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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.99 by root, Sun Nov 26 23:53:20 2006 UTC vs.
Revision 1.117 by root, Fri Dec 1 19:41:06 2006 UTC

…		…
4	#include "perl.h"	4	#include "perl.h"
5	#include "XSUB.h"	5	#include "XSUB.h"
6		6
7	#include "patchlevel.h"	7	#include "patchlevel.h"
8		8
9	#if PERL_VERSION < 6	9	#if USE_VALGRIND
		10	# include <valgrind/valgrind.h>
		11	#endif
		12
		13	/* the maximum number of idle cctx that will be pooled */
		14	#define MAX_IDLE_CCTX 8
		15
		16	#define PERL_VERSION_ATLEAST(a,b,c) \
		17	(PERL_REVISION > (a) \
		18	\|\| (PERL_REVISION == (a) \
		19	&& (PERL_VERSION > (b) \
		20	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		21
		22	#if !PERL_VERSION_ATLEAST (5,6,0)
10	# ifndef PL_ppaddr	23	# ifndef PL_ppaddr
11	# define PL_ppaddr ppaddr	24	# define PL_ppaddr ppaddr
12	# endif	25	# endif
13	# ifndef call_sv	26	# ifndef call_sv
14	# define call_sv perl_call_sv	27	# define call_sv perl_call_sv
…		…
52	# ifndef PAGESIZE	65	# ifndef PAGESIZE
53	# define PAGESIZE pagesize	66	# define PAGESIZE pagesize
54	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	67	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
55	static long pagesize;	68	static long pagesize;
56	# else	69	# else
57	# define BOOT_PAGESIZE	70	# define BOOT_PAGESIZE (void)0
58	# endif	71	# endif
		72	#else
		73	# define PAGESIZE 0
		74	# define BOOT_PAGESIZE (void)0
59	#endif	75	#endif
60		76
61	/* The next macro should declare a variable stacklevel that contains and approximation	77	/* The next macro should declare a variable stacklevel that contains and approximation
62	* to the current C stack pointer. Its property is that it changes with each call	78	* to the current C stack pointer. Its property is that it changes with each call
63	* and should be unique. */	79	* and should be unique. */
64	#define dSTACKLEVEL int stacklevel	80	#define dSTACKLEVEL int stacklevel
65	#define STACKLEVEL ((void *)&stacklevel)	81	#define STACKLEVEL ((void *)&stacklevel)
66		82
67	#define IN_DESTRUCT (PL_main_cv == Nullcv)	83	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		84
		85	#if __GNUC__ >= 3
		86	# define attribute(x) __attribute__(x)
		87	#else
		88	# define attribute(x)
		89	#endif
		90
		91	#define NOINLINE attribute ((noinline))
68		92
69	#include "CoroAPI.h"	93	#include "CoroAPI.h"
70		94
71	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */	95	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
72		96
…		…
82	static struct CoroAPI coroapi;	106	static struct CoroAPI coroapi;
83	static AV main_mainstack; / used to differentiate between $main and others */	107	static AV main_mainstack; / used to differentiate between $main and others */
84	static HV coro_state_stash, coro_stash;	108	static HV coro_state_stash, coro_stash;
85	static SV coro_mortal; / will be freed after next transfer */	109	static SV coro_mortal; / will be freed after next transfer */
86		110
		111	static struct coro_cctx *cctx_first;
		112	static int cctx_count, cctx_idle;
		113
87	/* this is a structure representing a c-level coroutine */	114	/* this is a structure representing a c-level coroutine */
88	typedef struct coro_stack {	115	typedef struct coro_cctx {
89	struct coro_stack *next;	116	struct coro_cctx *next;
90		117
91	/* the stack */	118	/* the stack */
92	void *sptr;	119	void *sptr;
93	long ssize; /* positive == mmap, otherwise malloc */	120	long ssize; /* positive == mmap, otherwise malloc */
94		121
95	/* cpu state */	122	/* cpu state */
96	void idle_sp; / sp of top-level transfer/schedule/cede call */	123	void idle_sp; / sp of top-level transfer/schedule/cede call */
97	JMPENV *top_env;	124	JMPENV *top_env;
98	coro_context cctx;	125	coro_context cctx;
99	} coro_stack;	126
		127	int inuse;
		128
		129	#if USE_VALGRIND
		130	int valgrind_id;
		131	#endif
		132	} coro_cctx;
		133
		134	enum {
		135	CF_RUNNING = 0x0001, /* coroutine is running */
		136	CF_READY = 0x0002, /* coroutine is ready */
		137	CF_NEW = 0x0004, /* ahs never been switched to */
		138	};
100		139
101	/* this is a structure representing a perl-level coroutine */	140	/* this is a structure representing a perl-level coroutine */
102	struct coro {	141	struct coro {
103	/* the c coroutine allocated to this perl coroutine, if any */	142	/* the c coroutine allocated to this perl coroutine, if any */
104	coro_stack *stack;	143	coro_cctx *cctx;
105		144
106	/* data associated with this coroutine (initial args) */	145	/* data associated with this coroutine (initial args) */
107	AV *args;	146	AV *args;
108	int refcnt;	147	int refcnt;
		148	int flags;
109		149
110	/* optionally saved, might be zero */	150	/* optionally saved, might be zero */
111	AV *defav;	151	AV *defav;
112	SV *defsv;	152	SV *defsv;
113	SV *errsv;	153	SV *errsv;
114		154
115	/* saved global state not related to stacks */	155	#define VAR(name,type) type name;
116	U8 dowarn;	156	# include "state.h"
117	I32 in_eval;	157	#undef VAR
118
119	/* the stacks and related info (callchain etc..) */
120	PERL_SI *curstackinfo;
121	AV *curstack;
122	AV *mainstack;
123	SV **stack_sp;
124	OP *op;
125	SV **curpad;
126	AV *comppad;
127	CV *compcv;
128	SV **stack_base;
129	SV **stack_max;
130	SV **tmps_stack;
131	I32 tmps_floor;
132	I32 tmps_ix;
133	I32 tmps_max;
134	I32 *markstack;
135	I32 *markstack_ptr;
136	I32 *markstack_max;
137	I32 *scopestack;
138	I32 scopestack_ix;
139	I32 scopestack_max;
140	ANY *savestack;
141	I32 savestack_ix;
142	I32 savestack_max;
143	OP **retstack;
144	I32 retstack_ix;
145	I32 retstack_max;
146	PMOP *curpm;
147	COP *curcop;
148		158
149	/* coro process data */	159	/* coro process data */
150	int prio;	160	int prio;
151	};	161	};
152		162
…		…
159	AV *padlist = CvPADLIST (cv);	169	AV *padlist = CvPADLIST (cv);
160	AV newpadlist, newpad;	170	AV newpadlist, newpad;
161		171
162	newpadlist = newAV ();	172	newpadlist = newAV ();
163	AvREAL_off (newpadlist);	173	AvREAL_off (newpadlist);
164	#if PERL_VERSION < 9	174	#if PERL_VERSION_ATLEAST (5,9,0)
		175	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		176	#else
165	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	177	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
166	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
168	#endif	178	#endif
169	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	179	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
170	--AvFILLp (padlist);	180	--AvFILLp (padlist);
171		181
172	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	182	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
216		226
217	#define PERL_MAGIC_coro PERL_MAGIC_ext	227	#define PERL_MAGIC_coro PERL_MAGIC_ext
218		228
219	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	229	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
220		230
		231	#define CORO_MAGIC(cv) \
		232	SvMAGIC (cv) \
		233	? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
		234	? SvMAGIC (cv) \
		235	: mg_find ((SV *)cv, PERL_MAGIC_coro) \
		236	: 0
		237
221	/* the next two functions merely cache the padlists */	238	/* the next two functions merely cache the padlists */
222	static void	239	static void
223	get_padlist (CV *cv)	240	get_padlist (CV *cv)
224	{	241	{
225	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	242	MAGIC *mg = CORO_MAGIC (cv);
		243	AV *av;
226		244
227	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	245	if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
228	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	246	CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
229	else	247	else
230	{	248	{
231	#if 0	249	#if 0
232	/* this is probably cleaner, but also slower? */	250	/* this is probably cleaner, but also slower? */
233	CV *cp = Perl_cv_clone (cv);	251	CV *cp = Perl_cv_clone (cv);
…		…
241	}	259	}
242		260
243	static void	261	static void
244	put_padlist (CV *cv)	262	put_padlist (CV *cv)
245	{	263	{
246	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	264	MAGIC *mg = CORO_MAGIC (cv);
		265	AV *av;
247		266
248	if (!mg)	267	if (!mg)
249	{	268	{
250	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);	269	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
251	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);	270	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
252	mg->mg_virtual = &vtbl_coro;	271	mg->mg_virtual = &vtbl_coro;
253	mg->mg_obj = (SV *)newAV ();	272	mg->mg_obj = (SV *)newAV ();
254	}	273	}
255		274
256	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));	275	av = (AV *)mg->mg_obj;
		276
		277	if (AvFILLp (av) >= AvMAX (av))
		278	av_extend (av, AvMAX (av) + 1);
		279
		280	AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
257	}	281	}
258		282
259	#define SB do {	283	#define SB do {
260	#define SE } while (0)	284	#define SE } while (0)
261		285
262	#define LOAD(state) load_state((state));	286	#define LOAD(state) load_state ((state))
263	#define SAVE(state,flags) save_state((state),(flags));	287	#define SAVE(state,flags) save_state ((state),(flags))
264		288
265	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	289	#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
266		290
267	static void	291	static void
268	load_state(Coro__State c)	292	load_state (Coro__State c)
269	{	293	{
270	PL_dowarn = c->dowarn;	294	#define VAR(name,type) PL_ ## name = c->name;
271	PL_in_eval = c->in_eval;	295	# include "state.h"
272		296	#undef VAR
273	PL_curstackinfo = c->curstackinfo;
274	PL_curstack = c->curstack;
275	PL_mainstack = c->mainstack;
276	PL_stack_sp = c->stack_sp;
277	PL_op = c->op;
278	PL_curpad = c->curpad;
279	PL_comppad = c->comppad;
280	PL_compcv = c->compcv;
281	PL_stack_base = c->stack_base;
282	PL_stack_max = c->stack_max;
283	PL_tmps_stack = c->tmps_stack;
284	PL_tmps_floor = c->tmps_floor;
285	PL_tmps_ix = c->tmps_ix;
286	PL_tmps_max = c->tmps_max;
287	PL_markstack = c->markstack;
288	PL_markstack_ptr = c->markstack_ptr;
289	PL_markstack_max = c->markstack_max;
290	PL_scopestack = c->scopestack;
291	PL_scopestack_ix = c->scopestack_ix;
292	PL_scopestack_max = c->scopestack_max;
293	PL_savestack = c->savestack;
294	PL_savestack_ix = c->savestack_ix;
295	PL_savestack_max = c->savestack_max;
296	#if PERL_VERSION < 9
297	PL_retstack = c->retstack;
298	PL_retstack_ix = c->retstack_ix;
299	PL_retstack_max = c->retstack_max;
300	#endif
301	PL_curpm = c->curpm;
302	PL_curcop = c->curcop;
303		297
304	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	298	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
305	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	299	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
306	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	300	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
307		301
…		…
310	CV *cv;	304	CV *cv;
311		305
312	/* now do the ugly restore mess */	306	/* now do the ugly restore mess */
313	while ((cv = (CV *)POPs))	307	while ((cv = (CV *)POPs))
314	{	308	{
315	AV padlist = (AV )POPs;
316
317	if (padlist)
318	{
319	put_padlist (cv); /* mark this padlist as available */	309	put_padlist (cv); /* mark this padlist as available */
320	CvPADLIST(cv) = padlist;	310	CvDEPTH (cv) = PTR2IV (POPs);
321	}	311	CvPADLIST (cv) = (AV *)POPs;
322
323	++CvDEPTH(cv);
324	}	312	}
325		313
326	PUTBACK;	314	PUTBACK;
327	}	315	}
328	}	316	}
329		317
330	static void	318	static void
331	save_state(Coro__State c, int flags)	319	save_state (Coro__State c, int flags)
332	{	320	{
333	{	321	{
334	dSP;	322	dSP;
335	I32 cxix = cxstack_ix;	323	I32 cxix = cxstack_ix;
336	PERL_CONTEXT *ccstk = cxstack;	324	PERL_CONTEXT *ccstk = cxstack;
…		…
347	{	335	{
348	while (cxix >= 0)	336	while (cxix >= 0)
349	{	337	{
350	PERL_CONTEXT *cx = &ccstk[cxix--];	338	PERL_CONTEXT *cx = &ccstk[cxix--];
351		339
352	if (CxTYPE(cx) == CXt_SUB)	340	if (CxTYPE (cx) == CXt_SUB)
353	{	341	{
354	CV *cv = cx->blk_sub.cv;	342	CV *cv = cx->blk_sub.cv;
		343
355	if (CvDEPTH(cv))	344	if (CvDEPTH (cv))
356	{	345	{
357	EXTEND (SP, CvDEPTH(cv)*2);	346	EXTEND (SP, 3);
358		347
359	while (--CvDEPTH(cv))
360	{
361	/* this tells the restore code to increment CvDEPTH */
362	PUSHs (Nullsv);
363	PUSHs ((SV *)cv);
364	}
365
366	PUSHs ((SV *)CvPADLIST(cv));	348	PUSHs ((SV *)CvPADLIST (cv));
		349	PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
367	PUSHs ((SV *)cv);	350	PUSHs ((SV *)cv);
368		351
		352	CvDEPTH (cv) = 0;
369	get_padlist (cv);	353	get_padlist (cv);
370	}	354	}
371	}	355	}
372	#ifdef CXt_FORMAT	356	#ifdef CXt_FORMAT
373	else if (CxTYPE(cx) == CXt_FORMAT)	357	else if (CxTYPE (cx) == CXt_FORMAT)
374	{	358	{
375	/* I never used formats, so how should I know how these are implemented? */	359	/* I never used formats, so how should I know how these are implemented? */
376	/* my bold guess is as a simple, plain sub... */	360	/* my bold guess is as a simple, plain sub... */
377	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	361	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
378	}	362	}
…		…
392		376
393	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	377	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
394	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	378	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
395	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	379	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
396		380
397	c->dowarn = PL_dowarn;	381	#define VAR(name,type)c->name = PL_ ## name;
398	c->in_eval = PL_in_eval;	382	# include "state.h"
399		383	#undef VAR
400	c->curstackinfo = PL_curstackinfo;
401	c->curstack = PL_curstack;
402	c->mainstack = PL_mainstack;
403	c->stack_sp = PL_stack_sp;
404	c->op = PL_op;
405	c->curpad = PL_curpad;
406	c->comppad = PL_comppad;
407	c->compcv = PL_compcv;
408	c->stack_base = PL_stack_base;
409	c->stack_max = PL_stack_max;
410	c->tmps_stack = PL_tmps_stack;
411	c->tmps_floor = PL_tmps_floor;
412	c->tmps_ix = PL_tmps_ix;
413	c->tmps_max = PL_tmps_max;
414	c->markstack = PL_markstack;
415	c->markstack_ptr = PL_markstack_ptr;
416	c->markstack_max = PL_markstack_max;
417	c->scopestack = PL_scopestack;
418	c->scopestack_ix = PL_scopestack_ix;
419	c->scopestack_max = PL_scopestack_max;
420	c->savestack = PL_savestack;
421	c->savestack_ix = PL_savestack_ix;
422	c->savestack_max = PL_savestack_max;
423	#if PERL_VERSION < 9
424	c->retstack = PL_retstack;
425	c->retstack_ix = PL_retstack_ix;
426	c->retstack_max = PL_retstack_max;
427	#endif
428	c->curpm = PL_curpm;
429	c->curcop = PL_curcop;
430	}	384	}
431		385
432	/*	386	/*
433	* allocate various perl stacks. This is an exact copy	387	* allocate various perl stacks. This is an exact copy
434	* of perl.c:init_stacks, except that it uses less memory	388	* of perl.c:init_stacks, except that it uses less memory
…		…
436	* not usually need a lot of stackspace.	390	* not usually need a lot of stackspace.
437	*/	391	*/
438	static void	392	static void
439	coro_init_stacks ()	393	coro_init_stacks ()
440	{	394	{
441	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	395	PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
442	PL_curstackinfo->si_type = PERLSI_MAIN;	396	PL_curstackinfo->si_type = PERLSI_MAIN;
443	PL_curstack = PL_curstackinfo->si_stack;	397	PL_curstack = PL_curstackinfo->si_stack;
444	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	398	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
445		399
446	PL_stack_base = AvARRAY(PL_curstack);	400	PL_stack_base = AvARRAY(PL_curstack);
447	PL_stack_sp = PL_stack_base;	401	PL_stack_sp = PL_stack_base;
448	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);	402	PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
449		403
450	New(50,PL_tmps_stack,96,SV*);	404	New(50,PL_tmps_stack,128,SV*);
451	PL_tmps_floor = -1;	405	PL_tmps_floor = -1;
452	PL_tmps_ix = -1;	406	PL_tmps_ix = -1;
453	PL_tmps_max = 96;	407	PL_tmps_max = 128;
454		408
455	New(54,PL_markstack,16,I32);	409	New(54,PL_markstack,32,I32);
456	PL_markstack_ptr = PL_markstack;	410	PL_markstack_ptr = PL_markstack;
457	PL_markstack_max = PL_markstack + 16;	411	PL_markstack_max = PL_markstack + 32;
458		412
459	#ifdef SET_MARK_OFFSET	413	#ifdef SET_MARK_OFFSET
460	SET_MARK_OFFSET;	414	SET_MARK_OFFSET;
461	#endif	415	#endif
462		416
463	New(54,PL_scopestack,16,I32);	417	New(54,PL_scopestack,32,I32);
464	PL_scopestack_ix = 0;	418	PL_scopestack_ix = 0;
465	PL_scopestack_max = 16;	419	PL_scopestack_max = 32;
466		420
467	New(54,PL_savestack,96,ANY);	421	New(54,PL_savestack,64,ANY);
468	PL_savestack_ix = 0;	422	PL_savestack_ix = 0;
469	PL_savestack_max = 96;	423	PL_savestack_max = 64;
470		424
471	#if PERL_VERSION < 9	425	#if !PERL_VERSION_ATLEAST (5,9,0)
472	New(54,PL_retstack,8,OP*);	426	New(54,PL_retstack,16,OP*);
473	PL_retstack_ix = 0;	427	PL_retstack_ix = 0;
474	PL_retstack_max = 8;	428	PL_retstack_max = 16;
475	#endif	429	#endif
476	}	430	}
477		431
478	/*	432	/*
479	* destroy the stacks, the callchain etc...	433	* destroy the stacks, the callchain etc...
480	*/	434	*/
481	static void	435	static void
482	destroy_stacks()	436	coro_destroy_stacks ()
483	{	437	{
484	if (!IN_DESTRUCT)	438	if (!IN_DESTRUCT)
485	{	439	{
486	/* is this ugly, I ask? */	440	/* is this ugly, I ask? */
487	LEAVE_SCOPE (0);	441	LEAVE_SCOPE (0);
…		…
518		472
519	Safefree (PL_tmps_stack);	473	Safefree (PL_tmps_stack);
520	Safefree (PL_markstack);	474	Safefree (PL_markstack);
521	Safefree (PL_scopestack);	475	Safefree (PL_scopestack);
522	Safefree (PL_savestack);	476	Safefree (PL_savestack);
523	#if PERL_VERSION < 9	477	#if !PERL_VERSION_ATLEAST (5,9,0)
524	Safefree (PL_retstack);	478	Safefree (PL_retstack);
525	#endif	479	#endif
526	}	480	}
527		481
528	static void	482	static void
529	setup_coro (struct coro *coro)	483	setup_coro (struct coro *coro)
530	{	484	{
531	/*	485	/*
532	* emulate part of the perl startup here.	486	* emulate part of the perl startup here.
533	*/	487	*/
534	dTHX;
535	dSP;
536	UNOP myop;
537	SV sub_init = (SV )get_cv ("Coro::State::coro_init", FALSE);
538		488
539	coro_init_stacks ();	489	coro_init_stacks ();
540	/PL_curcop = 0;/	490
541	/PL_in_eval = PL_in_eval;/ /* inherit */	491	PL_curcop = &PL_compiling;
		492	PL_in_eval = EVAL_NULL;
		493	PL_curpm = 0;
		494	PL_localizing = 0;
		495	PL_dirty = 0;
		496	PL_restartop = 0;
		497
		498	{
		499	dSP;
		500	LOGOP myop;
		501
		502	/* I have no idea why this is needed, but it is */
		503	PUSHMARK (SP);
		504
542	SvREFCNT_dec (GvAV (PL_defgv));	505	SvREFCNT_dec (GvAV (PL_defgv));
543	GvAV (PL_defgv) = coro->args; coro->args = 0;	506	GvAV (PL_defgv) = coro->args; coro->args = 0;
544		507
545	SPAGAIN;
546
547	Zero (&myop, 1, UNOP);	508	Zero (&myop, 1, LOGOP);
548	myop.op_next = Nullop;	509	myop.op_next = Nullop;
549	myop.op_flags = OPf_WANT_VOID;	510	myop.op_flags = OPf_WANT_VOID;
550		511
551	PL_op = (OP *)&myop;	512	PL_op = (OP *)&myop;
552		513
553	PUSHMARK(SP);	514	PUSHMARK (SP);
554	XPUSHs (sub_init);	515	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
555	PUTBACK;	516	PUTBACK;
556	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	517	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
557	SPAGAIN;	518	SPAGAIN;
		519	}
558		520
559	ENTER; /* necessary e.g. for dounwind */	521	ENTER; /* necessary e.g. for dounwind */
560	}	522	}
561		523
562	static void	524	static void
…		…
567	SvREFCNT_dec (coro_mortal);	529	SvREFCNT_dec (coro_mortal);
568	coro_mortal = 0;	530	coro_mortal = 0;
569	}	531	}
570	}	532	}
571		533
572	static void	534	static void NOINLINE
573	prepare_cctx (coro_stack *cctx)	535	prepare_cctx (coro_cctx *cctx)
574	{	536	{
575	dSP;	537	dSP;
576	UNOP myop;	538	LOGOP myop;
577		539
578	Zero (&myop, 1, UNOP);	540	Zero (&myop, 1, LOGOP);
579	myop.op_next = PL_op;	541	myop.op_next = PL_op;
580	myop.op_flags = OPf_WANT_VOID \| OPf_STACKED;	542	myop.op_flags = OPf_WANT_VOID;
581		543
		544	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
		545
582	PUSHMARK(SP);	546	PUSHMARK (SP);
583	EXTEND (SP, 2);
584	PUSHs (newSViv (PTR2IV (cctx)));
585	PUSHs ((SV *)get_cv ("Coro::State::cctx_init", FALSE));	547	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
586	PUTBACK;	548	PUTBACK;
587	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);	549	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
588	SPAGAIN;	550	SPAGAIN;
589	}	551	}
590		552
591	static void	553	static void
592	coro_run (void *arg)	554	coro_run (void *arg)
593	{	555	{
		556	/* coro_run is the alternative epilogue of transfer() */
		557	UNLOCK;
		558
594	/*	559	/*
595	* this is a _very_ stripped down perl interpreter ;)	560	* this is a _very_ stripped down perl interpreter ;)
596	*/	561	*/
597	UNLOCK;
598
599	PL_top_env = &PL_start_env;	562	PL_top_env = &PL_start_env;
		563
		564	/* inject call to cctx_init */
600	prepare_cctx ((coro_stack *)arg);	565	prepare_cctx ((coro_cctx *)arg);
601		566
602	/* somebody will hit me for both perl_run and PL_restartop */	567	/* somebody will hit me for both perl_run and PL_restartop */
603	perl_run (PERL_GET_CONTEXT);	568	perl_run (PL_curinterp);
604		569
605	fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr);	570	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
606	abort ();	571	abort ();
607	}	572	}
608		573
609	static coro_stack *	574	static coro_cctx *
610	stack_new ()	575	cctx_new ()
611	{	576	{
612	coro_stack *stack;	577	coro_cctx *cctx;
613		578
		579	++cctx_count;
		580
614	New (0, stack, 1, coro_stack);	581	New (0, cctx, 1, coro_cctx);
615		582
616	#if HAVE_MMAP	583	#if HAVE_MMAP
617		584
618	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;	585	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
619	/* mmap suppsedly does allocate-on-write for us */	586	/* mmap suppsedly does allocate-on-write for us */
620	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	587	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
621		588
622	if (stack->sptr == (void *)-1)	589	if (cctx->sptr == (void *)-1)
623	{	590	{
624	perror ("FATAL: unable to mmap stack for coroutine");	591	perror ("FATAL: unable to mmap stack for coroutine");
625	_exit (EXIT_FAILURE);	592	_exit (EXIT_FAILURE);
626	}	593	}
627		594
628	# if STACKGUARD	595	# if STACKGUARD
629	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	596	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
630	# endif	597	# endif
631		598
632	#else	599	#else
633		600
634	stack->ssize = STACKSIZE * (long)sizeof (long);	601	cctx->ssize = STACKSIZE * (long)sizeof (long);
635	New (0, stack->sptr, STACKSIZE, long);	602	New (0, cctx->sptr, STACKSIZE, long);
636		603
637	if (!stack->sptr)	604	if (!cctx->sptr)
638	{	605	{
639	perror (stderr, "FATAL: unable to malloc stack for coroutine");	606	perror ("FATAL: unable to malloc stack for coroutine");
640	_exit (EXIT_FAILURE);	607	_exit (EXIT_FAILURE);
641	}	608	}
642		609
643	#endif	610	#endif
644		611
		612	#if USE_VALGRIND
		613	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		614	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		615	cctx->ssize + (char *)cctx->sptr
		616	);
		617	#endif
		618
645	coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize);	619	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
646		620
647	return stack;	621	return cctx;
648	}	622	}
649		623
650	static void	624	static void
651	stack_free (coro_stack *stack)	625	cctx_destroy (coro_cctx *cctx)
652	{	626	{
653	if (!stack)	627	if (!cctx)
654	return;	628	return;
655		629
		630	--cctx_count;
		631
		632	#if USE_VALGRIND
		633	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		634	#endif
		635
656	#if HAVE_MMAP	636	#if HAVE_MMAP
657	munmap (stack->sptr, stack->ssize);	637	munmap (cctx->sptr, cctx->ssize);
658	#else	638	#else
659	Safefree (stack->sptr);	639	Safefree (cctx->sptr);
660	#endif	640	#endif
661		641
662	Safefree (stack);	642	Safefree (cctx);
663	}	643	}
664		644
665	static coro_stack *stack_first;
666
667	static coro_stack *	645	static coro_cctx *
668	stack_get ()	646	cctx_get ()
669	{	647	{
670	coro_stack *stack;	648	coro_cctx *cctx;
671		649
672	if (stack_first)	650	if (cctx_first)
673	{	651	{
674	stack = stack_first;	652	cctx = cctx_first;
675	stack_first = stack->next;	653	cctx_first = cctx->next;
		654	--cctx_idle;
676	}	655	}
677	else	656	else
678	{	657	{
679	stack = stack_new ();	658	cctx = cctx_new ();
680	PL_op = PL_op->op_next;	659	PL_op = PL_op->op_next;
681	}	660	}
682		661
683	return stack;	662	return cctx;
684	}	663	}
685		664
686	static void	665	static void
687	stack_put (coro_stack *stack)	666	cctx_put (coro_cctx *cctx)
688	{	667	{
689	stack->next = stack_first;	668	/* free another cctx if overlimit */
690	stack_first = stack;	669	if (cctx_idle >= MAX_IDLE_CCTX)
		670	{
		671	coro_cctx *first = cctx_first;
		672	cctx_first = first->next;
		673	--cctx_idle;
		674
		675	assert (!first->inuse);
		676	cctx_destroy (first);
		677	}
		678
		679	++cctx_idle;
		680	cctx->next = cctx_first;
		681	cctx_first = cctx;
691	}	682	}
692		683
693	/* never call directly, always through the coro_state_transfer global variable */	684	/* never call directly, always through the coro_state_transfer global variable */
694	static void	685	static void NOINLINE
695	transfer_impl (struct coro prev, struct coro next, int flags)	686	transfer (struct coro prev, struct coro next, int flags)
696	{	687	{
697	dSTACKLEVEL;	688	dSTACKLEVEL;
698		689
699	/* sometimes transfer is only called to set idle_sp */	690	/* sometimes transfer is only called to set idle_sp */
700	if (flags == TRANSFER_SET_STACKLEVEL)	691	if (flags == TRANSFER_SET_STACKLEVEL)
701	((coro_stack *)prev)->idle_sp = STACKLEVEL;	692	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
702	else if (prev != next)	693	else if (prev != next)
703	{	694	{
704	coro_stack *prev__stack;	695	coro_cctx *prev__cctx;
		696
		697	if (prev->flags & CF_NEW)
		698	{
		699	/* create a new empty context */
		700	Newz (0, prev->cctx, 1, coro_cctx);
		701	prev->cctx->inuse = 1;
		702	prev->flags &= ~CF_NEW;
		703	prev->flags \|= CF_RUNNING;
		704	}
		705
		706	/TODO: must not croak here /
		707	if (!prev->flags & CF_RUNNING)
		708	croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
		709
		710	if (next->flags & CF_RUNNING)
		711	croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
		712
		713	prev->flags &= ~CF_RUNNING;
		714	next->flags \|= CF_RUNNING;
705		715
706	LOCK;	716	LOCK;
707		717
708	if (next->mainstack)	718	if (next->mainstack)
709	{	719	{
…		…
712	LOAD (next);	722	LOAD (next);
713	}	723	}
714	else	724	else
715	{	725	{
716	/* need to start coroutine */	726	/* need to start coroutine */
		727	assert (next->flags & CF_NEW);
		728	next->flags &= ~CF_NEW;
717	/* first get rid of the old state */	729	/* first get rid of the old state */
718	SAVE (prev, -1);	730	SAVE (prev, -1);
719	/* setup coroutine call */	731	/* setup coroutine call */
720	setup_coro (next);	732	setup_coro (next);
721	/* need a stack */	733	/* need a new stack */
722	next->stack = 0;	734	assert (!next->stack);
723	}	735	}
724		736
725	if (!prev->stack)
726	/* create a new empty context */
727	Newz (0, prev->stack, 1, coro_stack);
728
729	prev__stack = prev->stack;	737	prev__cctx = prev->cctx;
730		738
731	/* possibly "free" the stack */	739	/* possibly "free" the cctx */
732	if (prev__stack->idle_sp == STACKLEVEL)	740	if (prev__cctx->idle_sp == STACKLEVEL && 0)
733	{	741	{
734	stack_put (prev__stack);	742	/* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
		743	assert (PL_top_env == prev__cctx->top_env);
		744
735	prev->stack = 0;	745	prev->cctx = 0;
		746
		747	cctx_put (prev__cctx);
		748	prev__cctx->inuse = 0;
736	}	749	}
737		750
738	if (!next->stack)	751	if (!next->cctx)
739	next->stack = stack_get ();
740
741	if (prev__stack != next->stack)
742	{	752	{
		753	next->cctx = cctx_get ();
		754	assert (!next->cctx->inuse);
		755	next->cctx->inuse = 1;
		756	}
		757
		758	if (prev__cctx != next->cctx)
		759	{
743	prev__stack->top_env = PL_top_env;	760	prev__cctx->top_env = PL_top_env;
744	PL_top_env = next->stack->top_env;	761	PL_top_env = next->cctx->top_env;
745	coro_transfer (&prev__stack->cctx, &next->stack->cctx);	762	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
746	}	763	}
747		764
748	free_coro_mortal ();	765	free_coro_mortal ();
749		766
750	UNLOCK;	767	UNLOCK;
751	}	768	}
752	}	769	}
753
754	/* use this function pointer to call the above function */
755	/* this is done to increase chances of the compiler not inlining the call */
756	/* not static to make it even harder for the compiler (and theoretically impossible in most cases */
757	void (coro_state_transfer)(struct coro prev, struct coro *next, int flags) = transfer_impl;
758		770
759	struct transfer_args	771	struct transfer_args
760	{	772	{
761	struct coro prev, next;	773	struct coro prev, next;
762	int flags;	774	int flags;
763	};	775	};
764		776
765	#define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags)	777	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
766		778
767	static void	779	static void
768	coro_state_destroy (struct coro *coro)	780	coro_state_destroy (struct coro *coro)
769	{	781	{
770	if (coro->refcnt--)	782	if (coro->refcnt--)
…		…
772		784
773	if (coro->mainstack && coro->mainstack != main_mainstack)	785	if (coro->mainstack && coro->mainstack != main_mainstack)
774	{	786	{
775	struct coro temp;	787	struct coro temp;
776		788
		789	if (coro->flags & CF_RUNNING)
		790	croak ("FATAL: tried to destroy currently running coroutine");
		791
777	SAVE ((&temp), TRANSFER_SAVE_ALL);	792	SAVE ((&temp), TRANSFER_SAVE_ALL);
778	LOAD (coro);	793	LOAD (coro);
779		794
780	destroy_stacks ();	795	coro_destroy_stacks ();
781		796
782	LOAD ((&temp)); /* this will get rid of defsv etc.. */	797	LOAD ((&temp)); /* this will get rid of defsv etc.. */
783		798
784	coro->mainstack = 0;	799	coro->mainstack = 0;
785	}	800	}
786		801
787	stack_free (coro->stack);	802	cctx_destroy (coro->cctx);
788	SvREFCNT_dec (coro->args);	803	SvREFCNT_dec (coro->args);
789	Safefree (coro);	804	Safefree (coro);
790	}	805	}
791		806
792	static int	807	static int
…		…
808	++coro->refcnt;	823	++coro->refcnt;
809		824
810	return 0;	825	return 0;
811	}	826	}
812		827
813	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	828	static MGVTBL coro_state_vtbl = {
		829	0, 0, 0, 0,
		830	coro_state_clear,
		831	0,
		832	#ifdef MGf_DUP
		833	coro_state_dup,
		834	#else
		835	# define MGf_DUP 0
		836	#endif
		837	};
814		838
815	static struct coro *	839	static struct coro *
816	SvSTATE (SV *coro)	840	SvSTATE (SV *coro)
817	{	841	{
818	HV *stash;	842	HV *stash;
…		…
843	}	867	}
844		868
845	static void	869	static void
846	api_transfer (SV prev, SV next, int flags)	870	api_transfer (SV prev, SV next, int flags)
847	{	871	{
848	dTHX;
849	struct transfer_args ta;	872	struct transfer_args ta;
850		873
851	prepare_transfer (&ta, prev, next, flags);	874	prepare_transfer (&ta, prev, next, flags);
852	TRANSFER (ta);	875	TRANSFER (ta);
853	}	876	}
…		…
860	#define PRIO_LOW -1	883	#define PRIO_LOW -1
861	#define PRIO_IDLE -3	884	#define PRIO_IDLE -3
862	#define PRIO_MIN -4	885	#define PRIO_MIN -4
863		886
864	/* for Coro.pm */	887	/* for Coro.pm */
865	static GV coro_current, coro_idle;	888	static SV *coro_current;
866	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	889	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
867	static int coro_nready;	890	static int coro_nready;
868		891
869	static void	892	static void
870	coro_enq (SV *sv)	893	coro_enq (SV *coro_sv)
871	{	894	{
872	int prio;
873
874	if (SvTYPE (sv) != SVt_PVHV)
875	croak ("Coro::ready tried to enqueue something that is not a coroutine");
876
877	prio = SvSTATE (sv)->prio;
878
879	av_push (coro_ready [prio - PRIO_MIN], sv);	895	av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
880	coro_nready++;	896	coro_nready++;
881	}	897	}
882		898
883	static SV *	899	static SV *
884	coro_deq (int min_prio)	900	coro_deq (int min_prio)
…		…
897	}	913	}
898		914
899	return 0;	915	return 0;
900	}	916	}
901		917
902	static void	918	static int
903	api_ready (SV *coro)	919	api_ready (SV *coro_sv)
904	{	920	{
905	dTHX;	921	struct coro *coro;
906		922
907	if (SvROK (coro))	923	if (SvROK (coro_sv))
908	coro = SvRV (coro);	924	coro_sv = SvRV (coro_sv);
		925
		926	coro = SvSTATE (coro_sv);
		927
		928	if (coro->flags & CF_READY)
		929	return 0;
		930
		931	#if 0 /* this is actually harmless */
		932	if (coro->flags & CF_RUNNING)
		933	croak ("Coro::ready called on currently running coroutine");
		934	#endif
		935
		936	coro->flags \|= CF_READY;
909		937
910	LOCK;	938	LOCK;
911	coro_enq (SvREFCNT_inc (coro));	939	coro_enq (SvREFCNT_inc (coro_sv));
912	UNLOCK;	940	UNLOCK;
		941
		942	return 1;
		943	}
		944
		945	static int
		946	api_is_ready (SV *coro_sv)
		947	{
		948	return !!SvSTATE (coro_sv)->flags & CF_READY;
913	}	949	}
914		950
915	static void	951	static void
916	prepare_schedule (struct transfer_args *ta)	952	prepare_schedule (struct transfer_args *ta)
917	{	953	{
918	SV current, prev, *next;	954	SV prev, next;
919
920	current = GvSV (coro_current);
921		955
922	for (;;)	956	for (;;)
923	{	957	{
924	LOCK;	958	LOCK;
925	next = coro_deq (PRIO_MIN);	959	next = coro_deq (PRIO_MIN);
…		…
934	ENTER;	968	ENTER;
935	SAVETMPS;	969	SAVETMPS;
936		970
937	PUSHMARK (SP);	971	PUSHMARK (SP);
938	PUTBACK;	972	PUTBACK;
939	call_sv (GvSV (coro_idle), G_DISCARD);	973	call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
940		974
941	FREETMPS;	975	FREETMPS;
942	LEAVE;	976	LEAVE;
943	}	977	}
944	}	978	}
945		979
946	prev = SvRV (current);	980	prev = SvRV (coro_current);
947	SvRV (current) = next;	981	SvRV_set (coro_current, next);
948		982
949	/* free this only after the transfer */	983	/* free this only after the transfer */
950	LOCK;	984	LOCK;
951	free_coro_mortal ();	985	free_coro_mortal ();
952	UNLOCK;	986	UNLOCK;
953	coro_mortal = prev;	987	coro_mortal = prev;
954		988
		989	assert (!SvROK(prev));//D
		990	assert (!SvROK(next));//D
		991
955	ta->prev = SvSTATE (prev);	992	ta->prev = SvSTATE (prev);
956	ta->next = SvSTATE (next);	993	ta->next = SvSTATE (next);
957	ta->flags = TRANSFER_SAVE_ALL;	994	ta->flags = TRANSFER_SAVE_ALL;
		995
		996	assert (ta->flags & CF_READY);
		997	ta->next->flags &= ~CF_READY;
958	}	998	}
959		999
960	static void	1000	static void
961	prepare_cede (struct transfer_args *ta)	1001	prepare_cede (struct transfer_args *ta)
962	{	1002	{
963	LOCK;	1003	api_ready (coro_current);
964	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
965	UNLOCK;
966		1004
967	prepare_schedule (ta);	1005	prepare_schedule (ta);
968	}	1006	}
969		1007
970	static void	1008	static void
971	api_schedule (void)	1009	api_schedule (void)
972	{	1010	{
973	dTHX;
974	struct transfer_args ta;	1011	struct transfer_args ta;
975		1012
976	prepare_schedule (&ta);	1013	prepare_schedule (&ta);
977	TRANSFER (ta);	1014	TRANSFER (ta);
978	}	1015	}
979		1016
980	static void	1017	static void
981	api_cede (void)	1018	api_cede (void)
982	{	1019	{
983	dTHX;
984	struct transfer_args ta;	1020	struct transfer_args ta;
985		1021
986	prepare_cede (&ta);	1022	prepare_cede (&ta);
987	TRANSFER (ta);	1023	TRANSFER (ta);
988	}	1024	}
…		…
1020	HV *hv;	1056	HV *hv;
1021	int i;	1057	int i;
1022		1058
1023	Newz (0, coro, 1, struct coro);	1059	Newz (0, coro, 1, struct coro);
1024	coro->args = newAV ();	1060	coro->args = newAV ();
		1061	coro->flags = CF_NEW;
1025		1062
1026	hv = newHV ();	1063	hv = newHV ();
1027	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1064	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
1028	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1065	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1029		1066
1030	for (i = 1; i < items; i++)	1067	for (i = 1; i < items; i++)
1031	av_push (coro->args, newSVsv (ST (i)));	1068	av_push (coro->args, newSVsv (ST (i)));
1032
1033	/coro->mainstack = 0; //actual work is done inside transfer /
1034	/coro->stack = 0;/
1035	}	1069	}
1036	OUTPUT:	1070	OUTPUT:
1037	RETVAL	1071	RETVAL
1038		1072
1039	void	1073	void
…		…
1048	struct transfer_args ta;	1082	struct transfer_args ta;
1049		1083
1050	switch (ix)	1084	switch (ix)
1051	{	1085	{
1052	case 0:	1086	case 0:
1053	ta.prev = (struct coro )INT2PTR (coro_stack , SvIV (ST (0)));	1087	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
1054	ta.next = 0;	1088	ta.next = 0;
1055	ta.flags = TRANSFER_SET_STACKLEVEL;	1089	ta.flags = TRANSFER_SET_STACKLEVEL;
1056	break;	1090	break;
1057		1091
1058	case 1:	1092	case 1:
1059	if (items != 3)	1093	if (items != 3)
1060	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);	1094	croak ("Coro::State::transfer (prev,next,flags) expects three arguments, not %d", items);
1061		1095
1062	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));	1096	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1063	break;	1097	break;
1064		1098
1065	case 2:	1099	case 2:
…		…
1075	SV *yieldstack;	1109	SV *yieldstack;
1076	SV *sv;	1110	SV *sv;
1077	AV *defav = GvAV (PL_defgv);	1111	AV *defav = GvAV (PL_defgv);
1078		1112
1079	yieldstack = *hv_fetch (	1113	yieldstack = *hv_fetch (
1080	(HV *)SvRV (GvSV (coro_current)),	1114	(HV *)SvRV (coro_current),
1081	"yieldstack", sizeof ("yieldstack") - 1,	1115	"yieldstack", sizeof ("yieldstack") - 1,
1082	0	1116	0
1083	);	1117	);
1084		1118
1085	/* set up @_ -- ugly */	1119	/* set up @_ -- ugly */
…		…
1112	++coro_src->refcnt;	1146	++coro_src->refcnt;
1113	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;	1147	sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags \|= MGf_DUP;
1114	}	1148	}
1115		1149
1116	void	1150	void
1117	_nonlocal_goto (IV nextop)
1118	CODE:
1119	/* uuh, somebody will kill me again for this */
1120	PL_op->op_next = INT2PTR (OP *, nextop);
1121
1122	void
1123	_exit (code)	1151	_exit (code)
1124	int code	1152	int code
1125	PROTOTYPE: $	1153	PROTOTYPE: $
1126	CODE:	1154	CODE:
1127	_exit (code);	1155	_exit (code);
		1156
		1157	int
		1158	cctx_count ()
		1159	CODE:
		1160	RETVAL = cctx_count;
		1161	OUTPUT:
		1162	RETVAL
		1163
		1164	int
		1165	cctx_idle ()
		1166	CODE:
		1167	RETVAL = cctx_idle;
		1168	OUTPUT:
		1169	RETVAL
1128		1170
1129	MODULE = Coro::State PACKAGE = Coro	1171	MODULE = Coro::State PACKAGE = Coro
1130		1172
1131	BOOT:	1173	BOOT:
1132	{	1174	{
…		…
1139	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));	1181	newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1140	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));	1182	newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1141	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));	1183	newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1142	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));	1184	newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1143		1185
1144	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);	1186	coro_current = get_sv ("Coro::current", FALSE);
1145	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);	1187	SvREADONLY_on (coro_current);
1146		1188
1147	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )	1189	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1148	coro_ready[i] = newAV ();	1190	coro_ready[i] = newAV ();
1149		1191
1150	{	1192	{
1151	SV *sv = perl_get_sv("Coro::API", 1);	1193	SV *sv = perl_get_sv("Coro::API", 1);
1152		1194
1153	coroapi.schedule = api_schedule;	1195	coroapi.schedule = api_schedule;
1154	coroapi.cede = api_cede;	1196	coroapi.cede = api_cede;
1155	coroapi.ready = api_ready;	1197	coroapi.ready = api_ready;
		1198	coroapi.is_ready = api_is_ready;
1156	coroapi.nready = &coro_nready;	1199	coroapi.nready = &coro_nready;
1157	coroapi.current = coro_current;	1200	coroapi.current = coro_current;
1158		1201
1159	GCoroAPI = &coroapi;	1202	GCoroAPI = &coroapi;
1160	sv_setiv (sv, (IV)&coroapi);	1203	sv_setiv (sv, (IV)&coroapi);
…		…
1180		1223
1181	coro->prio = newprio;	1224	coro->prio = newprio;
1182	}	1225	}
1183	}	1226	}
1184		1227
1185	void	1228	SV *
1186	ready (SV *self)	1229	ready (SV *self)
1187	PROTOTYPE: $	1230	PROTOTYPE: $
1188	CODE:	1231	CODE:
1189	api_ready (self);	1232	RETVAL = boolSV (api_ready (self));
		1233	OUTPUT:
		1234	RETVAL
		1235
		1236	SV *
		1237	is_ready (SV *self)
		1238	PROTOTYPE: $
		1239	CODE:
		1240	RETVAL = boolSV (api_is_ready (self));
		1241	OUTPUT:
		1242	RETVAL
1190		1243
1191	int	1244	int
1192	nready (...)	1245	nready (...)
1193	PROTOTYPE:	1246	PROTOTYPE:
1194	CODE:	1247	CODE:
1195	RETVAL = coro_nready;	1248	RETVAL = coro_nready;
1196	OUTPUT:	1249	OUTPUT:
1197	RETVAL	1250	RETVAL
1198		1251
		1252	void
		1253	_set_current (SV *current)
		1254	PROTOTYPE: $
		1255	CODE:
		1256	SvREFCNT_dec (SvRV (coro_current));
		1257	SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
		1258
1199	MODULE = Coro::State PACKAGE = Coro::AIO	1259	MODULE = Coro::State PACKAGE = Coro::AIO
1200		1260
1201	SV *	1261	SV *
1202	_get_state ()	1262	_get_state ()
1203	CODE:	1263	CODE:

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.99 by root, Sun Nov 26 23:53:20 2006 UTC vs. Revision 1.117 by root, Fri Dec 1 19:41:06 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.99 by root, Sun Nov 26 23:53:20 2006 UTC vs.
Revision 1.117 by root, Fri Dec 1 19:41:06 2006 UTC