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Comparing Coro/Coro/State.xs (file contents):
Revision 1.140 by root, Sat Jan 20 19:52:15 2007 UTC vs.
Revision 1.169 by root, Thu Sep 27 16:25:10 2007 UTC

1#include "libcoro/coro.c" 1#include "libcoro/coro.c"
2
3#define PERL_NO_GET_CONTEXT
2 4
3#include "EXTERN.h" 5#include "EXTERN.h"
4#include "perl.h" 6#include "perl.h"
5#include "XSUB.h" 7#include "XSUB.h"
6 8
31#else 33#else
32# define PAGESIZE 0 34# define PAGESIZE 0
33# define BOOT_PAGESIZE (void)0 35# define BOOT_PAGESIZE (void)0
34#endif 36#endif
35 37
36#if USE_VALGRIND 38#if CORO_USE_VALGRIND
37# include <valgrind/valgrind.h> 39# include <valgrind/valgrind.h>
40# define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end))
41#else
42# define REGISTER_STACK(cctx,start,end)
38#endif 43#endif
39 44
40/* the maximum number of idle cctx that will be pooled */ 45/* the maximum number of idle cctx that will be pooled */
41#define MAX_IDLE_CCTX 8 46#define MAX_IDLE_CCTX 8
42 47
71#ifndef SvRV_set 76#ifndef SvRV_set
72# define SvRV_set(s,v) SvRV(s) = (v) 77# define SvRV_set(s,v) SvRV(s) = (v)
73#endif 78#endif
74 79
75#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 80#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
76# undef STACKGUARD 81# undef CORO_STACKGUARD
77#endif 82#endif
78 83
79#ifndef STACKGUARD 84#ifndef CORO_STACKGUARD
80# define STACKGUARD 0 85# define CORO_STACKGUARD 0
81#endif 86#endif
82 87
83/* prefer perl internal functions over our own? */ 88/* prefer perl internal functions over our own? */
84#ifndef PREFER_PERL_FUNCTIONS 89#ifndef CORO_PREFER_PERL_FUNCTIONS
85# define PREFER_PERL_FUNCTIONS 0 90# define CORO_PREFER_PERL_FUNCTIONS 0
86#endif 91#endif
87 92
88/* The next macro should declare a variable stacklevel that contains and approximation 93/* The next macros try to return the current stack pointer, in an as
89 * to the current C stack pointer. Its property is that it changes with each call 94 * portable way as possible. */
90 * and should be unique. */
91#define dSTACKLEVEL int stacklevel 95#define dSTACKLEVEL volatile char stacklevel
92#define STACKLEVEL ((void *)&stacklevel) 96#define STACKLEVEL ((void *)&stacklevel)
93 97
94#define IN_DESTRUCT (PL_main_cv == Nullcv) 98#define IN_DESTRUCT (PL_main_cv == Nullcv)
95 99
96#if __GNUC__ >= 3 100#if __GNUC__ >= 3
121 I32 laststype; 125 I32 laststype;
122 int laststatval; 126 int laststatval;
123 Stat_t statcache; 127 Stat_t statcache;
124}; 128};
125 129
130static size_t coro_stacksize = CORO_STACKSIZE;
126static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
127static AV *main_mainstack; /* used to differentiate between $main and others */ 132static AV *main_mainstack; /* used to differentiate between $main and others */
133static JMPENV *main_top_env;
128static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
129static SV *coro_mortal; /* will be freed after next transfer */ 135static SV *coro_mortal; /* will be freed after next transfer */
130 136
137/* async_pool helper stuff */
138static SV *sv_pool_rss;
139static SV *sv_pool_size;
140static AV *av_async_pool;
141
131static struct coro_cctx *cctx_first; 142static struct coro_cctx *cctx_first;
132static int cctx_count, cctx_idle; 143static int cctx_count, cctx_idle;
144
145enum {
146 CC_MAPPED = 0x01,
147 CC_NOREUSE = 0x02, /* throw this away after tracing */
148 CC_TRACE = 0x04,
149 CC_TRACE_SUB = 0x08, /* trace sub calls */
150 CC_TRACE_LINE = 0x10, /* trace each statement */
151 CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE,
152};
133 153
134/* this is a structure representing a c-level coroutine */ 154/* this is a structure representing a c-level coroutine */
135typedef struct coro_cctx { 155typedef struct coro_cctx {
136 struct coro_cctx *next; 156 struct coro_cctx *next;
137 157
138 /* the stack */ 158 /* the stack */
139 void *sptr; 159 void *sptr;
140 long ssize; /* positive == mmap, otherwise malloc */ 160 size_t ssize;
141 161
142 /* cpu state */ 162 /* cpu state */
143 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 163 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
144 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ 164 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
145 JMPENV *top_env; 165 JMPENV *top_env;
146 coro_context cctx; 166 coro_context cctx;
147 167
148 int inuse;
149
150#if USE_VALGRIND 168#if CORO_USE_VALGRIND
151 int valgrind_id; 169 int valgrind_id;
152#endif 170#endif
171 unsigned char flags;
153} coro_cctx; 172} coro_cctx;
154 173
155enum { 174enum {
156 CF_RUNNING = 0x0001, /* coroutine is running */ 175 CF_RUNNING = 0x0001, /* coroutine is running */
157 CF_READY = 0x0002, /* coroutine is ready */ 176 CF_READY = 0x0002, /* coroutine is ready */
172 191
173 /* optionally saved, might be zero */ 192 /* optionally saved, might be zero */
174 AV *defav; /* @_ */ 193 AV *defav; /* @_ */
175 SV *defsv; /* $_ */ 194 SV *defsv; /* $_ */
176 SV *errsv; /* $@ */ 195 SV *errsv; /* $@ */
196 GV *deffh; /* default filehandle */
177 SV *irssv; /* $/ */ 197 SV *irssv; /* $/ */
178 SV *irssv_sv; /* real $/ cache */ 198 SV *irssv_sv; /* real $/ cache */
179 199
180#define VAR(name,type) type name; 200#define VAR(name,type) type name;
181# include "state.h" 201# include "state.h"
182#undef VAR 202#undef VAR
183 203
184 /* coro process data */ 204 /* coro process data */
185 int prio; 205 int prio;
206
207 /* linked list */
208 struct coro *next, *prev;
209 HV *hv; /* the perl hash associated with this coro, if any */
186}; 210};
187 211
188typedef struct coro *Coro__State; 212typedef struct coro *Coro__State;
189typedef struct coro *Coro__State_or_hashref; 213typedef struct coro *Coro__State_or_hashref;
190 214
199 223
200/* for Coro.pm */ 224/* for Coro.pm */
201static SV *coro_current; 225static SV *coro_current;
202static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; 226static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
203static int coro_nready; 227static int coro_nready;
228static struct coro *coro_first;
204 229
205/** lowlevel stuff **********************************************************/ 230/** lowlevel stuff **********************************************************/
206 231
207static AV * 232static AV *
208coro_clone_padlist (CV *cv) 233coro_clone_padlist (pTHX_ CV *cv)
209{ 234{
210 AV *padlist = CvPADLIST (cv); 235 AV *padlist = CvPADLIST (cv);
211 AV *newpadlist, *newpad; 236 AV *newpadlist, *newpad;
212 237
213 newpadlist = newAV (); 238 newpadlist = newAV ();
225 250
226 return newpadlist; 251 return newpadlist;
227} 252}
228 253
229static void 254static void
230free_padlist (AV *padlist) 255free_padlist (pTHX_ AV *padlist)
231{ 256{
232 /* may be during global destruction */ 257 /* may be during global destruction */
233 if (SvREFCNT (padlist)) 258 if (SvREFCNT (padlist))
234 { 259 {
235 I32 i = AvFILLp (padlist); 260 I32 i = AvFILLp (padlist);
256 AV *padlist; 281 AV *padlist;
257 AV *av = (AV *)mg->mg_obj; 282 AV *av = (AV *)mg->mg_obj;
258 283
259 /* casting is fun. */ 284 /* casting is fun. */
260 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 285 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
261 free_padlist (padlist); 286 free_padlist (aTHX_ padlist);
262 287
263 SvREFCNT_dec (av); 288 SvREFCNT_dec (av);
264 289
265 return 0; 290 return 0;
266} 291}
274 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 299 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
275 ? SvMAGIC (cv) \ 300 ? SvMAGIC (cv) \
276 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 301 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
277 : 0 302 : 0
278 303
304static struct coro *
305SvSTATE_ (pTHX_ SV *coro)
306{
307 HV *stash;
308 MAGIC *mg;
309
310 if (SvROK (coro))
311 coro = SvRV (coro);
312
313 stash = SvSTASH (coro);
314 if (stash != coro_stash && stash != coro_state_stash)
315 {
316 /* very slow, but rare, check */
317 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
318 croak ("Coro::State object required");
319 }
320
321 mg = CORO_MAGIC (coro);
322 return (struct coro *)mg->mg_ptr;
323}
324
325#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
326
279/* the next two functions merely cache the padlists */ 327/* the next two functions merely cache the padlists */
280static void 328static void
281get_padlist (CV *cv) 329get_padlist (pTHX_ CV *cv)
282{ 330{
283 MAGIC *mg = CORO_MAGIC (cv); 331 MAGIC *mg = CORO_MAGIC (cv);
284 AV *av; 332 AV *av;
285 333
286 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 334 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
287 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 335 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
288 else 336 else
289 { 337 {
290#if PREFER_PERL_FUNCTIONS 338#if CORO_PREFER_PERL_FUNCTIONS
291 /* this is probably cleaner, but also slower? */ 339 /* this is probably cleaner, but also slower? */
292 CV *cp = Perl_cv_clone (cv); 340 CV *cp = Perl_cv_clone (cv);
293 CvPADLIST (cv) = CvPADLIST (cp); 341 CvPADLIST (cv) = CvPADLIST (cp);
294 CvPADLIST (cp) = 0; 342 CvPADLIST (cp) = 0;
295 SvREFCNT_dec (cp); 343 SvREFCNT_dec (cp);
296#else 344#else
297 CvPADLIST (cv) = coro_clone_padlist (cv); 345 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
298#endif 346#endif
299 } 347 }
300} 348}
301 349
302static void 350static void
303put_padlist (CV *cv) 351put_padlist (pTHX_ CV *cv)
304{ 352{
305 MAGIC *mg = CORO_MAGIC (cv); 353 MAGIC *mg = CORO_MAGIC (cv);
306 AV *av; 354 AV *av;
307 355
308 if (!mg) 356 if (!mg)
327#define SE } while (0) 375#define SE } while (0)
328 376
329#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE 377#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
330 378
331static void 379static void
332load_perl (Coro__State c) 380load_perl (pTHX_ Coro__State c)
333{ 381{
334#define VAR(name,type) PL_ ## name = c->name; 382#define VAR(name,type) PL_ ## name = c->name;
335# include "state.h" 383# include "state.h"
336#undef VAR 384#undef VAR
337 385
338 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 386 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
339 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 387 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
340 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 388 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
389 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
390
341 if (c->irssv) 391 if (c->irssv)
342 { 392 {
343 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) 393 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
394 {
344 SvREFCNT_dec (c->irssv); 395 SvREFCNT_dec (c->irssv);
396 c->irssv = 0;
397 }
345 else 398 else
346 { 399 {
347 REPLACE_SV (PL_rs, c->irssv); 400 REPLACE_SV (PL_rs, c->irssv);
348 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); 401 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
349 sv_setsv (c->irssv_sv, PL_rs); 402 sv_setsv (c->irssv_sv, PL_rs);
355 CV *cv; 408 CV *cv;
356 409
357 /* now do the ugly restore mess */ 410 /* now do the ugly restore mess */
358 while ((cv = (CV *)POPs)) 411 while ((cv = (CV *)POPs))
359 { 412 {
360 put_padlist (cv); /* mark this padlist as available */ 413 put_padlist (aTHX_ cv); /* mark this padlist as available */
361 CvDEPTH (cv) = PTR2IV (POPs); 414 CvDEPTH (cv) = PTR2IV (POPs);
362 CvPADLIST (cv) = (AV *)POPs; 415 CvPADLIST (cv) = (AV *)POPs;
363 } 416 }
364 417
365 PUTBACK; 418 PUTBACK;
366 } 419 }
367} 420}
368 421
369static void 422static void
370save_perl (Coro__State c) 423save_perl (pTHX_ Coro__State c)
371{ 424{
372 { 425 {
373 dSP; 426 dSP;
374 I32 cxix = cxstack_ix; 427 I32 cxix = cxstack_ix;
375 PERL_CONTEXT *ccstk = cxstack; 428 PERL_CONTEXT *ccstk = cxstack;
378 /* 431 /*
379 * the worst thing you can imagine happens first - we have to save 432 * the worst thing you can imagine happens first - we have to save
380 * (and reinitialize) all cv's in the whole callchain :( 433 * (and reinitialize) all cv's in the whole callchain :(
381 */ 434 */
382 435
383 EXTEND (SP, 3 + 1);
384 PUSHs (Nullsv); 436 XPUSHs (Nullsv);
385 /* this loop was inspired by pp_caller */ 437 /* this loop was inspired by pp_caller */
386 for (;;) 438 for (;;)
387 { 439 {
388 while (cxix >= 0) 440 while (cxix >= 0)
389 { 441 {
390 PERL_CONTEXT *cx = &ccstk[cxix--]; 442 PERL_CONTEXT *cx = &ccstk[cxix--];
391 443
392 if (CxTYPE (cx) == CXt_SUB) 444 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
393 { 445 {
394 CV *cv = cx->blk_sub.cv; 446 CV *cv = cx->blk_sub.cv;
395 447
396 if (CvDEPTH (cv)) 448 if (CvDEPTH (cv))
397 { 449 {
399 PUSHs ((SV *)CvPADLIST (cv)); 451 PUSHs ((SV *)CvPADLIST (cv));
400 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 452 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
401 PUSHs ((SV *)cv); 453 PUSHs ((SV *)cv);
402 454
403 CvDEPTH (cv) = 0; 455 CvDEPTH (cv) = 0;
404 get_padlist (cv); 456 get_padlist (aTHX_ cv);
405 } 457 }
406 } 458 }
407 } 459 }
408 460
409 if (top_si->si_type == PERLSI_MAIN) 461 if (top_si->si_type == PERLSI_MAIN)
410 break; 462 break;
411 463
412 top_si = top_si->si_prev; 464 top_si = top_si->si_prev;
413 ccstk = top_si->si_cxstack; 465 ccstk = top_si->si_cxstack;
414 cxix = top_si->si_cxix; 466 cxix = top_si->si_cxix;
415 } 467 }
416 468
417 PUTBACK; 469 PUTBACK;
418 } 470 }
419 471
420 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 472 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
421 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 473 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
422 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 474 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
475 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
423 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 476 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
424 477
425#define VAR(name,type)c->name = PL_ ## name; 478#define VAR(name,type)c->name = PL_ ## name;
426# include "state.h" 479# include "state.h"
427#undef VAR 480#undef VAR
431 * allocate various perl stacks. This is an exact copy 484 * allocate various perl stacks. This is an exact copy
432 * of perl.c:init_stacks, except that it uses less memory 485 * of perl.c:init_stacks, except that it uses less memory
433 * on the (sometimes correct) assumption that coroutines do 486 * on the (sometimes correct) assumption that coroutines do
434 * not usually need a lot of stackspace. 487 * not usually need a lot of stackspace.
435 */ 488 */
436#if PREFER_PERL_FUNCTIONS 489#if CORO_PREFER_PERL_FUNCTIONS
437# define coro_init_stacks init_stacks 490# define coro_init_stacks init_stacks
438#else 491#else
439static void 492static void
440coro_init_stacks () 493coro_init_stacks (pTHX)
441{ 494{
442 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 495 PL_curstackinfo = new_stackinfo(64, 6);
443 PL_curstackinfo->si_type = PERLSI_MAIN; 496 PL_curstackinfo->si_type = PERLSI_MAIN;
444 PL_curstack = PL_curstackinfo->si_stack; 497 PL_curstack = PL_curstackinfo->si_stack;
445 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 498 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
446 499
447 PL_stack_base = AvARRAY(PL_curstack); 500 PL_stack_base = AvARRAY(PL_curstack);
448 PL_stack_sp = PL_stack_base; 501 PL_stack_sp = PL_stack_base;
449 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 502 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
450 503
451 New(50,PL_tmps_stack,128,SV*); 504 New(50,PL_tmps_stack,64,SV*);
452 PL_tmps_floor = -1; 505 PL_tmps_floor = -1;
453 PL_tmps_ix = -1; 506 PL_tmps_ix = -1;
454 PL_tmps_max = 128; 507 PL_tmps_max = 64;
455 508
456 New(54,PL_markstack,32,I32); 509 New(54,PL_markstack,16,I32);
457 PL_markstack_ptr = PL_markstack; 510 PL_markstack_ptr = PL_markstack;
458 PL_markstack_max = PL_markstack + 32; 511 PL_markstack_max = PL_markstack + 16;
459 512
460#ifdef SET_MARK_OFFSET 513#ifdef SET_MARK_OFFSET
461 SET_MARK_OFFSET; 514 SET_MARK_OFFSET;
462#endif 515#endif
463 516
464 New(54,PL_scopestack,32,I32); 517 New(54,PL_scopestack,16,I32);
465 PL_scopestack_ix = 0; 518 PL_scopestack_ix = 0;
466 PL_scopestack_max = 32; 519 PL_scopestack_max = 16;
467 520
468 New(54,PL_savestack,64,ANY); 521 New(54,PL_savestack,64,ANY);
469 PL_savestack_ix = 0; 522 PL_savestack_ix = 0;
470 PL_savestack_max = 64; 523 PL_savestack_max = 64;
471 524
472#if !PERL_VERSION_ATLEAST (5,9,0) 525#if !PERL_VERSION_ATLEAST (5,9,0)
473 New(54,PL_retstack,16,OP*); 526 New(54,PL_retstack,4,OP*);
474 PL_retstack_ix = 0; 527 PL_retstack_ix = 0;
475 PL_retstack_max = 16; 528 PL_retstack_max = 4;
476#endif 529#endif
477} 530}
478#endif 531#endif
479 532
480/* 533/*
481 * destroy the stacks, the callchain etc... 534 * destroy the stacks, the callchain etc...
482 */ 535 */
483static void 536static void
484coro_destroy_stacks () 537coro_destroy_stacks (pTHX)
485{ 538{
486 if (!IN_DESTRUCT) 539 if (!IN_DESTRUCT)
487 { 540 {
488 /* restore all saved variables and stuff */ 541 /* restore all saved variables and stuff */
489 LEAVE_SCOPE (0); 542 LEAVE_SCOPE (0);
522#if !PERL_VERSION_ATLEAST (5,9,0) 575#if !PERL_VERSION_ATLEAST (5,9,0)
523 Safefree (PL_retstack); 576 Safefree (PL_retstack);
524#endif 577#endif
525} 578}
526 579
580static size_t
581coro_rss (struct coro *coro)
582{
583 size_t rss = sizeof (coro);
584
585 if (coro->mainstack)
586 {
587 if (coro->flags & CF_RUNNING)
588 {
589 #define VAR(name,type)coro->name = PL_ ## name;
590 # include "state.h"
591 #undef VAR
592 }
593
594 rss += sizeof (coro->curstackinfo);
595 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
596 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
597 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
598 rss += coro->tmps_max * sizeof (SV *);
599 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
600 rss += coro->scopestack_max * sizeof (I32);
601 rss += coro->savestack_max * sizeof (ANY);
602
603#if !PERL_VERSION_ATLEAST (5,9,0)
604 rss += coro->retstack_max * sizeof (OP *);
605#endif
606 }
607
608 return rss;
609}
610
527/** coroutine stack handling ************************************************/ 611/** coroutine stack handling ************************************************/
528 612
529static void 613static void
530setup_coro (struct coro *coro) 614setup_coro (pTHX_ struct coro *coro)
531{ 615{
532 /* 616 /*
533 * emulate part of the perl startup here. 617 * emulate part of the perl startup here.
534 */ 618 */
535
536 coro_init_stacks (); 619 coro_init_stacks (aTHX);
537 620
621 PL_runops = RUNOPS_DEFAULT;
538 PL_curcop = &PL_compiling; 622 PL_curcop = &PL_compiling;
539 PL_in_eval = EVAL_NULL; 623 PL_in_eval = EVAL_NULL;
624 PL_comppad = 0;
540 PL_curpm = 0; 625 PL_curpm = 0;
541 PL_localizing = 0; 626 PL_localizing = 0;
542 PL_dirty = 0; 627 PL_dirty = 0;
543 PL_restartop = 0; 628 PL_restartop = 0;
544 629
552 Zero (&myop, 1, LOGOP); 637 Zero (&myop, 1, LOGOP);
553 myop.op_next = Nullop; 638 myop.op_next = Nullop;
554 myop.op_flags = OPf_WANT_VOID; 639 myop.op_flags = OPf_WANT_VOID;
555 640
556 PUSHMARK (SP); 641 PUSHMARK (SP);
557 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 642 XPUSHs (av_shift (GvAV (PL_defgv)));
558 PUTBACK; 643 PUTBACK;
559 PL_op = (OP *)&myop; 644 PL_op = (OP *)&myop;
560 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 645 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
561 SPAGAIN; 646 SPAGAIN;
562 } 647 }
563 648
564 ENTER; /* necessary e.g. for dounwind */ 649 ENTER; /* necessary e.g. for dounwind */
565} 650}
566 651
567static void 652static void
568free_coro_mortal () 653free_coro_mortal (pTHX)
569{ 654{
570 if (coro_mortal) 655 if (coro_mortal)
571 { 656 {
572 SvREFCNT_dec (coro_mortal); 657 SvREFCNT_dec (coro_mortal);
573 coro_mortal = 0; 658 coro_mortal = 0;
574 } 659 }
575} 660}
576 661
662static int
663runops_trace (pTHX)
664{
665 COP *oldcop = 0;
666 int oldcxix = -2;
667 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
668 coro_cctx *cctx = coro->cctx;
669
670 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
671 {
672 PERL_ASYNC_CHECK ();
673
674 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
675 {
676 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
677 SV **bot, **top;
678 AV *av = newAV (); /* return values */
679 SV **cb;
680 runops_proc_t old_runops = PL_runops;
681 dSP;
682 ENTER;
683 SAVETMPS;
684 EXTEND (SP, 3);
685 PL_runops = RUNOPS_DEFAULT;
686
687 GV *gv = CvGV (cx->blk_sub.cv);
688 SV *fullname = sv_2mortal (newSV (0));
689 if (isGV (gv))
690 gv_efullname3 (fullname, gv, 0);
691
692 bot = PL_stack_base + cx->blk_oldsp + 1;
693 top = cx->blk_gimme == G_ARRAY ? SP + 1
694 : cx->blk_gimme == G_SCALAR ? bot + 1
695 : bot;
696
697 while (bot < top)
698 av_push (av, SvREFCNT_inc (*bot++));
699
700 PUSHMARK (SP);
701 PUSHs (&PL_sv_no);
702 PUSHs (fullname);
703 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
704 PUTBACK;
705 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
706 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
707 SPAGAIN;
708
709 FREETMPS;
710 LEAVE;
711 PL_runops = old_runops;
712 }
713
714 if (oldcop != PL_curcop)
715 {
716 oldcop = PL_curcop;
717
718 if (PL_curcop != &PL_compiling)
719 {
720 SV **cb;
721 runops_proc_t old_runops = PL_runops;
722 dSP;
723 ENTER;
724 SAVETMPS;
725 EXTEND (SP, 3);
726 PL_runops = RUNOPS_DEFAULT;
727
728 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB)
729 {
730 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
731
732 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
733 {
734 GV *gv = CvGV (cx->blk_sub.cv);
735 SV *fullname = sv_2mortal (newSV (0));
736 if (isGV (gv))
737 gv_efullname3 (fullname, gv, 0);
738
739 PUSHMARK (SP);
740 PUSHs (&PL_sv_yes);
741 PUSHs (fullname);
742 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
743 PUTBACK;
744 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
745 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
746 SPAGAIN;
747 }
748
749 oldcxix = cxstack_ix;
750 }
751
752 if (cctx->flags & CC_TRACE_LINE)
753 {
754 PUSHMARK (SP);
755 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
756 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
757 PUTBACK;
758 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
759 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
760 SPAGAIN;
761 }
762
763 FREETMPS;
764 LEAVE;
765 PL_runops = old_runops;
766 }
767 }
768 }
769
770 TAINT_NOT;
771 return 0;
772}
773
577/* inject a fake call to Coro::State::_cctx_init into the execution */ 774/* inject a fake call to Coro::State::_cctx_init into the execution */
775/* _cctx_init should be careful, as it could be called at almost any time */
776/* during execution of a perl program */
578static void NOINLINE 777static void NOINLINE
579prepare_cctx (coro_cctx *cctx) 778prepare_cctx (pTHX_ coro_cctx *cctx)
580{ 779{
581 dSP; 780 dSP;
582 LOGOP myop; 781 LOGOP myop;
782
783 PL_top_env = &PL_start_env;
784
785 if (cctx->flags & CC_TRACE)
786 PL_runops = runops_trace;
583 787
584 Zero (&myop, 1, LOGOP); 788 Zero (&myop, 1, LOGOP);
585 myop.op_next = PL_op; 789 myop.op_next = PL_op;
586 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 790 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
587 791
593 PL_op = (OP *)&myop; 797 PL_op = (OP *)&myop;
594 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 798 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
595 SPAGAIN; 799 SPAGAIN;
596} 800}
597 801
802/*
803 * this is a _very_ stripped down perl interpreter ;)
804 */
598static void 805static void
599coro_run (void *arg) 806coro_run (void *arg)
600{ 807{
808 dTHX;
809
601 /* coro_run is the alternative tail of transfer(), so unlock here. */ 810 /* coro_run is the alternative tail of transfer(), so unlock here. */
602 UNLOCK; 811 UNLOCK;
603 812
604 /* 813 /* we now skip the entersub that lead to transfer() */
605 * this is a _very_ stripped down perl interpreter ;) 814 PL_op = PL_op->op_next;
606 */
607 PL_top_env = &PL_start_env;
608 815
609 /* inject call to cctx_init */ 816 /* inject a fake subroutine call to cctx_init */
610 prepare_cctx ((coro_cctx *)arg); 817 prepare_cctx (aTHX_ (coro_cctx *)arg);
611 818
612 /* somebody will hit me for both perl_run and PL_restartop */ 819 /* somebody or something will hit me for both perl_run and PL_restartop */
613 PL_restartop = PL_op; 820 PL_restartop = PL_op;
614 perl_run (PL_curinterp); 821 perl_run (PL_curinterp);
615 822
616 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 823 /*
617 abort (); 824 * If perl-run returns we assume exit() was being called or the coro
825 * fell off the end, which seems to be the only valid (non-bug)
826 * reason for perl_run to return. We try to exit by jumping to the
827 * bootstrap-time "top" top_env, as we cannot restore the "main"
828 * coroutine as Coro has no such concept
829 */
830 PL_top_env = main_top_env;
831 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
618} 832}
619 833
620static coro_cctx * 834static coro_cctx *
621cctx_new () 835cctx_new ()
622{ 836{
623 coro_cctx *cctx; 837 coro_cctx *cctx;
838 void *stack_start;
839 size_t stack_size;
624 840
625 ++cctx_count; 841 ++cctx_count;
626 842
627 Newz (0, cctx, 1, coro_cctx); 843 Newz (0, cctx, 1, coro_cctx);
628 844
629#if HAVE_MMAP 845#if HAVE_MMAP
630 846
631 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; 847 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
632 /* mmap supposedly does allocate-on-write for us */ 848 /* mmap supposedly does allocate-on-write for us */
633 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 849 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
634 850
635 if (cctx->sptr == (void *)-1) 851 if (cctx->sptr != (void *)-1)
636 {
637 perror ("FATAL: unable to mmap stack for coroutine");
638 _exit (EXIT_FAILURE);
639 } 852 {
640
641# if STACKGUARD 853# if CORO_STACKGUARD
642 mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); 854 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
643# endif 855# endif
856 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
857 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
858 cctx->flags |= CC_MAPPED;
859 }
860 else
861#endif
862 {
863 cctx->ssize = coro_stacksize * (long)sizeof (long);
864 New (0, cctx->sptr, coro_stacksize, long);
644 865
645#else
646
647 cctx->ssize = STACKSIZE * (long)sizeof (long);
648 New (0, cctx->sptr, STACKSIZE, long);
649
650 if (!cctx->sptr) 866 if (!cctx->sptr)
651 { 867 {
652 perror ("FATAL: unable to malloc stack for coroutine"); 868 perror ("FATAL: unable to allocate stack for coroutine");
653 _exit (EXIT_FAILURE); 869 _exit (EXIT_FAILURE);
654 } 870 }
655 871
656#endif 872 stack_start = cctx->sptr;
873 stack_size = cctx->ssize;
874 }
657 875
658#if USE_VALGRIND 876 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
659 cctx->valgrind_id = VALGRIND_STACK_REGISTER (
660 STACKGUARD * PAGESIZE + (char *)cctx->sptr,
661 cctx->ssize + (char *)cctx->sptr
662 );
663#endif
664
665 coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); 877 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
666 878
667 return cctx; 879 return cctx;
668} 880}
669 881
670static void 882static void
673 if (!cctx) 885 if (!cctx)
674 return; 886 return;
675 887
676 --cctx_count; 888 --cctx_count;
677 889
678#if USE_VALGRIND 890#if CORO_USE_VALGRIND
679 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 891 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
680#endif 892#endif
681 893
682#if HAVE_MMAP 894#if HAVE_MMAP
895 if (cctx->flags & CC_MAPPED)
683 munmap (cctx->sptr, cctx->ssize); 896 munmap (cctx->sptr, cctx->ssize);
684#else 897 else
898#endif
685 Safefree (cctx->sptr); 899 Safefree (cctx->sptr);
686#endif
687 900
688 Safefree (cctx); 901 Safefree (cctx);
689} 902}
690 903
691static coro_cctx * 904static coro_cctx *
692cctx_get () 905cctx_get (pTHX)
693{ 906{
694 coro_cctx *cctx;
695
696 if (cctx_first) 907 while (cctx_first)
697 { 908 {
698 cctx = cctx_first; 909 coro_cctx *cctx = cctx_first;
699 cctx_first = cctx->next; 910 cctx_first = cctx->next;
700 --cctx_idle; 911 --cctx_idle;
701 } 912
702 else 913 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
703 { 914 return cctx;
704 cctx = cctx_new (); 915
705 PL_op = PL_op->op_next; 916 cctx_destroy (cctx);
706 } 917 }
707 918
708 return cctx; 919 return cctx_new ();
709} 920}
710 921
711static void 922static void
712cctx_put (coro_cctx *cctx) 923cctx_put (coro_cctx *cctx)
713{ 924{
716 { 927 {
717 coro_cctx *first = cctx_first; 928 coro_cctx *first = cctx_first;
718 cctx_first = first->next; 929 cctx_first = first->next;
719 --cctx_idle; 930 --cctx_idle;
720 931
721 assert (!first->inuse);
722 cctx_destroy (first); 932 cctx_destroy (first);
723 } 933 }
724 934
725 ++cctx_idle; 935 ++cctx_idle;
726 cctx->next = cctx_first; 936 cctx->next = cctx_first;
729 939
730/** coroutine switching *****************************************************/ 940/** coroutine switching *****************************************************/
731 941
732/* never call directly, always through the coro_state_transfer global variable */ 942/* never call directly, always through the coro_state_transfer global variable */
733static void NOINLINE 943static void NOINLINE
734transfer (struct coro *prev, struct coro *next) 944transfer (pTHX_ struct coro *prev, struct coro *next)
735{ 945{
736 dSTACKLEVEL; 946 dSTACKLEVEL;
737 947
738 /* sometimes transfer is only called to set idle_sp */ 948 /* sometimes transfer is only called to set idle_sp */
739 if (!next) 949 if (!next)
747 957
748 if (prev->flags & CF_NEW) 958 if (prev->flags & CF_NEW)
749 { 959 {
750 /* create a new empty context */ 960 /* create a new empty context */
751 Newz (0, prev->cctx, 1, coro_cctx); 961 Newz (0, prev->cctx, 1, coro_cctx);
752 prev->cctx->inuse = 1;
753 prev->flags &= ~CF_NEW; 962 prev->flags &= ~CF_NEW;
754 prev->flags |= CF_RUNNING; 963 prev->flags |= CF_RUNNING;
755 } 964 }
756 965
757 /*TODO: must not croak here */ 966 /*TODO: must not croak here */
772 if (next->flags & CF_NEW) 981 if (next->flags & CF_NEW)
773 { 982 {
774 /* need to start coroutine */ 983 /* need to start coroutine */
775 next->flags &= ~CF_NEW; 984 next->flags &= ~CF_NEW;
776 /* first get rid of the old state */ 985 /* first get rid of the old state */
777 save_perl (prev); 986 save_perl (aTHX_ prev);
778 /* setup coroutine call */ 987 /* setup coroutine call */
779 setup_coro (next); 988 setup_coro (aTHX_ next);
780 /* need a new stack */
781 assert (!next->cctx);
782 } 989 }
783 else 990 else
784 { 991 {
785 /* coroutine already started */ 992 /* coroutine already started */
786 save_perl (prev); 993 save_perl (aTHX_ prev);
787 load_perl (next); 994 load_perl (aTHX_ next);
788 } 995 }
789 996
790 prev__cctx = prev->cctx; 997 prev__cctx = prev->cctx;
791 998
792 /* possibly "free" the cctx */ 999 /* possibly "free" the cctx */
793 if (prev__cctx->idle_sp == STACKLEVEL) 1000 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
794 { 1001 {
795 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1002 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
796 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); 1003 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
797 1004
798 prev->cctx = 0; 1005 prev->cctx = 0;
799 1006
800 cctx_put (prev__cctx); 1007 cctx_put (prev__cctx);
801 prev__cctx->inuse = 0;
802 } 1008 }
803 1009
804 if (!next->cctx) 1010 if (!next->cctx)
805 {
806 next->cctx = cctx_get (); 1011 next->cctx = cctx_get (aTHX);
807 assert (!next->cctx->inuse);
808 next->cctx->inuse = 1;
809 }
810 1012
811 if (prev__cctx != next->cctx) 1013 if (prev__cctx != next->cctx)
812 { 1014 {
813 prev__cctx->top_env = PL_top_env; 1015 prev__cctx->top_env = PL_top_env;
814 PL_top_env = next->cctx->top_env; 1016 PL_top_env = next->cctx->top_env;
815 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1017 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
816 } 1018 }
817 1019
818 free_coro_mortal (); 1020 free_coro_mortal (aTHX);
819 UNLOCK; 1021 UNLOCK;
820 } 1022 }
821} 1023}
822 1024
823struct transfer_args 1025struct transfer_args
824{ 1026{
825 struct coro *prev, *next; 1027 struct coro *prev, *next;
826}; 1028};
827 1029
828#define TRANSFER(ta) transfer ((ta).prev, (ta).next) 1030#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
829 1031
830/** high level stuff ********************************************************/ 1032/** high level stuff ********************************************************/
831 1033
832static int 1034static int
833coro_state_destroy (struct coro *coro) 1035coro_state_destroy (pTHX_ struct coro *coro)
834{ 1036{
835 if (coro->flags & CF_DESTROYED) 1037 if (coro->flags & CF_DESTROYED)
836 return 0; 1038 return 0;
837 1039
838 coro->flags |= CF_DESTROYED; 1040 coro->flags |= CF_DESTROYED;
858 temp.save = CORO_SAVE_ALL; 1060 temp.save = CORO_SAVE_ALL;
859 1061
860 if (coro->flags & CF_RUNNING) 1062 if (coro->flags & CF_RUNNING)
861 croak ("FATAL: tried to destroy currently running coroutine"); 1063 croak ("FATAL: tried to destroy currently running coroutine");
862 1064
863 save_perl (&temp); 1065 save_perl (aTHX_ &temp);
864 load_perl (coro); 1066 load_perl (aTHX_ coro);
865 1067
866 coro_destroy_stacks (); 1068 coro_destroy_stacks (aTHX);
867 1069
868 load_perl (&temp); /* this will get rid of defsv etc.. */ 1070 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
869 1071
870 coro->mainstack = 0; 1072 coro->mainstack = 0;
871 } 1073 }
872 1074
873 cctx_destroy (coro->cctx); 1075 cctx_destroy (coro->cctx);
874 SvREFCNT_dec (coro->args); 1076 SvREFCNT_dec (coro->args);
875 1077
1078 if (coro->next) coro->next->prev = coro->prev;
1079 if (coro->prev) coro->prev->next = coro->next;
1080 if (coro == coro_first) coro_first = coro->next;
1081
876 return 1; 1082 return 1;
877} 1083}
878 1084
879static int 1085static int
880coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1086coro_state_free (pTHX_ SV *sv, MAGIC *mg)
881{ 1087{
882 struct coro *coro = (struct coro *)mg->mg_ptr; 1088 struct coro *coro = (struct coro *)mg->mg_ptr;
883 mg->mg_ptr = 0; 1089 mg->mg_ptr = 0;
884 1090
1091 coro->hv = 0;
1092
885 if (--coro->refcnt < 0) 1093 if (--coro->refcnt < 0)
886 { 1094 {
887 coro_state_destroy (coro); 1095 coro_state_destroy (aTHX_ coro);
888 Safefree (coro); 1096 Safefree (coro);
889 } 1097 }
890 1098
891 return 0; 1099 return 0;
892} 1100}
910#else 1118#else
911# define MGf_DUP 0 1119# define MGf_DUP 0
912#endif 1120#endif
913}; 1121};
914 1122
915static struct coro *
916SvSTATE (SV *coro)
917{
918 HV *stash;
919 MAGIC *mg;
920
921 if (SvROK (coro))
922 coro = SvRV (coro);
923
924 stash = SvSTASH (coro);
925 if (stash != coro_stash && stash != coro_state_stash)
926 {
927 /* very slow, but rare, check */
928 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
929 croak ("Coro::State object required");
930 }
931
932 mg = SvMAGIC (coro);
933 assert (mg->mg_type == PERL_MAGIC_ext);
934 return (struct coro *)mg->mg_ptr;
935}
936
937static void 1123static void
938prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1124prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
939{ 1125{
940 ta->prev = SvSTATE (prev_sv); 1126 ta->prev = SvSTATE (prev_sv);
941 ta->next = SvSTATE (next_sv); 1127 ta->next = SvSTATE (next_sv);
942} 1128}
943 1129
944static void 1130static void
945api_transfer (SV *prev_sv, SV *next_sv) 1131api_transfer (SV *prev_sv, SV *next_sv)
946{ 1132{
1133 dTHX;
947 struct transfer_args ta; 1134 struct transfer_args ta;
948 1135
949 prepare_transfer (&ta, prev_sv, next_sv); 1136 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
950 TRANSFER (ta); 1137 TRANSFER (ta);
951} 1138}
952 1139
953static int 1140static int
954api_save (SV *coro_sv, int new_save) 1141api_save (SV *coro_sv, int new_save)
955{ 1142{
1143 dTHX;
956 struct coro *coro = SvSTATE (coro_sv); 1144 struct coro *coro = SvSTATE (coro_sv);
957 int old_save = coro->save; 1145 int old_save = coro->save;
958 1146
959 if (new_save >= 0) 1147 if (new_save >= 0)
960 coro->save = new_save; 1148 coro->save = new_save;
963} 1151}
964 1152
965/** Coro ********************************************************************/ 1153/** Coro ********************************************************************/
966 1154
967static void 1155static void
968coro_enq (SV *coro_sv) 1156coro_enq (pTHX_ SV *coro_sv)
969{ 1157{
970 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1158 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
971} 1159}
972 1160
973static SV * 1161static SV *
974coro_deq (int min_prio) 1162coro_deq (pTHX_ int min_prio)
975{ 1163{
976 int prio = PRIO_MAX - PRIO_MIN; 1164 int prio = PRIO_MAX - PRIO_MIN;
977 1165
978 min_prio -= PRIO_MIN; 1166 min_prio -= PRIO_MIN;
979 if (min_prio < 0) 1167 if (min_prio < 0)
987} 1175}
988 1176
989static int 1177static int
990api_ready (SV *coro_sv) 1178api_ready (SV *coro_sv)
991{ 1179{
1180 dTHX;
992 struct coro *coro; 1181 struct coro *coro;
993 1182
994 if (SvROK (coro_sv)) 1183 if (SvROK (coro_sv))
995 coro_sv = SvRV (coro_sv); 1184 coro_sv = SvRV (coro_sv);
996 1185
1000 return 0; 1189 return 0;
1001 1190
1002 coro->flags |= CF_READY; 1191 coro->flags |= CF_READY;
1003 1192
1004 LOCK; 1193 LOCK;
1005 coro_enq (SvREFCNT_inc (coro_sv)); 1194 coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1006 ++coro_nready; 1195 ++coro_nready;
1007 UNLOCK; 1196 UNLOCK;
1008 1197
1009 return 1; 1198 return 1;
1010} 1199}
1011 1200
1012static int 1201static int
1013api_is_ready (SV *coro_sv) 1202api_is_ready (SV *coro_sv)
1014{ 1203{
1204 dTHX;
1015 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1205 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1016} 1206}
1017 1207
1018static void 1208static void
1019prepare_schedule (struct transfer_args *ta) 1209prepare_schedule (pTHX_ struct transfer_args *ta)
1020{ 1210{
1021 SV *prev_sv, *next_sv; 1211 SV *prev_sv, *next_sv;
1022 1212
1023 for (;;) 1213 for (;;)
1024 { 1214 {
1025 LOCK; 1215 LOCK;
1026 next_sv = coro_deq (PRIO_MIN); 1216 next_sv = coro_deq (aTHX_ PRIO_MIN);
1027 1217
1028 /* nothing to schedule: call the idle handler */ 1218 /* nothing to schedule: call the idle handler */
1029 if (!next_sv) 1219 if (!next_sv)
1030 { 1220 {
1031 dSP; 1221 dSP;
1066 1256
1067 assert (ta->next->flags & CF_READY); 1257 assert (ta->next->flags & CF_READY);
1068 ta->next->flags &= ~CF_READY; 1258 ta->next->flags &= ~CF_READY;
1069 1259
1070 LOCK; 1260 LOCK;
1071 free_coro_mortal (); 1261 free_coro_mortal (aTHX);
1072 coro_mortal = prev_sv; 1262 coro_mortal = prev_sv;
1073 UNLOCK; 1263 UNLOCK;
1074} 1264}
1075 1265
1076static void 1266static void
1077prepare_cede (struct transfer_args *ta) 1267prepare_cede (pTHX_ struct transfer_args *ta)
1078{ 1268{
1079 api_ready (coro_current); 1269 api_ready (coro_current);
1080 prepare_schedule (ta); 1270 prepare_schedule (aTHX_ ta);
1081} 1271}
1082 1272
1083static int 1273static int
1084prepare_cede_notself (struct transfer_args *ta) 1274prepare_cede_notself (pTHX_ struct transfer_args *ta)
1085{ 1275{
1086 if (coro_nready) 1276 if (coro_nready)
1087 { 1277 {
1088 SV *prev = SvRV (coro_current); 1278 SV *prev = SvRV (coro_current);
1089 prepare_schedule (ta); 1279 prepare_schedule (aTHX_ ta);
1090 api_ready (prev); 1280 api_ready (prev);
1091 return 1; 1281 return 1;
1092 } 1282 }
1093 else 1283 else
1094 return 0; 1284 return 0;
1095} 1285}
1096 1286
1097static void 1287static void
1098api_schedule (void) 1288api_schedule (void)
1099{ 1289{
1290 dTHX;
1100 struct transfer_args ta; 1291 struct transfer_args ta;
1101 1292
1102 prepare_schedule (&ta); 1293 prepare_schedule (aTHX_ &ta);
1103 TRANSFER (ta); 1294 TRANSFER (ta);
1104} 1295}
1105 1296
1106static int 1297static int
1107api_cede (void) 1298api_cede (void)
1108{ 1299{
1300 dTHX;
1109 struct transfer_args ta; 1301 struct transfer_args ta;
1110 1302
1111 prepare_cede (&ta); 1303 prepare_cede (aTHX_ &ta);
1112 1304
1113 if (ta.prev != ta.next) 1305 if (ta.prev != ta.next)
1114 { 1306 {
1115 TRANSFER (ta); 1307 TRANSFER (ta);
1116 return 1; 1308 return 1;
1120} 1312}
1121 1313
1122static int 1314static int
1123api_cede_notself (void) 1315api_cede_notself (void)
1124{ 1316{
1317 dTHX;
1125 struct transfer_args ta; 1318 struct transfer_args ta;
1126 1319
1127 if (prepare_cede_notself (&ta)) 1320 if (prepare_cede_notself (aTHX_ &ta))
1128 { 1321 {
1129 TRANSFER (ta); 1322 TRANSFER (ta);
1130 return 1; 1323 return 1;
1131 } 1324 }
1132 else 1325 else
1143 MUTEX_INIT (&coro_mutex); 1336 MUTEX_INIT (&coro_mutex);
1144#endif 1337#endif
1145 BOOT_PAGESIZE; 1338 BOOT_PAGESIZE;
1146 1339
1147 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1340 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1341
1342 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1343 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1344 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1345 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1148 1346
1149 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1347 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1150 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1348 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1151 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); 1349 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1152 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); 1350 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1351 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1352 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1153 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1353 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1154 1354
1155 main_mainstack = PL_mainstack; 1355 main_mainstack = PL_mainstack;
1356 main_top_env = PL_top_env;
1357
1358 while (main_top_env->je_prev)
1359 main_top_env = main_top_env->je_prev;
1156 1360
1157 coroapi.ver = CORO_API_VERSION; 1361 coroapi.ver = CORO_API_VERSION;
1158 coroapi.transfer = api_transfer; 1362 coroapi.transfer = api_transfer;
1159 1363
1160 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1364 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
1168 HV *hv; 1372 HV *hv;
1169 int i; 1373 int i;
1170 1374
1171 Newz (0, coro, 1, struct coro); 1375 Newz (0, coro, 1, struct coro);
1172 coro->args = newAV (); 1376 coro->args = newAV ();
1173 coro->save = CORO_SAVE_ALL; 1377 coro->save = CORO_SAVE_DEF;
1174 coro->flags = CF_NEW; 1378 coro->flags = CF_NEW;
1175 1379
1380 if (coro_first) coro_first->prev = coro;
1381 coro->next = coro_first;
1382 coro_first = coro;
1383
1176 hv = newHV (); 1384 coro->hv = hv = newHV ();
1177 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1385 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1178 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1386 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1179 1387
1180 for (i = 1; i < items; i++) 1388 for (i = 1; i < items; i++)
1181 av_push (coro->args, newSVsv (ST (i))); 1389 av_push (coro->args, newSVsv (ST (i)));
1185 1393
1186int 1394int
1187save (SV *coro, int new_save = -1) 1395save (SV *coro, int new_save = -1)
1188 CODE: 1396 CODE:
1189 RETVAL = api_save (coro, new_save); 1397 RETVAL = api_save (coro, new_save);
1398 OUTPUT:
1399 RETVAL
1400
1401int
1402save_also (SV *coro_sv, int save_also)
1403 CODE:
1404{
1405 struct coro *coro = SvSTATE (coro_sv);
1406 RETVAL = coro->save;
1407 coro->save |= save_also;
1408}
1190 OUTPUT: 1409 OUTPUT:
1191 RETVAL 1410 RETVAL
1192 1411
1193void 1412void
1194_set_stacklevel (...) 1413_set_stacklevel (...)
1210 1429
1211 case 1: 1430 case 1:
1212 if (items != 2) 1431 if (items != 2)
1213 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); 1432 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1214 1433
1215 prepare_transfer (&ta, ST (0), ST (1)); 1434 prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1216 break; 1435 break;
1217 1436
1218 case 2: 1437 case 2:
1219 prepare_schedule (&ta); 1438 prepare_schedule (aTHX_ &ta);
1220 break; 1439 break;
1221 1440
1222 case 3: 1441 case 3:
1223 prepare_cede (&ta); 1442 prepare_cede (aTHX_ &ta);
1224 break; 1443 break;
1225 1444
1226 case 4: 1445 case 4:
1227 if (!prepare_cede_notself (&ta)) 1446 if (!prepare_cede_notself (aTHX_ &ta))
1228 XSRETURN_EMPTY; 1447 XSRETURN_EMPTY;
1229 1448
1230 break; 1449 break;
1231 } 1450 }
1232 1451
1238} 1457}
1239 1458
1240bool 1459bool
1241_destroy (SV *coro_sv) 1460_destroy (SV *coro_sv)
1242 CODE: 1461 CODE:
1243 RETVAL = coro_state_destroy (SvSTATE (coro_sv)); 1462 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1244 OUTPUT: 1463 OUTPUT:
1245 RETVAL 1464 RETVAL
1246 1465
1247void 1466void
1248_exit (code) 1467_exit (code)
1250 PROTOTYPE: $ 1469 PROTOTYPE: $
1251 CODE: 1470 CODE:
1252 _exit (code); 1471 _exit (code);
1253 1472
1254int 1473int
1474cctx_stacksize (int new_stacksize = 0)
1475 CODE:
1476 RETVAL = coro_stacksize;
1477 if (new_stacksize)
1478 coro_stacksize = new_stacksize;
1479 OUTPUT:
1480 RETVAL
1481
1482int
1255cctx_count () 1483cctx_count ()
1256 CODE: 1484 CODE:
1257 RETVAL = cctx_count; 1485 RETVAL = cctx_count;
1258 OUTPUT: 1486 OUTPUT:
1259 RETVAL 1487 RETVAL
1263 CODE: 1491 CODE:
1264 RETVAL = cctx_idle; 1492 RETVAL = cctx_idle;
1265 OUTPUT: 1493 OUTPUT:
1266 RETVAL 1494 RETVAL
1267 1495
1496void
1497list ()
1498 PPCODE:
1499{
1500 struct coro *coro;
1501 for (coro = coro_first; coro; coro = coro->next)
1502 if (coro->hv)
1503 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1504}
1505
1506void
1507call (Coro::State coro, SV *coderef)
1508 ALIAS:
1509 eval = 1
1510 CODE:
1511{
1512 if (coro->mainstack)
1513 {
1514 struct coro temp;
1515 Zero (&temp, 1, struct coro);
1516 temp.save = CORO_SAVE_ALL;
1517
1518 if (!(coro->flags & CF_RUNNING))
1519 {
1520 save_perl (aTHX_ &temp);
1521 load_perl (aTHX_ coro);
1522 }
1523
1524 {
1525 dSP;
1526 ENTER;
1527 SAVETMPS;
1528 PUSHMARK (SP);
1529 PUTBACK;
1530 if (ix)
1531 eval_sv (coderef, 0);
1532 else
1533 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1534 SPAGAIN;
1535 FREETMPS;
1536 LEAVE;
1537 PUTBACK;
1538 }
1539
1540 if (!(coro->flags & CF_RUNNING))
1541 {
1542 save_perl (aTHX_ coro);
1543 load_perl (aTHX_ &temp);
1544 }
1545 }
1546}
1547
1548SV *
1549is_ready (Coro::State coro)
1550 PROTOTYPE: $
1551 ALIAS:
1552 is_ready = CF_READY
1553 is_running = CF_RUNNING
1554 is_new = CF_NEW
1555 is_destroyed = CF_DESTROYED
1556 CODE:
1557 RETVAL = boolSV (coro->flags & ix);
1558 OUTPUT:
1559 RETVAL
1560
1561void
1562trace (Coro::State coro, int flags = CC_TRACE | CC_TRACE_SUB)
1563 CODE:
1564 if (flags & CC_TRACE)
1565 {
1566 if (!coro->cctx)
1567 coro->cctx = cctx_new ();
1568 else if (!(coro->cctx->flags & CC_TRACE))
1569 croak ("cannot enable tracing on coroutine with custom stack");
1570
1571 coro->cctx->flags |= flags & (CC_TRACE | CC_TRACE_ALL);
1572 }
1573 else
1574 if (coro->cctx && coro->cctx->flags & CC_TRACE)
1575 {
1576 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1577 coro->cctx->flags |= CC_NOREUSE;
1578
1579 if (coro->flags & CF_RUNNING)
1580 PL_runops = RUNOPS_DEFAULT;
1581 else
1582 coro->runops = RUNOPS_DEFAULT;
1583 }
1584
1585SV *
1586has_stack (Coro::State coro)
1587 PROTOTYPE: $
1588 CODE:
1589 RETVAL = boolSV (!!coro->cctx);
1590 OUTPUT:
1591 RETVAL
1592
1593int
1594is_traced (Coro::State coro)
1595 PROTOTYPE: $
1596 CODE:
1597 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1598 OUTPUT:
1599 RETVAL
1600
1601IV
1602rss (Coro::State coro)
1603 PROTOTYPE: $
1604 CODE:
1605 RETVAL = coro_rss (coro);
1606 OUTPUT:
1607 RETVAL
1608
1609
1268MODULE = Coro::State PACKAGE = Coro 1610MODULE = Coro::State PACKAGE = Coro
1269 1611
1270BOOT: 1612BOOT:
1271{ 1613{
1272 int i; 1614 int i;
1615
1616 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1617 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1618 av_async_pool = get_av ("Coro::async_pool", TRUE);
1619
1620 coro_current = get_sv ("Coro::current", FALSE);
1621 SvREADONLY_on (coro_current);
1273 1622
1274 coro_stash = gv_stashpv ("Coro", TRUE); 1623 coro_stash = gv_stashpv ("Coro", TRUE);
1275 1624
1276 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1625 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1277 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1626 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1278 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1627 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1279 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1628 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1280 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1629 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1281 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1630 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1282
1283 coro_current = get_sv ("Coro::current", FALSE);
1284 SvREADONLY_on (coro_current);
1285 1631
1286 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1632 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1287 coro_ready[i] = newAV (); 1633 coro_ready[i] = newAV ();
1288 1634
1289 { 1635 {
1339 CODE: 1685 CODE:
1340 RETVAL = boolSV (api_ready (self)); 1686 RETVAL = boolSV (api_ready (self));
1341 OUTPUT: 1687 OUTPUT:
1342 RETVAL 1688 RETVAL
1343 1689
1344SV *
1345is_ready (SV *self)
1346 PROTOTYPE: $
1347 CODE:
1348 RETVAL = boolSV (api_is_ready (self));
1349 OUTPUT:
1350 RETVAL
1351
1352int 1690int
1353nready (...) 1691nready (...)
1354 PROTOTYPE: 1692 PROTOTYPE:
1355 CODE: 1693 CODE:
1356 RETVAL = coro_nready; 1694 RETVAL = coro_nready;
1357 OUTPUT: 1695 OUTPUT:
1358 RETVAL 1696 RETVAL
1359 1697
1698# for async_pool speedup
1699void
1700_pool_1 (SV *cb)
1701 CODE:
1702{
1703 int i, len;
1704 HV *hv = (HV *)SvRV (coro_current);
1705 AV *defav = GvAV (PL_defgv);
1706 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1707 AV *invoke_av;
1708
1709 if (!invoke)
1710 croak ("\3terminate\2\n");
1711
1712 hv_store (hv, "desc", sizeof ("desc") - 1,
1713 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1714
1715 invoke_av = (AV *)SvRV (invoke);
1716 len = av_len (invoke_av);
1717
1718 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1719
1720 if (len > 0)
1721 {
1722 av_fill (defav, len - 1);
1723 for (i = 0; i < len; ++i)
1724 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1725 }
1726
1727 SvREFCNT_dec (invoke);
1728}
1729
1730void
1731_pool_2 (SV *cb)
1732 CODE:
1733{
1734 struct coro *coro = SvSTATE (coro_current);
1735
1736 sv_setsv (cb, &PL_sv_undef);
1737
1738 if (coro_rss (coro) > SvIV (sv_pool_rss)
1739 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1740 croak ("\3terminate\2\n");
1741
1742 av_clear (GvAV (PL_defgv));
1743 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1744 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1745 coro->save = CORO_SAVE_DEF;
1746 coro->prio = 0;
1747 av_push (av_async_pool, newSVsv (coro_current));
1748}
1749
1750
1360MODULE = Coro::State PACKAGE = Coro::AIO 1751MODULE = Coro::State PACKAGE = Coro::AIO
1361 1752
1362SV * 1753SV *
1363_get_state () 1754_get_state ()
1364 CODE: 1755 CODE:

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