ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.147 by root, Mon Mar 19 15:50:48 2007 UTC vs.
Revision 1.199 by root, Sun Oct 7 13:53:37 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
… …
88/* prefer perl internal functions over our own? */ 97/* prefer perl internal functions over our own? */
89#ifndef CORO_PREFER_PERL_FUNCTIONS 98#ifndef CORO_PREFER_PERL_FUNCTIONS
90# define CORO_PREFER_PERL_FUNCTIONS 0 99# define CORO_PREFER_PERL_FUNCTIONS 0
91#endif 100#endif
92 101
93/* The next macro should declare a variable stacklevel that contains and approximation 102/* The next macros try to return the current stack pointer, in an as
94 * to the current C stack pointer. Its property is that it changes with each call 103 * portable way as possible. */
95 * and should be unique. */
96#define dSTACKLEVEL int stacklevel 104#define dSTACKLEVEL volatile char stacklevel
97#define STACKLEVEL ((void *)&stacklevel) 105#define STACKLEVEL ((void *)&stacklevel)
98 106
99#define IN_DESTRUCT (PL_main_cv == Nullcv) 107#define IN_DESTRUCT (PL_main_cv == Nullcv)
100 108
101#if __GNUC__ >= 3 109#if __GNUC__ >= 3
102# define attribute(x) __attribute__(x) 110# define attribute(x) __attribute__(x)
103# define BARRIER __asm__ __volatile__ ("" : : : "memory") 111# define BARRIER __asm__ __volatile__ ("" : : : "memory")
112# define expect(expr,value) __builtin_expect ((expr),(value))
104#else 113#else
105# define attribute(x) 114# define attribute(x)
106# define BARRIER 115# define BARRIER
116# define expect(expr,value) (expr)
107#endif 117#endif
118
119#define expect_false(expr) expect ((expr) != 0, 0)
120#define expect_true(expr) expect ((expr) != 0, 1)
108 121
109#define NOINLINE attribute ((noinline)) 122#define NOINLINE attribute ((noinline))
110 123
111#include "CoroAPI.h" 124#include "CoroAPI.h"
112 125
… …
129}; 142};
130 143
131static size_t coro_stacksize = CORO_STACKSIZE; 144static size_t coro_stacksize = CORO_STACKSIZE;
132static struct CoroAPI coroapi; 145static struct CoroAPI coroapi;
133static AV *main_mainstack; /* used to differentiate between $main and others */ 146static AV *main_mainstack; /* used to differentiate between $main and others */
147static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 148static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 149static SV *coro_mortal; /* will be freed after next transfer */
136 150
151static GV *irsgv; /* $/ */
152static GV *stdoutgv; /* *STDOUT */
153static SV *sv_diehook;
154static SV *sv_warnhook;
155
156/* async_pool helper stuff */
157static SV *sv_pool_rss;
158static SV *sv_pool_size;
159static AV *av_async_pool;
160
137static struct coro_cctx *cctx_first; 161static struct coro_cctx *cctx_first;
138static int cctx_count, cctx_idle; 162static int cctx_count, cctx_idle;
163
164enum {
165 CC_MAPPED = 0x01,
166 CC_NOREUSE = 0x02, /* throw this away after tracing */
167 CC_TRACE = 0x04,
168 CC_TRACE_SUB = 0x08, /* trace sub calls */
169 CC_TRACE_LINE = 0x10, /* trace each statement */
170 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
171};
139 172
140/* this is a structure representing a c-level coroutine */ 173/* this is a structure representing a c-level coroutine */
141typedef struct coro_cctx { 174typedef struct coro_cctx {
142 struct coro_cctx *next; 175 struct coro_cctx *next;
143 176
… …
152 coro_context cctx; 185 coro_context cctx;
153 186
154#if CORO_USE_VALGRIND 187#if CORO_USE_VALGRIND
155 int valgrind_id; 188 int valgrind_id;
156#endif 189#endif
157 char inuse, mapped; 190 unsigned char flags;
158} coro_cctx; 191} coro_cctx;
159 192
160enum { 193enum {
161 CF_RUNNING = 0x0001, /* coroutine is running */ 194 CF_RUNNING = 0x0001, /* coroutine is running */
162 CF_READY = 0x0002, /* coroutine is ready */ 195 CF_READY = 0x0002, /* coroutine is ready */
163 CF_NEW = 0x0004, /* has never been switched to */ 196 CF_NEW = 0x0004, /* has never been switched to */
164 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 197 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
165}; 198};
166 199
200/* the structure where most of the perl state is stored, overlaid on the cxstack */
201typedef struct {
202 SV *defsv;
203 AV *defav;
204 SV *errsv;
205 SV *irsgv;
206#define VAR(name,type) type name;
207# include "state.h"
208#undef VAR
209} perl_slots;
210
211#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
212
167/* this is a structure representing a perl-level coroutine */ 213/* this is a structure representing a perl-level coroutine */
168struct coro { 214struct coro {
169 /* the c coroutine allocated to this perl coroutine, if any */ 215 /* the c coroutine allocated to this perl coroutine, if any */
170 coro_cctx *cctx; 216 coro_cctx *cctx;
171 217
218 /* process data */
219 AV *mainstack;
220 perl_slots *slot; /* basically the saved sp */
221
172 /* data associated with this coroutine (initial args) */ 222 /* data associated with this coroutine (initial args) */
173 AV *args; 223 AV *args;
174 int refcnt; 224 int refcnt;
175 int save; /* CORO_SAVE flags */
176 int flags; /* CF_ flags */ 225 int flags; /* CF_ flags */
177 226
178 /* optionally saved, might be zero */ 227 /* statistics */
179 AV *defav; /* @_ */ 228 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
189 229
190 /* coro process data */ 230 /* coro process data */
191 int prio; 231 int prio;
232 SV *throw;
233
234 /* async_pool */
235 SV *saved_deffh;
236
237 /* linked list */
238 struct coro *next, *prev;
239 HV *hv; /* the perl hash associated with this coro, if any */
192}; 240};
193 241
194typedef struct coro *Coro__State; 242typedef struct coro *Coro__State;
195typedef struct coro *Coro__State_or_hashref; 243typedef struct coro *Coro__State_or_hashref;
196 244
… …
205 253
206/* for Coro.pm */ 254/* for Coro.pm */
207static SV *coro_current; 255static SV *coro_current;
208static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 256static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
209static int coro_nready; 257static int coro_nready;
258static struct coro *coro_first;
210 259
211/** lowlevel stuff **********************************************************/ 260/** lowlevel stuff **********************************************************/
261
262static SV *
263coro_get_sv (const char *name, int create)
264{
265#if PERL_VERSION_ATLEAST (5,9,0)
266 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
267 get_sv (name, create);
268#endif
269 return get_sv (name, create);
270}
271
272static SV *
273coro_get_av (const char *name, int create)
274{
275#if PERL_VERSION_ATLEAST (5,9,0)
276 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
277 get_av (name, create);
278#endif
279 return get_av (name, create);
280}
212 281
213static AV * 282static AV *
214coro_clone_padlist (pTHX_ CV *cv) 283coro_clone_padlist (pTHX_ CV *cv)
215{ 284{
216 AV *padlist = CvPADLIST (cv); 285 AV *padlist = CvPADLIST (cv);
… …
280 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 349 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
281 ? SvMAGIC (cv) \ 350 ? SvMAGIC (cv) \
282 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 351 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
283 : 0 352 : 0
284 353
354static struct coro *
355SvSTATE_ (pTHX_ SV *coro)
356{
357 HV *stash;
358 MAGIC *mg;
359
360 if (SvROK (coro))
361 coro = SvRV (coro);
362
363 if (expect_false (SvTYPE (coro) != SVt_PVHV))
364 croak ("Coro::State object required");
365
366 stash = SvSTASH (coro);
367 if (expect_false (stash != coro_stash && stash != coro_state_stash))
368 {
369 /* very slow, but rare, check */
370 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
371 croak ("Coro::State object required");
372 }
373
374 mg = CORO_MAGIC (coro);
375 return (struct coro *)mg->mg_ptr;
376}
377
378#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
379
285/* the next two functions merely cache the padlists */ 380/* the next two functions merely cache the padlists */
286static void 381static void
287get_padlist (pTHX_ CV *cv) 382get_padlist (pTHX_ CV *cv)
288{ 383{
289 MAGIC *mg = CORO_MAGIC (cv); 384 MAGIC *mg = CORO_MAGIC (cv);
290 AV *av; 385 AV *av;
291 386
292 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 387 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
293 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 388 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
294 else 389 else
295 { 390 {
296#if CORO_PREFER_PERL_FUNCTIONS 391#if CORO_PREFER_PERL_FUNCTIONS
297 /* this is probably cleaner, but also slower? */ 392 /* this is probably cleaner, but also slower? */
… …
309put_padlist (pTHX_ CV *cv) 404put_padlist (pTHX_ CV *cv)
310{ 405{
311 MAGIC *mg = CORO_MAGIC (cv); 406 MAGIC *mg = CORO_MAGIC (cv);
312 AV *av; 407 AV *av;
313 408
314 if (!mg) 409 if (expect_false (!mg))
315 { 410 {
316 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 411 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
317 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 412 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
318 mg->mg_virtual = &vtbl_coro; 413 mg->mg_virtual = &vtbl_coro;
319 mg->mg_obj = (SV *)newAV (); 414 mg->mg_obj = (SV *)newAV ();
320 } 415 }
321 416
322 av = (AV *)mg->mg_obj; 417 av = (AV *)mg->mg_obj;
323 418
324 if (AvFILLp (av) >= AvMAX (av)) 419 if (expect_false (AvFILLp (av) >= AvMAX (av)))
325 av_extend (av, AvMAX (av) + 1); 420 av_extend (av, AvMAX (av) + 1);
326 421
327 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 422 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
328} 423}
329 424
330/** load & save, init *******************************************************/ 425/** load & save, init *******************************************************/
331 426
332#define SB do {
333#define SE } while (0)
334
335#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
336
337static void 427static void
338load_perl (pTHX_ Coro__State c) 428load_perl (pTHX_ Coro__State c)
339{ 429{
430 perl_slots *slot = c->slot;
431 c->slot = 0;
432
433 PL_mainstack = c->mainstack;
434
435 GvSV (PL_defgv) = slot->defsv;
436 GvAV (PL_defgv) = slot->defav;
437 GvSV (PL_errgv) = slot->errsv;
438 GvSV (irsgv) = slot->irsgv;
439
340#define VAR(name,type) PL_ ## name = c->name; 440 #define VAR(name,type) PL_ ## name = slot->name;
341# include "state.h" 441 # include "state.h"
342#undef VAR 442 #undef VAR
343
344 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
345 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
346 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
347 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
348
349 if (c->irssv)
350 {
351 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
352 {
353 SvREFCNT_dec (c->irssv);
354 c->irssv = 0;
355 }
356 else
357 {
358 REPLACE_SV (PL_rs, c->irssv);
359 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
360 sv_setsv (c->irssv_sv, PL_rs);
361 }
362 }
363 443
364 { 444 {
365 dSP; 445 dSP;
446
366 CV *cv; 447 CV *cv;
367 448
368 /* now do the ugly restore mess */ 449 /* now do the ugly restore mess */
369 while ((cv = (CV *)POPs)) 450 while (expect_true (cv = (CV *)POPs))
370 { 451 {
371 put_padlist (aTHX_ cv); /* mark this padlist as available */ 452 put_padlist (aTHX_ cv); /* mark this padlist as available */
372 CvDEPTH (cv) = PTR2IV (POPs); 453 CvDEPTH (cv) = PTR2IV (POPs);
373 CvPADLIST (cv) = (AV *)POPs; 454 CvPADLIST (cv) = (AV *)POPs;
374 } 455 }
375 456
376 PUTBACK; 457 PUTBACK;
377 } 458 }
378 assert (!PL_comppad || AvARRAY (PL_comppad));//D
379} 459}
380 460
381static void 461static void
382save_perl (pTHX_ Coro__State c) 462save_perl (pTHX_ Coro__State c)
383{ 463{
384 assert (!PL_comppad || AvARRAY (PL_comppad));//D
385 { 464 {
386 dSP; 465 dSP;
387 I32 cxix = cxstack_ix; 466 I32 cxix = cxstack_ix;
388 PERL_CONTEXT *ccstk = cxstack; 467 PERL_CONTEXT *ccstk = cxstack;
389 PERL_SI *top_si = PL_curstackinfo; 468 PERL_SI *top_si = PL_curstackinfo;
… …
391 /* 470 /*
392 * the worst thing you can imagine happens first - we have to save 471 * the worst thing you can imagine happens first - we have to save
393 * (and reinitialize) all cv's in the whole callchain :( 472 * (and reinitialize) all cv's in the whole callchain :(
394 */ 473 */
395 474
396 EXTEND (SP, 3 + 1);
397 PUSHs (Nullsv); 475 XPUSHs (Nullsv);
398 /* this loop was inspired by pp_caller */ 476 /* this loop was inspired by pp_caller */
399 for (;;) 477 for (;;)
400 { 478 {
401 while (cxix >= 0) 479 while (expect_true (cxix >= 0))
402 { 480 {
403 PERL_CONTEXT *cx = &ccstk[cxix--]; 481 PERL_CONTEXT *cx = &ccstk[cxix--];
404 482
405 if (CxTYPE (cx) == CXt_SUB) 483 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
406 { 484 {
407 CV *cv = cx->blk_sub.cv; 485 CV *cv = cx->blk_sub.cv;
408 486
409 if (CvDEPTH (cv)) 487 if (expect_true (CvDEPTH (cv)))
410 { 488 {
411 EXTEND (SP, 3); 489 EXTEND (SP, 3);
412 PUSHs ((SV *)CvPADLIST (cv)); 490 PUSHs ((SV *)CvPADLIST (cv));
413 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 491 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
414 PUSHs ((SV *)cv); 492 PUSHs ((SV *)cv);
… …
417 get_padlist (aTHX_ cv); 495 get_padlist (aTHX_ cv);
418 } 496 }
419 } 497 }
420 } 498 }
421 499
422 if (top_si->si_type == PERLSI_MAIN) 500 if (expect_true (top_si->si_type == PERLSI_MAIN))
423 break; 501 break;
424 502
425 top_si = top_si->si_prev; 503 top_si = top_si->si_prev;
426 ccstk = top_si->si_cxstack; 504 ccstk = top_si->si_cxstack;
427 cxix = top_si->si_cxix; 505 cxix = top_si->si_cxix;
428 } 506 }
429 507
430 PUTBACK; 508 PUTBACK;
431 } 509 }
432 510
433 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 511 /* allocate some space on the context stack for our purposes */
434 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 512 {
435 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 513 /* we manually unroll here, as usually 2 slots is enough */
436 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 514 int i;
437 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 515 if (SLOT_COUNT >= 1) CXINC;
516 if (SLOT_COUNT >= 2) CXINC;
517 if (SLOT_COUNT >= 3) CXINC;
518 for (i = 3; i < SLOT_COUNT; ++i)
519 CXINC;
438 520
521 cxstack_ix -= SLOT_COUNT; /* undo allocation */
522 }
523
524 c->mainstack = PL_mainstack;
525
526 {
527 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
528
529 slot->defav = GvAV (PL_defgv);
530 slot->defsv = DEFSV;
531 slot->errsv = ERRSV;
532 slot->irsgv = GvSV (irsgv);
533
439#define VAR(name,type)c->name = PL_ ## name; 534 #define VAR(name,type) slot->name = PL_ ## name;
440# include "state.h" 535 # include "state.h"
441#undef VAR 536 #undef VAR
537 }
442} 538}
443 539
444/* 540/*
445 * allocate various perl stacks. This is an exact copy 541 * allocate various perl stacks. This is an exact copy
446 * of perl.c:init_stacks, except that it uses less memory 542 * of perl.c:init_stacks, except that it uses less memory
… …
451# define coro_init_stacks init_stacks 547# define coro_init_stacks init_stacks
452#else 548#else
453static void 549static void
454coro_init_stacks (pTHX) 550coro_init_stacks (pTHX)
455{ 551{
456 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 552 PL_curstackinfo = new_stackinfo(32, 8);
457 PL_curstackinfo->si_type = PERLSI_MAIN; 553 PL_curstackinfo->si_type = PERLSI_MAIN;
458 PL_curstack = PL_curstackinfo->si_stack; 554 PL_curstack = PL_curstackinfo->si_stack;
459 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 555 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
460 556
461 PL_stack_base = AvARRAY(PL_curstack); 557 PL_stack_base = AvARRAY(PL_curstack);
462 PL_stack_sp = PL_stack_base; 558 PL_stack_sp = PL_stack_base;
463 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 559 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
464 560
465 New(50,PL_tmps_stack,128,SV*); 561 New(50,PL_tmps_stack,32,SV*);
466 PL_tmps_floor = -1; 562 PL_tmps_floor = -1;
467 PL_tmps_ix = -1; 563 PL_tmps_ix = -1;
468 PL_tmps_max = 128; 564 PL_tmps_max = 32;
469 565
470 New(54,PL_markstack,32,I32); 566 New(54,PL_markstack,16,I32);
471 PL_markstack_ptr = PL_markstack; 567 PL_markstack_ptr = PL_markstack;
472 PL_markstack_max = PL_markstack + 32; 568 PL_markstack_max = PL_markstack + 16;
473 569
474#ifdef SET_MARK_OFFSET 570#ifdef SET_MARK_OFFSET
475 SET_MARK_OFFSET; 571 SET_MARK_OFFSET;
476#endif 572#endif
477 573
478 New(54,PL_scopestack,32,I32); 574 New(54,PL_scopestack,8,I32);
479 PL_scopestack_ix = 0; 575 PL_scopestack_ix = 0;
480 PL_scopestack_max = 32; 576 PL_scopestack_max = 8;
481 577
482 New(54,PL_savestack,64,ANY); 578 New(54,PL_savestack,24,ANY);
483 PL_savestack_ix = 0; 579 PL_savestack_ix = 0;
484 PL_savestack_max = 64; 580 PL_savestack_max = 24;
485 581
486#if !PERL_VERSION_ATLEAST (5,9,0) 582#if !PERL_VERSION_ATLEAST (5,9,0)
487 New(54,PL_retstack,16,OP*); 583 New(54,PL_retstack,4,OP*);
488 PL_retstack_ix = 0; 584 PL_retstack_ix = 0;
489 PL_retstack_max = 16; 585 PL_retstack_max = 4;
490#endif 586#endif
491} 587}
492#endif 588#endif
493 589
494/* 590/*
495 * destroy the stacks, the callchain etc... 591 * destroy the stacks, the callchain etc...
496 */ 592 */
497static void 593static void
498coro_destroy_stacks (pTHX) 594coro_destroy_stacks (pTHX)
499{ 595{
500 if (!IN_DESTRUCT)
501 {
502 /* restore all saved variables and stuff */
503 LEAVE_SCOPE (0);
504 assert (PL_tmps_floor == -1);
505
506 /* free all temporaries */
507 FREETMPS;
508 assert (PL_tmps_ix == -1);
509
510 /* unwind all extra stacks */
511 POPSTACK_TO (PL_mainstack);
512
513 /* unwind main stack */
514 dounwind (-1);
515 }
516
517 while (PL_curstackinfo->si_next) 596 while (PL_curstackinfo->si_next)
518 PL_curstackinfo = PL_curstackinfo->si_next; 597 PL_curstackinfo = PL_curstackinfo->si_next;
519 598
520 while (PL_curstackinfo) 599 while (PL_curstackinfo)
521 { 600 {
… …
536#if !PERL_VERSION_ATLEAST (5,9,0) 615#if !PERL_VERSION_ATLEAST (5,9,0)
537 Safefree (PL_retstack); 616 Safefree (PL_retstack);
538#endif 617#endif
539} 618}
540 619
620static size_t
621coro_rss (pTHX_ struct coro *coro)
622{
623 size_t rss = sizeof (*coro);
624
625 if (coro->mainstack)
626 {
627 perl_slots tmp_slot;
628 perl_slots *slot;
629
630 if (coro->flags & CF_RUNNING)
631 {
632 slot = &tmp_slot;
633
634 #define VAR(name,type) slot->name = PL_ ## name;
635 # include "state.h"
636 #undef VAR
637 }
638 else
639 slot = coro->slot;
640
641 rss += sizeof (slot->curstackinfo);
642 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
643 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
644 rss += slot->tmps_max * sizeof (SV *);
645 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
646 rss += slot->scopestack_max * sizeof (I32);
647 rss += slot->savestack_max * sizeof (ANY);
648
649#if !PERL_VERSION_ATLEAST (5,9,0)
650 rss += slot->retstack_max * sizeof (OP *);
651#endif
652 }
653
654 return rss;
655}
656
541/** coroutine stack handling ************************************************/ 657/** coroutine stack handling ************************************************/
542 658
543static void 659static void
544setup_coro (pTHX_ struct coro *coro) 660coro_setup (pTHX_ struct coro *coro)
545{ 661{
546 /* 662 /*
547 * emulate part of the perl startup here. 663 * emulate part of the perl startup here.
548 */ 664 */
549 coro_init_stacks (aTHX); 665 coro_init_stacks (aTHX);
550 666
667 PL_runops = RUNOPS_DEFAULT;
551 PL_curcop = &PL_compiling; 668 PL_curcop = &PL_compiling;
552 PL_in_eval = EVAL_NULL; 669 PL_in_eval = EVAL_NULL;
553 PL_comppad = 0; 670 PL_comppad = 0;
554 PL_curpm = 0; 671 PL_curpm = 0;
672 PL_curpad = 0;
555 PL_localizing = 0; 673 PL_localizing = 0;
556 PL_dirty = 0; 674 PL_dirty = 0;
557 PL_restartop = 0; 675 PL_restartop = 0;
676 PL_diehook = SvREFCNT_inc (sv_diehook);
677 PL_warnhook = SvREFCNT_inc (sv_warnhook);
678
679 GvSV (PL_defgv) = newSV (0);
680 GvAV (PL_defgv) = coro->args; coro->args = 0;
681 GvSV (PL_errgv) = newSV (0);
682 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
683 PL_rs = newSVsv (GvSV (irsgv));
684 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
558 685
559 { 686 {
560 dSP; 687 dSP;
561 LOGOP myop; 688 LOGOP myop;
562 689
563 SvREFCNT_dec (GvAV (PL_defgv));
564 GvAV (PL_defgv) = coro->args; coro->args = 0;
565
566 Zero (&myop, 1, LOGOP); 690 Zero (&myop, 1, LOGOP);
567 myop.op_next = Nullop; 691 myop.op_next = Nullop;
568 myop.op_flags = OPf_WANT_VOID; 692 myop.op_flags = OPf_WANT_VOID;
569 693
570 PUSHMARK (SP); 694 PUSHMARK (SP);
571 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 695 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
572 PUTBACK; 696 PUTBACK;
573 PL_op = (OP *)&myop; 697 PL_op = (OP *)&myop;
574 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 698 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
575 SPAGAIN; 699 SPAGAIN;
576 } 700 }
577 701
578 ENTER; /* necessary e.g. for dounwind */ 702 ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */
703}
704
705static void
706coro_destroy (pTHX_ struct coro *coro)
707{
708 if (!IN_DESTRUCT)
709 {
710 /* restore all saved variables and stuff */
711 LEAVE_SCOPE (0);
712 assert (PL_tmps_floor == -1);
713
714 /* free all temporaries */
715 FREETMPS;
716 assert (PL_tmps_ix == -1);
717
718 /* unwind all extra stacks */
719 POPSTACK_TO (PL_mainstack);
720
721 /* unwind main stack */
722 dounwind (-1);
723 }
724
725 SvREFCNT_dec (GvSV (PL_defgv));
726 SvREFCNT_dec (GvAV (PL_defgv));
727 SvREFCNT_dec (GvSV (PL_errgv));
728 SvREFCNT_dec (PL_defoutgv);
729 SvREFCNT_dec (PL_rs);
730 SvREFCNT_dec (GvSV (irsgv));
731
732 SvREFCNT_dec (PL_diehook);
733 SvREFCNT_dec (PL_warnhook);
734
735 SvREFCNT_dec (coro->saved_deffh);
736 SvREFCNT_dec (coro->throw);
737
738 coro_destroy_stacks (aTHX);
579} 739}
580 740
581static void 741static void
582free_coro_mortal (pTHX) 742free_coro_mortal (pTHX)
583{ 743{
584 if (coro_mortal) 744 if (expect_true (coro_mortal))
585 { 745 {
586 SvREFCNT_dec (coro_mortal); 746 SvREFCNT_dec (coro_mortal);
587 coro_mortal = 0; 747 coro_mortal = 0;
588 } 748 }
589} 749}
590 750
751static int
752runops_trace (pTHX)
753{
754 COP *oldcop = 0;
755 int oldcxix = -2;
756 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
757 coro_cctx *cctx = coro->cctx;
758
759 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
760 {
761 PERL_ASYNC_CHECK ();
762
763 if (cctx->flags & CC_TRACE_ALL)
764 {
765 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
766 {
767 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
768 SV **bot, **top;
769 AV *av = newAV (); /* return values */
770 SV **cb;
771 dSP;
772
773 GV *gv = CvGV (cx->blk_sub.cv);
774 SV *fullname = sv_2mortal (newSV (0));
775 if (isGV (gv))
776 gv_efullname3 (fullname, gv, 0);
777
778 bot = PL_stack_base + cx->blk_oldsp + 1;
779 top = cx->blk_gimme == G_ARRAY ? SP + 1
780 : cx->blk_gimme == G_SCALAR ? bot + 1
781 : bot;
782
783 av_extend (av, top - bot);
784 while (bot < top)
785 av_push (av, SvREFCNT_inc (*bot++));
786
787 PL_runops = RUNOPS_DEFAULT;
788 ENTER;
789 SAVETMPS;
790 EXTEND (SP, 3);
791 PUSHMARK (SP);
792 PUSHs (&PL_sv_no);
793 PUSHs (fullname);
794 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
795 PUTBACK;
796 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
797 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
798 SPAGAIN;
799 FREETMPS;
800 LEAVE;
801 PL_runops = runops_trace;
802 }
803
804 if (oldcop != PL_curcop)
805 {
806 oldcop = PL_curcop;
807
808 if (PL_curcop != &PL_compiling)
809 {
810 SV **cb;
811
812 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
813 {
814 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
815
816 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
817 {
818 runops_proc_t old_runops = PL_runops;
819 dSP;
820 GV *gv = CvGV (cx->blk_sub.cv);
821 SV *fullname = sv_2mortal (newSV (0));
822
823 if (isGV (gv))
824 gv_efullname3 (fullname, gv, 0);
825
826 PL_runops = RUNOPS_DEFAULT;
827 ENTER;
828 SAVETMPS;
829 EXTEND (SP, 3);
830 PUSHMARK (SP);
831 PUSHs (&PL_sv_yes);
832 PUSHs (fullname);
833 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
834 PUTBACK;
835 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
836 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
837 SPAGAIN;
838 FREETMPS;
839 LEAVE;
840 PL_runops = runops_trace;
841 }
842
843 oldcxix = cxstack_ix;
844 }
845
846 if (cctx->flags & CC_TRACE_LINE)
847 {
848 dSP;
849
850 PL_runops = RUNOPS_DEFAULT;
851 ENTER;
852 SAVETMPS;
853 EXTEND (SP, 3);
854 PL_runops = RUNOPS_DEFAULT;
855 PUSHMARK (SP);
856 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
857 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
858 PUTBACK;
859 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
860 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
861 SPAGAIN;
862 FREETMPS;
863 LEAVE;
864 PL_runops = runops_trace;
865 }
866 }
867 }
868 }
869 }
870
871 TAINT_NOT;
872 return 0;
873}
874
591/* inject a fake call to Coro::State::_cctx_init into the execution */ 875/* inject a fake call to Coro::State::_cctx_init into the execution */
876/* _cctx_init should be careful, as it could be called at almost any time */
877/* during execution of a perl program */
592static void NOINLINE 878static void NOINLINE
593prepare_cctx (pTHX_ coro_cctx *cctx) 879prepare_cctx (pTHX_ coro_cctx *cctx)
594{ 880{
595 dSP; 881 dSP;
596 LOGOP myop; 882 LOGOP myop;
883
884 PL_top_env = &PL_start_env;
885
886 if (cctx->flags & CC_TRACE)
887 PL_runops = runops_trace;
597 888
598 Zero (&myop, 1, LOGOP); 889 Zero (&myop, 1, LOGOP);
599 myop.op_next = PL_op; 890 myop.op_next = PL_op;
600 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 891 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
601 892
… …
607 PL_op = (OP *)&myop; 898 PL_op = (OP *)&myop;
608 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 899 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
609 SPAGAIN; 900 SPAGAIN;
610} 901}
611 902
903/*
904 * this is a _very_ stripped down perl interpreter ;)
905 */
612static void 906static void
613coro_run (void *arg) 907coro_run (void *arg)
614{ 908{
615 dTHX; 909 dTHX;
616 910
617 /* coro_run is the alternative tail of transfer(), so unlock here. */ 911 /* coro_run is the alternative tail of transfer(), so unlock here. */
618 UNLOCK; 912 UNLOCK;
619 913
620 /* 914 /* we now skip the entersub that lead to transfer() */
621 * this is a _very_ stripped down perl interpreter ;) 915 PL_op = PL_op->op_next;
622 */
623 PL_top_env = &PL_start_env;
624 916
625 /* inject call to cctx_init */ 917 /* inject a fake subroutine call to cctx_init */
626 prepare_cctx (aTHX_ (coro_cctx *)arg); 918 prepare_cctx (aTHX_ (coro_cctx *)arg);
627 919
628 /* somebody will hit me for both perl_run and PL_restartop */ 920 /* somebody or something will hit me for both perl_run and PL_restartop */
629 PL_restartop = PL_op; 921 PL_restartop = PL_op;
630 perl_run (PL_curinterp); 922 perl_run (PL_curinterp);
631 923
632 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 924 /*
633 abort (); 925 * If perl-run returns we assume exit() was being called or the coro
926 * fell off the end, which seems to be the only valid (non-bug)
927 * reason for perl_run to return. We try to exit by jumping to the
928 * bootstrap-time "top" top_env, as we cannot restore the "main"
929 * coroutine as Coro has no such concept
930 */
931 PL_top_env = main_top_env;
932 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
634} 933}
635 934
636static coro_cctx * 935static coro_cctx *
637cctx_new () 936cctx_new ()
638{ 937{
… …
655# if CORO_STACKGUARD 954# if CORO_STACKGUARD
656 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 955 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
657# endif 956# endif
658 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 957 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
659 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 958 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
660 cctx->mapped = 1; 959 cctx->flags |= CC_MAPPED;
661 } 960 }
662 else 961 else
663#endif 962#endif
664 { 963 {
665 cctx->ssize = coro_stacksize * (long)sizeof (long); 964 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
692#if CORO_USE_VALGRIND 991#if CORO_USE_VALGRIND
693 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 992 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
694#endif 993#endif
695 994
696#if HAVE_MMAP 995#if HAVE_MMAP
697 if (cctx->mapped) 996 if (cctx->flags & CC_MAPPED)
698 munmap (cctx->sptr, cctx->ssize); 997 munmap (cctx->sptr, cctx->ssize);
699 else 998 else
700#endif 999#endif
701 Safefree (cctx->sptr); 1000 Safefree (cctx->sptr);
702 1001
703 Safefree (cctx); 1002 Safefree (cctx);
704} 1003}
705 1004
1005/* wether this cctx should be destructed */
1006#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1007
706static coro_cctx * 1008static coro_cctx *
707cctx_get (pTHX) 1009cctx_get (pTHX)
708{ 1010{
709 while (cctx_first) 1011 while (expect_true (cctx_first))
710 { 1012 {
711 coro_cctx *cctx = cctx_first; 1013 coro_cctx *cctx = cctx_first;
712 cctx_first = cctx->next; 1014 cctx_first = cctx->next;
713 --cctx_idle; 1015 --cctx_idle;
714 1016
715 if (cctx->ssize >= coro_stacksize) 1017 if (expect_true (!CCTX_EXPIRED (cctx)))
716 return cctx; 1018 return cctx;
717 1019
718 cctx_destroy (cctx); 1020 cctx_destroy (cctx);
719 } 1021 }
720 1022
721 PL_op = PL_op->op_next;
722 return cctx_new (); 1023 return cctx_new ();
723} 1024}
724 1025
725static void 1026static void
726cctx_put (coro_cctx *cctx) 1027cctx_put (coro_cctx *cctx)
727{ 1028{
728 /* free another cctx if overlimit */ 1029 /* free another cctx if overlimit */
729 if (cctx_idle >= MAX_IDLE_CCTX) 1030 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
730 { 1031 {
731 coro_cctx *first = cctx_first; 1032 coro_cctx *first = cctx_first;
732 cctx_first = first->next; 1033 cctx_first = first->next;
733 --cctx_idle; 1034 --cctx_idle;
734 1035
735 assert (!first->inuse);
736 cctx_destroy (first); 1036 cctx_destroy (first);
737 } 1037 }
738 1038
739 ++cctx_idle; 1039 ++cctx_idle;
740 cctx->next = cctx_first; 1040 cctx->next = cctx_first;
741 cctx_first = cctx; 1041 cctx_first = cctx;
742} 1042}
743 1043
744/** coroutine switching *****************************************************/ 1044/** coroutine switching *****************************************************/
745 1045
746/* never call directly, always through the coro_state_transfer global variable */ 1046static void
1047transfer_check (pTHX_ struct coro *prev, struct coro *next)
1048{
1049 if (expect_true (prev != next))
1050 {
1051 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1052 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
1053
1054 if (expect_false (next->flags & CF_RUNNING))
1055 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1056
1057 if (expect_false (next->flags & CF_DESTROYED))
1058 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1059
1060 if (
1061#if PERL_VERSION_ATLEAST (5,9,0)
1062 expect_false (PL_parser)
1063#else
1064 expect_false (PL_lex_state != LEX_NOTPARSING)
1065#endif
1066 )
1067 croak ("Coro::State::transfer called while parsing, but this is not supported");
1068 }
1069}
1070
1071/* always use the TRANSFER macro */
747static void NOINLINE 1072static void NOINLINE
748transfer (pTHX_ struct coro *prev, struct coro *next) 1073transfer (pTHX_ struct coro *prev, struct coro *next)
749{ 1074{
750 dSTACKLEVEL; 1075 dSTACKLEVEL;
751 1076
752 /* sometimes transfer is only called to set idle_sp */ 1077 /* sometimes transfer is only called to set idle_sp */
753 if (!next) 1078 if (expect_false (!next))
754 { 1079 {
755 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1080 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
756 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1081 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
757 } 1082 }
758 else if (prev != next) 1083 else if (expect_true (prev != next))
759 { 1084 {
760 coro_cctx *prev__cctx; 1085 coro_cctx *prev__cctx;
761 1086
762 if (prev->flags & CF_NEW) 1087 if (expect_false (prev->flags & CF_NEW))
763 { 1088 {
764 /* create a new empty context */ 1089 /* create a new empty context */
765 Newz (0, prev->cctx, 1, coro_cctx); 1090 Newz (0, prev->cctx, 1, coro_cctx);
766 prev->cctx->inuse = 1;
767 prev->flags &= ~CF_NEW; 1091 prev->flags &= ~CF_NEW;
768 prev->flags |= CF_RUNNING; 1092 prev->flags |= CF_RUNNING;
769 } 1093 }
770 1094
771 /*TODO: must not croak here */
772 if (!prev->flags & CF_RUNNING)
773 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
774
775 if (next->flags & CF_RUNNING)
776 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
777
778 if (next->flags & CF_DESTROYED)
779 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
780
781 prev->flags &= ~CF_RUNNING; 1095 prev->flags &= ~CF_RUNNING;
782 next->flags |= CF_RUNNING; 1096 next->flags |= CF_RUNNING;
783 1097
784 LOCK; 1098 LOCK;
785 1099
786 if (next->flags & CF_NEW) 1100 if (expect_false (next->flags & CF_NEW))
787 { 1101 {
788 /* need to start coroutine */ 1102 /* need to start coroutine */
789 next->flags &= ~CF_NEW; 1103 next->flags &= ~CF_NEW;
790 /* first get rid of the old state */ 1104 /* first get rid of the old state */
791 save_perl (aTHX_ prev); 1105 save_perl (aTHX_ prev);
792 /* setup coroutine call */ 1106 /* setup coroutine call */
793 setup_coro (aTHX_ next); 1107 coro_setup (aTHX_ next);
794 /* need a new stack */
795 assert (!next->cctx);
796 } 1108 }
797 else 1109 else
798 { 1110 {
799 /* coroutine already started */ 1111 /* coroutine already started */
800 save_perl (aTHX_ prev); 1112 save_perl (aTHX_ prev);
… …
802 } 1114 }
803 1115
804 prev__cctx = prev->cctx; 1116 prev__cctx = prev->cctx;
805 1117
806 /* possibly "free" the cctx */ 1118 /* possibly "free" the cctx */
807 if (prev__cctx->idle_sp == STACKLEVEL) 1119 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
808 { 1120 {
809 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1121 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
810 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1122 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
811 1123
812 prev->cctx = 0; 1124 prev->cctx = 0;
813 1125
1126 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1127 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1128 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1129 next->cctx = cctx_get (aTHX);
1130
814 cctx_put (prev__cctx); 1131 cctx_put (prev__cctx);
815 prev__cctx->inuse = 0;
816 } 1132 }
817 1133
1134 ++next->usecount;
1135
818 if (!next->cctx) 1136 if (expect_true (!next->cctx))
819 {
820 next->cctx = cctx_get (aTHX); 1137 next->cctx = cctx_get (aTHX);
821 assert (!next->cctx->inuse);
822 next->cctx->inuse = 1;
823 }
824 1138
825 if (prev__cctx != next->cctx) 1139 if (expect_false (prev__cctx != next->cctx))
826 { 1140 {
827 prev__cctx->top_env = PL_top_env; 1141 prev__cctx->top_env = PL_top_env;
828 PL_top_env = next->cctx->top_env; 1142 PL_top_env = next->cctx->top_env;
829 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1143 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
830 } 1144 }
831 1145
832 free_coro_mortal (aTHX); 1146 free_coro_mortal (aTHX);
833 UNLOCK; 1147 UNLOCK;
1148
1149 if (expect_false (prev->throw || next->throw))
1150 {
1151 struct coro *coro = SvSTATE (coro_current);
1152
1153 if (coro->throw)
1154 {
1155 SV *exception = coro->throw;
1156 coro->throw = 0;
1157 sv_setsv (ERRSV, exception);
1158 croak (0);
1159 }
1160 }
834 } 1161 }
835} 1162}
836 1163
837struct transfer_args 1164struct transfer_args
838{ 1165{
839 struct coro *prev, *next; 1166 struct coro *prev, *next;
840}; 1167};
841 1168
842#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1169#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1170#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
843 1171
844/** high level stuff ********************************************************/ 1172/** high level stuff ********************************************************/
845 1173
846static int 1174static int
847coro_state_destroy (pTHX_ struct coro *coro) 1175coro_state_destroy (pTHX_ struct coro *coro)
… …
864 1192
865 if (coro->mainstack && coro->mainstack != main_mainstack) 1193 if (coro->mainstack && coro->mainstack != main_mainstack)
866 { 1194 {
867 struct coro temp; 1195 struct coro temp;
868 1196
869 assert (!(coro->flags & CF_RUNNING));
870
871 Zero (&temp, 1, struct coro);
872 temp.save = CORO_SAVE_DEF;
873
874 if (coro->flags & CF_RUNNING) 1197 if (coro->flags & CF_RUNNING)
875 croak ("FATAL: tried to destroy currently running coroutine"); 1198 croak ("FATAL: tried to destroy currently running coroutine");
876 1199
877 save_perl (aTHX_ &temp); 1200 save_perl (aTHX_ &temp);
878 load_perl (aTHX_ coro); 1201 load_perl (aTHX_ coro);
879 1202
880 coro_destroy_stacks (aTHX); 1203 coro_destroy (aTHX_ coro);
881 1204
882 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1205 load_perl (aTHX_ &temp);
883 1206
884 coro->mainstack = 0; 1207 coro->slot = 0;
885 } 1208 }
886 1209
887 cctx_destroy (coro->cctx); 1210 cctx_destroy (coro->cctx);
888 SvREFCNT_dec (coro->args); 1211 SvREFCNT_dec (coro->args);
889 1212
1213 if (coro->next) coro->next->prev = coro->prev;
1214 if (coro->prev) coro->prev->next = coro->next;
1215 if (coro == coro_first) coro_first = coro->next;
1216
890 return 1; 1217 return 1;
891} 1218}
892 1219
893static int 1220static int
894coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1221coro_state_free (pTHX_ SV *sv, MAGIC *mg)
895{ 1222{
896 struct coro *coro = (struct coro *)mg->mg_ptr; 1223 struct coro *coro = (struct coro *)mg->mg_ptr;
897 mg->mg_ptr = 0; 1224 mg->mg_ptr = 0;
1225
1226 coro->hv = 0;
898 1227
899 if (--coro->refcnt < 0) 1228 if (--coro->refcnt < 0)
900 { 1229 {
901 coro_state_destroy (aTHX_ coro); 1230 coro_state_destroy (aTHX_ coro);
902 Safefree (coro); 1231 Safefree (coro);
… …
924#else 1253#else
925# define MGf_DUP 0 1254# define MGf_DUP 0
926#endif 1255#endif
927}; 1256};
928 1257
929static struct coro *
930SvSTATE_ (pTHX_ SV *coro)
931{
932 HV *stash;
933 MAGIC *mg;
934
935 if (SvROK (coro))
936 coro = SvRV (coro);
937
938 stash = SvSTASH (coro);
939 if (stash != coro_stash && stash != coro_state_stash)
940 {
941 /* very slow, but rare, check */
942 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
943 croak ("Coro::State object required");
944 }
945
946 mg = CORO_MAGIC (coro);
947 return (struct coro *)mg->mg_ptr;
948}
949
950#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
951
952static void 1258static void
953prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1259prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
954{ 1260{
955 ta->prev = SvSTATE (prev_sv); 1261 ta->prev = SvSTATE (prev_sv);
956 ta->next = SvSTATE (next_sv); 1262 ta->next = SvSTATE (next_sv);
1263 TRANSFER_CHECK (*ta);
957} 1264}
958 1265
959static void 1266static void
960api_transfer (SV *prev_sv, SV *next_sv) 1267api_transfer (SV *prev_sv, SV *next_sv)
961{ 1268{
962 dTHX; 1269 dTHX;
963 struct transfer_args ta; 1270 struct transfer_args ta;
964 1271
965 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1272 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
966 TRANSFER (ta); 1273 TRANSFER (ta);
967}
968
969static int
970api_save (SV *coro_sv, int new_save)
971{
972 dTHX;
973 struct coro *coro = SvSTATE (coro_sv);
974 int old_save = coro->save;
975
976 if (new_save >= 0)
977 coro->save = new_save;
978
979 return old_save;
980} 1274}
981 1275
982/** Coro ********************************************************************/ 1276/** Coro ********************************************************************/
983 1277
984static void 1278static void
… …
1043 { 1337 {
1044 LOCK; 1338 LOCK;
1045 next_sv = coro_deq (aTHX_ PRIO_MIN); 1339 next_sv = coro_deq (aTHX_ PRIO_MIN);
1046 1340
1047 /* nothing to schedule: call the idle handler */ 1341 /* nothing to schedule: call the idle handler */
1048 if (!next_sv) 1342 if (expect_false (!next_sv))
1049 { 1343 {
1050 dSP; 1344 dSP;
1051 UNLOCK; 1345 UNLOCK;
1052 1346
1053 ENTER; 1347 ENTER;
… …
1063 } 1357 }
1064 1358
1065 ta->next = SvSTATE (next_sv); 1359 ta->next = SvSTATE (next_sv);
1066 1360
1067 /* cannot transfer to destroyed coros, skip and look for next */ 1361 /* cannot transfer to destroyed coros, skip and look for next */
1068 if (ta->next->flags & CF_DESTROYED) 1362 if (expect_false (ta->next->flags & CF_DESTROYED))
1069 { 1363 {
1070 UNLOCK; 1364 UNLOCK;
1071 SvREFCNT_dec (next_sv); 1365 SvREFCNT_dec (next_sv);
1072 /* coro_nready is already taken care of by destroy */ 1366 /* coro_nready is already taken care of by destroy */
1073 continue; 1367 continue;
… …
1078 break; 1372 break;
1079 } 1373 }
1080 1374
1081 /* free this only after the transfer */ 1375 /* free this only after the transfer */
1082 prev_sv = SvRV (coro_current); 1376 prev_sv = SvRV (coro_current);
1083 SvRV_set (coro_current, next_sv);
1084 ta->prev = SvSTATE (prev_sv); 1377 ta->prev = SvSTATE (prev_sv);
1085 1378 TRANSFER_CHECK (*ta);
1086 assert (ta->next->flags & CF_READY); 1379 assert (ta->next->flags & CF_READY);
1087 ta->next->flags &= ~CF_READY; 1380 ta->next->flags &= ~CF_READY;
1381 SvRV_set (coro_current, next_sv);
1088 1382
1089 LOCK; 1383 LOCK;
1090 free_coro_mortal (aTHX); 1384 free_coro_mortal (aTHX);
1091 coro_mortal = prev_sv; 1385 coro_mortal = prev_sv;
1092 UNLOCK; 1386 UNLOCK;
… …
1129 dTHX; 1423 dTHX;
1130 struct transfer_args ta; 1424 struct transfer_args ta;
1131 1425
1132 prepare_cede (aTHX_ &ta); 1426 prepare_cede (aTHX_ &ta);
1133 1427
1134 if (ta.prev != ta.next) 1428 if (expect_true (ta.prev != ta.next))
1135 { 1429 {
1136 TRANSFER (ta); 1430 TRANSFER (ta);
1137 return 1; 1431 return 1;
1138 } 1432 }
1139 else 1433 else
… …
1153 } 1447 }
1154 else 1448 else
1155 return 0; 1449 return 0;
1156} 1450}
1157 1451
1452static void
1453api_trace (SV *coro_sv, int flags)
1454{
1455 dTHX;
1456 struct coro *coro = SvSTATE (coro_sv);
1457
1458 if (flags & CC_TRACE)
1459 {
1460 if (!coro->cctx)
1461 coro->cctx = cctx_new ();
1462 else if (!(coro->cctx->flags & CC_TRACE))
1463 croak ("cannot enable tracing on coroutine with custom stack");
1464
1465 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1466 }
1467 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1468 {
1469 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1470
1471 if (coro->flags & CF_RUNNING)
1472 PL_runops = RUNOPS_DEFAULT;
1473 else
1474 coro->slot->runops = RUNOPS_DEFAULT;
1475 }
1476}
1477
1158MODULE = Coro::State PACKAGE = Coro::State 1478MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1159 1479
1160PROTOTYPES: DISABLE 1480PROTOTYPES: DISABLE
1161 1481
1162BOOT: 1482BOOT:
1163{ 1483{
1164#ifdef USE_ITHREADS 1484#ifdef USE_ITHREADS
1165 MUTEX_INIT (&coro_mutex); 1485 MUTEX_INIT (&coro_mutex);
1166#endif 1486#endif
1167 BOOT_PAGESIZE; 1487 BOOT_PAGESIZE;
1168 1488
1489 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1490 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1491
1492 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1493 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1494
1495 if (!PL_diehook) PL_diehook = SvREFCNT_inc (sv_diehook);
1496 if (!PL_warnhook) PL_warnhook = SvREFCNT_inc (sv_warnhook);
1497
1169 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1498 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1170 1499
1171 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1500 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1172 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1501 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1173 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1174 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1175 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1176 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1502 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1177 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1503 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1178 1504
1179 main_mainstack = PL_mainstack; 1505 main_mainstack = PL_mainstack;
1506 main_top_env = PL_top_env;
1507
1508 while (main_top_env->je_prev)
1509 main_top_env = main_top_env->je_prev;
1180 1510
1181 coroapi.ver = CORO_API_VERSION; 1511 coroapi.ver = CORO_API_VERSION;
1182 coroapi.transfer = api_transfer; 1512 coroapi.transfer = api_transfer;
1183 1513
1184 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1514 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
… …
1191 struct coro *coro; 1521 struct coro *coro;
1192 HV *hv; 1522 HV *hv;
1193 int i; 1523 int i;
1194 1524
1195 Newz (0, coro, 1, struct coro); 1525 Newz (0, coro, 1, struct coro);
1196 coro->args = newAV (); 1526 coro->args = newAV ();
1197 coro->save = CORO_SAVE_DEF;
1198 coro->flags = CF_NEW; 1527 coro->flags = CF_NEW;
1199 1528
1529 if (coro_first) coro_first->prev = coro;
1530 coro->next = coro_first;
1531 coro_first = coro;
1532
1200 hv = newHV (); 1533 coro->hv = hv = newHV ();
1201 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1534 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1202 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1535 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1203 1536
1537 av_extend (coro->args, items - 1);
1204 for (i = 1; i < items; i++) 1538 for (i = 1; i < items; i++)
1205 av_push (coro->args, newSVsv (ST (i))); 1539 av_push (coro->args, newSVsv (ST (i)));
1206} 1540}
1207 OUTPUT: 1541 OUTPUT:
1208 RETVAL 1542 RETVAL
1209 1543
1210int 1544# these not obviously related functions are all rolled into the same xs
1211save (SV *coro, int new_save = -1) 1545# function to increase chances that they all will call transfer with the same
1212 CODE: 1546# stack offset
1213 RETVAL = api_save (coro, new_save);
1214 OUTPUT:
1215 RETVAL
1216
1217int
1218save_also (SV *coro_sv, int save_also)
1219 CODE:
1220{
1221 struct coro *coro = SvSTATE (coro_sv);
1222 RETVAL = coro->save;
1223 coro->save |= save_also;
1224}
1225 OUTPUT:
1226 RETVAL
1227
1228void 1547void
1229_set_stacklevel (...) 1548_set_stacklevel (...)
1230 ALIAS: 1549 ALIAS:
1231 Coro::State::transfer = 1 1550 Coro::State::transfer = 1
1232 Coro::schedule = 2 1551 Coro::schedule = 2
… …
1266 } 1585 }
1267 1586
1268 BARRIER; 1587 BARRIER;
1269 TRANSFER (ta); 1588 TRANSFER (ta);
1270 1589
1271 if (GIMME_V != G_VOID && ta.next != ta.prev) 1590 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1272 XSRETURN_YES; 1591 XSRETURN_YES;
1273} 1592}
1274 1593
1275bool 1594bool
1276_destroy (SV *coro_sv) 1595_destroy (SV *coro_sv)
… …
1307 CODE: 1626 CODE:
1308 RETVAL = cctx_idle; 1627 RETVAL = cctx_idle;
1309 OUTPUT: 1628 OUTPUT:
1310 RETVAL 1629 RETVAL
1311 1630
1631void
1632list ()
1633 PPCODE:
1634{
1635 struct coro *coro;
1636 for (coro = coro_first; coro; coro = coro->next)
1637 if (coro->hv)
1638 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1639}
1640
1641void
1642call (Coro::State coro, SV *coderef)
1643 ALIAS:
1644 eval = 1
1645 CODE:
1646{
1647 if (coro->mainstack)
1648 {
1649 struct coro temp;
1650
1651 if (!(coro->flags & CF_RUNNING))
1652 {
1653 save_perl (aTHX_ &temp);
1654 load_perl (aTHX_ coro);
1655 }
1656
1657 {
1658 dSP;
1659 ENTER;
1660 SAVETMPS;
1661 PUSHMARK (SP);
1662 PUTBACK;
1663
1664 if (ix)
1665 eval_sv (coderef, 0);
1666 else
1667 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1668
1669 SPAGAIN;
1670 FREETMPS;
1671 LEAVE;
1672 PUTBACK;
1673 }
1674
1675 if (!(coro->flags & CF_RUNNING))
1676 {
1677 save_perl (aTHX_ coro);
1678 load_perl (aTHX_ &temp);
1679 }
1680 }
1681}
1682
1683SV *
1684is_ready (Coro::State coro)
1685 PROTOTYPE: $
1686 ALIAS:
1687 is_ready = CF_READY
1688 is_running = CF_RUNNING
1689 is_new = CF_NEW
1690 is_destroyed = CF_DESTROYED
1691 CODE:
1692 RETVAL = boolSV (coro->flags & ix);
1693 OUTPUT:
1694 RETVAL
1695
1696void
1697api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1698
1699SV *
1700has_stack (Coro::State coro)
1701 PROTOTYPE: $
1702 CODE:
1703 RETVAL = boolSV (!!coro->cctx);
1704 OUTPUT:
1705 RETVAL
1706
1707int
1708is_traced (Coro::State coro)
1709 PROTOTYPE: $
1710 CODE:
1711 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1712 OUTPUT:
1713 RETVAL
1714
1715IV
1716rss (Coro::State coro)
1717 PROTOTYPE: $
1718 ALIAS:
1719 usecount = 1
1720 CODE:
1721 switch (ix)
1722 {
1723 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1724 case 1: RETVAL = coro->usecount; break;
1725 }
1726 OUTPUT:
1727 RETVAL
1728
1729
1312MODULE = Coro::State PACKAGE = Coro 1730MODULE = Coro::State PACKAGE = Coro
1313 1731
1314BOOT: 1732BOOT:
1315{ 1733{
1316 int i; 1734 int i;
1317 1735
1736 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1737 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1738 av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1739
1740 coro_current = coro_get_sv ("Coro::current", FALSE);
1741 SvREADONLY_on (coro_current);
1742
1318 coro_stash = gv_stashpv ("Coro", TRUE); 1743 coro_stash = gv_stashpv ("Coro", TRUE);
1319 1744
1320 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1745 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1321 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1746 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1322 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1747 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1323 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1748 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1324 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1749 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1325 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1750 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1326 1751
1327 coro_current = get_sv ("Coro::current", FALSE);
1328 SvREADONLY_on (coro_current);
1329
1330 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1752 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1331 coro_ready[i] = newAV (); 1753 coro_ready[i] = newAV ();
1332 1754
1333 { 1755 {
1334 SV *sv = perl_get_sv("Coro::API", 1); 1756 SV *sv = perl_get_sv ("Coro::API", TRUE);
1757 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1335 1758
1336 coroapi.schedule = api_schedule; 1759 coroapi.schedule = api_schedule;
1337 coroapi.save = api_save;
1338 coroapi.cede = api_cede; 1760 coroapi.cede = api_cede;
1339 coroapi.cede_notself = api_cede_notself; 1761 coroapi.cede_notself = api_cede_notself;
1340 coroapi.ready = api_ready; 1762 coroapi.ready = api_ready;
1341 coroapi.is_ready = api_is_ready; 1763 coroapi.is_ready = api_is_ready;
1342 coroapi.nready = &coro_nready; 1764 coroapi.nready = &coro_nready;
… …
1383 CODE: 1805 CODE:
1384 RETVAL = boolSV (api_ready (self)); 1806 RETVAL = boolSV (api_ready (self));
1385 OUTPUT: 1807 OUTPUT:
1386 RETVAL 1808 RETVAL
1387 1809
1388SV *
1389is_ready (SV *self)
1390 PROTOTYPE: $
1391 CODE:
1392 RETVAL = boolSV (api_is_ready (self));
1393 OUTPUT:
1394 RETVAL
1395
1396int 1810int
1397nready (...) 1811nready (...)
1398 PROTOTYPE: 1812 PROTOTYPE:
1399 CODE: 1813 CODE:
1400 RETVAL = coro_nready; 1814 RETVAL = coro_nready;
1401 OUTPUT: 1815 OUTPUT:
1402 RETVAL 1816 RETVAL
1403 1817
1818void
1819throw (Coro::State self, SV *throw = &PL_sv_undef)
1820 PROTOTYPE: $;$
1821 CODE:
1822 SvREFCNT_dec (self->throw);
1823 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1824
1825# for async_pool speedup
1826void
1827_pool_1 (SV *cb)
1828 CODE:
1829{
1830 struct coro *coro = SvSTATE (coro_current);
1831 HV *hv = (HV *)SvRV (coro_current);
1832 AV *defav = GvAV (PL_defgv);
1833 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1834 AV *invoke_av;
1835 int i, len;
1836
1837 if (!invoke)
1838 croak ("\3async_pool terminate\2\n");
1839
1840 SvREFCNT_dec (coro->saved_deffh);
1841 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1842
1843 hv_store (hv, "desc", sizeof ("desc") - 1,
1844 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1845
1846 invoke_av = (AV *)SvRV (invoke);
1847 len = av_len (invoke_av);
1848
1849 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1850
1851 if (len > 0)
1852 {
1853 av_fill (defav, len - 1);
1854 for (i = 0; i < len; ++i)
1855 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1856 }
1857
1858 SvREFCNT_dec (invoke);
1859}
1860
1861void
1862_pool_2 (SV *cb)
1863 CODE:
1864{
1865 struct coro *coro = SvSTATE (coro_current);
1866
1867 sv_setsv (cb, &PL_sv_undef);
1868
1869 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1870 coro->saved_deffh = 0;
1871
1872 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1873 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1874 croak ("\3async_pool terminate\2\n");
1875
1876 av_clear (GvAV (PL_defgv));
1877 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1878 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1879
1880 coro->prio = 0;
1881
1882 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1883 api_trace (coro_current, 0);
1884
1885 av_push (av_async_pool, newSVsv (coro_current));
1886}
1887
1888
1404MODULE = Coro::State PACKAGE = Coro::AIO 1889MODULE = Coro::State PACKAGE = Coro::AIO
1405 1890
1406SV * 1891SV *
1407_get_state () 1892_get_state ()
1408 CODE: 1893 CODE:

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines