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Comparing Coro/Coro/State.xs (file contents):
Revision 1.361 by root, Wed Jul 1 07:26:40 2009 UTC vs.
Revision 1.404 by root, Fri Jun 10 12:27:02 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"
17#include "ecb.h"
12 18
19#include <stddef.h>
13#include <stdio.h> 20#include <stdio.h>
14#include <errno.h> 21#include <errno.h>
15#include <assert.h> 22#include <assert.h>
16 23
17#ifdef WIN32 24#ifndef SVs_PADSTALE
25# define SVs_PADSTALE 0
26#endif
27
28#if defined(_WIN32)
29# undef HAS_GETTIMEOFDAY
18# undef setjmp 30# undef setjmp
19# undef longjmp 31# undef longjmp
20# undef _exit 32# undef _exit
21# define setjmp _setjmp /* deep magic */ 33# define setjmp _setjmp /* deep magic */
22#else 34#else
… …
51#endif 63#endif
52 64
53/* the maximum number of idle cctx that will be pooled */ 65/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 66static int cctx_max_idle = 4;
55 67
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 68#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 69# undef CORO_STACKGUARD
117#endif 70#endif
118 71
119#ifndef CORO_STACKGUARD 72#ifndef CORO_STACKGUARD
… …
135# define STACKLEVEL ((void *)&stacklevel) 88# define STACKLEVEL ((void *)&stacklevel)
136#endif 89#endif
137 90
138#define IN_DESTRUCT PL_dirty 91#define IN_DESTRUCT PL_dirty
139 92
140#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline
144#else
145# define attribute(x)
146# define expect(expr,value) (expr)
147# define INLINE static
148#endif
149
150#define expect_false(expr) expect ((expr) != 0, 0)
151#define expect_true(expr) expect ((expr) != 0, 1)
152
153#define NOINLINE attribute ((noinline))
154
155#include "CoroAPI.h" 93#include "CoroAPI.h"
156#define GCoroAPI (&coroapi) /* very sneaky */ 94#define GCoroAPI (&coroapi) /* very sneaky */
157 95
158#ifdef USE_ITHREADS 96#ifdef USE_ITHREADS
159# if CORO_PTHREAD 97# if CORO_PTHREAD
… …
175static void (*u2time)(pTHX_ UV ret[2]); 113static void (*u2time)(pTHX_ UV ret[2]);
176 114
177/* we hijack an hopefully unused CV flag for our purposes */ 115/* we hijack an hopefully unused CV flag for our purposes */
178#define CVf_SLF 0x4000 116#define CVf_SLF 0x4000
179static OP *pp_slf (pTHX); 117static OP *pp_slf (pTHX);
118static void slf_destroy (pTHX_ struct coro *coro);
180 119
181static U32 cctx_gen; 120static U32 cctx_gen;
182static size_t cctx_stacksize = CORO_STACKSIZE; 121static size_t cctx_stacksize = CORO_STACKSIZE;
183static struct CoroAPI coroapi; 122static struct CoroAPI coroapi;
184static AV *main_mainstack; /* used to differentiate between $main and others */ 123static AV *main_mainstack; /* used to differentiate between $main and others */
… …
201static SV *sv_pool_size; 140static SV *sv_pool_size;
202static SV *sv_async_pool_idle; /* description string */ 141static SV *sv_async_pool_idle; /* description string */
203static AV *av_async_pool; /* idle pool */ 142static AV *av_async_pool; /* idle pool */
204static SV *sv_Coro; /* class string */ 143static SV *sv_Coro; /* class string */
205static CV *cv_pool_handler; 144static CV *cv_pool_handler;
206static CV *cv_coro_state_new;
207 145
208/* Coro::AnyEvent */ 146/* Coro::AnyEvent */
209static SV *sv_activity; 147static SV *sv_activity;
210 148
211/* enable processtime/realtime profiling */ 149/* enable processtime/realtime profiling */
… …
215static char times_valid; 153static char times_valid;
216 154
217static struct coro_cctx *cctx_first; 155static struct coro_cctx *cctx_first;
218static int cctx_count, cctx_idle; 156static int cctx_count, cctx_idle;
219 157
220enum { 158enum
159{
221 CC_MAPPED = 0x01, 160 CC_MAPPED = 0x01,
222 CC_NOREUSE = 0x02, /* throw this away after tracing */ 161 CC_NOREUSE = 0x02, /* throw this away after tracing */
223 CC_TRACE = 0x04, 162 CC_TRACE = 0x04,
224 CC_TRACE_SUB = 0x08, /* trace sub calls */ 163 CC_TRACE_SUB = 0x08, /* trace sub calls */
225 CC_TRACE_LINE = 0x10, /* trace each statement */ 164 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
246 int valgrind_id; 185 int valgrind_id;
247#endif 186#endif
248 unsigned char flags; 187 unsigned char flags;
249} coro_cctx; 188} coro_cctx;
250 189
251coro_cctx *cctx_current; /* the currently running cctx */ 190static coro_cctx *cctx_current; /* the currently running cctx */
252 191
253/*****************************************************************************/ 192/*****************************************************************************/
254 193
194static MGVTBL coro_state_vtbl;
195
255enum { 196enum
197{
256 CF_RUNNING = 0x0001, /* coroutine is running */ 198 CF_RUNNING = 0x0001, /* coroutine is running */
257 CF_READY = 0x0002, /* coroutine is ready */ 199 CF_READY = 0x0002, /* coroutine is ready */
258 CF_NEW = 0x0004, /* has never been switched to */ 200 CF_NEW = 0x0004, /* has never been switched to */
259 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 201 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
260 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 202 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
203 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
261}; 204};
262 205
263/* the structure where most of the perl state is stored, overlaid on the cxstack */ 206/* the structure where most of the perl state is stored, overlaid on the cxstack */
264typedef struct 207typedef struct
265{ 208{
… …
271#define VAR(name,type) type name; 214#define VAR(name,type) type name;
272# include "state.h" 215# include "state.h"
273#undef VAR 216#undef VAR
274} perl_slots; 217} perl_slots;
275 218
219// how many context stack entries do we need for perl_slots
276#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 220#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
277 221
278/* this is a structure representing a perl-level coroutine */ 222/* this is a structure representing a perl-level coroutine */
279struct coro { 223struct coro
224{
280 /* the C coroutine allocated to this perl coroutine, if any */ 225 /* the C coroutine allocated to this perl coroutine, if any */
281 coro_cctx *cctx; 226 coro_cctx *cctx;
282 227
283 /* ready queue */ 228 /* ready queue */
284 struct coro *next_ready; 229 struct coro *next_ready;
… …
286 /* state data */ 231 /* state data */
287 struct CoroSLF slf_frame; /* saved slf frame */ 232 struct CoroSLF slf_frame; /* saved slf frame */
288 AV *mainstack; 233 AV *mainstack;
289 perl_slots *slot; /* basically the saved sp */ 234 perl_slots *slot; /* basically the saved sp */
290 235
291 CV *startcv; /* the CV to execute */ 236 CV *startcv; /* the CV to execute */
292 AV *args; /* data associated with this coroutine (initial args) */ 237 AV *args; /* data associated with this coroutine (initial args) */
293 int refcnt; /* coroutines are refcounted, yes */
294 int flags; /* CF_ flags */ 238 int flags; /* CF_ flags */
295 HV *hv; /* the perl hash associated with this coro, if any */ 239 HV *hv; /* the perl hash associated with this coro, if any */
296 void (*on_destroy)(pTHX_ struct coro *coro);
297 240
298 /* statistics */ 241 /* statistics */
299 int usecount; /* number of transfers to this coro */ 242 int usecount; /* number of transfers to this coro */
300 243
301 /* coro process data */ 244 /* coro process data */
302 int prio; 245 int prio;
303 SV *except; /* exception to be thrown */ 246 SV *except; /* exception to be thrown */
304 SV *rouse_cb; 247 SV *rouse_cb; /* last rouse callback */
248 AV *on_destroy; /* callbacks or coros to notify on destroy */
249 AV *status; /* the exit status list */
305 250
306 /* async_pool */ 251 /* async_pool */
307 SV *saved_deffh; 252 SV *saved_deffh;
308 SV *invoke_cb; 253 SV *invoke_cb;
309 AV *invoke_av; 254 AV *invoke_av;
310 255
311 /* on_enter/on_leave */ 256 /* on_enter/on_leave */
312 AV *on_enter; 257 AV *on_enter;
313 AV *on_leave; 258 AV *on_leave;
314 259
260 /* swap_sv */
261 AV *swap_sv;
262
315 /* times */ 263 /* times */
316 coro_ts t_cpu, t_real; 264 coro_ts t_cpu, t_real;
317 265
318 /* linked list */ 266 /* linked list */
319 struct coro *next, *prev; 267 struct coro *next, *prev;
… …
322typedef struct coro *Coro__State; 270typedef struct coro *Coro__State;
323typedef struct coro *Coro__State_or_hashref; 271typedef struct coro *Coro__State_or_hashref;
324 272
325/* the following variables are effectively part of the perl context */ 273/* the following variables are effectively part of the perl context */
326/* and get copied between struct coro and these variables */ 274/* and get copied between struct coro and these variables */
327/* the mainr easonw e don't support windows process emulation */ 275/* the main reason we don't support windows process emulation */
328static struct CoroSLF slf_frame; /* the current slf frame */ 276static struct CoroSLF slf_frame; /* the current slf frame */
329 277
330/** Coro ********************************************************************/ 278/** Coro ********************************************************************/
331 279
332#define CORO_PRIO_MAX 3 280#define CORO_PRIO_MAX 3
… …
338 286
339/* for Coro.pm */ 287/* for Coro.pm */
340static SV *coro_current; 288static SV *coro_current;
341static SV *coro_readyhook; 289static SV *coro_readyhook;
342static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 290static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
343static CV *cv_coro_run, *cv_coro_terminate; 291static CV *cv_coro_run;
344static struct coro *coro_first; 292static struct coro *coro_first;
345#define coro_nready coroapi.nready 293#define coro_nready coroapi.nready
346 294
295/** Coro::Select ************************************************************/
296
297static OP *(*coro_old_pp_sselect) (pTHX);
298static SV *coro_select_select;
299
300/* horrible hack, but if it works... */
301static OP *
302coro_pp_sselect (pTHX)
303{
304 dSP;
305 PUSHMARK (SP - 4); /* fake argument list */
306 XPUSHs (coro_select_select);
307 PUTBACK;
308
309 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
310 PL_op->op_flags |= OPf_STACKED;
311 PL_op->op_private = 0;
312 return PL_ppaddr [OP_ENTERSUB](aTHX);
313}
314
315/** time stuff **************************************************************/
316
317#ifdef HAS_GETTIMEOFDAY
318
319ECB_INLINE void
320coro_u2time (pTHX_ UV ret[2])
321{
322 struct timeval tv;
323 gettimeofday (&tv, 0);
324
325 ret [0] = tv.tv_sec;
326 ret [1] = tv.tv_usec;
327}
328
329ECB_INLINE double
330coro_nvtime ()
331{
332 struct timeval tv;
333 gettimeofday (&tv, 0);
334
335 return tv.tv_sec + tv.tv_usec * 1e-6;
336}
337
338ECB_INLINE void
339time_init (pTHX)
340{
341 nvtime = coro_nvtime;
342 u2time = coro_u2time;
343}
344
345#else
346
347ECB_INLINE void
348time_init (pTHX)
349{
350 SV **svp;
351
352 require_pv ("Time/HiRes.pm");
353
354 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
355
356 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
357 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
358
359 nvtime = INT2PTR (double (*)(), SvIV (*svp));
360
361 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
362 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
363}
364
365#endif
366
347/** lowlevel stuff **********************************************************/ 367/** lowlevel stuff **********************************************************/
348 368
349static SV * 369static SV * ecb_noinline
350coro_get_sv (pTHX_ const char *name, int create) 370coro_get_sv (pTHX_ const char *name, int create)
351{ 371{
352#if PERL_VERSION_ATLEAST (5,10,0) 372#if PERL_VERSION_ATLEAST (5,10,0)
353 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 373 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
354 get_sv (name, create); 374 get_sv (name, create);
355#endif 375#endif
356 return get_sv (name, create); 376 return get_sv (name, create);
357} 377}
358 378
359static AV * 379static AV * ecb_noinline
360coro_get_av (pTHX_ const char *name, int create) 380coro_get_av (pTHX_ const char *name, int create)
361{ 381{
362#if PERL_VERSION_ATLEAST (5,10,0) 382#if PERL_VERSION_ATLEAST (5,10,0)
363 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 383 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
364 get_av (name, create); 384 get_av (name, create);
365#endif 385#endif
366 return get_av (name, create); 386 return get_av (name, create);
367} 387}
368 388
369static HV * 389static HV * ecb_noinline
370coro_get_hv (pTHX_ const char *name, int create) 390coro_get_hv (pTHX_ const char *name, int create)
371{ 391{
372#if PERL_VERSION_ATLEAST (5,10,0) 392#if PERL_VERSION_ATLEAST (5,10,0)
373 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 393 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
374 get_hv (name, create); 394 get_hv (name, create);
375#endif 395#endif
376 return get_hv (name, create); 396 return get_hv (name, create);
377} 397}
378 398
379/* may croak */
380INLINE CV *
381coro_sv_2cv (pTHX_ SV *sv)
382{
383 HV *st;
384 GV *gvp;
385 CV *cv = sv_2cv (sv, &st, &gvp, 0);
386
387 if (!cv)
388 croak ("code reference expected");
389
390 return cv;
391}
392
393INLINE void 399ECB_INLINE void
394coro_times_update () 400coro_times_update ()
395{ 401{
396#ifdef coro_clock_gettime 402#ifdef coro_clock_gettime
397 struct timespec ts; 403 struct timespec ts;
398 404
… …
405 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; 411 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
406#else 412#else
407 dTHX; 413 dTHX;
408 UV tv[2]; 414 UV tv[2];
409 415
410 u2time (aTHX_ &tv); 416 u2time (aTHX_ tv);
411 time_real [0] = tv [0]; 417 time_real [0] = tv [0];
412 time_real [1] = tv [1] * 1000; 418 time_real [1] = tv [1] * 1000;
413#endif 419#endif
414} 420}
415 421
416INLINE void 422ECB_INLINE void
417coro_times_add (struct coro *c) 423coro_times_add (struct coro *c)
418{ 424{
419 c->t_real [1] += time_real [1]; 425 c->t_real [1] += time_real [1];
420 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } 426 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
421 c->t_real [0] += time_real [0]; 427 c->t_real [0] += time_real [0];
… …
423 c->t_cpu [1] += time_cpu [1]; 429 c->t_cpu [1] += time_cpu [1];
424 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } 430 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
425 c->t_cpu [0] += time_cpu [0]; 431 c->t_cpu [0] += time_cpu [0];
426} 432}
427 433
428INLINE void 434ECB_INLINE void
429coro_times_sub (struct coro *c) 435coro_times_sub (struct coro *c)
430{ 436{
431 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } 437 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
432 c->t_real [1] -= time_real [1]; 438 c->t_real [1] -= time_real [1];
433 c->t_real [0] -= time_real [0]; 439 c->t_real [0] -= time_real [0];
… …
441/* magic glue */ 447/* magic glue */
442 448
443#define CORO_MAGIC_type_cv 26 449#define CORO_MAGIC_type_cv 26
444#define CORO_MAGIC_type_state PERL_MAGIC_ext 450#define CORO_MAGIC_type_state PERL_MAGIC_ext
445 451
446#define CORO_MAGIC_NN(sv, type) \ 452#define CORO_MAGIC_NN(sv, type) \
447 (expect_true (SvMAGIC (sv)->mg_type == type) \ 453 (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \
448 ? SvMAGIC (sv) \ 454 ? SvMAGIC (sv) \
449 : mg_find (sv, type)) 455 : mg_find (sv, type))
450 456
451#define CORO_MAGIC(sv, type) \ 457#define CORO_MAGIC(sv, type) \
452 (expect_true (SvMAGIC (sv)) \ 458 (ecb_expect_true (SvMAGIC (sv)) \
453 ? CORO_MAGIC_NN (sv, type) \ 459 ? CORO_MAGIC_NN (sv, type) \
454 : 0) 460 : 0)
455 461
456#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 462#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
457#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 463#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
458 464
465ECB_INLINE MAGIC *
466SvSTATEhv_p (pTHX_ SV *coro)
467{
468 MAGIC *mg;
469
470 if (ecb_expect_true (
471 SvTYPE (coro) == SVt_PVHV
472 && (mg = CORO_MAGIC_state (coro))
473 && mg->mg_virtual == &coro_state_vtbl
474 ))
475 return mg;
476
477 return 0;
478}
479
459INLINE struct coro * 480ECB_INLINE struct coro *
460SvSTATE_ (pTHX_ SV *coro) 481SvSTATE_ (pTHX_ SV *coro)
461{ 482{
462 HV *stash;
463 MAGIC *mg; 483 MAGIC *mg;
464 484
465 if (SvROK (coro)) 485 if (SvROK (coro))
466 coro = SvRV (coro); 486 coro = SvRV (coro);
467 487
468 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 488 mg = SvSTATEhv_p (aTHX_ coro);
489 if (!mg)
469 croak ("Coro::State object required"); 490 croak ("Coro::State object required");
470 491
471 stash = SvSTASH (coro);
472 if (expect_false (stash != coro_stash && stash != coro_state_stash))
473 {
474 /* very slow, but rare, check */
475 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
476 croak ("Coro::State object required");
477 }
478
479 mg = CORO_MAGIC_state (coro);
480 return (struct coro *)mg->mg_ptr; 492 return (struct coro *)mg->mg_ptr;
481} 493}
482 494
483#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 495#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
484 496
… …
487#define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) 499#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
488 500
489/*****************************************************************************/ 501/*****************************************************************************/
490/* padlist management and caching */ 502/* padlist management and caching */
491 503
492static AV * 504ECB_INLINE AV *
493coro_derive_padlist (pTHX_ CV *cv) 505coro_derive_padlist (pTHX_ CV *cv)
494{ 506{
495 AV *padlist = CvPADLIST (cv); 507 AV *padlist = CvPADLIST (cv);
496 AV *newpadlist, *newpad; 508 AV *newpadlist, *newpad;
497 509
… …
509 av_store (newpadlist, 1, (SV *)newpad); 521 av_store (newpadlist, 1, (SV *)newpad);
510 522
511 return newpadlist; 523 return newpadlist;
512} 524}
513 525
514static void 526ECB_INLINE void
515free_padlist (pTHX_ AV *padlist) 527free_padlist (pTHX_ AV *padlist)
516{ 528{
517 /* may be during global destruction */ 529 /* may be during global destruction */
518 if (!IN_DESTRUCT) 530 if (!IN_DESTRUCT)
519 { 531 {
… …
545 AV *padlist; 557 AV *padlist;
546 AV *av = (AV *)mg->mg_obj; 558 AV *av = (AV *)mg->mg_obj;
547 559
548 /* perl manages to free our internal AV and _then_ call us */ 560 /* perl manages to free our internal AV and _then_ call us */
549 if (IN_DESTRUCT) 561 if (IN_DESTRUCT)
550 return; 562 return 0;
551 563
552 /* casting is fun. */ 564 /* casting is fun. */
553 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 565 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
554 free_padlist (aTHX_ padlist); 566 free_padlist (aTHX_ padlist);
555 567
… …
562 0, 0, 0, 0, 574 0, 0, 0, 0,
563 coro_cv_free 575 coro_cv_free
564}; 576};
565 577
566/* the next two functions merely cache the padlists */ 578/* the next two functions merely cache the padlists */
567static void 579ECB_INLINE void
568get_padlist (pTHX_ CV *cv) 580get_padlist (pTHX_ CV *cv)
569{ 581{
570 MAGIC *mg = CORO_MAGIC_cv (cv); 582 MAGIC *mg = CORO_MAGIC_cv (cv);
571 AV *av; 583 AV *av;
572 584
573 if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) 585 if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0))
574 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; 586 CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--];
575 else 587 else
576 { 588 {
577#if CORO_PREFER_PERL_FUNCTIONS 589#if CORO_PREFER_PERL_FUNCTIONS
578 /* this is probably cleaner? but also slower! */ 590 /* this is probably cleaner? but also slower! */
… …
585 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); 597 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
586#endif 598#endif
587 } 599 }
588} 600}
589 601
590static void 602ECB_INLINE void
591put_padlist (pTHX_ CV *cv) 603put_padlist (pTHX_ CV *cv)
592{ 604{
593 MAGIC *mg = CORO_MAGIC_cv (cv); 605 MAGIC *mg = CORO_MAGIC_cv (cv);
594 AV *av; 606 AV *av;
595 607
596 if (expect_false (!mg)) 608 if (ecb_expect_false (!mg))
597 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 609 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
598 610
599 av = (AV *)mg->mg_obj; 611 av = (AV *)mg->mg_obj;
600 612
601 if (expect_false (AvFILLp (av) >= AvMAX (av))) 613 if (ecb_expect_false (AvFILLp (av) >= AvMAX (av)))
602 av_extend (av, AvFILLp (av) + 1); 614 av_extend (av, AvFILLp (av) + 1);
603 615
604 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 616 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
605} 617}
606 618
607/** load & save, init *******************************************************/ 619/** load & save, init *******************************************************/
620
621/* swap sv heads, at least logically */
622static void
623swap_svs (pTHX_ Coro__State c)
624{
625 int i;
626
627 for (i = 0; i <= AvFILLp (c->swap_sv); )
628 {
629 SV *a = AvARRAY (c->swap_sv)[i++];
630 SV *b = AvARRAY (c->swap_sv)[i++];
631
632 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633 SV tmp;
634
635 /* swap sv_any */
636 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638 /* swap sv_flags */
639 SvFLAGS (&tmp) = SvFLAGS (a);
640 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643#if PERL_VERSION_ATLEAST (5,10,0)
644 /* perl 5.10 complicates this _quite_ a bit, but it also is
645 * much faster, so no quarrels here. alternatively, we could
646 * sv_upgrade to avoid this.
647 */
648 {
649 /* swap sv_u */
650 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652 /* if SvANY points to the head, we need to adjust the pointers,
653 * as the pointer for a still points to b, and maybe vice versa.
654 */
655 #define svany_in_head(type) \
656 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658 if (svany_in_head (SvTYPE (a)))
659 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661 if (svany_in_head (SvTYPE (b)))
662 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663 }
664#endif
665 }
666}
667
668#define SWAP_SVS(coro) \
669 if (ecb_expect_false ((coro)->swap_sv)) \
670 swap_svs (aTHX_ (coro))
608 671
609static void 672static void
610on_enterleave_call (pTHX_ SV *cb); 673on_enterleave_call (pTHX_ SV *cb);
611 674
612static void 675static void
… …
631 dSP; 694 dSP;
632 695
633 CV *cv; 696 CV *cv;
634 697
635 /* now do the ugly restore mess */ 698 /* now do the ugly restore mess */
636 while (expect_true (cv = (CV *)POPs)) 699 while (ecb_expect_true (cv = (CV *)POPs))
637 { 700 {
638 put_padlist (aTHX_ cv); /* mark this padlist as available */ 701 put_padlist (aTHX_ cv); /* mark this padlist as available */
639 CvDEPTH (cv) = PTR2IV (POPs); 702 CvDEPTH (cv) = PTR2IV (POPs);
640 CvPADLIST (cv) = (AV *)POPs; 703 CvPADLIST (cv) = (AV *)POPs;
641 } 704 }
… …
644 } 707 }
645 708
646 slf_frame = c->slf_frame; 709 slf_frame = c->slf_frame;
647 CORO_THROW = c->except; 710 CORO_THROW = c->except;
648 711
649 if (expect_false (enable_times)) 712 if (ecb_expect_false (enable_times))
650 { 713 {
651 if (expect_false (!times_valid)) 714 if (ecb_expect_false (!times_valid))
652 coro_times_update (); 715 coro_times_update ();
653 716
654 coro_times_sub (c); 717 coro_times_sub (c);
655 } 718 }
656 719
657 if (expect_false (c->on_enter)) 720 if (ecb_expect_false (c->on_enter))
658 { 721 {
659 int i; 722 int i;
660 723
661 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 724 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
662 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 725 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
663 } 726 }
727
728 SWAP_SVS (c);
664} 729}
665 730
666static void 731static void
667save_perl (pTHX_ Coro__State c) 732save_perl (pTHX_ Coro__State c)
668{ 733{
734 SWAP_SVS (c);
735
669 if (expect_false (c->on_leave)) 736 if (ecb_expect_false (c->on_leave))
670 { 737 {
671 int i; 738 int i;
672 739
673 for (i = AvFILLp (c->on_leave); i >= 0; --i) 740 for (i = AvFILLp (c->on_leave); i >= 0; --i)
674 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 741 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
675 } 742 }
676 743
677 times_valid = 0; 744 times_valid = 0;
678 745
679 if (expect_false (enable_times)) 746 if (ecb_expect_false (enable_times))
680 { 747 {
681 coro_times_update (); times_valid = 1; 748 coro_times_update (); times_valid = 1;
682 coro_times_add (c); 749 coro_times_add (c);
683 } 750 }
684 751
… …
698 765
699 XPUSHs (Nullsv); 766 XPUSHs (Nullsv);
700 /* this loop was inspired by pp_caller */ 767 /* this loop was inspired by pp_caller */
701 for (;;) 768 for (;;)
702 { 769 {
703 while (expect_true (cxix >= 0)) 770 while (ecb_expect_true (cxix >= 0))
704 { 771 {
705 PERL_CONTEXT *cx = &ccstk[cxix--]; 772 PERL_CONTEXT *cx = &ccstk[cxix--];
706 773
707 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) 774 if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT))
708 { 775 {
709 CV *cv = cx->blk_sub.cv; 776 CV *cv = cx->blk_sub.cv;
710 777
711 if (expect_true (CvDEPTH (cv))) 778 if (ecb_expect_true (CvDEPTH (cv)))
712 { 779 {
713 EXTEND (SP, 3); 780 EXTEND (SP, 3);
714 PUSHs ((SV *)CvPADLIST (cv)); 781 PUSHs ((SV *)CvPADLIST (cv));
715 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); 782 PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv)));
716 PUSHs ((SV *)cv); 783 PUSHs ((SV *)cv);
… …
719 get_padlist (aTHX_ cv); 786 get_padlist (aTHX_ cv);
720 } 787 }
721 } 788 }
722 } 789 }
723 790
724 if (expect_true (top_si->si_type == PERLSI_MAIN)) 791 if (ecb_expect_true (top_si->si_type == PERLSI_MAIN))
725 break; 792 break;
726 793
727 top_si = top_si->si_prev; 794 top_si = top_si->si_prev;
728 ccstk = top_si->si_cxstack; 795 ccstk = top_si->si_cxstack;
729 cxix = top_si->si_cxix; 796 cxix = top_si->si_cxix;
… …
731 798
732 PUTBACK; 799 PUTBACK;
733 } 800 }
734 801
735 /* allocate some space on the context stack for our purposes */ 802 /* allocate some space on the context stack for our purposes */
736 /* we manually unroll here, as usually 2 slots is enough */ 803 if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
737 if (SLOT_COUNT >= 1) CXINC;
738 if (SLOT_COUNT >= 2) CXINC;
739 if (SLOT_COUNT >= 3) CXINC;
740 { 804 {
741 int i; 805 unsigned int i;
806
742 for (i = 3; i < SLOT_COUNT; ++i) 807 for (i = 0; i < SLOT_COUNT; ++i)
743 CXINC; 808 CXINC;
744 } 809
745 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 810 cxstack_ix -= SLOT_COUNT; /* undo allocation */
811 }
746 812
747 c->mainstack = PL_mainstack; 813 c->mainstack = PL_mainstack;
748 814
749 { 815 {
750 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 816 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
… …
771# define coro_init_stacks(thx) init_stacks () 837# define coro_init_stacks(thx) init_stacks ()
772#else 838#else
773static void 839static void
774coro_init_stacks (pTHX) 840coro_init_stacks (pTHX)
775{ 841{
776 PL_curstackinfo = new_stackinfo(32, 8); 842 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
777 PL_curstackinfo->si_type = PERLSI_MAIN; 843 PL_curstackinfo->si_type = PERLSI_MAIN;
778 PL_curstack = PL_curstackinfo->si_stack; 844 PL_curstack = PL_curstackinfo->si_stack;
779 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 845 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
780 846
781 PL_stack_base = AvARRAY(PL_curstack); 847 PL_stack_base = AvARRAY(PL_curstack);
… …
888#endif 954#endif
889 955
890/* 956/*
891 * This overrides the default magic get method of %SIG elements. 957 * This overrides the default magic get method of %SIG elements.
892 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 958 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
893 * and instead of trying to save and restore the hash elements, we just provide 959 * and instead of trying to save and restore the hash elements (extremely slow),
894 * readback here. 960 * we just provide our own readback here.
895 */ 961 */
896static int 962static int ecb_cold
897coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 963coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
898{ 964{
899 const char *s = MgPV_nolen_const (mg); 965 const char *s = MgPV_nolen_const (mg);
900 966
901 if (*s == '_') 967 if (*s == '_')
… …
913 } 979 }
914 980
915 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; 981 return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0;
916} 982}
917 983
918static int 984static int ecb_cold
919coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) 985coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg)
920{ 986{
921 const char *s = MgPV_nolen_const (mg); 987 const char *s = MgPV_nolen_const (mg);
922 988
923 if (*s == '_') 989 if (*s == '_')
… …
937 } 1003 }
938 1004
939 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; 1005 return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0;
940} 1006}
941 1007
942static int 1008static int ecb_cold
943coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) 1009coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg)
944{ 1010{
945 const char *s = MgPV_nolen_const (mg); 1011 const char *s = MgPV_nolen_const (mg);
946 1012
947 if (*s == '_') 1013 if (*s == '_')
… …
980slf_check_repeat (pTHX_ struct CoroSLF *frame) 1046slf_check_repeat (pTHX_ struct CoroSLF *frame)
981{ 1047{
982 return 1; 1048 return 1;
983} 1049}
984 1050
985static UNOP coro_setup_op; 1051static UNOP init_perl_op;
986 1052
987static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1053ecb_noinline static void /* noinline to keep it out of the transfer fast path */
988coro_setup (pTHX_ struct coro *coro) 1054init_perl (pTHX_ struct coro *coro)
989{ 1055{
990 /* 1056 /*
991 * emulate part of the perl startup here. 1057 * emulate part of the perl startup here.
992 */ 1058 */
993 coro_init_stacks (aTHX); 1059 coro_init_stacks (aTHX);
… …
1000 PL_comppad_name_fill = 0; 1066 PL_comppad_name_fill = 0;
1001 PL_comppad_name_floor = 0; 1067 PL_comppad_name_floor = 0;
1002 PL_curpm = 0; 1068 PL_curpm = 0;
1003 PL_curpad = 0; 1069 PL_curpad = 0;
1004 PL_localizing = 0; 1070 PL_localizing = 0;
1005 PL_dirty = 0;
1006 PL_restartop = 0; 1071 PL_restartop = 0;
1007#if PERL_VERSION_ATLEAST (5,10,0) 1072#if PERL_VERSION_ATLEAST (5,10,0)
1008 PL_parser = 0; 1073 PL_parser = 0;
1009#endif 1074#endif
1010 PL_hints = 0; 1075 PL_hints = 0;
1011 1076
1012 /* recreate the die/warn hooks */ 1077 /* recreate the die/warn hooks */
1013 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1078 PL_diehook = SvREFCNT_inc (rv_diehook);
1014 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1079 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1015 1080
1016 GvSV (PL_defgv) = newSV (0); 1081 GvSV (PL_defgv) = newSV (0);
1017 GvAV (PL_defgv) = coro->args; coro->args = 0; 1082 GvAV (PL_defgv) = coro->args; coro->args = 0;
1018 GvSV (PL_errgv) = newSV (0); 1083 GvSV (PL_errgv) = newSV (0);
1019 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1084 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
… …
1040 /* this newly created coroutine might be run on an existing cctx which most 1105 /* this newly created coroutine might be run on an existing cctx which most
1041 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1106 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
1042 */ 1107 */
1043 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1108 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1044 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1109 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1110 slf_frame.destroy = 0;
1045 1111
1046 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1047 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
1048 coro_setup_op.op_type = OP_ENTERSUB; 1114 init_perl_op.op_type = OP_ENTERSUB;
1049 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
1050 /* no flags etc. required, as an init function won't be called */ 1116 /* no flags etc. required, as an init function won't be called */
1051 1117
1052 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
1053 1119
1054 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
1055 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
1056 1122
1123 SWAP_SVS (coro);
1124
1057 if (expect_false (enable_times)) 1125 if (ecb_expect_false (enable_times))
1058 { 1126 {
1059 coro_times_update (); 1127 coro_times_update ();
1060 coro_times_sub (coro); 1128 coro_times_sub (coro);
1061 } 1129 }
1062} 1130}
… …
1081 dounwind (-1); 1149 dounwind (-1);
1082 } 1150 }
1083} 1151}
1084 1152
1085static void 1153static void
1086coro_destruct_perl (pTHX_ struct coro *coro) 1154destroy_perl (pTHX_ struct coro *coro)
1087{ 1155{
1088 SV *svf [9]; 1156 SV *svf [9];
1089 1157
1090 { 1158 {
1159 SV *old_current = SvRV (coro_current);
1091 struct coro *current = SvSTATE_current; 1160 struct coro *current = SvSTATE (old_current);
1092 1161
1093 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1162 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1094 1163
1095 save_perl (aTHX_ current); 1164 save_perl (aTHX_ current);
1165
1166 /* this will cause transfer_check to croak on block*/
1167 SvRV_set (coro_current, (SV *)coro->hv);
1168
1096 load_perl (aTHX_ coro); 1169 load_perl (aTHX_ coro);
1097 1170
1098 coro_unwind_stacks (aTHX); 1171 coro_unwind_stacks (aTHX);
1172
1173 /* restore swapped sv's */
1174 SWAP_SVS (coro);
1175
1099 coro_destruct_stacks (aTHX); 1176 coro_destruct_stacks (aTHX);
1100 1177
1101 // now save some sv's to be free'd later 1178 // now save some sv's to be free'd later
1102 svf [0] = GvSV (PL_defgv); 1179 svf [0] = GvSV (PL_defgv);
1103 svf [1] = (SV *)GvAV (PL_defgv); 1180 svf [1] = (SV *)GvAV (PL_defgv);
… …
1108 svf [6] = (SV *)GvHV (PL_hintgv); 1185 svf [6] = (SV *)GvHV (PL_hintgv);
1109 svf [7] = PL_diehook; 1186 svf [7] = PL_diehook;
1110 svf [8] = PL_warnhook; 1187 svf [8] = PL_warnhook;
1111 assert (9 == sizeof (svf) / sizeof (*svf)); 1188 assert (9 == sizeof (svf) / sizeof (*svf));
1112 1189
1190 SvRV_set (coro_current, old_current);
1191
1113 load_perl (aTHX_ current); 1192 load_perl (aTHX_ current);
1114 } 1193 }
1115 1194
1116 { 1195 {
1117 int i; 1196 unsigned int i;
1118 1197
1119 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) 1198 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1120 SvREFCNT_dec (svf [i]); 1199 SvREFCNT_dec (svf [i]);
1121 1200
1122 SvREFCNT_dec (coro->saved_deffh); 1201 SvREFCNT_dec (coro->saved_deffh);
… …
1124 SvREFCNT_dec (coro->invoke_cb); 1203 SvREFCNT_dec (coro->invoke_cb);
1125 SvREFCNT_dec (coro->invoke_av); 1204 SvREFCNT_dec (coro->invoke_av);
1126 } 1205 }
1127} 1206}
1128 1207
1129INLINE void 1208ECB_INLINE void
1130free_coro_mortal (pTHX) 1209free_coro_mortal (pTHX)
1131{ 1210{
1132 if (expect_true (coro_mortal)) 1211 if (ecb_expect_true (coro_mortal))
1133 { 1212 {
1134 SvREFCNT_dec (coro_mortal); 1213 SvREFCNT_dec ((SV *)coro_mortal);
1135 coro_mortal = 0; 1214 coro_mortal = 0;
1136 } 1215 }
1137} 1216}
1138 1217
1139static int 1218static int
… …
1272 1351
1273 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ 1352 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1274} 1353}
1275 1354
1276/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ 1355/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1277static void NOINLINE 1356static void ecb_noinline
1278cctx_prepare (pTHX) 1357cctx_prepare (pTHX)
1279{ 1358{
1280 PL_top_env = &PL_start_env; 1359 PL_top_env = &PL_start_env;
1281 1360
1282 if (cctx_current->flags & CC_TRACE) 1361 if (cctx_current->flags & CC_TRACE)
… …
1293 slf_frame.prepare = slf_prepare_set_stacklevel; 1372 slf_frame.prepare = slf_prepare_set_stacklevel;
1294 slf_frame.check = slf_check_set_stacklevel; 1373 slf_frame.check = slf_check_set_stacklevel;
1295} 1374}
1296 1375
1297/* the tail of transfer: execute stuff we can only do after a transfer */ 1376/* the tail of transfer: execute stuff we can only do after a transfer */
1298INLINE void 1377ECB_INLINE void
1299transfer_tail (pTHX) 1378transfer_tail (pTHX)
1300{ 1379{
1301 free_coro_mortal (aTHX); 1380 free_coro_mortal (aTHX);
1302} 1381}
1303 1382
… …
1328 /* somebody or something will hit me for both perl_run and PL_restartop */ 1407 /* somebody or something will hit me for both perl_run and PL_restartop */
1329 PL_restartop = PL_op; 1408 PL_restartop = PL_op;
1330 perl_run (PL_curinterp); 1409 perl_run (PL_curinterp);
1331 /* 1410 /*
1332 * Unfortunately, there is no way to get at the return values of the 1411 * Unfortunately, there is no way to get at the return values of the
1333 * coro body here, as perl_run destroys these 1412 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1413 * runtime errors here, as this is just a random interpreter, not a thread.
1334 */ 1414 */
1335 1415
1336 /* 1416 /*
1337 * If perl-run returns we assume exit() was being called or the coro 1417 * If perl-run returns we assume exit() was being called or the coro
1338 * fell off the end, which seems to be the only valid (non-bug) 1418 * fell off the end, which seems to be the only valid (non-bug)
… …
1425cctx_destroy (coro_cctx *cctx) 1505cctx_destroy (coro_cctx *cctx)
1426{ 1506{
1427 if (!cctx) 1507 if (!cctx)
1428 return; 1508 return;
1429 1509
1430 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1510 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1431 1511
1432 --cctx_count; 1512 --cctx_count;
1433 coro_destroy (&cctx->cctx); 1513 coro_destroy (&cctx->cctx);
1434 1514
1435 /* coro_transfer creates new, empty cctx's */ 1515 /* coro_transfer creates new, empty cctx's */
… …
1454#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) 1534#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE))
1455 1535
1456static coro_cctx * 1536static coro_cctx *
1457cctx_get (pTHX) 1537cctx_get (pTHX)
1458{ 1538{
1459 while (expect_true (cctx_first)) 1539 while (ecb_expect_true (cctx_first))
1460 { 1540 {
1461 coro_cctx *cctx = cctx_first; 1541 coro_cctx *cctx = cctx_first;
1462 cctx_first = cctx->next; 1542 cctx_first = cctx->next;
1463 --cctx_idle; 1543 --cctx_idle;
1464 1544
1465 if (expect_true (!CCTX_EXPIRED (cctx))) 1545 if (ecb_expect_true (!CCTX_EXPIRED (cctx)))
1466 return cctx; 1546 return cctx;
1467 1547
1468 cctx_destroy (cctx); 1548 cctx_destroy (cctx);
1469 } 1549 }
1470 1550
… …
1475cctx_put (coro_cctx *cctx) 1555cctx_put (coro_cctx *cctx)
1476{ 1556{
1477 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); 1557 assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr));
1478 1558
1479 /* free another cctx if overlimit */ 1559 /* free another cctx if overlimit */
1480 if (expect_false (cctx_idle >= cctx_max_idle)) 1560 if (ecb_expect_false (cctx_idle >= cctx_max_idle))
1481 { 1561 {
1482 coro_cctx *first = cctx_first; 1562 coro_cctx *first = cctx_first;
1483 cctx_first = first->next; 1563 cctx_first = first->next;
1484 --cctx_idle; 1564 --cctx_idle;
1485 1565
… …
1496static void 1576static void
1497transfer_check (pTHX_ struct coro *prev, struct coro *next) 1577transfer_check (pTHX_ struct coro *prev, struct coro *next)
1498{ 1578{
1499 /* TODO: throwing up here is considered harmful */ 1579 /* TODO: throwing up here is considered harmful */
1500 1580
1501 if (expect_true (prev != next)) 1581 if (ecb_expect_true (prev != next))
1502 { 1582 {
1503 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1583 if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1504 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1584 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1505 1585
1506 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1586 if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1507 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1587 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1508 1588
1509#if !PERL_VERSION_ATLEAST (5,10,0) 1589#if !PERL_VERSION_ATLEAST (5,10,0)
1510 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1590 if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING))
1511 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1591 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1512#endif 1592#endif
1513 } 1593 }
1514} 1594}
1515 1595
1516/* always use the TRANSFER macro */ 1596/* always use the TRANSFER macro */
1517static void NOINLINE /* noinline so we have a fixed stackframe */ 1597static void ecb_noinline /* noinline so we have a fixed stackframe */
1518transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1598transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1519{ 1599{
1520 dSTACKLEVEL; 1600 dSTACKLEVEL;
1521 1601
1522 /* sometimes transfer is only called to set idle_sp */ 1602 /* sometimes transfer is only called to set idle_sp */
1523 if (expect_false (!prev)) 1603 if (ecb_expect_false (!prev))
1524 { 1604 {
1525 cctx_current->idle_sp = STACKLEVEL; 1605 cctx_current->idle_sp = STACKLEVEL;
1526 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1606 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1527 } 1607 }
1528 else if (expect_true (prev != next)) 1608 else if (ecb_expect_true (prev != next))
1529 { 1609 {
1530 coro_cctx *cctx_prev; 1610 coro_cctx *cctx_prev;
1531 1611
1532 if (expect_false (prev->flags & CF_NEW)) 1612 if (ecb_expect_false (prev->flags & CF_NEW))
1533 { 1613 {
1534 /* create a new empty/source context */ 1614 /* create a new empty/source context */
1535 prev->flags &= ~CF_NEW; 1615 prev->flags &= ~CF_NEW;
1536 prev->flags |= CF_RUNNING; 1616 prev->flags |= CF_RUNNING;
1537 } 1617 }
… …
1540 next->flags |= CF_RUNNING; 1620 next->flags |= CF_RUNNING;
1541 1621
1542 /* first get rid of the old state */ 1622 /* first get rid of the old state */
1543 save_perl (aTHX_ prev); 1623 save_perl (aTHX_ prev);
1544 1624
1545 if (expect_false (next->flags & CF_NEW)) 1625 if (ecb_expect_false (next->flags & CF_NEW))
1546 { 1626 {
1547 /* need to start coroutine */ 1627 /* need to start coroutine */
1548 next->flags &= ~CF_NEW; 1628 next->flags &= ~CF_NEW;
1549 /* setup coroutine call */ 1629 /* setup coroutine call */
1550 coro_setup (aTHX_ next); 1630 init_perl (aTHX_ next);
1551 } 1631 }
1552 else 1632 else
1553 load_perl (aTHX_ next); 1633 load_perl (aTHX_ next);
1554 1634
1555 /* possibly untie and reuse the cctx */ 1635 /* possibly untie and reuse the cctx */
1556 if (expect_true ( 1636 if (ecb_expect_true (
1557 cctx_current->idle_sp == STACKLEVEL 1637 cctx_current->idle_sp == STACKLEVEL
1558 && !(cctx_current->flags & CC_TRACE) 1638 && !(cctx_current->flags & CC_TRACE)
1559 && !force_cctx 1639 && !force_cctx
1560 )) 1640 ))
1561 { 1641 {
1562 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1642 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1563 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); 1643 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1564 1644
1565 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ 1645 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1566 /* without this the next cctx_get might destroy the running cctx while still in use */ 1646 /* without this the next cctx_get might destroy the running cctx while still in use */
1567 if (expect_false (CCTX_EXPIRED (cctx_current))) 1647 if (ecb_expect_false (CCTX_EXPIRED (cctx_current)))
1568 if (expect_true (!next->cctx)) 1648 if (ecb_expect_true (!next->cctx))
1569 next->cctx = cctx_get (aTHX); 1649 next->cctx = cctx_get (aTHX);
1570 1650
1571 cctx_put (cctx_current); 1651 cctx_put (cctx_current);
1572 } 1652 }
1573 else 1653 else
1574 prev->cctx = cctx_current; 1654 prev->cctx = cctx_current;
1575 1655
1576 ++next->usecount; 1656 ++next->usecount;
1577 1657
1578 cctx_prev = cctx_current; 1658 cctx_prev = cctx_current;
1579 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); 1659 cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1580 1660
1581 next->cctx = 0; 1661 next->cctx = 0;
1582 1662
1583 if (expect_false (cctx_prev != cctx_current)) 1663 if (ecb_expect_false (cctx_prev != cctx_current))
1584 { 1664 {
1585 cctx_prev->top_env = PL_top_env; 1665 cctx_prev->top_env = PL_top_env;
1586 PL_top_env = cctx_current->top_env; 1666 PL_top_env = cctx_current->top_env;
1587 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); 1667 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1588 } 1668 }
… …
1594#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1674#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1595#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1675#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1596 1676
1597/** high level stuff ********************************************************/ 1677/** high level stuff ********************************************************/
1598 1678
1679/* this function is actually Coro, not Coro::State, but we call it from here */
1680/* because it is convenient - but it hasn't been declared yet for that reason */
1599static int 1681static void
1682coro_call_on_destroy (pTHX_ struct coro *coro);
1683
1684static void
1600coro_state_destroy (pTHX_ struct coro *coro) 1685coro_state_destroy (pTHX_ struct coro *coro)
1601{ 1686{
1602 if (coro->flags & CF_DESTROYED) 1687 if (coro->flags & CF_ZOMBIE)
1603 return 0; 1688 return;
1604 1689
1605 if (coro->on_destroy && !PL_dirty)
1606 coro->on_destroy (aTHX_ coro); 1690 slf_destroy (aTHX_ coro);
1607 1691
1608 coro->flags |= CF_DESTROYED; 1692 coro->flags |= CF_ZOMBIE;
1609 1693
1610 if (coro->flags & CF_READY) 1694 if (coro->flags & CF_READY)
1611 { 1695 {
1612 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1696 /* reduce nready, as destroying a ready coro effectively unreadies it */
1613 /* alternative: look through all ready queues and remove the coro */ 1697 /* alternative: look through all ready queues and remove the coro */
1614 --coro_nready; 1698 --coro_nready;
1615 } 1699 }
1616 else 1700 else
1617 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1701 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1702
1703 if (coro->next) coro->next->prev = coro->prev;
1704 if (coro->prev) coro->prev->next = coro->next;
1705 if (coro == coro_first) coro_first = coro->next;
1618 1706
1619 if (coro->mainstack 1707 if (coro->mainstack
1620 && coro->mainstack != main_mainstack 1708 && coro->mainstack != main_mainstack
1621 && coro->slot 1709 && coro->slot
1622 && !PL_dirty) 1710 && !PL_dirty)
1623 coro_destruct_perl (aTHX_ coro); 1711 destroy_perl (aTHX_ coro);
1624 1712
1625 cctx_destroy (coro->cctx); 1713 cctx_destroy (coro->cctx);
1626 SvREFCNT_dec (coro->startcv); 1714 SvREFCNT_dec (coro->startcv);
1627 SvREFCNT_dec (coro->args); 1715 SvREFCNT_dec (coro->args);
1716 SvREFCNT_dec (coro->swap_sv);
1628 SvREFCNT_dec (CORO_THROW); 1717 SvREFCNT_dec (CORO_THROW);
1629 1718
1630 if (coro->next) coro->next->prev = coro->prev; 1719 coro_call_on_destroy (aTHX_ coro);
1631 if (coro->prev) coro->prev->next = coro->next;
1632 if (coro == coro_first) coro_first = coro->next;
1633 1720
1634 return 1; 1721 /* more destruction mayhem in coro_state_free */
1635} 1722}
1636 1723
1637static int 1724static int
1638coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1725coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1639{ 1726{
1640 struct coro *coro = (struct coro *)mg->mg_ptr; 1727 struct coro *coro = (struct coro *)mg->mg_ptr;
1641 mg->mg_ptr = 0; 1728 mg->mg_ptr = 0;
1642 1729
1643 coro->hv = 0;
1644
1645 if (--coro->refcnt < 0)
1646 {
1647 coro_state_destroy (aTHX_ coro); 1730 coro_state_destroy (aTHX_ coro);
1731 SvREFCNT_dec (coro->on_destroy);
1732 SvREFCNT_dec (coro->status);
1733
1648 Safefree (coro); 1734 Safefree (coro);
1649 }
1650 1735
1651 return 0; 1736 return 0;
1652} 1737}
1653 1738
1654static int 1739static int ecb_cold
1655coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1740coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1656{ 1741{
1657 struct coro *coro = (struct coro *)mg->mg_ptr; 1742 /* called when perl clones the current process the slow way (windows process emulation) */
1658 1743 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1659 ++coro->refcnt; 1744 mg->mg_ptr = 0;
1745 mg->mg_virtual = 0;
1660 1746
1661 return 0; 1747 return 0;
1662} 1748}
1663 1749
1664static MGVTBL coro_state_vtbl = { 1750static MGVTBL coro_state_vtbl = {
… …
1687 1773
1688 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1774 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1689 TRANSFER (ta, 1); 1775 TRANSFER (ta, 1);
1690} 1776}
1691 1777
1692/*****************************************************************************/
1693/* gensub: simple closure generation utility */
1694
1695#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1696
1697/* create a closure from XS, returns a code reference */
1698/* the arg can be accessed via GENSUB_ARG from the callback */
1699/* the callback must use dXSARGS/XSRETURN */
1700static SV *
1701gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1702{
1703 CV *cv = (CV *)newSV (0);
1704
1705 sv_upgrade ((SV *)cv, SVt_PVCV);
1706
1707 CvANON_on (cv);
1708 CvISXSUB_on (cv);
1709 CvXSUB (cv) = xsub;
1710 GENSUB_ARG = arg;
1711
1712 return newRV_noinc ((SV *)cv);
1713}
1714
1715/** Coro ********************************************************************/ 1778/** Coro ********************************************************************/
1716 1779
1717INLINE void 1780ECB_INLINE void
1718coro_enq (pTHX_ struct coro *coro) 1781coro_enq (pTHX_ struct coro *coro)
1719{ 1782{
1720 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; 1783 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1721 1784
1722 SvREFCNT_inc_NN (coro->hv); 1785 SvREFCNT_inc_NN (coro->hv);
… …
1724 coro->next_ready = 0; 1787 coro->next_ready = 0;
1725 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; 1788 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1726 ready [1] = coro; 1789 ready [1] = coro;
1727} 1790}
1728 1791
1729INLINE struct coro * 1792ECB_INLINE struct coro *
1730coro_deq (pTHX) 1793coro_deq (pTHX)
1731{ 1794{
1732 int prio; 1795 int prio;
1733 1796
1734 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) 1797 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
… …
1744 } 1807 }
1745 1808
1746 return 0; 1809 return 0;
1747} 1810}
1748 1811
1812static void
1813invoke_sv_ready_hook_helper (void)
1814{
1815 dTHX;
1816 dSP;
1817
1818 ENTER;
1819 SAVETMPS;
1820
1821 PUSHMARK (SP);
1822 PUTBACK;
1823 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1824
1825 FREETMPS;
1826 LEAVE;
1827}
1828
1749static int 1829static int
1750api_ready (pTHX_ SV *coro_sv) 1830api_ready (pTHX_ SV *coro_sv)
1751{ 1831{
1752 struct coro *coro;
1753 SV *sv_hook;
1754 void (*xs_hook)(void);
1755
1756 coro = SvSTATE (coro_sv); 1832 struct coro *coro = SvSTATE (coro_sv);
1757 1833
1758 if (coro->flags & CF_READY) 1834 if (coro->flags & CF_READY)
1759 return 0; 1835 return 0;
1760 1836
1761 coro->flags |= CF_READY; 1837 coro->flags |= CF_READY;
1762 1838
1763 sv_hook = coro_nready ? 0 : coro_readyhook;
1764 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1765
1766 coro_enq (aTHX_ coro); 1839 coro_enq (aTHX_ coro);
1767 ++coro_nready;
1768 1840
1769 if (sv_hook) 1841 if (!coro_nready++)
1770 { 1842 if (coroapi.readyhook)
1771 dSP; 1843 coroapi.readyhook ();
1772
1773 ENTER;
1774 SAVETMPS;
1775
1776 PUSHMARK (SP);
1777 PUTBACK;
1778 call_sv (sv_hook, G_VOID | G_DISCARD);
1779
1780 FREETMPS;
1781 LEAVE;
1782 }
1783
1784 if (xs_hook)
1785 xs_hook ();
1786 1844
1787 return 1; 1845 return 1;
1788} 1846}
1789 1847
1790static int 1848static int
… …
1792{ 1850{
1793 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1851 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1794} 1852}
1795 1853
1796/* expects to own a reference to next->hv */ 1854/* expects to own a reference to next->hv */
1797INLINE void 1855ECB_INLINE void
1798prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) 1856prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1799{ 1857{
1800 SV *prev_sv = SvRV (coro_current); 1858 SV *prev_sv = SvRV (coro_current);
1801 1859
1802 ta->prev = SvSTATE_hv (prev_sv); 1860 ta->prev = SvSTATE_hv (prev_sv);
… …
1815{ 1873{
1816 for (;;) 1874 for (;;)
1817 { 1875 {
1818 struct coro *next = coro_deq (aTHX); 1876 struct coro *next = coro_deq (aTHX);
1819 1877
1820 if (expect_true (next)) 1878 if (ecb_expect_true (next))
1821 { 1879 {
1822 /* cannot transfer to destroyed coros, skip and look for next */ 1880 /* cannot transfer to destroyed coros, skip and look for next */
1823 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1881 if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1824 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1882 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1825 else 1883 else
1826 { 1884 {
1827 next->flags &= ~CF_READY; 1885 next->flags &= ~CF_READY;
1828 --coro_nready; 1886 --coro_nready;
… …
1835 { 1893 {
1836 /* nothing to schedule: call the idle handler */ 1894 /* nothing to schedule: call the idle handler */
1837 if (SvROK (sv_idle) 1895 if (SvROK (sv_idle)
1838 && SvOBJECT (SvRV (sv_idle))) 1896 && SvOBJECT (SvRV (sv_idle)))
1839 { 1897 {
1898 if (SvRV (sv_idle) == SvRV (coro_current))
1899 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1900
1840 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1901 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1841 api_ready (aTHX_ SvRV (sv_idle)); 1902 api_ready (aTHX_ SvRV (sv_idle));
1842 --coro_nready; 1903 --coro_nready;
1843 } 1904 }
1844 else 1905 else
1845 { 1906 {
1907 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1846 dSP; 1908 dSP;
1847 1909
1848 ENTER; 1910 ENTER;
1849 SAVETMPS; 1911 SAVETMPS;
1850 1912
… …
1857 } 1919 }
1858 } 1920 }
1859 } 1921 }
1860} 1922}
1861 1923
1862INLINE void 1924ECB_INLINE void
1863prepare_cede (pTHX_ struct coro_transfer_args *ta) 1925prepare_cede (pTHX_ struct coro_transfer_args *ta)
1864{ 1926{
1865 api_ready (aTHX_ coro_current); 1927 api_ready (aTHX_ coro_current);
1866 prepare_schedule (aTHX_ ta); 1928 prepare_schedule (aTHX_ ta);
1867} 1929}
1868 1930
1869INLINE void 1931ECB_INLINE void
1870prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) 1932prepare_cede_notself (pTHX_ struct coro_transfer_args *ta)
1871{ 1933{
1872 SV *prev = SvRV (coro_current); 1934 SV *prev = SvRV (coro_current);
1873 1935
1874 if (coro_nready) 1936 if (coro_nready)
… …
1904{ 1966{
1905 struct coro_transfer_args ta; 1967 struct coro_transfer_args ta;
1906 1968
1907 prepare_cede (aTHX_ &ta); 1969 prepare_cede (aTHX_ &ta);
1908 1970
1909 if (expect_true (ta.prev != ta.next)) 1971 if (ecb_expect_true (ta.prev != ta.next))
1910 { 1972 {
1911 TRANSFER (ta, 1); 1973 TRANSFER (ta, 1);
1912 return 1; 1974 return 1;
1913 } 1975 }
1914 else 1976 else
… …
1957 coro->slot->runops = RUNOPS_DEFAULT; 2019 coro->slot->runops = RUNOPS_DEFAULT;
1958 } 2020 }
1959} 2021}
1960 2022
1961static void 2023static void
2024coro_push_av (pTHX_ AV *av, I32 gimme_v)
2025{
2026 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2027 {
2028 dSP;
2029
2030 if (gimme_v == G_SCALAR)
2031 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2032 else
2033 {
2034 int i;
2035 EXTEND (SP, AvFILLp (av) + 1);
2036
2037 for (i = 0; i <= AvFILLp (av); ++i)
2038 PUSHs (AvARRAY (av)[i]);
2039 }
2040
2041 PUTBACK;
2042 }
2043}
2044
2045static void
2046coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2047{
2048 if (!coro->on_destroy)
2049 coro->on_destroy = newAV ();
2050
2051 av_push (coro->on_destroy, cb);
2052}
2053
2054static void
2055slf_destroy_join (pTHX_ struct CoroSLF *frame)
2056{
2057 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2058}
2059
2060static int
2061slf_check_join (pTHX_ struct CoroSLF *frame)
2062{
2063 struct coro *coro = (struct coro *)frame->data;
2064
2065 if (!coro->status)
2066 return 1;
2067
2068 frame->destroy = 0;
2069
2070 coro_push_av (aTHX_ coro->status, GIMME_V);
2071
2072 SvREFCNT_dec ((SV *)coro->hv);
2073
2074 return 0;
2075}
2076
2077static void
2078slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2079{
2080 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2081
2082 if (items > 1)
2083 croak ("join called with too many arguments");
2084
2085 if (coro->status)
2086 frame->prepare = prepare_nop;
2087 else
2088 {
2089 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2090 frame->prepare = prepare_schedule;
2091 }
2092
2093 frame->check = slf_check_join;
2094 frame->destroy = slf_destroy_join;
2095 frame->data = (void *)coro;
2096 SvREFCNT_inc (coro->hv);
2097}
2098
2099static void
1962coro_call_on_destroy (pTHX_ struct coro *coro) 2100coro_call_on_destroy (pTHX_ struct coro *coro)
1963{ 2101{
1964 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2102 AV *od = coro->on_destroy;
1965 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1966 2103
1967 if (on_destroyp) 2104 if (!od)
1968 { 2105 return;
1969 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1970 2106
1971 while (AvFILLp (on_destroy) >= 0) 2107 while (AvFILLp (od) >= 0)
2108 {
2109 SV *cb = sv_2mortal (av_pop (od));
2110
2111 /* coro hv's (and only hv's at the moment) are supported as well */
2112 if (SvSTATEhv_p (aTHX_ cb))
2113 api_ready (aTHX_ cb);
2114 else
1972 { 2115 {
1973 dSP; /* don't disturb outer sp */ 2116 dSP; /* don't disturb outer sp */
1974 SV *cb = av_pop (on_destroy);
1975
1976 PUSHMARK (SP); 2117 PUSHMARK (SP);
1977 2118
1978 if (statusp) 2119 if (coro->status)
1979 { 2120 {
1980 int i; 2121 PUTBACK;
1981 AV *status = (AV *)SvRV (*statusp); 2122 coro_push_av (aTHX_ coro->status, G_ARRAY);
1982 EXTEND (SP, AvFILLp (status) + 1); 2123 SPAGAIN;
1983
1984 for (i = 0; i <= AvFILLp (status); ++i)
1985 PUSHs (AvARRAY (status)[i]);
1986 } 2124 }
1987 2125
1988 PUTBACK; 2126 PUTBACK;
1989 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2127 call_sv (cb, G_VOID | G_DISCARD);
1990 } 2128 }
1991 } 2129 }
1992} 2130}
1993 2131
1994static void 2132static void
1995slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2133coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
1996{ 2134{
2135 AV *av;
2136
2137 if (coro->status)
2138 {
2139 av = coro->status;
2140 av_clear (av);
2141 }
2142 else
2143 av = coro->status = newAV ();
2144
2145 /* items are actually not so common, so optimise for this case */
2146 if (items)
2147 {
1997 int i; 2148 int i;
1998 HV *hv = (HV *)SvRV (coro_current);
1999 AV *av = newAV ();
2000 2149
2001 av_extend (av, items - 1); 2150 av_extend (av, items - 1);
2151
2002 for (i = 0; i < items; ++i) 2152 for (i = 0; i < items; ++i)
2003 av_push (av, SvREFCNT_inc_NN (arg [i])); 2153 av_push (av, SvREFCNT_inc_NN (arg [i]));
2154 }
2155}
2004 2156
2005 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2157static void
2006 2158slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2159{
2007 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2160 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2008 api_ready (aTHX_ sv_manager); 2161 api_ready (aTHX_ sv_manager);
2009 2162
2010 frame->prepare = prepare_schedule; 2163 frame->prepare = prepare_schedule;
2011 frame->check = slf_check_repeat; 2164 frame->check = slf_check_repeat;
2012 2165
2013 /* as a minor optimisation, we could unwind all stacks here */ 2166 /* as a minor optimisation, we could unwind all stacks here */
2014 /* but that puts extra pressure on pp_slf, and is not worth much */ 2167 /* but that puts extra pressure on pp_slf, and is not worth much */
2015 /*coro_unwind_stacks (aTHX);*/ 2168 /*coro_unwind_stacks (aTHX);*/
2169}
2170
2171static void
2172slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2173{
2174 HV *coro_hv = (HV *)SvRV (coro_current);
2175
2176 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2177 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2178}
2179
2180static void
2181slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2182{
2183 HV *coro_hv;
2184 struct coro *coro;
2185
2186 if (items <= 0)
2187 croak ("Coro::cancel called without coro object,");
2188
2189 coro = SvSTATE (arg [0]);
2190 coro_hv = coro->hv;
2191
2192 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2193
2194 if (ecb_expect_false (coro->flags & CF_NOCANCEL))
2195 {
2196 /* coro currently busy cancelling something, so just notify it */
2197 coro->slf_frame.data = (void *)coro;
2198
2199 frame->prepare = prepare_nop;
2200 frame->check = slf_check_nop;
2201 }
2202 else if (coro_hv == (HV *)SvRV (coro_current))
2203 {
2204 /* cancelling the current coro is allowed, and equals terminate */
2205 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2206 }
2207 else
2208 {
2209 struct coro *self = SvSTATE_current;
2210
2211 /* otherwise we cancel directly, purely for speed reasons
2212 * unfortunately, this requires some magic trickery, as
2213 * somebody else could cancel us, so we have to fight the cancellation.
2214 * this is ugly, and hopefully fully worth the extra speed.
2215 * besides, I can't get the slow-but-safe version working...
2216 */
2217 slf_frame.data = 0;
2218 self->flags |= CF_NOCANCEL;
2219 coro_state_destroy (aTHX_ coro);
2220 self->flags &= ~CF_NOCANCEL;
2221
2222 if (slf_frame.data)
2223 {
2224 /* while we were busy we have been cancelled, so terminate */
2225 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2226 }
2227 else
2228 {
2229 frame->prepare = prepare_nop;
2230 frame->check = slf_check_nop;
2231 }
2232 }
2233}
2234
2235static int
2236slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2237{
2238 frame->prepare = 0;
2239 coro_unwind_stacks (aTHX);
2240
2241 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2242
2243 return 1;
2244}
2245
2246static int
2247safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2248{
2249 if (coro->cctx)
2250 croak ("coro inside C callback, unable to cancel at this time, caught");
2251
2252 if (coro->flags & CF_NEW)
2253 {
2254 coro_set_status (aTHX_ coro, arg, items);
2255 coro_state_destroy (aTHX_ coro);
2256 }
2257 else
2258 {
2259 if (!coro->slf_frame.prepare)
2260 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2261
2262 slf_destroy (aTHX_ coro);
2263
2264 coro_set_status (aTHX_ coro, arg, items);
2265 coro->slf_frame.prepare = prepare_nop;
2266 coro->slf_frame.check = slf_check_safe_cancel;
2267
2268 api_ready (aTHX_ (SV *)coro->hv);
2269 }
2270
2271 return 1;
2016} 2272}
2017 2273
2018/*****************************************************************************/ 2274/*****************************************************************************/
2019/* async pool handler */ 2275/* async pool handler */
2020 2276
… …
2051slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2307slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2052{ 2308{
2053 HV *hv = (HV *)SvRV (coro_current); 2309 HV *hv = (HV *)SvRV (coro_current);
2054 struct coro *coro = SvSTATE_hv ((SV *)hv); 2310 struct coro *coro = SvSTATE_hv ((SV *)hv);
2055 2311
2056 if (expect_true (coro->saved_deffh)) 2312 if (ecb_expect_true (coro->saved_deffh))
2057 { 2313 {
2058 /* subsequent iteration */ 2314 /* subsequent iteration */
2059 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2315 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2060 coro->saved_deffh = 0; 2316 coro->saved_deffh = 0;
2061 2317
2062 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2318 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2063 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2319 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2064 { 2320 {
2065 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2321 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2066 coro->invoke_av = newAV (); 2322 return;
2067
2068 frame->prepare = prepare_nop;
2069 } 2323 }
2070 else 2324 else
2071 { 2325 {
2072 av_clear (GvAV (PL_defgv)); 2326 av_clear (GvAV (PL_defgv));
2073 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2327 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2098 2352
2099static void 2353static void
2100coro_rouse_callback (pTHX_ CV *cv) 2354coro_rouse_callback (pTHX_ CV *cv)
2101{ 2355{
2102 dXSARGS; 2356 dXSARGS;
2103 SV *data = (SV *)GENSUB_ARG; 2357 SV *data = (SV *)S_GENSUB_ARG;
2104 2358
2105 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2359 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2106 { 2360 {
2107 /* first call, set args */ 2361 /* first call, set args */
2108 SV *coro = SvRV (data); 2362 SV *coro = SvRV (data);
… …
2174 || SvTYPE (SvRV (cb)) != SVt_PVCV 2428 || SvTYPE (SvRV (cb)) != SVt_PVCV
2175 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2429 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2176 croak ("Coro::rouse_wait called with illegal callback argument,"); 2430 croak ("Coro::rouse_wait called with illegal callback argument,");
2177 2431
2178 { 2432 {
2179 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2433 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2180 SV *data = (SV *)GENSUB_ARG; 2434 SV *data = (SV *)S_GENSUB_ARG;
2181 2435
2182 frame->data = (void *)data; 2436 frame->data = (void *)data;
2183 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2437 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2184 frame->check = slf_check_rouse_wait; 2438 frame->check = slf_check_rouse_wait;
2185 } 2439 }
… …
2189coro_new_rouse_cb (pTHX) 2443coro_new_rouse_cb (pTHX)
2190{ 2444{
2191 HV *hv = (HV *)SvRV (coro_current); 2445 HV *hv = (HV *)SvRV (coro_current);
2192 struct coro *coro = SvSTATE_hv (hv); 2446 struct coro *coro = SvSTATE_hv (hv);
2193 SV *data = newRV_inc ((SV *)hv); 2447 SV *data = newRV_inc ((SV *)hv);
2194 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2448 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2195 2449
2196 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2450 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2197 SvREFCNT_dec (data); /* magicext increases the refcount */ 2451 SvREFCNT_dec (data); /* magicext increases the refcount */
2198 2452
2199 SvREFCNT_dec (coro->rouse_cb); 2453 SvREFCNT_dec (coro->rouse_cb);
… …
2296static void 2550static void
2297slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2551slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2298{ 2552{
2299 frame->prepare = prepare_cede_notself; 2553 frame->prepare = prepare_cede_notself;
2300 frame->check = slf_check_nop; 2554 frame->check = slf_check_nop;
2555}
2556
2557/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2558static void
2559slf_destroy (pTHX_ struct coro *coro)
2560{
2561 /* this callback is reserved for slf functions needing to do cleanup */
2562 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2563 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2564
2565 /*
2566 * The on_destroy above most likely is from an SLF call.
2567 * Since by definition the SLF call will not finish when we destroy
2568 * the coro, we will have to force-finish it here, otherwise
2569 * cleanup functions cannot call SLF functions.
2570 */
2571 coro->slf_frame.prepare = 0;
2301} 2572}
2302 2573
2303/* 2574/*
2304 * these not obviously related functions are all rolled into one 2575 * these not obviously related functions are all rolled into one
2305 * function to increase chances that they all will call transfer with the same 2576 * function to increase chances that they all will call transfer with the same
… …
2312 I32 checkmark; /* mark SP to see how many elements check has pushed */ 2583 I32 checkmark; /* mark SP to see how many elements check has pushed */
2313 2584
2314 /* set up the slf frame, unless it has already been set-up */ 2585 /* set up the slf frame, unless it has already been set-up */
2315 /* the latter happens when a new coro has been started */ 2586 /* the latter happens when a new coro has been started */
2316 /* or when a new cctx was attached to an existing coroutine */ 2587 /* or when a new cctx was attached to an existing coroutine */
2317 if (expect_true (!slf_frame.prepare)) 2588 if (ecb_expect_true (!slf_frame.prepare))
2318 { 2589 {
2319 /* first iteration */ 2590 /* first iteration */
2320 dSP; 2591 dSP;
2321 SV **arg = PL_stack_base + TOPMARK + 1; 2592 SV **arg = PL_stack_base + TOPMARK + 1;
2322 int items = SP - arg; /* args without function object */ 2593 int items = SP - arg; /* args without function object */
… …
2363 while (slf_frame.check (aTHX_ &slf_frame)); 2634 while (slf_frame.check (aTHX_ &slf_frame));
2364 2635
2365 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2636 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
2366 2637
2367 /* exception handling */ 2638 /* exception handling */
2368 if (expect_false (CORO_THROW)) 2639 if (ecb_expect_false (CORO_THROW))
2369 { 2640 {
2370 SV *exception = sv_2mortal (CORO_THROW); 2641 SV *exception = sv_2mortal (CORO_THROW);
2371 2642
2372 CORO_THROW = 0; 2643 CORO_THROW = 0;
2373 sv_setsv (ERRSV, exception); 2644 sv_setsv (ERRSV, exception);
2374 croak (0); 2645 croak (0);
2375 } 2646 }
2376 2647
2377 /* return value handling - mostly like entersub */ 2648 /* return value handling - mostly like entersub */
2378 /* make sure we put something on the stack in scalar context */ 2649 /* make sure we put something on the stack in scalar context */
2379 if (GIMME_V == G_SCALAR) 2650 if (GIMME_V == G_SCALAR
2651 && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2380 { 2652 {
2381 dSP; 2653 dSP;
2382 SV **bot = PL_stack_base + checkmark; 2654 SV **bot = PL_stack_base + checkmark;
2383 2655
2384 if (sp == bot) /* too few, push undef */ 2656 if (sp == bot) /* too few, push undef */
2385 bot [1] = &PL_sv_undef; 2657 bot [1] = &PL_sv_undef;
2386 else if (sp != bot + 1) /* too many, take last one */ 2658 else /* too many, take last one */
2387 bot [1] = *sp; 2659 bot [1] = *sp;
2388 2660
2389 SP = bot + 1; 2661 SP = bot + 1;
2390 2662
2391 PUTBACK; 2663 PUTBACK;
… …
2424 if (PL_op->op_flags & OPf_STACKED) 2696 if (PL_op->op_flags & OPf_STACKED)
2425 { 2697 {
2426 if (items > slf_arga) 2698 if (items > slf_arga)
2427 { 2699 {
2428 slf_arga = items; 2700 slf_arga = items;
2429 free (slf_argv); 2701 Safefree (slf_argv);
2430 slf_argv = malloc (slf_arga * sizeof (SV *)); 2702 New (0, slf_argv, slf_arga, SV *);
2431 } 2703 }
2432 2704
2433 slf_argc = items; 2705 slf_argc = items;
2434 2706
2435 for (i = 0; i < items; ++i) 2707 for (i = 0; i < items; ++i)
… …
2498{ 2770{
2499 PerlIOBuf base; 2771 PerlIOBuf base;
2500 NV next, every; 2772 NV next, every;
2501} PerlIOCede; 2773} PerlIOCede;
2502 2774
2503static IV 2775static IV ecb_cold
2504PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) 2776PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab)
2505{ 2777{
2506 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2778 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2507 2779
2508 self->every = SvCUR (arg) ? SvNV (arg) : 0.01; 2780 self->every = SvCUR (arg) ? SvNV (arg) : 0.01;
2509 self->next = nvtime () + self->every; 2781 self->next = nvtime () + self->every;
2510 2782
2511 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); 2783 return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab);
2512} 2784}
2513 2785
2514static SV * 2786static SV * ecb_cold
2515PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) 2787PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags)
2516{ 2788{
2517 PerlIOCede *self = PerlIOSelf (f, PerlIOCede); 2789 PerlIOCede *self = PerlIOSelf (f, PerlIOCede);
2518 2790
2519 return newSVnv (self->every); 2791 return newSVnv (self->every);
… …
2631 SvREFCNT_dec (cb); 2903 SvREFCNT_dec (cb);
2632 } 2904 }
2633} 2905}
2634 2906
2635static void 2907static void
2636coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2908coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2637{ 2909{
2638 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2910 /* call $sem->adjust (0) to possibly wake up some other waiters */
2639 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2911 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2640} 2912}
2641 2913
2642static int 2914static int
2643slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2915slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2644{ 2916{
2645 AV *av = (AV *)frame->data; 2917 AV *av = (AV *)frame->data;
2646 SV *count_sv = AvARRAY (av)[0]; 2918 SV *count_sv = AvARRAY (av)[0];
2919 SV *coro_hv = SvRV (coro_current);
2647 2920
2648 /* if we are about to throw, don't actually acquire the lock, just throw */ 2921 /* if we are about to throw, don't actually acquire the lock, just throw */
2649 if (CORO_THROW) 2922 if (CORO_THROW)
2650 return 0; 2923 return 0;
2651 else if (SvIVX (count_sv) > 0) 2924 else if (SvIVX (count_sv) > 0)
2652 { 2925 {
2653 SvSTATE_current->on_destroy = 0; 2926 frame->destroy = 0;
2654 2927
2655 if (acquire) 2928 if (acquire)
2656 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2929 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2657 else 2930 else
2658 coro_semaphore_adjust (aTHX_ av, 0); 2931 coro_semaphore_adjust (aTHX_ av, 0);
… …
2663 { 2936 {
2664 int i; 2937 int i;
2665 /* if we were woken up but can't down, we look through the whole */ 2938 /* if we were woken up but can't down, we look through the whole */
2666 /* waiters list and only add us if we aren't in there already */ 2939 /* waiters list and only add us if we aren't in there already */
2667 /* this avoids some degenerate memory usage cases */ 2940 /* this avoids some degenerate memory usage cases */
2668 2941 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2669 for (i = 1; i <= AvFILLp (av); ++i)
2670 if (AvARRAY (av)[i] == SvRV (coro_current)) 2942 if (AvARRAY (av)[i] == coro_hv)
2671 return 1; 2943 return 1;
2672 2944
2673 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2945 av_push (av, SvREFCNT_inc (coro_hv));
2674 return 1; 2946 return 1;
2675 } 2947 }
2676} 2948}
2677 2949
2678static int 2950static int
… …
2701 { 2973 {
2702 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2974 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2703 2975
2704 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2976 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2705 frame->prepare = prepare_schedule; 2977 frame->prepare = prepare_schedule;
2706
2707 /* to avoid race conditions when a woken-up coro gets terminated */ 2978 /* to avoid race conditions when a woken-up coro gets terminated */
2708 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2979 /* we arrange for a temporary on_destroy that calls adjust (0) */
2709 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2980 frame->destroy = coro_semaphore_destroy;
2710 } 2981 }
2711} 2982}
2712 2983
2713static void 2984static void
2714slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2985slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2722{ 2993{
2723 if (items >= 2) 2994 if (items >= 2)
2724 { 2995 {
2725 /* callback form */ 2996 /* callback form */
2726 AV *av = (AV *)SvRV (arg [0]); 2997 AV *av = (AV *)SvRV (arg [0]);
2727 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2998 SV *cb_cv = s_get_cv_croak (arg [1]);
2728 2999
2729 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3000 av_push (av, SvREFCNT_inc_NN (cb_cv));
2730 3001
2731 if (SvIVX (AvARRAY (av)[0]) > 0) 3002 if (SvIVX (AvARRAY (av)[0]) > 0)
2732 coro_semaphore_adjust (aTHX_ av, 0); 3003 coro_semaphore_adjust (aTHX_ av, 0);
… …
2792{ 3063{
2793 AV *av = (AV *)SvRV (arg [0]); 3064 AV *av = (AV *)SvRV (arg [0]);
2794 3065
2795 if (items >= 2) 3066 if (items >= 2)
2796 { 3067 {
2797 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 3068 SV *cb_cv = s_get_cv_croak (arg [1]);
2798 av_push (av, SvREFCNT_inc_NN (cb_cv)); 3069 av_push (av, SvREFCNT_inc_NN (cb_cv));
2799 3070
2800 if (SvIVX (AvARRAY (av)[0])) 3071 if (SvIVX (AvARRAY (av)[0]))
2801 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 3072 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2802 3073
2803 frame->prepare = prepare_nop; 3074 frame->prepare = prepare_nop;
2804 frame->check = slf_check_nop; 3075 frame->check = slf_check_nop;
2805 } 3076 }
2806 else if (SvIVX (AvARRAY (av)[0])) 3077 else if (SvIVX (AvARRAY (av)[0]))
… …
2837 3108
2838static void 3109static void
2839coro_aio_callback (pTHX_ CV *cv) 3110coro_aio_callback (pTHX_ CV *cv)
2840{ 3111{
2841 dXSARGS; 3112 dXSARGS;
2842 AV *state = (AV *)GENSUB_ARG; 3113 AV *state = (AV *)S_GENSUB_ARG;
2843 SV *coro = av_pop (state); 3114 SV *coro = av_pop (state);
2844 SV *data_sv = newSV (sizeof (struct io_state)); 3115 SV *data_sv = newSV (sizeof (struct io_state));
2845 3116
2846 av_extend (state, items - 1); 3117 av_extend (state, items - 1);
2847 3118
… …
2932 dSP; 3203 dSP;
2933 3204
2934 static SV *prio_cv; 3205 static SV *prio_cv;
2935 static SV *prio_sv; 3206 static SV *prio_sv;
2936 3207
2937 if (expect_false (!prio_cv)) 3208 if (ecb_expect_false (!prio_cv))
2938 { 3209 {
2939 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); 3210 prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0);
2940 prio_sv = newSViv (0); 3211 prio_sv = newSViv (0);
2941 } 3212 }
2942 3213
… …
2961 3232
2962 for (i = 0; i < items; ++i) 3233 for (i = 0; i < items; ++i)
2963 PUSHs (arg [i]); 3234 PUSHs (arg [i]);
2964 3235
2965 /* now push the callback closure */ 3236 /* now push the callback closure */
2966 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3237 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2967 3238
2968 /* now call the AIO function - we assume our request is uncancelable */ 3239 /* now call the AIO function - we assume our request is uncancelable */
2969 PUTBACK; 3240 PUTBACK;
2970 call_sv ((SV *)req, G_VOID | G_DISCARD); 3241 call_sv ((SV *)req, G_VOID | G_DISCARD);
2971 } 3242 }
2972 3243
2973 /* now that the requets is going, we loop toll we have a result */ 3244 /* now that the request is going, we loop till we have a result */
2974 frame->data = (void *)state; 3245 frame->data = (void *)state;
2975 frame->prepare = prepare_schedule; 3246 frame->prepare = prepare_schedule;
2976 frame->check = slf_check_aio_req; 3247 frame->check = slf_check_aio_req;
2977} 3248}
2978 3249
… …
2988 3259
2989/*****************************************************************************/ 3260/*****************************************************************************/
2990 3261
2991#if CORO_CLONE 3262#if CORO_CLONE
2992# include "clone.c" 3263# include "clone.c"
3264#endif
3265
3266/*****************************************************************************/
3267
3268static SV *
3269coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3270{
3271 SV *coro_sv;
3272 struct coro *coro;
3273 MAGIC *mg;
3274 HV *hv;
3275 SV *cb;
3276 int i;
3277
3278 if (argc > 0)
3279 {
3280 cb = s_get_cv_croak (argv [0]);
3281
3282 if (!is_coro)
3283 {
3284 if (CvISXSUB (cb))
3285 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3286
3287 if (!CvROOT (cb))
3288 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3289 }
3290 }
3291
3292 Newz (0, coro, 1, struct coro);
3293 coro->args = newAV ();
3294 coro->flags = CF_NEW;
3295
3296 if (coro_first) coro_first->prev = coro;
3297 coro->next = coro_first;
3298 coro_first = coro;
3299
3300 coro->hv = hv = newHV ();
3301 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3302 mg->mg_flags |= MGf_DUP;
3303 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3304
3305 if (argc > 0)
3306 {
3307 av_extend (coro->args, argc + is_coro - 1);
3308
3309 if (is_coro)
3310 {
3311 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3312 cb = (SV *)cv_coro_run;
3313 }
3314
3315 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3316
3317 for (i = 1; i < argc; i++)
3318 av_push (coro->args, newSVsv (argv [i]));
3319 }
3320
3321 return coro_sv;
3322}
3323
3324#ifndef __cplusplus
3325ecb_cold XS(boot_Coro__State);
2993#endif 3326#endif
2994 3327
2995MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3328MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2996 3329
2997PROTOTYPES: DISABLE 3330PROTOTYPES: DISABLE
… …
3051 coroapi.prepare_nop = prepare_nop; 3384 coroapi.prepare_nop = prepare_nop;
3052 coroapi.prepare_schedule = prepare_schedule; 3385 coroapi.prepare_schedule = prepare_schedule;
3053 coroapi.prepare_cede = prepare_cede; 3386 coroapi.prepare_cede = prepare_cede;
3054 coroapi.prepare_cede_notself = prepare_cede_notself; 3387 coroapi.prepare_cede_notself = prepare_cede_notself;
3055 3388
3056 { 3389 time_init (aTHX);
3057 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3058
3059 if (!svp) croak ("Time::HiRes is required");
3060 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3061
3062 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3063
3064 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3065 u2time = INT2PTR (double (*)(), SvIV (*svp));
3066 }
3067 3390
3068 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3391 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3069} 3392}
3070 3393
3071SV * 3394SV *
3072new (char *klass, ...) 3395new (SV *klass, ...)
3073 ALIAS: 3396 ALIAS:
3074 Coro::new = 1 3397 Coro::new = 1
3075 CODE: 3398 CODE:
3076{ 3399 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3077 struct coro *coro; 3400 OUTPUT:
3078 MAGIC *mg;
3079 HV *hv;
3080 CV *cb;
3081 int i;
3082
3083 if (items > 1)
3084 {
3085 cb = coro_sv_2cv (aTHX_ ST (1));
3086
3087 if (!ix)
3088 {
3089 if (CvISXSUB (cb))
3090 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3091
3092 if (!CvROOT (cb))
3093 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3094 }
3095 }
3096
3097 Newz (0, coro, 1, struct coro);
3098 coro->args = newAV ();
3099 coro->flags = CF_NEW;
3100
3101 if (coro_first) coro_first->prev = coro;
3102 coro->next = coro_first;
3103 coro_first = coro;
3104
3105 coro->hv = hv = newHV ();
3106 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3107 mg->mg_flags |= MGf_DUP;
3108 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3109
3110 if (items > 1)
3111 {
3112 av_extend (coro->args, items - 1 + ix - 1);
3113
3114 if (ix)
3115 {
3116 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3117 cb = cv_coro_run;
3118 }
3119
3120 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3121
3122 for (i = 2; i < items; i++)
3123 av_push (coro->args, newSVsv (ST (i)));
3124 }
3125}
3126 OUTPUT:
3127 RETVAL 3401 RETVAL
3128 3402
3129void 3403void
3130transfer (...) 3404transfer (...)
3131 PROTOTYPE: $$ 3405 PROTOTYPE: $$
3132 CODE: 3406 CODE:
3133 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3407 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3134
3135bool
3136_destroy (SV *coro_sv)
3137 CODE:
3138 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3139 OUTPUT:
3140 RETVAL
3141 3408
3142void 3409void
3143_exit (int code) 3410_exit (int code)
3144 PROTOTYPE: $ 3411 PROTOTYPE: $
3145 CODE: 3412 CODE:
… …
3221 CODE: 3488 CODE:
3222{ 3489{
3223 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3490 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3224 { 3491 {
3225 struct coro *current = SvSTATE_current; 3492 struct coro *current = SvSTATE_current;
3493 struct CoroSLF slf_save;
3226 3494
3227 if (current != coro) 3495 if (current != coro)
3228 { 3496 {
3229 PUTBACK; 3497 PUTBACK;
3230 save_perl (aTHX_ current); 3498 save_perl (aTHX_ current);
3231 load_perl (aTHX_ coro); 3499 load_perl (aTHX_ coro);
3500 /* the coro is most likely in an active SLF call.
3501 * while not strictly required (the code we execute is
3502 * not allowed to call any SLF functions), it's cleaner
3503 * to reinitialise the slf_frame and restore it later.
3504 * This might one day allow us to actually do SLF calls
3505 * from code executed here.
3506 */
3507 slf_save = slf_frame;
3508 slf_frame.prepare = 0;
3232 SPAGAIN; 3509 SPAGAIN;
3233 } 3510 }
3234 3511
3235 PUSHSTACK; 3512 PUSHSTACK;
3236 3513
… …
3246 SPAGAIN; 3523 SPAGAIN;
3247 3524
3248 if (current != coro) 3525 if (current != coro)
3249 { 3526 {
3250 PUTBACK; 3527 PUTBACK;
3528 slf_frame = slf_save;
3251 save_perl (aTHX_ coro); 3529 save_perl (aTHX_ coro);
3252 load_perl (aTHX_ current); 3530 load_perl (aTHX_ current);
3253 SPAGAIN; 3531 SPAGAIN;
3254 } 3532 }
3255 } 3533 }
… …
3260 PROTOTYPE: $ 3538 PROTOTYPE: $
3261 ALIAS: 3539 ALIAS:
3262 is_ready = CF_READY 3540 is_ready = CF_READY
3263 is_running = CF_RUNNING 3541 is_running = CF_RUNNING
3264 is_new = CF_NEW 3542 is_new = CF_NEW
3265 is_destroyed = CF_DESTROYED 3543 is_destroyed = CF_ZOMBIE
3544 is_zombie = CF_ZOMBIE
3266 is_suspended = CF_SUSPENDED 3545 is_suspended = CF_SUSPENDED
3267 CODE: 3546 CODE:
3268 RETVAL = boolSV (coro->flags & ix); 3547 RETVAL = boolSV (coro->flags & ix);
3269 OUTPUT: 3548 OUTPUT:
3270 RETVAL 3549 RETVAL
3271 3550
3272void 3551void
3273throw (Coro::State self, SV *throw = &PL_sv_undef) 3552throw (Coro::State self, SV *exception = &PL_sv_undef)
3274 PROTOTYPE: $;$ 3553 PROTOTYPE: $;$
3275 CODE: 3554 CODE:
3276{ 3555{
3277 struct coro *current = SvSTATE_current; 3556 struct coro *current = SvSTATE_current;
3278 SV **throwp = self == current ? &CORO_THROW : &self->except; 3557 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3279 SvREFCNT_dec (*throwp); 3558 SvREFCNT_dec (*exceptionp);
3280 SvGETMAGIC (throw); 3559 SvGETMAGIC (exception);
3281 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3560 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3282} 3561}
3283 3562
3284void 3563void
3285api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3564api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3286 PROTOTYPE: $;$ 3565 PROTOTYPE: $;$
… …
3341 3620
3342void 3621void
3343cancel (Coro::State self) 3622cancel (Coro::State self)
3344 CODE: 3623 CODE:
3345 coro_state_destroy (aTHX_ self); 3624 coro_state_destroy (aTHX_ self);
3346 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3347
3348 3625
3349SV * 3626SV *
3350enable_times (int enabled = enable_times) 3627enable_times (int enabled = enable_times)
3351 CODE: 3628 CODE:
3352{ 3629{
… …
3367times (Coro::State self) 3644times (Coro::State self)
3368 PPCODE: 3645 PPCODE:
3369{ 3646{
3370 struct coro *current = SvSTATE (coro_current); 3647 struct coro *current = SvSTATE (coro_current);
3371 3648
3372 if (expect_false (current == self)) 3649 if (ecb_expect_false (current == self))
3373 { 3650 {
3374 coro_times_update (); 3651 coro_times_update ();
3375 coro_times_add (SvSTATE (coro_current)); 3652 coro_times_add (SvSTATE (coro_current));
3376 } 3653 }
3377 3654
3378 EXTEND (SP, 2); 3655 EXTEND (SP, 2);
3379 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); 3656 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3380 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); 3657 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3381 3658
3382 if (expect_false (current == self)) 3659 if (ecb_expect_false (current == self))
3383 coro_times_sub (SvSTATE (coro_current)); 3660 coro_times_sub (SvSTATE (coro_current));
3384} 3661}
3662
3663void
3664swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3665 CODE:
3666{
3667 struct coro *current = SvSTATE_current;
3668
3669 if (current == coro)
3670 SWAP_SVS (current);
3671
3672 if (!coro->swap_sv)
3673 coro->swap_sv = newAV ();
3674
3675 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3676 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3677
3678 if (current == coro)
3679 SWAP_SVS (current);
3680}
3681
3385 3682
3386MODULE = Coro::State PACKAGE = Coro 3683MODULE = Coro::State PACKAGE = Coro
3387 3684
3388BOOT: 3685BOOT:
3389{ 3686{
3390 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3687 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3391 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3688 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3392 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3689 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3393 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3394 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3690 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3395 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3691 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3396 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3692 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3397 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3693 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3398 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3694 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3399 3695
3400 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3696 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3401 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3697 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3402 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3698 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3403 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3699 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3404 3700
3405 coro_stash = gv_stashpv ("Coro", TRUE); 3701 coro_stash = gv_stashpv ("Coro", TRUE);
3406 3702
3407 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3703 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3408 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3704 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3409 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3705 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3427 sv_setiv (sv, (IV)&coroapi); 3723 sv_setiv (sv, (IV)&coroapi);
3428 SvREADONLY_on (sv); 3724 SvREADONLY_on (sv);
3429 } 3725 }
3430} 3726}
3431 3727
3728SV *
3729async (...)
3730 PROTOTYPE: &@
3731 CODE:
3732 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3733 api_ready (aTHX_ RETVAL);
3734 OUTPUT:
3735 RETVAL
3736
3737void
3738_destroy (Coro::State coro)
3739 CODE:
3740 /* used by the manager thread */
3741 coro_state_destroy (aTHX_ coro);
3742
3743void
3744on_destroy (Coro::State coro, SV *cb)
3745 CODE:
3746 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3747
3748void
3749join (...)
3750 CODE:
3751 CORO_EXECUTE_SLF_XS (slf_init_join);
3752
3432void 3753void
3433terminate (...) 3754terminate (...)
3434 CODE: 3755 CODE:
3435 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3756 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3757
3758void
3759cancel (...)
3760 CODE:
3761 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3762
3763int
3764safe_cancel (Coro::State self, ...)
3765 C_ARGS: aTHX_ self, &ST (1), items - 1
3436 3766
3437void 3767void
3438schedule (...) 3768schedule (...)
3439 CODE: 3769 CODE:
3440 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3770 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3470_set_readyhook (SV *hook) 3800_set_readyhook (SV *hook)
3471 PROTOTYPE: $ 3801 PROTOTYPE: $
3472 CODE: 3802 CODE:
3473 SvREFCNT_dec (coro_readyhook); 3803 SvREFCNT_dec (coro_readyhook);
3474 SvGETMAGIC (hook); 3804 SvGETMAGIC (hook);
3805 if (SvOK (hook))
3806 {
3475 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3807 coro_readyhook = newSVsv (hook);
3808 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3809 }
3810 else
3811 {
3812 coro_readyhook = 0;
3813 CORO_READYHOOK = 0;
3814 }
3476 3815
3477int 3816int
3478prio (Coro::State coro, int newprio = 0) 3817prio (Coro::State coro, int newprio = 0)
3479 PROTOTYPE: $;$ 3818 PROTOTYPE: $;$
3480 ALIAS: 3819 ALIAS:
… …
3544 for (i = 1; i < items; ++i) 3883 for (i = 1; i < items; ++i)
3545 av_push (av, SvREFCNT_inc_NN (ST (i))); 3884 av_push (av, SvREFCNT_inc_NN (ST (i)));
3546 3885
3547 if ((SV *)hv == &PL_sv_undef) 3886 if ((SV *)hv == &PL_sv_undef)
3548 { 3887 {
3549 PUSHMARK (SP); 3888 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3550 EXTEND (SP, 2);
3551 PUSHs (sv_Coro);
3552 PUSHs ((SV *)cv_pool_handler);
3553 PUTBACK;
3554 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3555 SPAGAIN;
3556
3557 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3889 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3890 SvREFCNT_dec (sv);
3558 } 3891 }
3559 3892
3560 { 3893 {
3561 struct coro *coro = SvSTATE_hv (hv); 3894 struct coro *coro = SvSTATE_hv (hv);
3562 3895
… …
3596 CODE: 3929 CODE:
3597{ 3930{
3598 struct coro *coro = SvSTATE_current; 3931 struct coro *coro = SvSTATE_current;
3599 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 3932 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3600 3933
3601 block = (SV *)coro_sv_2cv (aTHX_ block); 3934 block = s_get_cv_croak (block);
3602 3935
3603 if (!*avp) 3936 if (!*avp)
3604 *avp = newAV (); 3937 *avp = newAV ();
3605 3938
3606 av_push (*avp, SvREFCNT_inc (block)); 3939 av_push (*avp, SvREFCNT_inc (block));
… …
3806 4139
3807void 4140void
3808_register (char *target, char *proto, SV *req) 4141_register (char *target, char *proto, SV *req)
3809 CODE: 4142 CODE:
3810{ 4143{
3811 CV *req_cv = coro_sv_2cv (aTHX_ req); 4144 SV *req_cv = s_get_cv_croak (req);
3812 /* newXSproto doesn't return the CV on 5.8 */ 4145 /* newXSproto doesn't return the CV on 5.8 */
3813 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4146 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3814 sv_setpv ((SV *)slf_cv, proto); 4147 sv_setpv ((SV *)slf_cv, proto);
3815 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4148 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3816} 4149}
3817 4150
4151MODULE = Coro::State PACKAGE = Coro::Select
4152
4153void
4154patch_pp_sselect ()
4155 CODE:
4156 if (!coro_old_pp_sselect)
4157 {
4158 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4159 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4160 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4161 }
4162
4163void
4164unpatch_pp_sselect ()
4165 CODE:
4166 if (coro_old_pp_sselect)
4167 {
4168 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4169 coro_old_pp_sselect = 0;
4170 }
4171

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