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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 1.392 by root, Fri Apr 29 15:43:27 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
16 21
17#ifdef WIN32 22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
25
26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
18# undef setjmp 28# undef setjmp
19# undef longjmp 29# undef longjmp
20# undef _exit 30# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 31# define setjmp _setjmp /* deep magic */
22#else 32#else
23# include <inttypes.h> /* most portable stdint.h */ 33# include <inttypes.h> /* most portable stdint.h */
24#endif 34#endif
25 35
26#ifdef HAVE_MMAP 36#ifdef HAVE_MMAP
… …
51#endif 61#endif
52 62
53/* the maximum number of idle cctx that will be pooled */ 63/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 64static int cctx_max_idle = 4;
55 65
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && 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 66#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD 67# undef CORO_STACKGUARD
111#endif 68#endif
112 69
113#ifndef CORO_STACKGUARD 70#ifndef CORO_STACKGUARD
… …
120#endif 77#endif
121 78
122/* The next macros try to return the current stack pointer, in an as 79/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 80 * portable way as possible. */
124#if __GNUC__ >= 4 81#if __GNUC__ >= 4
82# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 83# define STACKLEVEL __builtin_frame_address (0)
126#else 84#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 85# define dSTACKLEVEL volatile void *stacklevel
86# define STACKLEVEL ((void *)&stacklevel)
128#endif 87#endif
129 88
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 89#define IN_DESTRUCT PL_dirty
131 90
132#if __GNUC__ >= 3 91#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x) 92# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value)) 93# define expect(expr,value) __builtin_expect ((expr), (value))
135# define INLINE static inline 94# define INLINE static inline
136#else 95#else
137# define attribute(x) 96# define attribute(x)
138# define expect(expr,value) (expr) 97# define expect(expr,value) (expr)
139# define INLINE static 98# define INLINE static
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 102#define expect_true(expr) expect ((expr) != 0, 1)
144 103
145#define NOINLINE attribute ((noinline)) 104#define NOINLINE attribute ((noinline))
146 105
147#include "CoroAPI.h" 106#include "CoroAPI.h"
107#define GCoroAPI (&coroapi) /* very sneaky */
148 108
149#ifdef USE_ITHREADS 109#ifdef USE_ITHREADS
150# if CORO_PTHREAD 110# if CORO_PTHREAD
151static void *coro_thx; 111static void *coro_thx;
152# endif 112# endif
153#endif 113#endif
154 114
115#ifdef __linux
116# include <time.h> /* for timespec */
117# include <syscall.h> /* for SYS_* */
118# ifdef SYS_clock_gettime
119# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
120# define CORO_CLOCK_MONOTONIC 1
121# define CORO_CLOCK_THREAD_CPUTIME_ID 3
122# endif
123#endif
124
155static double (*nvtime)(); /* so why doesn't it take void? */ 125static double (*nvtime)(); /* so why doesn't it take void? */
126static void (*u2time)(pTHX_ UV ret[2]);
156 127
157/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
158#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
159static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
160 131
… …
164static AV *main_mainstack; /* used to differentiate between $main and others */ 135static AV *main_mainstack; /* used to differentiate between $main and others */
165static JMPENV *main_top_env; 136static JMPENV *main_top_env;
166static HV *coro_state_stash, *coro_stash; 137static HV *coro_state_stash, *coro_stash;
167static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 138static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168 139
140static AV *av_destroy; /* destruction queue */
141static SV *sv_manager; /* the manager coro */
142static SV *sv_idle; /* $Coro::idle */
143
169static GV *irsgv; /* $/ */ 144static GV *irsgv; /* $/ */
170static GV *stdoutgv; /* *STDOUT */ 145static GV *stdoutgv; /* *STDOUT */
171static SV *rv_diehook; 146static SV *rv_diehook;
172static SV *rv_warnhook; 147static SV *rv_warnhook;
173static HV *hv_sig; /* %SIG */ 148static HV *hv_sig; /* %SIG */
174 149
175/* async_pool helper stuff */ 150/* async_pool helper stuff */
176static SV *sv_pool_rss; 151static SV *sv_pool_rss;
177static SV *sv_pool_size; 152static SV *sv_pool_size;
153static SV *sv_async_pool_idle; /* description string */
178static AV *av_async_pool; 154static AV *av_async_pool; /* idle pool */
155static SV *sv_Coro; /* class string */
156static CV *cv_pool_handler;
179 157
180/* Coro::AnyEvent */ 158/* Coro::AnyEvent */
181static SV *sv_activity; 159static SV *sv_activity;
160
161/* enable processtime/realtime profiling */
162static char enable_times;
163typedef U32 coro_ts[2];
164static coro_ts time_real, time_cpu;
165static char times_valid;
182 166
183static struct coro_cctx *cctx_first; 167static struct coro_cctx *cctx_first;
184static int cctx_count, cctx_idle; 168static int cctx_count, cctx_idle;
185 169
186enum { 170enum {
… …
212 int valgrind_id; 196 int valgrind_id;
213#endif 197#endif
214 unsigned char flags; 198 unsigned char flags;
215} coro_cctx; 199} coro_cctx;
216 200
201coro_cctx *cctx_current; /* the currently running cctx */
202
203/*****************************************************************************/
204
217enum { 205enum {
218 CF_RUNNING = 0x0001, /* coroutine is running */ 206 CF_RUNNING = 0x0001, /* coroutine is running */
219 CF_READY = 0x0002, /* coroutine is ready */ 207 CF_READY = 0x0002, /* coroutine is ready */
220 CF_NEW = 0x0004, /* has never been switched to */ 208 CF_NEW = 0x0004, /* has never been switched to */
221 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 209 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
210 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
222}; 211};
223 212
224/* the structure where most of the perl state is stored, overlaid on the cxstack */ 213/* the structure where most of the perl state is stored, overlaid on the cxstack */
225typedef struct 214typedef struct
226{ 215{
227 SV *defsv; 216 SV *defsv;
228 AV *defav; 217 AV *defav;
229 SV *errsv; 218 SV *errsv;
230 SV *irsgv; 219 SV *irsgv;
220 HV *hinthv;
231#define VAR(name,type) type name; 221#define VAR(name,type) type name;
232# include "state.h" 222# include "state.h"
233#undef VAR 223#undef VAR
234} perl_slots; 224} perl_slots;
235 225
… …
238/* this is a structure representing a perl-level coroutine */ 228/* this is a structure representing a perl-level coroutine */
239struct coro { 229struct coro {
240 /* the C coroutine allocated to this perl coroutine, if any */ 230 /* the C coroutine allocated to this perl coroutine, if any */
241 coro_cctx *cctx; 231 coro_cctx *cctx;
242 232
233 /* ready queue */
234 struct coro *next_ready;
235
243 /* state data */ 236 /* state data */
244 struct CoroSLF slf_frame; /* saved slf frame */ 237 struct CoroSLF slf_frame; /* saved slf frame */
245 AV *mainstack; 238 AV *mainstack;
246 perl_slots *slot; /* basically the saved sp */ 239 perl_slots *slot; /* basically the saved sp */
247 240
241 CV *startcv; /* the CV to execute */
248 AV *args; /* data associated with this coroutine (initial args) */ 242 AV *args; /* data associated with this coroutine (initial args) */
249 int refcnt; /* coroutines are refcounted, yes */ 243 int refcnt; /* coroutines are refcounted, yes */
250 int flags; /* CF_ flags */ 244 int flags; /* CF_ flags */
251 HV *hv; /* the perl hash associated with this coro, if any */ 245 HV *hv; /* the perl hash associated with this coro, if any */
252 void (*on_destroy)(pTHX_ struct coro *coro); 246 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
253 247
254 /* statistics */ 248 /* statistics */
255 int usecount; /* number of transfers to this coro */ 249 int usecount; /* number of transfers to this coro */
256 250
257 /* coro process data */ 251 /* coro process data */
258 int prio; 252 int prio;
259 SV *throw; /* exception to be thrown */ 253 SV *except; /* exception to be thrown */
254 SV *rouse_cb;
260 255
261 /* async_pool */ 256 /* async_pool */
262 SV *saved_deffh; 257 SV *saved_deffh;
258 SV *invoke_cb;
259 AV *invoke_av;
260
261 /* on_enter/on_leave */
262 AV *on_enter;
263 AV *on_leave;
264
265 /* swap_sv */
266 AV *swap_sv;
267
268 /* times */
269 coro_ts t_cpu, t_real;
263 270
264 /* linked list */ 271 /* linked list */
265 struct coro *next, *prev; 272 struct coro *next, *prev;
266}; 273};
267 274
… …
270 277
271/* the following variables are effectively part of the perl context */ 278/* the following variables are effectively part of the perl context */
272/* and get copied between struct coro and these variables */ 279/* and get copied between struct coro and these variables */
273/* the mainr easonw e don't support windows process emulation */ 280/* the mainr easonw e don't support windows process emulation */
274static struct CoroSLF slf_frame; /* the current slf frame */ 281static struct CoroSLF slf_frame; /* the current slf frame */
275static SV *coro_throw;
276 282
277/** Coro ********************************************************************/ 283/** Coro ********************************************************************/
278 284
279#define PRIO_MAX 3 285#define CORO_PRIO_MAX 3
280#define PRIO_HIGH 1 286#define CORO_PRIO_HIGH 1
281#define PRIO_NORMAL 0 287#define CORO_PRIO_NORMAL 0
282#define PRIO_LOW -1 288#define CORO_PRIO_LOW -1
283#define PRIO_IDLE -3 289#define CORO_PRIO_IDLE -3
284#define PRIO_MIN -4 290#define CORO_PRIO_MIN -4
285 291
286/* for Coro.pm */ 292/* for Coro.pm */
287static SV *coro_current; 293static SV *coro_current;
288static SV *coro_readyhook; 294static SV *coro_readyhook;
289static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 295static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
296static CV *cv_coro_run, *cv_coro_terminate;
290static struct coro *coro_first; 297static struct coro *coro_first;
291#define coro_nready coroapi.nready 298#define coro_nready coroapi.nready
299
300/** Coro::Select ************************************************************/
301
302static OP *(*coro_old_pp_sselect) (pTHX);
303static SV *coro_select_select;
304
305/* horrible hack, but if it works... */
306static OP *
307coro_pp_sselect (pTHX)
308{
309 dSP;
310 PUSHMARK (SP - 4); /* fake argument list */
311 XPUSHs (coro_select_select);
312 PUTBACK;
313
314 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
315 PL_op->op_flags |= OPf_STACKED;
316 PL_op->op_private = 0;
317 return PL_ppaddr [OP_ENTERSUB](aTHX);
318}
319
320/** time stuff **************************************************************/
321
322#ifdef HAS_GETTIMEOFDAY
323
324static void
325coro_u2time (pTHX_ UV ret[2])
326{
327 struct timeval tv;
328 gettimeofday (&tv, 0);
329
330 ret [0] = tv.tv_sec;
331 ret [1] = tv.tv_usec;
332}
333
334static double
335coro_nvtime ()
336{
337 struct timeval tv;
338 gettimeofday (&tv, 0);
339
340 return tv.tv_sec + tv.tv_usec * 1e-6;
341}
342
343static void
344time_init (pTHX)
345{
346 nvtime = coro_nvtime;
347 u2time = coro_u2time;
348}
349
350#else
351
352static void
353time_init (pTHX)
354{
355 SV **svp;
356
357 require_pv ("Time/HiRes.pm");
358
359 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
360
361 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
362 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
363
364 nvtime = INT2PTR (double (*)(), SvIV (*svp));
365
366 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
367 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
368}
369
370#endif
292 371
293/** lowlevel stuff **********************************************************/ 372/** lowlevel stuff **********************************************************/
294 373
295static SV * 374static SV *
296coro_get_sv (pTHX_ const char *name, int create) 375coro_get_sv (pTHX_ const char *name, int create)
… …
320 get_hv (name, create); 399 get_hv (name, create);
321#endif 400#endif
322 return get_hv (name, create); 401 return get_hv (name, create);
323} 402}
324 403
404INLINE void
405coro_times_update ()
406{
407#ifdef coro_clock_gettime
408 struct timespec ts;
409
410 ts.tv_sec = ts.tv_nsec = 0;
411 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
412 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
413
414 ts.tv_sec = ts.tv_nsec = 0;
415 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
416 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
417#else
418 dTHX;
419 UV tv[2];
420
421 u2time (aTHX_ tv);
422 time_real [0] = tv [0];
423 time_real [1] = tv [1] * 1000;
424#endif
425}
426
427INLINE void
428coro_times_add (struct coro *c)
429{
430 c->t_real [1] += time_real [1];
431 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
432 c->t_real [0] += time_real [0];
433
434 c->t_cpu [1] += time_cpu [1];
435 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
436 c->t_cpu [0] += time_cpu [0];
437}
438
439INLINE void
440coro_times_sub (struct coro *c)
441{
442 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
443 c->t_real [1] -= time_real [1];
444 c->t_real [0] -= time_real [0];
445
446 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
447 c->t_cpu [1] -= time_cpu [1];
448 c->t_cpu [0] -= time_cpu [0];
449}
450
451/*****************************************************************************/
452/* magic glue */
453
454#define CORO_MAGIC_type_cv 26
455#define CORO_MAGIC_type_state PERL_MAGIC_ext
456
457#define CORO_MAGIC_NN(sv, type) \
458 (expect_true (SvMAGIC (sv)->mg_type == type) \
459 ? SvMAGIC (sv) \
460 : mg_find (sv, type))
461
462#define CORO_MAGIC(sv, type) \
463 (expect_true (SvMAGIC (sv)) \
464 ? CORO_MAGIC_NN (sv, type) \
465 : 0)
466
467#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
468#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
469
470INLINE struct coro *
471SvSTATE_ (pTHX_ SV *coro)
472{
473 HV *stash;
474 MAGIC *mg;
475
476 if (SvROK (coro))
477 coro = SvRV (coro);
478
479 if (expect_false (SvTYPE (coro) != SVt_PVHV))
480 croak ("Coro::State object required");
481
482 stash = SvSTASH (coro);
483 if (expect_false (stash != coro_stash && stash != coro_state_stash))
484 {
485 /* very slow, but rare, check */
486 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
487 croak ("Coro::State object required");
488 }
489
490 mg = CORO_MAGIC_state (coro);
491 return (struct coro *)mg->mg_ptr;
492}
493
494#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
495
496/* faster than SvSTATE, but expects a coroutine hv */
497#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
498#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
499
500/*****************************************************************************/
501/* padlist management and caching */
502
325static AV * 503static AV *
326coro_clone_padlist (pTHX_ CV *cv) 504coro_derive_padlist (pTHX_ CV *cv)
327{ 505{
328 AV *padlist = CvPADLIST (cv); 506 AV *padlist = CvPADLIST (cv);
329 AV *newpadlist, *newpad; 507 AV *newpadlist, *newpad;
330 508
331 newpadlist = newAV (); 509 newpadlist = newAV ();
… …
336 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 514 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
337#endif 515#endif
338 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 516 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
339 --AvFILLp (padlist); 517 --AvFILLp (padlist);
340 518
341 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 519 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
342 av_store (newpadlist, 1, (SV *)newpad); 520 av_store (newpadlist, 1, (SV *)newpad);
343 521
344 return newpadlist; 522 return newpadlist;
345} 523}
346 524
347static void 525static void
348free_padlist (pTHX_ AV *padlist) 526free_padlist (pTHX_ AV *padlist)
349{ 527{
350 /* may be during global destruction */ 528 /* may be during global destruction */
351 if (SvREFCNT (padlist)) 529 if (!IN_DESTRUCT)
352 { 530 {
353 I32 i = AvFILLp (padlist); 531 I32 i = AvFILLp (padlist);
354 while (i >= 0) 532
533 while (i > 0) /* special-case index 0 */
355 { 534 {
356 SV **svp = av_fetch (padlist, i--, FALSE); 535 /* we try to be extra-careful here */
357 if (svp) 536 AV *av = (AV *)AvARRAY (padlist)[i--];
358 { 537 I32 j = AvFILLp (av);
359 SV *sv; 538
360 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 539 while (j >= 0)
540 SvREFCNT_dec (AvARRAY (av)[j--]);
541
542 AvFILLp (av) = -1;
361 SvREFCNT_dec (sv); 543 SvREFCNT_dec (av);
362
363 SvREFCNT_dec (*svp);
364 }
365 } 544 }
366 545
546 SvREFCNT_dec (AvARRAY (padlist)[0]);
547
548 AvFILLp (padlist) = -1;
367 SvREFCNT_dec ((SV*)padlist); 549 SvREFCNT_dec ((SV*)padlist);
368 } 550 }
369} 551}
370 552
371static int 553static int
372coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 554coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
373{ 555{
374 AV *padlist; 556 AV *padlist;
375 AV *av = (AV *)mg->mg_obj; 557 AV *av = (AV *)mg->mg_obj;
558
559 /* perl manages to free our internal AV and _then_ call us */
560 if (IN_DESTRUCT)
561 return 0;
376 562
377 /* casting is fun. */ 563 /* casting is fun. */
378 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 564 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
379 free_padlist (aTHX_ padlist); 565 free_padlist (aTHX_ padlist);
380 566
381 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 567 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
382 568
383 return 0; 569 return 0;
384} 570}
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 571
389static MGVTBL coro_cv_vtbl = { 572static MGVTBL coro_cv_vtbl = {
390 0, 0, 0, 0, 573 0, 0, 0, 0,
391 coro_cv_free 574 coro_cv_free
392}; 575};
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))
436 576
437/* the next two functions merely cache the padlists */ 577/* the next two functions merely cache the padlists */
438static void 578static void
439get_padlist (pTHX_ CV *cv) 579get_padlist (pTHX_ CV *cv)
440{ 580{
… …
446 else 586 else
447 { 587 {
448#if CORO_PREFER_PERL_FUNCTIONS 588#if CORO_PREFER_PERL_FUNCTIONS
449 /* this is probably cleaner? but also slower! */ 589 /* this is probably cleaner? but also slower! */
450 /* in practise, it seems to be less stable */ 590 /* in practise, it seems to be less stable */
451 CV *cp = Perl_cv_clone (cv); 591 CV *cp = Perl_cv_clone (aTHX_ cv);
452 CvPADLIST (cv) = CvPADLIST (cp); 592 CvPADLIST (cv) = CvPADLIST (cp);
453 CvPADLIST (cp) = 0; 593 CvPADLIST (cp) = 0;
454 SvREFCNT_dec (cp); 594 SvREFCNT_dec (cp);
455#else 595#else
456 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 596 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457#endif 597#endif
458 } 598 }
459} 599}
460 600
461static void 601static void
… …
468 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 608 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
469 609
470 av = (AV *)mg->mg_obj; 610 av = (AV *)mg->mg_obj;
471 611
472 if (expect_false (AvFILLp (av) >= AvMAX (av))) 612 if (expect_false (AvFILLp (av) >= AvMAX (av)))
473 av_extend (av, AvMAX (av) + 1); 613 av_extend (av, AvFILLp (av) + 1);
474 614
475 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 615 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
476} 616}
477 617
478/** load & save, init *******************************************************/ 618/** load & save, init *******************************************************/
619
620/* swap sv heads, at least logically */
621static void
622swap_svs (pTHX_ Coro__State c)
623{
624 int i;
625
626 for (i = 0; i <= AvFILLp (c->swap_sv); )
627 {
628 SV *a = AvARRAY (c->swap_sv)[i++];
629 SV *b = AvARRAY (c->swap_sv)[i++];
630
631 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
632 SV tmp;
633
634 /* swap sv_any */
635 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
636
637 /* swap sv_flags */
638 SvFLAGS (&tmp) = SvFLAGS (a);
639 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
640 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
641
642#if PERL_VERSION_ATLEAST (5,10,0)
643 /* perl 5.10 complicates this _quite_ a bit, but it also is
644 * much faster, so no quarrels here. alternatively, we could
645 * sv_upgrade to avoid this.
646 */
647 {
648 /* swap sv_u */
649 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
650
651 /* if SvANY points to the head, we need to adjust the pointers,
652 * as the pointer for a still points to b, and maybe vice versa.
653 */
654 #define svany_in_head(type) \
655 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
656
657 if (svany_in_head (SvTYPE (a)))
658 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
659
660 if (svany_in_head (SvTYPE (b)))
661 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
662 }
663#endif
664 }
665}
666
667#define SWAP_SVS(coro) \
668 if (expect_false ((coro)->swap_sv)) \
669 swap_svs (aTHX_ (coro))
670
671static void
672on_enterleave_call (pTHX_ SV *cb);
479 673
480static void 674static void
481load_perl (pTHX_ Coro__State c) 675load_perl (pTHX_ Coro__State c)
482{ 676{
483 perl_slots *slot = c->slot; 677 perl_slots *slot = c->slot;
484 c->slot = 0; 678 c->slot = 0;
485 679
486 PL_mainstack = c->mainstack; 680 PL_mainstack = c->mainstack;
487 681
488 GvSV (PL_defgv) = slot->defsv; 682 GvSV (PL_defgv) = slot->defsv;
489 GvAV (PL_defgv) = slot->defav; 683 GvAV (PL_defgv) = slot->defav;
490 GvSV (PL_errgv) = slot->errsv; 684 GvSV (PL_errgv) = slot->errsv;
491 GvSV (irsgv) = slot->irsgv; 685 GvSV (irsgv) = slot->irsgv;
686 GvHV (PL_hintgv) = slot->hinthv;
492 687
493 #define VAR(name,type) PL_ ## name = slot->name; 688 #define VAR(name,type) PL_ ## name = slot->name;
494 # include "state.h" 689 # include "state.h"
495 #undef VAR 690 #undef VAR
496 691
… …
509 704
510 PUTBACK; 705 PUTBACK;
511 } 706 }
512 707
513 slf_frame = c->slf_frame; 708 slf_frame = c->slf_frame;
514 coro_throw = c->throw; 709 CORO_THROW = c->except;
710
711 if (expect_false (enable_times))
712 {
713 if (expect_false (!times_valid))
714 coro_times_update ();
715
716 coro_times_sub (c);
717 }
718
719 if (expect_false (c->on_enter))
720 {
721 int i;
722
723 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
724 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
725 }
726
727 SWAP_SVS (c);
515} 728}
516 729
517static void 730static void
518save_perl (pTHX_ Coro__State c) 731save_perl (pTHX_ Coro__State c)
519{ 732{
520 c->throw = coro_throw; 733 SWAP_SVS (c);
734
735 if (expect_false (c->on_leave))
736 {
737 int i;
738
739 for (i = AvFILLp (c->on_leave); i >= 0; --i)
740 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
741 }
742
743 times_valid = 0;
744
745 if (expect_false (enable_times))
746 {
747 coro_times_update (); times_valid = 1;
748 coro_times_add (c);
749 }
750
751 c->except = CORO_THROW;
521 c->slf_frame = slf_frame; 752 c->slf_frame = slf_frame;
522 753
523 { 754 {
524 dSP; 755 dSP;
525 I32 cxix = cxstack_ix; 756 I32 cxix = cxstack_ix;
… …
537 { 768 {
538 while (expect_true (cxix >= 0)) 769 while (expect_true (cxix >= 0))
539 { 770 {
540 PERL_CONTEXT *cx = &ccstk[cxix--]; 771 PERL_CONTEXT *cx = &ccstk[cxix--];
541 772
542 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 773 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
543 { 774 {
544 CV *cv = cx->blk_sub.cv; 775 CV *cv = cx->blk_sub.cv;
545 776
546 if (expect_true (CvDEPTH (cv))) 777 if (expect_true (CvDEPTH (cv)))
547 { 778 {
… …
571 /* we manually unroll here, as usually 2 slots is enough */ 802 /* we manually unroll here, as usually 2 slots is enough */
572 if (SLOT_COUNT >= 1) CXINC; 803 if (SLOT_COUNT >= 1) CXINC;
573 if (SLOT_COUNT >= 2) CXINC; 804 if (SLOT_COUNT >= 2) CXINC;
574 if (SLOT_COUNT >= 3) CXINC; 805 if (SLOT_COUNT >= 3) CXINC;
575 { 806 {
576 int i; 807 unsigned int i;
577 for (i = 3; i < SLOT_COUNT; ++i) 808 for (i = 3; i < SLOT_COUNT; ++i)
578 CXINC; 809 CXINC;
579 } 810 }
580 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 811 cxstack_ix -= SLOT_COUNT; /* undo allocation */
581 812
582 c->mainstack = PL_mainstack; 813 c->mainstack = PL_mainstack;
583 814
584 { 815 {
585 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 816 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
586 817
587 slot->defav = GvAV (PL_defgv); 818 slot->defav = GvAV (PL_defgv);
588 slot->defsv = DEFSV; 819 slot->defsv = DEFSV;
589 slot->errsv = ERRSV; 820 slot->errsv = ERRSV;
590 slot->irsgv = GvSV (irsgv); 821 slot->irsgv = GvSV (irsgv);
822 slot->hinthv = GvHV (PL_hintgv);
591 823
592 #define VAR(name,type) slot->name = PL_ ## name; 824 #define VAR(name,type) slot->name = PL_ ## name;
593 # include "state.h" 825 # include "state.h"
594 #undef VAR 826 #undef VAR
595 } 827 }
… …
600 * of perl.c:init_stacks, except that it uses less memory 832 * of perl.c:init_stacks, except that it uses less memory
601 * on the (sometimes correct) assumption that coroutines do 833 * on the (sometimes correct) assumption that coroutines do
602 * not usually need a lot of stackspace. 834 * not usually need a lot of stackspace.
603 */ 835 */
604#if CORO_PREFER_PERL_FUNCTIONS 836#if CORO_PREFER_PERL_FUNCTIONS
605# define coro_init_stacks init_stacks 837# define coro_init_stacks(thx) init_stacks ()
606#else 838#else
607static void 839static void
608coro_init_stacks (pTHX) 840coro_init_stacks (pTHX)
609{ 841{
610 PL_curstackinfo = new_stackinfo(32, 8); 842 PL_curstackinfo = new_stackinfo(32, 8);
… …
673#if !PERL_VERSION_ATLEAST (5,10,0) 905#if !PERL_VERSION_ATLEAST (5,10,0)
674 Safefree (PL_retstack); 906 Safefree (PL_retstack);
675#endif 907#endif
676} 908}
677 909
910#define CORO_RSS \
911 rss += sizeof (SYM (curstackinfo)); \
912 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
913 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
914 rss += SYM (tmps_max) * sizeof (SV *); \
915 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
916 rss += SYM (scopestack_max) * sizeof (I32); \
917 rss += SYM (savestack_max) * sizeof (ANY);
918
678static size_t 919static size_t
679coro_rss (pTHX_ struct coro *coro) 920coro_rss (pTHX_ struct coro *coro)
680{ 921{
681 size_t rss = sizeof (*coro); 922 size_t rss = sizeof (*coro);
682 923
683 if (coro->mainstack) 924 if (coro->mainstack)
684 { 925 {
685 perl_slots tmp_slot;
686 perl_slots *slot;
687
688 if (coro->flags & CF_RUNNING) 926 if (coro->flags & CF_RUNNING)
689 { 927 {
690 slot = &tmp_slot; 928 #define SYM(sym) PL_ ## sym
691 929 CORO_RSS;
692 #define VAR(name,type) slot->name = PL_ ## name;
693 # include "state.h"
694 #undef VAR 930 #undef SYM
695 } 931 }
696 else 932 else
697 slot = coro->slot;
698
699 if (slot)
700 { 933 {
701 rss += sizeof (slot->curstackinfo); 934 #define SYM(sym) coro->slot->sym
702 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 935 CORO_RSS;
703 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 936 #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 } 937 }
713 } 938 }
714 939
715 return rss; 940 return rss;
716} 941}
… …
729#endif 954#endif
730 955
731/* 956/*
732 * This overrides the default magic get method of %SIG elements. 957 * 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 958 * 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 959 * and instead of trying to save and restore the hash elements, we just provide
735 * readback here. 960 * 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 */ 961 */
740static int 962static int
741coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 963coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
742{ 964{
743 const char *s = MgPV_nolen_const (mg); 965 const char *s = MgPV_nolen_const (mg);
… …
796 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1018 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
797 1019
798 if (svp) 1020 if (svp)
799 { 1021 {
800 SV *old = *svp; 1022 SV *old = *svp;
801 *svp = newSVsv (sv); 1023 *svp = SvOK (sv) ? newSVsv (sv) : 0;
802 SvREFCNT_dec (old); 1024 SvREFCNT_dec (old);
803 return 0; 1025 return 0;
804 } 1026 }
805 } 1027 }
806 1028
… …
818slf_check_nop (pTHX_ struct CoroSLF *frame) 1040slf_check_nop (pTHX_ struct CoroSLF *frame)
819{ 1041{
820 return 0; 1042 return 0;
821} 1043}
822 1044
823static UNOP coro_setup_op; 1045static int
1046slf_check_repeat (pTHX_ struct CoroSLF *frame)
1047{
1048 return 1;
1049}
1050
1051static UNOP init_perl_op;
824 1052
825static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1053static void NOINLINE /* noinline to keep it out of the transfer fast path */
826coro_setup (pTHX_ struct coro *coro) 1054init_perl (pTHX_ struct coro *coro)
827{ 1055{
828 /* 1056 /*
829 * emulate part of the perl startup here. 1057 * emulate part of the perl startup here.
830 */ 1058 */
831 coro_init_stacks (aTHX); 1059 coro_init_stacks (aTHX);
832 1060
833 PL_runops = RUNOPS_DEFAULT; 1061 PL_runops = RUNOPS_DEFAULT;
834 PL_curcop = &PL_compiling; 1062 PL_curcop = &PL_compiling;
835 PL_in_eval = EVAL_NULL; 1063 PL_in_eval = EVAL_NULL;
836 PL_comppad = 0; 1064 PL_comppad = 0;
1065 PL_comppad_name = 0;
1066 PL_comppad_name_fill = 0;
1067 PL_comppad_name_floor = 0;
837 PL_curpm = 0; 1068 PL_curpm = 0;
838 PL_curpad = 0; 1069 PL_curpad = 0;
839 PL_localizing = 0; 1070 PL_localizing = 0;
840 PL_dirty = 0;
841 PL_restartop = 0; 1071 PL_restartop = 0;
842#if PERL_VERSION_ATLEAST (5,10,0) 1072#if PERL_VERSION_ATLEAST (5,10,0)
843 PL_parser = 0; 1073 PL_parser = 0;
844#endif 1074#endif
1075 PL_hints = 0;
845 1076
846 /* recreate the die/warn hooks */ 1077 /* recreate the die/warn hooks */
847 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1078 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
848 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1079 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
849 1080
850 GvSV (PL_defgv) = newSV (0); 1081 GvSV (PL_defgv) = newSV (0);
851 GvAV (PL_defgv) = coro->args; coro->args = 0; 1082 GvAV (PL_defgv) = coro->args; coro->args = 0;
852 GvSV (PL_errgv) = newSV (0); 1083 GvSV (PL_errgv) = newSV (0);
853 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1084 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1085 GvHV (PL_hintgv) = 0;
854 PL_rs = newSVsv (GvSV (irsgv)); 1086 PL_rs = newSVsv (GvSV (irsgv));
855 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1087 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
856 1088
857 { 1089 {
858 dSP; 1090 dSP;
859 UNOP myop; 1091 UNOP myop;
860 1092
861 Zero (&myop, 1, UNOP); 1093 Zero (&myop, 1, UNOP);
862 myop.op_next = Nullop; 1094 myop.op_next = Nullop;
1095 myop.op_type = OP_ENTERSUB;
863 myop.op_flags = OPf_WANT_VOID; 1096 myop.op_flags = OPf_WANT_VOID;
864 1097
865 PUSHMARK (SP); 1098 PUSHMARK (SP);
866 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1099 PUSHs ((SV *)coro->startcv);
867 PUTBACK; 1100 PUTBACK;
868 PL_op = (OP *)&myop; 1101 PL_op = (OP *)&myop;
869 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1102 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870 SPAGAIN;
871 } 1103 }
872 1104
873 /* this newly created coroutine might be run on an existing cctx which most 1105 /* this newly created coroutine might be run on an existing cctx which most
874 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1106 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875 */ 1107 */
876 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1108 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1109 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878 1110
879 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1111 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
880 coro_setup_op.op_type = OP_CUSTOM; 1112 init_perl_op.op_next = PL_op;
1113 init_perl_op.op_type = OP_ENTERSUB;
881 coro_setup_op.op_ppaddr = pp_slf; 1114 init_perl_op.op_ppaddr = pp_slf;
882 coro_setup_op.op_next = PL_op; 1115 /* no flags etc. required, as an init function won't be called */
883 1116
884 PL_op = (OP *)&coro_setup_op; 1117 PL_op = (OP *)&init_perl_op;
885 1118
886 /* copy throw, in case it was set before coro_setup */ 1119 /* copy throw, in case it was set before init_perl */
887 coro_throw = coro->throw; 1120 CORO_THROW = coro->except;
888}
889 1121
1122 SWAP_SVS (coro);
1123
1124 if (expect_false (enable_times))
1125 {
1126 coro_times_update ();
1127 coro_times_sub (coro);
1128 }
1129}
1130
890static void 1131static void
891coro_destruct (pTHX_ struct coro *coro) 1132coro_unwind_stacks (pTHX)
892{ 1133{
893 if (!IN_DESTRUCT) 1134 if (!IN_DESTRUCT)
894 { 1135 {
895 /* restore all saved variables and stuff */ 1136 /* restore all saved variables and stuff */
896 LEAVE_SCOPE (0); 1137 LEAVE_SCOPE (0);
… …
904 POPSTACK_TO (PL_mainstack); 1145 POPSTACK_TO (PL_mainstack);
905 1146
906 /* unwind main stack */ 1147 /* unwind main stack */
907 dounwind (-1); 1148 dounwind (-1);
908 } 1149 }
1150}
909 1151
910 SvREFCNT_dec (GvSV (PL_defgv)); 1152static void
911 SvREFCNT_dec (GvAV (PL_defgv)); 1153destroy_perl (pTHX_ struct coro *coro)
912 SvREFCNT_dec (GvSV (PL_errgv)); 1154{
913 SvREFCNT_dec (PL_defoutgv); 1155 SV *svf [9];
914 SvREFCNT_dec (PL_rs);
915 SvREFCNT_dec (GvSV (irsgv));
916 1156
917 SvREFCNT_dec (PL_diehook);
918 SvREFCNT_dec (PL_warnhook);
919 1157 {
1158 struct coro *current = SvSTATE_current;
1159
1160 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1161
1162 save_perl (aTHX_ current);
1163 load_perl (aTHX_ coro);
1164
1165 coro_unwind_stacks (aTHX);
1166 coro_destruct_stacks (aTHX);
1167
1168 /* restore swapped sv's */
1169 SWAP_SVS (coro);
1170
1171 // now save some sv's to be free'd later
1172 svf [0] = GvSV (PL_defgv);
1173 svf [1] = (SV *)GvAV (PL_defgv);
1174 svf [2] = GvSV (PL_errgv);
1175 svf [3] = (SV *)PL_defoutgv;
1176 svf [4] = PL_rs;
1177 svf [5] = GvSV (irsgv);
1178 svf [6] = (SV *)GvHV (PL_hintgv);
1179 svf [7] = PL_diehook;
1180 svf [8] = PL_warnhook;
1181 assert (9 == sizeof (svf) / sizeof (*svf));
1182
1183 load_perl (aTHX_ current);
1184 }
1185
1186 {
1187 unsigned int i;
1188
1189 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1190 SvREFCNT_dec (svf [i]);
1191
920 SvREFCNT_dec (coro->saved_deffh); 1192 SvREFCNT_dec (coro->saved_deffh);
921 SvREFCNT_dec (coro_throw); 1193 SvREFCNT_dec (coro->rouse_cb);
922 1194 SvREFCNT_dec (coro->invoke_cb);
923 coro_destruct_stacks (aTHX); 1195 SvREFCNT_dec (coro->invoke_av);
1196 }
924} 1197}
925 1198
926INLINE void 1199INLINE void
927free_coro_mortal (pTHX) 1200free_coro_mortal (pTHX)
928{ 1201{
… …
936static int 1209static int
937runops_trace (pTHX) 1210runops_trace (pTHX)
938{ 1211{
939 COP *oldcop = 0; 1212 COP *oldcop = 0;
940 int oldcxix = -2; 1213 int oldcxix = -2;
941 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942 coro_cctx *cctx = coro->cctx;
943 1214
944 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1215 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945 { 1216 {
946 PERL_ASYNC_CHECK (); 1217 PERL_ASYNC_CHECK ();
947 1218
948 if (cctx->flags & CC_TRACE_ALL) 1219 if (cctx_current->flags & CC_TRACE_ALL)
949 { 1220 {
950 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1221 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
951 { 1222 {
952 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1223 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
953 SV **bot, **top; 1224 SV **bot, **top;
954 AV *av = newAV (); /* return values */ 1225 AV *av = newAV (); /* return values */
955 SV **cb; 1226 SV **cb;
… …
992 1263
993 if (PL_curcop != &PL_compiling) 1264 if (PL_curcop != &PL_compiling)
994 { 1265 {
995 SV **cb; 1266 SV **cb;
996 1267
997 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1268 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
998 { 1269 {
999 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1270 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000 1271
1001 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1272 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002 { 1273 {
1003 runops_proc_t old_runops = PL_runops;
1004 dSP; 1274 dSP;
1005 GV *gv = CvGV (cx->blk_sub.cv); 1275 GV *gv = CvGV (cx->blk_sub.cv);
1006 SV *fullname = sv_2mortal (newSV (0)); 1276 SV *fullname = sv_2mortal (newSV (0));
1007 1277
1008 if (isGV (gv)) 1278 if (isGV (gv))
… …
1013 SAVETMPS; 1283 SAVETMPS;
1014 EXTEND (SP, 3); 1284 EXTEND (SP, 3);
1015 PUSHMARK (SP); 1285 PUSHMARK (SP);
1016 PUSHs (&PL_sv_yes); 1286 PUSHs (&PL_sv_yes);
1017 PUSHs (fullname); 1287 PUSHs (fullname);
1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1288 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019 PUTBACK; 1289 PUTBACK;
1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1290 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); 1291 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022 SPAGAIN; 1292 SPAGAIN;
1023 FREETMPS; 1293 FREETMPS;
… …
1026 } 1296 }
1027 1297
1028 oldcxix = cxstack_ix; 1298 oldcxix = cxstack_ix;
1029 } 1299 }
1030 1300
1031 if (cctx->flags & CC_TRACE_LINE) 1301 if (cctx_current->flags & CC_TRACE_LINE)
1032 { 1302 {
1033 dSP; 1303 dSP;
1034 1304
1035 PL_runops = RUNOPS_DEFAULT; 1305 PL_runops = RUNOPS_DEFAULT;
1036 ENTER; 1306 ENTER;
… …
1055 1325
1056 TAINT_NOT; 1326 TAINT_NOT;
1057 return 0; 1327 return 0;
1058} 1328}
1059 1329
1060static struct coro_cctx *cctx_ssl_cctx;
1061static struct CoroSLF cctx_ssl_frame; 1330static struct CoroSLF cctx_ssl_frame;
1062 1331
1063static void 1332static void
1064slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1333slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065{ 1334{
1066 ta->prev = (struct coro *)cctx_ssl_cctx;
1067 ta->next = 0; 1335 ta->prev = 0;
1068} 1336}
1069 1337
1070static int 1338static int
1071slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1339slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072{ 1340{
1073 *frame = cctx_ssl_frame; 1341 *frame = cctx_ssl_frame;
1074 1342
1075 return 1; /* execute the restored frame - there must be one */ 1343 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076} 1344}
1077 1345
1078/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ 1346/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079static void NOINLINE 1347static void NOINLINE
1080cctx_prepare (pTHX_ coro_cctx *cctx) 1348cctx_prepare (pTHX)
1081{ 1349{
1082 PL_top_env = &PL_start_env; 1350 PL_top_env = &PL_start_env;
1083 1351
1084 if (cctx->flags & CC_TRACE) 1352 if (cctx_current->flags & CC_TRACE)
1085 PL_runops = runops_trace; 1353 PL_runops = runops_trace;
1086 1354
1087 /* we already must be in an SLF call, there is no other valid way 1355 /* we already must be executing an SLF op, there is no other valid way
1088 * that can lead to creation of a new cctx */ 1356 * that can lead to creation of a new cctx */
1089 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1357 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1358 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091 1359
1092 cctx_ssl_cctx = cctx; 1360 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093 cctx_ssl_frame = slf_frame; 1361 cctx_ssl_frame = slf_frame;
1094 1362
1095 slf_frame.prepare = slf_prepare_set_stacklevel; 1363 slf_frame.prepare = slf_prepare_set_stacklevel;
1096 slf_frame.check = slf_check_set_stacklevel; 1364 slf_frame.check = slf_check_set_stacklevel;
1097} 1365}
… …
1120 /* normally we would need to skip the entersub here */ 1388 /* normally we would need to skip the entersub here */
1121 /* not doing so will re-execute it, which is exactly what we want */ 1389 /* not doing so will re-execute it, which is exactly what we want */
1122 /* PL_nop = PL_nop->op_next */ 1390 /* PL_nop = PL_nop->op_next */
1123 1391
1124 /* inject a fake subroutine call to cctx_init */ 1392 /* inject a fake subroutine call to cctx_init */
1125 cctx_prepare (aTHX_ (coro_cctx *)arg); 1393 cctx_prepare (aTHX);
1126 1394
1127 /* cctx_run is the alternative tail of transfer() */ 1395 /* cctx_run is the alternative tail of transfer() */
1128 transfer_tail (aTHX); 1396 transfer_tail (aTHX);
1129 1397
1130 /* somebody or something will hit me for both perl_run and PL_restartop */ 1398 /* somebody or something will hit me for both perl_run and PL_restartop */
1131 PL_restartop = PL_op; 1399 PL_restartop = PL_op;
1132 perl_run (PL_curinterp); 1400 perl_run (PL_curinterp);
1401 /*
1402 * Unfortunately, there is no way to get at the return values of the
1403 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1404 * runtime errors here, as this is just a random interpreter, not a thread.
1405 */
1133 1406
1134 /* 1407 /*
1135 * If perl-run returns we assume exit() was being called or the coro 1408 * If perl-run returns we assume exit() was being called or the coro
1136 * fell off the end, which seems to be the only valid (non-bug) 1409 * fell off the end, which seems to be the only valid (non-bug)
1137 * reason for perl_run to return. We try to exit by jumping to the 1410 * reason for perl_run to return. We try to exit by jumping to the
1138 * bootstrap-time "top" top_env, as we cannot restore the "main" 1411 * bootstrap-time "top" top_env, as we cannot restore the "main"
1139 * coroutine as Coro has no such concept 1412 * coroutine as Coro has no such concept.
1413 * This actually isn't valid with the pthread backend, but OSes requiring
1414 * that backend are too broken to do it in a standards-compliant way.
1140 */ 1415 */
1141 PL_top_env = main_top_env; 1416 PL_top_env = main_top_env;
1142 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1417 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1143 } 1418 }
1144} 1419}
… …
1221cctx_destroy (coro_cctx *cctx) 1496cctx_destroy (coro_cctx *cctx)
1222{ 1497{
1223 if (!cctx) 1498 if (!cctx)
1224 return; 1499 return;
1225 1500
1501 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1502
1226 --cctx_count; 1503 --cctx_count;
1227 coro_destroy (&cctx->cctx); 1504 coro_destroy (&cctx->cctx);
1228 1505
1229 /* coro_transfer creates new, empty cctx's */ 1506 /* coro_transfer creates new, empty cctx's */
1230 if (cctx->sptr) 1507 if (cctx->sptr)
… …
1293 /* TODO: throwing up here is considered harmful */ 1570 /* TODO: throwing up here is considered harmful */
1294 1571
1295 if (expect_true (prev != next)) 1572 if (expect_true (prev != next))
1296 { 1573 {
1297 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1574 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,"); 1575 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1299 1576
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)) 1577 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,"); 1578 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1305 1579
1306#if !PERL_VERSION_ATLEAST (5,10,0) 1580#if !PERL_VERSION_ATLEAST (5,10,0)
1307 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1581 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,"); 1582 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1309#endif 1583#endif
… …
1315transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1589transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316{ 1590{
1317 dSTACKLEVEL; 1591 dSTACKLEVEL;
1318 1592
1319 /* sometimes transfer is only called to set idle_sp */ 1593 /* sometimes transfer is only called to set idle_sp */
1320 if (expect_false (!next)) 1594 if (expect_false (!prev))
1321 { 1595 {
1322 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1596 cctx_current->idle_sp = STACKLEVEL;
1323 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1597 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324 } 1598 }
1325 else if (expect_true (prev != next)) 1599 else if (expect_true (prev != next))
1326 { 1600 {
1327 coro_cctx *prev__cctx; 1601 coro_cctx *cctx_prev;
1328 1602
1329 if (expect_false (prev->flags & CF_NEW)) 1603 if (expect_false (prev->flags & CF_NEW))
1330 { 1604 {
1331 /* create a new empty/source context */ 1605 /* create a new empty/source context */
1332 prev->cctx = cctx_new_empty ();
1333 prev->flags &= ~CF_NEW; 1606 prev->flags &= ~CF_NEW;
1334 prev->flags |= CF_RUNNING; 1607 prev->flags |= CF_RUNNING;
1335 } 1608 }
1336 1609
1337 prev->flags &= ~CF_RUNNING; 1610 prev->flags &= ~CF_RUNNING;
… …
1343 if (expect_false (next->flags & CF_NEW)) 1616 if (expect_false (next->flags & CF_NEW))
1344 { 1617 {
1345 /* need to start coroutine */ 1618 /* need to start coroutine */
1346 next->flags &= ~CF_NEW; 1619 next->flags &= ~CF_NEW;
1347 /* setup coroutine call */ 1620 /* setup coroutine call */
1348 coro_setup (aTHX_ next); 1621 init_perl (aTHX_ next);
1349 } 1622 }
1350 else 1623 else
1351 load_perl (aTHX_ next); 1624 load_perl (aTHX_ next);
1352 1625
1353 prev__cctx = prev->cctx;
1354
1355 /* possibly untie and reuse the cctx */ 1626 /* possibly untie and reuse the cctx */
1356 if (expect_true ( 1627 if (expect_true (
1357 prev__cctx->idle_sp == (void *)stacklevel 1628 cctx_current->idle_sp == STACKLEVEL
1358 && !(prev__cctx->flags & CC_TRACE) 1629 && !(cctx_current->flags & CC_TRACE)
1359 && !force_cctx 1630 && !force_cctx
1360 )) 1631 ))
1361 { 1632 {
1362 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1633 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1634 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364 1635
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 */ 1636 /* 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 */ 1637 /* without this the next cctx_get might destroy the running cctx while still in use */
1369 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1638 if (expect_false (CCTX_EXPIRED (cctx_current)))
1370 if (!next->cctx) 1639 if (expect_true (!next->cctx))
1371 next->cctx = cctx_get (aTHX); 1640 next->cctx = cctx_get (aTHX);
1372 1641
1373 cctx_put (prev__cctx); 1642 cctx_put (cctx_current);
1374 } 1643 }
1644 else
1645 prev->cctx = cctx_current;
1375 1646
1376 ++next->usecount; 1647 ++next->usecount;
1377 1648
1378 if (expect_true (!next->cctx)) 1649 cctx_prev = cctx_current;
1379 next->cctx = cctx_get (aTHX); 1650 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380 1651
1381 if (expect_false (prev__cctx != next->cctx)) 1652 next->cctx = 0;
1653
1654 if (expect_false (cctx_prev != cctx_current))
1382 { 1655 {
1383 prev__cctx->top_env = PL_top_env; 1656 cctx_prev->top_env = PL_top_env;
1384 PL_top_env = next->cctx->top_env; 1657 PL_top_env = cctx_current->top_env;
1385 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1658 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386 } 1659 }
1387 1660
1388 transfer_tail (aTHX); 1661 transfer_tail (aTHX);
1389 } 1662 }
1390} 1663}
… …
1398coro_state_destroy (pTHX_ struct coro *coro) 1671coro_state_destroy (pTHX_ struct coro *coro)
1399{ 1672{
1400 if (coro->flags & CF_DESTROYED) 1673 if (coro->flags & CF_DESTROYED)
1401 return 0; 1674 return 0;
1402 1675
1403 if (coro->on_destroy) 1676 if (coro->on_destroy && !PL_dirty)
1404 coro->on_destroy (aTHX_ coro); 1677 coro->on_destroy (aTHX_ coro);
1405 1678
1406 coro->flags |= CF_DESTROYED; 1679 coro->flags |= CF_DESTROYED;
1407 1680
1408 if (coro->flags & CF_READY) 1681 if (coro->flags & CF_READY)
… …
1412 --coro_nready; 1685 --coro_nready;
1413 } 1686 }
1414 else 1687 else
1415 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1688 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1416 1689
1417 if (coro->mainstack && coro->mainstack != main_mainstack) 1690 if (coro->mainstack
1418 { 1691 && coro->mainstack != main_mainstack
1419 struct coro temp; 1692 && coro->slot
1420 1693 && !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); 1694 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 1695
1436 if (coro->next) coro->next->prev = coro->prev; 1696 if (coro->next) coro->next->prev = coro->prev;
1437 if (coro->prev) coro->prev->next = coro->next; 1697 if (coro->prev) coro->prev->next = coro->next;
1438 if (coro == coro_first) coro_first = coro->next; 1698 if (coro == coro_first) coro_first = coro->next;
1699
1700 cctx_destroy (coro->cctx);
1701 SvREFCNT_dec (coro->startcv);
1702 SvREFCNT_dec (coro->args);
1703 SvREFCNT_dec (coro->swap_sv);
1704 SvREFCNT_dec (CORO_THROW);
1439 1705
1440 return 1; 1706 return 1;
1441} 1707}
1442 1708
1443static int 1709static int
… …
1498/** Coro ********************************************************************/ 1764/** Coro ********************************************************************/
1499 1765
1500INLINE void 1766INLINE void
1501coro_enq (pTHX_ struct coro *coro) 1767coro_enq (pTHX_ struct coro *coro)
1502{ 1768{
1503 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1769 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1504}
1505 1770
1506INLINE SV * 1771 SvREFCNT_inc_NN (coro->hv);
1772
1773 coro->next_ready = 0;
1774 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1775 ready [1] = coro;
1776}
1777
1778INLINE struct coro *
1507coro_deq (pTHX) 1779coro_deq (pTHX)
1508{ 1780{
1509 int prio; 1781 int prio;
1510 1782
1511 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1783 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1512 if (AvFILLp (coro_ready [prio]) >= 0) 1784 {
1513 return av_shift (coro_ready [prio]); 1785 struct coro **ready = coro_ready [prio];
1786
1787 if (ready [0])
1788 {
1789 struct coro *coro = ready [0];
1790 ready [0] = coro->next_ready;
1791 return coro;
1792 }
1793 }
1514 1794
1515 return 0; 1795 return 0;
1796}
1797
1798static void
1799invoke_sv_ready_hook_helper (void)
1800{
1801 dTHX;
1802 dSP;
1803
1804 ENTER;
1805 SAVETMPS;
1806
1807 PUSHMARK (SP);
1808 PUTBACK;
1809 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1810
1811 FREETMPS;
1812 LEAVE;
1516} 1813}
1517 1814
1518static int 1815static int
1519api_ready (pTHX_ SV *coro_sv) 1816api_ready (pTHX_ SV *coro_sv)
1520{ 1817{
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); 1818 struct coro *coro = SvSTATE (coro_sv);
1529 1819
1530 if (coro->flags & CF_READY) 1820 if (coro->flags & CF_READY)
1531 return 0; 1821 return 0;
1532 1822
1533 coro->flags |= CF_READY; 1823 coro->flags |= CF_READY;
1534 1824
1535 sv_hook = coro_nready ? 0 : coro_readyhook;
1536 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1537
1538 coro_enq (aTHX_ coro); 1825 coro_enq (aTHX_ coro);
1539 ++coro_nready;
1540 1826
1541 if (sv_hook) 1827 if (!coro_nready++)
1542 { 1828 if (coroapi.readyhook)
1543 dSP; 1829 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 1830
1559 return 1; 1831 return 1;
1560} 1832}
1561 1833
1562static int 1834static int
1563api_is_ready (pTHX_ SV *coro_sv) 1835api_is_ready (pTHX_ SV *coro_sv)
1564{ 1836{
1565 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1837 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566} 1838}
1567 1839
1840/* expects to own a reference to next->hv */
1568INLINE void 1841INLINE void
1569prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1842prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1570{ 1843{
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); 1844 SV *prev_sv = SvRV (coro_current);
1845
1610 ta->prev = SvSTATE_hv (prev_sv); 1846 ta->prev = SvSTATE_hv (prev_sv);
1847 ta->next = next;
1848
1611 TRANSFER_CHECK (*ta); 1849 TRANSFER_CHECK (*ta);
1612 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1850
1613 ta->next->flags &= ~CF_READY;
1614 SvRV_set (coro_current, next_sv); 1851 SvRV_set (coro_current, (SV *)next->hv);
1615 1852
1616 free_coro_mortal (aTHX); 1853 free_coro_mortal (aTHX);
1617 coro_mortal = prev_sv; 1854 coro_mortal = prev_sv;
1618} 1855}
1619 1856
1857static void
1858prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1859{
1860 for (;;)
1861 {
1862 struct coro *next = coro_deq (aTHX);
1863
1864 if (expect_true (next))
1865 {
1866 /* cannot transfer to destroyed coros, skip and look for next */
1867 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1868 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1869 else
1870 {
1871 next->flags &= ~CF_READY;
1872 --coro_nready;
1873
1874 prepare_schedule_to (aTHX_ ta, next);
1875 break;
1876 }
1877 }
1878 else
1879 {
1880 /* nothing to schedule: call the idle handler */
1881 if (SvROK (sv_idle)
1882 && SvOBJECT (SvRV (sv_idle)))
1883 {
1884 if (SvRV (sv_idle) == SvRV (coro_current))
1885 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1886
1887 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1888 api_ready (aTHX_ SvRV (sv_idle));
1889 --coro_nready;
1890 }
1891 else
1892 {
1893 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1894 dSP;
1895
1896 ENTER;
1897 SAVETMPS;
1898
1899 PUSHMARK (SP);
1900 PUTBACK;
1901 call_sv (sv_idle, G_VOID | G_DISCARD);
1902
1903 FREETMPS;
1904 LEAVE;
1905 }
1906 }
1907 }
1908}
1909
1620INLINE void 1910INLINE void
1621prepare_cede (pTHX_ struct coro_transfer_args *ta) 1911prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622{ 1912{
1623 api_ready (aTHX_ coro_current); 1913 api_ready (aTHX_ coro_current);
1624 prepare_schedule (aTHX_ ta); 1914 prepare_schedule (aTHX_ ta);
… …
1643{ 1933{
1644 struct coro_transfer_args ta; 1934 struct coro_transfer_args ta;
1645 1935
1646 prepare_schedule (aTHX_ &ta); 1936 prepare_schedule (aTHX_ &ta);
1647 TRANSFER (ta, 1); 1937 TRANSFER (ta, 1);
1938}
1939
1940static void
1941api_schedule_to (pTHX_ SV *coro_sv)
1942{
1943 struct coro_transfer_args ta;
1944 struct coro *next = SvSTATE (coro_sv);
1945
1946 SvREFCNT_inc_NN (coro_sv);
1947 prepare_schedule_to (aTHX_ &ta, next);
1648} 1948}
1649 1949
1650static int 1950static int
1651api_cede (pTHX) 1951api_cede (pTHX)
1652{ 1952{
… …
1681static void 1981static void
1682api_trace (pTHX_ SV *coro_sv, int flags) 1982api_trace (pTHX_ SV *coro_sv, int flags)
1683{ 1983{
1684 struct coro *coro = SvSTATE (coro_sv); 1984 struct coro *coro = SvSTATE (coro_sv);
1685 1985
1986 if (coro->flags & CF_RUNNING)
1987 croak ("cannot enable tracing on a running coroutine, caught");
1988
1686 if (flags & CC_TRACE) 1989 if (flags & CC_TRACE)
1687 { 1990 {
1688 if (!coro->cctx) 1991 if (!coro->cctx)
1689 coro->cctx = cctx_new_run (); 1992 coro->cctx = cctx_new_run ();
1690 else if (!(coro->cctx->flags & CC_TRACE)) 1993 else if (!(coro->cctx->flags & CC_TRACE))
1691 croak ("cannot enable tracing on coroutine with custom stack,"); 1994 croak ("cannot enable tracing on coroutine with custom stack, caught");
1692 1995
1693 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1996 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1694 } 1997 }
1695 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1998 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1696 { 1999 {
… …
1699 if (coro->flags & CF_RUNNING) 2002 if (coro->flags & CF_RUNNING)
1700 PL_runops = RUNOPS_DEFAULT; 2003 PL_runops = RUNOPS_DEFAULT;
1701 else 2004 else
1702 coro->slot->runops = RUNOPS_DEFAULT; 2005 coro->slot->runops = RUNOPS_DEFAULT;
1703 } 2006 }
2007}
2008
2009static void
2010coro_call_on_destroy (pTHX_ struct coro *coro)
2011{
2012 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
2013
2014 if (on_destroyp)
2015 {
2016 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2017 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2018 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
2019
2020 while (AvFILLp (on_destroy) >= 0)
2021 {
2022 dSP; /* don't disturb outer sp */
2023 SV *cb = av_pop (on_destroy);
2024
2025 PUSHMARK (SP);
2026
2027 if (statusp)
2028 {
2029 int i;
2030 EXTEND (SP, AvFILLp (status) + 1);
2031
2032 for (i = 0; i <= AvFILLp (status); ++i)
2033 PUSHs (AvARRAY (status)[i]);
2034 }
2035
2036 PUTBACK;
2037 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
2038 }
2039 }
2040}
2041
2042static void
2043coro_set_status (HV *coro_hv, SV **arg, int items)
2044{
2045 AV *av = newAV ();
2046
2047 /* items are actually not so common, so optimise for this case */
2048 if (items)
2049 {
2050 int i;
2051
2052 av_extend (av, items - 1);
2053
2054 for (i = 0; i < items; ++i)
2055 av_push (av, SvREFCNT_inc_NN (arg [i]));
2056 }
2057
2058 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2059}
2060
2061static void
2062slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2063{
2064 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
2065 api_ready (aTHX_ sv_manager);
2066
2067 frame->prepare = prepare_schedule;
2068 frame->check = slf_check_repeat;
2069
2070 /* as a minor optimisation, we could unwind all stacks here */
2071 /* but that puts extra pressure on pp_slf, and is not worth much */
2072 /*coro_unwind_stacks (aTHX);*/
2073}
2074
2075static void
2076slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2077{
2078 HV *coro_hv = (HV *)SvRV (coro_current);
2079
2080 coro_set_status (coro_hv, arg, items);
2081 slf_init_terminate_cancel_common (frame, coro_hv);
2082}
2083
2084static void
2085slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2086{
2087 HV *coro_hv;
2088 struct coro *coro;
2089
2090 if (items <= 0)
2091 croak ("Coro::cancel called without coro object,");
2092
2093 coro = SvSTATE (arg [0]);
2094 coro_hv = coro->hv;
2095
2096 coro_set_status (coro_hv, arg + 1, items - 1);
2097
2098 /* cancelling the current coro is allowed, and equals terminate */
2099 if (coro_hv == (HV *)SvRV (coro_current))
2100 slf_init_terminate_cancel_common (frame, coro_hv);
2101 else
2102 {
2103 /* otherwise we cancel ourselves */
2104 coro_state_destroy (aTHX_ coro);
2105 coro_call_on_destroy (aTHX_ coro);
2106
2107 frame->prepare = prepare_nop;
2108 frame->check = slf_check_nop;
2109 }
2110}
2111
2112/*****************************************************************************/
2113/* async pool handler */
2114
2115static int
2116slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2117{
2118 HV *hv = (HV *)SvRV (coro_current);
2119 struct coro *coro = (struct coro *)frame->data;
2120
2121 if (!coro->invoke_cb)
2122 return 1; /* loop till we have invoke */
2123 else
2124 {
2125 hv_store (hv, "desc", sizeof ("desc") - 1,
2126 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2127
2128 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2129
2130 {
2131 dSP;
2132 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2133 PUTBACK;
2134 }
2135
2136 SvREFCNT_dec (GvAV (PL_defgv));
2137 GvAV (PL_defgv) = coro->invoke_av;
2138 coro->invoke_av = 0;
2139
2140 return 0;
2141 }
2142}
2143
2144static void
2145slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2146{
2147 HV *hv = (HV *)SvRV (coro_current);
2148 struct coro *coro = SvSTATE_hv ((SV *)hv);
2149
2150 if (expect_true (coro->saved_deffh))
2151 {
2152 /* subsequent iteration */
2153 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2154 coro->saved_deffh = 0;
2155
2156 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2157 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2158 {
2159 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
2160 coro->invoke_av = newAV ();
2161
2162 frame->prepare = prepare_nop;
2163 }
2164 else
2165 {
2166 av_clear (GvAV (PL_defgv));
2167 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2168
2169 coro->prio = 0;
2170
2171 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2172 api_trace (aTHX_ coro_current, 0);
2173
2174 frame->prepare = prepare_schedule;
2175 av_push (av_async_pool, SvREFCNT_inc (hv));
2176 }
2177 }
2178 else
2179 {
2180 /* first iteration, simply fall through */
2181 frame->prepare = prepare_nop;
2182 }
2183
2184 frame->check = slf_check_pool_handler;
2185 frame->data = (void *)coro;
2186}
2187
2188/*****************************************************************************/
2189/* rouse callback */
2190
2191#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
2192
2193static void
2194coro_rouse_callback (pTHX_ CV *cv)
2195{
2196 dXSARGS;
2197 SV *data = (SV *)S_GENSUB_ARG;
2198
2199 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2200 {
2201 /* first call, set args */
2202 SV *coro = SvRV (data);
2203 AV *av = newAV ();
2204
2205 SvRV_set (data, (SV *)av);
2206
2207 /* better take a full copy of the arguments */
2208 while (items--)
2209 av_store (av, items, newSVsv (ST (items)));
2210
2211 api_ready (aTHX_ coro);
2212 SvREFCNT_dec (coro);
2213 }
2214
2215 XSRETURN_EMPTY;
2216}
2217
2218static int
2219slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2220{
2221 SV *data = (SV *)frame->data;
2222
2223 if (CORO_THROW)
2224 return 0;
2225
2226 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2227 return 1;
2228
2229 /* now push all results on the stack */
2230 {
2231 dSP;
2232 AV *av = (AV *)SvRV (data);
2233 int i;
2234
2235 EXTEND (SP, AvFILLp (av) + 1);
2236 for (i = 0; i <= AvFILLp (av); ++i)
2237 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2238
2239 /* we have stolen the elements, so set length to zero and free */
2240 AvFILLp (av) = -1;
2241 av_undef (av);
2242
2243 PUTBACK;
2244 }
2245
2246 return 0;
2247}
2248
2249static void
2250slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2251{
2252 SV *cb;
2253
2254 if (items)
2255 cb = arg [0];
2256 else
2257 {
2258 struct coro *coro = SvSTATE_current;
2259
2260 if (!coro->rouse_cb)
2261 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2262
2263 cb = sv_2mortal (coro->rouse_cb);
2264 coro->rouse_cb = 0;
2265 }
2266
2267 if (!SvROK (cb)
2268 || SvTYPE (SvRV (cb)) != SVt_PVCV
2269 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2270 croak ("Coro::rouse_wait called with illegal callback argument,");
2271
2272 {
2273 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2274 SV *data = (SV *)S_GENSUB_ARG;
2275
2276 frame->data = (void *)data;
2277 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2278 frame->check = slf_check_rouse_wait;
2279 }
2280}
2281
2282static SV *
2283coro_new_rouse_cb (pTHX)
2284{
2285 HV *hv = (HV *)SvRV (coro_current);
2286 struct coro *coro = SvSTATE_hv (hv);
2287 SV *data = newRV_inc ((SV *)hv);
2288 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2289
2290 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2291 SvREFCNT_dec (data); /* magicext increases the refcount */
2292
2293 SvREFCNT_dec (coro->rouse_cb);
2294 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2295
2296 return cb;
1704} 2297}
1705 2298
1706/*****************************************************************************/ 2299/*****************************************************************************/
1707/* schedule-like-function opcode (SLF) */ 2300/* schedule-like-function opcode (SLF) */
1708 2301
… …
1755static void 2348static void
1756slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2349slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757{ 2350{
1758 frame->prepare = prepare_schedule; 2351 frame->prepare = prepare_schedule;
1759 frame->check = slf_check_nop; 2352 frame->check = slf_check_nop;
2353}
2354
2355static void
2356slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2357{
2358 struct coro *next = (struct coro *)slf_frame.data;
2359
2360 SvREFCNT_inc_NN (next->hv);
2361 prepare_schedule_to (aTHX_ ta, next);
2362}
2363
2364static void
2365slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2366{
2367 if (!items)
2368 croak ("Coro::schedule_to expects a coroutine argument, caught");
2369
2370 frame->data = (void *)SvSTATE (arg [0]);
2371 frame->prepare = slf_prepare_schedule_to;
2372 frame->check = slf_check_nop;
2373}
2374
2375static void
2376slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2377{
2378 api_ready (aTHX_ SvRV (coro_current));
2379
2380 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760} 2381}
1761 2382
1762static void 2383static void
1763slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2384slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764{ 2385{
… …
1835 } 2456 }
1836 while (slf_frame.check (aTHX_ &slf_frame)); 2457 while (slf_frame.check (aTHX_ &slf_frame));
1837 2458
1838 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2459 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839 2460
2461 /* exception handling */
2462 if (expect_false (CORO_THROW))
2463 {
2464 SV *exception = sv_2mortal (CORO_THROW);
2465
2466 CORO_THROW = 0;
2467 sv_setsv (ERRSV, exception);
2468 croak (0);
2469 }
2470
1840 /* return value handling - mostly like entersub */ 2471 /* return value handling - mostly like entersub */
1841 /* make sure we put something on the stack in scalar context */ 2472 /* make sure we put something on the stack in scalar context */
1842 if (GIMME_V == G_SCALAR) 2473 if (GIMME_V == G_SCALAR)
1843 { 2474 {
1844 dSP; 2475 dSP;
… …
1850 bot [1] = *sp; 2481 bot [1] = *sp;
1851 2482
1852 SP = bot + 1; 2483 SP = bot + 1;
1853 2484
1854 PUTBACK; 2485 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 } 2486 }
1866 2487
1867 return NORMAL; 2488 return NORMAL;
1868} 2489}
1869 2490
… …
1897 if (PL_op->op_flags & OPf_STACKED) 2518 if (PL_op->op_flags & OPf_STACKED)
1898 { 2519 {
1899 if (items > slf_arga) 2520 if (items > slf_arga)
1900 { 2521 {
1901 slf_arga = items; 2522 slf_arga = items;
1902 free (slf_argv); 2523 Safefree (slf_argv);
1903 slf_argv = malloc (slf_arga * sizeof (SV *)); 2524 New (0, slf_argv, slf_arga, SV *);
1904 } 2525 }
1905 2526
1906 slf_argc = items; 2527 slf_argc = items;
1907 2528
1908 for (i = 0; i < items; ++i) 2529 for (i = 0; i < items; ++i)
… …
1910 } 2531 }
1911 else 2532 else
1912 slf_argc = 0; 2533 slf_argc = 0;
1913 2534
1914 PL_op->op_ppaddr = pp_slf; 2535 PL_op->op_ppaddr = pp_slf;
1915 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2536 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916 2537
1917 PL_op = (OP *)&slf_restore; 2538 PL_op = (OP *)&slf_restore;
2539}
2540
2541/*****************************************************************************/
2542/* dynamic wind */
2543
2544static void
2545on_enterleave_call (pTHX_ SV *cb)
2546{
2547 dSP;
2548
2549 PUSHSTACK;
2550
2551 PUSHMARK (SP);
2552 PUTBACK;
2553 call_sv (cb, G_VOID | G_DISCARD);
2554 SPAGAIN;
2555
2556 POPSTACK;
2557}
2558
2559static SV *
2560coro_avp_pop_and_free (pTHX_ AV **avp)
2561{
2562 AV *av = *avp;
2563 SV *res = av_pop (av);
2564
2565 if (AvFILLp (av) < 0)
2566 {
2567 *avp = 0;
2568 SvREFCNT_dec (av);
2569 }
2570
2571 return res;
2572}
2573
2574static void
2575coro_pop_on_enter (pTHX_ void *coro)
2576{
2577 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2578 SvREFCNT_dec (cb);
2579}
2580
2581static void
2582coro_pop_on_leave (pTHX_ void *coro)
2583{
2584 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2585 on_enterleave_call (aTHX_ sv_2mortal (cb));
1918} 2586}
1919 2587
1920/*****************************************************************************/ 2588/*****************************************************************************/
1921/* PerlIO::cede */ 2589/* PerlIO::cede */
1922 2590
… …
1991 PerlIOBuf_get_cnt, 2659 PerlIOBuf_get_cnt,
1992 PerlIOBuf_set_ptrcnt, 2660 PerlIOBuf_set_ptrcnt,
1993}; 2661};
1994 2662
1995/*****************************************************************************/ 2663/*****************************************************************************/
2664/* Coro::Semaphore & Coro::Signal */
2665
2666static SV *
2667coro_waitarray_new (pTHX_ int count)
2668{
2669 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2670 AV *av = newAV ();
2671 SV **ary;
2672
2673 /* unfortunately, building manually saves memory */
2674 Newx (ary, 2, SV *);
2675 AvALLOC (av) = ary;
2676#if PERL_VERSION_ATLEAST (5,10,0)
2677 AvARRAY (av) = ary;
2678#else
2679 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2680 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2681 SvPVX ((SV *)av) = (char *)ary;
2682#endif
2683 AvMAX (av) = 1;
2684 AvFILLp (av) = 0;
2685 ary [0] = newSViv (count);
2686
2687 return newRV_noinc ((SV *)av);
2688}
2689
1996/* Coro::Semaphore */ 2690/* semaphore */
1997 2691
1998static void 2692static void
1999coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2693coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000{ 2694{
2001 SV *count_sv = AvARRAY (av)[0]; 2695 SV *count_sv = AvARRAY (av)[0];
… …
2013 AvARRAY (av)[0] = AvARRAY (av)[1]; 2707 AvARRAY (av)[0] = AvARRAY (av)[1];
2014 AvARRAY (av)[1] = count_sv; 2708 AvARRAY (av)[1] = count_sv;
2015 cb = av_shift (av); 2709 cb = av_shift (av);
2016 2710
2017 if (SvOBJECT (cb)) 2711 if (SvOBJECT (cb))
2712 {
2018 api_ready (aTHX_ cb); 2713 api_ready (aTHX_ cb);
2019 else 2714 --count;
2020 croak ("callbacks not yet supported"); 2715 }
2716 else if (SvTYPE (cb) == SVt_PVCV)
2717 {
2718 dSP;
2719 PUSHMARK (SP);
2720 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2721 PUTBACK;
2722 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2723 }
2021 2724
2022 SvREFCNT_dec (cb); 2725 SvREFCNT_dec (cb);
2023
2024 --count;
2025 } 2726 }
2026} 2727}
2027 2728
2028static void 2729static void
2029coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2730coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2031 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2732 /* call $sem->adjust (0) to possibly wake up some other waiters */
2032 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2733 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033} 2734}
2034 2735
2035static int 2736static int
2036slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2737slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037{ 2738{
2038 AV *av = (AV *)frame->data; 2739 AV *av = (AV *)frame->data;
2039 SV *count_sv = AvARRAY (av)[0]; 2740 SV *count_sv = AvARRAY (av)[0];
2040 2741
2742 /* if we are about to throw, don't actually acquire the lock, just throw */
2743 if (CORO_THROW)
2744 return 0;
2041 if (SvIVX (count_sv) > 0) 2745 else if (SvIVX (count_sv) > 0)
2042 { 2746 {
2043 SvSTATE_current->on_destroy = 0; 2747 SvSTATE_current->on_destroy = 0;
2748
2749 if (acquire)
2044 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2750 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2751 else
2752 coro_semaphore_adjust (aTHX_ av, 0);
2753
2045 return 0; 2754 return 0;
2046 } 2755 }
2047 else 2756 else
2048 { 2757 {
2049 int i; 2758 int i;
… …
2058 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2767 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059 return 1; 2768 return 1;
2060 } 2769 }
2061} 2770}
2062 2771
2063static void 2772static int
2773slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2774{
2775 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2776}
2777
2778static int
2779slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2780{
2781 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2782}
2783
2784static void
2064slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2785slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065{ 2786{
2066 AV *av = (AV *)SvRV (arg [0]); 2787 AV *av = (AV *)SvRV (arg [0]);
2067 2788
2068 if (SvIVX (AvARRAY (av)[0]) > 0) 2789 if (SvIVX (AvARRAY (av)[0]) > 0)
2069 { 2790 {
2070 frame->data = (void *)av; 2791 frame->data = (void *)av;
2071 frame->prepare = prepare_nop; 2792 frame->prepare = prepare_nop;
2072 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073 } 2793 }
2074 else 2794 else
2075 { 2795 {
2076 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2796 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077 2797
2078 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2798 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079 frame->prepare = prepare_schedule; 2799 frame->prepare = prepare_schedule;
2080 2800
2081 /* to avoid race conditions when a woken-up coro gets terminated */ 2801 /* to avoid race conditions when a woken-up coro gets terminated */
2082 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2802 /* 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; 2803 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085 } 2804 }
2805}
2086 2806
2807static void
2808slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2809{
2810 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087 frame->check = slf_check_semaphore_down; 2811 frame->check = slf_check_semaphore_down;
2088
2089} 2812}
2090 2813
2091/*****************************************************************************/ 2814static void
2092/* gensub: simple closure generation utility */ 2815slf_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{ 2816{
2102 CV *cv = (CV *)newSV (0); 2817 if (items >= 2)
2818 {
2819 /* callback form */
2820 AV *av = (AV *)SvRV (arg [0]);
2821 SV *cb_cv = s_get_cv_croak (arg [1]);
2103 2822
2104 sv_upgrade ((SV *)cv, SVt_PVCV); 2823 av_push (av, SvREFCNT_inc_NN (cb_cv));
2105 2824
2106 CvANON_on (cv); 2825 if (SvIVX (AvARRAY (av)[0]) > 0)
2107 CvISXSUB_on (cv); 2826 coro_semaphore_adjust (aTHX_ av, 0);
2108 CvXSUB (cv) = xsub;
2109 GENSUB_ARG = arg;
2110 2827
2111 return newRV_noinc ((SV *)cv); 2828 frame->prepare = prepare_nop;
2829 frame->check = slf_check_nop;
2830 }
2831 else
2832 {
2833 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2834 frame->check = slf_check_semaphore_wait;
2835 }
2836}
2837
2838/* signal */
2839
2840static void
2841coro_signal_wake (pTHX_ AV *av, int count)
2842{
2843 SvIVX (AvARRAY (av)[0]) = 0;
2844
2845 /* now signal count waiters */
2846 while (count > 0 && AvFILLp (av) > 0)
2847 {
2848 SV *cb;
2849
2850 /* swap first two elements so we can shift a waiter */
2851 cb = AvARRAY (av)[0];
2852 AvARRAY (av)[0] = AvARRAY (av)[1];
2853 AvARRAY (av)[1] = cb;
2854
2855 cb = av_shift (av);
2856
2857 if (SvTYPE (cb) == SVt_PVCV)
2858 {
2859 dSP;
2860 PUSHMARK (SP);
2861 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2862 PUTBACK;
2863 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2864 }
2865 else
2866 {
2867 api_ready (aTHX_ cb);
2868 sv_setiv (cb, 0); /* signal waiter */
2869 }
2870
2871 SvREFCNT_dec (cb);
2872
2873 --count;
2874 }
2875}
2876
2877static int
2878slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2879{
2880 /* if we are about to throw, also stop waiting */
2881 return SvROK ((SV *)frame->data) && !CORO_THROW;
2882}
2883
2884static void
2885slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2886{
2887 AV *av = (AV *)SvRV (arg [0]);
2888
2889 if (items >= 2)
2890 {
2891 SV *cb_cv = s_get_cv_croak (arg [1]);
2892 av_push (av, SvREFCNT_inc_NN (cb_cv));
2893
2894 if (SvIVX (AvARRAY (av)[0]))
2895 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2896
2897 frame->prepare = prepare_nop;
2898 frame->check = slf_check_nop;
2899 }
2900 else if (SvIVX (AvARRAY (av)[0]))
2901 {
2902 SvIVX (AvARRAY (av)[0]) = 0;
2903 frame->prepare = prepare_nop;
2904 frame->check = slf_check_nop;
2905 }
2906 else
2907 {
2908 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2909
2910 av_push (av, waiter);
2911
2912 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2913 frame->prepare = prepare_schedule;
2914 frame->check = slf_check_signal_wait;
2915 }
2112} 2916}
2113 2917
2114/*****************************************************************************/ 2918/*****************************************************************************/
2115/* Coro::AIO */ 2919/* Coro::AIO */
2116 2920
… …
2127 2931
2128static void 2932static void
2129coro_aio_callback (pTHX_ CV *cv) 2933coro_aio_callback (pTHX_ CV *cv)
2130{ 2934{
2131 dXSARGS; 2935 dXSARGS;
2132 AV *state = (AV *)GENSUB_ARG; 2936 AV *state = (AV *)S_GENSUB_ARG;
2133 SV *coro = av_pop (state); 2937 SV *coro = av_pop (state);
2134 SV *data_sv = newSV (sizeof (struct io_state)); 2938 SV *data_sv = newSV (sizeof (struct io_state));
2135 2939
2136 av_extend (state, items); 2940 av_extend (state, items - 1);
2137 2941
2138 sv_upgrade (data_sv, SVt_PV); 2942 sv_upgrade (data_sv, SVt_PV);
2139 SvCUR_set (data_sv, sizeof (struct io_state)); 2943 SvCUR_set (data_sv, sizeof (struct io_state));
2140 SvPOK_only (data_sv); 2944 SvPOK_only (data_sv);
2141 2945
… …
2166static int 2970static int
2167slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2971slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168{ 2972{
2169 AV *state = (AV *)frame->data; 2973 AV *state = (AV *)frame->data;
2170 2974
2975 /* if we are about to throw, return early */
2976 /* this does not cancel the aio request, but at least */
2977 /* it quickly returns */
2978 if (CORO_THROW)
2979 return 0;
2980
2171 /* one element that is an RV? repeat! */ 2981 /* one element that is an RV? repeat! */
2172 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2982 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173 return 1; 2983 return 1;
2174 2984
2175 /* restore status */ 2985 /* restore status */
… …
2245 3055
2246 for (i = 0; i < items; ++i) 3056 for (i = 0; i < items; ++i)
2247 PUSHs (arg [i]); 3057 PUSHs (arg [i]);
2248 3058
2249 /* now push the callback closure */ 3059 /* now push the callback closure */
2250 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3060 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2251 3061
2252 /* now call the AIO function - we assume our request is uncancelable */ 3062 /* now call the AIO function - we assume our request is uncancelable */
2253 PUTBACK; 3063 PUTBACK;
2254 call_sv ((SV *)req, G_VOID | G_DISCARD); 3064 call_sv ((SV *)req, G_VOID | G_DISCARD);
2255 } 3065 }
2256 3066
2257 /* now that the requets is going, we loop toll we have a result */ 3067 /* now that the request is going, we loop till we have a result */
2258 frame->data = (void *)state; 3068 frame->data = (void *)state;
2259 frame->prepare = prepare_schedule; 3069 frame->prepare = prepare_schedule;
2260 frame->check = slf_check_aio_req; 3070 frame->check = slf_check_aio_req;
2261} 3071}
2262 3072
… …
2269 3079
2270 XSRETURN_EMPTY; 3080 XSRETURN_EMPTY;
2271} 3081}
2272 3082
2273/*****************************************************************************/ 3083/*****************************************************************************/
3084
3085#if CORO_CLONE
3086# include "clone.c"
3087#endif
3088
3089/*****************************************************************************/
3090
3091static SV *
3092coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3093{
3094 SV *coro_sv;
3095 struct coro *coro;
3096 MAGIC *mg;
3097 HV *hv;
3098 SV *cb;
3099 int i;
3100
3101 if (argc > 0)
3102 {
3103 cb = s_get_cv_croak (argv [0]);
3104
3105 if (!is_coro)
3106 {
3107 if (CvISXSUB (cb))
3108 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3109
3110 if (!CvROOT (cb))
3111 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3112 }
3113 }
3114
3115 Newz (0, coro, 1, struct coro);
3116 coro->args = newAV ();
3117 coro->flags = CF_NEW;
3118
3119 if (coro_first) coro_first->prev = coro;
3120 coro->next = coro_first;
3121 coro_first = coro;
3122
3123 coro->hv = hv = newHV ();
3124 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3125 mg->mg_flags |= MGf_DUP;
3126 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3127
3128 if (argc > 0)
3129 {
3130 av_extend (coro->args, argc + is_coro - 1);
3131
3132 if (is_coro)
3133 {
3134 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3135 cb = (SV *)cv_coro_run;
3136 }
3137
3138 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3139
3140 for (i = 1; i < argc; i++)
3141 av_push (coro->args, newSVsv (argv [i]));
3142 }
3143
3144 return coro_sv;
3145}
2274 3146
2275MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3147MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276 3148
2277PROTOTYPES: DISABLE 3149PROTOTYPES: DISABLE
2278 3150
… …
2283 coro_thx = PERL_GET_CONTEXT; 3155 coro_thx = PERL_GET_CONTEXT;
2284# endif 3156# endif
2285#endif 3157#endif
2286 BOOT_PAGESIZE; 3158 BOOT_PAGESIZE;
2287 3159
3160 cctx_current = cctx_new_empty ();
3161
2288 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3162 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3163 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290 3164
2291 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3165 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; 3166 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2311 3185
2312 { 3186 {
2313 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3187 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314 3188
2315 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3189 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316 hv_store_ent (PL_custom_op_names, slf, 3190 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317 newSVpv ("coro_slf", 0), 0);
2318 3191
2319 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3192 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320 hv_store_ent (PL_custom_op_descs, slf, 3193 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321 newSVpv ("coro schedule like function", 0), 0);
2322 } 3194 }
2323 3195
2324 coroapi.ver = CORO_API_VERSION; 3196 coroapi.ver = CORO_API_VERSION;
2325 coroapi.rev = CORO_API_REVISION; 3197 coroapi.rev = CORO_API_REVISION;
2326 3198
… …
2331 coroapi.prepare_nop = prepare_nop; 3203 coroapi.prepare_nop = prepare_nop;
2332 coroapi.prepare_schedule = prepare_schedule; 3204 coroapi.prepare_schedule = prepare_schedule;
2333 coroapi.prepare_cede = prepare_cede; 3205 coroapi.prepare_cede = prepare_cede;
2334 coroapi.prepare_cede_notself = prepare_cede_notself; 3206 coroapi.prepare_cede_notself = prepare_cede_notself;
2335 3207
2336 { 3208 time_init (aTHX);
2337 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2338 3209
2339 if (!svp) croak ("Time::HiRes is required");
2340 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2341
2342 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2343 }
2344
2345 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3210 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2346} 3211}
2347 3212
2348SV * 3213SV *
2349new (char *klass, ...) 3214new (SV *klass, ...)
3215 ALIAS:
3216 Coro::new = 1
2350 CODE: 3217 CODE:
2351{ 3218 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2352 struct coro *coro; 3219 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 3220 RETVAL
2376 3221
2377void 3222void
2378transfer (...) 3223transfer (...)
2379 PROTOTYPE: $$ 3224 PROTOTYPE: $$
2380 CODE: 3225 CODE:
2381 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3226 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2382 3227
2383bool
2384_destroy (SV *coro_sv)
2385 CODE:
2386 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2387 OUTPUT:
2388 RETVAL
2389
2390void 3228void
2391_exit (int code) 3229_exit (int code)
2392 PROTOTYPE: $ 3230 PROTOTYPE: $
2393 CODE: 3231 CODE:
2394 _exit (code); 3232 _exit (code);
3233
3234SV *
3235clone (Coro::State coro)
3236 CODE:
3237{
3238#if CORO_CLONE
3239 struct coro *ncoro = coro_clone (aTHX_ coro);
3240 MAGIC *mg;
3241 /* TODO: too much duplication */
3242 ncoro->hv = newHV ();
3243 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3244 mg->mg_flags |= MGf_DUP;
3245 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3246#else
3247 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3248#endif
3249}
3250 OUTPUT:
3251 RETVAL
2395 3252
2396int 3253int
2397cctx_stacksize (int new_stacksize = 0) 3254cctx_stacksize (int new_stacksize = 0)
2398 PROTOTYPE: ;$ 3255 PROTOTYPE: ;$
2399 CODE: 3256 CODE:
… …
2449 eval = 1 3306 eval = 1
2450 CODE: 3307 CODE:
2451{ 3308{
2452 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3309 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2453 { 3310 {
2454 struct coro temp; 3311 struct coro *current = SvSTATE_current;
2455 3312
2456 if (!(coro->flags & CF_RUNNING)) 3313 if (current != coro)
2457 { 3314 {
2458 PUTBACK; 3315 PUTBACK;
2459 save_perl (aTHX_ &temp); 3316 save_perl (aTHX_ current);
2460 load_perl (aTHX_ coro); 3317 load_perl (aTHX_ coro);
3318 SPAGAIN;
2461 } 3319 }
2462 3320
2463 {
2464 dSP;
2465 ENTER;
2466 SAVETMPS;
2467 PUTBACK;
2468 PUSHSTACK; 3321 PUSHSTACK;
3322
2469 PUSHMARK (SP); 3323 PUSHMARK (SP);
3324 PUTBACK;
2470 3325
2471 if (ix) 3326 if (ix)
2472 eval_sv (coderef, 0); 3327 eval_sv (coderef, 0);
2473 else 3328 else
2474 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3329 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2475 3330
2476 POPSTACK; 3331 POPSTACK;
2477 SPAGAIN; 3332 SPAGAIN;
2478 FREETMPS;
2479 LEAVE;
2480 PUTBACK;
2481 }
2482 3333
2483 if (!(coro->flags & CF_RUNNING)) 3334 if (current != coro)
2484 { 3335 {
3336 PUTBACK;
2485 save_perl (aTHX_ coro); 3337 save_perl (aTHX_ coro);
2486 load_perl (aTHX_ &temp); 3338 load_perl (aTHX_ current);
2487 SPAGAIN; 3339 SPAGAIN;
2488 } 3340 }
2489 } 3341 }
2490} 3342}
2491 3343
… …
2495 ALIAS: 3347 ALIAS:
2496 is_ready = CF_READY 3348 is_ready = CF_READY
2497 is_running = CF_RUNNING 3349 is_running = CF_RUNNING
2498 is_new = CF_NEW 3350 is_new = CF_NEW
2499 is_destroyed = CF_DESTROYED 3351 is_destroyed = CF_DESTROYED
3352 is_suspended = CF_SUSPENDED
2500 CODE: 3353 CODE:
2501 RETVAL = boolSV (coro->flags & ix); 3354 RETVAL = boolSV (coro->flags & ix);
2502 OUTPUT: 3355 OUTPUT:
2503 RETVAL 3356 RETVAL
2504 3357
2505void 3358void
2506throw (Coro::State self, SV *throw = &PL_sv_undef) 3359throw (Coro::State self, SV *exception = &PL_sv_undef)
2507 PROTOTYPE: $;$ 3360 PROTOTYPE: $;$
2508 CODE: 3361 CODE:
2509{ 3362{
2510 struct coro *current = SvSTATE_current; 3363 struct coro *current = SvSTATE_current;
2511 SV **throwp = self == current ? &coro_throw : &self->throw; 3364 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2512 SvREFCNT_dec (*throwp); 3365 SvREFCNT_dec (*exceptionp);
2513 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3366 SvGETMAGIC (exception);
3367 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2514} 3368}
2515 3369
2516void 3370void
2517api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3371api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2518 PROTOTYPE: $;$ 3372 PROTOTYPE: $;$
… …
2520 3374
2521SV * 3375SV *
2522has_cctx (Coro::State coro) 3376has_cctx (Coro::State coro)
2523 PROTOTYPE: $ 3377 PROTOTYPE: $
2524 CODE: 3378 CODE:
2525 RETVAL = boolSV (!!coro->cctx); 3379 /* maybe manage the running flag differently */
3380 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2526 OUTPUT: 3381 OUTPUT:
2527 RETVAL 3382 RETVAL
2528 3383
2529int 3384int
2530is_traced (Coro::State coro) 3385is_traced (Coro::State coro)
… …
2550 3405
2551void 3406void
2552force_cctx () 3407force_cctx ()
2553 PROTOTYPE: 3408 PROTOTYPE:
2554 CODE: 3409 CODE:
2555 SvSTATE_current->cctx->idle_sp = 0; 3410 cctx_current->idle_sp = 0;
2556 3411
2557void 3412void
2558swap_defsv (Coro::State self) 3413swap_defsv (Coro::State self)
2559 PROTOTYPE: $ 3414 PROTOTYPE: $
2560 ALIAS: 3415 ALIAS:
… …
2568 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3423 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2569 3424
2570 SV *tmp = *src; *src = *dst; *dst = tmp; 3425 SV *tmp = *src; *src = *dst; *dst = tmp;
2571 } 3426 }
2572 3427
3428void
3429cancel (Coro::State self)
3430 CODE:
3431 coro_state_destroy (aTHX_ self);
3432
3433SV *
3434enable_times (int enabled = enable_times)
3435 CODE:
3436{
3437 RETVAL = boolSV (enable_times);
3438
3439 if (enabled != enable_times)
3440 {
3441 enable_times = enabled;
3442
3443 coro_times_update ();
3444 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3445 }
3446}
3447 OUTPUT:
3448 RETVAL
3449
3450void
3451times (Coro::State self)
3452 PPCODE:
3453{
3454 struct coro *current = SvSTATE (coro_current);
3455
3456 if (expect_false (current == self))
3457 {
3458 coro_times_update ();
3459 coro_times_add (SvSTATE (coro_current));
3460 }
3461
3462 EXTEND (SP, 2);
3463 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3464 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3465
3466 if (expect_false (current == self))
3467 coro_times_sub (SvSTATE (coro_current));
3468}
3469
3470void
3471swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3472 CODE:
3473{
3474 struct coro *current = SvSTATE_current;
3475
3476 if (current == coro)
3477 SWAP_SVS (current);
3478
3479 if (!coro->swap_sv)
3480 coro->swap_sv = newAV ();
3481
3482 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3483 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3484
3485 if (current == coro)
3486 SWAP_SVS (current);
3487}
3488
2573 3489
2574MODULE = Coro::State PACKAGE = Coro 3490MODULE = Coro::State PACKAGE = Coro
2575 3491
2576BOOT: 3492BOOT:
2577{ 3493{
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); 3494 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3495 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583 3496 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3497 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3498 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585 SvREADONLY_on (coro_current); 3499 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3500 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3501 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3502 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2586 3503
3504 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3505 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3506 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3507 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3508
2587 coro_stash = gv_stashpv ("Coro", TRUE); 3509 coro_stash = gv_stashpv ("Coro", TRUE);
2588 3510
2589 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3511 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2590 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3512 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2591 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3513 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2592 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3514 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2593 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3515 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2594 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3516 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 3517
2599 { 3518 {
2600 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3519 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601 3520
2602 coroapi.schedule = api_schedule; 3521 coroapi.schedule = api_schedule;
3522 coroapi.schedule_to = api_schedule_to;
2603 coroapi.cede = api_cede; 3523 coroapi.cede = api_cede;
2604 coroapi.cede_notself = api_cede_notself; 3524 coroapi.cede_notself = api_cede_notself;
2605 coroapi.ready = api_ready; 3525 coroapi.ready = api_ready;
2606 coroapi.is_ready = api_is_ready; 3526 coroapi.is_ready = api_is_ready;
2607 coroapi.nready = coro_nready; 3527 coroapi.nready = coro_nready;
2608 coroapi.current = coro_current; 3528 coroapi.current = coro_current;
2609 3529
2610 GCoroAPI = &coroapi; 3530 /*GCoroAPI = &coroapi;*/
2611 sv_setiv (sv, (IV)&coroapi); 3531 sv_setiv (sv, (IV)&coroapi);
2612 SvREADONLY_on (sv); 3532 SvREADONLY_on (sv);
2613 } 3533 }
2614} 3534}
3535
3536SV *
3537async (...)
3538 PROTOTYPE: &@
3539 CODE:
3540 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3541 api_ready (aTHX_ RETVAL);
3542 OUTPUT:
3543 RETVAL
3544
3545void
3546_destroy (Coro::State coro)
3547 CODE:
3548 /* used by the manager thread */
3549 coro_state_destroy (aTHX_ coro);
3550 coro_call_on_destroy (aTHX_ coro);
3551
3552void
3553terminate (...)
3554 CODE:
3555 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3556
3557void
3558cancel (...)
3559 CODE:
3560 CORO_EXECUTE_SLF_XS (slf_init_cancel);
2615 3561
2616void 3562void
2617schedule (...) 3563schedule (...)
2618 CODE: 3564 CODE:
2619 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3565 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3566
3567void
3568schedule_to (...)
3569 CODE:
3570 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3571
3572void
3573cede_to (...)
3574 CODE:
3575 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2620 3576
2621void 3577void
2622cede (...) 3578cede (...)
2623 CODE: 3579 CODE:
2624 CORO_EXECUTE_SLF_XS (slf_init_cede); 3580 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2638void 3594void
2639_set_readyhook (SV *hook) 3595_set_readyhook (SV *hook)
2640 PROTOTYPE: $ 3596 PROTOTYPE: $
2641 CODE: 3597 CODE:
2642 SvREFCNT_dec (coro_readyhook); 3598 SvREFCNT_dec (coro_readyhook);
3599 SvGETMAGIC (hook);
3600 if (SvOK (hook))
3601 {
2643 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3602 coro_readyhook = newSVsv (hook);
3603 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3604 }
3605 else
3606 {
3607 coro_readyhook = 0;
3608 CORO_READYHOOK = 0;
3609 }
2644 3610
2645int 3611int
2646prio (Coro::State coro, int newprio = 0) 3612prio (Coro::State coro, int newprio = 0)
2647 PROTOTYPE: $;$ 3613 PROTOTYPE: $;$
2648 ALIAS: 3614 ALIAS:
… …
2654 if (items > 1) 3620 if (items > 1)
2655 { 3621 {
2656 if (ix) 3622 if (ix)
2657 newprio = coro->prio - newprio; 3623 newprio = coro->prio - newprio;
2658 3624
2659 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3625 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2660 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3626 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2661 3627
2662 coro->prio = newprio; 3628 coro->prio = newprio;
2663 } 3629 }
2664} 3630}
2665 OUTPUT: 3631 OUTPUT:
… …
2679 CODE: 3645 CODE:
2680 RETVAL = coro_nready; 3646 RETVAL = coro_nready;
2681 OUTPUT: 3647 OUTPUT:
2682 RETVAL 3648 RETVAL
2683 3649
2684# for async_pool speedup
2685void 3650void
2686_pool_1 (SV *cb) 3651suspend (Coro::State self)
3652 PROTOTYPE: $
2687 CODE: 3653 CODE:
2688{ 3654 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 3655
2696 if (!invoke) 3656void
3657resume (Coro::State self)
3658 PROTOTYPE: $
3659 CODE:
3660 self->flags &= ~CF_SUSPENDED;
3661
3662void
3663_pool_handler (...)
3664 CODE:
3665 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3666
3667void
3668async_pool (SV *cv, ...)
3669 PROTOTYPE: &@
3670 PPCODE:
3671{
3672 HV *hv = (HV *)av_pop (av_async_pool);
3673 AV *av = newAV ();
3674 SV *cb = ST (0);
3675 int i;
3676
3677 av_extend (av, items - 2);
3678 for (i = 1; i < items; ++i)
3679 av_push (av, SvREFCNT_inc_NN (ST (i)));
3680
3681 if ((SV *)hv == &PL_sv_undef)
2697 { 3682 {
2698 SV *old = PL_diehook; 3683 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2699 PL_diehook = 0; 3684 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2700 SvREFCNT_dec (old); 3685 SvREFCNT_dec (sv);
2701 croak ("\3async_pool terminate\2\n");
2702 } 3686 }
2703 3687
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 { 3688 {
2717 av_fill (defav, len - 1); 3689 struct coro *coro = SvSTATE_hv (hv);
2718 for (i = 0; i < len; ++i) 3690
2719 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3691 assert (!coro->invoke_cb);
3692 assert (!coro->invoke_av);
3693 coro->invoke_cb = SvREFCNT_inc (cb);
3694 coro->invoke_av = av;
2720 } 3695 }
3696
3697 api_ready (aTHX_ (SV *)hv);
3698
3699 if (GIMME_V != G_VOID)
3700 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3701 else
3702 SvREFCNT_dec (hv);
2721} 3703}
3704
3705SV *
3706rouse_cb ()
3707 PROTOTYPE:
3708 CODE:
3709 RETVAL = coro_new_rouse_cb (aTHX);
3710 OUTPUT:
3711 RETVAL
2722 3712
2723void 3713void
2724_pool_2 (SV *cb) 3714rouse_wait (...)
3715 PROTOTYPE: ;$
3716 PPCODE:
3717 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3718
3719void
3720on_enter (SV *block)
3721 ALIAS:
3722 on_leave = 1
3723 PROTOTYPE: &
2725 CODE: 3724 CODE:
2726{ 3725{
2727 HV *hv = (HV *)SvRV (coro_current);
2728 struct coro *coro = SvSTATE_hv ((SV *)hv); 3726 struct coro *coro = SvSTATE_current;
3727 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2729 3728
2730 sv_setsv (cb, &PL_sv_undef); 3729 block = s_get_cv_croak (block);
2731 3730
2732 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3731 if (!*avp)
2733 coro->saved_deffh = 0; 3732 *avp = newAV ();
2734 3733
2735 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 3734 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 3735
2744 av_clear (GvAV (PL_defgv)); 3736 if (!ix)
2745 hv_store (hv, "desc", sizeof ("desc") - 1, 3737 on_enterleave_call (aTHX_ block);
2746 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747 3738
2748 coro->prio = 0; 3739 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2749 3740 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2750 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3741 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} 3742}
2755 3743
2756 3744
2757MODULE = Coro::State PACKAGE = PerlIO::cede 3745MODULE = Coro::State PACKAGE = PerlIO::cede
2758 3746
… …
2761 3749
2762 3750
2763MODULE = Coro::State PACKAGE = Coro::Semaphore 3751MODULE = Coro::State PACKAGE = Coro::Semaphore
2764 3752
2765SV * 3753SV *
2766new (SV *klass, SV *count_ = 0) 3754new (SV *klass, SV *count = 0)
2767 CODE: 3755 CODE:
2768{ 3756{
2769 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3757 int semcnt = 1;
2770 AV *av = newAV ();
2771 SV **ary;
2772 3758
2773 /* unfortunately, building manually saves memory */ 3759 if (count)
2774 Newx (ary, 2, SV *); 3760 {
2775 AvALLOC (av) = ary; 3761 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 3762
2781 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 3763 if (SvOK (count))
3764 semcnt = SvIV (count);
3765 }
3766
3767 RETVAL = sv_bless (
3768 coro_waitarray_new (aTHX_ semcnt),
3769 GvSTASH (CvGV (cv))
3770 );
2782} 3771}
3772 OUTPUT:
3773 RETVAL
3774
3775# helper for Coro::Channel and others
3776SV *
3777_alloc (int count)
3778 CODE:
3779 RETVAL = coro_waitarray_new (aTHX_ count);
2783 OUTPUT: 3780 OUTPUT:
2784 RETVAL 3781 RETVAL
2785 3782
2786SV * 3783SV *
2787count (SV *self) 3784count (SV *self)
… …
2796 adjust = 1 3793 adjust = 1
2797 CODE: 3794 CODE:
2798 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3795 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799 3796
2800void 3797void
2801down (SV *self) 3798down (...)
2802 CODE: 3799 CODE:
2803 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3800 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3801
3802void
3803wait (...)
3804 CODE:
3805 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804 3806
2805void 3807void
2806try (SV *self) 3808try (SV *self)
2807 PPCODE: 3809 PPCODE:
2808{ 3810{
… …
2820 XSRETURN_NO; 3822 XSRETURN_NO;
2821} 3823}
2822 3824
2823void 3825void
2824waiters (SV *self) 3826waiters (SV *self)
2825 CODE: 3827 PPCODE:
2826{ 3828{
2827 AV *av = (AV *)SvRV (self); 3829 AV *av = (AV *)SvRV (self);
3830 int wcount = AvFILLp (av) + 1 - 1;
2828 3831
2829 if (GIMME_V == G_SCALAR) 3832 if (GIMME_V == G_SCALAR)
2830 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3833 XPUSHs (sv_2mortal (newSViv (wcount)));
2831 else 3834 else
2832 { 3835 {
2833 int i; 3836 int i;
2834 EXTEND (SP, AvFILLp (av) + 1 - 1); 3837 EXTEND (SP, wcount);
2835 for (i = 1; i <= AvFILLp (av); ++i) 3838 for (i = 1; i <= wcount; ++i)
2836 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3839 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837 } 3840 }
2838} 3841}
3842
3843MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3844
3845void
3846_may_delete (SV *sem, int count, int extra_refs)
3847 PPCODE:
3848{
3849 AV *av = (AV *)SvRV (sem);
3850
3851 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3852 && AvFILLp (av) == 0 /* no waiters, just count */
3853 && SvIV (AvARRAY (av)[0]) == count)
3854 XSRETURN_YES;
3855
3856 XSRETURN_NO;
3857}
3858
3859MODULE = Coro::State PACKAGE = Coro::Signal
3860
3861SV *
3862new (SV *klass)
3863 CODE:
3864 RETVAL = sv_bless (
3865 coro_waitarray_new (aTHX_ 0),
3866 GvSTASH (CvGV (cv))
3867 );
3868 OUTPUT:
3869 RETVAL
3870
3871void
3872wait (...)
3873 CODE:
3874 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3875
3876void
3877broadcast (SV *self)
3878 CODE:
3879{
3880 AV *av = (AV *)SvRV (self);
3881 coro_signal_wake (aTHX_ av, AvFILLp (av));
3882}
3883
3884void
3885send (SV *self)
3886 CODE:
3887{
3888 AV *av = (AV *)SvRV (self);
3889
3890 if (AvFILLp (av))
3891 coro_signal_wake (aTHX_ av, 1);
3892 else
3893 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3894}
3895
3896IV
3897awaited (SV *self)
3898 CODE:
3899 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3900 OUTPUT:
3901 RETVAL
2839 3902
2840 3903
2841MODULE = Coro::State PACKAGE = Coro::AnyEvent 3904MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842 3905
2843BOOT: 3906BOOT:
… …
2871 3934
2872void 3935void
2873_register (char *target, char *proto, SV *req) 3936_register (char *target, char *proto, SV *req)
2874 CODE: 3937 CODE:
2875{ 3938{
2876 HV *st; 3939 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 */ 3940 /* newXSproto doesn't return the CV on 5.8 */
2880 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3941 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881 sv_setpv ((SV *)slf_cv, proto); 3942 sv_setpv ((SV *)slf_cv, proto);
2882 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3943 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883} 3944}
2884 3945
3946MODULE = Coro::State PACKAGE = Coro::Select
3947
3948void
3949patch_pp_sselect ()
3950 CODE:
3951 if (!coro_old_pp_sselect)
3952 {
3953 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3954 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3955 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3956 }
3957
3958void
3959unpatch_pp_sselect ()
3960 CODE:
3961 if (coro_old_pp_sselect)
3962 {
3963 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3964 coro_old_pp_sselect = 0;
3965 }
3966

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