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Comparing Coro/Coro/State.xs (file contents):
Revision 1.110 by root, Tue Nov 28 23:08:07 2006 UTC vs.
Revision 1.126 by root, Tue Dec 12 04:19:56 2006 UTC

… …
7#include "patchlevel.h" 7#include "patchlevel.h"
8 8
9#if USE_VALGRIND 9#if USE_VALGRIND
10# include <valgrind/valgrind.h> 10# include <valgrind/valgrind.h>
11#endif 11#endif
12
13/* the maximum number of idle cctx that will be pooled */
14#define MAX_IDLE_CCTX 8
12 15
13#define PERL_VERSION_ATLEAST(a,b,c) \ 16#define PERL_VERSION_ATLEAST(a,b,c) \
14 (PERL_REVISION > (a) \ 17 (PERL_REVISION > (a) \
15 || (PERL_REVISION == (a) \ 18 || (PERL_REVISION == (a) \
16 && (PERL_VERSION > (b) \ 19 && (PERL_VERSION > (b) \
… …
35# ifndef IS_PADCONST 38# ifndef IS_PADCONST
36# define IS_PADCONST(v) 0 39# define IS_PADCONST(v) 0
37# endif 40# endif
38#endif 41#endif
39 42
43/* 5.8.7 */
44#ifndef SvRV_set
45# define SvRV_set(s,v) SvRV(s) = (v)
46#endif
47
40#include <stdio.h> 48#include <stdio.h>
41#include <errno.h> 49#include <errno.h>
50#include <assert.h>
42 51
43#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 52#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
44# undef STACKGUARD 53# undef STACKGUARD
45#endif 54#endif
46 55
… …
87 96
88#define NOINLINE attribute ((noinline)) 97#define NOINLINE attribute ((noinline))
89 98
90#include "CoroAPI.h" 99#include "CoroAPI.h"
91 100
92#define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */
93
94#ifdef USE_ITHREADS 101#ifdef USE_ITHREADS
95static perl_mutex coro_mutex; 102static perl_mutex coro_mutex;
96# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 103# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
97# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 104# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
98#else 105#else
99# define LOCK (void)0 106# define LOCK (void)0
100# define UNLOCK (void)0 107# define UNLOCK (void)0
101#endif 108#endif
102 109
110struct io_state
111{
112 int errorno;
113 I32 laststype;
114 int laststatval;
115 Stat_t statcache;
116};
117
103static struct CoroAPI coroapi; 118static struct CoroAPI coroapi;
104static AV *main_mainstack; /* used to differentiate between $main and others */ 119static AV *main_mainstack; /* used to differentiate between $main and others */
105static HV *coro_state_stash, *coro_stash; 120static HV *coro_state_stash, *coro_stash;
106static SV *coro_mortal; /* will be freed after next transfer */ 121static SV *coro_mortal; /* will be freed after next transfer */
107 122
… …
119 /* cpu state */ 134 /* cpu state */
120 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 135 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
121 JMPENV *top_env; 136 JMPENV *top_env;
122 coro_context cctx; 137 coro_context cctx;
123 138
139 int inuse;
140
124#if USE_VALGRIND 141#if USE_VALGRIND
125 int valgrind_id; 142 int valgrind_id;
126#endif 143#endif
127} coro_cctx; 144} coro_cctx;
145
146enum {
147 CF_RUNNING = 0x0001, /* coroutine is running */
148 CF_READY = 0x0002, /* coroutine is ready */
149 CF_NEW = 0x0004, /* ahs never been switched to */
150};
128 151
129/* this is a structure representing a perl-level coroutine */ 152/* this is a structure representing a perl-level coroutine */
130struct coro { 153struct coro {
131 /* the c coroutine allocated to this perl coroutine, if any */ 154 /* the c coroutine allocated to this perl coroutine, if any */
132 coro_cctx *cctx; 155 coro_cctx *cctx;
133 156
134 /* data associated with this coroutine (initial args) */ 157 /* data associated with this coroutine (initial args) */
135 AV *args; 158 AV *args;
136 int refcnt; 159 int refcnt;
160 int save; /* CORO_SAVE flags */
161 int flags; /* CF_ flags */
137 162
138 /* optionally saved, might be zero */ 163 /* optionally saved, might be zero */
139 AV *defav; 164 AV *defav; /* @_ */
140 SV *defsv; 165 SV *defsv; /* $_ */
141 SV *errsv; 166 SV *errsv; /* $@ */
167 SV *irssv; /* $/ */
168 SV *irssv_sv; /* real $/ cache */
142 169
143#define VAR(name,type) type name; 170#define VAR(name,type) type name;
144# include "state.h" 171# include "state.h"
145#undef VAR 172#undef VAR
146 173
… …
269} 296}
270 297
271#define SB do { 298#define SB do {
272#define SE } while (0) 299#define SE } while (0)
273 300
274#define LOAD(state) load_state((state));
275#define SAVE(state,flags) save_state((state),(flags));
276
277#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE 301#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
278 302
279static void 303static void
280load_state(Coro__State c) 304load_perl (Coro__State c)
281{ 305{
282#define VAR(name,type) PL_ ## name = c->name; 306#define VAR(name,type) PL_ ## name = c->name;
283# include "state.h" 307# include "state.h"
284#undef VAR 308#undef VAR
285 309
286 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 310 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
287 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 311 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
288 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 312 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
313 if (c->irssv)
314 {
315 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
316 SvREFCNT_dec (c->irssv);
317 else
318 {
319 REPLACE_SV (PL_rs, c->irssv);
320 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
321 sv_setsv (c->irssv_sv, PL_rs);
322 }
323 }
289 324
290 { 325 {
291 dSP; 326 dSP;
292 CV *cv; 327 CV *cv;
293 328
… …
302 PUTBACK; 337 PUTBACK;
303 } 338 }
304} 339}
305 340
306static void 341static void
307save_state(Coro__State c, int flags) 342save_perl (Coro__State c)
308{ 343{
309 { 344 {
310 dSP; 345 dSP;
311 I32 cxix = cxstack_ix; 346 I32 cxix = cxstack_ix;
312 PERL_CONTEXT *ccstk = cxstack; 347 PERL_CONTEXT *ccstk = cxstack;
… …
315 /* 350 /*
316 * the worst thing you can imagine happens first - we have to save 351 * the worst thing you can imagine happens first - we have to save
317 * (and reinitialize) all cv's in the whole callchain :( 352 * (and reinitialize) all cv's in the whole callchain :(
318 */ 353 */
319 354
355 EXTEND (SP, 3 + 1);
320 PUSHs (Nullsv); 356 PUSHs (Nullsv);
321 /* this loop was inspired by pp_caller */ 357 /* this loop was inspired by pp_caller */
322 for (;;) 358 for (;;)
323 { 359 {
324 while (cxix >= 0) 360 while (cxix >= 0)
325 { 361 {
326 PERL_CONTEXT *cx = &ccstk[cxix--]; 362 PERL_CONTEXT *cx = &ccstk[cxix--];
327 363
328 if (CxTYPE(cx) == CXt_SUB) 364 if (CxTYPE (cx) == CXt_SUB)
329 { 365 {
330 CV *cv = cx->blk_sub.cv; 366 CV *cv = cx->blk_sub.cv;
331 367
332 if (CvDEPTH (cv)) 368 if (CvDEPTH (cv))
333 { 369 {
334 EXTEND (SP, 3); 370 EXTEND (SP, 3);
335
336 PUSHs ((SV *)CvPADLIST(cv)); 371 PUSHs ((SV *)CvPADLIST (cv));
337 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 372 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
338 PUSHs ((SV *)cv); 373 PUSHs ((SV *)cv);
339 374
340 CvDEPTH (cv) = 0; 375 CvDEPTH (cv) = 0;
341 get_padlist (cv); 376 get_padlist (cv);
342 } 377 }
343 } 378 }
344#ifdef CXt_FORMAT
345 else if (CxTYPE(cx) == CXt_FORMAT)
346 {
347 /* I never used formats, so how should I know how these are implemented? */
348 /* my bold guess is as a simple, plain sub... */
349 croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
350 }
351#endif
352 } 379 }
353 380
354 if (top_si->si_type == PERLSI_MAIN) 381 if (top_si->si_type == PERLSI_MAIN)
355 break; 382 break;
356 383
… …
360 } 387 }
361 388
362 PUTBACK; 389 PUTBACK;
363 } 390 }
364 391
365 c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 392 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
366 c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 393 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
367 c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 394 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
395 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
368 396
369#define VAR(name,type)c->name = PL_ ## name; 397#define VAR(name,type)c->name = PL_ ## name;
370# include "state.h" 398# include "state.h"
371#undef VAR 399#undef VAR
372} 400}
… …
375 * allocate various perl stacks. This is an exact copy 403 * allocate various perl stacks. This is an exact copy
376 * of perl.c:init_stacks, except that it uses less memory 404 * of perl.c:init_stacks, except that it uses less memory
377 * on the (sometimes correct) assumption that coroutines do 405 * on the (sometimes correct) assumption that coroutines do
378 * not usually need a lot of stackspace. 406 * not usually need a lot of stackspace.
379 */ 407 */
408#if USE_PERL_INIT_STACKS
409# define coro_init_stacks init_stacks
410#else
411
380static void 412static void
381coro_init_stacks () 413coro_init_stacks ()
382{ 414{
383 PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); 415 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT));
384 PL_curstackinfo->si_type = PERLSI_MAIN; 416 PL_curstackinfo->si_type = PERLSI_MAIN;
385 PL_curstack = PL_curstackinfo->si_stack; 417 PL_curstack = PL_curstackinfo->si_stack;
386 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 418 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
387 419
388 PL_stack_base = AvARRAY(PL_curstack); 420 PL_stack_base = AvARRAY(PL_curstack);
389 PL_stack_sp = PL_stack_base; 421 PL_stack_sp = PL_stack_base;
390 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 422 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
391 423
392 New(50,PL_tmps_stack,96,SV*); 424 New(50,PL_tmps_stack,128,SV*);
393 PL_tmps_floor = -1; 425 PL_tmps_floor = -1;
394 PL_tmps_ix = -1; 426 PL_tmps_ix = -1;
395 PL_tmps_max = 96; 427 PL_tmps_max = 128;
396 428
397 New(54,PL_markstack,16,I32); 429 New(54,PL_markstack,32,I32);
398 PL_markstack_ptr = PL_markstack; 430 PL_markstack_ptr = PL_markstack;
399 PL_markstack_max = PL_markstack + 16; 431 PL_markstack_max = PL_markstack + 32;
400 432
401#ifdef SET_MARK_OFFSET 433#ifdef SET_MARK_OFFSET
402 SET_MARK_OFFSET; 434 SET_MARK_OFFSET;
403#endif 435#endif
404 436
405 New(54,PL_scopestack,16,I32); 437 New(54,PL_scopestack,32,I32);
406 PL_scopestack_ix = 0; 438 PL_scopestack_ix = 0;
407 PL_scopestack_max = 16; 439 PL_scopestack_max = 32;
408 440
409 New(54,PL_savestack,96,ANY); 441 New(54,PL_savestack,64,ANY);
410 PL_savestack_ix = 0; 442 PL_savestack_ix = 0;
411 PL_savestack_max = 96; 443 PL_savestack_max = 64;
412 444
413#if !PERL_VERSION_ATLEAST (5,9,0) 445#if !PERL_VERSION_ATLEAST (5,9,0)
414 New(54,PL_retstack,8,OP*); 446 New(54,PL_retstack,16,OP*);
415 PL_retstack_ix = 0; 447 PL_retstack_ix = 0;
416 PL_retstack_max = 8; 448 PL_retstack_max = 16;
417#endif 449#endif
418} 450}
419 451
420/* 452/*
421 * destroy the stacks, the callchain etc... 453 * destroy the stacks, the callchain etc...
… …
423static void 455static void
424coro_destroy_stacks () 456coro_destroy_stacks ()
425{ 457{
426 if (!IN_DESTRUCT) 458 if (!IN_DESTRUCT)
427 { 459 {
428 /* is this ugly, I ask? */ 460 /* restore all saved variables and stuff */
429 LEAVE_SCOPE (0); 461 LEAVE_SCOPE (0);
462 assert (PL_tmps_floor == -1);
430 463
431 /* sure it is, but more important: is it correct?? :/ */ 464 /* free all temporaries */
432 FREETMPS; 465 FREETMPS;
466 assert (PL_tmps_ix == -1);
433 467
434 /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ 468 POPSTACK_TO (PL_mainstack);
435 } 469 }
436 470
437 while (PL_curstackinfo->si_next) 471 while (PL_curstackinfo->si_next)
438 PL_curstackinfo = PL_curstackinfo->si_next; 472 PL_curstackinfo = PL_curstackinfo->si_next;
439 473
440 while (PL_curstackinfo) 474 while (PL_curstackinfo)
441 { 475 {
442 PERL_SI *p = PL_curstackinfo->si_prev; 476 PERL_SI *p = PL_curstackinfo->si_prev;
443 477
444 { /*D*//*remove*/
445 dSP;
446 SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
447 PUTBACK; /* possibly superfluous */
448 }
449
450 if (!IN_DESTRUCT) 478 if (!IN_DESTRUCT)
451 {
452 dounwind (-1);/*D*//*remove*/
453 SvREFCNT_dec (PL_curstackinfo->si_stack); 479 SvREFCNT_dec (PL_curstackinfo->si_stack);
454 }
455 480
456 Safefree (PL_curstackinfo->si_cxstack); 481 Safefree (PL_curstackinfo->si_cxstack);
457 Safefree (PL_curstackinfo); 482 Safefree (PL_curstackinfo);
458 PL_curstackinfo = p; 483 PL_curstackinfo = p;
459 } 484 }
… …
464 Safefree (PL_savestack); 489 Safefree (PL_savestack);
465#if !PERL_VERSION_ATLEAST (5,9,0) 490#if !PERL_VERSION_ATLEAST (5,9,0)
466 Safefree (PL_retstack); 491 Safefree (PL_retstack);
467#endif 492#endif
468} 493}
494#endif
469 495
470static void 496static void
471setup_coro (struct coro *coro) 497setup_coro (struct coro *coro)
472{ 498{
473 /* 499 /*
474 * emulate part of the perl startup here. 500 * emulate part of the perl startup here.
475 */ 501 */
476 502
477 coro_init_stacks (); 503 coro_init_stacks ();
478 504
479 PL_curcop = 0; 505 PL_curcop = &PL_compiling;
480 PL_in_eval = 0; 506 PL_in_eval = EVAL_NULL;
481 PL_curpm = 0; 507 PL_curpm = 0;
508 PL_localizing = 0;
509 PL_dirty = 0;
510 PL_restartop = 0;
482 511
483 { 512 {
484 dSP; 513 dSP;
485 LOGOP myop; 514 LOGOP myop;
486 515
487 /* I have no idea why this is needed, but it is */
488 PUSHMARK (SP);
489
490 SvREFCNT_dec (GvAV (PL_defgv)); 516 SvREFCNT_dec (GvAV (PL_defgv));
491 GvAV (PL_defgv) = coro->args; coro->args = 0; 517 GvAV (PL_defgv) = coro->args; coro->args = 0;
492 518
493 Zero (&myop, 1, LOGOP); 519 Zero (&myop, 1, LOGOP);
494 myop.op_next = Nullop; 520 myop.op_next = Nullop;
495 myop.op_flags = OPf_WANT_VOID; 521 myop.op_flags = OPf_WANT_VOID;
496 522
497 PL_op = (OP *)&myop;
498
499 PUSHMARK (SP); 523 PUSHMARK (SP);
500 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 524 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE));
501 PUTBACK; 525 PUTBACK;
526 PL_op = (OP *)&myop;
502 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 527 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
503 SPAGAIN; 528 SPAGAIN;
504
505 ENTER; /* necessary e.g. for dounwind */
506 } 529 }
530
531 ENTER; /* necessary e.g. for dounwind */
507} 532}
508 533
509static void 534static void
510free_coro_mortal () 535free_coro_mortal ()
511{ 536{
… …
514 SvREFCNT_dec (coro_mortal); 539 SvREFCNT_dec (coro_mortal);
515 coro_mortal = 0; 540 coro_mortal = 0;
516 } 541 }
517} 542}
518 543
544/* inject a fake call to Coro::State::_cctx_init into the execution */
519static void NOINLINE 545static void NOINLINE
520prepare_cctx (coro_cctx *cctx) 546prepare_cctx (coro_cctx *cctx)
521{ 547{
522 dSP; 548 dSP;
523 LOGOP myop; 549 LOGOP myop;
524 550
525 Zero (&myop, 1, LOGOP); 551 Zero (&myop, 1, LOGOP);
526 myop.op_next = PL_op; 552 myop.op_next = PL_op;
527 myop.op_flags = OPf_WANT_VOID; 553 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
528
529 sv_setiv (get_sv ("Coro::State::_cctx", FALSE), PTR2IV (cctx));
530 554
531 PUSHMARK (SP); 555 PUSHMARK (SP);
556 EXTEND (SP, 2);
557 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx))));
532 XPUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 558 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
533 PUTBACK; 559 PUTBACK;
560 PL_op = (OP *)&myop;
534 PL_restartop = PL_ppaddr[OP_ENTERSUB](aTHX); 561 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
535 SPAGAIN; 562 SPAGAIN;
536} 563}
537 564
538static void 565static void
539coro_run (void *arg) 566coro_run (void *arg)
540{ 567{
541 /* coro_run is the alternative epilogue of transfer() */ 568 /* coro_run is the alternative tail of transfer(), so unlock here. */
542 UNLOCK; 569 UNLOCK;
543 570
544 /* 571 /*
545 * this is a _very_ stripped down perl interpreter ;) 572 * this is a _very_ stripped down perl interpreter ;)
546 */ 573 */
… …
548 575
549 /* inject call to cctx_init */ 576 /* inject call to cctx_init */
550 prepare_cctx ((coro_cctx *)arg); 577 prepare_cctx ((coro_cctx *)arg);
551 578
552 /* somebody will hit me for both perl_run and PL_restartop */ 579 /* somebody will hit me for both perl_run and PL_restartop */
580 PL_restartop = PL_op;
553 perl_run (PL_curinterp); 581 perl_run (PL_curinterp);
554 582
555 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 583 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr);
556 abort (); 584 abort ();
557} 585}
… …
561{ 589{
562 coro_cctx *cctx; 590 coro_cctx *cctx;
563 591
564 ++cctx_count; 592 ++cctx_count;
565 593
566 New (0, cctx, 1, coro_cctx); 594 Newz (0, cctx, 1, coro_cctx);
567 595
568#if HAVE_MMAP 596#if HAVE_MMAP
569 597
570 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; 598 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE;
571 /* mmap suppsedly does allocate-on-write for us */ 599 /* mmap supposedly does allocate-on-write for us */
572 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 600 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
573 601
574 if (cctx->sptr == (void *)-1) 602 if (cctx->sptr == (void *)-1)
575 { 603 {
576 perror ("FATAL: unable to mmap stack for coroutine"); 604 perror ("FATAL: unable to mmap stack for coroutine");
… …
605 633
606 return cctx; 634 return cctx;
607} 635}
608 636
609static void 637static void
610cctx_free (coro_cctx *cctx) 638cctx_destroy (coro_cctx *cctx)
611{ 639{
612 if (!cctx) 640 if (!cctx)
613 return; 641 return;
614 642
615 --cctx_count; 643 --cctx_count;
… …
632{ 660{
633 coro_cctx *cctx; 661 coro_cctx *cctx;
634 662
635 if (cctx_first) 663 if (cctx_first)
636 { 664 {
637 --cctx_idle;
638 cctx = cctx_first; 665 cctx = cctx_first;
639 cctx_first = cctx->next; 666 cctx_first = cctx->next;
667 --cctx_idle;
640 } 668 }
641 else 669 else
642 { 670 {
643 cctx = cctx_new (); 671 cctx = cctx_new ();
644 PL_op = PL_op->op_next; 672 PL_op = PL_op->op_next;
… …
648} 676}
649 677
650static void 678static void
651cctx_put (coro_cctx *cctx) 679cctx_put (coro_cctx *cctx)
652{ 680{
681 /* free another cctx if overlimit */
682 if (cctx_idle >= MAX_IDLE_CCTX)
683 {
684 coro_cctx *first = cctx_first;
685 cctx_first = first->next;
686 --cctx_idle;
687
688 assert (!first->inuse);
689 cctx_destroy (first);
690 }
691
653 ++cctx_idle; 692 ++cctx_idle;
654 cctx->next = cctx_first; 693 cctx->next = cctx_first;
655 cctx_first = cctx; 694 cctx_first = cctx;
656} 695}
657 696
658/* never call directly, always through the coro_state_transfer global variable */ 697/* never call directly, always through the coro_state_transfer global variable */
659static void NOINLINE 698static void NOINLINE
660transfer (struct coro *prev, struct coro *next, int flags) 699transfer (struct coro *prev, struct coro *next)
661{ 700{
662 dSTACKLEVEL; 701 dSTACKLEVEL;
663 702
664 /* sometimes transfer is only called to set idle_sp */ 703 /* sometimes transfer is only called to set idle_sp */
665 if (flags == TRANSFER_SET_STACKLEVEL) 704 if (!next)
705 {
666 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 706 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
707 assert (((coro_cctx *)prev)->top_env = PL_top_env); /* just for the side effetc when assert is enabled */
708 }
667 else if (prev != next) 709 else if (prev != next)
668 { 710 {
669 coro_cctx *prev__cctx; 711 coro_cctx *prev__cctx;
670 712
713 if (prev->flags & CF_NEW)
714 {
715 /* create a new empty context */
716 Newz (0, prev->cctx, 1, coro_cctx);
717 prev->cctx->inuse = 1;
718 prev->flags &= ~CF_NEW;
719 prev->flags |= CF_RUNNING;
720 }
721
722 /*TODO: must not croak here */
723 if (!prev->flags & CF_RUNNING)
724 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
725
726 if (next->flags & CF_RUNNING)
727 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
728
729 prev->flags &= ~CF_RUNNING;
730 next->flags |= CF_RUNNING;
731
671 LOCK; 732 LOCK;
672 733
673 if (next->mainstack) 734 if (next->flags & CF_NEW)
674 { 735 {
675 /* coroutine already started */ 736 /* need to start coroutine */
676 SAVE (prev, flags); 737 next->flags &= ~CF_NEW;
677 LOAD (next); 738 /* first get rid of the old state */
739 save_perl (prev);
740 /* setup coroutine call */
741 setup_coro (next);
742 /* need a new stack */
743 assert (!next->cctx);
678 } 744 }
679 else 745 else
680 { 746 {
681 /* need to start coroutine */ 747 /* coroutine already started */
682 /* first get rid of the old state */ 748 save_perl (prev);
683 SAVE (prev, -1); 749 load_perl (next);
684 /* setup coroutine call */
685 setup_coro (next);
686 /* need a stack */
687 next->cctx = 0;
688 } 750 }
689
690 if (!prev->cctx)
691 /* create a new empty context */
692 Newz (0, prev->cctx, 1, coro_cctx);
693 751
694 prev__cctx = prev->cctx; 752 prev__cctx = prev->cctx;
695 753
696 /* possibly "free" the cctx */ 754 /* possibly "free" the cctx */
697 if (prev__cctx->idle_sp == STACKLEVEL) 755 if (prev__cctx->idle_sp == STACKLEVEL)
698 { 756 {
757 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
699 assert (PL_top_env == prev__cctx->top_env);//D 758 assert (PL_top_env == prev__cctx->top_env);
759
760 prev->cctx = 0;
761
700 cctx_put (prev__cctx); 762 cctx_put (prev__cctx);
701 prev->cctx = 0; 763 prev__cctx->inuse = 0;
702 } 764 }
703 765
704 if (!next->cctx) 766 if (!next->cctx)
767 {
705 next->cctx = cctx_get (); 768 next->cctx = cctx_get ();
769 assert (!next->cctx->inuse);
770 next->cctx->inuse = 1;
771 }
706 772
707 if (prev__cctx != next->cctx) 773 if (prev__cctx != next->cctx)
708 { 774 {
709 prev__cctx->top_env = PL_top_env; 775 prev__cctx->top_env = PL_top_env;
710 PL_top_env = next->cctx->top_env; 776 PL_top_env = next->cctx->top_env;
… …
718} 784}
719 785
720struct transfer_args 786struct transfer_args
721{ 787{
722 struct coro *prev, *next; 788 struct coro *prev, *next;
723 int flags;
724}; 789};
725 790
726#define TRANSFER(ta) transfer ((ta).prev, (ta).next, (ta).flags) 791#define TRANSFER(ta) transfer ((ta).prev, (ta).next)
727 792
728static void 793static void
729coro_state_destroy (struct coro *coro) 794coro_state_destroy (struct coro *coro)
730{ 795{
731 if (coro->refcnt--) 796 if (coro->refcnt--)
732 return; 797 return;
733 798
734 if (coro->mainstack && coro->mainstack != main_mainstack) 799 if (coro->mainstack && coro->mainstack != main_mainstack)
735 { 800 {
736 struct coro temp; 801 struct coro temp;
802 Zero (&temp, 1, struct coro);
803 temp.save = CORO_SAVE_ALL;
737 804
738 SAVE ((&temp), TRANSFER_SAVE_ALL); 805 if (coro->flags & CF_RUNNING)
739 LOAD (coro); 806 croak ("FATAL: tried to destroy currently running coroutine");
807
808 save_perl (&temp);
809 load_perl (coro);
740 810
741 coro_destroy_stacks (); 811 coro_destroy_stacks ();
742 812
743 LOAD ((&temp)); /* this will get rid of defsv etc.. */ 813 load_perl (&temp); /* this will get rid of defsv etc.. */
744 814
745 coro->mainstack = 0; 815 coro->mainstack = 0;
746 } 816 }
747 817
748 cctx_free (coro->cctx); 818 cctx_destroy (coro->cctx);
749 SvREFCNT_dec (coro->args); 819 SvREFCNT_dec (coro->args);
750 Safefree (coro); 820 Safefree (coro);
751} 821}
752 822
753static int 823static int
… …
803 assert (mg->mg_type == PERL_MAGIC_ext); 873 assert (mg->mg_type == PERL_MAGIC_ext);
804 return (struct coro *)mg->mg_ptr; 874 return (struct coro *)mg->mg_ptr;
805} 875}
806 876
807static void 877static void
808prepare_transfer (struct transfer_args *ta, SV *prev, SV *next, int flags) 878prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv)
809{ 879{
810 ta->prev = SvSTATE (prev); 880 ta->prev = SvSTATE (prev_sv);
811 ta->next = SvSTATE (next); 881 ta->next = SvSTATE (next_sv);
812 ta->flags = flags;
813} 882}
814 883
815static void 884static void
816api_transfer (SV *prev, SV *next, int flags) 885api_transfer (SV *prev_sv, SV *next_sv)
817{ 886{
818 dTHX;
819 struct transfer_args ta; 887 struct transfer_args ta;
820 888
821 prepare_transfer (&ta, prev, next, flags); 889 prepare_transfer (&ta, prev_sv, next_sv);
822 TRANSFER (ta); 890 TRANSFER (ta);
891}
892
893static int
894api_save (SV *coro_sv, int new_save)
895{
896 struct coro *coro = SvSTATE (coro_sv);
897 int old_save = coro->save;
898
899 if (new_save >= 0)
900 coro->save = new_save;
901
902 return old_save;
823} 903}
824 904
825/** Coro ********************************************************************/ 905/** Coro ********************************************************************/
826 906
827#define PRIO_MAX 3 907#define PRIO_MAX 3
… …
830#define PRIO_LOW -1 910#define PRIO_LOW -1
831#define PRIO_IDLE -3 911#define PRIO_IDLE -3
832#define PRIO_MIN -4 912#define PRIO_MIN -4
833 913
834/* for Coro.pm */ 914/* for Coro.pm */
835static GV *coro_current, *coro_idle; 915static SV *coro_current;
836static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 916static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
837static int coro_nready; 917static int coro_nready;
838 918
839static void 919static void
840coro_enq (SV *sv) 920coro_enq (SV *coro_sv)
841{ 921{
842 int prio;
843
844 if (SvTYPE (sv) != SVt_PVHV)
845 croak ("Coro::ready tried to enqueue something that is not a coroutine");
846
847 prio = SvSTATE (sv)->prio;
848
849 av_push (coro_ready [prio - PRIO_MIN], sv); 922 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
850 coro_nready++; 923 coro_nready++;
851} 924}
852 925
853static SV * 926static SV *
854coro_deq (int min_prio) 927coro_deq (int min_prio)
… …
867 } 940 }
868 941
869 return 0; 942 return 0;
870} 943}
871 944
872static void 945static int
873api_ready (SV *coro) 946api_ready (SV *coro_sv)
874{ 947{
875 dTHX; 948 struct coro *coro;
876 949
877 if (SvROK (coro)) 950 if (SvROK (coro_sv))
878 coro = SvRV (coro); 951 coro_sv = SvRV (coro_sv);
952
953 coro = SvSTATE (coro_sv);
954
955 if (coro->flags & CF_READY)
956 return 0;
957
958#if 0 /* this is actually harmless */
959 if (coro->flags & CF_RUNNING)
960 croak ("Coro::ready called on currently running coroutine");
961#endif
962
963 coro->flags |= CF_READY;
879 964
880 LOCK; 965 LOCK;
881 coro_enq (SvREFCNT_inc (coro)); 966 coro_enq (SvREFCNT_inc (coro_sv));
882 UNLOCK; 967 UNLOCK;
968
969 return 1;
970}
971
972static int
973api_is_ready (SV *coro_sv)
974{
975 return !!SvSTATE (coro_sv)->flags & CF_READY;
883} 976}
884 977
885static void 978static void
886prepare_schedule (struct transfer_args *ta) 979prepare_schedule (struct transfer_args *ta)
887{ 980{
888 SV *current, *prev, *next; 981 SV *prev, *next;
889
890 current = GvSV (coro_current);
891 982
892 for (;;) 983 for (;;)
893 { 984 {
894 LOCK; 985 LOCK;
895 next = coro_deq (PRIO_MIN); 986 next = coro_deq (PRIO_MIN);
… …
904 ENTER; 995 ENTER;
905 SAVETMPS; 996 SAVETMPS;
906 997
907 PUSHMARK (SP); 998 PUSHMARK (SP);
908 PUTBACK; 999 PUTBACK;
909 call_sv (GvSV (coro_idle), G_DISCARD); 1000 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
910 1001
911 FREETMPS; 1002 FREETMPS;
912 LEAVE; 1003 LEAVE;
913 } 1004 }
914 } 1005 }
915 1006
916 prev = SvRV (current); 1007 prev = SvRV (coro_current);
917 SvRV (current) = next; 1008 SvRV_set (coro_current, next);
918 1009
919 /* free this only after the transfer */ 1010 /* free this only after the transfer */
920 LOCK; 1011 LOCK;
921 free_coro_mortal (); 1012 free_coro_mortal ();
922 UNLOCK; 1013 UNLOCK;
923 coro_mortal = prev; 1014 coro_mortal = prev;
924 1015
1016 assert (!SvROK(prev));//D
1017 assert (!SvROK(next));//D
1018
925 ta->prev = SvSTATE (prev); 1019 ta->prev = SvSTATE (prev);
926 ta->next = SvSTATE (next); 1020 ta->next = SvSTATE (next);
927 ta->flags = TRANSFER_SAVE_ALL; 1021
1022 assert (ta->next->flags & CF_READY);
1023 ta->next->flags &= ~CF_READY;
928} 1024}
929 1025
930static void 1026static void
931prepare_cede (struct transfer_args *ta) 1027prepare_cede (struct transfer_args *ta)
932{ 1028{
933 LOCK; 1029 api_ready (coro_current);
934 coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current))));
935 UNLOCK;
936 1030
937 prepare_schedule (ta); 1031 prepare_schedule (ta);
938} 1032}
939 1033
940static void 1034static void
941api_schedule (void) 1035api_schedule (void)
942{ 1036{
943 dTHX;
944 struct transfer_args ta; 1037 struct transfer_args ta;
945 1038
946 prepare_schedule (&ta); 1039 prepare_schedule (&ta);
947 TRANSFER (ta); 1040 TRANSFER (ta);
948} 1041}
949 1042
950static void 1043static void
951api_cede (void) 1044api_cede (void)
952{ 1045{
953 dTHX;
954 struct transfer_args ta; 1046 struct transfer_args ta;
955 1047
956 prepare_cede (&ta); 1048 prepare_cede (&ta);
957 TRANSFER (ta); 1049 TRANSFER (ta);
958} 1050}
… …
968#endif 1060#endif
969 BOOT_PAGESIZE; 1061 BOOT_PAGESIZE;
970 1062
971 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1063 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
972 1064
973 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); 1065 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
974 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); 1066 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
975 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); 1067 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1068 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1069 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
976 1070
977 main_mainstack = PL_mainstack; 1071 main_mainstack = PL_mainstack;
978 1072
979 coroapi.ver = CORO_API_VERSION; 1073 coroapi.ver = CORO_API_VERSION;
980 coroapi.transfer = api_transfer; 1074 coroapi.transfer = api_transfer;
… …
990 HV *hv; 1084 HV *hv;
991 int i; 1085 int i;
992 1086
993 Newz (0, coro, 1, struct coro); 1087 Newz (0, coro, 1, struct coro);
994 coro->args = newAV (); 1088 coro->args = newAV ();
1089 coro->save = CORO_SAVE_ALL;
1090 coro->flags = CF_NEW;
995 1091
996 hv = newHV (); 1092 hv = newHV ();
997 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1093 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
998 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1094 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
999 1095
1000 for (i = 1; i < items; i++) 1096 for (i = 1; i < items; i++)
1001 av_push (coro->args, newSVsv (ST (i))); 1097 av_push (coro->args, newSVsv (ST (i)));
1002} 1098}
1003 OUTPUT: 1099 OUTPUT:
1100 RETVAL
1101
1102int
1103save (SV *coro, int new_save = -1)
1104 CODE:
1105 RETVAL = api_save (coro, new_save);
1106 OUTPUT:
1004 RETVAL 1107 RETVAL
1005 1108
1006void 1109void
1007_set_stacklevel (...) 1110_set_stacklevel (...)
1008 ALIAS: 1111 ALIAS:
1009 Coro::State::transfer = 1 1112 Coro::State::transfer = 1
1010 Coro::schedule = 2 1113 Coro::schedule = 2
1011 Coro::cede = 3 1114 Coro::cede = 3
1012 Coro::Cont::yield = 4
1013 CODE: 1115 CODE:
1014{ 1116{
1015 struct transfer_args ta; 1117 struct transfer_args ta;
1016 1118
1017 switch (ix) 1119 switch (ix)
1018 { 1120 {
1019 case 0: 1121 case 0:
1020 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); 1122 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1021 ta.next = 0; 1123 ta.next = 0;
1022 ta.flags = TRANSFER_SET_STACKLEVEL;
1023 break; 1124 break;
1024 1125
1025 case 1: 1126 case 1:
1026 if (items != 3) 1127 if (items != 2)
1027 croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); 1128 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1028 1129
1029 prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); 1130 prepare_transfer (&ta, ST (0), ST (1));
1030 break; 1131 break;
1031 1132
1032 case 2: 1133 case 2:
1033 prepare_schedule (&ta); 1134 prepare_schedule (&ta);
1034 break; 1135 break;
1035 1136
1036 case 3: 1137 case 3:
1037 prepare_cede (&ta); 1138 prepare_cede (&ta);
1038 break; 1139 break;
1039
1040 case 4:
1041 {
1042 SV *yieldstack;
1043 SV *sv;
1044 AV *defav = GvAV (PL_defgv);
1045
1046 yieldstack = *hv_fetch (
1047 (HV *)SvRV (GvSV (coro_current)),
1048 "yieldstack", sizeof ("yieldstack") - 1,
1049 0
1050 );
1051
1052 /* set up @_ -- ugly */
1053 av_clear (defav);
1054 av_fill (defav, items - 1);
1055 while (items--)
1056 av_store (defav, items, SvREFCNT_inc (ST(items)));
1057
1058 sv = av_pop ((AV *)SvRV (yieldstack));
1059 ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0));
1060 ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0));
1061 ta.flags = 0;
1062 SvREFCNT_dec (sv);
1063 }
1064 break;
1065
1066 } 1140 }
1067 1141
1068 TRANSFER (ta); 1142 TRANSFER (ta);
1069} 1143}
1070 1144
… …
1114 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1188 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1115 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1189 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1116 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1190 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1117 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1191 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1118 1192
1119 coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); 1193 coro_current = get_sv ("Coro::current", FALSE);
1120 coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); 1194 SvREADONLY_on (coro_current);
1121 1195
1122 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1196 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1123 coro_ready[i] = newAV (); 1197 coro_ready[i] = newAV ();
1124 1198
1125 { 1199 {
1126 SV *sv = perl_get_sv("Coro::API", 1); 1200 SV *sv = perl_get_sv("Coro::API", 1);
1127 1201
1128 coroapi.schedule = api_schedule; 1202 coroapi.schedule = api_schedule;
1203 coroapi.save = api_save;
1129 coroapi.cede = api_cede; 1204 coroapi.cede = api_cede;
1130 coroapi.ready = api_ready; 1205 coroapi.ready = api_ready;
1206 coroapi.is_ready = api_is_ready;
1131 coroapi.nready = &coro_nready; 1207 coroapi.nready = &coro_nready;
1132 coroapi.current = coro_current; 1208 coroapi.current = coro_current;
1133 1209
1134 GCoroAPI = &coroapi; 1210 GCoroAPI = &coroapi;
1135 sv_setiv (sv, (IV)&coroapi); 1211 sv_setiv (sv, (IV)&coroapi);
1136 SvREADONLY_on (sv); 1212 SvREADONLY_on (sv);
1137 } 1213 }
1138} 1214}
1215
1216void
1217_set_current (SV *current)
1218 PROTOTYPE: $
1219 CODE:
1220 SvREFCNT_dec (SvRV (coro_current));
1221 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current)));
1139 1222
1140int 1223int
1141prio (Coro::State coro, int newprio = 0) 1224prio (Coro::State coro, int newprio = 0)
1142 ALIAS: 1225 ALIAS:
1143 nice = 1 1226 nice = 1
… …
1155 1238
1156 coro->prio = newprio; 1239 coro->prio = newprio;
1157 } 1240 }
1158} 1241}
1159 1242
1160void 1243SV *
1161ready (SV *self) 1244ready (SV *self)
1162 PROTOTYPE: $ 1245 PROTOTYPE: $
1163 CODE: 1246 CODE:
1164 api_ready (self); 1247 RETVAL = boolSV (api_ready (self));
1248 OUTPUT:
1249 RETVAL
1250
1251SV *
1252is_ready (SV *self)
1253 PROTOTYPE: $
1254 CODE:
1255 RETVAL = boolSV (api_is_ready (self));
1256 OUTPUT:
1257 RETVAL
1165 1258
1166int 1259int
1167nready (...) 1260nready (...)
1168 PROTOTYPE: 1261 PROTOTYPE:
1169 CODE: 1262 CODE:
… …
1175 1268
1176SV * 1269SV *
1177_get_state () 1270_get_state ()
1178 CODE: 1271 CODE:
1179{ 1272{
1180 struct { 1273 struct io_state *data;
1181 int errorno;
1182 int laststype;
1183 int laststatval;
1184 Stat_t statcache;
1185 } data;
1186 1274
1275 RETVAL = newSV (sizeof (struct io_state));
1276 data = (struct io_state *)SvPVX (RETVAL);
1277 SvCUR_set (RETVAL, sizeof (struct io_state));
1278 SvPOK_only (RETVAL);
1279
1187 data.errorno = errno; 1280 data->errorno = errno;
1188 data.laststype = PL_laststype; 1281 data->laststype = PL_laststype;
1189 data.laststatval = PL_laststatval; 1282 data->laststatval = PL_laststatval;
1190 data.statcache = PL_statcache; 1283 data->statcache = PL_statcache;
1191
1192 RETVAL = newSVpvn ((char *)&data, sizeof data);
1193} 1284}
1194 OUTPUT: 1285 OUTPUT:
1195 RETVAL 1286 RETVAL
1196 1287
1197void 1288void
1198_set_state (char *data_) 1289_set_state (char *data_)
1199 PROTOTYPE: $ 1290 PROTOTYPE: $
1200 CODE: 1291 CODE:
1201{ 1292{
1202 struct { 1293 struct io_state *data = (void *)data_;
1203 int errorno;
1204 int laststype;
1205 int laststatval;
1206 Stat_t statcache;
1207 } *data = (void *)data_;
1208 1294
1209 errno = data->errorno; 1295 errno = data->errorno;
1210 PL_laststype = data->laststype; 1296 PL_laststype = data->laststype;
1211 PL_laststatval = data->laststatval; 1297 PL_laststatval = data->laststatval;
1212 PL_statcache = data->statcache; 1298 PL_statcache = data->statcache;
1213} 1299}
1300

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