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Comparing Coro/Coro/State.xs (file contents):
Revision 1.317 by root, Thu Nov 20 06:28:52 2008 UTC vs.
Revision 1.387 by root, Mon Feb 21 13:38:04 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
21
22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
16 25
17#ifdef WIN32 26#ifdef WIN32
18# undef setjmp 27# undef setjmp
19# undef longjmp 28# undef longjmp
20# undef _exit 29# undef _exit
… …
51#endif 60#endif
52 61
53/* the maximum number of idle cctx that will be pooled */ 62/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 63static int cctx_max_idle = 4;
55 64
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106
107/* 5.8.7 */
108#ifndef SvRV_set
109# define SvRV_set(s,v) SvRV(s) = (v)
110#endif
111
112#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 65#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
113# undef CORO_STACKGUARD 66# undef CORO_STACKGUARD
114#endif 67#endif
115 68
116#ifndef CORO_STACKGUARD 69#ifndef CORO_STACKGUARD
… …
130#else 83#else
131# define dSTACKLEVEL volatile void *stacklevel 84# define dSTACKLEVEL volatile void *stacklevel
132# define STACKLEVEL ((void *)&stacklevel) 85# define STACKLEVEL ((void *)&stacklevel)
133#endif 86#endif
134 87
135#define IN_DESTRUCT (PL_main_cv == Nullcv) 88#define IN_DESTRUCT PL_dirty
136 89
137#if __GNUC__ >= 3 90#if __GNUC__ >= 3
138# define attribute(x) __attribute__(x) 91# define attribute(x) __attribute__(x)
139# define expect(expr,value) __builtin_expect ((expr),(value)) 92# define expect(expr,value) __builtin_expect ((expr), (value))
140# define INLINE static inline 93# define INLINE static inline
141#else 94#else
142# define attribute(x) 95# define attribute(x)
143# define expect(expr,value) (expr) 96# define expect(expr,value) (expr)
144# define INLINE static 97# define INLINE static
… …
156# if CORO_PTHREAD 109# if CORO_PTHREAD
157static void *coro_thx; 110static void *coro_thx;
158# endif 111# endif
159#endif 112#endif
160 113
114#ifdef __linux
115# include <time.h> /* for timespec */
116# include <syscall.h> /* for SYS_* */
117# ifdef SYS_clock_gettime
118# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
119# define CORO_CLOCK_MONOTONIC 1
120# define CORO_CLOCK_THREAD_CPUTIME_ID 3
121# endif
122#endif
123
161static double (*nvtime)(); /* so why doesn't it take void? */ 124static double (*nvtime)(); /* so why doesn't it take void? */
125static void (*u2time)(pTHX_ UV ret[2]);
162 126
163/* we hijack an hopefully unused CV flag for our purposes */ 127/* we hijack an hopefully unused CV flag for our purposes */
164#define CVf_SLF 0x4000 128#define CVf_SLF 0x4000
165static OP *pp_slf (pTHX); 129static OP *pp_slf (pTHX);
166 130
… …
170static AV *main_mainstack; /* used to differentiate between $main and others */ 134static AV *main_mainstack; /* used to differentiate between $main and others */
171static JMPENV *main_top_env; 135static JMPENV *main_top_env;
172static HV *coro_state_stash, *coro_stash; 136static HV *coro_state_stash, *coro_stash;
173static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 137static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
174 138
139static AV *av_destroy; /* destruction queue */
140static SV *sv_manager; /* the manager coro */
141static SV *sv_idle; /* $Coro::idle */
142
175static GV *irsgv; /* $/ */ 143static GV *irsgv; /* $/ */
176static GV *stdoutgv; /* *STDOUT */ 144static GV *stdoutgv; /* *STDOUT */
177static SV *rv_diehook; 145static SV *rv_diehook;
178static SV *rv_warnhook; 146static SV *rv_warnhook;
179static HV *hv_sig; /* %SIG */ 147static HV *hv_sig; /* %SIG */
180 148
181/* async_pool helper stuff */ 149/* async_pool helper stuff */
182static SV *sv_pool_rss; 150static SV *sv_pool_rss;
183static SV *sv_pool_size; 151static SV *sv_pool_size;
184static SV *sv_async_pool_idle; 152static SV *sv_async_pool_idle; /* description string */
185static AV *av_async_pool; 153static AV *av_async_pool; /* idle pool */
186static SV *sv_Coro; 154static SV *sv_Coro; /* class string */
187static CV *cv_pool_handler; 155static CV *cv_pool_handler;
188static CV *cv_coro_state_new;
189 156
190/* Coro::AnyEvent */ 157/* Coro::AnyEvent */
191static SV *sv_activity; 158static SV *sv_activity;
159
160/* enable processtime/realtime profiling */
161static char enable_times;
162typedef U32 coro_ts[2];
163static coro_ts time_real, time_cpu;
164static char times_valid;
192 165
193static struct coro_cctx *cctx_first; 166static struct coro_cctx *cctx_first;
194static int cctx_count, cctx_idle; 167static int cctx_count, cctx_idle;
195 168
196enum { 169enum {
… …
222 int valgrind_id; 195 int valgrind_id;
223#endif 196#endif
224 unsigned char flags; 197 unsigned char flags;
225} coro_cctx; 198} coro_cctx;
226 199
200coro_cctx *cctx_current; /* the currently running cctx */
201
202/*****************************************************************************/
203
227enum { 204enum {
228 CF_RUNNING = 0x0001, /* coroutine is running */ 205 CF_RUNNING = 0x0001, /* coroutine is running */
229 CF_READY = 0x0002, /* coroutine is ready */ 206 CF_READY = 0x0002, /* coroutine is ready */
230 CF_NEW = 0x0004, /* has never been switched to */ 207 CF_NEW = 0x0004, /* has never been switched to */
231 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 208 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
209 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
232}; 210};
233 211
234/* the structure where most of the perl state is stored, overlaid on the cxstack */ 212/* the structure where most of the perl state is stored, overlaid on the cxstack */
235typedef struct 213typedef struct
236{ 214{
237 SV *defsv; 215 SV *defsv;
238 AV *defav; 216 AV *defav;
239 SV *errsv; 217 SV *errsv;
240 SV *irsgv; 218 SV *irsgv;
219 HV *hinthv;
241#define VAR(name,type) type name; 220#define VAR(name,type) type name;
242# include "state.h" 221# include "state.h"
243#undef VAR 222#undef VAR
244} perl_slots; 223} perl_slots;
245 224
… …
247 226
248/* this is a structure representing a perl-level coroutine */ 227/* this is a structure representing a perl-level coroutine */
249struct coro { 228struct coro {
250 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
251 coro_cctx *cctx; 230 coro_cctx *cctx;
231
232 /* ready queue */
233 struct coro *next_ready;
252 234
253 /* state data */ 235 /* state data */
254 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
255 AV *mainstack; 237 AV *mainstack;
256 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
… …
258 CV *startcv; /* the CV to execute */ 240 CV *startcv; /* the CV to execute */
259 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
260 int refcnt; /* coroutines are refcounted, yes */ 242 int refcnt; /* coroutines are refcounted, yes */
261 int flags; /* CF_ flags */ 243 int flags; /* CF_ flags */
262 HV *hv; /* the perl hash associated with this coro, if any */ 244 HV *hv; /* the perl hash associated with this coro, if any */
263 void (*on_destroy)(pTHX_ struct coro *coro); 245 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
264 246
265 /* statistics */ 247 /* statistics */
266 int usecount; /* number of transfers to this coro */ 248 int usecount; /* number of transfers to this coro */
267 249
268 /* coro process data */ 250 /* coro process data */
… …
273 /* async_pool */ 255 /* async_pool */
274 SV *saved_deffh; 256 SV *saved_deffh;
275 SV *invoke_cb; 257 SV *invoke_cb;
276 AV *invoke_av; 258 AV *invoke_av;
277 259
260 /* on_enter/on_leave */
261 AV *on_enter;
262 AV *on_leave;
263
264 /* swap_sv */
265 AV *swap_sv;
266
267 /* times */
268 coro_ts t_cpu, t_real;
269
278 /* linked list */ 270 /* linked list */
279 struct coro *next, *prev; 271 struct coro *next, *prev;
280}; 272};
281 273
282typedef struct coro *Coro__State; 274typedef struct coro *Coro__State;
… …
287/* the mainr easonw e don't support windows process emulation */ 279/* the mainr easonw e don't support windows process emulation */
288static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
289 281
290/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
291 283
292#define PRIO_MAX 3 284#define CORO_PRIO_MAX 3
293#define PRIO_HIGH 1 285#define CORO_PRIO_HIGH 1
294#define PRIO_NORMAL 0 286#define CORO_PRIO_NORMAL 0
295#define PRIO_LOW -1 287#define CORO_PRIO_LOW -1
296#define PRIO_IDLE -3 288#define CORO_PRIO_IDLE -3
297#define PRIO_MIN -4 289#define CORO_PRIO_MIN -4
298 290
299/* for Coro.pm */ 291/* for Coro.pm */
300static SV *coro_current; 292static SV *coro_current;
301static SV *coro_readyhook; 293static SV *coro_readyhook;
302static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
303static CV *cv_coro_run, *cv_coro_terminate; 295static CV *cv_coro_run, *cv_coro_terminate;
304static struct coro *coro_first; 296static struct coro *coro_first;
305#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
298
299/** Coro::Select ************************************************************/
300
301static OP *(*coro_old_pp_sselect) (pTHX);
302static SV *coro_select_select;
303
304/* horrible hack, but if it works... */
305static OP *
306coro_pp_sselect (pTHX)
307{
308 dSP;
309 PUSHMARK (SP - 4); /* fake argument list */
310 XPUSHs (coro_select_select);
311 PUTBACK;
312
313 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
314 PL_op->op_flags |= OPf_STACKED;
315 PL_op->op_private = 0;
316 return PL_ppaddr [OP_ENTERSUB](aTHX);
317}
318
319/** time stuff **************************************************************/
320
321#ifdef HAS_GETTIMEOFDAY
322
323static void
324coro_u2time (pTHX_ UV ret[2])
325{
326 struct timeval tv;
327 gettimeofday (&tv, 0);
328
329 ret [0] = tv.tv_sec;
330 ret [1] = tv.tv_usec;
331}
332
333static double
334coro_nvtime ()
335{
336 struct timeval tv;
337 gettimeofday (&tv, 0);
338
339 return tv.tv_sec + tv.tv_usec * 1e-6;
340}
341
342static void
343time_init (void)
344{
345 nvtime = coro_nvtime;
346 u2time = coro_u2time;
347}
348
349#else
350
351static void
352time_init (void)
353{
354 SV **svp;
355
356 require_pv ("Time::HiRes");
357
358 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
359
360 if (!svp) croak ("Time::HiRes is required");
361 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
362
363 nvtime = INT2PTR (double (*)(), SvIV (*svp));
364
365 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
366 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
367}
368
369#endif
306 370
307/** lowlevel stuff **********************************************************/ 371/** lowlevel stuff **********************************************************/
308 372
309static SV * 373static SV *
310coro_get_sv (pTHX_ const char *name, int create) 374coro_get_sv (pTHX_ const char *name, int create)
… …
334 get_hv (name, create); 398 get_hv (name, create);
335#endif 399#endif
336 return get_hv (name, create); 400 return get_hv (name, create);
337} 401}
338 402
339/* may croak */ 403INLINE void
340INLINE CV * 404coro_times_update ()
341coro_sv_2cv (pTHX_ SV *sv)
342{ 405{
406#ifdef coro_clock_gettime
407 struct timespec ts;
408
409 ts.tv_sec = ts.tv_nsec = 0;
410 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
411 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
412
413 ts.tv_sec = ts.tv_nsec = 0;
414 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
415 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
416#else
417 dTHX;
418 UV tv[2];
419
420 u2time (aTHX_ tv);
421 time_real [0] = tv [0];
422 time_real [1] = tv [1] * 1000;
423#endif
424}
425
426INLINE void
427coro_times_add (struct coro *c)
428{
429 c->t_real [1] += time_real [1];
430 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
431 c->t_real [0] += time_real [0];
432
433 c->t_cpu [1] += time_cpu [1];
434 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
435 c->t_cpu [0] += time_cpu [0];
436}
437
438INLINE void
439coro_times_sub (struct coro *c)
440{
441 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
442 c->t_real [1] -= time_real [1];
443 c->t_real [0] -= time_real [0];
444
445 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
446 c->t_cpu [1] -= time_cpu [1];
447 c->t_cpu [0] -= time_cpu [0];
448}
449
450/*****************************************************************************/
451/* magic glue */
452
453#define CORO_MAGIC_type_cv 26
454#define CORO_MAGIC_type_state PERL_MAGIC_ext
455
456#define CORO_MAGIC_NN(sv, type) \
457 (expect_true (SvMAGIC (sv)->mg_type == type) \
458 ? SvMAGIC (sv) \
459 : mg_find (sv, type))
460
461#define CORO_MAGIC(sv, type) \
462 (expect_true (SvMAGIC (sv)) \
463 ? CORO_MAGIC_NN (sv, type) \
464 : 0)
465
466#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
467#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
468
469INLINE struct coro *
470SvSTATE_ (pTHX_ SV *coro)
471{
343 HV *st; 472 HV *stash;
344 GV *gvp; 473 MAGIC *mg;
345 return sv_2cv (sv, &st, &gvp, 0); 474
475 if (SvROK (coro))
476 coro = SvRV (coro);
477
478 if (expect_false (SvTYPE (coro) != SVt_PVHV))
479 croak ("Coro::State object required");
480
481 stash = SvSTASH (coro);
482 if (expect_false (stash != coro_stash && stash != coro_state_stash))
483 {
484 /* very slow, but rare, check */
485 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
486 croak ("Coro::State object required");
487 }
488
489 mg = CORO_MAGIC_state (coro);
490 return (struct coro *)mg->mg_ptr;
346} 491}
492
493#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
494
495/* faster than SvSTATE, but expects a coroutine hv */
496#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
497#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
498
499/*****************************************************************************/
500/* padlist management and caching */
347 501
348static AV * 502static AV *
349coro_clone_padlist (pTHX_ CV *cv) 503coro_derive_padlist (pTHX_ CV *cv)
350{ 504{
351 AV *padlist = CvPADLIST (cv); 505 AV *padlist = CvPADLIST (cv);
352 AV *newpadlist, *newpad; 506 AV *newpadlist, *newpad;
353 507
354 newpadlist = newAV (); 508 newpadlist = newAV ();
… …
359 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 513 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
360#endif 514#endif
361 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 515 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
362 --AvFILLp (padlist); 516 --AvFILLp (padlist);
363 517
364 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 518 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
365 av_store (newpadlist, 1, (SV *)newpad); 519 av_store (newpadlist, 1, (SV *)newpad);
366 520
367 return newpadlist; 521 return newpadlist;
368} 522}
369 523
370static void 524static void
371free_padlist (pTHX_ AV *padlist) 525free_padlist (pTHX_ AV *padlist)
372{ 526{
373 /* may be during global destruction */ 527 /* may be during global destruction */
374 if (SvREFCNT (padlist)) 528 if (!IN_DESTRUCT)
375 { 529 {
376 I32 i = AvFILLp (padlist); 530 I32 i = AvFILLp (padlist);
377 while (i >= 0) 531
532 while (i > 0) /* special-case index 0 */
378 { 533 {
379 SV **svp = av_fetch (padlist, i--, FALSE); 534 /* we try to be extra-careful here */
380 if (svp) 535 AV *av = (AV *)AvARRAY (padlist)[i--];
381 { 536 I32 j = AvFILLp (av);
382 SV *sv; 537
383 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 538 while (j >= 0)
539 SvREFCNT_dec (AvARRAY (av)[j--]);
540
541 AvFILLp (av) = -1;
384 SvREFCNT_dec (sv); 542 SvREFCNT_dec (av);
385
386 SvREFCNT_dec (*svp);
387 }
388 } 543 }
389 544
545 SvREFCNT_dec (AvARRAY (padlist)[0]);
546
547 AvFILLp (padlist) = -1;
390 SvREFCNT_dec ((SV*)padlist); 548 SvREFCNT_dec ((SV*)padlist);
391 } 549 }
392} 550}
393 551
394static int 552static int
395coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 553coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
396{ 554{
397 AV *padlist; 555 AV *padlist;
398 AV *av = (AV *)mg->mg_obj; 556 AV *av = (AV *)mg->mg_obj;
557
558 /* perl manages to free our internal AV and _then_ call us */
559 if (IN_DESTRUCT)
560 return 0;
399 561
400 /* casting is fun. */ 562 /* casting is fun. */
401 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 563 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
402 free_padlist (aTHX_ padlist); 564 free_padlist (aTHX_ padlist);
403 565
404 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 566 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
405 567
406 return 0; 568 return 0;
407} 569}
408
409#define CORO_MAGIC_type_cv 26
410#define CORO_MAGIC_type_state PERL_MAGIC_ext
411 570
412static MGVTBL coro_cv_vtbl = { 571static MGVTBL coro_cv_vtbl = {
413 0, 0, 0, 0, 572 0, 0, 0, 0,
414 coro_cv_free 573 coro_cv_free
415}; 574};
416
417#define CORO_MAGIC_NN(sv, type) \
418 (expect_true (SvMAGIC (sv)->mg_type == type) \
419 ? SvMAGIC (sv) \
420 : mg_find (sv, type))
421
422#define CORO_MAGIC(sv, type) \
423 (expect_true (SvMAGIC (sv)) \
424 ? CORO_MAGIC_NN (sv, type) \
425 : 0)
426
427#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
428#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
429
430INLINE struct coro *
431SvSTATE_ (pTHX_ SV *coro)
432{
433 HV *stash;
434 MAGIC *mg;
435
436 if (SvROK (coro))
437 coro = SvRV (coro);
438
439 if (expect_false (SvTYPE (coro) != SVt_PVHV))
440 croak ("Coro::State object required");
441
442 stash = SvSTASH (coro);
443 if (expect_false (stash != coro_stash && stash != coro_state_stash))
444 {
445 /* very slow, but rare, check */
446 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
447 croak ("Coro::State object required");
448 }
449
450 mg = CORO_MAGIC_state (coro);
451 return (struct coro *)mg->mg_ptr;
452}
453
454#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
455
456/* faster than SvSTATE, but expects a coroutine hv */
457#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
458#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
459 575
460/* the next two functions merely cache the padlists */ 576/* the next two functions merely cache the padlists */
461static void 577static void
462get_padlist (pTHX_ CV *cv) 578get_padlist (pTHX_ CV *cv)
463{ 579{
… …
474 CV *cp = Perl_cv_clone (aTHX_ cv); 590 CV *cp = Perl_cv_clone (aTHX_ cv);
475 CvPADLIST (cv) = CvPADLIST (cp); 591 CvPADLIST (cv) = CvPADLIST (cp);
476 CvPADLIST (cp) = 0; 592 CvPADLIST (cp) = 0;
477 SvREFCNT_dec (cp); 593 SvREFCNT_dec (cp);
478#else 594#else
479 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 595 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
480#endif 596#endif
481 } 597 }
482} 598}
483 599
484static void 600static void
… …
491 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 607 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
492 608
493 av = (AV *)mg->mg_obj; 609 av = (AV *)mg->mg_obj;
494 610
495 if (expect_false (AvFILLp (av) >= AvMAX (av))) 611 if (expect_false (AvFILLp (av) >= AvMAX (av)))
496 av_extend (av, AvMAX (av) + 1); 612 av_extend (av, AvFILLp (av) + 1);
497 613
498 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 614 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
499} 615}
500 616
501/** load & save, init *******************************************************/ 617/** load & save, init *******************************************************/
618
619/* swap sv heads, at least logically */
620static void
621swap_svs (pTHX_ Coro__State c)
622{
623 int i;
624
625 for (i = 0; i <= AvFILLp (c->swap_sv); )
626 {
627 SV *a = AvARRAY (c->swap_sv)[i++];
628 SV *b = AvARRAY (c->swap_sv)[i++];
629
630 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
631 SV tmp;
632
633 /* swap sv_any */
634 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
635
636 /* swap sv_flags */
637 SvFLAGS (&tmp) = SvFLAGS (a);
638 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
639 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
640
641#if PERL_VERSION_ATLEAST (5,10,0)
642 /* perl 5.10 complicates this _quite_ a bit, but it also is
643 * much faster, so no quarrels here. alternatively, we could
644 * sv_upgrade to avoid this.
645 */
646 {
647 /* swap sv_u */
648 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
649
650 /* if SvANY points to the head, we need to adjust the pointers,
651 * as the pointer for a still points to b, and maybe vice versa.
652 */
653 #define svany_in_head(type) \
654 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
655
656 if (svany_in_head (SvTYPE (a)))
657 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
658
659 if (svany_in_head (SvTYPE (b)))
660 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
661 }
662#endif
663 }
664}
665
666#define SWAP_SVS(coro) \
667 if (expect_false ((coro)->swap_sv)) \
668 swap_svs (aTHX_ (coro))
669
670static void
671on_enterleave_call (pTHX_ SV *cb);
502 672
503static void 673static void
504load_perl (pTHX_ Coro__State c) 674load_perl (pTHX_ Coro__State c)
505{ 675{
506 perl_slots *slot = c->slot; 676 perl_slots *slot = c->slot;
507 c->slot = 0; 677 c->slot = 0;
508 678
509 PL_mainstack = c->mainstack; 679 PL_mainstack = c->mainstack;
510 680
511 GvSV (PL_defgv) = slot->defsv; 681 GvSV (PL_defgv) = slot->defsv;
512 GvAV (PL_defgv) = slot->defav; 682 GvAV (PL_defgv) = slot->defav;
513 GvSV (PL_errgv) = slot->errsv; 683 GvSV (PL_errgv) = slot->errsv;
514 GvSV (irsgv) = slot->irsgv; 684 GvSV (irsgv) = slot->irsgv;
685 GvHV (PL_hintgv) = slot->hinthv;
515 686
516 #define VAR(name,type) PL_ ## name = slot->name; 687 #define VAR(name,type) PL_ ## name = slot->name;
517 # include "state.h" 688 # include "state.h"
518 #undef VAR 689 #undef VAR
519 690
… …
533 PUTBACK; 704 PUTBACK;
534 } 705 }
535 706
536 slf_frame = c->slf_frame; 707 slf_frame = c->slf_frame;
537 CORO_THROW = c->except; 708 CORO_THROW = c->except;
709
710 if (expect_false (enable_times))
711 {
712 if (expect_false (!times_valid))
713 coro_times_update ();
714
715 coro_times_sub (c);
716 }
717
718 if (expect_false (c->on_enter))
719 {
720 int i;
721
722 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
723 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
724 }
725
726 SWAP_SVS (c);
538} 727}
539 728
540static void 729static void
541save_perl (pTHX_ Coro__State c) 730save_perl (pTHX_ Coro__State c)
542{ 731{
732 SWAP_SVS (c);
733
734 if (expect_false (c->on_leave))
735 {
736 int i;
737
738 for (i = AvFILLp (c->on_leave); i >= 0; --i)
739 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
740 }
741
742 times_valid = 0;
743
744 if (expect_false (enable_times))
745 {
746 coro_times_update (); times_valid = 1;
747 coro_times_add (c);
748 }
749
543 c->except = CORO_THROW; 750 c->except = CORO_THROW;
544 c->slf_frame = slf_frame; 751 c->slf_frame = slf_frame;
545 752
546 { 753 {
547 dSP; 754 dSP;
… …
560 { 767 {
561 while (expect_true (cxix >= 0)) 768 while (expect_true (cxix >= 0))
562 { 769 {
563 PERL_CONTEXT *cx = &ccstk[cxix--]; 770 PERL_CONTEXT *cx = &ccstk[cxix--];
564 771
565 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 772 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
566 { 773 {
567 CV *cv = cx->blk_sub.cv; 774 CV *cv = cx->blk_sub.cv;
568 775
569 if (expect_true (CvDEPTH (cv))) 776 if (expect_true (CvDEPTH (cv)))
570 { 777 {
… …
594 /* we manually unroll here, as usually 2 slots is enough */ 801 /* we manually unroll here, as usually 2 slots is enough */
595 if (SLOT_COUNT >= 1) CXINC; 802 if (SLOT_COUNT >= 1) CXINC;
596 if (SLOT_COUNT >= 2) CXINC; 803 if (SLOT_COUNT >= 2) CXINC;
597 if (SLOT_COUNT >= 3) CXINC; 804 if (SLOT_COUNT >= 3) CXINC;
598 { 805 {
599 int i; 806 unsigned int i;
600 for (i = 3; i < SLOT_COUNT; ++i) 807 for (i = 3; i < SLOT_COUNT; ++i)
601 CXINC; 808 CXINC;
602 } 809 }
603 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 810 cxstack_ix -= SLOT_COUNT; /* undo allocation */
604 811
605 c->mainstack = PL_mainstack; 812 c->mainstack = PL_mainstack;
606 813
607 { 814 {
608 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 815 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
609 816
610 slot->defav = GvAV (PL_defgv); 817 slot->defav = GvAV (PL_defgv);
611 slot->defsv = DEFSV; 818 slot->defsv = DEFSV;
612 slot->errsv = ERRSV; 819 slot->errsv = ERRSV;
613 slot->irsgv = GvSV (irsgv); 820 slot->irsgv = GvSV (irsgv);
821 slot->hinthv = GvHV (PL_hintgv);
614 822
615 #define VAR(name,type) slot->name = PL_ ## name; 823 #define VAR(name,type) slot->name = PL_ ## name;
616 # include "state.h" 824 # include "state.h"
617 #undef VAR 825 #undef VAR
618 } 826 }
… …
745#endif 953#endif
746 954
747/* 955/*
748 * This overrides the default magic get method of %SIG elements. 956 * This overrides the default magic get method of %SIG elements.
749 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 957 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
750 * and instead of tryign to save and restore the hash elements, we just provide 958 * and instead of trying to save and restore the hash elements, we just provide
751 * readback here. 959 * readback here.
752 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
753 * not expecting this to actually change the hook. This is a potential problem
754 * when a schedule happens then, but we ignore this.
755 */ 960 */
756static int 961static int
757coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 962coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
758{ 963{
759 const char *s = MgPV_nolen_const (mg); 964 const char *s = MgPV_nolen_const (mg);
… …
812 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1017 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
813 1018
814 if (svp) 1019 if (svp)
815 { 1020 {
816 SV *old = *svp; 1021 SV *old = *svp;
817 *svp = newSVsv (sv); 1022 *svp = SvOK (sv) ? newSVsv (sv) : 0;
818 SvREFCNT_dec (old); 1023 SvREFCNT_dec (old);
819 return 0; 1024 return 0;
820 } 1025 }
821 } 1026 }
822 1027
… …
834slf_check_nop (pTHX_ struct CoroSLF *frame) 1039slf_check_nop (pTHX_ struct CoroSLF *frame)
835{ 1040{
836 return 0; 1041 return 0;
837} 1042}
838 1043
839static UNOP coro_setup_op; 1044static int
1045slf_check_repeat (pTHX_ struct CoroSLF *frame)
1046{
1047 return 1;
1048}
1049
1050static UNOP init_perl_op;
840 1051
841static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1052static void NOINLINE /* noinline to keep it out of the transfer fast path */
842coro_setup (pTHX_ struct coro *coro) 1053init_perl (pTHX_ struct coro *coro)
843{ 1054{
844 /* 1055 /*
845 * emulate part of the perl startup here. 1056 * emulate part of the perl startup here.
846 */ 1057 */
847 coro_init_stacks (aTHX); 1058 coro_init_stacks (aTHX);
848 1059
849 PL_runops = RUNOPS_DEFAULT; 1060 PL_runops = RUNOPS_DEFAULT;
850 PL_curcop = &PL_compiling; 1061 PL_curcop = &PL_compiling;
851 PL_in_eval = EVAL_NULL; 1062 PL_in_eval = EVAL_NULL;
852 PL_comppad = 0; 1063 PL_comppad = 0;
1064 PL_comppad_name = 0;
1065 PL_comppad_name_fill = 0;
1066 PL_comppad_name_floor = 0;
853 PL_curpm = 0; 1067 PL_curpm = 0;
854 PL_curpad = 0; 1068 PL_curpad = 0;
855 PL_localizing = 0; 1069 PL_localizing = 0;
856 PL_dirty = 0;
857 PL_restartop = 0; 1070 PL_restartop = 0;
858#if PERL_VERSION_ATLEAST (5,10,0) 1071#if PERL_VERSION_ATLEAST (5,10,0)
859 PL_parser = 0; 1072 PL_parser = 0;
860#endif 1073#endif
1074 PL_hints = 0;
861 1075
862 /* recreate the die/warn hooks */ 1076 /* recreate the die/warn hooks */
863 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1077 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
864 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1078 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
865 1079
866 GvSV (PL_defgv) = newSV (0); 1080 GvSV (PL_defgv) = newSV (0);
867 GvAV (PL_defgv) = coro->args; coro->args = 0; 1081 GvAV (PL_defgv) = coro->args; coro->args = 0;
868 GvSV (PL_errgv) = newSV (0); 1082 GvSV (PL_errgv) = newSV (0);
869 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1083 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1084 GvHV (PL_hintgv) = 0;
870 PL_rs = newSVsv (GvSV (irsgv)); 1085 PL_rs = newSVsv (GvSV (irsgv));
871 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1086 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
872 1087
873 { 1088 {
874 dSP; 1089 dSP;
… …
891 */ 1106 */
892 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1107 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
893 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1108 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
894 1109
895 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1110 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
896 coro_setup_op.op_next = PL_op; 1111 init_perl_op.op_next = PL_op;
897 coro_setup_op.op_type = OP_CUSTOM; 1112 init_perl_op.op_type = OP_ENTERSUB;
898 coro_setup_op.op_ppaddr = pp_slf; 1113 init_perl_op.op_ppaddr = pp_slf;
899 /* no flags etc. required, as an init function won't be called */ 1114 /* no flags etc. required, as an init function won't be called */
900 1115
901 PL_op = (OP *)&coro_setup_op; 1116 PL_op = (OP *)&init_perl_op;
902 1117
903 /* copy throw, in case it was set before coro_setup */ 1118 /* copy throw, in case it was set before init_perl */
904 CORO_THROW = coro->except; 1119 CORO_THROW = coro->except;
905}
906 1120
1121 SWAP_SVS (coro);
1122
1123 if (expect_false (enable_times))
1124 {
1125 coro_times_update ();
1126 coro_times_sub (coro);
1127 }
1128}
1129
907static void 1130static void
908coro_destruct (pTHX_ struct coro *coro) 1131coro_unwind_stacks (pTHX)
909{ 1132{
910 if (!IN_DESTRUCT) 1133 if (!IN_DESTRUCT)
911 { 1134 {
912 /* restore all saved variables and stuff */ 1135 /* restore all saved variables and stuff */
913 LEAVE_SCOPE (0); 1136 LEAVE_SCOPE (0);
… …
921 POPSTACK_TO (PL_mainstack); 1144 POPSTACK_TO (PL_mainstack);
922 1145
923 /* unwind main stack */ 1146 /* unwind main stack */
924 dounwind (-1); 1147 dounwind (-1);
925 } 1148 }
1149}
926 1150
927 SvREFCNT_dec (GvSV (PL_defgv)); 1151static void
928 SvREFCNT_dec (GvAV (PL_defgv)); 1152destroy_perl (pTHX_ struct coro *coro)
929 SvREFCNT_dec (GvSV (PL_errgv)); 1153{
930 SvREFCNT_dec (PL_defoutgv); 1154 SV *svf [9];
931 SvREFCNT_dec (PL_rs);
932 SvREFCNT_dec (GvSV (irsgv));
933 1155
934 SvREFCNT_dec (PL_diehook);
935 SvREFCNT_dec (PL_warnhook);
936 1156 {
1157 struct coro *current = SvSTATE_current;
1158
1159 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1160
1161 save_perl (aTHX_ current);
1162 load_perl (aTHX_ coro);
1163
1164 coro_unwind_stacks (aTHX);
1165 coro_destruct_stacks (aTHX);
1166
1167 /* restore swapped sv's */
1168 SWAP_SVS (coro);
1169
1170 // now save some sv's to be free'd later
1171 svf [0] = GvSV (PL_defgv);
1172 svf [1] = (SV *)GvAV (PL_defgv);
1173 svf [2] = GvSV (PL_errgv);
1174 svf [3] = (SV *)PL_defoutgv;
1175 svf [4] = PL_rs;
1176 svf [5] = GvSV (irsgv);
1177 svf [6] = (SV *)GvHV (PL_hintgv);
1178 svf [7] = PL_diehook;
1179 svf [8] = PL_warnhook;
1180 assert (9 == sizeof (svf) / sizeof (*svf));
1181
1182 load_perl (aTHX_ current);
1183 }
1184
1185 {
1186 unsigned int i;
1187
1188 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1189 SvREFCNT_dec (svf [i]);
1190
937 SvREFCNT_dec (coro->saved_deffh); 1191 SvREFCNT_dec (coro->saved_deffh);
938 SvREFCNT_dec (coro->rouse_cb); 1192 SvREFCNT_dec (coro->rouse_cb);
939 SvREFCNT_dec (coro->invoke_cb); 1193 SvREFCNT_dec (coro->invoke_cb);
940 SvREFCNT_dec (coro->invoke_av); 1194 SvREFCNT_dec (coro->invoke_av);
941 1195 }
942 coro_destruct_stacks (aTHX);
943} 1196}
944 1197
945INLINE void 1198INLINE void
946free_coro_mortal (pTHX) 1199free_coro_mortal (pTHX)
947{ 1200{
… …
955static int 1208static int
956runops_trace (pTHX) 1209runops_trace (pTHX)
957{ 1210{
958 COP *oldcop = 0; 1211 COP *oldcop = 0;
959 int oldcxix = -2; 1212 int oldcxix = -2;
960 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
961 coro_cctx *cctx = coro->cctx;
962 1213
963 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1214 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
964 { 1215 {
965 PERL_ASYNC_CHECK (); 1216 PERL_ASYNC_CHECK ();
966 1217
967 if (cctx->flags & CC_TRACE_ALL) 1218 if (cctx_current->flags & CC_TRACE_ALL)
968 { 1219 {
969 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1220 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
970 { 1221 {
971 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1222 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
972 SV **bot, **top; 1223 SV **bot, **top;
973 AV *av = newAV (); /* return values */ 1224 AV *av = newAV (); /* return values */
974 SV **cb; 1225 SV **cb;
… …
1011 1262
1012 if (PL_curcop != &PL_compiling) 1263 if (PL_curcop != &PL_compiling)
1013 { 1264 {
1014 SV **cb; 1265 SV **cb;
1015 1266
1016 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1267 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
1017 { 1268 {
1018 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1269 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1019 1270
1020 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1271 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1021 { 1272 {
1022 runops_proc_t old_runops = PL_runops;
1023 dSP; 1273 dSP;
1024 GV *gv = CvGV (cx->blk_sub.cv); 1274 GV *gv = CvGV (cx->blk_sub.cv);
1025 SV *fullname = sv_2mortal (newSV (0)); 1275 SV *fullname = sv_2mortal (newSV (0));
1026 1276
1027 if (isGV (gv)) 1277 if (isGV (gv))
… …
1045 } 1295 }
1046 1296
1047 oldcxix = cxstack_ix; 1297 oldcxix = cxstack_ix;
1048 } 1298 }
1049 1299
1050 if (cctx->flags & CC_TRACE_LINE) 1300 if (cctx_current->flags & CC_TRACE_LINE)
1051 { 1301 {
1052 dSP; 1302 dSP;
1053 1303
1054 PL_runops = RUNOPS_DEFAULT; 1304 PL_runops = RUNOPS_DEFAULT;
1055 ENTER; 1305 ENTER;
… …
1074 1324
1075 TAINT_NOT; 1325 TAINT_NOT;
1076 return 0; 1326 return 0;
1077} 1327}
1078 1328
1079static struct coro_cctx *cctx_ssl_cctx;
1080static struct CoroSLF cctx_ssl_frame; 1329static struct CoroSLF cctx_ssl_frame;
1081 1330
1082static void 1331static void
1083slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1332slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1084{ 1333{
1085 ta->prev = (struct coro *)cctx_ssl_cctx;
1086 ta->next = 0; 1334 ta->prev = 0;
1087} 1335}
1088 1336
1089static int 1337static int
1090slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1338slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1091{ 1339{
… …
1094 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1342 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1095} 1343}
1096 1344
1097/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1345/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1098static void NOINLINE 1346static void NOINLINE
1099cctx_prepare (pTHX_ coro_cctx *cctx) 1347cctx_prepare (pTHX)
1100{ 1348{
1101 PL_top_env = &PL_start_env; 1349 PL_top_env = &PL_start_env;
1102 1350
1103 if (cctx->flags & CC_TRACE) 1351 if (cctx_current->flags & CC_TRACE)
1104 PL_runops = runops_trace; 1352 PL_runops = runops_trace;
1105 1353
1106 /* we already must be executing an SLF op, there is no other valid way 1354 /* we already must be executing an SLF op, there is no other valid way
1107 * that can lead to creation of a new cctx */ 1355 * that can lead to creation of a new cctx */
1108 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1356 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1109 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1357 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1110 1358
1111 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ 1359 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1112 cctx_ssl_cctx = cctx;
1113 cctx_ssl_frame = slf_frame; 1360 cctx_ssl_frame = slf_frame;
1114 1361
1115 slf_frame.prepare = slf_prepare_set_stacklevel; 1362 slf_frame.prepare = slf_prepare_set_stacklevel;
1116 slf_frame.check = slf_check_set_stacklevel; 1363 slf_frame.check = slf_check_set_stacklevel;
1117} 1364}
… …
1140 /* normally we would need to skip the entersub here */ 1387 /* normally we would need to skip the entersub here */
1141 /* not doing so will re-execute it, which is exactly what we want */ 1388 /* not doing so will re-execute it, which is exactly what we want */
1142 /* PL_nop = PL_nop->op_next */ 1389 /* PL_nop = PL_nop->op_next */
1143 1390
1144 /* inject a fake subroutine call to cctx_init */ 1391 /* inject a fake subroutine call to cctx_init */
1145 cctx_prepare (aTHX_ (coro_cctx *)arg); 1392 cctx_prepare (aTHX);
1146 1393
1147 /* cctx_run is the alternative tail of transfer() */ 1394 /* cctx_run is the alternative tail of transfer() */
1148 transfer_tail (aTHX); 1395 transfer_tail (aTHX);
1149 1396
1150 /* somebody or something will hit me for both perl_run and PL_restartop */ 1397 /* somebody or something will hit me for both perl_run and PL_restartop */
1151 PL_restartop = PL_op; 1398 PL_restartop = PL_op;
1152 perl_run (PL_curinterp); 1399 perl_run (PL_curinterp);
1153 /* 1400 /*
1154 * Unfortunately, there is no way to get at the return values of the 1401 * Unfortunately, there is no way to get at the return values of the
1155 * coro body here, as perl_run destroys these 1402 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1403 * runtime errors here, as this is just a random interpreter, not a thread.
1156 */ 1404 */
1157 1405
1158 /* 1406 /*
1159 * If perl-run returns we assume exit() was being called or the coro 1407 * If perl-run returns we assume exit() was being called or the coro
1160 * fell off the end, which seems to be the only valid (non-bug) 1408 * fell off the end, which seems to be the only valid (non-bug)
1161 * reason for perl_run to return. We try to exit by jumping to the 1409 * reason for perl_run to return. We try to exit by jumping to the
1162 * bootstrap-time "top" top_env, as we cannot restore the "main" 1410 * bootstrap-time "top" top_env, as we cannot restore the "main"
1163 * coroutine as Coro has no such concept 1411 * coroutine as Coro has no such concept.
1412 * This actually isn't valid with the pthread backend, but OSes requiring
1413 * that backend are too broken to do it in a standards-compliant way.
1164 */ 1414 */
1165 PL_top_env = main_top_env; 1415 PL_top_env = main_top_env;
1166 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1416 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1167 } 1417 }
1168} 1418}
… …
1245cctx_destroy (coro_cctx *cctx) 1495cctx_destroy (coro_cctx *cctx)
1246{ 1496{
1247 if (!cctx) 1497 if (!cctx)
1248 return; 1498 return;
1249 1499
1500 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1501
1250 --cctx_count; 1502 --cctx_count;
1251 coro_destroy (&cctx->cctx); 1503 coro_destroy (&cctx->cctx);
1252 1504
1253 /* coro_transfer creates new, empty cctx's */ 1505 /* coro_transfer creates new, empty cctx's */
1254 if (cctx->sptr) 1506 if (cctx->sptr)
… …
1317 /* TODO: throwing up here is considered harmful */ 1569 /* TODO: throwing up here is considered harmful */
1318 1570
1319 if (expect_true (prev != next)) 1571 if (expect_true (prev != next))
1320 { 1572 {
1321 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1573 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1322 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1574 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1323 1575
1324 if (expect_false (next->flags & CF_RUNNING))
1325 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1326
1327 if (expect_false (next->flags & CF_DESTROYED)) 1576 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1328 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1577 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1329 1578
1330#if !PERL_VERSION_ATLEAST (5,10,0) 1579#if !PERL_VERSION_ATLEAST (5,10,0)
1331 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1580 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1332 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1581 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1333#endif 1582#endif
… …
1339transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1588transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1340{ 1589{
1341 dSTACKLEVEL; 1590 dSTACKLEVEL;
1342 1591
1343 /* sometimes transfer is only called to set idle_sp */ 1592 /* sometimes transfer is only called to set idle_sp */
1344 if (expect_false (!next)) 1593 if (expect_false (!prev))
1345 { 1594 {
1346 ((coro_cctx *)prev)->idle_sp = STACKLEVEL; 1595 cctx_current->idle_sp = STACKLEVEL;
1347 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1596 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1348 } 1597 }
1349 else if (expect_true (prev != next)) 1598 else if (expect_true (prev != next))
1350 { 1599 {
1351 coro_cctx *prev__cctx; 1600 coro_cctx *cctx_prev;
1352 1601
1353 if (expect_false (prev->flags & CF_NEW)) 1602 if (expect_false (prev->flags & CF_NEW))
1354 { 1603 {
1355 /* create a new empty/source context */ 1604 /* create a new empty/source context */
1356 prev->cctx = cctx_new_empty ();
1357 prev->flags &= ~CF_NEW; 1605 prev->flags &= ~CF_NEW;
1358 prev->flags |= CF_RUNNING; 1606 prev->flags |= CF_RUNNING;
1359 } 1607 }
1360 1608
1361 prev->flags &= ~CF_RUNNING; 1609 prev->flags &= ~CF_RUNNING;
… …
1367 if (expect_false (next->flags & CF_NEW)) 1615 if (expect_false (next->flags & CF_NEW))
1368 { 1616 {
1369 /* need to start coroutine */ 1617 /* need to start coroutine */
1370 next->flags &= ~CF_NEW; 1618 next->flags &= ~CF_NEW;
1371 /* setup coroutine call */ 1619 /* setup coroutine call */
1372 coro_setup (aTHX_ next); 1620 init_perl (aTHX_ next);
1373 } 1621 }
1374 else 1622 else
1375 load_perl (aTHX_ next); 1623 load_perl (aTHX_ next);
1376 1624
1377 prev__cctx = prev->cctx;
1378
1379 /* possibly untie and reuse the cctx */ 1625 /* possibly untie and reuse the cctx */
1380 if (expect_true ( 1626 if (expect_true (
1381 prev__cctx->idle_sp == STACKLEVEL 1627 cctx_current->idle_sp == STACKLEVEL
1382 && !(prev__cctx->flags & CC_TRACE) 1628 && !(cctx_current->flags & CC_TRACE)
1383 && !force_cctx 1629 && !force_cctx
1384 )) 1630 ))
1385 { 1631 {
1386 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1632 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1387 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1633 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1388 1634
1389 prev->cctx = 0;
1390
1391 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1635 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1392 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1636 /* without this the next cctx_get might destroy the running cctx while still in use */
1393 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1637 if (expect_false (CCTX_EXPIRED (cctx_current)))
1394 if (!next->cctx) 1638 if (expect_true (!next->cctx))
1395 next->cctx = cctx_get (aTHX); 1639 next->cctx = cctx_get (aTHX);
1396 1640
1397 cctx_put (prev__cctx); 1641 cctx_put (cctx_current);
1398 } 1642 }
1643 else
1644 prev->cctx = cctx_current;
1399 1645
1400 ++next->usecount; 1646 ++next->usecount;
1401 1647
1402 if (expect_true (!next->cctx)) 1648 cctx_prev = cctx_current;
1403 next->cctx = cctx_get (aTHX); 1649 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1404 1650
1405 if (expect_false (prev__cctx != next->cctx)) 1651 next->cctx = 0;
1652
1653 if (expect_false (cctx_prev != cctx_current))
1406 { 1654 {
1407 prev__cctx->top_env = PL_top_env; 1655 cctx_prev->top_env = PL_top_env;
1408 PL_top_env = next->cctx->top_env; 1656 PL_top_env = cctx_current->top_env;
1409 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1657 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1410 } 1658 }
1411 1659
1412 transfer_tail (aTHX); 1660 transfer_tail (aTHX);
1413 } 1661 }
1414} 1662}
… …
1422coro_state_destroy (pTHX_ struct coro *coro) 1670coro_state_destroy (pTHX_ struct coro *coro)
1423{ 1671{
1424 if (coro->flags & CF_DESTROYED) 1672 if (coro->flags & CF_DESTROYED)
1425 return 0; 1673 return 0;
1426 1674
1427 if (coro->on_destroy) 1675 if (coro->on_destroy && !PL_dirty)
1428 coro->on_destroy (aTHX_ coro); 1676 coro->on_destroy (aTHX_ coro);
1429 1677
1430 coro->flags |= CF_DESTROYED; 1678 coro->flags |= CF_DESTROYED;
1431 1679
1432 if (coro->flags & CF_READY) 1680 if (coro->flags & CF_READY)
… …
1436 --coro_nready; 1684 --coro_nready;
1437 } 1685 }
1438 else 1686 else
1439 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1687 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1440 1688
1441 if (coro->mainstack && coro->mainstack != main_mainstack) 1689 if (coro->mainstack
1442 { 1690 && coro->mainstack != main_mainstack
1443 struct coro temp; 1691 && coro->slot
1444 1692 && !PL_dirty)
1445 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1446
1447 save_perl (aTHX_ &temp);
1448 load_perl (aTHX_ coro); 1693 destroy_perl (aTHX_ coro);
1449 1694
1450 coro_destruct (aTHX_ coro); 1695 if (coro->next) coro->next->prev = coro->prev;
1451 1696 if (coro->prev) coro->prev->next = coro->next;
1452 load_perl (aTHX_ &temp); 1697 if (coro == coro_first) coro_first = coro->next;
1453
1454 coro->slot = 0;
1455 }
1456 1698
1457 cctx_destroy (coro->cctx); 1699 cctx_destroy (coro->cctx);
1458 SvREFCNT_dec (coro->startcv); 1700 SvREFCNT_dec (coro->startcv);
1459 SvREFCNT_dec (coro->args); 1701 SvREFCNT_dec (coro->args);
1702 SvREFCNT_dec (coro->swap_sv);
1460 SvREFCNT_dec (CORO_THROW); 1703 SvREFCNT_dec (CORO_THROW);
1461
1462 if (coro->next) coro->next->prev = coro->prev;
1463 if (coro->prev) coro->prev->next = coro->next;
1464 if (coro == coro_first) coro_first = coro->next;
1465 1704
1466 return 1; 1705 return 1;
1467} 1706}
1468 1707
1469static int 1708static int
… …
1519 1758
1520 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1759 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1521 TRANSFER (ta, 1); 1760 TRANSFER (ta, 1);
1522} 1761}
1523 1762
1524/*****************************************************************************/
1525/* gensub: simple closure generation utility */
1526
1527#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1528
1529/* create a closure from XS, returns a code reference */
1530/* the arg can be accessed via GENSUB_ARG from the callback */
1531/* the callback must use dXSARGS/XSRETURN */
1532static SV *
1533gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1534{
1535 CV *cv = (CV *)newSV (0);
1536
1537 sv_upgrade ((SV *)cv, SVt_PVCV);
1538
1539 CvANON_on (cv);
1540 CvISXSUB_on (cv);
1541 CvXSUB (cv) = xsub;
1542 GENSUB_ARG = arg;
1543
1544 return newRV_noinc ((SV *)cv);
1545}
1546
1547/** Coro ********************************************************************/ 1763/** Coro ********************************************************************/
1548 1764
1549INLINE void 1765INLINE void
1550coro_enq (pTHX_ struct coro *coro) 1766coro_enq (pTHX_ struct coro *coro)
1551{ 1767{
1552 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1768 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1553}
1554 1769
1555INLINE SV * 1770 SvREFCNT_inc_NN (coro->hv);
1771
1772 coro->next_ready = 0;
1773 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1774 ready [1] = coro;
1775}
1776
1777INLINE struct coro *
1556coro_deq (pTHX) 1778coro_deq (pTHX)
1557{ 1779{
1558 int prio; 1780 int prio;
1559 1781
1560 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1782 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1561 if (AvFILLp (coro_ready [prio]) >= 0) 1783 {
1562 return av_shift (coro_ready [prio]); 1784 struct coro **ready = coro_ready [prio];
1785
1786 if (ready [0])
1787 {
1788 struct coro *coro = ready [0];
1789 ready [0] = coro->next_ready;
1790 return coro;
1791 }
1792 }
1563 1793
1564 return 0; 1794 return 0;
1795}
1796
1797static void
1798invoke_sv_ready_hook_helper (void)
1799{
1800 dTHX;
1801 dSP;
1802
1803 ENTER;
1804 SAVETMPS;
1805
1806 PUSHMARK (SP);
1807 PUTBACK;
1808 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1809
1810 FREETMPS;
1811 LEAVE;
1565} 1812}
1566 1813
1567static int 1814static int
1568api_ready (pTHX_ SV *coro_sv) 1815api_ready (pTHX_ SV *coro_sv)
1569{ 1816{
1570 struct coro *coro;
1571 SV *sv_hook;
1572 void (*xs_hook)(void);
1573
1574 if (SvROK (coro_sv))
1575 coro_sv = SvRV (coro_sv);
1576
1577 coro = SvSTATE (coro_sv); 1817 struct coro *coro = SvSTATE (coro_sv);
1578 1818
1579 if (coro->flags & CF_READY) 1819 if (coro->flags & CF_READY)
1580 return 0; 1820 return 0;
1581 1821
1582 coro->flags |= CF_READY; 1822 coro->flags |= CF_READY;
1583 1823
1584 sv_hook = coro_nready ? 0 : coro_readyhook;
1585 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1586
1587 coro_enq (aTHX_ coro); 1824 coro_enq (aTHX_ coro);
1588 ++coro_nready;
1589 1825
1590 if (sv_hook) 1826 if (!coro_nready++)
1591 { 1827 if (coroapi.readyhook)
1592 dSP; 1828 coroapi.readyhook ();
1593
1594 ENTER;
1595 SAVETMPS;
1596
1597 PUSHMARK (SP);
1598 PUTBACK;
1599 call_sv (sv_hook, G_VOID | G_DISCARD);
1600
1601 FREETMPS;
1602 LEAVE;
1603 }
1604
1605 if (xs_hook)
1606 xs_hook ();
1607 1829
1608 return 1; 1830 return 1;
1609} 1831}
1610 1832
1611static int 1833static int
… …
1634static void 1856static void
1635prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1857prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1636{ 1858{
1637 for (;;) 1859 for (;;)
1638 { 1860 {
1639 SV *next_sv = coro_deq (aTHX); 1861 struct coro *next = coro_deq (aTHX);
1640 1862
1641 if (expect_true (next_sv)) 1863 if (expect_true (next))
1642 { 1864 {
1643 struct coro *next = SvSTATE_hv (next_sv);
1644
1645 /* cannot transfer to destroyed coros, skip and look for next */ 1865 /* cannot transfer to destroyed coros, skip and look for next */
1646 if (expect_false (next->flags & CF_DESTROYED)) 1866 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1647 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1867 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1648 else 1868 else
1649 { 1869 {
1650 next->flags &= ~CF_READY; 1870 next->flags &= ~CF_READY;
1651 --coro_nready; 1871 --coro_nready;
1652 1872
1653 return prepare_schedule_to (aTHX_ ta, next); 1873 prepare_schedule_to (aTHX_ ta, next);
1874 break;
1654 } 1875 }
1655 } 1876 }
1656 else 1877 else
1657 { 1878 {
1658 /* nothing to schedule: call the idle handler */ 1879 /* nothing to schedule: call the idle handler */
1880 if (SvROK (sv_idle)
1881 && SvOBJECT (SvRV (sv_idle)))
1882 {
1883 if (SvRV (sv_idle) == SvRV (coro_current))
1884 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1885
1886 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1887 api_ready (aTHX_ SvRV (sv_idle));
1888 --coro_nready;
1889 }
1890 else
1891 {
1892 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1659 dSP; 1893 dSP;
1660 1894
1661 ENTER; 1895 ENTER;
1662 SAVETMPS; 1896 SAVETMPS;
1663 1897
1664 PUSHMARK (SP); 1898 PUSHMARK (SP);
1665 PUTBACK; 1899 PUTBACK;
1666 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); 1900 call_sv (sv_idle, G_VOID | G_DISCARD);
1667 1901
1668 FREETMPS; 1902 FREETMPS;
1669 LEAVE; 1903 LEAVE;
1904 }
1670 } 1905 }
1671 } 1906 }
1672} 1907}
1673 1908
1674INLINE void 1909INLINE void
… …
1745static void 1980static void
1746api_trace (pTHX_ SV *coro_sv, int flags) 1981api_trace (pTHX_ SV *coro_sv, int flags)
1747{ 1982{
1748 struct coro *coro = SvSTATE (coro_sv); 1983 struct coro *coro = SvSTATE (coro_sv);
1749 1984
1985 if (coro->flags & CF_RUNNING)
1986 croak ("cannot enable tracing on a running coroutine, caught");
1987
1750 if (flags & CC_TRACE) 1988 if (flags & CC_TRACE)
1751 { 1989 {
1752 if (!coro->cctx) 1990 if (!coro->cctx)
1753 coro->cctx = cctx_new_run (); 1991 coro->cctx = cctx_new_run ();
1754 else if (!(coro->cctx->flags & CC_TRACE)) 1992 else if (!(coro->cctx->flags & CC_TRACE))
1755 croak ("cannot enable tracing on coroutine with custom stack,"); 1993 croak ("cannot enable tracing on coroutine with custom stack, caught");
1756 1994
1757 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1995 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1758 } 1996 }
1759 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1997 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1760 { 1998 {
… …
1763 if (coro->flags & CF_RUNNING) 2001 if (coro->flags & CF_RUNNING)
1764 PL_runops = RUNOPS_DEFAULT; 2002 PL_runops = RUNOPS_DEFAULT;
1765 else 2003 else
1766 coro->slot->runops = RUNOPS_DEFAULT; 2004 coro->slot->runops = RUNOPS_DEFAULT;
1767 } 2005 }
2006}
2007
2008static void
2009coro_call_on_destroy (pTHX_ struct coro *coro)
2010{
2011 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
2012 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2013
2014 if (on_destroyp)
2015 {
2016 AV *on_destroy = (AV *)SvRV (*on_destroyp);
2017
2018 while (AvFILLp (on_destroy) >= 0)
2019 {
2020 dSP; /* don't disturb outer sp */
2021 SV *cb = av_pop (on_destroy);
2022
2023 PUSHMARK (SP);
2024
2025 if (statusp)
2026 {
2027 int i;
2028 AV *status = (AV *)SvRV (*statusp);
2029 EXTEND (SP, AvFILLp (status) + 1);
2030
2031 for (i = 0; i <= AvFILLp (status); ++i)
2032 PUSHs (AvARRAY (status)[i]);
2033 }
2034
2035 PUTBACK;
2036 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
2037 }
2038 }
2039}
2040
2041static void
2042slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2043{
2044 int i;
2045 HV *hv = (HV *)SvRV (coro_current);
2046 AV *av = newAV ();
2047
2048 /* items are actually not so common, so optimise for this case */
2049 if (items)
2050 {
2051 av_extend (av, items - 1);
2052
2053 for (i = 0; i < items; ++i)
2054 av_push (av, SvREFCNT_inc_NN (arg [i]));
2055 }
2056
2057 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2058
2059 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
2060 api_ready (aTHX_ sv_manager);
2061
2062 frame->prepare = prepare_schedule;
2063 frame->check = slf_check_repeat;
2064
2065 /* as a minor optimisation, we could unwind all stacks here */
2066 /* but that puts extra pressure on pp_slf, and is not worth much */
2067 /*coro_unwind_stacks (aTHX);*/
1768} 2068}
1769 2069
1770/*****************************************************************************/ 2070/*****************************************************************************/
1771/* async pool handler */ 2071/* async pool handler */
1772 2072
… …
1850 2150
1851static void 2151static void
1852coro_rouse_callback (pTHX_ CV *cv) 2152coro_rouse_callback (pTHX_ CV *cv)
1853{ 2153{
1854 dXSARGS; 2154 dXSARGS;
1855 SV *data = (SV *)GENSUB_ARG; 2155 SV *data = (SV *)S_GENSUB_ARG;
1856 2156
1857 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2157 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1858 { 2158 {
1859 /* first call, set args */ 2159 /* first call, set args */
2160 SV *coro = SvRV (data);
1860 AV *av = newAV (); 2161 AV *av = newAV ();
1861 SV *coro = SvRV (data);
1862 2162
1863 SvRV_set (data, (SV *)av); 2163 SvRV_set (data, (SV *)av);
1864 api_ready (aTHX_ coro);
1865 SvREFCNT_dec (coro);
1866 2164
1867 /* better take a full copy of the arguments */ 2165 /* better take a full copy of the arguments */
1868 while (items--) 2166 while (items--)
1869 av_store (av, items, newSVsv (ST (items))); 2167 av_store (av, items, newSVsv (ST (items)));
2168
2169 api_ready (aTHX_ coro);
2170 SvREFCNT_dec (coro);
1870 } 2171 }
1871 2172
1872 XSRETURN_EMPTY; 2173 XSRETURN_EMPTY;
1873} 2174}
1874 2175
… …
1891 2192
1892 EXTEND (SP, AvFILLp (av) + 1); 2193 EXTEND (SP, AvFILLp (av) + 1);
1893 for (i = 0; i <= AvFILLp (av); ++i) 2194 for (i = 0; i <= AvFILLp (av); ++i)
1894 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2195 PUSHs (sv_2mortal (AvARRAY (av)[i]));
1895 2196
1896 /* we have stolen the elements, so ste length to zero and free */ 2197 /* we have stolen the elements, so set length to zero and free */
1897 AvFILLp (av) = -1; 2198 AvFILLp (av) = -1;
1898 av_undef (av); 2199 av_undef (av);
1899 2200
1900 PUTBACK; 2201 PUTBACK;
1901 } 2202 }
… …
1925 || SvTYPE (SvRV (cb)) != SVt_PVCV 2226 || SvTYPE (SvRV (cb)) != SVt_PVCV
1926 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2227 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
1927 croak ("Coro::rouse_wait called with illegal callback argument,"); 2228 croak ("Coro::rouse_wait called with illegal callback argument,");
1928 2229
1929 { 2230 {
1930 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2231 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
1931 SV *data = (SV *)GENSUB_ARG; 2232 SV *data = (SV *)S_GENSUB_ARG;
1932 2233
1933 frame->data = (void *)data; 2234 frame->data = (void *)data;
1934 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2235 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
1935 frame->check = slf_check_rouse_wait; 2236 frame->check = slf_check_rouse_wait;
1936 } 2237 }
… …
1940coro_new_rouse_cb (pTHX) 2241coro_new_rouse_cb (pTHX)
1941{ 2242{
1942 HV *hv = (HV *)SvRV (coro_current); 2243 HV *hv = (HV *)SvRV (coro_current);
1943 struct coro *coro = SvSTATE_hv (hv); 2244 struct coro *coro = SvSTATE_hv (hv);
1944 SV *data = newRV_inc ((SV *)hv); 2245 SV *data = newRV_inc ((SV *)hv);
1945 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2246 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
1946 2247
1947 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2248 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
1948 SvREFCNT_dec (data); /* magicext increases the refcount */ 2249 SvREFCNT_dec (data); /* magicext increases the refcount */
1949 2250
1950 SvREFCNT_dec (coro->rouse_cb); 2251 SvREFCNT_dec (coro->rouse_cb);
… …
2175 if (PL_op->op_flags & OPf_STACKED) 2476 if (PL_op->op_flags & OPf_STACKED)
2176 { 2477 {
2177 if (items > slf_arga) 2478 if (items > slf_arga)
2178 { 2479 {
2179 slf_arga = items; 2480 slf_arga = items;
2180 free (slf_argv); 2481 Safefree (slf_argv);
2181 slf_argv = malloc (slf_arga * sizeof (SV *)); 2482 New (0, slf_argv, slf_arga, SV *);
2182 } 2483 }
2183 2484
2184 slf_argc = items; 2485 slf_argc = items;
2185 2486
2186 for (i = 0; i < items; ++i) 2487 for (i = 0; i < items; ++i)
… …
2188 } 2489 }
2189 else 2490 else
2190 slf_argc = 0; 2491 slf_argc = 0;
2191 2492
2192 PL_op->op_ppaddr = pp_slf; 2493 PL_op->op_ppaddr = pp_slf;
2193 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2494 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2194 2495
2195 PL_op = (OP *)&slf_restore; 2496 PL_op = (OP *)&slf_restore;
2497}
2498
2499/*****************************************************************************/
2500/* dynamic wind */
2501
2502static void
2503on_enterleave_call (pTHX_ SV *cb)
2504{
2505 dSP;
2506
2507 PUSHSTACK;
2508
2509 PUSHMARK (SP);
2510 PUTBACK;
2511 call_sv (cb, G_VOID | G_DISCARD);
2512 SPAGAIN;
2513
2514 POPSTACK;
2515}
2516
2517static SV *
2518coro_avp_pop_and_free (pTHX_ AV **avp)
2519{
2520 AV *av = *avp;
2521 SV *res = av_pop (av);
2522
2523 if (AvFILLp (av) < 0)
2524 {
2525 *avp = 0;
2526 SvREFCNT_dec (av);
2527 }
2528
2529 return res;
2530}
2531
2532static void
2533coro_pop_on_enter (pTHX_ void *coro)
2534{
2535 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2536 SvREFCNT_dec (cb);
2537}
2538
2539static void
2540coro_pop_on_leave (pTHX_ void *coro)
2541{
2542 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2543 on_enterleave_call (aTHX_ sv_2mortal (cb));
2196} 2544}
2197 2545
2198/*****************************************************************************/ 2546/*****************************************************************************/
2199/* PerlIO::cede */ 2547/* PerlIO::cede */
2200 2548
… …
2274/* Coro::Semaphore & Coro::Signal */ 2622/* Coro::Semaphore & Coro::Signal */
2275 2623
2276static SV * 2624static SV *
2277coro_waitarray_new (pTHX_ int count) 2625coro_waitarray_new (pTHX_ int count)
2278{ 2626{
2279 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2627 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2280 AV *av = newAV (); 2628 AV *av = newAV ();
2281 SV **ary; 2629 SV **ary;
2282 2630
2283 /* unfortunately, building manually saves memory */ 2631 /* unfortunately, building manually saves memory */
2284 Newx (ary, 2, SV *); 2632 Newx (ary, 2, SV *);
2285 AvALLOC (av) = ary; 2633 AvALLOC (av) = ary;
2634#if PERL_VERSION_ATLEAST (5,10,0)
2286 /*AvARRAY (av) = ary;*/ 2635 AvARRAY (av) = ary;
2636#else
2287 SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ 2637 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2638 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2639 SvPVX ((SV *)av) = (char *)ary;
2640#endif
2288 AvMAX (av) = 1; 2641 AvMAX (av) = 1;
2289 AvFILLp (av) = 0; 2642 AvFILLp (av) = 0;
2290 ary [0] = newSViv (count); 2643 ary [0] = newSViv (count);
2291 2644
2292 return newRV_noinc ((SV *)av); 2645 return newRV_noinc ((SV *)av);
… …
2421{ 2774{
2422 if (items >= 2) 2775 if (items >= 2)
2423 { 2776 {
2424 /* callback form */ 2777 /* callback form */
2425 AV *av = (AV *)SvRV (arg [0]); 2778 AV *av = (AV *)SvRV (arg [0]);
2426 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2779 SV *cb_cv = s_get_cv_croak (arg [1]);
2427 2780
2428 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2781 av_push (av, SvREFCNT_inc_NN (cb_cv));
2429 2782
2430 if (SvIVX (AvARRAY (av)[0]) > 0) 2783 if (SvIVX (AvARRAY (av)[0]) > 0)
2431 coro_semaphore_adjust (aTHX_ av, 0); 2784 coro_semaphore_adjust (aTHX_ av, 0);
2432 2785
2433 frame->prepare = prepare_nop; 2786 frame->prepare = prepare_nop;
… …
2457 AvARRAY (av)[0] = AvARRAY (av)[1]; 2810 AvARRAY (av)[0] = AvARRAY (av)[1];
2458 AvARRAY (av)[1] = cb; 2811 AvARRAY (av)[1] = cb;
2459 2812
2460 cb = av_shift (av); 2813 cb = av_shift (av);
2461 2814
2815 if (SvTYPE (cb) == SVt_PVCV)
2816 {
2817 dSP;
2818 PUSHMARK (SP);
2819 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2820 PUTBACK;
2821 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2822 }
2823 else
2824 {
2462 api_ready (aTHX_ cb); 2825 api_ready (aTHX_ cb);
2463 sv_setiv (cb, 0); /* signal waiter */ 2826 sv_setiv (cb, 0); /* signal waiter */
2827 }
2828
2464 SvREFCNT_dec (cb); 2829 SvREFCNT_dec (cb);
2465 2830
2466 --count; 2831 --count;
2467 } 2832 }
2468} 2833}
… …
2477static void 2842static void
2478slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2843slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2479{ 2844{
2480 AV *av = (AV *)SvRV (arg [0]); 2845 AV *av = (AV *)SvRV (arg [0]);
2481 2846
2847 if (items >= 2)
2848 {
2849 SV *cb_cv = s_get_cv_croak (arg [1]);
2850 av_push (av, SvREFCNT_inc_NN (cb_cv));
2851
2482 if (SvIVX (AvARRAY (av)[0])) 2852 if (SvIVX (AvARRAY (av)[0]))
2853 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2854
2855 frame->prepare = prepare_nop;
2856 frame->check = slf_check_nop;
2857 }
2858 else if (SvIVX (AvARRAY (av)[0]))
2483 { 2859 {
2484 SvIVX (AvARRAY (av)[0]) = 0; 2860 SvIVX (AvARRAY (av)[0]) = 0;
2485 frame->prepare = prepare_nop; 2861 frame->prepare = prepare_nop;
2486 frame->check = slf_check_nop; 2862 frame->check = slf_check_nop;
2487 } 2863 }
2488 else 2864 else
2489 { 2865 {
2490 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2866 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2491 2867
2492 av_push (av, waiter); 2868 av_push (av, waiter);
2493 2869
2494 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2870 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2495 frame->prepare = prepare_schedule; 2871 frame->prepare = prepare_schedule;
… …
2513 2889
2514static void 2890static void
2515coro_aio_callback (pTHX_ CV *cv) 2891coro_aio_callback (pTHX_ CV *cv)
2516{ 2892{
2517 dXSARGS; 2893 dXSARGS;
2518 AV *state = (AV *)GENSUB_ARG; 2894 AV *state = (AV *)S_GENSUB_ARG;
2519 SV *coro = av_pop (state); 2895 SV *coro = av_pop (state);
2520 SV *data_sv = newSV (sizeof (struct io_state)); 2896 SV *data_sv = newSV (sizeof (struct io_state));
2521 2897
2522 av_extend (state, items - 1); 2898 av_extend (state, items - 1);
2523 2899
… …
2637 3013
2638 for (i = 0; i < items; ++i) 3014 for (i = 0; i < items; ++i)
2639 PUSHs (arg [i]); 3015 PUSHs (arg [i]);
2640 3016
2641 /* now push the callback closure */ 3017 /* now push the callback closure */
2642 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3018 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2643 3019
2644 /* now call the AIO function - we assume our request is uncancelable */ 3020 /* now call the AIO function - we assume our request is uncancelable */
2645 PUTBACK; 3021 PUTBACK;
2646 call_sv ((SV *)req, G_VOID | G_DISCARD); 3022 call_sv ((SV *)req, G_VOID | G_DISCARD);
2647 } 3023 }
2648 3024
2649 /* now that the requets is going, we loop toll we have a result */ 3025 /* now that the request is going, we loop till we have a result */
2650 frame->data = (void *)state; 3026 frame->data = (void *)state;
2651 frame->prepare = prepare_schedule; 3027 frame->prepare = prepare_schedule;
2652 frame->check = slf_check_aio_req; 3028 frame->check = slf_check_aio_req;
2653} 3029}
2654 3030
… …
2661 3037
2662 XSRETURN_EMPTY; 3038 XSRETURN_EMPTY;
2663} 3039}
2664 3040
2665/*****************************************************************************/ 3041/*****************************************************************************/
3042
3043#if CORO_CLONE
3044# include "clone.c"
3045#endif
3046
3047/*****************************************************************************/
3048
3049static SV *
3050coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3051{
3052 SV *coro_sv;
3053 struct coro *coro;
3054 MAGIC *mg;
3055 HV *hv;
3056 SV *cb;
3057 int i;
3058
3059 if (argc > 0)
3060 {
3061 cb = s_get_cv_croak (argv [0]);
3062
3063 if (!is_coro)
3064 {
3065 if (CvISXSUB (cb))
3066 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3067
3068 if (!CvROOT (cb))
3069 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3070 }
3071 }
3072
3073 Newz (0, coro, 1, struct coro);
3074 coro->args = newAV ();
3075 coro->flags = CF_NEW;
3076
3077 if (coro_first) coro_first->prev = coro;
3078 coro->next = coro_first;
3079 coro_first = coro;
3080
3081 coro->hv = hv = newHV ();
3082 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3083 mg->mg_flags |= MGf_DUP;
3084 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3085
3086 if (argc > 0)
3087 {
3088 av_extend (coro->args, argc + is_coro - 1);
3089
3090 if (is_coro)
3091 {
3092 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3093 cb = (SV *)cv_coro_run;
3094 }
3095
3096 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3097
3098 for (i = 1; i < argc; i++)
3099 av_push (coro->args, newSVsv (argv [i]));
3100 }
3101
3102 return coro_sv;
3103}
2666 3104
2667MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3105MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2668 3106
2669PROTOTYPES: DISABLE 3107PROTOTYPES: DISABLE
2670 3108
… …
2675 coro_thx = PERL_GET_CONTEXT; 3113 coro_thx = PERL_GET_CONTEXT;
2676# endif 3114# endif
2677#endif 3115#endif
2678 BOOT_PAGESIZE; 3116 BOOT_PAGESIZE;
2679 3117
3118 cctx_current = cctx_new_empty ();
3119
2680 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3120 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2681 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3121 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2682 3122
2683 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3123 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2684 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3124 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2703 3143
2704 { 3144 {
2705 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3145 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2706 3146
2707 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3147 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2708 hv_store_ent (PL_custom_op_names, slf, 3148 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2709 newSVpv ("coro_slf", 0), 0);
2710 3149
2711 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3150 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2712 hv_store_ent (PL_custom_op_descs, slf, 3151 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2713 newSVpv ("coro schedule like function", 0), 0);
2714 } 3152 }
2715 3153
2716 coroapi.ver = CORO_API_VERSION; 3154 coroapi.ver = CORO_API_VERSION;
2717 coroapi.rev = CORO_API_REVISION; 3155 coroapi.rev = CORO_API_REVISION;
2718 3156
… …
2723 coroapi.prepare_nop = prepare_nop; 3161 coroapi.prepare_nop = prepare_nop;
2724 coroapi.prepare_schedule = prepare_schedule; 3162 coroapi.prepare_schedule = prepare_schedule;
2725 coroapi.prepare_cede = prepare_cede; 3163 coroapi.prepare_cede = prepare_cede;
2726 coroapi.prepare_cede_notself = prepare_cede_notself; 3164 coroapi.prepare_cede_notself = prepare_cede_notself;
2727 3165
2728 { 3166 time_init ();
2729 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2730 3167
2731 if (!svp) croak ("Time::HiRes is required");
2732 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2733
2734 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2735 }
2736
2737 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3168 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2738} 3169}
2739 3170
2740SV * 3171SV *
2741new (char *klass, ...) 3172new (SV *klass, ...)
2742 ALIAS: 3173 ALIAS:
2743 Coro::new = 1 3174 Coro::new = 1
2744 CODE: 3175 CODE:
2745{ 3176 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2746 struct coro *coro; 3177 OUTPUT:
2747 MAGIC *mg;
2748 HV *hv;
2749 CV *cb;
2750 int i;
2751
2752 if (items > 1)
2753 {
2754 cb = coro_sv_2cv (aTHX_ ST (1));
2755
2756 if (!ix)
2757 {
2758 if (CvISXSUB (cb))
2759 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2760
2761 if (!CvROOT (cb))
2762 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2763 }
2764 }
2765
2766 Newz (0, coro, 1, struct coro);
2767 coro->args = newAV ();
2768 coro->flags = CF_NEW;
2769
2770 if (coro_first) coro_first->prev = coro;
2771 coro->next = coro_first;
2772 coro_first = coro;
2773
2774 coro->hv = hv = newHV ();
2775 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2776 mg->mg_flags |= MGf_DUP;
2777 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2778
2779 if (items > 1)
2780 {
2781 av_extend (coro->args, items - 1 + ix - 1);
2782
2783 if (ix)
2784 {
2785 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2786 cb = cv_coro_run;
2787 }
2788
2789 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2790
2791 for (i = 2; i < items; i++)
2792 av_push (coro->args, newSVsv (ST (i)));
2793 }
2794}
2795 OUTPUT:
2796 RETVAL 3178 RETVAL
2797 3179
2798void 3180void
2799transfer (...) 3181transfer (...)
2800 PROTOTYPE: $$ 3182 PROTOTYPE: $$
… …
2811void 3193void
2812_exit (int code) 3194_exit (int code)
2813 PROTOTYPE: $ 3195 PROTOTYPE: $
2814 CODE: 3196 CODE:
2815 _exit (code); 3197 _exit (code);
3198
3199SV *
3200clone (Coro::State coro)
3201 CODE:
3202{
3203#if CORO_CLONE
3204 struct coro *ncoro = coro_clone (aTHX_ coro);
3205 MAGIC *mg;
3206 /* TODO: too much duplication */
3207 ncoro->hv = newHV ();
3208 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3209 mg->mg_flags |= MGf_DUP;
3210 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3211#else
3212 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3213#endif
3214}
3215 OUTPUT:
3216 RETVAL
2816 3217
2817int 3218int
2818cctx_stacksize (int new_stacksize = 0) 3219cctx_stacksize (int new_stacksize = 0)
2819 PROTOTYPE: ;$ 3220 PROTOTYPE: ;$
2820 CODE: 3221 CODE:
… …
2870 eval = 1 3271 eval = 1
2871 CODE: 3272 CODE:
2872{ 3273{
2873 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3274 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2874 { 3275 {
2875 struct coro temp; 3276 struct coro *current = SvSTATE_current;
2876 3277
2877 if (!(coro->flags & CF_RUNNING)) 3278 if (current != coro)
2878 { 3279 {
2879 PUTBACK; 3280 PUTBACK;
2880 save_perl (aTHX_ &temp); 3281 save_perl (aTHX_ current);
2881 load_perl (aTHX_ coro); 3282 load_perl (aTHX_ coro);
3283 SPAGAIN;
2882 } 3284 }
2883 3285
2884 {
2885 dSP;
2886 ENTER;
2887 SAVETMPS;
2888 PUTBACK;
2889 PUSHSTACK; 3286 PUSHSTACK;
3287
2890 PUSHMARK (SP); 3288 PUSHMARK (SP);
3289 PUTBACK;
2891 3290
2892 if (ix) 3291 if (ix)
2893 eval_sv (coderef, 0); 3292 eval_sv (coderef, 0);
2894 else 3293 else
2895 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3294 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2896 3295
2897 POPSTACK; 3296 POPSTACK;
2898 SPAGAIN; 3297 SPAGAIN;
2899 FREETMPS;
2900 LEAVE;
2901 PUTBACK;
2902 }
2903 3298
2904 if (!(coro->flags & CF_RUNNING)) 3299 if (current != coro)
2905 { 3300 {
3301 PUTBACK;
2906 save_perl (aTHX_ coro); 3302 save_perl (aTHX_ coro);
2907 load_perl (aTHX_ &temp); 3303 load_perl (aTHX_ current);
2908 SPAGAIN; 3304 SPAGAIN;
2909 } 3305 }
2910 } 3306 }
2911} 3307}
2912 3308
… …
2916 ALIAS: 3312 ALIAS:
2917 is_ready = CF_READY 3313 is_ready = CF_READY
2918 is_running = CF_RUNNING 3314 is_running = CF_RUNNING
2919 is_new = CF_NEW 3315 is_new = CF_NEW
2920 is_destroyed = CF_DESTROYED 3316 is_destroyed = CF_DESTROYED
3317 is_suspended = CF_SUSPENDED
2921 CODE: 3318 CODE:
2922 RETVAL = boolSV (coro->flags & ix); 3319 RETVAL = boolSV (coro->flags & ix);
2923 OUTPUT: 3320 OUTPUT:
2924 RETVAL 3321 RETVAL
2925 3322
2926void 3323void
2927throw (Coro::State self, SV *throw = &PL_sv_undef) 3324throw (Coro::State self, SV *exception = &PL_sv_undef)
2928 PROTOTYPE: $;$ 3325 PROTOTYPE: $;$
2929 CODE: 3326 CODE:
2930{ 3327{
2931 struct coro *current = SvSTATE_current; 3328 struct coro *current = SvSTATE_current;
2932 SV **throwp = self == current ? &CORO_THROW : &self->except; 3329 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2933 SvREFCNT_dec (*throwp); 3330 SvREFCNT_dec (*exceptionp);
2934 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3331 SvGETMAGIC (exception);
3332 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2935} 3333}
2936 3334
2937void 3335void
2938api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3336api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2939 PROTOTYPE: $;$ 3337 PROTOTYPE: $;$
… …
2941 3339
2942SV * 3340SV *
2943has_cctx (Coro::State coro) 3341has_cctx (Coro::State coro)
2944 PROTOTYPE: $ 3342 PROTOTYPE: $
2945 CODE: 3343 CODE:
2946 RETVAL = boolSV (!!coro->cctx); 3344 /* maybe manage the running flag differently */
3345 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2947 OUTPUT: 3346 OUTPUT:
2948 RETVAL 3347 RETVAL
2949 3348
2950int 3349int
2951is_traced (Coro::State coro) 3350is_traced (Coro::State coro)
… …
2971 3370
2972void 3371void
2973force_cctx () 3372force_cctx ()
2974 PROTOTYPE: 3373 PROTOTYPE:
2975 CODE: 3374 CODE:
2976 SvSTATE_current->cctx->idle_sp = 0; 3375 cctx_current->idle_sp = 0;
2977 3376
2978void 3377void
2979swap_defsv (Coro::State self) 3378swap_defsv (Coro::State self)
2980 PROTOTYPE: $ 3379 PROTOTYPE: $
2981 ALIAS: 3380 ALIAS:
… …
2989 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3388 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2990 3389
2991 SV *tmp = *src; *src = *dst; *dst = tmp; 3390 SV *tmp = *src; *src = *dst; *dst = tmp;
2992 } 3391 }
2993 3392
3393void
3394cancel (Coro::State self)
3395 CODE:
3396 coro_state_destroy (aTHX_ self);
3397 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3398
3399
3400SV *
3401enable_times (int enabled = enable_times)
3402 CODE:
3403{
3404 RETVAL = boolSV (enable_times);
3405
3406 if (enabled != enable_times)
3407 {
3408 enable_times = enabled;
3409
3410 coro_times_update ();
3411 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3412 }
3413}
3414 OUTPUT:
3415 RETVAL
3416
3417void
3418times (Coro::State self)
3419 PPCODE:
3420{
3421 struct coro *current = SvSTATE (coro_current);
3422
3423 if (expect_false (current == self))
3424 {
3425 coro_times_update ();
3426 coro_times_add (SvSTATE (coro_current));
3427 }
3428
3429 EXTEND (SP, 2);
3430 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3431 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3432
3433 if (expect_false (current == self))
3434 coro_times_sub (SvSTATE (coro_current));
3435}
3436
3437void
3438swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3439 CODE:
3440{
3441 struct coro *current = SvSTATE_current;
3442
3443 if (current == coro)
3444 SWAP_SVS (current);
3445
3446 if (!coro->swap_sv)
3447 coro->swap_sv = newAV ();
3448
3449 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3450 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3451
3452 if (current == coro)
3453 SWAP_SVS (current);
3454}
3455
2994 3456
2995MODULE = Coro::State PACKAGE = Coro 3457MODULE = Coro::State PACKAGE = Coro
2996 3458
2997BOOT: 3459BOOT:
2998{ 3460{
2999 int i;
3000
3001 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3002 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3461 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3003 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3462 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3004 cv_coro_run = get_cv ( "Coro::_terminate", GV_ADD); 3463 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3005 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3464 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3006 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3465 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3466 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3467 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3468 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3469 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3007 3470
3008 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3471 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3009 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3472 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3010 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3473 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3011 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3474 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3012 3475
3013 coro_stash = gv_stashpv ("Coro", TRUE); 3476 coro_stash = gv_stashpv ("Coro", TRUE);
3014 3477
3015 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3478 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3016 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3479 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3017 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3480 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3018 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3481 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3019 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3482 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3020 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3483 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3021
3022 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3023 coro_ready[i] = newAV ();
3024 3484
3025 { 3485 {
3026 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3486 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3027 3487
3028 coroapi.schedule = api_schedule; 3488 coroapi.schedule = api_schedule;
… …
3038 sv_setiv (sv, (IV)&coroapi); 3498 sv_setiv (sv, (IV)&coroapi);
3039 SvREADONLY_on (sv); 3499 SvREADONLY_on (sv);
3040 } 3500 }
3041} 3501}
3042 3502
3503SV *
3504async (...)
3505 PROTOTYPE: &@
3506 CODE:
3507 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3508 api_ready (aTHX_ RETVAL);
3509 OUTPUT:
3510 RETVAL
3511
3512void
3513terminate (...)
3514 CODE:
3515 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3516
3043void 3517void
3044schedule (...) 3518schedule (...)
3045 CODE: 3519 CODE:
3046 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3520 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3047 3521
… …
3075void 3549void
3076_set_readyhook (SV *hook) 3550_set_readyhook (SV *hook)
3077 PROTOTYPE: $ 3551 PROTOTYPE: $
3078 CODE: 3552 CODE:
3079 SvREFCNT_dec (coro_readyhook); 3553 SvREFCNT_dec (coro_readyhook);
3554 SvGETMAGIC (hook);
3555 if (SvOK (hook))
3556 {
3080 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3557 coro_readyhook = newSVsv (hook);
3558 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3559 }
3560 else
3561 {
3562 coro_readyhook = 0;
3563 CORO_READYHOOK = 0;
3564 }
3081 3565
3082int 3566int
3083prio (Coro::State coro, int newprio = 0) 3567prio (Coro::State coro, int newprio = 0)
3084 PROTOTYPE: $;$ 3568 PROTOTYPE: $;$
3085 ALIAS: 3569 ALIAS:
… …
3091 if (items > 1) 3575 if (items > 1)
3092 { 3576 {
3093 if (ix) 3577 if (ix)
3094 newprio = coro->prio - newprio; 3578 newprio = coro->prio - newprio;
3095 3579
3096 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3580 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3097 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3581 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3098 3582
3099 coro->prio = newprio; 3583 coro->prio = newprio;
3100 } 3584 }
3101} 3585}
3102 OUTPUT: 3586 OUTPUT:
… …
3117 RETVAL = coro_nready; 3601 RETVAL = coro_nready;
3118 OUTPUT: 3602 OUTPUT:
3119 RETVAL 3603 RETVAL
3120 3604
3121void 3605void
3606suspend (Coro::State self)
3607 PROTOTYPE: $
3608 CODE:
3609 self->flags |= CF_SUSPENDED;
3610
3611void
3612resume (Coro::State self)
3613 PROTOTYPE: $
3614 CODE:
3615 self->flags &= ~CF_SUSPENDED;
3616
3617void
3122_pool_handler (...) 3618_pool_handler (...)
3123 CODE: 3619 CODE:
3124 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3620 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3125 3621
3126void 3622void
… …
3137 for (i = 1; i < items; ++i) 3633 for (i = 1; i < items; ++i)
3138 av_push (av, SvREFCNT_inc_NN (ST (i))); 3634 av_push (av, SvREFCNT_inc_NN (ST (i)));
3139 3635
3140 if ((SV *)hv == &PL_sv_undef) 3636 if ((SV *)hv == &PL_sv_undef)
3141 { 3637 {
3142 PUSHMARK (SP); 3638 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3143 EXTEND (SP, 2);
3144 PUSHs (sv_Coro);
3145 PUSHs ((SV *)cv_pool_handler);
3146 PUTBACK;
3147 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3148 SPAGAIN;
3149
3150 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3639 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3640 SvREFCNT_dec (sv);
3151 } 3641 }
3152 3642
3153 { 3643 {
3154 struct coro *coro = SvSTATE_hv (hv); 3644 struct coro *coro = SvSTATE_hv (hv);
3155 3645
… …
3179rouse_wait (...) 3669rouse_wait (...)
3180 PROTOTYPE: ;$ 3670 PROTOTYPE: ;$
3181 PPCODE: 3671 PPCODE:
3182 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3672 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3183 3673
3674void
3675on_enter (SV *block)
3676 ALIAS:
3677 on_leave = 1
3678 PROTOTYPE: &
3679 CODE:
3680{
3681 struct coro *coro = SvSTATE_current;
3682 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3683
3684 block = s_get_cv_croak (block);
3685
3686 if (!*avp)
3687 *avp = newAV ();
3688
3689 av_push (*avp, SvREFCNT_inc (block));
3690
3691 if (!ix)
3692 on_enterleave_call (aTHX_ block);
3693
3694 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3695 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3696 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3697}
3698
3184 3699
3185MODULE = Coro::State PACKAGE = PerlIO::cede 3700MODULE = Coro::State PACKAGE = PerlIO::cede
3186 3701
3187BOOT: 3702BOOT:
3188 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3703 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3191MODULE = Coro::State PACKAGE = Coro::Semaphore 3706MODULE = Coro::State PACKAGE = Coro::Semaphore
3192 3707
3193SV * 3708SV *
3194new (SV *klass, SV *count = 0) 3709new (SV *klass, SV *count = 0)
3195 CODE: 3710 CODE:
3711{
3712 int semcnt = 1;
3713
3714 if (count)
3715 {
3716 SvGETMAGIC (count);
3717
3718 if (SvOK (count))
3719 semcnt = SvIV (count);
3720 }
3721
3196 RETVAL = sv_bless ( 3722 RETVAL = sv_bless (
3197 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3723 coro_waitarray_new (aTHX_ semcnt),
3198 GvSTASH (CvGV (cv)) 3724 GvSTASH (CvGV (cv))
3199 ); 3725 );
3726}
3200 OUTPUT: 3727 OUTPUT:
3201 RETVAL 3728 RETVAL
3202 3729
3203# helper for Coro::Channel 3730# helper for Coro::Channel and others
3204SV * 3731SV *
3205_alloc (int count) 3732_alloc (int count)
3206 CODE: 3733 CODE:
3207 RETVAL = coro_waitarray_new (aTHX_ count); 3734 RETVAL = coro_waitarray_new (aTHX_ count);
3208 OUTPUT: 3735 OUTPUT:
… …
3266 for (i = 1; i <= wcount; ++i) 3793 for (i = 1; i <= wcount; ++i)
3267 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3794 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3268 } 3795 }
3269} 3796}
3270 3797
3798MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3799
3800void
3801_may_delete (SV *sem, int count, int extra_refs)
3802 PPCODE:
3803{
3804 AV *av = (AV *)SvRV (sem);
3805
3806 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3807 && AvFILLp (av) == 0 /* no waiters, just count */
3808 && SvIV (AvARRAY (av)[0]) == count)
3809 XSRETURN_YES;
3810
3811 XSRETURN_NO;
3812}
3813
3271MODULE = Coro::State PACKAGE = Coro::Signal 3814MODULE = Coro::State PACKAGE = Coro::Signal
3272 3815
3273SV * 3816SV *
3274new (SV *klass) 3817new (SV *klass)
3275 CODE: 3818 CODE:
… …
3346 3889
3347void 3890void
3348_register (char *target, char *proto, SV *req) 3891_register (char *target, char *proto, SV *req)
3349 CODE: 3892 CODE:
3350{ 3893{
3351 CV *req_cv = coro_sv_2cv (aTHX_ req); 3894 SV *req_cv = s_get_cv_croak (req);
3352 /* newXSproto doesn't return the CV on 5.8 */ 3895 /* newXSproto doesn't return the CV on 5.8 */
3353 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3896 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3354 sv_setpv ((SV *)slf_cv, proto); 3897 sv_setpv ((SV *)slf_cv, proto);
3355 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3898 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3356} 3899}
3357 3900
3901MODULE = Coro::State PACKAGE = Coro::Select
3902
3903void
3904patch_pp_sselect ()
3905 CODE:
3906 if (!coro_old_pp_sselect)
3907 {
3908 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3909 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3910 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3911 }
3912
3913void
3914unpatch_pp_sselect ()
3915 CODE:
3916 if (coro_old_pp_sselect)
3917 {
3918 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3919 coro_old_pp_sselect = 0;
3920 }
3921

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