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Comparing Coro/Coro/State.xs (file contents):
Revision 1.210 by root, Wed Oct 10 03:24:40 2007 UTC vs.
Revision 1.267 by root, Fri Nov 14 06:29:52 2008 UTC

… …
4#define PERL_EXT 4#define PERL_EXT
5 5
6#include "EXTERN.h" 6#include "EXTERN.h"
7#include "perl.h" 7#include "perl.h"
8#include "XSUB.h" 8#include "XSUB.h"
9#include "perliol.h"
9 10
10#include "patchlevel.h" 11#include "patchlevel.h"
11 12
12#include <stdio.h> 13#include <stdio.h>
13#include <errno.h> 14#include <errno.h>
14#include <assert.h> 15#include <assert.h>
16
17#ifdef WIN32
18# undef setjmp
19# undef longjmp
20# undef _exit
21# define setjmp _setjmp // deep magic, don't ask
22#else
15#include <inttypes.h> /* portable stdint.h */ 23# include <inttypes.h> /* most portable stdint.h */
24#endif
16 25
17#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
18# include <unistd.h> 27# include <unistd.h>
19# include <sys/mman.h> 28# include <sys/mman.h>
20# ifndef MAP_ANONYMOUS 29# ifndef MAP_ANONYMOUS
… …
37# define BOOT_PAGESIZE (void)0 46# define BOOT_PAGESIZE (void)0
38#endif 47#endif
39 48
40#if CORO_USE_VALGRIND 49#if CORO_USE_VALGRIND
41# include <valgrind/valgrind.h> 50# include <valgrind/valgrind.h>
42# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
43#else
44# define REGISTER_STACK(cctx,start,end)
45#endif 51#endif
46 52
47/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
48#define MAX_IDLE_CCTX 8 54static int cctx_max_idle = 4;
49 55
50#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
51 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
52 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
53 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
… …
72# ifndef IS_PADCONST 78# ifndef IS_PADCONST
73# define IS_PADCONST(v) 0 79# define IS_PADCONST(v) 0
74# endif 80# endif
75#endif 81#endif
76 82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100
77/* 5.8.7 */ 101/* 5.8.7 */
78#ifndef SvRV_set 102#ifndef SvRV_set
79# define SvRV_set(s,v) SvRV(s) = (v) 103# define SvRV_set(s,v) SvRV(s) = (v)
80#endif
81
82/* 5.8.8 */
83#ifndef GV_NOTQUAL
84# define GV_NOTQUAL 0
85#endif
86#ifndef newSV
87# define newSV(l) NEWSV(0,l)
88#endif 104#endif
89 105
90#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 106#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
91# undef CORO_STACKGUARD 107# undef CORO_STACKGUARD
92#endif 108#endif
… …
107 123
108#define IN_DESTRUCT (PL_main_cv == Nullcv) 124#define IN_DESTRUCT (PL_main_cv == Nullcv)
109 125
110#if __GNUC__ >= 3 126#if __GNUC__ >= 3
111# define attribute(x) __attribute__(x) 127# define attribute(x) __attribute__(x)
112# define BARRIER __asm__ __volatile__ ("" : : : "memory")
113# define expect(expr,value) __builtin_expect ((expr),(value)) 128# define expect(expr,value) __builtin_expect ((expr),(value))
129# define INLINE static inline
114#else 130#else
115# define attribute(x) 131# define attribute(x)
116# define BARRIER
117# define expect(expr,value) (expr) 132# define expect(expr,value) (expr)
133# define INLINE static
118#endif 134#endif
119 135
120#define expect_false(expr) expect ((expr) != 0, 0) 136#define expect_false(expr) expect ((expr) != 0, 0)
121#define expect_true(expr) expect ((expr) != 0, 1) 137#define expect_true(expr) expect ((expr) != 0, 1)
122 138
123#define NOINLINE attribute ((noinline)) 139#define NOINLINE attribute ((noinline))
124 140
125#include "CoroAPI.h" 141#include "CoroAPI.h"
126 142
127#ifdef USE_ITHREADS 143#ifdef USE_ITHREADS
144
128static perl_mutex coro_mutex; 145static perl_mutex coro_lock;
129# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 146# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
130# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) 147# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
148# if CORO_PTHREAD
149static void *coro_thx;
150# endif
151
131#else 152#else
153
132# define LOCK (void)0 154# define LOCK (void)0
133# define UNLOCK (void)0 155# define UNLOCK (void)0
134#endif
135 156
136#define strpair(const) const, sizeof (const) - 1 157#endif
158
159# undef LOCK
160# define LOCK (void)0
161# undef UNLOCK
162# define UNLOCK (void)0
137 163
138/* helper storage struct for Coro::AIO */ 164/* helper storage struct for Coro::AIO */
139struct io_state 165struct io_state
140{ 166{
167 AV *res;
141 int errorno; 168 int errorno;
142 I32 laststype; 169 I32 laststype; /* U16 in 5.10.0 */
143 int laststatval; 170 int laststatval;
144 Stat_t statcache; 171 Stat_t statcache;
145}; 172};
146 173
174static double (*nvtime)(); /* so why doesn't it take void? */
175
176static U32 cctx_gen;
147static size_t coro_stacksize = CORO_STACKSIZE; 177static size_t cctx_stacksize = CORO_STACKSIZE;
148static struct CoroAPI coroapi; 178static struct CoroAPI coroapi;
149static AV *main_mainstack; /* used to differentiate between $main and others */ 179static AV *main_mainstack; /* used to differentiate between $main and others */
150static JMPENV *main_top_env; 180static JMPENV *main_top_env;
151static HV *coro_state_stash, *coro_stash; 181static HV *coro_state_stash, *coro_stash;
152static SV *coro_mortal; /* will be freed after next transfer */ 182static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
183static volatile struct coro *transfer_next;
184
185struct transfer_args
186{
187 struct coro *prev, *next;
188};
153 189
154static GV *irsgv; /* $/ */ 190static GV *irsgv; /* $/ */
155static GV *stdoutgv; /* *STDOUT */ 191static GV *stdoutgv; /* *STDOUT */
156 192static SV *rv_diehook;
193static SV *rv_warnhook;
157static HV *hv_sig; /* %SIG */ 194static HV *hv_sig; /* %SIG */
158static SV *sv_diehook;
159static SV *sv_warnhook;
160 195
161/* async_pool helper stuff */ 196/* async_pool helper stuff */
162static SV *sv_pool_rss; 197static SV *sv_pool_rss;
163static SV *sv_pool_size; 198static SV *sv_pool_size;
164static AV *av_async_pool; 199static AV *av_async_pool;
165 200
166static struct coro_cctx *cctx_first[3]; /* index by GIMME_V type, void, scalar, array */ 201/* Coro::AnyEvent */
202static SV *sv_activity;
203
204static struct coro_cctx *cctx_first;
167static int cctx_count, cctx_idle[3]; 205static int cctx_count, cctx_idle;
168 206
169enum { 207enum {
170 CC_MAPPED = 0x01, 208 CC_MAPPED = 0x01,
171 CC_NOREUSE = 0x02, /* throw this away after tracing */ 209 CC_NOREUSE = 0x02, /* throw this away after tracing */
172 CC_TRACE = 0x04, 210 CC_TRACE = 0x04,
… …
187 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 225 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
188 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 226 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
189 JMPENV *top_env; 227 JMPENV *top_env;
190 coro_context cctx; 228 coro_context cctx;
191 229
230 U32 gen;
192#if CORO_USE_VALGRIND 231#if CORO_USE_VALGRIND
193 int valgrind_id; 232 int valgrind_id;
194#endif 233#endif
195 unsigned char flags; 234 unsigned char flags;
196} coro_cctx; 235} coro_cctx;
… …
217 256
218/* this is a structure representing a perl-level coroutine */ 257/* this is a structure representing a perl-level coroutine */
219struct coro { 258struct coro {
220 /* the c coroutine allocated to this perl coroutine, if any */ 259 /* the c coroutine allocated to this perl coroutine, if any */
221 coro_cctx *cctx; 260 coro_cctx *cctx;
222 int gimme;
223 261
224 /* process data */ 262 /* process data */
225 AV *mainstack; 263 AV *mainstack;
226 perl_slots *slot; /* basically the saved sp */ 264 perl_slots *slot; /* basically the saved sp */
227 265
… …
256#define PRIO_IDLE -3 294#define PRIO_IDLE -3
257#define PRIO_MIN -4 295#define PRIO_MIN -4
258 296
259/* for Coro.pm */ 297/* for Coro.pm */
260static SV *coro_current; 298static SV *coro_current;
299static SV *coro_readyhook;
261static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 300static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
262static int coro_nready; 301static int coro_nready;
263static struct coro *coro_first; 302static struct coro *coro_first;
264 303
265/** lowlevel stuff **********************************************************/ 304/** lowlevel stuff **********************************************************/
266 305
267static SV * 306static SV *
268coro_get_sv (const char *name, int create) 307coro_get_sv (pTHX_ const char *name, int create)
269{ 308{
270#if PERL_VERSION_ATLEAST (5,9,0) 309#if PERL_VERSION_ATLEAST (5,10,0)
271 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 310 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
272 get_sv (name, create); 311 get_sv (name, create);
273#endif 312#endif
274 return get_sv (name, create); 313 return get_sv (name, create);
275} 314}
276 315
277static AV * 316static AV *
278coro_get_av (const char *name, int create) 317coro_get_av (pTHX_ const char *name, int create)
279{ 318{
280#if PERL_VERSION_ATLEAST (5,9,0) 319#if PERL_VERSION_ATLEAST (5,10,0)
281 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 320 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
282 get_av (name, create); 321 get_av (name, create);
283#endif 322#endif
284 return get_av (name, create); 323 return get_av (name, create);
285} 324}
286 325
287static HV * 326static HV *
288coro_get_hv (const char *name, int create) 327coro_get_hv (pTHX_ const char *name, int create)
289{ 328{
290#if PERL_VERSION_ATLEAST (5,9,0) 329#if PERL_VERSION_ATLEAST (5,10,0)
291 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 330 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
292 get_hv (name, create); 331 get_hv (name, create);
293#endif 332#endif
294 return get_hv (name, create); 333 return get_hv (name, create);
295} 334}
… …
300 AV *padlist = CvPADLIST (cv); 339 AV *padlist = CvPADLIST (cv);
301 AV *newpadlist, *newpad; 340 AV *newpadlist, *newpad;
302 341
303 newpadlist = newAV (); 342 newpadlist = newAV ();
304 AvREAL_off (newpadlist); 343 AvREAL_off (newpadlist);
305#if PERL_VERSION_ATLEAST (5,9,0) 344#if PERL_VERSION_ATLEAST (5,10,0)
306 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 345 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
307#else 346#else
308 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 347 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
309#endif 348#endif
310 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 349 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
311 --AvFILLp (padlist); 350 --AvFILLp (padlist);
312 351
313 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); 352 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
314 av_store (newpadlist, 1, (SV *)newpad); 353 av_store (newpadlist, 1, (SV *)newpad);
315 354
316 return newpadlist; 355 return newpadlist;
317} 356}
318 357
… …
348 387
349 /* casting is fun. */ 388 /* casting is fun. */
350 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 389 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
351 free_padlist (aTHX_ padlist); 390 free_padlist (aTHX_ padlist);
352 391
353 SvREFCNT_dec (av); 392 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
354 393
355 return 0; 394 return 0;
356} 395}
357 396
358#define PERL_MAGIC_coro PERL_MAGIC_ext 397#define CORO_MAGIC_type_cv PERL_MAGIC_ext
398#define CORO_MAGIC_type_state PERL_MAGIC_ext
359 399
360static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 400static MGVTBL coro_cv_vtbl = {
401 0, 0, 0, 0,
402 coro_cv_free
403};
361 404
362#define CORO_MAGIC(cv) \ 405#define CORO_MAGIC(sv, type) \
363 SvMAGIC (cv) \ 406 SvMAGIC (sv) \
364 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 407 ? SvMAGIC (sv)->mg_type == type \
365 ? SvMAGIC (cv) \ 408 ? SvMAGIC (sv) \
366 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 409 : mg_find (sv, type) \
367 : 0 410 : 0
368 411
369static struct coro * 412#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
413#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
414
415INLINE struct coro *
370SvSTATE_ (pTHX_ SV *coro) 416SvSTATE_ (pTHX_ SV *coro)
371{ 417{
372 HV *stash; 418 HV *stash;
373 MAGIC *mg; 419 MAGIC *mg;
374 420
… …
384 /* very slow, but rare, check */ 430 /* very slow, but rare, check */
385 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) 431 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
386 croak ("Coro::State object required"); 432 croak ("Coro::State object required");
387 } 433 }
388 434
389 mg = CORO_MAGIC (coro); 435 mg = CORO_MAGIC_state (coro);
390 return (struct coro *)mg->mg_ptr; 436 return (struct coro *)mg->mg_ptr;
391} 437}
392 438
393#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 439#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
394 440
395/* the next two functions merely cache the padlists */ 441/* the next two functions merely cache the padlists */
396static void 442static void
397get_padlist (pTHX_ CV *cv) 443get_padlist (pTHX_ CV *cv)
398{ 444{
399 MAGIC *mg = CORO_MAGIC (cv); 445 MAGIC *mg = CORO_MAGIC_cv (cv);
400 AV *av; 446 AV *av;
401 447
402 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 448 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
403 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 449 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
404 else 450 else
405 { 451 {
406#if CORO_PREFER_PERL_FUNCTIONS 452#if CORO_PREFER_PERL_FUNCTIONS
407 /* this is probably cleaner, but also slower? */ 453 /* this is probably cleaner? but also slower! */
454 /* in practise, it seems to be less stable */
408 CV *cp = Perl_cv_clone (cv); 455 CV *cp = Perl_cv_clone (cv);
409 CvPADLIST (cv) = CvPADLIST (cp); 456 CvPADLIST (cv) = CvPADLIST (cp);
410 CvPADLIST (cp) = 0; 457 CvPADLIST (cp) = 0;
411 SvREFCNT_dec (cp); 458 SvREFCNT_dec (cp);
412#else 459#else
… …
416} 463}
417 464
418static void 465static void
419put_padlist (pTHX_ CV *cv) 466put_padlist (pTHX_ CV *cv)
420{ 467{
421 MAGIC *mg = CORO_MAGIC (cv); 468 MAGIC *mg = CORO_MAGIC_cv (cv);
422 AV *av; 469 AV *av;
423 470
424 if (expect_false (!mg)) 471 if (expect_false (!mg))
425 { 472 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
426 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
427 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
428 mg->mg_virtual = &vtbl_coro;
429 mg->mg_obj = (SV *)newAV ();
430 }
431 473
432 av = (AV *)mg->mg_obj; 474 av = (AV *)mg->mg_obj;
433 475
434 if (expect_false (AvFILLp (av) >= AvMAX (av))) 476 if (expect_false (AvFILLp (av) >= AvMAX (av)))
435 av_extend (av, AvMAX (av) + 1); 477 av_extend (av, AvMAX (av) + 1);
… …
453 GvSV (irsgv) = slot->irsgv; 495 GvSV (irsgv) = slot->irsgv;
454 496
455 #define VAR(name,type) PL_ ## name = slot->name; 497 #define VAR(name,type) PL_ ## name = slot->name;
456 # include "state.h" 498 # include "state.h"
457 #undef VAR 499 #undef VAR
458
459 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
460 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
461 500
462 { 501 {
463 dSP; 502 dSP;
464 503
465 CV *cv; 504 CV *cv;
… …
504 543
505 if (expect_true (CvDEPTH (cv))) 544 if (expect_true (CvDEPTH (cv)))
506 { 545 {
507 EXTEND (SP, 3); 546 EXTEND (SP, 3);
508 PUSHs ((SV *)CvPADLIST (cv)); 547 PUSHs ((SV *)CvPADLIST (cv));
509 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 548 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
510 PUSHs ((SV *)cv); 549 PUSHs ((SV *)cv);
511 550
512 CvDEPTH (cv) = 0; 551 CvDEPTH (cv) = 0;
513 get_padlist (aTHX_ cv); 552 get_padlist (aTHX_ cv);
514 } 553 }
… …
594 633
595 New(54,PL_savestack,24,ANY); 634 New(54,PL_savestack,24,ANY);
596 PL_savestack_ix = 0; 635 PL_savestack_ix = 0;
597 PL_savestack_max = 24; 636 PL_savestack_max = 24;
598 637
599#if !PERL_VERSION_ATLEAST (5,9,0) 638#if !PERL_VERSION_ATLEAST (5,10,0)
600 New(54,PL_retstack,4,OP*); 639 New(54,PL_retstack,4,OP*);
601 PL_retstack_ix = 0; 640 PL_retstack_ix = 0;
602 PL_retstack_max = 4; 641 PL_retstack_max = 4;
603#endif 642#endif
604} 643}
… …
606 645
607/* 646/*
608 * destroy the stacks, the callchain etc... 647 * destroy the stacks, the callchain etc...
609 */ 648 */
610static void 649static void
611coro_destroy_stacks (pTHX) 650coro_destruct_stacks (pTHX)
612{ 651{
613 while (PL_curstackinfo->si_next) 652 while (PL_curstackinfo->si_next)
614 PL_curstackinfo = PL_curstackinfo->si_next; 653 PL_curstackinfo = PL_curstackinfo->si_next;
615 654
616 while (PL_curstackinfo) 655 while (PL_curstackinfo)
… …
627 666
628 Safefree (PL_tmps_stack); 667 Safefree (PL_tmps_stack);
629 Safefree (PL_markstack); 668 Safefree (PL_markstack);
630 Safefree (PL_scopestack); 669 Safefree (PL_scopestack);
631 Safefree (PL_savestack); 670 Safefree (PL_savestack);
632#if !PERL_VERSION_ATLEAST (5,9,0) 671#if !PERL_VERSION_ATLEAST (5,10,0)
633 Safefree (PL_retstack); 672 Safefree (PL_retstack);
634#endif 673#endif
635} 674}
636 675
637static size_t 676static size_t
… …
653 #undef VAR 692 #undef VAR
654 } 693 }
655 else 694 else
656 slot = coro->slot; 695 slot = coro->slot;
657 696
697 if (slot)
698 {
658 rss += sizeof (slot->curstackinfo); 699 rss += sizeof (slot->curstackinfo);
659 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 700 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
660 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 701 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
661 rss += slot->tmps_max * sizeof (SV *); 702 rss += slot->tmps_max * sizeof (SV *);
662 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); 703 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
663 rss += slot->scopestack_max * sizeof (I32); 704 rss += slot->scopestack_max * sizeof (I32);
664 rss += slot->savestack_max * sizeof (ANY); 705 rss += slot->savestack_max * sizeof (ANY);
665 706
666#if !PERL_VERSION_ATLEAST (5,9,0) 707#if !PERL_VERSION_ATLEAST (5,10,0)
667 rss += slot->retstack_max * sizeof (OP *); 708 rss += slot->retstack_max * sizeof (OP *);
668#endif 709#endif
710 }
669 } 711 }
670 712
671 return rss; 713 return rss;
672} 714}
673 715
716/** set stacklevel support **************************************************/
717
718/* we sometimes need to create the effect of pp_set_stacklevel calling us */
719#define SSL_HEAD (void)0
720/* we sometimes need to create the effect of leaving via pp_set_stacklevel */
721#define SSL_TAIL set_stacklevel_tail (aTHX)
722
723INLINE void
724set_stacklevel_tail (pTHX)
725{
726 dSP;
727 SV **bot = SP;
728
729 int gimme = GIMME_V;
730
731 /* make sure we put something on the stack in scalar context */
732 if (gimme == G_SCALAR)
733 {
734 if (sp == bot)
735 XPUSHs (&PL_sv_undef);
736
737 SP = bot + 1;
738 }
739
740 PUTBACK;
741}
742
674/** coroutine stack handling ************************************************/ 743/** coroutine stack handling ************************************************/
744
745static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
746static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
747static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
748
749/* apparently < 5.8.8 */
750#ifndef MgPV_nolen_const
751#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
752 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
753 (const char*)(mg)->mg_ptr)
754#endif
755
756/*
757 * This overrides the default magic get method of %SIG elements.
758 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
759 * and instead of tryign to save and restore the hash elements, we just provide
760 * readback here.
761 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
762 * not expecting this to actually change the hook. This is a potential problem
763 * when a schedule happens then, but we ignore this.
764 */
765static int
766coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
767{
768 const char *s = MgPV_nolen_const (mg);
769
770 if (*s == '_')
771 {
772 SV **svp = 0;
773
774 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
775 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
776
777 if (svp)
778 {
779 sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
780 return 0;
781 }
782 }
783
784 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
785}
786
787static int
788coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
789{
790 const char *s = MgPV_nolen_const (mg);
791
792 if (*s == '_')
793 {
794 SV **svp = 0;
795
796 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
797 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
798
799 if (svp)
800 {
801 SV *old = *svp;
802 *svp = 0;
803 SvREFCNT_dec (old);
804 return 0;
805 }
806 }
807
808 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
809}
810
811static int
812coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
813{
814 const char *s = MgPV_nolen_const (mg);
815
816 if (*s == '_')
817 {
818 SV **svp = 0;
819
820 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
821 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
822
823 if (svp)
824 {
825 SV *old = *svp;
826 *svp = newSVsv (sv);
827 SvREFCNT_dec (old);
828 return 0;
829 }
830 }
831
832 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
833}
675 834
676static void 835static void
677coro_setup (pTHX_ struct coro *coro) 836coro_setup (pTHX_ struct coro *coro)
678{ 837{
679 /* 838 /*
… …
688 PL_curpm = 0; 847 PL_curpm = 0;
689 PL_curpad = 0; 848 PL_curpad = 0;
690 PL_localizing = 0; 849 PL_localizing = 0;
691 PL_dirty = 0; 850 PL_dirty = 0;
692 PL_restartop = 0; 851 PL_restartop = 0;
693 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); 852#if PERL_VERSION_ATLEAST (5,10,0)
694 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); 853 PL_parser = 0;
854#endif
855
856 /* recreate the die/warn hooks */
857 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
858 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
695 859
696 GvSV (PL_defgv) = newSV (0); 860 GvSV (PL_defgv) = newSV (0);
697 GvAV (PL_defgv) = coro->args; coro->args = 0; 861 GvAV (PL_defgv) = coro->args; coro->args = 0;
698 GvSV (PL_errgv) = newSV (0); 862 GvSV (PL_errgv) = newSV (0);
699 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 863 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
700 PL_rs = newSVsv (GvSV (irsgv)); 864 PL_rs = newSVsv (GvSV (irsgv));
701 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); 865 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
702 866
703 { 867 {
704 dSP; 868 dSP;
705 LOGOP myop; 869 UNOP myop;
706 870
707 Zero (&myop, 1, LOGOP); 871 Zero (&myop, 1, UNOP);
708 myop.op_next = Nullop; 872 myop.op_next = Nullop;
709 myop.op_flags = OPf_WANT_VOID; 873 myop.op_flags = OPf_WANT_VOID;
710 874
711 PUSHMARK (SP); 875 PUSHMARK (SP);
712 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 876 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
713 PUTBACK; 877 PUTBACK;
714 PL_op = (OP *)&myop; 878 PL_op = (OP *)&myop;
715 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 879 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
716 SPAGAIN; 880 SPAGAIN;
717
718 /*
719 * now its very tricky. the "tail" of the next transfer might end up
720 * either in a new cctx, or an existing one.
721 * in case of an existing one we have to take care of whatever
722 * entersub and transfer do to the perl stack.
723 */
724 ENTER;
725 EXTEND (SP, 4);
726 PUSHs ((SV *)0); /* items */
727 PUSHs ((SV *)0); /* ix, set_stacklevel */
728 PUSHs ((SV *)(sp - PL_stack_base + 1)); /* ax */
729 PUSHs ((SV *)0); /* again */
730 PUTBACK;
731 } 881 }
732 882
733 /* this newly created coroutine might be run on an existing cctx which most 883 /* this newly created coroutine might be run on an existing cctx which most
734 * likely was suspended in set_stacklevel, called from entersub. 884 * likely was suspended in set_stacklevel, called from pp_set_stacklevel,
735 * set_stacklevl doesn't do anything on return, but entersub does LEAVE, 885 * so we have to emulate entering pp_set_stacklevel here.
736 * so we ENTER here for symmetry
737 */ 886 */
738 ENTER; 887 SSL_HEAD;
739} 888}
740 889
741static void 890static void
742coro_destroy (pTHX_ struct coro *coro) 891coro_destruct (pTHX_ struct coro *coro)
743{ 892{
744 if (!IN_DESTRUCT) 893 if (!IN_DESTRUCT)
745 { 894 {
746 /* restore all saved variables and stuff */ 895 /* restore all saved variables and stuff */
747 LEAVE_SCOPE (0); 896 LEAVE_SCOPE (0);
… …
769 SvREFCNT_dec (PL_warnhook); 918 SvREFCNT_dec (PL_warnhook);
770 919
771 SvREFCNT_dec (coro->saved_deffh); 920 SvREFCNT_dec (coro->saved_deffh);
772 SvREFCNT_dec (coro->throw); 921 SvREFCNT_dec (coro->throw);
773 922
774 coro_destroy_stacks (aTHX); 923 coro_destruct_stacks (aTHX);
775} 924}
776 925
777static void 926INLINE void
778free_coro_mortal (pTHX) 927free_coro_mortal (pTHX)
779{ 928{
780 if (expect_true (coro_mortal)) 929 if (expect_true (coro_mortal))
781 { 930 {
782 SvREFCNT_dec (coro_mortal); 931 SvREFCNT_dec (coro_mortal);
… …
816 : cx->blk_gimme == G_SCALAR ? bot + 1 965 : cx->blk_gimme == G_SCALAR ? bot + 1
817 : bot; 966 : bot;
818 967
819 av_extend (av, top - bot); 968 av_extend (av, top - bot);
820 while (bot < top) 969 while (bot < top)
821 av_push (av, SvREFCNT_inc (*bot++)); 970 av_push (av, SvREFCNT_inc_NN (*bot++));
822 971
823 PL_runops = RUNOPS_DEFAULT; 972 PL_runops = RUNOPS_DEFAULT;
824 ENTER; 973 ENTER;
825 SAVETMPS; 974 SAVETMPS;
826 EXTEND (SP, 3); 975 EXTEND (SP, 3);
827 PUSHMARK (SP); 976 PUSHMARK (SP);
828 PUSHs (&PL_sv_no); 977 PUSHs (&PL_sv_no);
829 PUSHs (fullname); 978 PUSHs (fullname);
830 PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 979 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
831 PUTBACK; 980 PUTBACK;
832 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 981 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
833 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 982 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
834 SPAGAIN; 983 SPAGAIN;
835 FREETMPS; 984 FREETMPS;
836 LEAVE; 985 LEAVE;
837 PL_runops = runops_trace; 986 PL_runops = runops_trace;
… …
864 SAVETMPS; 1013 SAVETMPS;
865 EXTEND (SP, 3); 1014 EXTEND (SP, 3);
866 PUSHMARK (SP); 1015 PUSHMARK (SP);
867 PUSHs (&PL_sv_yes); 1016 PUSHs (&PL_sv_yes);
868 PUSHs (fullname); 1017 PUSHs (fullname);
869 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
870 PUTBACK; 1019 PUTBACK;
871 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
872 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1021 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
873 SPAGAIN; 1022 SPAGAIN;
874 FREETMPS; 1023 FREETMPS;
875 LEAVE; 1024 LEAVE;
876 PL_runops = runops_trace; 1025 PL_runops = runops_trace;
… …
890 PL_runops = RUNOPS_DEFAULT; 1039 PL_runops = RUNOPS_DEFAULT;
891 PUSHMARK (SP); 1040 PUSHMARK (SP);
892 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); 1041 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
893 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); 1042 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
894 PUTBACK; 1043 PUTBACK;
895 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); 1044 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
896 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1045 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
897 SPAGAIN; 1046 SPAGAIN;
898 FREETMPS; 1047 FREETMPS;
899 LEAVE; 1048 LEAVE;
900 PL_runops = runops_trace; 1049 PL_runops = runops_trace;
… …
906 1055
907 TAINT_NOT; 1056 TAINT_NOT;
908 return 0; 1057 return 0;
909} 1058}
910 1059
1060static void
1061prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1062{
1063 ta->prev = (struct coro *)cctx;
1064 ta->next = 0;
1065}
1066
911/* inject a fake call to Coro::State::_cctx_init into the execution */ 1067/* inject a fake call to Coro::State::_cctx_init into the execution */
912/* _cctx_init should be careful, as it could be called at almost any time */ 1068/* _cctx_init should be careful, as it could be called at almost any time */
913/* during execution of a perl program */ 1069/* during execution of a perl program */
1070/* also initialises PL_top_env */
914static void NOINLINE 1071static void NOINLINE
915cctx_prepare (pTHX_ coro_cctx *cctx) 1072cctx_prepare (pTHX_ coro_cctx *cctx)
916{ 1073{
917 dSP; 1074 dSP;
918 LOGOP myop; 1075 UNOP myop;
919 1076
920 PL_top_env = &PL_start_env; 1077 PL_top_env = &PL_start_env;
921 1078
922 if (cctx->flags & CC_TRACE) 1079 if (cctx->flags & CC_TRACE)
923 PL_runops = runops_trace; 1080 PL_runops = runops_trace;
924 1081
925 Zero (&myop, 1, LOGOP); 1082 Zero (&myop, 1, UNOP);
926 myop.op_next = PL_op; 1083 myop.op_next = PL_op;
927 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1084 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
928 1085
929 PUSHMARK (SP); 1086 PUSHMARK (SP);
930 EXTEND (SP, 2); 1087 EXTEND (SP, 2);
931 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1088 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
932 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1089 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
933 PUTBACK; 1090 PUTBACK;
934 PL_op = (OP *)&myop; 1091 PL_op = (OP *)&myop;
935 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1092 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
936 SPAGAIN; 1093 SPAGAIN;
937} 1094}
938 1095
1096/* the tail of transfer: execute stuff we can only do after a transfer */
1097INLINE void
1098transfer_tail (pTHX)
1099{
1100 struct coro *next = (struct coro *)transfer_next;
1101 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1102 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1103
1104 free_coro_mortal (aTHX);
1105 UNLOCK;
1106
1107 if (expect_false (next->throw))
1108 {
1109 SV *exception = sv_2mortal (next->throw);
1110
1111 next->throw = 0;
1112 sv_setsv (ERRSV, exception);
1113 croak (0);
1114 }
1115}
1116
939/* 1117/*
940 * this is a _very_ stripped down perl interpreter ;) 1118 * this is a _very_ stripped down perl interpreter ;)
941 */ 1119 */
942static void 1120static void
943cctx_run (void *arg) 1121cctx_run (void *arg)
944{ 1122{
1123#ifdef USE_ITHREADS
1124# if CORO_PTHREAD
1125 PERL_SET_CONTEXT (coro_thx);
1126# endif
1127#endif
1128 {
945 dTHX; 1129 dTHX;
946 1130
947 /* cctx_run is the alternative tail of transfer(), so unlock here. */ 1131 /* we are the alternative tail to pp_set_stacklevel */
948 UNLOCK; 1132 /* so do the same things here */
1133 SSL_TAIL;
949 1134
950 /* we now skip the entersub that lead to transfer() */ 1135 /* we now skip the op that did lead to transfer() */
951 PL_op = PL_op->op_next; 1136 PL_op = PL_op->op_next;
952 1137
953 /* inject a fake subroutine call to cctx_init */ 1138 /* inject a fake subroutine call to cctx_init */
954 cctx_prepare (aTHX_ (coro_cctx *)arg); 1139 cctx_prepare (aTHX_ (coro_cctx *)arg);
955 1140
1141 /* cctx_run is the alternative tail of transfer() */
1142 transfer_tail (aTHX);
1143
956 /* somebody or something will hit me for both perl_run and PL_restartop */ 1144 /* somebody or something will hit me for both perl_run and PL_restartop */
957 PL_restartop = PL_op; 1145 PL_restartop = PL_op;
958 perl_run (PL_curinterp); 1146 perl_run (PL_curinterp);
959 1147
960 /* 1148 /*
961 * If perl-run returns we assume exit() was being called or the coro 1149 * If perl-run returns we assume exit() was being called or the coro
962 * fell off the end, which seems to be the only valid (non-bug) 1150 * fell off the end, which seems to be the only valid (non-bug)
963 * reason for perl_run to return. We try to exit by jumping to the 1151 * reason for perl_run to return. We try to exit by jumping to the
964 * bootstrap-time "top" top_env, as we cannot restore the "main" 1152 * bootstrap-time "top" top_env, as we cannot restore the "main"
965 * coroutine as Coro has no such concept 1153 * coroutine as Coro has no such concept
966 */ 1154 */
967 PL_top_env = main_top_env; 1155 PL_top_env = main_top_env;
968 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1156 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1157 }
969} 1158}
970 1159
971static coro_cctx * 1160static coro_cctx *
972cctx_new () 1161cctx_new ()
973{ 1162{
974 coro_cctx *cctx; 1163 coro_cctx *cctx;
1164
1165 ++cctx_count;
1166 New (0, cctx, 1, coro_cctx);
1167
1168 cctx->gen = cctx_gen;
1169 cctx->flags = 0;
1170 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1171
1172 return cctx;
1173}
1174
1175/* create a new cctx only suitable as source */
1176static coro_cctx *
1177cctx_new_empty ()
1178{
1179 coro_cctx *cctx = cctx_new ();
1180
1181 cctx->sptr = 0;
1182 coro_create (&cctx->cctx, 0, 0, 0, 0);
1183
1184 return cctx;
1185}
1186
1187/* create a new cctx suitable as destination/running a perl interpreter */
1188static coro_cctx *
1189cctx_new_run ()
1190{
1191 coro_cctx *cctx = cctx_new ();
975 void *stack_start; 1192 void *stack_start;
976 size_t stack_size; 1193 size_t stack_size;
977 1194
978 ++cctx_count;
979
980 Newz (0, cctx, 1, coro_cctx);
981
982#if HAVE_MMAP 1195#if HAVE_MMAP
983 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1196 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
984 /* mmap supposedly does allocate-on-write for us */ 1197 /* mmap supposedly does allocate-on-write for us */
985 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1198 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
986 1199
987 if (cctx->sptr != (void *)-1) 1200 if (cctx->sptr != (void *)-1)
988 { 1201 {
989# if CORO_STACKGUARD 1202 #if CORO_STACKGUARD
990 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1203 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
991# endif 1204 #endif
992 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1205 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
993 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1206 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
994 cctx->flags |= CC_MAPPED; 1207 cctx->flags |= CC_MAPPED;
995 } 1208 }
996 else 1209 else
997#endif 1210#endif
998 { 1211 {
999 cctx->ssize = coro_stacksize * (long)sizeof (long); 1212 cctx->ssize = cctx_stacksize * (long)sizeof (long);
1000 New (0, cctx->sptr, coro_stacksize, long); 1213 New (0, cctx->sptr, cctx_stacksize, long);
1001 1214
1002 if (!cctx->sptr) 1215 if (!cctx->sptr)
1003 { 1216 {
1004 perror ("FATAL: unable to allocate stack for coroutine"); 1217 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
1005 _exit (EXIT_FAILURE); 1218 _exit (EXIT_FAILURE);
1006 } 1219 }
1007 1220
1008 stack_start = cctx->sptr; 1221 stack_start = cctx->sptr;
1009 stack_size = cctx->ssize; 1222 stack_size = cctx->ssize;
1010 } 1223 }
1011 1224
1012 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1225 #if CORO_USE_VALGRIND
1226 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1227 #endif
1228
1013 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1229 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
1014 1230
1015 return cctx; 1231 return cctx;
1016} 1232}
1017 1233
… …
1020{ 1236{
1021 if (!cctx) 1237 if (!cctx)
1022 return; 1238 return;
1023 1239
1024 --cctx_count; 1240 --cctx_count;
1241 coro_destroy (&cctx->cctx);
1025 1242
1243 /* coro_transfer creates new, empty cctx's */
1244 if (cctx->sptr)
1245 {
1026#if CORO_USE_VALGRIND 1246 #if CORO_USE_VALGRIND
1027 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1247 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1028#endif 1248 #endif
1029 1249
1030#if HAVE_MMAP 1250#if HAVE_MMAP
1031 if (cctx->flags & CC_MAPPED) 1251 if (cctx->flags & CC_MAPPED)
1032 munmap (cctx->sptr, cctx->ssize); 1252 munmap (cctx->sptr, cctx->ssize);
1033 else 1253 else
1034#endif 1254#endif
1035 Safefree (cctx->sptr); 1255 Safefree (cctx->sptr);
1256 }
1036 1257
1037 Safefree (cctx); 1258 Safefree (cctx);
1038} 1259}
1039 1260
1040/* wether this cctx should be destructed */ 1261/* wether this cctx should be destructed */
1041#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1262#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1042 1263
1043static coro_cctx * 1264static coro_cctx *
1044cctx_get (pTHX_ int gimme) 1265cctx_get (pTHX)
1045{ 1266{
1046 while (expect_true (cctx_first[gimme])) 1267 while (expect_true (cctx_first))
1047 { 1268 {
1048 coro_cctx *cctx = cctx_first[gimme]; 1269 coro_cctx *cctx = cctx_first;
1049 cctx_first[gimme] = cctx->next; 1270 cctx_first = cctx->next;
1050 --cctx_idle[gimme]; 1271 --cctx_idle;
1051 1272
1052 if (expect_true (!CCTX_EXPIRED (cctx))) 1273 if (expect_true (!CCTX_EXPIRED (cctx)))
1053 return cctx; 1274 return cctx;
1054 1275
1055 cctx_destroy (cctx); 1276 cctx_destroy (cctx);
1056 } 1277 }
1057 1278
1058 assert (!gimme);
1059 return cctx_new (); 1279 return cctx_new_run ();
1060} 1280}
1061 1281
1062static void 1282static void
1063cctx_put (coro_cctx *cctx, int gimme) 1283cctx_put (coro_cctx *cctx)
1064{ 1284{
1285 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1286
1065 /* free another cctx if overlimit */ 1287 /* free another cctx if overlimit */
1066 if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX)) 1288 if (expect_false (cctx_idle >= cctx_max_idle))
1067 { 1289 {
1068 coro_cctx *first = cctx_first[gimme]; 1290 coro_cctx *first = cctx_first;
1069 cctx_first[gimme] = first->next; 1291 cctx_first = first->next;
1070 --cctx_idle[gimme]; 1292 --cctx_idle;
1071 1293
1072 cctx_destroy (first); 1294 cctx_destroy (first);
1073 } 1295 }
1074 1296
1075 ++cctx_idle[gimme]; 1297 ++cctx_idle;
1076 cctx->next = cctx_first[gimme]; 1298 cctx->next = cctx_first;
1077 cctx_first[gimme] = cctx; 1299 cctx_first = cctx;
1078} 1300}
1079 1301
1080/** coroutine switching *****************************************************/ 1302/** coroutine switching *****************************************************/
1081 1303
1082static void 1304static void
… …
1091 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1313 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1092 1314
1093 if (expect_false (next->flags & CF_DESTROYED)) 1315 if (expect_false (next->flags & CF_DESTROYED))
1094 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1316 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1095 1317
1096 if (
1097#if PERL_VERSION_ATLEAST (5,9,0) 1318#if !PERL_VERSION_ATLEAST (5,10,0)
1098 expect_false (PL_parser)
1099#else
1100 expect_false (PL_lex_state != LEX_NOTPARSING) 1319 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1101#endif
1102 )
1103 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1320 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1321#endif
1104 } 1322 }
1105} 1323}
1106 1324
1107/* always use the TRANSFER macro */ 1325/* always use the TRANSFER macro */
1108static void NOINLINE 1326static void NOINLINE
1109transfer (pTHX_ struct coro *prev, struct coro *next) 1327transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1110{ 1328{
1111 dSTACKLEVEL; 1329 dSTACKLEVEL;
1112 1330
1113 /* sometimes transfer is only called to set idle_sp */ 1331 /* sometimes transfer is only called to set idle_sp */
1114 if (expect_false (!next)) 1332 if (expect_false (!next))
… …
1120 { 1338 {
1121 coro_cctx *prev__cctx; 1339 coro_cctx *prev__cctx;
1122 1340
1123 if (expect_false (prev->flags & CF_NEW)) 1341 if (expect_false (prev->flags & CF_NEW))
1124 { 1342 {
1125 /* create a new empty context */ 1343 /* create a new empty/source context */
1126 Newz (0, prev->cctx, 1, coro_cctx); 1344 prev->cctx = cctx_new_empty ();
1127 prev->flags &= ~CF_NEW; 1345 prev->flags &= ~CF_NEW;
1128 prev->flags |= CF_RUNNING; 1346 prev->flags |= CF_RUNNING;
1129 } 1347 }
1130 1348
1131 prev->flags &= ~CF_RUNNING; 1349 prev->flags &= ~CF_RUNNING;
1132 next->flags |= CF_RUNNING; 1350 next->flags |= CF_RUNNING;
1133 1351
1134 LOCK; 1352 LOCK;
1353
1354 /* first get rid of the old state */
1355 save_perl (aTHX_ prev);
1135 1356
1136 if (expect_false (next->flags & CF_NEW)) 1357 if (expect_false (next->flags & CF_NEW))
1137 { 1358 {
1138 /* need to start coroutine */ 1359 /* need to start coroutine */
1139 next->flags &= ~CF_NEW; 1360 next->flags &= ~CF_NEW;
1140 /* first get rid of the old state */
1141 save_perl (aTHX_ prev);
1142 /* setup coroutine call */ 1361 /* setup coroutine call */
1143 coro_setup (aTHX_ next); 1362 coro_setup (aTHX_ next);
1144 } 1363 }
1145 else 1364 else
1146 {
1147 /* coroutine already started */
1148 save_perl (aTHX_ prev);
1149 load_perl (aTHX_ next); 1365 load_perl (aTHX_ next);
1150 }
1151 1366
1152 prev__cctx = prev->cctx; 1367 prev__cctx = prev->cctx;
1153 1368
1154 /* possibly "free" the cctx */ 1369 /* possibly untie and reuse the cctx */
1155 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) 1370 if (expect_true (
1371 prev__cctx->idle_sp == STACKLEVEL
1372 && !(prev__cctx->flags & CC_TRACE)
1373 && !force_cctx
1374 ))
1156 { 1375 {
1157 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1376 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1158 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1377 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1159 1378
1160 prev->cctx = 0; 1379 prev->cctx = 0;
1161 1380
1162 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1381 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1163 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1382 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1164 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1383 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1165 if (!next->cctx) 1384 if (!next->cctx)
1166 next->cctx = cctx_get (aTHX_ next->gimme); 1385 next->cctx = cctx_get (aTHX);
1167 1386
1168 cctx_put (prev__cctx, prev->gimme); 1387 cctx_put (prev__cctx);
1169 } 1388 }
1170 1389
1171 ++next->usecount; 1390 ++next->usecount;
1172 1391
1173 if (expect_true (!next->cctx)) 1392 if (expect_true (!next->cctx))
1174 next->cctx = cctx_get (aTHX_ next->gimme); 1393 next->cctx = cctx_get (aTHX);
1394
1395 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1396 transfer_next = next;
1175 1397
1176 if (expect_false (prev__cctx != next->cctx)) 1398 if (expect_false (prev__cctx != next->cctx))
1177 { 1399 {
1178 prev__cctx->top_env = PL_top_env; 1400 prev__cctx->top_env = PL_top_env;
1179 PL_top_env = next->cctx->top_env; 1401 PL_top_env = next->cctx->top_env;
1180 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1402 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1181 } 1403 }
1182 1404
1183 free_coro_mortal (aTHX); 1405 transfer_tail (aTHX);
1184 UNLOCK;
1185
1186 if (expect_false (prev->throw || next->throw))
1187 {
1188 struct coro *coro = SvSTATE (coro_current);
1189
1190 if (coro->throw)
1191 {
1192 SV *exception = coro->throw;
1193 coro->throw = 0;
1194 sv_setsv (ERRSV, exception);
1195 croak (0);
1196 }
1197 }
1198 } 1406 }
1199} 1407}
1200 1408
1201struct transfer_args
1202{
1203 struct coro *prev, *next;
1204};
1205
1206#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1409#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1207#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1410#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1208 1411
1209/** high level stuff ********************************************************/ 1412/** high level stuff ********************************************************/
1210 1413
1211static int 1414static int
… …
1235 croak ("FATAL: tried to destroy currently running coroutine"); 1438 croak ("FATAL: tried to destroy currently running coroutine");
1236 1439
1237 save_perl (aTHX_ &temp); 1440 save_perl (aTHX_ &temp);
1238 load_perl (aTHX_ coro); 1441 load_perl (aTHX_ coro);
1239 1442
1240 coro_destroy (aTHX_ coro); 1443 coro_destruct (aTHX_ coro);
1241 1444
1242 load_perl (aTHX_ &temp); 1445 load_perl (aTHX_ &temp);
1243 1446
1244 coro->slot = 0; 1447 coro->slot = 0;
1245 } 1448 }
… …
1305{ 1508{
1306 dTHX; 1509 dTHX;
1307 struct transfer_args ta; 1510 struct transfer_args ta;
1308 1511
1309 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1512 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1310 TRANSFER (ta); 1513 TRANSFER (ta, 1);
1311} 1514}
1312 1515
1313/** Coro ********************************************************************/ 1516/** Coro ********************************************************************/
1314 1517
1315static void 1518static void
… …
1317{ 1520{
1318 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1521 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1319} 1522}
1320 1523
1321static SV * 1524static SV *
1322coro_deq (pTHX_ int min_prio) 1525coro_deq (pTHX)
1323{ 1526{
1324 int prio = PRIO_MAX - PRIO_MIN; 1527 int prio;
1325 1528
1326 min_prio -= PRIO_MIN;
1327 if (min_prio < 0)
1328 min_prio = 0;
1329
1330 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1529 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1331 if (AvFILLp (coro_ready [prio]) >= 0) 1530 if (AvFILLp (coro_ready [prio]) >= 0)
1332 return av_shift (coro_ready [prio]); 1531 return av_shift (coro_ready [prio]);
1333 1532
1334 return 0; 1533 return 0;
1335} 1534}
… …
1337static int 1536static int
1338api_ready (SV *coro_sv) 1537api_ready (SV *coro_sv)
1339{ 1538{
1340 dTHX; 1539 dTHX;
1341 struct coro *coro; 1540 struct coro *coro;
1541 SV *sv_hook;
1542 void (*xs_hook)(void);
1342 1543
1343 if (SvROK (coro_sv)) 1544 if (SvROK (coro_sv))
1344 coro_sv = SvRV (coro_sv); 1545 coro_sv = SvRV (coro_sv);
1345 1546
1346 coro = SvSTATE (coro_sv); 1547 coro = SvSTATE (coro_sv);
… …
1349 return 0; 1550 return 0;
1350 1551
1351 coro->flags |= CF_READY; 1552 coro->flags |= CF_READY;
1352 1553
1353 LOCK; 1554 LOCK;
1555
1556 sv_hook = coro_nready ? 0 : coro_readyhook;
1557 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1558
1354 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1559 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1355 ++coro_nready; 1560 ++coro_nready;
1561
1356 UNLOCK; 1562 UNLOCK;
1563
1564 if (sv_hook)
1565 {
1566 dSP;
1567
1568 ENTER;
1569 SAVETMPS;
1570
1571 PUSHMARK (SP);
1572 PUTBACK;
1573 call_sv (sv_hook, G_DISCARD);
1574 SPAGAIN;
1575
1576 FREETMPS;
1577 LEAVE;
1578 }
1579
1580 if (xs_hook)
1581 xs_hook ();
1357 1582
1358 return 1; 1583 return 1;
1359} 1584}
1360 1585
1361static int 1586static int
1362api_is_ready (SV *coro_sv) 1587api_is_ready (SV *coro_sv)
1363{ 1588{
1364 dTHX; 1589 dTHX;
1590
1365 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1591 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1366} 1592}
1367 1593
1368static void 1594INLINE void
1369prepare_schedule (pTHX_ struct transfer_args *ta) 1595prepare_schedule (pTHX_ struct transfer_args *ta)
1370{ 1596{
1371 SV *prev_sv, *next_sv; 1597 SV *prev_sv, *next_sv;
1372 1598
1373 for (;;) 1599 for (;;)
1374 { 1600 {
1375 LOCK; 1601 LOCK;
1376 next_sv = coro_deq (aTHX_ PRIO_MIN); 1602 next_sv = coro_deq (aTHX);
1377 1603
1378 /* nothing to schedule: call the idle handler */ 1604 /* nothing to schedule: call the idle handler */
1379 if (expect_false (!next_sv)) 1605 if (expect_false (!next_sv))
1380 { 1606 {
1381 dSP; 1607 dSP;
… …
1385 SAVETMPS; 1611 SAVETMPS;
1386 1612
1387 PUSHMARK (SP); 1613 PUSHMARK (SP);
1388 PUTBACK; 1614 PUTBACK;
1389 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1615 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1616 SPAGAIN;
1390 1617
1391 FREETMPS; 1618 FREETMPS;
1392 LEAVE; 1619 LEAVE;
1393 continue; 1620 continue;
1394 } 1621 }
… …
1398 /* cannot transfer to destroyed coros, skip and look for next */ 1625 /* cannot transfer to destroyed coros, skip and look for next */
1399 if (expect_false (ta->next->flags & CF_DESTROYED)) 1626 if (expect_false (ta->next->flags & CF_DESTROYED))
1400 { 1627 {
1401 UNLOCK; 1628 UNLOCK;
1402 SvREFCNT_dec (next_sv); 1629 SvREFCNT_dec (next_sv);
1403 /* coro_nready is already taken care of by destroy */ 1630 /* coro_nready has already been taken care of by destroy */
1404 continue; 1631 continue;
1405 } 1632 }
1406 1633
1407 --coro_nready; 1634 --coro_nready;
1408 UNLOCK; 1635 UNLOCK;
… …
1411 1638
1412 /* free this only after the transfer */ 1639 /* free this only after the transfer */
1413 prev_sv = SvRV (coro_current); 1640 prev_sv = SvRV (coro_current);
1414 ta->prev = SvSTATE (prev_sv); 1641 ta->prev = SvSTATE (prev_sv);
1415 TRANSFER_CHECK (*ta); 1642 TRANSFER_CHECK (*ta);
1416 assert (ta->next->flags & CF_READY); 1643 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1417 ta->next->flags &= ~CF_READY; 1644 ta->next->flags &= ~CF_READY;
1418 SvRV_set (coro_current, next_sv); 1645 SvRV_set (coro_current, next_sv);
1419 1646
1420 LOCK; 1647 LOCK;
1421 free_coro_mortal (aTHX); 1648 free_coro_mortal (aTHX);
1422 coro_mortal = prev_sv; 1649 coro_mortal = prev_sv;
1423 UNLOCK; 1650 UNLOCK;
1424} 1651}
1425 1652
1426static void 1653INLINE void
1427prepare_cede (pTHX_ struct transfer_args *ta) 1654prepare_cede (pTHX_ struct transfer_args *ta)
1428{ 1655{
1429 api_ready (coro_current); 1656 api_ready (coro_current);
1430 prepare_schedule (aTHX_ ta); 1657 prepare_schedule (aTHX_ ta);
1431} 1658}
1432 1659
1433static int 1660static void
1434prepare_cede_notself (pTHX_ struct transfer_args *ta) 1661prepare_cede_notself (pTHX_ struct transfer_args *ta)
1435{ 1662{
1663 SV *prev = SvRV (coro_current);
1664
1436 if (coro_nready) 1665 if (coro_nready)
1437 { 1666 {
1438 SV *prev = SvRV (coro_current);
1439 prepare_schedule (aTHX_ ta); 1667 prepare_schedule (aTHX_ ta);
1440 api_ready (prev); 1668 api_ready (prev);
1669 }
1670 else
1671 ta->prev = ta->next = SvSTATE (prev);
1672}
1673
1674static void
1675api_schedule (void)
1676{
1677 dTHX;
1678 struct transfer_args ta;
1679
1680 prepare_schedule (aTHX_ &ta);
1681 TRANSFER (ta, 1);
1682}
1683
1684static int
1685api_cede (void)
1686{
1687 dTHX;
1688 struct transfer_args ta;
1689
1690 prepare_cede (aTHX_ &ta);
1691
1692 if (expect_true (ta.prev != ta.next))
1693 {
1694 TRANSFER (ta, 1);
1441 return 1; 1695 return 1;
1442 } 1696 }
1443 else 1697 else
1444 return 0; 1698 return 0;
1445} 1699}
1446 1700
1447static void
1448api_schedule (void)
1449{
1450 dTHX;
1451 struct transfer_args ta;
1452
1453 prepare_schedule (aTHX_ &ta);
1454 TRANSFER (ta);
1455}
1456
1457static int 1701static int
1458api_cede (void) 1702api_cede_notself (void)
1459{ 1703{
1704 if (coro_nready)
1705 {
1460 dTHX; 1706 dTHX;
1461 struct transfer_args ta; 1707 struct transfer_args ta;
1462 1708
1463 prepare_cede (aTHX_ &ta); 1709 prepare_cede_notself (aTHX_ &ta);
1464
1465 if (expect_true (ta.prev != ta.next))
1466 {
1467 TRANSFER (ta); 1710 TRANSFER (ta, 1);
1468 return 1; 1711 return 1;
1469 } 1712 }
1470 else 1713 else
1471 return 0; 1714 return 0;
1472} 1715}
1473 1716
1474static int
1475api_cede_notself (void)
1476{
1477 dTHX;
1478 struct transfer_args ta;
1479
1480 if (prepare_cede_notself (aTHX_ &ta))
1481 {
1482 TRANSFER (ta);
1483 return 1;
1484 }
1485 else
1486 return 0;
1487}
1488
1489static void 1717static void
1490api_trace (SV *coro_sv, int flags) 1718api_trace (SV *coro_sv, int flags)
1491{ 1719{
1492 dTHX; 1720 dTHX;
1493 struct coro *coro = SvSTATE (coro_sv); 1721 struct coro *coro = SvSTATE (coro_sv);
1494 1722
1495 if (flags & CC_TRACE) 1723 if (flags & CC_TRACE)
1496 { 1724 {
1497 if (!coro->cctx) 1725 if (!coro->cctx)
1498 coro->cctx = cctx_new (); 1726 coro->cctx = cctx_new_run ();
1499 else if (!(coro->cctx->flags & CC_TRACE)) 1727 else if (!(coro->cctx->flags & CC_TRACE))
1500 croak ("cannot enable tracing on coroutine with custom stack"); 1728 croak ("cannot enable tracing on coroutine with custom stack");
1501 1729
1502 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1730 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1503 } 1731 }
… …
1510 else 1738 else
1511 coro->slot->runops = RUNOPS_DEFAULT; 1739 coro->slot->runops = RUNOPS_DEFAULT;
1512 } 1740 }
1513} 1741}
1514 1742
1743#if 0
1744static int
1745coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1746{
1747 AV *padlist;
1748 AV *av = (AV *)mg->mg_obj;
1749
1750 abort ();
1751
1752 return 0;
1753}
1754
1755static MGVTBL coro_gensub_vtbl = {
1756 0, 0, 0, 0,
1757 coro_gensub_free
1758};
1759#endif
1760
1761/*****************************************************************************/
1762/* PerlIO::cede */
1763
1764typedef struct
1765{
1766 PerlIOBuf base;
1767 NV next, every;
1768} PerlIOCede;
1769
1770static IV
1771PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
1772{
1773 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1774
1775 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
1776 self->next = nvtime () + self->every;
1777
1778 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
1779}
1780
1781static SV *
1782PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
1783{
1784 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1785
1786 return newSVnv (self->every);
1787}
1788
1789static IV
1790PerlIOCede_flush (pTHX_ PerlIO *f)
1791{
1792 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1793 double now = nvtime ();
1794
1795 if (now >= self->next)
1796 {
1797 api_cede ();
1798 self->next = now + self->every;
1799 }
1800
1801 return PerlIOBuf_flush (aTHX_ f);
1802}
1803
1804static PerlIO_funcs PerlIO_cede =
1805{
1806 sizeof(PerlIO_funcs),
1807 "cede",
1808 sizeof(PerlIOCede),
1809 PERLIO_K_DESTRUCT | PERLIO_K_RAW,
1810 PerlIOCede_pushed,
1811 PerlIOBuf_popped,
1812 PerlIOBuf_open,
1813 PerlIOBase_binmode,
1814 PerlIOCede_getarg,
1815 PerlIOBase_fileno,
1816 PerlIOBuf_dup,
1817 PerlIOBuf_read,
1818 PerlIOBuf_unread,
1819 PerlIOBuf_write,
1820 PerlIOBuf_seek,
1821 PerlIOBuf_tell,
1822 PerlIOBuf_close,
1823 PerlIOCede_flush,
1824 PerlIOBuf_fill,
1825 PerlIOBase_eof,
1826 PerlIOBase_error,
1827 PerlIOBase_clearerr,
1828 PerlIOBase_setlinebuf,
1829 PerlIOBuf_get_base,
1830 PerlIOBuf_bufsiz,
1831 PerlIOBuf_get_ptr,
1832 PerlIOBuf_get_cnt,
1833 PerlIOBuf_set_ptrcnt,
1834};
1835
1836/*****************************************************************************/
1837
1838static const CV *ssl_cv; /* for quick consistency check */
1839
1840static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1841static SV *ssl_arg0;
1842static SV *ssl_arg1;
1843
1844/* this restores the stack in the case we patched the entersub, to */
1845/* recreate the stack frame as perl will on following calls */
1846/* since entersub cleared the stack */
1847static OP *
1848pp_restore (pTHX)
1849{
1850 dSP;
1851
1852 PUSHMARK (SP);
1853
1854 EXTEND (SP, 3);
1855 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1856 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1857 PUSHs ((SV *)CvGV (ssl_cv));
1858
1859 RETURNOP (ssl_restore.op_first);
1860}
1861
1862#define OPpENTERSUB_SSL 15 /* the part of op_private entersub hopefully doesn't use */
1863
1864/* declare prototype */
1865XS(XS_Coro__State__set_stacklevel);
1866
1867/*
1868 * these not obviously related functions are all rolled into one
1869 * function to increase chances that they all will call transfer with the same
1870 * stack offset
1871 */
1872static OP *
1873pp_set_stacklevel (pTHX)
1874{
1875 dSP;
1876 struct transfer_args ta;
1877 SV **arg = PL_stack_base + TOPMARK + 1;
1878 int items = SP - arg; /* args without function object */
1879
1880 /* do a quick consistency check on the "function" object, and if it isn't */
1881 /* for us, divert to the real entersub */
1882 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1883 return PL_ppaddr[OP_ENTERSUB](aTHX);
1884
1885 /* pop args */
1886 SP = PL_stack_base + POPMARK;
1887
1888 if (!(PL_op->op_flags & OPf_STACKED))
1889 {
1890 /* ampersand-form of call, use @_ instead of stack */
1891 AV *av = GvAV (PL_defgv);
1892 arg = AvARRAY (av);
1893 items = AvFILLp (av) + 1;
1894 }
1895
1896 PUTBACK;
1897 switch (PL_op->op_private & OPpENTERSUB_SSL)
1898 {
1899 case 0:
1900 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1901 break;
1902
1903 case 1:
1904 if (items != 2)
1905 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1906
1907 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1908 break;
1909
1910 case 2:
1911 prepare_schedule (aTHX_ &ta);
1912 break;
1913
1914 case 3:
1915 prepare_cede (aTHX_ &ta);
1916 break;
1917
1918 case 4:
1919 prepare_cede_notself (aTHX_ &ta);
1920 break;
1921 }
1922
1923 TRANSFER (ta, 0);
1924 SPAGAIN;
1925
1926skip:
1927 PUTBACK;
1928 SSL_TAIL;
1929 SPAGAIN;
1930 RETURN;
1931}
1932
1933static void
1934coro_ssl_patch (pTHX_ CV *cv, int ix, SV **args, int items)
1935{
1936 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1937
1938 assert (("FATAL: ssl call with illegal CV value", CvGV (cv)));
1939 ssl_cv = cv;
1940
1941 /* we patch the op, and then re-run the whole call */
1942 /* we have to put some dummy argument on the stack for this to work */
1943 ssl_restore.op_next = (OP *)&ssl_restore;
1944 ssl_restore.op_type = OP_NULL;
1945 ssl_restore.op_ppaddr = pp_restore;
1946 ssl_restore.op_first = PL_op;
1947
1948 ssl_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0;
1949 ssl_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0;
1950
1951 PL_op->op_ppaddr = pp_set_stacklevel;
1952 PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */
1953
1954 PL_op = (OP *)&ssl_restore;
1955}
1956
1515MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1957MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1516 1958
1517PROTOTYPES: DISABLE 1959PROTOTYPES: DISABLE
1518 1960
1519BOOT: 1961BOOT:
1520{ 1962{
1521#ifdef USE_ITHREADS 1963#ifdef USE_ITHREADS
1522 MUTEX_INIT (&coro_mutex); 1964 MUTEX_INIT (&coro_lock);
1965# if CORO_PTHREAD
1966 coro_thx = PERL_GET_CONTEXT;
1967# endif
1523#endif 1968#endif
1524 BOOT_PAGESIZE; 1969 BOOT_PAGESIZE;
1525 1970
1526 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 1971 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1527 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 1972 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1528 1973
1974 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1975 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1976 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1977
1529 hv_sig = coro_get_hv ("SIG", TRUE); 1978 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1530 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); 1979 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1531 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); 1980 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1532
1533 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1534 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1535 1981
1536 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1982 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1537 1983
1538 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); 1984 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1539 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); 1985 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
… …
1544 main_top_env = PL_top_env; 1990 main_top_env = PL_top_env;
1545 1991
1546 while (main_top_env->je_prev) 1992 while (main_top_env->je_prev)
1547 main_top_env = main_top_env->je_prev; 1993 main_top_env = main_top_env->je_prev;
1548 1994
1549 coroapi.ver = CORO_API_VERSION; 1995 coroapi.ver = CORO_API_VERSION;
1550 coroapi.rev = CORO_API_REVISION; 1996 coroapi.rev = CORO_API_REVISION;
1551 coroapi.transfer = api_transfer; 1997 coroapi.transfer = api_transfer;
1998
1999 {
2000 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2001
2002 if (!svp) croak ("Time::HiRes is required");
2003 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2004
2005 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2006 }
1552 2007
1553 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2008 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1554} 2009}
1555 2010
1556SV * 2011SV *
1557new (char *klass, ...) 2012new (char *klass, ...)
1558 CODE: 2013 CODE:
1559{ 2014{
1560 struct coro *coro; 2015 struct coro *coro;
2016 MAGIC *mg;
1561 HV *hv; 2017 HV *hv;
1562 int i; 2018 int i;
1563 2019
1564 Newz (0, coro, 1, struct coro); 2020 Newz (0, coro, 1, struct coro);
1565 coro->args = newAV (); 2021 coro->args = newAV ();
… …
1568 if (coro_first) coro_first->prev = coro; 2024 if (coro_first) coro_first->prev = coro;
1569 coro->next = coro_first; 2025 coro->next = coro_first;
1570 coro_first = coro; 2026 coro_first = coro;
1571 2027
1572 coro->hv = hv = newHV (); 2028 coro->hv = hv = newHV ();
1573 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 2029 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2030 mg->mg_flags |= MGf_DUP;
1574 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 2031 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1575 2032
1576 av_extend (coro->args, items - 1); 2033 av_extend (coro->args, items - 1);
1577 for (i = 1; i < items; i++) 2034 for (i = 1; i < items; i++)
1578 av_push (coro->args, newSVsv (ST (i))); 2035 av_push (coro->args, newSVsv (ST (i)));
1579} 2036}
1580 OUTPUT: 2037 OUTPUT:
1581 RETVAL 2038 RETVAL
1582 2039
1583# these not obviously related functions are all rolled into the same xs
1584# function to increase chances that they all will call transfer with the same
1585# stack offset
1586void 2040void
1587_set_stacklevel (...) 2041_set_stacklevel (...)
1588 ALIAS: 2042 ALIAS:
1589 Coro::State::transfer = 1 2043 Coro::State::transfer = 1
1590 Coro::schedule = 2 2044 Coro::schedule = 2
1591 Coro::cede = 3 2045 Coro::cede = 3
1592 Coro::cede_notself = 4 2046 Coro::cede_notself = 4
1593 CODE: 2047 CODE:
1594{ 2048 coro_ssl_patch (aTHX_ cv, ix, &ST (0), items);
1595 struct transfer_args ta;
1596
1597 switch (ix)
1598 {
1599 case 0:
1600 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1601 ta.next = 0;
1602 break;
1603
1604 case 1:
1605 if (items != 2)
1606 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1607
1608 prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1609 break;
1610
1611 case 2:
1612 prepare_schedule (aTHX_ &ta);
1613 break;
1614
1615 case 3:
1616 prepare_cede (aTHX_ &ta);
1617 break;
1618
1619 case 4:
1620 if (!prepare_cede_notself (aTHX_ &ta))
1621 XSRETURN_EMPTY;
1622
1623 break;
1624 }
1625
1626 BARRIER;
1627 PUTBACK;
1628 TRANSFER (ta);
1629 SPAGAIN; /* might be the sp of a different coroutine now */
1630 /* be extra careful not to ever do anything after TRANSFER */
1631}
1632 2049
1633bool 2050bool
1634_destroy (SV *coro_sv) 2051_destroy (SV *coro_sv)
1635 CODE: 2052 CODE:
1636 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2053 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1637 OUTPUT: 2054 OUTPUT:
1638 RETVAL 2055 RETVAL
1639 2056
1640void 2057void
1641_exit (code) 2058_exit (int code)
1642 int code
1643 PROTOTYPE: $ 2059 PROTOTYPE: $
1644 CODE: 2060 CODE:
1645 _exit (code); 2061 _exit (code);
1646 2062
1647int 2063int
1648cctx_stacksize (int new_stacksize = 0) 2064cctx_stacksize (int new_stacksize = 0)
1649 CODE: 2065 CODE:
1650 RETVAL = coro_stacksize; 2066 RETVAL = cctx_stacksize;
1651 if (new_stacksize) 2067 if (new_stacksize)
2068 {
1652 coro_stacksize = new_stacksize; 2069 cctx_stacksize = new_stacksize;
2070 ++cctx_gen;
2071 }
2072 OUTPUT:
2073 RETVAL
2074
2075int
2076cctx_max_idle (int max_idle = 0)
2077 CODE:
2078 RETVAL = cctx_max_idle;
2079 if (max_idle > 1)
2080 cctx_max_idle = max_idle;
1653 OUTPUT: 2081 OUTPUT:
1654 RETVAL 2082 RETVAL
1655 2083
1656int 2084int
1657cctx_count () 2085cctx_count ()
… …
1661 RETVAL 2089 RETVAL
1662 2090
1663int 2091int
1664cctx_idle () 2092cctx_idle ()
1665 CODE: 2093 CODE:
1666 RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2]; 2094 RETVAL = cctx_idle;
1667 OUTPUT: 2095 OUTPUT:
1668 RETVAL 2096 RETVAL
1669 2097
1670void 2098void
1671list () 2099list ()
… …
1681call (Coro::State coro, SV *coderef) 2109call (Coro::State coro, SV *coderef)
1682 ALIAS: 2110 ALIAS:
1683 eval = 1 2111 eval = 1
1684 CODE: 2112 CODE:
1685{ 2113{
1686 if (coro->mainstack) 2114 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1687 { 2115 {
1688 struct coro temp; 2116 struct coro temp;
1689 2117
1690 if (!(coro->flags & CF_RUNNING)) 2118 if (!(coro->flags & CF_RUNNING))
1691 { 2119 {
2120 PUTBACK;
1692 save_perl (aTHX_ &temp); 2121 save_perl (aTHX_ &temp);
1693 load_perl (aTHX_ coro); 2122 load_perl (aTHX_ coro);
1694 } 2123 }
1695 2124
1696 { 2125 {
… …
1705 eval_sv (coderef, 0); 2134 eval_sv (coderef, 0);
1706 else 2135 else
1707 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 2136 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1708 2137
1709 POPSTACK; 2138 POPSTACK;
2139 SPAGAIN;
1710 FREETMPS; 2140 FREETMPS;
1711 LEAVE; 2141 LEAVE;
1712 PUTBACK; 2142 PUTBACK;
1713 } 2143 }
1714 2144
1715 if (!(coro->flags & CF_RUNNING)) 2145 if (!(coro->flags & CF_RUNNING))
1716 { 2146 {
1717 save_perl (aTHX_ coro); 2147 save_perl (aTHX_ coro);
1718 load_perl (aTHX_ &temp); 2148 load_perl (aTHX_ &temp);
2149 SPAGAIN;
1719 } 2150 }
1720 } 2151 }
1721} 2152}
1722 2153
1723SV * 2154SV *
… …
1732 RETVAL = boolSV (coro->flags & ix); 2163 RETVAL = boolSV (coro->flags & ix);
1733 OUTPUT: 2164 OUTPUT:
1734 RETVAL 2165 RETVAL
1735 2166
1736void 2167void
2168throw (Coro::State self, SV *throw = &PL_sv_undef)
2169 PROTOTYPE: $;$
2170 CODE:
2171 SvREFCNT_dec (self->throw);
2172 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2173
2174void
1737api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2175api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1738 2176
1739SV * 2177SV *
1740has_stack (Coro::State coro) 2178has_cctx (Coro::State coro)
1741 PROTOTYPE: $ 2179 PROTOTYPE: $
1742 CODE: 2180 CODE:
1743 RETVAL = boolSV (!!coro->cctx); 2181 RETVAL = boolSV (!!coro->cctx);
1744 OUTPUT: 2182 OUTPUT:
1745 RETVAL 2183 RETVAL
… …
1750 CODE: 2188 CODE:
1751 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2189 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1752 OUTPUT: 2190 OUTPUT:
1753 RETVAL 2191 RETVAL
1754 2192
1755IV 2193UV
1756rss (Coro::State coro) 2194rss (Coro::State coro)
1757 PROTOTYPE: $ 2195 PROTOTYPE: $
1758 ALIAS: 2196 ALIAS:
1759 usecount = 1 2197 usecount = 1
1760 CODE: 2198 CODE:
… …
1764 case 1: RETVAL = coro->usecount; break; 2202 case 1: RETVAL = coro->usecount; break;
1765 } 2203 }
1766 OUTPUT: 2204 OUTPUT:
1767 RETVAL 2205 RETVAL
1768 2206
2207void
2208force_cctx ()
2209 CODE:
2210 struct coro *coro = SvSTATE (coro_current);
2211 coro->cctx->idle_sp = 0;
2212
2213void
2214swap_defsv (Coro::State self)
2215 PROTOTYPE: $
2216 ALIAS:
2217 swap_defav = 1
2218 CODE:
2219 if (!self->slot)
2220 croak ("cannot swap state with coroutine that has no saved state");
2221 else
2222 {
2223 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2224 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2225
2226 SV *tmp = *src; *src = *dst; *dst = tmp;
2227 }
1769 2228
1770MODULE = Coro::State PACKAGE = Coro 2229MODULE = Coro::State PACKAGE = Coro
1771 2230
1772BOOT: 2231BOOT:
1773{ 2232{
1774 int i; 2233 int i;
1775 2234
1776 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1777 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1778 av_async_pool = coro_get_av ("Coro::async_pool", TRUE); 2235 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2236 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2237 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1779 2238
1780 coro_current = coro_get_sv ("Coro::current", FALSE); 2239 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1781 SvREADONLY_on (coro_current); 2240 SvREADONLY_on (coro_current);
1782 2241
1783 coro_stash = gv_stashpv ("Coro", TRUE); 2242 coro_stash = gv_stashpv ("Coro", TRUE);
1784 2243
1785 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 2244 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
… …
1791 2250
1792 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2251 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1793 coro_ready[i] = newAV (); 2252 coro_ready[i] = newAV ();
1794 2253
1795 { 2254 {
1796 SV *sv = perl_get_sv ("Coro::API", TRUE); 2255 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1797 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1798 2256
1799 coroapi.schedule = api_schedule; 2257 coroapi.schedule = api_schedule;
1800 coroapi.cede = api_cede; 2258 coroapi.cede = api_cede;
1801 coroapi.cede_notself = api_cede_notself; 2259 coroapi.cede_notself = api_cede_notself;
1802 coroapi.ready = api_ready; 2260 coroapi.ready = api_ready;
… …
1813void 2271void
1814_set_current (SV *current) 2272_set_current (SV *current)
1815 PROTOTYPE: $ 2273 PROTOTYPE: $
1816 CODE: 2274 CODE:
1817 SvREFCNT_dec (SvRV (coro_current)); 2275 SvREFCNT_dec (SvRV (coro_current));
1818 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 2276 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2277
2278void
2279_set_readyhook (SV *hook)
2280 PROTOTYPE: $
2281 CODE:
2282 LOCK;
2283 SvREFCNT_dec (coro_readyhook);
2284 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2285 UNLOCK;
1819 2286
1820int 2287int
1821prio (Coro::State coro, int newprio = 0) 2288prio (Coro::State coro, int newprio = 0)
1822 ALIAS: 2289 ALIAS:
1823 nice = 1 2290 nice = 1
… …
1853 CODE: 2320 CODE:
1854 RETVAL = coro_nready; 2321 RETVAL = coro_nready;
1855 OUTPUT: 2322 OUTPUT:
1856 RETVAL 2323 RETVAL
1857 2324
1858void
1859throw (Coro::State self, SV *throw = &PL_sv_undef)
1860 PROTOTYPE: $;$
1861 CODE:
1862 SvREFCNT_dec (self->throw);
1863 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1864
1865# for async_pool speedup 2325# for async_pool speedup
1866void 2326void
1867_pool_1 (SV *cb) 2327_pool_1 (SV *cb)
1868 CODE: 2328 CODE:
1869{ 2329{
1870 struct coro *coro = SvSTATE (coro_current); 2330 struct coro *coro = SvSTATE (coro_current);
1871 HV *hv = (HV *)SvRV (coro_current); 2331 HV *hv = (HV *)SvRV (coro_current);
1872 AV *defav = GvAV (PL_defgv); 2332 AV *defav = GvAV (PL_defgv);
1873 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); 2333 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1874 AV *invoke_av; 2334 AV *invoke_av;
1875 int i, len; 2335 int i, len;
1876 2336
1877 if (!invoke) 2337 if (!invoke)
2338 {
2339 SV *old = PL_diehook;
2340 PL_diehook = 0;
2341 SvREFCNT_dec (old);
1878 croak ("\3async_pool terminate\2\n"); 2342 croak ("\3async_pool terminate\2\n");
2343 }
1879 2344
1880 SvREFCNT_dec (coro->saved_deffh); 2345 SvREFCNT_dec (coro->saved_deffh);
1881 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 2346 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1882 2347
1883 hv_store (hv, "desc", sizeof ("desc") - 1, 2348 hv_store (hv, "desc", sizeof ("desc") - 1,
1884 newSVpvn (strpair ("[async_pool]")), 0); 2349 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1885 2350
1886 invoke_av = (AV *)SvRV (invoke); 2351 invoke_av = (AV *)SvRV (invoke);
1887 len = av_len (invoke_av); 2352 len = av_len (invoke_av);
1888 2353
1889 sv_setsv (cb, AvARRAY (invoke_av)[0]); 2354 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1890 2355
1891 if (len > 0) 2356 if (len > 0)
1892 { 2357 {
1893 av_fill (defav, len - 1); 2358 av_fill (defav, len - 1);
1894 for (i = 0; i < len; ++i) 2359 for (i = 0; i < len; ++i)
1895 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 2360 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1896 } 2361 }
1897 2362
1898 SvREFCNT_dec (invoke); 2363 SvREFCNT_dec (invoke);
1899} 2364}
1900 2365
… …
1907 sv_setsv (cb, &PL_sv_undef); 2372 sv_setsv (cb, &PL_sv_undef);
1908 2373
1909 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2374 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1910 coro->saved_deffh = 0; 2375 coro->saved_deffh = 0;
1911 2376
1912 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2377 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1913 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2378 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2379 {
2380 SV *old = PL_diehook;
2381 PL_diehook = 0;
2382 SvREFCNT_dec (old);
1914 croak ("\3async_pool terminate\2\n"); 2383 croak ("\3async_pool terminate\2\n");
2384 }
1915 2385
1916 av_clear (GvAV (PL_defgv)); 2386 av_clear (GvAV (PL_defgv));
1917 hv_store ((HV *)SvRV (coro_current), strpair ("desc"), 2387 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1918 newSVpvn (strpair ("[async_pool idle]")), 0); 2388 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1919 2389
1920 coro->prio = 0; 2390 coro->prio = 0;
1921 2391
1922 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2392 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1923 api_trace (coro_current, 0); 2393 api_trace (coro_current, 0);
1924 2394
1925 av_push (av_async_pool, newSVsv (coro_current)); 2395 av_push (av_async_pool, newSVsv (coro_current));
1926} 2396}
1927 2397
2398#if 0
2399
2400void
2401_generator_call (...)
2402 PROTOTYPE: @
2403 PPCODE:
2404 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2405 xxxx
2406 abort ();
2407
2408SV *
2409gensub (SV *sub, ...)
2410 PROTOTYPE: &;@
2411 CODE:
2412{
2413 struct coro *coro;
2414 MAGIC *mg;
2415 CV *xcv;
2416 CV *ncv = (CV *)newSV_type (SVt_PVCV);
2417 int i;
2418
2419 CvGV (ncv) = CvGV (cv);
2420 CvFILE (ncv) = CvFILE (cv);
2421
2422 Newz (0, coro, 1, struct coro);
2423 coro->args = newAV ();
2424 coro->flags = CF_NEW;
2425
2426 av_extend (coro->args, items - 1);
2427 for (i = 1; i < items; i++)
2428 av_push (coro->args, newSVsv (ST (i)));
2429
2430 CvISXSUB_on (ncv);
2431 CvXSUBANY (ncv).any_ptr = (void *)coro;
2432
2433 xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
2434
2435 CvXSUB (ncv) = CvXSUB (xcv);
2436 CvANON_on (ncv);
2437
2438 mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
2439 RETVAL = newRV_noinc ((SV *)ncv);
2440}
2441 OUTPUT:
2442 RETVAL
2443
2444#endif
2445
1928 2446
1929MODULE = Coro::State PACKAGE = Coro::AIO 2447MODULE = Coro::State PACKAGE = Coro::AIO
1930 2448
1931SV * 2449void
1932_get_state () 2450_get_state (SV *self)
1933 CODE: 2451 PPCODE:
1934{ 2452{
1935 struct io_state *data; 2453 AV *defav = GvAV (PL_defgv);
1936 2454 AV *av = newAV ();
2455 int i;
1937 RETVAL = newSV (sizeof (struct io_state)); 2456 SV *data_sv = newSV (sizeof (struct io_state));
1938 data = (struct io_state *)SvPVX (RETVAL); 2457 struct io_state *data = (struct io_state *)SvPVX (data_sv);
1939 SvCUR_set (RETVAL, sizeof (struct io_state)); 2458 SvCUR_set (data_sv, sizeof (struct io_state));
1940 SvPOK_only (RETVAL); 2459 SvPOK_only (data_sv);
1941 2460
1942 data->errorno = errno; 2461 data->errorno = errno;
1943 data->laststype = PL_laststype; 2462 data->laststype = PL_laststype;
1944 data->laststatval = PL_laststatval; 2463 data->laststatval = PL_laststatval;
1945 data->statcache = PL_statcache; 2464 data->statcache = PL_statcache;
2465
2466 av_extend (av, AvFILLp (defav) + 1 + 1);
2467
2468 for (i = 0; i <= AvFILLp (defav); ++i)
2469 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
2470
2471 av_push (av, data_sv);
2472
2473 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
2474
2475 api_ready (self);
1946} 2476}
1947 OUTPUT:
1948 RETVAL
1949 2477
1950void 2478void
1951_set_state (char *data_) 2479_set_state (SV *state)
1952 PROTOTYPE: $ 2480 PROTOTYPE: $
1953 CODE: 2481 PPCODE:
1954{ 2482{
1955 struct io_state *data = (void *)data_; 2483 AV *av = (AV *)SvRV (state);
2484 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
2485 int i;
1956 2486
1957 errno = data->errorno; 2487 errno = data->errorno;
1958 PL_laststype = data->laststype; 2488 PL_laststype = data->laststype;
1959 PL_laststatval = data->laststatval; 2489 PL_laststatval = data->laststatval;
1960 PL_statcache = data->statcache; 2490 PL_statcache = data->statcache;
1961}
1962 2491
2492 EXTEND (SP, AvFILLp (av));
2493 for (i = 0; i < AvFILLp (av); ++i)
2494 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
2495}
2496
2497
2498MODULE = Coro::State PACKAGE = Coro::AnyEvent
2499
2500BOOT:
2501 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2502
2503SV *
2504_schedule (...)
2505 PROTOTYPE: @
2506 CODE:
2507{
2508 static int incede;
2509
2510 api_cede_notself ();
2511
2512 ++incede;
2513 while (coro_nready >= incede && api_cede ())
2514 ;
2515
2516 sv_setsv (sv_activity, &PL_sv_undef);
2517 if (coro_nready >= incede)
2518 {
2519 PUSHMARK (SP);
2520 PUTBACK;
2521 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2522 SPAGAIN;
2523 }
2524
2525 --incede;
2526}
2527
2528
2529MODULE = Coro::State PACKAGE = PerlIO::cede
2530
2531BOOT:
2532 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2533

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