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Comparing Coro/Coro/State.xs (file contents):
Revision 1.292 by root, Tue Nov 18 06:09:35 2008 UTC vs.
Revision 1.384 by root, Thu Feb 17 01:32:18 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
21
22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
16 25
17#ifdef WIN32 26#ifdef WIN32
18# undef setjmp 27# undef setjmp
19# undef longjmp 28# undef longjmp
20# undef _exit 29# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 30# define setjmp _setjmp /* deep magic */
22#else 31#else
23# include <inttypes.h> /* most portable stdint.h */ 32# include <inttypes.h> /* most portable stdint.h */
24#endif 33#endif
25 34
26#ifdef HAVE_MMAP 35#ifdef HAVE_MMAP
… …
51#endif 60#endif
52 61
53/* the maximum number of idle cctx that will be pooled */ 62/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 63static int cctx_max_idle = 4;
55 64
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (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
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 65#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD 66# undef CORO_STACKGUARD
111#endif 67#endif
112 68
113#ifndef CORO_STACKGUARD 69#ifndef CORO_STACKGUARD
… …
120#endif 76#endif
121 77
122/* The next macros try to return the current stack pointer, in an as 78/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 79 * portable way as possible. */
124#if __GNUC__ >= 4 80#if __GNUC__ >= 4
81# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 82# define STACKLEVEL __builtin_frame_address (0)
126#else 83#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 84# define dSTACKLEVEL volatile void *stacklevel
85# define STACKLEVEL ((void *)&stacklevel)
128#endif 86#endif
129 87
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 88#define IN_DESTRUCT PL_dirty
131 89
132#if __GNUC__ >= 3 90#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x) 91# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value)) 92# define expect(expr,value) __builtin_expect ((expr), (value))
135# define INLINE static inline 93# define INLINE static inline
136#else 94#else
137# define attribute(x) 95# define attribute(x)
138# define expect(expr,value) (expr) 96# define expect(expr,value) (expr)
139# define INLINE static 97# define INLINE static
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 101#define expect_true(expr) expect ((expr) != 0, 1)
144 102
145#define NOINLINE attribute ((noinline)) 103#define NOINLINE attribute ((noinline))
146 104
147#include "CoroAPI.h" 105#include "CoroAPI.h"
106#define GCoroAPI (&coroapi) /* very sneaky */
148 107
149#ifdef USE_ITHREADS 108#ifdef USE_ITHREADS
150# if CORO_PTHREAD 109# if CORO_PTHREAD
151static void *coro_thx; 110static void *coro_thx;
152# endif 111# endif
153#endif 112#endif
154 113
114#ifdef __linux
115# include <time.h> /* for timespec */
116# include <syscall.h> /* for SYS_* */
117# ifdef SYS_clock_gettime
118# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
119# define CORO_CLOCK_MONOTONIC 1
120# define CORO_CLOCK_THREAD_CPUTIME_ID 3
121# endif
122#endif
123
155static double (*nvtime)(); /* so why doesn't it take void? */ 124static double (*nvtime)(); /* so why doesn't it take void? */
125static void (*u2time)(pTHX_ UV ret[2]);
156 126
157/* we hijack an hopefully unused CV flag for our purposes */ 127/* we hijack an hopefully unused CV flag for our purposes */
158#define CVf_SLF 0x4000 128#define CVf_SLF 0x4000
159static OP *pp_slf (pTHX); 129static OP *pp_slf (pTHX);
160 130
… …
164static AV *main_mainstack; /* used to differentiate between $main and others */ 134static AV *main_mainstack; /* used to differentiate between $main and others */
165static JMPENV *main_top_env; 135static JMPENV *main_top_env;
166static HV *coro_state_stash, *coro_stash; 136static HV *coro_state_stash, *coro_stash;
167static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 137static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168 138
139static AV *av_destroy; /* destruction queue */
140static SV *sv_manager; /* the manager coro */
141static SV *sv_idle; /* $Coro::idle */
142
169static GV *irsgv; /* $/ */ 143static GV *irsgv; /* $/ */
170static GV *stdoutgv; /* *STDOUT */ 144static GV *stdoutgv; /* *STDOUT */
171static SV *rv_diehook; 145static SV *rv_diehook;
172static SV *rv_warnhook; 146static SV *rv_warnhook;
173static HV *hv_sig; /* %SIG */ 147static HV *hv_sig; /* %SIG */
174 148
175/* async_pool helper stuff */ 149/* async_pool helper stuff */
176static SV *sv_pool_rss; 150static SV *sv_pool_rss;
177static SV *sv_pool_size; 151static SV *sv_pool_size;
152static SV *sv_async_pool_idle; /* description string */
178static AV *av_async_pool; 153static AV *av_async_pool; /* idle pool */
154static SV *sv_Coro; /* class string */
155static CV *cv_pool_handler;
179 156
180/* Coro::AnyEvent */ 157/* Coro::AnyEvent */
181static SV *sv_activity; 158static SV *sv_activity;
159
160/* enable processtime/realtime profiling */
161static char enable_times;
162typedef U32 coro_ts[2];
163static coro_ts time_real, time_cpu;
164static char times_valid;
182 165
183static struct coro_cctx *cctx_first; 166static struct coro_cctx *cctx_first;
184static int cctx_count, cctx_idle; 167static int cctx_count, cctx_idle;
185 168
186enum { 169enum {
… …
212 int valgrind_id; 195 int valgrind_id;
213#endif 196#endif
214 unsigned char flags; 197 unsigned char flags;
215} coro_cctx; 198} coro_cctx;
216 199
200coro_cctx *cctx_current; /* the currently running cctx */
201
202/*****************************************************************************/
203
217enum { 204enum {
218 CF_RUNNING = 0x0001, /* coroutine is running */ 205 CF_RUNNING = 0x0001, /* coroutine is running */
219 CF_READY = 0x0002, /* coroutine is ready */ 206 CF_READY = 0x0002, /* coroutine is ready */
220 CF_NEW = 0x0004, /* has never been switched to */ 207 CF_NEW = 0x0004, /* has never been switched to */
221 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 208 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
209 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
222}; 210};
223 211
224/* the structure where most of the perl state is stored, overlaid on the cxstack */ 212/* the structure where most of the perl state is stored, overlaid on the cxstack */
225typedef struct 213typedef struct
226{ 214{
227 SV *defsv; 215 SV *defsv;
228 AV *defav; 216 AV *defav;
229 SV *errsv; 217 SV *errsv;
230 SV *irsgv; 218 SV *irsgv;
219 HV *hinthv;
231#define VAR(name,type) type name; 220#define VAR(name,type) type name;
232# include "state.h" 221# include "state.h"
233#undef VAR 222#undef VAR
234} perl_slots; 223} perl_slots;
235 224
… …
238/* this is a structure representing a perl-level coroutine */ 227/* this is a structure representing a perl-level coroutine */
239struct coro { 228struct coro {
240 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
241 coro_cctx *cctx; 230 coro_cctx *cctx;
242 231
232 /* ready queue */
233 struct coro *next_ready;
234
243 /* state data */ 235 /* state data */
244 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
245 AV *mainstack; 237 AV *mainstack;
246 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
247 239
240 CV *startcv; /* the CV to execute */
248 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
249 int refcnt; /* coroutines are refcounted, yes */ 242 int refcnt; /* coroutines are refcounted, yes */
250 int flags; /* CF_ flags */ 243 int flags; /* CF_ flags */
251 HV *hv; /* the perl hash associated with this coro, if any */ 244 HV *hv; /* the perl hash associated with this coro, if any */
252 void (*on_destroy)(pTHX_ struct coro *coro); 245 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
253 246
254 /* statistics */ 247 /* statistics */
255 int usecount; /* number of transfers to this coro */ 248 int usecount; /* number of transfers to this coro */
256 249
257 /* coro process data */ 250 /* coro process data */
258 int prio; 251 int prio;
259 SV *throw; /* exception to be thrown */ 252 SV *except; /* exception to be thrown */
253 SV *rouse_cb;
260 254
261 /* async_pool */ 255 /* async_pool */
262 SV *saved_deffh; 256 SV *saved_deffh;
257 SV *invoke_cb;
258 AV *invoke_av;
259
260 /* on_enter/on_leave */
261 AV *on_enter;
262 AV *on_leave;
263
264 /* swap_sv */
265 AV *swap_sv;
266
267 /* times */
268 coro_ts t_cpu, t_real;
263 269
264 /* linked list */ 270 /* linked list */
265 struct coro *next, *prev; 271 struct coro *next, *prev;
266}; 272};
267 273
… …
270 276
271/* the following variables are effectively part of the perl context */ 277/* the following variables are effectively part of the perl context */
272/* and get copied between struct coro and these variables */ 278/* and get copied between struct coro and these variables */
273/* the mainr easonw e don't support windows process emulation */ 279/* the mainr easonw e don't support windows process emulation */
274static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
275static SV *coro_throw;
276 281
277/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
278 283
279#define PRIO_MAX 3 284#define CORO_PRIO_MAX 3
280#define PRIO_HIGH 1 285#define CORO_PRIO_HIGH 1
281#define PRIO_NORMAL 0 286#define CORO_PRIO_NORMAL 0
282#define PRIO_LOW -1 287#define CORO_PRIO_LOW -1
283#define PRIO_IDLE -3 288#define CORO_PRIO_IDLE -3
284#define PRIO_MIN -4 289#define CORO_PRIO_MIN -4
285 290
286/* for Coro.pm */ 291/* for Coro.pm */
287static SV *coro_current; 292static SV *coro_current;
288static SV *coro_readyhook; 293static SV *coro_readyhook;
289static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
295static CV *cv_coro_run, *cv_coro_terminate;
290static struct coro *coro_first; 296static struct coro *coro_first;
291#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
298
299/** Coro::Select ************************************************************/
300
301static OP *(*coro_old_pp_sselect) (pTHX);
302static SV *coro_select_select;
303
304/* horrible hack, but if it works... */
305static OP *
306coro_pp_sselect (pTHX)
307{
308 dSP;
309 PUSHMARK (SP - 4); /* fake argument list */
310 XPUSHs (coro_select_select);
311 PUTBACK;
312
313 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
314 PL_op->op_flags |= OPf_STACKED;
315 PL_op->op_private = 0;
316 return PL_ppaddr [OP_ENTERSUB](aTHX);
317}
292 318
293/** lowlevel stuff **********************************************************/ 319/** lowlevel stuff **********************************************************/
294 320
295static SV * 321static SV *
296coro_get_sv (pTHX_ const char *name, int create) 322coro_get_sv (pTHX_ const char *name, int create)
… …
320 get_hv (name, create); 346 get_hv (name, create);
321#endif 347#endif
322 return get_hv (name, create); 348 return get_hv (name, create);
323} 349}
324 350
351INLINE void
352coro_times_update ()
353{
354#ifdef coro_clock_gettime
355 struct timespec ts;
356
357 ts.tv_sec = ts.tv_nsec = 0;
358 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
359 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
360
361 ts.tv_sec = ts.tv_nsec = 0;
362 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
363 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
364#else
365 dTHX;
366 UV tv[2];
367
368 u2time (aTHX_ tv);
369 time_real [0] = tv [0];
370 time_real [1] = tv [1] * 1000;
371#endif
372}
373
374INLINE void
375coro_times_add (struct coro *c)
376{
377 c->t_real [1] += time_real [1];
378 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
379 c->t_real [0] += time_real [0];
380
381 c->t_cpu [1] += time_cpu [1];
382 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
383 c->t_cpu [0] += time_cpu [0];
384}
385
386INLINE void
387coro_times_sub (struct coro *c)
388{
389 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
390 c->t_real [1] -= time_real [1];
391 c->t_real [0] -= time_real [0];
392
393 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
394 c->t_cpu [1] -= time_cpu [1];
395 c->t_cpu [0] -= time_cpu [0];
396}
397
398/*****************************************************************************/
399/* magic glue */
400
401#define CORO_MAGIC_type_cv 26
402#define CORO_MAGIC_type_state PERL_MAGIC_ext
403
404#define CORO_MAGIC_NN(sv, type) \
405 (expect_true (SvMAGIC (sv)->mg_type == type) \
406 ? SvMAGIC (sv) \
407 : mg_find (sv, type))
408
409#define CORO_MAGIC(sv, type) \
410 (expect_true (SvMAGIC (sv)) \
411 ? CORO_MAGIC_NN (sv, type) \
412 : 0)
413
414#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
415#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
416
417INLINE struct coro *
418SvSTATE_ (pTHX_ SV *coro)
419{
420 HV *stash;
421 MAGIC *mg;
422
423 if (SvROK (coro))
424 coro = SvRV (coro);
425
426 if (expect_false (SvTYPE (coro) != SVt_PVHV))
427 croak ("Coro::State object required");
428
429 stash = SvSTASH (coro);
430 if (expect_false (stash != coro_stash && stash != coro_state_stash))
431 {
432 /* very slow, but rare, check */
433 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
434 croak ("Coro::State object required");
435 }
436
437 mg = CORO_MAGIC_state (coro);
438 return (struct coro *)mg->mg_ptr;
439}
440
441#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
442
443/* faster than SvSTATE, but expects a coroutine hv */
444#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
445#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
446
447/*****************************************************************************/
448/* padlist management and caching */
449
325static AV * 450static AV *
326coro_clone_padlist (pTHX_ CV *cv) 451coro_derive_padlist (pTHX_ CV *cv)
327{ 452{
328 AV *padlist = CvPADLIST (cv); 453 AV *padlist = CvPADLIST (cv);
329 AV *newpadlist, *newpad; 454 AV *newpadlist, *newpad;
330 455
331 newpadlist = newAV (); 456 newpadlist = newAV ();
… …
336 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 461 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
337#endif 462#endif
338 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 463 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
339 --AvFILLp (padlist); 464 --AvFILLp (padlist);
340 465
341 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 466 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
342 av_store (newpadlist, 1, (SV *)newpad); 467 av_store (newpadlist, 1, (SV *)newpad);
343 468
344 return newpadlist; 469 return newpadlist;
345} 470}
346 471
347static void 472static void
348free_padlist (pTHX_ AV *padlist) 473free_padlist (pTHX_ AV *padlist)
349{ 474{
350 /* may be during global destruction */ 475 /* may be during global destruction */
351 if (SvREFCNT (padlist)) 476 if (!IN_DESTRUCT)
352 { 477 {
353 I32 i = AvFILLp (padlist); 478 I32 i = AvFILLp (padlist);
354 while (i >= 0) 479
480 while (i > 0) /* special-case index 0 */
355 { 481 {
356 SV **svp = av_fetch (padlist, i--, FALSE); 482 /* we try to be extra-careful here */
357 if (svp) 483 AV *av = (AV *)AvARRAY (padlist)[i--];
358 { 484 I32 j = AvFILLp (av);
359 SV *sv; 485
360 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 486 while (j >= 0)
487 SvREFCNT_dec (AvARRAY (av)[j--]);
488
489 AvFILLp (av) = -1;
361 SvREFCNT_dec (sv); 490 SvREFCNT_dec (av);
362
363 SvREFCNT_dec (*svp);
364 }
365 } 491 }
366 492
493 SvREFCNT_dec (AvARRAY (padlist)[0]);
494
495 AvFILLp (padlist) = -1;
367 SvREFCNT_dec ((SV*)padlist); 496 SvREFCNT_dec ((SV*)padlist);
368 } 497 }
369} 498}
370 499
371static int 500static int
372coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 501coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
373{ 502{
374 AV *padlist; 503 AV *padlist;
375 AV *av = (AV *)mg->mg_obj; 504 AV *av = (AV *)mg->mg_obj;
505
506 /* perl manages to free our internal AV and _then_ call us */
507 if (IN_DESTRUCT)
508 return 0;
376 509
377 /* casting is fun. */ 510 /* casting is fun. */
378 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 511 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
379 free_padlist (aTHX_ padlist); 512 free_padlist (aTHX_ padlist);
380 513
381 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 514 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
382 515
383 return 0; 516 return 0;
384} 517}
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 518
389static MGVTBL coro_cv_vtbl = { 519static MGVTBL coro_cv_vtbl = {
390 0, 0, 0, 0, 520 0, 0, 0, 0,
391 coro_cv_free 521 coro_cv_free
392}; 522};
393
394#define CORO_MAGIC_NN(sv, type) \
395 (expect_true (SvMAGIC (sv)->mg_type == type) \
396 ? SvMAGIC (sv) \
397 : mg_find (sv, type))
398
399#define CORO_MAGIC(sv, type) \
400 (expect_true (SvMAGIC (sv)) \
401 ? CORO_MAGIC_NN (sv, type) \
402 : 0)
403
404#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
405#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
406
407INLINE struct coro *
408SvSTATE_ (pTHX_ SV *coro)
409{
410 HV *stash;
411 MAGIC *mg;
412
413 if (SvROK (coro))
414 coro = SvRV (coro);
415
416 if (expect_false (SvTYPE (coro) != SVt_PVHV))
417 croak ("Coro::State object required");
418
419 stash = SvSTASH (coro);
420 if (expect_false (stash != coro_stash && stash != coro_state_stash))
421 {
422 /* very slow, but rare, check */
423 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
424 croak ("Coro::State object required");
425 }
426
427 mg = CORO_MAGIC_state (coro);
428 return (struct coro *)mg->mg_ptr;
429}
430
431#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
432
433/* faster than SvSTATE, but expects a coroutine hv */
434#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
435#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
436 523
437/* the next two functions merely cache the padlists */ 524/* the next two functions merely cache the padlists */
438static void 525static void
439get_padlist (pTHX_ CV *cv) 526get_padlist (pTHX_ CV *cv)
440{ 527{
… …
446 else 533 else
447 { 534 {
448#if CORO_PREFER_PERL_FUNCTIONS 535#if CORO_PREFER_PERL_FUNCTIONS
449 /* this is probably cleaner? but also slower! */ 536 /* this is probably cleaner? but also slower! */
450 /* in practise, it seems to be less stable */ 537 /* in practise, it seems to be less stable */
451 CV *cp = Perl_cv_clone (cv); 538 CV *cp = Perl_cv_clone (aTHX_ cv);
452 CvPADLIST (cv) = CvPADLIST (cp); 539 CvPADLIST (cv) = CvPADLIST (cp);
453 CvPADLIST (cp) = 0; 540 CvPADLIST (cp) = 0;
454 SvREFCNT_dec (cp); 541 SvREFCNT_dec (cp);
455#else 542#else
456 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 543 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457#endif 544#endif
458 } 545 }
459} 546}
460 547
461static void 548static void
… …
468 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 555 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
469 556
470 av = (AV *)mg->mg_obj; 557 av = (AV *)mg->mg_obj;
471 558
472 if (expect_false (AvFILLp (av) >= AvMAX (av))) 559 if (expect_false (AvFILLp (av) >= AvMAX (av)))
473 av_extend (av, AvMAX (av) + 1); 560 av_extend (av, AvFILLp (av) + 1);
474 561
475 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 562 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
476} 563}
477 564
478/** load & save, init *******************************************************/ 565/** load & save, init *******************************************************/
566
567/* swap sv heads, at least logically */
568static void
569swap_svs (pTHX_ Coro__State c)
570{
571 int i;
572
573 for (i = 0; i <= AvFILLp (c->swap_sv); )
574 {
575 SV *a = AvARRAY (c->swap_sv)[i++];
576 SV *b = AvARRAY (c->swap_sv)[i++];
577
578 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
579 SV tmp;
580
581 /* swap sv_any */
582 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
583
584 /* swap sv_flags */
585 SvFLAGS (&tmp) = SvFLAGS (a);
586 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
587 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
588
589#if PERL_VERSION_ATLEAST (5,10,0)
590 /* perl 5.10 complicates this _quite_ a bit, but it also is
591 * is much faster, so no quarrels here. alternatively, we could
592 * sv_upgrade to avoid this.
593 */
594 {
595 /* swap sv_u */
596 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
597
598 /* if SvANY points to the head, we need to adjust the pointers,
599 * as the pointer for a still points to b, and maybe vice versa.
600 */
601 #define svany_in_head(type) \
602 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
603
604 if (svany_in_head (SvTYPE (a)))
605 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
606
607 if (svany_in_head (SvTYPE (b)))
608 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
609 }
610#endif
611 }
612}
613
614#define SWAP_SVS(coro) \
615 if (expect_false ((coro)->swap_sv)) \
616 swap_svs (aTHX_ (coro))
617
618static void
619on_enterleave_call (pTHX_ SV *cb);
479 620
480static void 621static void
481load_perl (pTHX_ Coro__State c) 622load_perl (pTHX_ Coro__State c)
482{ 623{
483 perl_slots *slot = c->slot; 624 perl_slots *slot = c->slot;
484 c->slot = 0; 625 c->slot = 0;
485 626
486 PL_mainstack = c->mainstack; 627 PL_mainstack = c->mainstack;
487 628
488 GvSV (PL_defgv) = slot->defsv; 629 GvSV (PL_defgv) = slot->defsv;
489 GvAV (PL_defgv) = slot->defav; 630 GvAV (PL_defgv) = slot->defav;
490 GvSV (PL_errgv) = slot->errsv; 631 GvSV (PL_errgv) = slot->errsv;
491 GvSV (irsgv) = slot->irsgv; 632 GvSV (irsgv) = slot->irsgv;
633 GvHV (PL_hintgv) = slot->hinthv;
492 634
493 #define VAR(name,type) PL_ ## name = slot->name; 635 #define VAR(name,type) PL_ ## name = slot->name;
494 # include "state.h" 636 # include "state.h"
495 #undef VAR 637 #undef VAR
496 638
… …
509 651
510 PUTBACK; 652 PUTBACK;
511 } 653 }
512 654
513 slf_frame = c->slf_frame; 655 slf_frame = c->slf_frame;
514 coro_throw = c->throw; 656 CORO_THROW = c->except;
657
658 if (expect_false (enable_times))
659 {
660 if (expect_false (!times_valid))
661 coro_times_update ();
662
663 coro_times_sub (c);
664 }
665
666 if (expect_false (c->on_enter))
667 {
668 int i;
669
670 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
671 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
672 }
673
674 SWAP_SVS (c);
515} 675}
516 676
517static void 677static void
518save_perl (pTHX_ Coro__State c) 678save_perl (pTHX_ Coro__State c)
519{ 679{
520 c->throw = coro_throw; 680 SWAP_SVS (c);
681
682 if (expect_false (c->on_leave))
683 {
684 int i;
685
686 for (i = AvFILLp (c->on_leave); i >= 0; --i)
687 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
688 }
689
690 times_valid = 0;
691
692 if (expect_false (enable_times))
693 {
694 coro_times_update (); times_valid = 1;
695 coro_times_add (c);
696 }
697
698 c->except = CORO_THROW;
521 c->slf_frame = slf_frame; 699 c->slf_frame = slf_frame;
522 700
523 { 701 {
524 dSP; 702 dSP;
525 I32 cxix = cxstack_ix; 703 I32 cxix = cxstack_ix;
… …
537 { 715 {
538 while (expect_true (cxix >= 0)) 716 while (expect_true (cxix >= 0))
539 { 717 {
540 PERL_CONTEXT *cx = &ccstk[cxix--]; 718 PERL_CONTEXT *cx = &ccstk[cxix--];
541 719
542 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 720 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
543 { 721 {
544 CV *cv = cx->blk_sub.cv; 722 CV *cv = cx->blk_sub.cv;
545 723
546 if (expect_true (CvDEPTH (cv))) 724 if (expect_true (CvDEPTH (cv)))
547 { 725 {
… …
571 /* we manually unroll here, as usually 2 slots is enough */ 749 /* we manually unroll here, as usually 2 slots is enough */
572 if (SLOT_COUNT >= 1) CXINC; 750 if (SLOT_COUNT >= 1) CXINC;
573 if (SLOT_COUNT >= 2) CXINC; 751 if (SLOT_COUNT >= 2) CXINC;
574 if (SLOT_COUNT >= 3) CXINC; 752 if (SLOT_COUNT >= 3) CXINC;
575 { 753 {
576 int i; 754 unsigned int i;
577 for (i = 3; i < SLOT_COUNT; ++i) 755 for (i = 3; i < SLOT_COUNT; ++i)
578 CXINC; 756 CXINC;
579 } 757 }
580 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 758 cxstack_ix -= SLOT_COUNT; /* undo allocation */
581 759
582 c->mainstack = PL_mainstack; 760 c->mainstack = PL_mainstack;
583 761
584 { 762 {
585 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 763 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
586 764
587 slot->defav = GvAV (PL_defgv); 765 slot->defav = GvAV (PL_defgv);
588 slot->defsv = DEFSV; 766 slot->defsv = DEFSV;
589 slot->errsv = ERRSV; 767 slot->errsv = ERRSV;
590 slot->irsgv = GvSV (irsgv); 768 slot->irsgv = GvSV (irsgv);
769 slot->hinthv = GvHV (PL_hintgv);
591 770
592 #define VAR(name,type) slot->name = PL_ ## name; 771 #define VAR(name,type) slot->name = PL_ ## name;
593 # include "state.h" 772 # include "state.h"
594 #undef VAR 773 #undef VAR
595 } 774 }
… …
600 * of perl.c:init_stacks, except that it uses less memory 779 * of perl.c:init_stacks, except that it uses less memory
601 * on the (sometimes correct) assumption that coroutines do 780 * on the (sometimes correct) assumption that coroutines do
602 * not usually need a lot of stackspace. 781 * not usually need a lot of stackspace.
603 */ 782 */
604#if CORO_PREFER_PERL_FUNCTIONS 783#if CORO_PREFER_PERL_FUNCTIONS
605# define coro_init_stacks init_stacks 784# define coro_init_stacks(thx) init_stacks ()
606#else 785#else
607static void 786static void
608coro_init_stacks (pTHX) 787coro_init_stacks (pTHX)
609{ 788{
610 PL_curstackinfo = new_stackinfo(32, 8); 789 PL_curstackinfo = new_stackinfo(32, 8);
… …
673#if !PERL_VERSION_ATLEAST (5,10,0) 852#if !PERL_VERSION_ATLEAST (5,10,0)
674 Safefree (PL_retstack); 853 Safefree (PL_retstack);
675#endif 854#endif
676} 855}
677 856
857#define CORO_RSS \
858 rss += sizeof (SYM (curstackinfo)); \
859 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
860 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
861 rss += SYM (tmps_max) * sizeof (SV *); \
862 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
863 rss += SYM (scopestack_max) * sizeof (I32); \
864 rss += SYM (savestack_max) * sizeof (ANY);
865
678static size_t 866static size_t
679coro_rss (pTHX_ struct coro *coro) 867coro_rss (pTHX_ struct coro *coro)
680{ 868{
681 size_t rss = sizeof (*coro); 869 size_t rss = sizeof (*coro);
682 870
683 if (coro->mainstack) 871 if (coro->mainstack)
684 { 872 {
685 perl_slots tmp_slot;
686 perl_slots *slot;
687
688 if (coro->flags & CF_RUNNING) 873 if (coro->flags & CF_RUNNING)
689 { 874 {
690 slot = &tmp_slot; 875 #define SYM(sym) PL_ ## sym
691 876 CORO_RSS;
692 #define VAR(name,type) slot->name = PL_ ## name;
693 # include "state.h"
694 #undef VAR 877 #undef SYM
695 } 878 }
696 else 879 else
697 slot = coro->slot;
698
699 if (slot)
700 { 880 {
701 rss += sizeof (slot->curstackinfo); 881 #define SYM(sym) coro->slot->sym
702 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 882 CORO_RSS;
703 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 883 #undef SYM
704 rss += slot->tmps_max * sizeof (SV *);
705 rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32);
706 rss += slot->scopestack_max * sizeof (I32);
707 rss += slot->savestack_max * sizeof (ANY);
708
709#if !PERL_VERSION_ATLEAST (5,10,0)
710 rss += slot->retstack_max * sizeof (OP *);
711#endif
712 } 884 }
713 } 885 }
714 886
715 return rss; 887 return rss;
716} 888}
… …
729#endif 901#endif
730 902
731/* 903/*
732 * This overrides the default magic get method of %SIG elements. 904 * This overrides the default magic get method of %SIG elements.
733 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 905 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
734 * and instead of tryign to save and restore the hash elements, we just provide 906 * and instead of trying to save and restore the hash elements, we just provide
735 * readback here. 907 * readback here.
736 * We only do this when the hook is != 0, as they are often set to 0 temporarily,
737 * not expecting this to actually change the hook. This is a potential problem
738 * when a schedule happens then, but we ignore this.
739 */ 908 */
740static int 909static int
741coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 910coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
742{ 911{
743 const char *s = MgPV_nolen_const (mg); 912 const char *s = MgPV_nolen_const (mg);
… …
796 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 965 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
797 966
798 if (svp) 967 if (svp)
799 { 968 {
800 SV *old = *svp; 969 SV *old = *svp;
801 *svp = newSVsv (sv); 970 *svp = SvOK (sv) ? newSVsv (sv) : 0;
802 SvREFCNT_dec (old); 971 SvREFCNT_dec (old);
803 return 0; 972 return 0;
804 } 973 }
805 } 974 }
806 975
… …
818slf_check_nop (pTHX_ struct CoroSLF *frame) 987slf_check_nop (pTHX_ struct CoroSLF *frame)
819{ 988{
820 return 0; 989 return 0;
821} 990}
822 991
823static UNOP coro_setup_op; 992static int
993slf_check_repeat (pTHX_ struct CoroSLF *frame)
994{
995 return 1;
996}
997
998static UNOP init_perl_op;
824 999
825static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1000static void NOINLINE /* noinline to keep it out of the transfer fast path */
826coro_setup (pTHX_ struct coro *coro) 1001init_perl (pTHX_ struct coro *coro)
827{ 1002{
828 /* 1003 /*
829 * emulate part of the perl startup here. 1004 * emulate part of the perl startup here.
830 */ 1005 */
831 coro_init_stacks (aTHX); 1006 coro_init_stacks (aTHX);
832 1007
833 PL_runops = RUNOPS_DEFAULT; 1008 PL_runops = RUNOPS_DEFAULT;
834 PL_curcop = &PL_compiling; 1009 PL_curcop = &PL_compiling;
835 PL_in_eval = EVAL_NULL; 1010 PL_in_eval = EVAL_NULL;
836 PL_comppad = 0; 1011 PL_comppad = 0;
1012 PL_comppad_name = 0;
1013 PL_comppad_name_fill = 0;
1014 PL_comppad_name_floor = 0;
837 PL_curpm = 0; 1015 PL_curpm = 0;
838 PL_curpad = 0; 1016 PL_curpad = 0;
839 PL_localizing = 0; 1017 PL_localizing = 0;
840 PL_dirty = 0;
841 PL_restartop = 0; 1018 PL_restartop = 0;
842#if PERL_VERSION_ATLEAST (5,10,0) 1019#if PERL_VERSION_ATLEAST (5,10,0)
843 PL_parser = 0; 1020 PL_parser = 0;
844#endif 1021#endif
1022 PL_hints = 0;
845 1023
846 /* recreate the die/warn hooks */ 1024 /* recreate the die/warn hooks */
847 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1025 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
848 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1026 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
849 1027
850 GvSV (PL_defgv) = newSV (0); 1028 GvSV (PL_defgv) = newSV (0);
851 GvAV (PL_defgv) = coro->args; coro->args = 0; 1029 GvAV (PL_defgv) = coro->args; coro->args = 0;
852 GvSV (PL_errgv) = newSV (0); 1030 GvSV (PL_errgv) = newSV (0);
853 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1031 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1032 GvHV (PL_hintgv) = 0;
854 PL_rs = newSVsv (GvSV (irsgv)); 1033 PL_rs = newSVsv (GvSV (irsgv));
855 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1034 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
856 1035
857 { 1036 {
858 dSP; 1037 dSP;
859 UNOP myop; 1038 UNOP myop;
860 1039
861 Zero (&myop, 1, UNOP); 1040 Zero (&myop, 1, UNOP);
862 myop.op_next = Nullop; 1041 myop.op_next = Nullop;
1042 myop.op_type = OP_ENTERSUB;
863 myop.op_flags = OPf_WANT_VOID; 1043 myop.op_flags = OPf_WANT_VOID;
864 1044
865 PUSHMARK (SP); 1045 PUSHMARK (SP);
866 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1046 PUSHs ((SV *)coro->startcv);
867 PUTBACK; 1047 PUTBACK;
868 PL_op = (OP *)&myop; 1048 PL_op = (OP *)&myop;
869 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1049 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870 SPAGAIN;
871 } 1050 }
872 1051
873 /* this newly created coroutine might be run on an existing cctx which most 1052 /* this newly created coroutine might be run on an existing cctx which most
874 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1053 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875 */ 1054 */
876 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1055 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1056 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878 1057
879 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1058 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
880 coro_setup_op.op_type = OP_CUSTOM; 1059 init_perl_op.op_next = PL_op;
1060 init_perl_op.op_type = OP_ENTERSUB;
881 coro_setup_op.op_ppaddr = pp_slf; 1061 init_perl_op.op_ppaddr = pp_slf;
882 coro_setup_op.op_next = PL_op; 1062 /* no flags etc. required, as an init function won't be called */
883 1063
884 PL_op = (OP *)&coro_setup_op; 1064 PL_op = (OP *)&init_perl_op;
885 1065
886 /* copy throw, in case it was set before coro_setup */ 1066 /* copy throw, in case it was set before init_perl */
887 coro_throw = coro->throw; 1067 CORO_THROW = coro->except;
888}
889 1068
1069 SWAP_SVS (coro);
1070
1071 if (expect_false (enable_times))
1072 {
1073 coro_times_update ();
1074 coro_times_sub (coro);
1075 }
1076}
1077
890static void 1078static void
891coro_destruct (pTHX_ struct coro *coro) 1079coro_unwind_stacks (pTHX)
892{ 1080{
893 if (!IN_DESTRUCT) 1081 if (!IN_DESTRUCT)
894 { 1082 {
895 /* restore all saved variables and stuff */ 1083 /* restore all saved variables and stuff */
896 LEAVE_SCOPE (0); 1084 LEAVE_SCOPE (0);
… …
904 POPSTACK_TO (PL_mainstack); 1092 POPSTACK_TO (PL_mainstack);
905 1093
906 /* unwind main stack */ 1094 /* unwind main stack */
907 dounwind (-1); 1095 dounwind (-1);
908 } 1096 }
1097}
909 1098
910 SvREFCNT_dec (GvSV (PL_defgv)); 1099static void
911 SvREFCNT_dec (GvAV (PL_defgv)); 1100destroy_perl (pTHX_ struct coro *coro)
912 SvREFCNT_dec (GvSV (PL_errgv)); 1101{
913 SvREFCNT_dec (PL_defoutgv); 1102 SV *svf [9];
914 SvREFCNT_dec (PL_rs);
915 SvREFCNT_dec (GvSV (irsgv));
916 1103
917 SvREFCNT_dec (PL_diehook);
918 SvREFCNT_dec (PL_warnhook);
919 1104 {
1105 struct coro *current = SvSTATE_current;
1106
1107 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1108
1109 save_perl (aTHX_ current);
1110 load_perl (aTHX_ coro);
1111
1112 coro_unwind_stacks (aTHX);
1113 coro_destruct_stacks (aTHX);
1114
1115 /* restore swapped sv's */
1116 SWAP_SVS (coro);
1117
1118 // now save some sv's to be free'd later
1119 svf [0] = GvSV (PL_defgv);
1120 svf [1] = (SV *)GvAV (PL_defgv);
1121 svf [2] = GvSV (PL_errgv);
1122 svf [3] = (SV *)PL_defoutgv;
1123 svf [4] = PL_rs;
1124 svf [5] = GvSV (irsgv);
1125 svf [6] = (SV *)GvHV (PL_hintgv);
1126 svf [7] = PL_diehook;
1127 svf [8] = PL_warnhook;
1128 assert (9 == sizeof (svf) / sizeof (*svf));
1129
1130 load_perl (aTHX_ current);
1131 }
1132
1133 {
1134 unsigned int i;
1135
1136 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1137 SvREFCNT_dec (svf [i]);
1138
920 SvREFCNT_dec (coro->saved_deffh); 1139 SvREFCNT_dec (coro->saved_deffh);
921 SvREFCNT_dec (coro_throw); 1140 SvREFCNT_dec (coro->rouse_cb);
922 1141 SvREFCNT_dec (coro->invoke_cb);
923 coro_destruct_stacks (aTHX); 1142 SvREFCNT_dec (coro->invoke_av);
1143 }
924} 1144}
925 1145
926INLINE void 1146INLINE void
927free_coro_mortal (pTHX) 1147free_coro_mortal (pTHX)
928{ 1148{
… …
936static int 1156static int
937runops_trace (pTHX) 1157runops_trace (pTHX)
938{ 1158{
939 COP *oldcop = 0; 1159 COP *oldcop = 0;
940 int oldcxix = -2; 1160 int oldcxix = -2;
941 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942 coro_cctx *cctx = coro->cctx;
943 1161
944 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1162 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945 { 1163 {
946 PERL_ASYNC_CHECK (); 1164 PERL_ASYNC_CHECK ();
947 1165
948 if (cctx->flags & CC_TRACE_ALL) 1166 if (cctx_current->flags & CC_TRACE_ALL)
949 { 1167 {
950 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1168 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
951 { 1169 {
952 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1170 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
953 SV **bot, **top; 1171 SV **bot, **top;
954 AV *av = newAV (); /* return values */ 1172 AV *av = newAV (); /* return values */
955 SV **cb; 1173 SV **cb;
… …
992 1210
993 if (PL_curcop != &PL_compiling) 1211 if (PL_curcop != &PL_compiling)
994 { 1212 {
995 SV **cb; 1213 SV **cb;
996 1214
997 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1215 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
998 { 1216 {
999 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1217 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000 1218
1001 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1219 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002 { 1220 {
1003 runops_proc_t old_runops = PL_runops;
1004 dSP; 1221 dSP;
1005 GV *gv = CvGV (cx->blk_sub.cv); 1222 GV *gv = CvGV (cx->blk_sub.cv);
1006 SV *fullname = sv_2mortal (newSV (0)); 1223 SV *fullname = sv_2mortal (newSV (0));
1007 1224
1008 if (isGV (gv)) 1225 if (isGV (gv))
… …
1013 SAVETMPS; 1230 SAVETMPS;
1014 EXTEND (SP, 3); 1231 EXTEND (SP, 3);
1015 PUSHMARK (SP); 1232 PUSHMARK (SP);
1016 PUSHs (&PL_sv_yes); 1233 PUSHs (&PL_sv_yes);
1017 PUSHs (fullname); 1234 PUSHs (fullname);
1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1235 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019 PUTBACK; 1236 PUTBACK;
1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1237 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0);
1021 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 1238 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022 SPAGAIN; 1239 SPAGAIN;
1023 FREETMPS; 1240 FREETMPS;
… …
1026 } 1243 }
1027 1244
1028 oldcxix = cxstack_ix; 1245 oldcxix = cxstack_ix;
1029 } 1246 }
1030 1247
1031 if (cctx->flags & CC_TRACE_LINE) 1248 if (cctx_current->flags & CC_TRACE_LINE)
1032 { 1249 {
1033 dSP; 1250 dSP;
1034 1251
1035 PL_runops = RUNOPS_DEFAULT; 1252 PL_runops = RUNOPS_DEFAULT;
1036 ENTER; 1253 ENTER;
… …
1055 1272
1056 TAINT_NOT; 1273 TAINT_NOT;
1057 return 0; 1274 return 0;
1058} 1275}
1059 1276
1060static struct coro_cctx *cctx_ssl_cctx;
1061static struct CoroSLF cctx_ssl_frame; 1277static struct CoroSLF cctx_ssl_frame;
1062 1278
1063static void 1279static void
1064slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1280slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065{ 1281{
1066 ta->prev = (struct coro *)cctx_ssl_cctx;
1067 ta->next = 0; 1282 ta->prev = 0;
1068} 1283}
1069 1284
1070static int 1285static int
1071slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1286slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072{ 1287{
1073 *frame = cctx_ssl_frame; 1288 *frame = cctx_ssl_frame;
1074 1289
1075 return 1; /* execute the restored frame - there must be one */ 1290 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076} 1291}
1077 1292
1078/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ 1293/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079static void NOINLINE 1294static void NOINLINE
1080cctx_prepare (pTHX_ coro_cctx *cctx) 1295cctx_prepare (pTHX)
1081{ 1296{
1082 PL_top_env = &PL_start_env; 1297 PL_top_env = &PL_start_env;
1083 1298
1084 if (cctx->flags & CC_TRACE) 1299 if (cctx_current->flags & CC_TRACE)
1085 PL_runops = runops_trace; 1300 PL_runops = runops_trace;
1086 1301
1087 /* we already must be in an SLF call, there is no other valid way 1302 /* we already must be executing an SLF op, there is no other valid way
1088 * that can lead to creation of a new cctx */ 1303 * that can lead to creation of a new cctx */
1089 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1304 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1305 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091 1306
1092 cctx_ssl_cctx = cctx; 1307 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093 cctx_ssl_frame = slf_frame; 1308 cctx_ssl_frame = slf_frame;
1094 1309
1095 slf_frame.prepare = slf_prepare_set_stacklevel; 1310 slf_frame.prepare = slf_prepare_set_stacklevel;
1096 slf_frame.check = slf_check_set_stacklevel; 1311 slf_frame.check = slf_check_set_stacklevel;
1097} 1312}
… …
1120 /* normally we would need to skip the entersub here */ 1335 /* normally we would need to skip the entersub here */
1121 /* not doing so will re-execute it, which is exactly what we want */ 1336 /* not doing so will re-execute it, which is exactly what we want */
1122 /* PL_nop = PL_nop->op_next */ 1337 /* PL_nop = PL_nop->op_next */
1123 1338
1124 /* inject a fake subroutine call to cctx_init */ 1339 /* inject a fake subroutine call to cctx_init */
1125 cctx_prepare (aTHX_ (coro_cctx *)arg); 1340 cctx_prepare (aTHX);
1126 1341
1127 /* cctx_run is the alternative tail of transfer() */ 1342 /* cctx_run is the alternative tail of transfer() */
1128 transfer_tail (aTHX); 1343 transfer_tail (aTHX);
1129 1344
1130 /* somebody or something will hit me for both perl_run and PL_restartop */ 1345 /* somebody or something will hit me for both perl_run and PL_restartop */
1131 PL_restartop = PL_op; 1346 PL_restartop = PL_op;
1132 perl_run (PL_curinterp); 1347 perl_run (PL_curinterp);
1348 /*
1349 * Unfortunately, there is no way to get at the return values of the
1350 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1351 * runtime errors here, as this is just a random interpreter, not a thread.
1352 */
1133 1353
1134 /* 1354 /*
1135 * If perl-run returns we assume exit() was being called or the coro 1355 * If perl-run returns we assume exit() was being called or the coro
1136 * fell off the end, which seems to be the only valid (non-bug) 1356 * fell off the end, which seems to be the only valid (non-bug)
1137 * reason for perl_run to return. We try to exit by jumping to the 1357 * reason for perl_run to return. We try to exit by jumping to the
1138 * bootstrap-time "top" top_env, as we cannot restore the "main" 1358 * bootstrap-time "top" top_env, as we cannot restore the "main"
1139 * coroutine as Coro has no such concept 1359 * coroutine as Coro has no such concept.
1360 * This actually isn't valid with the pthread backend, but OSes requiring
1361 * that backend are too broken to do it in a standards-compliant way.
1140 */ 1362 */
1141 PL_top_env = main_top_env; 1363 PL_top_env = main_top_env;
1142 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1364 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1143 } 1365 }
1144} 1366}
… …
1221cctx_destroy (coro_cctx *cctx) 1443cctx_destroy (coro_cctx *cctx)
1222{ 1444{
1223 if (!cctx) 1445 if (!cctx)
1224 return; 1446 return;
1225 1447
1448 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1449
1226 --cctx_count; 1450 --cctx_count;
1227 coro_destroy (&cctx->cctx); 1451 coro_destroy (&cctx->cctx);
1228 1452
1229 /* coro_transfer creates new, empty cctx's */ 1453 /* coro_transfer creates new, empty cctx's */
1230 if (cctx->sptr) 1454 if (cctx->sptr)
… …
1293 /* TODO: throwing up here is considered harmful */ 1517 /* TODO: throwing up here is considered harmful */
1294 1518
1295 if (expect_true (prev != next)) 1519 if (expect_true (prev != next))
1296 { 1520 {
1297 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1521 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1298 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1522 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1299 1523
1300 if (expect_false (next->flags & CF_RUNNING))
1301 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1302
1303 if (expect_false (next->flags & CF_DESTROYED)) 1524 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1304 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1525 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1305 1526
1306#if !PERL_VERSION_ATLEAST (5,10,0) 1527#if !PERL_VERSION_ATLEAST (5,10,0)
1307 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1528 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1308 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1529 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1309#endif 1530#endif
… …
1315transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1536transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316{ 1537{
1317 dSTACKLEVEL; 1538 dSTACKLEVEL;
1318 1539
1319 /* sometimes transfer is only called to set idle_sp */ 1540 /* sometimes transfer is only called to set idle_sp */
1320 if (expect_false (!next)) 1541 if (expect_false (!prev))
1321 { 1542 {
1322 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1543 cctx_current->idle_sp = STACKLEVEL;
1323 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1544 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324 } 1545 }
1325 else if (expect_true (prev != next)) 1546 else if (expect_true (prev != next))
1326 { 1547 {
1327 coro_cctx *prev__cctx; 1548 coro_cctx *cctx_prev;
1328 1549
1329 if (expect_false (prev->flags & CF_NEW)) 1550 if (expect_false (prev->flags & CF_NEW))
1330 { 1551 {
1331 /* create a new empty/source context */ 1552 /* create a new empty/source context */
1332 prev->cctx = cctx_new_empty ();
1333 prev->flags &= ~CF_NEW; 1553 prev->flags &= ~CF_NEW;
1334 prev->flags |= CF_RUNNING; 1554 prev->flags |= CF_RUNNING;
1335 } 1555 }
1336 1556
1337 prev->flags &= ~CF_RUNNING; 1557 prev->flags &= ~CF_RUNNING;
… …
1343 if (expect_false (next->flags & CF_NEW)) 1563 if (expect_false (next->flags & CF_NEW))
1344 { 1564 {
1345 /* need to start coroutine */ 1565 /* need to start coroutine */
1346 next->flags &= ~CF_NEW; 1566 next->flags &= ~CF_NEW;
1347 /* setup coroutine call */ 1567 /* setup coroutine call */
1348 coro_setup (aTHX_ next); 1568 init_perl (aTHX_ next);
1349 } 1569 }
1350 else 1570 else
1351 load_perl (aTHX_ next); 1571 load_perl (aTHX_ next);
1352 1572
1353 prev__cctx = prev->cctx;
1354
1355 /* possibly untie and reuse the cctx */ 1573 /* possibly untie and reuse the cctx */
1356 if (expect_true ( 1574 if (expect_true (
1357 prev__cctx->idle_sp == (void *)stacklevel 1575 cctx_current->idle_sp == STACKLEVEL
1358 && !(prev__cctx->flags & CC_TRACE) 1576 && !(cctx_current->flags & CC_TRACE)
1359 && !force_cctx 1577 && !force_cctx
1360 )) 1578 ))
1361 { 1579 {
1362 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1580 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1581 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364 1582
1365 prev->cctx = 0;
1366
1367 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ 1583 /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */
1368 /* without this the next cctx_get might destroy the prev__cctx while still in use */ 1584 /* without this the next cctx_get might destroy the running cctx while still in use */
1369 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1585 if (expect_false (CCTX_EXPIRED (cctx_current)))
1370 if (!next->cctx) 1586 if (expect_true (!next->cctx))
1371 next->cctx = cctx_get (aTHX); 1587 next->cctx = cctx_get (aTHX);
1372 1588
1373 cctx_put (prev__cctx); 1589 cctx_put (cctx_current);
1374 } 1590 }
1591 else
1592 prev->cctx = cctx_current;
1375 1593
1376 ++next->usecount; 1594 ++next->usecount;
1377 1595
1378 if (expect_true (!next->cctx)) 1596 cctx_prev = cctx_current;
1379 next->cctx = cctx_get (aTHX); 1597 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380 1598
1381 if (expect_false (prev__cctx != next->cctx)) 1599 next->cctx = 0;
1600
1601 if (expect_false (cctx_prev != cctx_current))
1382 { 1602 {
1383 prev__cctx->top_env = PL_top_env; 1603 cctx_prev->top_env = PL_top_env;
1384 PL_top_env = next->cctx->top_env; 1604 PL_top_env = cctx_current->top_env;
1385 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1605 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386 } 1606 }
1387 1607
1388 transfer_tail (aTHX); 1608 transfer_tail (aTHX);
1389 } 1609 }
1390} 1610}
… …
1398coro_state_destroy (pTHX_ struct coro *coro) 1618coro_state_destroy (pTHX_ struct coro *coro)
1399{ 1619{
1400 if (coro->flags & CF_DESTROYED) 1620 if (coro->flags & CF_DESTROYED)
1401 return 0; 1621 return 0;
1402 1622
1403 if (coro->on_destroy) 1623 if (coro->on_destroy && !PL_dirty)
1404 coro->on_destroy (aTHX_ coro); 1624 coro->on_destroy (aTHX_ coro);
1405 1625
1406 coro->flags |= CF_DESTROYED; 1626 coro->flags |= CF_DESTROYED;
1407 1627
1408 if (coro->flags & CF_READY) 1628 if (coro->flags & CF_READY)
… …
1412 --coro_nready; 1632 --coro_nready;
1413 } 1633 }
1414 else 1634 else
1415 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1635 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1416 1636
1417 if (coro->mainstack && coro->mainstack != main_mainstack) 1637 if (coro->mainstack
1418 { 1638 && coro->mainstack != main_mainstack
1419 struct coro temp; 1639 && coro->slot
1420 1640 && !PL_dirty)
1421 assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING)));
1422
1423 save_perl (aTHX_ &temp);
1424 load_perl (aTHX_ coro); 1641 destroy_perl (aTHX_ coro);
1425
1426 coro_destruct (aTHX_ coro);
1427
1428 load_perl (aTHX_ &temp);
1429
1430 coro->slot = 0;
1431 }
1432
1433 cctx_destroy (coro->cctx);
1434 SvREFCNT_dec (coro->args);
1435 1642
1436 if (coro->next) coro->next->prev = coro->prev; 1643 if (coro->next) coro->next->prev = coro->prev;
1437 if (coro->prev) coro->prev->next = coro->next; 1644 if (coro->prev) coro->prev->next = coro->next;
1438 if (coro == coro_first) coro_first = coro->next; 1645 if (coro == coro_first) coro_first = coro->next;
1646
1647 cctx_destroy (coro->cctx);
1648 SvREFCNT_dec (coro->startcv);
1649 SvREFCNT_dec (coro->args);
1650 SvREFCNT_dec (coro->swap_sv);
1651 SvREFCNT_dec (CORO_THROW);
1439 1652
1440 return 1; 1653 return 1;
1441} 1654}
1442 1655
1443static int 1656static int
… …
1498/** Coro ********************************************************************/ 1711/** Coro ********************************************************************/
1499 1712
1500INLINE void 1713INLINE void
1501coro_enq (pTHX_ struct coro *coro) 1714coro_enq (pTHX_ struct coro *coro)
1502{ 1715{
1503 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1716 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1504}
1505 1717
1506INLINE SV * 1718 SvREFCNT_inc_NN (coro->hv);
1719
1720 coro->next_ready = 0;
1721 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1722 ready [1] = coro;
1723}
1724
1725INLINE struct coro *
1507coro_deq (pTHX) 1726coro_deq (pTHX)
1508{ 1727{
1509 int prio; 1728 int prio;
1510 1729
1511 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1730 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1512 if (AvFILLp (coro_ready [prio]) >= 0) 1731 {
1513 return av_shift (coro_ready [prio]); 1732 struct coro **ready = coro_ready [prio];
1733
1734 if (ready [0])
1735 {
1736 struct coro *coro = ready [0];
1737 ready [0] = coro->next_ready;
1738 return coro;
1739 }
1740 }
1514 1741
1515 return 0; 1742 return 0;
1743}
1744
1745static void
1746invoke_sv_ready_hook_helper (void)
1747{
1748 dTHX;
1749 dSP;
1750
1751 ENTER;
1752 SAVETMPS;
1753
1754 PUSHMARK (SP);
1755 PUTBACK;
1756 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1757
1758 FREETMPS;
1759 LEAVE;
1516} 1760}
1517 1761
1518static int 1762static int
1519api_ready (pTHX_ SV *coro_sv) 1763api_ready (pTHX_ SV *coro_sv)
1520{ 1764{
1521 struct coro *coro;
1522 SV *sv_hook;
1523 void (*xs_hook)(void);
1524
1525 if (SvROK (coro_sv))
1526 coro_sv = SvRV (coro_sv);
1527
1528 coro = SvSTATE (coro_sv); 1765 struct coro *coro = SvSTATE (coro_sv);
1529 1766
1530 if (coro->flags & CF_READY) 1767 if (coro->flags & CF_READY)
1531 return 0; 1768 return 0;
1532 1769
1533 coro->flags |= CF_READY; 1770 coro->flags |= CF_READY;
1534 1771
1535 sv_hook = coro_nready ? 0 : coro_readyhook;
1536 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1537
1538 coro_enq (aTHX_ coro); 1772 coro_enq (aTHX_ coro);
1539 ++coro_nready;
1540 1773
1541 if (sv_hook) 1774 if (!coro_nready++)
1542 { 1775 if (coroapi.readyhook)
1543 dSP; 1776 coroapi.readyhook ();
1544
1545 ENTER;
1546 SAVETMPS;
1547
1548 PUSHMARK (SP);
1549 PUTBACK;
1550 call_sv (sv_hook, G_VOID | G_DISCARD);
1551
1552 FREETMPS;
1553 LEAVE;
1554 }
1555
1556 if (xs_hook)
1557 xs_hook ();
1558 1777
1559 return 1; 1778 return 1;
1560} 1779}
1561 1780
1562static int 1781static int
1563api_is_ready (pTHX_ SV *coro_sv) 1782api_is_ready (pTHX_ SV *coro_sv)
1564{ 1783{
1565 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1784 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566} 1785}
1567 1786
1787/* expects to own a reference to next->hv */
1568INLINE void 1788INLINE void
1569prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1789prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1570{ 1790{
1571 SV *prev_sv, *next_sv;
1572
1573 for (;;)
1574 {
1575 next_sv = coro_deq (aTHX);
1576
1577 /* nothing to schedule: call the idle handler */
1578 if (expect_false (!next_sv))
1579 {
1580 dSP;
1581
1582 ENTER;
1583 SAVETMPS;
1584
1585 PUSHMARK (SP);
1586 PUTBACK;
1587 call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD);
1588
1589 FREETMPS;
1590 LEAVE;
1591 continue;
1592 }
1593
1594 ta->next = SvSTATE_hv (next_sv);
1595
1596 /* cannot transfer to destroyed coros, skip and look for next */
1597 if (expect_false (ta->next->flags & CF_DESTROYED))
1598 {
1599 SvREFCNT_dec (next_sv);
1600 /* coro_nready has already been taken care of by destroy */
1601 continue;
1602 }
1603
1604 --coro_nready;
1605 break;
1606 }
1607
1608 /* free this only after the transfer */
1609 prev_sv = SvRV (coro_current); 1791 SV *prev_sv = SvRV (coro_current);
1792
1610 ta->prev = SvSTATE_hv (prev_sv); 1793 ta->prev = SvSTATE_hv (prev_sv);
1794 ta->next = next;
1795
1611 TRANSFER_CHECK (*ta); 1796 TRANSFER_CHECK (*ta);
1612 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1797
1613 ta->next->flags &= ~CF_READY;
1614 SvRV_set (coro_current, next_sv); 1798 SvRV_set (coro_current, (SV *)next->hv);
1615 1799
1616 free_coro_mortal (aTHX); 1800 free_coro_mortal (aTHX);
1617 coro_mortal = prev_sv; 1801 coro_mortal = prev_sv;
1618} 1802}
1619 1803
1804static void
1805prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1806{
1807 for (;;)
1808 {
1809 struct coro *next = coro_deq (aTHX);
1810
1811 if (expect_true (next))
1812 {
1813 /* cannot transfer to destroyed coros, skip and look for next */
1814 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1815 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1816 else
1817 {
1818 next->flags &= ~CF_READY;
1819 --coro_nready;
1820
1821 prepare_schedule_to (aTHX_ ta, next);
1822 break;
1823 }
1824 }
1825 else
1826 {
1827 /* nothing to schedule: call the idle handler */
1828 if (SvROK (sv_idle)
1829 && SvOBJECT (SvRV (sv_idle)))
1830 {
1831 if (SvRV (sv_idle) == SvRV (coro_current))
1832 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1833
1834 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1835 api_ready (aTHX_ SvRV (sv_idle));
1836 --coro_nready;
1837 }
1838 else
1839 {
1840 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1841 dSP;
1842
1843 ENTER;
1844 SAVETMPS;
1845
1846 PUSHMARK (SP);
1847 PUTBACK;
1848 call_sv (sv_idle, G_VOID | G_DISCARD);
1849
1850 FREETMPS;
1851 LEAVE;
1852 }
1853 }
1854 }
1855}
1856
1620INLINE void 1857INLINE void
1621prepare_cede (pTHX_ struct coro_transfer_args *ta) 1858prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622{ 1859{
1623 api_ready (aTHX_ coro_current); 1860 api_ready (aTHX_ coro_current);
1624 prepare_schedule (aTHX_ ta); 1861 prepare_schedule (aTHX_ ta);
… …
1643{ 1880{
1644 struct coro_transfer_args ta; 1881 struct coro_transfer_args ta;
1645 1882
1646 prepare_schedule (aTHX_ &ta); 1883 prepare_schedule (aTHX_ &ta);
1647 TRANSFER (ta, 1); 1884 TRANSFER (ta, 1);
1885}
1886
1887static void
1888api_schedule_to (pTHX_ SV *coro_sv)
1889{
1890 struct coro_transfer_args ta;
1891 struct coro *next = SvSTATE (coro_sv);
1892
1893 SvREFCNT_inc_NN (coro_sv);
1894 prepare_schedule_to (aTHX_ &ta, next);
1648} 1895}
1649 1896
1650static int 1897static int
1651api_cede (pTHX) 1898api_cede (pTHX)
1652{ 1899{
… …
1681static void 1928static void
1682api_trace (pTHX_ SV *coro_sv, int flags) 1929api_trace (pTHX_ SV *coro_sv, int flags)
1683{ 1930{
1684 struct coro *coro = SvSTATE (coro_sv); 1931 struct coro *coro = SvSTATE (coro_sv);
1685 1932
1933 if (coro->flags & CF_RUNNING)
1934 croak ("cannot enable tracing on a running coroutine, caught");
1935
1686 if (flags & CC_TRACE) 1936 if (flags & CC_TRACE)
1687 { 1937 {
1688 if (!coro->cctx) 1938 if (!coro->cctx)
1689 coro->cctx = cctx_new_run (); 1939 coro->cctx = cctx_new_run ();
1690 else if (!(coro->cctx->flags & CC_TRACE)) 1940 else if (!(coro->cctx->flags & CC_TRACE))
1691 croak ("cannot enable tracing on coroutine with custom stack,"); 1941 croak ("cannot enable tracing on coroutine with custom stack, caught");
1692 1942
1693 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1943 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1694 } 1944 }
1695 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1945 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1696 { 1946 {
… …
1699 if (coro->flags & CF_RUNNING) 1949 if (coro->flags & CF_RUNNING)
1700 PL_runops = RUNOPS_DEFAULT; 1950 PL_runops = RUNOPS_DEFAULT;
1701 else 1951 else
1702 coro->slot->runops = RUNOPS_DEFAULT; 1952 coro->slot->runops = RUNOPS_DEFAULT;
1703 } 1953 }
1954}
1955
1956static void
1957coro_call_on_destroy (pTHX_ struct coro *coro)
1958{
1959 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1960 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1961
1962 if (on_destroyp)
1963 {
1964 AV *on_destroy = (AV *)SvRV (*on_destroyp);
1965
1966 while (AvFILLp (on_destroy) >= 0)
1967 {
1968 dSP; /* don't disturb outer sp */
1969 SV *cb = av_pop (on_destroy);
1970
1971 PUSHMARK (SP);
1972
1973 if (statusp)
1974 {
1975 int i;
1976 AV *status = (AV *)SvRV (*statusp);
1977 EXTEND (SP, AvFILLp (status) + 1);
1978
1979 for (i = 0; i <= AvFILLp (status); ++i)
1980 PUSHs (AvARRAY (status)[i]);
1981 }
1982
1983 PUTBACK;
1984 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
1985 }
1986 }
1987}
1988
1989static void
1990slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1991{
1992 int i;
1993 HV *hv = (HV *)SvRV (coro_current);
1994 AV *av = newAV ();
1995
1996 /* items are actually not so common, so optimise for this case */
1997 if (items)
1998 {
1999 av_extend (av, items - 1);
2000
2001 for (i = 0; i < items; ++i)
2002 av_push (av, SvREFCNT_inc_NN (arg [i]));
2003 }
2004
2005 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2006
2007 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
2008 api_ready (aTHX_ sv_manager);
2009
2010 frame->prepare = prepare_schedule;
2011 frame->check = slf_check_repeat;
2012
2013 /* as a minor optimisation, we could unwind all stacks here */
2014 /* but that puts extra pressure on pp_slf, and is not worth much */
2015 /*coro_unwind_stacks (aTHX);*/
2016}
2017
2018/*****************************************************************************/
2019/* async pool handler */
2020
2021static int
2022slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2023{
2024 HV *hv = (HV *)SvRV (coro_current);
2025 struct coro *coro = (struct coro *)frame->data;
2026
2027 if (!coro->invoke_cb)
2028 return 1; /* loop till we have invoke */
2029 else
2030 {
2031 hv_store (hv, "desc", sizeof ("desc") - 1,
2032 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2033
2034 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2035
2036 {
2037 dSP;
2038 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2039 PUTBACK;
2040 }
2041
2042 SvREFCNT_dec (GvAV (PL_defgv));
2043 GvAV (PL_defgv) = coro->invoke_av;
2044 coro->invoke_av = 0;
2045
2046 return 0;
2047 }
2048}
2049
2050static void
2051slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2052{
2053 HV *hv = (HV *)SvRV (coro_current);
2054 struct coro *coro = SvSTATE_hv ((SV *)hv);
2055
2056 if (expect_true (coro->saved_deffh))
2057 {
2058 /* subsequent iteration */
2059 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2060 coro->saved_deffh = 0;
2061
2062 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2063 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2064 {
2065 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
2066 coro->invoke_av = newAV ();
2067
2068 frame->prepare = prepare_nop;
2069 }
2070 else
2071 {
2072 av_clear (GvAV (PL_defgv));
2073 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2074
2075 coro->prio = 0;
2076
2077 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2078 api_trace (aTHX_ coro_current, 0);
2079
2080 frame->prepare = prepare_schedule;
2081 av_push (av_async_pool, SvREFCNT_inc (hv));
2082 }
2083 }
2084 else
2085 {
2086 /* first iteration, simply fall through */
2087 frame->prepare = prepare_nop;
2088 }
2089
2090 frame->check = slf_check_pool_handler;
2091 frame->data = (void *)coro;
2092}
2093
2094/*****************************************************************************/
2095/* rouse callback */
2096
2097#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
2098
2099static void
2100coro_rouse_callback (pTHX_ CV *cv)
2101{
2102 dXSARGS;
2103 SV *data = (SV *)S_GENSUB_ARG;
2104
2105 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2106 {
2107 /* first call, set args */
2108 SV *coro = SvRV (data);
2109 AV *av = newAV ();
2110
2111 SvRV_set (data, (SV *)av);
2112
2113 /* better take a full copy of the arguments */
2114 while (items--)
2115 av_store (av, items, newSVsv (ST (items)));
2116
2117 api_ready (aTHX_ coro);
2118 SvREFCNT_dec (coro);
2119 }
2120
2121 XSRETURN_EMPTY;
2122}
2123
2124static int
2125slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2126{
2127 SV *data = (SV *)frame->data;
2128
2129 if (CORO_THROW)
2130 return 0;
2131
2132 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2133 return 1;
2134
2135 /* now push all results on the stack */
2136 {
2137 dSP;
2138 AV *av = (AV *)SvRV (data);
2139 int i;
2140
2141 EXTEND (SP, AvFILLp (av) + 1);
2142 for (i = 0; i <= AvFILLp (av); ++i)
2143 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2144
2145 /* we have stolen the elements, so set length to zero and free */
2146 AvFILLp (av) = -1;
2147 av_undef (av);
2148
2149 PUTBACK;
2150 }
2151
2152 return 0;
2153}
2154
2155static void
2156slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2157{
2158 SV *cb;
2159
2160 if (items)
2161 cb = arg [0];
2162 else
2163 {
2164 struct coro *coro = SvSTATE_current;
2165
2166 if (!coro->rouse_cb)
2167 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2168
2169 cb = sv_2mortal (coro->rouse_cb);
2170 coro->rouse_cb = 0;
2171 }
2172
2173 if (!SvROK (cb)
2174 || SvTYPE (SvRV (cb)) != SVt_PVCV
2175 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2176 croak ("Coro::rouse_wait called with illegal callback argument,");
2177
2178 {
2179 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2180 SV *data = (SV *)S_GENSUB_ARG;
2181
2182 frame->data = (void *)data;
2183 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2184 frame->check = slf_check_rouse_wait;
2185 }
2186}
2187
2188static SV *
2189coro_new_rouse_cb (pTHX)
2190{
2191 HV *hv = (HV *)SvRV (coro_current);
2192 struct coro *coro = SvSTATE_hv (hv);
2193 SV *data = newRV_inc ((SV *)hv);
2194 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2195
2196 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2197 SvREFCNT_dec (data); /* magicext increases the refcount */
2198
2199 SvREFCNT_dec (coro->rouse_cb);
2200 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2201
2202 return cb;
1704} 2203}
1705 2204
1706/*****************************************************************************/ 2205/*****************************************************************************/
1707/* schedule-like-function opcode (SLF) */ 2206/* schedule-like-function opcode (SLF) */
1708 2207
… …
1755static void 2254static void
1756slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2255slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757{ 2256{
1758 frame->prepare = prepare_schedule; 2257 frame->prepare = prepare_schedule;
1759 frame->check = slf_check_nop; 2258 frame->check = slf_check_nop;
2259}
2260
2261static void
2262slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2263{
2264 struct coro *next = (struct coro *)slf_frame.data;
2265
2266 SvREFCNT_inc_NN (next->hv);
2267 prepare_schedule_to (aTHX_ ta, next);
2268}
2269
2270static void
2271slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2272{
2273 if (!items)
2274 croak ("Coro::schedule_to expects a coroutine argument, caught");
2275
2276 frame->data = (void *)SvSTATE (arg [0]);
2277 frame->prepare = slf_prepare_schedule_to;
2278 frame->check = slf_check_nop;
2279}
2280
2281static void
2282slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2283{
2284 api_ready (aTHX_ SvRV (coro_current));
2285
2286 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760} 2287}
1761 2288
1762static void 2289static void
1763slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2290slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764{ 2291{
… …
1835 } 2362 }
1836 while (slf_frame.check (aTHX_ &slf_frame)); 2363 while (slf_frame.check (aTHX_ &slf_frame));
1837 2364
1838 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2365 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839 2366
2367 /* exception handling */
2368 if (expect_false (CORO_THROW))
2369 {
2370 SV *exception = sv_2mortal (CORO_THROW);
2371
2372 CORO_THROW = 0;
2373 sv_setsv (ERRSV, exception);
2374 croak (0);
2375 }
2376
1840 /* return value handling - mostly like entersub */ 2377 /* return value handling - mostly like entersub */
1841 /* make sure we put something on the stack in scalar context */ 2378 /* make sure we put something on the stack in scalar context */
1842 if (GIMME_V == G_SCALAR) 2379 if (GIMME_V == G_SCALAR)
1843 { 2380 {
1844 dSP; 2381 dSP;
… …
1850 bot [1] = *sp; 2387 bot [1] = *sp;
1851 2388
1852 SP = bot + 1; 2389 SP = bot + 1;
1853 2390
1854 PUTBACK; 2391 PUTBACK;
1855 }
1856
1857 /* exception handling */
1858 if (expect_false (coro_throw))
1859 {
1860 SV *exception = sv_2mortal (coro_throw);
1861
1862 coro_throw = 0;
1863 sv_setsv (ERRSV, exception);
1864 croak (0);
1865 } 2392 }
1866 2393
1867 return NORMAL; 2394 return NORMAL;
1868} 2395}
1869 2396
… …
1897 if (PL_op->op_flags & OPf_STACKED) 2424 if (PL_op->op_flags & OPf_STACKED)
1898 { 2425 {
1899 if (items > slf_arga) 2426 if (items > slf_arga)
1900 { 2427 {
1901 slf_arga = items; 2428 slf_arga = items;
1902 free (slf_argv); 2429 Safefree (slf_argv);
1903 slf_argv = malloc (slf_arga * sizeof (SV *)); 2430 New (0, slf_argv, slf_arga, SV *);
1904 } 2431 }
1905 2432
1906 slf_argc = items; 2433 slf_argc = items;
1907 2434
1908 for (i = 0; i < items; ++i) 2435 for (i = 0; i < items; ++i)
… …
1910 } 2437 }
1911 else 2438 else
1912 slf_argc = 0; 2439 slf_argc = 0;
1913 2440
1914 PL_op->op_ppaddr = pp_slf; 2441 PL_op->op_ppaddr = pp_slf;
1915 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2442 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916 2443
1917 PL_op = (OP *)&slf_restore; 2444 PL_op = (OP *)&slf_restore;
2445}
2446
2447/*****************************************************************************/
2448/* dynamic wind */
2449
2450static void
2451on_enterleave_call (pTHX_ SV *cb)
2452{
2453 dSP;
2454
2455 PUSHSTACK;
2456
2457 PUSHMARK (SP);
2458 PUTBACK;
2459 call_sv (cb, G_VOID | G_DISCARD);
2460 SPAGAIN;
2461
2462 POPSTACK;
2463}
2464
2465static SV *
2466coro_avp_pop_and_free (pTHX_ AV **avp)
2467{
2468 AV *av = *avp;
2469 SV *res = av_pop (av);
2470
2471 if (AvFILLp (av) < 0)
2472 {
2473 *avp = 0;
2474 SvREFCNT_dec (av);
2475 }
2476
2477 return res;
2478}
2479
2480static void
2481coro_pop_on_enter (pTHX_ void *coro)
2482{
2483 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2484 SvREFCNT_dec (cb);
2485}
2486
2487static void
2488coro_pop_on_leave (pTHX_ void *coro)
2489{
2490 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2491 on_enterleave_call (aTHX_ sv_2mortal (cb));
1918} 2492}
1919 2493
1920/*****************************************************************************/ 2494/*****************************************************************************/
1921/* PerlIO::cede */ 2495/* PerlIO::cede */
1922 2496
… …
1991 PerlIOBuf_get_cnt, 2565 PerlIOBuf_get_cnt,
1992 PerlIOBuf_set_ptrcnt, 2566 PerlIOBuf_set_ptrcnt,
1993}; 2567};
1994 2568
1995/*****************************************************************************/ 2569/*****************************************************************************/
2570/* Coro::Semaphore & Coro::Signal */
2571
2572static SV *
2573coro_waitarray_new (pTHX_ int count)
2574{
2575 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2576 AV *av = newAV ();
2577 SV **ary;
2578
2579 /* unfortunately, building manually saves memory */
2580 Newx (ary, 2, SV *);
2581 AvALLOC (av) = ary;
2582#if PERL_VERSION_ATLEAST (5,10,0)
2583 AvARRAY (av) = ary;
2584#else
2585 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2586 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2587 SvPVX ((SV *)av) = (char *)ary;
2588#endif
2589 AvMAX (av) = 1;
2590 AvFILLp (av) = 0;
2591 ary [0] = newSViv (count);
2592
2593 return newRV_noinc ((SV *)av);
2594}
2595
1996/* Coro::Semaphore */ 2596/* semaphore */
1997 2597
1998static void 2598static void
1999coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2599coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000{ 2600{
2001 SV *count_sv = AvARRAY (av)[0]; 2601 SV *count_sv = AvARRAY (av)[0];
… …
2013 AvARRAY (av)[0] = AvARRAY (av)[1]; 2613 AvARRAY (av)[0] = AvARRAY (av)[1];
2014 AvARRAY (av)[1] = count_sv; 2614 AvARRAY (av)[1] = count_sv;
2015 cb = av_shift (av); 2615 cb = av_shift (av);
2016 2616
2017 if (SvOBJECT (cb)) 2617 if (SvOBJECT (cb))
2618 {
2018 api_ready (aTHX_ cb); 2619 api_ready (aTHX_ cb);
2019 else 2620 --count;
2020 croak ("callbacks not yet supported"); 2621 }
2622 else if (SvTYPE (cb) == SVt_PVCV)
2623 {
2624 dSP;
2625 PUSHMARK (SP);
2626 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2627 PUTBACK;
2628 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2629 }
2021 2630
2022 SvREFCNT_dec (cb); 2631 SvREFCNT_dec (cb);
2023
2024 --count;
2025 } 2632 }
2026} 2633}
2027 2634
2028static void 2635static void
2029coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2636coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2031 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2638 /* call $sem->adjust (0) to possibly wake up some other waiters */
2032 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2639 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033} 2640}
2034 2641
2035static int 2642static int
2036slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2643slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037{ 2644{
2038 AV *av = (AV *)frame->data; 2645 AV *av = (AV *)frame->data;
2039 SV *count_sv = AvARRAY (av)[0]; 2646 SV *count_sv = AvARRAY (av)[0];
2040 2647
2648 /* if we are about to throw, don't actually acquire the lock, just throw */
2649 if (CORO_THROW)
2650 return 0;
2041 if (SvIVX (count_sv) > 0) 2651 else if (SvIVX (count_sv) > 0)
2042 { 2652 {
2043 SvSTATE_current->on_destroy = 0; 2653 SvSTATE_current->on_destroy = 0;
2654
2655 if (acquire)
2044 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2656 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2657 else
2658 coro_semaphore_adjust (aTHX_ av, 0);
2659
2045 return 0; 2660 return 0;
2046 } 2661 }
2047 else 2662 else
2048 { 2663 {
2049 int i; 2664 int i;
… …
2058 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2673 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059 return 1; 2674 return 1;
2060 } 2675 }
2061} 2676}
2062 2677
2063static void 2678static int
2679slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2680{
2681 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2682}
2683
2684static int
2685slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2686{
2687 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2688}
2689
2690static void
2064slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2691slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065{ 2692{
2066 AV *av = (AV *)SvRV (arg [0]); 2693 AV *av = (AV *)SvRV (arg [0]);
2067 2694
2068 if (SvIVX (AvARRAY (av)[0]) > 0) 2695 if (SvIVX (AvARRAY (av)[0]) > 0)
2069 { 2696 {
2070 frame->data = (void *)av; 2697 frame->data = (void *)av;
2071 frame->prepare = prepare_nop; 2698 frame->prepare = prepare_nop;
2072 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073 } 2699 }
2074 else 2700 else
2075 { 2701 {
2076 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2702 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077 2703
2078 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2704 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079 frame->prepare = prepare_schedule; 2705 frame->prepare = prepare_schedule;
2080 2706
2081 /* to avoid race conditions when a woken-up coro gets terminated */ 2707 /* to avoid race conditions when a woken-up coro gets terminated */
2082 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2708 /* we arrange for a temporary on_destroy that calls adjust (0) */
2083 assert (!SvSTATE_current->on_destroy);//D
2084 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2709 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085 } 2710 }
2711}
2086 2712
2713static void
2714slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2715{
2716 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087 frame->check = slf_check_semaphore_down; 2717 frame->check = slf_check_semaphore_down;
2088
2089} 2718}
2090 2719
2091/*****************************************************************************/ 2720static void
2092/* gensub: simple closure generation utility */ 2721slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2093
2094#define GENSUB_ARG CvXSUBANY (cv).any_ptr
2095
2096/* create a closure from XS, returns a code reference */
2097/* the arg can be accessed via GENSUB_ARG from the callback */
2098/* the callback must use dXSARGS/XSRETURN */
2099static SV *
2100gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
2101{ 2722{
2102 CV *cv = (CV *)newSV (0); 2723 if (items >= 2)
2724 {
2725 /* callback form */
2726 AV *av = (AV *)SvRV (arg [0]);
2727 SV *cb_cv = s_get_cv_croak (arg [1]);
2103 2728
2104 sv_upgrade ((SV *)cv, SVt_PVCV); 2729 av_push (av, SvREFCNT_inc_NN (cb_cv));
2105 2730
2106 CvANON_on (cv); 2731 if (SvIVX (AvARRAY (av)[0]) > 0)
2107 CvISXSUB_on (cv); 2732 coro_semaphore_adjust (aTHX_ av, 0);
2108 CvXSUB (cv) = xsub;
2109 GENSUB_ARG = arg;
2110 2733
2111 return newRV_noinc ((SV *)cv); 2734 frame->prepare = prepare_nop;
2735 frame->check = slf_check_nop;
2736 }
2737 else
2738 {
2739 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2740 frame->check = slf_check_semaphore_wait;
2741 }
2742}
2743
2744/* signal */
2745
2746static void
2747coro_signal_wake (pTHX_ AV *av, int count)
2748{
2749 SvIVX (AvARRAY (av)[0]) = 0;
2750
2751 /* now signal count waiters */
2752 while (count > 0 && AvFILLp (av) > 0)
2753 {
2754 SV *cb;
2755
2756 /* swap first two elements so we can shift a waiter */
2757 cb = AvARRAY (av)[0];
2758 AvARRAY (av)[0] = AvARRAY (av)[1];
2759 AvARRAY (av)[1] = cb;
2760
2761 cb = av_shift (av);
2762
2763 if (SvTYPE (cb) == SVt_PVCV)
2764 {
2765 dSP;
2766 PUSHMARK (SP);
2767 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2768 PUTBACK;
2769 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2770 }
2771 else
2772 {
2773 api_ready (aTHX_ cb);
2774 sv_setiv (cb, 0); /* signal waiter */
2775 }
2776
2777 SvREFCNT_dec (cb);
2778
2779 --count;
2780 }
2781}
2782
2783static int
2784slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2785{
2786 /* if we are about to throw, also stop waiting */
2787 return SvROK ((SV *)frame->data) && !CORO_THROW;
2788}
2789
2790static void
2791slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2792{
2793 AV *av = (AV *)SvRV (arg [0]);
2794
2795 if (items >= 2)
2796 {
2797 SV *cb_cv = s_get_cv_croak (arg [1]);
2798 av_push (av, SvREFCNT_inc_NN (cb_cv));
2799
2800 if (SvIVX (AvARRAY (av)[0]))
2801 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2802
2803 frame->prepare = prepare_nop;
2804 frame->check = slf_check_nop;
2805 }
2806 else if (SvIVX (AvARRAY (av)[0]))
2807 {
2808 SvIVX (AvARRAY (av)[0]) = 0;
2809 frame->prepare = prepare_nop;
2810 frame->check = slf_check_nop;
2811 }
2812 else
2813 {
2814 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2815
2816 av_push (av, waiter);
2817
2818 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2819 frame->prepare = prepare_schedule;
2820 frame->check = slf_check_signal_wait;
2821 }
2112} 2822}
2113 2823
2114/*****************************************************************************/ 2824/*****************************************************************************/
2115/* Coro::AIO */ 2825/* Coro::AIO */
2116 2826
… …
2127 2837
2128static void 2838static void
2129coro_aio_callback (pTHX_ CV *cv) 2839coro_aio_callback (pTHX_ CV *cv)
2130{ 2840{
2131 dXSARGS; 2841 dXSARGS;
2132 AV *state = (AV *)GENSUB_ARG; 2842 AV *state = (AV *)S_GENSUB_ARG;
2133 SV *coro = av_pop (state); 2843 SV *coro = av_pop (state);
2134 SV *data_sv = newSV (sizeof (struct io_state)); 2844 SV *data_sv = newSV (sizeof (struct io_state));
2135 2845
2136 av_extend (state, items); 2846 av_extend (state, items - 1);
2137 2847
2138 sv_upgrade (data_sv, SVt_PV); 2848 sv_upgrade (data_sv, SVt_PV);
2139 SvCUR_set (data_sv, sizeof (struct io_state)); 2849 SvCUR_set (data_sv, sizeof (struct io_state));
2140 SvPOK_only (data_sv); 2850 SvPOK_only (data_sv);
2141 2851
… …
2166static int 2876static int
2167slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2877slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168{ 2878{
2169 AV *state = (AV *)frame->data; 2879 AV *state = (AV *)frame->data;
2170 2880
2881 /* if we are about to throw, return early */
2882 /* this does not cancel the aio request, but at least */
2883 /* it quickly returns */
2884 if (CORO_THROW)
2885 return 0;
2886
2171 /* one element that is an RV? repeat! */ 2887 /* one element that is an RV? repeat! */
2172 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2888 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173 return 1; 2889 return 1;
2174 2890
2175 /* restore status */ 2891 /* restore status */
… …
2245 2961
2246 for (i = 0; i < items; ++i) 2962 for (i = 0; i < items; ++i)
2247 PUSHs (arg [i]); 2963 PUSHs (arg [i]);
2248 2964
2249 /* now push the callback closure */ 2965 /* now push the callback closure */
2250 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 2966 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2251 2967
2252 /* now call the AIO function - we assume our request is uncancelable */ 2968 /* now call the AIO function - we assume our request is uncancelable */
2253 PUTBACK; 2969 PUTBACK;
2254 call_sv ((SV *)req, G_VOID | G_DISCARD); 2970 call_sv ((SV *)req, G_VOID | G_DISCARD);
2255 } 2971 }
2256 2972
2257 /* now that the requets is going, we loop toll we have a result */ 2973 /* now that the request is going, we loop till we have a result */
2258 frame->data = (void *)state; 2974 frame->data = (void *)state;
2259 frame->prepare = prepare_schedule; 2975 frame->prepare = prepare_schedule;
2260 frame->check = slf_check_aio_req; 2976 frame->check = slf_check_aio_req;
2261} 2977}
2262 2978
… …
2269 2985
2270 XSRETURN_EMPTY; 2986 XSRETURN_EMPTY;
2271} 2987}
2272 2988
2273/*****************************************************************************/ 2989/*****************************************************************************/
2990
2991#if CORO_CLONE
2992# include "clone.c"
2993#endif
2994
2995/*****************************************************************************/
2996
2997static SV *
2998coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
2999{
3000 SV *coro_sv;
3001 struct coro *coro;
3002 MAGIC *mg;
3003 HV *hv;
3004 SV *cb;
3005 int i;
3006
3007 if (argc > 0)
3008 {
3009 cb = s_get_cv_croak (argv [0]);
3010
3011 if (!is_coro)
3012 {
3013 if (CvISXSUB (cb))
3014 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3015
3016 if (!CvROOT (cb))
3017 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3018 }
3019 }
3020
3021 Newz (0, coro, 1, struct coro);
3022 coro->args = newAV ();
3023 coro->flags = CF_NEW;
3024
3025 if (coro_first) coro_first->prev = coro;
3026 coro->next = coro_first;
3027 coro_first = coro;
3028
3029 coro->hv = hv = newHV ();
3030 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3031 mg->mg_flags |= MGf_DUP;
3032 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3033
3034 if (argc > 0)
3035 {
3036 av_extend (coro->args, argc + is_coro - 1);
3037
3038 if (is_coro)
3039 {
3040 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3041 cb = (SV *)cv_coro_run;
3042 }
3043
3044 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3045
3046 for (i = 1; i < argc; i++)
3047 av_push (coro->args, newSVsv (argv [i]));
3048 }
3049
3050 return coro_sv;
3051}
2274 3052
2275MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3053MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276 3054
2277PROTOTYPES: DISABLE 3055PROTOTYPES: DISABLE
2278 3056
… …
2283 coro_thx = PERL_GET_CONTEXT; 3061 coro_thx = PERL_GET_CONTEXT;
2284# endif 3062# endif
2285#endif 3063#endif
2286 BOOT_PAGESIZE; 3064 BOOT_PAGESIZE;
2287 3065
3066 cctx_current = cctx_new_empty ();
3067
2288 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3068 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3069 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290 3070
2291 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3071 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2292 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3072 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2311 3091
2312 { 3092 {
2313 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3093 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314 3094
2315 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3095 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316 hv_store_ent (PL_custom_op_names, slf, 3096 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317 newSVpv ("coro_slf", 0), 0);
2318 3097
2319 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3098 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320 hv_store_ent (PL_custom_op_descs, slf, 3099 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321 newSVpv ("coro schedule like function", 0), 0);
2322 } 3100 }
2323 3101
2324 coroapi.ver = CORO_API_VERSION; 3102 coroapi.ver = CORO_API_VERSION;
2325 coroapi.rev = CORO_API_REVISION; 3103 coroapi.rev = CORO_API_REVISION;
2326 3104
… …
2338 3116
2339 if (!svp) croak ("Time::HiRes is required"); 3117 if (!svp) croak ("Time::HiRes is required");
2340 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 3118 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2341 3119
2342 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 3120 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3121
3122 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3123 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2343 } 3124 }
2344 3125
2345 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3126 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2346} 3127}
2347 3128
2348SV * 3129SV *
2349new (char *klass, ...) 3130new (SV *klass, ...)
3131 ALIAS:
3132 Coro::new = 1
2350 CODE: 3133 CODE:
2351{ 3134 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2352 struct coro *coro; 3135 OUTPUT:
2353 MAGIC *mg;
2354 HV *hv;
2355 int i;
2356
2357 Newz (0, coro, 1, struct coro);
2358 coro->args = newAV ();
2359 coro->flags = CF_NEW;
2360
2361 if (coro_first) coro_first->prev = coro;
2362 coro->next = coro_first;
2363 coro_first = coro;
2364
2365 coro->hv = hv = newHV ();
2366 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2367 mg->mg_flags |= MGf_DUP;
2368 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2369
2370 av_extend (coro->args, items - 1);
2371 for (i = 1; i < items; i++)
2372 av_push (coro->args, newSVsv (ST (i)));
2373}
2374 OUTPUT:
2375 RETVAL 3136 RETVAL
2376 3137
2377void 3138void
2378transfer (...) 3139transfer (...)
2379 PROTOTYPE: $$ 3140 PROTOTYPE: $$
… …
2390void 3151void
2391_exit (int code) 3152_exit (int code)
2392 PROTOTYPE: $ 3153 PROTOTYPE: $
2393 CODE: 3154 CODE:
2394 _exit (code); 3155 _exit (code);
3156
3157SV *
3158clone (Coro::State coro)
3159 CODE:
3160{
3161#if CORO_CLONE
3162 struct coro *ncoro = coro_clone (aTHX_ coro);
3163 MAGIC *mg;
3164 /* TODO: too much duplication */
3165 ncoro->hv = newHV ();
3166 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3167 mg->mg_flags |= MGf_DUP;
3168 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3169#else
3170 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3171#endif
3172}
3173 OUTPUT:
3174 RETVAL
2395 3175
2396int 3176int
2397cctx_stacksize (int new_stacksize = 0) 3177cctx_stacksize (int new_stacksize = 0)
2398 PROTOTYPE: ;$ 3178 PROTOTYPE: ;$
2399 CODE: 3179 CODE:
… …
2449 eval = 1 3229 eval = 1
2450 CODE: 3230 CODE:
2451{ 3231{
2452 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3232 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2453 { 3233 {
2454 struct coro temp; 3234 struct coro *current = SvSTATE_current;
2455 3235
2456 if (!(coro->flags & CF_RUNNING)) 3236 if (current != coro)
2457 { 3237 {
2458 PUTBACK; 3238 PUTBACK;
2459 save_perl (aTHX_ &temp); 3239 save_perl (aTHX_ current);
2460 load_perl (aTHX_ coro); 3240 load_perl (aTHX_ coro);
3241 SPAGAIN;
2461 } 3242 }
2462 3243
2463 {
2464 dSP;
2465 ENTER;
2466 SAVETMPS;
2467 PUTBACK;
2468 PUSHSTACK; 3244 PUSHSTACK;
3245
2469 PUSHMARK (SP); 3246 PUSHMARK (SP);
3247 PUTBACK;
2470 3248
2471 if (ix) 3249 if (ix)
2472 eval_sv (coderef, 0); 3250 eval_sv (coderef, 0);
2473 else 3251 else
2474 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3252 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2475 3253
2476 POPSTACK; 3254 POPSTACK;
2477 SPAGAIN; 3255 SPAGAIN;
2478 FREETMPS;
2479 LEAVE;
2480 PUTBACK;
2481 }
2482 3256
2483 if (!(coro->flags & CF_RUNNING)) 3257 if (current != coro)
2484 { 3258 {
3259 PUTBACK;
2485 save_perl (aTHX_ coro); 3260 save_perl (aTHX_ coro);
2486 load_perl (aTHX_ &temp); 3261 load_perl (aTHX_ current);
2487 SPAGAIN; 3262 SPAGAIN;
2488 } 3263 }
2489 } 3264 }
2490} 3265}
2491 3266
… …
2495 ALIAS: 3270 ALIAS:
2496 is_ready = CF_READY 3271 is_ready = CF_READY
2497 is_running = CF_RUNNING 3272 is_running = CF_RUNNING
2498 is_new = CF_NEW 3273 is_new = CF_NEW
2499 is_destroyed = CF_DESTROYED 3274 is_destroyed = CF_DESTROYED
3275 is_suspended = CF_SUSPENDED
2500 CODE: 3276 CODE:
2501 RETVAL = boolSV (coro->flags & ix); 3277 RETVAL = boolSV (coro->flags & ix);
2502 OUTPUT: 3278 OUTPUT:
2503 RETVAL 3279 RETVAL
2504 3280
2505void 3281void
2506throw (Coro::State self, SV *throw = &PL_sv_undef) 3282throw (Coro::State self, SV *exception = &PL_sv_undef)
2507 PROTOTYPE: $;$ 3283 PROTOTYPE: $;$
2508 CODE: 3284 CODE:
2509{ 3285{
2510 struct coro *current = SvSTATE_current; 3286 struct coro *current = SvSTATE_current;
2511 SV **throwp = self == current ? &coro_throw : &self->throw; 3287 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2512 SvREFCNT_dec (*throwp); 3288 SvREFCNT_dec (*exceptionp);
2513 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3289 SvGETMAGIC (exception);
3290 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2514} 3291}
2515 3292
2516void 3293void
2517api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3294api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2518 PROTOTYPE: $;$ 3295 PROTOTYPE: $;$
… …
2520 3297
2521SV * 3298SV *
2522has_cctx (Coro::State coro) 3299has_cctx (Coro::State coro)
2523 PROTOTYPE: $ 3300 PROTOTYPE: $
2524 CODE: 3301 CODE:
2525 RETVAL = boolSV (!!coro->cctx); 3302 /* maybe manage the running flag differently */
3303 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2526 OUTPUT: 3304 OUTPUT:
2527 RETVAL 3305 RETVAL
2528 3306
2529int 3307int
2530is_traced (Coro::State coro) 3308is_traced (Coro::State coro)
… …
2550 3328
2551void 3329void
2552force_cctx () 3330force_cctx ()
2553 PROTOTYPE: 3331 PROTOTYPE:
2554 CODE: 3332 CODE:
2555 SvSTATE_current->cctx->idle_sp = 0; 3333 cctx_current->idle_sp = 0;
2556 3334
2557void 3335void
2558swap_defsv (Coro::State self) 3336swap_defsv (Coro::State self)
2559 PROTOTYPE: $ 3337 PROTOTYPE: $
2560 ALIAS: 3338 ALIAS:
… …
2568 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3346 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2569 3347
2570 SV *tmp = *src; *src = *dst; *dst = tmp; 3348 SV *tmp = *src; *src = *dst; *dst = tmp;
2571 } 3349 }
2572 3350
3351void
3352cancel (Coro::State self)
3353 CODE:
3354 coro_state_destroy (aTHX_ self);
3355 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3356
3357
3358SV *
3359enable_times (int enabled = enable_times)
3360 CODE:
3361{
3362 RETVAL = boolSV (enable_times);
3363
3364 if (enabled != enable_times)
3365 {
3366 enable_times = enabled;
3367
3368 coro_times_update ();
3369 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3370 }
3371}
3372 OUTPUT:
3373 RETVAL
3374
3375void
3376times (Coro::State self)
3377 PPCODE:
3378{
3379 struct coro *current = SvSTATE (coro_current);
3380
3381 if (expect_false (current == self))
3382 {
3383 coro_times_update ();
3384 coro_times_add (SvSTATE (coro_current));
3385 }
3386
3387 EXTEND (SP, 2);
3388 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3389 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3390
3391 if (expect_false (current == self))
3392 coro_times_sub (SvSTATE (coro_current));
3393}
3394
3395void
3396swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3397 CODE:
3398{
3399 struct coro *current = SvSTATE_current;
3400
3401 if (current == coro)
3402 SWAP_SVS (current);
3403
3404 if (!coro->swap_sv)
3405 coro->swap_sv = newAV ();
3406
3407 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3408 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3409
3410 if (current == coro)
3411 SWAP_SVS (current);
3412}
3413
2573 3414
2574MODULE = Coro::State PACKAGE = Coro 3415MODULE = Coro::State PACKAGE = Coro
2575 3416
2576BOOT: 3417BOOT:
2577{ 3418{
2578 int i;
2579
2580 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
2581 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3419 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3420 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583 3421 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3422 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3423 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585 SvREADONLY_on (coro_current); 3424 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3425 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3426 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3427 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2586 3428
3429 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3430 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3431 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3432 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3433
2587 coro_stash = gv_stashpv ("Coro", TRUE); 3434 coro_stash = gv_stashpv ("Coro", TRUE);
2588 3435
2589 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3436 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2590 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3437 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2591 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3438 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2592 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3439 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2593 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3440 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2594 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3441 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
2595
2596 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
2597 coro_ready[i] = newAV ();
2598 3442
2599 { 3443 {
2600 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3444 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601 3445
2602 coroapi.schedule = api_schedule; 3446 coroapi.schedule = api_schedule;
3447 coroapi.schedule_to = api_schedule_to;
2603 coroapi.cede = api_cede; 3448 coroapi.cede = api_cede;
2604 coroapi.cede_notself = api_cede_notself; 3449 coroapi.cede_notself = api_cede_notself;
2605 coroapi.ready = api_ready; 3450 coroapi.ready = api_ready;
2606 coroapi.is_ready = api_is_ready; 3451 coroapi.is_ready = api_is_ready;
2607 coroapi.nready = coro_nready; 3452 coroapi.nready = coro_nready;
2608 coroapi.current = coro_current; 3453 coroapi.current = coro_current;
2609 3454
2610 GCoroAPI = &coroapi; 3455 /*GCoroAPI = &coroapi;*/
2611 sv_setiv (sv, (IV)&coroapi); 3456 sv_setiv (sv, (IV)&coroapi);
2612 SvREADONLY_on (sv); 3457 SvREADONLY_on (sv);
2613 } 3458 }
2614} 3459}
3460
3461SV *
3462async (...)
3463 PROTOTYPE: &@
3464 CODE:
3465 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3466 api_ready (aTHX_ RETVAL);
3467 OUTPUT:
3468 RETVAL
3469
3470void
3471terminate (...)
3472 CODE:
3473 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615 3474
2616void 3475void
2617schedule (...) 3476schedule (...)
2618 CODE: 3477 CODE:
2619 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3478 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3479
3480void
3481schedule_to (...)
3482 CODE:
3483 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3484
3485void
3486cede_to (...)
3487 CODE:
3488 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2620 3489
2621void 3490void
2622cede (...) 3491cede (...)
2623 CODE: 3492 CODE:
2624 CORO_EXECUTE_SLF_XS (slf_init_cede); 3493 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2638void 3507void
2639_set_readyhook (SV *hook) 3508_set_readyhook (SV *hook)
2640 PROTOTYPE: $ 3509 PROTOTYPE: $
2641 CODE: 3510 CODE:
2642 SvREFCNT_dec (coro_readyhook); 3511 SvREFCNT_dec (coro_readyhook);
3512 SvGETMAGIC (hook);
3513 if (SvOK (hook))
3514 {
2643 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3515 coro_readyhook = newSVsv (hook);
3516 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3517 }
3518 else
3519 {
3520 coro_readyhook = 0;
3521 CORO_READYHOOK = 0;
3522 }
2644 3523
2645int 3524int
2646prio (Coro::State coro, int newprio = 0) 3525prio (Coro::State coro, int newprio = 0)
2647 PROTOTYPE: $;$ 3526 PROTOTYPE: $;$
2648 ALIAS: 3527 ALIAS:
… …
2654 if (items > 1) 3533 if (items > 1)
2655 { 3534 {
2656 if (ix) 3535 if (ix)
2657 newprio = coro->prio - newprio; 3536 newprio = coro->prio - newprio;
2658 3537
2659 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3538 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2660 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3539 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2661 3540
2662 coro->prio = newprio; 3541 coro->prio = newprio;
2663 } 3542 }
2664} 3543}
2665 OUTPUT: 3544 OUTPUT:
… …
2679 CODE: 3558 CODE:
2680 RETVAL = coro_nready; 3559 RETVAL = coro_nready;
2681 OUTPUT: 3560 OUTPUT:
2682 RETVAL 3561 RETVAL
2683 3562
2684# for async_pool speedup
2685void 3563void
2686_pool_1 (SV *cb) 3564suspend (Coro::State self)
3565 PROTOTYPE: $
2687 CODE: 3566 CODE:
2688{ 3567 self->flags |= CF_SUSPENDED;
2689 HV *hv = (HV *)SvRV (coro_current);
2690 struct coro *coro = SvSTATE_hv ((SV *)hv);
2691 AV *defav = GvAV (PL_defgv);
2692 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2693 AV *invoke_av;
2694 int i, len;
2695 3568
2696 if (!invoke) 3569void
3570resume (Coro::State self)
3571 PROTOTYPE: $
3572 CODE:
3573 self->flags &= ~CF_SUSPENDED;
3574
3575void
3576_pool_handler (...)
3577 CODE:
3578 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3579
3580void
3581async_pool (SV *cv, ...)
3582 PROTOTYPE: &@
3583 PPCODE:
3584{
3585 HV *hv = (HV *)av_pop (av_async_pool);
3586 AV *av = newAV ();
3587 SV *cb = ST (0);
3588 int i;
3589
3590 av_extend (av, items - 2);
3591 for (i = 1; i < items; ++i)
3592 av_push (av, SvREFCNT_inc_NN (ST (i)));
3593
3594 if ((SV *)hv == &PL_sv_undef)
2697 { 3595 {
2698 SV *old = PL_diehook; 3596 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2699 PL_diehook = 0; 3597 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2700 SvREFCNT_dec (old); 3598 SvREFCNT_dec (sv);
2701 croak ("\3async_pool terminate\2\n");
2702 } 3599 }
2703 3600
2704 SvREFCNT_dec (coro->saved_deffh);
2705 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2706
2707 hv_store (hv, "desc", sizeof ("desc") - 1,
2708 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2709
2710 invoke_av = (AV *)SvRV (invoke);
2711 len = av_len (invoke_av);
2712
2713 sv_setsv (cb, AvARRAY (invoke_av)[0]);
2714
2715 if (len > 0)
2716 { 3601 {
2717 av_fill (defav, len - 1); 3602 struct coro *coro = SvSTATE_hv (hv);
2718 for (i = 0; i < len; ++i) 3603
2719 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3604 assert (!coro->invoke_cb);
3605 assert (!coro->invoke_av);
3606 coro->invoke_cb = SvREFCNT_inc (cb);
3607 coro->invoke_av = av;
2720 } 3608 }
3609
3610 api_ready (aTHX_ (SV *)hv);
3611
3612 if (GIMME_V != G_VOID)
3613 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3614 else
3615 SvREFCNT_dec (hv);
2721} 3616}
3617
3618SV *
3619rouse_cb ()
3620 PROTOTYPE:
3621 CODE:
3622 RETVAL = coro_new_rouse_cb (aTHX);
3623 OUTPUT:
3624 RETVAL
2722 3625
2723void 3626void
2724_pool_2 (SV *cb) 3627rouse_wait (...)
3628 PROTOTYPE: ;$
3629 PPCODE:
3630 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3631
3632void
3633on_enter (SV *block)
3634 ALIAS:
3635 on_leave = 1
3636 PROTOTYPE: &
2725 CODE: 3637 CODE:
2726{ 3638{
2727 HV *hv = (HV *)SvRV (coro_current);
2728 struct coro *coro = SvSTATE_hv ((SV *)hv); 3639 struct coro *coro = SvSTATE_current;
3640 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2729 3641
2730 sv_setsv (cb, &PL_sv_undef); 3642 block = s_get_cv_croak (block);
2731 3643
2732 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3644 if (!*avp)
2733 coro->saved_deffh = 0; 3645 *avp = newAV ();
2734 3646
2735 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 3647 av_push (*avp, SvREFCNT_inc (block));
2736 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2737 {
2738 SV *old = PL_diehook;
2739 PL_diehook = 0;
2740 SvREFCNT_dec (old);
2741 croak ("\3async_pool terminate\2\n");
2742 }
2743 3648
2744 av_clear (GvAV (PL_defgv)); 3649 if (!ix)
2745 hv_store (hv, "desc", sizeof ("desc") - 1, 3650 on_enterleave_call (aTHX_ block);
2746 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747 3651
2748 coro->prio = 0; 3652 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2749 3653 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2750 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3654 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2751 api_trace (aTHX_ coro_current, 0);
2752
2753 av_push (av_async_pool, newSVsv (coro_current));
2754} 3655}
2755 3656
2756 3657
2757MODULE = Coro::State PACKAGE = PerlIO::cede 3658MODULE = Coro::State PACKAGE = PerlIO::cede
2758 3659
… …
2761 3662
2762 3663
2763MODULE = Coro::State PACKAGE = Coro::Semaphore 3664MODULE = Coro::State PACKAGE = Coro::Semaphore
2764 3665
2765SV * 3666SV *
2766new (SV *klass, SV *count_ = 0) 3667new (SV *klass, SV *count = 0)
2767 CODE: 3668 CODE:
2768{ 3669{
2769 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3670 int semcnt = 1;
2770 AV *av = newAV ();
2771 SV **ary;
2772 3671
2773 /* unfortunately, building manually saves memory */ 3672 if (count)
2774 Newx (ary, 2, SV *); 3673 {
2775 AvALLOC (av) = ary; 3674 SvGETMAGIC (count);
2776 AvARRAY (av) = ary;
2777 AvMAX (av) = 1;
2778 AvFILLp (av) = 0;
2779 ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1);
2780 3675
2781 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 3676 if (SvOK (count))
3677 semcnt = SvIV (count);
3678 }
3679
3680 RETVAL = sv_bless (
3681 coro_waitarray_new (aTHX_ semcnt),
3682 GvSTASH (CvGV (cv))
3683 );
2782} 3684}
3685 OUTPUT:
3686 RETVAL
3687
3688# helper for Coro::Channel and others
3689SV *
3690_alloc (int count)
3691 CODE:
3692 RETVAL = coro_waitarray_new (aTHX_ count);
2783 OUTPUT: 3693 OUTPUT:
2784 RETVAL 3694 RETVAL
2785 3695
2786SV * 3696SV *
2787count (SV *self) 3697count (SV *self)
… …
2796 adjust = 1 3706 adjust = 1
2797 CODE: 3707 CODE:
2798 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3708 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799 3709
2800void 3710void
2801down (SV *self) 3711down (...)
2802 CODE: 3712 CODE:
2803 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3713 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3714
3715void
3716wait (...)
3717 CODE:
3718 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804 3719
2805void 3720void
2806try (SV *self) 3721try (SV *self)
2807 PPCODE: 3722 PPCODE:
2808{ 3723{
… …
2820 XSRETURN_NO; 3735 XSRETURN_NO;
2821} 3736}
2822 3737
2823void 3738void
2824waiters (SV *self) 3739waiters (SV *self)
2825 CODE: 3740 PPCODE:
2826{ 3741{
2827 AV *av = (AV *)SvRV (self); 3742 AV *av = (AV *)SvRV (self);
3743 int wcount = AvFILLp (av) + 1 - 1;
2828 3744
2829 if (GIMME_V == G_SCALAR) 3745 if (GIMME_V == G_SCALAR)
2830 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3746 XPUSHs (sv_2mortal (newSViv (wcount)));
2831 else 3747 else
2832 { 3748 {
2833 int i; 3749 int i;
2834 EXTEND (SP, AvFILLp (av) + 1 - 1); 3750 EXTEND (SP, wcount);
2835 for (i = 1; i <= AvFILLp (av); ++i) 3751 for (i = 1; i <= wcount; ++i)
2836 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3752 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837 } 3753 }
2838} 3754}
3755
3756MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3757
3758void
3759_may_delete (SV *sem, int count, int extra_refs)
3760 PPCODE:
3761{
3762 AV *av = (AV *)SvRV (sem);
3763
3764 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3765 && AvFILLp (av) == 0 /* no waiters, just count */
3766 && SvIV (AvARRAY (av)[0]) == count)
3767 XSRETURN_YES;
3768
3769 XSRETURN_NO;
3770}
3771
3772MODULE = Coro::State PACKAGE = Coro::Signal
3773
3774SV *
3775new (SV *klass)
3776 CODE:
3777 RETVAL = sv_bless (
3778 coro_waitarray_new (aTHX_ 0),
3779 GvSTASH (CvGV (cv))
3780 );
3781 OUTPUT:
3782 RETVAL
3783
3784void
3785wait (...)
3786 CODE:
3787 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3788
3789void
3790broadcast (SV *self)
3791 CODE:
3792{
3793 AV *av = (AV *)SvRV (self);
3794 coro_signal_wake (aTHX_ av, AvFILLp (av));
3795}
3796
3797void
3798send (SV *self)
3799 CODE:
3800{
3801 AV *av = (AV *)SvRV (self);
3802
3803 if (AvFILLp (av))
3804 coro_signal_wake (aTHX_ av, 1);
3805 else
3806 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3807}
3808
3809IV
3810awaited (SV *self)
3811 CODE:
3812 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3813 OUTPUT:
3814 RETVAL
2839 3815
2840 3816
2841MODULE = Coro::State PACKAGE = Coro::AnyEvent 3817MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842 3818
2843BOOT: 3819BOOT:
… …
2871 3847
2872void 3848void
2873_register (char *target, char *proto, SV *req) 3849_register (char *target, char *proto, SV *req)
2874 CODE: 3850 CODE:
2875{ 3851{
2876 HV *st; 3852 SV *req_cv = s_get_cv_croak (req);
2877 GV *gvp;
2878 CV *req_cv = sv_2cv (req, &st, &gvp, 0);
2879 /* newXSproto doesn't return the CV on 5.8 */ 3853 /* newXSproto doesn't return the CV on 5.8 */
2880 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3854 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881 sv_setpv ((SV *)slf_cv, proto); 3855 sv_setpv ((SV *)slf_cv, proto);
2882 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3856 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883} 3857}
2884 3858
3859MODULE = Coro::State PACKAGE = Coro::Select
3860
3861void
3862patch_pp_sselect ()
3863 CODE:
3864 if (!coro_old_pp_sselect)
3865 {
3866 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3867 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3868 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3869 }
3870
3871void
3872unpatch_pp_sselect ()
3873 CODE:
3874 if (coro_old_pp_sselect)
3875 {
3876 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3877 coro_old_pp_sselect = 0;
3878 }
3879

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