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Comparing Coro/Coro/State.xs (file contents):
Revision 1.158 by root, Fri Sep 21 02:23:48 2007 UTC vs.
Revision 1.208 by root, Wed Oct 10 00:53:18 2007 UTC

1#include "libcoro/coro.c" 1#include "libcoro/coro.c"
2 2
3#define PERL_NO_GET_CONTEXT 3#define PERL_NO_GET_CONTEXT
4#define PERL_EXT
4 5
5#include "EXTERN.h" 6#include "EXTERN.h"
6#include "perl.h" 7#include "perl.h"
7#include "XSUB.h" 8#include "XSUB.h"
8 9
… …
75/* 5.8.7 */ 76/* 5.8.7 */
76#ifndef SvRV_set 77#ifndef SvRV_set
77# define SvRV_set(s,v) SvRV(s) = (v) 78# define SvRV_set(s,v) SvRV(s) = (v)
78#endif 79#endif
79 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
88
80#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 89#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81# undef CORO_STACKGUARD 90# undef CORO_STACKGUARD
82#endif 91#endif
83 92
84#ifndef CORO_STACKGUARD 93#ifndef CORO_STACKGUARD
… …
98#define IN_DESTRUCT (PL_main_cv == Nullcv) 107#define IN_DESTRUCT (PL_main_cv == Nullcv)
99 108
100#if __GNUC__ >= 3 109#if __GNUC__ >= 3
101# define attribute(x) __attribute__(x) 110# define attribute(x) __attribute__(x)
102# define BARRIER __asm__ __volatile__ ("" : : : "memory") 111# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112# define expect(expr,value) __builtin_expect ((expr),(value))
103#else 113#else
104# define attribute(x) 114# define attribute(x)
105# define BARRIER 115# define BARRIER
116# define expect(expr,value) (expr)
106#endif 117#endif
118
119#define expect_false(expr) expect ((expr) != 0, 0)
120#define expect_true(expr) expect ((expr) != 0, 1)
107 121
108#define NOINLINE attribute ((noinline)) 122#define NOINLINE attribute ((noinline))
109 123
110#include "CoroAPI.h" 124#include "CoroAPI.h"
111 125
… …
116#else 130#else
117# define LOCK (void)0 131# define LOCK (void)0
118# define UNLOCK (void)0 132# define UNLOCK (void)0
119#endif 133#endif
120 134
135#define strpair(const) const, sizeof (const) - 1
136
121/* helper storage struct for Coro::AIO */ 137/* helper storage struct for Coro::AIO */
122struct io_state 138struct io_state
123{ 139{
124 int errorno; 140 int errorno;
125 I32 laststype; 141 I32 laststype;
… …
132static AV *main_mainstack; /* used to differentiate between $main and others */ 148static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env; 149static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 150static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 151static SV *coro_mortal; /* will be freed after next transfer */
136 152
153static GV *irsgv; /* $/ */
154static GV *stdoutgv; /* *STDOUT */
155
156static HV *hv_sig; /* %SIG */
157static SV *sv_diehook;
158static SV *sv_warnhook;
159
160/* async_pool helper stuff */
161static SV *sv_pool_rss;
162static SV *sv_pool_size;
163static AV *av_async_pool;
164
137static struct coro_cctx *cctx_first; 165static struct coro_cctx *cctx_first;
138static int cctx_count, cctx_idle; 166static int cctx_count, cctx_idle;
167
168enum {
169 CC_MAPPED = 0x01,
170 CC_NOREUSE = 0x02, /* throw this away after tracing */
171 CC_TRACE = 0x04,
172 CC_TRACE_SUB = 0x08, /* trace sub calls */
173 CC_TRACE_LINE = 0x10, /* trace each statement */
174 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
175};
139 176
140/* this is a structure representing a c-level coroutine */ 177/* this is a structure representing a c-level coroutine */
141typedef struct coro_cctx { 178typedef struct coro_cctx {
142 struct coro_cctx *next; 179 struct coro_cctx *next;
143 180
… …
152 coro_context cctx; 189 coro_context cctx;
153 190
154#if CORO_USE_VALGRIND 191#if CORO_USE_VALGRIND
155 int valgrind_id; 192 int valgrind_id;
156#endif 193#endif
157 char inuse, mapped; 194 unsigned char flags;
158} coro_cctx; 195} coro_cctx;
159 196
160enum { 197enum {
161 CF_RUNNING = 0x0001, /* coroutine is running */ 198 CF_RUNNING = 0x0001, /* coroutine is running */
162 CF_READY = 0x0002, /* coroutine is ready */ 199 CF_READY = 0x0002, /* coroutine is ready */
163 CF_NEW = 0x0004, /* has never been switched to */ 200 CF_NEW = 0x0004, /* has never been switched to */
164 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 201 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
165}; 202};
166 203
204/* the structure where most of the perl state is stored, overlaid on the cxstack */
205typedef struct {
206 SV *defsv;
207 AV *defav;
208 SV *errsv;
209 SV *irsgv;
210#define VAR(name,type) type name;
211# include "state.h"
212#undef VAR
213} perl_slots;
214
215#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
216
167/* this is a structure representing a perl-level coroutine */ 217/* this is a structure representing a perl-level coroutine */
168struct coro { 218struct coro {
169 /* the c coroutine allocated to this perl coroutine, if any */ 219 /* the c coroutine allocated to this perl coroutine, if any */
170 coro_cctx *cctx; 220 coro_cctx *cctx;
171 221
222 /* process data */
223 AV *mainstack;
224 perl_slots *slot; /* basically the saved sp */
225
172 /* data associated with this coroutine (initial args) */ 226 AV *args; /* data associated with this coroutine (initial args) */
173 AV *args; 227 int refcnt; /* coroutines are refcounted, yes */
174 int refcnt;
175 int save; /* CORO_SAVE flags */
176 int flags; /* CF_ flags */ 228 int flags; /* CF_ flags */
229 HV *hv; /* the perl hash associated with this coro, if any */
177 230
178 /* optionally saved, might be zero */ 231 /* statistics */
179 AV *defav; /* @_ */ 232 int usecount; /* number of transfers to this coro */
180 SV *defsv; /* $_ */
181 SV *errsv; /* $@ */
182 GV *deffh; /* default filehandle */
183 SV *irssv; /* $/ */
184 SV *irssv_sv; /* real $/ cache */
185
186#define VAR(name,type) type name;
187# include "state.h"
188#undef VAR
189 233
190 /* coro process data */ 234 /* coro process data */
191 int prio; 235 int prio;
236 SV *throw; /* exception to be thrown */
237
238 /* async_pool */
239 SV *saved_deffh;
192 240
193 /* linked list */ 241 /* linked list */
194 struct coro *next, *prev; 242 struct coro *next, *prev;
195 HV *hv; /* the perl hash associated with this coro, if any */
196}; 243};
197 244
198typedef struct coro *Coro__State; 245typedef struct coro *Coro__State;
199typedef struct coro *Coro__State_or_hashref; 246typedef struct coro *Coro__State_or_hashref;
200 247
… …
212static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 259static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
213static int coro_nready; 260static int coro_nready;
214static struct coro *coro_first; 261static struct coro *coro_first;
215 262
216/** lowlevel stuff **********************************************************/ 263/** lowlevel stuff **********************************************************/
264
265static SV *
266coro_get_sv (const char *name, int create)
267{
268#if PERL_VERSION_ATLEAST (5,9,0)
269 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
270 get_sv (name, create);
271#endif
272 return get_sv (name, create);
273}
274
275static AV *
276coro_get_av (const char *name, int create)
277{
278#if PERL_VERSION_ATLEAST (5,9,0)
279 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
280 get_av (name, create);
281#endif
282 return get_av (name, create);
283}
284
285static HV *
286coro_get_hv (const char *name, int create)
287{
288#if PERL_VERSION_ATLEAST (5,9,0)
289 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
290 get_hv (name, create);
291#endif
292 return get_hv (name, create);
293}
217 294
218static AV * 295static AV *
219coro_clone_padlist (pTHX_ CV *cv) 296coro_clone_padlist (pTHX_ CV *cv)
220{ 297{
221 AV *padlist = CvPADLIST (cv); 298 AV *padlist = CvPADLIST (cv);
… …
285 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 362 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
286 ? SvMAGIC (cv) \ 363 ? SvMAGIC (cv) \
287 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 364 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
288 : 0 365 : 0
289 366
367static struct coro *
368SvSTATE_ (pTHX_ SV *coro)
369{
370 HV *stash;
371 MAGIC *mg;
372
373 if (SvROK (coro))
374 coro = SvRV (coro);
375
376 if (expect_false (SvTYPE (coro) != SVt_PVHV))
377 croak ("Coro::State object required");
378
379 stash = SvSTASH (coro);
380 if (expect_false (stash != coro_stash && stash != coro_state_stash))
381 {
382 /* very slow, but rare, check */
383 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
384 croak ("Coro::State object required");
385 }
386
387 mg = CORO_MAGIC (coro);
388 return (struct coro *)mg->mg_ptr;
389}
390
391#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
392
290/* the next two functions merely cache the padlists */ 393/* the next two functions merely cache the padlists */
291static void 394static void
292get_padlist (pTHX_ CV *cv) 395get_padlist (pTHX_ CV *cv)
293{ 396{
294 MAGIC *mg = CORO_MAGIC (cv); 397 MAGIC *mg = CORO_MAGIC (cv);
295 AV *av; 398 AV *av;
296 399
297 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 400 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
298 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 401 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
299 else 402 else
300 { 403 {
301#if CORO_PREFER_PERL_FUNCTIONS 404#if CORO_PREFER_PERL_FUNCTIONS
302 /* this is probably cleaner, but also slower? */ 405 /* this is probably cleaner, but also slower? */
… …
314put_padlist (pTHX_ CV *cv) 417put_padlist (pTHX_ CV *cv)
315{ 418{
316 MAGIC *mg = CORO_MAGIC (cv); 419 MAGIC *mg = CORO_MAGIC (cv);
317 AV *av; 420 AV *av;
318 421
319 if (!mg) 422 if (expect_false (!mg))
320 { 423 {
321 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 424 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
322 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 425 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
323 mg->mg_virtual = &vtbl_coro; 426 mg->mg_virtual = &vtbl_coro;
324 mg->mg_obj = (SV *)newAV (); 427 mg->mg_obj = (SV *)newAV ();
325 } 428 }
326 429
327 av = (AV *)mg->mg_obj; 430 av = (AV *)mg->mg_obj;
328 431
329 if (AvFILLp (av) >= AvMAX (av)) 432 if (expect_false (AvFILLp (av) >= AvMAX (av)))
330 av_extend (av, AvMAX (av) + 1); 433 av_extend (av, AvMAX (av) + 1);
331 434
332 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 435 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
333} 436}
334 437
335/** load & save, init *******************************************************/ 438/** load & save, init *******************************************************/
336 439
337#define SB do {
338#define SE } while (0)
339
340#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
341
342static void 440static void
343load_perl (pTHX_ Coro__State c) 441load_perl (pTHX_ Coro__State c)
344{ 442{
443 perl_slots *slot = c->slot;
444 c->slot = 0;
445
446 PL_mainstack = c->mainstack;
447
448 GvSV (PL_defgv) = slot->defsv;
449 GvAV (PL_defgv) = slot->defav;
450 GvSV (PL_errgv) = slot->errsv;
451 GvSV (irsgv) = slot->irsgv;
452
345#define VAR(name,type) PL_ ## name = c->name; 453 #define VAR(name,type) PL_ ## name = slot->name;
346# include "state.h" 454 # include "state.h"
347#undef VAR 455 #undef VAR
348 456
349 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 457 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
350 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 458 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
351 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
352 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
353
354 if (c->irssv)
355 {
356 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
357 {
358 SvREFCNT_dec (c->irssv);
359 c->irssv = 0;
360 }
361 else
362 {
363 REPLACE_SV (PL_rs, c->irssv);
364 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
365 sv_setsv (c->irssv_sv, PL_rs);
366 }
367 }
368 459
369 { 460 {
370 dSP; 461 dSP;
462
371 CV *cv; 463 CV *cv;
372 464
373 /* now do the ugly restore mess */ 465 /* now do the ugly restore mess */
374 while ((cv = (CV *)POPs)) 466 while (expect_true (cv = (CV *)POPs))
375 { 467 {
376 put_padlist (aTHX_ cv); /* mark this padlist as available */ 468 put_padlist (aTHX_ cv); /* mark this padlist as available */
377 CvDEPTH (cv) = PTR2IV (POPs); 469 CvDEPTH (cv) = PTR2IV (POPs);
378 CvPADLIST (cv) = (AV *)POPs; 470 CvPADLIST (cv) = (AV *)POPs;
379 } 471 }
… …
398 490
399 XPUSHs (Nullsv); 491 XPUSHs (Nullsv);
400 /* this loop was inspired by pp_caller */ 492 /* this loop was inspired by pp_caller */
401 for (;;) 493 for (;;)
402 { 494 {
403 while (cxix >= 0) 495 while (expect_true (cxix >= 0))
404 { 496 {
405 PERL_CONTEXT *cx = &ccstk[cxix--]; 497 PERL_CONTEXT *cx = &ccstk[cxix--];
406 498
407 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) 499 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
408 { 500 {
409 CV *cv = cx->blk_sub.cv; 501 CV *cv = cx->blk_sub.cv;
410 502
411 if (CvDEPTH (cv)) 503 if (expect_true (CvDEPTH (cv)))
412 { 504 {
413 EXTEND (SP, 3); 505 EXTEND (SP, 3);
414 PUSHs ((SV *)CvPADLIST (cv)); 506 PUSHs ((SV *)CvPADLIST (cv));
415 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 507 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
416 PUSHs ((SV *)cv); 508 PUSHs ((SV *)cv);
… …
419 get_padlist (aTHX_ cv); 511 get_padlist (aTHX_ cv);
420 } 512 }
421 } 513 }
422 } 514 }
423 515
424 if (top_si->si_type == PERLSI_MAIN) 516 if (expect_true (top_si->si_type == PERLSI_MAIN))
425 break; 517 break;
426 518
427 top_si = top_si->si_prev; 519 top_si = top_si->si_prev;
428 ccstk = top_si->si_cxstack; 520 ccstk = top_si->si_cxstack;
429 cxix = top_si->si_cxix; 521 cxix = top_si->si_cxix;
430 } 522 }
431 523
432 PUTBACK; 524 PUTBACK;
433 } 525 }
434 526
435 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 527 /* allocate some space on the context stack for our purposes */
436 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 528 /* we manually unroll here, as usually 2 slots is enough */
437 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 529 if (SLOT_COUNT >= 1) CXINC;
438 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 530 if (SLOT_COUNT >= 2) CXINC;
439 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 531 if (SLOT_COUNT >= 3) CXINC;
532 {
533 int i;
534 for (i = 3; i < SLOT_COUNT; ++i)
535 CXINC;
536 }
537 cxstack_ix -= SLOT_COUNT; /* undo allocation */
440 538
539 c->mainstack = PL_mainstack;
540
541 {
542 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
543
544 slot->defav = GvAV (PL_defgv);
545 slot->defsv = DEFSV;
546 slot->errsv = ERRSV;
547 slot->irsgv = GvSV (irsgv);
548
441#define VAR(name,type)c->name = PL_ ## name; 549 #define VAR(name,type) slot->name = PL_ ## name;
442# include "state.h" 550 # include "state.h"
443#undef VAR 551 #undef VAR
552 }
444} 553}
445 554
446/* 555/*
447 * allocate various perl stacks. This is an exact copy 556 * allocate various perl stacks. This is an exact copy
448 * of perl.c:init_stacks, except that it uses less memory 557 * of perl.c:init_stacks, except that it uses less memory
… …
453# define coro_init_stacks init_stacks 562# define coro_init_stacks init_stacks
454#else 563#else
455static void 564static void
456coro_init_stacks (pTHX) 565coro_init_stacks (pTHX)
457{ 566{
458 PL_curstackinfo = new_stackinfo(64, 6); 567 PL_curstackinfo = new_stackinfo(32, 8);
459 PL_curstackinfo->si_type = PERLSI_MAIN; 568 PL_curstackinfo->si_type = PERLSI_MAIN;
460 PL_curstack = PL_curstackinfo->si_stack; 569 PL_curstack = PL_curstackinfo->si_stack;
461 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 570 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
462 571
463 PL_stack_base = AvARRAY(PL_curstack); 572 PL_stack_base = AvARRAY(PL_curstack);
464 PL_stack_sp = PL_stack_base; 573 PL_stack_sp = PL_stack_base;
465 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 574 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
466 575
467 New(50,PL_tmps_stack,64,SV*); 576 New(50,PL_tmps_stack,32,SV*);
468 PL_tmps_floor = -1; 577 PL_tmps_floor = -1;
469 PL_tmps_ix = -1; 578 PL_tmps_ix = -1;
470 PL_tmps_max = 64; 579 PL_tmps_max = 32;
471 580
472 New(54,PL_markstack,16,I32); 581 New(54,PL_markstack,16,I32);
473 PL_markstack_ptr = PL_markstack; 582 PL_markstack_ptr = PL_markstack;
474 PL_markstack_max = PL_markstack + 16; 583 PL_markstack_max = PL_markstack + 16;
475 584
476#ifdef SET_MARK_OFFSET 585#ifdef SET_MARK_OFFSET
477 SET_MARK_OFFSET; 586 SET_MARK_OFFSET;
478#endif 587#endif
479 588
480 New(54,PL_scopestack,16,I32); 589 New(54,PL_scopestack,8,I32);
481 PL_scopestack_ix = 0; 590 PL_scopestack_ix = 0;
482 PL_scopestack_max = 16; 591 PL_scopestack_max = 8;
483 592
484 New(54,PL_savestack,64,ANY); 593 New(54,PL_savestack,24,ANY);
485 PL_savestack_ix = 0; 594 PL_savestack_ix = 0;
486 PL_savestack_max = 64; 595 PL_savestack_max = 24;
487 596
488#if !PERL_VERSION_ATLEAST (5,9,0) 597#if !PERL_VERSION_ATLEAST (5,9,0)
489 New(54,PL_retstack,4,OP*); 598 New(54,PL_retstack,4,OP*);
490 PL_retstack_ix = 0; 599 PL_retstack_ix = 0;
491 PL_retstack_max = 4; 600 PL_retstack_max = 4;
… …
497 * destroy the stacks, the callchain etc... 606 * destroy the stacks, the callchain etc...
498 */ 607 */
499static void 608static void
500coro_destroy_stacks (pTHX) 609coro_destroy_stacks (pTHX)
501{ 610{
502 if (!IN_DESTRUCT)
503 {
504 /* restore all saved variables and stuff */
505 LEAVE_SCOPE (0);
506 assert (PL_tmps_floor == -1);
507
508 /* free all temporaries */
509 FREETMPS;
510 assert (PL_tmps_ix == -1);
511
512 /* unwind all extra stacks */
513 POPSTACK_TO (PL_mainstack);
514
515 /* unwind main stack */
516 dounwind (-1);
517 }
518
519 while (PL_curstackinfo->si_next) 611 while (PL_curstackinfo->si_next)
520 PL_curstackinfo = PL_curstackinfo->si_next; 612 PL_curstackinfo = PL_curstackinfo->si_next;
521 613
522 while (PL_curstackinfo) 614 while (PL_curstackinfo)
523 { 615 {
… …
539 Safefree (PL_retstack); 631 Safefree (PL_retstack);
540#endif 632#endif
541} 633}
542 634
543static size_t 635static size_t
544coro_rss (struct coro *coro) 636coro_rss (pTHX_ struct coro *coro)
545{ 637{
546 size_t rss = sizeof (coro); 638 size_t rss = sizeof (*coro);
547 639
548 if (coro->mainstack) 640 if (coro->mainstack)
549 { 641 {
642 perl_slots tmp_slot;
643 perl_slots *slot;
644
550 if (coro->flags & CF_RUNNING) 645 if (coro->flags & CF_RUNNING)
551 { 646 {
647 slot = &tmp_slot;
648
552 #define VAR(name,type)coro->name = PL_ ## name; 649 #define VAR(name,type) slot->name = PL_ ## name;
553 # include "state.h" 650 # include "state.h"
554 #undef VAR 651 #undef VAR
555 } 652 }
653 else
654 slot = coro->slot;
556 655
557 rss += sizeof (coro->curstackinfo); 656 rss += sizeof (slot->curstackinfo);
558 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
559 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 657 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
560 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 658 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
561 rss += coro->tmps_max * sizeof (SV *); 659 rss += slot->tmps_max * sizeof (SV *);
562 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 660 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
563 rss += coro->scopestack_max * sizeof (I32); 661 rss += slot->scopestack_max * sizeof (I32);
564 rss += coro->savestack_max * sizeof (ANY); 662 rss += slot->savestack_max * sizeof (ANY);
565 663
566#if !PERL_VERSION_ATLEAST (5,9,0) 664#if !PERL_VERSION_ATLEAST (5,9,0)
567 rss += coro->retstack_max * sizeof (OP *); 665 rss += slot->retstack_max * sizeof (OP *);
568#endif 666#endif
569 } 667 }
570 668
571 return rss; 669 return rss;
572} 670}
573 671
574/** coroutine stack handling ************************************************/ 672/** coroutine stack handling ************************************************/
575 673
576static void 674static void
577setup_coro (pTHX_ struct coro *coro) 675coro_setup (pTHX_ struct coro *coro)
578{ 676{
579 /* 677 /*
580 * emulate part of the perl startup here. 678 * emulate part of the perl startup here.
581 */ 679 */
582 coro_init_stacks (aTHX); 680 coro_init_stacks (aTHX);
583 681
682 PL_runops = RUNOPS_DEFAULT;
584 PL_curcop = &PL_compiling; 683 PL_curcop = &PL_compiling;
585 PL_in_eval = EVAL_NULL; 684 PL_in_eval = EVAL_NULL;
586 PL_comppad = 0; 685 PL_comppad = 0;
587 PL_curpm = 0; 686 PL_curpm = 0;
687 PL_curpad = 0;
588 PL_localizing = 0; 688 PL_localizing = 0;
589 PL_dirty = 0; 689 PL_dirty = 0;
590 PL_restartop = 0; 690 PL_restartop = 0;
691 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
692 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
693
694 GvSV (PL_defgv) = newSV (0);
695 GvAV (PL_defgv) = coro->args; coro->args = 0;
696 GvSV (PL_errgv) = newSV (0);
697 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
698 PL_rs = newSVsv (GvSV (irsgv));
699 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
591 700
592 { 701 {
593 dSP; 702 dSP;
594 LOGOP myop; 703 LOGOP myop;
595 704
596 SvREFCNT_dec (GvAV (PL_defgv));
597 GvAV (PL_defgv) = coro->args; coro->args = 0;
598
599 Zero (&myop, 1, LOGOP); 705 Zero (&myop, 1, LOGOP);
600 myop.op_next = Nullop; 706 myop.op_next = Nullop;
601 myop.op_flags = OPf_WANT_VOID; 707 myop.op_flags = OPf_WANT_VOID;
602 708
603 PUSHMARK (SP); 709 PUSHMARK (SP);
604 XPUSHs (av_shift (GvAV (PL_defgv))); 710 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
605 PUTBACK; 711 PUTBACK;
606 PL_op = (OP *)&myop; 712 PL_op = (OP *)&myop;
607 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 713 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
608 SPAGAIN; 714 SPAGAIN;
609 } 715 }
610 716
611 ENTER; /* necessary e.g. for dounwind */ 717 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
718}
719
720static void
721coro_destroy (pTHX_ struct coro *coro)
722{
723 if (!IN_DESTRUCT)
724 {
725 /* restore all saved variables and stuff */
726 LEAVE_SCOPE (0);
727 assert (PL_tmps_floor == -1);
728
729 /* free all temporaries */
730 FREETMPS;
731 assert (PL_tmps_ix == -1);
732
733 /* unwind all extra stacks */
734 POPSTACK_TO (PL_mainstack);
735
736 /* unwind main stack */
737 dounwind (-1);
738 }
739
740 SvREFCNT_dec (GvSV (PL_defgv));
741 SvREFCNT_dec (GvAV (PL_defgv));
742 SvREFCNT_dec (GvSV (PL_errgv));
743 SvREFCNT_dec (PL_defoutgv);
744 SvREFCNT_dec (PL_rs);
745 SvREFCNT_dec (GvSV (irsgv));
746
747 SvREFCNT_dec (PL_diehook);
748 SvREFCNT_dec (PL_warnhook);
749
750 SvREFCNT_dec (coro->saved_deffh);
751 SvREFCNT_dec (coro->throw);
752
753 coro_destroy_stacks (aTHX);
612} 754}
613 755
614static void 756static void
615free_coro_mortal (pTHX) 757free_coro_mortal (pTHX)
616{ 758{
617 if (coro_mortal) 759 if (expect_true (coro_mortal))
618 { 760 {
619 SvREFCNT_dec (coro_mortal); 761 SvREFCNT_dec (coro_mortal);
620 coro_mortal = 0; 762 coro_mortal = 0;
621 } 763 }
764}
765
766static int
767runops_trace (pTHX)
768{
769 COP *oldcop = 0;
770 int oldcxix = -2;
771 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
772 coro_cctx *cctx = coro->cctx;
773
774 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
775 {
776 PERL_ASYNC_CHECK ();
777
778 if (cctx->flags & CC_TRACE_ALL)
779 {
780 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
781 {
782 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
783 SV **bot, **top;
784 AV *av = newAV (); /* return values */
785 SV **cb;
786 dSP;
787
788 GV *gv = CvGV (cx->blk_sub.cv);
789 SV *fullname = sv_2mortal (newSV (0));
790 if (isGV (gv))
791 gv_efullname3 (fullname, gv, 0);
792
793 bot = PL_stack_base + cx->blk_oldsp + 1;
794 top = cx->blk_gimme == G_ARRAY ? SP + 1
795 : cx->blk_gimme == G_SCALAR ? bot + 1
796 : bot;
797
798 av_extend (av, top - bot);
799 while (bot < top)
800 av_push (av, SvREFCNT_inc (*bot++));
801
802 PL_runops = RUNOPS_DEFAULT;
803 ENTER;
804 SAVETMPS;
805 EXTEND (SP, 3);
806 PUSHMARK (SP);
807 PUSHs (&PL_sv_no);
808 PUSHs (fullname);
809 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
810 PUTBACK;
811 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
812 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
813 SPAGAIN;
814 FREETMPS;
815 LEAVE;
816 PL_runops = runops_trace;
817 }
818
819 if (oldcop != PL_curcop)
820 {
821 oldcop = PL_curcop;
822
823 if (PL_curcop != &PL_compiling)
824 {
825 SV **cb;
826
827 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
828 {
829 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
830
831 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
832 {
833 runops_proc_t old_runops = PL_runops;
834 dSP;
835 GV *gv = CvGV (cx->blk_sub.cv);
836 SV *fullname = sv_2mortal (newSV (0));
837
838 if (isGV (gv))
839 gv_efullname3 (fullname, gv, 0);
840
841 PL_runops = RUNOPS_DEFAULT;
842 ENTER;
843 SAVETMPS;
844 EXTEND (SP, 3);
845 PUSHMARK (SP);
846 PUSHs (&PL_sv_yes);
847 PUSHs (fullname);
848 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
849 PUTBACK;
850 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
851 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
852 SPAGAIN;
853 FREETMPS;
854 LEAVE;
855 PL_runops = runops_trace;
856 }
857
858 oldcxix = cxstack_ix;
859 }
860
861 if (cctx->flags & CC_TRACE_LINE)
862 {
863 dSP;
864
865 PL_runops = RUNOPS_DEFAULT;
866 ENTER;
867 SAVETMPS;
868 EXTEND (SP, 3);
869 PL_runops = RUNOPS_DEFAULT;
870 PUSHMARK (SP);
871 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
872 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
873 PUTBACK;
874 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
875 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
876 SPAGAIN;
877 FREETMPS;
878 LEAVE;
879 PL_runops = runops_trace;
880 }
881 }
882 }
883 }
884 }
885
886 TAINT_NOT;
887 return 0;
622} 888}
623 889
624/* inject a fake call to Coro::State::_cctx_init into the execution */ 890/* inject a fake call to Coro::State::_cctx_init into the execution */
625/* _cctx_init should be careful, as it could be called at almost any time */ 891/* _cctx_init should be careful, as it could be called at almost any time */
626/* during execution of a perl program */ 892/* during execution of a perl program */
627static void NOINLINE 893static void NOINLINE
628prepare_cctx (pTHX_ coro_cctx *cctx) 894cctx_prepare (pTHX_ coro_cctx *cctx)
629{ 895{
630 dSP; 896 dSP;
631 LOGOP myop; 897 LOGOP myop;
898
899 PL_top_env = &PL_start_env;
900
901 if (cctx->flags & CC_TRACE)
902 PL_runops = runops_trace;
632 903
633 Zero (&myop, 1, LOGOP); 904 Zero (&myop, 1, LOGOP);
634 myop.op_next = PL_op; 905 myop.op_next = PL_op;
635 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 906 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
636 907
… …
646 917
647/* 918/*
648 * this is a _very_ stripped down perl interpreter ;) 919 * this is a _very_ stripped down perl interpreter ;)
649 */ 920 */
650static void 921static void
651coro_run (void *arg) 922cctx_run (void *arg)
652{ 923{
653 dTHX; 924 dTHX;
654 925
655 /* coro_run is the alternative tail of transfer(), so unlock here. */ 926 /* cctx_run is the alternative tail of transfer(), so unlock here. */
656 UNLOCK; 927 UNLOCK;
657 928
658 PL_top_env = &PL_start_env; 929 /* we now skip the entersub that lead to transfer() */
930 PL_op = PL_op->op_next;
659 931
660 /* inject a fake subroutine call to cctx_init */ 932 /* inject a fake subroutine call to cctx_init */
661 prepare_cctx (aTHX_ (coro_cctx *)arg); 933 cctx_prepare (aTHX_ (coro_cctx *)arg);
662 934
663 /* somebody or something will hit me for both perl_run and PL_restartop */ 935 /* somebody or something will hit me for both perl_run and PL_restartop */
664 PL_restartop = PL_op; 936 PL_restartop = PL_op;
665 perl_run (PL_curinterp); 937 perl_run (PL_curinterp);
666 938
… …
685 ++cctx_count; 957 ++cctx_count;
686 958
687 Newz (0, cctx, 1, coro_cctx); 959 Newz (0, cctx, 1, coro_cctx);
688 960
689#if HAVE_MMAP 961#if HAVE_MMAP
690
691 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 962 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
692 /* mmap supposedly does allocate-on-write for us */ 963 /* mmap supposedly does allocate-on-write for us */
693 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 964 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
694 965
695 if (cctx->sptr != (void *)-1) 966 if (cctx->sptr != (void *)-1)
… …
697# if CORO_STACKGUARD 968# if CORO_STACKGUARD
698 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 969 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
699# endif 970# endif
700 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 971 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
701 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 972 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
702 cctx->mapped = 1; 973 cctx->flags |= CC_MAPPED;
703 } 974 }
704 else 975 else
705#endif 976#endif
706 { 977 {
707 cctx->ssize = coro_stacksize * (long)sizeof (long); 978 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
716 stack_start = cctx->sptr; 987 stack_start = cctx->sptr;
717 stack_size = cctx->ssize; 988 stack_size = cctx->ssize;
718 } 989 }
719 990
720 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 991 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
721 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 992 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
722 993
723 return cctx; 994 return cctx;
724} 995}
725 996
726static void 997static void
… …
734#if CORO_USE_VALGRIND 1005#if CORO_USE_VALGRIND
735 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1006 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
736#endif 1007#endif
737 1008
738#if HAVE_MMAP 1009#if HAVE_MMAP
739 if (cctx->mapped) 1010 if (cctx->flags & CC_MAPPED)
740 munmap (cctx->sptr, cctx->ssize); 1011 munmap (cctx->sptr, cctx->ssize);
741 else 1012 else
742#endif 1013#endif
743 Safefree (cctx->sptr); 1014 Safefree (cctx->sptr);
744 1015
745 Safefree (cctx); 1016 Safefree (cctx);
746} 1017}
747 1018
1019/* wether this cctx should be destructed */
1020#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1021
748static coro_cctx * 1022static coro_cctx *
749cctx_get (pTHX) 1023cctx_get (pTHX)
750{ 1024{
751 while (cctx_first) 1025 while (expect_true (cctx_first))
752 { 1026 {
753 coro_cctx *cctx = cctx_first; 1027 coro_cctx *cctx = cctx_first;
754 cctx_first = cctx->next; 1028 cctx_first = cctx->next;
755 --cctx_idle; 1029 --cctx_idle;
756 1030
757 if (cctx->ssize >= coro_stacksize) 1031 if (expect_true (!CCTX_EXPIRED (cctx)))
758 return cctx; 1032 return cctx;
759 1033
760 cctx_destroy (cctx); 1034 cctx_destroy (cctx);
761 } 1035 }
762 1036
763 PL_op = PL_op->op_next;
764 return cctx_new (); 1037 return cctx_new ();
765} 1038}
766 1039
767static void 1040static void
768cctx_put (coro_cctx *cctx) 1041cctx_put (coro_cctx *cctx)
769{ 1042{
770 /* free another cctx if overlimit */ 1043 /* free another cctx if overlimit */
771 if (cctx_idle >= MAX_IDLE_CCTX) 1044 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
772 { 1045 {
773 coro_cctx *first = cctx_first; 1046 coro_cctx *first = cctx_first;
774 cctx_first = first->next; 1047 cctx_first = first->next;
775 --cctx_idle; 1048 --cctx_idle;
776 1049
777 assert (!first->inuse);
778 cctx_destroy (first); 1050 cctx_destroy (first);
779 } 1051 }
780 1052
781 ++cctx_idle; 1053 ++cctx_idle;
782 cctx->next = cctx_first; 1054 cctx->next = cctx_first;
783 cctx_first = cctx; 1055 cctx_first = cctx;
784} 1056}
785 1057
786/** coroutine switching *****************************************************/ 1058/** coroutine switching *****************************************************/
787 1059
788/* never call directly, always through the coro_state_transfer global variable */ 1060static void
1061transfer_check (pTHX_ struct coro *prev, struct coro *next)
1062{
1063 if (expect_true (prev != next))
1064 {
1065 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1066 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
1067
1068 if (expect_false (next->flags & CF_RUNNING))
1069 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1070
1071 if (expect_false (next->flags & CF_DESTROYED))
1072 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1073
1074 if (
1075#if PERL_VERSION_ATLEAST (5,9,0)
1076 expect_false (PL_parser)
1077#else
1078 expect_false (PL_lex_state != LEX_NOTPARSING)
1079#endif
1080 )
1081 croak ("Coro::State::transfer called while parsing, but this is not supported");
1082 }
1083}
1084
1085/* always use the TRANSFER macro */
789static void NOINLINE 1086static void NOINLINE
790transfer (pTHX_ struct coro *prev, struct coro *next) 1087transfer (pTHX_ struct coro *prev, struct coro *next)
791{ 1088{
792 dSTACKLEVEL; 1089 dSTACKLEVEL;
793 1090
794 /* sometimes transfer is only called to set idle_sp */ 1091 /* sometimes transfer is only called to set idle_sp */
795 if (!next) 1092 if (expect_false (!next))
796 { 1093 {
797 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1094 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
798 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1095 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
799 } 1096 }
800 else if (prev != next) 1097 else if (expect_true (prev != next))
801 { 1098 {
802 coro_cctx *prev__cctx; 1099 coro_cctx *prev__cctx;
803 1100
804 if (prev->flags & CF_NEW) 1101 if (expect_false (prev->flags & CF_NEW))
805 { 1102 {
806 /* create a new empty context */ 1103 /* create a new empty context */
807 Newz (0, prev->cctx, 1, coro_cctx); 1104 Newz (0, prev->cctx, 1, coro_cctx);
808 prev->cctx->inuse = 1;
809 prev->flags &= ~CF_NEW; 1105 prev->flags &= ~CF_NEW;
810 prev->flags |= CF_RUNNING; 1106 prev->flags |= CF_RUNNING;
811 } 1107 }
812 1108
813 /*TODO: must not croak here */
814 if (!prev->flags & CF_RUNNING)
815 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
816
817 if (next->flags & CF_RUNNING)
818 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
819
820 if (next->flags & CF_DESTROYED)
821 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
822
823 prev->flags &= ~CF_RUNNING; 1109 prev->flags &= ~CF_RUNNING;
824 next->flags |= CF_RUNNING; 1110 next->flags |= CF_RUNNING;
825 1111
826 LOCK; 1112 LOCK;
827 1113
828 if (next->flags & CF_NEW) 1114 if (expect_false (next->flags & CF_NEW))
829 { 1115 {
830 /* need to start coroutine */ 1116 /* need to start coroutine */
831 next->flags &= ~CF_NEW; 1117 next->flags &= ~CF_NEW;
832 /* first get rid of the old state */ 1118 /* first get rid of the old state */
833 save_perl (aTHX_ prev); 1119 save_perl (aTHX_ prev);
834 /* setup coroutine call */ 1120 /* setup coroutine call */
835 setup_coro (aTHX_ next); 1121 coro_setup (aTHX_ next);
836 /* need a new stack */
837 assert (!next->cctx);
838 } 1122 }
839 else 1123 else
840 { 1124 {
841 /* coroutine already started */ 1125 /* coroutine already started */
842 save_perl (aTHX_ prev); 1126 save_perl (aTHX_ prev);
… …
844 } 1128 }
845 1129
846 prev__cctx = prev->cctx; 1130 prev__cctx = prev->cctx;
847 1131
848 /* possibly "free" the cctx */ 1132 /* possibly "free" the cctx */
849 if (prev__cctx->idle_sp == STACKLEVEL) 1133 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
850 { 1134 {
851 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1135 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
852 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1136 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
853 1137
854 prev->cctx = 0; 1138 prev->cctx = 0;
855 1139
1140 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1141 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1142 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1143 if (!next->cctx)
1144 next->cctx = cctx_get (aTHX);
1145
856 cctx_put (prev__cctx); 1146 cctx_put (prev__cctx);
857 prev__cctx->inuse = 0;
858 } 1147 }
859 1148
1149 ++next->usecount;
1150
860 if (!next->cctx) 1151 if (expect_true (!next->cctx))
861 {
862 next->cctx = cctx_get (aTHX); 1152 next->cctx = cctx_get (aTHX);
863 assert (!next->cctx->inuse);
864 next->cctx->inuse = 1;
865 }
866 1153
867 if (prev__cctx != next->cctx) 1154 if (expect_false (prev__cctx != next->cctx))
868 { 1155 {
869 prev__cctx->top_env = PL_top_env; 1156 prev__cctx->top_env = PL_top_env;
870 PL_top_env = next->cctx->top_env; 1157 PL_top_env = next->cctx->top_env;
871 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1158 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
872 } 1159 }
873 1160
874 free_coro_mortal (aTHX); 1161 free_coro_mortal (aTHX);
875 UNLOCK; 1162 UNLOCK;
1163
1164 if (expect_false (prev->throw || next->throw))
1165 {
1166 struct coro *coro = SvSTATE (coro_current);
1167
1168 if (coro->throw)
1169 {
1170 SV *exception = coro->throw;
1171 coro->throw = 0;
1172 sv_setsv (ERRSV, exception);
1173 croak (0);
1174 }
1175 }
876 } 1176 }
877} 1177}
878 1178
879struct transfer_args 1179struct transfer_args
880{ 1180{
881 struct coro *prev, *next; 1181 struct coro *prev, *next;
882}; 1182};
883 1183
884#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1184#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1185#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
885 1186
886/** high level stuff ********************************************************/ 1187/** high level stuff ********************************************************/
887 1188
888static int 1189static int
889coro_state_destroy (pTHX_ struct coro *coro) 1190coro_state_destroy (pTHX_ struct coro *coro)
… …
906 1207
907 if (coro->mainstack && coro->mainstack != main_mainstack) 1208 if (coro->mainstack && coro->mainstack != main_mainstack)
908 { 1209 {
909 struct coro temp; 1210 struct coro temp;
910 1211
911 assert (!(coro->flags & CF_RUNNING));
912
913 Zero (&temp, 1, struct coro);
914 temp.save = CORO_SAVE_ALL;
915
916 if (coro->flags & CF_RUNNING) 1212 if (coro->flags & CF_RUNNING)
917 croak ("FATAL: tried to destroy currently running coroutine"); 1213 croak ("FATAL: tried to destroy currently running coroutine");
918 1214
919 save_perl (aTHX_ &temp); 1215 save_perl (aTHX_ &temp);
920 load_perl (aTHX_ coro); 1216 load_perl (aTHX_ coro);
921 1217
922 coro_destroy_stacks (aTHX); 1218 coro_destroy (aTHX_ coro);
923 1219
924 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1220 load_perl (aTHX_ &temp);
925 1221
926 coro->mainstack = 0; 1222 coro->slot = 0;
927 } 1223 }
928 1224
929 cctx_destroy (coro->cctx); 1225 cctx_destroy (coro->cctx);
930 SvREFCNT_dec (coro->args); 1226 SvREFCNT_dec (coro->args);
931 1227
… …
972#else 1268#else
973# define MGf_DUP 0 1269# define MGf_DUP 0
974#endif 1270#endif
975}; 1271};
976 1272
977static struct coro *
978SvSTATE_ (pTHX_ SV *coro)
979{
980 HV *stash;
981 MAGIC *mg;
982
983 if (SvROK (coro))
984 coro = SvRV (coro);
985
986 stash = SvSTASH (coro);
987 if (stash != coro_stash && stash != coro_state_stash)
988 {
989 /* very slow, but rare, check */
990 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
991 croak ("Coro::State object required");
992 }
993
994 mg = CORO_MAGIC (coro);
995 return (struct coro *)mg->mg_ptr;
996}
997
998#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
999
1000static void 1273static void
1001prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1274prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1002{ 1275{
1003 ta->prev = SvSTATE (prev_sv); 1276 ta->prev = SvSTATE (prev_sv);
1004 ta->next = SvSTATE (next_sv); 1277 ta->next = SvSTATE (next_sv);
1278 TRANSFER_CHECK (*ta);
1005} 1279}
1006 1280
1007static void 1281static void
1008api_transfer (SV *prev_sv, SV *next_sv) 1282api_transfer (SV *prev_sv, SV *next_sv)
1009{ 1283{
1010 dTHX; 1284 dTHX;
1011 struct transfer_args ta; 1285 struct transfer_args ta;
1012 1286
1013 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1287 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1014 TRANSFER (ta); 1288 TRANSFER (ta);
1015}
1016
1017static int
1018api_save (SV *coro_sv, int new_save)
1019{
1020 dTHX;
1021 struct coro *coro = SvSTATE (coro_sv);
1022 int old_save = coro->save;
1023
1024 if (new_save >= 0)
1025 coro->save = new_save;
1026
1027 return old_save;
1028} 1289}
1029 1290
1030/** Coro ********************************************************************/ 1291/** Coro ********************************************************************/
1031 1292
1032static void 1293static void
… …
1091 { 1352 {
1092 LOCK; 1353 LOCK;
1093 next_sv = coro_deq (aTHX_ PRIO_MIN); 1354 next_sv = coro_deq (aTHX_ PRIO_MIN);
1094 1355
1095 /* nothing to schedule: call the idle handler */ 1356 /* nothing to schedule: call the idle handler */
1096 if (!next_sv) 1357 if (expect_false (!next_sv))
1097 { 1358 {
1098 dSP; 1359 dSP;
1099 UNLOCK; 1360 UNLOCK;
1100 1361
1101 ENTER; 1362 ENTER;
… …
1111 } 1372 }
1112 1373
1113 ta->next = SvSTATE (next_sv); 1374 ta->next = SvSTATE (next_sv);
1114 1375
1115 /* cannot transfer to destroyed coros, skip and look for next */ 1376 /* cannot transfer to destroyed coros, skip and look for next */
1116 if (ta->next->flags & CF_DESTROYED) 1377 if (expect_false (ta->next->flags & CF_DESTROYED))
1117 { 1378 {
1118 UNLOCK; 1379 UNLOCK;
1119 SvREFCNT_dec (next_sv); 1380 SvREFCNT_dec (next_sv);
1120 /* coro_nready is already taken care of by destroy */ 1381 /* coro_nready is already taken care of by destroy */
1121 continue; 1382 continue;
… …
1126 break; 1387 break;
1127 } 1388 }
1128 1389
1129 /* free this only after the transfer */ 1390 /* free this only after the transfer */
1130 prev_sv = SvRV (coro_current); 1391 prev_sv = SvRV (coro_current);
1131 SvRV_set (coro_current, next_sv);
1132 ta->prev = SvSTATE (prev_sv); 1392 ta->prev = SvSTATE (prev_sv);
1133 1393 TRANSFER_CHECK (*ta);
1134 assert (ta->next->flags & CF_READY); 1394 assert (ta->next->flags & CF_READY);
1135 ta->next->flags &= ~CF_READY; 1395 ta->next->flags &= ~CF_READY;
1396 SvRV_set (coro_current, next_sv);
1136 1397
1137 LOCK; 1398 LOCK;
1138 free_coro_mortal (aTHX); 1399 free_coro_mortal (aTHX);
1139 coro_mortal = prev_sv; 1400 coro_mortal = prev_sv;
1140 UNLOCK; 1401 UNLOCK;
… …
1177 dTHX; 1438 dTHX;
1178 struct transfer_args ta; 1439 struct transfer_args ta;
1179 1440
1180 prepare_cede (aTHX_ &ta); 1441 prepare_cede (aTHX_ &ta);
1181 1442
1182 if (ta.prev != ta.next) 1443 if (expect_true (ta.prev != ta.next))
1183 { 1444 {
1184 TRANSFER (ta); 1445 TRANSFER (ta);
1185 return 1; 1446 return 1;
1186 } 1447 }
1187 else 1448 else
… …
1201 } 1462 }
1202 else 1463 else
1203 return 0; 1464 return 0;
1204} 1465}
1205 1466
1467static void
1468api_trace (SV *coro_sv, int flags)
1469{
1470 dTHX;
1471 struct coro *coro = SvSTATE (coro_sv);
1472
1473 if (flags & CC_TRACE)
1474 {
1475 if (!coro->cctx)
1476 coro->cctx = cctx_new ();
1477 else if (!(coro->cctx->flags & CC_TRACE))
1478 croak ("cannot enable tracing on coroutine with custom stack");
1479
1480 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1481 }
1482 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1483 {
1484 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1485
1486 if (coro->flags & CF_RUNNING)
1487 PL_runops = RUNOPS_DEFAULT;
1488 else
1489 coro->slot->runops = RUNOPS_DEFAULT;
1490 }
1491}
1492
1206MODULE = Coro::State PACKAGE = Coro::State 1493MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1207 1494
1208PROTOTYPES: DISABLE 1495PROTOTYPES: DISABLE
1209 1496
1210BOOT: 1497BOOT:
1211{ 1498{
1212#ifdef USE_ITHREADS 1499#ifdef USE_ITHREADS
1213 MUTEX_INIT (&coro_mutex); 1500 MUTEX_INIT (&coro_mutex);
1214#endif 1501#endif
1215 BOOT_PAGESIZE; 1502 BOOT_PAGESIZE;
1216 1503
1504 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1505 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1506
1507 hv_sig = coro_get_hv ("SIG", TRUE);
1508 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1509 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1510
1511 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1512 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1513
1217 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1514 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1218 1515
1219 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1516 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1220 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1517 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1221 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1222 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1223 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1224 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1518 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1225 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1519 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1226 1520
1227 main_mainstack = PL_mainstack; 1521 main_mainstack = PL_mainstack;
1228 main_top_env = PL_top_env; 1522 main_top_env = PL_top_env;
1229 1523
1230 while (main_top_env->je_prev) 1524 while (main_top_env->je_prev)
… …
1243 struct coro *coro; 1537 struct coro *coro;
1244 HV *hv; 1538 HV *hv;
1245 int i; 1539 int i;
1246 1540
1247 Newz (0, coro, 1, struct coro); 1541 Newz (0, coro, 1, struct coro);
1248 coro->args = newAV (); 1542 coro->args = newAV ();
1249 coro->save = CORO_SAVE_DEF;
1250 coro->flags = CF_NEW; 1543 coro->flags = CF_NEW;
1251 1544
1252 if (coro_first) coro_first->prev = coro; 1545 if (coro_first) coro_first->prev = coro;
1253 coro->next = coro_first; 1546 coro->next = coro_first;
1254 coro_first = coro; 1547 coro_first = coro;
1255 1548
1256 coro->hv = hv = newHV (); 1549 coro->hv = hv = newHV ();
1257 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1550 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1258 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1551 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1259 1552
1553 av_extend (coro->args, items - 1);
1260 for (i = 1; i < items; i++) 1554 for (i = 1; i < items; i++)
1261 av_push (coro->args, newSVsv (ST (i))); 1555 av_push (coro->args, newSVsv (ST (i)));
1262} 1556}
1263 OUTPUT: 1557 OUTPUT:
1264 RETVAL 1558 RETVAL
1265 1559
1266int 1560# these not obviously related functions are all rolled into the same xs
1267save (SV *coro, int new_save = -1) 1561# function to increase chances that they all will call transfer with the same
1268 CODE: 1562# stack offset
1269 RETVAL = api_save (coro, new_save);
1270 OUTPUT:
1271 RETVAL
1272
1273int
1274save_also (SV *coro_sv, int save_also)
1275 CODE:
1276{
1277 struct coro *coro = SvSTATE (coro_sv);
1278 RETVAL = coro->save;
1279 coro->save |= save_also;
1280}
1281 OUTPUT:
1282 RETVAL
1283
1284void 1563void
1285_set_stacklevel (...) 1564_set_stacklevel (...)
1286 ALIAS: 1565 ALIAS:
1287 Coro::State::transfer = 1 1566 Coro::State::transfer = 1
1288 Coro::schedule = 2 1567 Coro::schedule = 2
1289 Coro::cede = 3 1568 Coro::cede = 3
1290 Coro::cede_notself = 4 1569 Coro::cede_notself = 4
1570 Coro::Event::next = 5
1571 Coro::Event::next_cancel = 6
1291 CODE: 1572 PPCODE:
1292{ 1573{
1293 struct transfer_args ta; 1574 struct transfer_args ta;
1575 int again = 0;
1294 1576
1295 switch (ix) 1577 do
1296 { 1578 {
1579 switch (ix)
1580 {
1297 case 0: 1581 case 0:
1298 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); 1582 ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0)));
1299 ta.next = 0; 1583 ta.next = 0;
1300 break; 1584 break;
1301 1585
1302 case 1: 1586 case 1:
1303 if (items != 2) 1587 if (items != 2)
1304 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); 1588 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1305 1589
1306 prepare_transfer (aTHX_ &ta, ST (0), ST (1)); 1590 prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1307 break; 1591 break;
1308 1592
1309 case 2: 1593 case 2:
1310 prepare_schedule (aTHX_ &ta); 1594 prepare_schedule (aTHX_ &ta);
1311 break; 1595 break;
1312 1596
1313 case 3: 1597 case 3:
1314 prepare_cede (aTHX_ &ta); 1598 prepare_cede (aTHX_ &ta);
1315 break; 1599 break;
1316 1600
1317 case 4: 1601 case 4:
1318 if (!prepare_cede_notself (aTHX_ &ta)) 1602 if (!prepare_cede_notself (aTHX_ &ta))
1319 XSRETURN_EMPTY; 1603 XSRETURN_EMPTY;
1320 1604
1321 break; 1605 break;
1606
1607 case 5:
1608 case 6:
1609 if (items != 1)
1610 croak ("Coro::Event::next (watcher) expects one argument, not %d", items);
1611
1612 {
1613 SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID);
1614
1615 if (ev)
1616 {
1617 if (GIMME_V != G_VOID)
1618 {
1619 XPUSHs (ev);
1620 XSRETURN (1);
1621 }
1622 else
1623 XSRETURN_EMPTY;
1624 }
1625 }
1626
1627 prepare_schedule (aTHX_ &ta);
1628 again = 1;
1629 break;
1630 }
1631
1632 BARRIER;
1633 TRANSFER (ta);
1634 BARRIER;
1322 } 1635 }
1636 while (again);
1323 1637
1324 BARRIER;
1325 TRANSFER (ta);
1326
1327 if (GIMME_V != G_VOID && ta.next != ta.prev) 1638 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1328 XSRETURN_YES; 1639 XSRETURN_YES;
1329} 1640
1641 XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */
1330 1642
1331bool 1643bool
1332_destroy (SV *coro_sv) 1644_destroy (SV *coro_sv)
1333 CODE: 1645 CODE:
1334 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 1646 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
1374 if (coro->hv) 1686 if (coro->hv)
1375 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 1687 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1376} 1688}
1377 1689
1378void 1690void
1379_eval (Coro::State coro, SV *coderef) 1691call (Coro::State coro, SV *coderef)
1692 ALIAS:
1693 eval = 1
1380 CODE: 1694 CODE:
1381{ 1695{
1382 if (coro->mainstack) 1696 if (coro->mainstack)
1383 { 1697 {
1384 struct coro temp; 1698 struct coro temp;
1385 Zero (&temp, 1, struct coro);
1386 temp.save = CORO_SAVE_ALL;
1387 1699
1388 if (!(coro->flags & CF_RUNNING)) 1700 if (!(coro->flags & CF_RUNNING))
1389 { 1701 {
1390 save_perl (aTHX_ &temp); 1702 save_perl (aTHX_ &temp);
1391 load_perl (aTHX_ coro); 1703 load_perl (aTHX_ coro);
… …
1393 1705
1394 { 1706 {
1395 dSP; 1707 dSP;
1396 ENTER; 1708 ENTER;
1397 SAVETMPS; 1709 SAVETMPS;
1710 PUTBACK;
1711 PUSHSTACK;
1398 PUSHMARK (SP); 1712 PUSHMARK (SP);
1399 PUTBACK; 1713
1714 if (ix)
1715 eval_sv (coderef, 0);
1716 else
1400 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1717 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1718
1401 SPAGAIN; 1719 POPSTACK;
1402 FREETMPS; 1720 FREETMPS;
1403 LEAVE; 1721 LEAVE;
1404 PUTBACK;
1405 } 1722 }
1406 1723
1407 if (!(coro->flags & CF_RUNNING)) 1724 if (!(coro->flags & CF_RUNNING))
1408 { 1725 {
1409 save_perl (aTHX_ coro); 1726 save_perl (aTHX_ coro);
1410 load_perl (aTHX_ &temp); 1727 load_perl (aTHX_ &temp);
1411 } 1728 }
1412 } 1729 }
1413} 1730}
1414 1731
1415SV * 1732SV *
1416is_ready (Coro::State coro) 1733is_ready (Coro::State coro)
1417 PROTOTYPE: $ 1734 PROTOTYPE: $
1418 ALIAS: 1735 ALIAS:
1419 is_ready = CF_READY 1736 is_ready = CF_READY
… …
1423 CODE: 1740 CODE:
1424 RETVAL = boolSV (coro->flags & ix); 1741 RETVAL = boolSV (coro->flags & ix);
1425 OUTPUT: 1742 OUTPUT:
1426 RETVAL 1743 RETVAL
1427 1744
1745void
1746api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1747
1748SV *
1749has_stack (Coro::State coro)
1750 PROTOTYPE: $
1751 CODE:
1752 RETVAL = boolSV (!!coro->cctx);
1753 OUTPUT:
1754 RETVAL
1755
1756int
1757is_traced (Coro::State coro)
1758 PROTOTYPE: $
1759 CODE:
1760 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1761 OUTPUT:
1762 RETVAL
1763
1428IV 1764IV
1429rss (Coro::State coro) 1765rss (Coro::State coro)
1430 PROTOTYPE: $ 1766 PROTOTYPE: $
1767 ALIAS:
1768 usecount = 1
1431 CODE: 1769 CODE:
1432 RETVAL = coro_rss (coro); 1770 switch (ix)
1771 {
1772 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1773 case 1: RETVAL = coro->usecount; break;
1774 }
1433 OUTPUT: 1775 OUTPUT:
1434 RETVAL 1776 RETVAL
1435 1777
1436 1778
1437MODULE = Coro::State PACKAGE = Coro 1779MODULE = Coro::State PACKAGE = Coro
1438 1780
1439BOOT: 1781BOOT:
1440{ 1782{
1441 int i; 1783 int i;
1442 1784
1785 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1786 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1787 av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1788
1789 coro_current = coro_get_sv ("Coro::current", FALSE);
1790 SvREADONLY_on (coro_current);
1791
1443 coro_stash = gv_stashpv ("Coro", TRUE); 1792 coro_stash = gv_stashpv ("Coro", TRUE);
1444 1793
1445 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1794 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1446 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1795 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1447 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1796 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1448 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1797 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1449 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1798 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1450 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1799 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1451 1800
1452 coro_current = get_sv ("Coro::current", FALSE);
1453 SvREADONLY_on (coro_current);
1454
1455 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1801 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1456 coro_ready[i] = newAV (); 1802 coro_ready[i] = newAV ();
1457 1803
1458 { 1804 {
1459 SV *sv = perl_get_sv("Coro::API", 1); 1805 SV *sv = perl_get_sv ("Coro::API", TRUE);
1806 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1460 1807
1461 coroapi.schedule = api_schedule; 1808 coroapi.schedule = api_schedule;
1462 coroapi.save = api_save;
1463 coroapi.cede = api_cede; 1809 coroapi.cede = api_cede;
1464 coroapi.cede_notself = api_cede_notself; 1810 coroapi.cede_notself = api_cede_notself;
1465 coroapi.ready = api_ready; 1811 coroapi.ready = api_ready;
1466 coroapi.is_ready = api_is_ready; 1812 coroapi.is_ready = api_is_ready;
1467 coroapi.nready = &coro_nready; 1813 coroapi.nready = &coro_nready;
… …
1516 CODE: 1862 CODE:
1517 RETVAL = coro_nready; 1863 RETVAL = coro_nready;
1518 OUTPUT: 1864 OUTPUT:
1519 RETVAL 1865 RETVAL
1520 1866
1867void
1868throw (Coro::State self, SV *throw = &PL_sv_undef)
1869 PROTOTYPE: $;$
1870 CODE:
1871 SvREFCNT_dec (self->throw);
1872 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1873
1874# for async_pool speedup
1875void
1876_pool_1 (SV *cb)
1877 CODE:
1878{
1879 struct coro *coro = SvSTATE (coro_current);
1880 HV *hv = (HV *)SvRV (coro_current);
1881 AV *defav = GvAV (PL_defgv);
1882 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1883 AV *invoke_av;
1884 int i, len;
1885
1886 if (!invoke)
1887 croak ("\3async_pool terminate\2\n");
1888
1889 SvREFCNT_dec (coro->saved_deffh);
1890 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1891
1892 hv_store (hv, "desc", sizeof ("desc") - 1,
1893 newSVpvn (strpair ("[async_pool]")), 0);
1894
1895 invoke_av = (AV *)SvRV (invoke);
1896 len = av_len (invoke_av);
1897
1898 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1899
1900 if (len > 0)
1901 {
1902 av_fill (defav, len - 1);
1903 for (i = 0; i < len; ++i)
1904 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1905 }
1906
1907 SvREFCNT_dec (invoke);
1908}
1909
1910void
1911_pool_2 (SV *cb)
1912 CODE:
1913{
1914 struct coro *coro = SvSTATE (coro_current);
1915
1916 sv_setsv (cb, &PL_sv_undef);
1917
1918 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1919 coro->saved_deffh = 0;
1920
1921 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1922 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1923 croak ("\3async_pool terminate\2\n");
1924
1925 av_clear (GvAV (PL_defgv));
1926 hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1927 newSVpvn (strpair ("[async_pool idle]")), 0);
1928
1929 coro->prio = 0;
1930
1931 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1932 api_trace (coro_current, 0);
1933
1934 av_push (av_async_pool, newSVsv (coro_current));
1935}
1936
1937
1521MODULE = Coro::State PACKAGE = Coro::AIO 1938MODULE = Coro::State PACKAGE = Coro::AIO
1522 1939
1523SV * 1940SV *
1524_get_state () 1941_get_state ()
1525 CODE: 1942 CODE:

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