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Comparing Coro/Coro/State.xs (file contents):
Revision 1.408 by root, Sat Jun 11 16:58:40 2011 UTC vs.
Revision 1.429 by root, Fri Dec 7 14:21:09 2012 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */ 1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS 2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3 3
4#define NDEBUG 1 4#define NDEBUG 1 /* perl usually disables NDEBUG later */
5 5
6#include "libcoro/coro.c" 6#include "libcoro/coro.c"
7 7
8#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
9#define PERL_EXT 9#define PERL_EXT
… …
12#include "perl.h" 12#include "perl.h"
13#include "XSUB.h" 13#include "XSUB.h"
14#include "perliol.h" 14#include "perliol.h"
15 15
16#include "schmorp.h" 16#include "schmorp.h"
17
18#define ECB_NO_THREADS 1
17#include "ecb.h" 19#include "ecb.h"
18 20
19#include <stddef.h> 21#include <stddef.h>
20#include <stdio.h> 22#include <stdio.h>
21#include <errno.h> 23#include <errno.h>
22#include <assert.h> 24#include <assert.h>
23 25
24#ifndef SVs_PADSTALE 26#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0 27# define SVs_PADSTALE 0
28#endif
29
30#ifdef PadARRAY
31# define NEWPADAPI
32# define newPADLIST(var) (Newz (0, var, 1, PADLIST), Newx (PadlistARRAY (var), 2, PAD *))
33#else
34typedef AV PADNAMELIST;
35# if !PERL_VERSION_ATLEAST(5,8,0)
36typedef AV PADLIST;
37typedef AV PAD;
38# endif
39# define PadlistARRAY(pl) ((PAD **)AvARRAY (pl))
40# define PadlistMAX(pl) AvFILLp (pl)
41# define PadlistNAMES(pl) (*PadlistARRAY (pl))
42# define PadARRAY AvARRAY
43# define PadMAX AvFILLp
44# define newPADLIST(var) ((var) = newAV (), av_extend (var, 1))
26#endif 45#endif
27 46
28#if defined(_WIN32) 47#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY 48# undef HAS_GETTIMEOFDAY
30# undef setjmp 49# undef setjmp
… …
33# define setjmp _setjmp /* deep magic */ 52# define setjmp _setjmp /* deep magic */
34#else 53#else
35# include <inttypes.h> /* most portable stdint.h */ 54# include <inttypes.h> /* most portable stdint.h */
36#endif 55#endif
37 56
38#ifdef HAVE_MMAP
39# include <unistd.h>
40# include <sys/mman.h>
41# ifndef MAP_ANONYMOUS
42# ifdef MAP_ANON
43# define MAP_ANONYMOUS MAP_ANON
44# else
45# undef HAVE_MMAP
46# endif
47# endif
48# include <limits.h>
49# ifndef PAGESIZE
50# define PAGESIZE pagesize
51# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE)
52static long pagesize;
53# else
54# define BOOT_PAGESIZE (void)0
55# endif
56#else
57# define PAGESIZE 0
58# define BOOT_PAGESIZE (void)0
59#endif
60
61#if CORO_USE_VALGRIND
62# include <valgrind/valgrind.h>
63#endif
64
65/* the maximum number of idle cctx that will be pooled */ 57/* the maximum number of idle cctx that will be pooled */
66static int cctx_max_idle = 4; 58static int cctx_max_idle = 4;
67 59
68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 60#if defined(DEBUGGING) && PERL_VERSION_ATLEAST(5,12,0)
69# undef CORO_STACKGUARD 61# define HAS_SCOPESTACK_NAME 1
70#endif
71
72#ifndef CORO_STACKGUARD
73# define CORO_STACKGUARD 0
74#endif 62#endif
75 63
76/* prefer perl internal functions over our own? */ 64/* prefer perl internal functions over our own? */
77#ifndef CORO_PREFER_PERL_FUNCTIONS 65#ifndef CORO_PREFER_PERL_FUNCTIONS
78# define CORO_PREFER_PERL_FUNCTIONS 0 66# define CORO_PREFER_PERL_FUNCTIONS 0
… …
97# if CORO_PTHREAD 85# if CORO_PTHREAD
98static void *coro_thx; 86static void *coro_thx;
99# endif 87# endif
100#endif 88#endif
101 89
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
104
105#ifdef __linux 90#ifdef __linux
106# include <time.h> /* for timespec */ 91# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */ 92# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime 93# ifdef SYS_clock_gettime
109# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 94# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
… …
172typedef struct coro_cctx 157typedef struct coro_cctx
173{ 158{
174 struct coro_cctx *next; 159 struct coro_cctx *next;
175 160
176 /* the stack */ 161 /* the stack */
177 void *sptr; 162 struct coro_stack stack;
178 size_t ssize;
179 163
180 /* cpu state */ 164 /* cpu state */
181 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 165 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
166#ifndef NDEBUG
182 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 167 JMPENV *idle_te; /* same as idle_sp, but for top_env */
168#endif
183 JMPENV *top_env; 169 JMPENV *top_env;
184 coro_context cctx; 170 coro_context cctx;
185 171
186 U32 gen; 172 U32 gen;
187#if CORO_USE_VALGRIND 173#if CORO_USE_VALGRIND
… …
207}; 193};
208 194
209/* the structure where most of the perl state is stored, overlaid on the cxstack */ 195/* the structure where most of the perl state is stored, overlaid on the cxstack */
210typedef struct 196typedef struct
211{ 197{
212#define VARx(name,expr,type) type name; 198 #define VARx(name,expr,type) type name;
213# include "state.h" 199 #include "state.h"
214#undef VARx
215} perl_slots; 200} perl_slots;
216 201
217// how many context stack entries do we need for perl_slots 202/* how many context stack entries do we need for perl_slots */
218#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 203#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
219 204
220/* this is a structure representing a perl-level coroutine */ 205/* this is a structure representing a perl-level coroutine */
221struct coro 206struct coro
222{ 207{
… …
291#define coro_nready coroapi.nready 276#define coro_nready coroapi.nready
292 277
293/** JIT *********************************************************************/ 278/** JIT *********************************************************************/
294 279
295#if CORO_JIT 280#if CORO_JIT
281 /* APPLE doesn't have mmap though */
282 #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__)
296 #ifndef CORO_JIT_TYPE 283 #ifndef CORO_JIT_TYPE
297 #if __x86_64 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris) 284 #if __x86_64 && CORO_JIT_UNIXY
298 #define CORO_JIT_TYPE "amd64-unix" 285 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *); 286 #elif __i386 && CORO_JIT_UNIXY
300 #elif __i386 && (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris)
301 #define CORO_JIT_TYPE "x86-unix" 287 #define CORO_JIT_TYPE "x86-unix"
302 typedef void (*load_save_perl_slots_type)(perl_slots *);
303 #else
304 #undef CORO_JIT
305 #endif 288 #endif
306 #endif 289 #endif
307#endif 290#endif
308 291
292#if !defined(CORO_JIT_TYPE) || _POSIX_MEMORY_PROTECTION <= 0
293 #undef CORO_JIT
294#endif
295
309#if CORO_JIT 296#if CORO_JIT
297 typedef void (*load_save_perl_slots_type)(perl_slots *);
310static load_save_perl_slots_type load_perl_slots, save_perl_slots; 298 static load_save_perl_slots_type load_perl_slots, save_perl_slots;
311#endif 299#endif
312 300
313/** Coro::Select ************************************************************/ 301/** Coro::Select ************************************************************/
314 302
315static OP *(*coro_old_pp_sselect) (pTHX); 303static OP *(*coro_old_pp_sselect) (pTHX);
… …
332 320
333/** time stuff **************************************************************/ 321/** time stuff **************************************************************/
334 322
335#ifdef HAS_GETTIMEOFDAY 323#ifdef HAS_GETTIMEOFDAY
336 324
337ECB_INLINE void 325ecb_inline void
338coro_u2time (pTHX_ UV ret[2]) 326coro_u2time (pTHX_ UV ret[2])
339{ 327{
340 struct timeval tv; 328 struct timeval tv;
341 gettimeofday (&tv, 0); 329 gettimeofday (&tv, 0);
342 330
343 ret [0] = tv.tv_sec; 331 ret [0] = tv.tv_sec;
344 ret [1] = tv.tv_usec; 332 ret [1] = tv.tv_usec;
345} 333}
346 334
347ECB_INLINE double 335ecb_inline double
348coro_nvtime () 336coro_nvtime (void)
349{ 337{
350 struct timeval tv; 338 struct timeval tv;
351 gettimeofday (&tv, 0); 339 gettimeofday (&tv, 0);
352 340
353 return tv.tv_sec + tv.tv_usec * 1e-6; 341 return tv.tv_sec + tv.tv_usec * 1e-6;
354} 342}
355 343
356ECB_INLINE void 344ecb_inline void
357time_init (pTHX) 345time_init (pTHX)
358{ 346{
359 nvtime = coro_nvtime; 347 nvtime = coro_nvtime;
360 u2time = coro_u2time; 348 u2time = coro_u2time;
361} 349}
362 350
363#else 351#else
364 352
365ECB_INLINE void 353ecb_inline void
366time_init (pTHX) 354time_init (pTHX)
367{ 355{
368 SV **svp; 356 SV **svp;
369 357
370 require_pv ("Time/HiRes.pm"); 358 require_pv ("Time/HiRes.pm");
371 359
372 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); 360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
373 361
374 if (!svp) croak ("Time::HiRes is required, but missing. Caught"); 362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
375 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); 363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
376 364
… …
412 get_hv (name, create); 400 get_hv (name, create);
413#endif 401#endif
414 return get_hv (name, create); 402 return get_hv (name, create);
415} 403}
416 404
417ECB_INLINE void 405ecb_inline void
418coro_times_update () 406coro_times_update (void)
419{ 407{
420#ifdef coro_clock_gettime 408#ifdef coro_clock_gettime
421 struct timespec ts; 409 struct timespec ts;
422 410
423 ts.tv_sec = ts.tv_nsec = 0; 411 ts.tv_sec = ts.tv_nsec = 0;
… …
435 time_real [0] = tv [0]; 423 time_real [0] = tv [0];
436 time_real [1] = tv [1] * 1000; 424 time_real [1] = tv [1] * 1000;
437#endif 425#endif
438} 426}
439 427
440ECB_INLINE void 428ecb_inline void
441coro_times_add (struct coro *c) 429coro_times_add (struct coro *c)
442{ 430{
443 c->t_real [1] += time_real [1]; 431 c->t_real [1] += time_real [1];
444 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 432 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
445 c->t_real [0] += time_real [0]; 433 c->t_real [0] += time_real [0];
… …
447 c->t_cpu [1] += time_cpu [1]; 435 c->t_cpu [1] += time_cpu [1];
448 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 436 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
449 c->t_cpu [0] += time_cpu [0]; 437 c->t_cpu [0] += time_cpu [0];
450} 438}
451 439
452ECB_INLINE void 440ecb_inline void
453coro_times_sub (struct coro *c) 441coro_times_sub (struct coro *c)
454{ 442{
455 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 443 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
456 c->t_real [1] -= time_real [1]; 444 c->t_real [1] -= time_real [1];
457 c->t_real [0] -= time_real [0]; 445 c->t_real [0] -= time_real [0];
… …
478 : 0) 466 : 0)
479 467
480#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
481#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
482 470
483ECB_INLINE MAGIC * 471ecb_inline MAGIC *
484SvSTATEhv_p (pTHX_ SV *coro) 472SvSTATEhv_p (pTHX_ SV *coro)
485{ 473{
486 MAGIC *mg; 474 MAGIC *mg;
487 475
488 if (ecb_expect_true ( 476 if (ecb_expect_true (
… …
493 return mg; 481 return mg;
494 482
495 return 0; 483 return 0;
496} 484}
497 485
498ECB_INLINE struct coro * 486ecb_inline struct coro *
499SvSTATE_ (pTHX_ SV *coro) 487SvSTATE_ (pTHX_ SV *coro)
500{ 488{
501 MAGIC *mg; 489 MAGIC *mg;
502 490
503 if (SvROK (coro)) 491 if (SvROK (coro))
… …
517#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 505#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
518 506
519/*****************************************************************************/ 507/*****************************************************************************/
520/* padlist management and caching */ 508/* padlist management and caching */
521 509
522ECB_INLINE AV * 510ecb_inline PADLIST *
523coro_derive_padlist (pTHX_ CV *cv) 511coro_derive_padlist (pTHX_ CV *cv)
524{ 512{
525 AV *padlist = CvPADLIST (cv); 513 PADLIST *padlist = CvPADLIST (cv);
526 AV *newpadlist, *newpad; 514 PADLIST *newpadlist;
515 PAD *newpad;
516 PADOFFSET const off = PadlistMAX (padlist) + 1;
527 517
528 newpadlist = newAV (); 518 newPADLIST(newpadlist);
519#if !PERL_VERSION_ATLEAST(5,15,3)
520 /* Padlists are AvREAL as of 5.15.3. See perl bug #98092 and perl commit 7d953ba. */
529 AvREAL_off (newpadlist); 521 AvREAL_off (newpadlist);
522#endif
530#if PERL_VERSION_ATLEAST (5,10,0) 523#if PERL_VERSION_ATLEAST (5,10,0)
531 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 524 Perl_pad_push (aTHX_ padlist, off);
532#else 525#else
533 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 526 Perl_pad_push (aTHX_ padlist, off, 1);
534#endif 527#endif
535 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 528 newpad = PadlistARRAY (padlist)[off];
536 --AvFILLp (padlist); 529 PadlistMAX (padlist) = off - 1;
537 530
538 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); 531 /* Already extended to 2 elements by newPADLIST. */
539 av_store (newpadlist, 1, (SV *)newpad); 532 PadlistMAX (newpadlist) = 1;
533 PadlistNAMES (newpadlist) = (PADNAMELIST *)SvREFCNT_inc_NN (PadlistNAMES (padlist));
534 PadlistARRAY (newpadlist)[1] = newpad;
540 535
541 return newpadlist; 536 return newpadlist;
542} 537}
543 538
544ECB_INLINE void 539ecb_inline void
545free_padlist (pTHX_ AV *padlist) 540free_padlist (pTHX_ PADLIST *padlist)
546{ 541{
547 /* may be during global destruction */ 542 /* may be during global destruction */
548 if (!IN_DESTRUCT) 543 if (!IN_DESTRUCT)
549 { 544 {
550 I32 i = AvFILLp (padlist); 545 I32 i = PadlistMAX (padlist);
551 546
552 while (i > 0) /* special-case index 0 */ 547 while (i > 0) /* special-case index 0 */
553 { 548 {
554 /* we try to be extra-careful here */ 549 /* we try to be extra-careful here */
555 AV *av = (AV *)AvARRAY (padlist)[i--]; 550 PAD *pad = PadlistARRAY (padlist)[i--];
556 I32 j = AvFILLp (av); 551 I32 j = PadMAX (pad);
557 552
558 while (j >= 0) 553 while (j >= 0)
559 SvREFCNT_dec (AvARRAY (av)[j--]); 554 SvREFCNT_dec (PadARRAY (pad)[j--]);
560 555
561 AvFILLp (av) = -1; 556 PadMAX (pad) = -1;
562 SvREFCNT_dec (av); 557 SvREFCNT_dec (pad);
563 } 558 }
564 559
565 SvREFCNT_dec (AvARRAY (padlist)[0]); 560 SvREFCNT_dec (PadlistNAMES (padlist));
566 561
562#ifdef NEWPADAPI
563 Safefree (PadlistARRAY (padlist));
564 Safefree (padlist);
565#else
567 AvFILLp (padlist) = -1; 566 AvFILLp (padlist) = -1;
567 AvREAL_off (padlist);
568 SvREFCNT_dec ((SV*)padlist); 568 SvREFCNT_dec ((SV*)padlist);
569#endif
569 } 570 }
570} 571}
571 572
572static int 573static int
573coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 574coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
574{ 575{
575 AV *padlist; 576 PADLIST *padlist;
576 AV *av = (AV *)mg->mg_obj; 577 PADLIST **padlists = (PADLIST **)(mg->mg_ptr + sizeof(size_t));
578 size_t len = *(size_t *)mg->mg_ptr;
577 579
578 /* perl manages to free our internal AV and _then_ call us */ 580 /* perl manages to free our internal AV and _then_ call us */
579 if (IN_DESTRUCT) 581 if (IN_DESTRUCT)
580 return 0; 582 return 0;
581 583
582 /* casting is fun. */ 584 while (len--)
583 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
584 free_padlist (aTHX_ padlist); 585 free_padlist (aTHX_ padlists[len]);
585
586 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
587 586
588 return 0; 587 return 0;
589} 588}
590 589
591static MGVTBL coro_cv_vtbl = { 590static MGVTBL coro_cv_vtbl = {
592 0, 0, 0, 0, 591 0, 0, 0, 0,
593 coro_cv_free 592 coro_cv_free
594}; 593};
595 594
596/* the next two functions merely cache the padlists */ 595/* the next two functions merely cache the padlists */
597ECB_INLINE void 596ecb_inline void
598get_padlist (pTHX_ CV *cv) 597get_padlist (pTHX_ CV *cv)
599{ 598{
600 MAGIC *mg = CORO_MAGIC_cv (cv); 599 MAGIC *mg = CORO_MAGIC_cv (cv);
601 AV *av; 600 size_t *lenp;
602 601
603 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 602 if (ecb_expect_true (mg && *(lenp = (size_t *)mg->mg_ptr)))
604 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 603 CvPADLIST (cv) = ((PADLIST **)(mg->mg_ptr + sizeof(size_t)))[--*lenp];
605 else 604 else
606 { 605 {
607#if CORO_PREFER_PERL_FUNCTIONS 606#if CORO_PREFER_PERL_FUNCTIONS
608 /* this is probably cleaner? but also slower! */ 607 /* this is probably cleaner? but also slower! */
609 /* in practise, it seems to be less stable */ 608 /* in practise, it seems to be less stable */
… …
615 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 614 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
616#endif 615#endif
617 } 616 }
618} 617}
619 618
620ECB_INLINE void 619ecb_inline void
621put_padlist (pTHX_ CV *cv) 620put_padlist (pTHX_ CV *cv)
622{ 621{
623 MAGIC *mg = CORO_MAGIC_cv (cv); 622 MAGIC *mg = CORO_MAGIC_cv (cv);
624 AV *av;
625 623
626 if (ecb_expect_false (!mg)) 624 if (ecb_expect_false (!mg))
625 {
627 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 626 mg = sv_magicext ((SV *)cv, 0, CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
627 Newz (0, mg->mg_ptr ,sizeof (size_t) + sizeof (PADLIST *), char);
628 mg->mg_len = 1; /* so mg_free frees mg_ptr */
629 }
630 else
631 Renew (mg->mg_ptr,
632 sizeof(size_t) + (*(size_t *)mg->mg_ptr + 1) * sizeof(PADLIST *),
633 char);
628 634
629 av = (AV *)mg->mg_obj; 635 ((PADLIST **)(mg->mg_ptr + sizeof (size_t))) [(*(size_t *)mg->mg_ptr)++] = CvPADLIST (cv);
630
631 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
632 av_extend (av, AvFILLp (av) + 1);
633
634 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
635} 636}
636 637
637/** load & save, init *******************************************************/ 638/** load & save, init *******************************************************/
638 639
640ecb_inline void
641swap_sv (SV *a, SV *b)
642{
643 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
644 SV tmp;
645
646 /* swap sv_any */
647 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
648
649 /* swap sv_flags */
650 SvFLAGS (&tmp) = SvFLAGS (a);
651 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
652 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
653
654#if PERL_VERSION_ATLEAST (5,10,0)
655 /* perl 5.10 and later complicates this _quite_ a bit, but it also
656 * is much faster, so no quarrels here. alternatively, we could
657 * sv_upgrade to avoid this.
658 */
659 {
660 /* swap sv_u */
661 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
662
663 /* if SvANY points to the head, we need to adjust the pointers,
664 * as the pointer for a still points to b, and maybe vice versa.
665 */
666 #define svany_in_head(type) \
667 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
668
669 if (svany_in_head (SvTYPE (a)))
670 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
671
672 if (svany_in_head (SvTYPE (b)))
673 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
674 }
675#endif
676}
677
639/* swap sv heads, at least logically */ 678/* swap sv heads, at least logically */
640static void 679static void
641swap_svs (pTHX_ Coro__State c) 680swap_svs (pTHX_ Coro__State c)
642{ 681{
643 int i; 682 int i;
644 683
645 for (i = 0; i <= AvFILLp (c->swap_sv); ) 684 for (i = 0; i <= AvFILLp (c->swap_sv); i += 2)
646 { 685 swap_sv (AvARRAY (c->swap_sv)[i], AvARRAY (c->swap_sv)[i + 1]);
647 SV *a = AvARRAY (c->swap_sv)[i++];
648 SV *b = AvARRAY (c->swap_sv)[i++];
649
650 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
651 SV tmp;
652
653 /* swap sv_any */
654 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
655
656 /* swap sv_flags */
657 SvFLAGS (&tmp) = SvFLAGS (a);
658 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
659 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
660
661#if PERL_VERSION_ATLEAST (5,10,0)
662 /* perl 5.10 complicates this _quite_ a bit, but it also is
663 * much faster, so no quarrels here. alternatively, we could
664 * sv_upgrade to avoid this.
665 */
666 {
667 /* swap sv_u */
668 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
669
670 /* if SvANY points to the head, we need to adjust the pointers,
671 * as the pointer for a still points to b, and maybe vice versa.
672 */
673 #define svany_in_head(type) \
674 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
675
676 if (svany_in_head (SvTYPE (a)))
677 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
678
679 if (svany_in_head (SvTYPE (b)))
680 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
681 }
682#endif
683 }
684} 686}
685 687
686#define SWAP_SVS(coro) \ 688#define SWAP_SVS(coro) \
687 if (ecb_expect_false ((coro)->swap_sv)) \ 689 if (ecb_expect_false ((coro)->swap_sv)) \
688 swap_svs (aTHX_ (coro)) 690 swap_svs (aTHX_ (coro))
… …
700 702
701#if CORO_JIT 703#if CORO_JIT
702 load_perl_slots (slot); 704 load_perl_slots (slot);
703#else 705#else
704 #define VARx(name,expr,type) expr = slot->name; 706 #define VARx(name,expr,type) expr = slot->name;
705 # include "state.h" 707 #include "state.h"
706 #undef VARx
707#endif 708#endif
708 709
709 { 710 {
710 dSP; 711 dSP;
711 712
… …
714 /* now do the ugly restore mess */ 715 /* now do the ugly restore mess */
715 while (ecb_expect_true (cv = (CV *)POPs)) 716 while (ecb_expect_true (cv = (CV *)POPs))
716 { 717 {
717 put_padlist (aTHX_ cv); /* mark this padlist as available */ 718 put_padlist (aTHX_ cv); /* mark this padlist as available */
718 CvDEPTH (cv) = PTR2IV (POPs); 719 CvDEPTH (cv) = PTR2IV (POPs);
719 CvPADLIST (cv) = (AV *)POPs; 720 CvPADLIST (cv) = (PADLIST *)POPs;
720 } 721 }
721 722
722 PUTBACK; 723 PUTBACK;
723 } 724 }
724 725
… …
814 815
815 PUTBACK; 816 PUTBACK;
816 } 817 }
817 818
818 /* allocate some space on the context stack for our purposes */ 819 /* allocate some space on the context stack for our purposes */
819 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) 820 if (ecb_expect_false (cxstack_ix + (int)SLOT_COUNT >= cxstack_max))
820 { 821 {
821 unsigned int i; 822 unsigned int i;
822 823
823 for (i = 0; i < SLOT_COUNT; ++i) 824 for (i = 0; i < SLOT_COUNT; ++i)
824 CXINC; 825 CXINC;
… …
833 834
834#if CORO_JIT 835#if CORO_JIT
835 save_perl_slots (slot); 836 save_perl_slots (slot);
836#else 837#else
837 #define VARx(name,expr,type) slot->name = expr; 838 #define VARx(name,expr,type) slot->name = expr;
838 # include "state.h" 839 #include "state.h"
839 #undef VARx
840#endif 840#endif
841 } 841 }
842} 842}
843 843
844/* 844/*
… …
876#endif 876#endif
877 877
878 New(54,PL_scopestack,8,I32); 878 New(54,PL_scopestack,8,I32);
879 PL_scopestack_ix = 0; 879 PL_scopestack_ix = 0;
880 PL_scopestack_max = 8; 880 PL_scopestack_max = 8;
881#if HAS_SCOPESTACK_NAME
882 New(54,PL_scopestack_name,8,const char*);
883#endif
881 884
882 New(54,PL_savestack,24,ANY); 885 New(54,PL_savestack,24,ANY);
883 PL_savestack_ix = 0; 886 PL_savestack_ix = 0;
884 PL_savestack_max = 24; 887 PL_savestack_max = 24;
885 888
… …
913 } 916 }
914 917
915 Safefree (PL_tmps_stack); 918 Safefree (PL_tmps_stack);
916 Safefree (PL_markstack); 919 Safefree (PL_markstack);
917 Safefree (PL_scopestack); 920 Safefree (PL_scopestack);
921#if HAS_SCOPESTACK_NAME
922 Safefree (PL_scopestack_name);
923#endif
918 Safefree (PL_savestack); 924 Safefree (PL_savestack);
919#if !PERL_VERSION_ATLEAST (5,10,0) 925#if !PERL_VERSION_ATLEAST (5,10,0)
920 Safefree (PL_retstack); 926 Safefree (PL_retstack);
921#endif 927#endif
922} 928}
… …
982 { 988 {
983 SV **svp = 0; 989 SV **svp = 0;
984 990
985 if (strEQ (s, "__DIE__" )) svp = &PL_diehook; 991 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
986 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 992 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
987 993
988 if (svp) 994 if (svp)
989 { 995 {
990 sv_setsv (sv, *svp ? *svp : &PL_sv_undef); 996 SV *ssv;
997
998 if (!*svp)
999 ssv = &PL_sv_undef;
1000 else if (SvTYPE (*svp) == SVt_PVCV) /* perlio directly stores a CV in warnhook. ugh. */
1001 ssv = sv_2mortal (newRV_inc (*svp));
1002 else
1003 ssv = *svp;
1004
1005 sv_setsv (sv, ssv);
991 return 0; 1006 return 0;
992 } 1007 }
993 } 1008 }
994 1009
995 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 1010 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
… …
1089 PL_hints = 0; 1104 PL_hints = 0;
1090 1105
1091 /* recreate the die/warn hooks */ 1106 /* recreate the die/warn hooks */
1092 PL_diehook = SvREFCNT_inc (rv_diehook); 1107 PL_diehook = SvREFCNT_inc (rv_diehook);
1093 PL_warnhook = SvREFCNT_inc (rv_warnhook); 1108 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1094 1109
1095 GvSV (PL_defgv) = newSV (0); 1110 GvSV (PL_defgv) = newSV (0);
1096 GvAV (PL_defgv) = coro->args; coro->args = 0; 1111 GvAV (PL_defgv) = coro->args; coro->args = 0;
1097 GvSV (PL_errgv) = newSV (0); 1112 GvSV (PL_errgv) = newSV (0);
1098 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1113 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1099 GvHV (PL_hintgv) = 0; 1114 GvHV (PL_hintgv) = 0;
… …
1187 /* restore swapped sv's */ 1202 /* restore swapped sv's */
1188 SWAP_SVS (coro); 1203 SWAP_SVS (coro);
1189 1204
1190 coro_destruct_stacks (aTHX); 1205 coro_destruct_stacks (aTHX);
1191 1206
1192 // now save some sv's to be free'd later 1207 /* now save some sv's to be free'd later */
1193 svf [0] = GvSV (PL_defgv); 1208 svf [0] = GvSV (PL_defgv);
1194 svf [1] = (SV *)GvAV (PL_defgv); 1209 svf [1] = (SV *)GvAV (PL_defgv);
1195 svf [2] = GvSV (PL_errgv); 1210 svf [2] = GvSV (PL_errgv);
1196 svf [3] = (SV *)PL_defoutgv; 1211 svf [3] = (SV *)PL_defoutgv;
1197 svf [4] = PL_rs; 1212 svf [4] = PL_rs;
… …
1217 SvREFCNT_dec (coro->invoke_cb); 1232 SvREFCNT_dec (coro->invoke_cb);
1218 SvREFCNT_dec (coro->invoke_av); 1233 SvREFCNT_dec (coro->invoke_av);
1219 } 1234 }
1220} 1235}
1221 1236
1222ECB_INLINE void 1237ecb_inline void
1223free_coro_mortal (pTHX) 1238free_coro_mortal (pTHX)
1224{ 1239{
1225 if (ecb_expect_true (coro_mortal)) 1240 if (ecb_expect_true (coro_mortal))
1226 { 1241 {
1227 SvREFCNT_dec ((SV *)coro_mortal); 1242 SvREFCNT_dec ((SV *)coro_mortal);
… …
1386 slf_frame.prepare = slf_prepare_set_stacklevel; 1401 slf_frame.prepare = slf_prepare_set_stacklevel;
1387 slf_frame.check = slf_check_set_stacklevel; 1402 slf_frame.check = slf_check_set_stacklevel;
1388} 1403}
1389 1404
1390/* the tail of transfer: execute stuff we can only do after a transfer */ 1405/* the tail of transfer: execute stuff we can only do after a transfer */
1391ECB_INLINE void 1406ecb_inline void
1392transfer_tail (pTHX) 1407transfer_tail (pTHX)
1393{ 1408{
1394 free_coro_mortal (aTHX); 1409 free_coro_mortal (aTHX);
1410}
1411
1412/* try to exit the same way perl's main function would do */
1413/* we do not bother resetting the environment or other things *7
1414/* that are not, uhm, essential */
1415/* this obviously also doesn't work when perl is embedded */
1416static void ecb_noinline ecb_cold
1417perlish_exit (pTHX)
1418{
1419 int exitstatus = perl_destruct (PL_curinterp);
1420 perl_free (PL_curinterp);
1421 exit (exitstatus);
1395} 1422}
1396 1423
1397/* 1424/*
1398 * this is a _very_ stripped down perl interpreter ;) 1425 * this is a _very_ stripped down perl interpreter ;)
1399 */ 1426 */
… …
1428 */ 1455 */
1429 1456
1430 /* 1457 /*
1431 * If perl-run returns we assume exit() was being called or the coro 1458 * If perl-run returns we assume exit() was being called or the coro
1432 * fell off the end, which seems to be the only valid (non-bug) 1459 * fell off the end, which seems to be the only valid (non-bug)
1433 * reason for perl_run to return. We try to exit by jumping to the 1460 * reason for perl_run to return. We try to mimic whatever perl is normally
1434 * bootstrap-time "top" top_env, as we cannot restore the "main" 1461 * doing in that case. YMMV.
1435 * coroutine as Coro has no such concept.
1436 * This actually isn't valid with the pthread backend, but OSes requiring
1437 * that backend are too broken to do it in a standards-compliant way.
1438 */ 1462 */
1439 PL_top_env = main_top_env; 1463 perlish_exit (aTHX);
1440 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1441 } 1464 }
1442} 1465}
1443 1466
1444static coro_cctx * 1467static coro_cctx *
1445cctx_new () 1468cctx_new (void)
1446{ 1469{
1447 coro_cctx *cctx; 1470 coro_cctx *cctx;
1448 1471
1449 ++cctx_count; 1472 ++cctx_count;
1450 New (0, cctx, 1, coro_cctx); 1473 New (0, cctx, 1, coro_cctx);
… …
1456 return cctx; 1479 return cctx;
1457} 1480}
1458 1481
1459/* create a new cctx only suitable as source */ 1482/* create a new cctx only suitable as source */
1460static coro_cctx * 1483static coro_cctx *
1461cctx_new_empty () 1484cctx_new_empty (void)
1462{ 1485{
1463 coro_cctx *cctx = cctx_new (); 1486 coro_cctx *cctx = cctx_new ();
1464 1487
1465 cctx->sptr = 0; 1488 cctx->stack.sptr = 0;
1466 coro_create (&cctx->cctx, 0, 0, 0, 0); 1489 coro_create (&cctx->cctx, 0, 0, 0, 0);
1467 1490
1468 return cctx; 1491 return cctx;
1469} 1492}
1470 1493
1471/* create a new cctx suitable as destination/running a perl interpreter */ 1494/* create a new cctx suitable as destination/running a perl interpreter */
1472static coro_cctx * 1495static coro_cctx *
1473cctx_new_run () 1496cctx_new_run (void)
1474{ 1497{
1475 coro_cctx *cctx = cctx_new (); 1498 coro_cctx *cctx = cctx_new ();
1476 void *stack_start;
1477 size_t stack_size;
1478 1499
1479#if HAVE_MMAP 1500 if (!coro_stack_alloc (&cctx->stack, cctx_stacksize))
1480 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
1481 /* mmap supposedly does allocate-on-write for us */
1482 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
1483
1484 if (cctx->sptr != (void *)-1)
1485 {
1486 #if CORO_STACKGUARD
1487 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
1488 #endif
1489 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
1490 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
1491 cctx->flags |= CC_MAPPED;
1492 } 1501 {
1493 else
1494#endif
1495 {
1496 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1497 New (0, cctx->sptr, cctx_stacksize, long);
1498
1499 if (!cctx->sptr)
1500 {
1501 perror ("FATAL: unable to allocate stack for coroutine, exiting."); 1502 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1502 _exit (EXIT_FAILURE); 1503 _exit (EXIT_FAILURE);
1503 }
1504
1505 stack_start = cctx->sptr;
1506 stack_size = cctx->ssize;
1507 } 1504 }
1508 1505
1509 #if CORO_USE_VALGRIND
1510 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1511 #endif
1512
1513 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1506 coro_create (&cctx->cctx, cctx_run, (void *)cctx, cctx->stack.sptr, cctx->stack.ssze);
1514 1507
1515 return cctx; 1508 return cctx;
1516} 1509}
1517 1510
1518static void 1511static void
… …
1524 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); 1517 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1525 1518
1526 --cctx_count; 1519 --cctx_count;
1527 coro_destroy (&cctx->cctx); 1520 coro_destroy (&cctx->cctx);
1528 1521
1529 /* coro_transfer creates new, empty cctx's */ 1522 coro_stack_free (&cctx->stack);
1530 if (cctx->sptr)
1531 {
1532 #if CORO_USE_VALGRIND
1533 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1534 #endif
1535
1536#if HAVE_MMAP
1537 if (cctx->flags & CC_MAPPED)
1538 munmap (cctx->sptr, cctx->ssize);
1539 else
1540#endif
1541 Safefree (cctx->sptr);
1542 }
1543 1523
1544 Safefree (cctx); 1524 Safefree (cctx);
1545} 1525}
1546 1526
1547/* wether this cctx should be destructed */ 1527/* wether this cctx should be destructed */
… …
1566} 1546}
1567 1547
1568static void 1548static void
1569cctx_put (coro_cctx *cctx) 1549cctx_put (coro_cctx *cctx)
1570{ 1550{
1571 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1551 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->stack.sptr));
1572 1552
1573 /* free another cctx if overlimit */ 1553 /* free another cctx if overlimit */
1574 if (ecb_expect_false (cctx_idle >= cctx_max_idle)) 1554 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1575 { 1555 {
1576 coro_cctx *first = cctx_first; 1556 coro_cctx *first = cctx_first;
… …
1702 return; 1682 return;
1703 1683
1704 slf_destroy (aTHX_ coro); 1684 slf_destroy (aTHX_ coro);
1705 1685
1706 coro->flags |= CF_ZOMBIE; 1686 coro->flags |= CF_ZOMBIE;
1707 1687
1708 if (coro->flags & CF_READY) 1688 if (coro->flags & CF_READY)
1709 { 1689 {
1710 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1690 /* reduce nready, as destroying a ready coro effectively unreadies it */
1711 /* alternative: look through all ready queues and remove the coro */ 1691 /* alternative: look through all ready queues and remove the coro */
1712 --coro_nready; 1692 --coro_nready;
… …
1789 TRANSFER (ta, 1); 1769 TRANSFER (ta, 1);
1790} 1770}
1791 1771
1792/** Coro ********************************************************************/ 1772/** Coro ********************************************************************/
1793 1773
1794ECB_INLINE void 1774ecb_inline void
1795coro_enq (pTHX_ struct coro *coro) 1775coro_enq (pTHX_ struct coro *coro)
1796{ 1776{
1797 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1777 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1798 1778
1799 SvREFCNT_inc_NN (coro->hv); 1779 SvREFCNT_inc_NN (coro->hv);
… …
1801 coro->next_ready = 0; 1781 coro->next_ready = 0;
1802 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1782 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1803 ready [1] = coro; 1783 ready [1] = coro;
1804} 1784}
1805 1785
1806ECB_INLINE struct coro * 1786ecb_inline struct coro *
1807coro_deq (pTHX) 1787coro_deq (pTHX)
1808{ 1788{
1809 int prio; 1789 int prio;
1810 1790
1811 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1791 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1864{ 1844{
1865 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1845 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1866} 1846}
1867 1847
1868/* expects to own a reference to next->hv */ 1848/* expects to own a reference to next->hv */
1869ECB_INLINE void 1849ecb_inline void
1870prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1850prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1871{ 1851{
1872 SV *prev_sv = SvRV (coro_current); 1852 SV *prev_sv = SvRV (coro_current);
1873 1853
1874 ta->prev = SvSTATE_hv (prev_sv); 1854 ta->prev = SvSTATE_hv (prev_sv);
… …
1933 } 1913 }
1934 } 1914 }
1935 } 1915 }
1936} 1916}
1937 1917
1938ECB_INLINE void 1918ecb_inline void
1939prepare_cede (pTHX_ struct coro_transfer_args *ta) 1919prepare_cede (pTHX_ struct coro_transfer_args *ta)
1940{ 1920{
1941 api_ready (aTHX_ coro_current); 1921 api_ready (aTHX_ coro_current);
1942 prepare_schedule (aTHX_ ta); 1922 prepare_schedule (aTHX_ ta);
1943} 1923}
1944 1924
1945ECB_INLINE void 1925ecb_inline void
1946prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1926prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1947{ 1927{
1948 SV *prev = SvRV (coro_current); 1928 SV *prev = SvRV (coro_current);
1949 1929
1950 if (coro_nready) 1930 if (coro_nready)
… …
2145 2125
2146static void 2126static void
2147coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) 2127coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2148{ 2128{
2149 AV *av; 2129 AV *av;
2150 2130
2151 if (coro->status) 2131 if (coro->status)
2152 { 2132 {
2153 av = coro->status; 2133 av = coro->status;
2154 av_clear (av); 2134 av_clear (av);
2155 } 2135 }
… …
2202 2182
2203 coro = SvSTATE (arg [0]); 2183 coro = SvSTATE (arg [0]);
2204 coro_hv = coro->hv; 2184 coro_hv = coro->hv;
2205 2185
2206 coro_set_status (aTHX_ coro, arg + 1, items - 1); 2186 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2207 2187
2208 if (ecb_expect_false (coro->flags & CF_NOCANCEL)) 2188 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2209 { 2189 {
2210 /* coro currently busy cancelling something, so just notify it */ 2190 /* coro currently busy cancelling something, so just notify it */
2211 coro->slf_frame.data = (void *)coro; 2191 coro->slf_frame.data = (void *)coro;
2212 2192
… …
2391 2371
2392static int 2372static int
2393slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) 2373slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2394{ 2374{
2395 SV *data = (SV *)frame->data; 2375 SV *data = (SV *)frame->data;
2396 2376
2397 if (CORO_THROW) 2377 if (CORO_THROW)
2398 return 0; 2378 return 0;
2399 2379
2400 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2380 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2401 return 1; 2381 return 1;
… …
2437 cb = sv_2mortal (coro->rouse_cb); 2417 cb = sv_2mortal (coro->rouse_cb);
2438 coro->rouse_cb = 0; 2418 coro->rouse_cb = 0;
2439 } 2419 }
2440 2420
2441 if (!SvROK (cb) 2421 if (!SvROK (cb)
2442 || SvTYPE (SvRV (cb)) != SVt_PVCV 2422 || SvTYPE (SvRV (cb)) != SVt_PVCV
2443 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2423 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2444 croak ("Coro::rouse_wait called with illegal callback argument,"); 2424 croak ("Coro::rouse_wait called with illegal callback argument,");
2445 2425
2446 { 2426 {
2447 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ 2427 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
… …
2950 { 2930 {
2951 int i; 2931 int i;
2952 /* if we were woken up but can't down, we look through the whole */ 2932 /* if we were woken up but can't down, we look through the whole */
2953 /* waiters list and only add us if we aren't in there already */ 2933 /* waiters list and only add us if we aren't in there already */
2954 /* this avoids some degenerate memory usage cases */ 2934 /* this avoids some degenerate memory usage cases */
2955 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug 2935 for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */
2956 if (AvARRAY (av)[i] == coro_hv) 2936 if (AvARRAY (av)[i] == coro_hv)
2957 return 1; 2937 return 1;
2958 2938
2959 av_push (av, SvREFCNT_inc (coro_hv)); 2939 av_push (av, SvREFCNT_inc (coro_hv));
2960 return 1; 2940 return 1;
… …
3340#endif 3320#endif
3341 3321
3342#if CORO_JIT 3322#if CORO_JIT
3343 3323
3344static void ecb_noinline ecb_cold 3324static void ecb_noinline ecb_cold
3345pushav_3uv (pTHX_ UV a, UV b, UV c) 3325pushav_4uv (pTHX_ UV a, UV b, UV c, UV d)
3346{ 3326{
3347 dSP; 3327 dSP;
3348 AV *av = newAV (); 3328 AV *av = newAV ();
3349 3329
3330 av_store (av, 3, newSVuv (d));
3350 av_store (av, 2, newSVuv (c)); 3331 av_store (av, 2, newSVuv (c));
3351 av_store (av, 1, newSVuv (b)); 3332 av_store (av, 1, newSVuv (b));
3352 av_store (av, 0, newSVuv (a)); 3333 av_store (av, 0, newSVuv (a));
3353 3334
3354 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 3335 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
… …
3361{ 3342{
3362 dSP; 3343 dSP;
3363 SV *load, *save; 3344 SV *load, *save;
3364 char *map_base; 3345 char *map_base;
3365 char *load_ptr, *save_ptr; 3346 char *load_ptr, *save_ptr;
3366 STRLEN load_len, save_len; 3347 STRLEN load_len, save_len, map_len;
3367 int count; 3348 int count;
3368 3349
3350 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3351
3369 PUSHMARK (SP); 3352 PUSHMARK (SP);
3370 PUTBACK;
3371#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type)); 3353 #define VARx(name,expr,type) pushav_4uv (aTHX_ (UV)&(expr), sizeof (expr), offsetof (perl_slots, name), sizeof (type));
3372# include "state.h" 3354 #include "state.h"
3373#undef VARx
3374 count = call_pv ("Coro::State::_jit", G_ARRAY); 3355 count = call_pv ("Coro::State::_jit", G_ARRAY);
3375 SPAGAIN; 3356 SPAGAIN;
3376 3357
3377 save = POPs; save_ptr = SvPVbyte (save, save_len); 3358 save = POPs; save_ptr = SvPVbyte (save, save_len);
3378 load = POPs; load_ptr = SvPVbyte (load, load_len); 3359 load = POPs; load_ptr = SvPVbyte (load, load_len);
3379 3360
3361 map_len = load_len + save_len + 16;
3362
3380 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); 3363 map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3381 3364
3382 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); 3365 assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3383 3366
3384 load_perl_slots = (load_save_perl_slots_type)map_base; 3367 load_perl_slots = (load_save_perl_slots_type)map_base;
3385 memcpy (map_base, load_ptr, load_len); 3368 memcpy (map_base, load_ptr, load_len);
3386 3369
3387 map_base += (load_len + 15) & ~15; 3370 map_base += (load_len + 15) & ~15;
3388 3371
3389 save_perl_slots = (load_save_perl_slots_type)map_base; 3372 save_perl_slots = (load_save_perl_slots_type)map_base;
3390 memcpy (map_base, save_ptr, save_len); 3373 memcpy (map_base, save_ptr, save_len);
3374
3375 /* we are good citizens and try to make the page read-only, so the evil evil */
3376 /* hackers might have it a bit more difficult */
3377 mprotect (map_base, map_len, PROT_READ | PROT_EXEC);
3378
3379 PUTBACK;
3380 eval_pv ("undef &Coro::State::_jit", 1);
3391} 3381}
3392 3382
3393#endif 3383#endif
3394 3384
3395MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3385MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
… …
3401#ifdef USE_ITHREADS 3391#ifdef USE_ITHREADS
3402# if CORO_PTHREAD 3392# if CORO_PTHREAD
3403 coro_thx = PERL_GET_CONTEXT; 3393 coro_thx = PERL_GET_CONTEXT;
3404# endif 3394# endif
3405#endif 3395#endif
3406 BOOT_PAGESIZE;
3407
3408 /* perl defines these to check for existance first, but why it doesn't */ 3396 /* perl defines these to check for existance first, but why it doesn't */
3409 /* just create them one at init time is not clear to me, except for */ 3397 /* just create them one at init time is not clear to me, except for */
3410 /* programs trying to delete them, but... */ 3398 /* programs trying to delete them, but... */
3411 /* anyway, we declare this as invalid and make sure they are initialised here */ 3399 /* anyway, we declare this as invalid and make sure they are initialised here */
3412 DEFSV; 3400 DEFSV;
… …
3463 time_init (aTHX); 3451 time_init (aTHX);
3464 3452
3465 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3453 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3466#if CORO_JIT 3454#if CORO_JIT
3467 PUTBACK; 3455 PUTBACK;
3468 eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1);
3469 jit_init (aTHX); 3456 jit_init (aTHX);
3470 perl_eval_pv ("undef &Coro::State::_jit", 1);
3471 SPAGAIN; 3457 SPAGAIN;
3472#endif 3458#endif
3473} 3459}
3474 3460
3475SV * 3461SV *
… …
3554void 3540void
3555list () 3541list ()
3556 PROTOTYPE: 3542 PROTOTYPE:
3557 PPCODE: 3543 PPCODE:
3558{ 3544{
3559 struct coro *coro; 3545 struct coro *coro;
3560 for (coro = coro_first; coro; coro = coro->next) 3546 for (coro = coro_first; coro; coro = coro->next)
3561 if (coro->hv) 3547 if (coro->hv)
3562 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 3548 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
3563} 3549}
3564 3550
… …
3628 RETVAL = boolSV (coro->flags & ix); 3614 RETVAL = boolSV (coro->flags & ix);
3629 OUTPUT: 3615 OUTPUT:
3630 RETVAL 3616 RETVAL
3631 3617
3632void 3618void
3633throw (Coro::State self, SV *exception = &PL_sv_undef) 3619throw (SV *self, SV *exception = &PL_sv_undef)
3634 PROTOTYPE: $;$ 3620 PROTOTYPE: $;$
3635 CODE: 3621 CODE:
3636{ 3622{
3623 struct coro *coro = SvSTATE (self);
3637 struct coro *current = SvSTATE_current; 3624 struct coro *current = SvSTATE_current;
3638 SV **exceptionp = self == current ? &CORO_THROW : &self->except; 3625 SV **exceptionp = coro == current ? &CORO_THROW : &coro->except;
3639 SvREFCNT_dec (*exceptionp); 3626 SvREFCNT_dec (*exceptionp);
3640 SvGETMAGIC (exception); 3627 SvGETMAGIC (exception);
3641 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; 3628 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3629
3630 api_ready (aTHX_ self);
3642} 3631}
3643 3632
3644void 3633void
3645api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3634api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3646 PROTOTYPE: $;$ 3635 PROTOTYPE: $;$
… …
3723 3712
3724void 3713void
3725times (Coro::State self) 3714times (Coro::State self)
3726 PPCODE: 3715 PPCODE:
3727{ 3716{
3728 struct coro *current = SvSTATE (coro_current); 3717 struct coro *current = SvSTATE (coro_current);
3729 3718
3730 if (ecb_expect_false (current == self)) 3719 if (ecb_expect_false (current == self))
3731 { 3720 {
3732 coro_times_update (); 3721 coro_times_update ();
3733 coro_times_add (SvSTATE (coro_current)); 3722 coro_times_add (SvSTATE (coro_current));
… …
3776 3765
3777 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3766 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3778 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3767 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3779 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3768 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3780 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ 3769 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3781 3770
3782 coro_stash = gv_stashpv ("Coro", TRUE); 3771 coro_stash = gv_stashpv ("Coro", TRUE);
3783 3772
3784 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3773 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3785 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3774 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3786 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3775 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
4008 on_leave = 1 3997 on_leave = 1
4009 PROTOTYPE: & 3998 PROTOTYPE: &
4010 CODE: 3999 CODE:
4011{ 4000{
4012 struct coro *coro = SvSTATE_current; 4001 struct coro *coro = SvSTATE_current;
4013 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 4002 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
4014 4003
4015 block = s_get_cv_croak (block); 4004 block = s_get_cv_croak (block);
4016 4005
4017 if (!*avp) 4006 if (!*avp)
4018 *avp = newAV (); 4007 *avp = newAV ();
… …
4038 4027
4039SV * 4028SV *
4040new (SV *klass, SV *count = 0) 4029new (SV *klass, SV *count = 0)
4041 CODE: 4030 CODE:
4042{ 4031{
4043 int semcnt = 1; 4032 int semcnt = 1;
4044 4033
4045 if (count) 4034 if (count)
4046 { 4035 {
4047 SvGETMAGIC (count); 4036 SvGETMAGIC (count);
4048 4037
… …
4108 XSRETURN_NO; 4097 XSRETURN_NO;
4109} 4098}
4110 4099
4111void 4100void
4112waiters (SV *self) 4101waiters (SV *self)
4113 PPCODE: 4102 PPCODE:
4114{ 4103{
4115 AV *av = (AV *)SvRV (self); 4104 AV *av = (AV *)SvRV (self);
4116 int wcount = AvFILLp (av) + 1 - 1; 4105 int wcount = AvFILLp (av) + 1 - 1;
4117 4106
4118 if (GIMME_V == G_SCALAR) 4107 if (GIMME_V == G_SCALAR)
… …
4127} 4116}
4128 4117
4129MODULE = Coro::State PACKAGE = Coro::SemaphoreSet 4118MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
4130 4119
4131void 4120void
4132_may_delete (SV *sem, int count, int extra_refs) 4121_may_delete (SV *sem, int count, unsigned int extra_refs)
4133 PPCODE: 4122 PPCODE:
4134{ 4123{
4135 AV *av = (AV *)SvRV (sem); 4124 AV *av = (AV *)SvRV (sem);
4136 4125
4137 if (SvREFCNT ((SV *)av) == 1 + extra_refs 4126 if (SvREFCNT ((SV *)av) == 1 + extra_refs
4138 && AvFILLp (av) == 0 /* no waiters, just count */ 4127 && AvFILLp (av) == 0 /* no waiters, just count */
4139 && SvIV (AvARRAY (av)[0]) == count) 4128 && SvIV (AvARRAY (av)[0]) == count)
4140 XSRETURN_YES; 4129 XSRETURN_YES;
… …
4161 4150
4162void 4151void
4163broadcast (SV *self) 4152broadcast (SV *self)
4164 CODE: 4153 CODE:
4165{ 4154{
4166 AV *av = (AV *)SvRV (self); 4155 AV *av = (AV *)SvRV (self);
4167 coro_signal_wake (aTHX_ av, AvFILLp (av)); 4156 coro_signal_wake (aTHX_ av, AvFILLp (av));
4168} 4157}
4169 4158
4170void 4159void
4171send (SV *self) 4160send (SV *self)
… …
4179 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ 4168 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
4180} 4169}
4181 4170
4182IV 4171IV
4183awaited (SV *self) 4172awaited (SV *self)
4184 CODE: 4173 CODE:
4185 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; 4174 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
4186 OUTPUT: 4175 OUTPUT:
4187 RETVAL 4176 RETVAL
4188 4177
4189 4178
… …
4194 4183
4195void 4184void
4196_schedule (...) 4185_schedule (...)
4197 CODE: 4186 CODE:
4198{ 4187{
4199 static int incede; 4188 static int incede;
4200 4189
4201 api_cede_notself (aTHX); 4190 api_cede_notself (aTHX);
4202 4191
4203 ++incede; 4192 ++incede;
4204 while (coro_nready >= incede && api_cede (aTHX)) 4193 while (coro_nready >= incede && api_cede (aTHX))

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