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Comparing Coro/Coro/State.xs (file contents):
Revision 1.148 by root, Fri Apr 13 12:56:55 2007 UTC vs.
Revision 1.210 by root, Wed Oct 10 03:24:40 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
9#include "patchlevel.h" 10#include "patchlevel.h"
10 11
11#include <stdio.h> 12#include <stdio.h>
12#include <errno.h> 13#include <errno.h>
13#include <assert.h> 14#include <assert.h>
15#include <inttypes.h> /* portable stdint.h */
14 16
15#ifdef HAVE_MMAP 17#ifdef HAVE_MMAP
16# include <unistd.h> 18# include <unistd.h>
17# include <sys/mman.h> 19# include <sys/mman.h>
18# ifndef MAP_ANONYMOUS 20# ifndef MAP_ANONYMOUS
… …
75/* 5.8.7 */ 77/* 5.8.7 */
76#ifndef SvRV_set 78#ifndef SvRV_set
77# define SvRV_set(s,v) SvRV(s) = (v) 79# define SvRV_set(s,v) SvRV(s) = (v)
78#endif 80#endif
79 81
82/* 5.8.8 */
83#ifndef GV_NOTQUAL
84# define GV_NOTQUAL 0
85#endif
86#ifndef newSV
87# define newSV(l) NEWSV(0,l)
88#endif
89
80#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 90#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
81# undef CORO_STACKGUARD 91# undef CORO_STACKGUARD
82#endif 92#endif
83 93
84#ifndef CORO_STACKGUARD 94#ifndef CORO_STACKGUARD
… …
88/* prefer perl internal functions over our own? */ 98/* prefer perl internal functions over our own? */
89#ifndef CORO_PREFER_PERL_FUNCTIONS 99#ifndef CORO_PREFER_PERL_FUNCTIONS
90# define CORO_PREFER_PERL_FUNCTIONS 0 100# define CORO_PREFER_PERL_FUNCTIONS 0
91#endif 101#endif
92 102
93/* The next macro should declare a variable stacklevel that contains and approximation 103/* 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 104 * portable way as possible. */
95 * and should be unique. */
96#define dSTACKLEVEL int stacklevel 105#define dSTACKLEVEL volatile char stacklevel
97#define STACKLEVEL ((void *)&stacklevel) 106#define STACKLEVEL ((void *)&stacklevel)
98 107
99#define IN_DESTRUCT (PL_main_cv == Nullcv) 108#define IN_DESTRUCT (PL_main_cv == Nullcv)
100 109
101#if __GNUC__ >= 3 110#if __GNUC__ >= 3
102# define attribute(x) __attribute__(x) 111# define attribute(x) __attribute__(x)
103# define BARRIER __asm__ __volatile__ ("" : : : "memory") 112# define BARRIER __asm__ __volatile__ ("" : : : "memory")
113# define expect(expr,value) __builtin_expect ((expr),(value))
104#else 114#else
105# define attribute(x) 115# define attribute(x)
106# define BARRIER 116# define BARRIER
117# define expect(expr,value) (expr)
107#endif 118#endif
119
120#define expect_false(expr) expect ((expr) != 0, 0)
121#define expect_true(expr) expect ((expr) != 0, 1)
108 122
109#define NOINLINE attribute ((noinline)) 123#define NOINLINE attribute ((noinline))
110 124
111#include "CoroAPI.h" 125#include "CoroAPI.h"
112 126
… …
117#else 131#else
118# define LOCK (void)0 132# define LOCK (void)0
119# define UNLOCK (void)0 133# define UNLOCK (void)0
120#endif 134#endif
121 135
136#define strpair(const) const, sizeof (const) - 1
137
122/* helper storage struct for Coro::AIO */ 138/* helper storage struct for Coro::AIO */
123struct io_state 139struct io_state
124{ 140{
125 int errorno; 141 int errorno;
126 I32 laststype; 142 I32 laststype;
… …
133static AV *main_mainstack; /* used to differentiate between $main and others */ 149static AV *main_mainstack; /* used to differentiate between $main and others */
134static JMPENV *main_top_env; 150static JMPENV *main_top_env;
135static HV *coro_state_stash, *coro_stash; 151static HV *coro_state_stash, *coro_stash;
136static SV *coro_mortal; /* will be freed after next transfer */ 152static SV *coro_mortal; /* will be freed after next transfer */
137 153
138static struct coro_cctx *cctx_first; 154static GV *irsgv; /* $/ */
155static GV *stdoutgv; /* *STDOUT */
156
157static HV *hv_sig; /* %SIG */
158static SV *sv_diehook;
159static SV *sv_warnhook;
160
161/* async_pool helper stuff */
162static SV *sv_pool_rss;
163static SV *sv_pool_size;
164static AV *av_async_pool;
165
166static struct coro_cctx *cctx_first[3]; /* index by GIMME_V type, void, scalar, array */
139static int cctx_count, cctx_idle; 167static int cctx_count, cctx_idle[3];
168
169enum {
170 CC_MAPPED = 0x01,
171 CC_NOREUSE = 0x02, /* throw this away after tracing */
172 CC_TRACE = 0x04,
173 CC_TRACE_SUB = 0x08, /* trace sub calls */
174 CC_TRACE_LINE = 0x10, /* trace each statement */
175 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
176};
140 177
141/* this is a structure representing a c-level coroutine */ 178/* this is a structure representing a c-level coroutine */
142typedef struct coro_cctx { 179typedef struct coro_cctx {
143 struct coro_cctx *next; 180 struct coro_cctx *next;
144 181
… …
153 coro_context cctx; 190 coro_context cctx;
154 191
155#if CORO_USE_VALGRIND 192#if CORO_USE_VALGRIND
156 int valgrind_id; 193 int valgrind_id;
157#endif 194#endif
158 char inuse, mapped; 195 unsigned char flags;
159} coro_cctx; 196} coro_cctx;
160 197
161enum { 198enum {
162 CF_RUNNING = 0x0001, /* coroutine is running */ 199 CF_RUNNING = 0x0001, /* coroutine is running */
163 CF_READY = 0x0002, /* coroutine is ready */ 200 CF_READY = 0x0002, /* coroutine is ready */
164 CF_NEW = 0x0004, /* has never been switched to */ 201 CF_NEW = 0x0004, /* has never been switched to */
165 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 202 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
166}; 203};
167 204
205/* the structure where most of the perl state is stored, overlaid on the cxstack */
206typedef struct {
207 SV *defsv;
208 AV *defav;
209 SV *errsv;
210 SV *irsgv;
211#define VAR(name,type) type name;
212# include "state.h"
213#undef VAR
214} perl_slots;
215
216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
217
168/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
169struct coro { 219struct coro {
170 /* the c coroutine allocated to this perl coroutine, if any */ 220 /* the c coroutine allocated to this perl coroutine, if any */
171 coro_cctx *cctx; 221 coro_cctx *cctx;
222 int gimme;
172 223
224 /* process data */
225 AV *mainstack;
226 perl_slots *slot; /* basically the saved sp */
227
173 /* data associated with this coroutine (initial args) */ 228 AV *args; /* data associated with this coroutine (initial args) */
174 AV *args; 229 int refcnt; /* coroutines are refcounted, yes */
175 int refcnt;
176 int save; /* CORO_SAVE flags */
177 int flags; /* CF_ flags */ 230 int flags; /* CF_ flags */
231 HV *hv; /* the perl hash associated with this coro, if any */
178 232
179 /* optionally saved, might be zero */ 233 /* statistics */
180 AV *defav; /* @_ */ 234 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
190 235
191 /* coro process data */ 236 /* coro process data */
192 int prio; 237 int prio;
238 SV *throw; /* exception to be thrown */
239
240 /* async_pool */
241 SV *saved_deffh;
242
243 /* linked list */
244 struct coro *next, *prev;
193}; 245};
194 246
195typedef struct coro *Coro__State; 247typedef struct coro *Coro__State;
196typedef struct coro *Coro__State_or_hashref; 248typedef struct coro *Coro__State_or_hashref;
197 249
… …
206 258
207/* for Coro.pm */ 259/* for Coro.pm */
208static SV *coro_current; 260static SV *coro_current;
209static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 261static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210static int coro_nready; 262static int coro_nready;
263static struct coro *coro_first;
211 264
212/** lowlevel stuff **********************************************************/ 265/** lowlevel stuff **********************************************************/
266
267static SV *
268coro_get_sv (const char *name, int create)
269{
270#if PERL_VERSION_ATLEAST (5,9,0)
271 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
272 get_sv (name, create);
273#endif
274 return get_sv (name, create);
275}
276
277static AV *
278coro_get_av (const char *name, int create)
279{
280#if PERL_VERSION_ATLEAST (5,9,0)
281 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
282 get_av (name, create);
283#endif
284 return get_av (name, create);
285}
286
287static HV *
288coro_get_hv (const char *name, int create)
289{
290#if PERL_VERSION_ATLEAST (5,9,0)
291 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
292 get_hv (name, create);
293#endif
294 return get_hv (name, create);
295}
213 296
214static AV * 297static AV *
215coro_clone_padlist (pTHX_ CV *cv) 298coro_clone_padlist (pTHX_ CV *cv)
216{ 299{
217 AV *padlist = CvPADLIST (cv); 300 AV *padlist = CvPADLIST (cv);
… …
281 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 364 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
282 ? SvMAGIC (cv) \ 365 ? SvMAGIC (cv) \
283 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 366 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
284 : 0 367 : 0
285 368
369static struct coro *
370SvSTATE_ (pTHX_ SV *coro)
371{
372 HV *stash;
373 MAGIC *mg;
374
375 if (SvROK (coro))
376 coro = SvRV (coro);
377
378 if (expect_false (SvTYPE (coro) != SVt_PVHV))
379 croak ("Coro::State object required");
380
381 stash = SvSTASH (coro);
382 if (expect_false (stash != coro_stash && stash != coro_state_stash))
383 {
384 /* very slow, but rare, check */
385 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
386 croak ("Coro::State object required");
387 }
388
389 mg = CORO_MAGIC (coro);
390 return (struct coro *)mg->mg_ptr;
391}
392
393#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
394
286/* the next two functions merely cache the padlists */ 395/* the next two functions merely cache the padlists */
287static void 396static void
288get_padlist (pTHX_ CV *cv) 397get_padlist (pTHX_ CV *cv)
289{ 398{
290 MAGIC *mg = CORO_MAGIC (cv); 399 MAGIC *mg = CORO_MAGIC (cv);
291 AV *av; 400 AV *av;
292 401
293 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 402 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
294 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 403 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
295 else 404 else
296 { 405 {
297#if CORO_PREFER_PERL_FUNCTIONS 406#if CORO_PREFER_PERL_FUNCTIONS
298 /* this is probably cleaner, but also slower? */ 407 /* this is probably cleaner, but also slower? */
… …
310put_padlist (pTHX_ CV *cv) 419put_padlist (pTHX_ CV *cv)
311{ 420{
312 MAGIC *mg = CORO_MAGIC (cv); 421 MAGIC *mg = CORO_MAGIC (cv);
313 AV *av; 422 AV *av;
314 423
315 if (!mg) 424 if (expect_false (!mg))
316 { 425 {
317 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 426 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
318 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 427 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
319 mg->mg_virtual = &vtbl_coro; 428 mg->mg_virtual = &vtbl_coro;
320 mg->mg_obj = (SV *)newAV (); 429 mg->mg_obj = (SV *)newAV ();
321 } 430 }
322 431
323 av = (AV *)mg->mg_obj; 432 av = (AV *)mg->mg_obj;
324 433
325 if (AvFILLp (av) >= AvMAX (av)) 434 if (expect_false (AvFILLp (av) >= AvMAX (av)))
326 av_extend (av, AvMAX (av) + 1); 435 av_extend (av, AvMAX (av) + 1);
327 436
328 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 437 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329} 438}
330 439
331/** load & save, init *******************************************************/ 440/** load & save, init *******************************************************/
332 441
333#define SB do {
334#define SE } while (0)
335
336#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
337
338static void 442static void
339load_perl (pTHX_ Coro__State c) 443load_perl (pTHX_ Coro__State c)
340{ 444{
445 perl_slots *slot = c->slot;
446 c->slot = 0;
447
448 PL_mainstack = c->mainstack;
449
450 GvSV (PL_defgv) = slot->defsv;
451 GvAV (PL_defgv) = slot->defav;
452 GvSV (PL_errgv) = slot->errsv;
453 GvSV (irsgv) = slot->irsgv;
454
341#define VAR(name,type) PL_ ## name = c->name; 455 #define VAR(name,type) PL_ ## name = slot->name;
342# include "state.h" 456 # include "state.h"
343#undef VAR 457 #undef VAR
344 458
345 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 459 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
346 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 460 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
347 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
348 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
349
350 if (c->irssv)
351 {
352 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
353 {
354 SvREFCNT_dec (c->irssv);
355 c->irssv = 0;
356 }
357 else
358 {
359 REPLACE_SV (PL_rs, c->irssv);
360 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
361 sv_setsv (c->irssv_sv, PL_rs);
362 }
363 }
364 461
365 { 462 {
366 dSP; 463 dSP;
464
367 CV *cv; 465 CV *cv;
368 466
369 /* now do the ugly restore mess */ 467 /* now do the ugly restore mess */
370 while ((cv = (CV *)POPs)) 468 while (expect_true (cv = (CV *)POPs))
371 { 469 {
372 put_padlist (aTHX_ cv); /* mark this padlist as available */ 470 put_padlist (aTHX_ cv); /* mark this padlist as available */
373 CvDEPTH (cv) = PTR2IV (POPs); 471 CvDEPTH (cv) = PTR2IV (POPs);
374 CvPADLIST (cv) = (AV *)POPs; 472 CvPADLIST (cv) = (AV *)POPs;
375 } 473 }
376 474
377 PUTBACK; 475 PUTBACK;
378 } 476 }
379 assert (!PL_comppad || AvARRAY (PL_comppad));//D
380} 477}
381 478
382static void 479static void
383save_perl (pTHX_ Coro__State c) 480save_perl (pTHX_ Coro__State c)
384{ 481{
385 assert (!PL_comppad || AvARRAY (PL_comppad));//D
386 { 482 {
387 dSP; 483 dSP;
388 I32 cxix = cxstack_ix; 484 I32 cxix = cxstack_ix;
389 PERL_CONTEXT *ccstk = cxstack; 485 PERL_CONTEXT *ccstk = cxstack;
390 PERL_SI *top_si = PL_curstackinfo; 486 PERL_SI *top_si = PL_curstackinfo;
… …
392 /* 488 /*
393 * the worst thing you can imagine happens first - we have to save 489 * the worst thing you can imagine happens first - we have to save
394 * (and reinitialize) all cv's in the whole callchain :( 490 * (and reinitialize) all cv's in the whole callchain :(
395 */ 491 */
396 492
397 EXTEND (SP, 3 + 1);
398 PUSHs (Nullsv); 493 XPUSHs (Nullsv);
399 /* this loop was inspired by pp_caller */ 494 /* this loop was inspired by pp_caller */
400 for (;;) 495 for (;;)
401 { 496 {
402 while (cxix >= 0) 497 while (expect_true (cxix >= 0))
403 { 498 {
404 PERL_CONTEXT *cx = &ccstk[cxix--]; 499 PERL_CONTEXT *cx = &ccstk[cxix--];
405 500
406 if (CxTYPE (cx) == CXt_SUB) 501 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
407 { 502 {
408 CV *cv = cx->blk_sub.cv; 503 CV *cv = cx->blk_sub.cv;
409 504
410 if (CvDEPTH (cv)) 505 if (expect_true (CvDEPTH (cv)))
411 { 506 {
412 EXTEND (SP, 3); 507 EXTEND (SP, 3);
413 PUSHs ((SV *)CvPADLIST (cv)); 508 PUSHs ((SV *)CvPADLIST (cv));
414 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 509 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
415 PUSHs ((SV *)cv); 510 PUSHs ((SV *)cv);
… …
418 get_padlist (aTHX_ cv); 513 get_padlist (aTHX_ cv);
419 } 514 }
420 } 515 }
421 } 516 }
422 517
423 if (top_si->si_type == PERLSI_MAIN) 518 if (expect_true (top_si->si_type == PERLSI_MAIN))
424 break; 519 break;
425 520
426 top_si = top_si->si_prev; 521 top_si = top_si->si_prev;
427 ccstk = top_si->si_cxstack; 522 ccstk = top_si->si_cxstack;
428 cxix = top_si->si_cxix; 523 cxix = top_si->si_cxix;
429 } 524 }
430 525
431 PUTBACK; 526 PUTBACK;
432 } 527 }
433 528
434 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 529 /* allocate some space on the context stack for our purposes */
435 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 530 /* we manually unroll here, as usually 2 slots is enough */
436 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 531 if (SLOT_COUNT >= 1) CXINC;
437 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 532 if (SLOT_COUNT >= 2) CXINC;
438 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 533 if (SLOT_COUNT >= 3) CXINC;
534 {
535 int i;
536 for (i = 3; i < SLOT_COUNT; ++i)
537 CXINC;
538 }
539 cxstack_ix -= SLOT_COUNT; /* undo allocation */
439 540
541 c->mainstack = PL_mainstack;
542
543 {
544 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
545
546 slot->defav = GvAV (PL_defgv);
547 slot->defsv = DEFSV;
548 slot->errsv = ERRSV;
549 slot->irsgv = GvSV (irsgv);
550
440#define VAR(name,type)c->name = PL_ ## name; 551 #define VAR(name,type) slot->name = PL_ ## name;
441# include "state.h" 552 # include "state.h"
442#undef VAR 553 #undef VAR
554 }
443} 555}
444 556
445/* 557/*
446 * allocate various perl stacks. This is an exact copy 558 * allocate various perl stacks. This is an exact copy
447 * of perl.c:init_stacks, except that it uses less memory 559 * of perl.c:init_stacks, except that it uses less memory
… …
452# define coro_init_stacks init_stacks 564# define coro_init_stacks init_stacks
453#else 565#else
454static void 566static void
455coro_init_stacks (pTHX) 567coro_init_stacks (pTHX)
456{ 568{
457 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 569 PL_curstackinfo = new_stackinfo(32, 8);
458 PL_curstackinfo->si_type = PERLSI_MAIN; 570 PL_curstackinfo->si_type = PERLSI_MAIN;
459 PL_curstack = PL_curstackinfo->si_stack; 571 PL_curstack = PL_curstackinfo->si_stack;
460 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 572 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461 573
462 PL_stack_base = AvARRAY(PL_curstack); 574 PL_stack_base = AvARRAY(PL_curstack);
463 PL_stack_sp = PL_stack_base; 575 PL_stack_sp = PL_stack_base;
464 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 576 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465 577
466 New(50,PL_tmps_stack,128,SV*); 578 New(50,PL_tmps_stack,32,SV*);
467 PL_tmps_floor = -1; 579 PL_tmps_floor = -1;
468 PL_tmps_ix = -1; 580 PL_tmps_ix = -1;
469 PL_tmps_max = 128; 581 PL_tmps_max = 32;
470 582
471 New(54,PL_markstack,32,I32); 583 New(54,PL_markstack,16,I32);
472 PL_markstack_ptr = PL_markstack; 584 PL_markstack_ptr = PL_markstack;
473 PL_markstack_max = PL_markstack + 32; 585 PL_markstack_max = PL_markstack + 16;
474 586
475#ifdef SET_MARK_OFFSET 587#ifdef SET_MARK_OFFSET
476 SET_MARK_OFFSET; 588 SET_MARK_OFFSET;
477#endif 589#endif
478 590
479 New(54,PL_scopestack,32,I32); 591 New(54,PL_scopestack,8,I32);
480 PL_scopestack_ix = 0; 592 PL_scopestack_ix = 0;
481 PL_scopestack_max = 32; 593 PL_scopestack_max = 8;
482 594
483 New(54,PL_savestack,64,ANY); 595 New(54,PL_savestack,24,ANY);
484 PL_savestack_ix = 0; 596 PL_savestack_ix = 0;
485 PL_savestack_max = 64; 597 PL_savestack_max = 24;
486 598
487#if !PERL_VERSION_ATLEAST (5,9,0) 599#if !PERL_VERSION_ATLEAST (5,9,0)
488 New(54,PL_retstack,16,OP*); 600 New(54,PL_retstack,4,OP*);
489 PL_retstack_ix = 0; 601 PL_retstack_ix = 0;
490 PL_retstack_max = 16; 602 PL_retstack_max = 4;
491#endif 603#endif
492} 604}
493#endif 605#endif
494 606
495/* 607/*
496 * destroy the stacks, the callchain etc... 608 * destroy the stacks, the callchain etc...
497 */ 609 */
498static void 610static void
499coro_destroy_stacks (pTHX) 611coro_destroy_stacks (pTHX)
500{ 612{
501 if (!IN_DESTRUCT)
502 {
503 /* restore all saved variables and stuff */
504 LEAVE_SCOPE (0);
505 assert (PL_tmps_floor == -1);
506
507 /* free all temporaries */
508 FREETMPS;
509 assert (PL_tmps_ix == -1);
510
511 /* unwind all extra stacks */
512 POPSTACK_TO (PL_mainstack);
513
514 /* unwind main stack */
515 dounwind (-1);
516 }
517
518 while (PL_curstackinfo->si_next) 613 while (PL_curstackinfo->si_next)
519 PL_curstackinfo = PL_curstackinfo->si_next; 614 PL_curstackinfo = PL_curstackinfo->si_next;
520 615
521 while (PL_curstackinfo) 616 while (PL_curstackinfo)
522 { 617 {
… …
537#if !PERL_VERSION_ATLEAST (5,9,0) 632#if !PERL_VERSION_ATLEAST (5,9,0)
538 Safefree (PL_retstack); 633 Safefree (PL_retstack);
539#endif 634#endif
540} 635}
541 636
637static size_t
638coro_rss (pTHX_ struct coro *coro)
639{
640 size_t rss = sizeof (*coro);
641
642 if (coro->mainstack)
643 {
644 perl_slots tmp_slot;
645 perl_slots *slot;
646
647 if (coro->flags & CF_RUNNING)
648 {
649 slot = &tmp_slot;
650
651 #define VAR(name,type) slot->name = PL_ ## name;
652 # include "state.h"
653 #undef VAR
654 }
655 else
656 slot = coro->slot;
657
658 rss += sizeof (slot->curstackinfo);
659 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
660 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
661 rss += slot->tmps_max * sizeof (SV *);
662 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
663 rss += slot->scopestack_max * sizeof (I32);
664 rss += slot->savestack_max * sizeof (ANY);
665
666#if !PERL_VERSION_ATLEAST (5,9,0)
667 rss += slot->retstack_max * sizeof (OP *);
668#endif
669 }
670
671 return rss;
672}
673
542/** coroutine stack handling ************************************************/ 674/** coroutine stack handling ************************************************/
543 675
544static void 676static void
545setup_coro (pTHX_ struct coro *coro) 677coro_setup (pTHX_ struct coro *coro)
546{ 678{
547 /* 679 /*
548 * emulate part of the perl startup here. 680 * emulate part of the perl startup here.
549 */ 681 */
550 coro_init_stacks (aTHX); 682 coro_init_stacks (aTHX);
551 683
684 PL_runops = RUNOPS_DEFAULT;
552 PL_curcop = &PL_compiling; 685 PL_curcop = &PL_compiling;
553 PL_in_eval = EVAL_NULL; 686 PL_in_eval = EVAL_NULL;
554 PL_comppad = 0; 687 PL_comppad = 0;
555 PL_curpm = 0; 688 PL_curpm = 0;
689 PL_curpad = 0;
556 PL_localizing = 0; 690 PL_localizing = 0;
557 PL_dirty = 0; 691 PL_dirty = 0;
558 PL_restartop = 0; 692 PL_restartop = 0;
693 PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
694 PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
695
696 GvSV (PL_defgv) = newSV (0);
697 GvAV (PL_defgv) = coro->args; coro->args = 0;
698 GvSV (PL_errgv) = newSV (0);
699 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
700 PL_rs = newSVsv (GvSV (irsgv));
701 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
559 702
560 { 703 {
561 dSP; 704 dSP;
562 LOGOP myop; 705 LOGOP myop;
563 706
564 SvREFCNT_dec (GvAV (PL_defgv));
565 GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567 Zero (&myop, 1, LOGOP); 707 Zero (&myop, 1, LOGOP);
568 myop.op_next = Nullop; 708 myop.op_next = Nullop;
569 myop.op_flags = OPf_WANT_VOID; 709 myop.op_flags = OPf_WANT_VOID;
570 710
571 PUSHMARK (SP); 711 PUSHMARK (SP);
572 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 712 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
573 PUTBACK; 713 PUTBACK;
574 PL_op = (OP *)&myop; 714 PL_op = (OP *)&myop;
575 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 715 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576 SPAGAIN; 716 SPAGAIN;
717
718 /*
719 * now its very tricky. the "tail" of the next transfer might end up
720 * either in a new cctx, or an existing one.
721 * in case of an existing one we have to take care of whatever
722 * entersub and transfer do to the perl stack.
723 */
724 ENTER;
725 EXTEND (SP, 4);
726 PUSHs ((SV *)0); /* items */
727 PUSHs ((SV *)0); /* ix, set_stacklevel */
728 PUSHs ((SV *)(sp - PL_stack_base + 1)); /* ax */
729 PUSHs ((SV *)0); /* again */
730 PUTBACK;
577 } 731 }
578 732
579 ENTER; /* necessary e.g. for dounwind */ 733 /* this newly created coroutine might be run on an existing cctx which most
734 * likely was suspended in set_stacklevel, called from entersub.
735 * set_stacklevl doesn't do anything on return, but entersub does LEAVE,
736 * so we ENTER here for symmetry
737 */
738 ENTER;
739}
740
741static void
742coro_destroy (pTHX_ struct coro *coro)
743{
744 if (!IN_DESTRUCT)
745 {
746 /* restore all saved variables and stuff */
747 LEAVE_SCOPE (0);
748 assert (PL_tmps_floor == -1);
749
750 /* free all temporaries */
751 FREETMPS;
752 assert (PL_tmps_ix == -1);
753
754 /* unwind all extra stacks */
755 POPSTACK_TO (PL_mainstack);
756
757 /* unwind main stack */
758 dounwind (-1);
759 }
760
761 SvREFCNT_dec (GvSV (PL_defgv));
762 SvREFCNT_dec (GvAV (PL_defgv));
763 SvREFCNT_dec (GvSV (PL_errgv));
764 SvREFCNT_dec (PL_defoutgv);
765 SvREFCNT_dec (PL_rs);
766 SvREFCNT_dec (GvSV (irsgv));
767
768 SvREFCNT_dec (PL_diehook);
769 SvREFCNT_dec (PL_warnhook);
770
771 SvREFCNT_dec (coro->saved_deffh);
772 SvREFCNT_dec (coro->throw);
773
774 coro_destroy_stacks (aTHX);
580} 775}
581 776
582static void 777static void
583free_coro_mortal (pTHX) 778free_coro_mortal (pTHX)
584{ 779{
585 if (coro_mortal) 780 if (expect_true (coro_mortal))
586 { 781 {
587 SvREFCNT_dec (coro_mortal); 782 SvREFCNT_dec (coro_mortal);
588 coro_mortal = 0; 783 coro_mortal = 0;
589 } 784 }
590} 785}
591 786
787static int
788runops_trace (pTHX)
789{
790 COP *oldcop = 0;
791 int oldcxix = -2;
792 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
793 coro_cctx *cctx = coro->cctx;
794
795 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
796 {
797 PERL_ASYNC_CHECK ();
798
799 if (cctx->flags & CC_TRACE_ALL)
800 {
801 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
802 {
803 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
804 SV **bot, **top;
805 AV *av = newAV (); /* return values */
806 SV **cb;
807 dSP;
808
809 GV *gv = CvGV (cx->blk_sub.cv);
810 SV *fullname = sv_2mortal (newSV (0));
811 if (isGV (gv))
812 gv_efullname3 (fullname, gv, 0);
813
814 bot = PL_stack_base + cx->blk_oldsp + 1;
815 top = cx->blk_gimme == G_ARRAY ? SP + 1
816 : cx->blk_gimme == G_SCALAR ? bot + 1
817 : bot;
818
819 av_extend (av, top - bot);
820 while (bot < top)
821 av_push (av, SvREFCNT_inc (*bot++));
822
823 PL_runops = RUNOPS_DEFAULT;
824 ENTER;
825 SAVETMPS;
826 EXTEND (SP, 3);
827 PUSHMARK (SP);
828 PUSHs (&PL_sv_no);
829 PUSHs (fullname);
830 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
831 PUTBACK;
832 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
833 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
834 SPAGAIN;
835 FREETMPS;
836 LEAVE;
837 PL_runops = runops_trace;
838 }
839
840 if (oldcop != PL_curcop)
841 {
842 oldcop = PL_curcop;
843
844 if (PL_curcop != &PL_compiling)
845 {
846 SV **cb;
847
848 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
849 {
850 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
851
852 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
853 {
854 runops_proc_t old_runops = PL_runops;
855 dSP;
856 GV *gv = CvGV (cx->blk_sub.cv);
857 SV *fullname = sv_2mortal (newSV (0));
858
859 if (isGV (gv))
860 gv_efullname3 (fullname, gv, 0);
861
862 PL_runops = RUNOPS_DEFAULT;
863 ENTER;
864 SAVETMPS;
865 EXTEND (SP, 3);
866 PUSHMARK (SP);
867 PUSHs (&PL_sv_yes);
868 PUSHs (fullname);
869 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
870 PUTBACK;
871 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0);
872 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
873 SPAGAIN;
874 FREETMPS;
875 LEAVE;
876 PL_runops = runops_trace;
877 }
878
879 oldcxix = cxstack_ix;
880 }
881
882 if (cctx->flags & CC_TRACE_LINE)
883 {
884 dSP;
885
886 PL_runops = RUNOPS_DEFAULT;
887 ENTER;
888 SAVETMPS;
889 EXTEND (SP, 3);
890 PL_runops = RUNOPS_DEFAULT;
891 PUSHMARK (SP);
892 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
893 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
894 PUTBACK;
895 cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0);
896 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
897 SPAGAIN;
898 FREETMPS;
899 LEAVE;
900 PL_runops = runops_trace;
901 }
902 }
903 }
904 }
905 }
906
907 TAINT_NOT;
908 return 0;
909}
910
592/* inject a fake call to Coro::State::_cctx_init into the execution */ 911/* inject a fake call to Coro::State::_cctx_init into the execution */
593/* _cctx_init shoukld be careful, as it could be called at almost any time */ 912/* _cctx_init should be careful, as it could be called at almost any time */
594/* during execution of a pelr program */ 913/* during execution of a perl program */
595static void NOINLINE 914static void NOINLINE
596prepare_cctx (pTHX_ coro_cctx *cctx) 915cctx_prepare (pTHX_ coro_cctx *cctx)
597{ 916{
598 dSP; 917 dSP;
599 LOGOP myop; 918 LOGOP myop;
919
920 PL_top_env = &PL_start_env;
921
922 if (cctx->flags & CC_TRACE)
923 PL_runops = runops_trace;
600 924
601 Zero (&myop, 1, LOGOP); 925 Zero (&myop, 1, LOGOP);
602 myop.op_next = PL_op; 926 myop.op_next = PL_op;
603 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 927 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
604 928
… …
614 938
615/* 939/*
616 * this is a _very_ stripped down perl interpreter ;) 940 * this is a _very_ stripped down perl interpreter ;)
617 */ 941 */
618static void 942static void
619coro_run (void *arg) 943cctx_run (void *arg)
620{ 944{
621 dTHX; 945 dTHX;
622 946
623 /* coro_run is the alternative tail of transfer(), so unlock here. */ 947 /* cctx_run is the alternative tail of transfer(), so unlock here. */
624 UNLOCK; 948 UNLOCK;
625 949
626 PL_top_env = &PL_start_env; 950 /* we now skip the entersub that lead to transfer() */
951 PL_op = PL_op->op_next;
627 952
628 /* inject a fake subroutine call to cctx_init */ 953 /* inject a fake subroutine call to cctx_init */
629 prepare_cctx (aTHX_ (coro_cctx *)arg); 954 cctx_prepare (aTHX_ (coro_cctx *)arg);
630 955
631 /* somebody or something will hit me for both perl_run and PL_restartop */ 956 /* somebody or something will hit me for both perl_run and PL_restartop */
632 PL_restartop = PL_op; 957 PL_restartop = PL_op;
633 perl_run (PL_curinterp); 958 perl_run (PL_curinterp);
634 959
960 /*
635 /* If perl-run returns we assume exit() was being called, which */ 961 * If perl-run returns we assume exit() was being called or the coro
636 /* seems to be the only valid (non-bug) reason for perl_run to return. */ 962 * fell off the end, which seems to be the only valid (non-bug)
637 /* We try to exit by jumping to the bootstrap-time "top" top_env, as */ 963 * reason for perl_run to return. We try to exit by jumping to the
638 /* we cannot restore the "main" coroutine as Coro has no such concept */ 964 * bootstrap-time "top" top_env, as we cannot restore the "main"
965 * coroutine as Coro has no such concept
966 */
639 PL_top_env = main_top_env; 967 PL_top_env = main_top_env;
640 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 968 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
641} 969}
642 970
643static coro_cctx * 971static coro_cctx *
… …
650 ++cctx_count; 978 ++cctx_count;
651 979
652 Newz (0, cctx, 1, coro_cctx); 980 Newz (0, cctx, 1, coro_cctx);
653 981
654#if HAVE_MMAP 982#if HAVE_MMAP
655
656 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 983 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
657 /* mmap supposedly does allocate-on-write for us */ 984 /* mmap supposedly does allocate-on-write for us */
658 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 985 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
659 986
660 if (cctx->sptr != (void *)-1) 987 if (cctx->sptr != (void *)-1)
… …
662# if CORO_STACKGUARD 989# if CORO_STACKGUARD
663 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 990 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
664# endif 991# endif
665 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 992 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
666 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 993 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
667 cctx->mapped = 1; 994 cctx->flags |= CC_MAPPED;
668 } 995 }
669 else 996 else
670#endif 997#endif
671 { 998 {
672 cctx->ssize = coro_stacksize * (long)sizeof (long); 999 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
681 stack_start = cctx->sptr; 1008 stack_start = cctx->sptr;
682 stack_size = cctx->ssize; 1009 stack_size = cctx->ssize;
683 } 1010 }
684 1011
685 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1012 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
686 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 1013 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
687 1014
688 return cctx; 1015 return cctx;
689} 1016}
690 1017
691static void 1018static void
… …
699#if CORO_USE_VALGRIND 1026#if CORO_USE_VALGRIND
700 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1027 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
701#endif 1028#endif
702 1029
703#if HAVE_MMAP 1030#if HAVE_MMAP
704 if (cctx->mapped) 1031 if (cctx->flags & CC_MAPPED)
705 munmap (cctx->sptr, cctx->ssize); 1032 munmap (cctx->sptr, cctx->ssize);
706 else 1033 else
707#endif 1034#endif
708 Safefree (cctx->sptr); 1035 Safefree (cctx->sptr);
709 1036
710 Safefree (cctx); 1037 Safefree (cctx);
711} 1038}
712 1039
1040/* wether this cctx should be destructed */
1041#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1042
713static coro_cctx * 1043static coro_cctx *
714cctx_get (pTHX) 1044cctx_get (pTHX_ int gimme)
715{ 1045{
716 while (cctx_first) 1046 while (expect_true (cctx_first[gimme]))
717 { 1047 {
718 coro_cctx *cctx = cctx_first; 1048 coro_cctx *cctx = cctx_first[gimme];
719 cctx_first = cctx->next; 1049 cctx_first[gimme] = cctx->next;
720 --cctx_idle; 1050 --cctx_idle[gimme];
721 1051
722 if (cctx->ssize >= coro_stacksize) 1052 if (expect_true (!CCTX_EXPIRED (cctx)))
723 return cctx; 1053 return cctx;
724 1054
725 cctx_destroy (cctx); 1055 cctx_destroy (cctx);
726 } 1056 }
727 1057
728 PL_op = PL_op->op_next; 1058 assert (!gimme);
729 return cctx_new (); 1059 return cctx_new ();
730} 1060}
731 1061
732static void 1062static void
733cctx_put (coro_cctx *cctx) 1063cctx_put (coro_cctx *cctx, int gimme)
734{ 1064{
735 /* free another cctx if overlimit */ 1065 /* free another cctx if overlimit */
736 if (cctx_idle >= MAX_IDLE_CCTX) 1066 if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX))
737 { 1067 {
738 coro_cctx *first = cctx_first; 1068 coro_cctx *first = cctx_first[gimme];
739 cctx_first = first->next; 1069 cctx_first[gimme] = first->next;
740 --cctx_idle; 1070 --cctx_idle[gimme];
741 1071
742 assert (!first->inuse);
743 cctx_destroy (first); 1072 cctx_destroy (first);
744 } 1073 }
745 1074
746 ++cctx_idle; 1075 ++cctx_idle[gimme];
747 cctx->next = cctx_first; 1076 cctx->next = cctx_first[gimme];
748 cctx_first = cctx; 1077 cctx_first[gimme] = cctx;
749} 1078}
750 1079
751/** coroutine switching *****************************************************/ 1080/** coroutine switching *****************************************************/
752 1081
753/* never call directly, always through the coro_state_transfer global variable */ 1082static void
1083transfer_check (pTHX_ struct coro *prev, struct coro *next)
1084{
1085 if (expect_true (prev != next))
1086 {
1087 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1088 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
1089
1090 if (expect_false (next->flags & CF_RUNNING))
1091 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1092
1093 if (expect_false (next->flags & CF_DESTROYED))
1094 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1095
1096 if (
1097#if PERL_VERSION_ATLEAST (5,9,0)
1098 expect_false (PL_parser)
1099#else
1100 expect_false (PL_lex_state != LEX_NOTPARSING)
1101#endif
1102 )
1103 croak ("Coro::State::transfer called while parsing, but this is not supported");
1104 }
1105}
1106
1107/* always use the TRANSFER macro */
754static void NOINLINE 1108static void NOINLINE
755transfer (pTHX_ struct coro *prev, struct coro *next) 1109transfer (pTHX_ struct coro *prev, struct coro *next)
756{ 1110{
757 dSTACKLEVEL; 1111 dSTACKLEVEL;
758 1112
759 /* sometimes transfer is only called to set idle_sp */ 1113 /* sometimes transfer is only called to set idle_sp */
760 if (!next) 1114 if (expect_false (!next))
761 { 1115 {
762 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1116 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
763 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1117 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
764 } 1118 }
765 else if (prev != next) 1119 else if (expect_true (prev != next))
766 { 1120 {
767 coro_cctx *prev__cctx; 1121 coro_cctx *prev__cctx;
768 1122
769 if (prev->flags & CF_NEW) 1123 if (expect_false (prev->flags & CF_NEW))
770 { 1124 {
771 /* create a new empty context */ 1125 /* create a new empty context */
772 Newz (0, prev->cctx, 1, coro_cctx); 1126 Newz (0, prev->cctx, 1, coro_cctx);
773 prev->cctx->inuse = 1;
774 prev->flags &= ~CF_NEW; 1127 prev->flags &= ~CF_NEW;
775 prev->flags |= CF_RUNNING; 1128 prev->flags |= CF_RUNNING;
776 } 1129 }
777 1130
778 /*TODO: must not croak here */
779 if (!prev->flags & CF_RUNNING)
780 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
781
782 if (next->flags & CF_RUNNING)
783 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
784
785 if (next->flags & CF_DESTROYED)
786 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
787
788 prev->flags &= ~CF_RUNNING; 1131 prev->flags &= ~CF_RUNNING;
789 next->flags |= CF_RUNNING; 1132 next->flags |= CF_RUNNING;
790 1133
791 LOCK; 1134 LOCK;
792 1135
793 if (next->flags & CF_NEW) 1136 if (expect_false (next->flags & CF_NEW))
794 { 1137 {
795 /* need to start coroutine */ 1138 /* need to start coroutine */
796 next->flags &= ~CF_NEW; 1139 next->flags &= ~CF_NEW;
797 /* first get rid of the old state */ 1140 /* first get rid of the old state */
798 save_perl (aTHX_ prev); 1141 save_perl (aTHX_ prev);
799 /* setup coroutine call */ 1142 /* setup coroutine call */
800 setup_coro (aTHX_ next); 1143 coro_setup (aTHX_ next);
801 /* need a new stack */
802 assert (!next->cctx);
803 } 1144 }
804 else 1145 else
805 { 1146 {
806 /* coroutine already started */ 1147 /* coroutine already started */
807 save_perl (aTHX_ prev); 1148 save_perl (aTHX_ prev);
… …
809 } 1150 }
810 1151
811 prev__cctx = prev->cctx; 1152 prev__cctx = prev->cctx;
812 1153
813 /* possibly "free" the cctx */ 1154 /* possibly "free" the cctx */
814 if (prev__cctx->idle_sp == STACKLEVEL) 1155 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
815 { 1156 {
816 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1157 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
817 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1158 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
818 1159
819 prev->cctx = 0; 1160 prev->cctx = 0;
820 1161
1162 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1163 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1164 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1165 if (!next->cctx)
1166 next->cctx = cctx_get (aTHX_ next->gimme);
1167
821 cctx_put (prev__cctx); 1168 cctx_put (prev__cctx, prev->gimme);
822 prev__cctx->inuse = 0;
823 } 1169 }
824 1170
1171 ++next->usecount;
1172
825 if (!next->cctx) 1173 if (expect_true (!next->cctx))
826 {
827 next->cctx = cctx_get (aTHX); 1174 next->cctx = cctx_get (aTHX_ next->gimme);
828 assert (!next->cctx->inuse);
829 next->cctx->inuse = 1;
830 }
831 1175
832 if (prev__cctx != next->cctx) 1176 if (expect_false (prev__cctx != next->cctx))
833 { 1177 {
834 prev__cctx->top_env = PL_top_env; 1178 prev__cctx->top_env = PL_top_env;
835 PL_top_env = next->cctx->top_env; 1179 PL_top_env = next->cctx->top_env;
836 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1180 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
837 } 1181 }
838 1182
839 free_coro_mortal (aTHX); 1183 free_coro_mortal (aTHX);
840 UNLOCK; 1184 UNLOCK;
1185
1186 if (expect_false (prev->throw || next->throw))
1187 {
1188 struct coro *coro = SvSTATE (coro_current);
1189
1190 if (coro->throw)
1191 {
1192 SV *exception = coro->throw;
1193 coro->throw = 0;
1194 sv_setsv (ERRSV, exception);
1195 croak (0);
1196 }
1197 }
841 } 1198 }
842} 1199}
843 1200
844struct transfer_args 1201struct transfer_args
845{ 1202{
846 struct coro *prev, *next; 1203 struct coro *prev, *next;
847}; 1204};
848 1205
849#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1206#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1207#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
850 1208
851/** high level stuff ********************************************************/ 1209/** high level stuff ********************************************************/
852 1210
853static int 1211static int
854coro_state_destroy (pTHX_ struct coro *coro) 1212coro_state_destroy (pTHX_ struct coro *coro)
… …
871 1229
872 if (coro->mainstack && coro->mainstack != main_mainstack) 1230 if (coro->mainstack && coro->mainstack != main_mainstack)
873 { 1231 {
874 struct coro temp; 1232 struct coro temp;
875 1233
876 assert (!(coro->flags & CF_RUNNING));
877
878 Zero (&temp, 1, struct coro);
879 temp.save = CORO_SAVE_DEF;
880
881 if (coro->flags & CF_RUNNING) 1234 if (coro->flags & CF_RUNNING)
882 croak ("FATAL: tried to destroy currently running coroutine"); 1235 croak ("FATAL: tried to destroy currently running coroutine");
883 1236
884 save_perl (aTHX_ &temp); 1237 save_perl (aTHX_ &temp);
885 load_perl (aTHX_ coro); 1238 load_perl (aTHX_ coro);
886 1239
887 coro_destroy_stacks (aTHX); 1240 coro_destroy (aTHX_ coro);
888 1241
889 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1242 load_perl (aTHX_ &temp);
890 1243
891 coro->mainstack = 0; 1244 coro->slot = 0;
892 } 1245 }
893 1246
894 cctx_destroy (coro->cctx); 1247 cctx_destroy (coro->cctx);
895 SvREFCNT_dec (coro->args); 1248 SvREFCNT_dec (coro->args);
896 1249
1250 if (coro->next) coro->next->prev = coro->prev;
1251 if (coro->prev) coro->prev->next = coro->next;
1252 if (coro == coro_first) coro_first = coro->next;
1253
897 return 1; 1254 return 1;
898} 1255}
899 1256
900static int 1257static int
901coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1258coro_state_free (pTHX_ SV *sv, MAGIC *mg)
902{ 1259{
903 struct coro *coro = (struct coro *)mg->mg_ptr; 1260 struct coro *coro = (struct coro *)mg->mg_ptr;
904 mg->mg_ptr = 0; 1261 mg->mg_ptr = 0;
1262
1263 coro->hv = 0;
905 1264
906 if (--coro->refcnt < 0) 1265 if (--coro->refcnt < 0)
907 { 1266 {
908 coro_state_destroy (aTHX_ coro); 1267 coro_state_destroy (aTHX_ coro);
909 Safefree (coro); 1268 Safefree (coro);
… …
931#else 1290#else
932# define MGf_DUP 0 1291# define MGf_DUP 0
933#endif 1292#endif
934}; 1293};
935 1294
936static struct coro *
937SvSTATE_ (pTHX_ SV *coro)
938{
939 HV *stash;
940 MAGIC *mg;
941
942 if (SvROK (coro))
943 coro = SvRV (coro);
944
945 stash = SvSTASH (coro);
946 if (stash != coro_stash && stash != coro_state_stash)
947 {
948 /* very slow, but rare, check */
949 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
950 croak ("Coro::State object required");
951 }
952
953 mg = CORO_MAGIC (coro);
954 return (struct coro *)mg->mg_ptr;
955}
956
957#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
958
959static void 1295static void
960prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1296prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
961{ 1297{
962 ta->prev = SvSTATE (prev_sv); 1298 ta->prev = SvSTATE (prev_sv);
963 ta->next = SvSTATE (next_sv); 1299 ta->next = SvSTATE (next_sv);
1300 TRANSFER_CHECK (*ta);
964} 1301}
965 1302
966static void 1303static void
967api_transfer (SV *prev_sv, SV *next_sv) 1304api_transfer (SV *prev_sv, SV *next_sv)
968{ 1305{
969 dTHX; 1306 dTHX;
970 struct transfer_args ta; 1307 struct transfer_args ta;
971 1308
972 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1309 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
973 TRANSFER (ta); 1310 TRANSFER (ta);
974}
975
976static int
977api_save (SV *coro_sv, int new_save)
978{
979 dTHX;
980 struct coro *coro = SvSTATE (coro_sv);
981 int old_save = coro->save;
982
983 if (new_save >= 0)
984 coro->save = new_save;
985
986 return old_save;
987} 1311}
988 1312
989/** Coro ********************************************************************/ 1313/** Coro ********************************************************************/
990 1314
991static void 1315static void
… …
1050 { 1374 {
1051 LOCK; 1375 LOCK;
1052 next_sv = coro_deq (aTHX_ PRIO_MIN); 1376 next_sv = coro_deq (aTHX_ PRIO_MIN);
1053 1377
1054 /* nothing to schedule: call the idle handler */ 1378 /* nothing to schedule: call the idle handler */
1055 if (!next_sv) 1379 if (expect_false (!next_sv))
1056 { 1380 {
1057 dSP; 1381 dSP;
1058 UNLOCK; 1382 UNLOCK;
1059 1383
1060 ENTER; 1384 ENTER;
… …
1070 } 1394 }
1071 1395
1072 ta->next = SvSTATE (next_sv); 1396 ta->next = SvSTATE (next_sv);
1073 1397
1074 /* cannot transfer to destroyed coros, skip and look for next */ 1398 /* cannot transfer to destroyed coros, skip and look for next */
1075 if (ta->next->flags & CF_DESTROYED) 1399 if (expect_false (ta->next->flags & CF_DESTROYED))
1076 { 1400 {
1077 UNLOCK; 1401 UNLOCK;
1078 SvREFCNT_dec (next_sv); 1402 SvREFCNT_dec (next_sv);
1079 /* coro_nready is already taken care of by destroy */ 1403 /* coro_nready is already taken care of by destroy */
1080 continue; 1404 continue;
… …
1085 break; 1409 break;
1086 } 1410 }
1087 1411
1088 /* free this only after the transfer */ 1412 /* free this only after the transfer */
1089 prev_sv = SvRV (coro_current); 1413 prev_sv = SvRV (coro_current);
1090 SvRV_set (coro_current, next_sv);
1091 ta->prev = SvSTATE (prev_sv); 1414 ta->prev = SvSTATE (prev_sv);
1092 1415 TRANSFER_CHECK (*ta);
1093 assert (ta->next->flags & CF_READY); 1416 assert (ta->next->flags & CF_READY);
1094 ta->next->flags &= ~CF_READY; 1417 ta->next->flags &= ~CF_READY;
1418 SvRV_set (coro_current, next_sv);
1095 1419
1096 LOCK; 1420 LOCK;
1097 free_coro_mortal (aTHX); 1421 free_coro_mortal (aTHX);
1098 coro_mortal = prev_sv; 1422 coro_mortal = prev_sv;
1099 UNLOCK; 1423 UNLOCK;
… …
1136 dTHX; 1460 dTHX;
1137 struct transfer_args ta; 1461 struct transfer_args ta;
1138 1462
1139 prepare_cede (aTHX_ &ta); 1463 prepare_cede (aTHX_ &ta);
1140 1464
1141 if (ta.prev != ta.next) 1465 if (expect_true (ta.prev != ta.next))
1142 { 1466 {
1143 TRANSFER (ta); 1467 TRANSFER (ta);
1144 return 1; 1468 return 1;
1145 } 1469 }
1146 else 1470 else
… …
1160 } 1484 }
1161 else 1485 else
1162 return 0; 1486 return 0;
1163} 1487}
1164 1488
1489static void
1490api_trace (SV *coro_sv, int flags)
1491{
1492 dTHX;
1493 struct coro *coro = SvSTATE (coro_sv);
1494
1495 if (flags & CC_TRACE)
1496 {
1497 if (!coro->cctx)
1498 coro->cctx = cctx_new ();
1499 else if (!(coro->cctx->flags & CC_TRACE))
1500 croak ("cannot enable tracing on coroutine with custom stack");
1501
1502 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1503 }
1504 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1505 {
1506 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1507
1508 if (coro->flags & CF_RUNNING)
1509 PL_runops = RUNOPS_DEFAULT;
1510 else
1511 coro->slot->runops = RUNOPS_DEFAULT;
1512 }
1513}
1514
1165MODULE = Coro::State PACKAGE = Coro::State 1515MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1166 1516
1167PROTOTYPES: DISABLE 1517PROTOTYPES: DISABLE
1168 1518
1169BOOT: 1519BOOT:
1170{ 1520{
1171#ifdef USE_ITHREADS 1521#ifdef USE_ITHREADS
1172 MUTEX_INIT (&coro_mutex); 1522 MUTEX_INIT (&coro_mutex);
1173#endif 1523#endif
1174 BOOT_PAGESIZE; 1524 BOOT_PAGESIZE;
1175 1525
1526 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1527 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1528
1529 hv_sig = coro_get_hv ("SIG", TRUE);
1530 sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE);
1531 sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE);
1532
1533 if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);
1534 if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);
1535
1176 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1536 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1177 1537
1178 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1538 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1179 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1539 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1180 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1181 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1182 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1183 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1540 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1184 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1541 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1185 1542
1186 main_mainstack = PL_mainstack; 1543 main_mainstack = PL_mainstack;
1187 main_top_env = PL_top_env; 1544 main_top_env = PL_top_env;
1188 1545
1189 while (main_top_env->je_prev) 1546 while (main_top_env->je_prev)
1190 main_top_env = main_top_env->je_prev; 1547 main_top_env = main_top_env->je_prev;
1191 1548
1192 coroapi.ver = CORO_API_VERSION; 1549 coroapi.ver = CORO_API_VERSION;
1550 coroapi.rev = CORO_API_REVISION;
1193 coroapi.transfer = api_transfer; 1551 coroapi.transfer = api_transfer;
1194 1552
1195 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1553 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1196} 1554}
1197 1555
… …
1202 struct coro *coro; 1560 struct coro *coro;
1203 HV *hv; 1561 HV *hv;
1204 int i; 1562 int i;
1205 1563
1206 Newz (0, coro, 1, struct coro); 1564 Newz (0, coro, 1, struct coro);
1207 coro->args = newAV (); 1565 coro->args = newAV ();
1208 coro->save = CORO_SAVE_DEF;
1209 coro->flags = CF_NEW; 1566 coro->flags = CF_NEW;
1210 1567
1568 if (coro_first) coro_first->prev = coro;
1569 coro->next = coro_first;
1570 coro_first = coro;
1571
1211 hv = newHV (); 1572 coro->hv = hv = newHV ();
1212 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1573 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1213 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1574 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1214 1575
1576 av_extend (coro->args, items - 1);
1215 for (i = 1; i < items; i++) 1577 for (i = 1; i < items; i++)
1216 av_push (coro->args, newSVsv (ST (i))); 1578 av_push (coro->args, newSVsv (ST (i)));
1217} 1579}
1218 OUTPUT: 1580 OUTPUT:
1219 RETVAL 1581 RETVAL
1220 1582
1221int 1583# these not obviously related functions are all rolled into the same xs
1222save (SV *coro, int new_save = -1) 1584# function to increase chances that they all will call transfer with the same
1223 CODE: 1585# stack offset
1224 RETVAL = api_save (coro, new_save);
1225 OUTPUT:
1226 RETVAL
1227
1228int
1229save_also (SV *coro_sv, int save_also)
1230 CODE:
1231{
1232 struct coro *coro = SvSTATE (coro_sv);
1233 RETVAL = coro->save;
1234 coro->save |= save_also;
1235}
1236 OUTPUT:
1237 RETVAL
1238
1239void 1586void
1240_set_stacklevel (...) 1587_set_stacklevel (...)
1241 ALIAS: 1588 ALIAS:
1242 Coro::State::transfer = 1 1589 Coro::State::transfer = 1
1243 Coro::schedule = 2 1590 Coro::schedule = 2
… …
1275 1622
1276 break; 1623 break;
1277 } 1624 }
1278 1625
1279 BARRIER; 1626 BARRIER;
1627 PUTBACK;
1280 TRANSFER (ta); 1628 TRANSFER (ta);
1281 1629 SPAGAIN; /* might be the sp of a different coroutine now */
1282 if (GIMME_V != G_VOID && ta.next != ta.prev) 1630 /* be extra careful not to ever do anything after TRANSFER */
1283 XSRETURN_YES;
1284} 1631}
1285 1632
1286bool 1633bool
1287_destroy (SV *coro_sv) 1634_destroy (SV *coro_sv)
1288 CODE: 1635 CODE:
… …
1314 RETVAL 1661 RETVAL
1315 1662
1316int 1663int
1317cctx_idle () 1664cctx_idle ()
1318 CODE: 1665 CODE:
1319 RETVAL = cctx_idle; 1666 RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2];
1320 OUTPUT: 1667 OUTPUT:
1321 RETVAL 1668 RETVAL
1322 1669
1670void
1671list ()
1672 PPCODE:
1673{
1674 struct coro *coro;
1675 for (coro = coro_first; coro; coro = coro->next)
1676 if (coro->hv)
1677 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1678}
1679
1680void
1681call (Coro::State coro, SV *coderef)
1682 ALIAS:
1683 eval = 1
1684 CODE:
1685{
1686 if (coro->mainstack)
1687 {
1688 struct coro temp;
1689
1690 if (!(coro->flags & CF_RUNNING))
1691 {
1692 save_perl (aTHX_ &temp);
1693 load_perl (aTHX_ coro);
1694 }
1695
1696 {
1697 dSP;
1698 ENTER;
1699 SAVETMPS;
1700 PUTBACK;
1701 PUSHSTACK;
1702 PUSHMARK (SP);
1703
1704 if (ix)
1705 eval_sv (coderef, 0);
1706 else
1707 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1708
1709 POPSTACK;
1710 FREETMPS;
1711 LEAVE;
1712 PUTBACK;
1713 }
1714
1715 if (!(coro->flags & CF_RUNNING))
1716 {
1717 save_perl (aTHX_ coro);
1718 load_perl (aTHX_ &temp);
1719 }
1720 }
1721}
1722
1723SV *
1724is_ready (Coro::State coro)
1725 PROTOTYPE: $
1726 ALIAS:
1727 is_ready = CF_READY
1728 is_running = CF_RUNNING
1729 is_new = CF_NEW
1730 is_destroyed = CF_DESTROYED
1731 CODE:
1732 RETVAL = boolSV (coro->flags & ix);
1733 OUTPUT:
1734 RETVAL
1735
1736void
1737api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1738
1739SV *
1740has_stack (Coro::State coro)
1741 PROTOTYPE: $
1742 CODE:
1743 RETVAL = boolSV (!!coro->cctx);
1744 OUTPUT:
1745 RETVAL
1746
1747int
1748is_traced (Coro::State coro)
1749 PROTOTYPE: $
1750 CODE:
1751 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1752 OUTPUT:
1753 RETVAL
1754
1755IV
1756rss (Coro::State coro)
1757 PROTOTYPE: $
1758 ALIAS:
1759 usecount = 1
1760 CODE:
1761 switch (ix)
1762 {
1763 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1764 case 1: RETVAL = coro->usecount; break;
1765 }
1766 OUTPUT:
1767 RETVAL
1768
1769
1323MODULE = Coro::State PACKAGE = Coro 1770MODULE = Coro::State PACKAGE = Coro
1324 1771
1325BOOT: 1772BOOT:
1326{ 1773{
1327 int i; 1774 int i;
1328 1775
1776 sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE);
1777 sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE);
1778 av_async_pool = coro_get_av ("Coro::async_pool", TRUE);
1779
1780 coro_current = coro_get_sv ("Coro::current", FALSE);
1781 SvREADONLY_on (coro_current);
1782
1329 coro_stash = gv_stashpv ("Coro", TRUE); 1783 coro_stash = gv_stashpv ("Coro", TRUE);
1330 1784
1331 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1785 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1332 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1786 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1333 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1787 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1334 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1788 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1335 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1789 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1336 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1790 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1337 1791
1338 coro_current = get_sv ("Coro::current", FALSE);
1339 SvREADONLY_on (coro_current);
1340
1341 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1792 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1342 coro_ready[i] = newAV (); 1793 coro_ready[i] = newAV ();
1343 1794
1344 { 1795 {
1345 SV *sv = perl_get_sv("Coro::API", 1); 1796 SV *sv = perl_get_sv ("Coro::API", TRUE);
1797 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1346 1798
1347 coroapi.schedule = api_schedule; 1799 coroapi.schedule = api_schedule;
1348 coroapi.save = api_save;
1349 coroapi.cede = api_cede; 1800 coroapi.cede = api_cede;
1350 coroapi.cede_notself = api_cede_notself; 1801 coroapi.cede_notself = api_cede_notself;
1351 coroapi.ready = api_ready; 1802 coroapi.ready = api_ready;
1352 coroapi.is_ready = api_is_ready; 1803 coroapi.is_ready = api_is_ready;
1353 coroapi.nready = &coro_nready; 1804 coroapi.nready = &coro_nready;
… …
1394 CODE: 1845 CODE:
1395 RETVAL = boolSV (api_ready (self)); 1846 RETVAL = boolSV (api_ready (self));
1396 OUTPUT: 1847 OUTPUT:
1397 RETVAL 1848 RETVAL
1398 1849
1399SV *
1400is_ready (SV *self)
1401 PROTOTYPE: $
1402 CODE:
1403 RETVAL = boolSV (api_is_ready (self));
1404 OUTPUT:
1405 RETVAL
1406
1407int 1850int
1408nready (...) 1851nready (...)
1409 PROTOTYPE: 1852 PROTOTYPE:
1410 CODE: 1853 CODE:
1411 RETVAL = coro_nready; 1854 RETVAL = coro_nready;
1412 OUTPUT: 1855 OUTPUT:
1413 RETVAL 1856 RETVAL
1414 1857
1858void
1859throw (Coro::State self, SV *throw = &PL_sv_undef)
1860 PROTOTYPE: $;$
1861 CODE:
1862 SvREFCNT_dec (self->throw);
1863 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1864
1865# for async_pool speedup
1866void
1867_pool_1 (SV *cb)
1868 CODE:
1869{
1870 struct coro *coro = SvSTATE (coro_current);
1871 HV *hv = (HV *)SvRV (coro_current);
1872 AV *defav = GvAV (PL_defgv);
1873 SV *invoke = hv_delete (hv, strpair ("_invoke"), 0);
1874 AV *invoke_av;
1875 int i, len;
1876
1877 if (!invoke)
1878 croak ("\3async_pool terminate\2\n");
1879
1880 SvREFCNT_dec (coro->saved_deffh);
1881 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1882
1883 hv_store (hv, "desc", sizeof ("desc") - 1,
1884 newSVpvn (strpair ("[async_pool]")), 0);
1885
1886 invoke_av = (AV *)SvRV (invoke);
1887 len = av_len (invoke_av);
1888
1889 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1890
1891 if (len > 0)
1892 {
1893 av_fill (defav, len - 1);
1894 for (i = 0; i < len; ++i)
1895 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1896 }
1897
1898 SvREFCNT_dec (invoke);
1899}
1900
1901void
1902_pool_2 (SV *cb)
1903 CODE:
1904{
1905 struct coro *coro = SvSTATE (coro_current);
1906
1907 sv_setsv (cb, &PL_sv_undef);
1908
1909 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1910 coro->saved_deffh = 0;
1911
1912 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1913 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1914 croak ("\3async_pool terminate\2\n");
1915
1916 av_clear (GvAV (PL_defgv));
1917 hv_store ((HV *)SvRV (coro_current), strpair ("desc"),
1918 newSVpvn (strpair ("[async_pool idle]")), 0);
1919
1920 coro->prio = 0;
1921
1922 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1923 api_trace (coro_current, 0);
1924
1925 av_push (av_async_pool, newSVsv (coro_current));
1926}
1927
1928
1415MODULE = Coro::State PACKAGE = Coro::AIO 1929MODULE = Coro::State PACKAGE = Coro::AIO
1416 1930
1417SV * 1931SV *
1418_get_state () 1932_get_state ()
1419 CODE: 1933 CODE:

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