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Comparing Coro/Coro/State.xs (file contents):
Revision 1.201 by root, Mon Oct 8 01:23:14 2007 UTC vs.
Revision 1.265 by root, Fri Nov 14 02:42:26 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
23# include <inttypes.h> /* most portable stdint.h */
24#endif
15 25
16#ifdef HAVE_MMAP 26#ifdef HAVE_MMAP
17# include <unistd.h> 27# include <unistd.h>
18# include <sys/mman.h> 28# include <sys/mman.h>
19# ifndef MAP_ANONYMOUS 29# ifndef MAP_ANONYMOUS
… …
36# define BOOT_PAGESIZE (void)0 46# define BOOT_PAGESIZE (void)0
37#endif 47#endif
38 48
39#if CORO_USE_VALGRIND 49#if CORO_USE_VALGRIND
40# include <valgrind/valgrind.h> 50# include <valgrind/valgrind.h>
41# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
42#else
43# define REGISTER_STACK(cctx,start,end)
44#endif 51#endif
45 52
46/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
47#define MAX_IDLE_CCTX 8 54static int cctx_max_idle = 4;
48 55
49#define PERL_VERSION_ATLEAST(a,b,c) \ 56#define PERL_VERSION_ATLEAST(a,b,c) \
50 (PERL_REVISION > (a) \ 57 (PERL_REVISION > (a) \
51 || (PERL_REVISION == (a) \ 58 || (PERL_REVISION == (a) \
52 && (PERL_VERSION > (b) \ 59 && (PERL_VERSION > (b) \
… …
71# ifndef IS_PADCONST 78# ifndef IS_PADCONST
72# define IS_PADCONST(v) 0 79# define IS_PADCONST(v) 0
73# endif 80# endif
74#endif 81#endif
75 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
76/* 5.8.7 */ 101/* 5.8.7 */
77#ifndef SvRV_set 102#ifndef SvRV_set
78# define SvRV_set(s,v) SvRV(s) = (v) 103# define SvRV_set(s,v) SvRV(s) = (v)
79#endif
80
81/* 5.8.8 */
82#ifndef GV_NOTQUAL
83# define GV_NOTQUAL 0
84#endif
85#ifndef newSV
86# define newSV(l) NEWSV(0,l)
87#endif 104#endif
88 105
89#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 106#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
90# undef CORO_STACKGUARD 107# undef CORO_STACKGUARD
91#endif 108#endif
… …
106 123
107#define IN_DESTRUCT (PL_main_cv == Nullcv) 124#define IN_DESTRUCT (PL_main_cv == Nullcv)
108 125
109#if __GNUC__ >= 3 126#if __GNUC__ >= 3
110# define attribute(x) __attribute__(x) 127# define attribute(x) __attribute__(x)
111# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112# define expect(expr,value) __builtin_expect ((expr),(value)) 128# define expect(expr,value) __builtin_expect ((expr),(value))
129# define INLINE static inline
113#else 130#else
114# define attribute(x) 131# define attribute(x)
115# define BARRIER
116# define expect(expr,value) (expr) 132# define expect(expr,value) (expr)
133# define INLINE static
117#endif 134#endif
118 135
119#define expect_false(expr) expect ((expr) != 0, 0) 136#define expect_false(expr) expect ((expr) != 0, 0)
120#define expect_true(expr) expect ((expr) != 0, 1) 137#define expect_true(expr) expect ((expr) != 0, 1)
121 138
122#define NOINLINE attribute ((noinline)) 139#define NOINLINE attribute ((noinline))
123 140
124#include "CoroAPI.h" 141#include "CoroAPI.h"
125 142
126#ifdef USE_ITHREADS 143#ifdef USE_ITHREADS
144
127static perl_mutex coro_mutex; 145static perl_mutex coro_lock;
128# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) 146# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
129# 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
130#else 152#else
153
131# define LOCK (void)0 154# define LOCK (void)0
132# define UNLOCK (void)0 155# define UNLOCK (void)0
133#endif
134 156
135#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
136 163
137/* helper storage struct for Coro::AIO */ 164/* helper storage struct for Coro::AIO */
138struct io_state 165struct io_state
139{ 166{
167 AV *res;
140 int errorno; 168 int errorno;
141 I32 laststype; 169 I32 laststype; /* U16 in 5.10.0 */
142 int laststatval; 170 int laststatval;
143 Stat_t statcache; 171 Stat_t statcache;
144}; 172};
145 173
174static double (*nvtime)(); /* so why doesn't it take void? */
175
176static U32 cctx_gen;
146static size_t coro_stacksize = CORO_STACKSIZE; 177static size_t cctx_stacksize = CORO_STACKSIZE;
147static struct CoroAPI coroapi; 178static struct CoroAPI coroapi;
148static AV *main_mainstack; /* used to differentiate between $main and others */ 179static AV *main_mainstack; /* used to differentiate between $main and others */
149static JMPENV *main_top_env; 180static JMPENV *main_top_env;
150static HV *coro_state_stash, *coro_stash; 181static HV *coro_state_stash, *coro_stash;
151static 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};
152 189
153static GV *irsgv; /* $/ */ 190static GV *irsgv; /* $/ */
154static GV *stdoutgv; /* *STDOUT */ 191static GV *stdoutgv; /* *STDOUT */
155 192static SV *rv_diehook;
193static SV *rv_warnhook;
156static HV *hv_sig; /* %SIG */ 194static HV *hv_sig; /* %SIG */
157static SV *sv_diehook;
158static SV *sv_warnhook;
159 195
160/* async_pool helper stuff */ 196/* async_pool helper stuff */
161static SV *sv_pool_rss; 197static SV *sv_pool_rss;
162static SV *sv_pool_size; 198static SV *sv_pool_size;
163static AV *av_async_pool; 199static AV *av_async_pool;
200
201/* Coro::AnyEvent */
202static SV *sv_activity;
164 203
165static struct coro_cctx *cctx_first; 204static struct coro_cctx *cctx_first;
166static int cctx_count, cctx_idle; 205static int cctx_count, cctx_idle;
167 206
168enum { 207enum {
… …
186 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 225 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
187 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 */
188 JMPENV *top_env; 227 JMPENV *top_env;
189 coro_context cctx; 228 coro_context cctx;
190 229
230 U32 gen;
191#if CORO_USE_VALGRIND 231#if CORO_USE_VALGRIND
192 int valgrind_id; 232 int valgrind_id;
193#endif 233#endif
194 unsigned char flags; 234 unsigned char flags;
195} coro_cctx; 235} coro_cctx;
… …
221 261
222 /* process data */ 262 /* process data */
223 AV *mainstack; 263 AV *mainstack;
224 perl_slots *slot; /* basically the saved sp */ 264 perl_slots *slot; /* basically the saved sp */
225 265
226 /* data associated with this coroutine (initial args) */ 266 AV *args; /* data associated with this coroutine (initial args) */
227 AV *args; 267 int refcnt; /* coroutines are refcounted, yes */
228 int refcnt;
229 int flags; /* CF_ flags */ 268 int flags; /* CF_ flags */
269 HV *hv; /* the perl hash associated with this coro, if any */
230 270
231 /* statistics */ 271 /* statistics */
232 int usecount; /* number of transfers to this coro */ 272 int usecount; /* number of transfers to this coro */
233 273
234 /* coro process data */ 274 /* coro process data */
235 int prio; 275 int prio;
236 SV *throw; 276 SV *throw; /* exception to be thrown */
237 277
238 /* async_pool */ 278 /* async_pool */
239 SV *saved_deffh; 279 SV *saved_deffh;
240 280
241 /* linked list */ 281 /* linked list */
242 struct coro *next, *prev; 282 struct coro *next, *prev;
243 HV *hv; /* the perl hash associated with this coro, if any */
244}; 283};
245 284
246typedef struct coro *Coro__State; 285typedef struct coro *Coro__State;
247typedef struct coro *Coro__State_or_hashref; 286typedef struct coro *Coro__State_or_hashref;
248 287
… …
255#define PRIO_IDLE -3 294#define PRIO_IDLE -3
256#define PRIO_MIN -4 295#define PRIO_MIN -4
257 296
258/* for Coro.pm */ 297/* for Coro.pm */
259static SV *coro_current; 298static SV *coro_current;
299static SV *coro_readyhook;
260static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 300static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1];
261static int coro_nready; 301static int coro_nready;
262static struct coro *coro_first; 302static struct coro *coro_first;
263 303
264/** lowlevel stuff **********************************************************/ 304/** lowlevel stuff **********************************************************/
265 305
266static SV * 306static SV *
267coro_get_sv (const char *name, int create) 307coro_get_sv (pTHX_ const char *name, int create)
268{ 308{
269#if PERL_VERSION_ATLEAST (5,9,0) 309#if PERL_VERSION_ATLEAST (5,10,0)
270 /* 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 */
271 get_sv (name, create); 311 get_sv (name, create);
272#endif 312#endif
273 return get_sv (name, create); 313 return get_sv (name, create);
274} 314}
275 315
276static AV * 316static AV *
277coro_get_av (const char *name, int create) 317coro_get_av (pTHX_ const char *name, int create)
278{ 318{
279#if PERL_VERSION_ATLEAST (5,9,0) 319#if PERL_VERSION_ATLEAST (5,10,0)
280 /* 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 */
281 get_av (name, create); 321 get_av (name, create);
282#endif 322#endif
283 return get_av (name, create); 323 return get_av (name, create);
284} 324}
285 325
286static HV * 326static HV *
287coro_get_hv (const char *name, int create) 327coro_get_hv (pTHX_ const char *name, int create)
288{ 328{
289#if PERL_VERSION_ATLEAST (5,9,0) 329#if PERL_VERSION_ATLEAST (5,10,0)
290 /* 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 */
291 get_hv (name, create); 331 get_hv (name, create);
292#endif 332#endif
293 return get_hv (name, create); 333 return get_hv (name, create);
294} 334}
… …
299 AV *padlist = CvPADLIST (cv); 339 AV *padlist = CvPADLIST (cv);
300 AV *newpadlist, *newpad; 340 AV *newpadlist, *newpad;
301 341
302 newpadlist = newAV (); 342 newpadlist = newAV ();
303 AvREAL_off (newpadlist); 343 AvREAL_off (newpadlist);
304#if PERL_VERSION_ATLEAST (5,9,0) 344#if PERL_VERSION_ATLEAST (5,10,0)
305 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); 345 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1);
306#else 346#else
307 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 347 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
308#endif 348#endif
309 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 349 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
310 --AvFILLp (padlist); 350 --AvFILLp (padlist);
311 351
312 av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); 352 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE)));
313 av_store (newpadlist, 1, (SV *)newpad); 353 av_store (newpadlist, 1, (SV *)newpad);
314 354
315 return newpadlist; 355 return newpadlist;
316} 356}
317 357
… …
347 387
348 /* casting is fun. */ 388 /* casting is fun. */
349 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 389 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
350 free_padlist (aTHX_ padlist); 390 free_padlist (aTHX_ padlist);
351 391
352 SvREFCNT_dec (av); 392 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
353 393
354 return 0; 394 return 0;
355} 395}
356 396
357#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
358 399
359static 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};
360 404
361#define CORO_MAGIC(cv) \ 405#define CORO_MAGIC(sv, type) \
362 SvMAGIC (cv) \ 406 SvMAGIC (sv) \
363 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 407 ? SvMAGIC (sv)->mg_type == type \
364 ? SvMAGIC (cv) \ 408 ? SvMAGIC (sv) \
365 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 409 : mg_find (sv, type) \
366 : 0 410 : 0
367 411
368static 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 *
369SvSTATE_ (pTHX_ SV *coro) 416SvSTATE_ (pTHX_ SV *coro)
370{ 417{
371 HV *stash; 418 HV *stash;
372 MAGIC *mg; 419 MAGIC *mg;
373 420
… …
383 /* very slow, but rare, check */ 430 /* very slow, but rare, check */
384 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) 431 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
385 croak ("Coro::State object required"); 432 croak ("Coro::State object required");
386 } 433 }
387 434
388 mg = CORO_MAGIC (coro); 435 mg = CORO_MAGIC_state (coro);
389 return (struct coro *)mg->mg_ptr; 436 return (struct coro *)mg->mg_ptr;
390} 437}
391 438
392#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 439#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
393 440
394/* the next two functions merely cache the padlists */ 441/* the next two functions merely cache the padlists */
395static void 442static void
396get_padlist (pTHX_ CV *cv) 443get_padlist (pTHX_ CV *cv)
397{ 444{
398 MAGIC *mg = CORO_MAGIC (cv); 445 MAGIC *mg = CORO_MAGIC_cv (cv);
399 AV *av; 446 AV *av;
400 447
401 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 448 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
402 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 449 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
403 else 450 else
404 { 451 {
405#if CORO_PREFER_PERL_FUNCTIONS 452#if CORO_PREFER_PERL_FUNCTIONS
406 /* this is probably cleaner, but also slower? */ 453 /* this is probably cleaner? but also slower! */
454 /* in practise, it seems to be less stable */
407 CV *cp = Perl_cv_clone (cv); 455 CV *cp = Perl_cv_clone (cv);
408 CvPADLIST (cv) = CvPADLIST (cp); 456 CvPADLIST (cv) = CvPADLIST (cp);
409 CvPADLIST (cp) = 0; 457 CvPADLIST (cp) = 0;
410 SvREFCNT_dec (cp); 458 SvREFCNT_dec (cp);
411#else 459#else
… …
415} 463}
416 464
417static void 465static void
418put_padlist (pTHX_ CV *cv) 466put_padlist (pTHX_ CV *cv)
419{ 467{
420 MAGIC *mg = CORO_MAGIC (cv); 468 MAGIC *mg = CORO_MAGIC_cv (cv);
421 AV *av; 469 AV *av;
422 470
423 if (expect_false (!mg)) 471 if (expect_false (!mg))
424 { 472 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
425 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
426 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
427 mg->mg_virtual = &vtbl_coro;
428 mg->mg_obj = (SV *)newAV ();
429 }
430 473
431 av = (AV *)mg->mg_obj; 474 av = (AV *)mg->mg_obj;
432 475
433 if (expect_false (AvFILLp (av) >= AvMAX (av))) 476 if (expect_false (AvFILLp (av) >= AvMAX (av)))
434 av_extend (av, AvMAX (av) + 1); 477 av_extend (av, AvMAX (av) + 1);
… …
500 543
501 if (expect_true (CvDEPTH (cv))) 544 if (expect_true (CvDEPTH (cv)))
502 { 545 {
503 EXTEND (SP, 3); 546 EXTEND (SP, 3);
504 PUSHs ((SV *)CvPADLIST (cv)); 547 PUSHs ((SV *)CvPADLIST (cv));
505 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 548 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
506 PUSHs ((SV *)cv); 549 PUSHs ((SV *)cv);
507 550
508 CvDEPTH (cv) = 0; 551 CvDEPTH (cv) = 0;
509 get_padlist (aTHX_ cv); 552 get_padlist (aTHX_ cv);
510 } 553 }
… …
521 564
522 PUTBACK; 565 PUTBACK;
523 } 566 }
524 567
525 /* allocate some space on the context stack for our purposes */ 568 /* allocate some space on the context stack for our purposes */
569 /* we manually unroll here, as usually 2 slots is enough */
570 if (SLOT_COUNT >= 1) CXINC;
571 if (SLOT_COUNT >= 2) CXINC;
572 if (SLOT_COUNT >= 3) CXINC;
526 { 573 {
527 /* we manually unroll here, as usually 2 slots is enough */
528 int i; 574 int i;
529 if (SLOT_COUNT >= 1) CXINC;
530 if (SLOT_COUNT >= 2) CXINC;
531 if (SLOT_COUNT >= 3) CXINC;
532 for (i = 3; i < SLOT_COUNT; ++i) 575 for (i = 3; i < SLOT_COUNT; ++i)
533 CXINC; 576 CXINC;
534
535 cxstack_ix -= SLOT_COUNT; /* undo allocation */
536 } 577 }
578 cxstack_ix -= SLOT_COUNT; /* undo allocation */
537 579
538 c->mainstack = PL_mainstack; 580 c->mainstack = PL_mainstack;
539 581
540 { 582 {
541 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 583 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
… …
591 633
592 New(54,PL_savestack,24,ANY); 634 New(54,PL_savestack,24,ANY);
593 PL_savestack_ix = 0; 635 PL_savestack_ix = 0;
594 PL_savestack_max = 24; 636 PL_savestack_max = 24;
595 637
596#if !PERL_VERSION_ATLEAST (5,9,0) 638#if !PERL_VERSION_ATLEAST (5,10,0)
597 New(54,PL_retstack,4,OP*); 639 New(54,PL_retstack,4,OP*);
598 PL_retstack_ix = 0; 640 PL_retstack_ix = 0;
599 PL_retstack_max = 4; 641 PL_retstack_max = 4;
600#endif 642#endif
601} 643}
… …
603 645
604/* 646/*
605 * destroy the stacks, the callchain etc... 647 * destroy the stacks, the callchain etc...
606 */ 648 */
607static void 649static void
608coro_destroy_stacks (pTHX) 650coro_destruct_stacks (pTHX)
609{ 651{
610 while (PL_curstackinfo->si_next) 652 while (PL_curstackinfo->si_next)
611 PL_curstackinfo = PL_curstackinfo->si_next; 653 PL_curstackinfo = PL_curstackinfo->si_next;
612 654
613 while (PL_curstackinfo) 655 while (PL_curstackinfo)
… …
624 666
625 Safefree (PL_tmps_stack); 667 Safefree (PL_tmps_stack);
626 Safefree (PL_markstack); 668 Safefree (PL_markstack);
627 Safefree (PL_scopestack); 669 Safefree (PL_scopestack);
628 Safefree (PL_savestack); 670 Safefree (PL_savestack);
629#if !PERL_VERSION_ATLEAST (5,9,0) 671#if !PERL_VERSION_ATLEAST (5,10,0)
630 Safefree (PL_retstack); 672 Safefree (PL_retstack);
631#endif 673#endif
632} 674}
633 675
634static size_t 676static size_t
… …
650 #undef VAR 692 #undef VAR
651 } 693 }
652 else 694 else
653 slot = coro->slot; 695 slot = coro->slot;
654 696
697 if (slot)
698 {
655 rss += sizeof (slot->curstackinfo); 699 rss += sizeof (slot->curstackinfo);
656 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 700 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
657 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 *);
658 rss += slot->tmps_max * sizeof (SV *); 702 rss += slot->tmps_max * sizeof (SV *);
659 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); 703 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
660 rss += slot->scopestack_max * sizeof (I32); 704 rss += slot->scopestack_max * sizeof (I32);
661 rss += slot->savestack_max * sizeof (ANY); 705 rss += slot->savestack_max * sizeof (ANY);
662 706
663#if !PERL_VERSION_ATLEAST (5,9,0) 707#if !PERL_VERSION_ATLEAST (5,10,0)
664 rss += slot->retstack_max * sizeof (OP *); 708 rss += slot->retstack_max * sizeof (OP *);
665#endif 709#endif
710 }
666 } 711 }
667 712
668 return rss; 713 return rss;
669} 714}
670 715
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 somtimes 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 int gimme = GIMME_V;
728
729 if (gimme == G_SCALAR)
730 XPUSHs (&PL_sv_undef);
731
732 PUTBACK;
733}
734
671/** coroutine stack handling ************************************************/ 735/** coroutine stack handling ************************************************/
736
737static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
738static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
739static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
740
741/* apparently < 5.8.8 */
742#ifndef MgPV_nolen_const
743#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
744 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
745 (const char*)(mg)->mg_ptr)
746#endif
747
748/*
749 * This overrides the default magic get method of %SIG elements.
750 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
751 * and instead of tryign to save and restore the hash elements, we just provide
752 * readback here.
753 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
754 * not expecting this to actually change the hook. This is a potential problem
755 * when a schedule happens then, but we ignore this.
756 */
757static int
758coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
759{
760 const char *s = MgPV_nolen_const (mg);
761
762 if (*s == '_')
763 {
764 SV **svp = 0;
765
766 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
767 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
768
769 if (svp)
770 {
771 sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
772 return 0;
773 }
774 }
775
776 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
777}
778
779static int
780coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
781{
782 const char *s = MgPV_nolen_const (mg);
783
784 if (*s == '_')
785 {
786 SV **svp = 0;
787
788 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
789 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
790
791 if (svp)
792 {
793 SV *old = *svp;
794 *svp = 0;
795 SvREFCNT_dec (old);
796 return 0;
797 }
798 }
799
800 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
801}
802
803static int
804coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
805{
806 const char *s = MgPV_nolen_const (mg);
807
808 if (*s == '_')
809 {
810 SV **svp = 0;
811
812 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
813 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
814
815 if (svp)
816 {
817 SV *old = *svp;
818 *svp = newSVsv (sv);
819 SvREFCNT_dec (old);
820 return 0;
821 }
822 }
823
824 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
825}
672 826
673static void 827static void
674coro_setup (pTHX_ struct coro *coro) 828coro_setup (pTHX_ struct coro *coro)
675{ 829{
676 /* 830 /*
… …
685 PL_curpm = 0; 839 PL_curpm = 0;
686 PL_curpad = 0; 840 PL_curpad = 0;
687 PL_localizing = 0; 841 PL_localizing = 0;
688 PL_dirty = 0; 842 PL_dirty = 0;
689 PL_restartop = 0; 843 PL_restartop = 0;
690 SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); 844#if PERL_VERSION_ATLEAST (5,10,0)
691 SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); 845 PL_parser = 0;
846#endif
847
848 /* recreate the die/warn hooks */
849 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
850 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
692 851
693 GvSV (PL_defgv) = newSV (0); 852 GvSV (PL_defgv) = newSV (0);
694 GvAV (PL_defgv) = coro->args; coro->args = 0; 853 GvAV (PL_defgv) = coro->args; coro->args = 0;
695 GvSV (PL_errgv) = newSV (0); 854 GvSV (PL_errgv) = newSV (0);
696 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 855 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
697 PL_rs = newSVsv (GvSV (irsgv)); 856 PL_rs = newSVsv (GvSV (irsgv));
698 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); 857 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
699 858
700 { 859 {
701 dSP; 860 dSP;
702 LOGOP myop; 861 UNOP myop;
703 862
704 Zero (&myop, 1, LOGOP); 863 Zero (&myop, 1, UNOP);
705 myop.op_next = Nullop; 864 myop.op_next = Nullop;
706 myop.op_flags = OPf_WANT_VOID; 865 myop.op_flags = OPf_WANT_VOID;
707 866
708 PUSHMARK (SP); 867 PUSHMARK (SP);
709 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 868 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
… …
711 PL_op = (OP *)&myop; 870 PL_op = (OP *)&myop;
712 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 871 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
713 SPAGAIN; 872 SPAGAIN;
714 } 873 }
715 874
716 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ 875 /* this newly created coroutine might be run on an existing cctx which most
876 * likely was suspended in set_stacklevel, called from pp_set_stacklevel,
877 * so we have to emulate entering pp_set_stacklevel here.
878 */
879 SSL_HEAD;
717} 880}
718 881
719static void 882static void
720coro_destroy (pTHX_ struct coro *coro) 883coro_destruct (pTHX_ struct coro *coro)
721{ 884{
722 if (!IN_DESTRUCT) 885 if (!IN_DESTRUCT)
723 { 886 {
724 /* restore all saved variables and stuff */ 887 /* restore all saved variables and stuff */
725 LEAVE_SCOPE (0); 888 LEAVE_SCOPE (0);
… …
747 SvREFCNT_dec (PL_warnhook); 910 SvREFCNT_dec (PL_warnhook);
748 911
749 SvREFCNT_dec (coro->saved_deffh); 912 SvREFCNT_dec (coro->saved_deffh);
750 SvREFCNT_dec (coro->throw); 913 SvREFCNT_dec (coro->throw);
751 914
752 coro_destroy_stacks (aTHX); 915 coro_destruct_stacks (aTHX);
753} 916}
754 917
755static void 918INLINE void
756free_coro_mortal (pTHX) 919free_coro_mortal (pTHX)
757{ 920{
758 if (expect_true (coro_mortal)) 921 if (expect_true (coro_mortal))
759 { 922 {
760 SvREFCNT_dec (coro_mortal); 923 SvREFCNT_dec (coro_mortal);
… …
794 : cx->blk_gimme == G_SCALAR ? bot + 1 957 : cx->blk_gimme == G_SCALAR ? bot + 1
795 : bot; 958 : bot;
796 959
797 av_extend (av, top - bot); 960 av_extend (av, top - bot);
798 while (bot < top) 961 while (bot < top)
799 av_push (av, SvREFCNT_inc (*bot++)); 962 av_push (av, SvREFCNT_inc_NN (*bot++));
800 963
801 PL_runops = RUNOPS_DEFAULT; 964 PL_runops = RUNOPS_DEFAULT;
802 ENTER; 965 ENTER;
803 SAVETMPS; 966 SAVETMPS;
804 EXTEND (SP, 3); 967 EXTEND (SP, 3);
805 PUSHMARK (SP); 968 PUSHMARK (SP);
806 PUSHs (&PL_sv_no); 969 PUSHs (&PL_sv_no);
807 PUSHs (fullname); 970 PUSHs (fullname);
808 PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 971 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
809 PUTBACK; 972 PUTBACK;
810 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 973 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
811 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 974 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
812 SPAGAIN; 975 SPAGAIN;
813 FREETMPS; 976 FREETMPS;
814 LEAVE; 977 LEAVE;
815 PL_runops = runops_trace; 978 PL_runops = runops_trace;
… …
842 SAVETMPS; 1005 SAVETMPS;
843 EXTEND (SP, 3); 1006 EXTEND (SP, 3);
844 PUSHMARK (SP); 1007 PUSHMARK (SP);
845 PUSHs (&PL_sv_yes); 1008 PUSHs (&PL_sv_yes);
846 PUSHs (fullname); 1009 PUSHs (fullname);
847 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1010 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
848 PUTBACK; 1011 PUTBACK;
849 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 1012 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
850 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1013 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
851 SPAGAIN; 1014 SPAGAIN;
852 FREETMPS; 1015 FREETMPS;
853 LEAVE; 1016 LEAVE;
854 PL_runops = runops_trace; 1017 PL_runops = runops_trace;
… …
868 PL_runops = RUNOPS_DEFAULT; 1031 PL_runops = RUNOPS_DEFAULT;
869 PUSHMARK (SP); 1032 PUSHMARK (SP);
870 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); 1033 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
871 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); 1034 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
872 PUTBACK; 1035 PUTBACK;
873 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); 1036 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
874 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1037 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
875 SPAGAIN; 1038 SPAGAIN;
876 FREETMPS; 1039 FREETMPS;
877 LEAVE; 1040 LEAVE;
878 PL_runops = runops_trace; 1041 PL_runops = runops_trace;
… …
884 1047
885 TAINT_NOT; 1048 TAINT_NOT;
886 return 0; 1049 return 0;
887} 1050}
888 1051
1052static void
1053prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1054{
1055 ta->prev = (struct coro *)cctx;
1056 ta->next = 0;
1057}
1058
889/* inject a fake call to Coro::State::_cctx_init into the execution */ 1059/* inject a fake call to Coro::State::_cctx_init into the execution */
890/* _cctx_init should be careful, as it could be called at almost any time */ 1060/* _cctx_init should be careful, as it could be called at almost any time */
891/* during execution of a perl program */ 1061/* during execution of a perl program */
1062/* also initialises PL_top_env */
892static void NOINLINE 1063static void NOINLINE
893cctx_prepare (pTHX_ coro_cctx *cctx) 1064cctx_prepare (pTHX_ coro_cctx *cctx)
894{ 1065{
895 dSP; 1066 dSP;
896 LOGOP myop; 1067 UNOP myop;
897 1068
898 PL_top_env = &PL_start_env; 1069 PL_top_env = &PL_start_env;
899 1070
900 if (cctx->flags & CC_TRACE) 1071 if (cctx->flags & CC_TRACE)
901 PL_runops = runops_trace; 1072 PL_runops = runops_trace;
902 1073
903 Zero (&myop, 1, LOGOP); 1074 Zero (&myop, 1, UNOP);
904 myop.op_next = PL_op; 1075 myop.op_next = PL_op;
905 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1076 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
906 1077
907 PUSHMARK (SP); 1078 PUSHMARK (SP);
908 EXTEND (SP, 2); 1079 EXTEND (SP, 2);
909 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1080 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
910 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1081 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
911 PUTBACK; 1082 PUTBACK;
912 PL_op = (OP *)&myop; 1083 PL_op = (OP *)&myop;
913 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1084 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
914 SPAGAIN; 1085 SPAGAIN;
915} 1086}
916 1087
1088/* the tail of transfer: execute stuff we can only do after a transfer */
1089INLINE void
1090transfer_tail (pTHX)
1091{
1092 struct coro *next = (struct coro *)transfer_next;
1093 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1094 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1095
1096 free_coro_mortal (aTHX);
1097 UNLOCK;
1098
1099 if (expect_false (next->throw))
1100 {
1101 SV *exception = sv_2mortal (next->throw);
1102
1103 next->throw = 0;
1104 sv_setsv (ERRSV, exception);
1105 croak (0);
1106 }
1107}
1108
917/* 1109/*
918 * this is a _very_ stripped down perl interpreter ;) 1110 * this is a _very_ stripped down perl interpreter ;)
919 */ 1111 */
920static void 1112static void
921cctx_run (void *arg) 1113cctx_run (void *arg)
922{ 1114{
1115#ifdef USE_ITHREADS
1116# if CORO_PTHREAD
1117 PERL_SET_CONTEXT (coro_thx);
1118# endif
1119#endif
1120 {
923 dTHX; 1121 dTHX;
924 1122
925 /* cctx_run is the alternative tail of transfer(), so unlock here. */ 1123 /* we are the alternative tail to pp_set_stacklevel */
926 UNLOCK; 1124 /* so do the same things here */
1125 SSL_TAIL;
927 1126
928 /* we now skip the entersub that lead to transfer() */ 1127 /* we now skip the op that did lead to transfer() */
929 PL_op = PL_op->op_next; 1128 PL_op = PL_op->op_next;
930 1129
931 /* inject a fake subroutine call to cctx_init */ 1130 /* inject a fake subroutine call to cctx_init */
932 cctx_prepare (aTHX_ (coro_cctx *)arg); 1131 cctx_prepare (aTHX_ (coro_cctx *)arg);
933 1132
1133 /* cctx_run is the alternative tail of transfer() */
1134 transfer_tail (aTHX);
1135
934 /* somebody or something will hit me for both perl_run and PL_restartop */ 1136 /* somebody or something will hit me for both perl_run and PL_restartop */
935 PL_restartop = PL_op; 1137 PL_restartop = PL_op;
936 perl_run (PL_curinterp); 1138 perl_run (PL_curinterp);
937 1139
938 /* 1140 /*
939 * If perl-run returns we assume exit() was being called or the coro 1141 * If perl-run returns we assume exit() was being called or the coro
940 * fell off the end, which seems to be the only valid (non-bug) 1142 * fell off the end, which seems to be the only valid (non-bug)
941 * reason for perl_run to return. We try to exit by jumping to the 1143 * reason for perl_run to return. We try to exit by jumping to the
942 * bootstrap-time "top" top_env, as we cannot restore the "main" 1144 * bootstrap-time "top" top_env, as we cannot restore the "main"
943 * coroutine as Coro has no such concept 1145 * coroutine as Coro has no such concept
944 */ 1146 */
945 PL_top_env = main_top_env; 1147 PL_top_env = main_top_env;
946 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1148 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1149 }
947} 1150}
948 1151
949static coro_cctx * 1152static coro_cctx *
950cctx_new () 1153cctx_new ()
951{ 1154{
952 coro_cctx *cctx; 1155 coro_cctx *cctx;
1156
1157 ++cctx_count;
1158 New (0, cctx, 1, coro_cctx);
1159
1160 cctx->gen = cctx_gen;
1161 cctx->flags = 0;
1162 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1163
1164 return cctx;
1165}
1166
1167/* create a new cctx only suitable as source */
1168static coro_cctx *
1169cctx_new_empty ()
1170{
1171 coro_cctx *cctx = cctx_new ();
1172
1173 cctx->sptr = 0;
1174 coro_create (&cctx->cctx, 0, 0, 0, 0);
1175
1176 return cctx;
1177}
1178
1179/* create a new cctx suitable as destination/running a perl interpreter */
1180static coro_cctx *
1181cctx_new_run ()
1182{
1183 coro_cctx *cctx = cctx_new ();
953 void *stack_start; 1184 void *stack_start;
954 size_t stack_size; 1185 size_t stack_size;
955 1186
956 ++cctx_count;
957
958 Newz (0, cctx, 1, coro_cctx);
959
960#if HAVE_MMAP 1187#if HAVE_MMAP
961 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1188 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
962 /* mmap supposedly does allocate-on-write for us */ 1189 /* mmap supposedly does allocate-on-write for us */
963 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1190 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
964 1191
965 if (cctx->sptr != (void *)-1) 1192 if (cctx->sptr != (void *)-1)
966 { 1193 {
967# if CORO_STACKGUARD 1194 #if CORO_STACKGUARD
968 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1195 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
969# endif 1196 #endif
970 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1197 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
971 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1198 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
972 cctx->flags |= CC_MAPPED; 1199 cctx->flags |= CC_MAPPED;
973 } 1200 }
974 else 1201 else
975#endif 1202#endif
976 { 1203 {
977 cctx->ssize = coro_stacksize * (long)sizeof (long); 1204 cctx->ssize = cctx_stacksize * (long)sizeof (long);
978 New (0, cctx->sptr, coro_stacksize, long); 1205 New (0, cctx->sptr, cctx_stacksize, long);
979 1206
980 if (!cctx->sptr) 1207 if (!cctx->sptr)
981 { 1208 {
982 perror ("FATAL: unable to allocate stack for coroutine"); 1209 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
983 _exit (EXIT_FAILURE); 1210 _exit (EXIT_FAILURE);
984 } 1211 }
985 1212
986 stack_start = cctx->sptr; 1213 stack_start = cctx->sptr;
987 stack_size = cctx->ssize; 1214 stack_size = cctx->ssize;
988 } 1215 }
989 1216
990 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1217 #if CORO_USE_VALGRIND
1218 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1219 #endif
1220
991 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1221 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
992 1222
993 return cctx; 1223 return cctx;
994} 1224}
995 1225
… …
998{ 1228{
999 if (!cctx) 1229 if (!cctx)
1000 return; 1230 return;
1001 1231
1002 --cctx_count; 1232 --cctx_count;
1233 coro_destroy (&cctx->cctx);
1003 1234
1235 /* coro_transfer creates new, empty cctx's */
1236 if (cctx->sptr)
1237 {
1004#if CORO_USE_VALGRIND 1238 #if CORO_USE_VALGRIND
1005 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1239 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1006#endif 1240 #endif
1007 1241
1008#if HAVE_MMAP 1242#if HAVE_MMAP
1009 if (cctx->flags & CC_MAPPED) 1243 if (cctx->flags & CC_MAPPED)
1010 munmap (cctx->sptr, cctx->ssize); 1244 munmap (cctx->sptr, cctx->ssize);
1011 else 1245 else
1012#endif 1246#endif
1013 Safefree (cctx->sptr); 1247 Safefree (cctx->sptr);
1248 }
1014 1249
1015 Safefree (cctx); 1250 Safefree (cctx);
1016} 1251}
1017 1252
1018/* wether this cctx should be destructed */ 1253/* wether this cctx should be destructed */
1019#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1254#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1020 1255
1021static coro_cctx * 1256static coro_cctx *
1022cctx_get (pTHX) 1257cctx_get (pTHX)
1023{ 1258{
1024 while (expect_true (cctx_first)) 1259 while (expect_true (cctx_first))
… …
1031 return cctx; 1266 return cctx;
1032 1267
1033 cctx_destroy (cctx); 1268 cctx_destroy (cctx);
1034 } 1269 }
1035 1270
1036 return cctx_new (); 1271 return cctx_new_run ();
1037} 1272}
1038 1273
1039static void 1274static void
1040cctx_put (coro_cctx *cctx) 1275cctx_put (coro_cctx *cctx)
1041{ 1276{
1277 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1278
1042 /* free another cctx if overlimit */ 1279 /* free another cctx if overlimit */
1043 if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) 1280 if (expect_false (cctx_idle >= cctx_max_idle))
1044 { 1281 {
1045 coro_cctx *first = cctx_first; 1282 coro_cctx *first = cctx_first;
1046 cctx_first = first->next; 1283 cctx_first = first->next;
1047 --cctx_idle; 1284 --cctx_idle;
1048 1285
… …
1068 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1305 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1069 1306
1070 if (expect_false (next->flags & CF_DESTROYED)) 1307 if (expect_false (next->flags & CF_DESTROYED))
1071 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1308 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1072 1309
1073 if (
1074#if PERL_VERSION_ATLEAST (5,9,0) 1310#if !PERL_VERSION_ATLEAST (5,10,0)
1075 expect_false (PL_parser)
1076#else
1077 expect_false (PL_lex_state != LEX_NOTPARSING) 1311 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1078#endif
1079 )
1080 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1312 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1313#endif
1081 } 1314 }
1082} 1315}
1083 1316
1084/* always use the TRANSFER macro */ 1317/* always use the TRANSFER macro */
1085static void NOINLINE 1318static void NOINLINE
1086transfer (pTHX_ struct coro *prev, struct coro *next) 1319transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1087{ 1320{
1088 dSTACKLEVEL; 1321 dSTACKLEVEL;
1089 1322
1090 /* sometimes transfer is only called to set idle_sp */ 1323 /* sometimes transfer is only called to set idle_sp */
1091 if (expect_false (!next)) 1324 if (expect_false (!next))
… …
1097 { 1330 {
1098 coro_cctx *prev__cctx; 1331 coro_cctx *prev__cctx;
1099 1332
1100 if (expect_false (prev->flags & CF_NEW)) 1333 if (expect_false (prev->flags & CF_NEW))
1101 { 1334 {
1102 /* create a new empty context */ 1335 /* create a new empty/source context */
1103 Newz (0, prev->cctx, 1, coro_cctx); 1336 prev->cctx = cctx_new_empty ();
1104 prev->flags &= ~CF_NEW; 1337 prev->flags &= ~CF_NEW;
1105 prev->flags |= CF_RUNNING; 1338 prev->flags |= CF_RUNNING;
1106 } 1339 }
1107 1340
1108 prev->flags &= ~CF_RUNNING; 1341 prev->flags &= ~CF_RUNNING;
1109 next->flags |= CF_RUNNING; 1342 next->flags |= CF_RUNNING;
1110 1343
1111 LOCK; 1344 LOCK;
1345
1346 /* first get rid of the old state */
1347 save_perl (aTHX_ prev);
1112 1348
1113 if (expect_false (next->flags & CF_NEW)) 1349 if (expect_false (next->flags & CF_NEW))
1114 { 1350 {
1115 /* need to start coroutine */ 1351 /* need to start coroutine */
1116 next->flags &= ~CF_NEW; 1352 next->flags &= ~CF_NEW;
1117 /* first get rid of the old state */
1118 save_perl (aTHX_ prev);
1119 /* setup coroutine call */ 1353 /* setup coroutine call */
1120 coro_setup (aTHX_ next); 1354 coro_setup (aTHX_ next);
1121 } 1355 }
1122 else 1356 else
1123 {
1124 /* coroutine already started */
1125 save_perl (aTHX_ prev);
1126 load_perl (aTHX_ next); 1357 load_perl (aTHX_ next);
1127 }
1128 1358
1129 prev__cctx = prev->cctx; 1359 prev__cctx = prev->cctx;
1130 1360
1131 /* possibly "free" the cctx */ 1361 /* possibly untie and reuse the cctx */
1132 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) 1362 if (expect_true (
1363 prev__cctx->idle_sp == STACKLEVEL
1364 && !(prev__cctx->flags & CC_TRACE)
1365 && !force_cctx
1366 ))
1133 { 1367 {
1134 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1368 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1135 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1369 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1136 1370
1137 prev->cctx = 0; 1371 prev->cctx = 0;
1138 1372
1139 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1373 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1140 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1374 /* without this the next cctx_get might destroy the prev__cctx while still in use */
… …
1147 1381
1148 ++next->usecount; 1382 ++next->usecount;
1149 1383
1150 if (expect_true (!next->cctx)) 1384 if (expect_true (!next->cctx))
1151 next->cctx = cctx_get (aTHX); 1385 next->cctx = cctx_get (aTHX);
1386
1387 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1388 transfer_next = next;
1152 1389
1153 if (expect_false (prev__cctx != next->cctx)) 1390 if (expect_false (prev__cctx != next->cctx))
1154 { 1391 {
1155 prev__cctx->top_env = PL_top_env; 1392 prev__cctx->top_env = PL_top_env;
1156 PL_top_env = next->cctx->top_env; 1393 PL_top_env = next->cctx->top_env;
1157 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1394 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1158 } 1395 }
1159 1396
1160 free_coro_mortal (aTHX); 1397 transfer_tail (aTHX);
1161 UNLOCK;
1162
1163 if (expect_false (prev->throw || next->throw))
1164 {
1165 struct coro *coro = SvSTATE (coro_current);
1166
1167 if (coro->throw)
1168 {
1169 SV *exception = coro->throw;
1170 coro->throw = 0;
1171 sv_setsv (ERRSV, exception);
1172 croak (0);
1173 }
1174 }
1175 } 1398 }
1176} 1399}
1177 1400
1178struct transfer_args
1179{
1180 struct coro *prev, *next;
1181};
1182
1183#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1401#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1184#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1402#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1185 1403
1186/** high level stuff ********************************************************/ 1404/** high level stuff ********************************************************/
1187 1405
1188static int 1406static int
… …
1212 croak ("FATAL: tried to destroy currently running coroutine"); 1430 croak ("FATAL: tried to destroy currently running coroutine");
1213 1431
1214 save_perl (aTHX_ &temp); 1432 save_perl (aTHX_ &temp);
1215 load_perl (aTHX_ coro); 1433 load_perl (aTHX_ coro);
1216 1434
1217 coro_destroy (aTHX_ coro); 1435 coro_destruct (aTHX_ coro);
1218 1436
1219 load_perl (aTHX_ &temp); 1437 load_perl (aTHX_ &temp);
1220 1438
1221 coro->slot = 0; 1439 coro->slot = 0;
1222 } 1440 }
… …
1282{ 1500{
1283 dTHX; 1501 dTHX;
1284 struct transfer_args ta; 1502 struct transfer_args ta;
1285 1503
1286 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1504 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1287 TRANSFER (ta); 1505 TRANSFER (ta, 1);
1288} 1506}
1289 1507
1290/** Coro ********************************************************************/ 1508/** Coro ********************************************************************/
1291 1509
1292static void 1510static void
… …
1294{ 1512{
1295 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1513 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1296} 1514}
1297 1515
1298static SV * 1516static SV *
1299coro_deq (pTHX_ int min_prio) 1517coro_deq (pTHX)
1300{ 1518{
1301 int prio = PRIO_MAX - PRIO_MIN; 1519 int prio;
1302 1520
1303 min_prio -= PRIO_MIN;
1304 if (min_prio < 0)
1305 min_prio = 0;
1306
1307 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1521 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1308 if (AvFILLp (coro_ready [prio]) >= 0) 1522 if (AvFILLp (coro_ready [prio]) >= 0)
1309 return av_shift (coro_ready [prio]); 1523 return av_shift (coro_ready [prio]);
1310 1524
1311 return 0; 1525 return 0;
1312} 1526}
… …
1314static int 1528static int
1315api_ready (SV *coro_sv) 1529api_ready (SV *coro_sv)
1316{ 1530{
1317 dTHX; 1531 dTHX;
1318 struct coro *coro; 1532 struct coro *coro;
1533 SV *sv_hook;
1534 void (*xs_hook)(void);
1319 1535
1320 if (SvROK (coro_sv)) 1536 if (SvROK (coro_sv))
1321 coro_sv = SvRV (coro_sv); 1537 coro_sv = SvRV (coro_sv);
1322 1538
1323 coro = SvSTATE (coro_sv); 1539 coro = SvSTATE (coro_sv);
… …
1326 return 0; 1542 return 0;
1327 1543
1328 coro->flags |= CF_READY; 1544 coro->flags |= CF_READY;
1329 1545
1330 LOCK; 1546 LOCK;
1547
1548 sv_hook = coro_nready ? 0 : coro_readyhook;
1549 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1550
1331 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1551 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1332 ++coro_nready; 1552 ++coro_nready;
1553
1333 UNLOCK; 1554 UNLOCK;
1555
1556 if (sv_hook)
1557 {
1558 dSP;
1559
1560 ENTER;
1561 SAVETMPS;
1562
1563 PUSHMARK (SP);
1564 PUTBACK;
1565 call_sv (sv_hook, G_DISCARD);
1566 SPAGAIN;
1567
1568 FREETMPS;
1569 LEAVE;
1570 }
1571
1572 if (xs_hook)
1573 xs_hook ();
1334 1574
1335 return 1; 1575 return 1;
1336} 1576}
1337 1577
1338static int 1578static int
1339api_is_ready (SV *coro_sv) 1579api_is_ready (SV *coro_sv)
1340{ 1580{
1341 dTHX; 1581 dTHX;
1582
1342 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1583 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1343} 1584}
1344 1585
1345static void 1586INLINE void
1346prepare_schedule (pTHX_ struct transfer_args *ta) 1587prepare_schedule (pTHX_ struct transfer_args *ta)
1347{ 1588{
1348 SV *prev_sv, *next_sv; 1589 SV *prev_sv, *next_sv;
1349 1590
1350 for (;;) 1591 for (;;)
1351 { 1592 {
1352 LOCK; 1593 LOCK;
1353 next_sv = coro_deq (aTHX_ PRIO_MIN); 1594 next_sv = coro_deq (aTHX);
1354 1595
1355 /* nothing to schedule: call the idle handler */ 1596 /* nothing to schedule: call the idle handler */
1356 if (expect_false (!next_sv)) 1597 if (expect_false (!next_sv))
1357 { 1598 {
1358 dSP; 1599 dSP;
… …
1362 SAVETMPS; 1603 SAVETMPS;
1363 1604
1364 PUSHMARK (SP); 1605 PUSHMARK (SP);
1365 PUTBACK; 1606 PUTBACK;
1366 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1607 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1608 SPAGAIN;
1367 1609
1368 FREETMPS; 1610 FREETMPS;
1369 LEAVE; 1611 LEAVE;
1370 continue; 1612 continue;
1371 } 1613 }
… …
1375 /* cannot transfer to destroyed coros, skip and look for next */ 1617 /* cannot transfer to destroyed coros, skip and look for next */
1376 if (expect_false (ta->next->flags & CF_DESTROYED)) 1618 if (expect_false (ta->next->flags & CF_DESTROYED))
1377 { 1619 {
1378 UNLOCK; 1620 UNLOCK;
1379 SvREFCNT_dec (next_sv); 1621 SvREFCNT_dec (next_sv);
1380 /* coro_nready is already taken care of by destroy */ 1622 /* coro_nready has already been taken care of by destroy */
1381 continue; 1623 continue;
1382 } 1624 }
1383 1625
1384 --coro_nready; 1626 --coro_nready;
1385 UNLOCK; 1627 UNLOCK;
… …
1388 1630
1389 /* free this only after the transfer */ 1631 /* free this only after the transfer */
1390 prev_sv = SvRV (coro_current); 1632 prev_sv = SvRV (coro_current);
1391 ta->prev = SvSTATE (prev_sv); 1633 ta->prev = SvSTATE (prev_sv);
1392 TRANSFER_CHECK (*ta); 1634 TRANSFER_CHECK (*ta);
1393 assert (ta->next->flags & CF_READY); 1635 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1394 ta->next->flags &= ~CF_READY; 1636 ta->next->flags &= ~CF_READY;
1395 SvRV_set (coro_current, next_sv); 1637 SvRV_set (coro_current, next_sv);
1396 1638
1397 LOCK; 1639 LOCK;
1398 free_coro_mortal (aTHX); 1640 free_coro_mortal (aTHX);
1399 coro_mortal = prev_sv; 1641 coro_mortal = prev_sv;
1400 UNLOCK; 1642 UNLOCK;
1401} 1643}
1402 1644
1403static void 1645INLINE void
1404prepare_cede (pTHX_ struct transfer_args *ta) 1646prepare_cede (pTHX_ struct transfer_args *ta)
1405{ 1647{
1406 api_ready (coro_current); 1648 api_ready (coro_current);
1407 prepare_schedule (aTHX_ ta); 1649 prepare_schedule (aTHX_ ta);
1408} 1650}
… …
1426{ 1668{
1427 dTHX; 1669 dTHX;
1428 struct transfer_args ta; 1670 struct transfer_args ta;
1429 1671
1430 prepare_schedule (aTHX_ &ta); 1672 prepare_schedule (aTHX_ &ta);
1431 TRANSFER (ta); 1673 TRANSFER (ta, 1);
1432} 1674}
1433 1675
1434static int 1676static int
1435api_cede (void) 1677api_cede (void)
1436{ 1678{
… …
1439 1681
1440 prepare_cede (aTHX_ &ta); 1682 prepare_cede (aTHX_ &ta);
1441 1683
1442 if (expect_true (ta.prev != ta.next)) 1684 if (expect_true (ta.prev != ta.next))
1443 { 1685 {
1444 TRANSFER (ta); 1686 TRANSFER (ta, 1);
1445 return 1; 1687 return 1;
1446 } 1688 }
1447 else 1689 else
1448 return 0; 1690 return 0;
1449} 1691}
… …
1454 dTHX; 1696 dTHX;
1455 struct transfer_args ta; 1697 struct transfer_args ta;
1456 1698
1457 if (prepare_cede_notself (aTHX_ &ta)) 1699 if (prepare_cede_notself (aTHX_ &ta))
1458 { 1700 {
1459 TRANSFER (ta); 1701 TRANSFER (ta, 1);
1460 return 1; 1702 return 1;
1461 } 1703 }
1462 else 1704 else
1463 return 0; 1705 return 0;
1464} 1706}
… …
1470 struct coro *coro = SvSTATE (coro_sv); 1712 struct coro *coro = SvSTATE (coro_sv);
1471 1713
1472 if (flags & CC_TRACE) 1714 if (flags & CC_TRACE)
1473 { 1715 {
1474 if (!coro->cctx) 1716 if (!coro->cctx)
1475 coro->cctx = cctx_new (); 1717 coro->cctx = cctx_new_run ();
1476 else if (!(coro->cctx->flags & CC_TRACE)) 1718 else if (!(coro->cctx->flags & CC_TRACE))
1477 croak ("cannot enable tracing on coroutine with custom stack"); 1719 croak ("cannot enable tracing on coroutine with custom stack");
1478 1720
1479 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1721 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1480 } 1722 }
… …
1487 else 1729 else
1488 coro->slot->runops = RUNOPS_DEFAULT; 1730 coro->slot->runops = RUNOPS_DEFAULT;
1489 } 1731 }
1490} 1732}
1491 1733
1734#if 0
1735static int
1736coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1737{
1738 AV *padlist;
1739 AV *av = (AV *)mg->mg_obj;
1740
1741 abort ();
1742
1743 return 0;
1744}
1745
1746static MGVTBL coro_gensub_vtbl = {
1747 0, 0, 0, 0,
1748 coro_gensub_free
1749};
1750#endif
1751
1752/*****************************************************************************/
1753/* PerlIO::cede */
1754
1755typedef struct
1756{
1757 PerlIOBuf base;
1758 NV next, every;
1759} PerlIOCede;
1760
1761static IV
1762PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
1763{
1764 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1765
1766 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
1767 self->next = nvtime () + self->every;
1768
1769 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
1770}
1771
1772static SV *
1773PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
1774{
1775 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1776
1777 return newSVnv (self->every);
1778}
1779
1780static IV
1781PerlIOCede_flush (pTHX_ PerlIO *f)
1782{
1783 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1784 double now = nvtime ();
1785
1786 if (now >= self->next)
1787 {
1788 api_cede ();
1789 self->next = now + self->every;
1790 }
1791
1792 return PerlIOBuf_flush (aTHX_ f);
1793}
1794
1795static PerlIO_funcs PerlIO_cede =
1796{
1797 sizeof(PerlIO_funcs),
1798 "cede",
1799 sizeof(PerlIOCede),
1800 PERLIO_K_DESTRUCT | PERLIO_K_RAW,
1801 PerlIOCede_pushed,
1802 PerlIOBuf_popped,
1803 PerlIOBuf_open,
1804 PerlIOBase_binmode,
1805 PerlIOCede_getarg,
1806 PerlIOBase_fileno,
1807 PerlIOBuf_dup,
1808 PerlIOBuf_read,
1809 PerlIOBuf_unread,
1810 PerlIOBuf_write,
1811 PerlIOBuf_seek,
1812 PerlIOBuf_tell,
1813 PerlIOBuf_close,
1814 PerlIOCede_flush,
1815 PerlIOBuf_fill,
1816 PerlIOBase_eof,
1817 PerlIOBase_error,
1818 PerlIOBase_clearerr,
1819 PerlIOBase_setlinebuf,
1820 PerlIOBuf_get_base,
1821 PerlIOBuf_bufsiz,
1822 PerlIOBuf_get_ptr,
1823 PerlIOBuf_get_cnt,
1824 PerlIOBuf_set_ptrcnt,
1825};
1826
1827/*****************************************************************************/
1828
1829static const CV *ssl_cv; /* for quick consistency check */
1830
1831static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1832static SV *ssl_arg0;
1833static SV *ssl_arg1;
1834
1835/* this restores the stack in the case we patched the entersub, to */
1836/* recreate the stack frame as perl will on following calls */
1837/* since entersub cleared the stack */
1838static OP *
1839pp_restore (pTHX)
1840{
1841 dSP;
1842
1843 PUSHMARK (SP);
1844
1845 EXTEND (SP, 3);
1846 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1847 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1848 PUSHs ((SV *)CvGV (ssl_cv));
1849
1850 RETURNOP (ssl_restore.op_first);
1851}
1852
1853/* declare prototype */
1854XS(XS_Coro__State__set_stacklevel);
1855
1856static OP *
1857pp_set_stacklevel (pTHX)
1858{
1859 dSP;
1860 struct transfer_args ta;
1861 SV **arg = PL_stack_base + TOPMARK + 1;
1862 int items = SP - arg; /* args without function object */
1863
1864 /* do a quick consistency check on the "function" object, and if it isn't */
1865 /* for us, divert to the real entersub */
1866 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1867 return PL_ppaddr[OP_ENTERSUB](aTHX);
1868
1869 /* pop args */
1870 SP = PL_stack_base + POPMARK;
1871
1872 if (!(PL_op->op_flags & OPf_STACKED))
1873 {
1874 /* ampersand-form of call, use @_ instead of stack */
1875 AV *av = GvAV (PL_defgv);
1876 arg = AvARRAY (av);
1877 items = AvFILLp (av) + 1;
1878 }
1879
1880 PUTBACK;
1881 switch (PL_op->op_private & 7)
1882 {
1883 case 0:
1884 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1885 break;
1886
1887 case 1:
1888 if (items != 2)
1889 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1890
1891 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1892 break;
1893
1894 case 2:
1895 prepare_schedule (aTHX_ &ta);
1896 break;
1897
1898 case 3:
1899 prepare_cede (aTHX_ &ta);
1900 break;
1901
1902 case 4:
1903 if (!prepare_cede_notself (aTHX_ &ta))
1904 goto skip;
1905
1906 break;
1907 }
1908
1909 TRANSFER (ta, 0);
1910 SPAGAIN;
1911
1912skip:
1913 PUTBACK;
1914 SSL_TAIL;
1915 SPAGAIN;
1916 RETURN;
1917}
1918
1492MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1919MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1493 1920
1494PROTOTYPES: DISABLE 1921PROTOTYPES: DISABLE
1495
1496BOOT:
1497{
1498#ifdef USE_ITHREADS
1499 MUTEX_INIT (&coro_mutex);
1500#endif
1501 BOOT_PAGESIZE;
1502
1503 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1504 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1505
1506 hv_sig = coro_get_hv ("SIG", TRUE);
1507 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1508 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1509
1510 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1511 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1512
1513 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1514
1515 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1516 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1517 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1518 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1519
1520 main_mainstack = PL_mainstack;
1521 main_top_env = PL_top_env;
1522
1523 while (main_top_env->je_prev)
1524 main_top_env = main_top_env->je_prev;
1525
1526 coroapi.ver = CORO_API_VERSION;
1527 coroapi.transfer = api_transfer;
1528
1529 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1530}
1531
1532SV *
1533new (char *klass, ...)
1534 CODE:
1535{
1536 struct coro *coro;
1537 HV *hv;
1538 int i;
1539
1540 Newz (0, coro, 1, struct coro);
1541 coro->args = newAV ();
1542 coro->flags = CF_NEW;
1543
1544 if (coro_first) coro_first->prev = coro;
1545 coro->next = coro_first;
1546 coro_first = coro;
1547
1548 coro->hv = hv = newHV ();
1549 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1550 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1551
1552 av_extend (coro->args, items - 1);
1553 for (i = 1; i < items; i++)
1554 av_push (coro->args, newSVsv (ST (i)));
1555}
1556 OUTPUT:
1557 RETVAL
1558 1922
1559# these not obviously related functions are all rolled into the same xs 1923# these not obviously related functions are all rolled into the same xs
1560# function to increase chances that they all will call transfer with the same 1924# function to increase chances that they all will call transfer with the same
1561# stack offset 1925# stack offset
1562void 1926void
… …
1566 Coro::schedule = 2 1930 Coro::schedule = 2
1567 Coro::cede = 3 1931 Coro::cede = 3
1568 Coro::cede_notself = 4 1932 Coro::cede_notself = 4
1569 CODE: 1933 CODE:
1570{ 1934{
1571 struct transfer_args ta; 1935 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1572 1936
1573 switch (ix) 1937 /* we patch the op, and then re-run the whole call */
1938 /* we have to put some dummy argument on the stack for this to work */
1939 /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
1940 ssl_restore.op_next = (OP *)&ssl_restore;
1941 ssl_restore.op_type = OP_NULL;
1942 ssl_restore.op_ppaddr = pp_restore;
1943 ssl_restore.op_first = PL_op;
1944
1945 ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
1946 ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
1947
1948 PL_op->op_ppaddr = pp_set_stacklevel;
1949 PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */
1950
1951 PL_op = (OP *)&ssl_restore;
1952}
1953
1954BOOT:
1955{
1956#ifdef USE_ITHREADS
1957 MUTEX_INIT (&coro_lock);
1958# if CORO_PTHREAD
1959 coro_thx = PERL_GET_CONTEXT;
1960# endif
1961#endif
1962 BOOT_PAGESIZE;
1963
1964 ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
1965
1966 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1967 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1968
1969 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1970 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1971 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1972
1973 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1974 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1975 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1976
1977 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1978
1979 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1980 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1981 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1982 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1983
1984 main_mainstack = PL_mainstack;
1985 main_top_env = PL_top_env;
1986
1987 while (main_top_env->je_prev)
1988 main_top_env = main_top_env->je_prev;
1989
1990 coroapi.ver = CORO_API_VERSION;
1991 coroapi.rev = CORO_API_REVISION;
1992 coroapi.transfer = api_transfer;
1993
1574 { 1994 {
1575 case 0: 1995 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1576 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1577 ta.next = 0;
1578 break;
1579 1996
1580 case 1: 1997 if (!svp) croak ("Time::HiRes is required");
1581 if (items != 2) 1998 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1582 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1583 1999
1584 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 2000 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1585 break;
1586
1587 case 2:
1588 prepare_schedule (aTHX_ &ta);
1589 break;
1590
1591 case 3:
1592 prepare_cede (aTHX_ &ta);
1593 break;
1594
1595 case 4:
1596 if (!prepare_cede_notself (aTHX_ &ta))
1597 XSRETURN_EMPTY;
1598
1599 break;
1600 } 2001 }
1601 2002
1602 BARRIER; 2003 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1603 TRANSFER (ta);
1604
1605 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1606 XSRETURN_YES;
1607} 2004}
2005
2006SV *
2007new (char *klass, ...)
2008 CODE:
2009{
2010 struct coro *coro;
2011 MAGIC *mg;
2012 HV *hv;
2013 int i;
2014
2015 Newz (0, coro, 1, struct coro);
2016 coro->args = newAV ();
2017 coro->flags = CF_NEW;
2018
2019 if (coro_first) coro_first->prev = coro;
2020 coro->next = coro_first;
2021 coro_first = coro;
2022
2023 coro->hv = hv = newHV ();
2024 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2025 mg->mg_flags |= MGf_DUP;
2026 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2027
2028 av_extend (coro->args, items - 1);
2029 for (i = 1; i < items; i++)
2030 av_push (coro->args, newSVsv (ST (i)));
2031}
2032 OUTPUT:
2033 RETVAL
1608 2034
1609bool 2035bool
1610_destroy (SV *coro_sv) 2036_destroy (SV *coro_sv)
1611 CODE: 2037 CODE:
1612 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2038 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1613 OUTPUT: 2039 OUTPUT:
1614 RETVAL 2040 RETVAL
1615 2041
1616void 2042void
1617_exit (code) 2043_exit (int code)
1618 int code
1619 PROTOTYPE: $ 2044 PROTOTYPE: $
1620 CODE: 2045 CODE:
1621 _exit (code); 2046 _exit (code);
1622 2047
1623int 2048int
1624cctx_stacksize (int new_stacksize = 0) 2049cctx_stacksize (int new_stacksize = 0)
1625 CODE: 2050 CODE:
1626 RETVAL = coro_stacksize; 2051 RETVAL = cctx_stacksize;
1627 if (new_stacksize) 2052 if (new_stacksize)
2053 {
1628 coro_stacksize = new_stacksize; 2054 cctx_stacksize = new_stacksize;
2055 ++cctx_gen;
2056 }
2057 OUTPUT:
2058 RETVAL
2059
2060int
2061cctx_max_idle (int max_idle = 0)
2062 CODE:
2063 RETVAL = cctx_max_idle;
2064 if (max_idle > 1)
2065 cctx_max_idle = max_idle;
1629 OUTPUT: 2066 OUTPUT:
1630 RETVAL 2067 RETVAL
1631 2068
1632int 2069int
1633cctx_count () 2070cctx_count ()
… …
1657call (Coro::State coro, SV *coderef) 2094call (Coro::State coro, SV *coderef)
1658 ALIAS: 2095 ALIAS:
1659 eval = 1 2096 eval = 1
1660 CODE: 2097 CODE:
1661{ 2098{
1662 if (coro->mainstack) 2099 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1663 { 2100 {
1664 struct coro temp; 2101 struct coro temp;
1665 2102
1666 if (!(coro->flags & CF_RUNNING)) 2103 if (!(coro->flags & CF_RUNNING))
1667 { 2104 {
2105 PUTBACK;
1668 save_perl (aTHX_ &temp); 2106 save_perl (aTHX_ &temp);
1669 load_perl (aTHX_ coro); 2107 load_perl (aTHX_ coro);
1670 } 2108 }
1671 2109
1672 { 2110 {
1673 dSP; 2111 dSP;
1674 ENTER; 2112 ENTER;
1675 SAVETMPS; 2113 SAVETMPS;
2114 PUTBACK;
2115 PUSHSTACK;
1676 PUSHMARK (SP); 2116 PUSHMARK (SP);
1677 PUTBACK;
1678 2117
1679 if (ix) 2118 if (ix)
1680 eval_sv (coderef, 0); 2119 eval_sv (coderef, 0);
1681 else 2120 else
1682 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 2121 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1683 2122
2123 POPSTACK;
1684 SPAGAIN; 2124 SPAGAIN;
1685 FREETMPS; 2125 FREETMPS;
1686 LEAVE; 2126 LEAVE;
1687 PUTBACK; 2127 PUTBACK;
1688 } 2128 }
1689 2129
1690 if (!(coro->flags & CF_RUNNING)) 2130 if (!(coro->flags & CF_RUNNING))
1691 { 2131 {
1692 save_perl (aTHX_ coro); 2132 save_perl (aTHX_ coro);
1693 load_perl (aTHX_ &temp); 2133 load_perl (aTHX_ &temp);
2134 SPAGAIN;
1694 } 2135 }
1695 } 2136 }
1696} 2137}
1697 2138
1698SV * 2139SV *
… …
1707 RETVAL = boolSV (coro->flags & ix); 2148 RETVAL = boolSV (coro->flags & ix);
1708 OUTPUT: 2149 OUTPUT:
1709 RETVAL 2150 RETVAL
1710 2151
1711void 2152void
2153throw (Coro::State self, SV *throw = &PL_sv_undef)
2154 PROTOTYPE: $;$
2155 CODE:
2156 SvREFCNT_dec (self->throw);
2157 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2158
2159void
1712api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2160api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1713 2161
1714SV * 2162SV *
1715has_stack (Coro::State coro) 2163has_cctx (Coro::State coro)
1716 PROTOTYPE: $ 2164 PROTOTYPE: $
1717 CODE: 2165 CODE:
1718 RETVAL = boolSV (!!coro->cctx); 2166 RETVAL = boolSV (!!coro->cctx);
1719 OUTPUT: 2167 OUTPUT:
1720 RETVAL 2168 RETVAL
… …
1725 CODE: 2173 CODE:
1726 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2174 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1727 OUTPUT: 2175 OUTPUT:
1728 RETVAL 2176 RETVAL
1729 2177
1730IV 2178UV
1731rss (Coro::State coro) 2179rss (Coro::State coro)
1732 PROTOTYPE: $ 2180 PROTOTYPE: $
1733 ALIAS: 2181 ALIAS:
1734 usecount = 1 2182 usecount = 1
1735 CODE: 2183 CODE:
… …
1739 case 1: RETVAL = coro->usecount; break; 2187 case 1: RETVAL = coro->usecount; break;
1740 } 2188 }
1741 OUTPUT: 2189 OUTPUT:
1742 RETVAL 2190 RETVAL
1743 2191
2192void
2193force_cctx ()
2194 CODE:
2195 struct coro *coro = SvSTATE (coro_current);
2196 coro->cctx->idle_sp = 0;
2197
2198void
2199swap_defsv (Coro::State self)
2200 PROTOTYPE: $
2201 ALIAS:
2202 swap_defav = 1
2203 CODE:
2204 if (!self->slot)
2205 croak ("cannot swap state with coroutine that has no saved state");
2206 else
2207 {
2208 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2209 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2210
2211 SV *tmp = *src; *src = *dst; *dst = tmp;
2212 }
1744 2213
1745MODULE = Coro::State PACKAGE = Coro 2214MODULE = Coro::State PACKAGE = Coro
1746 2215
1747BOOT: 2216BOOT:
1748{ 2217{
1749 int i; 2218 int i;
1750 2219
1751 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1752 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1753 av_async_pool = coro_get_av ("Coro::async_pool", TRUE); 2220 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2221 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2222 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1754 2223
1755 coro_current = coro_get_sv ("Coro::current", FALSE); 2224 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1756 SvREADONLY_on (coro_current); 2225 SvREADONLY_on (coro_current);
1757 2226
1758 coro_stash = gv_stashpv ("Coro", TRUE); 2227 coro_stash = gv_stashpv ("Coro", TRUE);
1759 2228
1760 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 2229 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
… …
1766 2235
1767 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2236 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1768 coro_ready[i] = newAV (); 2237 coro_ready[i] = newAV ();
1769 2238
1770 { 2239 {
1771 SV *sv = perl_get_sv ("Coro::API", TRUE); 2240 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1772 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1773 2241
1774 coroapi.schedule = api_schedule; 2242 coroapi.schedule = api_schedule;
1775 coroapi.cede = api_cede; 2243 coroapi.cede = api_cede;
1776 coroapi.cede_notself = api_cede_notself; 2244 coroapi.cede_notself = api_cede_notself;
1777 coroapi.ready = api_ready; 2245 coroapi.ready = api_ready;
… …
1788void 2256void
1789_set_current (SV *current) 2257_set_current (SV *current)
1790 PROTOTYPE: $ 2258 PROTOTYPE: $
1791 CODE: 2259 CODE:
1792 SvREFCNT_dec (SvRV (coro_current)); 2260 SvREFCNT_dec (SvRV (coro_current));
1793 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 2261 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2262
2263void
2264_set_readyhook (SV *hook)
2265 PROTOTYPE: $
2266 CODE:
2267 LOCK;
2268 SvREFCNT_dec (coro_readyhook);
2269 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2270 UNLOCK;
1794 2271
1795int 2272int
1796prio (Coro::State coro, int newprio = 0) 2273prio (Coro::State coro, int newprio = 0)
1797 ALIAS: 2274 ALIAS:
1798 nice = 1 2275 nice = 1
… …
1828 CODE: 2305 CODE:
1829 RETVAL = coro_nready; 2306 RETVAL = coro_nready;
1830 OUTPUT: 2307 OUTPUT:
1831 RETVAL 2308 RETVAL
1832 2309
1833void
1834throw (Coro::State self, SV *throw = &PL_sv_undef)
1835 PROTOTYPE: $;$
1836 CODE:
1837 SvREFCNT_dec (self->throw);
1838 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1839
1840# for async_pool speedup 2310# for async_pool speedup
1841void 2311void
1842_pool_1 (SV *cb) 2312_pool_1 (SV *cb)
1843 CODE: 2313 CODE:
1844{ 2314{
1845 struct coro *coro = SvSTATE (coro_current); 2315 struct coro *coro = SvSTATE (coro_current);
1846 HV *hv = (HV *)SvRV (coro_current); 2316 HV *hv = (HV *)SvRV (coro_current);
1847 AV *defav = GvAV (PL_defgv); 2317 AV *defav = GvAV (PL_defgv);
1848 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); 2318 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1849 AV *invoke_av; 2319 AV *invoke_av;
1850 int i, len; 2320 int i, len;
1851 2321
1852 if (!invoke) 2322 if (!invoke)
2323 {
2324 SV *old = PL_diehook;
2325 PL_diehook = 0;
2326 SvREFCNT_dec (old);
1853 croak ("\3async_pool terminate\2\n"); 2327 croak ("\3async_pool terminate\2\n");
2328 }
1854 2329
1855 SvREFCNT_dec (coro->saved_deffh); 2330 SvREFCNT_dec (coro->saved_deffh);
1856 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 2331 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1857 2332
1858 hv_store (hv, "desc", sizeof ("desc") - 1, 2333 hv_store (hv, "desc", sizeof ("desc") - 1,
1859 newSVpvn (strpair ("[async_pool]")), 0); 2334 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1860 2335
1861 invoke_av = (AV *)SvRV (invoke); 2336 invoke_av = (AV *)SvRV (invoke);
1862 len = av_len (invoke_av); 2337 len = av_len (invoke_av);
1863 2338
1864 sv_setsv (cb, AvARRAY (invoke_av)[0]); 2339 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1865 2340
1866 if (len > 0) 2341 if (len > 0)
1867 { 2342 {
1868 av_fill (defav, len - 1); 2343 av_fill (defav, len - 1);
1869 for (i = 0; i < len; ++i) 2344 for (i = 0; i < len; ++i)
1870 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 2345 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1871 } 2346 }
1872 2347
1873 SvREFCNT_dec (invoke); 2348 SvREFCNT_dec (invoke);
1874} 2349}
1875 2350
… …
1882 sv_setsv (cb, &PL_sv_undef); 2357 sv_setsv (cb, &PL_sv_undef);
1883 2358
1884 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2359 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1885 coro->saved_deffh = 0; 2360 coro->saved_deffh = 0;
1886 2361
1887 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2362 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1888 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2363 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2364 {
2365 SV *old = PL_diehook;
2366 PL_diehook = 0;
2367 SvREFCNT_dec (old);
1889 croak ("\3async_pool terminate\2\n"); 2368 croak ("\3async_pool terminate\2\n");
2369 }
1890 2370
1891 av_clear (GvAV (PL_defgv)); 2371 av_clear (GvAV (PL_defgv));
1892 hv_store ((HV *)SvRV (coro_current), strpair ("desc"), 2372 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1893 newSVpvn (strpair ("[async_pool idle]")), 0); 2373 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1894 2374
1895 coro->prio = 0; 2375 coro->prio = 0;
1896 2376
1897 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2377 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1898 api_trace (coro_current, 0); 2378 api_trace (coro_current, 0);
1899 2379
1900 av_push (av_async_pool, newSVsv (coro_current)); 2380 av_push (av_async_pool, newSVsv (coro_current));
1901} 2381}
1902 2382
2383#if 0
2384
2385void
2386_generator_call (...)
2387 PROTOTYPE: @
2388 PPCODE:
2389 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2390 xxxx
2391 abort ();
2392
2393SV *
2394gensub (SV *sub, ...)
2395 PROTOTYPE: &;@
2396 CODE:
2397{
2398 struct coro *coro;
2399 MAGIC *mg;
2400 CV *xcv;
2401 CV *ncv = (CV *)newSV_type (SVt_PVCV);
2402 int i;
2403
2404 CvGV (ncv) = CvGV (cv);
2405 CvFILE (ncv) = CvFILE (cv);
2406
2407 Newz (0, coro, 1, struct coro);
2408 coro->args = newAV ();
2409 coro->flags = CF_NEW;
2410
2411 av_extend (coro->args, items - 1);
2412 for (i = 1; i < items; i++)
2413 av_push (coro->args, newSVsv (ST (i)));
2414
2415 CvISXSUB_on (ncv);
2416 CvXSUBANY (ncv).any_ptr = (void *)coro;
2417
2418 xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
2419
2420 CvXSUB (ncv) = CvXSUB (xcv);
2421 CvANON_on (ncv);
2422
2423 mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
2424 RETVAL = newRV_noinc ((SV *)ncv);
2425}
2426 OUTPUT:
2427 RETVAL
2428
2429#endif
2430
1903 2431
1904MODULE = Coro::State PACKAGE = Coro::AIO 2432MODULE = Coro::State PACKAGE = Coro::AIO
1905 2433
1906SV * 2434void
1907_get_state () 2435_get_state (SV *self)
1908 CODE: 2436 PPCODE:
1909{ 2437{
1910 struct io_state *data; 2438 AV *defav = GvAV (PL_defgv);
1911 2439 AV *av = newAV ();
2440 int i;
1912 RETVAL = newSV (sizeof (struct io_state)); 2441 SV *data_sv = newSV (sizeof (struct io_state));
1913 data = (struct io_state *)SvPVX (RETVAL); 2442 struct io_state *data = (struct io_state *)SvPVX (data_sv);
1914 SvCUR_set (RETVAL, sizeof (struct io_state)); 2443 SvCUR_set (data_sv, sizeof (struct io_state));
1915 SvPOK_only (RETVAL); 2444 SvPOK_only (data_sv);
1916 2445
1917 data->errorno = errno; 2446 data->errorno = errno;
1918 data->laststype = PL_laststype; 2447 data->laststype = PL_laststype;
1919 data->laststatval = PL_laststatval; 2448 data->laststatval = PL_laststatval;
1920 data->statcache = PL_statcache; 2449 data->statcache = PL_statcache;
2450
2451 av_extend (av, AvFILLp (defav) + 1 + 1);
2452
2453 for (i = 0; i <= AvFILLp (defav); ++i)
2454 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
2455
2456 av_push (av, data_sv);
2457
2458 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
2459
2460 api_ready (self);
1921} 2461}
1922 OUTPUT:
1923 RETVAL
1924 2462
1925void 2463void
1926_set_state (char *data_) 2464_set_state (SV *state)
1927 PROTOTYPE: $ 2465 PROTOTYPE: $
1928 CODE: 2466 PPCODE:
1929{ 2467{
1930 struct io_state *data = (void *)data_; 2468 AV *av = (AV *)SvRV (state);
2469 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
2470 int i;
1931 2471
1932 errno = data->errorno; 2472 errno = data->errorno;
1933 PL_laststype = data->laststype; 2473 PL_laststype = data->laststype;
1934 PL_laststatval = data->laststatval; 2474 PL_laststatval = data->laststatval;
1935 PL_statcache = data->statcache; 2475 PL_statcache = data->statcache;
1936}
1937 2476
2477 EXTEND (SP, AvFILLp (av));
2478 for (i = 0; i < AvFILLp (av); ++i)
2479 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
2480}
2481
2482
2483MODULE = Coro::State PACKAGE = Coro::AnyEvent
2484
2485BOOT:
2486 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2487
2488SV *
2489_schedule (...)
2490 PROTOTYPE: @
2491 CODE:
2492{
2493 static int incede;
2494
2495 api_cede_notself ();
2496
2497 ++incede;
2498 while (coro_nready >= incede && api_cede ())
2499 ;
2500
2501 sv_setsv (sv_activity, &PL_sv_undef);
2502 if (coro_nready >= incede)
2503 {
2504 PUSHMARK (SP);
2505 PUTBACK;
2506 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2507 SPAGAIN;
2508 }
2509
2510 --incede;
2511}
2512
2513
2514MODULE = Coro::State PACKAGE = PerlIO::cede
2515
2516BOOT:
2517 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2518

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