ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.37 by root, Tue Oct 9 00:39:11 2001 UTC vs.
Revision 1.61 by root, Tue Aug 10 01:56:30 2004 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"
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
4 29
5#include "libcoro/coro.c" 30#include "libcoro/coro.c"
6 31
7#include <signal.h> 32#include <signal.h>
8 33
… …
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;
73 SV **stack_base; 114 SV **stack_base;
74 SV **stack_max; 115 SV **stack_max;
75 SV **tmps_stack; 116 SV **tmps_stack;
76 I32 tmps_floor; 117 I32 tmps_floor;
77 I32 tmps_ix; 118 I32 tmps_ix;
… …
96}; 137};
97 138
98typedef struct coro *Coro__State; 139typedef struct coro *Coro__State;
99typedef struct coro *Coro__State_or_hashref; 140typedef struct coro *Coro__State_or_hashref;
100 141
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 */ 142/* mostly copied from op.c:cv_clone2 */
108STATIC AV * 143STATIC AV *
109clone_padlist (AV *protopadlist) 144clone_padlist (pTHX_ AV *protopadlist)
110{ 145{
111 AV *av; 146 AV *av;
112 I32 ix; 147 I32 ix;
113 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); 148 AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE);
114 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); 149 AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE);
… …
138 AvFLAGS (av) = AVf_REIFY; 173 AvFLAGS (av) = AVf_REIFY;
139 174
140 for (ix = fpad; ix > 0; ix--) 175 for (ix = fpad; ix > 0; ix--)
141 { 176 {
142 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; 177 SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
178
143 if (namesv && namesv != &PL_sv_undef) 179 if (namesv && namesv != &PL_sv_undef)
144 { 180 {
145 char *name = SvPVX (namesv); /* XXX */ 181 char *name = SvPVX (namesv); /* XXX */
182
146 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') 183 if (SvFLAGS (namesv) & SVf_FAKE || *name == '&')
147 { /* lexical from outside? */ 184 { /* lexical from outside? */
148 npad[ix] = SvREFCNT_inc (ppad[ix]); 185 npad[ix] = SvREFCNT_inc (ppad[ix]);
149 } 186 }
150 else 187 else
… …
156 sv = (SV *) newAV (); 193 sv = (SV *) newAV ();
157 else if (*name == '%') 194 else if (*name == '%')
158 sv = (SV *) newHV (); 195 sv = (SV *) newHV ();
159 else 196 else
160 sv = NEWSV (0, 0); 197 sv = NEWSV (0, 0);
198
199#ifdef SvPADBUSY
161 if (!SvPADBUSY (sv)) 200 if (!SvPADBUSY (sv))
201#endif
162 SvPADMY_on (sv); 202 SvPADMY_on (sv);
203
163 npad[ix] = sv; 204 npad[ix] = sv;
164 } 205 }
165 } 206 }
166 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) 207 else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix]))
167 { 208 {
… …
196#endif 237#endif
197 238
198 return newpadlist; 239 return newpadlist;
199} 240}
200 241
201#ifdef MAY_FLUSH
202STATIC void 242STATIC void
203free_padlist (AV *padlist) 243free_padlist (pTHX_ AV *padlist)
204{ 244{
205 /* may be during global destruction */ 245 /* may be during global destruction */
206 if (SvREFCNT(padlist)) 246 if (SvREFCNT (padlist))
207 { 247 {
208 I32 i = AvFILLp(padlist); 248 I32 i = AvFILLp (padlist);
209 while (i >= 0) 249 while (i >= 0)
210 { 250 {
211 SV **svp = av_fetch(padlist, i--, FALSE); 251 SV **svp = av_fetch (padlist, i--, FALSE);
212 SV *sv = svp ? *svp : Nullsv;
213 if (sv) 252 if (svp)
253 {
254 SV *sv;
255 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp)))
214 SvREFCNT_dec(sv); 256 SvREFCNT_dec (sv);
257
258 SvREFCNT_dec (*svp);
259 }
215 } 260 }
216 261
217 SvREFCNT_dec((SV*)padlist); 262 SvREFCNT_dec ((SV*)padlist);
218 } 263 }
219} 264}
220#endif 265
266STATIC int
267coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
268{
269 AV *padlist;
270 AV *av = (AV *)mg->mg_obj;
271
272 /* casting is fun. */
273 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
274 free_padlist (aTHX_ padlist);
275
276 SvREFCNT_dec (av);
277}
278
279#define PERL_MAGIC_coro PERL_MAGIC_ext
280
281static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
221 282
222/* the next two functions merely cache the padlists */ 283/* the next two functions merely cache the padlists */
223STATIC void 284STATIC void
224get_padlist (CV *cv) 285get_padlist (pTHX_ CV *cv)
225{ 286{
226 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); 287 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
227 288
228 if (he && AvFILLp ((AV *)*he) >= 0) 289 if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
229 CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); 290 CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj);
230 else 291 else
231 CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); 292 CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
232} 293}
233 294
234STATIC void 295STATIC void
235put_padlist (CV *cv) 296put_padlist (pTHX_ CV *cv)
236{ 297{
237 SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); 298 MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
238 299
239 if (SvTYPE (*he) != SVt_PVAV) 300 if (!mg)
240 { 301 {
241 SvREFCNT_dec (*he); 302 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
303 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
304 mg->mg_virtual = &vtbl_coro;
242 *he = (SV *)newAV (); 305 mg->mg_obj = (SV *)newAV ();
243 } 306 }
244 307
245 av_push ((AV *)*he, (SV *)CvPADLIST (cv)); 308 av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv));
246} 309}
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
273 310
274#define SB do { 311#define SB do {
275#define SE } while (0) 312#define SE } while (0)
276 313
277#define LOAD(state) load_state(aTHX_ (state)); 314#define LOAD(state) load_state(aTHX_ (state));
278#define SAVE(state,flags) save_state(aTHX_ (state),(flags)); 315#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
279 316
280#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE 317#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
281 318
282static void 319static void
283load_state(pTHX_ Coro__State c) 320load_state(pTHX_ Coro__State c)
284{ 321{
285 PL_dowarn = c->dowarn; 322 PL_dowarn = c->dowarn;
… …
289 PL_curstack = c->curstack; 326 PL_curstack = c->curstack;
290 PL_mainstack = c->mainstack; 327 PL_mainstack = c->mainstack;
291 PL_stack_sp = c->stack_sp; 328 PL_stack_sp = c->stack_sp;
292 PL_op = c->op; 329 PL_op = c->op;
293 PL_curpad = c->curpad; 330 PL_curpad = c->curpad;
331 PL_comppad = c->comppad;
294 PL_stack_base = c->stack_base; 332 PL_stack_base = c->stack_base;
295 PL_stack_max = c->stack_max; 333 PL_stack_max = c->stack_max;
296 PL_tmps_stack = c->tmps_stack; 334 PL_tmps_stack = c->tmps_stack;
297 PL_tmps_floor = c->tmps_floor; 335 PL_tmps_floor = c->tmps_floor;
298 PL_tmps_ix = c->tmps_ix; 336 PL_tmps_ix = c->tmps_ix;
… …
325 { 363 {
326 AV *padlist = (AV *)POPs; 364 AV *padlist = (AV *)POPs;
327 365
328 if (padlist) 366 if (padlist)
329 { 367 {
330 put_padlist (cv); /* mark this padlist as available */ 368 put_padlist (aTHX_ cv); /* mark this padlist as available */
331 CvPADLIST(cv) = padlist; 369 CvPADLIST(cv) = padlist;
332#ifdef USE_THREADS
333 /*CvOWNER(cv) = (struct perl_thread *)POPs;*/
334#endif
335 } 370 }
336 371
337 ++CvDEPTH(cv); 372 ++CvDEPTH(cv);
338 } 373 }
339 374
… …
366 if (CxTYPE(cx) == CXt_SUB) 401 if (CxTYPE(cx) == CXt_SUB)
367 { 402 {
368 CV *cv = cx->blk_sub.cv; 403 CV *cv = cx->blk_sub.cv;
369 if (CvDEPTH(cv)) 404 if (CvDEPTH(cv))
370 { 405 {
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); 406 EXTEND (SP, CvDEPTH(cv)*2);
377 407
378 while (--CvDEPTH(cv)) 408 while (--CvDEPTH(cv))
379 { 409 {
380 /* this tells the restore code to increment CvDEPTH */ 410 /* this tells the restore code to increment CvDEPTH */
… …
383 } 413 }
384 414
385 PUSHs ((SV *)CvPADLIST(cv)); 415 PUSHs ((SV *)CvPADLIST(cv));
386 PUSHs ((SV *)cv); 416 PUSHs ((SV *)cv);
387 417
388 get_padlist (cv); /* this is a monster */ 418 get_padlist (aTHX_ cv); /* this is a monster */
389 } 419 }
390 } 420 }
421#ifdef CXt_FORMAT
391 else if (CxTYPE(cx) == CXt_FORMAT) 422 else if (CxTYPE(cx) == CXt_FORMAT)
392 { 423 {
393 /* I never used formats, so how should I know how these are implemented? */ 424 /* I never used formats, so how should I know how these are implemented? */
394 /* my bold guess is as a simple, plain sub... */ 425 /* my bold guess is as a simple, plain sub... */
395 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); 426 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
396 } 427 }
428#endif
397 } 429 }
398 430
399 if (top_si->si_type == PERLSI_MAIN) 431 if (top_si->si_type == PERLSI_MAIN)
400 break; 432 break;
401 433
… …
418 c->curstack = PL_curstack; 450 c->curstack = PL_curstack;
419 c->mainstack = PL_mainstack; 451 c->mainstack = PL_mainstack;
420 c->stack_sp = PL_stack_sp; 452 c->stack_sp = PL_stack_sp;
421 c->op = PL_op; 453 c->op = PL_op;
422 c->curpad = PL_curpad; 454 c->curpad = PL_curpad;
455 c->comppad = PL_comppad;
423 c->stack_base = PL_stack_base; 456 c->stack_base = PL_stack_base;
424 c->stack_max = PL_stack_max; 457 c->stack_max = PL_stack_max;
425 c->tmps_stack = PL_tmps_stack; 458 c->tmps_stack = PL_tmps_stack;
426 c->tmps_floor = PL_tmps_floor; 459 c->tmps_floor = PL_tmps_floor;
427 c->tmps_ix = PL_tmps_ix; 460 c->tmps_ix = PL_tmps_ix;
… …
443} 476}
444 477
445/* 478/*
446 * allocate various perl stacks. This is an exact copy 479 * allocate various perl stacks. This is an exact copy
447 * of perl.c:init_stacks, except that it uses less memory 480 * of perl.c:init_stacks, except that it uses less memory
448 * on the assumption that coroutines do not usually need 481 * on the (sometimes correct) assumption that coroutines do
449 * a lot of stackspace. 482 * not usually need a lot of stackspace.
450 */ 483 */
451STATIC void 484STATIC void
452coro_init_stacks (pTHX) 485coro_init_stacks (pTHX)
453{ 486{
487 LOCK;
488
454 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 489 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
455 PL_curstackinfo->si_type = PERLSI_MAIN; 490 PL_curstackinfo->si_type = PERLSI_MAIN;
456 PL_curstack = PL_curstackinfo->si_stack; 491 PL_curstack = PL_curstackinfo->si_stack;
457 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 492 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
458 493
… …
467 502
468 New(54,PL_markstack,16,I32); 503 New(54,PL_markstack,16,I32);
469 PL_markstack_ptr = PL_markstack; 504 PL_markstack_ptr = PL_markstack;
470 PL_markstack_max = PL_markstack + 16; 505 PL_markstack_max = PL_markstack + 16;
471 506
507#ifdef SET_MARK_OFFSET
472 SET_MARK_OFFSET; 508 SET_MARK_OFFSET;
509#endif
473 510
474 New(54,PL_scopestack,16,I32); 511 New(54,PL_scopestack,16,I32);
475 PL_scopestack_ix = 0; 512 PL_scopestack_ix = 0;
476 PL_scopestack_max = 16; 513 PL_scopestack_max = 16;
477 514
… …
480 PL_savestack_max = 96; 517 PL_savestack_max = 96;
481 518
482 New(54,PL_retstack,8,OP*); 519 New(54,PL_retstack,8,OP*);
483 PL_retstack_ix = 0; 520 PL_retstack_ix = 0;
484 PL_retstack_max = 8; 521 PL_retstack_max = 8;
522
523 UNLOCK;
485} 524}
486 525
487/* 526/*
488 * destroy the stacks, the callchain etc... 527 * destroy the stacks, the callchain etc...
489 * still there is a memleak of 128 bytes...
490 */ 528 */
491STATIC void 529STATIC void
492destroy_stacks(pTHX) 530destroy_stacks(pTHX)
493{ 531{
494 if (!IN_DESTRUCT) 532 if (!IN_DESTRUCT)
495 { 533 {
496 /* is this ugly, I ask? */ 534 /* is this ugly, I ask? */
497 while (PL_scopestack_ix) 535 LEAVE_SCOPE (0);
498 LEAVE;
499 536
500 /* sure it is, but more important: is it correct?? :/ */ 537 /* 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; 538 FREETMPS;
539
540 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/
503 } 541 }
504 542
505 while (PL_curstackinfo->si_next) 543 while (PL_curstackinfo->si_next)
506 PL_curstackinfo = PL_curstackinfo->si_next; 544 PL_curstackinfo = PL_curstackinfo->si_next;
507 545
508 while (PL_curstackinfo) 546 while (PL_curstackinfo)
509 { 547 {
510 PERL_SI *p = PL_curstackinfo->si_prev; 548 PERL_SI *p = PL_curstackinfo->si_prev;
511 549
512 { 550 { /*D*//*remove*/
513 dSP; 551 dSP;
514 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); 552 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
515 PUTBACK; /* possibly superfluous */ 553 PUTBACK; /* possibly superfluous */
516 } 554 }
517 555
518 if (!IN_DESTRUCT) 556 if (!IN_DESTRUCT)
519 { 557 {
520 dounwind(-1); 558 dounwind (-1);/*D*//*remove*/
521 SvREFCNT_dec(PL_curstackinfo->si_stack); 559 SvREFCNT_dec (PL_curstackinfo->si_stack);
522 } 560 }
523 561
524 Safefree(PL_curstackinfo->si_cxstack); 562 Safefree (PL_curstackinfo->si_cxstack);
525 Safefree(PL_curstackinfo); 563 Safefree (PL_curstackinfo);
526 PL_curstackinfo = p; 564 PL_curstackinfo = p;
527 } 565 }
528 566
529 Safefree(PL_tmps_stack); 567 Safefree (PL_tmps_stack);
530 Safefree(PL_markstack); 568 Safefree (PL_markstack);
531 Safefree(PL_scopestack); 569 Safefree (PL_scopestack);
532 Safefree(PL_savestack); 570 Safefree (PL_savestack);
533 Safefree(PL_retstack); 571 Safefree (PL_retstack);
534} 572}
535 573
536static void 574static void
537allocate_stack (Coro__State ctx, int alloc) 575allocate_stack (Coro__State ctx, int alloc)
538{ 576{
… …
541 New (0, stack, 1, coro_stack); 579 New (0, stack, 1, coro_stack);
542 580
543 stack->refcnt = 1; 581 stack->refcnt = 1;
544 stack->usecnt = 1; 582 stack->usecnt = 1;
545 stack->gencnt = ctx->gencnt = 0; 583 stack->gencnt = ctx->gencnt = 0;
584
546 if (alloc) 585 if (alloc)
547 { 586 {
548#if HAVE_MMAP 587#if HAVE_MMAP
549 stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ 588 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_ANONYMOUS, 0, 0); 589 stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
551 if (stack->sptr == (void *)-1) 590 if (stack->sptr == (void *)-1)
552#endif 591#endif
553 { 592 {
554 /*FIXME*//*D*//* reasonable stack size! */ 593 /*FIXME*//*D*//* reasonable stack size! */
555 stack->ssize = -4096 * sizeof (long); 594 stack->ssize = - (8192 * sizeof (long));
556 New (0, stack->sptr, 4096, long); 595 New (0, stack->sptr, 8192, long);
557 } 596 }
558 } 597 }
559 else 598 else
560 stack->sptr = 0; 599 stack->sptr = 0;
561 600
… …
575 { 614 {
576#ifdef HAVE_MMAP 615#ifdef HAVE_MMAP
577 if (stack->ssize > 0 && stack->sptr) 616 if (stack->ssize > 0 && stack->sptr)
578 munmap (stack->sptr, stack->ssize); 617 munmap (stack->sptr, stack->ssize);
579 else 618 else
580#else 619#endif
581 Safefree (stack->sptr); 620 Safefree (stack->sptr);
582#endif 621
583 Safefree (stack); 622 Safefree (stack);
584 } 623 }
585 else if (ctx->gencnt == stack->gencnt) 624 else if (ctx->gencnt == stack->gencnt)
586 --stack->usecnt; 625 --stack->usecnt;
587 } 626 }
… …
591setup_coro (void *arg) 630setup_coro (void *arg)
592{ 631{
593 /* 632 /*
594 * emulate part of the perl startup here. 633 * emulate part of the perl startup here.
595 */ 634 */
635 dTHX;
596 dSP; 636 dSP;
597 Coro__State ctx = (Coro__State)arg; 637 Coro__State ctx = (Coro__State)arg;
598 SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); 638 SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE);
599 639
600 coro_init_stacks (aTHX); 640 coro_init_stacks (aTHX);
601 /*PL_curcop = 0;*/ 641 /*PL_curcop = 0;*/
602 /*PL_in_eval = PL_in_eval;*/ /* inherit */ 642 /*PL_in_eval = PL_in_eval;*/ /* inherit */
603 SvREFCNT_dec (GvAV (PL_defgv)); 643 SvREFCNT_dec (GvAV (PL_defgv));
604 GvAV (PL_defgv) = ctx->args; 644 GvAV (PL_defgv) = ctx->args; ctx->args = 0;
605 645
606 SPAGAIN; 646 SPAGAIN;
607 647
608 if (ctx->stack) 648 if (ctx->stack)
609 { 649 {
… …
636 * that doesn't matter, though, since it is only 676 * that doesn't matter, though, since it is only
637 * pp_nextstate and we never return... 677 * pp_nextstate and we never return...
638 * ah yes, and I don't care anyways ;) 678 * ah yes, and I don't care anyways ;)
639 */ 679 */
640 PUTBACK; 680 PUTBACK;
641 PL_op = pp_entersub(); 681 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
642 SPAGAIN; 682 SPAGAIN;
643 683
644 ENTER; /* necessary e.g. for dounwind */ 684 ENTER; /* necessary e.g. for dounwind */
645 } 685 }
646} 686}
… …
649continue_coro (void *arg) 689continue_coro (void *arg)
650{ 690{
651 /* 691 /*
652 * this is a _very_ stripped down perl interpreter ;) 692 * this is a _very_ stripped down perl interpreter ;)
653 */ 693 */
694 dTHX;
654 Coro__State ctx = (Coro__State)arg; 695 Coro__State ctx = (Coro__State)arg;
655 JMPENV coro_start_env; 696 JMPENV coro_start_env;
656 697
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; 698 PL_top_env = &ctx->start_env;
662 699
663 ctx->cursp = 0; 700 ctx->cursp = 0;
664 PL_op = PL_op->op_next; 701 PL_op = PL_op->op_next;
665 CALLRUNOPS(aTHX); 702 CALLRUNOPS(aTHX);
666 703
667 abort (); 704 abort ();
668} 705}
669 706
670STATIC void 707STATIC void
671transfer(pTHX_ struct coro *prev, struct coro *next, int flags) 708transfer (pTHX_ struct coro *prev, struct coro *next, int flags)
672{ 709{
673 dSTACKLEVEL; 710 dSTACKLEVEL;
674 static struct coro *xnext;
675 711
676 if (prev != next) 712 if (prev != next)
677 { 713 {
678 xnext = next;
679
680 if (next->mainstack) 714 if (next->mainstack)
681 { 715 {
716 LOCK;
682 SAVE (prev, flags); 717 SAVE (prev, flags);
683 LOAD (next); 718 LOAD (next);
719 UNLOCK;
684 720
685 /* mark this state as in-use */ 721 /* mark this state as in-use */
686 next->mainstack = 0; 722 next->mainstack = 0;
687 next->tmps_ix = -2; 723 next->tmps_ix = -2;
688 724
… …
707 continue_coro, (void *)next, 743 continue_coro, (void *)next,
708 next->stack->sptr, labs (next->stack->ssize)); 744 next->stack->sptr, labs (next->stack->ssize));
709 } 745 }
710 746
711 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 747 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
748 prev->cursp = stacklevel;
712 /* don't add any code here */ 749 /* don't add any code here */
713 } 750 }
714 751 else
752 next->cursp = stacklevel;
715 } 753 }
716 else if (next->tmps_ix == -2) 754 else if (next->tmps_ix == -2)
717 croak ("tried to transfer to running coroutine"); 755 croak ("tried to transfer to running coroutine");
718 else 756 else
719 { 757 {
758 LOCK;
720 SAVE (prev, -1); /* first get rid of the old state */ 759 SAVE (prev, -1); /* first get rid of the old state */
760 UNLOCK;
721 761
722 if (flags & TRANSFER_SAVE_CCTXT) 762 if (flags & TRANSFER_SAVE_CCTXT)
723 { 763 {
724 if (!prev->stack) 764 if (!prev->stack)
725 allocate_stack (prev, 0); 765 allocate_stack (prev, 0);
726 766
727 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) 767 if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
728 { 768 {
769 PL_top_env = &next->start_env;
770
729 setup_coro (next); 771 setup_coro (next);
772 next->cursp = stacklevel;
730 773
731 prev->stack->refcnt++; 774 prev->stack->refcnt++;
732 prev->stack->usecnt++; 775 prev->stack->usecnt++;
733 next->stack = prev->stack; 776 next->stack = prev->stack;
734 next->gencnt = prev->gencnt; 777 next->gencnt = prev->gencnt;
735 } 778 }
736 else 779 else
737 { 780 {
781 assert (!next->stack);
738 allocate_stack (next, 1); 782 allocate_stack (next, 1);
739 coro_create (&(next->stack->cctx), 783 coro_create (&(next->stack->cctx),
740 setup_coro, (void *)next, 784 setup_coro, (void *)next,
741 next->stack->sptr, labs (next->stack->ssize)); 785 next->stack->sptr, labs (next->stack->ssize));
742 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); 786 coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
787 prev->cursp = stacklevel;
743 /* don't add any code here */ 788 /* don't add any code here */
744 } 789 }
745 } 790 }
746 else 791 else
792 {
747 setup_coro (next); 793 setup_coro (next);
794 next->cursp = stacklevel;
795 }
748 } 796 }
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 } 797 }
757}
758 798
759static struct coro * 799 LOCK;
760sv_to_coro (SV *arg, const char *funcname, const char *varname) 800 if (coro_mortal)
761{
762 if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV)
763 { 801 {
764 HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); 802 SvREFCNT_dec (coro_mortal);
765 803 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 } 804 }
771 805 UNLOCK;
806}
807
808#define SV_CORO(sv,func) \
809 do { \
810 if (SvROK (sv)) \
811 sv = SvRV (sv); \
812 \
813 if (SvTYPE (sv) == SVt_PVHV) \
814 { \
815 HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \
816 \
817 if (!he) \
818 croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
819 \
820 (sv) = SvRV (HeVAL(he)); \
821 } \
822 \
772 /* must also be changed inside Coro::Cont::yield */ 823 /* must also be changed inside Coro::Cont::yield */ \
773 if (SvROK(arg) && SvOBJECT(SvRV(arg)) 824 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); 825 croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
778 /*NORETURN*/ 826 \
779} 827 } while(0)
828
829#define SvSTATE(sv) (struct coro *)SvIV (sv)
780 830
781static void 831static void
782api_transfer(pTHX_ SV *prev, SV *next, int flags) 832api_transfer(pTHX_ SV *prev, SV *next, int flags)
783{ 833{
784 transfer(aTHX_ 834 SV_CORO (prev, "Coro::transfer");
785 sv_to_coro (prev, "Coro::transfer", "prev"), 835 SV_CORO (next, "Coro::transfer");
786 sv_to_coro (next, "Coro::transfer", "next"), 836
787 flags); 837 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
788} 838}
789 839
790/** Coro ********************************************************************/ 840/** Coro ********************************************************************/
791 841
792#define PRIO_MAX 3 842#define PRIO_MAX 3
… …
800static GV *coro_current, *coro_idle; 850static GV *coro_current, *coro_idle;
801static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; 851static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
802static int coro_nready; 852static int coro_nready;
803 853
804static void 854static void
805coro_enq (SV *sv) 855coro_enq (pTHX_ SV *sv)
806{ 856{
807 if (SvROK (sv)) 857 if (SvTYPE (sv) == SVt_PVHV)
808 { 858 {
809 SV *hv = SvRV (sv);
810 if (SvTYPE (hv) == SVt_PVHV)
811 {
812 SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0); 859 SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0);
813 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; 860 int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
814 861
815 prio = prio > PRIO_MAX ? PRIO_MAX 862 prio = prio > PRIO_MAX ? PRIO_MAX
816 : prio < PRIO_MIN ? PRIO_MIN 863 : prio < PRIO_MIN ? PRIO_MIN
817 : prio; 864 : prio;
818 865
819 av_push (coro_ready [prio - PRIO_MIN], sv); 866 av_push (coro_ready [prio - PRIO_MIN], sv);
820 coro_nready++; 867 coro_nready++;
821 868
822 return; 869 return;
823 }
824 } 870 }
825 871
826 croak ("Coro::ready tried to enqueue something that is not a coroutine"); 872 croak ("Coro::ready tried to enqueue something that is not a coroutine");
827} 873}
828 874
829static SV * 875static SV *
830coro_deq (int min_prio) 876coro_deq (pTHX_ int min_prio)
831{ 877{
832 int prio = PRIO_MAX - PRIO_MIN; 878 int prio = PRIO_MAX - PRIO_MIN;
833 879
834 min_prio -= PRIO_MIN; 880 min_prio -= PRIO_MIN;
835 if (min_prio < 0) 881 if (min_prio < 0)
… …
846} 892}
847 893
848static void 894static void
849api_ready (SV *coro) 895api_ready (SV *coro)
850{ 896{
897 dTHX;
898
899 if (SvROK (coro))
900 coro = SvRV (coro);
901
902 LOCK;
851 coro_enq (SvREFCNT_inc (coro)); 903 coro_enq (aTHX_ SvREFCNT_inc (coro));
904 UNLOCK;
852} 905}
853 906
854static void 907static void
855api_schedule (int cede) 908api_schedule (void)
856{ 909{
910 dTHX;
911
857 SV *prev, *next; 912 SV *prev, *next;
858 913
914 LOCK;
915
859 prev = GvSV (coro_current); 916 prev = SvRV (GvSV (coro_current));
860
861 if (cede)
862 coro_enq (SvREFCNT_inc (prev));
863
864 next = coro_deq (PRIO_MIN); 917 next = coro_deq (aTHX_ PRIO_MIN);
865 918
866 if (!next) 919 if (!next)
867 next = SvREFCNT_inc (GvSV (coro_idle)); 920 next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
868 921
869 GvSV (coro_current) = SvREFCNT_inc (next); 922 /* free this only after the transfer */
870 transfer (aTHX_ 923 coro_mortal = prev;
871 sv_to_coro (prev, "Coro::schedule", "current coroutine"), 924 SV_CORO (prev, "Coro::schedule");
872 sv_to_coro (next, "Coro::schedule", "next coroutine"), 925
926 SvRV (GvSV (coro_current)) = next;
927
928 SV_CORO (next, "Coro::schedule");
929
930 UNLOCK;
931
932 transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
873 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); 933 TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK);
874 SvREFCNT_dec (next); 934}
875 SvREFCNT_dec (prev); 935
936static void
937api_cede (void)
938{
939 dTHX;
940
941 LOCK;
942 coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
943 UNLOCK;
944
945 api_schedule ();
876} 946}
877 947
878MODULE = Coro::State PACKAGE = Coro::State 948MODULE = Coro::State PACKAGE = Coro::State
879 949
880PROTOTYPES: ENABLE 950PROTOTYPES: ENABLE
881 951
882BOOT: 952BOOT:
883{ /* {} necessary for stoopid perl-5.6.x */ 953{ /* {} necessary for stoopid perl-5.6.x */
954#ifdef USE_ITHREADS
955 MUTEX_INIT (&coro_mutex);
956#endif
957
884 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); 958 ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
885 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); 959 PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
886 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 960 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
887 961
888 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 962 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
889 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 963 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
890 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 964 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
891 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); 965 newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
892
893 if (!padlist_cache)
894 padlist_cache = newHV ();
895 966
896 main_mainstack = PL_mainstack; 967 main_mainstack = PL_mainstack;
897 968
898 coroapi.ver = CORO_API_VERSION; 969 coroapi.ver = CORO_API_VERSION;
899 coroapi.transfer = api_transfer; 970 coroapi.transfer = api_transfer;
… …
907 Coro__State coro; 978 Coro__State coro;
908 979
909 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) 980 if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV)
910 croak ("Coro::State::_newprocess expects an arrayref"); 981 croak ("Coro::State::_newprocess expects an arrayref");
911 982
912 New (0, coro, 1, struct coro); 983 Newz (0, coro, 1, struct coro);
913 984
914 coro->args = (AV *)SvREFCNT_inc (SvRV (args)); 985 coro->args = (AV *)SvREFCNT_inc (SvRV (args));
915 coro->mainstack = 0; /* actual work is done inside transfer */ 986 /*coro->mainstack = 0; *//*actual work is done inside transfer */
916 coro->stack = 0; 987 /*coro->stack = 0;*/
988
989 /* same as JMPENV_BOOTSTRAP */
990 /* we might be able to recycle start_env, but safe is safe */
991 /*Zero(&coro->start_env, 1, JMPENV);*/
992 coro->start_env.je_ret = -1;
993 coro->start_env.je_mustcatch = TRUE;
917 994
918 RETVAL = coro; 995 RETVAL = coro;
919 OUTPUT: 996 OUTPUT:
920 RETVAL 997 RETVAL
921 998
922void 999void
923transfer(prev, next, flags) 1000transfer(prev, next, flags)
924 Coro::State_or_hashref prev 1001 SV *prev
925 Coro::State_or_hashref next 1002 SV *next
926 int flags 1003 int flags
927 PROTOTYPE: @ 1004 PROTOTYPE: @
928 CODE: 1005 CODE:
929 PUTBACK; 1006 PUTBACK;
1007 SV_CORO (next, "Coro::transfer");
1008 SV_CORO (prev, "Coro::transfer");
930 transfer (aTHX_ prev, next, flags); 1009 transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
931 SPAGAIN; 1010 SPAGAIN;
932 1011
933void 1012void
934DESTROY(coro) 1013DESTROY(coro)
935 Coro::State coro 1014 Coro::State coro
… …
938 if (coro->mainstack && coro->mainstack != main_mainstack) 1017 if (coro->mainstack && coro->mainstack != main_mainstack)
939 { 1018 {
940 struct coro temp; 1019 struct coro temp;
941 1020
942 PUTBACK; 1021 PUTBACK;
943 SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); 1022 SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
944 LOAD(aTHX_ coro); 1023 LOAD (aTHX_ coro);
945 SPAGAIN; 1024 SPAGAIN;
946 1025
947 destroy_stacks (aTHX); 1026 destroy_stacks (aTHX);
948 1027
949 LOAD((&temp)); /* this will get rid of defsv etc.. */ 1028 LOAD ((&temp)); /* this will get rid of defsv etc.. */
950 SPAGAIN; 1029 SPAGAIN;
951 1030
952 coro->mainstack = 0; 1031 coro->mainstack = 0;
953 } 1032 }
954 1033
955 deallocate_stack (coro); 1034 deallocate_stack (coro);
956 1035 SvREFCNT_dec (coro->args);
957 Safefree (coro); 1036 Safefree (coro);
958
959void
960flush()
961 CODE:
962#ifdef MAY_FLUSH
963 flush_padlist_cache ();
964#endif
965 1037
966void 1038void
967_exit(code) 1039_exit(code)
968 int code 1040 int code
969 PROTOTYPE: $ 1041 PROTOTYPE: $
970 CODE: 1042 CODE:
971#if defined(__GLIBC__) || _POSIX_C_SOURCE
972 _exit (code); 1043 _exit (code);
973#else
974 signal (SIGTERM, SIG_DFL);
975 raise (SIGTERM);
976 exit (code);
977#endif
978 1044
979MODULE = Coro::State PACKAGE = Coro::Cont 1045MODULE = Coro::State PACKAGE = Coro::Cont
980 1046
981# this is slightly dirty (should expose a c-level api) 1047# this is slightly dirty (should expose a c-level api)
982 1048
… …
988 SV *sv; 1054 SV *sv;
989 AV *defav = GvAV (PL_defgv); 1055 AV *defav = GvAV (PL_defgv);
990 struct coro *prev, *next; 1056 struct coro *prev, *next;
991 1057
992 if (!returnstk) 1058 if (!returnstk)
993 returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); 1059 returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
994 1060
995 /* set up @_ -- ugly */ 1061 /* set up @_ -- ugly */
996 av_clear (defav); 1062 av_clear (defav);
997 av_fill (defav, items - 1); 1063 av_fill (defav, items - 1);
998 while (items--) 1064 while (items--)
999 av_store (defav, items, SvREFCNT_inc (ST(items))); 1065 av_store (defav, items, SvREFCNT_inc (ST(items)));
1000 1066
1001 mg_get (returnstk); /* isn't documentation wrong for mg_get? */ 1067 SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
1002 sv = av_pop ((AV *)SvRV (returnstk)); 1068 sv = av_pop ((AV *)SvRV (returnstk));
1003 prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); 1069 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))); 1070 next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)));
1005 SvREFCNT_dec (sv); 1071 SvREFCNT_dec (sv);
1006 1072
1007 transfer(aTHX_ prev, next, 0); 1073 transfer (aTHX_ prev, next, 0);
1008 1074
1009MODULE = Coro::State PACKAGE = Coro 1075MODULE = Coro::State PACKAGE = Coro
1010 1076
1011# this is slightly dirty (should expose a c-level api) 1077# this is slightly dirty (should expose a c-level api)
1012 1078
… …
1030 1096
1031 { 1097 {
1032 SV *sv = perl_get_sv("Coro::API", 1); 1098 SV *sv = perl_get_sv("Coro::API", 1);
1033 1099
1034 coroapi.schedule = api_schedule; 1100 coroapi.schedule = api_schedule;
1101 coroapi.cede = api_cede;
1035 coroapi.ready = api_ready; 1102 coroapi.ready = api_ready;
1036 coroapi.nready = &coro_nready; 1103 coroapi.nready = &coro_nready;
1037 coroapi.current = coro_current; 1104 coroapi.current = coro_current;
1038 1105
1039 GCoroAPI = &coroapi; 1106 GCoroAPI = &coroapi;
1040 sv_setiv(sv, (IV)&coroapi); 1107 sv_setiv(sv, (IV)&coroapi);
1041 SvREADONLY_on(sv); 1108 SvREADONLY_on(sv);
1042 } 1109 }
1043} 1110}
1111
1112#if !PERL_MICRO
1044 1113
1045void 1114void
1046ready(self) 1115ready(self)
1047 SV * self 1116 SV * self
1048 PROTOTYPE: $ 1117 PROTOTYPE: $
1049 CODE: 1118 CODE:
1050 api_ready (self); 1119 api_ready (self);
1120
1121#endif
1051 1122
1052int 1123int
1053nready(...) 1124nready(...)
1054 PROTOTYPE: 1125 PROTOTYPE:
1055 CODE: 1126 CODE:
… …
1058 RETVAL 1129 RETVAL
1059 1130
1060void 1131void
1061schedule(...) 1132schedule(...)
1062 PROTOTYPE: 1133 PROTOTYPE:
1063 ALIAS:
1064 cede = 1
1065 CODE: 1134 CODE:
1066 api_schedule (ix); 1135 api_schedule ();
1067 1136
1137void
1138cede(...)
1139 PROTOTYPE:
1140 CODE:
1141 api_cede ();
1142

Diff Legend

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