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Comparing Coro/Coro/State.xs (file contents):
Revision 1.321 by root, Sat Nov 22 02:09:54 2008 UTC vs.
Revision 1.394 by root, Sat Apr 30 05:17:43 2011 UTC

1#define CORO_CLONE 1 //D 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
2 5
3#include "libcoro/coro.c" 6#include "libcoro/coro.c"
4 7
5#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
6#define PERL_EXT 9#define PERL_EXT
… …
8#include "EXTERN.h" 11#include "EXTERN.h"
9#include "perl.h" 12#include "perl.h"
10#include "XSUB.h" 13#include "XSUB.h"
11#include "perliol.h" 14#include "perliol.h"
12 15
13#include "patchlevel.h" 16#include "schmorp.h"
14 17
15#include <stdio.h> 18#include <stdio.h>
16#include <errno.h> 19#include <errno.h>
17#include <assert.h> 20#include <assert.h>
18 21
19#ifdef WIN32 22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
25
26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
20# undef setjmp 28# undef setjmp
21# undef longjmp 29# undef longjmp
22# undef _exit 30# undef _exit
23# define setjmp _setjmp /* deep magic */ 31# define setjmp _setjmp /* deep magic */
24#else 32#else
… …
53#endif 61#endif
54 62
55/* the maximum number of idle cctx that will be pooled */ 63/* the maximum number of idle cctx that will be pooled */
56static int cctx_max_idle = 4; 64static int cctx_max_idle = 4;
57 65
58#define PERL_VERSION_ATLEAST(a,b,c) \
59 (PERL_REVISION > (a) \
60 || (PERL_REVISION == (a) \
61 && (PERL_VERSION > (b) \
62 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
63
64#if !PERL_VERSION_ATLEAST (5,6,0)
65# ifndef PL_ppaddr
66# define PL_ppaddr ppaddr
67# endif
68# ifndef call_sv
69# define call_sv perl_call_sv
70# endif
71# ifndef get_sv
72# define get_sv perl_get_sv
73# endif
74# ifndef get_cv
75# define get_cv perl_get_cv
76# endif
77# ifndef IS_PADGV
78# define IS_PADGV(v) 0
79# endif
80# ifndef IS_PADCONST
81# define IS_PADCONST(v) 0
82# endif
83#endif
84
85/* 5.11 */
86#ifndef CxHASARGS
87# define CxHASARGS(cx) (cx)->blk_sub.hasargs
88#endif
89
90/* 5.10.0 */
91#ifndef SvREFCNT_inc_NN
92# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
93#endif
94
95/* 5.8.8 */
96#ifndef GV_NOTQUAL
97# define GV_NOTQUAL 0
98#endif
99#ifndef newSV
100# define newSV(l) NEWSV(0,l)
101#endif
102#ifndef CvISXSUB_on
103# define CvISXSUB_on(cv) (void)cv
104#endif
105#ifndef CvISXSUB
106# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
107#endif
108#ifndef Newx
109# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
110#endif
111
112/* 5.8.7 */
113#ifndef SvRV_set
114# define SvRV_set(s,v) SvRV(s) = (v)
115#endif
116
117#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 66#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
118# undef CORO_STACKGUARD 67# undef CORO_STACKGUARD
119#endif 68#endif
120 69
121#ifndef CORO_STACKGUARD 70#ifndef CORO_STACKGUARD
… …
135#else 84#else
136# define dSTACKLEVEL volatile void *stacklevel 85# define dSTACKLEVEL volatile void *stacklevel
137# define STACKLEVEL ((void *)&stacklevel) 86# define STACKLEVEL ((void *)&stacklevel)
138#endif 87#endif
139 88
140#define IN_DESTRUCT (PL_main_cv == Nullcv) 89#define IN_DESTRUCT PL_dirty
141 90
142#if __GNUC__ >= 3 91#if __GNUC__ >= 3
143# define attribute(x) __attribute__(x) 92# define attribute(x) __attribute__(x)
144# define expect(expr,value) __builtin_expect ((expr),(value)) 93# define expect(expr,value) __builtin_expect ((expr), (value))
145# define INLINE static inline 94# define INLINE static inline
146#else 95#else
147# define attribute(x) 96# define attribute(x)
148# define expect(expr,value) (expr) 97# define expect(expr,value) (expr)
149# define INLINE static 98# define INLINE static
… …
161# if CORO_PTHREAD 110# if CORO_PTHREAD
162static void *coro_thx; 111static void *coro_thx;
163# endif 112# endif
164#endif 113#endif
165 114
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
166static 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]);
167 127
168/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
169#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
170static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
171 131
… …
177static HV *coro_state_stash, *coro_stash; 137static HV *coro_state_stash, *coro_stash;
178static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 138static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
179 139
180static AV *av_destroy; /* destruction queue */ 140static AV *av_destroy; /* destruction queue */
181static SV *sv_manager; /* the manager coro */ 141static SV *sv_manager; /* the manager coro */
142static SV *sv_idle; /* $Coro::idle */
182 143
183static GV *irsgv; /* $/ */ 144static GV *irsgv; /* $/ */
184static GV *stdoutgv; /* *STDOUT */ 145static GV *stdoutgv; /* *STDOUT */
185static SV *rv_diehook; 146static SV *rv_diehook;
186static SV *rv_warnhook; 147static SV *rv_warnhook;
… …
191static SV *sv_pool_size; 152static SV *sv_pool_size;
192static SV *sv_async_pool_idle; /* description string */ 153static SV *sv_async_pool_idle; /* description string */
193static AV *av_async_pool; /* idle pool */ 154static AV *av_async_pool; /* idle pool */
194static SV *sv_Coro; /* class string */ 155static SV *sv_Coro; /* class string */
195static CV *cv_pool_handler; 156static CV *cv_pool_handler;
196static CV *cv_coro_state_new;
197 157
198/* Coro::AnyEvent */ 158/* Coro::AnyEvent */
199static 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;
200 166
201static struct coro_cctx *cctx_first; 167static struct coro_cctx *cctx_first;
202static int cctx_count, cctx_idle; 168static int cctx_count, cctx_idle;
203 169
204enum { 170enum {
… …
230 int valgrind_id; 196 int valgrind_id;
231#endif 197#endif
232 unsigned char flags; 198 unsigned char flags;
233} coro_cctx; 199} coro_cctx;
234 200
201static coro_cctx *cctx_current; /* the currently running cctx */
202
203/*****************************************************************************/
204
235enum { 205enum {
236 CF_RUNNING = 0x0001, /* coroutine is running */ 206 CF_RUNNING = 0x0001, /* coroutine is running */
237 CF_READY = 0x0002, /* coroutine is ready */ 207 CF_READY = 0x0002, /* coroutine is ready */
238 CF_NEW = 0x0004, /* has never been switched to */ 208 CF_NEW = 0x0004, /* has never been switched to */
239 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 */
211 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
240}; 212};
241 213
242/* the structure where most of the perl state is stored, overlaid on the cxstack */ 214/* the structure where most of the perl state is stored, overlaid on the cxstack */
243typedef struct 215typedef struct
244{ 216{
245 SV *defsv; 217 SV *defsv;
246 AV *defav; 218 AV *defav;
247 SV *errsv; 219 SV *errsv;
248 SV *irsgv; 220 SV *irsgv;
221 HV *hinthv;
249#define VAR(name,type) type name; 222#define VAR(name,type) type name;
250# include "state.h" 223# include "state.h"
251#undef VAR 224#undef VAR
252} perl_slots; 225} perl_slots;
253 226
… …
255 228
256/* this is a structure representing a perl-level coroutine */ 229/* this is a structure representing a perl-level coroutine */
257struct coro { 230struct coro {
258 /* the C coroutine allocated to this perl coroutine, if any */ 231 /* the C coroutine allocated to this perl coroutine, if any */
259 coro_cctx *cctx; 232 coro_cctx *cctx;
233
234 /* ready queue */
235 struct coro *next_ready;
260 236
261 /* state data */ 237 /* state data */
262 struct CoroSLF slf_frame; /* saved slf frame */ 238 struct CoroSLF slf_frame; /* saved slf frame */
263 AV *mainstack; 239 AV *mainstack;
264 perl_slots *slot; /* basically the saved sp */ 240 perl_slots *slot; /* basically the saved sp */
… …
266 CV *startcv; /* the CV to execute */ 242 CV *startcv; /* the CV to execute */
267 AV *args; /* data associated with this coroutine (initial args) */ 243 AV *args; /* data associated with this coroutine (initial args) */
268 int refcnt; /* coroutines are refcounted, yes */ 244 int refcnt; /* coroutines are refcounted, yes */
269 int flags; /* CF_ flags */ 245 int flags; /* CF_ flags */
270 HV *hv; /* the perl hash associated with this coro, if any */ 246 HV *hv; /* the perl hash associated with this coro, if any */
271 void (*on_destroy)(pTHX_ struct coro *coro); 247 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
272 248
273 /* statistics */ 249 /* statistics */
274 int usecount; /* number of transfers to this coro */ 250 int usecount; /* number of transfers to this coro */
275 251
276 /* coro process data */ 252 /* coro process data */
… …
281 /* async_pool */ 257 /* async_pool */
282 SV *saved_deffh; 258 SV *saved_deffh;
283 SV *invoke_cb; 259 SV *invoke_cb;
284 AV *invoke_av; 260 AV *invoke_av;
285 261
262 /* on_enter/on_leave */
263 AV *on_enter;
264 AV *on_leave;
265
266 /* swap_sv */
267 AV *swap_sv;
268
269 /* times */
270 coro_ts t_cpu, t_real;
271
286 /* linked list */ 272 /* linked list */
287 struct coro *next, *prev; 273 struct coro *next, *prev;
288}; 274};
289 275
290typedef struct coro *Coro__State; 276typedef struct coro *Coro__State;
291typedef struct coro *Coro__State_or_hashref; 277typedef struct coro *Coro__State_or_hashref;
292 278
293/* the following variables are effectively part of the perl context */ 279/* the following variables are effectively part of the perl context */
294/* and get copied between struct coro and these variables */ 280/* and get copied between struct coro and these variables */
295/* the mainr easonw e don't support windows process emulation */ 281/* the main reason we don't support windows process emulation */
296static struct CoroSLF slf_frame; /* the current slf frame */ 282static struct CoroSLF slf_frame; /* the current slf frame */
297 283
298/** Coro ********************************************************************/ 284/** Coro ********************************************************************/
299 285
300#define PRIO_MAX 3 286#define CORO_PRIO_MAX 3
301#define PRIO_HIGH 1 287#define CORO_PRIO_HIGH 1
302#define PRIO_NORMAL 0 288#define CORO_PRIO_NORMAL 0
303#define PRIO_LOW -1 289#define CORO_PRIO_LOW -1
304#define PRIO_IDLE -3 290#define CORO_PRIO_IDLE -3
305#define PRIO_MIN -4 291#define CORO_PRIO_MIN -4
306 292
307/* for Coro.pm */ 293/* for Coro.pm */
308static SV *coro_current; 294static SV *coro_current;
309static SV *coro_readyhook; 295static SV *coro_readyhook;
310static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 296static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
311static CV *cv_coro_run, *cv_coro_terminate; 297static CV *cv_coro_run, *cv_coro_terminate;
312static struct coro *coro_first; 298static struct coro *coro_first;
313#define coro_nready coroapi.nready 299#define coro_nready coroapi.nready
300
301/** Coro::Select ************************************************************/
302
303static OP *(*coro_old_pp_sselect) (pTHX);
304static SV *coro_select_select;
305
306/* horrible hack, but if it works... */
307static OP *
308coro_pp_sselect (pTHX)
309{
310 dSP;
311 PUSHMARK (SP - 4); /* fake argument list */
312 XPUSHs (coro_select_select);
313 PUTBACK;
314
315 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
316 PL_op->op_flags |= OPf_STACKED;
317 PL_op->op_private = 0;
318 return PL_ppaddr [OP_ENTERSUB](aTHX);
319}
320
321/** time stuff **************************************************************/
322
323#ifdef HAS_GETTIMEOFDAY
324
325static void
326coro_u2time (pTHX_ UV ret[2])
327{
328 struct timeval tv;
329 gettimeofday (&tv, 0);
330
331 ret [0] = tv.tv_sec;
332 ret [1] = tv.tv_usec;
333}
334
335static double
336coro_nvtime ()
337{
338 struct timeval tv;
339 gettimeofday (&tv, 0);
340
341 return tv.tv_sec + tv.tv_usec * 1e-6;
342}
343
344static void
345time_init (pTHX)
346{
347 nvtime = coro_nvtime;
348 u2time = coro_u2time;
349}
350
351#else
352
353static void
354time_init (pTHX)
355{
356 SV **svp;
357
358 require_pv ("Time/HiRes.pm");
359
360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
361
362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
364
365 nvtime = INT2PTR (double (*)(), SvIV (*svp));
366
367 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
368 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
369}
370
371#endif
314 372
315/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
316 374
317static SV * 375static SV *
318coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
… …
342 get_hv (name, create); 400 get_hv (name, create);
343#endif 401#endif
344 return get_hv (name, create); 402 return get_hv (name, create);
345} 403}
346 404
347/* may croak */ 405INLINE void
348INLINE CV * 406coro_times_update ()
349coro_sv_2cv (pTHX_ SV *sv)
350{ 407{
408#ifdef coro_clock_gettime
409 struct timespec ts;
410
411 ts.tv_sec = ts.tv_nsec = 0;
412 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
413 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
414
415 ts.tv_sec = ts.tv_nsec = 0;
416 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
417 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
418#else
419 dTHX;
420 UV tv[2];
421
422 u2time (aTHX_ tv);
423 time_real [0] = tv [0];
424 time_real [1] = tv [1] * 1000;
425#endif
426}
427
428INLINE void
429coro_times_add (struct coro *c)
430{
431 c->t_real [1] += time_real [1];
432 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
433 c->t_real [0] += time_real [0];
434
435 c->t_cpu [1] += time_cpu [1];
436 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
437 c->t_cpu [0] += time_cpu [0];
438}
439
440INLINE void
441coro_times_sub (struct coro *c)
442{
443 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
444 c->t_real [1] -= time_real [1];
445 c->t_real [0] -= time_real [0];
446
447 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
448 c->t_cpu [1] -= time_cpu [1];
449 c->t_cpu [0] -= time_cpu [0];
450}
451
452/*****************************************************************************/
453/* magic glue */
454
455#define CORO_MAGIC_type_cv 26
456#define CORO_MAGIC_type_state PERL_MAGIC_ext
457
458#define CORO_MAGIC_NN(sv, type) \
459 (expect_true (SvMAGIC (sv)->mg_type == type) \
460 ? SvMAGIC (sv) \
461 : mg_find (sv, type))
462
463#define CORO_MAGIC(sv, type) \
464 (expect_true (SvMAGIC (sv)) \
465 ? CORO_MAGIC_NN (sv, type) \
466 : 0)
467
468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
470
471INLINE struct coro *
472SvSTATE_ (pTHX_ SV *coro)
473{
351 HV *st; 474 HV *stash;
352 GV *gvp; 475 MAGIC *mg;
353 return sv_2cv (sv, &st, &gvp, 0); 476
477 if (SvROK (coro))
478 coro = SvRV (coro);
479
480 if (expect_false (SvTYPE (coro) != SVt_PVHV))
481 croak ("Coro::State object required");
482
483 stash = SvSTASH (coro);
484 if (expect_false (stash != coro_stash && stash != coro_state_stash))
485 {
486 /* very slow, but rare, check */
487 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
488 croak ("Coro::State object required");
489 }
490
491 mg = CORO_MAGIC_state (coro);
492 return (struct coro *)mg->mg_ptr;
354} 493}
494
495#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
496
497/* faster than SvSTATE, but expects a coroutine hv */
498#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
499#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
500
501/*****************************************************************************/
502/* padlist management and caching */
355 503
356static AV * 504static AV *
357coro_derive_padlist (pTHX_ CV *cv) 505coro_derive_padlist (pTHX_ CV *cv)
358{ 506{
359 AV *padlist = CvPADLIST (cv); 507 AV *padlist = CvPADLIST (cv);
… …
367 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 515 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
368#endif 516#endif
369 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 517 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
370 --AvFILLp (padlist); 518 --AvFILLp (padlist);
371 519
372 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 520 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
373 av_store (newpadlist, 1, (SV *)newpad); 521 av_store (newpadlist, 1, (SV *)newpad);
374 522
375 return newpadlist; 523 return newpadlist;
376} 524}
377 525
378static void 526static void
379free_padlist (pTHX_ AV *padlist) 527free_padlist (pTHX_ AV *padlist)
380{ 528{
381 /* may be during global destruction */ 529 /* may be during global destruction */
382 if (SvREFCNT (padlist)) 530 if (!IN_DESTRUCT)
383 { 531 {
384 I32 i = AvFILLp (padlist); 532 I32 i = AvFILLp (padlist);
385 while (i >= 0) 533
534 while (i > 0) /* special-case index 0 */
386 { 535 {
387 SV **svp = av_fetch (padlist, i--, FALSE); 536 /* we try to be extra-careful here */
388 if (svp) 537 AV *av = (AV *)AvARRAY (padlist)[i--];
389 { 538 I32 j = AvFILLp (av);
390 SV *sv; 539
391 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 540 while (j >= 0)
541 SvREFCNT_dec (AvARRAY (av)[j--]);
542
543 AvFILLp (av) = -1;
392 SvREFCNT_dec (sv); 544 SvREFCNT_dec (av);
393
394 SvREFCNT_dec (*svp);
395 }
396 } 545 }
397 546
547 SvREFCNT_dec (AvARRAY (padlist)[0]);
548
549 AvFILLp (padlist) = -1;
398 SvREFCNT_dec ((SV*)padlist); 550 SvREFCNT_dec ((SV*)padlist);
399 } 551 }
400} 552}
401 553
402static int 554static int
403coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 555coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
404{ 556{
405 AV *padlist; 557 AV *padlist;
406 AV *av = (AV *)mg->mg_obj; 558 AV *av = (AV *)mg->mg_obj;
559
560 /* perl manages to free our internal AV and _then_ call us */
561 if (IN_DESTRUCT)
562 return 0;
407 563
408 /* casting is fun. */ 564 /* casting is fun. */
409 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 565 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
410 free_padlist (aTHX_ padlist); 566 free_padlist (aTHX_ padlist);
411 567
412 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 568 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
413 569
414 return 0; 570 return 0;
415} 571}
416
417#define CORO_MAGIC_type_cv 26
418#define CORO_MAGIC_type_state PERL_MAGIC_ext
419 572
420static MGVTBL coro_cv_vtbl = { 573static MGVTBL coro_cv_vtbl = {
421 0, 0, 0, 0, 574 0, 0, 0, 0,
422 coro_cv_free 575 coro_cv_free
423}; 576};
424
425#define CORO_MAGIC_NN(sv, type) \
426 (expect_true (SvMAGIC (sv)->mg_type == type) \
427 ? SvMAGIC (sv) \
428 : mg_find (sv, type))
429
430#define CORO_MAGIC(sv, type) \
431 (expect_true (SvMAGIC (sv)) \
432 ? CORO_MAGIC_NN (sv, type) \
433 : 0)
434
435#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
436#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
437
438INLINE struct coro *
439SvSTATE_ (pTHX_ SV *coro)
440{
441 HV *stash;
442 MAGIC *mg;
443
444 if (SvROK (coro))
445 coro = SvRV (coro);
446
447 if (expect_false (SvTYPE (coro) != SVt_PVHV))
448 croak ("Coro::State object required");
449
450 stash = SvSTASH (coro);
451 if (expect_false (stash != coro_stash && stash != coro_state_stash))
452 {
453 /* very slow, but rare, check */
454 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
455 croak ("Coro::State object required");
456 }
457
458 mg = CORO_MAGIC_state (coro);
459 return (struct coro *)mg->mg_ptr;
460}
461
462#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
463
464/* faster than SvSTATE, but expects a coroutine hv */
465#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
466#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
467 577
468/* the next two functions merely cache the padlists */ 578/* the next two functions merely cache the padlists */
469static void 579static void
470get_padlist (pTHX_ CV *cv) 580get_padlist (pTHX_ CV *cv)
471{ 581{
… …
499 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 609 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
500 610
501 av = (AV *)mg->mg_obj; 611 av = (AV *)mg->mg_obj;
502 612
503 if (expect_false (AvFILLp (av) >= AvMAX (av))) 613 if (expect_false (AvFILLp (av) >= AvMAX (av)))
504 av_extend (av, AvMAX (av) + 1); 614 av_extend (av, AvFILLp (av) + 1);
505 615
506 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 616 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
507} 617}
508 618
509/** load & save, init *******************************************************/ 619/** load & save, init *******************************************************/
620
621/* swap sv heads, at least logically */
622static void
623swap_svs (pTHX_ Coro__State c)
624{
625 int i;
626
627 for (i = 0; i <= AvFILLp (c->swap_sv); )
628 {
629 SV *a = AvARRAY (c->swap_sv)[i++];
630 SV *b = AvARRAY (c->swap_sv)[i++];
631
632 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633 SV tmp;
634
635 /* swap sv_any */
636 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638 /* swap sv_flags */
639 SvFLAGS (&tmp) = SvFLAGS (a);
640 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643#if PERL_VERSION_ATLEAST (5,10,0)
644 /* perl 5.10 complicates this _quite_ a bit, but it also is
645 * much faster, so no quarrels here. alternatively, we could
646 * sv_upgrade to avoid this.
647 */
648 {
649 /* swap sv_u */
650 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652 /* if SvANY points to the head, we need to adjust the pointers,
653 * as the pointer for a still points to b, and maybe vice versa.
654 */
655 #define svany_in_head(type) \
656 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658 if (svany_in_head (SvTYPE (a)))
659 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661 if (svany_in_head (SvTYPE (b)))
662 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663 }
664#endif
665 }
666}
667
668#define SWAP_SVS(coro) \
669 if (expect_false ((coro)->swap_sv)) \
670 swap_svs (aTHX_ (coro))
671
672static void
673on_enterleave_call (pTHX_ SV *cb);
510 674
511static void 675static void
512load_perl (pTHX_ Coro__State c) 676load_perl (pTHX_ Coro__State c)
513{ 677{
514 perl_slots *slot = c->slot; 678 perl_slots *slot = c->slot;
515 c->slot = 0; 679 c->slot = 0;
516 680
517 PL_mainstack = c->mainstack; 681 PL_mainstack = c->mainstack;
518 682
519 GvSV (PL_defgv) = slot->defsv; 683 GvSV (PL_defgv) = slot->defsv;
520 GvAV (PL_defgv) = slot->defav; 684 GvAV (PL_defgv) = slot->defav;
521 GvSV (PL_errgv) = slot->errsv; 685 GvSV (PL_errgv) = slot->errsv;
522 GvSV (irsgv) = slot->irsgv; 686 GvSV (irsgv) = slot->irsgv;
687 GvHV (PL_hintgv) = slot->hinthv;
523 688
524 #define VAR(name,type) PL_ ## name = slot->name; 689 #define VAR(name,type) PL_ ## name = slot->name;
525 # include "state.h" 690 # include "state.h"
526 #undef VAR 691 #undef VAR
527 692
… …
541 PUTBACK; 706 PUTBACK;
542 } 707 }
543 708
544 slf_frame = c->slf_frame; 709 slf_frame = c->slf_frame;
545 CORO_THROW = c->except; 710 CORO_THROW = c->except;
711
712 if (expect_false (enable_times))
713 {
714 if (expect_false (!times_valid))
715 coro_times_update ();
716
717 coro_times_sub (c);
718 }
719
720 if (expect_false (c->on_enter))
721 {
722 int i;
723
724 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
725 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
726 }
727
728 SWAP_SVS (c);
546} 729}
547 730
548static void 731static void
549save_perl (pTHX_ Coro__State c) 732save_perl (pTHX_ Coro__State c)
550{ 733{
734 SWAP_SVS (c);
735
736 if (expect_false (c->on_leave))
737 {
738 int i;
739
740 for (i = AvFILLp (c->on_leave); i >= 0; --i)
741 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
742 }
743
744 times_valid = 0;
745
746 if (expect_false (enable_times))
747 {
748 coro_times_update (); times_valid = 1;
749 coro_times_add (c);
750 }
751
551 c->except = CORO_THROW; 752 c->except = CORO_THROW;
552 c->slf_frame = slf_frame; 753 c->slf_frame = slf_frame;
553 754
554 { 755 {
555 dSP; 756 dSP;
… …
568 { 769 {
569 while (expect_true (cxix >= 0)) 770 while (expect_true (cxix >= 0))
570 { 771 {
571 PERL_CONTEXT *cx = &ccstk[cxix--]; 772 PERL_CONTEXT *cx = &ccstk[cxix--];
572 773
573 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 774 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
574 { 775 {
575 CV *cv = cx->blk_sub.cv; 776 CV *cv = cx->blk_sub.cv;
576 777
577 if (expect_true (CvDEPTH (cv))) 778 if (expect_true (CvDEPTH (cv)))
578 { 779 {
… …
602 /* we manually unroll here, as usually 2 slots is enough */ 803 /* we manually unroll here, as usually 2 slots is enough */
603 if (SLOT_COUNT >= 1) CXINC; 804 if (SLOT_COUNT >= 1) CXINC;
604 if (SLOT_COUNT >= 2) CXINC; 805 if (SLOT_COUNT >= 2) CXINC;
605 if (SLOT_COUNT >= 3) CXINC; 806 if (SLOT_COUNT >= 3) CXINC;
606 { 807 {
607 int i; 808 unsigned int i;
608 for (i = 3; i < SLOT_COUNT; ++i) 809 for (i = 3; i < SLOT_COUNT; ++i)
609 CXINC; 810 CXINC;
610 } 811 }
611 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 812 cxstack_ix -= SLOT_COUNT; /* undo allocation */
612 813
613 c->mainstack = PL_mainstack; 814 c->mainstack = PL_mainstack;
614 815
615 { 816 {
616 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 817 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
617 818
618 slot->defav = GvAV (PL_defgv); 819 slot->defav = GvAV (PL_defgv);
619 slot->defsv = DEFSV; 820 slot->defsv = DEFSV;
620 slot->errsv = ERRSV; 821 slot->errsv = ERRSV;
621 slot->irsgv = GvSV (irsgv); 822 slot->irsgv = GvSV (irsgv);
823 slot->hinthv = GvHV (PL_hintgv);
622 824
623 #define VAR(name,type) slot->name = PL_ ## name; 825 #define VAR(name,type) slot->name = PL_ ## name;
624 # include "state.h" 826 # include "state.h"
625 #undef VAR 827 #undef VAR
626 } 828 }
… …
753#endif 955#endif
754 956
755/* 957/*
756 * This overrides the default magic get method of %SIG elements. 958 * This overrides the default magic get method of %SIG elements.
757 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 959 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
758 * and instead of tryign to save and restore the hash elements, we just provide 960 * and instead of trying to save and restore the hash elements, we just provide
759 * readback here. 961 * readback here.
760 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
761 * not expecting this to actually change the hook. This is a potential problem
762 * when a schedule happens then, but we ignore this.
763 */ 962 */
764static int 963static int
765coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 964coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
766{ 965{
767 const char *s = MgPV_nolen_const (mg); 966 const char *s = MgPV_nolen_const (mg);
… …
820 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1019 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
821 1020
822 if (svp) 1021 if (svp)
823 { 1022 {
824 SV *old = *svp; 1023 SV *old = *svp;
825 *svp = newSVsv (sv); 1024 *svp = SvOK (sv) ? newSVsv (sv) : 0;
826 SvREFCNT_dec (old); 1025 SvREFCNT_dec (old);
827 return 0; 1026 return 0;
828 } 1027 }
829 } 1028 }
830 1029
… …
848slf_check_repeat (pTHX_ struct CoroSLF *frame) 1047slf_check_repeat (pTHX_ struct CoroSLF *frame)
849{ 1048{
850 return 1; 1049 return 1;
851} 1050}
852 1051
853static UNOP coro_setup_op; 1052static UNOP init_perl_op;
854 1053
855static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1054static void NOINLINE /* noinline to keep it out of the transfer fast path */
856coro_setup (pTHX_ struct coro *coro) 1055init_perl (pTHX_ struct coro *coro)
857{ 1056{
858 /* 1057 /*
859 * emulate part of the perl startup here. 1058 * emulate part of the perl startup here.
860 */ 1059 */
861 coro_init_stacks (aTHX); 1060 coro_init_stacks (aTHX);
862 1061
863 PL_runops = RUNOPS_DEFAULT; 1062 PL_runops = RUNOPS_DEFAULT;
864 PL_curcop = &PL_compiling; 1063 PL_curcop = &PL_compiling;
865 PL_in_eval = EVAL_NULL; 1064 PL_in_eval = EVAL_NULL;
866 PL_comppad = 0; 1065 PL_comppad = 0;
1066 PL_comppad_name = 0;
1067 PL_comppad_name_fill = 0;
1068 PL_comppad_name_floor = 0;
867 PL_curpm = 0; 1069 PL_curpm = 0;
868 PL_curpad = 0; 1070 PL_curpad = 0;
869 PL_localizing = 0; 1071 PL_localizing = 0;
870 PL_dirty = 0;
871 PL_restartop = 0; 1072 PL_restartop = 0;
872#if PERL_VERSION_ATLEAST (5,10,0) 1073#if PERL_VERSION_ATLEAST (5,10,0)
873 PL_parser = 0; 1074 PL_parser = 0;
874#endif 1075#endif
1076 PL_hints = 0;
875 1077
876 /* recreate the die/warn hooks */ 1078 /* recreate the die/warn hooks */
877 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1079 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
878 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1080 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
879 1081
880 GvSV (PL_defgv) = newSV (0); 1082 GvSV (PL_defgv) = newSV (0);
881 GvAV (PL_defgv) = coro->args; coro->args = 0; 1083 GvAV (PL_defgv) = coro->args; coro->args = 0;
882 GvSV (PL_errgv) = newSV (0); 1084 GvSV (PL_errgv) = newSV (0);
883 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1085 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1086 GvHV (PL_hintgv) = 0;
884 PL_rs = newSVsv (GvSV (irsgv)); 1087 PL_rs = newSVsv (GvSV (irsgv));
885 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1088 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
886 1089
887 { 1090 {
888 dSP; 1091 dSP;
… …
905 */ 1108 */
906 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1109 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
907 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1110 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
908 1111
909 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
910 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
911 coro_setup_op.op_type = OP_ENTERSUB; 1114 init_perl_op.op_type = OP_ENTERSUB;
912 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
913 /* no flags etc. required, as an init function won't be called */ 1116 /* no flags etc. required, as an init function won't be called */
914 1117
915 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
916 1119
917 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
918 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
919}
920 1122
1123 SWAP_SVS (coro);
1124
1125 if (expect_false (enable_times))
1126 {
1127 coro_times_update ();
1128 coro_times_sub (coro);
1129 }
1130}
1131
921static void 1132static void
922coro_destruct (pTHX_ struct coro *coro) 1133coro_unwind_stacks (pTHX)
923{ 1134{
924 if (!IN_DESTRUCT) 1135 if (!IN_DESTRUCT)
925 { 1136 {
926 /* restore all saved variables and stuff */ 1137 /* restore all saved variables and stuff */
927 LEAVE_SCOPE (0); 1138 LEAVE_SCOPE (0);
… …
935 POPSTACK_TO (PL_mainstack); 1146 POPSTACK_TO (PL_mainstack);
936 1147
937 /* unwind main stack */ 1148 /* unwind main stack */
938 dounwind (-1); 1149 dounwind (-1);
939 } 1150 }
1151}
940 1152
941 SvREFCNT_dec (GvSV (PL_defgv)); 1153static void
942 SvREFCNT_dec (GvAV (PL_defgv)); 1154destroy_perl (pTHX_ struct coro *coro)
943 SvREFCNT_dec (GvSV (PL_errgv)); 1155{
944 SvREFCNT_dec (PL_defoutgv); 1156 SV *svf [9];
945 SvREFCNT_dec (PL_rs);
946 SvREFCNT_dec (GvSV (irsgv));
947 1157
948 SvREFCNT_dec (PL_diehook);
949 SvREFCNT_dec (PL_warnhook);
950 1158 {
1159 struct coro *current = SvSTATE_current;
1160
1161 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1162
1163 save_perl (aTHX_ current);
1164 load_perl (aTHX_ coro);
1165
1166 coro_unwind_stacks (aTHX);
1167 coro_destruct_stacks (aTHX);
1168
1169 /* restore swapped sv's */
1170 SWAP_SVS (coro);
1171
1172 // now save some sv's to be free'd later
1173 svf [0] = GvSV (PL_defgv);
1174 svf [1] = (SV *)GvAV (PL_defgv);
1175 svf [2] = GvSV (PL_errgv);
1176 svf [3] = (SV *)PL_defoutgv;
1177 svf [4] = PL_rs;
1178 svf [5] = GvSV (irsgv);
1179 svf [6] = (SV *)GvHV (PL_hintgv);
1180 svf [7] = PL_diehook;
1181 svf [8] = PL_warnhook;
1182 assert (9 == sizeof (svf) / sizeof (*svf));
1183
1184 load_perl (aTHX_ current);
1185 }
1186
1187 {
1188 unsigned int i;
1189
1190 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1191 SvREFCNT_dec (svf [i]);
1192
951 SvREFCNT_dec (coro->saved_deffh); 1193 SvREFCNT_dec (coro->saved_deffh);
952 SvREFCNT_dec (coro->rouse_cb); 1194 SvREFCNT_dec (coro->rouse_cb);
953 SvREFCNT_dec (coro->invoke_cb); 1195 SvREFCNT_dec (coro->invoke_cb);
954 SvREFCNT_dec (coro->invoke_av); 1196 SvREFCNT_dec (coro->invoke_av);
955 1197 }
956 coro_destruct_stacks (aTHX);
957} 1198}
958 1199
959INLINE void 1200INLINE void
960free_coro_mortal (pTHX) 1201free_coro_mortal (pTHX)
961{ 1202{
… …
969static int 1210static int
970runops_trace (pTHX) 1211runops_trace (pTHX)
971{ 1212{
972 COP *oldcop = 0; 1213 COP *oldcop = 0;
973 int oldcxix = -2; 1214 int oldcxix = -2;
974 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
975 coro_cctx *cctx = coro->cctx;
976 1215
977 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1216 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
978 { 1217 {
979 PERL_ASYNC_CHECK (); 1218 PERL_ASYNC_CHECK ();
980 1219
981 if (cctx->flags & CC_TRACE_ALL) 1220 if (cctx_current->flags & CC_TRACE_ALL)
982 { 1221 {
983 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1222 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
984 { 1223 {
985 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1224 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
986 SV **bot, **top; 1225 SV **bot, **top;
987 AV *av = newAV (); /* return values */ 1226 AV *av = newAV (); /* return values */
988 SV **cb; 1227 SV **cb;
… …
1025 1264
1026 if (PL_curcop != &PL_compiling) 1265 if (PL_curcop != &PL_compiling)
1027 { 1266 {
1028 SV **cb; 1267 SV **cb;
1029 1268
1030 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1269 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1031 { 1270 {
1032 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1271 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1033 1272
1034 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1273 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1035 { 1274 {
… …
1058 } 1297 }
1059 1298
1060 oldcxix = cxstack_ix; 1299 oldcxix = cxstack_ix;
1061 } 1300 }
1062 1301
1063 if (cctx->flags & CC_TRACE_LINE) 1302 if (cctx_current->flags & CC_TRACE_LINE)
1064 { 1303 {
1065 dSP; 1304 dSP;
1066 1305
1067 PL_runops = RUNOPS_DEFAULT; 1306 PL_runops = RUNOPS_DEFAULT;
1068 ENTER; 1307 ENTER;
… …
1087 1326
1088 TAINT_NOT; 1327 TAINT_NOT;
1089 return 0; 1328 return 0;
1090} 1329}
1091 1330
1092static struct coro_cctx *cctx_ssl_cctx;
1093static struct CoroSLF cctx_ssl_frame; 1331static struct CoroSLF cctx_ssl_frame;
1094 1332
1095static void 1333static void
1096slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1334slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1097{ 1335{
1098 ta->prev = (struct coro *)cctx_ssl_cctx;
1099 ta->next = 0; 1336 ta->prev = 0;
1100} 1337}
1101 1338
1102static int 1339static int
1103slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1340slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1104{ 1341{
… …
1107 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1344 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1108} 1345}
1109 1346
1110/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1347/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1111static void NOINLINE 1348static void NOINLINE
1112cctx_prepare (pTHX_ coro_cctx *cctx) 1349cctx_prepare (pTHX)
1113{ 1350{
1114 PL_top_env = &PL_start_env; 1351 PL_top_env = &PL_start_env;
1115 1352
1116 if (cctx->flags & CC_TRACE) 1353 if (cctx_current->flags & CC_TRACE)
1117 PL_runops = runops_trace; 1354 PL_runops = runops_trace;
1118 1355
1119 /* we already must be executing an SLF op, there is no other valid way 1356 /* we already must be executing an SLF op, there is no other valid way
1120 * that can lead to creation of a new cctx */ 1357 * that can lead to creation of a new cctx */
1121 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1358 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1122 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1359 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1123 1360
1124 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1361 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1125 cctx_ssl_cctx = cctx;
1126 cctx_ssl_frame = slf_frame; 1362 cctx_ssl_frame = slf_frame;
1127 1363
1128 slf_frame.prepare = slf_prepare_set_stacklevel; 1364 slf_frame.prepare = slf_prepare_set_stacklevel;
1129 slf_frame.check = slf_check_set_stacklevel; 1365 slf_frame.check = slf_check_set_stacklevel;
1130} 1366}
… …
1153 /* normally we would need to skip the entersub here */ 1389 /* normally we would need to skip the entersub here */
1154 /* not doing so will re-execute it, which is exactly what we want */ 1390 /* not doing so will re-execute it, which is exactly what we want */
1155 /* PL_nop = PL_nop->op_next */ 1391 /* PL_nop = PL_nop->op_next */
1156 1392
1157 /* inject a fake subroutine call to cctx_init */ 1393 /* inject a fake subroutine call to cctx_init */
1158 cctx_prepare (aTHX_ (coro_cctx *)arg); 1394 cctx_prepare (aTHX);
1159 1395
1160 /* cctx_run is the alternative tail of transfer() */ 1396 /* cctx_run is the alternative tail of transfer() */
1161 transfer_tail (aTHX); 1397 transfer_tail (aTHX);
1162 1398
1163 /* somebody or something will hit me for both perl_run and PL_restartop */ 1399 /* somebody or something will hit me for both perl_run and PL_restartop */
1164 PL_restartop = PL_op; 1400 PL_restartop = PL_op;
1165 perl_run (PL_curinterp); 1401 perl_run (PL_curinterp);
1166 /* 1402 /*
1167 * Unfortunately, there is no way to get at the return values of the 1403 * Unfortunately, there is no way to get at the return values of the
1168 * coro body here, as perl_run destroys these 1404 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1405 * runtime errors here, as this is just a random interpreter, not a thread.
1169 */ 1406 */
1170 1407
1171 /* 1408 /*
1172 * If perl-run returns we assume exit() was being called or the coro 1409 * If perl-run returns we assume exit() was being called or the coro
1173 * fell off the end, which seems to be the only valid (non-bug) 1410 * fell off the end, which seems to be the only valid (non-bug)
1174 * reason for perl_run to return. We try to exit by jumping to the 1411 * reason for perl_run to return. We try to exit by jumping to the
1175 * bootstrap-time "top" top_env, as we cannot restore the "main" 1412 * bootstrap-time "top" top_env, as we cannot restore the "main"
1176 * coroutine as Coro has no such concept 1413 * coroutine as Coro has no such concept.
1414 * This actually isn't valid with the pthread backend, but OSes requiring
1415 * that backend are too broken to do it in a standards-compliant way.
1177 */ 1416 */
1178 PL_top_env = main_top_env; 1417 PL_top_env = main_top_env;
1179 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1418 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1180 } 1419 }
1181} 1420}
… …
1258cctx_destroy (coro_cctx *cctx) 1497cctx_destroy (coro_cctx *cctx)
1259{ 1498{
1260 if (!cctx) 1499 if (!cctx)
1261 return; 1500 return;
1262 1501
1502 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1503
1263 --cctx_count; 1504 --cctx_count;
1264 coro_destroy (&cctx->cctx); 1505 coro_destroy (&cctx->cctx);
1265 1506
1266 /* coro_transfer creates new, empty cctx's */ 1507 /* coro_transfer creates new, empty cctx's */
1267 if (cctx->sptr) 1508 if (cctx->sptr)
… …
1330 /* TODO: throwing up here is considered harmful */ 1571 /* TODO: throwing up here is considered harmful */
1331 1572
1332 if (expect_true (prev != next)) 1573 if (expect_true (prev != next))
1333 { 1574 {
1334 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1575 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1335 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1576 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1336 1577
1337 if (expect_false (next->flags & CF_RUNNING))
1338 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1339
1340 if (expect_false (next->flags & CF_DESTROYED)) 1578 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1341 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1579 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1342 1580
1343#if !PERL_VERSION_ATLEAST (5,10,0) 1581#if !PERL_VERSION_ATLEAST (5,10,0)
1344 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1582 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1345 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1583 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1346#endif 1584#endif
… …
1352transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1590transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1353{ 1591{
1354 dSTACKLEVEL; 1592 dSTACKLEVEL;
1355 1593
1356 /* sometimes transfer is only called to set idle_sp */ 1594 /* sometimes transfer is only called to set idle_sp */
1357 if (expect_false (!next)) 1595 if (expect_false (!prev))
1358 { 1596 {
1359 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1597 cctx_current->idle_sp = STACKLEVEL;
1360 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1598 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1361 } 1599 }
1362 else if (expect_true (prev != next)) 1600 else if (expect_true (prev != next))
1363 { 1601 {
1364 coro_cctx *prev__cctx; 1602 coro_cctx *cctx_prev;
1365 1603
1366 if (expect_false (prev->flags & CF_NEW)) 1604 if (expect_false (prev->flags & CF_NEW))
1367 { 1605 {
1368 /* create a new empty/source context */ 1606 /* create a new empty/source context */
1369 prev->cctx = cctx_new_empty ();
1370 prev->flags &= ~CF_NEW; 1607 prev->flags &= ~CF_NEW;
1371 prev->flags |= CF_RUNNING; 1608 prev->flags |= CF_RUNNING;
1372 } 1609 }
1373 1610
1374 prev->flags &= ~CF_RUNNING; 1611 prev->flags &= ~CF_RUNNING;
… …
1380 if (expect_false (next->flags & CF_NEW)) 1617 if (expect_false (next->flags & CF_NEW))
1381 { 1618 {
1382 /* need to start coroutine */ 1619 /* need to start coroutine */
1383 next->flags &= ~CF_NEW; 1620 next->flags &= ~CF_NEW;
1384 /* setup coroutine call */ 1621 /* setup coroutine call */
1385 coro_setup (aTHX_ next); 1622 init_perl (aTHX_ next);
1386 } 1623 }
1387 else 1624 else
1388 load_perl (aTHX_ next); 1625 load_perl (aTHX_ next);
1389 1626
1390 prev__cctx = prev->cctx;
1391
1392 /* possibly untie and reuse the cctx */ 1627 /* possibly untie and reuse the cctx */
1393 if (expect_true ( 1628 if (expect_true (
1394 prev__cctx->idle_sp == STACKLEVEL 1629 cctx_current->idle_sp == STACKLEVEL
1395 && !(prev__cctx->flags & CC_TRACE) 1630 && !(cctx_current->flags & CC_TRACE)
1396 && !force_cctx 1631 && !force_cctx
1397 )) 1632 ))
1398 { 1633 {
1399 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1634 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1400 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1635 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1401 1636
1402 prev->cctx = 0;
1403
1404 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1637 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1405 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1638 /* without this the next cctx_get might destroy the running cctx while still in use */
1406 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1639 if (expect_false (CCTX_EXPIRED (cctx_current)))
1407 if (!next->cctx) 1640 if (expect_true (!next->cctx))
1408 next->cctx = cctx_get (aTHX); 1641 next->cctx = cctx_get (aTHX);
1409 1642
1410 cctx_put (prev__cctx); 1643 cctx_put (cctx_current);
1411 } 1644 }
1645 else
1646 prev->cctx = cctx_current;
1412 1647
1413 ++next->usecount; 1648 ++next->usecount;
1414 1649
1415 if (expect_true (!next->cctx)) 1650 cctx_prev = cctx_current;
1416 next->cctx = cctx_get (aTHX); 1651 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1417 1652
1418 if (expect_false (prev__cctx != next->cctx)) 1653 next->cctx = 0;
1654
1655 if (expect_false (cctx_prev != cctx_current))
1419 { 1656 {
1420 prev__cctx->top_env = PL_top_env; 1657 cctx_prev->top_env = PL_top_env;
1421 PL_top_env = next->cctx->top_env; 1658 PL_top_env = cctx_current->top_env;
1422 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1659 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1423 } 1660 }
1424 1661
1425 transfer_tail (aTHX); 1662 transfer_tail (aTHX);
1426 } 1663 }
1427} 1664}
… …
1429#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1666#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1430#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1667#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1431 1668
1432/** high level stuff ********************************************************/ 1669/** high level stuff ********************************************************/
1433 1670
1434static int 1671static void
1435coro_state_destroy (pTHX_ struct coro *coro) 1672coro_state_destroy (pTHX_ struct coro *coro)
1436{ 1673{
1437 if (coro->flags & CF_DESTROYED) 1674 if (coro->flags & CF_DESTROYED)
1438 return 0; 1675 return;
1439 1676
1677 /* this callback is reserved for slf functions needing to do cleanup */
1440 if (coro->on_destroy) 1678 if (coro->on_destroy && !PL_dirty)
1441 coro->on_destroy (aTHX_ coro); 1679 coro->on_destroy (aTHX_ coro);
1680
1681 /*
1682 * The on_destroy above most likely is from an SLF call.
1683 * Since by definition the SLF call will not finish when we destroy
1684 * the coro, we will have to force-finish it here, otherwise
1685 * cleanup functions cannot call SLF functions.
1686 */
1687 coro->slf_frame.prepare = 0;
1442 1688
1443 coro->flags |= CF_DESTROYED; 1689 coro->flags |= CF_DESTROYED;
1444 1690
1445 if (coro->flags & CF_READY) 1691 if (coro->flags & CF_READY)
1446 { 1692 {
… …
1449 --coro_nready; 1695 --coro_nready;
1450 } 1696 }
1451 else 1697 else
1452 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1698 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1453 1699
1454 if (coro->mainstack && coro->mainstack != main_mainstack) 1700 if (coro->mainstack
1455 { 1701 && coro->mainstack != main_mainstack
1456 struct coro temp; 1702 && coro->slot
1457 1703 && !PL_dirty)
1458 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1459
1460 save_perl (aTHX_ &temp);
1461 load_perl (aTHX_ coro); 1704 destroy_perl (aTHX_ coro);
1462 1705
1463 coro_destruct (aTHX_ coro); 1706 if (coro->next) coro->next->prev = coro->prev;
1464 1707 if (coro->prev) coro->prev->next = coro->next;
1465 load_perl (aTHX_ &temp); 1708 if (coro == coro_first) coro_first = coro->next;
1466
1467 coro->slot = 0;
1468 }
1469 1709
1470 cctx_destroy (coro->cctx); 1710 cctx_destroy (coro->cctx);
1471 SvREFCNT_dec (coro->startcv); 1711 SvREFCNT_dec (coro->startcv);
1472 SvREFCNT_dec (coro->args); 1712 SvREFCNT_dec (coro->args);
1713 SvREFCNT_dec (coro->swap_sv);
1473 SvREFCNT_dec (CORO_THROW); 1714 SvREFCNT_dec (CORO_THROW);
1474
1475 if (coro->next) coro->next->prev = coro->prev;
1476 if (coro->prev) coro->prev->next = coro->next;
1477 if (coro == coro_first) coro_first = coro->next;
1478
1479 return 1;
1480} 1715}
1481 1716
1482static int 1717static int
1483coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1718coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1484{ 1719{
… …
1532 1767
1533 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1768 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1534 TRANSFER (ta, 1); 1769 TRANSFER (ta, 1);
1535} 1770}
1536 1771
1537/*****************************************************************************/
1538/* gensub: simple closure generation utility */
1539
1540#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1541
1542/* create a closure from XS, returns a code reference */
1543/* the arg can be accessed via GENSUB_ARG from the callback */
1544/* the callback must use dXSARGS/XSRETURN */
1545static SV *
1546gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1547{
1548 CV *cv = (CV *)newSV (0);
1549
1550 sv_upgrade ((SV *)cv, SVt_PVCV);
1551
1552 CvANON_on (cv);
1553 CvISXSUB_on (cv);
1554 CvXSUB (cv) = xsub;
1555 GENSUB_ARG = arg;
1556
1557 return newRV_noinc ((SV *)cv);
1558}
1559
1560/** Coro ********************************************************************/ 1772/** Coro ********************************************************************/
1561 1773
1562INLINE void 1774INLINE void
1563coro_enq (pTHX_ struct coro *coro) 1775coro_enq (pTHX_ struct coro *coro)
1564{ 1776{
1565 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1777 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1566}
1567 1778
1568INLINE SV * 1779 SvREFCNT_inc_NN (coro->hv);
1780
1781 coro->next_ready = 0;
1782 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1783 ready [1] = coro;
1784}
1785
1786INLINE struct coro *
1569coro_deq (pTHX) 1787coro_deq (pTHX)
1570{ 1788{
1571 int prio; 1789 int prio;
1572 1790
1573 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1791 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1574 if (AvFILLp (coro_ready [prio]) >= 0) 1792 {
1575 return av_shift (coro_ready [prio]); 1793 struct coro **ready = coro_ready [prio];
1794
1795 if (ready [0])
1796 {
1797 struct coro *coro = ready [0];
1798 ready [0] = coro->next_ready;
1799 return coro;
1800 }
1801 }
1576 1802
1577 return 0; 1803 return 0;
1804}
1805
1806static void
1807invoke_sv_ready_hook_helper (void)
1808{
1809 dTHX;
1810 dSP;
1811
1812 ENTER;
1813 SAVETMPS;
1814
1815 PUSHMARK (SP);
1816 PUTBACK;
1817 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1818
1819 FREETMPS;
1820 LEAVE;
1578} 1821}
1579 1822
1580static int 1823static int
1581api_ready (pTHX_ SV *coro_sv) 1824api_ready (pTHX_ SV *coro_sv)
1582{ 1825{
1583 struct coro *coro;
1584 SV *sv_hook;
1585 void (*xs_hook)(void);
1586
1587 if (SvROK (coro_sv))
1588 coro_sv = SvRV (coro_sv);
1589
1590 coro = SvSTATE (coro_sv); 1826 struct coro *coro = SvSTATE (coro_sv);
1591 1827
1592 if (coro->flags & CF_READY) 1828 if (coro->flags & CF_READY)
1593 return 0; 1829 return 0;
1594 1830
1595 coro->flags |= CF_READY; 1831 coro->flags |= CF_READY;
1596 1832
1597 sv_hook = coro_nready ? 0 : coro_readyhook;
1598 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1599
1600 coro_enq (aTHX_ coro); 1833 coro_enq (aTHX_ coro);
1601 ++coro_nready;
1602 1834
1603 if (sv_hook) 1835 if (!coro_nready++)
1604 { 1836 if (coroapi.readyhook)
1605 dSP; 1837 coroapi.readyhook ();
1606
1607 ENTER;
1608 SAVETMPS;
1609
1610 PUSHMARK (SP);
1611 PUTBACK;
1612 call_sv (sv_hook, G_VOID | G_DISCARD);
1613
1614 FREETMPS;
1615 LEAVE;
1616 }
1617
1618 if (xs_hook)
1619 xs_hook ();
1620 1838
1621 return 1; 1839 return 1;
1622} 1840}
1623 1841
1624static int 1842static int
… …
1647static void 1865static void
1648prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1866prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1649{ 1867{
1650 for (;;) 1868 for (;;)
1651 { 1869 {
1652 SV *next_sv = coro_deq (aTHX); 1870 struct coro *next = coro_deq (aTHX);
1653 1871
1654 if (expect_true (next_sv)) 1872 if (expect_true (next))
1655 { 1873 {
1656 struct coro *next = SvSTATE_hv (next_sv);
1657
1658 /* cannot transfer to destroyed coros, skip and look for next */ 1874 /* cannot transfer to destroyed coros, skip and look for next */
1659 if (expect_false (next->flags & CF_DESTROYED)) 1875 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1660 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1876 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1661 else 1877 else
1662 { 1878 {
1663 next->flags &= ~CF_READY; 1879 next->flags &= ~CF_READY;
1664 --coro_nready; 1880 --coro_nready;
1665 1881
… …
1668 } 1884 }
1669 } 1885 }
1670 else 1886 else
1671 { 1887 {
1672 /* nothing to schedule: call the idle handler */ 1888 /* nothing to schedule: call the idle handler */
1889 if (SvROK (sv_idle)
1890 && SvOBJECT (SvRV (sv_idle)))
1891 {
1892 if (SvRV (sv_idle) == SvRV (coro_current))
1893 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1894
1895 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1896 api_ready (aTHX_ SvRV (sv_idle));
1897 --coro_nready;
1898 }
1899 else
1900 {
1901 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1673 dSP; 1902 dSP;
1674 1903
1675 ENTER; 1904 ENTER;
1676 SAVETMPS; 1905 SAVETMPS;
1677 1906
1678 PUSHMARK (SP); 1907 PUSHMARK (SP);
1679 PUTBACK; 1908 PUTBACK;
1680 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1909 call_sv (sv_idle, G_VOID | G_DISCARD);
1681 1910
1682 FREETMPS; 1911 FREETMPS;
1683 LEAVE; 1912 LEAVE;
1913 }
1684 } 1914 }
1685 } 1915 }
1686} 1916}
1687 1917
1688INLINE void 1918INLINE void
… …
1759static void 1989static void
1760api_trace (pTHX_ SV *coro_sv, int flags) 1990api_trace (pTHX_ SV *coro_sv, int flags)
1761{ 1991{
1762 struct coro *coro = SvSTATE (coro_sv); 1992 struct coro *coro = SvSTATE (coro_sv);
1763 1993
1994 if (coro->flags & CF_RUNNING)
1995 croak ("cannot enable tracing on a running coroutine, caught");
1996
1764 if (flags & CC_TRACE) 1997 if (flags & CC_TRACE)
1765 { 1998 {
1766 if (!coro->cctx) 1999 if (!coro->cctx)
1767 coro->cctx = cctx_new_run (); 2000 coro->cctx = cctx_new_run ();
1768 else if (!(coro->cctx->flags & CC_TRACE)) 2001 else if (!(coro->cctx->flags & CC_TRACE))
1769 croak ("cannot enable tracing on coroutine with custom stack,"); 2002 croak ("cannot enable tracing on coroutine with custom stack, caught");
1770 2003
1771 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 2004 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1772 } 2005 }
1773 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 2006 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1774 { 2007 {
… …
1783 2016
1784static void 2017static void
1785coro_call_on_destroy (pTHX_ struct coro *coro) 2018coro_call_on_destroy (pTHX_ struct coro *coro)
1786{ 2019{
1787 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2020 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1788 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1789 2021
1790 if (on_destroyp) 2022 if (on_destroyp)
1791 { 2023 {
1792 AV *on_destroy = (AV *)SvRV (*on_destroyp); 2024 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2025 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2026 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
1793 2027
1794 while (AvFILLp (on_destroy) >= 0) 2028 while (AvFILLp (on_destroy) >= 0)
1795 { 2029 {
1796 dSP; /* don't disturb outer sp */ 2030 dSP; /* don't disturb outer sp */
1797 SV *cb = av_pop (on_destroy); 2031 SV *cb = av_pop (on_destroy);
… …
1799 PUSHMARK (SP); 2033 PUSHMARK (SP);
1800 2034
1801 if (statusp) 2035 if (statusp)
1802 { 2036 {
1803 int i; 2037 int i;
1804 AV *status = (AV *)SvRV (*statusp);
1805 EXTEND (SP, AvFILLp (status) + 1); 2038 EXTEND (SP, AvFILLp (status) + 1);
1806 2039
1807 for (i = 0; i <= AvFILLp (status); ++i) 2040 for (i = 0; i <= AvFILLp (status); ++i)
1808 PUSHs (AvARRAY (status)[i]); 2041 PUSHs (AvARRAY (status)[i]);
1809 } 2042 }
… …
1813 } 2046 }
1814 } 2047 }
1815} 2048}
1816 2049
1817static void 2050static void
1818slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2051coro_set_status (HV *coro_hv, SV **arg, int items)
1819{ 2052{
1820 int i;
1821 HV *hv = (HV *)SvRV (coro_current);
1822 AV *av = newAV (); 2053 AV *av = newAV ();
1823 2054
2055 /* items are actually not so common, so optimise for this case */
2056 if (items)
2057 {
2058 int i;
2059
1824 av_extend (av, items - 1); 2060 av_extend (av, items - 1);
2061
1825 for (i = 0; i < items; ++i) 2062 for (i = 0; i < items; ++i)
1826 av_push (av, SvREFCNT_inc_NN (arg [i])); 2063 av_push (av, SvREFCNT_inc_NN (arg [i]));
2064 }
1827 2065
1828 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2066 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2067}
1829 2068
2069static void
2070slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2071{
1830 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2072 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1831 api_ready (aTHX_ sv_manager); 2073 api_ready (aTHX_ sv_manager);
1832 2074
1833 frame->prepare = prepare_schedule; 2075 frame->prepare = prepare_schedule;
1834 frame->check = slf_check_repeat; 2076 frame->check = slf_check_repeat;
2077
2078 /* as a minor optimisation, we could unwind all stacks here */
2079 /* but that puts extra pressure on pp_slf, and is not worth much */
2080 /*coro_unwind_stacks (aTHX);*/
2081}
2082
2083static void
2084slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2085{
2086 HV *coro_hv = (HV *)SvRV (coro_current);
2087
2088 coro_set_status (coro_hv, arg, items);
2089 slf_init_terminate_cancel_common (frame, coro_hv);
2090}
2091
2092static void
2093slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2094{
2095 HV *coro_hv;
2096 struct coro *coro;
2097
2098 if (items <= 0)
2099 croak ("Coro::cancel called without coro object,");
2100
2101 coro = SvSTATE (arg [0]);
2102 coro_hv = coro->hv;
2103
2104 coro_set_status (coro_hv, arg + 1, items - 1);
2105
2106 if (expect_false (coro->flags & CF_NOCANCEL))
2107 {
2108 /* coro currently busy cancelling something, so just notify it */
2109 coro->slf_frame.data = (void *)coro;
2110
2111 frame->prepare = prepare_nop;
2112 frame->check = slf_check_nop;
2113 }
2114 else if (coro_hv == (HV *)SvRV (coro_current))
2115 {
2116 /* cancelling the current coro is allowed, and equals terminate */
2117 slf_init_terminate_cancel_common (frame, coro_hv);
2118 }
2119 else
2120 {
2121 struct coro *self = SvSTATE_current;
2122
2123 /* otherwise we cancel directly, purely for speed reasons
2124 * unfortunately, this requires some magic trickery, as
2125 * somebody else could cancel us, so we have to fight the cancellation.
2126 * this is ugly, and hopefully fully worth the extra speed.
2127 * besides, I can't get the slow-but-safe version working...
2128 */
2129 slf_frame.data = 0;
2130 self->flags |= CF_NOCANCEL;
2131
2132 coro_state_destroy (aTHX_ coro);
2133 coro_call_on_destroy (aTHX_ coro);
2134
2135 self->flags &= ~CF_NOCANCEL;
2136
2137 if (slf_frame.data)
2138 {
2139 /* while we were busy we have been cancelled, so terminate */
2140 slf_init_terminate_cancel_common (frame, self->hv);
2141 }
2142 else
2143 {
2144 frame->prepare = prepare_nop;
2145 frame->check = slf_check_nop;
2146 }
2147 }
1835} 2148}
1836 2149
1837/*****************************************************************************/ 2150/*****************************************************************************/
1838/* async pool handler */ 2151/* async pool handler */
1839 2152
… …
1917 2230
1918static void 2231static void
1919coro_rouse_callback (pTHX_ CV *cv) 2232coro_rouse_callback (pTHX_ CV *cv)
1920{ 2233{
1921 dXSARGS; 2234 dXSARGS;
1922 SV *data = (SV *)GENSUB_ARG; 2235 SV *data = (SV *)S_GENSUB_ARG;
1923 2236
1924 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2237 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1925 { 2238 {
1926 /* first call, set args */ 2239 /* first call, set args */
2240 SV *coro = SvRV (data);
1927 AV *av = newAV (); 2241 AV *av = newAV ();
1928 SV *coro = SvRV (data);
1929 2242
1930 SvRV_set (data, (SV *)av); 2243 SvRV_set (data, (SV *)av);
1931 api_ready (aTHX_ coro);
1932 SvREFCNT_dec (coro);
1933 2244
1934 /* better take a full copy of the arguments */ 2245 /* better take a full copy of the arguments */
1935 while (items--) 2246 while (items--)
1936 av_store (av, items, newSVsv (ST (items))); 2247 av_store (av, items, newSVsv (ST (items)));
2248
2249 api_ready (aTHX_ coro);
2250 SvREFCNT_dec (coro);
1937 } 2251 }
1938 2252
1939 XSRETURN_EMPTY; 2253 XSRETURN_EMPTY;
1940} 2254}
1941 2255
… …
1958 2272
1959 EXTEND (SP, AvFILLp (av) + 1); 2273 EXTEND (SP, AvFILLp (av) + 1);
1960 for (i = 0; i <= AvFILLp (av); ++i) 2274 for (i = 0; i <= AvFILLp (av); ++i)
1961 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2275 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1962 2276
1963 /* we have stolen the elements, so ste length to zero and free */ 2277 /* we have stolen the elements, so set length to zero and free */
1964 AvFILLp (av) = -1; 2278 AvFILLp (av) = -1;
1965 av_undef (av); 2279 av_undef (av);
1966 2280
1967 PUTBACK; 2281 PUTBACK;
1968 } 2282 }
… …
1992 || SvTYPE (SvRV (cb)) != SVt_PVCV 2306 || SvTYPE (SvRV (cb)) != SVt_PVCV
1993 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2307 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1994 croak ("Coro::rouse_wait called with illegal callback argument,"); 2308 croak ("Coro::rouse_wait called with illegal callback argument,");
1995 2309
1996 { 2310 {
1997 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2311 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1998 SV *data = (SV *)GENSUB_ARG; 2312 SV *data = (SV *)S_GENSUB_ARG;
1999 2313
2000 frame->data = (void *)data; 2314 frame->data = (void *)data;
2001 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2315 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2002 frame->check = slf_check_rouse_wait; 2316 frame->check = slf_check_rouse_wait;
2003 } 2317 }
… …
2007coro_new_rouse_cb (pTHX) 2321coro_new_rouse_cb (pTHX)
2008{ 2322{
2009 HV *hv = (HV *)SvRV (coro_current); 2323 HV *hv = (HV *)SvRV (coro_current);
2010 struct coro *coro = SvSTATE_hv (hv); 2324 struct coro *coro = SvSTATE_hv (hv);
2011 SV *data = newRV_inc ((SV *)hv); 2325 SV *data = newRV_inc ((SV *)hv);
2012 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2326 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2013 2327
2014 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2328 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2015 SvREFCNT_dec (data); /* magicext increases the refcount */ 2329 SvREFCNT_dec (data); /* magicext increases the refcount */
2016 2330
2017 SvREFCNT_dec (coro->rouse_cb); 2331 SvREFCNT_dec (coro->rouse_cb);
… …
2242 if (PL_op->op_flags & OPf_STACKED) 2556 if (PL_op->op_flags & OPf_STACKED)
2243 { 2557 {
2244 if (items > slf_arga) 2558 if (items > slf_arga)
2245 { 2559 {
2246 slf_arga = items; 2560 slf_arga = items;
2247 free (slf_argv); 2561 Safefree (slf_argv);
2248 slf_argv = malloc (slf_arga * sizeof (SV *)); 2562 New (0, slf_argv, slf_arga, SV *);
2249 } 2563 }
2250 2564
2251 slf_argc = items; 2565 slf_argc = items;
2252 2566
2253 for (i = 0; i < items; ++i) 2567 for (i = 0; i < items; ++i)
… …
2258 2572
2259 PL_op->op_ppaddr = pp_slf; 2573 PL_op->op_ppaddr = pp_slf;
2260 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2574 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2261 2575
2262 PL_op = (OP *)&slf_restore; 2576 PL_op = (OP *)&slf_restore;
2577}
2578
2579/*****************************************************************************/
2580/* dynamic wind */
2581
2582static void
2583on_enterleave_call (pTHX_ SV *cb)
2584{
2585 dSP;
2586
2587 PUSHSTACK;
2588
2589 PUSHMARK (SP);
2590 PUTBACK;
2591 call_sv (cb, G_VOID | G_DISCARD);
2592 SPAGAIN;
2593
2594 POPSTACK;
2595}
2596
2597static SV *
2598coro_avp_pop_and_free (pTHX_ AV **avp)
2599{
2600 AV *av = *avp;
2601 SV *res = av_pop (av);
2602
2603 if (AvFILLp (av) < 0)
2604 {
2605 *avp = 0;
2606 SvREFCNT_dec (av);
2607 }
2608
2609 return res;
2610}
2611
2612static void
2613coro_pop_on_enter (pTHX_ void *coro)
2614{
2615 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2616 SvREFCNT_dec (cb);
2617}
2618
2619static void
2620coro_pop_on_leave (pTHX_ void *coro)
2621{
2622 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2623 on_enterleave_call (aTHX_ sv_2mortal (cb));
2263} 2624}
2264 2625
2265/*****************************************************************************/ 2626/*****************************************************************************/
2266/* PerlIO::cede */ 2627/* PerlIO::cede */
2267 2628
… …
2341/* Coro::Semaphore & Coro::Signal */ 2702/* Coro::Semaphore & Coro::Signal */
2342 2703
2343static SV * 2704static SV *
2344coro_waitarray_new (pTHX_ int count) 2705coro_waitarray_new (pTHX_ int count)
2345{ 2706{
2346 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2707 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2347 AV *av = newAV (); 2708 AV *av = newAV ();
2348 SV **ary; 2709 SV **ary;
2349 2710
2350 /* unfortunately, building manually saves memory */ 2711 /* unfortunately, building manually saves memory */
2351 Newx (ary, 2, SV *); 2712 Newx (ary, 2, SV *);
2352 AvALLOC (av) = ary; 2713 AvALLOC (av) = ary;
2714#if PERL_VERSION_ATLEAST (5,10,0)
2353 /*AvARRAY (av) = ary;*/ 2715 AvARRAY (av) = ary;
2716#else
2354 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2717 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2718 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2719 SvPVX ((SV *)av) = (char *)ary;
2720#endif
2355 AvMAX (av) = 1; 2721 AvMAX (av) = 1;
2356 AvFILLp (av) = 0; 2722 AvFILLp (av) = 0;
2357 ary [0] = newSViv (count); 2723 ary [0] = newSViv (count);
2358 2724
2359 return newRV_noinc ((SV *)av); 2725 return newRV_noinc ((SV *)av);
… …
2488{ 2854{
2489 if (items >= 2) 2855 if (items >= 2)
2490 { 2856 {
2491 /* callback form */ 2857 /* callback form */
2492 AV *av = (AV *)SvRV (arg [0]); 2858 AV *av = (AV *)SvRV (arg [0]);
2493 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2859 SV *cb_cv = s_get_cv_croak (arg [1]);
2494 2860
2495 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2861 av_push (av, SvREFCNT_inc_NN (cb_cv));
2496 2862
2497 if (SvIVX (AvARRAY (av)[0]) > 0) 2863 if (SvIVX (AvARRAY (av)[0]) > 0)
2498 coro_semaphore_adjust (aTHX_ av, 0); 2864 coro_semaphore_adjust (aTHX_ av, 0);
2499 2865
2500 frame->prepare = prepare_nop; 2866 frame->prepare = prepare_nop;
… …
2524 AvARRAY (av)[0] = AvARRAY (av)[1]; 2890 AvARRAY (av)[0] = AvARRAY (av)[1];
2525 AvARRAY (av)[1] = cb; 2891 AvARRAY (av)[1] = cb;
2526 2892
2527 cb = av_shift (av); 2893 cb = av_shift (av);
2528 2894
2895 if (SvTYPE (cb) == SVt_PVCV)
2896 {
2897 dSP;
2898 PUSHMARK (SP);
2899 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2900 PUTBACK;
2901 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2902 }
2903 else
2904 {
2529 api_ready (aTHX_ cb); 2905 api_ready (aTHX_ cb);
2530 sv_setiv (cb, 0); /* signal waiter */ 2906 sv_setiv (cb, 0); /* signal waiter */
2907 }
2908
2531 SvREFCNT_dec (cb); 2909 SvREFCNT_dec (cb);
2532 2910
2533 --count; 2911 --count;
2534 } 2912 }
2535} 2913}
… …
2544static void 2922static void
2545slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2923slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2546{ 2924{
2547 AV *av = (AV *)SvRV (arg [0]); 2925 AV *av = (AV *)SvRV (arg [0]);
2548 2926
2927 if (items >= 2)
2928 {
2929 SV *cb_cv = s_get_cv_croak (arg [1]);
2930 av_push (av, SvREFCNT_inc_NN (cb_cv));
2931
2549 if (SvIVX (AvARRAY (av)[0])) 2932 if (SvIVX (AvARRAY (av)[0]))
2933 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2934
2935 frame->prepare = prepare_nop;
2936 frame->check = slf_check_nop;
2937 }
2938 else if (SvIVX (AvARRAY (av)[0]))
2550 { 2939 {
2551 SvIVX (AvARRAY (av)[0]) = 0; 2940 SvIVX (AvARRAY (av)[0]) = 0;
2552 frame->prepare = prepare_nop; 2941 frame->prepare = prepare_nop;
2553 frame->check = slf_check_nop; 2942 frame->check = slf_check_nop;
2554 } 2943 }
2555 else 2944 else
2556 { 2945 {
2557 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2946 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2558 2947
2559 av_push (av, waiter); 2948 av_push (av, waiter);
2560 2949
2561 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2950 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2562 frame->prepare = prepare_schedule; 2951 frame->prepare = prepare_schedule;
… …
2580 2969
2581static void 2970static void
2582coro_aio_callback (pTHX_ CV *cv) 2971coro_aio_callback (pTHX_ CV *cv)
2583{ 2972{
2584 dXSARGS; 2973 dXSARGS;
2585 AV *state = (AV *)GENSUB_ARG; 2974 AV *state = (AV *)S_GENSUB_ARG;
2586 SV *coro = av_pop (state); 2975 SV *coro = av_pop (state);
2587 SV *data_sv = newSV (sizeof (struct io_state)); 2976 SV *data_sv = newSV (sizeof (struct io_state));
2588 2977
2589 av_extend (state, items - 1); 2978 av_extend (state, items - 1);
2590 2979
… …
2704 3093
2705 for (i = 0; i < items; ++i) 3094 for (i = 0; i < items; ++i)
2706 PUSHs (arg [i]); 3095 PUSHs (arg [i]);
2707 3096
2708 /* now push the callback closure */ 3097 /* now push the callback closure */
2709 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3098 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2710 3099
2711 /* now call the AIO function - we assume our request is uncancelable */ 3100 /* now call the AIO function - we assume our request is uncancelable */
2712 PUTBACK; 3101 PUTBACK;
2713 call_sv ((SV *)req, G_VOID | G_DISCARD); 3102 call_sv ((SV *)req, G_VOID | G_DISCARD);
2714 } 3103 }
2715 3104
2716 /* now that the requets is going, we loop toll we have a result */ 3105 /* now that the request is going, we loop till we have a result */
2717 frame->data = (void *)state; 3106 frame->data = (void *)state;
2718 frame->prepare = prepare_schedule; 3107 frame->prepare = prepare_schedule;
2719 frame->check = slf_check_aio_req; 3108 frame->check = slf_check_aio_req;
2720} 3109}
2721 3110
… …
2732/*****************************************************************************/ 3121/*****************************************************************************/
2733 3122
2734#if CORO_CLONE 3123#if CORO_CLONE
2735# include "clone.c" 3124# include "clone.c"
2736#endif 3125#endif
3126
3127/*****************************************************************************/
3128
3129static SV *
3130coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3131{
3132 SV *coro_sv;
3133 struct coro *coro;
3134 MAGIC *mg;
3135 HV *hv;
3136 SV *cb;
3137 int i;
3138
3139 if (argc > 0)
3140 {
3141 cb = s_get_cv_croak (argv [0]);
3142
3143 if (!is_coro)
3144 {
3145 if (CvISXSUB (cb))
3146 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3147
3148 if (!CvROOT (cb))
3149 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3150 }
3151 }
3152
3153 Newz (0, coro, 1, struct coro);
3154 coro->args = newAV ();
3155 coro->flags = CF_NEW;
3156
3157 if (coro_first) coro_first->prev = coro;
3158 coro->next = coro_first;
3159 coro_first = coro;
3160
3161 coro->hv = hv = newHV ();
3162 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3163 mg->mg_flags |= MGf_DUP;
3164 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3165
3166 if (argc > 0)
3167 {
3168 av_extend (coro->args, argc + is_coro - 1);
3169
3170 if (is_coro)
3171 {
3172 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3173 cb = (SV *)cv_coro_run;
3174 }
3175
3176 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3177
3178 for (i = 1; i < argc; i++)
3179 av_push (coro->args, newSVsv (argv [i]));
3180 }
3181
3182 return coro_sv;
3183}
2737 3184
2738MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3185MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2739 3186
2740PROTOTYPES: DISABLE 3187PROTOTYPES: DISABLE
2741 3188
… …
2746 coro_thx = PERL_GET_CONTEXT; 3193 coro_thx = PERL_GET_CONTEXT;
2747# endif 3194# endif
2748#endif 3195#endif
2749 BOOT_PAGESIZE; 3196 BOOT_PAGESIZE;
2750 3197
3198 cctx_current = cctx_new_empty ();
3199
2751 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3200 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2752 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3201 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2753 3202
2754 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3203 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2755 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3204 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2792 coroapi.prepare_nop = prepare_nop; 3241 coroapi.prepare_nop = prepare_nop;
2793 coroapi.prepare_schedule = prepare_schedule; 3242 coroapi.prepare_schedule = prepare_schedule;
2794 coroapi.prepare_cede = prepare_cede; 3243 coroapi.prepare_cede = prepare_cede;
2795 coroapi.prepare_cede_notself = prepare_cede_notself; 3244 coroapi.prepare_cede_notself = prepare_cede_notself;
2796 3245
2797 { 3246 time_init (aTHX);
2798 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2799 3247
2800 if (!svp) croak ("Time::HiRes is required");
2801 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2802
2803 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2804 }
2805
2806 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3248 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2807} 3249}
2808 3250
2809SV * 3251SV *
2810new (char *klass, ...) 3252new (SV *klass, ...)
2811 ALIAS: 3253 ALIAS:
2812 Coro::new = 1 3254 Coro::new = 1
2813 CODE: 3255 CODE:
2814{ 3256 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2815 struct coro *coro; 3257 OUTPUT:
2816 MAGIC *mg;
2817 HV *hv;
2818 CV *cb;
2819 int i;
2820
2821 if (items > 1)
2822 {
2823 cb = coro_sv_2cv (aTHX_ ST (1));
2824
2825 if (!ix)
2826 {
2827 if (CvISXSUB (cb))
2828 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2829
2830 if (!CvROOT (cb))
2831 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2832 }
2833 }
2834
2835 Newz (0, coro, 1, struct coro);
2836 coro->args = newAV ();
2837 coro->flags = CF_NEW;
2838
2839 if (coro_first) coro_first->prev = coro;
2840 coro->next = coro_first;
2841 coro_first = coro;
2842
2843 coro->hv = hv = newHV ();
2844 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2845 mg->mg_flags |= MGf_DUP;
2846 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2847
2848 if (items > 1)
2849 {
2850 av_extend (coro->args, items - 1 + ix - 1);
2851
2852 if (ix)
2853 {
2854 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2855 cb = cv_coro_run;
2856 }
2857
2858 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2859
2860 for (i = 2; i < items; i++)
2861 av_push (coro->args, newSVsv (ST (i)));
2862 }
2863}
2864 OUTPUT:
2865 RETVAL 3258 RETVAL
2866 3259
2867void 3260void
2868transfer (...) 3261transfer (...)
2869 PROTOTYPE: $$ 3262 PROTOTYPE: $$
2870 CODE: 3263 CODE:
2871 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3264 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2872 3265
2873bool
2874_destroy (SV *coro_sv)
2875 CODE:
2876 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2877 OUTPUT:
2878 RETVAL
2879
2880void 3266void
2881_exit (int code) 3267_exit (int code)
2882 PROTOTYPE: $ 3268 PROTOTYPE: $
2883 CODE: 3269 CODE:
2884 _exit (code); 3270 _exit (code);
2885 3271
2886#if CORO_CLONE
2887
2888SV * 3272SV *
2889clone (Coro::State coro) 3273clone (Coro::State coro)
2890 CODE: 3274 CODE:
2891{ 3275{
3276#if CORO_CLONE
2892 struct coro *ncoro = coro_clone (coro); 3277 struct coro *ncoro = coro_clone (aTHX_ coro);
2893 MAGIC *mg; 3278 MAGIC *mg;
2894 /* TODO: too much duplication */ 3279 /* TODO: too much duplication */
2895 ncoro->hv = newHV (); 3280 ncoro->hv = newHV ();
2896 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); 3281 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
2897 mg->mg_flags |= MGf_DUP; 3282 mg->mg_flags |= MGf_DUP;
2898 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); 3283 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3284#else
3285 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3286#endif
2899} 3287}
2900 OUTPUT: 3288 OUTPUT:
2901 RETVAL 3289 RETVAL
2902
2903#endif
2904 3290
2905int 3291int
2906cctx_stacksize (int new_stacksize = 0) 3292cctx_stacksize (int new_stacksize = 0)
2907 PROTOTYPE: ;$ 3293 PROTOTYPE: ;$
2908 CODE: 3294 CODE:
… …
2958 eval = 1 3344 eval = 1
2959 CODE: 3345 CODE:
2960{ 3346{
2961 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3347 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2962 { 3348 {
2963 struct coro temp; 3349 struct coro *current = SvSTATE_current;
3350 struct CoroSLF slf_save;
2964 3351
2965 if (!(coro->flags & CF_RUNNING)) 3352 if (current != coro)
2966 { 3353 {
2967 PUTBACK; 3354 PUTBACK;
2968 save_perl (aTHX_ &temp); 3355 save_perl (aTHX_ current);
2969 load_perl (aTHX_ coro); 3356 load_perl (aTHX_ coro);
3357 /* the coro is most likely in an active SLF call.
3358 * while not strictly required (the code we execute is
3359 * not allowed to call any SLF functions), it's cleaner
3360 * to reinitialise the slf_frame and restore it later.
3361 * This might one day allow us to actually do SLF calls
3362 * from code executed here.
3363 */
3364 slf_save = slf_frame;
3365 slf_frame.prepare = 0;
3366 SPAGAIN;
2970 } 3367 }
2971 3368
2972 {
2973 dSP;
2974 ENTER;
2975 SAVETMPS;
2976 PUTBACK;
2977 PUSHSTACK; 3369 PUSHSTACK;
3370
2978 PUSHMARK (SP); 3371 PUSHMARK (SP);
3372 PUTBACK;
2979 3373
2980 if (ix) 3374 if (ix)
2981 eval_sv (coderef, 0); 3375 eval_sv (coderef, 0);
2982 else 3376 else
2983 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3377 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2984 3378
2985 POPSTACK; 3379 POPSTACK;
2986 SPAGAIN; 3380 SPAGAIN;
2987 FREETMPS;
2988 LEAVE;
2989 PUTBACK;
2990 }
2991 3381
2992 if (!(coro->flags & CF_RUNNING)) 3382 if (current != coro)
2993 { 3383 {
3384 PUTBACK;
3385 slf_frame = slf_save;
2994 save_perl (aTHX_ coro); 3386 save_perl (aTHX_ coro);
2995 load_perl (aTHX_ &temp); 3387 load_perl (aTHX_ current);
2996 SPAGAIN; 3388 SPAGAIN;
2997 } 3389 }
2998 } 3390 }
2999} 3391}
3000 3392
… …
3004 ALIAS: 3396 ALIAS:
3005 is_ready = CF_READY 3397 is_ready = CF_READY
3006 is_running = CF_RUNNING 3398 is_running = CF_RUNNING
3007 is_new = CF_NEW 3399 is_new = CF_NEW
3008 is_destroyed = CF_DESTROYED 3400 is_destroyed = CF_DESTROYED
3401 is_suspended = CF_SUSPENDED
3009 CODE: 3402 CODE:
3010 RETVAL = boolSV (coro->flags & ix); 3403 RETVAL = boolSV (coro->flags & ix);
3011 OUTPUT: 3404 OUTPUT:
3012 RETVAL 3405 RETVAL
3013 3406
3014void 3407void
3015throw (Coro::State self, SV *throw = &PL_sv_undef) 3408throw (Coro::State self, SV *exception = &PL_sv_undef)
3016 PROTOTYPE: $;$ 3409 PROTOTYPE: $;$
3017 CODE: 3410 CODE:
3018{ 3411{
3019 struct coro *current = SvSTATE_current; 3412 struct coro *current = SvSTATE_current;
3020 SV **throwp = self == current ? &CORO_THROW : &self->except; 3413 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3021 SvREFCNT_dec (*throwp); 3414 SvREFCNT_dec (*exceptionp);
3022 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3415 SvGETMAGIC (exception);
3416 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3023} 3417}
3024 3418
3025void 3419void
3026api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3420api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3027 PROTOTYPE: $;$ 3421 PROTOTYPE: $;$
… …
3029 3423
3030SV * 3424SV *
3031has_cctx (Coro::State coro) 3425has_cctx (Coro::State coro)
3032 PROTOTYPE: $ 3426 PROTOTYPE: $
3033 CODE: 3427 CODE:
3034 RETVAL = boolSV (!!coro->cctx); 3428 /* maybe manage the running flag differently */
3429 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
3035 OUTPUT: 3430 OUTPUT:
3036 RETVAL 3431 RETVAL
3037 3432
3038int 3433int
3039is_traced (Coro::State coro) 3434is_traced (Coro::State coro)
… …
3059 3454
3060void 3455void
3061force_cctx () 3456force_cctx ()
3062 PROTOTYPE: 3457 PROTOTYPE:
3063 CODE: 3458 CODE:
3064 SvSTATE_current->cctx->idle_sp = 0; 3459 cctx_current->idle_sp = 0;
3065 3460
3066void 3461void
3067swap_defsv (Coro::State self) 3462swap_defsv (Coro::State self)
3068 PROTOTYPE: $ 3463 PROTOTYPE: $
3069 ALIAS: 3464 ALIAS:
… …
3077 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3472 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3078 3473
3079 SV *tmp = *src; *src = *dst; *dst = tmp; 3474 SV *tmp = *src; *src = *dst; *dst = tmp;
3080 } 3475 }
3081 3476
3477void
3478cancel (Coro::State self)
3479 CODE:
3480 coro_state_destroy (aTHX_ self);
3481
3482SV *
3483enable_times (int enabled = enable_times)
3484 CODE:
3485{
3486 RETVAL = boolSV (enable_times);
3487
3488 if (enabled != enable_times)
3489 {
3490 enable_times = enabled;
3491
3492 coro_times_update ();
3493 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3494 }
3495}
3496 OUTPUT:
3497 RETVAL
3498
3499void
3500times (Coro::State self)
3501 PPCODE:
3502{
3503 struct coro *current = SvSTATE (coro_current);
3504
3505 if (expect_false (current == self))
3506 {
3507 coro_times_update ();
3508 coro_times_add (SvSTATE (coro_current));
3509 }
3510
3511 EXTEND (SP, 2);
3512 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3513 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3514
3515 if (expect_false (current == self))
3516 coro_times_sub (SvSTATE (coro_current));
3517}
3518
3519void
3520swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3521 CODE:
3522{
3523 struct coro *current = SvSTATE_current;
3524
3525 if (current == coro)
3526 SWAP_SVS (current);
3527
3528 if (!coro->swap_sv)
3529 coro->swap_sv = newAV ();
3530
3531 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3532 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3533
3534 if (current == coro)
3535 SWAP_SVS (current);
3536}
3537
3082 3538
3083MODULE = Coro::State PACKAGE = Coro 3539MODULE = Coro::State PACKAGE = Coro
3084 3540
3085BOOT: 3541BOOT:
3086{ 3542{
3087 int i;
3088
3089 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3543 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3090 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3544 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3091 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3545 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3092 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3546 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3093 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3547 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3094 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3548 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3095 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3549 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3096 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3550 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3551 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3097 3552
3098 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3553 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3099 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3554 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3100 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3555 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3101 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3556 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3102 3557
3103 coro_stash = gv_stashpv ("Coro", TRUE); 3558 coro_stash = gv_stashpv ("Coro", TRUE);
3104 3559
3105 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3560 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3106 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3561 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3107 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3562 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3108 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3563 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3109 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3564 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3110 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3565 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3111
3112 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3113 coro_ready[i] = newAV ();
3114 3566
3115 { 3567 {
3116 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3568 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3117 3569
3118 coroapi.schedule = api_schedule; 3570 coroapi.schedule = api_schedule;
… …
3128 sv_setiv (sv, (IV)&coroapi); 3580 sv_setiv (sv, (IV)&coroapi);
3129 SvREADONLY_on (sv); 3581 SvREADONLY_on (sv);
3130 } 3582 }
3131} 3583}
3132 3584
3585SV *
3586async (...)
3587 PROTOTYPE: &@
3588 CODE:
3589 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3590 api_ready (aTHX_ RETVAL);
3591 OUTPUT:
3592 RETVAL
3593
3594void
3595_destroy (Coro::State coro)
3596 CODE:
3597 /* used by the manager thread */
3598 coro_state_destroy (aTHX_ coro);
3599 coro_call_on_destroy (aTHX_ coro);
3600
3133void 3601void
3134terminate (...) 3602terminate (...)
3135 CODE: 3603 CODE:
3136 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3604 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3137 3605
3138void 3606void
3607cancel (...)
3608 CODE:
3609 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3610
3611void
3139schedule (...) 3612schedule (...)
3140 CODE: 3613 CODE:
3141 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3614 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3142 3615
3143void 3616void
… …
3157 3630
3158void 3631void
3159cede_notself (...) 3632cede_notself (...)
3160 CODE: 3633 CODE:
3161 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3634 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3162
3163void
3164_cancel (Coro::State self)
3165 CODE:
3166 coro_state_destroy (aTHX_ self);
3167 coro_call_on_destroy (aTHX_ self);
3168 3635
3169void 3636void
3170_set_current (SV *current) 3637_set_current (SV *current)
3171 PROTOTYPE: $ 3638 PROTOTYPE: $
3172 CODE: 3639 CODE:
… …
3176void 3643void
3177_set_readyhook (SV *hook) 3644_set_readyhook (SV *hook)
3178 PROTOTYPE: $ 3645 PROTOTYPE: $
3179 CODE: 3646 CODE:
3180 SvREFCNT_dec (coro_readyhook); 3647 SvREFCNT_dec (coro_readyhook);
3648 SvGETMAGIC (hook);
3649 if (SvOK (hook))
3650 {
3181 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3651 coro_readyhook = newSVsv (hook);
3652 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3653 }
3654 else
3655 {
3656 coro_readyhook = 0;
3657 CORO_READYHOOK = 0;
3658 }
3182 3659
3183int 3660int
3184prio (Coro::State coro, int newprio = 0) 3661prio (Coro::State coro, int newprio = 0)
3185 PROTOTYPE: $;$ 3662 PROTOTYPE: $;$
3186 ALIAS: 3663 ALIAS:
… …
3192 if (items > 1) 3669 if (items > 1)
3193 { 3670 {
3194 if (ix) 3671 if (ix)
3195 newprio = coro->prio - newprio; 3672 newprio = coro->prio - newprio;
3196 3673
3197 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3674 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3198 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3675 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3199 3676
3200 coro->prio = newprio; 3677 coro->prio = newprio;
3201 } 3678 }
3202} 3679}
3203 OUTPUT: 3680 OUTPUT:
… …
3218 RETVAL = coro_nready; 3695 RETVAL = coro_nready;
3219 OUTPUT: 3696 OUTPUT:
3220 RETVAL 3697 RETVAL
3221 3698
3222void 3699void
3700suspend (Coro::State self)
3701 PROTOTYPE: $
3702 CODE:
3703 self->flags |= CF_SUSPENDED;
3704
3705void
3706resume (Coro::State self)
3707 PROTOTYPE: $
3708 CODE:
3709 self->flags &= ~CF_SUSPENDED;
3710
3711void
3223_pool_handler (...) 3712_pool_handler (...)
3224 CODE: 3713 CODE:
3225 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3714 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3226 3715
3227void 3716void
… …
3238 for (i = 1; i < items; ++i) 3727 for (i = 1; i < items; ++i)
3239 av_push (av, SvREFCNT_inc_NN (ST (i))); 3728 av_push (av, SvREFCNT_inc_NN (ST (i)));
3240 3729
3241 if ((SV *)hv == &PL_sv_undef) 3730 if ((SV *)hv == &PL_sv_undef)
3242 { 3731 {
3243 PUSHMARK (SP); 3732 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3244 EXTEND (SP, 2);
3245 PUSHs (sv_Coro);
3246 PUSHs ((SV *)cv_pool_handler);
3247 PUTBACK;
3248 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3249 SPAGAIN;
3250
3251 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3733 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3734 SvREFCNT_dec (sv);
3252 } 3735 }
3253 3736
3254 { 3737 {
3255 struct coro *coro = SvSTATE_hv (hv); 3738 struct coro *coro = SvSTATE_hv (hv);
3256 3739
… …
3280rouse_wait (...) 3763rouse_wait (...)
3281 PROTOTYPE: ;$ 3764 PROTOTYPE: ;$
3282 PPCODE: 3765 PPCODE:
3283 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3766 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3284 3767
3768void
3769on_enter (SV *block)
3770 ALIAS:
3771 on_leave = 1
3772 PROTOTYPE: &
3773 CODE:
3774{
3775 struct coro *coro = SvSTATE_current;
3776 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3777
3778 block = s_get_cv_croak (block);
3779
3780 if (!*avp)
3781 *avp = newAV ();
3782
3783 av_push (*avp, SvREFCNT_inc (block));
3784
3785 if (!ix)
3786 on_enterleave_call (aTHX_ block);
3787
3788 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3789 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3790 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3791}
3792
3285 3793
3286MODULE = Coro::State PACKAGE = PerlIO::cede 3794MODULE = Coro::State PACKAGE = PerlIO::cede
3287 3795
3288BOOT: 3796BOOT:
3289 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3797 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3292MODULE = Coro::State PACKAGE = Coro::Semaphore 3800MODULE = Coro::State PACKAGE = Coro::Semaphore
3293 3801
3294SV * 3802SV *
3295new (SV *klass, SV *count = 0) 3803new (SV *klass, SV *count = 0)
3296 CODE: 3804 CODE:
3805{
3806 int semcnt = 1;
3807
3808 if (count)
3809 {
3810 SvGETMAGIC (count);
3811
3812 if (SvOK (count))
3813 semcnt = SvIV (count);
3814 }
3815
3297 RETVAL = sv_bless ( 3816 RETVAL = sv_bless (
3298 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3817 coro_waitarray_new (aTHX_ semcnt),
3299 GvSTASH (CvGV (cv)) 3818 GvSTASH (CvGV (cv))
3300 ); 3819 );
3820}
3301 OUTPUT: 3821 OUTPUT:
3302 RETVAL 3822 RETVAL
3303 3823
3304# helper for Coro::Channel 3824# helper for Coro::Channel and others
3305SV * 3825SV *
3306_alloc (int count) 3826_alloc (int count)
3307 CODE: 3827 CODE:
3308 RETVAL = coro_waitarray_new (aTHX_ count); 3828 RETVAL = coro_waitarray_new (aTHX_ count);
3309 OUTPUT: 3829 OUTPUT:
… …
3367 for (i = 1; i <= wcount; ++i) 3887 for (i = 1; i <= wcount; ++i)
3368 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3888 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3369 } 3889 }
3370} 3890}
3371 3891
3892MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3893
3894void
3895_may_delete (SV *sem, int count, int extra_refs)
3896 PPCODE:
3897{
3898 AV *av = (AV *)SvRV (sem);
3899
3900 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3901 && AvFILLp (av) == 0 /* no waiters, just count */
3902 && SvIV (AvARRAY (av)[0]) == count)
3903 XSRETURN_YES;
3904
3905 XSRETURN_NO;
3906}
3907
3372MODULE = Coro::State PACKAGE = Coro::Signal 3908MODULE = Coro::State PACKAGE = Coro::Signal
3373 3909
3374SV * 3910SV *
3375new (SV *klass) 3911new (SV *klass)
3376 CODE: 3912 CODE:
… …
3447 3983
3448void 3984void
3449_register (char *target, char *proto, SV *req) 3985_register (char *target, char *proto, SV *req)
3450 CODE: 3986 CODE:
3451{ 3987{
3452 CV *req_cv = coro_sv_2cv (aTHX_ req); 3988 SV *req_cv = s_get_cv_croak (req);
3453 /* newXSproto doesn't return the CV on 5.8 */ 3989 /* newXSproto doesn't return the CV on 5.8 */
3454 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3990 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3455 sv_setpv ((SV *)slf_cv, proto); 3991 sv_setpv ((SV *)slf_cv, proto);
3456 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3992 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3457} 3993}
3458 3994
3995MODULE = Coro::State PACKAGE = Coro::Select
3996
3997void
3998patch_pp_sselect ()
3999 CODE:
4000 if (!coro_old_pp_sselect)
4001 {
4002 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4003 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4004 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4005 }
4006
4007void
4008unpatch_pp_sselect ()
4009 CODE:
4010 if (coro_old_pp_sselect)
4011 {
4012 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4013 coro_old_pp_sselect = 0;
4014 }
4015

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