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Comparing Coro/Coro/State.xs (file contents):
Revision 1.35 by root, Mon Sep 24 01:36:20 2001 UTC vs.
Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC

1#define PERL_NO_GET_CONTEXT
2
1#include "EXTERN.h" 3#include "EXTERN.h"
2#include "perl.h" 4#include "perl.h"
3#include "XSUB.h" 5#include "XSUB.h"
4 6
7#include "patchlevel.h"
8
9#if PATCHLEVEL < 6
10# ifndef PL_ppaddr
11# define PL_ppaddr ppaddr
12# endif
13# ifndef call_sv
14# define call_sv perl_call_sv
15# endif
16# ifndef get_sv
17# define get_sv perl_get_sv
18# endif
19# ifndef get_cv
20# define get_cv perl_get_cv
21# endif
22# ifndef IS_PADGV
23# define IS_PADGV(v) 0
24# endif
25# ifndef IS_PADCONST
26# define IS_PADCONST(v) 0
27# endif
28#endif
29
5#include "libcoro/coro.c" 30#include "libcoro/coro.c"
6 31
7#include <signal.h> 32#include <signal.h>
8 33
9#ifdef HAVE_MMAP 34#ifdef HAVE_MMAP
10# include <unistd.h> 35# include <unistd.h>
11# include <sys/mman.h> 36# include <sys/mman.h>
12# ifndef MAP_ANON
13# ifdef MAP_ANONYMOUS 37# ifndef MAP_ANONYMOUS
14# define MAP_ANON MAP_ANONYMOUS 38# ifdef MAP_ANON
39# define MAP_ANONYMOUS MAP_ANON
15# else 40# else
16# undef HAVE_MMAP 41# undef HAVE_MMAP
17# endif 42# endif
18# endif 43# endif
19#endif 44#endif
20 45
21#define MAY_FLUSH /* increases codesize and is rarely used */
22
23#define SUB_INIT "Coro::State::initialize" 46#define SUB_INIT "Coro::State::initialize"
24#define UCORO_STATE "_coro_state" 47#define UCORO_STATE "_coro_state"
25 48
26/* The next macro should declare a variable stacklevel that contains and approximation 49/* The next macro should declare a variable stacklevel that contains and approximation
27 * to the current C stack pointer. Its property is that it changes with each call 50 * to the current C stack pointer. Its property is that it changes with each call
32 55
33#define labs(l) ((l) >= 0 ? (l) : -(l)) 56#define labs(l) ((l) >= 0 ? (l) : -(l))
34 57
35#include "CoroAPI.h" 58#include "CoroAPI.h"
36 59
60#ifdef USE_ITHREADS
61static perl_mutex coro_mutex;
62# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
63# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
64#else
65# define LOCK 0
66# define UNLOCK 0
67#endif
68
37static struct CoroAPI coroapi; 69static struct CoroAPI coroapi;
70static AV *main_mainstack; /* used to differentiate between $main and others */
71static HV *coro_state_stash;
72static SV *ucoro_state_sv;
73static U32 ucoro_state_hash;
74static SV *coro_mortal; /* will be freed after next transfer */
38 75
39/* this is actually not only the c stack but also c registers etc... */ 76/* this is actually not only the c stack but also c registers etc... */
40typedef struct { 77typedef struct {
41 int refcnt; /* pointer reference counter */ 78 int refcnt; /* pointer reference counter */
42 int usecnt; /* shared by how many coroutines */ 79 int usecnt; /* shared by how many coroutines */
47 void *sptr; 84 void *sptr;
48 long ssize; /* positive == mmap, otherwise malloc */ 85 long ssize; /* positive == mmap, otherwise malloc */
49} coro_stack; 86} coro_stack;
50 87
51struct coro { 88struct coro {
89 /* the top-level JMPENV for each coroutine, needed to catch dies. */
90 JMPENV start_env;
91
52 /* the optional C context */ 92 /* the optional C context */
53 coro_stack *stack; 93 coro_stack *stack;
54 void *cursp; 94 void *cursp;
55 int gencnt; 95 int gencnt;
56 96
68 AV *curstack; 108 AV *curstack;
69 AV *mainstack; 109 AV *mainstack;
70 SV **stack_sp; 110 SV **stack_sp;
71 OP *op; 111 OP *op;
72 SV **curpad; 112 SV **curpad;
113 AV *comppad;
114 CV *compcv;
73 SV **stack_base; 115 SV **stack_base;
74 SV **stack_max; 116 SV **stack_max;
75 SV **tmps_stack; 117 SV **tmps_stack;
76 I32 tmps_floor; 118 I32 tmps_floor;
77 I32 tmps_ix; 119 I32 tmps_ix;
96}; 138};
97 139
98typedef struct coro *Coro__State; 140typedef struct coro *Coro__State;
99typedef struct coro *Coro__State_or_hashref; 141typedef struct coro *Coro__State_or_hashref;
100 142
101static AV *main_mainstack; /* used to differentiate between $main and others */
102static HV *coro_state_stash;
103static SV *ucoro_state_sv;
104static U32 ucoro_state_hash;
105static HV *padlist_cache;
106
107/* mostly copied from op.c:cv_clone2 */ 143/* mostly copied from op.c:cv_clone2 */
108STATIC AV * 144STATIC AV *
109clone_padlist (AV *protopadlist) 145clone_padlist (pTHX_ AV *protopadlist)
110{ 146{
111 AV *av; 147 AV *av;
112 I32 ix; 148 I32 ix;
113 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); 149 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE);
114 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); 150 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE);
138 AvFLAGS (av) = AVf_REIFY; 174 AvFLAGS (av) = AVf_REIFY;
139 175
140 for (ix = fpad; ix > 0; ix--) 176 for (ix = fpad; ix > 0; ix--)
141 { 177 {
142 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; 178 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
179
143 if (namesv && namesv != &PL_sv_undef) 180 if (namesv && namesv != &PL_sv_undef)
144 { 181 {
145 char *name = SvPVX (namesv); /* XXX */ 182 char *name = SvPVX (namesv); /* XXX */
183
146 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') 184 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&')
147 { /* lexical from outside? */ 185 { /* lexical from outside? */
148 npad[ix] = SvREFCNT_inc (ppad[ix]); 186 npad[ix] = SvREFCNT_inc (ppad[ix]);
149 } 187 }
150 else 188 else
156 sv = (SV *) newAV (); 194 sv = (SV *) newAV ();
157 else if (*name == '%') 195 else if (*name == '%')
158 sv = (SV *) newHV (); 196 sv = (SV *) newHV ();
159 else 197 else
160 sv = NEWSV (0, 0); 198 sv = NEWSV (0, 0);
199
200#ifdef SvPADBUSY
161 if (!SvPADBUSY (sv)) 201 if (!SvPADBUSY (sv))
202#endif
162 SvPADMY_on (sv); 203 SvPADMY_on (sv);
204
163 npad[ix] = sv; 205 npad[ix] = sv;
164 } 206 }
165 } 207 }
166 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) 208 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix]))
167 { 209 {
196#endif 238#endif
197 239
198 return newpadlist; 240 return newpadlist;
199} 241}
200 242
201#ifdef MAY_FLUSH
202STATIC void 243STATIC void
203free_padlist (AV *padlist) 244free_padlist (pTHX_ AV *padlist)
204{ 245{
205 /* may be during global destruction */ 246 /* may be during global destruction */
206 if (SvREFCNT(padlist)) 247 if (SvREFCNT (padlist))
207 { 248 {
208 I32 i = AvFILLp(padlist); 249 I32 i = AvFILLp (padlist);
209 while (i >= 0) 250 while (i >= 0)
210 { 251 {
211 SV **svp = av_fetch(padlist, i--, FALSE); 252 SV **svp = av_fetch (padlist, i--, FALSE);
212 SV *sv = svp ? *svp : Nullsv;
213 if (sv) 253 if (svp)
254 {
255 SV *sv;
256 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
214 SvREFCNT_dec(sv); 257 SvREFCNT_dec (sv);
258
259 SvREFCNT_dec (*svp);
260 }
215 } 261 }
216 262
217 SvREFCNT_dec((SV*)padlist); 263 SvREFCNT_dec ((SV*)padlist);
218 } 264 }
219} 265}
220#endif 266
267STATIC int
268coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
269{
270 AV *padlist;
271 AV *av = (AV *)mg->mg_obj;
272
273 /* casting is fun. */
274 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
275 free_padlist (aTHX_ padlist);
276
277 SvREFCNT_dec (av);
278}
279
280#define PERL_MAGIC_coro PERL_MAGIC_ext
281
282static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221 283
222/* the next two functions merely cache the padlists */ 284/* the next two functions merely cache the padlists */
223STATIC void 285STATIC void
224get_padlist (CV *cv) 286get_padlist (pTHX_ CV *cv)
225{ 287{
226 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); 288 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
227 289
228 if (he && AvFILLp ((AV *)*he) >= 0) 290 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229 CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); 291 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
230 else 292 else
231 CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); 293 CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232} 294}
233 295
234STATIC void 296STATIC void
235put_padlist (CV *cv) 297put_padlist (pTHX_ CV *cv)
236{ 298{
237 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); 299 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
238 300
239 if (SvTYPE (*he) != SVt_PVAV) 301 if (!mg)
240 { 302 {
241 SvREFCNT_dec (*he); 303 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
304 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
305 mg->mg_virtual = &vtbl_coro;
242 *he = (SV *)newAV (); 306 mg->mg_obj = (SV *)newAV ();
243 } 307 }
244 308
245 av_push ((AV *)*he, (SV *)CvPADLIST (cv)); 309 av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv));
246} 310}
247
248#ifdef MAY_FLUSH
249STATIC void
250flush_padlist_cache ()
251{
252 HV *hv = padlist_cache;
253 padlist_cache = newHV ();
254
255 if (hv_iterinit (hv))
256 {
257 HE *he;
258 AV *padlist;
259
260 while (!!(he = hv_iternext (hv)))
261 {
262 AV *av = (AV *)HeVAL(he);
263
264 /* casting is fun. */
265 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
266 free_padlist (padlist);
267 }
268 }
269
270 SvREFCNT_dec (hv);
271}
272#endif
273 311
274#define SB do { 312#define SB do {
275#define SE } while (0) 313#define SE } while (0)
276 314
277#define LOAD(state) load_state(aTHX_ (state)); 315#define LOAD(state) load_state(aTHX_ (state));
278#define SAVE(state,flags) save_state(aTHX_ (state),(flags)); 316#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279 317
280#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE 318#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281 319
282static void 320static void
283load_state(pTHX_ Coro__State c) 321load_state(pTHX_ Coro__State c)
284{ 322{
285 PL_dowarn = c->dowarn; 323 PL_dowarn = c->dowarn;
289 PL_curstack = c->curstack; 327 PL_curstack = c->curstack;
290 PL_mainstack = c->mainstack; 328 PL_mainstack = c->mainstack;
291 PL_stack_sp = c->stack_sp; 329 PL_stack_sp = c->stack_sp;
292 PL_op = c->op; 330 PL_op = c->op;
293 PL_curpad = c->curpad; 331 PL_curpad = c->curpad;
332 PL_comppad = c->comppad;
333 PL_compcv = c->compcv;
294 PL_stack_base = c->stack_base; 334 PL_stack_base = c->stack_base;
295 PL_stack_max = c->stack_max; 335 PL_stack_max = c->stack_max;
296 PL_tmps_stack = c->tmps_stack; 336 PL_tmps_stack = c->tmps_stack;
297 PL_tmps_floor = c->tmps_floor; 337 PL_tmps_floor = c->tmps_floor;
298 PL_tmps_ix = c->tmps_ix; 338 PL_tmps_ix = c->tmps_ix;
325 { 365 {
326 AV *padlist = (AV *)POPs; 366 AV *padlist = (AV *)POPs;
327 367
328 if (padlist) 368 if (padlist)
329 { 369 {
330 put_padlist (cv); /* mark this padlist as available */ 370 put_padlist (aTHX_ cv); /* mark this padlist as available */
331 CvPADLIST(cv) = padlist; 371 CvPADLIST(cv) = padlist;
332#ifdef USE_THREADS
333 /*CvOWNER(cv) = (struct perl_thread *)POPs;*/
334#endif
335 } 372 }
336 373
337 ++CvDEPTH(cv); 374 ++CvDEPTH(cv);
338 } 375 }
339 376
366 if (CxTYPE(cx) == CXt_SUB) 403 if (CxTYPE(cx) == CXt_SUB)
367 { 404 {
368 CV *cv = cx->blk_sub.cv; 405 CV *cv = cx->blk_sub.cv;
369 if (CvDEPTH(cv)) 406 if (CvDEPTH(cv))
370 { 407 {
371#ifdef USE_THREADS
372 /*XPUSHs ((SV *)CvOWNER(cv));*/
373 /*CvOWNER(cv) = 0;*/
374 /*error must unlock this cv etc.. etc...*/
375#endif
376 EXTEND (SP, CvDEPTH(cv)*2); 408 EXTEND (SP, CvDEPTH(cv)*2);
377 409
378 while (--CvDEPTH(cv)) 410 while (--CvDEPTH(cv))
379 { 411 {
380 /* this tells the restore code to increment CvDEPTH */ 412 /* this tells the restore code to increment CvDEPTH */
383 } 415 }
384 416
385 PUSHs ((SV *)CvPADLIST(cv)); 417 PUSHs ((SV *)CvPADLIST(cv));
386 PUSHs ((SV *)cv); 418 PUSHs ((SV *)cv);
387 419
388 get_padlist (cv); /* this is a monster */ 420 get_padlist (aTHX_ cv); /* this is a monster */
389 } 421 }
390 } 422 }
423#ifdef CXt_FORMAT
391 else if (CxTYPE(cx) == CXt_FORMAT) 424 else if (CxTYPE(cx) == CXt_FORMAT)
392 { 425 {
393 /* I never used formats, so how should I know how these are implemented? */ 426 /* I never used formats, so how should I know how these are implemented? */
394 /* my bold guess is as a simple, plain sub... */ 427 /* my bold guess is as a simple, plain sub... */
395 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); 428 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396 } 429 }
430#endif
397 } 431 }
398 432
399 if (top_si->si_type == PERLSI_MAIN) 433 if (top_si->si_type == PERLSI_MAIN)
400 break; 434 break;
401 435
418 c->curstack = PL_curstack; 452 c->curstack = PL_curstack;
419 c->mainstack = PL_mainstack; 453 c->mainstack = PL_mainstack;
420 c->stack_sp = PL_stack_sp; 454 c->stack_sp = PL_stack_sp;
421 c->op = PL_op; 455 c->op = PL_op;
422 c->curpad = PL_curpad; 456 c->curpad = PL_curpad;
457 c->comppad = PL_comppad;
458 c->compcv = PL_compcv;
423 c->stack_base = PL_stack_base; 459 c->stack_base = PL_stack_base;
424 c->stack_max = PL_stack_max; 460 c->stack_max = PL_stack_max;
425 c->tmps_stack = PL_tmps_stack; 461 c->tmps_stack = PL_tmps_stack;
426 c->tmps_floor = PL_tmps_floor; 462 c->tmps_floor = PL_tmps_floor;
427 c->tmps_ix = PL_tmps_ix; 463 c->tmps_ix = PL_tmps_ix;
443} 479}
444 480
445/* 481/*
446 * allocate various perl stacks. This is an exact copy 482 * allocate various perl stacks. This is an exact copy
447 * of perl.c:init_stacks, except that it uses less memory 483 * of perl.c:init_stacks, except that it uses less memory
448 * on the assumption that coroutines do not usually need 484 * on the (sometimes correct) assumption that coroutines do
449 * a lot of stackspace. 485 * not usually need a lot of stackspace.
450 */ 486 */
451STATIC void 487STATIC void
452coro_init_stacks (pTHX) 488coro_init_stacks (pTHX)
453{ 489{
490 LOCK;
491
454 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 492 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455 PL_curstackinfo->si_type = PERLSI_MAIN; 493 PL_curstackinfo->si_type = PERLSI_MAIN;
456 PL_curstack = PL_curstackinfo->si_stack; 494 PL_curstack = PL_curstackinfo->si_stack;
457 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 495 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458 496
467 505
468 New(54,PL_markstack,16,I32); 506 New(54,PL_markstack,16,I32);
469 PL_markstack_ptr = PL_markstack; 507 PL_markstack_ptr = PL_markstack;
470 PL_markstack_max = PL_markstack + 16; 508 PL_markstack_max = PL_markstack + 16;
471 509
510#ifdef SET_MARK_OFFSET
472 SET_MARK_OFFSET; 511 SET_MARK_OFFSET;
512#endif
473 513
474 New(54,PL_scopestack,16,I32); 514 New(54,PL_scopestack,16,I32);
475 PL_scopestack_ix = 0; 515 PL_scopestack_ix = 0;
476 PL_scopestack_max = 16; 516 PL_scopestack_max = 16;
477 517
480 PL_savestack_max = 96; 520 PL_savestack_max = 96;
481 521
482 New(54,PL_retstack,8,OP*); 522 New(54,PL_retstack,8,OP*);
483 PL_retstack_ix = 0; 523 PL_retstack_ix = 0;
484 PL_retstack_max = 8; 524 PL_retstack_max = 8;
525
526 UNLOCK;
485} 527}
486 528
487/* 529/*
488 * destroy the stacks, the callchain etc... 530 * destroy the stacks, the callchain etc...
489 * still there is a memleak of 128 bytes...
490 */ 531 */
491STATIC void 532STATIC void
492destroy_stacks(pTHX) 533destroy_stacks(pTHX)
493{ 534{
494 if (!IN_DESTRUCT) 535 if (!IN_DESTRUCT)
495 { 536 {
496 /* is this ugly, I ask? */ 537 /* is this ugly, I ask? */
497 while (PL_scopestack_ix) 538 LEAVE_SCOPE (0);
498 LEAVE;
499 539
500 /* sure it is, but more important: is it correct?? :/ */ 540 /* sure it is, but more important: is it correct?? :/ */
501 while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
502 FREETMPS; 541 FREETMPS;
542
543 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/
503 } 544 }
504 545
505 while (PL_curstackinfo->si_next) 546 while (PL_curstackinfo->si_next)
506 PL_curstackinfo = PL_curstackinfo->si_next; 547 PL_curstackinfo = PL_curstackinfo->si_next;
507 548
508 while (PL_curstackinfo) 549 while (PL_curstackinfo)
509 { 550 {
510 PERL_SI *p = PL_curstackinfo->si_prev; 551 PERL_SI *p = PL_curstackinfo->si_prev;
511 552
512 { 553 { /*D*//*remove*/
513 dSP; 554 dSP;
514 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 555 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515 PUTBACK; /* possibly superfluous */ 556 PUTBACK; /* possibly superfluous */
516 } 557 }
517 558
518 if (!IN_DESTRUCT) 559 if (!IN_DESTRUCT)
519 { 560 {
520 dounwind(-1); 561 dounwind (-1);/*D*//*remove*/
521 SvREFCNT_dec(PL_curstackinfo->si_stack); 562 SvREFCNT_dec (PL_curstackinfo->si_stack);
522 } 563 }
523 564
524 Safefree(PL_curstackinfo->si_cxstack); 565 Safefree (PL_curstackinfo->si_cxstack);
525 Safefree(PL_curstackinfo); 566 Safefree (PL_curstackinfo);
526 PL_curstackinfo = p; 567 PL_curstackinfo = p;
527 } 568 }
528 569
529 Safefree(PL_tmps_stack); 570 Safefree (PL_tmps_stack);
530 Safefree(PL_markstack); 571 Safefree (PL_markstack);
531 Safefree(PL_scopestack); 572 Safefree (PL_scopestack);
532 Safefree(PL_savestack); 573 Safefree (PL_savestack);
533 Safefree(PL_retstack); 574 Safefree (PL_retstack);
534} 575}
535 576
536static void 577static void
537allocate_stack (Coro__State ctx, int alloc) 578allocate_stack (Coro__State ctx, int alloc)
538{ 579{
541 New (0, stack, 1, coro_stack); 582 New (0, stack, 1, coro_stack);
542 583
543 stack->refcnt = 1; 584 stack->refcnt = 1;
544 stack->usecnt = 1; 585 stack->usecnt = 1;
545 stack->gencnt = ctx->gencnt = 0; 586 stack->gencnt = ctx->gencnt = 0;
587
546 if (alloc) 588 if (alloc)
547 { 589 {
548#ifdef HAVE_MMAP 590#if HAVE_MMAP
549 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ 591 stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
550 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); 592 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
551 if (stack->sptr == (void *)-1) 593 if (stack->sptr == (void *)-1)
552#endif 594#endif
553 { 595 {
554 /*FIXME*//*D*//* reasonable stack size! */ 596 /*FIXME*//*D*//* reasonable stack size! */
555 stack->ssize = -4096 * sizeof (long); 597 stack->ssize = - (8192 * sizeof (long));
556 New (0, stack->sptr, 4096, long); 598 New (0, stack->sptr, 8192, long);
557 } 599 }
558 } 600 }
559 else 601 else
560 stack->sptr = 0; 602 stack->sptr = 0;
561 603
575 { 617 {
576#ifdef HAVE_MMAP 618#ifdef HAVE_MMAP
577 if (stack->ssize > 0 && stack->sptr) 619 if (stack->ssize > 0 && stack->sptr)
578 munmap (stack->sptr, stack->ssize); 620 munmap (stack->sptr, stack->ssize);
579 else 621 else
580#else 622#endif
581 Safefree (stack->sptr); 623 Safefree (stack->sptr);
582#endif 624
583 Safefree (stack); 625 Safefree (stack);
584 } 626 }
585 else if (ctx->gencnt == stack->gencnt) 627 else if (ctx->gencnt == stack->gencnt)
586 --stack->usecnt; 628 --stack->usecnt;
587 } 629 }
591setup_coro (void *arg) 633setup_coro (void *arg)
592{ 634{
593 /* 635 /*
594 * emulate part of the perl startup here. 636 * emulate part of the perl startup here.
595 */ 637 */
638 dTHX;
596 dSP; 639 dSP;
597 Coro__State ctx = (Coro__State)arg; 640 Coro__State ctx = (Coro__State)arg;
598 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 641 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
599 642
600 coro_init_stacks (aTHX); 643 coro_init_stacks (aTHX);
601 /*PL_curcop = 0;*/ 644 /*PL_curcop = 0;*/
602 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 645 /*PL_in_eval = PL_in_eval;*/ /* inherit */
603 SvREFCNT_dec (GvAV (PL_defgv)); 646 SvREFCNT_dec (GvAV (PL_defgv));
604 GvAV (PL_defgv) = ctx->args; 647 GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605 648
606 SPAGAIN; 649 SPAGAIN;
607 650
608 if (ctx->stack) 651 if (ctx->stack)
609 { 652 {
636 * that doesn't matter, though, since it is only 679 * that doesn't matter, though, since it is only
637 * pp_nextstate and we never return... 680 * pp_nextstate and we never return...
638 * ah yes, and I don't care anyways ;) 681 * ah yes, and I don't care anyways ;)
639 */ 682 */
640 PUTBACK; 683 PUTBACK;
641 PL_op = pp_entersub(); 684 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642 SPAGAIN; 685 SPAGAIN;
643 686
644 ENTER; /* necessary e.g. for dounwind */ 687 ENTER; /* necessary e.g. for dounwind */
645 } 688 }
646} 689}
649continue_coro (void *arg) 692continue_coro (void *arg)
650{ 693{
651 /* 694 /*
652 * this is a _very_ stripped down perl interpreter ;) 695 * this is a _very_ stripped down perl interpreter ;)
653 */ 696 */
697 dTHX;
654 Coro__State ctx = (Coro__State)arg; 698 Coro__State ctx = (Coro__State)arg;
655 JMPENV coro_start_env; 699 JMPENV coro_start_env;
656 700
657 /* same as JMPENV_BOOTSTRAP */
658 Zero(&coro_start_env, 1, JMPENV);
659 coro_start_env.je_ret = -1;
660 coro_start_env.je_mustcatch = TRUE;
661 PL_top_env = &coro_start_env; 701 PL_top_env = &ctx->start_env;
662 702
663 ctx->cursp = 0; 703 ctx->cursp = 0;
664 PL_op = PL_op->op_next; 704 PL_op = PL_op->op_next;
665 CALLRUNOPS(aTHX); 705 CALLRUNOPS(aTHX);
666 706
667 abort (); 707 abort ();
668} 708}
669 709
670STATIC void 710STATIC void
671transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 711transfer (pTHX_ struct coro *prev, struct coro *next, int flags)
672{ 712{
673 dSTACKLEVEL; 713 dSTACKLEVEL;
674 static struct coro *xnext;
675 714
676 if (prev != next) 715 if (prev != next)
677 { 716 {
678 xnext = next;
679
680 if (next->mainstack) 717 if (next->mainstack)
681 { 718 {
719 LOCK;
682 SAVE (prev, flags); 720 SAVE (prev, flags);
683 LOAD (next); 721 LOAD (next);
722 UNLOCK;
684 723
685 /* mark this state as in-use */ 724 /* mark this state as in-use */
686 next->mainstack = 0; 725 next->mainstack = 0;
687 next->tmps_ix = -2; 726 next->tmps_ix = -2;
688 727
707 continue_coro, (void *)next, 746 continue_coro, (void *)next,
708 next->stack->sptr, labs (next->stack->ssize)); 747 next->stack->sptr, labs (next->stack->ssize));
709 } 748 }
710 749
711 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 750 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
751 prev->cursp = stacklevel;
712 /* don't add any code here */ 752 /* don't add any code here */
713 } 753 }
714 754 else
755 next->cursp = stacklevel;
715 } 756 }
716 else if (next->tmps_ix == -2) 757 else if (next->tmps_ix == -2)
717 croak ("tried to transfer to running coroutine"); 758 croak ("tried to transfer to running coroutine");
718 else 759 else
719 { 760 {
761 LOCK;
720 SAVE (prev, -1); /* first get rid of the old state */ 762 SAVE (prev, -1); /* first get rid of the old state */
763 UNLOCK;
721 764
722 if (flags & TRANSFER_SAVE_CCTXT) 765 if (flags & TRANSFER_SAVE_CCTXT)
723 { 766 {
724 if (!prev->stack) 767 if (!prev->stack)
725 allocate_stack (prev, 0); 768 allocate_stack (prev, 0);
726 769
727 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) 770 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728 { 771 {
772 PL_top_env = &next->start_env;
773
729 setup_coro (next); 774 setup_coro (next);
775 next->cursp = stacklevel;
730 776
731 prev->stack->refcnt++; 777 prev->stack->refcnt++;
732 prev->stack->usecnt++; 778 prev->stack->usecnt++;
733 next->stack = prev->stack; 779 next->stack = prev->stack;
734 next->gencnt = prev->gencnt; 780 next->gencnt = prev->gencnt;
735 } 781 }
736 else 782 else
737 { 783 {
784 assert (!next->stack);
738 allocate_stack (next, 1); 785 allocate_stack (next, 1);
739 coro_create (&(next->stack->cctx), 786 coro_create (&(next->stack->cctx),
740 setup_coro, (void *)next, 787 setup_coro, (void *)next,
741 next->stack->sptr, labs (next->stack->ssize)); 788 next->stack->sptr, labs (next->stack->ssize));
742 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 789 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
790 prev->cursp = stacklevel;
743 /* don't add any code here */ 791 /* don't add any code here */
744 } 792 }
745 } 793 }
746 else 794 else
795 {
747 setup_coro (next); 796 setup_coro (next);
797 next->cursp = stacklevel;
798 }
748 } 799 }
749
750 /*
751 * xnext is now either prev or next, depending on wether
752 * we switched the c stack or not. that's why i use a global
753 * variable, that should become thread-specific at one point.
754 */
755 xnext->cursp = stacklevel;
756 } 800 }
757}
758 801
759static struct coro * 802 LOCK;
760sv_to_coro (SV *arg, const char *funcname, const char *varname) 803 if (coro_mortal)
761{
762 if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763 { 804 {
764 HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); 805 SvREFCNT_dec (coro_mortal);
765 806 coro_mortal = 0;
766 if (!he)
767 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname);
768
769 arg = HeVAL(he);
770 } 807 }
771 808 UNLOCK;
809}
810
811#define SV_CORO(sv,func) \
812 do { \
813 if (SvROK (sv)) \
814 sv = SvRV (sv); \
815 \
816 if (SvTYPE (sv) == SVt_PVHV) \
817 { \
818 HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \
819 \
820 if (!he) \
821 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
822 \
823 (sv) = SvRV (HeVAL(he)); \
824 } \
825 \
772 /* must also be changed inside Coro::Cont::yield */ 826 /* must also be changed inside Coro::Cont::yield */ \
773 if (SvROK(arg) && SvOBJECT(SvRV(arg)) 827 if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \
774 && SvSTASH(SvRV(arg)) == coro_state_stash)
775 return (struct coro *) SvIV((SV*)SvRV(arg));
776
777 croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname); 828 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778 /*NORETURN*/ 829 \
779} 830 } while(0)
831
832#define SvSTATE(sv) (struct coro *)SvIV (sv)
780 833
781static void 834static void
782api_transfer(pTHX_ SV *prev, SV *next, int flags) 835api_transfer(pTHX_ SV *prev, SV *next, int flags)
783{ 836{
784 transfer(aTHX_ 837 SV_CORO (prev, "Coro::transfer");
785 sv_to_coro (prev, "Coro::transfer", "prev"), 838 SV_CORO (next, "Coro::transfer");
786 sv_to_coro (next, "Coro::transfer", "next"), 839
787 flags); 840 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788} 841}
789 842
790/** Coro ********************************************************************/ 843/** Coro ********************************************************************/
791 844
792#define PRIO_MAX 3 845#define PRIO_MAX 3
800static GV *coro_current, *coro_idle; 853static GV *coro_current, *coro_idle;
801static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; 854static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802static int coro_nready; 855static int coro_nready;
803 856
804static void 857static void
805coro_enq (SV *sv) 858coro_enq (pTHX_ SV *sv)
806{ 859{
807 if (SvROK (sv)) 860 if (SvTYPE (sv) == SVt_PVHV)
808 { 861 {
809 SV *hv = SvRV (sv);
810 if (SvTYPE (hv) == SVt_PVHV)
811 {
812 SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0); 862 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
813 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; 863 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814 864
815 prio = prio > PRIO_MAX ? PRIO_MAX 865 prio = prio > PRIO_MAX ? PRIO_MAX
816 : prio < PRIO_MIN ? PRIO_MIN 866 : prio < PRIO_MIN ? PRIO_MIN
817 : prio; 867 : prio;
818 868
819 av_push (coro_ready [prio - PRIO_MIN], sv); 869 av_push (coro_ready [prio - PRIO_MIN], sv);
820 coro_nready++; 870 coro_nready++;
821 871
822 return; 872 return;
823 }
824 } 873 }
825 874
826 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 875 croak ("Coro::ready tried to enqueue something that is not a coroutine");
827} 876}
828 877
829static SV * 878static SV *
830coro_deq (int min_prio) 879coro_deq (pTHX_ int min_prio)
831{ 880{
832 int prio = PRIO_MAX - PRIO_MIN; 881 int prio = PRIO_MAX - PRIO_MIN;
833 882
834 min_prio -= PRIO_MIN; 883 min_prio -= PRIO_MIN;
835 if (min_prio < 0) 884 if (min_prio < 0)
846} 895}
847 896
848static void 897static void
849api_ready (SV *coro) 898api_ready (SV *coro)
850{ 899{
900 dTHX;
901
902 if (SvROK (coro))
903 coro = SvRV (coro);
904
905 LOCK;
851 coro_enq (SvREFCNT_inc (coro)); 906 coro_enq (aTHX_ SvREFCNT_inc (coro));
907 UNLOCK;
852} 908}
853 909
854static void 910static void
855api_schedule (int cede) 911api_schedule (void)
856{ 912{
913 dTHX;
914
857 SV *prev, *next; 915 SV *prev, *next;
858 916
917 LOCK;
918
859 prev = GvSV (coro_current); 919 prev = SvRV (GvSV (coro_current));
860
861 if (cede)
862 coro_enq (SvREFCNT_inc (prev));
863
864 next = coro_deq (PRIO_MIN); 920 next = coro_deq (aTHX_ PRIO_MIN);
865 921
866 if (!next) 922 if (!next)
867 next = SvREFCNT_inc (GvSV (coro_idle)); 923 next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868 924
869 GvSV (coro_current) = SvREFCNT_inc (next); 925 /* free this only after the transfer */
870 transfer (aTHX_ 926 coro_mortal = prev;
871 sv_to_coro (prev, "Coro::schedule", "current coroutine"), 927 SV_CORO (prev, "Coro::schedule");
872 sv_to_coro (next, "Coro::schedule", "next coroutine"), 928
929 SvRV (GvSV (coro_current)) = next;
930
931 SV_CORO (next, "Coro::schedule");
932
933 UNLOCK;
934
935 transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); 936 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
874 SvREFCNT_dec (next); 937}
875 SvREFCNT_dec (prev); 938
939static void
940api_cede (void)
941{
942 dTHX;
943
944 LOCK;
945 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
946 UNLOCK;
947
948 api_schedule ();
876} 949}
877 950
878MODULE = Coro::State PACKAGE = Coro::State 951MODULE = Coro::State PACKAGE = Coro::State
879 952
880PROTOTYPES: ENABLE 953PROTOTYPES: ENABLE
881 954
882BOOT: 955BOOT:
883{ /* {} necessary for stoopid perl-5.6.x */ 956{ /* {} necessary for stoopid perl-5.6.x */
957#ifdef USE_ITHREADS
958 MUTEX_INIT (&coro_mutex);
959#endif
960
884 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 961 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 962 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 963 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887 964
888 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 965 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 966 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 967 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); 968 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893 if (!padlist_cache)
894 padlist_cache = newHV ();
895 969
896 main_mainstack = PL_mainstack; 970 main_mainstack = PL_mainstack;
897 971
898 coroapi.ver = CORO_API_VERSION; 972 coroapi.ver = CORO_API_VERSION;
899 coroapi.transfer = api_transfer; 973 coroapi.transfer = api_transfer;
907 Coro__State coro; 981 Coro__State coro;
908 982
909 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) 983 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV)
910 croak ("Coro::State::_newprocess expects an arrayref"); 984 croak ("Coro::State::_newprocess expects an arrayref");
911 985
912 New (0, coro, 1, struct coro); 986 Newz (0, coro, 1, struct coro);
913 987
914 coro->args = (AV *)SvREFCNT_inc (SvRV (args)); 988 coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915 coro->mainstack = 0; /* actual work is done inside transfer */ 989 /*coro->mainstack = 0; *//*actual work is done inside transfer */
916 coro->stack = 0; 990 /*coro->stack = 0;*/
991
992 /* same as JMPENV_BOOTSTRAP */
993 /* we might be able to recycle start_env, but safe is safe */
994 /*Zero(&coro->start_env, 1, JMPENV);*/
995 coro->start_env.je_ret = -1;
996 coro->start_env.je_mustcatch = TRUE;
917 997
918 RETVAL = coro; 998 RETVAL = coro;
919 OUTPUT: 999 OUTPUT:
920 RETVAL 1000 RETVAL
921 1001
922void 1002void
923transfer(prev, next, flags) 1003transfer(prev, next, flags)
924 Coro::State_or_hashref prev 1004 SV *prev
925 Coro::State_or_hashref next 1005 SV *next
926 int flags 1006 int flags
927 PROTOTYPE: @ 1007 PROTOTYPE: @
928 CODE: 1008 CODE:
929 PUTBACK; 1009 PUTBACK;
1010 SV_CORO (next, "Coro::transfer");
1011 SV_CORO (prev, "Coro::transfer");
930 transfer (aTHX_ prev, next, flags); 1012 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931 SPAGAIN; 1013 SPAGAIN;
932 1014
933void 1015void
934DESTROY(coro) 1016DESTROY(coro)
935 Coro::State coro 1017 Coro::State coro
938 if (coro->mainstack && coro->mainstack != main_mainstack) 1020 if (coro->mainstack && coro->mainstack != main_mainstack)
939 { 1021 {
940 struct coro temp; 1022 struct coro temp;
941 1023
942 PUTBACK; 1024 PUTBACK;
943 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 1025 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944 LOAD(aTHX_ coro); 1026 LOAD (aTHX_ coro);
945 SPAGAIN; 1027 SPAGAIN;
946 1028
947 destroy_stacks (aTHX); 1029 destroy_stacks (aTHX);
948 1030
949 LOAD((&temp)); /* this will get rid of defsv etc.. */ 1031 LOAD ((&temp)); /* this will get rid of defsv etc.. */
950 SPAGAIN; 1032 SPAGAIN;
951 1033
952 coro->mainstack = 0; 1034 coro->mainstack = 0;
953 } 1035 }
954 1036
955 deallocate_stack (coro); 1037 deallocate_stack (coro);
956 1038 SvREFCNT_dec (coro->args);
957 Safefree (coro); 1039 Safefree (coro);
958
959void
960flush()
961 CODE:
962#ifdef MAY_FLUSH
963 flush_padlist_cache ();
964#endif
965 1040
966void 1041void
967_exit(code) 1042_exit(code)
968 int code 1043 int code
969 PROTOTYPE: $ 1044 PROTOTYPE: $
970 CODE: 1045 CODE:
971#if defined(__GLIBC__) || _POSIX_C_SOURCE
972 _exit (code); 1046 _exit (code);
973#else
974 signal (SIGTERM, SIG_DFL);
975 raise (SIGTERM);
976 exit (code);
977#endif
978 1047
979MODULE = Coro::State PACKAGE = Coro::Cont 1048MODULE = Coro::State PACKAGE = Coro::Cont
980 1049
981# this is slightly dirty (should expose a c-level api) 1050# this is slightly dirty (should expose a c-level api)
982 1051
988 SV *sv; 1057 SV *sv;
989 AV *defav = GvAV (PL_defgv); 1058 AV *defav = GvAV (PL_defgv);
990 struct coro *prev, *next; 1059 struct coro *prev, *next;
991 1060
992 if (!returnstk) 1061 if (!returnstk)
993 returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); 1062 returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
994 1063
995 /* set up @_ -- ugly */ 1064 /* set up @_ -- ugly */
996 av_clear (defav); 1065 av_clear (defav);
997 av_fill (defav, items - 1); 1066 av_fill (defav, items - 1);
998 while (items--) 1067 while (items--)
999 av_store (defav, items, SvREFCNT_inc (ST(items))); 1068 av_store (defav, items, SvREFCNT_inc (ST(items)));
1000 1069
1001 mg_get (returnstk); /* isn't documentation wrong for mg_get? */ 1070 SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
1002 sv = av_pop ((AV *)SvRV (returnstk)); 1071 sv = av_pop ((AV *)SvRV (returnstk));
1003 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); 1072 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)));
1004 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); 1073 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
1005 SvREFCNT_dec (sv); 1074 SvREFCNT_dec (sv);
1006 1075
1007 transfer(aTHX_ prev, next, 0); 1076 transfer (aTHX_ prev, next, 0);
1008 1077
1009MODULE = Coro::State PACKAGE = Coro 1078MODULE = Coro::State PACKAGE = Coro
1010 1079
1011# this is slightly dirty (should expose a c-level api) 1080# this is slightly dirty (should expose a c-level api)
1012 1081
1030 1099
1031 { 1100 {
1032 SV *sv = perl_get_sv("Coro::API", 1); 1101 SV *sv = perl_get_sv("Coro::API", 1);
1033 1102
1034 coroapi.schedule = api_schedule; 1103 coroapi.schedule = api_schedule;
1104 coroapi.cede = api_cede;
1035 coroapi.ready = api_ready; 1105 coroapi.ready = api_ready;
1036 coroapi.nready = &coro_nready; 1106 coroapi.nready = &coro_nready;
1037 coroapi.current = coro_current; 1107 coroapi.current = coro_current;
1038 1108
1039 GCoroAPI = &coroapi; 1109 GCoroAPI = &coroapi;
1040 sv_setiv(sv, (IV)&coroapi); 1110 sv_setiv(sv, (IV)&coroapi);
1041 SvREADONLY_on(sv); 1111 SvREADONLY_on(sv);
1042 } 1112 }
1043} 1113}
1114
1115#if !PERL_MICRO
1044 1116
1045void 1117void
1046ready(self) 1118ready(self)
1047 SV * self 1119 SV * self
1048 PROTOTYPE: $ 1120 PROTOTYPE: $
1049 CODE: 1121 CODE:
1050 api_ready (self); 1122 api_ready (self);
1123
1124#endif
1051 1125
1052int 1126int
1053nready(...) 1127nready(...)
1054 PROTOTYPE: 1128 PROTOTYPE:
1055 CODE: 1129 CODE:
1058 RETVAL 1132 RETVAL
1059 1133
1060void 1134void
1061schedule(...) 1135schedule(...)
1062 PROTOTYPE: 1136 PROTOTYPE:
1063 ALIAS:
1064 cede = 1
1065 CODE: 1137 CODE:
1066 api_schedule (ix); 1138 api_schedule ();
1067 1139
1140void
1141cede(...)
1142 PROTOTYPE:
1143 CODE:
1144 api_cede ();
1145

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