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Comparing Coro/Coro/State.xs (file contents):
Revision 1.202 by root, Mon Oct 8 02:50:23 2007 UTC vs.
Revision 1.264 by root, Fri Nov 14 02:29:09 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);
… …
452 GvSV (irsgv) = slot->irsgv; 495 GvSV (irsgv) = slot->irsgv;
453 496
454 #define VAR(name,type) PL_ ## name = slot->name; 497 #define VAR(name,type) PL_ ## name = slot->name;
455 # include "state.h" 498 # include "state.h"
456 #undef VAR 499 #undef VAR
457
458 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
459 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
460 500
461 { 501 {
462 dSP; 502 dSP;
463 503
464 CV *cv; 504 CV *cv;
… …
503 543
504 if (expect_true (CvDEPTH (cv))) 544 if (expect_true (CvDEPTH (cv)))
505 { 545 {
506 EXTEND (SP, 3); 546 EXTEND (SP, 3);
507 PUSHs ((SV *)CvPADLIST (cv)); 547 PUSHs ((SV *)CvPADLIST (cv));
508 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 548 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
509 PUSHs ((SV *)cv); 549 PUSHs ((SV *)cv);
510 550
511 CvDEPTH (cv) = 0; 551 CvDEPTH (cv) = 0;
512 get_padlist (aTHX_ cv); 552 get_padlist (aTHX_ cv);
513 } 553 }
… …
557 * allocate various perl stacks. This is an exact copy 597 * allocate various perl stacks. This is an exact copy
558 * of perl.c:init_stacks, except that it uses less memory 598 * of perl.c:init_stacks, except that it uses less memory
559 * on the (sometimes correct) assumption that coroutines do 599 * on the (sometimes correct) assumption that coroutines do
560 * not usually need a lot of stackspace. 600 * not usually need a lot of stackspace.
561 */ 601 */
562#if 1 602#if CORO_PREFER_PERL_FUNCTIONS
563# define coro_init_stacks init_stacks 603# define coro_init_stacks init_stacks
564#else 604#else
565static void 605static void
566coro_init_stacks (pTHX) 606coro_init_stacks (pTHX)
567{ 607{
… …
593 633
594 New(54,PL_savestack,24,ANY); 634 New(54,PL_savestack,24,ANY);
595 PL_savestack_ix = 0; 635 PL_savestack_ix = 0;
596 PL_savestack_max = 24; 636 PL_savestack_max = 24;
597 637
598#if !PERL_VERSION_ATLEAST (5,9,0) 638#if !PERL_VERSION_ATLEAST (5,10,0)
599 New(54,PL_retstack,4,OP*); 639 New(54,PL_retstack,4,OP*);
600 PL_retstack_ix = 0; 640 PL_retstack_ix = 0;
601 PL_retstack_max = 4; 641 PL_retstack_max = 4;
602#endif 642#endif
603} 643}
… …
605 645
606/* 646/*
607 * destroy the stacks, the callchain etc... 647 * destroy the stacks, the callchain etc...
608 */ 648 */
609static void 649static void
610coro_destroy_stacks (pTHX) 650coro_destruct_stacks (pTHX)
611{ 651{
612 while (PL_curstackinfo->si_next) 652 while (PL_curstackinfo->si_next)
613 PL_curstackinfo = PL_curstackinfo->si_next; 653 PL_curstackinfo = PL_curstackinfo->si_next;
614 654
615 while (PL_curstackinfo) 655 while (PL_curstackinfo)
… …
626 666
627 Safefree (PL_tmps_stack); 667 Safefree (PL_tmps_stack);
628 Safefree (PL_markstack); 668 Safefree (PL_markstack);
629 Safefree (PL_scopestack); 669 Safefree (PL_scopestack);
630 Safefree (PL_savestack); 670 Safefree (PL_savestack);
631#if !PERL_VERSION_ATLEAST (5,9,0) 671#if !PERL_VERSION_ATLEAST (5,10,0)
632 Safefree (PL_retstack); 672 Safefree (PL_retstack);
633#endif 673#endif
634} 674}
635 675
636static size_t 676static size_t
… …
652 #undef VAR 692 #undef VAR
653 } 693 }
654 else 694 else
655 slot = coro->slot; 695 slot = coro->slot;
656 696
697 if (slot)
698 {
657 rss += sizeof (slot->curstackinfo); 699 rss += sizeof (slot->curstackinfo);
658 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 700 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
659 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 *);
660 rss += slot->tmps_max * sizeof (SV *); 702 rss += slot->tmps_max * sizeof (SV *);
661 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); 703 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
662 rss += slot->scopestack_max * sizeof (I32); 704 rss += slot->scopestack_max * sizeof (I32);
663 rss += slot->savestack_max * sizeof (ANY); 705 rss += slot->savestack_max * sizeof (ANY);
664 706
665#if !PERL_VERSION_ATLEAST (5,9,0) 707#if !PERL_VERSION_ATLEAST (5,10,0)
666 rss += slot->retstack_max * sizeof (OP *); 708 rss += slot->retstack_max * sizeof (OP *);
667#endif 709#endif
710 }
668 } 711 }
669 712
670 return rss; 713 return rss;
671} 714}
672 715
673/** coroutine stack handling ************************************************/ 716/** coroutine stack handling ************************************************/
717
718static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
719static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg);
720static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg);
721
722/* apparently < 5.8.8 */
723#ifndef MgPV_nolen_const
724#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \
725 SvPV_nolen((SV*)((mg)->mg_ptr)) : \
726 (const char*)(mg)->mg_ptr)
727#endif
728
729/* we sometimes need to create the effect of entersub calling us */
730#define SSL_HEAD (void)0
731/* we somtimes need to create the effect of leaving via entersub */
732#define SSL_TAIL (void)0
733
734/*
735 * This overrides the default magic get method of %SIG elements.
736 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
737 * and instead of tryign to save and restore the hash elements, we just provide
738 * readback here.
739 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
740 * not expecting this to actually change the hook. This is a potential problem
741 * when a schedule happens then, but we ignore this.
742 */
743static int
744coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
745{
746 const char *s = MgPV_nolen_const (mg);
747
748 if (*s == '_')
749 {
750 SV **svp = 0;
751
752 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
753 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
754
755 if (svp)
756 {
757 sv_setsv (sv, *svp ? *svp : &PL_sv_undef);
758 return 0;
759 }
760 }
761
762 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
763}
764
765static int
766coro_sigelem_clr (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 *old = *svp;
780 *svp = 0;
781 SvREFCNT_dec (old);
782 return 0;
783 }
784 }
785
786 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
787}
788
789static int
790coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
791{
792 const char *s = MgPV_nolen_const (mg);
793
794 if (*s == '_')
795 {
796 SV **svp = 0;
797
798 if (strEQ (s, "__DIE__" )) svp = &PL_diehook;
799 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
800
801 if (svp)
802 {
803 SV *old = *svp;
804 *svp = newSVsv (sv);
805 SvREFCNT_dec (old);
806 return 0;
807 }
808 }
809
810 return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0;
811}
674 812
675static void 813static void
676coro_setup (pTHX_ struct coro *coro) 814coro_setup (pTHX_ struct coro *coro)
677{ 815{
678 /* 816 /*
… …
687 PL_curpm = 0; 825 PL_curpm = 0;
688 PL_curpad = 0; 826 PL_curpad = 0;
689 PL_localizing = 0; 827 PL_localizing = 0;
690 PL_dirty = 0; 828 PL_dirty = 0;
691 PL_restartop = 0; 829 PL_restartop = 0;
692 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); 830#if PERL_VERSION_ATLEAST (5,10,0)
693 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); 831 PL_parser = 0;
832#endif
833
834 /* recreate the die/warn hooks */
835 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
836 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
694 837
695 GvSV (PL_defgv) = newSV (0); 838 GvSV (PL_defgv) = newSV (0);
696 GvAV (PL_defgv) = coro->args; coro->args = 0; 839 GvAV (PL_defgv) = coro->args; coro->args = 0;
697 GvSV (PL_errgv) = newSV (0); 840 GvSV (PL_errgv) = newSV (0);
698 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 841 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
699 PL_rs = newSVsv (GvSV (irsgv)); 842 PL_rs = newSVsv (GvSV (irsgv));
700 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); 843 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
701 844
702 { 845 {
703 dSP; 846 dSP;
704 LOGOP myop; 847 UNOP myop;
705 848
706 Zero (&myop, 1, LOGOP); 849 Zero (&myop, 1, UNOP);
707 myop.op_next = Nullop; 850 myop.op_next = Nullop;
708 myop.op_flags = OPf_WANT_VOID; 851 myop.op_flags = OPf_WANT_VOID;
709 852
710 PUSHMARK (SP); 853 PUSHMARK (SP);
711 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 854 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
… …
713 PL_op = (OP *)&myop; 856 PL_op = (OP *)&myop;
714 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 857 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
715 SPAGAIN; 858 SPAGAIN;
716 } 859 }
717 860
718 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ 861 /* this newly created coroutine might be run on an existing cctx which most
862 * likely was suspended in set_stacklevel, called from entersub.
863 * set_stacklevel doesn't do anything on return, but entersub does LEAVE,
864 * so we ENTER here for symmetry.
865 */
866 SSL_HEAD;
719} 867}
720 868
721static void 869static void
722coro_destroy (pTHX_ struct coro *coro) 870coro_destruct (pTHX_ struct coro *coro)
723{ 871{
724 if (!IN_DESTRUCT) 872 if (!IN_DESTRUCT)
725 { 873 {
726 /* restore all saved variables and stuff */ 874 /* restore all saved variables and stuff */
727 LEAVE_SCOPE (0); 875 LEAVE_SCOPE (0);
… …
749 SvREFCNT_dec (PL_warnhook); 897 SvREFCNT_dec (PL_warnhook);
750 898
751 SvREFCNT_dec (coro->saved_deffh); 899 SvREFCNT_dec (coro->saved_deffh);
752 SvREFCNT_dec (coro->throw); 900 SvREFCNT_dec (coro->throw);
753 901
754 coro_destroy_stacks (aTHX); 902 coro_destruct_stacks (aTHX);
755} 903}
756 904
757static void 905INLINE void
758free_coro_mortal (pTHX) 906free_coro_mortal (pTHX)
759{ 907{
760 if (expect_true (coro_mortal)) 908 if (expect_true (coro_mortal))
761 { 909 {
762 SvREFCNT_dec (coro_mortal); 910 SvREFCNT_dec (coro_mortal);
… …
796 : cx->blk_gimme == G_SCALAR ? bot + 1 944 : cx->blk_gimme == G_SCALAR ? bot + 1
797 : bot; 945 : bot;
798 946
799 av_extend (av, top - bot); 947 av_extend (av, top - bot);
800 while (bot < top) 948 while (bot < top)
801 av_push (av, SvREFCNT_inc (*bot++)); 949 av_push (av, SvREFCNT_inc_NN (*bot++));
802 950
803 PL_runops = RUNOPS_DEFAULT; 951 PL_runops = RUNOPS_DEFAULT;
804 ENTER; 952 ENTER;
805 SAVETMPS; 953 SAVETMPS;
806 EXTEND (SP, 3); 954 EXTEND (SP, 3);
807 PUSHMARK (SP); 955 PUSHMARK (SP);
808 PUSHs (&PL_sv_no); 956 PUSHs (&PL_sv_no);
809 PUSHs (fullname); 957 PUSHs (fullname);
810 PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); 958 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
811 PUTBACK; 959 PUTBACK;
812 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 960 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
813 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 961 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
814 SPAGAIN; 962 SPAGAIN;
815 FREETMPS; 963 FREETMPS;
816 LEAVE; 964 LEAVE;
817 PL_runops = runops_trace; 965 PL_runops = runops_trace;
… …
844 SAVETMPS; 992 SAVETMPS;
845 EXTEND (SP, 3); 993 EXTEND (SP, 3);
846 PUSHMARK (SP); 994 PUSHMARK (SP);
847 PUSHs (&PL_sv_yes); 995 PUSHs (&PL_sv_yes);
848 PUSHs (fullname); 996 PUSHs (fullname);
849 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 997 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
850 PUTBACK; 998 PUTBACK;
851 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); 999 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
852 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1000 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
853 SPAGAIN; 1001 SPAGAIN;
854 FREETMPS; 1002 FREETMPS;
855 LEAVE; 1003 LEAVE;
856 PL_runops = runops_trace; 1004 PL_runops = runops_trace;
… …
870 PL_runops = RUNOPS_DEFAULT; 1018 PL_runops = RUNOPS_DEFAULT;
871 PUSHMARK (SP); 1019 PUSHMARK (SP);
872 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); 1020 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
873 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); 1021 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
874 PUTBACK; 1022 PUTBACK;
875 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); 1023 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
876 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1024 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
877 SPAGAIN; 1025 SPAGAIN;
878 FREETMPS; 1026 FREETMPS;
879 LEAVE; 1027 LEAVE;
880 PL_runops = runops_trace; 1028 PL_runops = runops_trace;
… …
886 1034
887 TAINT_NOT; 1035 TAINT_NOT;
888 return 0; 1036 return 0;
889} 1037}
890 1038
1039static void
1040prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx)
1041{
1042 ta->prev = (struct coro *)cctx;
1043 ta->next = 0;
1044}
1045
891/* inject a fake call to Coro::State::_cctx_init into the execution */ 1046/* inject a fake call to Coro::State::_cctx_init into the execution */
892/* _cctx_init should be careful, as it could be called at almost any time */ 1047/* _cctx_init should be careful, as it could be called at almost any time */
893/* during execution of a perl program */ 1048/* during execution of a perl program */
1049/* also initialises PL_top_env */
894static void NOINLINE 1050static void NOINLINE
895cctx_prepare (pTHX_ coro_cctx *cctx) 1051cctx_prepare (pTHX_ coro_cctx *cctx)
896{ 1052{
897 dSP; 1053 dSP;
898 LOGOP myop; 1054 UNOP myop;
899 1055
900 PL_top_env = &PL_start_env; 1056 PL_top_env = &PL_start_env;
901 1057
902 if (cctx->flags & CC_TRACE) 1058 if (cctx->flags & CC_TRACE)
903 PL_runops = runops_trace; 1059 PL_runops = runops_trace;
904 1060
905 Zero (&myop, 1, LOGOP); 1061 Zero (&myop, 1, UNOP);
906 myop.op_next = PL_op; 1062 myop.op_next = PL_op;
907 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 1063 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
908 1064
909 PUSHMARK (SP); 1065 PUSHMARK (SP);
910 EXTEND (SP, 2); 1066 EXTEND (SP, 2);
911 PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); 1067 PUSHs (sv_2mortal (newSViv ((IV)cctx)));
912 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); 1068 PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE));
913 PUTBACK; 1069 PUTBACK;
914 PL_op = (OP *)&myop; 1070 PL_op = (OP *)&myop;
915 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1071 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
916 SPAGAIN; 1072 SPAGAIN;
917} 1073}
918 1074
1075/* the tail of transfer: execute stuff we can only do after a transfer */
1076INLINE void
1077transfer_tail (pTHX)
1078{
1079 struct coro *next = (struct coro *)transfer_next;
1080 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1081 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1082
1083 free_coro_mortal (aTHX);
1084 UNLOCK;
1085
1086 if (expect_false (next->throw))
1087 {
1088 SV *exception = sv_2mortal (next->throw);
1089
1090 next->throw = 0;
1091 sv_setsv (ERRSV, exception);
1092 croak (0);
1093 }
1094}
1095
919/* 1096/*
920 * this is a _very_ stripped down perl interpreter ;) 1097 * this is a _very_ stripped down perl interpreter ;)
921 */ 1098 */
922static void 1099static void
923cctx_run (void *arg) 1100cctx_run (void *arg)
924{ 1101{
1102#ifdef USE_ITHREADS
1103# if CORO_PTHREAD
1104 PERL_SET_CONTEXT (coro_thx);
1105# endif
1106#endif
1107 {
925 dTHX; 1108 dTHX;
926 1109
927 /* cctx_run is the alternative tail of transfer(), so unlock here. */ 1110 /* entersub called ENTER, but we never 'returned', undo that here */
928 UNLOCK; 1111 SSL_TAIL;
929 1112
930 /* we now skip the entersub that lead to transfer() */ 1113 /* we now skip the op that did lead to transfer() */
931 PL_op = PL_op->op_next; 1114 PL_op = PL_op->op_next;
932 1115
933 /* inject a fake subroutine call to cctx_init */ 1116 /* inject a fake subroutine call to cctx_init */
934 cctx_prepare (aTHX_ (coro_cctx *)arg); 1117 cctx_prepare (aTHX_ (coro_cctx *)arg);
935 1118
1119 /* cctx_run is the alternative tail of transfer() */
1120 transfer_tail (aTHX);
1121
936 /* somebody or something will hit me for both perl_run and PL_restartop */ 1122 /* somebody or something will hit me for both perl_run and PL_restartop */
937 PL_restartop = PL_op; 1123 PL_restartop = PL_op;
938 perl_run (PL_curinterp); 1124 perl_run (PL_curinterp);
939 1125
940 /* 1126 /*
941 * If perl-run returns we assume exit() was being called or the coro 1127 * If perl-run returns we assume exit() was being called or the coro
942 * fell off the end, which seems to be the only valid (non-bug) 1128 * fell off the end, which seems to be the only valid (non-bug)
943 * reason for perl_run to return. We try to exit by jumping to the 1129 * reason for perl_run to return. We try to exit by jumping to the
944 * bootstrap-time "top" top_env, as we cannot restore the "main" 1130 * bootstrap-time "top" top_env, as we cannot restore the "main"
945 * coroutine as Coro has no such concept 1131 * coroutine as Coro has no such concept
946 */ 1132 */
947 PL_top_env = main_top_env; 1133 PL_top_env = main_top_env;
948 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1134 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1135 }
949} 1136}
950 1137
951static coro_cctx * 1138static coro_cctx *
952cctx_new () 1139cctx_new ()
953{ 1140{
954 coro_cctx *cctx; 1141 coro_cctx *cctx;
1142
1143 ++cctx_count;
1144 New (0, cctx, 1, coro_cctx);
1145
1146 cctx->gen = cctx_gen;
1147 cctx->flags = 0;
1148 cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */
1149
1150 return cctx;
1151}
1152
1153/* create a new cctx only suitable as source */
1154static coro_cctx *
1155cctx_new_empty ()
1156{
1157 coro_cctx *cctx = cctx_new ();
1158
1159 cctx->sptr = 0;
1160 coro_create (&cctx->cctx, 0, 0, 0, 0);
1161
1162 return cctx;
1163}
1164
1165/* create a new cctx suitable as destination/running a perl interpreter */
1166static coro_cctx *
1167cctx_new_run ()
1168{
1169 coro_cctx *cctx = cctx_new ();
955 void *stack_start; 1170 void *stack_start;
956 size_t stack_size; 1171 size_t stack_size;
957 1172
958 ++cctx_count;
959
960 Newz (0, cctx, 1, coro_cctx);
961
962#if HAVE_MMAP 1173#if HAVE_MMAP
963 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 1174 cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
964 /* mmap supposedly does allocate-on-write for us */ 1175 /* mmap supposedly does allocate-on-write for us */
965 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 1176 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
966 1177
967 if (cctx->sptr != (void *)-1) 1178 if (cctx->sptr != (void *)-1)
968 { 1179 {
969# if CORO_STACKGUARD 1180 #if CORO_STACKGUARD
970 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1181 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
971# endif 1182 #endif
972 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1183 stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE;
973 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1184 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
974 cctx->flags |= CC_MAPPED; 1185 cctx->flags |= CC_MAPPED;
975 } 1186 }
976 else 1187 else
977#endif 1188#endif
978 { 1189 {
979 cctx->ssize = coro_stacksize * (long)sizeof (long); 1190 cctx->ssize = cctx_stacksize * (long)sizeof (long);
980 New (0, cctx->sptr, coro_stacksize, long); 1191 New (0, cctx->sptr, cctx_stacksize, long);
981 1192
982 if (!cctx->sptr) 1193 if (!cctx->sptr)
983 { 1194 {
984 perror ("FATAL: unable to allocate stack for coroutine"); 1195 perror ("FATAL: unable to allocate stack for coroutine, exiting.");
985 _exit (EXIT_FAILURE); 1196 _exit (EXIT_FAILURE);
986 } 1197 }
987 1198
988 stack_start = cctx->sptr; 1199 stack_start = cctx->sptr;
989 stack_size = cctx->ssize; 1200 stack_size = cctx->ssize;
990 } 1201 }
991 1202
992 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1203 #if CORO_USE_VALGRIND
1204 cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size);
1205 #endif
1206
993 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); 1207 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
994 1208
995 return cctx; 1209 return cctx;
996} 1210}
997 1211
… …
1000{ 1214{
1001 if (!cctx) 1215 if (!cctx)
1002 return; 1216 return;
1003 1217
1004 --cctx_count; 1218 --cctx_count;
1219 coro_destroy (&cctx->cctx);
1005 1220
1221 /* coro_transfer creates new, empty cctx's */
1222 if (cctx->sptr)
1223 {
1006#if CORO_USE_VALGRIND 1224 #if CORO_USE_VALGRIND
1007 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1225 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
1008#endif 1226 #endif
1009 1227
1010#if HAVE_MMAP 1228#if HAVE_MMAP
1011 if (cctx->flags & CC_MAPPED) 1229 if (cctx->flags & CC_MAPPED)
1012 munmap (cctx->sptr, cctx->ssize); 1230 munmap (cctx->sptr, cctx->ssize);
1013 else 1231 else
1014#endif 1232#endif
1015 Safefree (cctx->sptr); 1233 Safefree (cctx->sptr);
1234 }
1016 1235
1017 Safefree (cctx); 1236 Safefree (cctx);
1018} 1237}
1019 1238
1020/* wether this cctx should be destructed */ 1239/* wether this cctx should be destructed */
1021#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) 1240#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1022 1241
1023static coro_cctx * 1242static coro_cctx *
1024cctx_get (pTHX) 1243cctx_get (pTHX)
1025{ 1244{
1026 while (expect_true (cctx_first)) 1245 while (expect_true (cctx_first))
… …
1033 return cctx; 1252 return cctx;
1034 1253
1035 cctx_destroy (cctx); 1254 cctx_destroy (cctx);
1036 } 1255 }
1037 1256
1038 return cctx_new (); 1257 return cctx_new_run ();
1039} 1258}
1040 1259
1041static void 1260static void
1042cctx_put (coro_cctx *cctx) 1261cctx_put (coro_cctx *cctx)
1043{ 1262{
1263 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1264
1044 /* free another cctx if overlimit */ 1265 /* free another cctx if overlimit */
1045 if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) 1266 if (expect_false (cctx_idle >= cctx_max_idle))
1046 { 1267 {
1047 coro_cctx *first = cctx_first; 1268 coro_cctx *first = cctx_first;
1048 cctx_first = first->next; 1269 cctx_first = first->next;
1049 --cctx_idle; 1270 --cctx_idle;
1050 1271
… …
1070 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); 1291 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1071 1292
1072 if (expect_false (next->flags & CF_DESTROYED)) 1293 if (expect_false (next->flags & CF_DESTROYED))
1073 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); 1294 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1074 1295
1075 if (
1076#if PERL_VERSION_ATLEAST (5,9,0) 1296#if !PERL_VERSION_ATLEAST (5,10,0)
1077 expect_false (PL_parser)
1078#else
1079 expect_false (PL_lex_state != LEX_NOTPARSING) 1297 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1080#endif
1081 )
1082 croak ("Coro::State::transfer called while parsing, but this is not supported"); 1298 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version");
1299#endif
1083 } 1300 }
1084} 1301}
1085 1302
1086/* always use the TRANSFER macro */ 1303/* always use the TRANSFER macro */
1087static void NOINLINE 1304static void NOINLINE
1088transfer (pTHX_ struct coro *prev, struct coro *next) 1305transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1089{ 1306{
1090 dSTACKLEVEL; 1307 dSTACKLEVEL;
1091 1308
1092 /* sometimes transfer is only called to set idle_sp */ 1309 /* sometimes transfer is only called to set idle_sp */
1093 if (expect_false (!next)) 1310 if (expect_false (!next))
… …
1099 { 1316 {
1100 coro_cctx *prev__cctx; 1317 coro_cctx *prev__cctx;
1101 1318
1102 if (expect_false (prev->flags & CF_NEW)) 1319 if (expect_false (prev->flags & CF_NEW))
1103 { 1320 {
1104 /* create a new empty context */ 1321 /* create a new empty/source context */
1105 Newz (0, prev->cctx, 1, coro_cctx); 1322 prev->cctx = cctx_new_empty ();
1106 prev->flags &= ~CF_NEW; 1323 prev->flags &= ~CF_NEW;
1107 prev->flags |= CF_RUNNING; 1324 prev->flags |= CF_RUNNING;
1108 } 1325 }
1109 1326
1110 prev->flags &= ~CF_RUNNING; 1327 prev->flags &= ~CF_RUNNING;
1111 next->flags |= CF_RUNNING; 1328 next->flags |= CF_RUNNING;
1112 1329
1113 LOCK; 1330 LOCK;
1331
1332 /* first get rid of the old state */
1333 save_perl (aTHX_ prev);
1114 1334
1115 if (expect_false (next->flags & CF_NEW)) 1335 if (expect_false (next->flags & CF_NEW))
1116 { 1336 {
1117 /* need to start coroutine */ 1337 /* need to start coroutine */
1118 next->flags &= ~CF_NEW; 1338 next->flags &= ~CF_NEW;
1119 /* first get rid of the old state */
1120 save_perl (aTHX_ prev);
1121 /* setup coroutine call */ 1339 /* setup coroutine call */
1122 coro_setup (aTHX_ next); 1340 coro_setup (aTHX_ next);
1123 } 1341 }
1124 else 1342 else
1125 {
1126 /* coroutine already started */
1127 save_perl (aTHX_ prev);
1128 load_perl (aTHX_ next); 1343 load_perl (aTHX_ next);
1129 }
1130 1344
1131 prev__cctx = prev->cctx; 1345 prev__cctx = prev->cctx;
1132 1346
1133 /* possibly "free" the cctx */ 1347 /* possibly untie and reuse the cctx */
1134 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) 1348 if (expect_true (
1349 prev__cctx->idle_sp == STACKLEVEL
1350 && !(prev__cctx->flags & CC_TRACE)
1351 && !force_cctx
1352 ))
1135 { 1353 {
1136 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1354 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
1137 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1355 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te));
1138 1356
1139 prev->cctx = 0; 1357 prev->cctx = 0;
1140 1358
1141 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1359 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1142 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1360 /* without this the next cctx_get might destroy the prev__cctx while still in use */
… …
1149 1367
1150 ++next->usecount; 1368 ++next->usecount;
1151 1369
1152 if (expect_true (!next->cctx)) 1370 if (expect_true (!next->cctx))
1153 next->cctx = cctx_get (aTHX); 1371 next->cctx = cctx_get (aTHX);
1372
1373 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1374 transfer_next = next;
1154 1375
1155 if (expect_false (prev__cctx != next->cctx)) 1376 if (expect_false (prev__cctx != next->cctx))
1156 { 1377 {
1157 prev__cctx->top_env = PL_top_env; 1378 prev__cctx->top_env = PL_top_env;
1158 PL_top_env = next->cctx->top_env; 1379 PL_top_env = next->cctx->top_env;
1159 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1380 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
1160 } 1381 }
1161 1382
1162 free_coro_mortal (aTHX); 1383 transfer_tail (aTHX);
1163 UNLOCK;
1164
1165 if (expect_false (prev->throw || next->throw))
1166 {
1167 struct coro *coro = SvSTATE (coro_current);
1168
1169 if (coro->throw)
1170 {
1171 SV *exception = coro->throw;
1172 coro->throw = 0;
1173 sv_setsv (ERRSV, exception);
1174 croak (0);
1175 }
1176 }
1177 } 1384 }
1178} 1385}
1179 1386
1180struct transfer_args
1181{
1182 struct coro *prev, *next;
1183};
1184
1185#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1387#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1186#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1388#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1187 1389
1188/** high level stuff ********************************************************/ 1390/** high level stuff ********************************************************/
1189 1391
1190static int 1392static int
… …
1214 croak ("FATAL: tried to destroy currently running coroutine"); 1416 croak ("FATAL: tried to destroy currently running coroutine");
1215 1417
1216 save_perl (aTHX_ &temp); 1418 save_perl (aTHX_ &temp);
1217 load_perl (aTHX_ coro); 1419 load_perl (aTHX_ coro);
1218 1420
1219 coro_destroy (aTHX_ coro); 1421 coro_destruct (aTHX_ coro);
1220 1422
1221 load_perl (aTHX_ &temp); 1423 load_perl (aTHX_ &temp);
1222 1424
1223 coro->slot = 0; 1425 coro->slot = 0;
1224 } 1426 }
… …
1284{ 1486{
1285 dTHX; 1487 dTHX;
1286 struct transfer_args ta; 1488 struct transfer_args ta;
1287 1489
1288 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1490 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1289 TRANSFER (ta); 1491 TRANSFER (ta, 1);
1290} 1492}
1291 1493
1292/** Coro ********************************************************************/ 1494/** Coro ********************************************************************/
1293 1495
1294static void 1496static void
… …
1296{ 1498{
1297 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1499 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
1298} 1500}
1299 1501
1300static SV * 1502static SV *
1301coro_deq (pTHX_ int min_prio) 1503coro_deq (pTHX)
1302{ 1504{
1303 int prio = PRIO_MAX - PRIO_MIN; 1505 int prio;
1304 1506
1305 min_prio -= PRIO_MIN;
1306 if (min_prio < 0)
1307 min_prio = 0;
1308
1309 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1507 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
1310 if (AvFILLp (coro_ready [prio]) >= 0) 1508 if (AvFILLp (coro_ready [prio]) >= 0)
1311 return av_shift (coro_ready [prio]); 1509 return av_shift (coro_ready [prio]);
1312 1510
1313 return 0; 1511 return 0;
1314} 1512}
… …
1316static int 1514static int
1317api_ready (SV *coro_sv) 1515api_ready (SV *coro_sv)
1318{ 1516{
1319 dTHX; 1517 dTHX;
1320 struct coro *coro; 1518 struct coro *coro;
1519 SV *sv_hook;
1520 void (*xs_hook)(void);
1321 1521
1322 if (SvROK (coro_sv)) 1522 if (SvROK (coro_sv))
1323 coro_sv = SvRV (coro_sv); 1523 coro_sv = SvRV (coro_sv);
1324 1524
1325 coro = SvSTATE (coro_sv); 1525 coro = SvSTATE (coro_sv);
… …
1328 return 0; 1528 return 0;
1329 1529
1330 coro->flags |= CF_READY; 1530 coro->flags |= CF_READY;
1331 1531
1332 LOCK; 1532 LOCK;
1533
1534 sv_hook = coro_nready ? 0 : coro_readyhook;
1535 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1536
1333 coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); 1537 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv));
1334 ++coro_nready; 1538 ++coro_nready;
1539
1335 UNLOCK; 1540 UNLOCK;
1541
1542 if (sv_hook)
1543 {
1544 dSP;
1545
1546 ENTER;
1547 SAVETMPS;
1548
1549 PUSHMARK (SP);
1550 PUTBACK;
1551 call_sv (sv_hook, G_DISCARD);
1552 SPAGAIN;
1553
1554 FREETMPS;
1555 LEAVE;
1556 }
1557
1558 if (xs_hook)
1559 xs_hook ();
1336 1560
1337 return 1; 1561 return 1;
1338} 1562}
1339 1563
1340static int 1564static int
1341api_is_ready (SV *coro_sv) 1565api_is_ready (SV *coro_sv)
1342{ 1566{
1343 dTHX; 1567 dTHX;
1568
1344 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1569 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1345} 1570}
1346 1571
1347static void 1572INLINE void
1348prepare_schedule (pTHX_ struct transfer_args *ta) 1573prepare_schedule (pTHX_ struct transfer_args *ta)
1349{ 1574{
1350 SV *prev_sv, *next_sv; 1575 SV *prev_sv, *next_sv;
1351 1576
1352 for (;;) 1577 for (;;)
1353 { 1578 {
1354 LOCK; 1579 LOCK;
1355 next_sv = coro_deq (aTHX_ PRIO_MIN); 1580 next_sv = coro_deq (aTHX);
1356 1581
1357 /* nothing to schedule: call the idle handler */ 1582 /* nothing to schedule: call the idle handler */
1358 if (expect_false (!next_sv)) 1583 if (expect_false (!next_sv))
1359 { 1584 {
1360 dSP; 1585 dSP;
… …
1364 SAVETMPS; 1589 SAVETMPS;
1365 1590
1366 PUSHMARK (SP); 1591 PUSHMARK (SP);
1367 PUTBACK; 1592 PUTBACK;
1368 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); 1593 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1594 SPAGAIN;
1369 1595
1370 FREETMPS; 1596 FREETMPS;
1371 LEAVE; 1597 LEAVE;
1372 continue; 1598 continue;
1373 } 1599 }
… …
1377 /* cannot transfer to destroyed coros, skip and look for next */ 1603 /* cannot transfer to destroyed coros, skip and look for next */
1378 if (expect_false (ta->next->flags & CF_DESTROYED)) 1604 if (expect_false (ta->next->flags & CF_DESTROYED))
1379 { 1605 {
1380 UNLOCK; 1606 UNLOCK;
1381 SvREFCNT_dec (next_sv); 1607 SvREFCNT_dec (next_sv);
1382 /* coro_nready is already taken care of by destroy */ 1608 /* coro_nready has already been taken care of by destroy */
1383 continue; 1609 continue;
1384 } 1610 }
1385 1611
1386 --coro_nready; 1612 --coro_nready;
1387 UNLOCK; 1613 UNLOCK;
… …
1390 1616
1391 /* free this only after the transfer */ 1617 /* free this only after the transfer */
1392 prev_sv = SvRV (coro_current); 1618 prev_sv = SvRV (coro_current);
1393 ta->prev = SvSTATE (prev_sv); 1619 ta->prev = SvSTATE (prev_sv);
1394 TRANSFER_CHECK (*ta); 1620 TRANSFER_CHECK (*ta);
1395 assert (ta->next->flags & CF_READY); 1621 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1396 ta->next->flags &= ~CF_READY; 1622 ta->next->flags &= ~CF_READY;
1397 SvRV_set (coro_current, next_sv); 1623 SvRV_set (coro_current, next_sv);
1398 1624
1399 LOCK; 1625 LOCK;
1400 free_coro_mortal (aTHX); 1626 free_coro_mortal (aTHX);
1401 coro_mortal = prev_sv; 1627 coro_mortal = prev_sv;
1402 UNLOCK; 1628 UNLOCK;
1403} 1629}
1404 1630
1405static void 1631INLINE void
1406prepare_cede (pTHX_ struct transfer_args *ta) 1632prepare_cede (pTHX_ struct transfer_args *ta)
1407{ 1633{
1408 api_ready (coro_current); 1634 api_ready (coro_current);
1409 prepare_schedule (aTHX_ ta); 1635 prepare_schedule (aTHX_ ta);
1410} 1636}
… …
1428{ 1654{
1429 dTHX; 1655 dTHX;
1430 struct transfer_args ta; 1656 struct transfer_args ta;
1431 1657
1432 prepare_schedule (aTHX_ &ta); 1658 prepare_schedule (aTHX_ &ta);
1433 TRANSFER (ta); 1659 TRANSFER (ta, 1);
1434} 1660}
1435 1661
1436static int 1662static int
1437api_cede (void) 1663api_cede (void)
1438{ 1664{
… …
1441 1667
1442 prepare_cede (aTHX_ &ta); 1668 prepare_cede (aTHX_ &ta);
1443 1669
1444 if (expect_true (ta.prev != ta.next)) 1670 if (expect_true (ta.prev != ta.next))
1445 { 1671 {
1446 TRANSFER (ta); 1672 TRANSFER (ta, 1);
1447 return 1; 1673 return 1;
1448 } 1674 }
1449 else 1675 else
1450 return 0; 1676 return 0;
1451} 1677}
… …
1456 dTHX; 1682 dTHX;
1457 struct transfer_args ta; 1683 struct transfer_args ta;
1458 1684
1459 if (prepare_cede_notself (aTHX_ &ta)) 1685 if (prepare_cede_notself (aTHX_ &ta))
1460 { 1686 {
1461 TRANSFER (ta); 1687 TRANSFER (ta, 1);
1462 return 1; 1688 return 1;
1463 } 1689 }
1464 else 1690 else
1465 return 0; 1691 return 0;
1466} 1692}
… …
1472 struct coro *coro = SvSTATE (coro_sv); 1698 struct coro *coro = SvSTATE (coro_sv);
1473 1699
1474 if (flags & CC_TRACE) 1700 if (flags & CC_TRACE)
1475 { 1701 {
1476 if (!coro->cctx) 1702 if (!coro->cctx)
1477 coro->cctx = cctx_new (); 1703 coro->cctx = cctx_new_run ();
1478 else if (!(coro->cctx->flags & CC_TRACE)) 1704 else if (!(coro->cctx->flags & CC_TRACE))
1479 croak ("cannot enable tracing on coroutine with custom stack"); 1705 croak ("cannot enable tracing on coroutine with custom stack");
1480 1706
1481 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1707 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1482 } 1708 }
… …
1489 else 1715 else
1490 coro->slot->runops = RUNOPS_DEFAULT; 1716 coro->slot->runops = RUNOPS_DEFAULT;
1491 } 1717 }
1492} 1718}
1493 1719
1720#if 0
1721static int
1722coro_gensub_free (pTHX_ SV *sv, MAGIC *mg)
1723{
1724 AV *padlist;
1725 AV *av = (AV *)mg->mg_obj;
1726
1727 abort ();
1728
1729 return 0;
1730}
1731
1732static MGVTBL coro_gensub_vtbl = {
1733 0, 0, 0, 0,
1734 coro_gensub_free
1735};
1736#endif
1737
1738/*****************************************************************************/
1739/* PerlIO::cede */
1740
1741typedef struct
1742{
1743 PerlIOBuf base;
1744 NV next, every;
1745} PerlIOCede;
1746
1747static IV
1748PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
1749{
1750 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1751
1752 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
1753 self->next = nvtime () + self->every;
1754
1755 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
1756}
1757
1758static SV *
1759PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
1760{
1761 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1762
1763 return newSVnv (self->every);
1764}
1765
1766static IV
1767PerlIOCede_flush (pTHX_ PerlIO *f)
1768{
1769 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
1770 double now = nvtime ();
1771
1772 if (now >= self->next)
1773 {
1774 api_cede ();
1775 self->next = now + self->every;
1776 }
1777
1778 return PerlIOBuf_flush (aTHX_ f);
1779}
1780
1781static PerlIO_funcs PerlIO_cede =
1782{
1783 sizeof(PerlIO_funcs),
1784 "cede",
1785 sizeof(PerlIOCede),
1786 PERLIO_K_DESTRUCT | PERLIO_K_RAW,
1787 PerlIOCede_pushed,
1788 PerlIOBuf_popped,
1789 PerlIOBuf_open,
1790 PerlIOBase_binmode,
1791 PerlIOCede_getarg,
1792 PerlIOBase_fileno,
1793 PerlIOBuf_dup,
1794 PerlIOBuf_read,
1795 PerlIOBuf_unread,
1796 PerlIOBuf_write,
1797 PerlIOBuf_seek,
1798 PerlIOBuf_tell,
1799 PerlIOBuf_close,
1800 PerlIOCede_flush,
1801 PerlIOBuf_fill,
1802 PerlIOBase_eof,
1803 PerlIOBase_error,
1804 PerlIOBase_clearerr,
1805 PerlIOBase_setlinebuf,
1806 PerlIOBuf_get_base,
1807 PerlIOBuf_bufsiz,
1808 PerlIOBuf_get_ptr,
1809 PerlIOBuf_get_cnt,
1810 PerlIOBuf_set_ptrcnt,
1811};
1812
1813/*****************************************************************************/
1814
1815static const CV *ssl_cv; /* for quick consistency check */
1816
1817static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */
1818static SV *ssl_arg0;
1819static SV *ssl_arg1;
1820
1821/* this restores the stack in the case we patched the entersub, to */
1822/* recreate the stack frame as perl will on following calls */
1823/* since entersub cleared the stack */
1824static OP *
1825pp_restore (pTHX)
1826{
1827 dSP;
1828
1829 PUSHMARK (SP);
1830
1831 EXTEND (SP, 3);
1832 if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0;
1833 if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0;
1834 PUSHs ((SV *)CvGV (ssl_cv));
1835
1836 RETURNOP (ssl_restore.op_first);
1837}
1838
1839/* declare prototype */
1840XS(XS_Coro__State__set_stacklevel);
1841
1842static OP *
1843pp_set_stacklevel (pTHX)
1844{
1845 dSP;
1846 struct transfer_args ta;
1847 SV **arg = PL_stack_base + TOPMARK + 1;
1848 int items = SP - arg; /* args without function object */
1849
1850 /* do a quick consistency check on the "function" object, and if it isn't */
1851 /* for us, divert to the real entersub */
1852 if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel)
1853 return PL_ppaddr[OP_ENTERSUB](aTHX);
1854
1855 /* pop args */
1856 SP = PL_stack_base + POPMARK;
1857
1858 if (!(PL_op->op_flags & OPf_STACKED))
1859 {
1860 /* ampersand-form of call, use @_ instead of stack */
1861 AV *av = GvAV (PL_defgv);
1862 arg = AvARRAY (av);
1863 items = AvFILLp (av) + 1;
1864 }
1865
1866 PUTBACK;
1867 switch (PL_op->op_private & 7)
1868 {
1869 case 0:
1870 prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0]));
1871 break;
1872
1873 case 1:
1874 if (items != 2)
1875 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items);
1876
1877 prepare_transfer (aTHX_ &ta, arg [0], arg [1]);
1878 break;
1879
1880 case 2:
1881 prepare_schedule (aTHX_ &ta);
1882 break;
1883
1884 case 3:
1885 prepare_cede (aTHX_ &ta);
1886 break;
1887
1888 case 4:
1889 if (!prepare_cede_notself (aTHX_ &ta))
1890 RETURN;
1891
1892 break;
1893 }
1894
1895 TRANSFER (ta, 0);
1896 SPAGAIN;
1897
1898skip:
1899
1900 RETURN;
1901}
1902
1494MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 1903MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1495 1904
1496PROTOTYPES: DISABLE 1905PROTOTYPES: DISABLE
1497
1498BOOT:
1499{
1500#ifdef USE_ITHREADS
1501 MUTEX_INIT (&coro_mutex);
1502#endif
1503 BOOT_PAGESIZE;
1504
1505 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1506 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1507
1508 hv_sig = coro_get_hv ("SIG", TRUE);
1509 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1510 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1511
1512 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1513 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1514
1515 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1516
1517 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1518 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1519 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1520 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1521
1522 main_mainstack = PL_mainstack;
1523 main_top_env = PL_top_env;
1524
1525 while (main_top_env->je_prev)
1526 main_top_env = main_top_env->je_prev;
1527
1528 coroapi.ver = CORO_API_VERSION;
1529 coroapi.transfer = api_transfer;
1530
1531 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1532}
1533
1534SV *
1535new (char *klass, ...)
1536 CODE:
1537{
1538 struct coro *coro;
1539 HV *hv;
1540 int i;
1541
1542 Newz (0, coro, 1, struct coro);
1543 coro->args = newAV ();
1544 coro->flags = CF_NEW;
1545
1546 if (coro_first) coro_first->prev = coro;
1547 coro->next = coro_first;
1548 coro_first = coro;
1549
1550 coro->hv = hv = newHV ();
1551 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1552 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1553
1554 av_extend (coro->args, items - 1);
1555 for (i = 1; i < items; i++)
1556 av_push (coro->args, newSVsv (ST (i)));
1557}
1558 OUTPUT:
1559 RETVAL
1560 1906
1561# these not obviously related functions are all rolled into the same xs 1907# these not obviously related functions are all rolled into the same xs
1562# function to increase chances that they all will call transfer with the same 1908# function to increase chances that they all will call transfer with the same
1563# stack offset 1909# stack offset
1564void 1910void
… …
1568 Coro::schedule = 2 1914 Coro::schedule = 2
1569 Coro::cede = 3 1915 Coro::cede = 3
1570 Coro::cede_notself = 4 1916 Coro::cede_notself = 4
1571 CODE: 1917 CODE:
1572{ 1918{
1573 struct transfer_args ta; 1919 assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel));
1574 1920
1575 switch (ix) 1921 /* we patch the op, and then re-run the whole call */
1922 /* we have to put some dummy argument on the stack for this to work */
1923 /* TODO: walk back the opcode chain (but how?), nuke the pp_gv etc. */
1924 ssl_restore.op_next = (OP *)&ssl_restore;
1925 ssl_restore.op_type = OP_NULL;
1926 ssl_restore.op_ppaddr = pp_restore;
1927 ssl_restore.op_first = PL_op;
1928
1929 ssl_arg0 = items > 0 ? SvREFCNT_inc (ST (0)) : 0;
1930 ssl_arg1 = items > 1 ? SvREFCNT_inc (ST (1)) : 0;
1931
1932 PL_op->op_ppaddr = pp_set_stacklevel;
1933 PL_op->op_private = PL_op->op_private & ~7 | ix; /* we potentially share our private flags with entersub */
1934
1935 PL_op = (OP *)&ssl_restore;
1936}
1937
1938BOOT:
1939{
1940#ifdef USE_ITHREADS
1941 MUTEX_INIT (&coro_lock);
1942# if CORO_PTHREAD
1943 coro_thx = PERL_GET_CONTEXT;
1944# endif
1945#endif
1946 BOOT_PAGESIZE;
1947
1948 ssl_cv = get_cv ("Coro::State::_set_stacklevel", 0);
1949
1950 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1951 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1952
1953 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1954 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
1955 orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr;
1956
1957 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1958 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1959 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1960
1961 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1962
1963 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1964 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1965 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1966 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1967
1968 main_mainstack = PL_mainstack;
1969 main_top_env = PL_top_env;
1970
1971 while (main_top_env->je_prev)
1972 main_top_env = main_top_env->je_prev;
1973
1974 coroapi.ver = CORO_API_VERSION;
1975 coroapi.rev = CORO_API_REVISION;
1976 coroapi.transfer = api_transfer;
1977
1576 { 1978 {
1577 case 0: 1979 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
1578 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1579 ta.next = 0;
1580 break;
1581 1980
1582 case 1: 1981 if (!svp) croak ("Time::HiRes is required");
1583 if (items != 2) 1982 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
1584 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1585 1983
1586 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 1984 nvtime = INT2PTR (double (*)(), SvIV (*svp));
1587 break;
1588
1589 case 2:
1590 prepare_schedule (aTHX_ &ta);
1591 break;
1592
1593 case 3:
1594 prepare_cede (aTHX_ &ta);
1595 break;
1596
1597 case 4:
1598 if (!prepare_cede_notself (aTHX_ &ta))
1599 XSRETURN_EMPTY;
1600
1601 break;
1602 } 1985 }
1603 1986
1604 BARRIER; 1987 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1605 TRANSFER (ta);
1606
1607 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1608 XSRETURN_YES;
1609} 1988}
1989
1990SV *
1991new (char *klass, ...)
1992 CODE:
1993{
1994 struct coro *coro;
1995 MAGIC *mg;
1996 HV *hv;
1997 int i;
1998
1999 Newz (0, coro, 1, struct coro);
2000 coro->args = newAV ();
2001 coro->flags = CF_NEW;
2002
2003 if (coro_first) coro_first->prev = coro;
2004 coro->next = coro_first;
2005 coro_first = coro;
2006
2007 coro->hv = hv = newHV ();
2008 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2009 mg->mg_flags |= MGf_DUP;
2010 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2011
2012 av_extend (coro->args, items - 1);
2013 for (i = 1; i < items; i++)
2014 av_push (coro->args, newSVsv (ST (i)));
2015}
2016 OUTPUT:
2017 RETVAL
1610 2018
1611bool 2019bool
1612_destroy (SV *coro_sv) 2020_destroy (SV *coro_sv)
1613 CODE: 2021 CODE:
1614 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2022 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1615 OUTPUT: 2023 OUTPUT:
1616 RETVAL 2024 RETVAL
1617 2025
1618void 2026void
1619_exit (code) 2027_exit (int code)
1620 int code
1621 PROTOTYPE: $ 2028 PROTOTYPE: $
1622 CODE: 2029 CODE:
1623 _exit (code); 2030 _exit (code);
1624 2031
1625int 2032int
1626cctx_stacksize (int new_stacksize = 0) 2033cctx_stacksize (int new_stacksize = 0)
1627 CODE: 2034 CODE:
1628 RETVAL = coro_stacksize; 2035 RETVAL = cctx_stacksize;
1629 if (new_stacksize) 2036 if (new_stacksize)
2037 {
1630 coro_stacksize = new_stacksize; 2038 cctx_stacksize = new_stacksize;
2039 ++cctx_gen;
2040 }
2041 OUTPUT:
2042 RETVAL
2043
2044int
2045cctx_max_idle (int max_idle = 0)
2046 CODE:
2047 RETVAL = cctx_max_idle;
2048 if (max_idle > 1)
2049 cctx_max_idle = max_idle;
1631 OUTPUT: 2050 OUTPUT:
1632 RETVAL 2051 RETVAL
1633 2052
1634int 2053int
1635cctx_count () 2054cctx_count ()
… …
1659call (Coro::State coro, SV *coderef) 2078call (Coro::State coro, SV *coderef)
1660 ALIAS: 2079 ALIAS:
1661 eval = 1 2080 eval = 1
1662 CODE: 2081 CODE:
1663{ 2082{
1664 if (coro->mainstack) 2083 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
1665 { 2084 {
1666 struct coro temp; 2085 struct coro temp;
1667 2086
1668 if (!(coro->flags & CF_RUNNING)) 2087 if (!(coro->flags & CF_RUNNING))
1669 { 2088 {
2089 PUTBACK;
1670 save_perl (aTHX_ &temp); 2090 save_perl (aTHX_ &temp);
1671 load_perl (aTHX_ coro); 2091 load_perl (aTHX_ coro);
1672 } 2092 }
1673 2093
1674 { 2094 {
1675 dSP; 2095 dSP;
1676 ENTER; 2096 ENTER;
1677 SAVETMPS; 2097 SAVETMPS;
2098 PUTBACK;
2099 PUSHSTACK;
1678 PUSHMARK (SP); 2100 PUSHMARK (SP);
1679 PUTBACK;
1680 2101
1681 if (ix) 2102 if (ix)
1682 eval_sv (coderef, 0); 2103 eval_sv (coderef, 0);
1683 else 2104 else
1684 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 2105 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1685 2106
2107 POPSTACK;
1686 SPAGAIN; 2108 SPAGAIN;
1687 FREETMPS; 2109 FREETMPS;
1688 LEAVE; 2110 LEAVE;
1689 PUTBACK; 2111 PUTBACK;
1690 } 2112 }
1691 2113
1692 if (!(coro->flags & CF_RUNNING)) 2114 if (!(coro->flags & CF_RUNNING))
1693 { 2115 {
1694 save_perl (aTHX_ coro); 2116 save_perl (aTHX_ coro);
1695 load_perl (aTHX_ &temp); 2117 load_perl (aTHX_ &temp);
2118 SPAGAIN;
1696 } 2119 }
1697 } 2120 }
1698} 2121}
1699 2122
1700SV * 2123SV *
… …
1709 RETVAL = boolSV (coro->flags & ix); 2132 RETVAL = boolSV (coro->flags & ix);
1710 OUTPUT: 2133 OUTPUT:
1711 RETVAL 2134 RETVAL
1712 2135
1713void 2136void
2137throw (Coro::State self, SV *throw = &PL_sv_undef)
2138 PROTOTYPE: $;$
2139 CODE:
2140 SvREFCNT_dec (self->throw);
2141 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
2142
2143void
1714api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2144api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1715 2145
1716SV * 2146SV *
1717has_stack (Coro::State coro) 2147has_cctx (Coro::State coro)
1718 PROTOTYPE: $ 2148 PROTOTYPE: $
1719 CODE: 2149 CODE:
1720 RETVAL = boolSV (!!coro->cctx); 2150 RETVAL = boolSV (!!coro->cctx);
1721 OUTPUT: 2151 OUTPUT:
1722 RETVAL 2152 RETVAL
… …
1727 CODE: 2157 CODE:
1728 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; 2158 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1729 OUTPUT: 2159 OUTPUT:
1730 RETVAL 2160 RETVAL
1731 2161
1732IV 2162UV
1733rss (Coro::State coro) 2163rss (Coro::State coro)
1734 PROTOTYPE: $ 2164 PROTOTYPE: $
1735 ALIAS: 2165 ALIAS:
1736 usecount = 1 2166 usecount = 1
1737 CODE: 2167 CODE:
… …
1741 case 1: RETVAL = coro->usecount; break; 2171 case 1: RETVAL = coro->usecount; break;
1742 } 2172 }
1743 OUTPUT: 2173 OUTPUT:
1744 RETVAL 2174 RETVAL
1745 2175
2176void
2177force_cctx ()
2178 CODE:
2179 struct coro *coro = SvSTATE (coro_current);
2180 coro->cctx->idle_sp = 0;
2181
2182void
2183swap_defsv (Coro::State self)
2184 PROTOTYPE: $
2185 ALIAS:
2186 swap_defav = 1
2187 CODE:
2188 if (!self->slot)
2189 croak ("cannot swap state with coroutine that has no saved state");
2190 else
2191 {
2192 SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv);
2193 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2194
2195 SV *tmp = *src; *src = *dst; *dst = tmp;
2196 }
1746 2197
1747MODULE = Coro::State PACKAGE = Coro 2198MODULE = Coro::State PACKAGE = Coro
1748 2199
1749BOOT: 2200BOOT:
1750{ 2201{
1751 int i; 2202 int i;
1752 2203
1753 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1754 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1755 av_async_pool = coro_get_av ("Coro::async_pool", TRUE); 2204 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2205 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2206 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1756 2207
1757 coro_current = coro_get_sv ("Coro::current", FALSE); 2208 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1758 SvREADONLY_on (coro_current); 2209 SvREADONLY_on (coro_current);
1759 2210
1760 coro_stash = gv_stashpv ("Coro", TRUE); 2211 coro_stash = gv_stashpv ("Coro", TRUE);
1761 2212
1762 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 2213 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
… …
1768 2219
1769 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 2220 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1770 coro_ready[i] = newAV (); 2221 coro_ready[i] = newAV ();
1771 2222
1772 { 2223 {
1773 SV *sv = perl_get_sv ("Coro::API", TRUE); 2224 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
1774 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1775 2225
1776 coroapi.schedule = api_schedule; 2226 coroapi.schedule = api_schedule;
1777 coroapi.cede = api_cede; 2227 coroapi.cede = api_cede;
1778 coroapi.cede_notself = api_cede_notself; 2228 coroapi.cede_notself = api_cede_notself;
1779 coroapi.ready = api_ready; 2229 coroapi.ready = api_ready;
… …
1790void 2240void
1791_set_current (SV *current) 2241_set_current (SV *current)
1792 PROTOTYPE: $ 2242 PROTOTYPE: $
1793 CODE: 2243 CODE:
1794 SvREFCNT_dec (SvRV (coro_current)); 2244 SvREFCNT_dec (SvRV (coro_current));
1795 SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); 2245 SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current)));
2246
2247void
2248_set_readyhook (SV *hook)
2249 PROTOTYPE: $
2250 CODE:
2251 LOCK;
2252 SvREFCNT_dec (coro_readyhook);
2253 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2254 UNLOCK;
1796 2255
1797int 2256int
1798prio (Coro::State coro, int newprio = 0) 2257prio (Coro::State coro, int newprio = 0)
1799 ALIAS: 2258 ALIAS:
1800 nice = 1 2259 nice = 1
… …
1830 CODE: 2289 CODE:
1831 RETVAL = coro_nready; 2290 RETVAL = coro_nready;
1832 OUTPUT: 2291 OUTPUT:
1833 RETVAL 2292 RETVAL
1834 2293
1835void
1836throw (Coro::State self, SV *throw = &PL_sv_undef)
1837 PROTOTYPE: $;$
1838 CODE:
1839 SvREFCNT_dec (self->throw);
1840 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1841
1842# for async_pool speedup 2294# for async_pool speedup
1843void 2295void
1844_pool_1 (SV *cb) 2296_pool_1 (SV *cb)
1845 CODE: 2297 CODE:
1846{ 2298{
1847 struct coro *coro = SvSTATE (coro_current); 2299 struct coro *coro = SvSTATE (coro_current);
1848 HV *hv = (HV *)SvRV (coro_current); 2300 HV *hv = (HV *)SvRV (coro_current);
1849 AV *defav = GvAV (PL_defgv); 2301 AV *defav = GvAV (PL_defgv);
1850 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); 2302 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1851 AV *invoke_av; 2303 AV *invoke_av;
1852 int i, len; 2304 int i, len;
1853 2305
1854 if (!invoke) 2306 if (!invoke)
2307 {
2308 SV *old = PL_diehook;
2309 PL_diehook = 0;
2310 SvREFCNT_dec (old);
1855 croak ("\3async_pool terminate\2\n"); 2311 croak ("\3async_pool terminate\2\n");
2312 }
1856 2313
1857 SvREFCNT_dec (coro->saved_deffh); 2314 SvREFCNT_dec (coro->saved_deffh);
1858 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); 2315 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
1859 2316
1860 hv_store (hv, "desc", sizeof ("desc") - 1, 2317 hv_store (hv, "desc", sizeof ("desc") - 1,
1861 newSVpvn (strpair ("[async_pool]")), 0); 2318 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1862 2319
1863 invoke_av = (AV *)SvRV (invoke); 2320 invoke_av = (AV *)SvRV (invoke);
1864 len = av_len (invoke_av); 2321 len = av_len (invoke_av);
1865 2322
1866 sv_setsv (cb, AvARRAY (invoke_av)[0]); 2323 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1867 2324
1868 if (len > 0) 2325 if (len > 0)
1869 { 2326 {
1870 av_fill (defav, len - 1); 2327 av_fill (defav, len - 1);
1871 for (i = 0; i < len; ++i) 2328 for (i = 0; i < len; ++i)
1872 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); 2329 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1]));
1873 } 2330 }
1874 2331
1875 SvREFCNT_dec (invoke); 2332 SvREFCNT_dec (invoke);
1876} 2333}
1877 2334
… …
1884 sv_setsv (cb, &PL_sv_undef); 2341 sv_setsv (cb, &PL_sv_undef);
1885 2342
1886 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2343 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1887 coro->saved_deffh = 0; 2344 coro->saved_deffh = 0;
1888 2345
1889 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) 2346 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1890 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2347 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2348 {
2349 SV *old = PL_diehook;
2350 PL_diehook = 0;
2351 SvREFCNT_dec (old);
1891 croak ("\3async_pool terminate\2\n"); 2352 croak ("\3async_pool terminate\2\n");
2353 }
1892 2354
1893 av_clear (GvAV (PL_defgv)); 2355 av_clear (GvAV (PL_defgv));
1894 hv_store ((HV *)SvRV (coro_current), strpair ("desc"), 2356 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1895 newSVpvn (strpair ("[async_pool idle]")), 0); 2357 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1896 2358
1897 coro->prio = 0; 2359 coro->prio = 0;
1898 2360
1899 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2361 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1900 api_trace (coro_current, 0); 2362 api_trace (coro_current, 0);
1901 2363
1902 av_push (av_async_pool, newSVsv (coro_current)); 2364 av_push (av_async_pool, newSVsv (coro_current));
1903} 2365}
1904 2366
2367#if 0
2368
2369void
2370_generator_call (...)
2371 PROTOTYPE: @
2372 PPCODE:
2373 fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr);
2374 xxxx
2375 abort ();
2376
2377SV *
2378gensub (SV *sub, ...)
2379 PROTOTYPE: &;@
2380 CODE:
2381{
2382 struct coro *coro;
2383 MAGIC *mg;
2384 CV *xcv;
2385 CV *ncv = (CV *)newSV_type (SVt_PVCV);
2386 int i;
2387
2388 CvGV (ncv) = CvGV (cv);
2389 CvFILE (ncv) = CvFILE (cv);
2390
2391 Newz (0, coro, 1, struct coro);
2392 coro->args = newAV ();
2393 coro->flags = CF_NEW;
2394
2395 av_extend (coro->args, items - 1);
2396 for (i = 1; i < items; i++)
2397 av_push (coro->args, newSVsv (ST (i)));
2398
2399 CvISXSUB_on (ncv);
2400 CvXSUBANY (ncv).any_ptr = (void *)coro;
2401
2402 xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV));
2403
2404 CvXSUB (ncv) = CvXSUB (xcv);
2405 CvANON_on (ncv);
2406
2407 mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0);
2408 RETVAL = newRV_noinc ((SV *)ncv);
2409}
2410 OUTPUT:
2411 RETVAL
2412
2413#endif
2414
1905 2415
1906MODULE = Coro::State PACKAGE = Coro::AIO 2416MODULE = Coro::State PACKAGE = Coro::AIO
1907 2417
1908SV * 2418void
1909_get_state () 2419_get_state (SV *self)
1910 CODE: 2420 PPCODE:
1911{ 2421{
1912 struct io_state *data; 2422 AV *defav = GvAV (PL_defgv);
1913 2423 AV *av = newAV ();
2424 int i;
1914 RETVAL = newSV (sizeof (struct io_state)); 2425 SV *data_sv = newSV (sizeof (struct io_state));
1915 data = (struct io_state *)SvPVX (RETVAL); 2426 struct io_state *data = (struct io_state *)SvPVX (data_sv);
1916 SvCUR_set (RETVAL, sizeof (struct io_state)); 2427 SvCUR_set (data_sv, sizeof (struct io_state));
1917 SvPOK_only (RETVAL); 2428 SvPOK_only (data_sv);
1918 2429
1919 data->errorno = errno; 2430 data->errorno = errno;
1920 data->laststype = PL_laststype; 2431 data->laststype = PL_laststype;
1921 data->laststatval = PL_laststatval; 2432 data->laststatval = PL_laststatval;
1922 data->statcache = PL_statcache; 2433 data->statcache = PL_statcache;
2434
2435 av_extend (av, AvFILLp (defav) + 1 + 1);
2436
2437 for (i = 0; i <= AvFILLp (defav); ++i)
2438 av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i]));
2439
2440 av_push (av, data_sv);
2441
2442 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
2443
2444 api_ready (self);
1923} 2445}
1924 OUTPUT:
1925 RETVAL
1926 2446
1927void 2447void
1928_set_state (char *data_) 2448_set_state (SV *state)
1929 PROTOTYPE: $ 2449 PROTOTYPE: $
1930 CODE: 2450 PPCODE:
1931{ 2451{
1932 struct io_state *data = (void *)data_; 2452 AV *av = (AV *)SvRV (state);
2453 struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]);
2454 int i;
1933 2455
1934 errno = data->errorno; 2456 errno = data->errorno;
1935 PL_laststype = data->laststype; 2457 PL_laststype = data->laststype;
1936 PL_laststatval = data->laststatval; 2458 PL_laststatval = data->laststatval;
1937 PL_statcache = data->statcache; 2459 PL_statcache = data->statcache;
1938}
1939 2460
2461 EXTEND (SP, AvFILLp (av));
2462 for (i = 0; i < AvFILLp (av); ++i)
2463 PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i])));
2464}
2465
2466
2467MODULE = Coro::State PACKAGE = Coro::AnyEvent
2468
2469BOOT:
2470 sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE);
2471
2472SV *
2473_schedule (...)
2474 PROTOTYPE: @
2475 CODE:
2476{
2477 static int incede;
2478
2479 api_cede_notself ();
2480
2481 ++incede;
2482 while (coro_nready >= incede && api_cede ())
2483 ;
2484
2485 sv_setsv (sv_activity, &PL_sv_undef);
2486 if (coro_nready >= incede)
2487 {
2488 PUSHMARK (SP);
2489 PUTBACK;
2490 call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL);
2491 SPAGAIN;
2492 }
2493
2494 --incede;
2495}
2496
2497
2498MODULE = Coro::State PACKAGE = PerlIO::cede
2499
2500BOOT:
2501 PerlIO_define_layer (aTHX_ &PerlIO_cede);
2502

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