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Comparing Coro/Coro/State.xs (file contents):
Revision 1.146 by root, Sat Mar 17 19:51:57 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;
… …
129}; 145};
130 146
131static size_t coro_stacksize = CORO_STACKSIZE; 147static size_t coro_stacksize = CORO_STACKSIZE;
132static struct CoroAPI coroapi; 148static struct CoroAPI coroapi;
133static AV *main_mainstack; /* used to differentiate between $main and others */ 149static AV *main_mainstack; /* used to differentiate between $main and others */
150static JMPENV *main_top_env;
134static HV *coro_state_stash, *coro_stash; 151static HV *coro_state_stash, *coro_stash;
135static SV *coro_mortal; /* will be freed after next transfer */ 152static SV *coro_mortal; /* will be freed after next transfer */
136 153
137static 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 */
138static 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};
139 177
140/* this is a structure representing a c-level coroutine */ 178/* this is a structure representing a c-level coroutine */
141typedef struct coro_cctx { 179typedef struct coro_cctx {
142 struct coro_cctx *next; 180 struct coro_cctx *next;
143 181
… …
152 coro_context cctx; 190 coro_context cctx;
153 191
154#if CORO_USE_VALGRIND 192#if CORO_USE_VALGRIND
155 int valgrind_id; 193 int valgrind_id;
156#endif 194#endif
157 char inuse, mapped; 195 unsigned char flags;
158} coro_cctx; 196} coro_cctx;
159 197
160enum { 198enum {
161 CF_RUNNING = 0x0001, /* coroutine is running */ 199 CF_RUNNING = 0x0001, /* coroutine is running */
162 CF_READY = 0x0002, /* coroutine is ready */ 200 CF_READY = 0x0002, /* coroutine is ready */
163 CF_NEW = 0x0004, /* has never been switched to */ 201 CF_NEW = 0x0004, /* has never been switched to */
164 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 202 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
165}; 203};
166 204
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
167/* this is a structure representing a perl-level coroutine */ 218/* this is a structure representing a perl-level coroutine */
168struct coro { 219struct coro {
169 /* the c coroutine allocated to this perl coroutine, if any */ 220 /* the c coroutine allocated to this perl coroutine, if any */
170 coro_cctx *cctx; 221 coro_cctx *cctx;
222 int gimme;
171 223
224 /* process data */
225 AV *mainstack;
226 perl_slots *slot; /* basically the saved sp */
227
172 /* data associated with this coroutine (initial args) */ 228 AV *args; /* data associated with this coroutine (initial args) */
173 AV *args; 229 int refcnt; /* coroutines are refcounted, yes */
174 int refcnt;
175 int save; /* CORO_SAVE flags */
176 int flags; /* CF_ flags */ 230 int flags; /* CF_ flags */
231 HV *hv; /* the perl hash associated with this coro, if any */
177 232
178 /* optionally saved, might be zero */ 233 /* statistics */
179 AV *defav; /* @_ */ 234 int usecount; /* number of transfers to this coro */
180 SV *defsv; /* $_ */
181 SV *errsv; /* $@ */
182 SV *irssv; /* $/ */
183 SV *irssv_sv; /* real $/ cache */
184
185#define VAR(name,type) type name;
186# include "state.h"
187#undef VAR
188 235
189 /* coro process data */ 236 /* coro process data */
190 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;
191}; 245};
192 246
193typedef struct coro *Coro__State; 247typedef struct coro *Coro__State;
194typedef struct coro *Coro__State_or_hashref; 248typedef struct coro *Coro__State_or_hashref;
195 249
… …
204 258
205/* for Coro.pm */ 259/* for Coro.pm */
206static SV *coro_current; 260static SV *coro_current;
207static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 261static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
208static int coro_nready; 262static int coro_nready;
263static struct coro *coro_first;
209 264
210/** 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}
211 296
212static AV * 297static AV *
213coro_clone_padlist (pTHX_ CV *cv) 298coro_clone_padlist (pTHX_ CV *cv)
214{ 299{
215 AV *padlist = CvPADLIST (cv); 300 AV *padlist = CvPADLIST (cv);
… …
279 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 364 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
280 ? SvMAGIC (cv) \ 365 ? SvMAGIC (cv) \
281 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 366 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
282 : 0 367 : 0
283 368
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
284/* the next two functions merely cache the padlists */ 395/* the next two functions merely cache the padlists */
285static void 396static void
286get_padlist (pTHX_ CV *cv) 397get_padlist (pTHX_ CV *cv)
287{ 398{
288 MAGIC *mg = CORO_MAGIC (cv); 399 MAGIC *mg = CORO_MAGIC (cv);
289 AV *av; 400 AV *av;
290 401
291 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 402 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
292 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 403 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
293 else 404 else
294 { 405 {
295#if CORO_PREFER_PERL_FUNCTIONS 406#if CORO_PREFER_PERL_FUNCTIONS
296 /* this is probably cleaner, but also slower? */ 407 /* this is probably cleaner, but also slower? */
… …
308put_padlist (pTHX_ CV *cv) 419put_padlist (pTHX_ CV *cv)
309{ 420{
310 MAGIC *mg = CORO_MAGIC (cv); 421 MAGIC *mg = CORO_MAGIC (cv);
311 AV *av; 422 AV *av;
312 423
313 if (!mg) 424 if (expect_false (!mg))
314 { 425 {
315 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); 426 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
316 mg = mg_find ((SV *)cv, PERL_MAGIC_coro); 427 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
317 mg->mg_virtual = &vtbl_coro; 428 mg->mg_virtual = &vtbl_coro;
318 mg->mg_obj = (SV *)newAV (); 429 mg->mg_obj = (SV *)newAV ();
319 } 430 }
320 431
321 av = (AV *)mg->mg_obj; 432 av = (AV *)mg->mg_obj;
322 433
323 if (AvFILLp (av) >= AvMAX (av)) 434 if (expect_false (AvFILLp (av) >= AvMAX (av)))
324 av_extend (av, AvMAX (av) + 1); 435 av_extend (av, AvMAX (av) + 1);
325 436
326 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 437 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
327} 438}
328 439
329/** load & save, init *******************************************************/ 440/** load & save, init *******************************************************/
330 441
331#define SB do {
332#define SE } while (0)
333
334#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
335
336static void 442static void
337load_perl (pTHX_ Coro__State c) 443load_perl (pTHX_ Coro__State c)
338{ 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
339#define VAR(name,type) PL_ ## name = c->name; 455 #define VAR(name,type) PL_ ## name = slot->name;
340# include "state.h" 456 # include "state.h"
341#undef VAR 457 #undef VAR
342 458
343 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 459 /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/
344 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 460 /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/
345 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
346 if (c->irssv)
347 {
348 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
349 SvREFCNT_dec (c->irssv);
350 else
351 {
352 REPLACE_SV (PL_rs, c->irssv);
353 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
354 sv_setsv (c->irssv_sv, PL_rs);
355 }
356 }
357 461
358 { 462 {
359 dSP; 463 dSP;
464
360 CV *cv; 465 CV *cv;
361 466
362 /* now do the ugly restore mess */ 467 /* now do the ugly restore mess */
363 while ((cv = (CV *)POPs)) 468 while (expect_true (cv = (CV *)POPs))
364 { 469 {
365 put_padlist (aTHX_ cv); /* mark this padlist as available */ 470 put_padlist (aTHX_ cv); /* mark this padlist as available */
366 CvDEPTH (cv) = PTR2IV (POPs); 471 CvDEPTH (cv) = PTR2IV (POPs);
367 CvPADLIST (cv) = (AV *)POPs; 472 CvPADLIST (cv) = (AV *)POPs;
368 } 473 }
369 474
370 PUTBACK; 475 PUTBACK;
371 } 476 }
372 assert (!PL_comppad || AvARRAY (PL_comppad));//D
373} 477}
374 478
375static void 479static void
376save_perl (pTHX_ Coro__State c) 480save_perl (pTHX_ Coro__State c)
377{ 481{
378 assert (!PL_comppad || AvARRAY (PL_comppad));//D
379 { 482 {
380 dSP; 483 dSP;
381 I32 cxix = cxstack_ix; 484 I32 cxix = cxstack_ix;
382 PERL_CONTEXT *ccstk = cxstack; 485 PERL_CONTEXT *ccstk = cxstack;
383 PERL_SI *top_si = PL_curstackinfo; 486 PERL_SI *top_si = PL_curstackinfo;
… …
385 /* 488 /*
386 * 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
387 * (and reinitialize) all cv's in the whole callchain :( 490 * (and reinitialize) all cv's in the whole callchain :(
388 */ 491 */
389 492
390 EXTEND (SP, 3 + 1);
391 PUSHs (Nullsv); 493 XPUSHs (Nullsv);
392 /* this loop was inspired by pp_caller */ 494 /* this loop was inspired by pp_caller */
393 for (;;) 495 for (;;)
394 { 496 {
395 while (cxix >= 0) 497 while (expect_true (cxix >= 0))
396 { 498 {
397 PERL_CONTEXT *cx = &ccstk[cxix--]; 499 PERL_CONTEXT *cx = &ccstk[cxix--];
398 500
399 if (CxTYPE (cx) == CXt_SUB) 501 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
400 { 502 {
401 CV *cv = cx->blk_sub.cv; 503 CV *cv = cx->blk_sub.cv;
402 504
403 if (CvDEPTH (cv)) 505 if (expect_true (CvDEPTH (cv)))
404 { 506 {
405 EXTEND (SP, 3); 507 EXTEND (SP, 3);
406 PUSHs ((SV *)CvPADLIST (cv)); 508 PUSHs ((SV *)CvPADLIST (cv));
407 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 509 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
408 PUSHs ((SV *)cv); 510 PUSHs ((SV *)cv);
… …
411 get_padlist (aTHX_ cv); 513 get_padlist (aTHX_ cv);
412 } 514 }
413 } 515 }
414 } 516 }
415 517
416 if (top_si->si_type == PERLSI_MAIN) 518 if (expect_true (top_si->si_type == PERLSI_MAIN))
417 break; 519 break;
418 520
419 top_si = top_si->si_prev; 521 top_si = top_si->si_prev;
420 ccstk = top_si->si_cxstack; 522 ccstk = top_si->si_cxstack;
421 cxix = top_si->si_cxix; 523 cxix = top_si->si_cxix;
422 } 524 }
423 525
424 PUTBACK; 526 PUTBACK;
425 } 527 }
426 528
427 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 */
428 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 530 /* we manually unroll here, as usually 2 slots is enough */
429 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 531 if (SLOT_COUNT >= 1) CXINC;
430 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 532 if (SLOT_COUNT >= 2) CXINC;
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 */
431 540
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
432#define VAR(name,type)c->name = PL_ ## name; 551 #define VAR(name,type) slot->name = PL_ ## name;
433# include "state.h" 552 # include "state.h"
434#undef VAR 553 #undef VAR
554 }
435} 555}
436 556
437/* 557/*
438 * allocate various perl stacks. This is an exact copy 558 * allocate various perl stacks. This is an exact copy
439 * of perl.c:init_stacks, except that it uses less memory 559 * of perl.c:init_stacks, except that it uses less memory
… …
444# define coro_init_stacks init_stacks 564# define coro_init_stacks init_stacks
445#else 565#else
446static void 566static void
447coro_init_stacks (pTHX) 567coro_init_stacks (pTHX)
448{ 568{
449 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 569 PL_curstackinfo = new_stackinfo(32, 8);
450 PL_curstackinfo->si_type = PERLSI_MAIN; 570 PL_curstackinfo->si_type = PERLSI_MAIN;
451 PL_curstack = PL_curstackinfo->si_stack; 571 PL_curstack = PL_curstackinfo->si_stack;
452 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 572 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
453 573
454 PL_stack_base = AvARRAY(PL_curstack); 574 PL_stack_base = AvARRAY(PL_curstack);
455 PL_stack_sp = PL_stack_base; 575 PL_stack_sp = PL_stack_base;
456 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 576 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
457 577
458 New(50,PL_tmps_stack,128,SV*); 578 New(50,PL_tmps_stack,32,SV*);
459 PL_tmps_floor = -1; 579 PL_tmps_floor = -1;
460 PL_tmps_ix = -1; 580 PL_tmps_ix = -1;
461 PL_tmps_max = 128; 581 PL_tmps_max = 32;
462 582
463 New(54,PL_markstack,32,I32); 583 New(54,PL_markstack,16,I32);
464 PL_markstack_ptr = PL_markstack; 584 PL_markstack_ptr = PL_markstack;
465 PL_markstack_max = PL_markstack + 32; 585 PL_markstack_max = PL_markstack + 16;
466 586
467#ifdef SET_MARK_OFFSET 587#ifdef SET_MARK_OFFSET
468 SET_MARK_OFFSET; 588 SET_MARK_OFFSET;
469#endif 589#endif
470 590
471 New(54,PL_scopestack,32,I32); 591 New(54,PL_scopestack,8,I32);
472 PL_scopestack_ix = 0; 592 PL_scopestack_ix = 0;
473 PL_scopestack_max = 32; 593 PL_scopestack_max = 8;
474 594
475 New(54,PL_savestack,64,ANY); 595 New(54,PL_savestack,24,ANY);
476 PL_savestack_ix = 0; 596 PL_savestack_ix = 0;
477 PL_savestack_max = 64; 597 PL_savestack_max = 24;
478 598
479#if !PERL_VERSION_ATLEAST (5,9,0) 599#if !PERL_VERSION_ATLEAST (5,9,0)
480 New(54,PL_retstack,16,OP*); 600 New(54,PL_retstack,4,OP*);
481 PL_retstack_ix = 0; 601 PL_retstack_ix = 0;
482 PL_retstack_max = 16; 602 PL_retstack_max = 4;
483#endif 603#endif
484} 604}
485#endif 605#endif
486 606
487/* 607/*
488 * destroy the stacks, the callchain etc... 608 * destroy the stacks, the callchain etc...
489 */ 609 */
490static void 610static void
491coro_destroy_stacks (pTHX) 611coro_destroy_stacks (pTHX)
492{ 612{
493 if (!IN_DESTRUCT)
494 {
495 /* restore all saved variables and stuff */
496 LEAVE_SCOPE (0);
497 assert (PL_tmps_floor == -1);
498
499 /* free all temporaries */
500 FREETMPS;
501 assert (PL_tmps_ix == -1);
502
503 /* unwind all extra stacks */
504 POPSTACK_TO (PL_mainstack);
505
506 /* unwind main stack */
507 dounwind (-1);
508 }
509
510 while (PL_curstackinfo->si_next) 613 while (PL_curstackinfo->si_next)
511 PL_curstackinfo = PL_curstackinfo->si_next; 614 PL_curstackinfo = PL_curstackinfo->si_next;
512 615
513 while (PL_curstackinfo) 616 while (PL_curstackinfo)
514 { 617 {
… …
529#if !PERL_VERSION_ATLEAST (5,9,0) 632#if !PERL_VERSION_ATLEAST (5,9,0)
530 Safefree (PL_retstack); 633 Safefree (PL_retstack);
531#endif 634#endif
532} 635}
533 636
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
534/** coroutine stack handling ************************************************/ 674/** coroutine stack handling ************************************************/
535 675
536static void 676static void
537setup_coro (pTHX_ struct coro *coro) 677coro_setup (pTHX_ struct coro *coro)
538{ 678{
539 /* 679 /*
540 * emulate part of the perl startup here. 680 * emulate part of the perl startup here.
541 */ 681 */
542 coro_init_stacks (aTHX); 682 coro_init_stacks (aTHX);
543 683
684 PL_runops = RUNOPS_DEFAULT;
544 PL_curcop = &PL_compiling; 685 PL_curcop = &PL_compiling;
545 PL_in_eval = EVAL_NULL; 686 PL_in_eval = EVAL_NULL;
546 PL_comppad = 0; 687 PL_comppad = 0;
547 PL_curpm = 0; 688 PL_curpm = 0;
689 PL_curpad = 0;
548 PL_localizing = 0; 690 PL_localizing = 0;
549 PL_dirty = 0; 691 PL_dirty = 0;
550 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);
551 702
552 { 703 {
553 dSP; 704 dSP;
554 LOGOP myop; 705 LOGOP myop;
555 706
556 SvREFCNT_dec (GvAV (PL_defgv));
557 GvAV (PL_defgv) = coro->args; coro->args = 0;
558
559 Zero (&myop, 1, LOGOP); 707 Zero (&myop, 1, LOGOP);
560 myop.op_next = Nullop; 708 myop.op_next = Nullop;
561 myop.op_flags = OPf_WANT_VOID; 709 myop.op_flags = OPf_WANT_VOID;
562 710
563 PUSHMARK (SP); 711 PUSHMARK (SP);
564 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 712 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
565 PUTBACK; 713 PUTBACK;
566 PL_op = (OP *)&myop; 714 PL_op = (OP *)&myop;
567 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 715 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568 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;
569 } 731 }
570 732
571 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);
572} 775}
573 776
574static void 777static void
575free_coro_mortal (pTHX) 778free_coro_mortal (pTHX)
576{ 779{
577 if (coro_mortal) 780 if (expect_true (coro_mortal))
578 { 781 {
579 SvREFCNT_dec (coro_mortal); 782 SvREFCNT_dec (coro_mortal);
580 coro_mortal = 0; 783 coro_mortal = 0;
581 } 784 }
582} 785}
583 786
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
584/* 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 */
912/* _cctx_init should be careful, as it could be called at almost any time */
913/* during execution of a perl program */
585static void NOINLINE 914static void NOINLINE
586prepare_cctx (pTHX_ coro_cctx *cctx) 915cctx_prepare (pTHX_ coro_cctx *cctx)
587{ 916{
588 dSP; 917 dSP;
589 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;
590 924
591 Zero (&myop, 1, LOGOP); 925 Zero (&myop, 1, LOGOP);
592 myop.op_next = PL_op; 926 myop.op_next = PL_op;
593 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 927 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
594 928
… …
600 PL_op = (OP *)&myop; 934 PL_op = (OP *)&myop;
601 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 935 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
602 SPAGAIN; 936 SPAGAIN;
603} 937}
604 938
939/*
940 * this is a _very_ stripped down perl interpreter ;)
941 */
605static void 942static void
606coro_run (void *arg) 943cctx_run (void *arg)
607{ 944{
608 dTHX; 945 dTHX;
609 946
610 /* coro_run is the alternative tail of transfer(), so unlock here. */ 947 /* cctx_run is the alternative tail of transfer(), so unlock here. */
611 UNLOCK; 948 UNLOCK;
612 949
613 /* 950 /* we now skip the entersub that lead to transfer() */
614 * this is a _very_ stripped down perl interpreter ;) 951 PL_op = PL_op->op_next;
615 */
616 PL_top_env = &PL_start_env;
617 952
618 /* inject call to cctx_init */ 953 /* inject a fake subroutine call to cctx_init */
619 prepare_cctx (aTHX_ (coro_cctx *)arg); 954 cctx_prepare (aTHX_ (coro_cctx *)arg);
620 955
621 /* somebody will hit me for both perl_run and PL_restartop */ 956 /* somebody or something will hit me for both perl_run and PL_restartop */
622 PL_restartop = PL_op; 957 PL_restartop = PL_op;
623 perl_run (PL_curinterp); 958 perl_run (PL_curinterp);
624 959
625 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 960 /*
626 abort (); 961 * If perl-run returns we assume exit() was being called or the coro
962 * fell off the end, which seems to be the only valid (non-bug)
963 * reason for perl_run to return. We try to exit by jumping to the
964 * bootstrap-time "top" top_env, as we cannot restore the "main"
965 * coroutine as Coro has no such concept
966 */
967 PL_top_env = main_top_env;
968 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
627} 969}
628 970
629static coro_cctx * 971static coro_cctx *
630cctx_new () 972cctx_new ()
631{ 973{
… …
636 ++cctx_count; 978 ++cctx_count;
637 979
638 Newz (0, cctx, 1, coro_cctx); 980 Newz (0, cctx, 1, coro_cctx);
639 981
640#if HAVE_MMAP 982#if HAVE_MMAP
641
642 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;
643 /* mmap supposedly does allocate-on-write for us */ 984 /* mmap supposedly does allocate-on-write for us */
644 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);
645 986
646 if (cctx->sptr != (void *)-1) 987 if (cctx->sptr != (void *)-1)
… …
648# if CORO_STACKGUARD 989# if CORO_STACKGUARD
649 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 990 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
650# endif 991# endif
651 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 992 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
652 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 993 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
653 cctx->mapped = 1; 994 cctx->flags |= CC_MAPPED;
654 } 995 }
655 else 996 else
656#endif 997#endif
657 { 998 {
658 cctx->ssize = coro_stacksize * (long)sizeof (long); 999 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
667 stack_start = cctx->sptr; 1008 stack_start = cctx->sptr;
668 stack_size = cctx->ssize; 1009 stack_size = cctx->ssize;
669 } 1010 }
670 1011
671 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1012 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
672 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);
673 1014
674 return cctx; 1015 return cctx;
675} 1016}
676 1017
677static void 1018static void
… …
685#if CORO_USE_VALGRIND 1026#if CORO_USE_VALGRIND
686 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1027 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
687#endif 1028#endif
688 1029
689#if HAVE_MMAP 1030#if HAVE_MMAP
690 if (cctx->mapped) 1031 if (cctx->flags & CC_MAPPED)
691 munmap (cctx->sptr, cctx->ssize); 1032 munmap (cctx->sptr, cctx->ssize);
692 else 1033 else
693#endif 1034#endif
694 Safefree (cctx->sptr); 1035 Safefree (cctx->sptr);
695 1036
696 Safefree (cctx); 1037 Safefree (cctx);
697} 1038}
698 1039
1040/* wether this cctx should be destructed */
1041#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1042
699static coro_cctx * 1043static coro_cctx *
700cctx_get (pTHX) 1044cctx_get (pTHX_ int gimme)
701{ 1045{
702 while (cctx_first) 1046 while (expect_true (cctx_first[gimme]))
703 { 1047 {
704 coro_cctx *cctx = cctx_first; 1048 coro_cctx *cctx = cctx_first[gimme];
705 cctx_first = cctx->next; 1049 cctx_first[gimme] = cctx->next;
706 --cctx_idle; 1050 --cctx_idle[gimme];
707 1051
708 if (cctx->ssize >= coro_stacksize) 1052 if (expect_true (!CCTX_EXPIRED (cctx)))
709 return cctx; 1053 return cctx;
710 1054
711 cctx_destroy (cctx); 1055 cctx_destroy (cctx);
712 } 1056 }
713 1057
714 PL_op = PL_op->op_next; 1058 assert (!gimme);
715 return cctx_new (); 1059 return cctx_new ();
716} 1060}
717 1061
718static void 1062static void
719cctx_put (coro_cctx *cctx) 1063cctx_put (coro_cctx *cctx, int gimme)
720{ 1064{
721 /* free another cctx if overlimit */ 1065 /* free another cctx if overlimit */
722 if (cctx_idle >= MAX_IDLE_CCTX) 1066 if (expect_false (cctx_idle[gimme] >= MAX_IDLE_CCTX))
723 { 1067 {
724 coro_cctx *first = cctx_first; 1068 coro_cctx *first = cctx_first[gimme];
725 cctx_first = first->next; 1069 cctx_first[gimme] = first->next;
726 --cctx_idle; 1070 --cctx_idle[gimme];
727 1071
728 assert (!first->inuse);
729 cctx_destroy (first); 1072 cctx_destroy (first);
730 } 1073 }
731 1074
732 ++cctx_idle; 1075 ++cctx_idle[gimme];
733 cctx->next = cctx_first; 1076 cctx->next = cctx_first[gimme];
734 cctx_first = cctx; 1077 cctx_first[gimme] = cctx;
735} 1078}
736 1079
737/** coroutine switching *****************************************************/ 1080/** coroutine switching *****************************************************/
738 1081
739/* 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 */
740static void NOINLINE 1108static void NOINLINE
741transfer (pTHX_ struct coro *prev, struct coro *next) 1109transfer (pTHX_ struct coro *prev, struct coro *next)
742{ 1110{
743 dSTACKLEVEL; 1111 dSTACKLEVEL;
744 1112
745 /* sometimes transfer is only called to set idle_sp */ 1113 /* sometimes transfer is only called to set idle_sp */
746 if (!next) 1114 if (expect_false (!next))
747 { 1115 {
748 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1116 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
749 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 */
750 } 1118 }
751 else if (prev != next) 1119 else if (expect_true (prev != next))
752 { 1120 {
753 coro_cctx *prev__cctx; 1121 coro_cctx *prev__cctx;
754 1122
755 if (prev->flags & CF_NEW) 1123 if (expect_false (prev->flags & CF_NEW))
756 { 1124 {
757 /* create a new empty context */ 1125 /* create a new empty context */
758 Newz (0, prev->cctx, 1, coro_cctx); 1126 Newz (0, prev->cctx, 1, coro_cctx);
759 prev->cctx->inuse = 1;
760 prev->flags &= ~CF_NEW; 1127 prev->flags &= ~CF_NEW;
761 prev->flags |= CF_RUNNING; 1128 prev->flags |= CF_RUNNING;
762 } 1129 }
763 1130
764 /*TODO: must not croak here */
765 if (!prev->flags & CF_RUNNING)
766 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
767
768 if (next->flags & CF_RUNNING)
769 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
770
771 if (next->flags & CF_DESTROYED)
772 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
773
774 prev->flags &= ~CF_RUNNING; 1131 prev->flags &= ~CF_RUNNING;
775 next->flags |= CF_RUNNING; 1132 next->flags |= CF_RUNNING;
776 1133
777 LOCK; 1134 LOCK;
778 1135
779 if (next->flags & CF_NEW) 1136 if (expect_false (next->flags & CF_NEW))
780 { 1137 {
781 /* need to start coroutine */ 1138 /* need to start coroutine */
782 next->flags &= ~CF_NEW; 1139 next->flags &= ~CF_NEW;
783 /* first get rid of the old state */ 1140 /* first get rid of the old state */
784 save_perl (aTHX_ prev); 1141 save_perl (aTHX_ prev);
785 /* setup coroutine call */ 1142 /* setup coroutine call */
786 setup_coro (aTHX_ next); 1143 coro_setup (aTHX_ next);
787 /* need a new stack */
788 assert (!next->cctx);
789 } 1144 }
790 else 1145 else
791 { 1146 {
792 /* coroutine already started */ 1147 /* coroutine already started */
793 save_perl (aTHX_ prev); 1148 save_perl (aTHX_ prev);
… …
795 } 1150 }
796 1151
797 prev__cctx = prev->cctx; 1152 prev__cctx = prev->cctx;
798 1153
799 /* possibly "free" the cctx */ 1154 /* possibly "free" the cctx */
800 if (prev__cctx->idle_sp == STACKLEVEL) 1155 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
801 { 1156 {
802 /* 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 */
803 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));
804 1159
805 prev->cctx = 0; 1160 prev->cctx = 0;
806 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
807 cctx_put (prev__cctx); 1168 cctx_put (prev__cctx, prev->gimme);
808 prev__cctx->inuse = 0;
809 } 1169 }
810 1170
1171 ++next->usecount;
1172
811 if (!next->cctx) 1173 if (expect_true (!next->cctx))
812 {
813 next->cctx = cctx_get (aTHX); 1174 next->cctx = cctx_get (aTHX_ next->gimme);
814 assert (!next->cctx->inuse);
815 next->cctx->inuse = 1;
816 }
817 1175
818 if (prev__cctx != next->cctx) 1176 if (expect_false (prev__cctx != next->cctx))
819 { 1177 {
820 prev__cctx->top_env = PL_top_env; 1178 prev__cctx->top_env = PL_top_env;
821 PL_top_env = next->cctx->top_env; 1179 PL_top_env = next->cctx->top_env;
822 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1180 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
823 } 1181 }
824 1182
825 free_coro_mortal (aTHX); 1183 free_coro_mortal (aTHX);
826 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 }
827 } 1198 }
828} 1199}
829 1200
830struct transfer_args 1201struct transfer_args
831{ 1202{
832 struct coro *prev, *next; 1203 struct coro *prev, *next;
833}; 1204};
834 1205
835#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)
836 1208
837/** high level stuff ********************************************************/ 1209/** high level stuff ********************************************************/
838 1210
839static int 1211static int
840coro_state_destroy (pTHX_ struct coro *coro) 1212coro_state_destroy (pTHX_ struct coro *coro)
… …
857 1229
858 if (coro->mainstack && coro->mainstack != main_mainstack) 1230 if (coro->mainstack && coro->mainstack != main_mainstack)
859 { 1231 {
860 struct coro temp; 1232 struct coro temp;
861 1233
862 assert (!(coro->flags & CF_RUNNING));
863
864 Zero (&temp, 1, struct coro);
865 temp.save = CORO_SAVE_ALL;
866
867 if (coro->flags & CF_RUNNING) 1234 if (coro->flags & CF_RUNNING)
868 croak ("FATAL: tried to destroy currently running coroutine"); 1235 croak ("FATAL: tried to destroy currently running coroutine");
869 1236
870 save_perl (aTHX_ &temp); 1237 save_perl (aTHX_ &temp);
871 load_perl (aTHX_ coro); 1238 load_perl (aTHX_ coro);
872 1239
873 coro_destroy_stacks (aTHX); 1240 coro_destroy (aTHX_ coro);
874 1241
875 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1242 load_perl (aTHX_ &temp);
876 1243
877 coro->mainstack = 0; 1244 coro->slot = 0;
878 } 1245 }
879 1246
880 cctx_destroy (coro->cctx); 1247 cctx_destroy (coro->cctx);
881 SvREFCNT_dec (coro->args); 1248 SvREFCNT_dec (coro->args);
882 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
883 return 1; 1254 return 1;
884} 1255}
885 1256
886static int 1257static int
887coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1258coro_state_free (pTHX_ SV *sv, MAGIC *mg)
888{ 1259{
889 struct coro *coro = (struct coro *)mg->mg_ptr; 1260 struct coro *coro = (struct coro *)mg->mg_ptr;
890 mg->mg_ptr = 0; 1261 mg->mg_ptr = 0;
1262
1263 coro->hv = 0;
891 1264
892 if (--coro->refcnt < 0) 1265 if (--coro->refcnt < 0)
893 { 1266 {
894 coro_state_destroy (aTHX_ coro); 1267 coro_state_destroy (aTHX_ coro);
895 Safefree (coro); 1268 Safefree (coro);
… …
917#else 1290#else
918# define MGf_DUP 0 1291# define MGf_DUP 0
919#endif 1292#endif
920}; 1293};
921 1294
922static struct coro *
923SvSTATE_ (pTHX_ SV *coro)
924{
925 HV *stash;
926 MAGIC *mg;
927
928 if (SvROK (coro))
929 coro = SvRV (coro);
930
931 stash = SvSTASH (coro);
932 if (stash != coro_stash && stash != coro_state_stash)
933 {
934 /* very slow, but rare, check */
935 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
936 croak ("Coro::State object required");
937 }
938
939 mg = CORO_MAGIC (coro);
940 return (struct coro *)mg->mg_ptr;
941}
942
943#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
944
945static void 1295static void
946prepare_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)
947{ 1297{
948 ta->prev = SvSTATE (prev_sv); 1298 ta->prev = SvSTATE (prev_sv);
949 ta->next = SvSTATE (next_sv); 1299 ta->next = SvSTATE (next_sv);
1300 TRANSFER_CHECK (*ta);
950} 1301}
951 1302
952static void 1303static void
953api_transfer (SV *prev_sv, SV *next_sv) 1304api_transfer (SV *prev_sv, SV *next_sv)
954{ 1305{
955 dTHX; 1306 dTHX;
956 struct transfer_args ta; 1307 struct transfer_args ta;
957 1308
958 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1309 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
959 TRANSFER (ta); 1310 TRANSFER (ta);
960}
961
962static int
963api_save (SV *coro_sv, int new_save)
964{
965 dTHX;
966 struct coro *coro = SvSTATE (coro_sv);
967 int old_save = coro->save;
968
969 if (new_save >= 0)
970 coro->save = new_save;
971
972 return old_save;
973} 1311}
974 1312
975/** Coro ********************************************************************/ 1313/** Coro ********************************************************************/
976 1314
977static void 1315static void
… …
1036 { 1374 {
1037 LOCK; 1375 LOCK;
1038 next_sv = coro_deq (aTHX_ PRIO_MIN); 1376 next_sv = coro_deq (aTHX_ PRIO_MIN);
1039 1377
1040 /* nothing to schedule: call the idle handler */ 1378 /* nothing to schedule: call the idle handler */
1041 if (!next_sv) 1379 if (expect_false (!next_sv))
1042 { 1380 {
1043 dSP; 1381 dSP;
1044 UNLOCK; 1382 UNLOCK;
1045 1383
1046 ENTER; 1384 ENTER;
… …
1056 } 1394 }
1057 1395
1058 ta->next = SvSTATE (next_sv); 1396 ta->next = SvSTATE (next_sv);
1059 1397
1060 /* cannot transfer to destroyed coros, skip and look for next */ 1398 /* cannot transfer to destroyed coros, skip and look for next */
1061 if (ta->next->flags & CF_DESTROYED) 1399 if (expect_false (ta->next->flags & CF_DESTROYED))
1062 { 1400 {
1063 UNLOCK; 1401 UNLOCK;
1064 SvREFCNT_dec (next_sv); 1402 SvREFCNT_dec (next_sv);
1065 /* coro_nready is already taken care of by destroy */ 1403 /* coro_nready is already taken care of by destroy */
1066 continue; 1404 continue;
… …
1071 break; 1409 break;
1072 } 1410 }
1073 1411
1074 /* free this only after the transfer */ 1412 /* free this only after the transfer */
1075 prev_sv = SvRV (coro_current); 1413 prev_sv = SvRV (coro_current);
1076 SvRV_set (coro_current, next_sv);
1077 ta->prev = SvSTATE (prev_sv); 1414 ta->prev = SvSTATE (prev_sv);
1078 1415 TRANSFER_CHECK (*ta);
1079 assert (ta->next->flags & CF_READY); 1416 assert (ta->next->flags & CF_READY);
1080 ta->next->flags &= ~CF_READY; 1417 ta->next->flags &= ~CF_READY;
1418 SvRV_set (coro_current, next_sv);
1081 1419
1082 LOCK; 1420 LOCK;
1083 free_coro_mortal (aTHX); 1421 free_coro_mortal (aTHX);
1084 coro_mortal = prev_sv; 1422 coro_mortal = prev_sv;
1085 UNLOCK; 1423 UNLOCK;
… …
1122 dTHX; 1460 dTHX;
1123 struct transfer_args ta; 1461 struct transfer_args ta;
1124 1462
1125 prepare_cede (aTHX_ &ta); 1463 prepare_cede (aTHX_ &ta);
1126 1464
1127 if (ta.prev != ta.next) 1465 if (expect_true (ta.prev != ta.next))
1128 { 1466 {
1129 TRANSFER (ta); 1467 TRANSFER (ta);
1130 return 1; 1468 return 1;
1131 } 1469 }
1132 else 1470 else
… …
1146 } 1484 }
1147 else 1485 else
1148 return 0; 1486 return 0;
1149} 1487}
1150 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
1151MODULE = Coro::State PACKAGE = Coro::State 1515MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1152 1516
1153PROTOTYPES: DISABLE 1517PROTOTYPES: DISABLE
1154 1518
1155BOOT: 1519BOOT:
1156{ 1520{
1157#ifdef USE_ITHREADS 1521#ifdef USE_ITHREADS
1158 MUTEX_INIT (&coro_mutex); 1522 MUTEX_INIT (&coro_mutex);
1159#endif 1523#endif
1160 BOOT_PAGESIZE; 1524 BOOT_PAGESIZE;
1161 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
1162 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1536 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1163 1537
1538 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1539 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1164 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1540 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1165 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1166 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1167 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1168 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1541 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1169 1542
1170 main_mainstack = PL_mainstack; 1543 main_mainstack = PL_mainstack;
1544 main_top_env = PL_top_env;
1545
1546 while (main_top_env->je_prev)
1547 main_top_env = main_top_env->je_prev;
1171 1548
1172 coroapi.ver = CORO_API_VERSION; 1549 coroapi.ver = CORO_API_VERSION;
1550 coroapi.rev = CORO_API_REVISION;
1173 coroapi.transfer = api_transfer; 1551 coroapi.transfer = api_transfer;
1174 1552
1175 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1553 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1176} 1554}
1177 1555
… …
1182 struct coro *coro; 1560 struct coro *coro;
1183 HV *hv; 1561 HV *hv;
1184 int i; 1562 int i;
1185 1563
1186 Newz (0, coro, 1, struct coro); 1564 Newz (0, coro, 1, struct coro);
1187 coro->args = newAV (); 1565 coro->args = newAV ();
1188 coro->save = CORO_SAVE_ALL;
1189 coro->flags = CF_NEW; 1566 coro->flags = CF_NEW;
1190 1567
1568 if (coro_first) coro_first->prev = coro;
1569 coro->next = coro_first;
1570 coro_first = coro;
1571
1191 hv = newHV (); 1572 coro->hv = hv = newHV ();
1192 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;
1193 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1574 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1194 1575
1576 av_extend (coro->args, items - 1);
1195 for (i = 1; i < items; i++) 1577 for (i = 1; i < items; i++)
1196 av_push (coro->args, newSVsv (ST (i))); 1578 av_push (coro->args, newSVsv (ST (i)));
1197} 1579}
1198 OUTPUT: 1580 OUTPUT:
1199 RETVAL 1581 RETVAL
1200 1582
1201int 1583# these not obviously related functions are all rolled into the same xs
1202save (SV *coro, int new_save = -1) 1584# function to increase chances that they all will call transfer with the same
1203 CODE: 1585# stack offset
1204 RETVAL = api_save (coro, new_save);
1205 OUTPUT:
1206 RETVAL
1207
1208void 1586void
1209_set_stacklevel (...) 1587_set_stacklevel (...)
1210 ALIAS: 1588 ALIAS:
1211 Coro::State::transfer = 1 1589 Coro::State::transfer = 1
1212 Coro::schedule = 2 1590 Coro::schedule = 2
… …
1244 1622
1245 break; 1623 break;
1246 } 1624 }
1247 1625
1248 BARRIER; 1626 BARRIER;
1627 PUTBACK;
1249 TRANSFER (ta); 1628 TRANSFER (ta);
1250 1629 SPAGAIN; /* might be the sp of a different coroutine now */
1251 if (GIMME_V != G_VOID && ta.next != ta.prev) 1630 /* be extra careful not to ever do anything after TRANSFER */
1252 XSRETURN_YES;
1253} 1631}
1254 1632
1255bool 1633bool
1256_destroy (SV *coro_sv) 1634_destroy (SV *coro_sv)
1257 CODE: 1635 CODE:
… …
1283 RETVAL 1661 RETVAL
1284 1662
1285int 1663int
1286cctx_idle () 1664cctx_idle ()
1287 CODE: 1665 CODE:
1288 RETVAL = cctx_idle; 1666 RETVAL = cctx_idle[0] + cctx_idle[1] + cctx_idle[2];
1289 OUTPUT: 1667 OUTPUT:
1290 RETVAL 1668 RETVAL
1291 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
1292MODULE = Coro::State PACKAGE = Coro 1770MODULE = Coro::State PACKAGE = Coro
1293 1771
1294BOOT: 1772BOOT:
1295{ 1773{
1296 int i; 1774 int i;
1297 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
1298 coro_stash = gv_stashpv ("Coro", TRUE); 1783 coro_stash = gv_stashpv ("Coro", TRUE);
1299 1784
1300 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1785 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1301 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1786 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1302 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1787 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1303 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1788 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1304 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1789 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1305 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1790 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1306 1791
1307 coro_current = get_sv ("Coro::current", FALSE);
1308 SvREADONLY_on (coro_current);
1309
1310 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1792 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1311 coro_ready[i] = newAV (); 1793 coro_ready[i] = newAV ();
1312 1794
1313 { 1795 {
1314 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 */
1315 1798
1316 coroapi.schedule = api_schedule; 1799 coroapi.schedule = api_schedule;
1317 coroapi.save = api_save;
1318 coroapi.cede = api_cede; 1800 coroapi.cede = api_cede;
1319 coroapi.cede_notself = api_cede_notself; 1801 coroapi.cede_notself = api_cede_notself;
1320 coroapi.ready = api_ready; 1802 coroapi.ready = api_ready;
1321 coroapi.is_ready = api_is_ready; 1803 coroapi.is_ready = api_is_ready;
1322 coroapi.nready = &coro_nready; 1804 coroapi.nready = &coro_nready;
… …
1363 CODE: 1845 CODE:
1364 RETVAL = boolSV (api_ready (self)); 1846 RETVAL = boolSV (api_ready (self));
1365 OUTPUT: 1847 OUTPUT:
1366 RETVAL 1848 RETVAL
1367 1849
1368SV *
1369is_ready (SV *self)
1370 PROTOTYPE: $
1371 CODE:
1372 RETVAL = boolSV (api_is_ready (self));
1373 OUTPUT:
1374 RETVAL
1375
1376int 1850int
1377nready (...) 1851nready (...)
1378 PROTOTYPE: 1852 PROTOTYPE:
1379 CODE: 1853 CODE:
1380 RETVAL = coro_nready; 1854 RETVAL = coro_nready;
1381 OUTPUT: 1855 OUTPUT:
1382 RETVAL 1856 RETVAL
1383 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
1384MODULE = Coro::State PACKAGE = Coro::AIO 1929MODULE = Coro::State PACKAGE = Coro::AIO
1385 1930
1386SV * 1931SV *
1387_get_state () 1932_get_state ()
1388 CODE: 1933 CODE:

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