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Comparing Coro/Coro/State.xs (file contents):
Revision 1.153 by root, Thu Sep 20 12:18:00 2007 UTC vs.
Revision 1.205 by root, Tue Oct 9 14:07:02 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
… …
117#else 130#else
118# define LOCK (void)0 131# define LOCK (void)0
119# define UNLOCK (void)0 132# define UNLOCK (void)0
120#endif 133#endif
121 134
135#define strpair(const) const, sizeof (const) - 1
136
122/* helper storage struct for Coro::AIO */ 137/* helper storage struct for Coro::AIO */
123struct io_state 138struct io_state
124{ 139{
125 int errorno; 140 int errorno;
126 I32 laststype; 141 I32 laststype;
… …
133static AV *main_mainstack; /* used to differentiate between $main and others */ 148static AV *main_mainstack; /* used to differentiate between $main and others */
134static JMPENV *main_top_env; 149static JMPENV *main_top_env;
135static HV *coro_state_stash, *coro_stash; 150static HV *coro_state_stash, *coro_stash;
136static SV *coro_mortal; /* will be freed after next transfer */ 151static SV *coro_mortal; /* will be freed after next transfer */
137 152
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
138static struct coro_cctx *cctx_first; 165static struct coro_cctx *cctx_first;
139static 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};
140 176
141/* this is a structure representing a c-level coroutine */ 177/* this is a structure representing a c-level coroutine */
142typedef struct coro_cctx { 178typedef struct coro_cctx {
143 struct coro_cctx *next; 179 struct coro_cctx *next;
144 180
… …
153 coro_context cctx; 189 coro_context cctx;
154 190
155#if CORO_USE_VALGRIND 191#if CORO_USE_VALGRIND
156 int valgrind_id; 192 int valgrind_id;
157#endif 193#endif
158 char inuse, mapped; 194 unsigned char flags;
159} coro_cctx; 195} coro_cctx;
160 196
161enum { 197enum {
162 CF_RUNNING = 0x0001, /* coroutine is running */ 198 CF_RUNNING = 0x0001, /* coroutine is running */
163 CF_READY = 0x0002, /* coroutine is ready */ 199 CF_READY = 0x0002, /* coroutine is ready */
164 CF_NEW = 0x0004, /* has never been switched to */ 200 CF_NEW = 0x0004, /* has never been switched to */
165 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 201 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
166}; 202};
167 203
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
168/* this is a structure representing a perl-level coroutine */ 217/* this is a structure representing a perl-level coroutine */
169struct coro { 218struct coro {
170 /* the c coroutine allocated to this perl coroutine, if any */ 219 /* the c coroutine allocated to this perl coroutine, if any */
171 coro_cctx *cctx; 220 coro_cctx *cctx;
172 221
222 /* process data */
223 AV *mainstack;
224 perl_slots *slot; /* basically the saved sp */
225
173 /* data associated with this coroutine (initial args) */ 226 AV *args; /* data associated with this coroutine (initial args) */
174 AV *args; 227 int refcnt; /* coroutines are refcounted, yes */
175 int refcnt;
176 int save; /* CORO_SAVE flags */
177 int flags; /* CF_ flags */ 228 int flags; /* CF_ flags */
229 HV *hv; /* the perl hash associated with this coro, if any */
178 230
179 /* optionally saved, might be zero */ 231 /* statistics */
180 AV *defav; /* @_ */ 232 int usecount; /* number of transfers to this coro */
181 SV *defsv; /* $_ */
182 SV *errsv; /* $@ */
183 GV *deffh; /* default filehandle */
184 SV *irssv; /* $/ */
185 SV *irssv_sv; /* real $/ cache */
186
187#define VAR(name,type) type name;
188# include "state.h"
189#undef VAR
190 233
191 /* coro process data */ 234 /* coro process data */
192 int prio; 235 int prio;
236 SV *throw; /* exception to be thrown */
237
238 /* async_pool */
239 SV *saved_deffh;
193 240
194 /* linked list */ 241 /* linked list */
195 struct coro *next, *prev; 242 struct coro *next, *prev;
196 HV *hv; /* the perl hash associated with this coro, if any */
197}; 243};
198 244
199typedef struct coro *Coro__State; 245typedef struct coro *Coro__State;
200typedef struct coro *Coro__State_or_hashref; 246typedef struct coro *Coro__State_or_hashref;
201 247
… …
213static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 259static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
214static int coro_nready; 260static int coro_nready;
215static struct coro *coro_first; 261static struct coro *coro_first;
216 262
217/** 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}
218 294
219static AV * 295static AV *
220coro_clone_padlist (pTHX_ CV *cv) 296coro_clone_padlist (pTHX_ CV *cv)
221{ 297{
222 AV *padlist = CvPADLIST (cv); 298 AV *padlist = CvPADLIST (cv);
… …
286 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 362 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
287 ? SvMAGIC (cv) \ 363 ? SvMAGIC (cv) \
288 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 364 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
289 : 0 365 : 0
290 366
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
291/* the next two functions merely cache the padlists */ 393/* the next two functions merely cache the padlists */
292static void 394static void
293get_padlist (pTHX_ CV *cv) 395get_padlist (pTHX_ CV *cv)
294{ 396{
295 MAGIC *mg = CORO_MAGIC (cv); 397 MAGIC *mg = CORO_MAGIC (cv);
296 AV *av; 398 AV *av;
297 399
298 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 400 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
299 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 401 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
300 else 402 else
301 { 403 {
302#if CORO_PREFER_PERL_FUNCTIONS 404#if CORO_PREFER_PERL_FUNCTIONS
303 /* this is probably cleaner, but also slower? */ 405 /* this is probably cleaner, but also slower? */
… …
315put_padlist (pTHX_ CV *cv) 417put_padlist (pTHX_ CV *cv)
316{ 418{
317 MAGIC *mg = CORO_MAGIC (cv); 419 MAGIC *mg = CORO_MAGIC (cv);
318 AV *av; 420 AV *av;
319 421
320 if (!mg) 422 if (expect_false (!mg))
321 { 423 {
322 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 424 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
323 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 425 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
324 mg->mg_virtual = &vtbl_coro; 426 mg->mg_virtual = &vtbl_coro;
325 mg->mg_obj = (SV *)newAV (); 427 mg->mg_obj = (SV *)newAV ();
326 } 428 }
327 429
328 av = (AV *)mg->mg_obj; 430 av = (AV *)mg->mg_obj;
329 431
330 if (AvFILLp (av) >= AvMAX (av)) 432 if (expect_false (AvFILLp (av) >= AvMAX (av)))
331 av_extend (av, AvMAX (av) + 1); 433 av_extend (av, AvMAX (av) + 1);
332 434
333 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 435 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
334} 436}
335 437
336/** load & save, init *******************************************************/ 438/** load & save, init *******************************************************/
337 439
338#define SB do {
339#define SE } while (0)
340
341#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
342
343static void 440static void
344load_perl (pTHX_ Coro__State c) 441load_perl (pTHX_ Coro__State c)
345{ 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
346#define VAR(name,type) PL_ ## name = c->name; 453 #define VAR(name,type) PL_ ## name = slot->name;
347# include "state.h" 454 # include "state.h"
348#undef VAR 455 #undef VAR
349 456
350 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 457 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
351 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 458 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
352 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
353 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
354
355 if (c->irssv)
356 {
357 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
358 {
359 SvREFCNT_dec (c->irssv);
360 c->irssv = 0;
361 }
362 else
363 {
364 REPLACE_SV (PL_rs, c->irssv);
365 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
366 sv_setsv (c->irssv_sv, PL_rs);
367 }
368 }
369 459
370 { 460 {
371 dSP; 461 dSP;
462
372 CV *cv; 463 CV *cv;
373 464
374 /* now do the ugly restore mess */ 465 /* now do the ugly restore mess */
375 while ((cv = (CV *)POPs)) 466 while (expect_true (cv = (CV *)POPs))
376 { 467 {
377 put_padlist (aTHX_ cv); /* mark this padlist as available */ 468 put_padlist (aTHX_ cv); /* mark this padlist as available */
378 CvDEPTH (cv) = PTR2IV (POPs); 469 CvDEPTH (cv) = PTR2IV (POPs);
379 CvPADLIST (cv) = (AV *)POPs; 470 CvPADLIST (cv) = (AV *)POPs;
380 } 471 }
… …
395 /* 486 /*
396 * the worst thing you can imagine happens first - we have to save 487 * the worst thing you can imagine happens first - we have to save
397 * (and reinitialize) all cv's in the whole callchain :( 488 * (and reinitialize) all cv's in the whole callchain :(
398 */ 489 */
399 490
400 EXTEND (SP, 3 + 1);
401 PUSHs (Nullsv); 491 XPUSHs (Nullsv);
402 /* this loop was inspired by pp_caller */ 492 /* this loop was inspired by pp_caller */
403 for (;;) 493 for (;;)
404 { 494 {
405 while (cxix >= 0) 495 while (expect_true (cxix >= 0))
406 { 496 {
407 PERL_CONTEXT *cx = &ccstk[cxix--]; 497 PERL_CONTEXT *cx = &ccstk[cxix--];
408 498
409 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) 499 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
410 { 500 {
411 CV *cv = cx->blk_sub.cv; 501 CV *cv = cx->blk_sub.cv;
412 502
413 if (CvDEPTH (cv)) 503 if (expect_true (CvDEPTH (cv)))
414 { 504 {
415 EXTEND (SP, 3); 505 EXTEND (SP, 3);
416 PUSHs ((SV *)CvPADLIST (cv)); 506 PUSHs ((SV *)CvPADLIST (cv));
417 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 507 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
418 PUSHs ((SV *)cv); 508 PUSHs ((SV *)cv);
… …
421 get_padlist (aTHX_ cv); 511 get_padlist (aTHX_ cv);
422 } 512 }
423 } 513 }
424 } 514 }
425 515
426 if (top_si->si_type == PERLSI_MAIN) 516 if (expect_true (top_si->si_type == PERLSI_MAIN))
427 break; 517 break;
428 518
429 top_si = top_si->si_prev; 519 top_si = top_si->si_prev;
430 ccstk = top_si->si_cxstack; 520 ccstk = top_si->si_cxstack;
431 cxix = top_si->si_cxix; 521 cxix = top_si->si_cxix;
432 } 522 }
433 523
434 PUTBACK; 524 PUTBACK;
435 } 525 }
436 526
437 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 */
438 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 528 /* we manually unroll here, as usually 2 slots is enough */
439 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 529 if (SLOT_COUNT >= 1) CXINC;
440 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 530 if (SLOT_COUNT >= 2) CXINC;
441 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 */
442 538
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
443#define VAR(name,type)c->name = PL_ ## name; 549 #define VAR(name,type) slot->name = PL_ ## name;
444# include "state.h" 550 # include "state.h"
445#undef VAR 551 #undef VAR
552 }
446} 553}
447 554
448/* 555/*
449 * allocate various perl stacks. This is an exact copy 556 * allocate various perl stacks. This is an exact copy
450 * of perl.c:init_stacks, except that it uses less memory 557 * of perl.c:init_stacks, except that it uses less memory
… …
455# define coro_init_stacks init_stacks 562# define coro_init_stacks init_stacks
456#else 563#else
457static void 564static void
458coro_init_stacks (pTHX) 565coro_init_stacks (pTHX)
459{ 566{
460 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 567 PL_curstackinfo = new_stackinfo(32, 8);
461 PL_curstackinfo->si_type = PERLSI_MAIN; 568 PL_curstackinfo->si_type = PERLSI_MAIN;
462 PL_curstack = PL_curstackinfo->si_stack; 569 PL_curstack = PL_curstackinfo->si_stack;
463 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 570 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
464 571
465 PL_stack_base = AvARRAY(PL_curstack); 572 PL_stack_base = AvARRAY(PL_curstack);
466 PL_stack_sp = PL_stack_base; 573 PL_stack_sp = PL_stack_base;
467 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 574 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
468 575
469 New(50,PL_tmps_stack,128,SV*); 576 New(50,PL_tmps_stack,32,SV*);
470 PL_tmps_floor = -1; 577 PL_tmps_floor = -1;
471 PL_tmps_ix = -1; 578 PL_tmps_ix = -1;
472 PL_tmps_max = 128; 579 PL_tmps_max = 32;
473 580
474 New(54,PL_markstack,32,I32); 581 New(54,PL_markstack,16,I32);
475 PL_markstack_ptr = PL_markstack; 582 PL_markstack_ptr = PL_markstack;
476 PL_markstack_max = PL_markstack + 32; 583 PL_markstack_max = PL_markstack + 16;
477 584
478#ifdef SET_MARK_OFFSET 585#ifdef SET_MARK_OFFSET
479 SET_MARK_OFFSET; 586 SET_MARK_OFFSET;
480#endif 587#endif
481 588
482 New(54,PL_scopestack,32,I32); 589 New(54,PL_scopestack,8,I32);
483 PL_scopestack_ix = 0; 590 PL_scopestack_ix = 0;
484 PL_scopestack_max = 32; 591 PL_scopestack_max = 8;
485 592
486 New(54,PL_savestack,64,ANY); 593 New(54,PL_savestack,24,ANY);
487 PL_savestack_ix = 0; 594 PL_savestack_ix = 0;
488 PL_savestack_max = 64; 595 PL_savestack_max = 24;
489 596
490#if !PERL_VERSION_ATLEAST (5,9,0) 597#if !PERL_VERSION_ATLEAST (5,9,0)
491 New(54,PL_retstack,16,OP*); 598 New(54,PL_retstack,4,OP*);
492 PL_retstack_ix = 0; 599 PL_retstack_ix = 0;
493 PL_retstack_max = 16; 600 PL_retstack_max = 4;
494#endif 601#endif
495} 602}
496#endif 603#endif
497 604
498/* 605/*
499 * destroy the stacks, the callchain etc... 606 * destroy the stacks, the callchain etc...
500 */ 607 */
501static void 608static void
502coro_destroy_stacks (pTHX) 609coro_destroy_stacks (pTHX)
503{ 610{
504 if (!IN_DESTRUCT)
505 {
506 /* restore all saved variables and stuff */
507 LEAVE_SCOPE (0);
508 assert (PL_tmps_floor == -1);
509
510 /* free all temporaries */
511 FREETMPS;
512 assert (PL_tmps_ix == -1);
513
514 /* unwind all extra stacks */
515 POPSTACK_TO (PL_mainstack);
516
517 /* unwind main stack */
518 dounwind (-1);
519 }
520
521 while (PL_curstackinfo->si_next) 611 while (PL_curstackinfo->si_next)
522 PL_curstackinfo = PL_curstackinfo->si_next; 612 PL_curstackinfo = PL_curstackinfo->si_next;
523 613
524 while (PL_curstackinfo) 614 while (PL_curstackinfo)
525 { 615 {
… …
541 Safefree (PL_retstack); 631 Safefree (PL_retstack);
542#endif 632#endif
543} 633}
544 634
545static size_t 635static size_t
546coro_rss (struct coro *coro) 636coro_rss (pTHX_ struct coro *coro)
547{ 637{
548 size_t rss = sizeof (coro); 638 size_t rss = sizeof (*coro);
549 639
550 if (coro->mainstack) 640 if (coro->mainstack)
551 { 641 {
642 perl_slots tmp_slot;
643 perl_slots *slot;
644
552 if (coro->flags & CF_RUNNING) 645 if (coro->flags & CF_RUNNING)
553 { 646 {
647 slot = &tmp_slot;
648
554 #define VAR(name,type)coro->name = PL_ ## name; 649 #define VAR(name,type) slot->name = PL_ ## name;
555 # include "state.h" 650 # include "state.h"
556 #undef VAR 651 #undef VAR
557 } 652 }
653 else
654 slot = coro->slot;
558 655
559 rss += sizeof (coro->curstackinfo); 656 rss += sizeof (slot->curstackinfo);
560 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
561 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 657 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
562 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); 658 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
563 rss += coro->tmps_max * sizeof (SV *); 659 rss += slot->tmps_max * sizeof (SV *);
564 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); 660 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
565 rss += coro->scopestack_max * sizeof (I32); 661 rss += slot->scopestack_max * sizeof (I32);
566 rss += coro->savestack_max * sizeof (ANY); 662 rss += slot->savestack_max * sizeof (ANY);
567 663
568#if !PERL_VERSION_ATLEAST (5,9,0) 664#if !PERL_VERSION_ATLEAST (5,9,0)
569 rss += coro->retstack_max * sizeof (OP *); 665 rss += slot->retstack_max * sizeof (OP *);
570#endif 666#endif
571 } 667 }
572 668
573 return rss; 669 return rss;
574} 670}
575 671
576/** coroutine stack handling ************************************************/ 672/** coroutine stack handling ************************************************/
577 673
578static void 674static void
579setup_coro (pTHX_ struct coro *coro) 675coro_setup (pTHX_ struct coro *coro)
580{ 676{
581 /* 677 /*
582 * emulate part of the perl startup here. 678 * emulate part of the perl startup here.
583 */ 679 */
584 coro_init_stacks (aTHX); 680 coro_init_stacks (aTHX);
585 681
682 PL_runops = RUNOPS_DEFAULT;
586 PL_curcop = &PL_compiling; 683 PL_curcop = &PL_compiling;
587 PL_in_eval = EVAL_NULL; 684 PL_in_eval = EVAL_NULL;
588 PL_comppad = 0; 685 PL_comppad = 0;
589 PL_curpm = 0; 686 PL_curpm = 0;
687 PL_curpad = 0;
590 PL_localizing = 0; 688 PL_localizing = 0;
591 PL_dirty = 0; 689 PL_dirty = 0;
592 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);
593 700
594 { 701 {
595 dSP; 702 dSP;
596 LOGOP myop; 703 LOGOP myop;
597 704
598 SvREFCNT_dec (GvAV (PL_defgv));
599 GvAV (PL_defgv) = coro->args; coro->args = 0;
600
601 Zero (&myop, 1, LOGOP); 705 Zero (&myop, 1, LOGOP);
602 myop.op_next = Nullop; 706 myop.op_next = Nullop;
603 myop.op_flags = OPf_WANT_VOID; 707 myop.op_flags = OPf_WANT_VOID;
604 708
605 PUSHMARK (SP); 709 PUSHMARK (SP);
606 XPUSHs (av_shift (GvAV (PL_defgv))); 710 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
607 PUTBACK; 711 PUTBACK;
608 PL_op = (OP *)&myop; 712 PL_op = (OP *)&myop;
609 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 713 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
610 SPAGAIN; 714 SPAGAIN;
611 } 715 }
612 716
613 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);
614} 754}
615 755
616static void 756static void
617free_coro_mortal (pTHX) 757free_coro_mortal (pTHX)
618{ 758{
619 if (coro_mortal) 759 if (expect_true (coro_mortal))
620 { 760 {
621 SvREFCNT_dec (coro_mortal); 761 SvREFCNT_dec (coro_mortal);
622 coro_mortal = 0; 762 coro_mortal = 0;
623 } 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;
624} 888}
625 889
626/* 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 */
627/* _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 */
628/* during execution of a perl program */ 892/* during execution of a perl program */
629static void NOINLINE 893static void NOINLINE
630prepare_cctx (pTHX_ coro_cctx *cctx) 894cctx_prepare (pTHX_ coro_cctx *cctx)
631{ 895{
632 dSP; 896 dSP;
633 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;
634 903
635 Zero (&myop, 1, LOGOP); 904 Zero (&myop, 1, LOGOP);
636 myop.op_next = PL_op; 905 myop.op_next = PL_op;
637 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 906 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
638 907
… …
648 917
649/* 918/*
650 * this is a _very_ stripped down perl interpreter ;) 919 * this is a _very_ stripped down perl interpreter ;)
651 */ 920 */
652static void 921static void
653coro_run (void *arg) 922cctx_run (void *arg)
654{ 923{
655 dTHX; 924 dTHX;
656 925
657 /* coro_run is the alternative tail of transfer(), so unlock here. */ 926 /* cctx_run is the alternative tail of transfer(), so unlock here. */
658 UNLOCK; 927 UNLOCK;
659 928
660 PL_top_env = &PL_start_env; 929 /* we now skip the entersub that lead to transfer() */
930 PL_op = PL_op->op_next;
661 931
662 /* inject a fake subroutine call to cctx_init */ 932 /* inject a fake subroutine call to cctx_init */
663 prepare_cctx (aTHX_ (coro_cctx *)arg); 933 cctx_prepare (aTHX_ (coro_cctx *)arg);
664 934
665 /* 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 */
666 PL_restartop = PL_op; 936 PL_restartop = PL_op;
667 perl_run (PL_curinterp); 937 perl_run (PL_curinterp);
668 938
… …
683 coro_cctx *cctx; 953 coro_cctx *cctx;
684 void *stack_start; 954 void *stack_start;
685 size_t stack_size; 955 size_t stack_size;
686 956
687 ++cctx_count; 957 ++cctx_count;
958 fprintf (stderr, "bp1\n");//D
688 959
689 Newz (0, cctx, 1, coro_cctx); 960 Newz (0, cctx, 1, coro_cctx);
690 961
691#if HAVE_MMAP 962#if HAVE_MMAP
692
693 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 963 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
694 /* mmap supposedly does allocate-on-write for us */ 964 /* mmap supposedly does allocate-on-write for us */
695 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 965 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
696 966
697 if (cctx->sptr != (void *)-1) 967 if (cctx->sptr != (void *)-1)
… …
699# if CORO_STACKGUARD 969# if CORO_STACKGUARD
700 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 970 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
701# endif 971# endif
702 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 972 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
703 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 973 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
704 cctx->mapped = 1; 974 cctx->flags |= CC_MAPPED;
705 } 975 }
706 else 976 else
707#endif 977#endif
708 { 978 {
709 cctx->ssize = coro_stacksize * (long)sizeof (long); 979 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
718 stack_start = cctx->sptr; 988 stack_start = cctx->sptr;
719 stack_size = cctx->ssize; 989 stack_size = cctx->ssize;
720 } 990 }
721 991
722 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 992 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
723 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 993 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
724 994
725 return cctx; 995 return cctx;
726} 996}
727 997
728static void 998static void
… …
736#if CORO_USE_VALGRIND 1006#if CORO_USE_VALGRIND
737 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1007 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
738#endif 1008#endif
739 1009
740#if HAVE_MMAP 1010#if HAVE_MMAP
741 if (cctx->mapped) 1011 if (cctx->flags & CC_MAPPED)
742 munmap (cctx->sptr, cctx->ssize); 1012 munmap (cctx->sptr, cctx->ssize);
743 else 1013 else
744#endif 1014#endif
745 Safefree (cctx->sptr); 1015 Safefree (cctx->sptr);
746 1016
747 Safefree (cctx); 1017 Safefree (cctx);
748} 1018}
749 1019
1020/* wether this cctx should be destructed */
1021#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1022
750static coro_cctx * 1023static coro_cctx *
751cctx_get (pTHX) 1024cctx_get (pTHX)
752{ 1025{
753 while (cctx_first) 1026 while (expect_true (cctx_first))
754 { 1027 {
755 coro_cctx *cctx = cctx_first; 1028 coro_cctx *cctx = cctx_first;
756 cctx_first = cctx->next; 1029 cctx_first = cctx->next;
757 --cctx_idle; 1030 --cctx_idle;
758 1031
759 if (cctx->ssize >= coro_stacksize) 1032 if (expect_true (!CCTX_EXPIRED (cctx)))
760 return cctx; 1033 return cctx;
761 1034
762 cctx_destroy (cctx); 1035 cctx_destroy (cctx);
763 } 1036 }
764 1037
765 PL_op = PL_op->op_next;
766 return cctx_new (); 1038 return cctx_new ();
767} 1039}
768 1040
769static void 1041static void
770cctx_put (coro_cctx *cctx) 1042cctx_put (coro_cctx *cctx)
771{ 1043{
772 /* free another cctx if overlimit */ 1044 /* free another cctx if overlimit */
773 if (cctx_idle >= MAX_IDLE_CCTX) 1045 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
774 { 1046 {
775 coro_cctx *first = cctx_first; 1047 coro_cctx *first = cctx_first;
776 cctx_first = first->next; 1048 cctx_first = first->next;
777 --cctx_idle; 1049 --cctx_idle;
778 1050
779 assert (!first->inuse);
780 cctx_destroy (first); 1051 cctx_destroy (first);
781 } 1052 }
782 1053
783 ++cctx_idle; 1054 ++cctx_idle;
784 cctx->next = cctx_first; 1055 cctx->next = cctx_first;
785 cctx_first = cctx; 1056 cctx_first = cctx;
786} 1057}
787 1058
788/** coroutine switching *****************************************************/ 1059/** coroutine switching *****************************************************/
789 1060
790/* never call directly, always through the coro_state_transfer global variable */ 1061static void
1062transfer_check (pTHX_ struct coro *prev, struct coro *next)
1063{
1064 if (expect_true (prev != next))
1065 {
1066 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1067 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
1068
1069 if (expect_false (next->flags & CF_RUNNING))
1070 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1071
1072 if (expect_false (next->flags & CF_DESTROYED))
1073 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1074
1075 if (
1076#if PERL_VERSION_ATLEAST (5,9,0)
1077 expect_false (PL_parser)
1078#else
1079 expect_false (PL_lex_state != LEX_NOTPARSING)
1080#endif
1081 )
1082 croak ("Coro::State::transfer called while parsing, but this is not supported");
1083 }
1084}
1085
1086/* always use the TRANSFER macro */
791static void NOINLINE 1087static void NOINLINE
792transfer (pTHX_ struct coro *prev, struct coro *next) 1088transfer (pTHX_ struct coro *prev, struct coro *next)
793{ 1089{
794 dSTACKLEVEL; 1090 dSTACKLEVEL;
795 1091
796 /* sometimes transfer is only called to set idle_sp */ 1092 /* sometimes transfer is only called to set idle_sp */
797 if (!next) 1093 if (expect_false (!next))
798 { 1094 {
799 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1095 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
800 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1096 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
801 } 1097 }
802 else if (prev != next) 1098 else if (expect_true (prev != next))
803 { 1099 {
804 coro_cctx *prev__cctx; 1100 coro_cctx *prev__cctx;
805 1101
806 if (prev->flags & CF_NEW) 1102 if (expect_false (prev->flags & CF_NEW))
807 { 1103 {
808 /* create a new empty context */ 1104 /* create a new empty context */
809 Newz (0, prev->cctx, 1, coro_cctx); 1105 Newz (0, prev->cctx, 1, coro_cctx);
810 prev->cctx->inuse = 1;
811 prev->flags &= ~CF_NEW; 1106 prev->flags &= ~CF_NEW;
812 prev->flags |= CF_RUNNING; 1107 prev->flags |= CF_RUNNING;
813 } 1108 }
814 1109
815 /*TODO: must not croak here */
816 if (!prev->flags & CF_RUNNING)
817 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
818
819 if (next->flags & CF_RUNNING)
820 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
821
822 if (next->flags & CF_DESTROYED)
823 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
824
825 prev->flags &= ~CF_RUNNING; 1110 prev->flags &= ~CF_RUNNING;
826 next->flags |= CF_RUNNING; 1111 next->flags |= CF_RUNNING;
827 1112
828 LOCK; 1113 LOCK;
829 1114
830 if (next->flags & CF_NEW) 1115 if (expect_false (next->flags & CF_NEW))
831 { 1116 {
832 /* need to start coroutine */ 1117 /* need to start coroutine */
833 next->flags &= ~CF_NEW; 1118 next->flags &= ~CF_NEW;
834 /* first get rid of the old state */ 1119 /* first get rid of the old state */
835 save_perl (aTHX_ prev); 1120 save_perl (aTHX_ prev);
836 /* setup coroutine call */ 1121 /* setup coroutine call */
837 setup_coro (aTHX_ next); 1122 coro_setup (aTHX_ next);
838 /* need a new stack */
839 assert (!next->cctx);
840 } 1123 }
841 else 1124 else
842 { 1125 {
843 /* coroutine already started */ 1126 /* coroutine already started */
844 save_perl (aTHX_ prev); 1127 save_perl (aTHX_ prev);
… …
846 } 1129 }
847 1130
848 prev__cctx = prev->cctx; 1131 prev__cctx = prev->cctx;
849 1132
850 /* possibly "free" the cctx */ 1133 /* possibly "free" the cctx */
851 if (prev__cctx->idle_sp == STACKLEVEL) 1134 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
852 { 1135 {
853 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1136 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
854 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1137 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
855 1138
856 prev->cctx = 0; 1139 prev->cctx = 0;
857 1140
1141 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1142 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1143 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1144 if (!next->cctx)
1145 next->cctx = cctx_get (aTHX);
1146
858 cctx_put (prev__cctx); 1147 cctx_put (prev__cctx);
859 prev__cctx->inuse = 0;
860 } 1148 }
861 1149
1150 ++next->usecount;
1151
862 if (!next->cctx) 1152 if (expect_true (!next->cctx))
863 {
864 next->cctx = cctx_get (aTHX); 1153 next->cctx = cctx_get (aTHX);
865 assert (!next->cctx->inuse);
866 next->cctx->inuse = 1;
867 }
868 1154
869 if (prev__cctx != next->cctx) 1155 if (expect_false (prev__cctx != next->cctx))
870 { 1156 {
871 prev__cctx->top_env = PL_top_env; 1157 prev__cctx->top_env = PL_top_env;
872 PL_top_env = next->cctx->top_env; 1158 PL_top_env = next->cctx->top_env;
873 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1159 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
874 } 1160 }
875 1161
876 free_coro_mortal (aTHX); 1162 free_coro_mortal (aTHX);
877 UNLOCK; 1163 UNLOCK;
1164
1165 if (expect_false (prev->throw || next->throw))
1166 {
1167 struct coro *coro = SvSTATE (coro_current);
1168
1169 if (coro->throw)
1170 {
1171 SV *exception = coro->throw;
1172 coro->throw = 0;
1173 sv_setsv (ERRSV, exception);
1174 croak (0);
1175 }
1176 }
878 } 1177 }
879} 1178}
880 1179
881struct transfer_args 1180struct transfer_args
882{ 1181{
883 struct coro *prev, *next; 1182 struct coro *prev, *next;
884}; 1183};
885 1184
886#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1185#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1186#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
887 1187
888/** high level stuff ********************************************************/ 1188/** high level stuff ********************************************************/
889 1189
890static int 1190static int
891coro_state_destroy (pTHX_ struct coro *coro) 1191coro_state_destroy (pTHX_ struct coro *coro)
… …
908 1208
909 if (coro->mainstack && coro->mainstack != main_mainstack) 1209 if (coro->mainstack && coro->mainstack != main_mainstack)
910 { 1210 {
911 struct coro temp; 1211 struct coro temp;
912 1212
913 assert (!(coro->flags & CF_RUNNING));
914
915 Zero (&temp, 1, struct coro);
916 temp.save = CORO_SAVE_ALL;
917
918 if (coro->flags & CF_RUNNING) 1213 if (coro->flags & CF_RUNNING)
919 croak ("FATAL: tried to destroy currently running coroutine"); 1214 croak ("FATAL: tried to destroy currently running coroutine");
920 1215
921 save_perl (aTHX_ &temp); 1216 save_perl (aTHX_ &temp);
922 load_perl (aTHX_ coro); 1217 load_perl (aTHX_ coro);
923 1218
924 coro_destroy_stacks (aTHX); 1219 coro_destroy (aTHX_ coro);
925 1220
926 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1221 load_perl (aTHX_ &temp);
927 1222
928 coro->mainstack = 0; 1223 coro->slot = 0;
929 } 1224 }
930 1225
931 cctx_destroy (coro->cctx); 1226 cctx_destroy (coro->cctx);
932 SvREFCNT_dec (coro->args); 1227 SvREFCNT_dec (coro->args);
933 1228
… …
974#else 1269#else
975# define MGf_DUP 0 1270# define MGf_DUP 0
976#endif 1271#endif
977}; 1272};
978 1273
979static struct coro *
980SvSTATE_ (pTHX_ SV *coro)
981{
982 HV *stash;
983 MAGIC *mg;
984
985 if (SvROK (coro))
986 coro = SvRV (coro);
987
988 stash = SvSTASH (coro);
989 if (stash != coro_stash && stash != coro_state_stash)
990 {
991 /* very slow, but rare, check */
992 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
993 croak ("Coro::State object required");
994 }
995
996 mg = CORO_MAGIC (coro);
997 return (struct coro *)mg->mg_ptr;
998}
999
1000#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
1001
1002static void 1274static void
1003prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1275prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
1004{ 1276{
1005 ta->prev = SvSTATE (prev_sv); 1277 ta->prev = SvSTATE (prev_sv);
1006 ta->next = SvSTATE (next_sv); 1278 ta->next = SvSTATE (next_sv);
1279 TRANSFER_CHECK (*ta);
1007} 1280}
1008 1281
1009static void 1282static void
1010api_transfer (SV *prev_sv, SV *next_sv) 1283api_transfer (SV *prev_sv, SV *next_sv)
1011{ 1284{
1012 dTHX; 1285 dTHX;
1013 struct transfer_args ta; 1286 struct transfer_args ta;
1014 1287
1015 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1288 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1016 TRANSFER (ta); 1289 TRANSFER (ta);
1017}
1018
1019static int
1020api_save (SV *coro_sv, int new_save)
1021{
1022 dTHX;
1023 struct coro *coro = SvSTATE (coro_sv);
1024 int old_save = coro->save;
1025
1026 if (new_save >= 0)
1027 coro->save = new_save;
1028
1029 return old_save;
1030} 1290}
1031 1291
1032/** Coro ********************************************************************/ 1292/** Coro ********************************************************************/
1033 1293
1034static void 1294static void
… …
1093 { 1353 {
1094 LOCK; 1354 LOCK;
1095 next_sv = coro_deq (aTHX_ PRIO_MIN); 1355 next_sv = coro_deq (aTHX_ PRIO_MIN);
1096 1356
1097 /* nothing to schedule: call the idle handler */ 1357 /* nothing to schedule: call the idle handler */
1098 if (!next_sv) 1358 if (expect_false (!next_sv))
1099 { 1359 {
1100 dSP; 1360 dSP;
1101 UNLOCK; 1361 UNLOCK;
1102 1362
1103 ENTER; 1363 ENTER;
… …
1113 } 1373 }
1114 1374
1115 ta->next = SvSTATE (next_sv); 1375 ta->next = SvSTATE (next_sv);
1116 1376
1117 /* cannot transfer to destroyed coros, skip and look for next */ 1377 /* cannot transfer to destroyed coros, skip and look for next */
1118 if (ta->next->flags & CF_DESTROYED) 1378 if (expect_false (ta->next->flags & CF_DESTROYED))
1119 { 1379 {
1120 UNLOCK; 1380 UNLOCK;
1121 SvREFCNT_dec (next_sv); 1381 SvREFCNT_dec (next_sv);
1122 /* coro_nready is already taken care of by destroy */ 1382 /* coro_nready is already taken care of by destroy */
1123 continue; 1383 continue;
… …
1128 break; 1388 break;
1129 } 1389 }
1130 1390
1131 /* free this only after the transfer */ 1391 /* free this only after the transfer */
1132 prev_sv = SvRV (coro_current); 1392 prev_sv = SvRV (coro_current);
1133 SvRV_set (coro_current, next_sv);
1134 ta->prev = SvSTATE (prev_sv); 1393 ta->prev = SvSTATE (prev_sv);
1135 1394 TRANSFER_CHECK (*ta);
1136 assert (ta->next->flags & CF_READY); 1395 assert (ta->next->flags & CF_READY);
1137 ta->next->flags &= ~CF_READY; 1396 ta->next->flags &= ~CF_READY;
1397 SvRV_set (coro_current, next_sv);
1138 1398
1139 LOCK; 1399 LOCK;
1140 free_coro_mortal (aTHX); 1400 free_coro_mortal (aTHX);
1141 coro_mortal = prev_sv; 1401 coro_mortal = prev_sv;
1142 UNLOCK; 1402 UNLOCK;
… …
1179 dTHX; 1439 dTHX;
1180 struct transfer_args ta; 1440 struct transfer_args ta;
1181 1441
1182 prepare_cede (aTHX_ &ta); 1442 prepare_cede (aTHX_ &ta);
1183 1443
1184 if (ta.prev != ta.next) 1444 if (expect_true (ta.prev != ta.next))
1185 { 1445 {
1186 TRANSFER (ta); 1446 TRANSFER (ta);
1187 return 1; 1447 return 1;
1188 } 1448 }
1189 else 1449 else
… …
1203 } 1463 }
1204 else 1464 else
1205 return 0; 1465 return 0;
1206} 1466}
1207 1467
1468static void
1469api_trace (SV *coro_sv, int flags)
1470{
1471 dTHX;
1472 struct coro *coro = SvSTATE (coro_sv);
1473
1474 if (flags & CC_TRACE)
1475 {
1476 if (!coro->cctx)
1477 coro->cctx = cctx_new ();
1478 else if (!(coro->cctx->flags & CC_TRACE))
1479 croak ("cannot enable tracing on coroutine with custom stack");
1480
1481 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1482 }
1483 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1484 {
1485 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1486
1487 if (coro->flags & CF_RUNNING)
1488 PL_runops = RUNOPS_DEFAULT;
1489 else
1490 coro->slot->runops = RUNOPS_DEFAULT;
1491 }
1492}
1493
1208MODULE = Coro::State PACKAGE = Coro::State 1494MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1209 1495
1210PROTOTYPES: DISABLE 1496PROTOTYPES: DISABLE
1211 1497
1212BOOT: 1498BOOT:
1213{ 1499{
1214#ifdef USE_ITHREADS 1500#ifdef USE_ITHREADS
1215 MUTEX_INIT (&coro_mutex); 1501 MUTEX_INIT (&coro_mutex);
1216#endif 1502#endif
1217 BOOT_PAGESIZE; 1503 BOOT_PAGESIZE;
1218 1504
1505 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1506 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1507
1508 hv_sig = coro_get_hv ("SIG", TRUE);
1509 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1510 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1511
1512 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1513 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1514
1219 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1515 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1220 1516
1221 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1517 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1222 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1518 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1223 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1224 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1225 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1226 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1519 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1227 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1520 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1228 1521
1229 main_mainstack = PL_mainstack; 1522 main_mainstack = PL_mainstack;
1230 main_top_env = PL_top_env; 1523 main_top_env = PL_top_env;
1231 1524
1232 while (main_top_env->je_prev) 1525 while (main_top_env->je_prev)
… …
1245 struct coro *coro; 1538 struct coro *coro;
1246 HV *hv; 1539 HV *hv;
1247 int i; 1540 int i;
1248 1541
1249 Newz (0, coro, 1, struct coro); 1542 Newz (0, coro, 1, struct coro);
1250 coro->args = newAV (); 1543 coro->args = newAV ();
1251 coro->save = CORO_SAVE_DEF;
1252 coro->flags = CF_NEW; 1544 coro->flags = CF_NEW;
1253 1545
1254 if (coro_first) coro_first->prev = coro; 1546 if (coro_first) coro_first->prev = coro;
1255 coro->next = coro_first; 1547 coro->next = coro_first;
1256 coro_first = coro; 1548 coro_first = coro;
1257 1549
1258 coro->hv = hv = newHV (); 1550 coro->hv = hv = newHV ();
1259 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1551 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1260 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1552 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1261 1553
1554 av_extend (coro->args, items - 1);
1262 for (i = 1; i < items; i++) 1555 for (i = 1; i < items; i++)
1263 av_push (coro->args, newSVsv (ST (i))); 1556 av_push (coro->args, newSVsv (ST (i)));
1264} 1557}
1265 OUTPUT: 1558 OUTPUT:
1266 RETVAL 1559 RETVAL
1267 1560
1268int 1561# these not obviously related functions are all rolled into the same xs
1269save (SV *coro, int new_save = -1) 1562# function to increase chances that they all will call transfer with the same
1270 CODE: 1563# stack offset
1271 RETVAL = api_save (coro, new_save);
1272 OUTPUT:
1273 RETVAL
1274
1275int
1276save_also (SV *coro_sv, int save_also)
1277 CODE:
1278{
1279 struct coro *coro = SvSTATE (coro_sv);
1280 RETVAL = coro->save;
1281 coro->save |= save_also;
1282}
1283 OUTPUT:
1284 RETVAL
1285
1286void 1564void
1287_set_stacklevel (...) 1565_set_stacklevel (...)
1288 ALIAS: 1566 ALIAS:
1289 Coro::State::transfer = 1 1567 Coro::State::transfer = 1
1290 Coro::schedule = 2 1568 Coro::schedule = 2
… …
1324 } 1602 }
1325 1603
1326 BARRIER; 1604 BARRIER;
1327 TRANSFER (ta); 1605 TRANSFER (ta);
1328 1606
1329 if (GIMME_V != G_VOID && ta.next != ta.prev) 1607 if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev))
1330 XSRETURN_YES; 1608 XSRETURN_YES;
1331} 1609}
1332 1610
1333bool 1611bool
1334_destroy (SV *coro_sv) 1612_destroy (SV *coro_sv)
… …
1376 if (coro->hv) 1654 if (coro->hv)
1377 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); 1655 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1378} 1656}
1379 1657
1380void 1658void
1381_eval (Coro::State coro, SV *coderef) 1659call (Coro::State coro, SV *coderef)
1660 ALIAS:
1661 eval = 1
1382 CODE: 1662 CODE:
1383{ 1663{
1384 if (coro->mainstack) 1664 if (coro->mainstack)
1385 { 1665 {
1386 struct coro temp; 1666 struct coro temp;
1387 Zero (&temp, 1, struct coro);
1388 temp.save = CORO_SAVE_ALL;
1389 1667
1390 if (!(coro->flags & CF_RUNNING)) 1668 if (!(coro->flags & CF_RUNNING))
1391 { 1669 {
1392 save_perl (aTHX_ &temp); 1670 save_perl (aTHX_ &temp);
1393 load_perl (aTHX_ coro); 1671 load_perl (aTHX_ coro);
… …
1397 dSP; 1675 dSP;
1398 ENTER; 1676 ENTER;
1399 SAVETMPS; 1677 SAVETMPS;
1400 PUSHMARK (SP); 1678 PUSHMARK (SP);
1401 PUTBACK; 1679 PUTBACK;
1680
1681 if (ix)
1682 eval_sv (coderef, 0);
1683 else
1402 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1684 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1685
1403 SPAGAIN; 1686 SPAGAIN;
1404 FREETMPS; 1687 FREETMPS;
1405 LEAVE; 1688 LEAVE;
1406 PUTBACK; 1689 PUTBACK;
1407 } 1690 }
… …
1411 save_perl (aTHX_ coro); 1694 save_perl (aTHX_ coro);
1412 load_perl (aTHX_ &temp); 1695 load_perl (aTHX_ &temp);
1413 } 1696 }
1414 } 1697 }
1415} 1698}
1416 1699
1417SV * 1700SV *
1418is_ready (Coro::State coro) 1701is_ready (Coro::State coro)
1419 PROTOTYPE: $ 1702 PROTOTYPE: $
1420 ALIAS: 1703 ALIAS:
1421 is_ready = CF_READY 1704 is_ready = CF_READY
… …
1425 CODE: 1708 CODE:
1426 RETVAL = boolSV (coro->flags & ix); 1709 RETVAL = boolSV (coro->flags & ix);
1427 OUTPUT: 1710 OUTPUT:
1428 RETVAL 1711 RETVAL
1429 1712
1713void
1714api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1715
1716SV *
1717has_stack (Coro::State coro)
1718 PROTOTYPE: $
1719 CODE:
1720 RETVAL = boolSV (!!coro->cctx);
1721 OUTPUT:
1722 RETVAL
1723
1724int
1725is_traced (Coro::State coro)
1726 PROTOTYPE: $
1727 CODE:
1728 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1729 OUTPUT:
1730 RETVAL
1731
1430IV 1732IV
1431rss (Coro::State coro) 1733rss (Coro::State coro)
1432 PROTOTYPE: $ 1734 PROTOTYPE: $
1735 ALIAS:
1736 usecount = 1
1433 CODE: 1737 CODE:
1434 RETVAL = coro_rss (coro); 1738 switch (ix)
1739 {
1740 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1741 case 1: RETVAL = coro->usecount; break;
1742 }
1435 OUTPUT: 1743 OUTPUT:
1436 RETVAL 1744 RETVAL
1437 1745
1438 1746
1439MODULE = Coro::State PACKAGE = Coro 1747MODULE = Coro::State PACKAGE = Coro
1440 1748
1441BOOT: 1749BOOT:
1442{ 1750{
1443 int i; 1751 int i;
1444 1752
1753 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1754 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1755 av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1756
1757 coro_current = coro_get_sv ("Coro::current", FALSE);
1758 SvREADONLY_on (coro_current);
1759
1445 coro_stash = gv_stashpv ("Coro", TRUE); 1760 coro_stash = gv_stashpv ("Coro", TRUE);
1446 1761
1447 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1762 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1448 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1763 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1449 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1764 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1450 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1765 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1451 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1766 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1452 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1767 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1453 1768
1454 coro_current = get_sv ("Coro::current", FALSE);
1455 SvREADONLY_on (coro_current);
1456
1457 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1769 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1458 coro_ready[i] = newAV (); 1770 coro_ready[i] = newAV ();
1459 1771
1460 { 1772 {
1461 SV *sv = perl_get_sv("Coro::API", 1); 1773 SV *sv = perl_get_sv ("Coro::API", TRUE);
1774 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1462 1775
1463 coroapi.schedule = api_schedule; 1776 coroapi.schedule = api_schedule;
1464 coroapi.save = api_save;
1465 coroapi.cede = api_cede; 1777 coroapi.cede = api_cede;
1466 coroapi.cede_notself = api_cede_notself; 1778 coroapi.cede_notself = api_cede_notself;
1467 coroapi.ready = api_ready; 1779 coroapi.ready = api_ready;
1468 coroapi.is_ready = api_is_ready; 1780 coroapi.is_ready = api_is_ready;
1469 coroapi.nready = &coro_nready; 1781 coroapi.nready = &coro_nready;
… …
1518 CODE: 1830 CODE:
1519 RETVAL = coro_nready; 1831 RETVAL = coro_nready;
1520 OUTPUT: 1832 OUTPUT:
1521 RETVAL 1833 RETVAL
1522 1834
1835void
1836throw (Coro::State self, SV *throw = &PL_sv_undef)
1837 PROTOTYPE: $;$
1838 CODE:
1839 SvREFCNT_dec (self->throw);
1840 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1841
1842# for async_pool speedup
1843void
1844_pool_1 (SV *cb)
1845 CODE:
1846{
1847 struct coro *coro = SvSTATE (coro_current);
1848 HV *hv = (HV *)SvRV (coro_current);
1849 AV *defav = GvAV (PL_defgv);
1850 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1851 AV *invoke_av;
1852 int i, len;
1853
1854 if (!invoke)
1855 croak ("\3async_pool terminate\2\n");
1856
1857 SvREFCNT_dec (coro->saved_deffh);
1858 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1859
1860 hv_store (hv, "desc", sizeof ("desc") - 1,
1861 newSVpvn (strpair ("[async_pool]")), 0);
1862
1863 invoke_av = (AV *)SvRV (invoke);
1864 len = av_len (invoke_av);
1865
1866 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1867
1868 if (len > 0)
1869 {
1870 av_fill (defav, len - 1);
1871 for (i = 0; i < len; ++i)
1872 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1873 }
1874
1875 SvREFCNT_dec (invoke);
1876}
1877
1878void
1879_pool_2 (SV *cb)
1880 CODE:
1881{
1882 struct coro *coro = SvSTATE (coro_current);
1883
1884 sv_setsv (cb, &PL_sv_undef);
1885
1886 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1887 coro->saved_deffh = 0;
1888
1889 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1890 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1891 croak ("\3async_pool terminate\2\n");
1892
1893 av_clear (GvAV (PL_defgv));
1894 hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1895 newSVpvn (strpair ("[async_pool idle]")), 0);
1896
1897 coro->prio = 0;
1898
1899 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1900 api_trace (coro_current, 0);
1901
1902 av_push (av_async_pool, newSVsv (coro_current));
1903}
1904
1905
1523MODULE = Coro::State PACKAGE = Coro::AIO 1906MODULE = Coro::State PACKAGE = Coro::AIO
1524 1907
1525SV * 1908SV *
1526_get_state () 1909_get_state ()
1527 CODE: 1910 CODE:

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