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Comparing Coro/Coro/State.xs (file contents):
Revision 1.370 by root, Thu Aug 20 21:38:51 2009 UTC vs.
Revision 1.405 by root, Sat Jun 11 13:01:26 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
… …
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "schmorp.h" 16#include "schmorp.h"
17#include "ecb.h"
12 18
19#include <stddef.h>
13#include <stdio.h> 20#include <stdio.h>
14#include <errno.h> 21#include <errno.h>
15#include <assert.h> 22#include <assert.h>
16 23
17#ifdef WIN32 24#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0
26#endif
27
28#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY
18# undef setjmp 30# undef setjmp
19# undef longjmp 31# undef longjmp
20# undef _exit 32# undef _exit
21# define setjmp _setjmp /* deep magic */ 33# define setjmp _setjmp /* deep magic */
22#else 34#else
… …
76# define STACKLEVEL ((void *)&stacklevel) 88# define STACKLEVEL ((void *)&stacklevel)
77#endif 89#endif
78 90
79#define IN_DESTRUCT PL_dirty 91#define IN_DESTRUCT PL_dirty
80 92
81#if __GNUC__ >= 3
82# define attribute(x) __attribute__(x)
83# define expect(expr,value) __builtin_expect ((expr), (value))
84# define INLINE static inline
85#else
86# define attribute(x)
87# define expect(expr,value) (expr)
88# define INLINE static
89#endif
90
91#define expect_false(expr) expect ((expr) != 0, 0)
92#define expect_true(expr) expect ((expr) != 0, 1)
93
94#define NOINLINE attribute ((noinline))
95
96#include "CoroAPI.h" 93#include "CoroAPI.h"
97#define GCoroAPI (&coroapi) /* very sneaky */ 94#define GCoroAPI (&coroapi) /* very sneaky */
98 95
99#ifdef USE_ITHREADS 96#ifdef USE_ITHREADS
100# if CORO_PTHREAD 97# if CORO_PTHREAD
101static void *coro_thx; 98static void *coro_thx;
102# endif 99# endif
103#endif 100#endif
101
102/* used in state.h */
103#define VAR(name,type) VARx(name, PL_ ## name, type)
104 104
105#ifdef __linux 105#ifdef __linux
106# include <time.h> /* for timespec */ 106# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */ 107# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime 108# ifdef SYS_clock_gettime
… …
116static void (*u2time)(pTHX_ UV ret[2]); 116static void (*u2time)(pTHX_ UV ret[2]);
117 117
118/* we hijack an hopefully unused CV flag for our purposes */ 118/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 119#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 120static OP *pp_slf (pTHX);
121static void slf_destroy (pTHX_ struct coro *coro);
121 122
122static U32 cctx_gen; 123static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 124static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 125static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 126static AV *main_mainstack; /* used to differentiate between $main and others */
… …
155static char times_valid; 156static char times_valid;
156 157
157static struct coro_cctx *cctx_first; 158static struct coro_cctx *cctx_first;
158static int cctx_count, cctx_idle; 159static int cctx_count, cctx_idle;
159 160
160enum { 161enum
162{
161 CC_MAPPED = 0x01, 163 CC_MAPPED = 0x01,
162 CC_NOREUSE = 0x02, /* throw this away after tracing */ 164 CC_NOREUSE = 0x02, /* throw this away after tracing */
163 CC_TRACE = 0x04, 165 CC_TRACE = 0x04,
164 CC_TRACE_SUB = 0x08, /* trace sub calls */ 166 CC_TRACE_SUB = 0x08, /* trace sub calls */
165 CC_TRACE_LINE = 0x10, /* trace each statement */ 167 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
186 int valgrind_id; 188 int valgrind_id;
187#endif 189#endif
188 unsigned char flags; 190 unsigned char flags;
189} coro_cctx; 191} coro_cctx;
190 192
191coro_cctx *cctx_current; /* the currently running cctx */ 193static coro_cctx *cctx_current; /* the currently running cctx */
192 194
193/*****************************************************************************/ 195/*****************************************************************************/
194 196
197static MGVTBL coro_state_vtbl;
198
195enum { 199enum
200{
196 CF_RUNNING = 0x0001, /* coroutine is running */ 201 CF_RUNNING = 0x0001, /* coroutine is running */
197 CF_READY = 0x0002, /* coroutine is ready */ 202 CF_READY = 0x0002, /* coroutine is ready */
198 CF_NEW = 0x0004, /* has never been switched to */ 203 CF_NEW = 0x0004, /* has never been switched to */
199 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 204 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
200 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 205 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
206 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
201}; 207};
202 208
203/* the structure where most of the perl state is stored, overlaid on the cxstack */ 209/* the structure where most of the perl state is stored, overlaid on the cxstack */
204typedef struct 210typedef struct
205{ 211{
206 SV *defsv;
207 AV *defav;
208 SV *errsv;
209 SV *irsgv;
210 HV *hinthv;
211#define VAR(name,type) type name; 212#define VARx(name,expr,type) type name;
212# include "state.h" 213# include "state.h"
213#undef VAR 214#undef VARx
214} perl_slots; 215} perl_slots;
215 216
217// how many context stack entries do we need for perl_slots
216#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 218#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
217 219
218/* this is a structure representing a perl-level coroutine */ 220/* this is a structure representing a perl-level coroutine */
219struct coro { 221struct coro
222{
220 /* the C coroutine allocated to this perl coroutine, if any */ 223 /* the C coroutine allocated to this perl coroutine, if any */
221 coro_cctx *cctx; 224 coro_cctx *cctx;
222 225
223 /* ready queue */ 226 /* ready queue */
224 struct coro *next_ready; 227 struct coro *next_ready;
… …
226 /* state data */ 229 /* state data */
227 struct CoroSLF slf_frame; /* saved slf frame */ 230 struct CoroSLF slf_frame; /* saved slf frame */
228 AV *mainstack; 231 AV *mainstack;
229 perl_slots *slot; /* basically the saved sp */ 232 perl_slots *slot; /* basically the saved sp */
230 233
231 CV *startcv; /* the CV to execute */ 234 CV *startcv; /* the CV to execute */
232 AV *args; /* data associated with this coroutine (initial args) */ 235 AV *args; /* data associated with this coroutine (initial args) */
233 int refcnt; /* coroutines are refcounted, yes */
234 int flags; /* CF_ flags */ 236 int flags; /* CF_ flags */
235 HV *hv; /* the perl hash associated with this coro, if any */ 237 HV *hv; /* the perl hash associated with this coro, if any */
236 void (*on_destroy)(pTHX_ struct coro *coro);
237 238
238 /* statistics */ 239 /* statistics */
239 int usecount; /* number of transfers to this coro */ 240 int usecount; /* number of transfers to this coro */
240 241
241 /* coro process data */ 242 /* coro process data */
242 int prio; 243 int prio;
243 SV *except; /* exception to be thrown */ 244 SV *except; /* exception to be thrown */
244 SV *rouse_cb; 245 SV *rouse_cb; /* last rouse callback */
246 AV *on_destroy; /* callbacks or coros to notify on destroy */
247 AV *status; /* the exit status list */
245 248
246 /* async_pool */ 249 /* async_pool */
247 SV *saved_deffh; 250 SV *saved_deffh;
248 SV *invoke_cb; 251 SV *invoke_cb;
249 AV *invoke_av; 252 AV *invoke_av;
250 253
251 /* on_enter/on_leave */ 254 /* on_enter/on_leave */
252 AV *on_enter; 255 AV *on_enter;
253 AV *on_leave; 256 AV *on_leave;
254 257
258 /* swap_sv */
259 AV *swap_sv;
260
255 /* times */ 261 /* times */
256 coro_ts t_cpu, t_real; 262 coro_ts t_cpu, t_real;
257 263
258 /* linked list */ 264 /* linked list */
259 struct coro *next, *prev; 265 struct coro *next, *prev;
… …
262typedef struct coro *Coro__State; 268typedef struct coro *Coro__State;
263typedef struct coro *Coro__State_or_hashref; 269typedef struct coro *Coro__State_or_hashref;
264 270
265/* the following variables are effectively part of the perl context */ 271/* the following variables are effectively part of the perl context */
266/* and get copied between struct coro and these variables */ 272/* and get copied between struct coro and these variables */
267/* the mainr easonw e don't support windows process emulation */ 273/* the main reason we don't support windows process emulation */
268static struct CoroSLF slf_frame; /* the current slf frame */ 274static struct CoroSLF slf_frame; /* the current slf frame */
269 275
270/** Coro ********************************************************************/ 276/** Coro ********************************************************************/
271 277
272#define CORO_PRIO_MAX 3 278#define CORO_PRIO_MAX 3
… …
278 284
279/* for Coro.pm */ 285/* for Coro.pm */
280static SV *coro_current; 286static SV *coro_current;
281static SV *coro_readyhook; 287static SV *coro_readyhook;
282static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 288static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
283static CV *cv_coro_run, *cv_coro_terminate; 289static CV *cv_coro_run;
284static struct coro *coro_first; 290static struct coro *coro_first;
285#define coro_nready coroapi.nready 291#define coro_nready coroapi.nready
286 292
293/** JIT *********************************************************************/
294
295#if CORO_JIT
296 #ifndef CORO_JIT_TYPE
297 #if __linux && __amd64
298 #define CORO_JIT_TYPE "amd64-unix"
299 typedef void (*load_save_perl_slots_type)(perl_slots *);
300 #else
301 #undef CORO_JIT
302 #endif
303 #endif
304#endif
305
306#if CORO_JIT
307
308static load_save_perl_slots_type load_perl_slots, save_perl_slots;
309
310#endif
311
287/** Coro::Select ************************************************************/ 312/** Coro::Select ************************************************************/
288 313
289static OP *(*coro_old_pp_sselect) (pTHX); 314static OP *(*coro_old_pp_sselect) (pTHX);
290static SV *coro_select_select; 315static SV *coro_select_select;
291 316
292/* horrible hack, but if it works... */ 317/* horrible hack, but if it works... */
293static OP * 318static OP *
294coro_pp_sselect (aTHX) 319coro_pp_sselect (pTHX)
295{ 320{
296 dSP; 321 dSP;
297 PUSHMARK (SP - 4); /* fake argument list */ 322 PUSHMARK (SP - 4); /* fake argument list */
298 XPUSHs (coro_select_select); 323 XPUSHs (coro_select_select);
299 PUTBACK; 324 PUTBACK;
… …
302 PL_op->op_flags |= OPf_STACKED; 327 PL_op->op_flags |= OPf_STACKED;
303 PL_op->op_private = 0; 328 PL_op->op_private = 0;
304 return PL_ppaddr [OP_ENTERSUB](aTHX); 329 return PL_ppaddr [OP_ENTERSUB](aTHX);
305} 330}
306 331
332/** time stuff **************************************************************/
333
334#ifdef HAS_GETTIMEOFDAY
335
336ECB_INLINE void
337coro_u2time (pTHX_ UV ret[2])
338{
339 struct timeval tv;
340 gettimeofday (&tv, 0);
341
342 ret [0] = tv.tv_sec;
343 ret [1] = tv.tv_usec;
344}
345
346ECB_INLINE double
347coro_nvtime ()
348{
349 struct timeval tv;
350 gettimeofday (&tv, 0);
351
352 return tv.tv_sec + tv.tv_usec * 1e-6;
353}
354
355ECB_INLINE void
356time_init (pTHX)
357{
358 nvtime = coro_nvtime;
359 u2time = coro_u2time;
360}
361
362#else
363
364ECB_INLINE void
365time_init (pTHX)
366{
367 SV **svp;
368
369 require_pv ("Time/HiRes.pm");
370
371 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
372
373 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
374 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
375
376 nvtime = INT2PTR (double (*)(), SvIV (*svp));
377
378 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
379 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
380}
381
382#endif
383
307/** lowlevel stuff **********************************************************/ 384/** lowlevel stuff **********************************************************/
308 385
309static SV * 386static SV * ecb_noinline
310coro_get_sv (pTHX_ const char *name, int create) 387coro_get_sv (pTHX_ const char *name, int create)
311{ 388{
312#if PERL_VERSION_ATLEAST (5,10,0) 389#if PERL_VERSION_ATLEAST (5,10,0)
313 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 390 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
314 get_sv (name, create); 391 get_sv (name, create);
315#endif 392#endif
316 return get_sv (name, create); 393 return get_sv (name, create);
317} 394}
318 395
319static AV * 396static AV * ecb_noinline
320coro_get_av (pTHX_ const char *name, int create) 397coro_get_av (pTHX_ const char *name, int create)
321{ 398{
322#if PERL_VERSION_ATLEAST (5,10,0) 399#if PERL_VERSION_ATLEAST (5,10,0)
323 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 400 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
324 get_av (name, create); 401 get_av (name, create);
325#endif 402#endif
326 return get_av (name, create); 403 return get_av (name, create);
327} 404}
328 405
329static HV * 406static HV * ecb_noinline
330coro_get_hv (pTHX_ const char *name, int create) 407coro_get_hv (pTHX_ const char *name, int create)
331{ 408{
332#if PERL_VERSION_ATLEAST (5,10,0) 409#if PERL_VERSION_ATLEAST (5,10,0)
333 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 410 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
334 get_hv (name, create); 411 get_hv (name, create);
335#endif 412#endif
336 return get_hv (name, create); 413 return get_hv (name, create);
337} 414}
338 415
339INLINE void 416ECB_INLINE void
340coro_times_update () 417coro_times_update ()
341{ 418{
342#ifdef coro_clock_gettime 419#ifdef coro_clock_gettime
343 struct timespec ts; 420 struct timespec ts;
344 421
… …
357 time_real [0] = tv [0]; 434 time_real [0] = tv [0];
358 time_real [1] = tv [1] * 1000; 435 time_real [1] = tv [1] * 1000;
359#endif 436#endif
360} 437}
361 438
362INLINE void 439ECB_INLINE void
363coro_times_add (struct coro *c) 440coro_times_add (struct coro *c)
364{ 441{
365 c->t_real [1] += time_real [1]; 442 c->t_real [1] += time_real [1];
366 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 443 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
367 c->t_real [0] += time_real [0]; 444 c->t_real [0] += time_real [0];
… …
369 c->t_cpu [1] += time_cpu [1]; 446 c->t_cpu [1] += time_cpu [1];
370 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 447 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
371 c->t_cpu [0] += time_cpu [0]; 448 c->t_cpu [0] += time_cpu [0];
372} 449}
373 450
374INLINE void 451ECB_INLINE void
375coro_times_sub (struct coro *c) 452coro_times_sub (struct coro *c)
376{ 453{
377 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 454 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
378 c->t_real [1] -= time_real [1]; 455 c->t_real [1] -= time_real [1];
379 c->t_real [0] -= time_real [0]; 456 c->t_real [0] -= time_real [0];
… …
387/* magic glue */ 464/* magic glue */
388 465
389#define CORO_MAGIC_type_cv 26 466#define CORO_MAGIC_type_cv 26
390#define CORO_MAGIC_type_state PERL_MAGIC_ext 467#define CORO_MAGIC_type_state PERL_MAGIC_ext
391 468
392#define CORO_MAGIC_NN(sv, type) \ 469#define CORO_MAGIC_NN(sv, type) \
393 (expect_true (SvMAGIC (sv)->mg_type == type) \ 470 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
394 ? SvMAGIC (sv) \ 471 ? SvMAGIC (sv) \
395 : mg_find (sv, type)) 472 : mg_find (sv, type))
396 473
397#define CORO_MAGIC(sv, type) \ 474#define CORO_MAGIC(sv, type) \
398 (expect_true (SvMAGIC (sv)) \ 475 (ecb_expect_true (SvMAGIC (sv)) \
399 ? CORO_MAGIC_NN (sv, type) \ 476 ? CORO_MAGIC_NN (sv, type) \
400 : 0) 477 : 0)
401 478
402#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 479#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
403#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 480#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
404 481
482ECB_INLINE MAGIC *
483SvSTATEhv_p (pTHX_ SV *coro)
484{
485 MAGIC *mg;
486
487 if (ecb_expect_true (
488 SvTYPE (coro) == SVt_PVHV
489 && (mg = CORO_MAGIC_state (coro))
490 && mg->mg_virtual == &coro_state_vtbl
491 ))
492 return mg;
493
494 return 0;
495}
496
405INLINE struct coro * 497ECB_INLINE struct coro *
406SvSTATE_ (pTHX_ SV *coro) 498SvSTATE_ (pTHX_ SV *coro)
407{ 499{
408 HV *stash;
409 MAGIC *mg; 500 MAGIC *mg;
410 501
411 if (SvROK (coro)) 502 if (SvROK (coro))
412 coro = SvRV (coro); 503 coro = SvRV (coro);
413 504
414 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 505 mg = SvSTATEhv_p (aTHX_ coro);
506 if (!mg)
415 croak ("Coro::State object required"); 507 croak ("Coro::State object required");
416 508
417 stash = SvSTASH (coro);
418 if (expect_false (stash != coro_stash && stash != coro_state_stash))
419 {
420 /* very slow, but rare, check */
421 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
422 croak ("Coro::State object required");
423 }
424
425 mg = CORO_MAGIC_state (coro);
426 return (struct coro *)mg->mg_ptr; 509 return (struct coro *)mg->mg_ptr;
427} 510}
428 511
429#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 512#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
430 513
… …
433#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 516#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
434 517
435/*****************************************************************************/ 518/*****************************************************************************/
436/* padlist management and caching */ 519/* padlist management and caching */
437 520
438static AV * 521ECB_INLINE AV *
439coro_derive_padlist (pTHX_ CV *cv) 522coro_derive_padlist (pTHX_ CV *cv)
440{ 523{
441 AV *padlist = CvPADLIST (cv); 524 AV *padlist = CvPADLIST (cv);
442 AV *newpadlist, *newpad; 525 AV *newpadlist, *newpad;
443 526
… …
455 av_store (newpadlist, 1, (SV *)newpad); 538 av_store (newpadlist, 1, (SV *)newpad);
456 539
457 return newpadlist; 540 return newpadlist;
458} 541}
459 542
460static void 543ECB_INLINE void
461free_padlist (pTHX_ AV *padlist) 544free_padlist (pTHX_ AV *padlist)
462{ 545{
463 /* may be during global destruction */ 546 /* may be during global destruction */
464 if (!IN_DESTRUCT) 547 if (!IN_DESTRUCT)
465 { 548 {
… …
508 0, 0, 0, 0, 591 0, 0, 0, 0,
509 coro_cv_free 592 coro_cv_free
510}; 593};
511 594
512/* the next two functions merely cache the padlists */ 595/* the next two functions merely cache the padlists */
513static void 596ECB_INLINE void
514get_padlist (pTHX_ CV *cv) 597get_padlist (pTHX_ CV *cv)
515{ 598{
516 MAGIC *mg = CORO_MAGIC_cv (cv); 599 MAGIC *mg = CORO_MAGIC_cv (cv);
517 AV *av; 600 AV *av;
518 601
519 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 602 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
520 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 603 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
521 else 604 else
522 { 605 {
523#if CORO_PREFER_PERL_FUNCTIONS 606#if CORO_PREFER_PERL_FUNCTIONS
524 /* this is probably cleaner? but also slower! */ 607 /* this is probably cleaner? but also slower! */
… …
531 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 614 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
532#endif 615#endif
533 } 616 }
534} 617}
535 618
536static void 619ECB_INLINE void
537put_padlist (pTHX_ CV *cv) 620put_padlist (pTHX_ CV *cv)
538{ 621{
539 MAGIC *mg = CORO_MAGIC_cv (cv); 622 MAGIC *mg = CORO_MAGIC_cv (cv);
540 AV *av; 623 AV *av;
541 624
542 if (expect_false (!mg)) 625 if (ecb_expect_false (!mg))
543 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 626 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
544 627
545 av = (AV *)mg->mg_obj; 628 av = (AV *)mg->mg_obj;
546 629
547 if (expect_false (AvFILLp (av) >= AvMAX (av))) 630 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
548 av_extend (av, AvFILLp (av) + 1); 631 av_extend (av, AvFILLp (av) + 1);
549 632
550 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 633 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
551} 634}
552 635
553/** load & save, init *******************************************************/ 636/** load & save, init *******************************************************/
637
638/* swap sv heads, at least logically */
639static void
640swap_svs (pTHX_ Coro__State c)
641{
642 int i;
643
644 for (i = 0; i <= AvFILLp (c->swap_sv); )
645 {
646 SV *a = AvARRAY (c->swap_sv)[i++];
647 SV *b = AvARRAY (c->swap_sv)[i++];
648
649 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
650 SV tmp;
651
652 /* swap sv_any */
653 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
654
655 /* swap sv_flags */
656 SvFLAGS (&tmp) = SvFLAGS (a);
657 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
658 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
659
660#if PERL_VERSION_ATLEAST (5,10,0)
661 /* perl 5.10 complicates this _quite_ a bit, but it also is
662 * much faster, so no quarrels here. alternatively, we could
663 * sv_upgrade to avoid this.
664 */
665 {
666 /* swap sv_u */
667 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
668
669 /* if SvANY points to the head, we need to adjust the pointers,
670 * as the pointer for a still points to b, and maybe vice versa.
671 */
672 #define svany_in_head(type) \
673 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
674
675 if (svany_in_head (SvTYPE (a)))
676 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
677
678 if (svany_in_head (SvTYPE (b)))
679 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
680 }
681#endif
682 }
683}
684
685#define SWAP_SVS(coro) \
686 if (ecb_expect_false ((coro)->swap_sv)) \
687 swap_svs (aTHX_ (coro))
554 688
555static void 689static void
556on_enterleave_call (pTHX_ SV *cb); 690on_enterleave_call (pTHX_ SV *cb);
557 691
558static void 692static void
… …
561 perl_slots *slot = c->slot; 695 perl_slots *slot = c->slot;
562 c->slot = 0; 696 c->slot = 0;
563 697
564 PL_mainstack = c->mainstack; 698 PL_mainstack = c->mainstack;
565 699
566 GvSV (PL_defgv) = slot->defsv; 700#if CORO_JIT
567 GvAV (PL_defgv) = slot->defav; 701 load_perl_slots (slot);
568 GvSV (PL_errgv) = slot->errsv; 702#else
569 GvSV (irsgv) = slot->irsgv;
570 GvHV (PL_hintgv) = slot->hinthv;
571
572 #define VAR(name,type) PL_ ## name = slot->name; 703 #define VARx(name,expr,type) expr = slot->name;
573 # include "state.h" 704 # include "state.h"
574 #undef VAR 705 #undef VARx
706#endif
575 707
576 { 708 {
577 dSP; 709 dSP;
578 710
579 CV *cv; 711 CV *cv;
580 712
581 /* now do the ugly restore mess */ 713 /* now do the ugly restore mess */
582 while (expect_true (cv = (CV *)POPs)) 714 while (ecb_expect_true (cv = (CV *)POPs))
583 { 715 {
584 put_padlist (aTHX_ cv); /* mark this padlist as available */ 716 put_padlist (aTHX_ cv); /* mark this padlist as available */
585 CvDEPTH (cv) = PTR2IV (POPs); 717 CvDEPTH (cv) = PTR2IV (POPs);
586 CvPADLIST (cv) = (AV *)POPs; 718 CvPADLIST (cv) = (AV *)POPs;
587 } 719 }
… …
590 } 722 }
591 723
592 slf_frame = c->slf_frame; 724 slf_frame = c->slf_frame;
593 CORO_THROW = c->except; 725 CORO_THROW = c->except;
594 726
595 if (expect_false (enable_times)) 727 if (ecb_expect_false (enable_times))
596 { 728 {
597 if (expect_false (!times_valid)) 729 if (ecb_expect_false (!times_valid))
598 coro_times_update (); 730 coro_times_update ();
599 731
600 coro_times_sub (c); 732 coro_times_sub (c);
601 } 733 }
602 734
603 if (expect_false (c->on_enter)) 735 if (ecb_expect_false (c->on_enter))
604 { 736 {
605 int i; 737 int i;
606 738
607 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 739 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
608 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 740 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
609 } 741 }
742
743 SWAP_SVS (c);
610} 744}
611 745
612static void 746static void
613save_perl (pTHX_ Coro__State c) 747save_perl (pTHX_ Coro__State c)
614{ 748{
749 SWAP_SVS (c);
750
615 if (expect_false (c->on_leave)) 751 if (ecb_expect_false (c->on_leave))
616 { 752 {
617 int i; 753 int i;
618 754
619 for (i = AvFILLp (c->on_leave); i >= 0; --i) 755 for (i = AvFILLp (c->on_leave); i >= 0; --i)
620 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 756 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
621 } 757 }
622 758
623 times_valid = 0; 759 times_valid = 0;
624 760
625 if (expect_false (enable_times)) 761 if (ecb_expect_false (enable_times))
626 { 762 {
627 coro_times_update (); times_valid = 1; 763 coro_times_update (); times_valid = 1;
628 coro_times_add (c); 764 coro_times_add (c);
629 } 765 }
630 766
… …
644 780
645 XPUSHs (Nullsv); 781 XPUSHs (Nullsv);
646 /* this loop was inspired by pp_caller */ 782 /* this loop was inspired by pp_caller */
647 for (;;) 783 for (;;)
648 { 784 {
649 while (expect_true (cxix >= 0)) 785 while (ecb_expect_true (cxix >= 0))
650 { 786 {
651 PERL_CONTEXT *cx = &ccstk[cxix--]; 787 PERL_CONTEXT *cx = &ccstk[cxix--];
652 788
653 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 789 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
654 { 790 {
655 CV *cv = cx->blk_sub.cv; 791 CV *cv = cx->blk_sub.cv;
656 792
657 if (expect_true (CvDEPTH (cv))) 793 if (ecb_expect_true (CvDEPTH (cv)))
658 { 794 {
659 EXTEND (SP, 3); 795 EXTEND (SP, 3);
660 PUSHs ((SV *)CvPADLIST (cv)); 796 PUSHs ((SV *)CvPADLIST (cv));
661 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 797 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
662 PUSHs ((SV *)cv); 798 PUSHs ((SV *)cv);
… …
665 get_padlist (aTHX_ cv); 801 get_padlist (aTHX_ cv);
666 } 802 }
667 } 803 }
668 } 804 }
669 805
670 if (expect_true (top_si->si_type == PERLSI_MAIN)) 806 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
671 break; 807 break;
672 808
673 top_si = top_si->si_prev; 809 top_si = top_si->si_prev;
674 ccstk = top_si->si_cxstack; 810 ccstk = top_si->si_cxstack;
675 cxix = top_si->si_cxix; 811 cxix = top_si->si_cxix;
… …
677 813
678 PUTBACK; 814 PUTBACK;
679 } 815 }
680 816
681 /* allocate some space on the context stack for our purposes */ 817 /* allocate some space on the context stack for our purposes */
682 /* we manually unroll here, as usually 2 slots is enough */ 818 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
683 if (SLOT_COUNT >= 1) CXINC;
684 if (SLOT_COUNT >= 2) CXINC;
685 if (SLOT_COUNT >= 3) CXINC;
686 { 819 {
687 unsigned int i; 820 unsigned int i;
821
688 for (i = 3; i < SLOT_COUNT; ++i) 822 for (i = 0; i < SLOT_COUNT; ++i)
689 CXINC; 823 CXINC;
690 } 824
691 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 825 cxstack_ix -= SLOT_COUNT; /* undo allocation */
826 }
692 827
693 c->mainstack = PL_mainstack; 828 c->mainstack = PL_mainstack;
694 829
695 { 830 {
696 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 831 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
697 832
698 slot->defav = GvAV (PL_defgv); 833#if CORO_JIT
699 slot->defsv = DEFSV; 834 save_perl_slots (slot);
700 slot->errsv = ERRSV; 835#else
701 slot->irsgv = GvSV (irsgv);
702 slot->hinthv = GvHV (PL_hintgv);
703
704 #define VAR(name,type) slot->name = PL_ ## name; 836 #define VARx(name,expr,type) slot->name = expr;
705 # include "state.h" 837 # include "state.h"
706 #undef VAR 838 #undef VARx
839#endif
707 } 840 }
708} 841}
709 842
710/* 843/*
711 * allocate various perl stacks. This is almost an exact copy 844 * allocate various perl stacks. This is almost an exact copy
… …
717# define coro_init_stacks(thx) init_stacks () 850# define coro_init_stacks(thx) init_stacks ()
718#else 851#else
719static void 852static void
720coro_init_stacks (pTHX) 853coro_init_stacks (pTHX)
721{ 854{
722 PL_curstackinfo = new_stackinfo(32, 8); 855 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
723 PL_curstackinfo->si_type = PERLSI_MAIN; 856 PL_curstackinfo->si_type = PERLSI_MAIN;
724 PL_curstack = PL_curstackinfo->si_stack; 857 PL_curstack = PL_curstackinfo->si_stack;
725 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 858 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
726 859
727 PL_stack_base = AvARRAY(PL_curstack); 860 PL_stack_base = AvARRAY(PL_curstack);
… …
834#endif 967#endif
835 968
836/* 969/*
837 * This overrides the default magic get method of %SIG elements. 970 * This overrides the default magic get method of %SIG elements.
838 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 971 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
839 * and instead of trying to save and restore the hash elements, we just provide 972 * and instead of trying to save and restore the hash elements (extremely slow),
840 * readback here. 973 * we just provide our own readback here.
841 */ 974 */
842static int 975static int ecb_cold
843coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 976coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
844{ 977{
845 const char *s = MgPV_nolen_const (mg); 978 const char *s = MgPV_nolen_const (mg);
846 979
847 if (*s == '_') 980 if (*s == '_')
… …
859 } 992 }
860 993
861 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 994 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
862} 995}
863 996
864static int 997static int ecb_cold
865coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 998coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
866{ 999{
867 const char *s = MgPV_nolen_const (mg); 1000 const char *s = MgPV_nolen_const (mg);
868 1001
869 if (*s == '_') 1002 if (*s == '_')
… …
883 } 1016 }
884 1017
885 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1018 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
886} 1019}
887 1020
888static int 1021static int ecb_cold
889coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1022coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
890{ 1023{
891 const char *s = MgPV_nolen_const (mg); 1024 const char *s = MgPV_nolen_const (mg);
892 1025
893 if (*s == '_') 1026 if (*s == '_')
… …
926slf_check_repeat (pTHX_ struct CoroSLF *frame) 1059slf_check_repeat (pTHX_ struct CoroSLF *frame)
927{ 1060{
928 return 1; 1061 return 1;
929} 1062}
930 1063
931static UNOP coro_setup_op; 1064static UNOP init_perl_op;
932 1065
933static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1066ecb_noinline static void /* noinline to keep it out of the transfer fast path */
934coro_setup (pTHX_ struct coro *coro) 1067init_perl (pTHX_ struct coro *coro)
935{ 1068{
936 /* 1069 /*
937 * emulate part of the perl startup here. 1070 * emulate part of the perl startup here.
938 */ 1071 */
939 coro_init_stacks (aTHX); 1072 coro_init_stacks (aTHX);
… …
946 PL_comppad_name_fill = 0; 1079 PL_comppad_name_fill = 0;
947 PL_comppad_name_floor = 0; 1080 PL_comppad_name_floor = 0;
948 PL_curpm = 0; 1081 PL_curpm = 0;
949 PL_curpad = 0; 1082 PL_curpad = 0;
950 PL_localizing = 0; 1083 PL_localizing = 0;
951 PL_dirty = 0;
952 PL_restartop = 0; 1084 PL_restartop = 0;
953#if PERL_VERSION_ATLEAST (5,10,0) 1085#if PERL_VERSION_ATLEAST (5,10,0)
954 PL_parser = 0; 1086 PL_parser = 0;
955#endif 1087#endif
956 PL_hints = 0; 1088 PL_hints = 0;
957 1089
958 /* recreate the die/warn hooks */ 1090 /* recreate the die/warn hooks */
959 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1091 PL_diehook = SvREFCNT_inc (rv_diehook);
960 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1092 PL_warnhook = SvREFCNT_inc (rv_warnhook);
961 1093
962 GvSV (PL_defgv) = newSV (0); 1094 GvSV (PL_defgv) = newSV (0);
963 GvAV (PL_defgv) = coro->args; coro->args = 0; 1095 GvAV (PL_defgv) = coro->args; coro->args = 0;
964 GvSV (PL_errgv) = newSV (0); 1096 GvSV (PL_errgv) = newSV (0);
965 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1097 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
… …
986 /* this newly created coroutine might be run on an existing cctx which most 1118 /* this newly created coroutine might be run on an existing cctx which most
987 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1119 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
988 */ 1120 */
989 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1121 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
990 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1122 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1123 slf_frame.destroy = 0;
991 1124
992 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1125 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
993 coro_setup_op.op_next = PL_op; 1126 init_perl_op.op_next = PL_op;
994 coro_setup_op.op_type = OP_ENTERSUB; 1127 init_perl_op.op_type = OP_ENTERSUB;
995 coro_setup_op.op_ppaddr = pp_slf; 1128 init_perl_op.op_ppaddr = pp_slf;
996 /* no flags etc. required, as an init function won't be called */ 1129 /* no flags etc. required, as an init function won't be called */
997 1130
998 PL_op = (OP *)&coro_setup_op; 1131 PL_op = (OP *)&init_perl_op;
999 1132
1000 /* copy throw, in case it was set before coro_setup */ 1133 /* copy throw, in case it was set before init_perl */
1001 CORO_THROW = coro->except; 1134 CORO_THROW = coro->except;
1002 1135
1136 SWAP_SVS (coro);
1137
1003 if (expect_false (enable_times)) 1138 if (ecb_expect_false (enable_times))
1004 { 1139 {
1005 coro_times_update (); 1140 coro_times_update ();
1006 coro_times_sub (coro); 1141 coro_times_sub (coro);
1007 } 1142 }
1008} 1143}
… …
1027 dounwind (-1); 1162 dounwind (-1);
1028 } 1163 }
1029} 1164}
1030 1165
1031static void 1166static void
1032coro_destruct_perl (pTHX_ struct coro *coro) 1167destroy_perl (pTHX_ struct coro *coro)
1033{ 1168{
1034 SV *svf [9]; 1169 SV *svf [9];
1035 1170
1036 { 1171 {
1172 SV *old_current = SvRV (coro_current);
1037 struct coro *current = SvSTATE_current; 1173 struct coro *current = SvSTATE (old_current);
1038 1174
1039 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1175 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1040 1176
1041 save_perl (aTHX_ current); 1177 save_perl (aTHX_ current);
1178
1179 /* this will cause transfer_check to croak on block*/
1180 SvRV_set (coro_current, (SV *)coro->hv);
1181
1042 load_perl (aTHX_ coro); 1182 load_perl (aTHX_ coro);
1043 1183
1044 coro_unwind_stacks (aTHX); 1184 coro_unwind_stacks (aTHX);
1185
1186 /* restore swapped sv's */
1187 SWAP_SVS (coro);
1188
1045 coro_destruct_stacks (aTHX); 1189 coro_destruct_stacks (aTHX);
1046 1190
1047 // now save some sv's to be free'd later 1191 // now save some sv's to be free'd later
1048 svf [0] = GvSV (PL_defgv); 1192 svf [0] = GvSV (PL_defgv);
1049 svf [1] = (SV *)GvAV (PL_defgv); 1193 svf [1] = (SV *)GvAV (PL_defgv);
… …
1054 svf [6] = (SV *)GvHV (PL_hintgv); 1198 svf [6] = (SV *)GvHV (PL_hintgv);
1055 svf [7] = PL_diehook; 1199 svf [7] = PL_diehook;
1056 svf [8] = PL_warnhook; 1200 svf [8] = PL_warnhook;
1057 assert (9 == sizeof (svf) / sizeof (*svf)); 1201 assert (9 == sizeof (svf) / sizeof (*svf));
1058 1202
1203 SvRV_set (coro_current, old_current);
1204
1059 load_perl (aTHX_ current); 1205 load_perl (aTHX_ current);
1060 } 1206 }
1061 1207
1062 { 1208 {
1063 unsigned int i; 1209 unsigned int i;
… …
1070 SvREFCNT_dec (coro->invoke_cb); 1216 SvREFCNT_dec (coro->invoke_cb);
1071 SvREFCNT_dec (coro->invoke_av); 1217 SvREFCNT_dec (coro->invoke_av);
1072 } 1218 }
1073} 1219}
1074 1220
1075INLINE void 1221ECB_INLINE void
1076free_coro_mortal (pTHX) 1222free_coro_mortal (pTHX)
1077{ 1223{
1078 if (expect_true (coro_mortal)) 1224 if (ecb_expect_true (coro_mortal))
1079 { 1225 {
1080 SvREFCNT_dec (coro_mortal); 1226 SvREFCNT_dec ((SV *)coro_mortal);
1081 coro_mortal = 0; 1227 coro_mortal = 0;
1082 } 1228 }
1083} 1229}
1084 1230
1085static int 1231static int
… …
1218 1364
1219 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1365 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1220} 1366}
1221 1367
1222/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1368/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1223static void NOINLINE 1369static void ecb_noinline
1224cctx_prepare (pTHX) 1370cctx_prepare (pTHX)
1225{ 1371{
1226 PL_top_env = &PL_start_env; 1372 PL_top_env = &PL_start_env;
1227 1373
1228 if (cctx_current->flags & CC_TRACE) 1374 if (cctx_current->flags & CC_TRACE)
… …
1239 slf_frame.prepare = slf_prepare_set_stacklevel; 1385 slf_frame.prepare = slf_prepare_set_stacklevel;
1240 slf_frame.check = slf_check_set_stacklevel; 1386 slf_frame.check = slf_check_set_stacklevel;
1241} 1387}
1242 1388
1243/* the tail of transfer: execute stuff we can only do after a transfer */ 1389/* the tail of transfer: execute stuff we can only do after a transfer */
1244INLINE void 1390ECB_INLINE void
1245transfer_tail (pTHX) 1391transfer_tail (pTHX)
1246{ 1392{
1247 free_coro_mortal (aTHX); 1393 free_coro_mortal (aTHX);
1248} 1394}
1249 1395
… …
1372cctx_destroy (coro_cctx *cctx) 1518cctx_destroy (coro_cctx *cctx)
1373{ 1519{
1374 if (!cctx) 1520 if (!cctx)
1375 return; 1521 return;
1376 1522
1377 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1523 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1378 1524
1379 --cctx_count; 1525 --cctx_count;
1380 coro_destroy (&cctx->cctx); 1526 coro_destroy (&cctx->cctx);
1381 1527
1382 /* coro_transfer creates new, empty cctx's */ 1528 /* coro_transfer creates new, empty cctx's */
… …
1401#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1547#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1402 1548
1403static coro_cctx * 1549static coro_cctx *
1404cctx_get (pTHX) 1550cctx_get (pTHX)
1405{ 1551{
1406 while (expect_true (cctx_first)) 1552 while (ecb_expect_true (cctx_first))
1407 { 1553 {
1408 coro_cctx *cctx = cctx_first; 1554 coro_cctx *cctx = cctx_first;
1409 cctx_first = cctx->next; 1555 cctx_first = cctx->next;
1410 --cctx_idle; 1556 --cctx_idle;
1411 1557
1412 if (expect_true (!CCTX_EXPIRED (cctx))) 1558 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1413 return cctx; 1559 return cctx;
1414 1560
1415 cctx_destroy (cctx); 1561 cctx_destroy (cctx);
1416 } 1562 }
1417 1563
… …
1422cctx_put (coro_cctx *cctx) 1568cctx_put (coro_cctx *cctx)
1423{ 1569{
1424 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1570 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1425 1571
1426 /* free another cctx if overlimit */ 1572 /* free another cctx if overlimit */
1427 if (expect_false (cctx_idle >= cctx_max_idle)) 1573 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1428 { 1574 {
1429 coro_cctx *first = cctx_first; 1575 coro_cctx *first = cctx_first;
1430 cctx_first = first->next; 1576 cctx_first = first->next;
1431 --cctx_idle; 1577 --cctx_idle;
1432 1578
… …
1443static void 1589static void
1444transfer_check (pTHX_ struct coro *prev, struct coro *next) 1590transfer_check (pTHX_ struct coro *prev, struct coro *next)
1445{ 1591{
1446 /* TODO: throwing up here is considered harmful */ 1592 /* TODO: throwing up here is considered harmful */
1447 1593
1448 if (expect_true (prev != next)) 1594 if (ecb_expect_true (prev != next))
1449 { 1595 {
1450 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1596 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1451 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1597 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1452 1598
1453 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1599 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1454 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1600 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1455 1601
1456#if !PERL_VERSION_ATLEAST (5,10,0) 1602#if !PERL_VERSION_ATLEAST (5,10,0)
1457 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1603 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1458 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1604 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1459#endif 1605#endif
1460 } 1606 }
1461} 1607}
1462 1608
1463/* always use the TRANSFER macro */ 1609/* always use the TRANSFER macro */
1464static void NOINLINE /* noinline so we have a fixed stackframe */ 1610static void ecb_noinline /* noinline so we have a fixed stackframe */
1465transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1611transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1466{ 1612{
1467 dSTACKLEVEL; 1613 dSTACKLEVEL;
1468 1614
1469 /* sometimes transfer is only called to set idle_sp */ 1615 /* sometimes transfer is only called to set idle_sp */
1470 if (expect_false (!prev)) 1616 if (ecb_expect_false (!prev))
1471 { 1617 {
1472 cctx_current->idle_sp = STACKLEVEL; 1618 cctx_current->idle_sp = STACKLEVEL;
1473 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1619 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1474 } 1620 }
1475 else if (expect_true (prev != next)) 1621 else if (ecb_expect_true (prev != next))
1476 { 1622 {
1477 coro_cctx *cctx_prev; 1623 coro_cctx *cctx_prev;
1478 1624
1479 if (expect_false (prev->flags & CF_NEW)) 1625 if (ecb_expect_false (prev->flags & CF_NEW))
1480 { 1626 {
1481 /* create a new empty/source context */ 1627 /* create a new empty/source context */
1482 prev->flags &= ~CF_NEW; 1628 prev->flags &= ~CF_NEW;
1483 prev->flags |= CF_RUNNING; 1629 prev->flags |= CF_RUNNING;
1484 } 1630 }
… …
1487 next->flags |= CF_RUNNING; 1633 next->flags |= CF_RUNNING;
1488 1634
1489 /* first get rid of the old state */ 1635 /* first get rid of the old state */
1490 save_perl (aTHX_ prev); 1636 save_perl (aTHX_ prev);
1491 1637
1492 if (expect_false (next->flags & CF_NEW)) 1638 if (ecb_expect_false (next->flags & CF_NEW))
1493 { 1639 {
1494 /* need to start coroutine */ 1640 /* need to start coroutine */
1495 next->flags &= ~CF_NEW; 1641 next->flags &= ~CF_NEW;
1496 /* setup coroutine call */ 1642 /* setup coroutine call */
1497 coro_setup (aTHX_ next); 1643 init_perl (aTHX_ next);
1498 } 1644 }
1499 else 1645 else
1500 load_perl (aTHX_ next); 1646 load_perl (aTHX_ next);
1501 1647
1502 /* possibly untie and reuse the cctx */ 1648 /* possibly untie and reuse the cctx */
1503 if (expect_true ( 1649 if (ecb_expect_true (
1504 cctx_current->idle_sp == STACKLEVEL 1650 cctx_current->idle_sp == STACKLEVEL
1505 && !(cctx_current->flags & CC_TRACE) 1651 && !(cctx_current->flags & CC_TRACE)
1506 && !force_cctx 1652 && !force_cctx
1507 )) 1653 ))
1508 { 1654 {
1509 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1655 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1510 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1656 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1511 1657
1512 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1658 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1513 /* without this the next cctx_get might destroy the running cctx while still in use */ 1659 /* without this the next cctx_get might destroy the running cctx while still in use */
1514 if (expect_false (CCTX_EXPIRED (cctx_current))) 1660 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1515 if (expect_true (!next->cctx)) 1661 if (ecb_expect_true (!next->cctx))
1516 next->cctx = cctx_get (aTHX); 1662 next->cctx = cctx_get (aTHX);
1517 1663
1518 cctx_put (cctx_current); 1664 cctx_put (cctx_current);
1519 } 1665 }
1520 else 1666 else
1521 prev->cctx = cctx_current; 1667 prev->cctx = cctx_current;
1522 1668
1523 ++next->usecount; 1669 ++next->usecount;
1524 1670
1525 cctx_prev = cctx_current; 1671 cctx_prev = cctx_current;
1526 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1672 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1527 1673
1528 next->cctx = 0; 1674 next->cctx = 0;
1529 1675
1530 if (expect_false (cctx_prev != cctx_current)) 1676 if (ecb_expect_false (cctx_prev != cctx_current))
1531 { 1677 {
1532 cctx_prev->top_env = PL_top_env; 1678 cctx_prev->top_env = PL_top_env;
1533 PL_top_env = cctx_current->top_env; 1679 PL_top_env = cctx_current->top_env;
1534 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1680 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1535 } 1681 }
… …
1541#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1687#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1542#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1688#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1543 1689
1544/** high level stuff ********************************************************/ 1690/** high level stuff ********************************************************/
1545 1691
1692/* this function is actually Coro, not Coro::State, but we call it from here */
1693/* because it is convenient - but it hasn't been declared yet for that reason */
1546static int 1694static void
1695coro_call_on_destroy (pTHX_ struct coro *coro);
1696
1697static void
1547coro_state_destroy (pTHX_ struct coro *coro) 1698coro_state_destroy (pTHX_ struct coro *coro)
1548{ 1699{
1549 if (coro->flags & CF_DESTROYED) 1700 if (coro->flags & CF_ZOMBIE)
1550 return 0; 1701 return;
1551 1702
1552 if (coro->on_destroy && !PL_dirty)
1553 coro->on_destroy (aTHX_ coro); 1703 slf_destroy (aTHX_ coro);
1554 1704
1555 coro->flags |= CF_DESTROYED; 1705 coro->flags |= CF_ZOMBIE;
1556 1706
1557 if (coro->flags & CF_READY) 1707 if (coro->flags & CF_READY)
1558 { 1708 {
1559 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1709 /* reduce nready, as destroying a ready coro effectively unreadies it */
1560 /* alternative: look through all ready queues and remove the coro */ 1710 /* alternative: look through all ready queues and remove the coro */
1561 --coro_nready; 1711 --coro_nready;
1562 } 1712 }
1563 else 1713 else
1564 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1714 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1715
1716 if (coro->next) coro->next->prev = coro->prev;
1717 if (coro->prev) coro->prev->next = coro->next;
1718 if (coro == coro_first) coro_first = coro->next;
1565 1719
1566 if (coro->mainstack 1720 if (coro->mainstack
1567 && coro->mainstack != main_mainstack 1721 && coro->mainstack != main_mainstack
1568 && coro->slot 1722 && coro->slot
1569 && !PL_dirty) 1723 && !PL_dirty)
1570 coro_destruct_perl (aTHX_ coro); 1724 destroy_perl (aTHX_ coro);
1571 1725
1572 cctx_destroy (coro->cctx); 1726 cctx_destroy (coro->cctx);
1573 SvREFCNT_dec (coro->startcv); 1727 SvREFCNT_dec (coro->startcv);
1574 SvREFCNT_dec (coro->args); 1728 SvREFCNT_dec (coro->args);
1729 SvREFCNT_dec (coro->swap_sv);
1575 SvREFCNT_dec (CORO_THROW); 1730 SvREFCNT_dec (CORO_THROW);
1576 1731
1577 if (coro->next) coro->next->prev = coro->prev; 1732 coro_call_on_destroy (aTHX_ coro);
1578 if (coro->prev) coro->prev->next = coro->next;
1579 if (coro == coro_first) coro_first = coro->next;
1580 1733
1581 return 1; 1734 /* more destruction mayhem in coro_state_free */
1582} 1735}
1583 1736
1584static int 1737static int
1585coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1738coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1586{ 1739{
1587 struct coro *coro = (struct coro *)mg->mg_ptr; 1740 struct coro *coro = (struct coro *)mg->mg_ptr;
1588 mg->mg_ptr = 0; 1741 mg->mg_ptr = 0;
1589 1742
1590 coro->hv = 0;
1591
1592 if (--coro->refcnt < 0)
1593 {
1594 coro_state_destroy (aTHX_ coro); 1743 coro_state_destroy (aTHX_ coro);
1744 SvREFCNT_dec (coro->on_destroy);
1745 SvREFCNT_dec (coro->status);
1746
1595 Safefree (coro); 1747 Safefree (coro);
1596 }
1597 1748
1598 return 0; 1749 return 0;
1599} 1750}
1600 1751
1601static int 1752static int ecb_cold
1602coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1753coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1603{ 1754{
1604 struct coro *coro = (struct coro *)mg->mg_ptr; 1755 /* called when perl clones the current process the slow way (windows process emulation) */
1605 1756 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1606 ++coro->refcnt; 1757 mg->mg_ptr = 0;
1758 mg->mg_virtual = 0;
1607 1759
1608 return 0; 1760 return 0;
1609} 1761}
1610 1762
1611static MGVTBL coro_state_vtbl = { 1763static MGVTBL coro_state_vtbl = {
… …
1636 TRANSFER (ta, 1); 1788 TRANSFER (ta, 1);
1637} 1789}
1638 1790
1639/** Coro ********************************************************************/ 1791/** Coro ********************************************************************/
1640 1792
1641INLINE void 1793ECB_INLINE void
1642coro_enq (pTHX_ struct coro *coro) 1794coro_enq (pTHX_ struct coro *coro)
1643{ 1795{
1644 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1796 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1645 1797
1646 SvREFCNT_inc_NN (coro->hv); 1798 SvREFCNT_inc_NN (coro->hv);
… …
1648 coro->next_ready = 0; 1800 coro->next_ready = 0;
1649 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1801 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1650 ready [1] = coro; 1802 ready [1] = coro;
1651} 1803}
1652 1804
1653INLINE struct coro * 1805ECB_INLINE struct coro *
1654coro_deq (pTHX) 1806coro_deq (pTHX)
1655{ 1807{
1656 int prio; 1808 int prio;
1657 1809
1658 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1810 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1711{ 1863{
1712 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1864 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1713} 1865}
1714 1866
1715/* expects to own a reference to next->hv */ 1867/* expects to own a reference to next->hv */
1716INLINE void 1868ECB_INLINE void
1717prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1869prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1718{ 1870{
1719 SV *prev_sv = SvRV (coro_current); 1871 SV *prev_sv = SvRV (coro_current);
1720 1872
1721 ta->prev = SvSTATE_hv (prev_sv); 1873 ta->prev = SvSTATE_hv (prev_sv);
… …
1734{ 1886{
1735 for (;;) 1887 for (;;)
1736 { 1888 {
1737 struct coro *next = coro_deq (aTHX); 1889 struct coro *next = coro_deq (aTHX);
1738 1890
1739 if (expect_true (next)) 1891 if (ecb_expect_true (next))
1740 { 1892 {
1741 /* cannot transfer to destroyed coros, skip and look for next */ 1893 /* cannot transfer to destroyed coros, skip and look for next */
1742 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1894 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1743 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1895 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1744 else 1896 else
1745 { 1897 {
1746 next->flags &= ~CF_READY; 1898 next->flags &= ~CF_READY;
1747 --coro_nready; 1899 --coro_nready;
… …
1754 { 1906 {
1755 /* nothing to schedule: call the idle handler */ 1907 /* nothing to schedule: call the idle handler */
1756 if (SvROK (sv_idle) 1908 if (SvROK (sv_idle)
1757 && SvOBJECT (SvRV (sv_idle))) 1909 && SvOBJECT (SvRV (sv_idle)))
1758 { 1910 {
1911 if (SvRV (sv_idle) == SvRV (coro_current))
1912 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1913
1759 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1914 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1760 api_ready (aTHX_ SvRV (sv_idle)); 1915 api_ready (aTHX_ SvRV (sv_idle));
1761 --coro_nready; 1916 --coro_nready;
1762 } 1917 }
1763 else 1918 else
1764 { 1919 {
1920 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1765 dSP; 1921 dSP;
1766 1922
1767 ENTER; 1923 ENTER;
1768 SAVETMPS; 1924 SAVETMPS;
1769 1925
… …
1776 } 1932 }
1777 } 1933 }
1778 } 1934 }
1779} 1935}
1780 1936
1781INLINE void 1937ECB_INLINE void
1782prepare_cede (pTHX_ struct coro_transfer_args *ta) 1938prepare_cede (pTHX_ struct coro_transfer_args *ta)
1783{ 1939{
1784 api_ready (aTHX_ coro_current); 1940 api_ready (aTHX_ coro_current);
1785 prepare_schedule (aTHX_ ta); 1941 prepare_schedule (aTHX_ ta);
1786} 1942}
1787 1943
1788INLINE void 1944ECB_INLINE void
1789prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1945prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1790{ 1946{
1791 SV *prev = SvRV (coro_current); 1947 SV *prev = SvRV (coro_current);
1792 1948
1793 if (coro_nready) 1949 if (coro_nready)
… …
1823{ 1979{
1824 struct coro_transfer_args ta; 1980 struct coro_transfer_args ta;
1825 1981
1826 prepare_cede (aTHX_ &ta); 1982 prepare_cede (aTHX_ &ta);
1827 1983
1828 if (expect_true (ta.prev != ta.next)) 1984 if (ecb_expect_true (ta.prev != ta.next))
1829 { 1985 {
1830 TRANSFER (ta, 1); 1986 TRANSFER (ta, 1);
1831 return 1; 1987 return 1;
1832 } 1988 }
1833 else 1989 else
… …
1876 coro->slot->runops = RUNOPS_DEFAULT; 2032 coro->slot->runops = RUNOPS_DEFAULT;
1877 } 2033 }
1878} 2034}
1879 2035
1880static void 2036static void
2037coro_push_av (pTHX_ AV *av, I32 gimme_v)
2038{
2039 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2040 {
2041 dSP;
2042
2043 if (gimme_v == G_SCALAR)
2044 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2045 else
2046 {
2047 int i;
2048 EXTEND (SP, AvFILLp (av) + 1);
2049
2050 for (i = 0; i <= AvFILLp (av); ++i)
2051 PUSHs (AvARRAY (av)[i]);
2052 }
2053
2054 PUTBACK;
2055 }
2056}
2057
2058static void
2059coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2060{
2061 if (!coro->on_destroy)
2062 coro->on_destroy = newAV ();
2063
2064 av_push (coro->on_destroy, cb);
2065}
2066
2067static void
2068slf_destroy_join (pTHX_ struct CoroSLF *frame)
2069{
2070 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2071}
2072
2073static int
2074slf_check_join (pTHX_ struct CoroSLF *frame)
2075{
2076 struct coro *coro = (struct coro *)frame->data;
2077
2078 if (!coro->status)
2079 return 1;
2080
2081 frame->destroy = 0;
2082
2083 coro_push_av (aTHX_ coro->status, GIMME_V);
2084
2085 SvREFCNT_dec ((SV *)coro->hv);
2086
2087 return 0;
2088}
2089
2090static void
2091slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2092{
2093 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2094
2095 if (items > 1)
2096 croak ("join called with too many arguments");
2097
2098 if (coro->status)
2099 frame->prepare = prepare_nop;
2100 else
2101 {
2102 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2103 frame->prepare = prepare_schedule;
2104 }
2105
2106 frame->check = slf_check_join;
2107 frame->destroy = slf_destroy_join;
2108 frame->data = (void *)coro;
2109 SvREFCNT_inc (coro->hv);
2110}
2111
2112static void
1881coro_call_on_destroy (pTHX_ struct coro *coro) 2113coro_call_on_destroy (pTHX_ struct coro *coro)
1882{ 2114{
1883 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2115 AV *od = coro->on_destroy;
1884 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1885 2116
1886 if (on_destroyp) 2117 if (!od)
1887 { 2118 return;
1888 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1889 2119
1890 while (AvFILLp (on_destroy) >= 0) 2120 while (AvFILLp (od) >= 0)
2121 {
2122 SV *cb = sv_2mortal (av_pop (od));
2123
2124 /* coro hv's (and only hv's at the moment) are supported as well */
2125 if (SvSTATEhv_p (aTHX_ cb))
2126 api_ready (aTHX_ cb);
2127 else
1891 { 2128 {
1892 dSP; /* don't disturb outer sp */ 2129 dSP; /* don't disturb outer sp */
1893 SV *cb = av_pop (on_destroy);
1894
1895 PUSHMARK (SP); 2130 PUSHMARK (SP);
1896 2131
1897 if (statusp) 2132 if (coro->status)
1898 { 2133 {
1899 int i; 2134 PUTBACK;
1900 AV *status = (AV *)SvRV (*statusp); 2135 coro_push_av (aTHX_ coro->status, G_ARRAY);
1901 EXTEND (SP, AvFILLp (status) + 1); 2136 SPAGAIN;
1902
1903 for (i = 0; i <= AvFILLp (status); ++i)
1904 PUSHs (AvARRAY (status)[i]);
1905 } 2137 }
1906 2138
1907 PUTBACK; 2139 PUTBACK;
1908 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2140 call_sv (cb, G_VOID | G_DISCARD);
1909 } 2141 }
1910 } 2142 }
1911} 2143}
1912 2144
1913static void 2145static void
1914slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2146coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1915{ 2147{
1916 int i; 2148 AV *av;
1917 HV *hv = (HV *)SvRV (coro_current); 2149
1918 AV *av = newAV (); 2150 if (coro->status)
2151 {
2152 av = coro->status;
2153 av_clear (av);
2154 }
2155 else
2156 av = coro->status = newAV ();
1919 2157
1920 /* items are actually not so common, so optimise for this case */ 2158 /* items are actually not so common, so optimise for this case */
1921 if (items) 2159 if (items)
1922 { 2160 {
2161 int i;
2162
1923 av_extend (av, items - 1); 2163 av_extend (av, items - 1);
1924 2164
1925 for (i = 0; i < items; ++i) 2165 for (i = 0; i < items; ++i)
1926 av_push (av, SvREFCNT_inc_NN (arg [i])); 2166 av_push (av, SvREFCNT_inc_NN (arg [i]));
1927 } 2167 }
2168}
1928 2169
1929 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2170static void
1930 2171slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2172{
1931 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2173 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1932 api_ready (aTHX_ sv_manager); 2174 api_ready (aTHX_ sv_manager);
1933 2175
1934 frame->prepare = prepare_schedule; 2176 frame->prepare = prepare_schedule;
1935 frame->check = slf_check_repeat; 2177 frame->check = slf_check_repeat;
1936 2178
1937 /* as a minor optimisation, we could unwind all stacks here */ 2179 /* as a minor optimisation, we could unwind all stacks here */
1938 /* but that puts extra pressure on pp_slf, and is not worth much */ 2180 /* but that puts extra pressure on pp_slf, and is not worth much */
1939 /*coro_unwind_stacks (aTHX);*/ 2181 /*coro_unwind_stacks (aTHX);*/
2182}
2183
2184static void
2185slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2186{
2187 HV *coro_hv = (HV *)SvRV (coro_current);
2188
2189 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2190 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2191}
2192
2193static void
2194slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2195{
2196 HV *coro_hv;
2197 struct coro *coro;
2198
2199 if (items <= 0)
2200 croak ("Coro::cancel called without coro object,");
2201
2202 coro = SvSTATE (arg [0]);
2203 coro_hv = coro->hv;
2204
2205 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2206
2207 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2208 {
2209 /* coro currently busy cancelling something, so just notify it */
2210 coro->slf_frame.data = (void *)coro;
2211
2212 frame->prepare = prepare_nop;
2213 frame->check = slf_check_nop;
2214 }
2215 else if (coro_hv == (HV *)SvRV (coro_current))
2216 {
2217 /* cancelling the current coro is allowed, and equals terminate */
2218 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2219 }
2220 else
2221 {
2222 struct coro *self = SvSTATE_current;
2223
2224 /* otherwise we cancel directly, purely for speed reasons
2225 * unfortunately, this requires some magic trickery, as
2226 * somebody else could cancel us, so we have to fight the cancellation.
2227 * this is ugly, and hopefully fully worth the extra speed.
2228 * besides, I can't get the slow-but-safe version working...
2229 */
2230 slf_frame.data = 0;
2231 self->flags |= CF_NOCANCEL;
2232 coro_state_destroy (aTHX_ coro);
2233 self->flags &= ~CF_NOCANCEL;
2234
2235 if (slf_frame.data)
2236 {
2237 /* while we were busy we have been cancelled, so terminate */
2238 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2239 }
2240 else
2241 {
2242 frame->prepare = prepare_nop;
2243 frame->check = slf_check_nop;
2244 }
2245 }
2246}
2247
2248static int
2249slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2250{
2251 frame->prepare = 0;
2252 coro_unwind_stacks (aTHX);
2253
2254 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2255
2256 return 1;
2257}
2258
2259static int
2260safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2261{
2262 if (coro->cctx)
2263 croak ("coro inside C callback, unable to cancel at this time, caught");
2264
2265 if (coro->flags & CF_NEW)
2266 {
2267 coro_set_status (aTHX_ coro, arg, items);
2268 coro_state_destroy (aTHX_ coro);
2269 }
2270 else
2271 {
2272 if (!coro->slf_frame.prepare)
2273 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2274
2275 slf_destroy (aTHX_ coro);
2276
2277 coro_set_status (aTHX_ coro, arg, items);
2278 coro->slf_frame.prepare = prepare_nop;
2279 coro->slf_frame.check = slf_check_safe_cancel;
2280
2281 api_ready (aTHX_ (SV *)coro->hv);
2282 }
2283
2284 return 1;
1940} 2285}
1941 2286
1942/*****************************************************************************/ 2287/*****************************************************************************/
1943/* async pool handler */ 2288/* async pool handler */
1944 2289
… …
1975slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2320slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1976{ 2321{
1977 HV *hv = (HV *)SvRV (coro_current); 2322 HV *hv = (HV *)SvRV (coro_current);
1978 struct coro *coro = SvSTATE_hv ((SV *)hv); 2323 struct coro *coro = SvSTATE_hv ((SV *)hv);
1979 2324
1980 if (expect_true (coro->saved_deffh)) 2325 if (ecb_expect_true (coro->saved_deffh))
1981 { 2326 {
1982 /* subsequent iteration */ 2327 /* subsequent iteration */
1983 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2328 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
1984 coro->saved_deffh = 0; 2329 coro->saved_deffh = 0;
1985 2330
1986 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2331 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1987 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2332 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1988 { 2333 {
1989 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2334 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1990 coro->invoke_av = newAV (); 2335 return;
1991
1992 frame->prepare = prepare_nop;
1993 } 2336 }
1994 else 2337 else
1995 { 2338 {
1996 av_clear (GvAV (PL_defgv)); 2339 av_clear (GvAV (PL_defgv));
1997 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2340 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2220static void 2563static void
2221slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2564slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2222{ 2565{
2223 frame->prepare = prepare_cede_notself; 2566 frame->prepare = prepare_cede_notself;
2224 frame->check = slf_check_nop; 2567 frame->check = slf_check_nop;
2568}
2569
2570/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571static void
2572slf_destroy (pTHX_ struct coro *coro)
2573{
2574 /* this callback is reserved for slf functions needing to do cleanup */
2575 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577
2578 /*
2579 * The on_destroy above most likely is from an SLF call.
2580 * Since by definition the SLF call will not finish when we destroy
2581 * the coro, we will have to force-finish it here, otherwise
2582 * cleanup functions cannot call SLF functions.
2583 */
2584 coro->slf_frame.prepare = 0;
2225} 2585}
2226 2586
2227/* 2587/*
2228 * these not obviously related functions are all rolled into one 2588 * these not obviously related functions are all rolled into one
2229 * function to increase chances that they all will call transfer with the same 2589 * function to increase chances that they all will call transfer with the same
… …
2236 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2596 I32 checkmark; /* mark SP to see how many elements check has pushed */
2237 2597
2238 /* set up the slf frame, unless it has already been set-up */ 2598 /* set up the slf frame, unless it has already been set-up */
2239 /* the latter happens when a new coro has been started */ 2599 /* the latter happens when a new coro has been started */
2240 /* or when a new cctx was attached to an existing coroutine */ 2600 /* or when a new cctx was attached to an existing coroutine */
2241 if (expect_true (!slf_frame.prepare)) 2601 if (ecb_expect_true (!slf_frame.prepare))
2242 { 2602 {
2243 /* first iteration */ 2603 /* first iteration */
2244 dSP; 2604 dSP;
2245 SV **arg = PL_stack_base + TOPMARK + 1; 2605 SV **arg = PL_stack_base + TOPMARK + 1;
2246 int items = SP - arg; /* args without function object */ 2606 int items = SP - arg; /* args without function object */
… …
2287 while (slf_frame.check (aTHX_ &slf_frame)); 2647 while (slf_frame.check (aTHX_ &slf_frame));
2288 2648
2289 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2649 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2290 2650
2291 /* exception handling */ 2651 /* exception handling */
2292 if (expect_false (CORO_THROW)) 2652 if (ecb_expect_false (CORO_THROW))
2293 { 2653 {
2294 SV *exception = sv_2mortal (CORO_THROW); 2654 SV *exception = sv_2mortal (CORO_THROW);
2295 2655
2296 CORO_THROW = 0; 2656 CORO_THROW = 0;
2297 sv_setsv (ERRSV, exception); 2657 sv_setsv (ERRSV, exception);
2298 croak (0); 2658 croak (0);
2299 } 2659 }
2300 2660
2301 /* return value handling - mostly like entersub */ 2661 /* return value handling - mostly like entersub */
2302 /* make sure we put something on the stack in scalar context */ 2662 /* make sure we put something on the stack in scalar context */
2303 if (GIMME_V == G_SCALAR) 2663 if (GIMME_V == G_SCALAR
2664 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2304 { 2665 {
2305 dSP; 2666 dSP;
2306 SV **bot = PL_stack_base + checkmark; 2667 SV **bot = PL_stack_base + checkmark;
2307 2668
2308 if (sp == bot) /* too few, push undef */ 2669 if (sp == bot) /* too few, push undef */
2309 bot [1] = &PL_sv_undef; 2670 bot [1] = &PL_sv_undef;
2310 else if (sp != bot + 1) /* too many, take last one */ 2671 else /* too many, take last one */
2311 bot [1] = *sp; 2672 bot [1] = *sp;
2312 2673
2313 SP = bot + 1; 2674 SP = bot + 1;
2314 2675
2315 PUTBACK; 2676 PUTBACK;
… …
2348 if (PL_op->op_flags & OPf_STACKED) 2709 if (PL_op->op_flags & OPf_STACKED)
2349 { 2710 {
2350 if (items > slf_arga) 2711 if (items > slf_arga)
2351 { 2712 {
2352 slf_arga = items; 2713 slf_arga = items;
2353 free (slf_argv); 2714 Safefree (slf_argv);
2354 slf_argv = malloc (slf_arga * sizeof (SV *)); 2715 New (0, slf_argv, slf_arga, SV *);
2355 } 2716 }
2356 2717
2357 slf_argc = items; 2718 slf_argc = items;
2358 2719
2359 for (i = 0; i < items; ++i) 2720 for (i = 0; i < items; ++i)
… …
2422{ 2783{
2423 PerlIOBuf base; 2784 PerlIOBuf base;
2424 NV next, every; 2785 NV next, every;
2425} PerlIOCede; 2786} PerlIOCede;
2426 2787
2427static IV 2788static IV ecb_cold
2428PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2789PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2429{ 2790{
2430 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2791 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2431 2792
2432 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2793 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2433 self->next = nvtime () + self->every; 2794 self->next = nvtime () + self->every;
2434 2795
2435 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2796 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2436} 2797}
2437 2798
2438static SV * 2799static SV * ecb_cold
2439PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2800PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2440{ 2801{
2441 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2802 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2442 2803
2443 return newSVnv (self->every); 2804 return newSVnv (self->every);
… …
2555 SvREFCNT_dec (cb); 2916 SvREFCNT_dec (cb);
2556 } 2917 }
2557} 2918}
2558 2919
2559static void 2920static void
2560coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2921coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2561{ 2922{
2562 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2923 /* call $sem->adjust (0) to possibly wake up some other waiters */
2563 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2924 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2564} 2925}
2565 2926
2566static int 2927static int
2567slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2928slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2568{ 2929{
2569 AV *av = (AV *)frame->data; 2930 AV *av = (AV *)frame->data;
2570 SV *count_sv = AvARRAY (av)[0]; 2931 SV *count_sv = AvARRAY (av)[0];
2932 SV *coro_hv = SvRV (coro_current);
2571 2933
2572 /* if we are about to throw, don't actually acquire the lock, just throw */ 2934 /* if we are about to throw, don't actually acquire the lock, just throw */
2573 if (CORO_THROW) 2935 if (CORO_THROW)
2574 return 0; 2936 return 0;
2575 else if (SvIVX (count_sv) > 0) 2937 else if (SvIVX (count_sv) > 0)
2576 { 2938 {
2577 SvSTATE_current->on_destroy = 0; 2939 frame->destroy = 0;
2578 2940
2579 if (acquire) 2941 if (acquire)
2580 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2942 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2581 else 2943 else
2582 coro_semaphore_adjust (aTHX_ av, 0); 2944 coro_semaphore_adjust (aTHX_ av, 0);
… …
2587 { 2949 {
2588 int i; 2950 int i;
2589 /* if we were woken up but can't down, we look through the whole */ 2951 /* if we were woken up but can't down, we look through the whole */
2590 /* waiters list and only add us if we aren't in there already */ 2952 /* waiters list and only add us if we aren't in there already */
2591 /* this avoids some degenerate memory usage cases */ 2953 /* this avoids some degenerate memory usage cases */
2592 2954 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2593 for (i = 1; i <= AvFILLp (av); ++i)
2594 if (AvARRAY (av)[i] == SvRV (coro_current)) 2955 if (AvARRAY (av)[i] == coro_hv)
2595 return 1; 2956 return 1;
2596 2957
2597 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2958 av_push (av, SvREFCNT_inc (coro_hv));
2598 return 1; 2959 return 1;
2599 } 2960 }
2600} 2961}
2601 2962
2602static int 2963static int
… …
2625 { 2986 {
2626 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2627 2988
2628 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2989 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2629 frame->prepare = prepare_schedule; 2990 frame->prepare = prepare_schedule;
2630
2631 /* to avoid race conditions when a woken-up coro gets terminated */ 2991 /* to avoid race conditions when a woken-up coro gets terminated */
2632 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2992 /* we arrange for a temporary on_destroy that calls adjust (0) */
2633 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2993 frame->destroy = coro_semaphore_destroy;
2634 } 2994 }
2635} 2995}
2636 2996
2637static void 2997static void
2638slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2998slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2720 { 3080 {
2721 SV *cb_cv = s_get_cv_croak (arg [1]); 3081 SV *cb_cv = s_get_cv_croak (arg [1]);
2722 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3082 av_push (av, SvREFCNT_inc_NN (cb_cv));
2723 3083
2724 if (SvIVX (AvARRAY (av)[0])) 3084 if (SvIVX (AvARRAY (av)[0]))
2725 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3085 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2726 3086
2727 frame->prepare = prepare_nop; 3087 frame->prepare = prepare_nop;
2728 frame->check = slf_check_nop; 3088 frame->check = slf_check_nop;
2729 } 3089 }
2730 else if (SvIVX (AvARRAY (av)[0])) 3090 else if (SvIVX (AvARRAY (av)[0]))
… …
2856 dSP; 3216 dSP;
2857 3217
2858 static SV *prio_cv; 3218 static SV *prio_cv;
2859 static SV *prio_sv; 3219 static SV *prio_sv;
2860 3220
2861 if (expect_false (!prio_cv)) 3221 if (ecb_expect_false (!prio_cv))
2862 { 3222 {
2863 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3223 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2864 prio_sv = newSViv (0); 3224 prio_sv = newSViv (0);
2865 } 3225 }
2866 3226
… …
2892 /* now call the AIO function - we assume our request is uncancelable */ 3252 /* now call the AIO function - we assume our request is uncancelable */
2893 PUTBACK; 3253 PUTBACK;
2894 call_sv ((SV *)req, G_VOID | G_DISCARD); 3254 call_sv ((SV *)req, G_VOID | G_DISCARD);
2895 } 3255 }
2896 3256
2897 /* now that the requets is going, we loop toll we have a result */ 3257 /* now that the request is going, we loop till we have a result */
2898 frame->data = (void *)state; 3258 frame->data = (void *)state;
2899 frame->prepare = prepare_schedule; 3259 frame->prepare = prepare_schedule;
2900 frame->check = slf_check_aio_req; 3260 frame->check = slf_check_aio_req;
2901} 3261}
2902 3262
… …
2972 } 3332 }
2973 3333
2974 return coro_sv; 3334 return coro_sv;
2975} 3335}
2976 3336
3337#ifndef __cplusplus
3338ecb_cold XS(boot_Coro__State);
3339#endif
3340
3341#if CORO_JIT
3342
3343static void ecb_noinline ecb_cold
3344pushav_3uv (pTHX_ UV a, UV b, UV c)
3345{
3346 dSP;
3347 AV *av = newAV ();
3348
3349 av_store (av, 2, newSVuv (c));
3350 av_store (av, 1, newSVuv (b));
3351 av_store (av, 0, newSVuv (a));
3352
3353 XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));
3354
3355 PUTBACK;
3356}
3357
3358static void ecb_noinline ecb_cold
3359jit_init (pTHX)
3360{
3361 dSP;
3362 SV *load, *save;
3363 char *map_base;
3364 char *load_ptr, *save_ptr;
3365 STRLEN load_len, save_len;
3366 int count;
3367
3368 PUSHMARK (SP);
3369 PUTBACK;
3370#define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type));
3371# include "state.h"
3372#undef VARx
3373 count = call_pv ("Coro::State::_jit", G_ARRAY);
3374 SPAGAIN;
3375
3376 save = POPs; save_ptr = SvPVbyte (save, save_len);
3377 load = POPs; load_ptr = SvPVbyte (load, load_len);
3378
3379 map_base = mmap (0, load_len + save_len + 16, PROT_EXEC | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
3380
3381 assert (("Coro: unable mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED));
3382
3383 load_perl_slots = (load_save_perl_slots_type)map_base;
3384 memcpy (map_base, load_ptr, load_len);
3385
3386 map_base += (load_len + 15) & ~15;
3387
3388 save_perl_slots = (load_save_perl_slots_type)map_base;
3389 memcpy (map_base, save_ptr, save_len);
3390}
3391
3392#endif
3393
2977MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3394MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2978 3395
2979PROTOTYPES: DISABLE 3396PROTOTYPES: DISABLE
2980 3397
2981BOOT: 3398BOOT:
… …
2985 coro_thx = PERL_GET_CONTEXT; 3402 coro_thx = PERL_GET_CONTEXT;
2986# endif 3403# endif
2987#endif 3404#endif
2988 BOOT_PAGESIZE; 3405 BOOT_PAGESIZE;
2989 3406
3407 /* perl defines these to check for existance first, but why it doesn't */
3408 /* just create them one at init time is not clear to me, except for */
3409 /* programs trying to delete them, but... */
3410 /* anyway, we declare this as invalid and make sure they are initialised here */
3411 DEFSV;
3412 ERRSV;
3413
2990 cctx_current = cctx_new_empty (); 3414 cctx_current = cctx_new_empty ();
2991 3415
2992 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3416 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2993 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3417 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2994 3418
… …
3033 coroapi.prepare_nop = prepare_nop; 3457 coroapi.prepare_nop = prepare_nop;
3034 coroapi.prepare_schedule = prepare_schedule; 3458 coroapi.prepare_schedule = prepare_schedule;
3035 coroapi.prepare_cede = prepare_cede; 3459 coroapi.prepare_cede = prepare_cede;
3036 coroapi.prepare_cede_notself = prepare_cede_notself; 3460 coroapi.prepare_cede_notself = prepare_cede_notself;
3037 3461
3038 { 3462 time_init (aTHX);
3039 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3040
3041 if (!svp) croak ("Time::HiRes is required");
3042 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3043
3044 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3045
3046 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3047 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3048 }
3049 3463
3050 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3464 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3465#if CORO_JIT
3466 PUTBACK;
3467 require_pv ("Coro/jit-" CORO_JIT_TYPE ".pl");
3468 jit_init (aTHX);
3469 perl_eval_pv ("undef &Coro::State::_jit", 1);
3470 SPAGAIN;
3471#endif
3051} 3472}
3052 3473
3053SV * 3474SV *
3054new (SV *klass, ...) 3475new (SV *klass, ...)
3055 ALIAS: 3476 ALIAS:
… …
3062void 3483void
3063transfer (...) 3484transfer (...)
3064 PROTOTYPE: $$ 3485 PROTOTYPE: $$
3065 CODE: 3486 CODE:
3066 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3487 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3067
3068bool
3069_destroy (SV *coro_sv)
3070 CODE:
3071 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3072 OUTPUT:
3073 RETVAL
3074 3488
3075void 3489void
3076_exit (int code) 3490_exit (int code)
3077 PROTOTYPE: $ 3491 PROTOTYPE: $
3078 CODE: 3492 CODE:
… …
3154 CODE: 3568 CODE:
3155{ 3569{
3156 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3570 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3157 { 3571 {
3158 struct coro *current = SvSTATE_current; 3572 struct coro *current = SvSTATE_current;
3573 struct CoroSLF slf_save;
3159 3574
3160 if (current != coro) 3575 if (current != coro)
3161 { 3576 {
3162 PUTBACK; 3577 PUTBACK;
3163 save_perl (aTHX_ current); 3578 save_perl (aTHX_ current);
3164 load_perl (aTHX_ coro); 3579 load_perl (aTHX_ coro);
3580 /* the coro is most likely in an active SLF call.
3581 * while not strictly required (the code we execute is
3582 * not allowed to call any SLF functions), it's cleaner
3583 * to reinitialise the slf_frame and restore it later.
3584 * This might one day allow us to actually do SLF calls
3585 * from code executed here.
3586 */
3587 slf_save = slf_frame;
3588 slf_frame.prepare = 0;
3165 SPAGAIN; 3589 SPAGAIN;
3166 } 3590 }
3167 3591
3168 PUSHSTACK; 3592 PUSHSTACK;
3169 3593
… …
3179 SPAGAIN; 3603 SPAGAIN;
3180 3604
3181 if (current != coro) 3605 if (current != coro)
3182 { 3606 {
3183 PUTBACK; 3607 PUTBACK;
3608 slf_frame = slf_save;
3184 save_perl (aTHX_ coro); 3609 save_perl (aTHX_ coro);
3185 load_perl (aTHX_ current); 3610 load_perl (aTHX_ current);
3186 SPAGAIN; 3611 SPAGAIN;
3187 } 3612 }
3188 } 3613 }
… …
3193 PROTOTYPE: $ 3618 PROTOTYPE: $
3194 ALIAS: 3619 ALIAS:
3195 is_ready = CF_READY 3620 is_ready = CF_READY
3196 is_running = CF_RUNNING 3621 is_running = CF_RUNNING
3197 is_new = CF_NEW 3622 is_new = CF_NEW
3198 is_destroyed = CF_DESTROYED 3623 is_destroyed = CF_ZOMBIE
3624 is_zombie = CF_ZOMBIE
3199 is_suspended = CF_SUSPENDED 3625 is_suspended = CF_SUSPENDED
3200 CODE: 3626 CODE:
3201 RETVAL = boolSV (coro->flags & ix); 3627 RETVAL = boolSV (coro->flags & ix);
3202 OUTPUT: 3628 OUTPUT:
3203 RETVAL 3629 RETVAL
3204 3630
3205void 3631void
3206throw (Coro::State self, SV *throw = &PL_sv_undef) 3632throw (Coro::State self, SV *exception = &PL_sv_undef)
3207 PROTOTYPE: $;$ 3633 PROTOTYPE: $;$
3208 CODE: 3634 CODE:
3209{ 3635{
3210 struct coro *current = SvSTATE_current; 3636 struct coro *current = SvSTATE_current;
3211 SV **throwp = self == current ? &CORO_THROW : &self->except; 3637 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3212 SvREFCNT_dec (*throwp); 3638 SvREFCNT_dec (*exceptionp);
3213 SvGETMAGIC (throw); 3639 SvGETMAGIC (exception);
3214 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3640 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3215} 3641}
3216 3642
3217void 3643void
3218api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3644api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3219 PROTOTYPE: $;$ 3645 PROTOTYPE: $;$
… …
3274 3700
3275void 3701void
3276cancel (Coro::State self) 3702cancel (Coro::State self)
3277 CODE: 3703 CODE:
3278 coro_state_destroy (aTHX_ self); 3704 coro_state_destroy (aTHX_ self);
3279 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3280
3281 3705
3282SV * 3706SV *
3283enable_times (int enabled = enable_times) 3707enable_times (int enabled = enable_times)
3284 CODE: 3708 CODE:
3285{ 3709{
… …
3300times (Coro::State self) 3724times (Coro::State self)
3301 PPCODE: 3725 PPCODE:
3302{ 3726{
3303 struct coro *current = SvSTATE (coro_current); 3727 struct coro *current = SvSTATE (coro_current);
3304 3728
3305 if (expect_false (current == self)) 3729 if (ecb_expect_false (current == self))
3306 { 3730 {
3307 coro_times_update (); 3731 coro_times_update ();
3308 coro_times_add (SvSTATE (coro_current)); 3732 coro_times_add (SvSTATE (coro_current));
3309 } 3733 }
3310 3734
3311 EXTEND (SP, 2); 3735 EXTEND (SP, 2);
3312 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3736 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3313 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3737 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3314 3738
3315 if (expect_false (current == self)) 3739 if (ecb_expect_false (current == self))
3316 coro_times_sub (SvSTATE (coro_current)); 3740 coro_times_sub (SvSTATE (coro_current));
3317} 3741}
3742
3743void
3744swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3745 CODE:
3746{
3747 struct coro *current = SvSTATE_current;
3748
3749 if (current == coro)
3750 SWAP_SVS (current);
3751
3752 if (!coro->swap_sv)
3753 coro->swap_sv = newAV ();
3754
3755 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3756 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3757
3758 if (current == coro)
3759 SWAP_SVS (current);
3760}
3761
3318 3762
3319MODULE = Coro::State PACKAGE = Coro 3763MODULE = Coro::State PACKAGE = Coro
3320 3764
3321BOOT: 3765BOOT:
3322{ 3766{
3323 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3767 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3324 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3768 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3325 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3769 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3326 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3327 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3770 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3328 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3771 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3329 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3772 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3330 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3773 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3331 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3774 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
… …
3365SV * 3808SV *
3366async (...) 3809async (...)
3367 PROTOTYPE: &@ 3810 PROTOTYPE: &@
3368 CODE: 3811 CODE:
3369 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); 3812 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3370 api_ready (RETVAL); 3813 api_ready (aTHX_ RETVAL);
3371 OUTPUT: 3814 OUTPUT:
3372 RETVAL 3815 RETVAL
3816
3817void
3818_destroy (Coro::State coro)
3819 CODE:
3820 /* used by the manager thread */
3821 coro_state_destroy (aTHX_ coro);
3822
3823void
3824on_destroy (Coro::State coro, SV *cb)
3825 CODE:
3826 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3827
3828void
3829join (...)
3830 CODE:
3831 CORO_EXECUTE_SLF_XS (slf_init_join);
3373 3832
3374void 3833void
3375terminate (...) 3834terminate (...)
3376 CODE: 3835 CODE:
3377 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3836 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3837
3838void
3839cancel (...)
3840 CODE:
3841 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3842
3843int
3844safe_cancel (Coro::State self, ...)
3845 C_ARGS: aTHX_ self, &ST (1), items - 1
3378 3846
3379void 3847void
3380schedule (...) 3848schedule (...)
3381 CODE: 3849 CODE:
3382 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3850 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3779 { 4247 {
3780 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4248 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3781 coro_old_pp_sselect = 0; 4249 coro_old_pp_sselect = 0;
3782 } 4250 }
3783 4251
3784

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