL = boolSV (api_is_ready (self));
1349	OUTPUT:
1350	RETVAL
1351
1352	int	1676	int
1353	nready (...)	1677	nready (...)
1354	PROTOTYPE:	1678	PROTOTYPE:
1355	CODE:	1679	CODE:
1356	RETVAL = coro_nready;	1680	RETVAL = coro_nready;
1357	OUTPUT:	1681	OUTPUT:
1358	RETVAL	1682	RETVAL
1359		1683
		1684	# for async_pool speedup
		1685	void
		1686	_pool_1 (SV *cb)
		1687	CODE:
		1688	{
		1689	int i, len;
		1690	HV hv = (HV )SvRV (coro_current);
		1691	AV *defav = GvAV (PL_defgv);
		1692	SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
		1693	AV *invoke_av;
		1694
		1695	if (!invoke)
		1696	croak ("\3terminate\2\n");
		1697
		1698	hv_store (hv, "desc", sizeof ("desc") - 1,
		1699	newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
		1700
		1701	invoke_av = (AV *)SvRV (invoke);
		1702	len = av_len (invoke_av);
		1703
		1704	sv_setsv (cb, AvARRAY (invoke_av)[0]);
		1705
		1706	if (len > 0)
		1707	{
		1708	av_fill (defav, len - 1);
		1709	for (i = 0; i < len; ++i)
		1710	av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
		1711	}
		1712
		1713	SvREFCNT_dec (invoke);
		1714	}
		1715
		1716	void
		1717	_pool_2 (SV *cb)
		1718	CODE:
		1719	{
		1720	struct coro *coro = SvSTATE (coro_current);
		1721
		1722	sv_setsv (cb, &PL_sv_undef);
		1723
		1724	if (coro_rss (coro) > SvIV (sv_pool_rss)
		1725	\|\| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
		1726	croak ("\3terminate\2\n");
		1727
		1728	av_clear (GvAV (PL_defgv));
		1729	hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
		1730	newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
		1731	coro->save = CORO_SAVE_DEF;
		1732	coro->prio = 0;
		1733	av_push (av_async_pool, newSVsv (coro_current));
		1734	}
		1735
		1736
1360	MODULE = Coro::State PACKAGE = Coro::AIO	1737	MODULE = Coro::State PACKAGE = Coro::AIO
1361		1738
1362	SV *	1739	SV *
1363	_get_state ()	1740	_get_state ()
1364	CODE:	1741	CODE:

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Coro/Coro/State.xs (file contents): Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs. Revision 1.167 by root, Thu Sep 27 15:52:31 2007 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs.
Revision 1.167 by root, Thu Sep 27 15:52:31 2007 UTC