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Comparing Coro/Coro/State.xs (file contents):
Revision 1.149 by root, Sat Apr 14 15:06:05 2007 UTC vs.
Revision 1.214 by root, Sat Oct 13 23:19:10 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
… …
133static AV *main_mainstack; /* used to differentiate between $main and others */ 147static AV *main_mainstack; /* used to differentiate between $main and others */
134static JMPENV *main_top_env; 148static JMPENV *main_top_env;
135static HV *coro_state_stash, *coro_stash; 149static HV *coro_state_stash, *coro_stash;
136static SV *coro_mortal; /* will be freed after next transfer */ 150static SV *coro_mortal; /* will be freed after next transfer */
137 151
152static GV *irsgv; /* $/ */
153static GV *stdoutgv; /* *STDOUT */
154static SV *rv_diehook;
155static SV *rv_warnhook;
156static HV *hv_sig; /* %SIG */
157
158/* async_pool helper stuff */
159static SV *sv_pool_rss;
160static SV *sv_pool_size;
161static AV *av_async_pool;
162
138static struct coro_cctx *cctx_first; 163static struct coro_cctx *cctx_first;
139static int cctx_count, cctx_idle; 164static int cctx_count, cctx_idle;
165
166enum {
167 CC_MAPPED = 0x01,
168 CC_NOREUSE = 0x02, /* throw this away after tracing */
169 CC_TRACE = 0x04,
170 CC_TRACE_SUB = 0x08, /* trace sub calls */
171 CC_TRACE_LINE = 0x10, /* trace each statement */
172 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
173};
140 174
141/* this is a structure representing a c-level coroutine */ 175/* this is a structure representing a c-level coroutine */
142typedef struct coro_cctx { 176typedef struct coro_cctx {
143 struct coro_cctx *next; 177 struct coro_cctx *next;
144 178
… …
153 coro_context cctx; 187 coro_context cctx;
154 188
155#if CORO_USE_VALGRIND 189#if CORO_USE_VALGRIND
156 int valgrind_id; 190 int valgrind_id;
157#endif 191#endif
158 char inuse, mapped; 192 unsigned char flags;
159} coro_cctx; 193} coro_cctx;
160 194
161enum { 195enum {
162 CF_RUNNING = 0x0001, /* coroutine is running */ 196 CF_RUNNING = 0x0001, /* coroutine is running */
163 CF_READY = 0x0002, /* coroutine is ready */ 197 CF_READY = 0x0002, /* coroutine is ready */
164 CF_NEW = 0x0004, /* has never been switched to */ 198 CF_NEW = 0x0004, /* has never been switched to */
165 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 199 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
166}; 200};
167 201
202/* the structure where most of the perl state is stored, overlaid on the cxstack */
203typedef struct {
204 SV *defsv;
205 AV *defav;
206 SV *errsv;
207 SV *irsgv;
208#define VAR(name,type) type name;
209# include "state.h"
210#undef VAR
211} perl_slots;
212
213#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
214
168/* this is a structure representing a perl-level coroutine */ 215/* this is a structure representing a perl-level coroutine */
169struct coro { 216struct coro {
170 /* the c coroutine allocated to this perl coroutine, if any */ 217 /* the c coroutine allocated to this perl coroutine, if any */
171 coro_cctx *cctx; 218 coro_cctx *cctx;
172 219
220 /* process data */
221 AV *mainstack;
222 perl_slots *slot; /* basically the saved sp */
223
173 /* data associated with this coroutine (initial args) */ 224 AV *args; /* data associated with this coroutine (initial args) */
174 AV *args; 225 int refcnt; /* coroutines are refcounted, yes */
175 int refcnt;
176 int save; /* CORO_SAVE flags */
177 int flags; /* CF_ flags */ 226 int flags; /* CF_ flags */
227 HV *hv; /* the perl hash associated with this coro, if any */
178 228
179 /* optionally saved, might be zero */ 229 /* statistics */
180 AV *defav; /* @_ */ 230 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
190 231
191 /* coro process data */ 232 /* coro process data */
192 int prio; 233 int prio;
234 SV *throw; /* exception to be thrown */
235
236 /* async_pool */
237 SV *saved_deffh;
238
239 /* linked list */
240 struct coro *next, *prev;
193}; 241};
194 242
195typedef struct coro *Coro__State; 243typedef struct coro *Coro__State;
196typedef struct coro *Coro__State_or_hashref; 244typedef struct coro *Coro__State_or_hashref;
197 245
… …
206 254
207/* for Coro.pm */ 255/* for Coro.pm */
208static SV *coro_current; 256static SV *coro_current;
209static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 257static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
210static int coro_nready; 258static int coro_nready;
259static struct coro *coro_first;
211 260
212/** lowlevel stuff **********************************************************/ 261/** lowlevel stuff **********************************************************/
262
263static SV *
264coro_get_sv (pTHX_ const char *name, int create)
265{
266#if PERL_VERSION_ATLEAST (5,9,0)
267 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
268 get_sv (name, create);
269#endif
270 return get_sv (name, create);
271}
272
273static AV *
274coro_get_av (pTHX_ const char *name, int create)
275{
276#if PERL_VERSION_ATLEAST (5,9,0)
277 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
278 get_av (name, create);
279#endif
280 return get_av (name, create);
281}
282
283static HV *
284coro_get_hv (pTHX_ const char *name, int create)
285{
286#if PERL_VERSION_ATLEAST (5,9,0)
287 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
288 get_hv (name, create);
289#endif
290 return get_hv (name, create);
291}
213 292
214static AV * 293static AV *
215coro_clone_padlist (pTHX_ CV *cv) 294coro_clone_padlist (pTHX_ CV *cv)
216{ 295{
217 AV *padlist = CvPADLIST (cv); 296 AV *padlist = CvPADLIST (cv);
… …
265 344
266 /* casting is fun. */ 345 /* casting is fun. */
267 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 346 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
268 free_padlist (aTHX_ padlist); 347 free_padlist (aTHX_ padlist);
269 348
270 SvREFCNT_dec (av);
271
272 return 0; 349 return 0;
273} 350}
274 351
275#define PERL_MAGIC_coro PERL_MAGIC_ext 352#define CORO_MAGIC_type_cv PERL_MAGIC_ext
353#define CORO_MAGIC_type_state PERL_MAGIC_ext
276 354
277static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; 355static MGVTBL coro_cv_vtbl = {
356 0, 0, 0, 0,
357 coro_cv_free
358};
278 359
279#define CORO_MAGIC(cv) \ 360#define CORO_MAGIC(sv,type) \
280 SvMAGIC (cv) \ 361 SvMAGIC (sv) \
281 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 362 ? SvMAGIC (sv)->mg_type == type \
282 ? SvMAGIC (cv) \ 363 ? SvMAGIC (sv) \
283 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 364 : mg_find (sv, type) \
284 : 0 365 : 0
285 366
367#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
368#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
369
370static struct coro *
371SvSTATE_ (pTHX_ SV *coro)
372{
373 HV *stash;
374 MAGIC *mg;
375
376 if (SvROK (coro))
377 coro = SvRV (coro);
378
379 if (expect_false (SvTYPE (coro) != SVt_PVHV))
380 croak ("Coro::State object required");
381
382 stash = SvSTASH (coro);
383 if (expect_false (stash != coro_stash && stash != coro_state_stash))
384 {
385 /* very slow, but rare, check */
386 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
387 croak ("Coro::State object required");
388 }
389
390 mg = CORO_MAGIC_state (coro);
391 return (struct coro *)mg->mg_ptr;
392}
393
394#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
395
286/* the next two functions merely cache the padlists */ 396/* the next two functions merely cache the padlists */
287static void 397static void
288get_padlist (pTHX_ CV *cv) 398get_padlist (pTHX_ CV *cv)
289{ 399{
290 MAGIC *mg = CORO_MAGIC (cv); 400 MAGIC *mg = CORO_MAGIC_cv (cv);
291 AV *av; 401 AV *av;
292 402
293 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 403 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
294 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 404 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
295 else 405 else
296 { 406 {
297#if CORO_PREFER_PERL_FUNCTIONS 407#if CORO_PREFER_PERL_FUNCTIONS
298 /* this is probably cleaner, but also slower? */ 408 /* this is probably cleaner, but also slower? */
… …
307} 417}
308 418
309static void 419static void
310put_padlist (pTHX_ CV *cv) 420put_padlist (pTHX_ CV *cv)
311{ 421{
312 MAGIC *mg = CORO_MAGIC (cv); 422 MAGIC *mg = CORO_MAGIC_cv (cv);
313 AV *av; 423 AV *av;
314 424
315 if (!mg) 425 if (expect_false (!mg))
316 { 426 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
317 sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
318 mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
319 mg->mg_virtual = &vtbl_coro;
320 mg->mg_obj = (SV *)newAV ();
321 }
322 427
323 av = (AV *)mg->mg_obj; 428 av = (AV *)mg->mg_obj;
324 429
325 if (AvFILLp (av) >= AvMAX (av)) 430 if (expect_false (AvFILLp (av) >= AvMAX (av)))
326 av_extend (av, AvMAX (av) + 1); 431 av_extend (av, AvMAX (av) + 1);
327 432
328 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 433 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
329} 434}
330 435
331/** load & save, init *******************************************************/ 436/** load & save, init *******************************************************/
332 437
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 438static void
339load_perl (pTHX_ Coro__State c) 439load_perl (pTHX_ Coro__State c)
340{ 440{
441 perl_slots *slot = c->slot;
442 c->slot = 0;
443
444 PL_mainstack = c->mainstack;
445
446 GvSV (PL_defgv) = slot->defsv;
447 GvAV (PL_defgv) = slot->defav;
448 GvSV (PL_errgv) = slot->errsv;
449 GvSV (irsgv) = slot->irsgv;
450
341#define VAR(name,type) PL_ ## name = c->name; 451 #define VAR(name,type) PL_ ## name = slot->name;
342# include "state.h" 452 # include "state.h"
343#undef VAR 453 #undef VAR
344
345 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
346 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
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 }
364 454
365 { 455 {
366 dSP; 456 dSP;
457
367 CV *cv; 458 CV *cv;
368 459
369 /* now do the ugly restore mess */ 460 /* now do the ugly restore mess */
370 while ((cv = (CV *)POPs)) 461 while (expect_true (cv = (CV *)POPs))
371 { 462 {
372 put_padlist (aTHX_ cv); /* mark this padlist as available */ 463 put_padlist (aTHX_ cv); /* mark this padlist as available */
373 CvDEPTH (cv) = PTR2IV (POPs); 464 CvDEPTH (cv) = PTR2IV (POPs);
374 CvPADLIST (cv) = (AV *)POPs; 465 CvPADLIST (cv) = (AV *)POPs;
375 } 466 }
376 467
377 PUTBACK; 468 PUTBACK;
378 } 469 }
379 assert (!PL_comppad || AvARRAY (PL_comppad));//D
380} 470}
381 471
382static void 472static void
383save_perl (pTHX_ Coro__State c) 473save_perl (pTHX_ Coro__State c)
384{ 474{
385 assert (!PL_comppad || AvARRAY (PL_comppad));//D
386 { 475 {
387 dSP; 476 dSP;
388 I32 cxix = cxstack_ix; 477 I32 cxix = cxstack_ix;
389 PERL_CONTEXT *ccstk = cxstack; 478 PERL_CONTEXT *ccstk = cxstack;
390 PERL_SI *top_si = PL_curstackinfo; 479 PERL_SI *top_si = PL_curstackinfo;
… …
392 /* 481 /*
393 * the worst thing you can imagine happens first - we have to save 482 * the worst thing you can imagine happens first - we have to save
394 * (and reinitialize) all cv's in the whole callchain :( 483 * (and reinitialize) all cv's in the whole callchain :(
395 */ 484 */
396 485
397 EXTEND (SP, 3 + 1);
398 PUSHs (Nullsv); 486 XPUSHs (Nullsv);
399 /* this loop was inspired by pp_caller */ 487 /* this loop was inspired by pp_caller */
400 for (;;) 488 for (;;)
401 { 489 {
402 while (cxix >= 0) 490 while (expect_true (cxix >= 0))
403 { 491 {
404 PERL_CONTEXT *cx = &ccstk[cxix--]; 492 PERL_CONTEXT *cx = &ccstk[cxix--];
405 493
406 if (CxTYPE (cx) == CXt_SUB) 494 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT))
407 { 495 {
408 CV *cv = cx->blk_sub.cv; 496 CV *cv = cx->blk_sub.cv;
409 497
410 if (CvDEPTH (cv)) 498 if (expect_true (CvDEPTH (cv)))
411 { 499 {
412 EXTEND (SP, 3); 500 EXTEND (SP, 3);
413 PUSHs ((SV *)CvPADLIST (cv)); 501 PUSHs ((SV *)CvPADLIST (cv));
414 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 502 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
415 PUSHs ((SV *)cv); 503 PUSHs ((SV *)cv);
… …
418 get_padlist (aTHX_ cv); 506 get_padlist (aTHX_ cv);
419 } 507 }
420 } 508 }
421 } 509 }
422 510
423 if (top_si->si_type == PERLSI_MAIN) 511 if (expect_true (top_si->si_type == PERLSI_MAIN))
424 break; 512 break;
425 513
426 top_si = top_si->si_prev; 514 top_si = top_si->si_prev;
427 ccstk = top_si->si_cxstack; 515 ccstk = top_si->si_cxstack;
428 cxix = top_si->si_cxix; 516 cxix = top_si->si_cxix;
429 } 517 }
430 518
431 PUTBACK; 519 PUTBACK;
432 } 520 }
433 521
434 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 522 /* allocate some space on the context stack for our purposes */
435 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 523 /* we manually unroll here, as usually 2 slots is enough */
436 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 524 if (SLOT_COUNT >= 1) CXINC;
437 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; 525 if (SLOT_COUNT >= 2) CXINC;
438 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 526 if (SLOT_COUNT >= 3) CXINC;
527 {
528 int i;
529 for (i = 3; i < SLOT_COUNT; ++i)
530 CXINC;
531 }
532 cxstack_ix -= SLOT_COUNT; /* undo allocation */
439 533
534 c->mainstack = PL_mainstack;
535
536 {
537 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
538
539 slot->defav = GvAV (PL_defgv);
540 slot->defsv = DEFSV;
541 slot->errsv = ERRSV;
542 slot->irsgv = GvSV (irsgv);
543
440#define VAR(name,type)c->name = PL_ ## name; 544 #define VAR(name,type) slot->name = PL_ ## name;
441# include "state.h" 545 # include "state.h"
442#undef VAR 546 #undef VAR
547 }
443} 548}
444 549
445/* 550/*
446 * allocate various perl stacks. This is an exact copy 551 * allocate various perl stacks. This is an exact copy
447 * of perl.c:init_stacks, except that it uses less memory 552 * of perl.c:init_stacks, except that it uses less memory
… …
452# define coro_init_stacks init_stacks 557# define coro_init_stacks init_stacks
453#else 558#else
454static void 559static void
455coro_init_stacks (pTHX) 560coro_init_stacks (pTHX)
456{ 561{
457 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 562 PL_curstackinfo = new_stackinfo(32, 8);
458 PL_curstackinfo->si_type = PERLSI_MAIN; 563 PL_curstackinfo->si_type = PERLSI_MAIN;
459 PL_curstack = PL_curstackinfo->si_stack; 564 PL_curstack = PL_curstackinfo->si_stack;
460 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 565 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
461 566
462 PL_stack_base = AvARRAY(PL_curstack); 567 PL_stack_base = AvARRAY(PL_curstack);
463 PL_stack_sp = PL_stack_base; 568 PL_stack_sp = PL_stack_base;
464 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 569 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
465 570
466 New(50,PL_tmps_stack,128,SV*); 571 New(50,PL_tmps_stack,32,SV*);
467 PL_tmps_floor = -1; 572 PL_tmps_floor = -1;
468 PL_tmps_ix = -1; 573 PL_tmps_ix = -1;
469 PL_tmps_max = 128; 574 PL_tmps_max = 32;
470 575
471 New(54,PL_markstack,32,I32); 576 New(54,PL_markstack,16,I32);
472 PL_markstack_ptr = PL_markstack; 577 PL_markstack_ptr = PL_markstack;
473 PL_markstack_max = PL_markstack + 32; 578 PL_markstack_max = PL_markstack + 16;
474 579
475#ifdef SET_MARK_OFFSET 580#ifdef SET_MARK_OFFSET
476 SET_MARK_OFFSET; 581 SET_MARK_OFFSET;
477#endif 582#endif
478 583
479 New(54,PL_scopestack,32,I32); 584 New(54,PL_scopestack,8,I32);
480 PL_scopestack_ix = 0; 585 PL_scopestack_ix = 0;
481 PL_scopestack_max = 32; 586 PL_scopestack_max = 8;
482 587
483 New(54,PL_savestack,64,ANY); 588 New(54,PL_savestack,24,ANY);
484 PL_savestack_ix = 0; 589 PL_savestack_ix = 0;
485 PL_savestack_max = 64; 590 PL_savestack_max = 24;
486 591
487#if !PERL_VERSION_ATLEAST (5,9,0) 592#if !PERL_VERSION_ATLEAST (5,9,0)
488 New(54,PL_retstack,16,OP*); 593 New(54,PL_retstack,4,OP*);
489 PL_retstack_ix = 0; 594 PL_retstack_ix = 0;
490 PL_retstack_max = 16; 595 PL_retstack_max = 4;
491#endif 596#endif
492} 597}
493#endif 598#endif
494 599
495/* 600/*
496 * destroy the stacks, the callchain etc... 601 * destroy the stacks, the callchain etc...
497 */ 602 */
498static void 603static void
499coro_destroy_stacks (pTHX) 604coro_destroy_stacks (pTHX)
500{ 605{
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) 606 while (PL_curstackinfo->si_next)
519 PL_curstackinfo = PL_curstackinfo->si_next; 607 PL_curstackinfo = PL_curstackinfo->si_next;
520 608
521 while (PL_curstackinfo) 609 while (PL_curstackinfo)
522 { 610 {
… …
537#if !PERL_VERSION_ATLEAST (5,9,0) 625#if !PERL_VERSION_ATLEAST (5,9,0)
538 Safefree (PL_retstack); 626 Safefree (PL_retstack);
539#endif 627#endif
540} 628}
541 629
630static size_t
631coro_rss (pTHX_ struct coro *coro)
632{
633 size_t rss = sizeof (*coro);
634
635 if (coro->mainstack)
636 {
637 perl_slots tmp_slot;
638 perl_slots *slot;
639
640 if (coro->flags & CF_RUNNING)
641 {
642 slot = &tmp_slot;
643
644 #define VAR(name,type) slot->name = PL_ ## name;
645 # include "state.h"
646 #undef VAR
647 }
648 else
649 slot = coro->slot;
650
651 rss += sizeof (slot->curstackinfo);
652 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
653 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *);
654 rss += slot->tmps_max * sizeof (SV *);
655 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
656 rss += slot->scopestack_max * sizeof (I32);
657 rss += slot->savestack_max * sizeof (ANY);
658
659#if !PERL_VERSION_ATLEAST (5,9,0)
660 rss += slot->retstack_max * sizeof (OP *);
661#endif
662 }
663
664 return rss;
665}
666
542/** coroutine stack handling ************************************************/ 667/** coroutine stack handling ************************************************/
543 668
669static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg);
670
671/*
672 * This overrides the default magic get method of %SIG elements.
673 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
674 * and instead of tryign to save and restore the hash elements, we just provide
675 * readback here.
676 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
677 * not expecting this to actually change the hook. This is a potential problem
678 * when a schedule happens then, but we ignore this.
679 */
544static void 680static int
681coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
682{
683 const char *s = MgPV_nolen_const (mg);
684
685 if (*s == '_')
686 {
687 if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0;
688 if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0;
689 }
690
691 return orig_sigelem_get (aTHX_ sv, mg);
692}
693
694static void
545setup_coro (pTHX_ struct coro *coro) 695coro_setup (pTHX_ struct coro *coro)
546{ 696{
547 /* 697 /*
548 * emulate part of the perl startup here. 698 * emulate part of the perl startup here.
549 */ 699 */
550 coro_init_stacks (aTHX); 700 coro_init_stacks (aTHX);
551 701
702 PL_runops = RUNOPS_DEFAULT;
552 PL_curcop = &PL_compiling; 703 PL_curcop = &PL_compiling;
553 PL_in_eval = EVAL_NULL; 704 PL_in_eval = EVAL_NULL;
554 PL_comppad = 0; 705 PL_comppad = 0;
555 PL_curpm = 0; 706 PL_curpm = 0;
707 PL_curpad = 0;
556 PL_localizing = 0; 708 PL_localizing = 0;
557 PL_dirty = 0; 709 PL_dirty = 0;
558 PL_restartop = 0; 710 PL_restartop = 0;
559 711
712 /* recreate the die/warn hooks */
713 PL_diehook = 0;
714 hv_store (hv_sig, "__DIE__", sizeof ("__DIE__") - 1, newSV (0), 0);
715 PL_diehook = SvREFCNT_inc (rv_diehook);
716
717 PL_warnhook = 0;
718 hv_store (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, newSV (0), 0);
719 PL_warnhook = SvREFCNT_inc (rv_warnhook);
720
721 GvSV (PL_defgv) = newSV (0);
722 GvAV (PL_defgv) = coro->args; coro->args = 0;
723 GvSV (PL_errgv) = newSV (0);
724 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
725 PL_rs = newSVsv (GvSV (irsgv));
726 PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv);
727
560 { 728 {
561 dSP; 729 dSP;
562 LOGOP myop; 730 LOGOP myop;
563 731
564 SvREFCNT_dec (GvAV (PL_defgv));
565 GvAV (PL_defgv) = coro->args; coro->args = 0;
566
567 Zero (&myop, 1, LOGOP); 732 Zero (&myop, 1, LOGOP);
568 myop.op_next = Nullop; 733 myop.op_next = Nullop;
569 myop.op_flags = OPf_WANT_VOID; 734 myop.op_flags = OPf_WANT_VOID;
570 735
571 PUSHMARK (SP); 736 PUSHMARK (SP);
572 XPUSHs (av_shift (GvAV (PL_defgv))); 737 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv))));
573 PUTBACK; 738 PUTBACK;
574 PL_op = (OP *)&myop; 739 PL_op = (OP *)&myop;
575 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 740 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
576 SPAGAIN; 741 SPAGAIN;
577 } 742 }
578 743
579 ENTER; /* necessary e.g. for dounwind */ 744 /* this newly created coroutine might be run on an existing cctx which most
745 * likely was suspended in set_stacklevel, called from entersub.
746 * set_stacklevl doesn't do anything on return, but entersub does LEAVE,
747 * so we ENTER here for symmetry
748 */
749 ENTER;
750}
751
752static void
753coro_destroy (pTHX_ struct coro *coro)
754{
755 if (!IN_DESTRUCT)
756 {
757 /* restore all saved variables and stuff */
758 LEAVE_SCOPE (0);
759 assert (PL_tmps_floor == -1);
760
761 /* free all temporaries */
762 FREETMPS;
763 assert (PL_tmps_ix == -1);
764
765 /* unwind all extra stacks */
766 POPSTACK_TO (PL_mainstack);
767
768 /* unwind main stack */
769 dounwind (-1);
770 }
771
772 SvREFCNT_dec (GvSV (PL_defgv));
773 SvREFCNT_dec (GvAV (PL_defgv));
774 SvREFCNT_dec (GvSV (PL_errgv));
775 SvREFCNT_dec (PL_defoutgv);
776 SvREFCNT_dec (PL_rs);
777 SvREFCNT_dec (GvSV (irsgv));
778
779 SvREFCNT_dec (PL_diehook);
780 SvREFCNT_dec (PL_warnhook);
781
782 SvREFCNT_dec (coro->saved_deffh);
783 SvREFCNT_dec (coro->throw);
784
785 coro_destroy_stacks (aTHX);
580} 786}
581 787
582static void 788static void
583free_coro_mortal (pTHX) 789free_coro_mortal (pTHX)
584{ 790{
585 if (coro_mortal) 791 if (expect_true (coro_mortal))
586 { 792 {
587 SvREFCNT_dec (coro_mortal); 793 SvREFCNT_dec (coro_mortal);
588 coro_mortal = 0; 794 coro_mortal = 0;
589 } 795 }
590} 796}
591 797
798static int
799runops_trace (pTHX)
800{
801 COP *oldcop = 0;
802 int oldcxix = -2;
803 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
804 coro_cctx *cctx = coro->cctx;
805
806 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
807 {
808 PERL_ASYNC_CHECK ();
809
810 if (cctx->flags & CC_TRACE_ALL)
811 {
812 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
813 {
814 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
815 SV **bot, **top;
816 AV *av = newAV (); /* return values */
817 SV **cb;
818 dSP;
819
820 GV *gv = CvGV (cx->blk_sub.cv);
821 SV *fullname = sv_2mortal (newSV (0));
822 if (isGV (gv))
823 gv_efullname3 (fullname, gv, 0);
824
825 bot = PL_stack_base + cx->blk_oldsp + 1;
826 top = cx->blk_gimme == G_ARRAY ? SP + 1
827 : cx->blk_gimme == G_SCALAR ? bot + 1
828 : bot;
829
830 av_extend (av, top - bot);
831 while (bot < top)
832 av_push (av, SvREFCNT_inc (*bot++));
833
834 PL_runops = RUNOPS_DEFAULT;
835 ENTER;
836 SAVETMPS;
837 EXTEND (SP, 3);
838 PUSHMARK (SP);
839 PUSHs (&PL_sv_no);
840 PUSHs (fullname);
841 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
842 PUTBACK;
843 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
844 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
845 SPAGAIN;
846 FREETMPS;
847 LEAVE;
848 PL_runops = runops_trace;
849 }
850
851 if (oldcop != PL_curcop)
852 {
853 oldcop = PL_curcop;
854
855 if (PL_curcop != &PL_compiling)
856 {
857 SV **cb;
858
859 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
860 {
861 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
862
863 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
864 {
865 runops_proc_t old_runops = PL_runops;
866 dSP;
867 GV *gv = CvGV (cx->blk_sub.cv);
868 SV *fullname = sv_2mortal (newSV (0));
869
870 if (isGV (gv))
871 gv_efullname3 (fullname, gv, 0);
872
873 PL_runops = RUNOPS_DEFAULT;
874 ENTER;
875 SAVETMPS;
876 EXTEND (SP, 3);
877 PUSHMARK (SP);
878 PUSHs (&PL_sv_yes);
879 PUSHs (fullname);
880 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
881 PUTBACK;
882 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
883 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
884 SPAGAIN;
885 FREETMPS;
886 LEAVE;
887 PL_runops = runops_trace;
888 }
889
890 oldcxix = cxstack_ix;
891 }
892
893 if (cctx->flags & CC_TRACE_LINE)
894 {
895 dSP;
896
897 PL_runops = RUNOPS_DEFAULT;
898 ENTER;
899 SAVETMPS;
900 EXTEND (SP, 3);
901 PL_runops = RUNOPS_DEFAULT;
902 PUSHMARK (SP);
903 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
904 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
905 PUTBACK;
906 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
907 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
908 SPAGAIN;
909 FREETMPS;
910 LEAVE;
911 PL_runops = runops_trace;
912 }
913 }
914 }
915 }
916 }
917
918 TAINT_NOT;
919 return 0;
920}
921
592/* inject a fake call to Coro::State::_cctx_init into the execution */ 922/* 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 */ 923/* _cctx_init should be careful, as it could be called at almost any time */
594/* during execution of a pelr program */ 924/* during execution of a perl program */
595static void NOINLINE 925static void NOINLINE
596prepare_cctx (pTHX_ coro_cctx *cctx) 926cctx_prepare (pTHX_ coro_cctx *cctx)
597{ 927{
598 dSP; 928 dSP;
599 LOGOP myop; 929 LOGOP myop;
930
931 PL_top_env = &PL_start_env;
932
933 if (cctx->flags & CC_TRACE)
934 PL_runops = runops_trace;
600 935
601 Zero (&myop, 1, LOGOP); 936 Zero (&myop, 1, LOGOP);
602 myop.op_next = PL_op; 937 myop.op_next = PL_op;
603 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 938 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
604 939
… …
614 949
615/* 950/*
616 * this is a _very_ stripped down perl interpreter ;) 951 * this is a _very_ stripped down perl interpreter ;)
617 */ 952 */
618static void 953static void
619coro_run (void *arg) 954cctx_run (void *arg)
620{ 955{
621 dTHX; 956 dTHX;
622 957
623 /* coro_run is the alternative tail of transfer(), so unlock here. */ 958 /* cctx_run is the alternative tail of transfer(), so unlock here. */
624 UNLOCK; 959 UNLOCK;
625 960
626 PL_top_env = &PL_start_env; 961 /* we now skip the entersub that lead to transfer() */
962 PL_op = PL_op->op_next;
627 963
628 /* inject a fake subroutine call to cctx_init */ 964 /* inject a fake subroutine call to cctx_init */
629 prepare_cctx (aTHX_ (coro_cctx *)arg); 965 cctx_prepare (aTHX_ (coro_cctx *)arg);
630 966
631 /* somebody or something will hit me for both perl_run and PL_restartop */ 967 /* somebody or something will hit me for both perl_run and PL_restartop */
632 PL_restartop = PL_op; 968 PL_restartop = PL_op;
633 perl_run (PL_curinterp); 969 perl_run (PL_curinterp);
634 970
… …
653 ++cctx_count; 989 ++cctx_count;
654 990
655 Newz (0, cctx, 1, coro_cctx); 991 Newz (0, cctx, 1, coro_cctx);
656 992
657#if HAVE_MMAP 993#if HAVE_MMAP
658
659 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; 994 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
660 /* mmap supposedly does allocate-on-write for us */ 995 /* mmap supposedly does allocate-on-write for us */
661 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 996 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
662 997
663 if (cctx->sptr != (void *)-1) 998 if (cctx->sptr != (void *)-1)
… …
665# if CORO_STACKGUARD 1000# if CORO_STACKGUARD
666 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); 1001 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
667# endif 1002# endif
668 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; 1003 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
669 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; 1004 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
670 cctx->mapped = 1; 1005 cctx->flags |= CC_MAPPED;
671 } 1006 }
672 else 1007 else
673#endif 1008#endif
674 { 1009 {
675 cctx->ssize = coro_stacksize * (long)sizeof (long); 1010 cctx->ssize = coro_stacksize * (long)sizeof (long);
… …
684 stack_start = cctx->sptr; 1019 stack_start = cctx->sptr;
685 stack_size = cctx->ssize; 1020 stack_size = cctx->ssize;
686 } 1021 }
687 1022
688 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); 1023 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
689 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); 1024 coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size);
690 1025
691 return cctx; 1026 return cctx;
692} 1027}
693 1028
694static void 1029static void
… …
702#if CORO_USE_VALGRIND 1037#if CORO_USE_VALGRIND
703 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 1038 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
704#endif 1039#endif
705 1040
706#if HAVE_MMAP 1041#if HAVE_MMAP
707 if (cctx->mapped) 1042 if (cctx->flags & CC_MAPPED)
708 munmap (cctx->sptr, cctx->ssize); 1043 munmap (cctx->sptr, cctx->ssize);
709 else 1044 else
710#endif 1045#endif
711 Safefree (cctx->sptr); 1046 Safefree (cctx->sptr);
712 1047
713 Safefree (cctx); 1048 Safefree (cctx);
714} 1049}
715 1050
1051/* wether this cctx should be destructed */
1052#define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE))
1053
716static coro_cctx * 1054static coro_cctx *
717cctx_get (pTHX) 1055cctx_get (pTHX)
718{ 1056{
719 while (cctx_first) 1057 while (expect_true (cctx_first))
720 { 1058 {
721 coro_cctx *cctx = cctx_first; 1059 coro_cctx *cctx = cctx_first;
722 cctx_first = cctx->next; 1060 cctx_first = cctx->next;
723 --cctx_idle; 1061 --cctx_idle;
724 1062
725 if (cctx->ssize >= coro_stacksize) 1063 if (expect_true (!CCTX_EXPIRED (cctx)))
726 return cctx; 1064 return cctx;
727 1065
728 cctx_destroy (cctx); 1066 cctx_destroy (cctx);
729 } 1067 }
730 1068
731 PL_op = PL_op->op_next;
732 return cctx_new (); 1069 return cctx_new ();
733} 1070}
734 1071
735static void 1072static void
736cctx_put (coro_cctx *cctx) 1073cctx_put (coro_cctx *cctx)
737{ 1074{
738 /* free another cctx if overlimit */ 1075 /* free another cctx if overlimit */
739 if (cctx_idle >= MAX_IDLE_CCTX) 1076 if (expect_false (cctx_idle >= MAX_IDLE_CCTX))
740 { 1077 {
741 coro_cctx *first = cctx_first; 1078 coro_cctx *first = cctx_first;
742 cctx_first = first->next; 1079 cctx_first = first->next;
743 --cctx_idle; 1080 --cctx_idle;
744 1081
745 assert (!first->inuse);
746 cctx_destroy (first); 1082 cctx_destroy (first);
747 } 1083 }
748 1084
749 ++cctx_idle; 1085 ++cctx_idle;
750 cctx->next = cctx_first; 1086 cctx->next = cctx_first;
751 cctx_first = cctx; 1087 cctx_first = cctx;
752} 1088}
753 1089
754/** coroutine switching *****************************************************/ 1090/** coroutine switching *****************************************************/
755 1091
756/* never call directly, always through the coro_state_transfer global variable */ 1092static void
1093transfer_check (pTHX_ struct coro *prev, struct coro *next)
1094{
1095 if (expect_true (prev != next))
1096 {
1097 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1098 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
1099
1100 if (expect_false (next->flags & CF_RUNNING))
1101 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
1102
1103 if (expect_false (next->flags & CF_DESTROYED))
1104 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
1105
1106 if (
1107#if PERL_VERSION_ATLEAST (5,9,0)
1108 expect_false (PL_parser)
1109#else
1110 expect_false (PL_lex_state != LEX_NOTPARSING)
1111#endif
1112 )
1113 croak ("Coro::State::transfer called while parsing, but this is not supported");
1114 }
1115}
1116
1117/* always use the TRANSFER macro */
757static void NOINLINE 1118static void NOINLINE
758transfer (pTHX_ struct coro *prev, struct coro *next) 1119transfer (pTHX_ struct coro *prev, struct coro *next)
759{ 1120{
760 dSTACKLEVEL; 1121 dSTACKLEVEL;
761 1122
762 /* sometimes transfer is only called to set idle_sp */ 1123 /* sometimes transfer is only called to set idle_sp */
763 if (!next) 1124 if (expect_false (!next))
764 { 1125 {
765 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1126 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
766 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1127 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
767 } 1128 }
768 else if (prev != next) 1129 else if (expect_true (prev != next))
769 { 1130 {
770 coro_cctx *prev__cctx; 1131 coro_cctx *prev__cctx;
771 1132
772 if (prev->flags & CF_NEW) 1133 if (expect_false (prev->flags & CF_NEW))
773 { 1134 {
774 /* create a new empty context */ 1135 /* create a new empty context */
775 Newz (0, prev->cctx, 1, coro_cctx); 1136 Newz (0, prev->cctx, 1, coro_cctx);
776 prev->cctx->inuse = 1;
777 prev->flags &= ~CF_NEW; 1137 prev->flags &= ~CF_NEW;
778 prev->flags |= CF_RUNNING; 1138 prev->flags |= CF_RUNNING;
779 } 1139 }
780 1140
781 /*TODO: must not croak here */
782 if (!prev->flags & CF_RUNNING)
783 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
784
785 if (next->flags & CF_RUNNING)
786 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
787
788 if (next->flags & CF_DESTROYED)
789 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
790
791 prev->flags &= ~CF_RUNNING; 1141 prev->flags &= ~CF_RUNNING;
792 next->flags |= CF_RUNNING; 1142 next->flags |= CF_RUNNING;
793 1143
794 LOCK; 1144 LOCK;
795 1145
1146 /* first get rid of the old state */
1147 save_perl (aTHX_ prev);
1148
796 if (next->flags & CF_NEW) 1149 if (expect_false (next->flags & CF_NEW))
797 { 1150 {
798 /* need to start coroutine */ 1151 /* need to start coroutine */
799 next->flags &= ~CF_NEW; 1152 next->flags &= ~CF_NEW;
800 /* first get rid of the old state */
801 save_perl (aTHX_ prev);
802 /* setup coroutine call */ 1153 /* setup coroutine call */
803 setup_coro (aTHX_ next); 1154 coro_setup (aTHX_ next);
804 /* need a new stack */
805 assert (!next->cctx);
806 } 1155 }
807 else 1156 else
808 {
809 /* coroutine already started */
810 save_perl (aTHX_ prev);
811 load_perl (aTHX_ next); 1157 load_perl (aTHX_ next);
812 }
813 1158
814 prev__cctx = prev->cctx; 1159 prev__cctx = prev->cctx;
815 1160
816 /* possibly "free" the cctx */ 1161 /* possibly "free" the cctx */
817 if (prev__cctx->idle_sp == STACKLEVEL) 1162 if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)))
818 { 1163 {
819 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1164 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
820 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1165 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
821 1166
822 prev->cctx = 0; 1167 prev->cctx = 0;
823 1168
1169 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */
1170 /* without this the next cctx_get might destroy the prev__cctx while still in use */
1171 if (expect_false (CCTX_EXPIRED (prev__cctx)))
1172 if (!next->cctx)
1173 next->cctx = cctx_get (aTHX);
1174
824 cctx_put (prev__cctx); 1175 cctx_put (prev__cctx);
825 prev__cctx->inuse = 0;
826 } 1176 }
827 1177
1178 ++next->usecount;
1179
828 if (!next->cctx) 1180 if (expect_true (!next->cctx))
829 {
830 next->cctx = cctx_get (aTHX); 1181 next->cctx = cctx_get (aTHX);
831 assert (!next->cctx->inuse);
832 next->cctx->inuse = 1;
833 }
834 1182
835 if (prev__cctx != next->cctx) 1183 if (expect_false (prev__cctx != next->cctx))
836 { 1184 {
837 prev__cctx->top_env = PL_top_env; 1185 prev__cctx->top_env = PL_top_env;
838 PL_top_env = next->cctx->top_env; 1186 PL_top_env = next->cctx->top_env;
839 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1187 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
840 } 1188 }
841 1189
842 free_coro_mortal (aTHX); 1190 free_coro_mortal (aTHX);
843 UNLOCK; 1191 UNLOCK;
1192
1193 if (expect_false (prev->throw || next->throw))
1194 {
1195 struct coro *coro = SvSTATE (coro_current);
1196
1197 if (coro->throw)
1198 {
1199 SV *exception = coro->throw;
1200 coro->throw = 0;
1201 sv_setsv (ERRSV, exception);
1202 croak (0);
1203 }
1204 }
844 } 1205 }
845} 1206}
846 1207
847struct transfer_args 1208struct transfer_args
848{ 1209{
849 struct coro *prev, *next; 1210 struct coro *prev, *next;
850}; 1211};
851 1212
852#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) 1213#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1214#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
853 1215
854/** high level stuff ********************************************************/ 1216/** high level stuff ********************************************************/
855 1217
856static int 1218static int
857coro_state_destroy (pTHX_ struct coro *coro) 1219coro_state_destroy (pTHX_ struct coro *coro)
… …
874 1236
875 if (coro->mainstack && coro->mainstack != main_mainstack) 1237 if (coro->mainstack && coro->mainstack != main_mainstack)
876 { 1238 {
877 struct coro temp; 1239 struct coro temp;
878 1240
879 assert (!(coro->flags & CF_RUNNING));
880
881 Zero (&temp, 1, struct coro);
882 temp.save = CORO_SAVE_DEF;
883
884 if (coro->flags & CF_RUNNING) 1241 if (coro->flags & CF_RUNNING)
885 croak ("FATAL: tried to destroy currently running coroutine"); 1242 croak ("FATAL: tried to destroy currently running coroutine");
886 1243
887 save_perl (aTHX_ &temp); 1244 save_perl (aTHX_ &temp);
888 load_perl (aTHX_ coro); 1245 load_perl (aTHX_ coro);
889 1246
890 coro_destroy_stacks (aTHX); 1247 coro_destroy (aTHX_ coro);
891 1248
892 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ 1249 load_perl (aTHX_ &temp);
893 1250
894 coro->mainstack = 0; 1251 coro->slot = 0;
895 } 1252 }
896 1253
897 cctx_destroy (coro->cctx); 1254 cctx_destroy (coro->cctx);
898 SvREFCNT_dec (coro->args); 1255 SvREFCNT_dec (coro->args);
899 1256
1257 if (coro->next) coro->next->prev = coro->prev;
1258 if (coro->prev) coro->prev->next = coro->next;
1259 if (coro == coro_first) coro_first = coro->next;
1260
900 return 1; 1261 return 1;
901} 1262}
902 1263
903static int 1264static int
904coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1265coro_state_free (pTHX_ SV *sv, MAGIC *mg)
905{ 1266{
906 struct coro *coro = (struct coro *)mg->mg_ptr; 1267 struct coro *coro = (struct coro *)mg->mg_ptr;
907 mg->mg_ptr = 0; 1268 mg->mg_ptr = 0;
1269
1270 coro->hv = 0;
908 1271
909 if (--coro->refcnt < 0) 1272 if (--coro->refcnt < 0)
910 { 1273 {
911 coro_state_destroy (aTHX_ coro); 1274 coro_state_destroy (aTHX_ coro);
912 Safefree (coro); 1275 Safefree (coro);
… …
934#else 1297#else
935# define MGf_DUP 0 1298# define MGf_DUP 0
936#endif 1299#endif
937}; 1300};
938 1301
939static struct coro *
940SvSTATE_ (pTHX_ SV *coro)
941{
942 HV *stash;
943 MAGIC *mg;
944
945 if (SvROK (coro))
946 coro = SvRV (coro);
947
948 stash = SvSTASH (coro);
949 if (stash != coro_stash && stash != coro_state_stash)
950 {
951 /* very slow, but rare, check */
952 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
953 croak ("Coro::State object required");
954 }
955
956 mg = CORO_MAGIC (coro);
957 return (struct coro *)mg->mg_ptr;
958}
959
960#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
961
962static void 1302static void
963prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1303prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
964{ 1304{
965 ta->prev = SvSTATE (prev_sv); 1305 ta->prev = SvSTATE (prev_sv);
966 ta->next = SvSTATE (next_sv); 1306 ta->next = SvSTATE (next_sv);
1307 TRANSFER_CHECK (*ta);
967} 1308}
968 1309
969static void 1310static void
970api_transfer (SV *prev_sv, SV *next_sv) 1311api_transfer (SV *prev_sv, SV *next_sv)
971{ 1312{
972 dTHX; 1313 dTHX;
973 struct transfer_args ta; 1314 struct transfer_args ta;
974 1315
975 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1316 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
976 TRANSFER (ta); 1317 TRANSFER (ta);
977}
978
979static int
980api_save (SV *coro_sv, int new_save)
981{
982 dTHX;
983 struct coro *coro = SvSTATE (coro_sv);
984 int old_save = coro->save;
985
986 if (new_save >= 0)
987 coro->save = new_save;
988
989 return old_save;
990} 1318}
991 1319
992/** Coro ********************************************************************/ 1320/** Coro ********************************************************************/
993 1321
994static void 1322static void
… …
1053 { 1381 {
1054 LOCK; 1382 LOCK;
1055 next_sv = coro_deq (aTHX_ PRIO_MIN); 1383 next_sv = coro_deq (aTHX_ PRIO_MIN);
1056 1384
1057 /* nothing to schedule: call the idle handler */ 1385 /* nothing to schedule: call the idle handler */
1058 if (!next_sv) 1386 if (expect_false (!next_sv))
1059 { 1387 {
1060 dSP; 1388 dSP;
1061 UNLOCK; 1389 UNLOCK;
1062 1390
1063 ENTER; 1391 ENTER;
… …
1073 } 1401 }
1074 1402
1075 ta->next = SvSTATE (next_sv); 1403 ta->next = SvSTATE (next_sv);
1076 1404
1077 /* cannot transfer to destroyed coros, skip and look for next */ 1405 /* cannot transfer to destroyed coros, skip and look for next */
1078 if (ta->next->flags & CF_DESTROYED) 1406 if (expect_false (ta->next->flags & CF_DESTROYED))
1079 { 1407 {
1080 UNLOCK; 1408 UNLOCK;
1081 SvREFCNT_dec (next_sv); 1409 SvREFCNT_dec (next_sv);
1082 /* coro_nready is already taken care of by destroy */ 1410 /* coro_nready is already taken care of by destroy */
1083 continue; 1411 continue;
… …
1088 break; 1416 break;
1089 } 1417 }
1090 1418
1091 /* free this only after the transfer */ 1419 /* free this only after the transfer */
1092 prev_sv = SvRV (coro_current); 1420 prev_sv = SvRV (coro_current);
1093 SvRV_set (coro_current, next_sv);
1094 ta->prev = SvSTATE (prev_sv); 1421 ta->prev = SvSTATE (prev_sv);
1095 1422 TRANSFER_CHECK (*ta);
1096 assert (ta->next->flags & CF_READY); 1423 assert (ta->next->flags & CF_READY);
1097 ta->next->flags &= ~CF_READY; 1424 ta->next->flags &= ~CF_READY;
1425 SvRV_set (coro_current, next_sv);
1098 1426
1099 LOCK; 1427 LOCK;
1100 free_coro_mortal (aTHX); 1428 free_coro_mortal (aTHX);
1101 coro_mortal = prev_sv; 1429 coro_mortal = prev_sv;
1102 UNLOCK; 1430 UNLOCK;
… …
1139 dTHX; 1467 dTHX;
1140 struct transfer_args ta; 1468 struct transfer_args ta;
1141 1469
1142 prepare_cede (aTHX_ &ta); 1470 prepare_cede (aTHX_ &ta);
1143 1471
1144 if (ta.prev != ta.next) 1472 if (expect_true (ta.prev != ta.next))
1145 { 1473 {
1146 TRANSFER (ta); 1474 TRANSFER (ta);
1147 return 1; 1475 return 1;
1148 } 1476 }
1149 else 1477 else
… …
1163 } 1491 }
1164 else 1492 else
1165 return 0; 1493 return 0;
1166} 1494}
1167 1495
1496static void
1497api_trace (SV *coro_sv, int flags)
1498{
1499 dTHX;
1500 struct coro *coro = SvSTATE (coro_sv);
1501
1502 if (flags & CC_TRACE)
1503 {
1504 if (!coro->cctx)
1505 coro->cctx = cctx_new ();
1506 else if (!(coro->cctx->flags & CC_TRACE))
1507 croak ("cannot enable tracing on coroutine with custom stack");
1508
1509 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1510 }
1511 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1512 {
1513 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1514
1515 if (coro->flags & CF_RUNNING)
1516 PL_runops = RUNOPS_DEFAULT;
1517 else
1518 coro->slot->runops = RUNOPS_DEFAULT;
1519 }
1520}
1521
1168MODULE = Coro::State PACKAGE = Coro::State 1522MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1169 1523
1170PROTOTYPES: DISABLE 1524PROTOTYPES: DISABLE
1171 1525
1172BOOT: 1526BOOT:
1173{ 1527{
1174#ifdef USE_ITHREADS 1528#ifdef USE_ITHREADS
1175 MUTEX_INIT (&coro_mutex); 1529 MUTEX_INIT (&coro_mutex);
1176#endif 1530#endif
1177 BOOT_PAGESIZE; 1531 BOOT_PAGESIZE;
1178 1532
1533 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
1534 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
1535
1536 orig_sigelem_get = PL_vtbl_sigelem.svt_get;
1537 PL_vtbl_sigelem.svt_get = coro_sigelem_get;
1538
1539 hv_sig = coro_get_hv (aTHX_ "SIG", TRUE);
1540 rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV));
1541 rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV));
1542
1179 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1543 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1180 1544
1181 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1545 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1182 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1546 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1183 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1184 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1185 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1186 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); 1547 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1187 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1548 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1188 1549
1189 main_mainstack = PL_mainstack; 1550 main_mainstack = PL_mainstack;
1190 main_top_env = PL_top_env; 1551 main_top_env = PL_top_env;
1191 1552
1192 while (main_top_env->je_prev) 1553 while (main_top_env->je_prev)
1193 main_top_env = main_top_env->je_prev; 1554 main_top_env = main_top_env->je_prev;
1194 1555
1195 coroapi.ver = CORO_API_VERSION; 1556 coroapi.ver = CORO_API_VERSION;
1557 coroapi.rev = CORO_API_REVISION;
1196 coroapi.transfer = api_transfer; 1558 coroapi.transfer = api_transfer;
1197 1559
1198 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1560 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1199} 1561}
1200 1562
1201SV * 1563SV *
1202new (char *klass, ...) 1564new (char *klass, ...)
1203 CODE: 1565 CODE:
1204{ 1566{
1205 struct coro *coro; 1567 struct coro *coro;
1568 MAGIC *mg;
1206 HV *hv; 1569 HV *hv;
1207 int i; 1570 int i;
1208 1571
1209 Newz (0, coro, 1, struct coro); 1572 Newz (0, coro, 1, struct coro);
1210 coro->args = newAV (); 1573 coro->args = newAV ();
1211 coro->save = CORO_SAVE_DEF;
1212 coro->flags = CF_NEW; 1574 coro->flags = CF_NEW;
1213 1575
1576 if (coro_first) coro_first->prev = coro;
1577 coro->next = coro_first;
1578 coro_first = coro;
1579
1214 hv = newHV (); 1580 coro->hv = hv = newHV ();
1215 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1581 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
1582 mg->mg_flags |= MGf_DUP;
1216 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1583 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1217 1584
1585 av_extend (coro->args, items - 1);
1218 for (i = 1; i < items; i++) 1586 for (i = 1; i < items; i++)
1219 av_push (coro->args, newSVsv (ST (i))); 1587 av_push (coro->args, newSVsv (ST (i)));
1220} 1588}
1221 OUTPUT: 1589 OUTPUT:
1222 RETVAL 1590 RETVAL
1223 1591
1224int 1592# these not obviously related functions are all rolled into the same xs
1225save (SV *coro, int new_save = -1) 1593# function to increase chances that they all will call transfer with the same
1226 CODE: 1594# stack offset
1227 RETVAL = api_save (coro, new_save);
1228 OUTPUT:
1229 RETVAL
1230
1231int
1232save_also (SV *coro_sv, int save_also)
1233 CODE:
1234{
1235 struct coro *coro = SvSTATE (coro_sv);
1236 RETVAL = coro->save;
1237 coro->save |= save_also;
1238}
1239 OUTPUT:
1240 RETVAL
1241
1242void 1595void
1243_set_stacklevel (...) 1596_set_stacklevel (...)
1244 ALIAS: 1597 ALIAS:
1245 Coro::State::transfer = 1 1598 Coro::State::transfer = 1
1246 Coro::schedule = 2 1599 Coro::schedule = 2
… …
1278 1631
1279 break; 1632 break;
1280 } 1633 }
1281 1634
1282 BARRIER; 1635 BARRIER;
1636 PUTBACK;
1283 TRANSFER (ta); 1637 TRANSFER (ta);
1284 1638 SPAGAIN; /* might be the sp of a different coroutine now */
1285 if (GIMME_V != G_VOID && ta.next != ta.prev) 1639 /* be extra careful not to ever do anything after TRANSFER */
1286 XSRETURN_YES;
1287} 1640}
1288 1641
1289bool 1642bool
1290_destroy (SV *coro_sv) 1643_destroy (SV *coro_sv)
1291 CODE: 1644 CODE:
… …
1321 CODE: 1674 CODE:
1322 RETVAL = cctx_idle; 1675 RETVAL = cctx_idle;
1323 OUTPUT: 1676 OUTPUT:
1324 RETVAL 1677 RETVAL
1325 1678
1679void
1680list ()
1681 PPCODE:
1682{
1683 struct coro *coro;
1684 for (coro = coro_first; coro; coro = coro->next)
1685 if (coro->hv)
1686 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1687}
1688
1689void
1690call (Coro::State coro, SV *coderef)
1691 ALIAS:
1692 eval = 1
1693 CODE:
1694{
1695 if (coro->mainstack)
1696 {
1697 struct coro temp;
1698
1699 if (!(coro->flags & CF_RUNNING))
1700 {
1701 save_perl (aTHX_ &temp);
1702 load_perl (aTHX_ coro);
1703 }
1704
1705 {
1706 dSP;
1707 ENTER;
1708 SAVETMPS;
1709 PUTBACK;
1710 PUSHSTACK;
1711 PUSHMARK (SP);
1712
1713 if (ix)
1714 eval_sv (coderef, 0);
1715 else
1716 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1717
1718 POPSTACK;
1719 SPAGAIN;
1720 FREETMPS;
1721 LEAVE;
1722 PUTBACK;
1723 }
1724
1725 if (!(coro->flags & CF_RUNNING))
1726 {
1727 save_perl (aTHX_ coro);
1728 load_perl (aTHX_ &temp);
1729 }
1730 }
1731}
1732
1733SV *
1734is_ready (Coro::State coro)
1735 PROTOTYPE: $
1736 ALIAS:
1737 is_ready = CF_READY
1738 is_running = CF_RUNNING
1739 is_new = CF_NEW
1740 is_destroyed = CF_DESTROYED
1741 CODE:
1742 RETVAL = boolSV (coro->flags & ix);
1743 OUTPUT:
1744 RETVAL
1745
1746void
1747api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1748
1749SV *
1750has_stack (Coro::State coro)
1751 PROTOTYPE: $
1752 CODE:
1753 RETVAL = boolSV (!!coro->cctx);
1754 OUTPUT:
1755 RETVAL
1756
1757int
1758is_traced (Coro::State coro)
1759 PROTOTYPE: $
1760 CODE:
1761 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1762 OUTPUT:
1763 RETVAL
1764
1765IV
1766rss (Coro::State coro)
1767 PROTOTYPE: $
1768 ALIAS:
1769 usecount = 1
1770 CODE:
1771 switch (ix)
1772 {
1773 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1774 case 1: RETVAL = coro->usecount; break;
1775 }
1776 OUTPUT:
1777 RETVAL
1778
1779
1326MODULE = Coro::State PACKAGE = Coro 1780MODULE = Coro::State PACKAGE = Coro
1327 1781
1328BOOT: 1782BOOT:
1329{ 1783{
1330 int i; 1784 int i;
1331 1785
1786 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
1787 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
1788 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
1789
1790 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE);
1791 SvREADONLY_on (coro_current);
1792
1332 coro_stash = gv_stashpv ("Coro", TRUE); 1793 coro_stash = gv_stashpv ("Coro", TRUE);
1333 1794
1334 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1795 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1335 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1796 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1336 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1797 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1337 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1798 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1338 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1799 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1339 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1800 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1340 1801
1341 coro_current = get_sv ("Coro::current", FALSE);
1342 SvREADONLY_on (coro_current);
1343
1344 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1802 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1345 coro_ready[i] = newAV (); 1803 coro_ready[i] = newAV ();
1346 1804
1347 { 1805 {
1348 SV *sv = perl_get_sv("Coro::API", 1); 1806 SV *sv = perl_get_sv ("Coro::API", TRUE);
1807 perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */
1349 1808
1350 coroapi.schedule = api_schedule; 1809 coroapi.schedule = api_schedule;
1351 coroapi.save = api_save;
1352 coroapi.cede = api_cede; 1810 coroapi.cede = api_cede;
1353 coroapi.cede_notself = api_cede_notself; 1811 coroapi.cede_notself = api_cede_notself;
1354 coroapi.ready = api_ready; 1812 coroapi.ready = api_ready;
1355 coroapi.is_ready = api_is_ready; 1813 coroapi.is_ready = api_is_ready;
1356 coroapi.nready = &coro_nready; 1814 coroapi.nready = &coro_nready;
… …
1397 CODE: 1855 CODE:
1398 RETVAL = boolSV (api_ready (self)); 1856 RETVAL = boolSV (api_ready (self));
1399 OUTPUT: 1857 OUTPUT:
1400 RETVAL 1858 RETVAL
1401 1859
1402SV *
1403is_ready (SV *self)
1404 PROTOTYPE: $
1405 CODE:
1406 RETVAL = boolSV (api_is_ready (self));
1407 OUTPUT:
1408 RETVAL
1409
1410int 1860int
1411nready (...) 1861nready (...)
1412 PROTOTYPE: 1862 PROTOTYPE:
1413 CODE: 1863 CODE:
1414 RETVAL = coro_nready; 1864 RETVAL = coro_nready;
1415 OUTPUT: 1865 OUTPUT:
1416 RETVAL 1866 RETVAL
1417 1867
1868void
1869throw (Coro::State self, SV *throw = &PL_sv_undef)
1870 PROTOTYPE: $;$
1871 CODE:
1872 SvREFCNT_dec (self->throw);
1873 self->throw = SvOK (throw) ? newSVsv (throw) : 0;
1874
1875# for async_pool speedup
1876void
1877_pool_1 (SV *cb)
1878 CODE:
1879{
1880 struct coro *coro = SvSTATE (coro_current);
1881 HV *hv = (HV *)SvRV (coro_current);
1882 AV *defav = GvAV (PL_defgv);
1883 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1884 AV *invoke_av;
1885 int i, len;
1886
1887 if (!invoke)
1888 croak ("\3async_pool terminate\2\n");
1889
1890 SvREFCNT_dec (coro->saved_deffh);
1891 coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv);
1892
1893 hv_store (hv, "desc", sizeof ("desc") - 1,
1894 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1895
1896 invoke_av = (AV *)SvRV (invoke);
1897 len = av_len (invoke_av);
1898
1899 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1900
1901 if (len > 0)
1902 {
1903 av_fill (defav, len - 1);
1904 for (i = 0; i < len; ++i)
1905 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1906 }
1907
1908 SvREFCNT_dec (invoke);
1909}
1910
1911void
1912_pool_2 (SV *cb)
1913 CODE:
1914{
1915 struct coro *coro = SvSTATE (coro_current);
1916
1917 sv_setsv (cb, &PL_sv_undef);
1918
1919 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1920 coro->saved_deffh = 0;
1921
1922 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1923 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1924 croak ("\3async_pool terminate\2\n");
1925
1926 av_clear (GvAV (PL_defgv));
1927 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1928 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1929
1930 coro->prio = 0;
1931
1932 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1933 api_trace (coro_current, 0);
1934
1935 av_push (av_async_pool, newSVsv (coro_current));
1936}
1937
1938
1418MODULE = Coro::State PACKAGE = Coro::AIO 1939MODULE = Coro::State PACKAGE = Coro::AIO
1419 1940
1420SV * 1941SV *
1421_get_state () 1942_get_state ()
1422 CODE: 1943 CODE:

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