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

Comparing Coro/Coro/State.xs (file contents):
Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs.
Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC

…		…
1	#define PERL_NO_GET_CONTEXT
2
3	#include "libcoro/coro.c"	1	#include "libcoro/coro.c"
4		2
5	#include "EXTERN.h"	3	#include "EXTERN.h"
6	#include "perl.h"	4	#include "perl.h"
7	#include "XSUB.h"	5	#include "XSUB.h"
8		6
9	#include "patchlevel.h"	7	#include "patchlevel.h"
10		8
11	#if PERL_VERSION < 6	9	#if USE_VALGRIND
		10	# include <valgrind/valgrind.h>
		11	#endif
		12
		13	#define PERL_VERSION_ATLEAST(a,b,c) \
		14	(PERL_REVISION > (a) \
		15	\|\| (PERL_REVISION == (a) \
		16	&& (PERL_VERSION > (b) \
		17	\|\| (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
		18
		19	#if !PERL_VERSION_ATLEAST (5,6,0)
12	# ifndef PL_ppaddr	20	# ifndef PL_ppaddr
13	# define PL_ppaddr ppaddr	21	# define PL_ppaddr ppaddr
14	# endif	22	# endif
15	# ifndef call_sv	23	# ifndef call_sv
16	# define call_sv perl_call_sv	24	# define call_sv perl_call_sv
27	# ifndef IS_PADCONST	35	# ifndef IS_PADCONST
28	# define IS_PADCONST(v) 0	36	# define IS_PADCONST(v) 0
29	# endif	37	# endif
30	#endif	38	#endif
31		39
		40	#include <stdio.h>
32	#include <errno.h>	41	#include <errno.h>
33		42
34	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64	43	#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
35	# undef STACKGUARD	44	# undef STACKGUARD
36	#endif	45	#endif
…		…
53	# ifndef PAGESIZE	62	# ifndef PAGESIZE
54	# define PAGESIZE pagesize	63	# define PAGESIZE pagesize
55	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)	64	# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
56	static long pagesize;	65	static long pagesize;
57	# else	66	# else
58	# define BOOT_PAGESIZE	67	# define BOOT_PAGESIZE (void)0
59	# endif	68	# endif
		69	#else
		70	# define PAGESIZE 0
		71	# define BOOT_PAGESIZE (void)0
60	#endif	72	#endif
61
62	#define SUB_INIT "Coro::State::initialize"
63		73
64	/* The next macro should declare a variable stacklevel that contains and approximation	74	/* The next macro should declare a variable stacklevel that contains and approximation
65	* to the current C stack pointer. Its property is that it changes with each call	75	* to the current C stack pointer. Its property is that it changes with each call
66	* and should be unique. */	76	* and should be unique. */
		77	#define dSTACKLEVEL int stacklevel
67	#define dSTACKLEVEL void *stacklevel = &stacklevel	78	#define STACKLEVEL ((void *)&stacklevel)
68		79
69	#define IN_DESTRUCT (PL_main_cv == Nullcv)	80	#define IN_DESTRUCT (PL_main_cv == Nullcv)
70		81
71	#define labs(l) ((l) >= 0 ? (l) : -(l))	82	#if __GNUC__ >= 3
		83	# define attribute(x) __attribute__(x)
		84	#else
		85	# define attribute(x)
		86	#endif
		87
		88	#define NOINLINE attribute ((noinline))
72		89
73	#include "CoroAPI.h"	90	#include "CoroAPI.h"
		91
		92	#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
74		93
75	#ifdef USE_ITHREADS	94	#ifdef USE_ITHREADS
76	static perl_mutex coro_mutex;	95	static perl_mutex coro_mutex;
77	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)	96	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
78	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)	97	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
…		…
84	static struct CoroAPI coroapi;	103	static struct CoroAPI coroapi;
85	static AV main_mainstack; / used to differentiate between $main and others */	104	static AV main_mainstack; / used to differentiate between $main and others */
86	static HV coro_state_stash, coro_stash;	105	static HV coro_state_stash, coro_stash;
87	static SV coro_mortal; / will be freed after next transfer */	106	static SV coro_mortal; / will be freed after next transfer */
88		107
89	/* this is actually not just the c stack but also c registers etc... */	108	static struct coro_cctx *cctx_first;
		109	static int cctx_count, cctx_idle;
		110
		111	/* this is a structure representing a c-level coroutine */
90	typedef struct coro_stack {	112	typedef struct coro_cctx {
91	struct coro_stack *next;	113	struct coro_cctx *next;
92		114
93	void *idle_sp;	115	/* the stack */
94	void *sptr;	116	void *sptr;
95	long ssize; /* positive == mmap, otherwise malloc */	117	long ssize; /* positive == mmap, otherwise malloc */
96		118
97	/* cpu state */	119	/* cpu state */
		120	void idle_sp; / sp of top-level transfer/schedule/cede call */
		121	JMPENV *top_env;
98	coro_context cctx;	122	coro_context cctx;
99	} coro_stack;
100		123
101	static coro_stack *main_stack;	124	#if USE_VALGRIND
		125	int valgrind_id;
		126	#endif
		127	} coro_cctx;
102		128
		129	/* this is a structure representing a perl-level coroutine */
103	struct coro {	130	struct coro {
		131	/* the c coroutine allocated to this perl coroutine, if any */
		132	coro_cctx *cctx;
		133
		134	/* data associated with this coroutine (initial args) */
		135	AV *args;
		136	int refcnt;
		137
104	/* optionally saved, might be zero */	138	/* optionally saved, might be zero */
105	AV *defav;	139	AV *defav;
106	SV *defsv;	140	SV *defsv;
107	SV *errsv;	141	SV *errsv;
108		142
109	/* saved global state not related to stacks */	143	/* saved global state not related to stacks */
110	U8 dowarn;	144	U8 dowarn;
111	I32 in_eval;	145	I32 in_eval;
112
113	/* the c stack, if any */
114	coro_stack *stack;
115		146
116	/* the stacks and related info (callchain etc..) */	147	/* the stacks and related info (callchain etc..) */
117	PERL_SI *curstackinfo;	148	PERL_SI *curstackinfo;
118	AV *curstack;	149	AV *curstack;
119	AV *mainstack;	150	AV *mainstack;
…		…
140	OP **retstack;	171	OP **retstack;
141	I32 retstack_ix;	172	I32 retstack_ix;
142	I32 retstack_max;	173	I32 retstack_max;
143	PMOP *curpm;	174	PMOP *curpm;
144	COP *curcop;	175	COP *curcop;
145	JMPENV *top_env;
146		176
147	/* coro process data */	177	/* coro process data */
148	int prio;	178	int prio;
149
150	/* data associated with this coroutine (initial args) */
151	AV *args;
152	int refcnt;
153	};	179	};
154		180
155	typedef struct coro *Coro__State;	181	typedef struct coro *Coro__State;
156	typedef struct coro *Coro__State_or_hashref;	182	typedef struct coro *Coro__State_or_hashref;
157		183
158	static AV *	184	static AV *
159	coro_clone_padlist (pTHX_ CV *cv)	185	coro_clone_padlist (CV *cv)
160	{	186	{
161	AV *padlist = CvPADLIST (cv);	187	AV *padlist = CvPADLIST (cv);
162	AV newpadlist, newpad;	188	AV newpadlist, newpad;
163		189
164	newpadlist = newAV ();	190	newpadlist = newAV ();
165	AvREAL_off (newpadlist);	191	AvREAL_off (newpadlist);
166	#if PERL_VERSION < 9	192	#if PERL_VERSION_ATLEAST (5,9,0)
		193	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
		194	#else
167	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);	195	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
168	#else
169	Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
170	#endif	196	#endif
171	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];	197	newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
172	--AvFILLp (padlist);	198	--AvFILLp (padlist);
173		199
174	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));	200	av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE)));
…		…
176		202
177	return newpadlist;	203	return newpadlist;
178	}	204	}
179		205
180	static void	206	static void
181	free_padlist (pTHX_ AV *padlist)	207	free_padlist (AV *padlist)
182	{	208	{
183	/* may be during global destruction */	209	/* may be during global destruction */
184	if (SvREFCNT (padlist))	210	if (SvREFCNT (padlist))
185	{	211	{
186	I32 i = AvFILLp (padlist);	212	I32 i = AvFILLp (padlist);
…		…
207	AV *padlist;	233	AV *padlist;
208	AV av = (AV )mg->mg_obj;	234	AV av = (AV )mg->mg_obj;
209		235
210	/* casting is fun. */	236	/* casting is fun. */
211	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))	237	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
212	free_padlist (aTHX_ padlist);	238	free_padlist (padlist);
213		239
214	SvREFCNT_dec (av);	240	SvREFCNT_dec (av);
215		241
216	return 0;	242	return 0;
217	}	243	}
…		…
220		246
221	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};	247	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
222		248
223	/* the next two functions merely cache the padlists */	249	/* the next two functions merely cache the padlists */
224	static void	250	static void
225	get_padlist (pTHX_ CV *cv)	251	get_padlist (CV *cv)
226	{	252	{
227	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	253	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
228		254
229	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)	255	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
230	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);	256	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
231	else	257	else
232	{	258	{
233	#if 0	259	#if 0
234	/* this should work - but it doesn't :( */	260	/* this is probably cleaner, but also slower? */
235	CV *cp = Perl_cv_clone (aTHX_ cv);	261	CV *cp = Perl_cv_clone (cv);
236	CvPADLIST (cv) = CvPADLIST (cp);	262	CvPADLIST (cv) = CvPADLIST (cp);
237	CvPADLIST (cp) = 0;	263	CvPADLIST (cp) = 0;
238	SvREFCNT_dec (cp);	264	SvREFCNT_dec (cp);
239	#else	265	#else
240	CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);	266	CvPADLIST (cv) = coro_clone_padlist (cv);
241	#endif	267	#endif
242	}	268	}
243	}	269	}
244		270
245	static void	271	static void
246	put_padlist (pTHX_ CV *cv)	272	put_padlist (CV *cv)
247	{	273	{
248	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);	274	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
249		275
250	if (!mg)	276	if (!mg)
251	{	277	{
…		…
259	}	285	}
260		286
261	#define SB do {	287	#define SB do {
262	#define SE } while (0)	288	#define SE } while (0)
263		289
264	#define LOAD(state) load_state(aTHX_ (state));	290	#define LOAD(state) load_state((state));
265	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));	291	#define SAVE(state,flags) save_state((state),(flags));
266		292
267	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE	293	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
268		294
269	static void	295	static void
270	load_state(pTHX_ Coro__State c)	296	load_state(Coro__State c)
271	{	297	{
272	PL_dowarn = c->dowarn;	298	PL_dowarn = c->dowarn;
273	PL_in_eval = c->in_eval;	299	PL_in_eval = c->in_eval;
274		300
275	PL_curstackinfo = c->curstackinfo;	301	PL_curstackinfo = c->curstackinfo;
…		…
293	PL_scopestack_ix = c->scopestack_ix;	319	PL_scopestack_ix = c->scopestack_ix;
294	PL_scopestack_max = c->scopestack_max;	320	PL_scopestack_max = c->scopestack_max;
295	PL_savestack = c->savestack;	321	PL_savestack = c->savestack;
296	PL_savestack_ix = c->savestack_ix;	322	PL_savestack_ix = c->savestack_ix;
297	PL_savestack_max = c->savestack_max;	323	PL_savestack_max = c->savestack_max;
298	#if PERL_VERSION < 9	324	#if !PERL_VERSION_ATLEAST (5,9,0)
299	PL_retstack = c->retstack;	325	PL_retstack = c->retstack;
300	PL_retstack_ix = c->retstack_ix;	326	PL_retstack_ix = c->retstack_ix;
301	PL_retstack_max = c->retstack_max;	327	PL_retstack_max = c->retstack_max;
302	#endif	328	#endif
303	PL_curpm = c->curpm;	329	PL_curpm = c->curpm;
304	PL_curcop = c->curcop;	330	PL_curcop = c->curcop;
305	PL_top_env = c->top_env;
306		331
307	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	332	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
308	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	333	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
309	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	334	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
310		335
…		…
317	{	342	{
318	AV padlist = (AV )POPs;	343	AV padlist = (AV )POPs;
319		344
320	if (padlist)	345	if (padlist)
321	{	346	{
322	put_padlist (aTHX_ cv); /* mark this padlist as available */	347	put_padlist (cv); /* mark this padlist as available */
323	CvPADLIST(cv) = padlist;	348	CvPADLIST(cv) = padlist;
324	}	349	}
325		350
326	++CvDEPTH(cv);	351	++CvDEPTH(cv);
327	}	352	}
…		…
329	PUTBACK;	354	PUTBACK;
330	}	355	}
331	}	356	}
332		357
333	static void	358	static void
334	save_state(pTHX_ Coro__State c, int flags)	359	save_state(Coro__State c, int flags)
335	{	360	{
336	{	361	{
337	dSP;	362	dSP;
338	I32 cxix = cxstack_ix;	363	I32 cxix = cxstack_ix;
339	PERL_CONTEXT *ccstk = cxstack;	364	PERL_CONTEXT *ccstk = cxstack;
…		…
367	}	392	}
368		393
369	PUSHs ((SV *)CvPADLIST(cv));	394	PUSHs ((SV *)CvPADLIST(cv));
370	PUSHs ((SV *)cv);	395	PUSHs ((SV *)cv);
371		396
372	get_padlist (aTHX_ cv);	397	get_padlist (cv);
373	}	398	}
374	}	399	}
375	#ifdef CXt_FORMAT	400	#ifdef CXt_FORMAT
376	else if (CxTYPE(cx) == CXt_FORMAT)	401	else if (CxTYPE(cx) == CXt_FORMAT)
377	{	402	{
…		…
421	c->scopestack_ix = PL_scopestack_ix;	446	c->scopestack_ix = PL_scopestack_ix;
422	c->scopestack_max = PL_scopestack_max;	447	c->scopestack_max = PL_scopestack_max;
423	c->savestack = PL_savestack;	448	c->savestack = PL_savestack;
424	c->savestack_ix = PL_savestack_ix;	449	c->savestack_ix = PL_savestack_ix;
425	c->savestack_max = PL_savestack_max;	450	c->savestack_max = PL_savestack_max;
426	#if PERL_VERSION < 9	451	#if !PERL_VERSION_ATLEAST (5,9,0)
427	c->retstack = PL_retstack;	452	c->retstack = PL_retstack;
428	c->retstack_ix = PL_retstack_ix;	453	c->retstack_ix = PL_retstack_ix;
429	c->retstack_max = PL_retstack_max;	454	c->retstack_max = PL_retstack_max;
430	#endif	455	#endif
431	c->curpm = PL_curpm;	456	c->curpm = PL_curpm;
432	c->curcop = PL_curcop;	457	c->curcop = PL_curcop;
433	c->top_env = PL_top_env;
434	}	458	}
435		459
436	/*	460	/*
437	* allocate various perl stacks. This is an exact copy	461	* allocate various perl stacks. This is an exact copy
438	* of perl.c:init_stacks, except that it uses less memory	462	* of perl.c:init_stacks, except that it uses less memory
439	* on the (sometimes correct) assumption that coroutines do	463	* on the (sometimes correct) assumption that coroutines do
440	* not usually need a lot of stackspace.	464	* not usually need a lot of stackspace.
441	*/	465	*/
442	static void	466	static void
443	coro_init_stacks (pTHX)	467	coro_init_stacks ()
444	{	468	{
445	LOCK;
446
447	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	469	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
448	PL_curstackinfo->si_type = PERLSI_MAIN;	470	PL_curstackinfo->si_type = PERLSI_MAIN;
449	PL_curstack = PL_curstackinfo->si_stack;	471	PL_curstack = PL_curstackinfo->si_stack;
450	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	472	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
451		473
…		…
472		494
473	New(54,PL_savestack,96,ANY);	495	New(54,PL_savestack,96,ANY);
474	PL_savestack_ix = 0;	496	PL_savestack_ix = 0;
475	PL_savestack_max = 96;	497	PL_savestack_max = 96;
476		498
477	#if PERL_VERSION < 9	499	#if !PERL_VERSION_ATLEAST (5,9,0)
478	New(54,PL_retstack,8,OP*);	500	New(54,PL_retstack,8,OP*);
479	PL_retstack_ix = 0;	501	PL_retstack_ix = 0;
480	PL_retstack_max = 8;	502	PL_retstack_max = 8;
481	#endif	503	#endif
482
483	UNLOCK;
484	}	504	}
485		505
486	/*	506	/*
487	* destroy the stacks, the callchain etc...	507	* destroy the stacks, the callchain etc...
488	*/	508	*/
489	static void	509	static void
490	destroy_stacks(pTHX)	510	coro_destroy_stacks ()
491	{	511	{
492	if (!IN_DESTRUCT)	512	if (!IN_DESTRUCT)
493	{	513	{
494	/* is this ugly, I ask? */	514	/* is this ugly, I ask? */
495	LEAVE_SCOPE (0);	515	LEAVE_SCOPE (0);
…		…
526		546
527	Safefree (PL_tmps_stack);	547	Safefree (PL_tmps_stack);
528	Safefree (PL_markstack);	548	Safefree (PL_markstack);
529	Safefree (PL_scopestack);	549	Safefree (PL_scopestack);
530	Safefree (PL_savestack);	550	Safefree (PL_savestack);
531	#if PERL_VERSION < 9	551	#if !PERL_VERSION_ATLEAST (5,9,0)
532	Safefree (PL_retstack);	552	Safefree (PL_retstack);
533	#endif	553	#endif
534	}	554	}
535		555
536	static void	556	static void
537	setup_coro (struct coro *coro)	557	setup_coro (struct coro *coro)
538	{	558	{
539	/*	559	/*
540	* emulate part of the perl startup here.	560	* emulate part of the perl startup here.
541	*/	561	*/
542	dTHX;
543	dSP;
544	UNOP myop;
545	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
546		562
547	coro_init_stacks (aTHX);	563	coro_init_stacks ();
		564
548	/PL_curcop = 0;/	565	PL_curcop = 0;
549	/PL_in_eval = PL_in_eval;/ /* inherit */	566	PL_in_eval = 0;
		567	PL_curpm = 0;
		568
		569	{
		570	dSP;
		571	LOGOP myop;
		572
		573	/* I have no idea why this is needed, but it is */
		574	PUSHMARK (SP);
		575
550	SvREFCNT_dec (GvAV (PL_defgv));	576	SvREFCNT_dec (GvAV (PL_defgv));
551	GvAV (PL_defgv) = coro->args; coro->args = 0;	577	GvAV (PL_defgv) = coro->args; coro->args = 0;
552		578
553	SPAGAIN;
554
555	Zero (&myop, 1, UNOP);	579	Zero (&myop, 1, LOGOP);
556	myop.op_next = Nullop;	580	myop.op_next = Nullop;
557	myop.op_flags = OPf_WANT_VOID;	581	myop.op_flags = OPf_WANT_VOID;
558		582
559	PL_op = (OP *)&myop;	583	PL_op = (OP *)&myop;
560		584
561	PUSHMARK(SP);	585	PUSHMARK (SP);
562	XPUSHs (sub_init);	586	XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
563	PUTBACK;	587	PUTBACK;
564	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);	588	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
565	SPAGAIN;	589	SPAGAIN;
566		590
567	ENTER; /* necessary e.g. for dounwind */	591	ENTER; /* necessary e.g. for dounwind */
		592	}
568	}	593	}
569		594
570	static void	595	static void
571	transfer_tail ()	596	free_coro_mortal ()
572	{	597	{
573	if (coro_mortal)	598	if (coro_mortal)
574	{	599	{
575	SvREFCNT_dec (coro_mortal);	600	SvREFCNT_dec (coro_mortal);
576	coro_mortal = 0;	601	coro_mortal = 0;
577	}	602	}
		603	}
578		604
		605	static void NOINLINE
		606	prepare_cctx (coro_cctx *cctx)
		607	{
		608	dSP;
		609	LOGOP myop;
		610
		611	Zero (&myop, 1, LOGOP);
		612	myop.op_next = PL_op;
		613	myop.op_flags = OPf_WANT_VOID;
		614
		615	sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
		616
		617	PUSHMARK (SP);
		618	XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
		619	PUTBACK;
		620	PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX);
		621	SPAGAIN;
		622	}
		623
		624	static void
		625	coro_run (void *arg)
		626	{
		627	/* coro_run is the alternative epilogue of transfer() */
579	UNLOCK;	628	UNLOCK;
580	}
581		629
582	static void
583	coro_run (void *arg)
584	{
585	/*	630	/*
586	* this is a _very_ stripped down perl interpreter ;)	631	* this is a _very_ stripped down perl interpreter ;)
587	*/	632	*/
588	dTHX;
589
590	transfer_tail ();
591
592	PL_top_env = &PL_start_env;	633	PL_top_env = &PL_start_env;
593	PL_restartop = PL_op;	634
		635	/* inject call to cctx_init */
		636	prepare_cctx ((coro_cctx *)arg);
		637
594	/* somebody will hit me for both perl_run and PL_restart_top */	638	/* somebody will hit me for both perl_run and PL_restartop */
595	perl_run (aTHX_ PERL_GET_CONTEXT);	639	perl_run (PL_curinterp);
596		640
		641	fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
597	abort ();	642	abort ();
598	}	643	}
599		644
600	static coro_stack *	645	static coro_cctx *
601	stack_new ()	646	cctx_new ()
602	{	647	{
603	coro_stack *stack;	648	coro_cctx *cctx;
604		649
		650	++cctx_count;
		651
605	New (0, stack, 1, coro_stack);	652	New (0, cctx, 1, coro_cctx);
606		653
607	#if HAVE_MMAP	654	#if HAVE_MMAP
608		655
609	stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */	656	cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
		657	/* mmap suppsedly does allocate-on-write for us */
610	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);	658	cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
611		659
612	if (stack->sptr == (void *)-1)	660	if (cctx->sptr == (void *)-1)
613	{	661	{
614	fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n");	662	perror ("FATAL: unable to mmap stack for coroutine");
615	_exit (EXIT_FAILURE);	663	_exit (EXIT_FAILURE);
616	}	664	}
617		665
		666	# if STACKGUARD
618	mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE);	667	mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE);
		668	# endif
619		669
620	#else	670	#else
621		671
622	stack->ssize = STACKSIZE * (long)sizeof (long);	672	cctx->ssize = STACKSIZE * (long)sizeof (long);
623	New (0, stack->sptr, STACKSIZE, long);	673	New (0, cctx->sptr, STACKSIZE, long);
624		674
625	if (!stack->sptr)	675	if (!cctx->sptr)
626	{	676	{
627	fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n");	677	perror ("FATAL: unable to malloc stack for coroutine");
628	_exit (EXIT_FAILURE);	678	_exit (EXIT_FAILURE);
629	}	679	}
630		680
631	#endif	681	#endif
632		682
		683	#if USE_VALGRIND
		684	cctx->valgrind_id = VALGRIND_STACK_REGISTER (
		685	STACKGUARD * PAGESIZE + (char *)cctx->sptr,
		686	cctx->ssize + (char *)cctx->sptr
		687	);
		688	#endif
		689
633	coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize);	690	coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize);
634		691
635	return stack;	692	return cctx;
636	}	693	}
637		694
638	static void	695	static void
639	stack_free (coro_stack *stack)	696	cctx_free (coro_cctx *cctx)
640	{	697	{
641	if (!stack \|\| stack == main_stack)	698	if (!cctx)
642	return;	699	return;
643		700
		701	--cctx_count;
		702
		703	#if USE_VALGRIND
		704	VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
		705	#endif
		706
644	#if HAVE_MMAP	707	#if HAVE_MMAP
645	munmap (stack->sptr, stack->ssize);	708	munmap (cctx->sptr, cctx->ssize);
646	#else	709	#else
647	Safefree (stack->sptr);	710	Safefree (cctx->sptr);
648	#endif	711	#endif
649		712
650	Safefree (stack);	713	Safefree (cctx);
651	}	714	}
652		715
653	static coro_stack *stack_first;
654
655	static coro_stack *	716	static coro_cctx *
656	stack_get ()	717	cctx_get ()
657	{	718	{
658	coro_stack *stack;	719	coro_cctx *cctx;
659		720
660	if (stack_first)	721	if (cctx_first)
661	{	722	{
662	stack = stack_first;	723	--cctx_idle;
		724	cctx = cctx_first;
663	stack_first = stack->next;	725	cctx_first = cctx->next;
664	}	726	}
665	else	727	else
666	{	728	{
667	stack = stack_new ();	729	cctx = cctx_new ();
668	PL_op = PL_op->op_next;	730	PL_op = PL_op->op_next;
669	}	731	}
670		732
671	return stack;	733	return cctx;
672	}	734	}
673		735
674	static void	736	static void
675	stack_put (coro_stack *stack)	737	cctx_put (coro_cctx *cctx)
676	{	738	{
677	stack->next = stack_first;	739	++cctx_idle;
678	stack_first = stack;	740	cctx->next = cctx_first;
		741	cctx_first = cctx;
679	}	742	}
680		743
681	/* never call directly, always through the coro_state_transfer global variable */	744	/* never call directly, always through the coro_state_transfer global variable */
682	static void	745	static void NOINLINE
683	transfer_impl (pTHX_ struct coro prev, struct coro next, int flags)	746	transfer (struct coro prev, struct coro next, int flags)
684	{	747	{
685	dSTACKLEVEL;	748	dSTACKLEVEL;
686		749
687	/* sometimes transfer is only called to set idle_sp */	750	/* sometimes transfer is only called to set idle_sp */
688	if (!prev->stack->idle_sp)	751	if (flags == TRANSFER_SET_STACKLEVEL)
689	prev->stack->idle_sp = stacklevel;	752	((coro_cctx *)prev)->idle_sp = STACKLEVEL;
690
691	LOCK;
692
693	if (prev != next)	753	else if (prev != next)
694	{	754	{
695	coro_stack *prev_stack = prev->stack;	755	coro_cctx *prev__cctx;
696		756
697	/* possibly "free" the stack */	757	LOCK;
698	if (0 && prev_stack->idle_sp == stacklevel)
699	{
700	stack_put (prev_stack);
701	prev->stack = 0;
702	}
703		758
704	if (next->mainstack)	759	if (next->mainstack)
705	{	760	{
706	/* coroutine already started */	761	/* coroutine already started */
707	SAVE (prev, flags);	762	SAVE (prev, flags);
…		…
712	/* need to start coroutine */	767	/* need to start coroutine */
713	/* first get rid of the old state */	768	/* first get rid of the old state */
714	SAVE (prev, -1);	769	SAVE (prev, -1);
715	/* setup coroutine call */	770	/* setup coroutine call */
716	setup_coro (next);	771	setup_coro (next);
717	/* need to change stack from main_stack to real one */	772	/* need a stack */
718	next->stack = 0;	773	next->cctx = 0;
719	}	774	}
720		775
		776	if (!prev->cctx)
		777	/* create a new empty context */
		778	Newz (0, prev->cctx, 1, coro_cctx);
		779
		780	prev__cctx = prev->cctx;
		781
		782	/* possibly "free" the cctx */
		783	if (prev__cctx->idle_sp == STACKLEVEL)
		784	{
		785	cctx_put (prev__cctx);
		786	prev->cctx = 0;
		787	}
		788
721	if (!next->stack)	789	if (!next->cctx)
722	next->stack = stack_get ();	790	next->cctx = cctx_get ();
723		791
724	if (prev_stack != next->stack)	792	if (prev__cctx != next->cctx)
		793	{
		794	prev__cctx->top_env = PL_top_env;
		795	PL_top_env = next->cctx->top_env;
725	coro_transfer (&prev_stack->cctx, &next->stack->cctx);	796	coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
		797	}
		798
		799	free_coro_mortal ();
		800
		801	UNLOCK;
726	}	802	}
727
728	transfer_tail ();
729	}	803	}
730		804
731	/* use this function pointer to call the above function */	805	struct transfer_args
732	/* this is done to increase chances of the compiler not inlining the call */	806	{
733	void (coro_state_transfer)(pTHX_ struct coro prev, struct coro *next, int flags) = transfer_impl;	807	struct coro prev, next;
		808	int flags;
		809	};
		810
		811	#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags)
734		812
735	static void	813	static void
736	coro_state_destroy (struct coro *coro)	814	coro_state_destroy (struct coro *coro)
737	{	815	{
738	if (coro->refcnt--)	816	if (coro->refcnt--)
…		…
740		818
741	if (coro->mainstack && coro->mainstack != main_mainstack)	819	if (coro->mainstack && coro->mainstack != main_mainstack)
742	{	820	{
743	struct coro temp;	821	struct coro temp;
744		822
745	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);	823	SAVE ((&temp), TRANSFER_SAVE_ALL);
746	LOAD (aTHX_ coro);	824	LOAD (coro);
747		825
748	destroy_stacks (aTHX);	826	coro_destroy_stacks ();
749		827
750	LOAD ((&temp)); /* this will get rid of defsv etc.. */	828	LOAD ((&temp)); /* this will get rid of defsv etc.. */
751		829
752	coro->mainstack = 0;	830	coro->mainstack = 0;
753	}	831	}
754		832
755	stack_free (coro->stack);	833	cctx_free (coro->cctx);
756	SvREFCNT_dec (coro->args);	834	SvREFCNT_dec (coro->args);
757	Safefree (coro);	835	Safefree (coro);
758	}	836	}
759		837
760	static int	838	static int
761	coro_state_clear (SV sv, MAGIC mg)	839	coro_state_clear (pTHX_ SV sv, MAGIC mg)
762	{	840	{
763	struct coro coro = (struct coro )mg->mg_ptr;	841	struct coro coro = (struct coro )mg->mg_ptr;
764	mg->mg_ptr = 0;	842	mg->mg_ptr = 0;
765		843
766	coro_state_destroy (coro);	844	coro_state_destroy (coro);
767		845
768	return 0;	846	return 0;
769	}	847	}
770		848
771	static int	849	static int
772	coro_state_dup (MAGIC mg, CLONE_PARAMS params)	850	coro_state_dup (pTHX_ MAGIC mg, CLONE_PARAMS params)
773	{	851	{
774	struct coro coro = (struct coro )mg->mg_ptr;	852	struct coro coro = (struct coro )mg->mg_ptr;
775		853
776	++coro->refcnt;	854	++coro->refcnt;
777		855
778	return 0;	856	return 0;
779	}	857	}
780		858
781	static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 };	859	static MGVTBL coro_state_vtbl = {
		860	0, 0, 0, 0,
		861	coro_state_clear,
		862	0,
		863	#ifdef MGf_DUP
		864	coro_state_dup,
		865	#else
		866	# define MGf_DUP 0
		867	#endif
		868	};
782		869
783	static struct coro *	870	static struct coro *
784	SvSTATE (SV *coro)	871	SvSTATE (SV *coro)
785	{	872	{
786	HV *stash;	873	HV *stash;
…		…
801	assert (mg->mg_type == PERL_MAGIC_ext);	888	assert (mg->mg_type == PERL_MAGIC_ext);
802	return (struct coro *)mg->mg_ptr;	889	return (struct coro *)mg->mg_ptr;
803	}	890	}
804		891
805	static void	892	static void
		893	prepare_transfer (struct transfer_args ta, SV prev, SV *next, int flags)
		894	{
		895	ta->prev = SvSTATE (prev);
		896	ta->next = SvSTATE (next);
		897	ta->flags = flags;
		898	}
		899
		900	static void
806	api_transfer (pTHX_ SV prev, SV next, int flags)	901	api_transfer (SV prev, SV next, int flags)
807	{	902	{
808	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);	903	dTHX;
		904	struct transfer_args ta;
		905
		906	prepare_transfer (&ta, prev, next, flags);
		907	TRANSFER (ta);
809	}	908	}
810		909
811	/ Coro ******************************************************************/	910	/ Coro ******************************************************************/
812		911
813	#define PRIO_MAX 3	912	#define PRIO_MAX 3
…		…
821	static GV coro_current, coro_idle;	920	static GV coro_current, coro_idle;
822	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];	921	static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
823	static int coro_nready;	922	static int coro_nready;
824		923
825	static void	924	static void
826	coro_enq (pTHX_ SV *sv)	925	coro_enq (SV *sv)
827	{	926	{
828	int prio;	927	int prio;
829		928
830	if (SvTYPE (sv) != SVt_PVHV)	929	if (SvTYPE (sv) != SVt_PVHV)
831	croak ("Coro::ready tried to enqueue something that is not a coroutine");	930	croak ("Coro::ready tried to enqueue something that is not a coroutine");
…		…
835	av_push (coro_ready [prio - PRIO_MIN], sv);	934	av_push (coro_ready [prio - PRIO_MIN], sv);
836	coro_nready++;	935	coro_nready++;
837	}	936	}
838		937
839	static SV *	938	static SV *
840	coro_deq (pTHX_ int min_prio)	939	coro_deq (int min_prio)
841	{	940	{
842	int prio = PRIO_MAX - PRIO_MIN;	941	int prio = PRIO_MAX - PRIO_MIN;
843		942
844	min_prio -= PRIO_MIN;	943	min_prio -= PRIO_MIN;
845	if (min_prio < 0)	944	if (min_prio < 0)
…		…
862		961
863	if (SvROK (coro))	962	if (SvROK (coro))
864	coro = SvRV (coro);	963	coro = SvRV (coro);
865		964
866	LOCK;	965	LOCK;
867	coro_enq (aTHX_ SvREFCNT_inc (coro));	966	coro_enq (SvREFCNT_inc (coro));
868	UNLOCK;	967	UNLOCK;
869	}	968	}
870		969
871	static void	970	static void
872	api_schedule (void)	971	prepare_schedule (struct transfer_args *ta)
873	{	972	{
874	dTHX;
875
876	SV prev, next;	973	SV current, prev, *next;
		974
877	SV *current = GvSV (coro_current);	975	current = GvSV (coro_current);
878		976
879	for (;;)	977	for (;;)
880	{	978	{
881	LOCK;	979	LOCK;
882
883	next = coro_deq (aTHX_ PRIO_MIN);	980	next = coro_deq (PRIO_MIN);
		981	UNLOCK;
884		982
885	if (next)	983	if (next)
886	break;	984	break;
887
888	UNLOCK;
889		985
890	{	986	{
891	dSP;	987	dSP;
892		988
893	ENTER;	989	ENTER;
…		…
904		1000
905	prev = SvRV (current);	1001	prev = SvRV (current);
906	SvRV (current) = next;	1002	SvRV (current) = next;
907		1003
908	/* free this only after the transfer */	1004	/* free this only after the transfer */
		1005	LOCK;
		1006	free_coro_mortal ();
		1007	UNLOCK;
909	coro_mortal = prev;	1008	coro_mortal = prev;
910		1009
		1010	ta->prev = SvSTATE (prev);
		1011	ta->next = SvSTATE (next);
		1012	ta->flags = TRANSFER_SAVE_ALL;
		1013	}
		1014
		1015	static void
		1016	prepare_cede (struct transfer_args *ta)
		1017	{
		1018	LOCK;
		1019	coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
911	UNLOCK;	1020	UNLOCK;
912		1021
913	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL);	1022	prepare_schedule (ta);
914	}	1023	}
915		1024
916	static int coro_cede_self;	1025	static void
		1026	api_schedule (void)
		1027	{
		1028	dTHX;
		1029	struct transfer_args ta;
		1030
		1031	prepare_schedule (&ta);
		1032	TRANSFER (ta);
		1033	}
917		1034
918	static void	1035	static void
919	api_cede (void)	1036	api_cede (void)
920	{	1037	{
921	dTHX;	1038	dTHX;
922	SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current)));	1039	struct transfer_args ta;
923		1040
924	LOCK;	1041	prepare_cede (&ta);
925		1042	TRANSFER (ta);
926	if (coro_cede_self)
927	{
928	AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN];
929	av_unshift (runqueue, 1);
930	av_store (runqueue, 0, current);
931	coro_nready++;
932	coro_cede_self = 0;
933	}
934	else
935	coro_enq (aTHX_ current);
936
937	UNLOCK;
938
939	api_schedule ();
940	}	1043	}
941		1044
942	MODULE = Coro::State PACKAGE = Coro::State	1045	MODULE = Coro::State PACKAGE = Coro::State
943		1046
944	PROTOTYPES: DISABLE	1047	PROTOTYPES: DISABLE
…		…
959	main_mainstack = PL_mainstack;	1062	main_mainstack = PL_mainstack;
960		1063
961	coroapi.ver = CORO_API_VERSION;	1064	coroapi.ver = CORO_API_VERSION;
962	coroapi.transfer = api_transfer;	1065	coroapi.transfer = api_transfer;
963		1066
964	Newz (0, main_stack, 1, coro_stack);
965	main_stack->idle_sp = (void *)-1;
966
967	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));	1067	assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
968	}	1068	}
969		1069
970	SV *	1070	SV *
971	new (char *klass, ...)	1071	new (char *klass, ...)
…		…
980		1080
981	hv = newHV ();	1081	hv = newHV ();
982	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;	1082	sv_magicext ((SV )hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char )coro, 0)->mg_flags \|= MGf_DUP;
983	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));	1083	RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
984		1084
985	av_push (coro->args, newSVsv (RETVAL));
986	for (i = 1; i < items; i++)	1085	for (i = 1; i < items; i++)
987	av_push (coro->args, newSVsv (ST (i)));	1086	av_push (coro->args, newSVsv (ST (i)));
988
989	coro->stack = main_stack;
990	/coro->mainstack = 0; //actual work is done inside transfer /
991	/coro->stack = 0;/
992	}	1087	}
993	OUTPUT:	1088	OUTPUT:
994	RETVAL	1089	RETVAL
995		1090
996	void	1091	void
997	transfer (prev, next, flags)	1092	_set_stacklevel (...)
998	SV *prev	1093	ALIAS:
999	SV *next	1094	Coro::State::transfer = 1
1000	int flags	1095	Coro::schedule = 2
		1096	Coro::cede = 3
		1097	Coro::Cont::yield = 4
1001	CODE:	1098	CODE:
1002	PUTBACK;
1003	coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
1004	SPAGAIN;
1005
1006	int
1007	prio (Coro::State coro, int newprio = 0)
1008	ALIAS:
1009	nice = 1
1010	CODE:
1011	{	1099	{
1012	RETVAL = coro->prio;	1100	struct transfer_args ta;
1013		1101
1014	if (items > 1)	1102	switch (ix)
1015	{	1103	{
		1104	case 0:
		1105	ta.prev = (struct coro )INT2PTR (coro_cctx , SvIV (ST (0)));
		1106	ta.next = 0;
		1107	ta.flags = TRANSFER_SET_STACKLEVEL;
		1108	break;
		1109
		1110	case 1:
1016	if (ix)	1111	if (items != 3)
1017	newprio += coro->prio;	1112	croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items);
1018		1113
1019	if (newprio < PRIO_MIN) newprio = PRIO_MIN;	1114	prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2)));
1020	if (newprio > PRIO_MAX) newprio = PRIO_MAX;	1115	break;
1021		1116
1022	coro->prio = newprio;	1117	case 2:
		1118	prepare_schedule (&ta);
		1119	break;
		1120
		1121	case 3:
		1122	prepare_cede (&ta);
		1123	break;
		1124
		1125	case 4:
		1126	{
		1127	SV *yieldstack;
		1128	SV *sv;
		1129	AV *defav = GvAV (PL_defgv);
		1130
		1131	yieldstack = *hv_fetch (
		1132	(HV *)SvRV (GvSV (coro_current)),
		1133	"yieldstack", sizeof ("yieldstack") - 1,
		1134	0
		1135	);
		1136
		1137	/* set up @_ -- ugly */
		1138	av_clear (defav);
		1139	av_fill (defav, items - 1);
		1140	while (items--)
		1141	av_store (defav, items, SvREFCNT_inc (ST(items)));
		1142
		1143	sv = av_pop ((AV *)SvRV (yieldstack));
		1144	ta.prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
		1145	ta.next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
		1146	ta.flags = 0;
		1147	SvREFCNT_dec (sv);
		1148	}
		1149	break;
		1150
1023	}	1151	}
1024	}
1025		1152
1026	void	1153	TRANSFER (ta);
1027	_clear_idle_sp (Coro::State self)	1154	}
1028	CODE:
1029	self->stack->idle_sp = 0;
1030		1155
1031	void	1156	void
1032	_clone_state_from (SV dst, SV src)	1157	_clone_state_from (SV dst, SV src)
1033	CODE:	1158	CODE:
1034	{	1159	{
…		…
1045	int code	1170	int code
1046	PROTOTYPE: $	1171	PROTOTYPE: $
1047	CODE:	1172	CODE:
1048	_exit (code);	1173	_exit (code);
1049		1174
1050	MODULE = Coro::State PACKAGE = Coro::Cont	1175	int
		1176	cctx_count ()
		1177	CODE:
		1178	RETVAL = cctx_count;
		1179	OUTPUT:
		1180	RETVAL
1051		1181
1052	void	1182	int
1053	yield (...)	1183	cctx_idle ()
1054	PROTOTYPE: @	1184	CODE:
1055	CODE:	1185	RETVAL = cctx_idle;
1056	{	1186	OUTPUT:
1057	SV *yieldstack;	1187	RETVAL
1058	SV *sv;
1059	AV *defav = GvAV (PL_defgv);
1060	struct coro prev, next;
1061
1062	yieldstack = *hv_fetch (
1063	(HV *)SvRV (GvSV (coro_current)),
1064	"yieldstack", sizeof ("yieldstack") - 1,
1065	0
1066	);
1067
1068	/* set up @_ -- ugly */
1069	av_clear (defav);
1070	av_fill (defav, items - 1);
1071	while (items--)
1072	av_store (defav, items, SvREFCNT_inc (ST(items)));
1073
1074	sv = av_pop ((AV *)SvRV (yieldstack));
1075	prev = SvSTATE (av_fetch ((AV )SvRV (sv), 0, 0));
1076	next = SvSTATE (av_fetch ((AV )SvRV (sv), 1, 0));
1077	SvREFCNT_dec (sv);
1078
1079	coro_state_transfer (aTHX_ prev, next, 0);
1080	}
1081		1188
1082	MODULE = Coro::State PACKAGE = Coro	1189	MODULE = Coro::State PACKAGE = Coro
1083		1190
1084	BOOT:	1191	BOOT:
1085	{	1192	{
…		…
1111		1218
1112	GCoroAPI = &coroapi;	1219	GCoroAPI = &coroapi;
1113	sv_setiv (sv, (IV)&coroapi);	1220	sv_setiv (sv, (IV)&coroapi);
1114	SvREADONLY_on (sv);	1221	SvREADONLY_on (sv);
1115	}	1222	}
		1223	}
		1224
		1225	int
		1226	prio (Coro::State coro, int newprio = 0)
		1227	ALIAS:
		1228	nice = 1
		1229	CODE:
		1230	{
		1231	RETVAL = coro->prio;
		1232
		1233	if (items > 1)
		1234	{
		1235	if (ix)
		1236	newprio += coro->prio;
		1237
		1238	if (newprio < PRIO_MIN) newprio = PRIO_MIN;
		1239	if (newprio > PRIO_MAX) newprio = PRIO_MAX;
		1240
		1241	coro->prio = newprio;
		1242	}
1116	}	1243	}
1117		1244
1118	void	1245	void
1119	ready (SV *self)	1246	ready (SV *self)
1120	PROTOTYPE: $	1247	PROTOTYPE: $
…		…
1127	CODE:	1254	CODE:
1128	RETVAL = coro_nready;	1255	RETVAL = coro_nready;
1129	OUTPUT:	1256	OUTPUT:
1130	RETVAL	1257	RETVAL
1131		1258
1132	void
1133	schedule (...)
1134	PROTOTYPE:
1135	CODE:
1136	api_schedule ();
1137
1138	void
1139	_set_cede_self ()
1140	CODE:
1141	coro_cede_self = 1;
1142
1143	void
1144	cede (...)
1145	PROTOTYPE:
1146	CODE:
1147	api_cede ();
1148
1149	MODULE = Coro::State PACKAGE = Coro::AIO	1259	MODULE = Coro::State PACKAGE = Coro::AIO
1150		1260
1151	SV *	1261	SV *
1152	_get_state ()	1262	_get_state ()
1153	CODE:	1263	CODE:

Diff Legend

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

Comparing Coro/Coro/State.xs (file contents): Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs. Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC

Diff Legend

Comparing Coro/Coro/State.xs (file contents):
Revision 1.91 by root, Sat Nov 25 01:14:11 2006 UTC vs.
Revision 1.107 by root, Mon Nov 27 02:15:51 2006 UTC