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Comparing Coro/Coro/State.xs (file contents):
Revision 1.323 by root, Sat Nov 22 06:03:10 2008 UTC vs.
Revision 1.392 by root, Fri Apr 29 15:43:27 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
6#include "EXTERN.h" 11#include "EXTERN.h"
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 "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
16 21
17#ifdef WIN32 22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
25
26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
18# undef setjmp 28# undef setjmp
19# undef longjmp 29# undef longjmp
20# undef _exit 30# undef _exit
21# define setjmp _setjmp /* deep magic */ 31# define setjmp _setjmp /* deep magic */
22#else 32#else
… …
51#endif 61#endif
52 62
53/* the maximum number of idle cctx that will be pooled */ 63/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 64static int cctx_max_idle = 4;
55 65
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 66#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 67# undef CORO_STACKGUARD
117#endif 68#endif
118 69
119#ifndef CORO_STACKGUARD 70#ifndef CORO_STACKGUARD
… …
133#else 84#else
134# define dSTACKLEVEL volatile void *stacklevel 85# define dSTACKLEVEL volatile void *stacklevel
135# define STACKLEVEL ((void *)&stacklevel) 86# define STACKLEVEL ((void *)&stacklevel)
136#endif 87#endif
137 88
138#define IN_DESTRUCT (PL_main_cv == Nullcv) 89#define IN_DESTRUCT PL_dirty
139 90
140#if __GNUC__ >= 3 91#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x) 92# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value)) 93# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline 94# define INLINE static inline
144#else 95#else
145# define attribute(x) 96# define attribute(x)
146# define expect(expr,value) (expr) 97# define expect(expr,value) (expr)
147# define INLINE static 98# define INLINE static
… …
159# if CORO_PTHREAD 110# if CORO_PTHREAD
160static void *coro_thx; 111static void *coro_thx;
161# endif 112# endif
162#endif 113#endif
163 114
115#ifdef __linux
116# include <time.h> /* for timespec */
117# include <syscall.h> /* for SYS_* */
118# ifdef SYS_clock_gettime
119# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
120# define CORO_CLOCK_MONOTONIC 1
121# define CORO_CLOCK_THREAD_CPUTIME_ID 3
122# endif
123#endif
124
164static double (*nvtime)(); /* so why doesn't it take void? */ 125static double (*nvtime)(); /* so why doesn't it take void? */
126static void (*u2time)(pTHX_ UV ret[2]);
165 127
166/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
169 131
… …
175static HV *coro_state_stash, *coro_stash; 137static HV *coro_state_stash, *coro_stash;
176static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 138static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
177 139
178static AV *av_destroy; /* destruction queue */ 140static AV *av_destroy; /* destruction queue */
179static SV *sv_manager; /* the manager coro */ 141static SV *sv_manager; /* the manager coro */
142static SV *sv_idle; /* $Coro::idle */
180 143
181static GV *irsgv; /* $/ */ 144static GV *irsgv; /* $/ */
182static GV *stdoutgv; /* *STDOUT */ 145static GV *stdoutgv; /* *STDOUT */
183static SV *rv_diehook; 146static SV *rv_diehook;
184static SV *rv_warnhook; 147static SV *rv_warnhook;
… …
189static SV *sv_pool_size; 152static SV *sv_pool_size;
190static SV *sv_async_pool_idle; /* description string */ 153static SV *sv_async_pool_idle; /* description string */
191static AV *av_async_pool; /* idle pool */ 154static AV *av_async_pool; /* idle pool */
192static SV *sv_Coro; /* class string */ 155static SV *sv_Coro; /* class string */
193static CV *cv_pool_handler; 156static CV *cv_pool_handler;
194static CV *cv_coro_state_new;
195 157
196/* Coro::AnyEvent */ 158/* Coro::AnyEvent */
197static SV *sv_activity; 159static SV *sv_activity;
160
161/* enable processtime/realtime profiling */
162static char enable_times;
163typedef U32 coro_ts[2];
164static coro_ts time_real, time_cpu;
165static char times_valid;
198 166
199static struct coro_cctx *cctx_first; 167static struct coro_cctx *cctx_first;
200static int cctx_count, cctx_idle; 168static int cctx_count, cctx_idle;
201 169
202enum { 170enum {
… …
237enum { 205enum {
238 CF_RUNNING = 0x0001, /* coroutine is running */ 206 CF_RUNNING = 0x0001, /* coroutine is running */
239 CF_READY = 0x0002, /* coroutine is ready */ 207 CF_READY = 0x0002, /* coroutine is ready */
240 CF_NEW = 0x0004, /* has never been switched to */ 208 CF_NEW = 0x0004, /* has never been switched to */
241 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 209 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
210 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
242}; 211};
243 212
244/* the structure where most of the perl state is stored, overlaid on the cxstack */ 213/* the structure where most of the perl state is stored, overlaid on the cxstack */
245typedef struct 214typedef struct
246{ 215{
247 SV *defsv; 216 SV *defsv;
248 AV *defav; 217 AV *defav;
249 SV *errsv; 218 SV *errsv;
250 SV *irsgv; 219 SV *irsgv;
220 HV *hinthv;
251#define VAR(name,type) type name; 221#define VAR(name,type) type name;
252# include "state.h" 222# include "state.h"
253#undef VAR 223#undef VAR
254} perl_slots; 224} perl_slots;
255 225
… …
257 227
258/* this is a structure representing a perl-level coroutine */ 228/* this is a structure representing a perl-level coroutine */
259struct coro { 229struct coro {
260 /* the C coroutine allocated to this perl coroutine, if any */ 230 /* the C coroutine allocated to this perl coroutine, if any */
261 coro_cctx *cctx; 231 coro_cctx *cctx;
232
233 /* ready queue */
234 struct coro *next_ready;
262 235
263 /* state data */ 236 /* state data */
264 struct CoroSLF slf_frame; /* saved slf frame */ 237 struct CoroSLF slf_frame; /* saved slf frame */
265 AV *mainstack; 238 AV *mainstack;
266 perl_slots *slot; /* basically the saved sp */ 239 perl_slots *slot; /* basically the saved sp */
… …
268 CV *startcv; /* the CV to execute */ 241 CV *startcv; /* the CV to execute */
269 AV *args; /* data associated with this coroutine (initial args) */ 242 AV *args; /* data associated with this coroutine (initial args) */
270 int refcnt; /* coroutines are refcounted, yes */ 243 int refcnt; /* coroutines are refcounted, yes */
271 int flags; /* CF_ flags */ 244 int flags; /* CF_ flags */
272 HV *hv; /* the perl hash associated with this coro, if any */ 245 HV *hv; /* the perl hash associated with this coro, if any */
273 void (*on_destroy)(pTHX_ struct coro *coro); 246 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
274 247
275 /* statistics */ 248 /* statistics */
276 int usecount; /* number of transfers to this coro */ 249 int usecount; /* number of transfers to this coro */
277 250
278 /* coro process data */ 251 /* coro process data */
… …
283 /* async_pool */ 256 /* async_pool */
284 SV *saved_deffh; 257 SV *saved_deffh;
285 SV *invoke_cb; 258 SV *invoke_cb;
286 AV *invoke_av; 259 AV *invoke_av;
287 260
261 /* on_enter/on_leave */
262 AV *on_enter;
263 AV *on_leave;
264
265 /* swap_sv */
266 AV *swap_sv;
267
268 /* times */
269 coro_ts t_cpu, t_real;
270
288 /* linked list */ 271 /* linked list */
289 struct coro *next, *prev; 272 struct coro *next, *prev;
290}; 273};
291 274
292typedef struct coro *Coro__State; 275typedef struct coro *Coro__State;
… …
297/* the mainr easonw e don't support windows process emulation */ 280/* the mainr easonw e don't support windows process emulation */
298static struct CoroSLF slf_frame; /* the current slf frame */ 281static struct CoroSLF slf_frame; /* the current slf frame */
299 282
300/** Coro ********************************************************************/ 283/** Coro ********************************************************************/
301 284
302#define PRIO_MAX 3 285#define CORO_PRIO_MAX 3
303#define PRIO_HIGH 1 286#define CORO_PRIO_HIGH 1
304#define PRIO_NORMAL 0 287#define CORO_PRIO_NORMAL 0
305#define PRIO_LOW -1 288#define CORO_PRIO_LOW -1
306#define PRIO_IDLE -3 289#define CORO_PRIO_IDLE -3
307#define PRIO_MIN -4 290#define CORO_PRIO_MIN -4
308 291
309/* for Coro.pm */ 292/* for Coro.pm */
310static SV *coro_current; 293static SV *coro_current;
311static SV *coro_readyhook; 294static SV *coro_readyhook;
312static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 295static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
313static CV *cv_coro_run, *cv_coro_terminate; 296static CV *cv_coro_run, *cv_coro_terminate;
314static struct coro *coro_first; 297static struct coro *coro_first;
315#define coro_nready coroapi.nready 298#define coro_nready coroapi.nready
299
300/** Coro::Select ************************************************************/
301
302static OP *(*coro_old_pp_sselect) (pTHX);
303static SV *coro_select_select;
304
305/* horrible hack, but if it works... */
306static OP *
307coro_pp_sselect (pTHX)
308{
309 dSP;
310 PUSHMARK (SP - 4); /* fake argument list */
311 XPUSHs (coro_select_select);
312 PUTBACK;
313
314 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
315 PL_op->op_flags |= OPf_STACKED;
316 PL_op->op_private = 0;
317 return PL_ppaddr [OP_ENTERSUB](aTHX);
318}
319
320/** time stuff **************************************************************/
321
322#ifdef HAS_GETTIMEOFDAY
323
324static void
325coro_u2time (pTHX_ UV ret[2])
326{
327 struct timeval tv;
328 gettimeofday (&tv, 0);
329
330 ret [0] = tv.tv_sec;
331 ret [1] = tv.tv_usec;
332}
333
334static double
335coro_nvtime ()
336{
337 struct timeval tv;
338 gettimeofday (&tv, 0);
339
340 return tv.tv_sec + tv.tv_usec * 1e-6;
341}
342
343static void
344time_init (pTHX)
345{
346 nvtime = coro_nvtime;
347 u2time = coro_u2time;
348}
349
350#else
351
352static void
353time_init (pTHX)
354{
355 SV **svp;
356
357 require_pv ("Time/HiRes.pm");
358
359 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
360
361 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
362 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
363
364 nvtime = INT2PTR (double (*)(), SvIV (*svp));
365
366 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
367 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
368}
369
370#endif
316 371
317/** lowlevel stuff **********************************************************/ 372/** lowlevel stuff **********************************************************/
318 373
319static SV * 374static SV *
320coro_get_sv (pTHX_ const char *name, int create) 375coro_get_sv (pTHX_ const char *name, int create)
… …
344 get_hv (name, create); 399 get_hv (name, create);
345#endif 400#endif
346 return get_hv (name, create); 401 return get_hv (name, create);
347} 402}
348 403
349/* may croak */ 404INLINE void
350INLINE CV * 405coro_times_update ()
351coro_sv_2cv (pTHX_ SV *sv)
352{ 406{
407#ifdef coro_clock_gettime
408 struct timespec ts;
409
410 ts.tv_sec = ts.tv_nsec = 0;
411 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
412 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
413
414 ts.tv_sec = ts.tv_nsec = 0;
415 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
416 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
417#else
418 dTHX;
419 UV tv[2];
420
421 u2time (aTHX_ tv);
422 time_real [0] = tv [0];
423 time_real [1] = tv [1] * 1000;
424#endif
425}
426
427INLINE void
428coro_times_add (struct coro *c)
429{
430 c->t_real [1] += time_real [1];
431 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
432 c->t_real [0] += time_real [0];
433
434 c->t_cpu [1] += time_cpu [1];
435 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
436 c->t_cpu [0] += time_cpu [0];
437}
438
439INLINE void
440coro_times_sub (struct coro *c)
441{
442 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
443 c->t_real [1] -= time_real [1];
444 c->t_real [0] -= time_real [0];
445
446 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
447 c->t_cpu [1] -= time_cpu [1];
448 c->t_cpu [0] -= time_cpu [0];
449}
450
451/*****************************************************************************/
452/* magic glue */
453
454#define CORO_MAGIC_type_cv 26
455#define CORO_MAGIC_type_state PERL_MAGIC_ext
456
457#define CORO_MAGIC_NN(sv, type) \
458 (expect_true (SvMAGIC (sv)->mg_type == type) \
459 ? SvMAGIC (sv) \
460 : mg_find (sv, type))
461
462#define CORO_MAGIC(sv, type) \
463 (expect_true (SvMAGIC (sv)) \
464 ? CORO_MAGIC_NN (sv, type) \
465 : 0)
466
467#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
468#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
469
470INLINE struct coro *
471SvSTATE_ (pTHX_ SV *coro)
472{
353 HV *st; 473 HV *stash;
354 GV *gvp; 474 MAGIC *mg;
355 return sv_2cv (sv, &st, &gvp, 0); 475
476 if (SvROK (coro))
477 coro = SvRV (coro);
478
479 if (expect_false (SvTYPE (coro) != SVt_PVHV))
480 croak ("Coro::State object required");
481
482 stash = SvSTASH (coro);
483 if (expect_false (stash != coro_stash && stash != coro_state_stash))
484 {
485 /* very slow, but rare, check */
486 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
487 croak ("Coro::State object required");
488 }
489
490 mg = CORO_MAGIC_state (coro);
491 return (struct coro *)mg->mg_ptr;
356} 492}
493
494#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
495
496/* faster than SvSTATE, but expects a coroutine hv */
497#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
498#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
499
500/*****************************************************************************/
501/* padlist management and caching */
357 502
358static AV * 503static AV *
359coro_derive_padlist (pTHX_ CV *cv) 504coro_derive_padlist (pTHX_ CV *cv)
360{ 505{
361 AV *padlist = CvPADLIST (cv); 506 AV *padlist = CvPADLIST (cv);
… …
369 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 514 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
370#endif 515#endif
371 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 516 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
372 --AvFILLp (padlist); 517 --AvFILLp (padlist);
373 518
374 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 519 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
375 av_store (newpadlist, 1, (SV *)newpad); 520 av_store (newpadlist, 1, (SV *)newpad);
376 521
377 return newpadlist; 522 return newpadlist;
378} 523}
379 524
380static void 525static void
381free_padlist (pTHX_ AV *padlist) 526free_padlist (pTHX_ AV *padlist)
382{ 527{
383 /* may be during global destruction */ 528 /* may be during global destruction */
384 if (SvREFCNT (padlist)) 529 if (!IN_DESTRUCT)
385 { 530 {
386 I32 i = AvFILLp (padlist); 531 I32 i = AvFILLp (padlist);
387 while (i >= 0) 532
533 while (i > 0) /* special-case index 0 */
388 { 534 {
389 SV **svp = av_fetch (padlist, i--, FALSE); 535 /* we try to be extra-careful here */
390 if (svp) 536 AV *av = (AV *)AvARRAY (padlist)[i--];
391 { 537 I32 j = AvFILLp (av);
392 SV *sv; 538
393 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 539 while (j >= 0)
540 SvREFCNT_dec (AvARRAY (av)[j--]);
541
542 AvFILLp (av) = -1;
394 SvREFCNT_dec (sv); 543 SvREFCNT_dec (av);
395
396 SvREFCNT_dec (*svp);
397 }
398 } 544 }
399 545
546 SvREFCNT_dec (AvARRAY (padlist)[0]);
547
548 AvFILLp (padlist) = -1;
400 SvREFCNT_dec ((SV*)padlist); 549 SvREFCNT_dec ((SV*)padlist);
401 } 550 }
402} 551}
403 552
404static int 553static int
405coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 554coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
406{ 555{
407 AV *padlist; 556 AV *padlist;
408 AV *av = (AV *)mg->mg_obj; 557 AV *av = (AV *)mg->mg_obj;
558
559 /* perl manages to free our internal AV and _then_ call us */
560 if (IN_DESTRUCT)
561 return 0;
409 562
410 /* casting is fun. */ 563 /* casting is fun. */
411 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 564 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
412 free_padlist (aTHX_ padlist); 565 free_padlist (aTHX_ padlist);
413 566
414 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 567 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
415 568
416 return 0; 569 return 0;
417} 570}
418
419#define CORO_MAGIC_type_cv 26
420#define CORO_MAGIC_type_state PERL_MAGIC_ext
421 571
422static MGVTBL coro_cv_vtbl = { 572static MGVTBL coro_cv_vtbl = {
423 0, 0, 0, 0, 573 0, 0, 0, 0,
424 coro_cv_free 574 coro_cv_free
425}; 575};
426
427#define CORO_MAGIC_NN(sv, type) \
428 (expect_true (SvMAGIC (sv)->mg_type == type) \
429 ? SvMAGIC (sv) \
430 : mg_find (sv, type))
431
432#define CORO_MAGIC(sv, type) \
433 (expect_true (SvMAGIC (sv)) \
434 ? CORO_MAGIC_NN (sv, type) \
435 : 0)
436
437#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
438#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
439
440INLINE struct coro *
441SvSTATE_ (pTHX_ SV *coro)
442{
443 HV *stash;
444 MAGIC *mg;
445
446 if (SvROK (coro))
447 coro = SvRV (coro);
448
449 if (expect_false (SvTYPE (coro) != SVt_PVHV))
450 croak ("Coro::State object required");
451
452 stash = SvSTASH (coro);
453 if (expect_false (stash != coro_stash && stash != coro_state_stash))
454 {
455 /* very slow, but rare, check */
456 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
457 croak ("Coro::State object required");
458 }
459
460 mg = CORO_MAGIC_state (coro);
461 return (struct coro *)mg->mg_ptr;
462}
463
464#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
465
466/* faster than SvSTATE, but expects a coroutine hv */
467#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
468#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
469 576
470/* the next two functions merely cache the padlists */ 577/* the next two functions merely cache the padlists */
471static void 578static void
472get_padlist (pTHX_ CV *cv) 579get_padlist (pTHX_ CV *cv)
473{ 580{
… …
501 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 608 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
502 609
503 av = (AV *)mg->mg_obj; 610 av = (AV *)mg->mg_obj;
504 611
505 if (expect_false (AvFILLp (av) >= AvMAX (av))) 612 if (expect_false (AvFILLp (av) >= AvMAX (av)))
506 av_extend (av, AvMAX (av) + 1); 613 av_extend (av, AvFILLp (av) + 1);
507 614
508 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 615 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
509} 616}
510 617
511/** load & save, init *******************************************************/ 618/** load & save, init *******************************************************/
619
620/* swap sv heads, at least logically */
621static void
622swap_svs (pTHX_ Coro__State c)
623{
624 int i;
625
626 for (i = 0; i <= AvFILLp (c->swap_sv); )
627 {
628 SV *a = AvARRAY (c->swap_sv)[i++];
629 SV *b = AvARRAY (c->swap_sv)[i++];
630
631 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
632 SV tmp;
633
634 /* swap sv_any */
635 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
636
637 /* swap sv_flags */
638 SvFLAGS (&tmp) = SvFLAGS (a);
639 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
640 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
641
642#if PERL_VERSION_ATLEAST (5,10,0)
643 /* perl 5.10 complicates this _quite_ a bit, but it also is
644 * much faster, so no quarrels here. alternatively, we could
645 * sv_upgrade to avoid this.
646 */
647 {
648 /* swap sv_u */
649 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
650
651 /* if SvANY points to the head, we need to adjust the pointers,
652 * as the pointer for a still points to b, and maybe vice versa.
653 */
654 #define svany_in_head(type) \
655 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
656
657 if (svany_in_head (SvTYPE (a)))
658 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
659
660 if (svany_in_head (SvTYPE (b)))
661 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
662 }
663#endif
664 }
665}
666
667#define SWAP_SVS(coro) \
668 if (expect_false ((coro)->swap_sv)) \
669 swap_svs (aTHX_ (coro))
670
671static void
672on_enterleave_call (pTHX_ SV *cb);
512 673
513static void 674static void
514load_perl (pTHX_ Coro__State c) 675load_perl (pTHX_ Coro__State c)
515{ 676{
516 perl_slots *slot = c->slot; 677 perl_slots *slot = c->slot;
517 c->slot = 0; 678 c->slot = 0;
518 679
519 PL_mainstack = c->mainstack; 680 PL_mainstack = c->mainstack;
520 681
521 GvSV (PL_defgv) = slot->defsv; 682 GvSV (PL_defgv) = slot->defsv;
522 GvAV (PL_defgv) = slot->defav; 683 GvAV (PL_defgv) = slot->defav;
523 GvSV (PL_errgv) = slot->errsv; 684 GvSV (PL_errgv) = slot->errsv;
524 GvSV (irsgv) = slot->irsgv; 685 GvSV (irsgv) = slot->irsgv;
686 GvHV (PL_hintgv) = slot->hinthv;
525 687
526 #define VAR(name,type) PL_ ## name = slot->name; 688 #define VAR(name,type) PL_ ## name = slot->name;
527 # include "state.h" 689 # include "state.h"
528 #undef VAR 690 #undef VAR
529 691
… …
543 PUTBACK; 705 PUTBACK;
544 } 706 }
545 707
546 slf_frame = c->slf_frame; 708 slf_frame = c->slf_frame;
547 CORO_THROW = c->except; 709 CORO_THROW = c->except;
710
711 if (expect_false (enable_times))
712 {
713 if (expect_false (!times_valid))
714 coro_times_update ();
715
716 coro_times_sub (c);
717 }
718
719 if (expect_false (c->on_enter))
720 {
721 int i;
722
723 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
724 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
725 }
726
727 SWAP_SVS (c);
548} 728}
549 729
550static void 730static void
551save_perl (pTHX_ Coro__State c) 731save_perl (pTHX_ Coro__State c)
552{ 732{
733 SWAP_SVS (c);
734
735 if (expect_false (c->on_leave))
736 {
737 int i;
738
739 for (i = AvFILLp (c->on_leave); i >= 0; --i)
740 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
741 }
742
743 times_valid = 0;
744
745 if (expect_false (enable_times))
746 {
747 coro_times_update (); times_valid = 1;
748 coro_times_add (c);
749 }
750
553 c->except = CORO_THROW; 751 c->except = CORO_THROW;
554 c->slf_frame = slf_frame; 752 c->slf_frame = slf_frame;
555 753
556 { 754 {
557 dSP; 755 dSP;
… …
570 { 768 {
571 while (expect_true (cxix >= 0)) 769 while (expect_true (cxix >= 0))
572 { 770 {
573 PERL_CONTEXT *cx = &ccstk[cxix--]; 771 PERL_CONTEXT *cx = &ccstk[cxix--];
574 772
575 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 773 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
576 { 774 {
577 CV *cv = cx->blk_sub.cv; 775 CV *cv = cx->blk_sub.cv;
578 776
579 if (expect_true (CvDEPTH (cv))) 777 if (expect_true (CvDEPTH (cv)))
580 { 778 {
… …
604 /* we manually unroll here, as usually 2 slots is enough */ 802 /* we manually unroll here, as usually 2 slots is enough */
605 if (SLOT_COUNT >= 1) CXINC; 803 if (SLOT_COUNT >= 1) CXINC;
606 if (SLOT_COUNT >= 2) CXINC; 804 if (SLOT_COUNT >= 2) CXINC;
607 if (SLOT_COUNT >= 3) CXINC; 805 if (SLOT_COUNT >= 3) CXINC;
608 { 806 {
609 int i; 807 unsigned int i;
610 for (i = 3; i < SLOT_COUNT; ++i) 808 for (i = 3; i < SLOT_COUNT; ++i)
611 CXINC; 809 CXINC;
612 } 810 }
613 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 811 cxstack_ix -= SLOT_COUNT; /* undo allocation */
614 812
615 c->mainstack = PL_mainstack; 813 c->mainstack = PL_mainstack;
616 814
617 { 815 {
618 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 816 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
619 817
620 slot->defav = GvAV (PL_defgv); 818 slot->defav = GvAV (PL_defgv);
621 slot->defsv = DEFSV; 819 slot->defsv = DEFSV;
622 slot->errsv = ERRSV; 820 slot->errsv = ERRSV;
623 slot->irsgv = GvSV (irsgv); 821 slot->irsgv = GvSV (irsgv);
822 slot->hinthv = GvHV (PL_hintgv);
624 823
625 #define VAR(name,type) slot->name = PL_ ## name; 824 #define VAR(name,type) slot->name = PL_ ## name;
626 # include "state.h" 825 # include "state.h"
627 #undef VAR 826 #undef VAR
628 } 827 }
… …
755#endif 954#endif
756 955
757/* 956/*
758 * This overrides the default magic get method of %SIG elements. 957 * This overrides the default magic get method of %SIG elements.
759 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 958 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
760 * and instead of tryign to save and restore the hash elements, we just provide 959 * and instead of trying to save and restore the hash elements, we just provide
761 * readback here. 960 * readback here.
762 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
763 * not expecting this to actually change the hook. This is a potential problem
764 * when a schedule happens then, but we ignore this.
765 */ 961 */
766static int 962static int
767coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 963coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
768{ 964{
769 const char *s = MgPV_nolen_const (mg); 965 const char *s = MgPV_nolen_const (mg);
… …
822 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1018 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
823 1019
824 if (svp) 1020 if (svp)
825 { 1021 {
826 SV *old = *svp; 1022 SV *old = *svp;
827 *svp = newSVsv (sv); 1023 *svp = SvOK (sv) ? newSVsv (sv) : 0;
828 SvREFCNT_dec (old); 1024 SvREFCNT_dec (old);
829 return 0; 1025 return 0;
830 } 1026 }
831 } 1027 }
832 1028
… …
850slf_check_repeat (pTHX_ struct CoroSLF *frame) 1046slf_check_repeat (pTHX_ struct CoroSLF *frame)
851{ 1047{
852 return 1; 1048 return 1;
853} 1049}
854 1050
855static UNOP coro_setup_op; 1051static UNOP init_perl_op;
856 1052
857static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1053static void NOINLINE /* noinline to keep it out of the transfer fast path */
858coro_setup (pTHX_ struct coro *coro) 1054init_perl (pTHX_ struct coro *coro)
859{ 1055{
860 /* 1056 /*
861 * emulate part of the perl startup here. 1057 * emulate part of the perl startup here.
862 */ 1058 */
863 coro_init_stacks (aTHX); 1059 coro_init_stacks (aTHX);
864 1060
865 PL_runops = RUNOPS_DEFAULT; 1061 PL_runops = RUNOPS_DEFAULT;
866 PL_curcop = &PL_compiling; 1062 PL_curcop = &PL_compiling;
867 PL_in_eval = EVAL_NULL; 1063 PL_in_eval = EVAL_NULL;
868 PL_comppad = 0; 1064 PL_comppad = 0;
1065 PL_comppad_name = 0;
1066 PL_comppad_name_fill = 0;
1067 PL_comppad_name_floor = 0;
869 PL_curpm = 0; 1068 PL_curpm = 0;
870 PL_curpad = 0; 1069 PL_curpad = 0;
871 PL_localizing = 0; 1070 PL_localizing = 0;
872 PL_dirty = 0;
873 PL_restartop = 0; 1071 PL_restartop = 0;
874#if PERL_VERSION_ATLEAST (5,10,0) 1072#if PERL_VERSION_ATLEAST (5,10,0)
875 PL_parser = 0; 1073 PL_parser = 0;
876#endif 1074#endif
1075 PL_hints = 0;
877 1076
878 /* recreate the die/warn hooks */ 1077 /* recreate the die/warn hooks */
879 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1078 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
880 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1079 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
881 1080
882 GvSV (PL_defgv) = newSV (0); 1081 GvSV (PL_defgv) = newSV (0);
883 GvAV (PL_defgv) = coro->args; coro->args = 0; 1082 GvAV (PL_defgv) = coro->args; coro->args = 0;
884 GvSV (PL_errgv) = newSV (0); 1083 GvSV (PL_errgv) = newSV (0);
885 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1084 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1085 GvHV (PL_hintgv) = 0;
886 PL_rs = newSVsv (GvSV (irsgv)); 1086 PL_rs = newSVsv (GvSV (irsgv));
887 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1087 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
888 1088
889 { 1089 {
890 dSP; 1090 dSP;
… …
907 */ 1107 */
908 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1108 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
909 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1109 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
910 1110
911 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1111 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
912 coro_setup_op.op_next = PL_op; 1112 init_perl_op.op_next = PL_op;
913 coro_setup_op.op_type = OP_ENTERSUB; 1113 init_perl_op.op_type = OP_ENTERSUB;
914 coro_setup_op.op_ppaddr = pp_slf; 1114 init_perl_op.op_ppaddr = pp_slf;
915 /* no flags etc. required, as an init function won't be called */ 1115 /* no flags etc. required, as an init function won't be called */
916 1116
917 PL_op = (OP *)&coro_setup_op; 1117 PL_op = (OP *)&init_perl_op;
918 1118
919 /* copy throw, in case it was set before coro_setup */ 1119 /* copy throw, in case it was set before init_perl */
920 CORO_THROW = coro->except; 1120 CORO_THROW = coro->except;
921}
922 1121
1122 SWAP_SVS (coro);
1123
1124 if (expect_false (enable_times))
1125 {
1126 coro_times_update ();
1127 coro_times_sub (coro);
1128 }
1129}
1130
923static void 1131static void
924coro_destruct (pTHX_ struct coro *coro) 1132coro_unwind_stacks (pTHX)
925{ 1133{
926 if (!IN_DESTRUCT) 1134 if (!IN_DESTRUCT)
927 { 1135 {
928 /* restore all saved variables and stuff */ 1136 /* restore all saved variables and stuff */
929 LEAVE_SCOPE (0); 1137 LEAVE_SCOPE (0);
… …
937 POPSTACK_TO (PL_mainstack); 1145 POPSTACK_TO (PL_mainstack);
938 1146
939 /* unwind main stack */ 1147 /* unwind main stack */
940 dounwind (-1); 1148 dounwind (-1);
941 } 1149 }
1150}
942 1151
943 SvREFCNT_dec (GvSV (PL_defgv)); 1152static void
944 SvREFCNT_dec (GvAV (PL_defgv)); 1153destroy_perl (pTHX_ struct coro *coro)
945 SvREFCNT_dec (GvSV (PL_errgv)); 1154{
946 SvREFCNT_dec (PL_defoutgv); 1155 SV *svf [9];
947 SvREFCNT_dec (PL_rs);
948 SvREFCNT_dec (GvSV (irsgv));
949 1156
950 SvREFCNT_dec (PL_diehook);
951 SvREFCNT_dec (PL_warnhook);
952 1157 {
1158 struct coro *current = SvSTATE_current;
1159
1160 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1161
1162 save_perl (aTHX_ current);
1163 load_perl (aTHX_ coro);
1164
1165 coro_unwind_stacks (aTHX);
1166 coro_destruct_stacks (aTHX);
1167
1168 /* restore swapped sv's */
1169 SWAP_SVS (coro);
1170
1171 // now save some sv's to be free'd later
1172 svf [0] = GvSV (PL_defgv);
1173 svf [1] = (SV *)GvAV (PL_defgv);
1174 svf [2] = GvSV (PL_errgv);
1175 svf [3] = (SV *)PL_defoutgv;
1176 svf [4] = PL_rs;
1177 svf [5] = GvSV (irsgv);
1178 svf [6] = (SV *)GvHV (PL_hintgv);
1179 svf [7] = PL_diehook;
1180 svf [8] = PL_warnhook;
1181 assert (9 == sizeof (svf) / sizeof (*svf));
1182
1183 load_perl (aTHX_ current);
1184 }
1185
1186 {
1187 unsigned int i;
1188
1189 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1190 SvREFCNT_dec (svf [i]);
1191
953 SvREFCNT_dec (coro->saved_deffh); 1192 SvREFCNT_dec (coro->saved_deffh);
954 SvREFCNT_dec (coro->rouse_cb); 1193 SvREFCNT_dec (coro->rouse_cb);
955 SvREFCNT_dec (coro->invoke_cb); 1194 SvREFCNT_dec (coro->invoke_cb);
956 SvREFCNT_dec (coro->invoke_av); 1195 SvREFCNT_dec (coro->invoke_av);
957 1196 }
958 coro_destruct_stacks (aTHX);
959} 1197}
960 1198
961INLINE void 1199INLINE void
962free_coro_mortal (pTHX) 1200free_coro_mortal (pTHX)
963{ 1201{
… …
1160 /* somebody or something will hit me for both perl_run and PL_restartop */ 1398 /* somebody or something will hit me for both perl_run and PL_restartop */
1161 PL_restartop = PL_op; 1399 PL_restartop = PL_op;
1162 perl_run (PL_curinterp); 1400 perl_run (PL_curinterp);
1163 /* 1401 /*
1164 * Unfortunately, there is no way to get at the return values of the 1402 * Unfortunately, there is no way to get at the return values of the
1165 * coro body here, as perl_run destroys these 1403 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1404 * runtime errors here, as this is just a random interpreter, not a thread.
1166 */ 1405 */
1167 1406
1168 /* 1407 /*
1169 * If perl-run returns we assume exit() was being called or the coro 1408 * If perl-run returns we assume exit() was being called or the coro
1170 * fell off the end, which seems to be the only valid (non-bug) 1409 * fell off the end, which seems to be the only valid (non-bug)
1171 * reason for perl_run to return. We try to exit by jumping to the 1410 * reason for perl_run to return. We try to exit by jumping to the
1172 * bootstrap-time "top" top_env, as we cannot restore the "main" 1411 * bootstrap-time "top" top_env, as we cannot restore the "main"
1173 * coroutine as Coro has no such concept 1412 * coroutine as Coro has no such concept.
1413 * This actually isn't valid with the pthread backend, but OSes requiring
1414 * that backend are too broken to do it in a standards-compliant way.
1174 */ 1415 */
1175 PL_top_env = main_top_env; 1416 PL_top_env = main_top_env;
1176 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1417 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1177 } 1418 }
1178} 1419}
… …
1255cctx_destroy (coro_cctx *cctx) 1496cctx_destroy (coro_cctx *cctx)
1256{ 1497{
1257 if (!cctx) 1498 if (!cctx)
1258 return; 1499 return;
1259 1500
1260 assert (cctx != cctx_current);//D temporary 1501 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1261 1502
1262 --cctx_count; 1503 --cctx_count;
1263 coro_destroy (&cctx->cctx); 1504 coro_destroy (&cctx->cctx);
1264 1505
1265 /* coro_transfer creates new, empty cctx's */ 1506 /* coro_transfer creates new, empty cctx's */
… …
1329 /* TODO: throwing up here is considered harmful */ 1570 /* TODO: throwing up here is considered harmful */
1330 1571
1331 if (expect_true (prev != next)) 1572 if (expect_true (prev != next))
1332 { 1573 {
1333 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1574 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1334 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1575 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1335 1576
1336 if (expect_false (next->flags & CF_RUNNING))
1337 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1338
1339 if (expect_false (next->flags & CF_DESTROYED)) 1577 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1340 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1578 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1341 1579
1342#if !PERL_VERSION_ATLEAST (5,10,0) 1580#if !PERL_VERSION_ATLEAST (5,10,0)
1343 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1581 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1344 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1582 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1345#endif 1583#endif
… …
1378 if (expect_false (next->flags & CF_NEW)) 1616 if (expect_false (next->flags & CF_NEW))
1379 { 1617 {
1380 /* need to start coroutine */ 1618 /* need to start coroutine */
1381 next->flags &= ~CF_NEW; 1619 next->flags &= ~CF_NEW;
1382 /* setup coroutine call */ 1620 /* setup coroutine call */
1383 coro_setup (aTHX_ next); 1621 init_perl (aTHX_ next);
1384 } 1622 }
1385 else 1623 else
1386 load_perl (aTHX_ next); 1624 load_perl (aTHX_ next);
1387 1625
1388 /* possibly untie and reuse the cctx */ 1626 /* possibly untie and reuse the cctx */
… …
1393 )) 1631 ))
1394 { 1632 {
1395 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1633 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1396 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1634 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1397 1635
1398 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1636 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1399 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1637 /* without this the next cctx_get might destroy the running cctx while still in use */
1400 if (expect_false (CCTX_EXPIRED (cctx_current))) 1638 if (expect_false (CCTX_EXPIRED (cctx_current)))
1401 if (!next->cctx) 1639 if (expect_true (!next->cctx))
1402 next->cctx = cctx_get (aTHX); 1640 next->cctx = cctx_get (aTHX);
1403 1641
1404 cctx_put (cctx_current); 1642 cctx_put (cctx_current);
1405 assert (!prev->cctx);//D temporary
1406 } 1643 }
1407 else 1644 else
1408 prev->cctx = cctx_current; 1645 prev->cctx = cctx_current;
1409 1646
1410 ++next->usecount; 1647 ++next->usecount;
… …
1434coro_state_destroy (pTHX_ struct coro *coro) 1671coro_state_destroy (pTHX_ struct coro *coro)
1435{ 1672{
1436 if (coro->flags & CF_DESTROYED) 1673 if (coro->flags & CF_DESTROYED)
1437 return 0; 1674 return 0;
1438 1675
1439 if (coro->on_destroy) 1676 if (coro->on_destroy && !PL_dirty)
1440 coro->on_destroy (aTHX_ coro); 1677 coro->on_destroy (aTHX_ coro);
1441 1678
1442 coro->flags |= CF_DESTROYED; 1679 coro->flags |= CF_DESTROYED;
1443 1680
1444 if (coro->flags & CF_READY) 1681 if (coro->flags & CF_READY)
… …
1448 --coro_nready; 1685 --coro_nready;
1449 } 1686 }
1450 else 1687 else
1451 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1688 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1452 1689
1453 if (coro->mainstack && coro->mainstack != main_mainstack) 1690 if (coro->mainstack
1454 { 1691 && coro->mainstack != main_mainstack
1455 struct coro temp; 1692 && coro->slot
1456 1693 && !PL_dirty)
1457 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1458
1459 save_perl (aTHX_ &temp);
1460 load_perl (aTHX_ coro); 1694 destroy_perl (aTHX_ coro);
1461 1695
1462 coro_destruct (aTHX_ coro); 1696 if (coro->next) coro->next->prev = coro->prev;
1463 1697 if (coro->prev) coro->prev->next = coro->next;
1464 load_perl (aTHX_ &temp); 1698 if (coro == coro_first) coro_first = coro->next;
1465
1466 coro->slot = 0;
1467 }
1468 1699
1469 cctx_destroy (coro->cctx); 1700 cctx_destroy (coro->cctx);
1470 SvREFCNT_dec (coro->startcv); 1701 SvREFCNT_dec (coro->startcv);
1471 SvREFCNT_dec (coro->args); 1702 SvREFCNT_dec (coro->args);
1703 SvREFCNT_dec (coro->swap_sv);
1472 SvREFCNT_dec (CORO_THROW); 1704 SvREFCNT_dec (CORO_THROW);
1473
1474 if (coro->next) coro->next->prev = coro->prev;
1475 if (coro->prev) coro->prev->next = coro->next;
1476 if (coro == coro_first) coro_first = coro->next;
1477 1705
1478 return 1; 1706 return 1;
1479} 1707}
1480 1708
1481static int 1709static int
… …
1531 1759
1532 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1760 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1533 TRANSFER (ta, 1); 1761 TRANSFER (ta, 1);
1534} 1762}
1535 1763
1536/*****************************************************************************/
1537/* gensub: simple closure generation utility */
1538
1539#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1540
1541/* create a closure from XS, returns a code reference */
1542/* the arg can be accessed via GENSUB_ARG from the callback */
1543/* the callback must use dXSARGS/XSRETURN */
1544static SV *
1545gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1546{
1547 CV *cv = (CV *)newSV (0);
1548
1549 sv_upgrade ((SV *)cv, SVt_PVCV);
1550
1551 CvANON_on (cv);
1552 CvISXSUB_on (cv);
1553 CvXSUB (cv) = xsub;
1554 GENSUB_ARG = arg;
1555
1556 return newRV_noinc ((SV *)cv);
1557}
1558
1559/** Coro ********************************************************************/ 1764/** Coro ********************************************************************/
1560 1765
1561INLINE void 1766INLINE void
1562coro_enq (pTHX_ struct coro *coro) 1767coro_enq (pTHX_ struct coro *coro)
1563{ 1768{
1564 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1769 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1565}
1566 1770
1567INLINE SV * 1771 SvREFCNT_inc_NN (coro->hv);
1772
1773 coro->next_ready = 0;
1774 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1775 ready [1] = coro;
1776}
1777
1778INLINE struct coro *
1568coro_deq (pTHX) 1779coro_deq (pTHX)
1569{ 1780{
1570 int prio; 1781 int prio;
1571 1782
1572 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1783 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1573 if (AvFILLp (coro_ready [prio]) >= 0) 1784 {
1574 return av_shift (coro_ready [prio]); 1785 struct coro **ready = coro_ready [prio];
1786
1787 if (ready [0])
1788 {
1789 struct coro *coro = ready [0];
1790 ready [0] = coro->next_ready;
1791 return coro;
1792 }
1793 }
1575 1794
1576 return 0; 1795 return 0;
1796}
1797
1798static void
1799invoke_sv_ready_hook_helper (void)
1800{
1801 dTHX;
1802 dSP;
1803
1804 ENTER;
1805 SAVETMPS;
1806
1807 PUSHMARK (SP);
1808 PUTBACK;
1809 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1810
1811 FREETMPS;
1812 LEAVE;
1577} 1813}
1578 1814
1579static int 1815static int
1580api_ready (pTHX_ SV *coro_sv) 1816api_ready (pTHX_ SV *coro_sv)
1581{ 1817{
1582 struct coro *coro;
1583 SV *sv_hook;
1584 void (*xs_hook)(void);
1585
1586 if (SvROK (coro_sv))
1587 coro_sv = SvRV (coro_sv);
1588
1589 coro = SvSTATE (coro_sv); 1818 struct coro *coro = SvSTATE (coro_sv);
1590 1819
1591 if (coro->flags & CF_READY) 1820 if (coro->flags & CF_READY)
1592 return 0; 1821 return 0;
1593 1822
1594 coro->flags |= CF_READY; 1823 coro->flags |= CF_READY;
1595 1824
1596 sv_hook = coro_nready ? 0 : coro_readyhook;
1597 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1598
1599 coro_enq (aTHX_ coro); 1825 coro_enq (aTHX_ coro);
1600 ++coro_nready;
1601 1826
1602 if (sv_hook) 1827 if (!coro_nready++)
1603 { 1828 if (coroapi.readyhook)
1604 dSP; 1829 coroapi.readyhook ();
1605
1606 ENTER;
1607 SAVETMPS;
1608
1609 PUSHMARK (SP);
1610 PUTBACK;
1611 call_sv (sv_hook, G_VOID | G_DISCARD);
1612
1613 FREETMPS;
1614 LEAVE;
1615 }
1616
1617 if (xs_hook)
1618 xs_hook ();
1619 1830
1620 return 1; 1831 return 1;
1621} 1832}
1622 1833
1623static int 1834static int
… …
1646static void 1857static void
1647prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1858prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1648{ 1859{
1649 for (;;) 1860 for (;;)
1650 { 1861 {
1651 SV *next_sv = coro_deq (aTHX); 1862 struct coro *next = coro_deq (aTHX);
1652 1863
1653 if (expect_true (next_sv)) 1864 if (expect_true (next))
1654 { 1865 {
1655 struct coro *next = SvSTATE_hv (next_sv);
1656
1657 /* cannot transfer to destroyed coros, skip and look for next */ 1866 /* cannot transfer to destroyed coros, skip and look for next */
1658 if (expect_false (next->flags & CF_DESTROYED)) 1867 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1659 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1868 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1660 else 1869 else
1661 { 1870 {
1662 next->flags &= ~CF_READY; 1871 next->flags &= ~CF_READY;
1663 --coro_nready; 1872 --coro_nready;
1664 1873
… …
1667 } 1876 }
1668 } 1877 }
1669 else 1878 else
1670 { 1879 {
1671 /* nothing to schedule: call the idle handler */ 1880 /* nothing to schedule: call the idle handler */
1881 if (SvROK (sv_idle)
1882 && SvOBJECT (SvRV (sv_idle)))
1883 {
1884 if (SvRV (sv_idle) == SvRV (coro_current))
1885 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1886
1887 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1888 api_ready (aTHX_ SvRV (sv_idle));
1889 --coro_nready;
1890 }
1891 else
1892 {
1893 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1672 dSP; 1894 dSP;
1673 1895
1674 ENTER; 1896 ENTER;
1675 SAVETMPS; 1897 SAVETMPS;
1676 1898
1677 PUSHMARK (SP); 1899 PUSHMARK (SP);
1678 PUTBACK; 1900 PUTBACK;
1679 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1901 call_sv (sv_idle, G_VOID | G_DISCARD);
1680 1902
1681 FREETMPS; 1903 FREETMPS;
1682 LEAVE; 1904 LEAVE;
1905 }
1683 } 1906 }
1684 } 1907 }
1685} 1908}
1686 1909
1687INLINE void 1910INLINE void
… …
1758static void 1981static void
1759api_trace (pTHX_ SV *coro_sv, int flags) 1982api_trace (pTHX_ SV *coro_sv, int flags)
1760{ 1983{
1761 struct coro *coro = SvSTATE (coro_sv); 1984 struct coro *coro = SvSTATE (coro_sv);
1762 1985
1986 if (coro->flags & CF_RUNNING)
1987 croak ("cannot enable tracing on a running coroutine, caught");
1988
1763 if (flags & CC_TRACE) 1989 if (flags & CC_TRACE)
1764 { 1990 {
1765 if (!coro->cctx) 1991 if (!coro->cctx)
1766 coro->cctx = cctx_new_run (); 1992 coro->cctx = cctx_new_run ();
1767 else if (!(coro->cctx->flags & CC_TRACE)) 1993 else if (!(coro->cctx->flags & CC_TRACE))
1768 croak ("cannot enable tracing on coroutine with custom stack,"); 1994 croak ("cannot enable tracing on coroutine with custom stack, caught");
1769 1995
1770 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1996 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1771 } 1997 }
1772 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1998 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1773 { 1999 {
… …
1782 2008
1783static void 2009static void
1784coro_call_on_destroy (pTHX_ struct coro *coro) 2010coro_call_on_destroy (pTHX_ struct coro *coro)
1785{ 2011{
1786 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2012 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1787 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1788 2013
1789 if (on_destroyp) 2014 if (on_destroyp)
1790 { 2015 {
1791 AV *on_destroy = (AV *)SvRV (*on_destroyp); 2016 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2017 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2018 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
1792 2019
1793 while (AvFILLp (on_destroy) >= 0) 2020 while (AvFILLp (on_destroy) >= 0)
1794 { 2021 {
1795 dSP; /* don't disturb outer sp */ 2022 dSP; /* don't disturb outer sp */
1796 SV *cb = av_pop (on_destroy); 2023 SV *cb = av_pop (on_destroy);
… …
1798 PUSHMARK (SP); 2025 PUSHMARK (SP);
1799 2026
1800 if (statusp) 2027 if (statusp)
1801 { 2028 {
1802 int i; 2029 int i;
1803 AV *status = (AV *)SvRV (*statusp);
1804 EXTEND (SP, AvFILLp (status) + 1); 2030 EXTEND (SP, AvFILLp (status) + 1);
1805 2031
1806 for (i = 0; i <= AvFILLp (status); ++i) 2032 for (i = 0; i <= AvFILLp (status); ++i)
1807 PUSHs (AvARRAY (status)[i]); 2033 PUSHs (AvARRAY (status)[i]);
1808 } 2034 }
… …
1812 } 2038 }
1813 } 2039 }
1814} 2040}
1815 2041
1816static void 2042static void
1817slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2043coro_set_status (HV *coro_hv, SV **arg, int items)
1818{ 2044{
1819 int i;
1820 HV *hv = (HV *)SvRV (coro_current);
1821 AV *av = newAV (); 2045 AV *av = newAV ();
1822 2046
2047 /* items are actually not so common, so optimise for this case */
2048 if (items)
2049 {
2050 int i;
2051
1823 av_extend (av, items - 1); 2052 av_extend (av, items - 1);
2053
1824 for (i = 0; i < items; ++i) 2054 for (i = 0; i < items; ++i)
1825 av_push (av, SvREFCNT_inc_NN (arg [i])); 2055 av_push (av, SvREFCNT_inc_NN (arg [i]));
2056 }
1826 2057
1827 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2058 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2059}
1828 2060
2061static void
2062slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2063{
1829 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2064 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1830 api_ready (aTHX_ sv_manager); 2065 api_ready (aTHX_ sv_manager);
1831 2066
1832 frame->prepare = prepare_schedule; 2067 frame->prepare = prepare_schedule;
1833 frame->check = slf_check_repeat; 2068 frame->check = slf_check_repeat;
2069
2070 /* as a minor optimisation, we could unwind all stacks here */
2071 /* but that puts extra pressure on pp_slf, and is not worth much */
2072 /*coro_unwind_stacks (aTHX);*/
2073}
2074
2075static void
2076slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2077{
2078 HV *coro_hv = (HV *)SvRV (coro_current);
2079
2080 coro_set_status (coro_hv, arg, items);
2081 slf_init_terminate_cancel_common (frame, coro_hv);
2082}
2083
2084static void
2085slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2086{
2087 HV *coro_hv;
2088 struct coro *coro;
2089
2090 if (items <= 0)
2091 croak ("Coro::cancel called without coro object,");
2092
2093 coro = SvSTATE (arg [0]);
2094 coro_hv = coro->hv;
2095
2096 coro_set_status (coro_hv, arg + 1, items - 1);
2097
2098 /* cancelling the current coro is allowed, and equals terminate */
2099 if (coro_hv == (HV *)SvRV (coro_current))
2100 slf_init_terminate_cancel_common (frame, coro_hv);
2101 else
2102 {
2103 /* otherwise we cancel ourselves */
2104 coro_state_destroy (aTHX_ coro);
2105 coro_call_on_destroy (aTHX_ coro);
2106
2107 frame->prepare = prepare_nop;
2108 frame->check = slf_check_nop;
2109 }
1834} 2110}
1835 2111
1836/*****************************************************************************/ 2112/*****************************************************************************/
1837/* async pool handler */ 2113/* async pool handler */
1838 2114
… …
1916 2192
1917static void 2193static void
1918coro_rouse_callback (pTHX_ CV *cv) 2194coro_rouse_callback (pTHX_ CV *cv)
1919{ 2195{
1920 dXSARGS; 2196 dXSARGS;
1921 SV *data = (SV *)GENSUB_ARG; 2197 SV *data = (SV *)S_GENSUB_ARG;
1922 2198
1923 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2199 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1924 { 2200 {
1925 /* first call, set args */ 2201 /* first call, set args */
2202 SV *coro = SvRV (data);
1926 AV *av = newAV (); 2203 AV *av = newAV ();
1927 SV *coro = SvRV (data);
1928 2204
1929 SvRV_set (data, (SV *)av); 2205 SvRV_set (data, (SV *)av);
1930 api_ready (aTHX_ coro);
1931 SvREFCNT_dec (coro);
1932 2206
1933 /* better take a full copy of the arguments */ 2207 /* better take a full copy of the arguments */
1934 while (items--) 2208 while (items--)
1935 av_store (av, items, newSVsv (ST (items))); 2209 av_store (av, items, newSVsv (ST (items)));
2210
2211 api_ready (aTHX_ coro);
2212 SvREFCNT_dec (coro);
1936 } 2213 }
1937 2214
1938 XSRETURN_EMPTY; 2215 XSRETURN_EMPTY;
1939} 2216}
1940 2217
… …
1957 2234
1958 EXTEND (SP, AvFILLp (av) + 1); 2235 EXTEND (SP, AvFILLp (av) + 1);
1959 for (i = 0; i <= AvFILLp (av); ++i) 2236 for (i = 0; i <= AvFILLp (av); ++i)
1960 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2237 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1961 2238
1962 /* we have stolen the elements, so ste length to zero and free */ 2239 /* we have stolen the elements, so set length to zero and free */
1963 AvFILLp (av) = -1; 2240 AvFILLp (av) = -1;
1964 av_undef (av); 2241 av_undef (av);
1965 2242
1966 PUTBACK; 2243 PUTBACK;
1967 } 2244 }
… …
1991 || SvTYPE (SvRV (cb)) != SVt_PVCV 2268 || SvTYPE (SvRV (cb)) != SVt_PVCV
1992 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2269 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1993 croak ("Coro::rouse_wait called with illegal callback argument,"); 2270 croak ("Coro::rouse_wait called with illegal callback argument,");
1994 2271
1995 { 2272 {
1996 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2273 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1997 SV *data = (SV *)GENSUB_ARG; 2274 SV *data = (SV *)S_GENSUB_ARG;
1998 2275
1999 frame->data = (void *)data; 2276 frame->data = (void *)data;
2000 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2277 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2001 frame->check = slf_check_rouse_wait; 2278 frame->check = slf_check_rouse_wait;
2002 } 2279 }
… …
2006coro_new_rouse_cb (pTHX) 2283coro_new_rouse_cb (pTHX)
2007{ 2284{
2008 HV *hv = (HV *)SvRV (coro_current); 2285 HV *hv = (HV *)SvRV (coro_current);
2009 struct coro *coro = SvSTATE_hv (hv); 2286 struct coro *coro = SvSTATE_hv (hv);
2010 SV *data = newRV_inc ((SV *)hv); 2287 SV *data = newRV_inc ((SV *)hv);
2011 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2288 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2012 2289
2013 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2290 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2014 SvREFCNT_dec (data); /* magicext increases the refcount */ 2291 SvREFCNT_dec (data); /* magicext increases the refcount */
2015 2292
2016 SvREFCNT_dec (coro->rouse_cb); 2293 SvREFCNT_dec (coro->rouse_cb);
… …
2241 if (PL_op->op_flags & OPf_STACKED) 2518 if (PL_op->op_flags & OPf_STACKED)
2242 { 2519 {
2243 if (items > slf_arga) 2520 if (items > slf_arga)
2244 { 2521 {
2245 slf_arga = items; 2522 slf_arga = items;
2246 free (slf_argv); 2523 Safefree (slf_argv);
2247 slf_argv = malloc (slf_arga * sizeof (SV *)); 2524 New (0, slf_argv, slf_arga, SV *);
2248 } 2525 }
2249 2526
2250 slf_argc = items; 2527 slf_argc = items;
2251 2528
2252 for (i = 0; i < items; ++i) 2529 for (i = 0; i < items; ++i)
… …
2257 2534
2258 PL_op->op_ppaddr = pp_slf; 2535 PL_op->op_ppaddr = pp_slf;
2259 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2536 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2260 2537
2261 PL_op = (OP *)&slf_restore; 2538 PL_op = (OP *)&slf_restore;
2539}
2540
2541/*****************************************************************************/
2542/* dynamic wind */
2543
2544static void
2545on_enterleave_call (pTHX_ SV *cb)
2546{
2547 dSP;
2548
2549 PUSHSTACK;
2550
2551 PUSHMARK (SP);
2552 PUTBACK;
2553 call_sv (cb, G_VOID | G_DISCARD);
2554 SPAGAIN;
2555
2556 POPSTACK;
2557}
2558
2559static SV *
2560coro_avp_pop_and_free (pTHX_ AV **avp)
2561{
2562 AV *av = *avp;
2563 SV *res = av_pop (av);
2564
2565 if (AvFILLp (av) < 0)
2566 {
2567 *avp = 0;
2568 SvREFCNT_dec (av);
2569 }
2570
2571 return res;
2572}
2573
2574static void
2575coro_pop_on_enter (pTHX_ void *coro)
2576{
2577 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2578 SvREFCNT_dec (cb);
2579}
2580
2581static void
2582coro_pop_on_leave (pTHX_ void *coro)
2583{
2584 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2585 on_enterleave_call (aTHX_ sv_2mortal (cb));
2262} 2586}
2263 2587
2264/*****************************************************************************/ 2588/*****************************************************************************/
2265/* PerlIO::cede */ 2589/* PerlIO::cede */
2266 2590
… …
2340/* Coro::Semaphore & Coro::Signal */ 2664/* Coro::Semaphore & Coro::Signal */
2341 2665
2342static SV * 2666static SV *
2343coro_waitarray_new (pTHX_ int count) 2667coro_waitarray_new (pTHX_ int count)
2344{ 2668{
2345 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2669 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2346 AV *av = newAV (); 2670 AV *av = newAV ();
2347 SV **ary; 2671 SV **ary;
2348 2672
2349 /* unfortunately, building manually saves memory */ 2673 /* unfortunately, building manually saves memory */
2350 Newx (ary, 2, SV *); 2674 Newx (ary, 2, SV *);
2351 AvALLOC (av) = ary; 2675 AvALLOC (av) = ary;
2676#if PERL_VERSION_ATLEAST (5,10,0)
2352 /*AvARRAY (av) = ary;*/ 2677 AvARRAY (av) = ary;
2678#else
2353 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2679 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2680 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2681 SvPVX ((SV *)av) = (char *)ary;
2682#endif
2354 AvMAX (av) = 1; 2683 AvMAX (av) = 1;
2355 AvFILLp (av) = 0; 2684 AvFILLp (av) = 0;
2356 ary [0] = newSViv (count); 2685 ary [0] = newSViv (count);
2357 2686
2358 return newRV_noinc ((SV *)av); 2687 return newRV_noinc ((SV *)av);
… …
2487{ 2816{
2488 if (items >= 2) 2817 if (items >= 2)
2489 { 2818 {
2490 /* callback form */ 2819 /* callback form */
2491 AV *av = (AV *)SvRV (arg [0]); 2820 AV *av = (AV *)SvRV (arg [0]);
2492 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2821 SV *cb_cv = s_get_cv_croak (arg [1]);
2493 2822
2494 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2823 av_push (av, SvREFCNT_inc_NN (cb_cv));
2495 2824
2496 if (SvIVX (AvARRAY (av)[0]) > 0) 2825 if (SvIVX (AvARRAY (av)[0]) > 0)
2497 coro_semaphore_adjust (aTHX_ av, 0); 2826 coro_semaphore_adjust (aTHX_ av, 0);
2498 2827
2499 frame->prepare = prepare_nop; 2828 frame->prepare = prepare_nop;
… …
2523 AvARRAY (av)[0] = AvARRAY (av)[1]; 2852 AvARRAY (av)[0] = AvARRAY (av)[1];
2524 AvARRAY (av)[1] = cb; 2853 AvARRAY (av)[1] = cb;
2525 2854
2526 cb = av_shift (av); 2855 cb = av_shift (av);
2527 2856
2857 if (SvTYPE (cb) == SVt_PVCV)
2858 {
2859 dSP;
2860 PUSHMARK (SP);
2861 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2862 PUTBACK;
2863 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2864 }
2865 else
2866 {
2528 api_ready (aTHX_ cb); 2867 api_ready (aTHX_ cb);
2529 sv_setiv (cb, 0); /* signal waiter */ 2868 sv_setiv (cb, 0); /* signal waiter */
2869 }
2870
2530 SvREFCNT_dec (cb); 2871 SvREFCNT_dec (cb);
2531 2872
2532 --count; 2873 --count;
2533 } 2874 }
2534} 2875}
… …
2543static void 2884static void
2544slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2885slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2545{ 2886{
2546 AV *av = (AV *)SvRV (arg [0]); 2887 AV *av = (AV *)SvRV (arg [0]);
2547 2888
2889 if (items >= 2)
2890 {
2891 SV *cb_cv = s_get_cv_croak (arg [1]);
2892 av_push (av, SvREFCNT_inc_NN (cb_cv));
2893
2548 if (SvIVX (AvARRAY (av)[0])) 2894 if (SvIVX (AvARRAY (av)[0]))
2895 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2896
2897 frame->prepare = prepare_nop;
2898 frame->check = slf_check_nop;
2899 }
2900 else if (SvIVX (AvARRAY (av)[0]))
2549 { 2901 {
2550 SvIVX (AvARRAY (av)[0]) = 0; 2902 SvIVX (AvARRAY (av)[0]) = 0;
2551 frame->prepare = prepare_nop; 2903 frame->prepare = prepare_nop;
2552 frame->check = slf_check_nop; 2904 frame->check = slf_check_nop;
2553 } 2905 }
2554 else 2906 else
2555 { 2907 {
2556 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2908 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2557 2909
2558 av_push (av, waiter); 2910 av_push (av, waiter);
2559 2911
2560 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2912 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2561 frame->prepare = prepare_schedule; 2913 frame->prepare = prepare_schedule;
… …
2579 2931
2580static void 2932static void
2581coro_aio_callback (pTHX_ CV *cv) 2933coro_aio_callback (pTHX_ CV *cv)
2582{ 2934{
2583 dXSARGS; 2935 dXSARGS;
2584 AV *state = (AV *)GENSUB_ARG; 2936 AV *state = (AV *)S_GENSUB_ARG;
2585 SV *coro = av_pop (state); 2937 SV *coro = av_pop (state);
2586 SV *data_sv = newSV (sizeof (struct io_state)); 2938 SV *data_sv = newSV (sizeof (struct io_state));
2587 2939
2588 av_extend (state, items - 1); 2940 av_extend (state, items - 1);
2589 2941
… …
2703 3055
2704 for (i = 0; i < items; ++i) 3056 for (i = 0; i < items; ++i)
2705 PUSHs (arg [i]); 3057 PUSHs (arg [i]);
2706 3058
2707 /* now push the callback closure */ 3059 /* now push the callback closure */
2708 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3060 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2709 3061
2710 /* now call the AIO function - we assume our request is uncancelable */ 3062 /* now call the AIO function - we assume our request is uncancelable */
2711 PUTBACK; 3063 PUTBACK;
2712 call_sv ((SV *)req, G_VOID | G_DISCARD); 3064 call_sv ((SV *)req, G_VOID | G_DISCARD);
2713 } 3065 }
2714 3066
2715 /* now that the requets is going, we loop toll we have a result */ 3067 /* now that the request is going, we loop till we have a result */
2716 frame->data = (void *)state; 3068 frame->data = (void *)state;
2717 frame->prepare = prepare_schedule; 3069 frame->prepare = prepare_schedule;
2718 frame->check = slf_check_aio_req; 3070 frame->check = slf_check_aio_req;
2719} 3071}
2720 3072
… …
2731/*****************************************************************************/ 3083/*****************************************************************************/
2732 3084
2733#if CORO_CLONE 3085#if CORO_CLONE
2734# include "clone.c" 3086# include "clone.c"
2735#endif 3087#endif
3088
3089/*****************************************************************************/
3090
3091static SV *
3092coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3093{
3094 SV *coro_sv;
3095 struct coro *coro;
3096 MAGIC *mg;
3097 HV *hv;
3098 SV *cb;
3099 int i;
3100
3101 if (argc > 0)
3102 {
3103 cb = s_get_cv_croak (argv [0]);
3104
3105 if (!is_coro)
3106 {
3107 if (CvISXSUB (cb))
3108 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3109
3110 if (!CvROOT (cb))
3111 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3112 }
3113 }
3114
3115 Newz (0, coro, 1, struct coro);
3116 coro->args = newAV ();
3117 coro->flags = CF_NEW;
3118
3119 if (coro_first) coro_first->prev = coro;
3120 coro->next = coro_first;
3121 coro_first = coro;
3122
3123 coro->hv = hv = newHV ();
3124 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3125 mg->mg_flags |= MGf_DUP;
3126 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3127
3128 if (argc > 0)
3129 {
3130 av_extend (coro->args, argc + is_coro - 1);
3131
3132 if (is_coro)
3133 {
3134 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3135 cb = (SV *)cv_coro_run;
3136 }
3137
3138 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3139
3140 for (i = 1; i < argc; i++)
3141 av_push (coro->args, newSVsv (argv [i]));
3142 }
3143
3144 return coro_sv;
3145}
2736 3146
2737MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3147MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2738 3148
2739PROTOTYPES: DISABLE 3149PROTOTYPES: DISABLE
2740 3150
… …
2793 coroapi.prepare_nop = prepare_nop; 3203 coroapi.prepare_nop = prepare_nop;
2794 coroapi.prepare_schedule = prepare_schedule; 3204 coroapi.prepare_schedule = prepare_schedule;
2795 coroapi.prepare_cede = prepare_cede; 3205 coroapi.prepare_cede = prepare_cede;
2796 coroapi.prepare_cede_notself = prepare_cede_notself; 3206 coroapi.prepare_cede_notself = prepare_cede_notself;
2797 3207
2798 { 3208 time_init (aTHX);
2799 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2800 3209
2801 if (!svp) croak ("Time::HiRes is required");
2802 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2803
2804 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2805 }
2806
2807 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3210 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2808} 3211}
2809 3212
2810SV * 3213SV *
2811new (char *klass, ...) 3214new (SV *klass, ...)
2812 ALIAS: 3215 ALIAS:
2813 Coro::new = 1 3216 Coro::new = 1
2814 CODE: 3217 CODE:
2815{ 3218 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2816 struct coro *coro; 3219 OUTPUT:
2817 MAGIC *mg;
2818 HV *hv;
2819 CV *cb;
2820 int i;
2821
2822 if (items > 1)
2823 {
2824 cb = coro_sv_2cv (aTHX_ ST (1));
2825
2826 if (!ix)
2827 {
2828 if (CvISXSUB (cb))
2829 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2830
2831 if (!CvROOT (cb))
2832 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2833 }
2834 }
2835
2836 Newz (0, coro, 1, struct coro);
2837 coro->args = newAV ();
2838 coro->flags = CF_NEW;
2839
2840 if (coro_first) coro_first->prev = coro;
2841 coro->next = coro_first;
2842 coro_first = coro;
2843
2844 coro->hv = hv = newHV ();
2845 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2846 mg->mg_flags |= MGf_DUP;
2847 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2848
2849 if (items > 1)
2850 {
2851 av_extend (coro->args, items - 1 + ix - 1);
2852
2853 if (ix)
2854 {
2855 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2856 cb = cv_coro_run;
2857 }
2858
2859 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2860
2861 for (i = 2; i < items; i++)
2862 av_push (coro->args, newSVsv (ST (i)));
2863 }
2864}
2865 OUTPUT:
2866 RETVAL 3220 RETVAL
2867 3221
2868void 3222void
2869transfer (...) 3223transfer (...)
2870 PROTOTYPE: $$ 3224 PROTOTYPE: $$
2871 CODE: 3225 CODE:
2872 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3226 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2873 3227
2874bool
2875_destroy (SV *coro_sv)
2876 CODE:
2877 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2878 OUTPUT:
2879 RETVAL
2880
2881void 3228void
2882_exit (int code) 3229_exit (int code)
2883 PROTOTYPE: $ 3230 PROTOTYPE: $
2884 CODE: 3231 CODE:
2885 _exit (code); 3232 _exit (code);
… …
2887SV * 3234SV *
2888clone (Coro::State coro) 3235clone (Coro::State coro)
2889 CODE: 3236 CODE:
2890{ 3237{
2891#if CORO_CLONE 3238#if CORO_CLONE
2892 struct coro *ncoro = coro_clone (coro); 3239 struct coro *ncoro = coro_clone (aTHX_ coro);
2893 MAGIC *mg; 3240 MAGIC *mg;
2894 /* TODO: too much duplication */ 3241 /* TODO: too much duplication */
2895 ncoro->hv = newHV (); 3242 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3243 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP; 3244 mg->mg_flags |= MGf_DUP;
… …
2959 eval = 1 3306 eval = 1
2960 CODE: 3307 CODE:
2961{ 3308{
2962 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3309 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2963 { 3310 {
2964 struct coro temp; 3311 struct coro *current = SvSTATE_current;
2965 3312
2966 if (!(coro->flags & CF_RUNNING)) 3313 if (current != coro)
2967 { 3314 {
2968 PUTBACK; 3315 PUTBACK;
2969 save_perl (aTHX_ &temp); 3316 save_perl (aTHX_ current);
2970 load_perl (aTHX_ coro); 3317 load_perl (aTHX_ coro);
3318 SPAGAIN;
2971 } 3319 }
2972 3320
2973 {
2974 dSP;
2975 ENTER;
2976 SAVETMPS;
2977 PUTBACK;
2978 PUSHSTACK; 3321 PUSHSTACK;
3322
2979 PUSHMARK (SP); 3323 PUSHMARK (SP);
3324 PUTBACK;
2980 3325
2981 if (ix) 3326 if (ix)
2982 eval_sv (coderef, 0); 3327 eval_sv (coderef, 0);
2983 else 3328 else
2984 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3329 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2985 3330
2986 POPSTACK; 3331 POPSTACK;
2987 SPAGAIN; 3332 SPAGAIN;
2988 FREETMPS;
2989 LEAVE;
2990 PUTBACK;
2991 }
2992 3333
2993 if (!(coro->flags & CF_RUNNING)) 3334 if (current != coro)
2994 { 3335 {
3336 PUTBACK;
2995 save_perl (aTHX_ coro); 3337 save_perl (aTHX_ coro);
2996 load_perl (aTHX_ &temp); 3338 load_perl (aTHX_ current);
2997 SPAGAIN; 3339 SPAGAIN;
2998 } 3340 }
2999 } 3341 }
3000} 3342}
3001 3343
… …
3005 ALIAS: 3347 ALIAS:
3006 is_ready = CF_READY 3348 is_ready = CF_READY
3007 is_running = CF_RUNNING 3349 is_running = CF_RUNNING
3008 is_new = CF_NEW 3350 is_new = CF_NEW
3009 is_destroyed = CF_DESTROYED 3351 is_destroyed = CF_DESTROYED
3352 is_suspended = CF_SUSPENDED
3010 CODE: 3353 CODE:
3011 RETVAL = boolSV (coro->flags & ix); 3354 RETVAL = boolSV (coro->flags & ix);
3012 OUTPUT: 3355 OUTPUT:
3013 RETVAL 3356 RETVAL
3014 3357
3015void 3358void
3016throw (Coro::State self, SV *throw = &PL_sv_undef) 3359throw (Coro::State self, SV *exception = &PL_sv_undef)
3017 PROTOTYPE: $;$ 3360 PROTOTYPE: $;$
3018 CODE: 3361 CODE:
3019{ 3362{
3020 struct coro *current = SvSTATE_current; 3363 struct coro *current = SvSTATE_current;
3021 SV **throwp = self == current ? &CORO_THROW : &self->except; 3364 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3022 SvREFCNT_dec (*throwp); 3365 SvREFCNT_dec (*exceptionp);
3023 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3366 SvGETMAGIC (exception);
3367 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3024} 3368}
3025 3369
3026void 3370void
3027api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3371api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3028 PROTOTYPE: $;$ 3372 PROTOTYPE: $;$
… …
3079 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3423 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3080 3424
3081 SV *tmp = *src; *src = *dst; *dst = tmp; 3425 SV *tmp = *src; *src = *dst; *dst = tmp;
3082 } 3426 }
3083 3427
3428void
3429cancel (Coro::State self)
3430 CODE:
3431 coro_state_destroy (aTHX_ self);
3432
3433SV *
3434enable_times (int enabled = enable_times)
3435 CODE:
3436{
3437 RETVAL = boolSV (enable_times);
3438
3439 if (enabled != enable_times)
3440 {
3441 enable_times = enabled;
3442
3443 coro_times_update ();
3444 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3445 }
3446}
3447 OUTPUT:
3448 RETVAL
3449
3450void
3451times (Coro::State self)
3452 PPCODE:
3453{
3454 struct coro *current = SvSTATE (coro_current);
3455
3456 if (expect_false (current == self))
3457 {
3458 coro_times_update ();
3459 coro_times_add (SvSTATE (coro_current));
3460 }
3461
3462 EXTEND (SP, 2);
3463 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3464 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3465
3466 if (expect_false (current == self))
3467 coro_times_sub (SvSTATE (coro_current));
3468}
3469
3470void
3471swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3472 CODE:
3473{
3474 struct coro *current = SvSTATE_current;
3475
3476 if (current == coro)
3477 SWAP_SVS (current);
3478
3479 if (!coro->swap_sv)
3480 coro->swap_sv = newAV ();
3481
3482 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3483 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3484
3485 if (current == coro)
3486 SWAP_SVS (current);
3487}
3488
3084 3489
3085MODULE = Coro::State PACKAGE = Coro 3490MODULE = Coro::State PACKAGE = Coro
3086 3491
3087BOOT: 3492BOOT:
3088{ 3493{
3089 int i;
3090
3091 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3494 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3092 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3495 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3093 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3496 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3094 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3497 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3095 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3498 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3096 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3499 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3097 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3500 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3098 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3501 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3502 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3099 3503
3100 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3504 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3101 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3505 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3102 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3506 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3103 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3507 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3104 3508
3105 coro_stash = gv_stashpv ("Coro", TRUE); 3509 coro_stash = gv_stashpv ("Coro", TRUE);
3106 3510
3107 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3511 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3108 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3512 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3109 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3513 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3110 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3514 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3111 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3515 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3112 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3516 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3113
3114 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3115 coro_ready[i] = newAV ();
3116 3517
3117 { 3518 {
3118 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3519 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3119 3520
3120 coroapi.schedule = api_schedule; 3521 coroapi.schedule = api_schedule;
… …
3130 sv_setiv (sv, (IV)&coroapi); 3531 sv_setiv (sv, (IV)&coroapi);
3131 SvREADONLY_on (sv); 3532 SvREADONLY_on (sv);
3132 } 3533 }
3133} 3534}
3134 3535
3536SV *
3537async (...)
3538 PROTOTYPE: &@
3539 CODE:
3540 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3541 api_ready (aTHX_ RETVAL);
3542 OUTPUT:
3543 RETVAL
3544
3545void
3546_destroy (Coro::State coro)
3547 CODE:
3548 /* used by the manager thread */
3549 coro_state_destroy (aTHX_ coro);
3550 coro_call_on_destroy (aTHX_ coro);
3551
3135void 3552void
3136terminate (...) 3553terminate (...)
3137 CODE: 3554 CODE:
3138 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3555 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3139 3556
3140void 3557void
3558cancel (...)
3559 CODE:
3560 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3561
3562void
3141schedule (...) 3563schedule (...)
3142 CODE: 3564 CODE:
3143 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3565 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3144 3566
3145void 3567void
… …
3159 3581
3160void 3582void
3161cede_notself (...) 3583cede_notself (...)
3162 CODE: 3584 CODE:
3163 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3585 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3164
3165void
3166_cancel (Coro::State self)
3167 CODE:
3168 coro_state_destroy (aTHX_ self);
3169 coro_call_on_destroy (aTHX_ self);
3170 3586
3171void 3587void
3172_set_current (SV *current) 3588_set_current (SV *current)
3173 PROTOTYPE: $ 3589 PROTOTYPE: $
3174 CODE: 3590 CODE:
… …
3178void 3594void
3179_set_readyhook (SV *hook) 3595_set_readyhook (SV *hook)
3180 PROTOTYPE: $ 3596 PROTOTYPE: $
3181 CODE: 3597 CODE:
3182 SvREFCNT_dec (coro_readyhook); 3598 SvREFCNT_dec (coro_readyhook);
3599 SvGETMAGIC (hook);
3600 if (SvOK (hook))
3601 {
3183 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3602 coro_readyhook = newSVsv (hook);
3603 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3604 }
3605 else
3606 {
3607 coro_readyhook = 0;
3608 CORO_READYHOOK = 0;
3609 }
3184 3610
3185int 3611int
3186prio (Coro::State coro, int newprio = 0) 3612prio (Coro::State coro, int newprio = 0)
3187 PROTOTYPE: $;$ 3613 PROTOTYPE: $;$
3188 ALIAS: 3614 ALIAS:
… …
3194 if (items > 1) 3620 if (items > 1)
3195 { 3621 {
3196 if (ix) 3622 if (ix)
3197 newprio = coro->prio - newprio; 3623 newprio = coro->prio - newprio;
3198 3624
3199 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3625 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3200 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3626 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3201 3627
3202 coro->prio = newprio; 3628 coro->prio = newprio;
3203 } 3629 }
3204} 3630}
3205 OUTPUT: 3631 OUTPUT:
… …
3220 RETVAL = coro_nready; 3646 RETVAL = coro_nready;
3221 OUTPUT: 3647 OUTPUT:
3222 RETVAL 3648 RETVAL
3223 3649
3224void 3650void
3651suspend (Coro::State self)
3652 PROTOTYPE: $
3653 CODE:
3654 self->flags |= CF_SUSPENDED;
3655
3656void
3657resume (Coro::State self)
3658 PROTOTYPE: $
3659 CODE:
3660 self->flags &= ~CF_SUSPENDED;
3661
3662void
3225_pool_handler (...) 3663_pool_handler (...)
3226 CODE: 3664 CODE:
3227 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3665 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3228 3666
3229void 3667void
… …
3240 for (i = 1; i < items; ++i) 3678 for (i = 1; i < items; ++i)
3241 av_push (av, SvREFCNT_inc_NN (ST (i))); 3679 av_push (av, SvREFCNT_inc_NN (ST (i)));
3242 3680
3243 if ((SV *)hv == &PL_sv_undef) 3681 if ((SV *)hv == &PL_sv_undef)
3244 { 3682 {
3245 PUSHMARK (SP); 3683 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3246 EXTEND (SP, 2);
3247 PUSHs (sv_Coro);
3248 PUSHs ((SV *)cv_pool_handler);
3249 PUTBACK;
3250 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3251 SPAGAIN;
3252
3253 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3684 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3685 SvREFCNT_dec (sv);
3254 } 3686 }
3255 3687
3256 { 3688 {
3257 struct coro *coro = SvSTATE_hv (hv); 3689 struct coro *coro = SvSTATE_hv (hv);
3258 3690
… …
3282rouse_wait (...) 3714rouse_wait (...)
3283 PROTOTYPE: ;$ 3715 PROTOTYPE: ;$
3284 PPCODE: 3716 PPCODE:
3285 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3717 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3286 3718
3719void
3720on_enter (SV *block)
3721 ALIAS:
3722 on_leave = 1
3723 PROTOTYPE: &
3724 CODE:
3725{
3726 struct coro *coro = SvSTATE_current;
3727 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3728
3729 block = s_get_cv_croak (block);
3730
3731 if (!*avp)
3732 *avp = newAV ();
3733
3734 av_push (*avp, SvREFCNT_inc (block));
3735
3736 if (!ix)
3737 on_enterleave_call (aTHX_ block);
3738
3739 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3740 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3741 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3742}
3743
3287 3744
3288MODULE = Coro::State PACKAGE = PerlIO::cede 3745MODULE = Coro::State PACKAGE = PerlIO::cede
3289 3746
3290BOOT: 3747BOOT:
3291 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3748 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3294MODULE = Coro::State PACKAGE = Coro::Semaphore 3751MODULE = Coro::State PACKAGE = Coro::Semaphore
3295 3752
3296SV * 3753SV *
3297new (SV *klass, SV *count = 0) 3754new (SV *klass, SV *count = 0)
3298 CODE: 3755 CODE:
3756{
3757 int semcnt = 1;
3758
3759 if (count)
3760 {
3761 SvGETMAGIC (count);
3762
3763 if (SvOK (count))
3764 semcnt = SvIV (count);
3765 }
3766
3299 RETVAL = sv_bless ( 3767 RETVAL = sv_bless (
3300 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3768 coro_waitarray_new (aTHX_ semcnt),
3301 GvSTASH (CvGV (cv)) 3769 GvSTASH (CvGV (cv))
3302 ); 3770 );
3771}
3303 OUTPUT: 3772 OUTPUT:
3304 RETVAL 3773 RETVAL
3305 3774
3306# helper for Coro::Channel 3775# helper for Coro::Channel and others
3307SV * 3776SV *
3308_alloc (int count) 3777_alloc (int count)
3309 CODE: 3778 CODE:
3310 RETVAL = coro_waitarray_new (aTHX_ count); 3779 RETVAL = coro_waitarray_new (aTHX_ count);
3311 OUTPUT: 3780 OUTPUT:
… …
3369 for (i = 1; i <= wcount; ++i) 3838 for (i = 1; i <= wcount; ++i)
3370 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3839 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3371 } 3840 }
3372} 3841}
3373 3842
3843MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3844
3845void
3846_may_delete (SV *sem, int count, int extra_refs)
3847 PPCODE:
3848{
3849 AV *av = (AV *)SvRV (sem);
3850
3851 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3852 && AvFILLp (av) == 0 /* no waiters, just count */
3853 && SvIV (AvARRAY (av)[0]) == count)
3854 XSRETURN_YES;
3855
3856 XSRETURN_NO;
3857}
3858
3374MODULE = Coro::State PACKAGE = Coro::Signal 3859MODULE = Coro::State PACKAGE = Coro::Signal
3375 3860
3376SV * 3861SV *
3377new (SV *klass) 3862new (SV *klass)
3378 CODE: 3863 CODE:
… …
3449 3934
3450void 3935void
3451_register (char *target, char *proto, SV *req) 3936_register (char *target, char *proto, SV *req)
3452 CODE: 3937 CODE:
3453{ 3938{
3454 CV *req_cv = coro_sv_2cv (aTHX_ req); 3939 SV *req_cv = s_get_cv_croak (req);
3455 /* newXSproto doesn't return the CV on 5.8 */ 3940 /* newXSproto doesn't return the CV on 5.8 */
3456 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3941 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3457 sv_setpv ((SV *)slf_cv, proto); 3942 sv_setpv ((SV *)slf_cv, proto);
3458 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3943 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3459} 3944}
3460 3945
3946MODULE = Coro::State PACKAGE = Coro::Select
3947
3948void
3949patch_pp_sselect ()
3950 CODE:
3951 if (!coro_old_pp_sselect)
3952 {
3953 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3954 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3955 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3956 }
3957
3958void
3959unpatch_pp_sselect ()
3960 CODE:
3961 if (coro_old_pp_sselect)
3962 {
3963 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3964 coro_old_pp_sselect = 0;
3965 }
3966

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