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Comparing Coro/Coro/State.xs (file contents):
Revision 1.131 by root, Fri Dec 29 11:37:49 2006 UTC vs.
Revision 1.175 by root, Sun Sep 30 13:43:45 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
… …
112#else 116#else
113# define LOCK (void)0 117# define LOCK (void)0
114# define UNLOCK (void)0 118# define UNLOCK (void)0
115#endif 119#endif
116 120
121/* helper storage struct for Coro::AIO */
117struct io_state 122struct io_state
118{ 123{
119 int errorno; 124 int errorno;
120 I32 laststype; 125 I32 laststype;
121 int laststatval; 126 int laststatval;
122 Stat_t statcache; 127 Stat_t statcache;
123}; 128};
124 129
130static size_t coro_stacksize = CORO_STACKSIZE;
125static struct CoroAPI coroapi; 131static struct CoroAPI coroapi;
126static 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;
127static HV *coro_state_stash, *coro_stash; 134static HV *coro_state_stash, *coro_stash;
128static SV *coro_mortal; /* will be freed after next transfer */ 135static SV *coro_mortal; /* will be freed after next transfer */
129 136
137/* async_pool helper stuff */
138static SV *sv_pool_rss;
139static SV *sv_pool_size;
140static AV *av_async_pool;
141
130static struct coro_cctx *cctx_first; 142static struct coro_cctx *cctx_first;
131static 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};
132 153
133/* this is a structure representing a c-level coroutine */ 154/* this is a structure representing a c-level coroutine */
134typedef struct coro_cctx { 155typedef struct coro_cctx {
135 struct coro_cctx *next; 156 struct coro_cctx *next;
136 157
137 /* the stack */ 158 /* the stack */
138 void *sptr; 159 void *sptr;
139 long ssize; /* positive == mmap, otherwise malloc */ 160 size_t ssize;
140 161
141 /* cpu state */ 162 /* cpu state */
142 void *idle_sp; /* sp of top-level transfer/schedule/cede call */ 163 void *idle_sp; /* sp of top-level transfer/schedule/cede call */
164 JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */
143 JMPENV *top_env; 165 JMPENV *top_env;
144 coro_context cctx; 166 coro_context cctx;
145 167
146 int inuse;
147
148#if USE_VALGRIND 168#if CORO_USE_VALGRIND
149 int valgrind_id; 169 int valgrind_id;
150#endif 170#endif
171 unsigned char flags;
151} coro_cctx; 172} coro_cctx;
152 173
153enum { 174enum {
154 CF_RUNNING = 0x0001, /* coroutine is running */ 175 CF_RUNNING = 0x0001, /* coroutine is running */
155 CF_READY = 0x0002, /* coroutine is ready */ 176 CF_READY = 0x0002, /* coroutine is ready */
156 CF_NEW = 0x0004, /* ahs never been switched to */ 177 CF_NEW = 0x0004, /* has never been switched to */
178 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
157}; 179};
158 180
159/* this is a structure representing a perl-level coroutine */ 181/* this is a structure representing a perl-level coroutine */
160struct coro { 182struct coro {
161 /* the c coroutine allocated to this perl coroutine, if any */ 183 /* the c coroutine allocated to this perl coroutine, if any */
… …
169 191
170 /* optionally saved, might be zero */ 192 /* optionally saved, might be zero */
171 AV *defav; /* @_ */ 193 AV *defav; /* @_ */
172 SV *defsv; /* $_ */ 194 SV *defsv; /* $_ */
173 SV *errsv; /* $@ */ 195 SV *errsv; /* $@ */
196 GV *deffh; /* default filehandle */
174 SV *irssv; /* $/ */ 197 SV *irssv; /* $/ */
175 SV *irssv_sv; /* real $/ cache */ 198 SV *irssv_sv; /* real $/ cache */
176 199
177#define VAR(name,type) type name; 200#define VAR(name,type) type name;
178# include "state.h" 201# include "state.h"
179#undef VAR 202#undef VAR
180 203
204 /* statistics */
205 int usecount; /* number of switches to this coro */
206
181 /* coro process data */ 207 /* coro process data */
182 int prio; 208 int prio;
209
210 /* linked list */
211 struct coro *next, *prev;
212 HV *hv; /* the perl hash associated with this coro, if any */
183}; 213};
184 214
185typedef struct coro *Coro__State; 215typedef struct coro *Coro__State;
186typedef struct coro *Coro__State_or_hashref; 216typedef struct coro *Coro__State_or_hashref;
187 217
218/** Coro ********************************************************************/
219
220#define PRIO_MAX 3
221#define PRIO_HIGH 1
222#define PRIO_NORMAL 0
223#define PRIO_LOW -1
224#define PRIO_IDLE -3
225#define PRIO_MIN -4
226
227/* for Coro.pm */
228static SV *coro_current;
229static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
230static int coro_nready;
231static struct coro *coro_first;
232
233/** lowlevel stuff **********************************************************/
234
188static AV * 235static AV *
189coro_clone_padlist (CV *cv) 236coro_clone_padlist (pTHX_ CV *cv)
190{ 237{
191 AV *padlist = CvPADLIST (cv); 238 AV *padlist = CvPADLIST (cv);
192 AV *newpadlist, *newpad; 239 AV *newpadlist, *newpad;
193 240
194 newpadlist = newAV (); 241 newpadlist = newAV ();
… …
206 253
207 return newpadlist; 254 return newpadlist;
208} 255}
209 256
210static void 257static void
211free_padlist (AV *padlist) 258free_padlist (pTHX_ AV *padlist)
212{ 259{
213 /* may be during global destruction */ 260 /* may be during global destruction */
214 if (SvREFCNT (padlist)) 261 if (SvREFCNT (padlist))
215 { 262 {
216 I32 i = AvFILLp (padlist); 263 I32 i = AvFILLp (padlist);
… …
237 AV *padlist; 284 AV *padlist;
238 AV *av = (AV *)mg->mg_obj; 285 AV *av = (AV *)mg->mg_obj;
239 286
240 /* casting is fun. */ 287 /* casting is fun. */
241 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 288 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
242 free_padlist (padlist); 289 free_padlist (aTHX_ padlist);
243 290
244 SvREFCNT_dec (av); 291 SvREFCNT_dec (av);
245 292
246 return 0; 293 return 0;
247} 294}
… …
255 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ 302 ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \
256 ? SvMAGIC (cv) \ 303 ? SvMAGIC (cv) \
257 : mg_find ((SV *)cv, PERL_MAGIC_coro) \ 304 : mg_find ((SV *)cv, PERL_MAGIC_coro) \
258 : 0 305 : 0
259 306
307static struct coro *
308SvSTATE_ (pTHX_ SV *coro)
309{
310 HV *stash;
311 MAGIC *mg;
312
313 if (SvROK (coro))
314 coro = SvRV (coro);
315
316 if (SvTYPE (coro) != SVt_PVHV)
317 croak ("Coro::State object required");
318
319 stash = SvSTASH (coro);
320 if (stash != coro_stash && stash != coro_state_stash)
321 {
322 /* very slow, but rare, check */
323 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
324 croak ("Coro::State object required");
325 }
326
327 mg = CORO_MAGIC (coro);
328 return (struct coro *)mg->mg_ptr;
329}
330
331#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
332
260/* the next two functions merely cache the padlists */ 333/* the next two functions merely cache the padlists */
261static void 334static void
262get_padlist (CV *cv) 335get_padlist (pTHX_ CV *cv)
263{ 336{
264 MAGIC *mg = CORO_MAGIC (cv); 337 MAGIC *mg = CORO_MAGIC (cv);
265 AV *av; 338 AV *av;
266 339
267 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) 340 if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)
268 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 341 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
269 else 342 else
270 { 343 {
271#if PREFER_PERL_FUNCTIONS 344#if CORO_PREFER_PERL_FUNCTIONS
272 /* this is probably cleaner, but also slower? */ 345 /* this is probably cleaner, but also slower? */
273 CV *cp = Perl_cv_clone (cv); 346 CV *cp = Perl_cv_clone (cv);
274 CvPADLIST (cv) = CvPADLIST (cp); 347 CvPADLIST (cv) = CvPADLIST (cp);
275 CvPADLIST (cp) = 0; 348 CvPADLIST (cp) = 0;
276 SvREFCNT_dec (cp); 349 SvREFCNT_dec (cp);
277#else 350#else
278 CvPADLIST (cv) = coro_clone_padlist (cv); 351 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv);
279#endif 352#endif
280 } 353 }
281} 354}
282 355
283static void 356static void
284put_padlist (CV *cv) 357put_padlist (pTHX_ CV *cv)
285{ 358{
286 MAGIC *mg = CORO_MAGIC (cv); 359 MAGIC *mg = CORO_MAGIC (cv);
287 AV *av; 360 AV *av;
288 361
289 if (!mg) 362 if (!mg)
… …
300 av_extend (av, AvMAX (av) + 1); 373 av_extend (av, AvMAX (av) + 1);
301 374
302 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 375 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
303} 376}
304 377
378/** load & save, init *******************************************************/
379
305#define SB do { 380#define SB do {
306#define SE } while (0) 381#define SE } while (0)
307 382
308#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE 383#define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE
309 384
310static void 385static void
311load_perl (Coro__State c) 386load_perl (pTHX_ Coro__State c)
312{ 387{
313#define VAR(name,type) PL_ ## name = c->name; 388#define VAR(name,type) PL_ ## name = c->name;
314# include "state.h" 389# include "state.h"
315#undef VAR 390#undef VAR
316 391
317 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); 392 if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
318 if (c->defsv) REPLACE_SV (DEFSV , c->defsv); 393 if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
319 if (c->errsv) REPLACE_SV (ERRSV , c->errsv); 394 if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
395 if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh);
396
320 if (c->irssv) 397 if (c->irssv)
321 { 398 {
322 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) 399 if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv))
400 {
323 SvREFCNT_dec (c->irssv); 401 SvREFCNT_dec (c->irssv);
402 c->irssv = 0;
403 }
324 else 404 else
325 { 405 {
326 REPLACE_SV (PL_rs, c->irssv); 406 REPLACE_SV (PL_rs, c->irssv);
327 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); 407 if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0);
328 sv_setsv (c->irssv_sv, PL_rs); 408 sv_setsv (c->irssv_sv, PL_rs);
… …
334 CV *cv; 414 CV *cv;
335 415
336 /* now do the ugly restore mess */ 416 /* now do the ugly restore mess */
337 while ((cv = (CV *)POPs)) 417 while ((cv = (CV *)POPs))
338 { 418 {
339 put_padlist (cv); /* mark this padlist as available */ 419 put_padlist (aTHX_ cv); /* mark this padlist as available */
340 CvDEPTH (cv) = PTR2IV (POPs); 420 CvDEPTH (cv) = PTR2IV (POPs);
341 CvPADLIST (cv) = (AV *)POPs; 421 CvPADLIST (cv) = (AV *)POPs;
342 } 422 }
343 423
344 PUTBACK; 424 PUTBACK;
345 } 425 }
346} 426}
347 427
348static void 428static void
349save_perl (Coro__State c) 429save_perl (pTHX_ Coro__State c)
350{ 430{
351 { 431 {
352 dSP; 432 dSP;
353 I32 cxix = cxstack_ix; 433 I32 cxix = cxstack_ix;
354 PERL_CONTEXT *ccstk = cxstack; 434 PERL_CONTEXT *ccstk = cxstack;
… …
357 /* 437 /*
358 * the worst thing you can imagine happens first - we have to save 438 * the worst thing you can imagine happens first - we have to save
359 * (and reinitialize) all cv's in the whole callchain :( 439 * (and reinitialize) all cv's in the whole callchain :(
360 */ 440 */
361 441
362 EXTEND (SP, 3 + 1);
363 PUSHs (Nullsv); 442 XPUSHs (Nullsv);
364 /* this loop was inspired by pp_caller */ 443 /* this loop was inspired by pp_caller */
365 for (;;) 444 for (;;)
366 { 445 {
367 while (cxix >= 0) 446 while (cxix >= 0)
368 { 447 {
369 PERL_CONTEXT *cx = &ccstk[cxix--]; 448 PERL_CONTEXT *cx = &ccstk[cxix--];
370 449
371 if (CxTYPE (cx) == CXt_SUB) 450 if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)
372 { 451 {
373 CV *cv = cx->blk_sub.cv; 452 CV *cv = cx->blk_sub.cv;
374 453
375 if (CvDEPTH (cv)) 454 if (CvDEPTH (cv))
376 { 455 {
… …
378 PUSHs ((SV *)CvPADLIST (cv)); 457 PUSHs ((SV *)CvPADLIST (cv));
379 PUSHs (INT2PTR (SV *, CvDEPTH (cv))); 458 PUSHs (INT2PTR (SV *, CvDEPTH (cv)));
380 PUSHs ((SV *)cv); 459 PUSHs ((SV *)cv);
381 460
382 CvDEPTH (cv) = 0; 461 CvDEPTH (cv) = 0;
383 get_padlist (cv); 462 get_padlist (aTHX_ cv);
384 } 463 }
385 } 464 }
386 } 465 }
387 466
388 if (top_si->si_type == PERLSI_MAIN) 467 if (top_si->si_type == PERLSI_MAIN)
389 break; 468 break;
390 469
391 top_si = top_si->si_prev; 470 top_si = top_si->si_prev;
392 ccstk = top_si->si_cxstack; 471 ccstk = top_si->si_cxstack;
393 cxix = top_si->si_cxix; 472 cxix = top_si->si_cxix;
394 } 473 }
395 474
396 PUTBACK; 475 PUTBACK;
397 } 476 }
398 477
399 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; 478 c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
400 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; 479 c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
401 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; 480 c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
481 c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0;
402 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; 482 c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0;
403 483
404#define VAR(name,type)c->name = PL_ ## name; 484#define VAR(name,type)c->name = PL_ ## name;
405# include "state.h" 485# include "state.h"
406#undef VAR 486#undef VAR
… …
410 * allocate various perl stacks. This is an exact copy 490 * allocate various perl stacks. This is an exact copy
411 * of perl.c:init_stacks, except that it uses less memory 491 * of perl.c:init_stacks, except that it uses less memory
412 * on the (sometimes correct) assumption that coroutines do 492 * on the (sometimes correct) assumption that coroutines do
413 * not usually need a lot of stackspace. 493 * not usually need a lot of stackspace.
414 */ 494 */
415#if PREFER_PERL_FUNCTIONS 495#if CORO_PREFER_PERL_FUNCTIONS
416# define coro_init_stacks init_stacks 496# define coro_init_stacks init_stacks
417#else 497#else
418static void 498static void
419coro_init_stacks () 499coro_init_stacks (pTHX)
420{ 500{
421 PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); 501 PL_curstackinfo = new_stackinfo(64, 6);
422 PL_curstackinfo->si_type = PERLSI_MAIN; 502 PL_curstackinfo->si_type = PERLSI_MAIN;
423 PL_curstack = PL_curstackinfo->si_stack; 503 PL_curstack = PL_curstackinfo->si_stack;
424 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 504 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
425 505
426 PL_stack_base = AvARRAY(PL_curstack); 506 PL_stack_base = AvARRAY(PL_curstack);
427 PL_stack_sp = PL_stack_base; 507 PL_stack_sp = PL_stack_base;
428 PL_stack_max = PL_stack_base + AvMAX(PL_curstack); 508 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
429 509
430 New(50,PL_tmps_stack,128,SV*); 510 New(50,PL_tmps_stack,64,SV*);
431 PL_tmps_floor = -1; 511 PL_tmps_floor = -1;
432 PL_tmps_ix = -1; 512 PL_tmps_ix = -1;
433 PL_tmps_max = 128; 513 PL_tmps_max = 64;
434 514
435 New(54,PL_markstack,32,I32); 515 New(54,PL_markstack,16,I32);
436 PL_markstack_ptr = PL_markstack; 516 PL_markstack_ptr = PL_markstack;
437 PL_markstack_max = PL_markstack + 32; 517 PL_markstack_max = PL_markstack + 16;
438 518
439#ifdef SET_MARK_OFFSET 519#ifdef SET_MARK_OFFSET
440 SET_MARK_OFFSET; 520 SET_MARK_OFFSET;
441#endif 521#endif
442 522
443 New(54,PL_scopestack,32,I32); 523 New(54,PL_scopestack,16,I32);
444 PL_scopestack_ix = 0; 524 PL_scopestack_ix = 0;
445 PL_scopestack_max = 32; 525 PL_scopestack_max = 16;
446 526
447 New(54,PL_savestack,64,ANY); 527 New(54,PL_savestack,64,ANY);
448 PL_savestack_ix = 0; 528 PL_savestack_ix = 0;
449 PL_savestack_max = 64; 529 PL_savestack_max = 64;
450 530
451#if !PERL_VERSION_ATLEAST (5,9,0) 531#if !PERL_VERSION_ATLEAST (5,9,0)
452 New(54,PL_retstack,16,OP*); 532 New(54,PL_retstack,4,OP*);
453 PL_retstack_ix = 0; 533 PL_retstack_ix = 0;
454 PL_retstack_max = 16; 534 PL_retstack_max = 4;
455#endif 535#endif
456} 536}
457#endif 537#endif
458 538
459/* 539/*
460 * destroy the stacks, the callchain etc... 540 * destroy the stacks, the callchain etc...
461 */ 541 */
462static void 542static void
463coro_destroy_stacks () 543coro_destroy_stacks (pTHX)
464{ 544{
465 if (!IN_DESTRUCT) 545 if (!IN_DESTRUCT)
466 { 546 {
467 /* restore all saved variables and stuff */ 547 /* restore all saved variables and stuff */
468 LEAVE_SCOPE (0); 548 LEAVE_SCOPE (0);
… …
470 550
471 /* free all temporaries */ 551 /* free all temporaries */
472 FREETMPS; 552 FREETMPS;
473 assert (PL_tmps_ix == -1); 553 assert (PL_tmps_ix == -1);
474 554
555 /* unwind all extra stacks */
475 POPSTACK_TO (PL_mainstack); 556 POPSTACK_TO (PL_mainstack);
557
558 /* unwind main stack */
559 dounwind (-1);
476 } 560 }
477 561
478 while (PL_curstackinfo->si_next) 562 while (PL_curstackinfo->si_next)
479 PL_curstackinfo = PL_curstackinfo->si_next; 563 PL_curstackinfo = PL_curstackinfo->si_next;
480 564
… …
497#if !PERL_VERSION_ATLEAST (5,9,0) 581#if !PERL_VERSION_ATLEAST (5,9,0)
498 Safefree (PL_retstack); 582 Safefree (PL_retstack);
499#endif 583#endif
500} 584}
501 585
586static size_t
587coro_rss (pTHX_ struct coro *coro)
588{
589 size_t rss = sizeof (coro);
590
591 if (coro->mainstack)
592 {
593 if (coro->flags & CF_RUNNING)
594 {
595 #define VAR(name,type)coro->name = PL_ ## name;
596 # include "state.h"
597 #undef VAR
598 }
599
600 rss += sizeof (coro->curstackinfo);
601 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *);
602 rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT);
603 rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *);
604 rss += coro->tmps_max * sizeof (SV *);
605 rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32);
606 rss += coro->scopestack_max * sizeof (I32);
607 rss += coro->savestack_max * sizeof (ANY);
608
609#if !PERL_VERSION_ATLEAST (5,9,0)
610 rss += coro->retstack_max * sizeof (OP *);
611#endif
612 }
613
614 return rss;
615}
616
617/** coroutine stack handling ************************************************/
618
502static void 619static void
503setup_coro (struct coro *coro) 620setup_coro (pTHX_ struct coro *coro)
504{ 621{
505 /* 622 /*
506 * emulate part of the perl startup here. 623 * emulate part of the perl startup here.
507 */ 624 */
508
509 coro_init_stacks (); 625 coro_init_stacks (aTHX);
510 626
627 PL_runops = RUNOPS_DEFAULT;
511 PL_curcop = &PL_compiling; 628 PL_curcop = &PL_compiling;
512 PL_in_eval = EVAL_NULL; 629 PL_in_eval = EVAL_NULL;
630 PL_comppad = 0;
513 PL_curpm = 0; 631 PL_curpm = 0;
514 PL_localizing = 0; 632 PL_localizing = 0;
515 PL_dirty = 0; 633 PL_dirty = 0;
516 PL_restartop = 0; 634 PL_restartop = 0;
517 635
… …
525 Zero (&myop, 1, LOGOP); 643 Zero (&myop, 1, LOGOP);
526 myop.op_next = Nullop; 644 myop.op_next = Nullop;
527 myop.op_flags = OPf_WANT_VOID; 645 myop.op_flags = OPf_WANT_VOID;
528 646
529 PUSHMARK (SP); 647 PUSHMARK (SP);
530 XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); 648 XPUSHs (av_shift (GvAV (PL_defgv)));
531 PUTBACK; 649 PUTBACK;
532 PL_op = (OP *)&myop; 650 PL_op = (OP *)&myop;
533 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 651 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
534 SPAGAIN; 652 SPAGAIN;
535 } 653 }
536 654
537 ENTER; /* necessary e.g. for dounwind */ 655 ENTER; /* necessary e.g. for dounwind */
538} 656}
539 657
540static void 658static void
541free_coro_mortal () 659free_coro_mortal (pTHX)
542{ 660{
543 if (coro_mortal) 661 if (coro_mortal)
544 { 662 {
545 SvREFCNT_dec (coro_mortal); 663 SvREFCNT_dec (coro_mortal);
546 coro_mortal = 0; 664 coro_mortal = 0;
547 } 665 }
548} 666}
549 667
668static int
669runops_trace (pTHX)
670{
671 COP *oldcop = 0;
672 int oldcxix = -2;
673 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */
674 coro_cctx *cctx = coro->cctx;
675
676 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
677 {
678 PERL_ASYNC_CHECK ();
679
680 if (cctx->flags & CC_TRACE_ALL)
681 {
682 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB)
683 {
684 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
685 SV **bot, **top;
686 AV *av = newAV (); /* return values */
687 SV **cb;
688 dSP;
689
690 GV *gv = CvGV (cx->blk_sub.cv);
691 SV *fullname = sv_2mortal (newSV (0));
692 if (isGV (gv))
693 gv_efullname3 (fullname, gv, 0);
694
695 bot = PL_stack_base + cx->blk_oldsp + 1;
696 top = cx->blk_gimme == G_ARRAY ? SP + 1
697 : cx->blk_gimme == G_SCALAR ? bot + 1
698 : bot;
699
700 while (bot < top)
701 av_push (av, SvREFCNT_inc (*bot++));
702
703 PL_runops = RUNOPS_DEFAULT;
704 ENTER;
705 SAVETMPS;
706 EXTEND (SP, 3);
707 PUSHMARK (SP);
708 PUSHs (&PL_sv_no);
709 PUSHs (fullname);
710 PUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
711 PUTBACK;
712 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
713 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
714 SPAGAIN;
715 FREETMPS;
716 LEAVE;
717 PL_runops = runops_trace;
718 }
719
720 if (oldcop != PL_curcop)
721 {
722 oldcop = PL_curcop;
723
724 if (PL_curcop != &PL_compiling)
725 {
726 SV **cb;
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 runops_proc_t old_runops = PL_runops;
735 dSP;
736 GV *gv = CvGV (cx->blk_sub.cv);
737 SV *fullname = sv_2mortal (newSV (0));
738
739 if (isGV (gv))
740 gv_efullname3 (fullname, gv, 0);
741
742 PL_runops = RUNOPS_DEFAULT;
743 ENTER;
744 SAVETMPS;
745 EXTEND (SP, 3);
746 PUSHMARK (SP);
747 PUSHs (&PL_sv_yes);
748 PUSHs (fullname);
749 PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
750 PUTBACK;
751 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
752 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
753 SPAGAIN;
754 FREETMPS;
755 LEAVE;
756 PL_runops = runops_trace;
757 }
758
759 oldcxix = cxstack_ix;
760 }
761
762 if (cctx->flags & CC_TRACE_LINE)
763 {
764 dSP;
765
766 PL_runops = RUNOPS_DEFAULT;
767 ENTER;
768 SAVETMPS;
769 EXTEND (SP, 3);
770 PL_runops = RUNOPS_DEFAULT;
771 PUSHMARK (SP);
772 PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0)));
773 PUSHs (sv_2mortal (newSViv (CopLINE (oldcop))));
774 PUTBACK;
775 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0);
776 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
777 SPAGAIN;
778 FREETMPS;
779 LEAVE;
780 PL_runops = runops_trace;
781 }
782 }
783 }
784 }
785 }
786
787 TAINT_NOT;
788 return 0;
789}
790
550/* inject a fake call to Coro::State::_cctx_init into the execution */ 791/* inject a fake call to Coro::State::_cctx_init into the execution */
792/* _cctx_init should be careful, as it could be called at almost any time */
793/* during execution of a perl program */
551static void NOINLINE 794static void NOINLINE
552prepare_cctx (coro_cctx *cctx) 795prepare_cctx (pTHX_ coro_cctx *cctx)
553{ 796{
554 dSP; 797 dSP;
555 LOGOP myop; 798 LOGOP myop;
799
800 PL_top_env = &PL_start_env;
801
802 if (cctx->flags & CC_TRACE)
803 PL_runops = runops_trace;
556 804
557 Zero (&myop, 1, LOGOP); 805 Zero (&myop, 1, LOGOP);
558 myop.op_next = PL_op; 806 myop.op_next = PL_op;
559 myop.op_flags = OPf_WANT_VOID | OPf_STACKED; 807 myop.op_flags = OPf_WANT_VOID | OPf_STACKED;
560 808
… …
566 PL_op = (OP *)&myop; 814 PL_op = (OP *)&myop;
567 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 815 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
568 SPAGAIN; 816 SPAGAIN;
569} 817}
570 818
819/*
820 * this is a _very_ stripped down perl interpreter ;)
821 */
571static void 822static void
572coro_run (void *arg) 823coro_run (void *arg)
573{ 824{
825 dTHX;
826
574 /* coro_run is the alternative tail of transfer(), so unlock here. */ 827 /* coro_run is the alternative tail of transfer(), so unlock here. */
575 UNLOCK; 828 UNLOCK;
576 829
577 /* 830 /* we now skip the entersub that lead to transfer() */
578 * this is a _very_ stripped down perl interpreter ;) 831 PL_op = PL_op->op_next;
579 */
580 PL_top_env = &PL_start_env;
581 832
582 /* inject call to cctx_init */ 833 /* inject a fake subroutine call to cctx_init */
583 prepare_cctx ((coro_cctx *)arg); 834 prepare_cctx (aTHX_ (coro_cctx *)arg);
584 835
585 /* somebody will hit me for both perl_run and PL_restartop */ 836 /* somebody or something will hit me for both perl_run and PL_restartop */
586 PL_restartop = PL_op; 837 PL_restartop = PL_op;
587 perl_run (PL_curinterp); 838 perl_run (PL_curinterp);
588 839
589 fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); 840 /*
590 abort (); 841 * If perl-run returns we assume exit() was being called or the coro
842 * fell off the end, which seems to be the only valid (non-bug)
843 * reason for perl_run to return. We try to exit by jumping to the
844 * bootstrap-time "top" top_env, as we cannot restore the "main"
845 * coroutine as Coro has no such concept
846 */
847 PL_top_env = main_top_env;
848 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
591} 849}
592 850
593static coro_cctx * 851static coro_cctx *
594cctx_new () 852cctx_new ()
595{ 853{
596 coro_cctx *cctx; 854 coro_cctx *cctx;
855 void *stack_start;
856 size_t stack_size;
597 857
598 ++cctx_count; 858 ++cctx_count;
599 859
600 Newz (0, cctx, 1, coro_cctx); 860 Newz (0, cctx, 1, coro_cctx);
601 861
602#if HAVE_MMAP 862#if HAVE_MMAP
603 863
604 cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; 864 cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE;
605 /* mmap supposedly does allocate-on-write for us */ 865 /* mmap supposedly does allocate-on-write for us */
606 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); 866 cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0);
607 867
608 if (cctx->sptr == (void *)-1) 868 if (cctx->sptr != (void *)-1)
609 {
610 perror ("FATAL: unable to mmap stack for coroutine");
611 _exit (EXIT_FAILURE);
612 } 869 {
613
614# if STACKGUARD 870# if CORO_STACKGUARD
615 mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); 871 mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE);
616# endif 872# endif
873 stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr;
874 stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE;
875 cctx->flags |= CC_MAPPED;
876 }
877 else
878#endif
879 {
880 cctx->ssize = coro_stacksize * (long)sizeof (long);
881 New (0, cctx->sptr, coro_stacksize, long);
617 882
618#else
619
620 cctx->ssize = STACKSIZE * (long)sizeof (long);
621 New (0, cctx->sptr, STACKSIZE, long);
622
623 if (!cctx->sptr) 883 if (!cctx->sptr)
624 { 884 {
625 perror ("FATAL: unable to malloc stack for coroutine"); 885 perror ("FATAL: unable to allocate stack for coroutine");
626 _exit (EXIT_FAILURE); 886 _exit (EXIT_FAILURE);
627 } 887 }
628 888
629#endif 889 stack_start = cctx->sptr;
890 stack_size = cctx->ssize;
891 }
630 892
631#if USE_VALGRIND 893 REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size);
632 cctx->valgrind_id = VALGRIND_STACK_REGISTER (
633 STACKGUARD * PAGESIZE + (char *)cctx->sptr,
634 cctx->ssize + (char *)cctx->sptr
635 );
636#endif
637
638 coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); 894 coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size);
639 895
640 return cctx; 896 return cctx;
641} 897}
642 898
643static void 899static void
… …
646 if (!cctx) 902 if (!cctx)
647 return; 903 return;
648 904
649 --cctx_count; 905 --cctx_count;
650 906
651#if USE_VALGRIND 907#if CORO_USE_VALGRIND
652 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); 908 VALGRIND_STACK_DEREGISTER (cctx->valgrind_id);
653#endif 909#endif
654 910
655#if HAVE_MMAP 911#if HAVE_MMAP
912 if (cctx->flags & CC_MAPPED)
656 munmap (cctx->sptr, cctx->ssize); 913 munmap (cctx->sptr, cctx->ssize);
657#else 914 else
915#endif
658 Safefree (cctx->sptr); 916 Safefree (cctx->sptr);
659#endif
660 917
661 Safefree (cctx); 918 Safefree (cctx);
662} 919}
663 920
664static coro_cctx * 921static coro_cctx *
665cctx_get () 922cctx_get (pTHX)
666{ 923{
667 coro_cctx *cctx;
668
669 if (cctx_first) 924 while (cctx_first)
670 { 925 {
671 cctx = cctx_first; 926 coro_cctx *cctx = cctx_first;
672 cctx_first = cctx->next; 927 cctx_first = cctx->next;
673 --cctx_idle; 928 --cctx_idle;
674 } 929
675 else 930 if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE))
676 { 931 return cctx;
677 cctx = cctx_new (); 932
678 PL_op = PL_op->op_next; 933 cctx_destroy (cctx);
679 } 934 }
680 935
681 return cctx; 936 return cctx_new ();
682} 937}
683 938
684static void 939static void
685cctx_put (coro_cctx *cctx) 940cctx_put (coro_cctx *cctx)
686{ 941{
… …
689 { 944 {
690 coro_cctx *first = cctx_first; 945 coro_cctx *first = cctx_first;
691 cctx_first = first->next; 946 cctx_first = first->next;
692 --cctx_idle; 947 --cctx_idle;
693 948
694 assert (!first->inuse);
695 cctx_destroy (first); 949 cctx_destroy (first);
696 } 950 }
697 951
698 ++cctx_idle; 952 ++cctx_idle;
699 cctx->next = cctx_first; 953 cctx->next = cctx_first;
700 cctx_first = cctx; 954 cctx_first = cctx;
701} 955}
702 956
703/* never call directly, always through the coro_state_transfer global variable */ 957/** coroutine switching *****************************************************/
958
704static void NOINLINE 959static void NOINLINE
960transfer_check (pTHX_ struct coro *prev, struct coro *next)
961{
962 if (prev != next)
963 {
964 if (!(prev->flags & (CF_RUNNING | CF_NEW)))
965 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states");
966
967 if (next->flags & CF_RUNNING)
968 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
969
970 if (next->flags & CF_DESTROYED)
971 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states");
972
973 if (PL_lex_state != LEX_NOTPARSING)
974 croak ("Coro::State::transfer called while parsing, but this is not supported");
975 }
976}
977
978/* always use the TRANSFER macro */
979static void NOINLINE
705transfer (struct coro *prev, struct coro *next) 980transfer (pTHX_ struct coro *prev, struct coro *next)
706{ 981{
707 dSTACKLEVEL; 982 dSTACKLEVEL;
708 983
709 /* sometimes transfer is only called to set idle_sp */ 984 /* sometimes transfer is only called to set idle_sp */
710 if (!next) 985 if (!next)
711 { 986 {
712 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 987 ((coro_cctx *)prev)->idle_sp = STACKLEVEL;
713 assert (((coro_cctx *)prev)->top_env = PL_top_env); /* just for the side effetc when assert is enabled */ 988 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
714 } 989 }
715 else if (prev != next) 990 else if (prev != next)
716 { 991 {
717 coro_cctx *prev__cctx; 992 coro_cctx *prev__cctx;
718 993
719 if (prev->flags & CF_NEW) 994 if (prev->flags & CF_NEW)
720 { 995 {
721 /* create a new empty context */ 996 /* create a new empty context */
722 Newz (0, prev->cctx, 1, coro_cctx); 997 Newz (0, prev->cctx, 1, coro_cctx);
723 prev->cctx->inuse = 1;
724 prev->flags &= ~CF_NEW; 998 prev->flags &= ~CF_NEW;
725 prev->flags |= CF_RUNNING; 999 prev->flags |= CF_RUNNING;
726 } 1000 }
727
728 /*TODO: must not croak here */
729 if (!prev->flags & CF_RUNNING)
730 croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states");
731
732 if (next->flags & CF_RUNNING)
733 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states");
734 1001
735 prev->flags &= ~CF_RUNNING; 1002 prev->flags &= ~CF_RUNNING;
736 next->flags |= CF_RUNNING; 1003 next->flags |= CF_RUNNING;
737 1004
738 LOCK; 1005 LOCK;
… …
740 if (next->flags & CF_NEW) 1007 if (next->flags & CF_NEW)
741 { 1008 {
742 /* need to start coroutine */ 1009 /* need to start coroutine */
743 next->flags &= ~CF_NEW; 1010 next->flags &= ~CF_NEW;
744 /* first get rid of the old state */ 1011 /* first get rid of the old state */
745 save_perl (prev); 1012 save_perl (aTHX_ prev);
746 /* setup coroutine call */ 1013 /* setup coroutine call */
747 setup_coro (next); 1014 setup_coro (aTHX_ next);
748 /* need a new stack */
749 assert (!next->cctx);
750 } 1015 }
751 else 1016 else
752 { 1017 {
753 /* coroutine already started */ 1018 /* coroutine already started */
754 save_perl (prev); 1019 save_perl (aTHX_ prev);
755 load_perl (next); 1020 load_perl (aTHX_ next);
756 } 1021 }
757 1022
758 prev__cctx = prev->cctx; 1023 prev__cctx = prev->cctx;
759 1024
760 /* possibly "free" the cctx */ 1025 /* possibly "free" the cctx */
761 if (prev__cctx->idle_sp == STACKLEVEL) 1026 if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))
762 { 1027 {
763 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ 1028 /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */
764 assert (PL_top_env == prev__cctx->top_env); 1029 assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te));
765 1030
766 prev->cctx = 0; 1031 prev->cctx = 0;
767 1032
768 cctx_put (prev__cctx); 1033 cctx_put (prev__cctx);
769 prev__cctx->inuse = 0;
770 } 1034 }
771 1035
1036 ++next->usecount;
1037
772 if (!next->cctx) 1038 if (!next->cctx)
773 {
774 next->cctx = cctx_get (); 1039 next->cctx = cctx_get (aTHX);
775 assert (!next->cctx->inuse);
776 next->cctx->inuse = 1;
777 }
778 1040
779 if (prev__cctx != next->cctx) 1041 if (prev__cctx != next->cctx)
780 { 1042 {
781 prev__cctx->top_env = PL_top_env; 1043 prev__cctx->top_env = PL_top_env;
782 PL_top_env = next->cctx->top_env; 1044 PL_top_env = next->cctx->top_env;
783 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1045 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
784 } 1046 }
785 1047
786 free_coro_mortal (); 1048 free_coro_mortal (aTHX);
787
788 UNLOCK; 1049 UNLOCK;
789 } 1050 }
790} 1051}
791 1052
792struct transfer_args 1053struct transfer_args
793{ 1054{
794 struct coro *prev, *next; 1055 struct coro *prev, *next;
795}; 1056};
796 1057
797#define TRANSFER(ta) transfer ((ta).prev, (ta).next) 1058#define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next)
1059#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
798 1060
1061/** high level stuff ********************************************************/
1062
799static void 1063static int
800coro_state_destroy (struct coro *coro) 1064coro_state_destroy (pTHX_ struct coro *coro)
801{ 1065{
802 if (coro->refcnt--) 1066 if (coro->flags & CF_DESTROYED)
803 return; 1067 return 0;
1068
1069 coro->flags |= CF_DESTROYED;
1070
1071 if (coro->flags & CF_READY)
1072 {
1073 /* reduce nready, as destroying a ready coro effectively unreadies it */
1074 /* alternative: look through all ready queues and remove the coro */
1075 LOCK;
1076 --coro_nready;
1077 UNLOCK;
1078 }
1079 else
1080 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
804 1081
805 if (coro->mainstack && coro->mainstack != main_mainstack) 1082 if (coro->mainstack && coro->mainstack != main_mainstack)
806 { 1083 {
807 struct coro temp; 1084 struct coro temp;
1085
1086 assert (!(coro->flags & CF_RUNNING));
1087
808 Zero (&temp, 1, struct coro); 1088 Zero (&temp, 1, struct coro);
809 temp.save = CORO_SAVE_ALL; 1089 temp.save = CORO_SAVE_ALL;
810 1090
811 if (coro->flags & CF_RUNNING) 1091 if (coro->flags & CF_RUNNING)
812 croak ("FATAL: tried to destroy currently running coroutine"); 1092 croak ("FATAL: tried to destroy currently running coroutine");
813 1093
814 save_perl (&temp); 1094 save_perl (aTHX_ &temp);
815 load_perl (coro); 1095 load_perl (aTHX_ coro);
816 1096
817 coro_destroy_stacks (); 1097 coro_destroy_stacks (aTHX);
818 1098
819 load_perl (&temp); /* this will get rid of defsv etc.. */ 1099 load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */
820 1100
821 coro->mainstack = 0; 1101 coro->mainstack = 0;
822 } 1102 }
823 1103
824 cctx_destroy (coro->cctx); 1104 cctx_destroy (coro->cctx);
825 SvREFCNT_dec (coro->args); 1105 SvREFCNT_dec (coro->args);
826 Safefree (coro); 1106
1107 if (coro->next) coro->next->prev = coro->prev;
1108 if (coro->prev) coro->prev->next = coro->next;
1109 if (coro == coro_first) coro_first = coro->next;
1110
1111 return 1;
827} 1112}
828 1113
829static int 1114static int
830coro_state_clear (pTHX_ SV *sv, MAGIC *mg) 1115coro_state_free (pTHX_ SV *sv, MAGIC *mg)
831{ 1116{
832 struct coro *coro = (struct coro *)mg->mg_ptr; 1117 struct coro *coro = (struct coro *)mg->mg_ptr;
833 mg->mg_ptr = 0; 1118 mg->mg_ptr = 0;
834 1119
1120 coro->hv = 0;
1121
1122 if (--coro->refcnt < 0)
1123 {
835 coro_state_destroy (coro); 1124 coro_state_destroy (aTHX_ coro);
1125 Safefree (coro);
1126 }
836 1127
837 return 0; 1128 return 0;
838} 1129}
839 1130
840static int 1131static int
… …
847 return 0; 1138 return 0;
848} 1139}
849 1140
850static MGVTBL coro_state_vtbl = { 1141static MGVTBL coro_state_vtbl = {
851 0, 0, 0, 0, 1142 0, 0, 0, 0,
852 coro_state_clear, 1143 coro_state_free,
853 0, 1144 0,
854#ifdef MGf_DUP 1145#ifdef MGf_DUP
855 coro_state_dup, 1146 coro_state_dup,
856#else 1147#else
857# define MGf_DUP 0 1148# define MGf_DUP 0
858#endif 1149#endif
859}; 1150};
860 1151
861static struct coro *
862SvSTATE (SV *coro)
863{
864 HV *stash;
865 MAGIC *mg;
866
867 if (SvROK (coro))
868 coro = SvRV (coro);
869
870 stash = SvSTASH (coro);
871 if (stash != coro_stash && stash != coro_state_stash)
872 {
873 /* very slow, but rare, check */
874 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
875 croak ("Coro::State object required");
876 }
877
878 mg = SvMAGIC (coro);
879 assert (mg->mg_type == PERL_MAGIC_ext);
880 return (struct coro *)mg->mg_ptr;
881}
882
883static void 1152static void
884prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) 1153prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv)
885{ 1154{
886 ta->prev = SvSTATE (prev_sv); 1155 ta->prev = SvSTATE (prev_sv);
887 ta->next = SvSTATE (next_sv); 1156 ta->next = SvSTATE (next_sv);
1157 TRANSFER_CHECK (*ta);
888} 1158}
889 1159
890static void 1160static void
891api_transfer (SV *prev_sv, SV *next_sv) 1161api_transfer (SV *prev_sv, SV *next_sv)
892{ 1162{
1163 dTHX;
893 struct transfer_args ta; 1164 struct transfer_args ta;
894 1165
895 prepare_transfer (&ta, prev_sv, next_sv); 1166 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
896 TRANSFER (ta); 1167 TRANSFER (ta);
897} 1168}
898 1169
899static int 1170static int
900api_save (SV *coro_sv, int new_save) 1171api_save (SV *coro_sv, int new_save)
901{ 1172{
1173 dTHX;
902 struct coro *coro = SvSTATE (coro_sv); 1174 struct coro *coro = SvSTATE (coro_sv);
903 int old_save = coro->save; 1175 int old_save = coro->save;
904 1176
905 if (new_save >= 0) 1177 if (new_save >= 0)
906 coro->save = new_save; 1178 coro->save = new_save;
… …
908 return old_save; 1180 return old_save;
909} 1181}
910 1182
911/** Coro ********************************************************************/ 1183/** Coro ********************************************************************/
912 1184
913#define PRIO_MAX 3
914#define PRIO_HIGH 1
915#define PRIO_NORMAL 0
916#define PRIO_LOW -1
917#define PRIO_IDLE -3
918#define PRIO_MIN -4
919
920/* for Coro.pm */
921static SV *coro_current;
922static AV *coro_ready [PRIO_MAX-PRIO_MIN+1];
923static int coro_nready;
924
925static void 1185static void
926coro_enq (SV *coro_sv) 1186coro_enq (pTHX_ SV *coro_sv)
927{ 1187{
928 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1188 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv);
929 coro_nready++;
930} 1189}
931 1190
932static SV * 1191static SV *
933coro_deq (int min_prio) 1192coro_deq (pTHX_ int min_prio)
934{ 1193{
935 int prio = PRIO_MAX - PRIO_MIN; 1194 int prio = PRIO_MAX - PRIO_MIN;
936 1195
937 min_prio -= PRIO_MIN; 1196 min_prio -= PRIO_MIN;
938 if (min_prio < 0) 1197 if (min_prio < 0)
939 min_prio = 0; 1198 min_prio = 0;
940 1199
941 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) 1200 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
942 if (AvFILLp (coro_ready [prio]) >= 0) 1201 if (AvFILLp (coro_ready [prio]) >= 0)
943 {
944 coro_nready--;
945 return av_shift (coro_ready [prio]); 1202 return av_shift (coro_ready [prio]);
946 }
947 1203
948 return 0; 1204 return 0;
949} 1205}
950 1206
951static int 1207static int
952api_ready (SV *coro_sv) 1208api_ready (SV *coro_sv)
953{ 1209{
1210 dTHX;
954 struct coro *coro; 1211 struct coro *coro;
955 1212
956 if (SvROK (coro_sv)) 1213 if (SvROK (coro_sv))
957 coro_sv = SvRV (coro_sv); 1214 coro_sv = SvRV (coro_sv);
958 1215
… …
962 return 0; 1219 return 0;
963 1220
964 coro->flags |= CF_READY; 1221 coro->flags |= CF_READY;
965 1222
966 LOCK; 1223 LOCK;
967 coro_enq (SvREFCNT_inc (coro_sv)); 1224 coro_enq (aTHX_ SvREFCNT_inc (coro_sv));
1225 ++coro_nready;
968 UNLOCK; 1226 UNLOCK;
969 1227
970 return 1; 1228 return 1;
971} 1229}
972 1230
973static int 1231static int
974api_is_ready (SV *coro_sv) 1232api_is_ready (SV *coro_sv)
975{ 1233{
1234 dTHX;
976 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1235 return !!(SvSTATE (coro_sv)->flags & CF_READY);
977} 1236}
978 1237
979static void 1238static void
980prepare_schedule (struct transfer_args *ta) 1239prepare_schedule (pTHX_ struct transfer_args *ta)
981{ 1240{
982 SV *prev, *next; 1241 SV *prev_sv, *next_sv;
983 1242
984 for (;;) 1243 for (;;)
985 { 1244 {
986 LOCK; 1245 LOCK;
987 next = coro_deq (PRIO_MIN); 1246 next_sv = coro_deq (aTHX_ PRIO_MIN);
1247
1248 /* nothing to schedule: call the idle handler */
1249 if (!next_sv)
1250 {
1251 dSP;
1252 UNLOCK;
1253
1254 ENTER;
1255 SAVETMPS;
1256
1257 PUSHMARK (SP);
1258 PUTBACK;
1259 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1260
1261 FREETMPS;
1262 LEAVE;
1263 continue;
1264 }
1265
1266 ta->next = SvSTATE (next_sv);
1267
1268 /* cannot transfer to destroyed coros, skip and look for next */
1269 if (ta->next->flags & CF_DESTROYED)
1270 {
1271 UNLOCK;
1272 SvREFCNT_dec (next_sv);
1273 /* coro_nready is already taken care of by destroy */
1274 continue;
1275 }
1276
1277 --coro_nready;
988 UNLOCK; 1278 UNLOCK;
989
990 if (next)
991 break; 1279 break;
992
993 {
994 dSP;
995
996 ENTER;
997 SAVETMPS;
998
999 PUSHMARK (SP);
1000 PUTBACK;
1001 call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD);
1002
1003 FREETMPS;
1004 LEAVE;
1005 } 1280 }
1006 }
1007
1008 prev = SvRV (coro_current);
1009 SvRV_set (coro_current, next);
1010 1281
1011 /* free this only after the transfer */ 1282 /* free this only after the transfer */
1012 LOCK; 1283 prev_sv = SvRV (coro_current);
1013 free_coro_mortal ();
1014 UNLOCK;
1015 coro_mortal = prev;
1016
1017 assert (!SvROK(prev));//D
1018 assert (!SvROK(next));//D
1019
1020 ta->prev = SvSTATE (prev); 1284 ta->prev = SvSTATE (prev_sv);
1021 ta->next = SvSTATE (next); 1285 TRANSFER_CHECK (*ta);
1022
1023 assert (ta->next->flags & CF_READY); 1286 assert (ta->next->flags & CF_READY);
1024 ta->next->flags &= ~CF_READY; 1287 ta->next->flags &= ~CF_READY;
1288 SvRV_set (coro_current, next_sv);
1289
1290 LOCK;
1291 free_coro_mortal (aTHX);
1292 coro_mortal = prev_sv;
1293 UNLOCK;
1025} 1294}
1026 1295
1027static void 1296static void
1028prepare_cede (struct transfer_args *ta) 1297prepare_cede (pTHX_ struct transfer_args *ta)
1029{ 1298{
1030 api_ready (coro_current); 1299 api_ready (coro_current);
1031 prepare_schedule (ta); 1300 prepare_schedule (aTHX_ ta);
1032} 1301}
1033 1302
1034static int 1303static int
1035prepare_cede_notself (struct transfer_args *ta) 1304prepare_cede_notself (pTHX_ struct transfer_args *ta)
1036{ 1305{
1037 if (coro_nready) 1306 if (coro_nready)
1038 { 1307 {
1039 SV *prev = SvRV (coro_current); 1308 SV *prev = SvRV (coro_current);
1040 prepare_schedule (ta); 1309 prepare_schedule (aTHX_ ta);
1041 api_ready (prev); 1310 api_ready (prev);
1042 return 1; 1311 return 1;
1043 } 1312 }
1044 else 1313 else
1045 return 0; 1314 return 0;
1046} 1315}
1047 1316
1048static void 1317static void
1049api_schedule (void) 1318api_schedule (void)
1050{ 1319{
1320 dTHX;
1051 struct transfer_args ta; 1321 struct transfer_args ta;
1052 1322
1053 prepare_schedule (&ta); 1323 prepare_schedule (aTHX_ &ta);
1054 TRANSFER (ta); 1324 TRANSFER (ta);
1055} 1325}
1056 1326
1057static int 1327static int
1058api_cede (void) 1328api_cede (void)
1059{ 1329{
1330 dTHX;
1060 struct transfer_args ta; 1331 struct transfer_args ta;
1061 1332
1062 prepare_cede (&ta); 1333 prepare_cede (aTHX_ &ta);
1063 1334
1064 if (ta.prev != ta.next) 1335 if (ta.prev != ta.next)
1065 { 1336 {
1066 TRANSFER (ta); 1337 TRANSFER (ta);
1067 return 1; 1338 return 1;
… …
1071} 1342}
1072 1343
1073static int 1344static int
1074api_cede_notself (void) 1345api_cede_notself (void)
1075{ 1346{
1347 dTHX;
1076 struct transfer_args ta; 1348 struct transfer_args ta;
1077 1349
1078 if (prepare_cede_notself (&ta)) 1350 if (prepare_cede_notself (aTHX_ &ta))
1079 { 1351 {
1080 TRANSFER (ta); 1352 TRANSFER (ta);
1081 return 1; 1353 return 1;
1082 } 1354 }
1083 else 1355 else
1084 return 0; 1356 return 0;
1085} 1357}
1086 1358
1359static void
1360api_trace (SV *coro_sv, int flags)
1361{
1362 dTHX;
1363 struct coro *coro = SvSTATE (coro_sv);
1364
1365 if (flags & CC_TRACE)
1366 {
1367 if (!coro->cctx)
1368 coro->cctx = cctx_new ();
1369 else if (!(coro->cctx->flags & CC_TRACE))
1370 croak ("cannot enable tracing on coroutine with custom stack");
1371
1372 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1373 }
1374 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1375 {
1376 coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL);
1377
1378 if (coro->flags & CF_RUNNING)
1379 PL_runops = RUNOPS_DEFAULT;
1380 else
1381 coro->runops = RUNOPS_DEFAULT;
1382 }
1383}
1384
1087MODULE = Coro::State PACKAGE = Coro::State 1385MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
1088 1386
1089PROTOTYPES: DISABLE 1387PROTOTYPES: DISABLE
1090 1388
1091BOOT: 1389BOOT:
1092{ 1390{
… …
1094 MUTEX_INIT (&coro_mutex); 1392 MUTEX_INIT (&coro_mutex);
1095#endif 1393#endif
1096 BOOT_PAGESIZE; 1394 BOOT_PAGESIZE;
1097 1395
1098 coro_state_stash = gv_stashpv ("Coro::State", TRUE); 1396 coro_state_stash = gv_stashpv ("Coro::State", TRUE);
1397
1398 newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE));
1399 newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB));
1400 newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE));
1401 newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL));
1099 1402
1100 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); 1403 newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV));
1101 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); 1404 newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV));
1102 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); 1405 newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV));
1103 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); 1406 newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV));
1407 newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH));
1408 newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF));
1104 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); 1409 newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL));
1105 1410
1106 main_mainstack = PL_mainstack; 1411 main_mainstack = PL_mainstack;
1412 main_top_env = PL_top_env;
1413
1414 while (main_top_env->je_prev)
1415 main_top_env = main_top_env->je_prev;
1107 1416
1108 coroapi.ver = CORO_API_VERSION; 1417 coroapi.ver = CORO_API_VERSION;
1109 coroapi.transfer = api_transfer; 1418 coroapi.transfer = api_transfer;
1110 1419
1111 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 1420 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL));
… …
1119 HV *hv; 1428 HV *hv;
1120 int i; 1429 int i;
1121 1430
1122 Newz (0, coro, 1, struct coro); 1431 Newz (0, coro, 1, struct coro);
1123 coro->args = newAV (); 1432 coro->args = newAV ();
1124 coro->save = CORO_SAVE_ALL; 1433 coro->save = CORO_SAVE_DEF;
1125 coro->flags = CF_NEW; 1434 coro->flags = CF_NEW;
1126 1435
1436 if (coro_first) coro_first->prev = coro;
1437 coro->next = coro_first;
1438 coro_first = coro;
1439
1127 hv = newHV (); 1440 coro->hv = hv = newHV ();
1128 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; 1441 sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP;
1129 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); 1442 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
1130 1443
1131 for (i = 1; i < items; i++) 1444 for (i = 1; i < items; i++)
1132 av_push (coro->args, newSVsv (ST (i))); 1445 av_push (coro->args, newSVsv (ST (i)));
… …
1136 1449
1137int 1450int
1138save (SV *coro, int new_save = -1) 1451save (SV *coro, int new_save = -1)
1139 CODE: 1452 CODE:
1140 RETVAL = api_save (coro, new_save); 1453 RETVAL = api_save (coro, new_save);
1454 OUTPUT:
1455 RETVAL
1456
1457int
1458save_also (SV *coro_sv, int save_also)
1459 CODE:
1460{
1461 struct coro *coro = SvSTATE (coro_sv);
1462 RETVAL = coro->save;
1463 coro->save |= save_also;
1464}
1141 OUTPUT: 1465 OUTPUT:
1142 RETVAL 1466 RETVAL
1143 1467
1144void 1468void
1145_set_stacklevel (...) 1469_set_stacklevel (...)
… …
1161 1485
1162 case 1: 1486 case 1:
1163 if (items != 2) 1487 if (items != 2)
1164 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); 1488 croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items);
1165 1489
1166 prepare_transfer (&ta, ST (0), ST (1)); 1490 prepare_transfer (aTHX_ &ta, ST (0), ST (1));
1167 break; 1491 break;
1168 1492
1169 case 2: 1493 case 2:
1170 prepare_schedule (&ta); 1494 prepare_schedule (aTHX_ &ta);
1171 break; 1495 break;
1172 1496
1173 case 3: 1497 case 3:
1174 prepare_cede (&ta); 1498 prepare_cede (aTHX_ &ta);
1175 break; 1499 break;
1176 1500
1177 case 4: 1501 case 4:
1178 if (!prepare_cede_notself (&ta)) 1502 if (!prepare_cede_notself (aTHX_ &ta))
1179 XSRETURN_EMPTY; 1503 XSRETURN_EMPTY;
1180 1504
1181 break; 1505 break;
1182 } 1506 }
1183 1507
1184 BARRIER; 1508 BARRIER;
1185 TRANSFER (ta); 1509 TRANSFER (ta);
1186}
1187 1510
1188void 1511 if (GIMME_V != G_VOID && ta.next != ta.prev)
1189_clone_state_from (SV *dst, SV *src) 1512 XSRETURN_YES;
1513}
1514
1515bool
1516_destroy (SV *coro_sv)
1190 CODE: 1517 CODE:
1191{ 1518 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
1192 struct coro *coro_src = SvSTATE (src); 1519 OUTPUT:
1193 1520 RETVAL
1194 sv_unmagic (SvRV (dst), PERL_MAGIC_ext);
1195
1196 ++coro_src->refcnt;
1197 sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP;
1198}
1199 1521
1200void 1522void
1201_exit (code) 1523_exit (code)
1202 int code 1524 int code
1203 PROTOTYPE: $ 1525 PROTOTYPE: $
1204 CODE: 1526 CODE:
1205 _exit (code); 1527 _exit (code);
1206 1528
1207int 1529int
1530cctx_stacksize (int new_stacksize = 0)
1531 CODE:
1532 RETVAL = coro_stacksize;
1533 if (new_stacksize)
1534 coro_stacksize = new_stacksize;
1535 OUTPUT:
1536 RETVAL
1537
1538int
1208cctx_count () 1539cctx_count ()
1209 CODE: 1540 CODE:
1210 RETVAL = cctx_count; 1541 RETVAL = cctx_count;
1211 OUTPUT: 1542 OUTPUT:
1212 RETVAL 1543 RETVAL
… …
1216 CODE: 1547 CODE:
1217 RETVAL = cctx_idle; 1548 RETVAL = cctx_idle;
1218 OUTPUT: 1549 OUTPUT:
1219 RETVAL 1550 RETVAL
1220 1551
1552void
1553list ()
1554 PPCODE:
1555{
1556 struct coro *coro;
1557 for (coro = coro_first; coro; coro = coro->next)
1558 if (coro->hv)
1559 XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv)));
1560}
1561
1562void
1563call (Coro::State coro, SV *coderef)
1564 ALIAS:
1565 eval = 1
1566 CODE:
1567{
1568 if (coro->mainstack)
1569 {
1570 struct coro temp;
1571 Zero (&temp, 1, struct coro);
1572 temp.save = CORO_SAVE_ALL;
1573
1574 if (!(coro->flags & CF_RUNNING))
1575 {
1576 save_perl (aTHX_ &temp);
1577 load_perl (aTHX_ coro);
1578 }
1579
1580 {
1581 dSP;
1582 ENTER;
1583 SAVETMPS;
1584 PUSHMARK (SP);
1585 PUTBACK;
1586 if (ix)
1587 eval_sv (coderef, 0);
1588 else
1589 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1590 SPAGAIN;
1591 FREETMPS;
1592 LEAVE;
1593 PUTBACK;
1594 }
1595
1596 if (!(coro->flags & CF_RUNNING))
1597 {
1598 save_perl (aTHX_ coro);
1599 load_perl (aTHX_ &temp);
1600 }
1601 }
1602}
1603
1604SV *
1605is_ready (Coro::State coro)
1606 PROTOTYPE: $
1607 ALIAS:
1608 is_ready = CF_READY
1609 is_running = CF_RUNNING
1610 is_new = CF_NEW
1611 is_destroyed = CF_DESTROYED
1612 CODE:
1613 RETVAL = boolSV (coro->flags & ix);
1614 OUTPUT:
1615 RETVAL
1616
1617void
1618api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
1619
1620SV *
1621has_stack (Coro::State coro)
1622 PROTOTYPE: $
1623 CODE:
1624 RETVAL = boolSV (!!coro->cctx);
1625 OUTPUT:
1626 RETVAL
1627
1628int
1629is_traced (Coro::State coro)
1630 PROTOTYPE: $
1631 CODE:
1632 RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL;
1633 OUTPUT:
1634 RETVAL
1635
1636IV
1637rss (Coro::State coro)
1638 PROTOTYPE: $
1639 ALIAS:
1640 usecount = 1
1641 CODE:
1642 switch (ix)
1643 {
1644 case 0: RETVAL = coro_rss (aTHX_ coro); break;
1645 case 1: RETVAL = coro->usecount; break;
1646 }
1647 OUTPUT:
1648 RETVAL
1649
1650
1221MODULE = Coro::State PACKAGE = Coro 1651MODULE = Coro::State PACKAGE = Coro
1222 1652
1223BOOT: 1653BOOT:
1224{ 1654{
1225 int i; 1655 int i;
1656
1657 sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE);
1658 sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE);
1659 av_async_pool = get_av ("Coro::async_pool", TRUE);
1660
1661 coro_current = get_sv ("Coro::current", FALSE);
1662 SvREADONLY_on (coro_current);
1226 1663
1227 coro_stash = gv_stashpv ("Coro", TRUE); 1664 coro_stash = gv_stashpv ("Coro", TRUE);
1228 1665
1229 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 1666 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX));
1230 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 1667 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
1231 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 1668 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
1232 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 1669 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW));
1233 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 1670 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
1234 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 1671 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN));
1235
1236 coro_current = get_sv ("Coro::current", FALSE);
1237 SvREADONLY_on (coro_current);
1238 1672
1239 for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) 1673 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
1240 coro_ready[i] = newAV (); 1674 coro_ready[i] = newAV ();
1241 1675
1242 { 1676 {
… …
1292 CODE: 1726 CODE:
1293 RETVAL = boolSV (api_ready (self)); 1727 RETVAL = boolSV (api_ready (self));
1294 OUTPUT: 1728 OUTPUT:
1295 RETVAL 1729 RETVAL
1296 1730
1297SV *
1298is_ready (SV *self)
1299 PROTOTYPE: $
1300 CODE:
1301 RETVAL = boolSV (api_is_ready (self));
1302 OUTPUT:
1303 RETVAL
1304
1305int 1731int
1306nready (...) 1732nready (...)
1307 PROTOTYPE: 1733 PROTOTYPE:
1308 CODE: 1734 CODE:
1309 RETVAL = coro_nready; 1735 RETVAL = coro_nready;
1310 OUTPUT: 1736 OUTPUT:
1311 RETVAL 1737 RETVAL
1312 1738
1739# for async_pool speedup
1740void
1741_pool_1 (SV *cb)
1742 CODE:
1743{
1744 int i, len;
1745 HV *hv = (HV *)SvRV (coro_current);
1746 AV *defav = GvAV (PL_defgv);
1747 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
1748 AV *invoke_av;
1749
1750 if (!invoke)
1751 croak ("\3terminate\2\n");
1752
1753 hv_store (hv, "desc", sizeof ("desc") - 1,
1754 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
1755
1756 invoke_av = (AV *)SvRV (invoke);
1757 len = av_len (invoke_av);
1758
1759 sv_setsv (cb, AvARRAY (invoke_av)[0]);
1760
1761 if (len > 0)
1762 {
1763 av_fill (defav, len - 1);
1764 for (i = 0; i < len; ++i)
1765 av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1]));
1766 }
1767
1768 SvREFCNT_dec (invoke);
1769}
1770
1771void
1772_pool_2 (SV *cb)
1773 CODE:
1774{
1775 struct coro *coro = SvSTATE (coro_current);
1776
1777 sv_setsv (cb, &PL_sv_undef);
1778
1779 if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss)
1780 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1781 croak ("\3terminate\2\n");
1782
1783 av_clear (GvAV (PL_defgv));
1784 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1,
1785 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
1786
1787 coro->save = CORO_SAVE_DEF;
1788 coro->prio = 0;
1789
1790 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
1791 api_trace (coro_current, 0);
1792
1793 av_push (av_async_pool, newSVsv (coro_current));
1794}
1795
1796
1313MODULE = Coro::State PACKAGE = Coro::AIO 1797MODULE = Coro::State PACKAGE = Coro::AIO
1314 1798
1315SV * 1799SV *
1316_get_state () 1800_get_state ()
1317 CODE: 1801 CODE:

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