ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/Coro/Coro/State.xs
(Generate patch)

Comparing Coro/Coro/State.xs (file contents):
Revision 1.290 by root, Tue Nov 18 05:51:38 2008 UTC vs.
Revision 1.387 by root, Mon Feb 21 13:38:04 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
21
22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
16 25
17#ifdef WIN32 26#ifdef WIN32
18# undef setjmp 27# undef setjmp
19# undef longjmp 28# undef longjmp
20# undef _exit 29# undef _exit
21# define setjmp _setjmp // deep magic, don't ask 30# define setjmp _setjmp /* deep magic */
22#else 31#else
23# include <inttypes.h> /* most portable stdint.h */ 32# include <inttypes.h> /* most portable stdint.h */
24#endif 33#endif
25 34
26#ifdef HAVE_MMAP 35#ifdef HAVE_MMAP
… …
51#endif 60#endif
52 61
53/* the maximum number of idle cctx that will be pooled */ 62/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 63static int cctx_max_idle = 4;
55 64
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERLSUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103
104/* 5.8.7 */
105#ifndef SvRV_set
106# define SvRV_set(s,v) SvRV(s) = (v)
107#endif
108
109#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 65#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
110# undef CORO_STACKGUARD 66# undef CORO_STACKGUARD
111#endif 67#endif
112 68
113#ifndef CORO_STACKGUARD 69#ifndef CORO_STACKGUARD
… …
120#endif 76#endif
121 77
122/* The next macros try to return the current stack pointer, in an as 78/* The next macros try to return the current stack pointer, in an as
123 * portable way as possible. */ 79 * portable way as possible. */
124#if __GNUC__ >= 4 80#if __GNUC__ >= 4
81# define dSTACKLEVEL int stacklevel_dummy
125# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) 82# define STACKLEVEL __builtin_frame_address (0)
126#else 83#else
127# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel 84# define dSTACKLEVEL volatile void *stacklevel
85# define STACKLEVEL ((void *)&stacklevel)
128#endif 86#endif
129 87
130#define IN_DESTRUCT (PL_main_cv == Nullcv) 88#define IN_DESTRUCT PL_dirty
131 89
132#if __GNUC__ >= 3 90#if __GNUC__ >= 3
133# define attribute(x) __attribute__(x) 91# define attribute(x) __attribute__(x)
134# define expect(expr,value) __builtin_expect ((expr),(value)) 92# define expect(expr,value) __builtin_expect ((expr), (value))
135# define INLINE static inline 93# define INLINE static inline
136#else 94#else
137# define attribute(x) 95# define attribute(x)
138# define expect(expr,value) (expr) 96# define expect(expr,value) (expr)
139# define INLINE static 97# define INLINE static
… …
143#define expect_true(expr) expect ((expr) != 0, 1) 101#define expect_true(expr) expect ((expr) != 0, 1)
144 102
145#define NOINLINE attribute ((noinline)) 103#define NOINLINE attribute ((noinline))
146 104
147#include "CoroAPI.h" 105#include "CoroAPI.h"
106#define GCoroAPI (&coroapi) /* very sneaky */
148 107
149#ifdef USE_ITHREADS 108#ifdef USE_ITHREADS
150# if CORO_PTHREAD 109# if CORO_PTHREAD
151static void *coro_thx; 110static void *coro_thx;
152# endif 111# endif
153#endif 112#endif
154 113
114#ifdef __linux
115# include <time.h> /* for timespec */
116# include <syscall.h> /* for SYS_* */
117# ifdef SYS_clock_gettime
118# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
119# define CORO_CLOCK_MONOTONIC 1
120# define CORO_CLOCK_THREAD_CPUTIME_ID 3
121# endif
122#endif
123
155static double (*nvtime)(); /* so why doesn't it take void? */ 124static double (*nvtime)(); /* so why doesn't it take void? */
125static void (*u2time)(pTHX_ UV ret[2]);
156 126
157/* we hijack an hopefully unused CV flag for our purposes */ 127/* we hijack an hopefully unused CV flag for our purposes */
158#define CVf_SLF 0x4000 128#define CVf_SLF 0x4000
159static OP *pp_slf (pTHX); 129static OP *pp_slf (pTHX);
160 130
… …
164static AV *main_mainstack; /* used to differentiate between $main and others */ 134static AV *main_mainstack; /* used to differentiate between $main and others */
165static JMPENV *main_top_env; 135static JMPENV *main_top_env;
166static HV *coro_state_stash, *coro_stash; 136static HV *coro_state_stash, *coro_stash;
167static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 137static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
168 138
139static AV *av_destroy; /* destruction queue */
140static SV *sv_manager; /* the manager coro */
141static SV *sv_idle; /* $Coro::idle */
142
169static GV *irsgv; /* $/ */ 143static GV *irsgv; /* $/ */
170static GV *stdoutgv; /* *STDOUT */ 144static GV *stdoutgv; /* *STDOUT */
171static SV *rv_diehook; 145static SV *rv_diehook;
172static SV *rv_warnhook; 146static SV *rv_warnhook;
173static HV *hv_sig; /* %SIG */ 147static HV *hv_sig; /* %SIG */
174 148
175/* async_pool helper stuff */ 149/* async_pool helper stuff */
176static SV *sv_pool_rss; 150static SV *sv_pool_rss;
177static SV *sv_pool_size; 151static SV *sv_pool_size;
152static SV *sv_async_pool_idle; /* description string */
178static AV *av_async_pool; 153static AV *av_async_pool; /* idle pool */
154static SV *sv_Coro; /* class string */
155static CV *cv_pool_handler;
179 156
180/* Coro::AnyEvent */ 157/* Coro::AnyEvent */
181static SV *sv_activity; 158static SV *sv_activity;
159
160/* enable processtime/realtime profiling */
161static char enable_times;
162typedef U32 coro_ts[2];
163static coro_ts time_real, time_cpu;
164static char times_valid;
182 165
183static struct coro_cctx *cctx_first; 166static struct coro_cctx *cctx_first;
184static int cctx_count, cctx_idle; 167static int cctx_count, cctx_idle;
185 168
186enum { 169enum {
… …
212 int valgrind_id; 195 int valgrind_id;
213#endif 196#endif
214 unsigned char flags; 197 unsigned char flags;
215} coro_cctx; 198} coro_cctx;
216 199
200coro_cctx *cctx_current; /* the currently running cctx */
201
202/*****************************************************************************/
203
217enum { 204enum {
218 CF_RUNNING = 0x0001, /* coroutine is running */ 205 CF_RUNNING = 0x0001, /* coroutine is running */
219 CF_READY = 0x0002, /* coroutine is ready */ 206 CF_READY = 0x0002, /* coroutine is ready */
220 CF_NEW = 0x0004, /* has never been switched to */ 207 CF_NEW = 0x0004, /* has never been switched to */
221 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 208 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
209 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
222}; 210};
223 211
224/* the structure where most of the perl state is stored, overlaid on the cxstack */ 212/* the structure where most of the perl state is stored, overlaid on the cxstack */
225typedef struct 213typedef struct
226{ 214{
227 SV *defsv; 215 SV *defsv;
228 AV *defav; 216 AV *defav;
229 SV *errsv; 217 SV *errsv;
230 SV *irsgv; 218 SV *irsgv;
219 HV *hinthv;
231#define VAR(name,type) type name; 220#define VAR(name,type) type name;
232# include "state.h" 221# include "state.h"
233#undef VAR 222#undef VAR
234} perl_slots; 223} perl_slots;
235 224
… …
238/* this is a structure representing a perl-level coroutine */ 227/* this is a structure representing a perl-level coroutine */
239struct coro { 228struct coro {
240 /* the C coroutine allocated to this perl coroutine, if any */ 229 /* the C coroutine allocated to this perl coroutine, if any */
241 coro_cctx *cctx; 230 coro_cctx *cctx;
242 231
232 /* ready queue */
233 struct coro *next_ready;
234
243 /* state data */ 235 /* state data */
244 struct CoroSLF slf_frame; /* saved slf frame */ 236 struct CoroSLF slf_frame; /* saved slf frame */
245 AV *mainstack; 237 AV *mainstack;
246 perl_slots *slot; /* basically the saved sp */ 238 perl_slots *slot; /* basically the saved sp */
247 239
240 CV *startcv; /* the CV to execute */
248 AV *args; /* data associated with this coroutine (initial args) */ 241 AV *args; /* data associated with this coroutine (initial args) */
249 int refcnt; /* coroutines are refcounted, yes */ 242 int refcnt; /* coroutines are refcounted, yes */
250 int flags; /* CF_ flags */ 243 int flags; /* CF_ flags */
251 HV *hv; /* the perl hash associated with this coro, if any */ 244 HV *hv; /* the perl hash associated with this coro, if any */
252 void (*on_destroy)(pTHX_ struct coro *coro); 245 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
253 246
254 /* statistics */ 247 /* statistics */
255 int usecount; /* number of transfers to this coro */ 248 int usecount; /* number of transfers to this coro */
256 249
257 /* coro process data */ 250 /* coro process data */
258 int prio; 251 int prio;
259 SV *throw; /* exception to be thrown */ 252 SV *except; /* exception to be thrown */
253 SV *rouse_cb;
260 254
261 /* async_pool */ 255 /* async_pool */
262 SV *saved_deffh; 256 SV *saved_deffh;
257 SV *invoke_cb;
258 AV *invoke_av;
259
260 /* on_enter/on_leave */
261 AV *on_enter;
262 AV *on_leave;
263
264 /* swap_sv */
265 AV *swap_sv;
266
267 /* times */
268 coro_ts t_cpu, t_real;
263 269
264 /* linked list */ 270 /* linked list */
265 struct coro *next, *prev; 271 struct coro *next, *prev;
266}; 272};
267 273
… …
270 276
271/* the following variables are effectively part of the perl context */ 277/* the following variables are effectively part of the perl context */
272/* and get copied between struct coro and these variables */ 278/* and get copied between struct coro and these variables */
273/* the mainr easonw e don't support windows process emulation */ 279/* the mainr easonw e don't support windows process emulation */
274static struct CoroSLF slf_frame; /* the current slf frame */ 280static struct CoroSLF slf_frame; /* the current slf frame */
275static SV *coro_throw;
276 281
277/** Coro ********************************************************************/ 282/** Coro ********************************************************************/
278 283
279#define PRIO_MAX 3 284#define CORO_PRIO_MAX 3
280#define PRIO_HIGH 1 285#define CORO_PRIO_HIGH 1
281#define PRIO_NORMAL 0 286#define CORO_PRIO_NORMAL 0
282#define PRIO_LOW -1 287#define CORO_PRIO_LOW -1
283#define PRIO_IDLE -3 288#define CORO_PRIO_IDLE -3
284#define PRIO_MIN -4 289#define CORO_PRIO_MIN -4
285 290
286/* for Coro.pm */ 291/* for Coro.pm */
287static SV *coro_current; 292static SV *coro_current;
288static SV *coro_readyhook; 293static SV *coro_readyhook;
289static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 294static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
295static CV *cv_coro_run, *cv_coro_terminate;
290static struct coro *coro_first; 296static struct coro *coro_first;
291#define coro_nready coroapi.nready 297#define coro_nready coroapi.nready
298
299/** Coro::Select ************************************************************/
300
301static OP *(*coro_old_pp_sselect) (pTHX);
302static SV *coro_select_select;
303
304/* horrible hack, but if it works... */
305static OP *
306coro_pp_sselect (pTHX)
307{
308 dSP;
309 PUSHMARK (SP - 4); /* fake argument list */
310 XPUSHs (coro_select_select);
311 PUTBACK;
312
313 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
314 PL_op->op_flags |= OPf_STACKED;
315 PL_op->op_private = 0;
316 return PL_ppaddr [OP_ENTERSUB](aTHX);
317}
318
319/** time stuff **************************************************************/
320
321#ifdef HAS_GETTIMEOFDAY
322
323static void
324coro_u2time (pTHX_ UV ret[2])
325{
326 struct timeval tv;
327 gettimeofday (&tv, 0);
328
329 ret [0] = tv.tv_sec;
330 ret [1] = tv.tv_usec;
331}
332
333static double
334coro_nvtime ()
335{
336 struct timeval tv;
337 gettimeofday (&tv, 0);
338
339 return tv.tv_sec + tv.tv_usec * 1e-6;
340}
341
342static void
343time_init (void)
344{
345 nvtime = coro_nvtime;
346 u2time = coro_u2time;
347}
348
349#else
350
351static void
352time_init (void)
353{
354 SV **svp;
355
356 require_pv ("Time::HiRes");
357
358 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
359
360 if (!svp) croak ("Time::HiRes is required");
361 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
362
363 nvtime = INT2PTR (double (*)(), SvIV (*svp));
364
365 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
366 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
367}
368
369#endif
292 370
293/** lowlevel stuff **********************************************************/ 371/** lowlevel stuff **********************************************************/
294 372
295static SV * 373static SV *
296coro_get_sv (pTHX_ const char *name, int create) 374coro_get_sv (pTHX_ const char *name, int create)
… …
320 get_hv (name, create); 398 get_hv (name, create);
321#endif 399#endif
322 return get_hv (name, create); 400 return get_hv (name, create);
323} 401}
324 402
403INLINE void
404coro_times_update ()
405{
406#ifdef coro_clock_gettime
407 struct timespec ts;
408
409 ts.tv_sec = ts.tv_nsec = 0;
410 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
411 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
412
413 ts.tv_sec = ts.tv_nsec = 0;
414 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
415 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
416#else
417 dTHX;
418 UV tv[2];
419
420 u2time (aTHX_ tv);
421 time_real [0] = tv [0];
422 time_real [1] = tv [1] * 1000;
423#endif
424}
425
426INLINE void
427coro_times_add (struct coro *c)
428{
429 c->t_real [1] += time_real [1];
430 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
431 c->t_real [0] += time_real [0];
432
433 c->t_cpu [1] += time_cpu [1];
434 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
435 c->t_cpu [0] += time_cpu [0];
436}
437
438INLINE void
439coro_times_sub (struct coro *c)
440{
441 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
442 c->t_real [1] -= time_real [1];
443 c->t_real [0] -= time_real [0];
444
445 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
446 c->t_cpu [1] -= time_cpu [1];
447 c->t_cpu [0] -= time_cpu [0];
448}
449
450/*****************************************************************************/
451/* magic glue */
452
453#define CORO_MAGIC_type_cv 26
454#define CORO_MAGIC_type_state PERL_MAGIC_ext
455
456#define CORO_MAGIC_NN(sv, type) \
457 (expect_true (SvMAGIC (sv)->mg_type == type) \
458 ? SvMAGIC (sv) \
459 : mg_find (sv, type))
460
461#define CORO_MAGIC(sv, type) \
462 (expect_true (SvMAGIC (sv)) \
463 ? CORO_MAGIC_NN (sv, type) \
464 : 0)
465
466#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
467#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
468
469INLINE struct coro *
470SvSTATE_ (pTHX_ SV *coro)
471{
472 HV *stash;
473 MAGIC *mg;
474
475 if (SvROK (coro))
476 coro = SvRV (coro);
477
478 if (expect_false (SvTYPE (coro) != SVt_PVHV))
479 croak ("Coro::State object required");
480
481 stash = SvSTASH (coro);
482 if (expect_false (stash != coro_stash && stash != coro_state_stash))
483 {
484 /* very slow, but rare, check */
485 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
486 croak ("Coro::State object required");
487 }
488
489 mg = CORO_MAGIC_state (coro);
490 return (struct coro *)mg->mg_ptr;
491}
492
493#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
494
495/* faster than SvSTATE, but expects a coroutine hv */
496#define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr)
497#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
498
499/*****************************************************************************/
500/* padlist management and caching */
501
325static AV * 502static AV *
326coro_clone_padlist (pTHX_ CV *cv) 503coro_derive_padlist (pTHX_ CV *cv)
327{ 504{
328 AV *padlist = CvPADLIST (cv); 505 AV *padlist = CvPADLIST (cv);
329 AV *newpadlist, *newpad; 506 AV *newpadlist, *newpad;
330 507
331 newpadlist = newAV (); 508 newpadlist = newAV ();
… …
336 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); 513 Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1);
337#endif 514#endif
338 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; 515 newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)];
339 --AvFILLp (padlist); 516 --AvFILLp (padlist);
340 517
341 av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); 518 av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0]));
342 av_store (newpadlist, 1, (SV *)newpad); 519 av_store (newpadlist, 1, (SV *)newpad);
343 520
344 return newpadlist; 521 return newpadlist;
345} 522}
346 523
347static void 524static void
348free_padlist (pTHX_ AV *padlist) 525free_padlist (pTHX_ AV *padlist)
349{ 526{
350 /* may be during global destruction */ 527 /* may be during global destruction */
351 if (SvREFCNT (padlist)) 528 if (!IN_DESTRUCT)
352 { 529 {
353 I32 i = AvFILLp (padlist); 530 I32 i = AvFILLp (padlist);
354 while (i >= 0) 531
532 while (i > 0) /* special-case index 0 */
355 { 533 {
356 SV **svp = av_fetch (padlist, i--, FALSE); 534 /* we try to be extra-careful here */
357 if (svp) 535 AV *av = (AV *)AvARRAY (padlist)[i--];
358 { 536 I32 j = AvFILLp (av);
359 SV *sv; 537
360 while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) 538 while (j >= 0)
539 SvREFCNT_dec (AvARRAY (av)[j--]);
540
541 AvFILLp (av) = -1;
361 SvREFCNT_dec (sv); 542 SvREFCNT_dec (av);
362
363 SvREFCNT_dec (*svp);
364 }
365 } 543 }
366 544
545 SvREFCNT_dec (AvARRAY (padlist)[0]);
546
547 AvFILLp (padlist) = -1;
367 SvREFCNT_dec ((SV*)padlist); 548 SvREFCNT_dec ((SV*)padlist);
368 } 549 }
369} 550}
370 551
371static int 552static int
372coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 553coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
373{ 554{
374 AV *padlist; 555 AV *padlist;
375 AV *av = (AV *)mg->mg_obj; 556 AV *av = (AV *)mg->mg_obj;
557
558 /* perl manages to free our internal AV and _then_ call us */
559 if (IN_DESTRUCT)
560 return 0;
376 561
377 /* casting is fun. */ 562 /* casting is fun. */
378 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 563 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
379 free_padlist (aTHX_ padlist); 564 free_padlist (aTHX_ padlist);
380 565
381 SvREFCNT_dec (av); /* sv_magicext increased the refcount */ 566 SvREFCNT_dec (av); /* sv_magicext increased the refcount */
382 567
383 return 0; 568 return 0;
384} 569}
385
386#define CORO_MAGIC_type_cv 26
387#define CORO_MAGIC_type_state PERL_MAGIC_ext
388 570
389static MGVTBL coro_cv_vtbl = { 571static MGVTBL coro_cv_vtbl = {
390 0, 0, 0, 0, 572 0, 0, 0, 0,
391 coro_cv_free 573 coro_cv_free
392}; 574};
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))
436 575
437/* the next two functions merely cache the padlists */ 576/* the next two functions merely cache the padlists */
438static void 577static void
439get_padlist (pTHX_ CV *cv) 578get_padlist (pTHX_ CV *cv)
440{ 579{
… …
446 else 585 else
447 { 586 {
448#if CORO_PREFER_PERL_FUNCTIONS 587#if CORO_PREFER_PERL_FUNCTIONS
449 /* this is probably cleaner? but also slower! */ 588 /* this is probably cleaner? but also slower! */
450 /* in practise, it seems to be less stable */ 589 /* in practise, it seems to be less stable */
451 CV *cp = Perl_cv_clone (cv); 590 CV *cp = Perl_cv_clone (aTHX_ cv);
452 CvPADLIST (cv) = CvPADLIST (cp); 591 CvPADLIST (cv) = CvPADLIST (cp);
453 CvPADLIST (cp) = 0; 592 CvPADLIST (cp) = 0;
454 SvREFCNT_dec (cp); 593 SvREFCNT_dec (cp);
455#else 594#else
456 CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); 595 CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv);
457#endif 596#endif
458 } 597 }
459} 598}
460 599
461static void 600static void
… …
468 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); 607 mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0);
469 608
470 av = (AV *)mg->mg_obj; 609 av = (AV *)mg->mg_obj;
471 610
472 if (expect_false (AvFILLp (av) >= AvMAX (av))) 611 if (expect_false (AvFILLp (av) >= AvMAX (av)))
473 av_extend (av, AvMAX (av) + 1); 612 av_extend (av, AvFILLp (av) + 1);
474 613
475 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 614 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
476} 615}
477 616
478/** load & save, init *******************************************************/ 617/** load & save, init *******************************************************/
618
619/* swap sv heads, at least logically */
620static void
621swap_svs (pTHX_ Coro__State c)
622{
623 int i;
624
625 for (i = 0; i <= AvFILLp (c->swap_sv); )
626 {
627 SV *a = AvARRAY (c->swap_sv)[i++];
628 SV *b = AvARRAY (c->swap_sv)[i++];
629
630 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
631 SV tmp;
632
633 /* swap sv_any */
634 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
635
636 /* swap sv_flags */
637 SvFLAGS (&tmp) = SvFLAGS (a);
638 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
639 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
640
641#if PERL_VERSION_ATLEAST (5,10,0)
642 /* perl 5.10 complicates this _quite_ a bit, but it also is
643 * much faster, so no quarrels here. alternatively, we could
644 * sv_upgrade to avoid this.
645 */
646 {
647 /* swap sv_u */
648 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
649
650 /* if SvANY points to the head, we need to adjust the pointers,
651 * as the pointer for a still points to b, and maybe vice versa.
652 */
653 #define svany_in_head(type) \
654 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
655
656 if (svany_in_head (SvTYPE (a)))
657 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
658
659 if (svany_in_head (SvTYPE (b)))
660 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
661 }
662#endif
663 }
664}
665
666#define SWAP_SVS(coro) \
667 if (expect_false ((coro)->swap_sv)) \
668 swap_svs (aTHX_ (coro))
669
670static void
671on_enterleave_call (pTHX_ SV *cb);
479 672
480static void 673static void
481load_perl (pTHX_ Coro__State c) 674load_perl (pTHX_ Coro__State c)
482{ 675{
483 perl_slots *slot = c->slot; 676 perl_slots *slot = c->slot;
484 c->slot = 0; 677 c->slot = 0;
485 678
486 PL_mainstack = c->mainstack; 679 PL_mainstack = c->mainstack;
487 680
488 GvSV (PL_defgv) = slot->defsv; 681 GvSV (PL_defgv) = slot->defsv;
489 GvAV (PL_defgv) = slot->defav; 682 GvAV (PL_defgv) = slot->defav;
490 GvSV (PL_errgv) = slot->errsv; 683 GvSV (PL_errgv) = slot->errsv;
491 GvSV (irsgv) = slot->irsgv; 684 GvSV (irsgv) = slot->irsgv;
685 GvHV (PL_hintgv) = slot->hinthv;
492 686
493 #define VAR(name,type) PL_ ## name = slot->name; 687 #define VAR(name,type) PL_ ## name = slot->name;
494 # include "state.h" 688 # include "state.h"
495 #undef VAR 689 #undef VAR
496 690
… …
509 703
510 PUTBACK; 704 PUTBACK;
511 } 705 }
512 706
513 slf_frame = c->slf_frame; 707 slf_frame = c->slf_frame;
514 coro_throw = c->throw; 708 CORO_THROW = c->except;
709
710 if (expect_false (enable_times))
711 {
712 if (expect_false (!times_valid))
713 coro_times_update ();
714
715 coro_times_sub (c);
716 }
717
718 if (expect_false (c->on_enter))
719 {
720 int i;
721
722 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
723 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
724 }
725
726 SWAP_SVS (c);
515} 727}
516 728
517static void 729static void
518save_perl (pTHX_ Coro__State c) 730save_perl (pTHX_ Coro__State c)
519{ 731{
520 c->throw = coro_throw; 732 SWAP_SVS (c);
733
734 if (expect_false (c->on_leave))
735 {
736 int i;
737
738 for (i = AvFILLp (c->on_leave); i >= 0; --i)
739 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
740 }
741
742 times_valid = 0;
743
744 if (expect_false (enable_times))
745 {
746 coro_times_update (); times_valid = 1;
747 coro_times_add (c);
748 }
749
750 c->except = CORO_THROW;
521 c->slf_frame = slf_frame; 751 c->slf_frame = slf_frame;
522 752
523 { 753 {
524 dSP; 754 dSP;
525 I32 cxix = cxstack_ix; 755 I32 cxix = cxstack_ix;
… …
537 { 767 {
538 while (expect_true (cxix >= 0)) 768 while (expect_true (cxix >= 0))
539 { 769 {
540 PERL_CONTEXT *cx = &ccstk[cxix--]; 770 PERL_CONTEXT *cx = &ccstk[cxix--];
541 771
542 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 772 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
543 { 773 {
544 CV *cv = cx->blk_sub.cv; 774 CV *cv = cx->blk_sub.cv;
545 775
546 if (expect_true (CvDEPTH (cv))) 776 if (expect_true (CvDEPTH (cv)))
547 { 777 {
… …
571 /* we manually unroll here, as usually 2 slots is enough */ 801 /* we manually unroll here, as usually 2 slots is enough */
572 if (SLOT_COUNT >= 1) CXINC; 802 if (SLOT_COUNT >= 1) CXINC;
573 if (SLOT_COUNT >= 2) CXINC; 803 if (SLOT_COUNT >= 2) CXINC;
574 if (SLOT_COUNT >= 3) CXINC; 804 if (SLOT_COUNT >= 3) CXINC;
575 { 805 {
576 int i; 806 unsigned int i;
577 for (i = 3; i < SLOT_COUNT; ++i) 807 for (i = 3; i < SLOT_COUNT; ++i)
578 CXINC; 808 CXINC;
579 } 809 }
580 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 810 cxstack_ix -= SLOT_COUNT; /* undo allocation */
581 811
582 c->mainstack = PL_mainstack; 812 c->mainstack = PL_mainstack;
583 813
584 { 814 {
585 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 815 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
586 816
587 slot->defav = GvAV (PL_defgv); 817 slot->defav = GvAV (PL_defgv);
588 slot->defsv = DEFSV; 818 slot->defsv = DEFSV;
589 slot->errsv = ERRSV; 819 slot->errsv = ERRSV;
590 slot->irsgv = GvSV (irsgv); 820 slot->irsgv = GvSV (irsgv);
821 slot->hinthv = GvHV (PL_hintgv);
591 822
592 #define VAR(name,type) slot->name = PL_ ## name; 823 #define VAR(name,type) slot->name = PL_ ## name;
593 # include "state.h" 824 # include "state.h"
594 #undef VAR 825 #undef VAR
595 } 826 }
… …
600 * of perl.c:init_stacks, except that it uses less memory 831 * of perl.c:init_stacks, except that it uses less memory
601 * on the (sometimes correct) assumption that coroutines do 832 * on the (sometimes correct) assumption that coroutines do
602 * not usually need a lot of stackspace. 833 * not usually need a lot of stackspace.
603 */ 834 */
604#if CORO_PREFER_PERL_FUNCTIONS 835#if CORO_PREFER_PERL_FUNCTIONS
605# define coro_init_stacks init_stacks 836# define coro_init_stacks(thx) init_stacks ()
606#else 837#else
607static void 838static void
608coro_init_stacks (pTHX) 839coro_init_stacks (pTHX)
609{ 840{
610 PL_curstackinfo = new_stackinfo(32, 8); 841 PL_curstackinfo = new_stackinfo(32, 8);
… …
673#if !PERL_VERSION_ATLEAST (5,10,0) 904#if !PERL_VERSION_ATLEAST (5,10,0)
674 Safefree (PL_retstack); 905 Safefree (PL_retstack);
675#endif 906#endif
676} 907}
677 908
909#define CORO_RSS \
910 rss += sizeof (SYM (curstackinfo)); \
911 rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \
912 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \
913 rss += SYM (tmps_max) * sizeof (SV *); \
914 rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \
915 rss += SYM (scopestack_max) * sizeof (I32); \
916 rss += SYM (savestack_max) * sizeof (ANY);
917
678static size_t 918static size_t
679coro_rss (pTHX_ struct coro *coro) 919coro_rss (pTHX_ struct coro *coro)
680{ 920{
681 size_t rss = sizeof (*coro); 921 size_t rss = sizeof (*coro);
682 922
683 if (coro->mainstack) 923 if (coro->mainstack)
684 { 924 {
685 perl_slots tmp_slot;
686 perl_slots *slot;
687
688 if (coro->flags & CF_RUNNING) 925 if (coro->flags & CF_RUNNING)
689 { 926 {
690 slot = &tmp_slot; 927 #define SYM(sym) PL_ ## sym
691 928 CORO_RSS;
692 #define VAR(name,type) slot->name = PL_ ## name;
693 # include "state.h"
694 #undef VAR 929 #undef SYM
695 } 930 }
696 else 931 else
697 slot = coro->slot;
698
699 if (slot)
700 { 932 {
701 rss += sizeof (slot->curstackinfo); 933 #define SYM(sym) coro->slot->sym
702 rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); 934 CORO_RSS;
703 rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); 935 #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 } 936 }
713 } 937 }
714 938
715 return rss; 939 return rss;
716} 940}
… …
729#endif 953#endif
730 954
731/* 955/*
732 * This overrides the default magic get method of %SIG elements. 956 * 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 957 * 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 958 * and instead of trying to save and restore the hash elements, we just provide
735 * readback here. 959 * 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 */ 960 */
740static int 961static int
741coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 962coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
742{ 963{
743 const char *s = MgPV_nolen_const (mg); 964 const char *s = MgPV_nolen_const (mg);
… …
796 if (strEQ (s, "__WARN__")) svp = &PL_warnhook; 1017 if (strEQ (s, "__WARN__")) svp = &PL_warnhook;
797 1018
798 if (svp) 1019 if (svp)
799 { 1020 {
800 SV *old = *svp; 1021 SV *old = *svp;
801 *svp = newSVsv (sv); 1022 *svp = SvOK (sv) ? newSVsv (sv) : 0;
802 SvREFCNT_dec (old); 1023 SvREFCNT_dec (old);
803 return 0; 1024 return 0;
804 } 1025 }
805 } 1026 }
806 1027
… …
818slf_check_nop (pTHX_ struct CoroSLF *frame) 1039slf_check_nop (pTHX_ struct CoroSLF *frame)
819{ 1040{
820 return 0; 1041 return 0;
821} 1042}
822 1043
823static UNOP coro_setup_op; 1044static int
1045slf_check_repeat (pTHX_ struct CoroSLF *frame)
1046{
1047 return 1;
1048}
1049
1050static UNOP init_perl_op;
824 1051
825static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1052static void NOINLINE /* noinline to keep it out of the transfer fast path */
826coro_setup (pTHX_ struct coro *coro) 1053init_perl (pTHX_ struct coro *coro)
827{ 1054{
828 /* 1055 /*
829 * emulate part of the perl startup here. 1056 * emulate part of the perl startup here.
830 */ 1057 */
831 coro_init_stacks (aTHX); 1058 coro_init_stacks (aTHX);
832 1059
833 PL_runops = RUNOPS_DEFAULT; 1060 PL_runops = RUNOPS_DEFAULT;
834 PL_curcop = &PL_compiling; 1061 PL_curcop = &PL_compiling;
835 PL_in_eval = EVAL_NULL; 1062 PL_in_eval = EVAL_NULL;
836 PL_comppad = 0; 1063 PL_comppad = 0;
1064 PL_comppad_name = 0;
1065 PL_comppad_name_fill = 0;
1066 PL_comppad_name_floor = 0;
837 PL_curpm = 0; 1067 PL_curpm = 0;
838 PL_curpad = 0; 1068 PL_curpad = 0;
839 PL_localizing = 0; 1069 PL_localizing = 0;
840 PL_dirty = 0;
841 PL_restartop = 0; 1070 PL_restartop = 0;
842#if PERL_VERSION_ATLEAST (5,10,0) 1071#if PERL_VERSION_ATLEAST (5,10,0)
843 PL_parser = 0; 1072 PL_parser = 0;
844#endif 1073#endif
1074 PL_hints = 0;
845 1075
846 /* recreate the die/warn hooks */ 1076 /* recreate the die/warn hooks */
847 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1077 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook );
848 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1078 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook);
849 1079
850 GvSV (PL_defgv) = newSV (0); 1080 GvSV (PL_defgv) = newSV (0);
851 GvAV (PL_defgv) = coro->args; coro->args = 0; 1081 GvAV (PL_defgv) = coro->args; coro->args = 0;
852 GvSV (PL_errgv) = newSV (0); 1082 GvSV (PL_errgv) = newSV (0);
853 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1083 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
1084 GvHV (PL_hintgv) = 0;
854 PL_rs = newSVsv (GvSV (irsgv)); 1085 PL_rs = newSVsv (GvSV (irsgv));
855 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); 1086 PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv);
856 1087
857 { 1088 {
858 dSP; 1089 dSP;
859 UNOP myop; 1090 UNOP myop;
860 1091
861 Zero (&myop, 1, UNOP); 1092 Zero (&myop, 1, UNOP);
862 myop.op_next = Nullop; 1093 myop.op_next = Nullop;
1094 myop.op_type = OP_ENTERSUB;
863 myop.op_flags = OPf_WANT_VOID; 1095 myop.op_flags = OPf_WANT_VOID;
864 1096
865 PUSHMARK (SP); 1097 PUSHMARK (SP);
866 XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); 1098 PUSHs ((SV *)coro->startcv);
867 PUTBACK; 1099 PUTBACK;
868 PL_op = (OP *)&myop; 1100 PL_op = (OP *)&myop;
869 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); 1101 PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
870 SPAGAIN;
871 } 1102 }
872 1103
873 /* this newly created coroutine might be run on an existing cctx which most 1104 /* 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. 1105 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
875 */ 1106 */
876 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1107 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
877 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1108 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
878 1109
879 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1110 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
880 coro_setup_op.op_type = OP_CUSTOM; 1111 init_perl_op.op_next = PL_op;
1112 init_perl_op.op_type = OP_ENTERSUB;
881 coro_setup_op.op_ppaddr = pp_slf; 1113 init_perl_op.op_ppaddr = pp_slf;
882 coro_setup_op.op_next = PL_op; 1114 /* no flags etc. required, as an init function won't be called */
883 1115
884 PL_op = (OP *)&coro_setup_op; 1116 PL_op = (OP *)&init_perl_op;
885 1117
886 /* copy throw, in case it was set before coro_setup */ 1118 /* copy throw, in case it was set before init_perl */
887 coro_throw = coro->throw; 1119 CORO_THROW = coro->except;
888}
889 1120
1121 SWAP_SVS (coro);
1122
1123 if (expect_false (enable_times))
1124 {
1125 coro_times_update ();
1126 coro_times_sub (coro);
1127 }
1128}
1129
890static void 1130static void
891coro_destruct (pTHX_ struct coro *coro) 1131coro_unwind_stacks (pTHX)
892{ 1132{
893 if (!IN_DESTRUCT) 1133 if (!IN_DESTRUCT)
894 { 1134 {
895 /* restore all saved variables and stuff */ 1135 /* restore all saved variables and stuff */
896 LEAVE_SCOPE (0); 1136 LEAVE_SCOPE (0);
… …
904 POPSTACK_TO (PL_mainstack); 1144 POPSTACK_TO (PL_mainstack);
905 1145
906 /* unwind main stack */ 1146 /* unwind main stack */
907 dounwind (-1); 1147 dounwind (-1);
908 } 1148 }
1149}
909 1150
910 SvREFCNT_dec (GvSV (PL_defgv)); 1151static void
911 SvREFCNT_dec (GvAV (PL_defgv)); 1152destroy_perl (pTHX_ struct coro *coro)
912 SvREFCNT_dec (GvSV (PL_errgv)); 1153{
913 SvREFCNT_dec (PL_defoutgv); 1154 SV *svf [9];
914 SvREFCNT_dec (PL_rs);
915 SvREFCNT_dec (GvSV (irsgv));
916 1155
917 SvREFCNT_dec (PL_diehook);
918 SvREFCNT_dec (PL_warnhook);
919 1156 {
1157 struct coro *current = SvSTATE_current;
1158
1159 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1160
1161 save_perl (aTHX_ current);
1162 load_perl (aTHX_ coro);
1163
1164 coro_unwind_stacks (aTHX);
1165 coro_destruct_stacks (aTHX);
1166
1167 /* restore swapped sv's */
1168 SWAP_SVS (coro);
1169
1170 // now save some sv's to be free'd later
1171 svf [0] = GvSV (PL_defgv);
1172 svf [1] = (SV *)GvAV (PL_defgv);
1173 svf [2] = GvSV (PL_errgv);
1174 svf [3] = (SV *)PL_defoutgv;
1175 svf [4] = PL_rs;
1176 svf [5] = GvSV (irsgv);
1177 svf [6] = (SV *)GvHV (PL_hintgv);
1178 svf [7] = PL_diehook;
1179 svf [8] = PL_warnhook;
1180 assert (9 == sizeof (svf) / sizeof (*svf));
1181
1182 load_perl (aTHX_ current);
1183 }
1184
1185 {
1186 unsigned int i;
1187
1188 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1189 SvREFCNT_dec (svf [i]);
1190
920 SvREFCNT_dec (coro->saved_deffh); 1191 SvREFCNT_dec (coro->saved_deffh);
921 SvREFCNT_dec (coro_throw); 1192 SvREFCNT_dec (coro->rouse_cb);
922 1193 SvREFCNT_dec (coro->invoke_cb);
923 coro_destruct_stacks (aTHX); 1194 SvREFCNT_dec (coro->invoke_av);
1195 }
924} 1196}
925 1197
926INLINE void 1198INLINE void
927free_coro_mortal (pTHX) 1199free_coro_mortal (pTHX)
928{ 1200{
… …
936static int 1208static int
937runops_trace (pTHX) 1209runops_trace (pTHX)
938{ 1210{
939 COP *oldcop = 0; 1211 COP *oldcop = 0;
940 int oldcxix = -2; 1212 int oldcxix = -2;
941 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
942 coro_cctx *cctx = coro->cctx;
943 1213
944 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 1214 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
945 { 1215 {
946 PERL_ASYNC_CHECK (); 1216 PERL_ASYNC_CHECK ();
947 1217
948 if (cctx->flags & CC_TRACE_ALL) 1218 if (cctx_current->flags & CC_TRACE_ALL)
949 { 1219 {
950 if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) 1220 if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB)
951 { 1221 {
952 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1222 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
953 SV **bot, **top; 1223 SV **bot, **top;
954 AV *av = newAV (); /* return values */ 1224 AV *av = newAV (); /* return values */
955 SV **cb; 1225 SV **cb;
… …
992 1262
993 if (PL_curcop != &PL_compiling) 1263 if (PL_curcop != &PL_compiling)
994 { 1264 {
995 SV **cb; 1265 SV **cb;
996 1266
997 if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) 1267 if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB)
998 { 1268 {
999 PERL_CONTEXT *cx = &cxstack[cxstack_ix]; 1269 PERL_CONTEXT *cx = &cxstack[cxstack_ix];
1000 1270
1001 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) 1271 if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix)
1002 { 1272 {
1003 runops_proc_t old_runops = PL_runops;
1004 dSP; 1273 dSP;
1005 GV *gv = CvGV (cx->blk_sub.cv); 1274 GV *gv = CvGV (cx->blk_sub.cv);
1006 SV *fullname = sv_2mortal (newSV (0)); 1275 SV *fullname = sv_2mortal (newSV (0));
1007 1276
1008 if (isGV (gv)) 1277 if (isGV (gv))
… …
1013 SAVETMPS; 1282 SAVETMPS;
1014 EXTEND (SP, 3); 1283 EXTEND (SP, 3);
1015 PUSHMARK (SP); 1284 PUSHMARK (SP);
1016 PUSHs (&PL_sv_yes); 1285 PUSHs (&PL_sv_yes);
1017 PUSHs (fullname); 1286 PUSHs (fullname);
1018 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); 1287 PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef);
1019 PUTBACK; 1288 PUTBACK;
1020 cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); 1289 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); 1290 if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
1022 SPAGAIN; 1291 SPAGAIN;
1023 FREETMPS; 1292 FREETMPS;
… …
1026 } 1295 }
1027 1296
1028 oldcxix = cxstack_ix; 1297 oldcxix = cxstack_ix;
1029 } 1298 }
1030 1299
1031 if (cctx->flags & CC_TRACE_LINE) 1300 if (cctx_current->flags & CC_TRACE_LINE)
1032 { 1301 {
1033 dSP; 1302 dSP;
1034 1303
1035 PL_runops = RUNOPS_DEFAULT; 1304 PL_runops = RUNOPS_DEFAULT;
1036 ENTER; 1305 ENTER;
… …
1055 1324
1056 TAINT_NOT; 1325 TAINT_NOT;
1057 return 0; 1326 return 0;
1058} 1327}
1059 1328
1060static struct coro_cctx *cctx_ssl_cctx;
1061static struct CoroSLF cctx_ssl_frame; 1329static struct CoroSLF cctx_ssl_frame;
1062 1330
1063static void 1331static void
1064slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) 1332slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta)
1065{ 1333{
1066 ta->prev = (struct coro *)cctx_ssl_cctx;
1067 ta->next = 0; 1334 ta->prev = 0;
1068} 1335}
1069 1336
1070static int 1337static int
1071slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) 1338slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame)
1072{ 1339{
1073 *frame = cctx_ssl_frame; 1340 *frame = cctx_ssl_frame;
1074 1341
1075 return 0; 1342 return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */
1076} 1343}
1077 1344
1078/* initialises PL_top_env and injects a pseudo-slf-call to sett he stacklevel */ 1345/* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */
1079static void NOINLINE 1346static void NOINLINE
1080cctx_prepare (pTHX_ coro_cctx *cctx) 1347cctx_prepare (pTHX)
1081{ 1348{
1082 PL_top_env = &PL_start_env; 1349 PL_top_env = &PL_start_env;
1083 1350
1084 if (cctx->flags & CC_TRACE) 1351 if (cctx_current->flags & CC_TRACE)
1085 PL_runops = runops_trace; 1352 PL_runops = runops_trace;
1086 1353
1087 /* we already must be in an SLF call, there is no other valid way 1354 /* we already must be executing an SLF op, there is no other valid way
1088 * that can lead to creation of a new cctx */ 1355 * that can lead to creation of a new cctx */
1089 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", 1356 assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)",
1090 slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); 1357 slf_frame.prepare && PL_op->op_ppaddr == pp_slf));
1091 1358
1092 cctx_ssl_cctx = cctx; 1359 /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */
1093 cctx_ssl_frame = slf_frame; 1360 cctx_ssl_frame = slf_frame;
1094 1361
1095 slf_frame.prepare = slf_prepare_set_stacklevel; 1362 slf_frame.prepare = slf_prepare_set_stacklevel;
1096 slf_frame.check = slf_check_set_stacklevel; 1363 slf_frame.check = slf_check_set_stacklevel;
1097} 1364}
… …
1120 /* normally we would need to skip the entersub here */ 1387 /* normally we would need to skip the entersub here */
1121 /* not doing so will re-execute it, which is exactly what we want */ 1388 /* not doing so will re-execute it, which is exactly what we want */
1122 /* PL_nop = PL_nop->op_next */ 1389 /* PL_nop = PL_nop->op_next */
1123 1390
1124 /* inject a fake subroutine call to cctx_init */ 1391 /* inject a fake subroutine call to cctx_init */
1125 cctx_prepare (aTHX_ (coro_cctx *)arg); 1392 cctx_prepare (aTHX);
1126 1393
1127 /* cctx_run is the alternative tail of transfer() */ 1394 /* cctx_run is the alternative tail of transfer() */
1128 transfer_tail (aTHX); 1395 transfer_tail (aTHX);
1129 1396
1130 /* somebody or something will hit me for both perl_run and PL_restartop */ 1397 /* somebody or something will hit me for both perl_run and PL_restartop */
1131 PL_restartop = PL_op; 1398 PL_restartop = PL_op;
1132 perl_run (PL_curinterp); 1399 perl_run (PL_curinterp);
1400 /*
1401 * Unfortunately, there is no way to get at the return values of the
1402 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1403 * runtime errors here, as this is just a random interpreter, not a thread.
1404 */
1133 1405
1134 /* 1406 /*
1135 * If perl-run returns we assume exit() was being called or the coro 1407 * If perl-run returns we assume exit() was being called or the coro
1136 * fell off the end, which seems to be the only valid (non-bug) 1408 * fell off the end, which seems to be the only valid (non-bug)
1137 * reason for perl_run to return. We try to exit by jumping to the 1409 * reason for perl_run to return. We try to exit by jumping to the
1138 * bootstrap-time "top" top_env, as we cannot restore the "main" 1410 * bootstrap-time "top" top_env, as we cannot restore the "main"
1139 * coroutine as Coro has no such concept 1411 * coroutine as Coro has no such concept.
1412 * This actually isn't valid with the pthread backend, but OSes requiring
1413 * that backend are too broken to do it in a standards-compliant way.
1140 */ 1414 */
1141 PL_top_env = main_top_env; 1415 PL_top_env = main_top_env;
1142 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ 1416 JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */
1143 } 1417 }
1144} 1418}
… …
1221cctx_destroy (coro_cctx *cctx) 1495cctx_destroy (coro_cctx *cctx)
1222{ 1496{
1223 if (!cctx) 1497 if (!cctx)
1224 return; 1498 return;
1225 1499
1500 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary?
1501
1226 --cctx_count; 1502 --cctx_count;
1227 coro_destroy (&cctx->cctx); 1503 coro_destroy (&cctx->cctx);
1228 1504
1229 /* coro_transfer creates new, empty cctx's */ 1505 /* coro_transfer creates new, empty cctx's */
1230 if (cctx->sptr) 1506 if (cctx->sptr)
… …
1293 /* TODO: throwing up here is considered harmful */ 1569 /* TODO: throwing up here is considered harmful */
1294 1570
1295 if (expect_true (prev != next)) 1571 if (expect_true (prev != next))
1296 { 1572 {
1297 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1573 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,"); 1574 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1299 1575
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)) 1576 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,"); 1577 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1305 1578
1306#if !PERL_VERSION_ATLEAST (5,10,0) 1579#if !PERL_VERSION_ATLEAST (5,10,0)
1307 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1580 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,"); 1581 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1309#endif 1582#endif
… …
1315transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1588transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1316{ 1589{
1317 dSTACKLEVEL; 1590 dSTACKLEVEL;
1318 1591
1319 /* sometimes transfer is only called to set idle_sp */ 1592 /* sometimes transfer is only called to set idle_sp */
1320 if (expect_false (!next)) 1593 if (expect_false (!prev))
1321 { 1594 {
1322 ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; 1595 cctx_current->idle_sp = STACKLEVEL;
1323 assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ 1596 assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */
1324 } 1597 }
1325 else if (expect_true (prev != next)) 1598 else if (expect_true (prev != next))
1326 { 1599 {
1327 coro_cctx *prev__cctx; 1600 coro_cctx *cctx_prev;
1328 1601
1329 if (expect_false (prev->flags & CF_NEW)) 1602 if (expect_false (prev->flags & CF_NEW))
1330 { 1603 {
1331 /* create a new empty/source context */ 1604 /* create a new empty/source context */
1332 prev->cctx = cctx_new_empty ();
1333 prev->flags &= ~CF_NEW; 1605 prev->flags &= ~CF_NEW;
1334 prev->flags |= CF_RUNNING; 1606 prev->flags |= CF_RUNNING;
1335 } 1607 }
1336 1608
1337 prev->flags &= ~CF_RUNNING; 1609 prev->flags &= ~CF_RUNNING;
… …
1343 if (expect_false (next->flags & CF_NEW)) 1615 if (expect_false (next->flags & CF_NEW))
1344 { 1616 {
1345 /* need to start coroutine */ 1617 /* need to start coroutine */
1346 next->flags &= ~CF_NEW; 1618 next->flags &= ~CF_NEW;
1347 /* setup coroutine call */ 1619 /* setup coroutine call */
1348 coro_setup (aTHX_ next); 1620 init_perl (aTHX_ next);
1349 } 1621 }
1350 else 1622 else
1351 load_perl (aTHX_ next); 1623 load_perl (aTHX_ next);
1352 1624
1353 prev__cctx = prev->cctx;
1354
1355 /* possibly untie and reuse the cctx */ 1625 /* possibly untie and reuse the cctx */
1356 if (expect_true ( 1626 if (expect_true (
1357 prev__cctx->idle_sp == (void *)stacklevel 1627 cctx_current->idle_sp == STACKLEVEL
1358 && !(prev__cctx->flags & CC_TRACE) 1628 && !(cctx_current->flags & CC_TRACE)
1359 && !force_cctx 1629 && !force_cctx
1360 )) 1630 ))
1361 { 1631 {
1362 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ 1632 /* I assume that stacklevel is a stronger indicator than PL_top_env changes */
1363 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); 1633 assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te));
1364 1634
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 */ 1635 /* 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 */ 1636 /* without this the next cctx_get might destroy the running cctx while still in use */
1369 if (expect_false (CCTX_EXPIRED (prev__cctx))) 1637 if (expect_false (CCTX_EXPIRED (cctx_current)))
1370 if (!next->cctx) 1638 if (expect_true (!next->cctx))
1371 next->cctx = cctx_get (aTHX); 1639 next->cctx = cctx_get (aTHX);
1372 1640
1373 cctx_put (prev__cctx); 1641 cctx_put (cctx_current);
1374 } 1642 }
1643 else
1644 prev->cctx = cctx_current;
1375 1645
1376 ++next->usecount; 1646 ++next->usecount;
1377 1647
1378 if (expect_true (!next->cctx)) 1648 cctx_prev = cctx_current;
1379 next->cctx = cctx_get (aTHX); 1649 cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX);
1380 1650
1381 if (expect_false (prev__cctx != next->cctx)) 1651 next->cctx = 0;
1652
1653 if (expect_false (cctx_prev != cctx_current))
1382 { 1654 {
1383 prev__cctx->top_env = PL_top_env; 1655 cctx_prev->top_env = PL_top_env;
1384 PL_top_env = next->cctx->top_env; 1656 PL_top_env = cctx_current->top_env;
1385 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1657 coro_transfer (&cctx_prev->cctx, &cctx_current->cctx);
1386 } 1658 }
1387 1659
1388 transfer_tail (aTHX); 1660 transfer_tail (aTHX);
1389 } 1661 }
1390} 1662}
… …
1398coro_state_destroy (pTHX_ struct coro *coro) 1670coro_state_destroy (pTHX_ struct coro *coro)
1399{ 1671{
1400 if (coro->flags & CF_DESTROYED) 1672 if (coro->flags & CF_DESTROYED)
1401 return 0; 1673 return 0;
1402 1674
1403 if (coro->on_destroy) 1675 if (coro->on_destroy && !PL_dirty)
1404 coro->on_destroy (aTHX_ coro); 1676 coro->on_destroy (aTHX_ coro);
1405 1677
1406 coro->flags |= CF_DESTROYED; 1678 coro->flags |= CF_DESTROYED;
1407 1679
1408 if (coro->flags & CF_READY) 1680 if (coro->flags & CF_READY)
… …
1412 --coro_nready; 1684 --coro_nready;
1413 } 1685 }
1414 else 1686 else
1415 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1687 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1416 1688
1417 if (coro->mainstack && coro->mainstack != main_mainstack) 1689 if (coro->mainstack
1418 { 1690 && coro->mainstack != main_mainstack
1419 struct coro temp; 1691 && coro->slot
1420 1692 && !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); 1693 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 1694
1436 if (coro->next) coro->next->prev = coro->prev; 1695 if (coro->next) coro->next->prev = coro->prev;
1437 if (coro->prev) coro->prev->next = coro->next; 1696 if (coro->prev) coro->prev->next = coro->next;
1438 if (coro == coro_first) coro_first = coro->next; 1697 if (coro == coro_first) coro_first = coro->next;
1698
1699 cctx_destroy (coro->cctx);
1700 SvREFCNT_dec (coro->startcv);
1701 SvREFCNT_dec (coro->args);
1702 SvREFCNT_dec (coro->swap_sv);
1703 SvREFCNT_dec (CORO_THROW);
1439 1704
1440 return 1; 1705 return 1;
1441} 1706}
1442 1707
1443static int 1708static int
… …
1498/** Coro ********************************************************************/ 1763/** Coro ********************************************************************/
1499 1764
1500INLINE void 1765INLINE void
1501coro_enq (pTHX_ struct coro *coro) 1766coro_enq (pTHX_ struct coro *coro)
1502{ 1767{
1503 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1768 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1504}
1505 1769
1506INLINE SV * 1770 SvREFCNT_inc_NN (coro->hv);
1771
1772 coro->next_ready = 0;
1773 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1774 ready [1] = coro;
1775}
1776
1777INLINE struct coro *
1507coro_deq (pTHX) 1778coro_deq (pTHX)
1508{ 1779{
1509 int prio; 1780 int prio;
1510 1781
1511 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1782 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1512 if (AvFILLp (coro_ready [prio]) >= 0) 1783 {
1513 return av_shift (coro_ready [prio]); 1784 struct coro **ready = coro_ready [prio];
1785
1786 if (ready [0])
1787 {
1788 struct coro *coro = ready [0];
1789 ready [0] = coro->next_ready;
1790 return coro;
1791 }
1792 }
1514 1793
1515 return 0; 1794 return 0;
1795}
1796
1797static void
1798invoke_sv_ready_hook_helper (void)
1799{
1800 dTHX;
1801 dSP;
1802
1803 ENTER;
1804 SAVETMPS;
1805
1806 PUSHMARK (SP);
1807 PUTBACK;
1808 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1809
1810 FREETMPS;
1811 LEAVE;
1516} 1812}
1517 1813
1518static int 1814static int
1519api_ready (pTHX_ SV *coro_sv) 1815api_ready (pTHX_ SV *coro_sv)
1520{ 1816{
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); 1817 struct coro *coro = SvSTATE (coro_sv);
1529 1818
1530 if (coro->flags & CF_READY) 1819 if (coro->flags & CF_READY)
1531 return 0; 1820 return 0;
1532 1821
1533 coro->flags |= CF_READY; 1822 coro->flags |= CF_READY;
1534 1823
1535 sv_hook = coro_nready ? 0 : coro_readyhook;
1536 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1537
1538 coro_enq (aTHX_ coro); 1824 coro_enq (aTHX_ coro);
1539 ++coro_nready;
1540 1825
1541 if (sv_hook) 1826 if (!coro_nready++)
1542 { 1827 if (coroapi.readyhook)
1543 dSP; 1828 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 1829
1559 return 1; 1830 return 1;
1560} 1831}
1561 1832
1562static int 1833static int
1563api_is_ready (pTHX_ SV *coro_sv) 1834api_is_ready (pTHX_ SV *coro_sv)
1564{ 1835{
1565 return !!(SvSTATE (coro_sv)->flags & CF_READY); 1836 return !!(SvSTATE (coro_sv)->flags & CF_READY);
1566} 1837}
1567 1838
1839/* expects to own a reference to next->hv */
1568INLINE void 1840INLINE void
1569prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1841prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next)
1570{ 1842{
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); 1843 SV *prev_sv = SvRV (coro_current);
1844
1610 ta->prev = SvSTATE_hv (prev_sv); 1845 ta->prev = SvSTATE_hv (prev_sv);
1846 ta->next = next;
1847
1611 TRANSFER_CHECK (*ta); 1848 TRANSFER_CHECK (*ta);
1612 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1849
1613 ta->next->flags &= ~CF_READY;
1614 SvRV_set (coro_current, next_sv); 1850 SvRV_set (coro_current, (SV *)next->hv);
1615 1851
1616 free_coro_mortal (aTHX); 1852 free_coro_mortal (aTHX);
1617 coro_mortal = prev_sv; 1853 coro_mortal = prev_sv;
1618} 1854}
1619 1855
1856static void
1857prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1858{
1859 for (;;)
1860 {
1861 struct coro *next = coro_deq (aTHX);
1862
1863 if (expect_true (next))
1864 {
1865 /* cannot transfer to destroyed coros, skip and look for next */
1866 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1867 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1868 else
1869 {
1870 next->flags &= ~CF_READY;
1871 --coro_nready;
1872
1873 prepare_schedule_to (aTHX_ ta, next);
1874 break;
1875 }
1876 }
1877 else
1878 {
1879 /* nothing to schedule: call the idle handler */
1880 if (SvROK (sv_idle)
1881 && SvOBJECT (SvRV (sv_idle)))
1882 {
1883 if (SvRV (sv_idle) == SvRV (coro_current))
1884 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1885
1886 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1887 api_ready (aTHX_ SvRV (sv_idle));
1888 --coro_nready;
1889 }
1890 else
1891 {
1892 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1893 dSP;
1894
1895 ENTER;
1896 SAVETMPS;
1897
1898 PUSHMARK (SP);
1899 PUTBACK;
1900 call_sv (sv_idle, G_VOID | G_DISCARD);
1901
1902 FREETMPS;
1903 LEAVE;
1904 }
1905 }
1906 }
1907}
1908
1620INLINE void 1909INLINE void
1621prepare_cede (pTHX_ struct coro_transfer_args *ta) 1910prepare_cede (pTHX_ struct coro_transfer_args *ta)
1622{ 1911{
1623 api_ready (aTHX_ coro_current); 1912 api_ready (aTHX_ coro_current);
1624 prepare_schedule (aTHX_ ta); 1913 prepare_schedule (aTHX_ ta);
… …
1643{ 1932{
1644 struct coro_transfer_args ta; 1933 struct coro_transfer_args ta;
1645 1934
1646 prepare_schedule (aTHX_ &ta); 1935 prepare_schedule (aTHX_ &ta);
1647 TRANSFER (ta, 1); 1936 TRANSFER (ta, 1);
1937}
1938
1939static void
1940api_schedule_to (pTHX_ SV *coro_sv)
1941{
1942 struct coro_transfer_args ta;
1943 struct coro *next = SvSTATE (coro_sv);
1944
1945 SvREFCNT_inc_NN (coro_sv);
1946 prepare_schedule_to (aTHX_ &ta, next);
1648} 1947}
1649 1948
1650static int 1949static int
1651api_cede (pTHX) 1950api_cede (pTHX)
1652{ 1951{
… …
1681static void 1980static void
1682api_trace (pTHX_ SV *coro_sv, int flags) 1981api_trace (pTHX_ SV *coro_sv, int flags)
1683{ 1982{
1684 struct coro *coro = SvSTATE (coro_sv); 1983 struct coro *coro = SvSTATE (coro_sv);
1685 1984
1985 if (coro->flags & CF_RUNNING)
1986 croak ("cannot enable tracing on a running coroutine, caught");
1987
1686 if (flags & CC_TRACE) 1988 if (flags & CC_TRACE)
1687 { 1989 {
1688 if (!coro->cctx) 1990 if (!coro->cctx)
1689 coro->cctx = cctx_new_run (); 1991 coro->cctx = cctx_new_run ();
1690 else if (!(coro->cctx->flags & CC_TRACE)) 1992 else if (!(coro->cctx->flags & CC_TRACE))
1691 croak ("cannot enable tracing on coroutine with custom stack,"); 1993 croak ("cannot enable tracing on coroutine with custom stack, caught");
1692 1994
1693 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); 1995 coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL));
1694 } 1996 }
1695 else if (coro->cctx && coro->cctx->flags & CC_TRACE) 1997 else if (coro->cctx && coro->cctx->flags & CC_TRACE)
1696 { 1998 {
… …
1699 if (coro->flags & CF_RUNNING) 2001 if (coro->flags & CF_RUNNING)
1700 PL_runops = RUNOPS_DEFAULT; 2002 PL_runops = RUNOPS_DEFAULT;
1701 else 2003 else
1702 coro->slot->runops = RUNOPS_DEFAULT; 2004 coro->slot->runops = RUNOPS_DEFAULT;
1703 } 2005 }
2006}
2007
2008static void
2009coro_call_on_destroy (pTHX_ struct coro *coro)
2010{
2011 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
2012 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2013
2014 if (on_destroyp)
2015 {
2016 AV *on_destroy = (AV *)SvRV (*on_destroyp);
2017
2018 while (AvFILLp (on_destroy) >= 0)
2019 {
2020 dSP; /* don't disturb outer sp */
2021 SV *cb = av_pop (on_destroy);
2022
2023 PUSHMARK (SP);
2024
2025 if (statusp)
2026 {
2027 int i;
2028 AV *status = (AV *)SvRV (*statusp);
2029 EXTEND (SP, AvFILLp (status) + 1);
2030
2031 for (i = 0; i <= AvFILLp (status); ++i)
2032 PUSHs (AvARRAY (status)[i]);
2033 }
2034
2035 PUTBACK;
2036 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD);
2037 }
2038 }
2039}
2040
2041static void
2042slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2043{
2044 int i;
2045 HV *hv = (HV *)SvRV (coro_current);
2046 AV *av = newAV ();
2047
2048 /* items are actually not so common, so optimise for this case */
2049 if (items)
2050 {
2051 av_extend (av, items - 1);
2052
2053 for (i = 0; i < items; ++i)
2054 av_push (av, SvREFCNT_inc_NN (arg [i]));
2055 }
2056
2057 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2058
2059 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
2060 api_ready (aTHX_ sv_manager);
2061
2062 frame->prepare = prepare_schedule;
2063 frame->check = slf_check_repeat;
2064
2065 /* as a minor optimisation, we could unwind all stacks here */
2066 /* but that puts extra pressure on pp_slf, and is not worth much */
2067 /*coro_unwind_stacks (aTHX);*/
2068}
2069
2070/*****************************************************************************/
2071/* async pool handler */
2072
2073static int
2074slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
2075{
2076 HV *hv = (HV *)SvRV (coro_current);
2077 struct coro *coro = (struct coro *)frame->data;
2078
2079 if (!coro->invoke_cb)
2080 return 1; /* loop till we have invoke */
2081 else
2082 {
2083 hv_store (hv, "desc", sizeof ("desc") - 1,
2084 newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0);
2085
2086 coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv);
2087
2088 {
2089 dSP;
2090 XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0;
2091 PUTBACK;
2092 }
2093
2094 SvREFCNT_dec (GvAV (PL_defgv));
2095 GvAV (PL_defgv) = coro->invoke_av;
2096 coro->invoke_av = 0;
2097
2098 return 0;
2099 }
2100}
2101
2102static void
2103slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2104{
2105 HV *hv = (HV *)SvRV (coro_current);
2106 struct coro *coro = SvSTATE_hv ((SV *)hv);
2107
2108 if (expect_true (coro->saved_deffh))
2109 {
2110 /* subsequent iteration */
2111 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2112 coro->saved_deffh = 0;
2113
2114 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2115 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2116 {
2117 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate);
2118 coro->invoke_av = newAV ();
2119
2120 frame->prepare = prepare_nop;
2121 }
2122 else
2123 {
2124 av_clear (GvAV (PL_defgv));
2125 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
2126
2127 coro->prio = 0;
2128
2129 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
2130 api_trace (aTHX_ coro_current, 0);
2131
2132 frame->prepare = prepare_schedule;
2133 av_push (av_async_pool, SvREFCNT_inc (hv));
2134 }
2135 }
2136 else
2137 {
2138 /* first iteration, simply fall through */
2139 frame->prepare = prepare_nop;
2140 }
2141
2142 frame->check = slf_check_pool_handler;
2143 frame->data = (void *)coro;
2144}
2145
2146/*****************************************************************************/
2147/* rouse callback */
2148
2149#define CORO_MAGIC_type_rouse PERL_MAGIC_ext
2150
2151static void
2152coro_rouse_callback (pTHX_ CV *cv)
2153{
2154 dXSARGS;
2155 SV *data = (SV *)S_GENSUB_ARG;
2156
2157 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2158 {
2159 /* first call, set args */
2160 SV *coro = SvRV (data);
2161 AV *av = newAV ();
2162
2163 SvRV_set (data, (SV *)av);
2164
2165 /* better take a full copy of the arguments */
2166 while (items--)
2167 av_store (av, items, newSVsv (ST (items)));
2168
2169 api_ready (aTHX_ coro);
2170 SvREFCNT_dec (coro);
2171 }
2172
2173 XSRETURN_EMPTY;
2174}
2175
2176static int
2177slf_check_rouse_wait (pTHX_ struct CoroSLF *frame)
2178{
2179 SV *data = (SV *)frame->data;
2180
2181 if (CORO_THROW)
2182 return 0;
2183
2184 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2185 return 1;
2186
2187 /* now push all results on the stack */
2188 {
2189 dSP;
2190 AV *av = (AV *)SvRV (data);
2191 int i;
2192
2193 EXTEND (SP, AvFILLp (av) + 1);
2194 for (i = 0; i <= AvFILLp (av); ++i)
2195 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2196
2197 /* we have stolen the elements, so set length to zero and free */
2198 AvFILLp (av) = -1;
2199 av_undef (av);
2200
2201 PUTBACK;
2202 }
2203
2204 return 0;
2205}
2206
2207static void
2208slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2209{
2210 SV *cb;
2211
2212 if (items)
2213 cb = arg [0];
2214 else
2215 {
2216 struct coro *coro = SvSTATE_current;
2217
2218 if (!coro->rouse_cb)
2219 croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,");
2220
2221 cb = sv_2mortal (coro->rouse_cb);
2222 coro->rouse_cb = 0;
2223 }
2224
2225 if (!SvROK (cb)
2226 || SvTYPE (SvRV (cb)) != SVt_PVCV
2227 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2228 croak ("Coro::rouse_wait called with illegal callback argument,");
2229
2230 {
2231 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2232 SV *data = (SV *)S_GENSUB_ARG;
2233
2234 frame->data = (void *)data;
2235 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2236 frame->check = slf_check_rouse_wait;
2237 }
2238}
2239
2240static SV *
2241coro_new_rouse_cb (pTHX)
2242{
2243 HV *hv = (HV *)SvRV (coro_current);
2244 struct coro *coro = SvSTATE_hv (hv);
2245 SV *data = newRV_inc ((SV *)hv);
2246 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2247
2248 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2249 SvREFCNT_dec (data); /* magicext increases the refcount */
2250
2251 SvREFCNT_dec (coro->rouse_cb);
2252 coro->rouse_cb = SvREFCNT_inc_NN (cb);
2253
2254 return cb;
1704} 2255}
1705 2256
1706/*****************************************************************************/ 2257/*****************************************************************************/
1707/* schedule-like-function opcode (SLF) */ 2258/* schedule-like-function opcode (SLF) */
1708 2259
… …
1755static void 2306static void
1756slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2307slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1757{ 2308{
1758 frame->prepare = prepare_schedule; 2309 frame->prepare = prepare_schedule;
1759 frame->check = slf_check_nop; 2310 frame->check = slf_check_nop;
2311}
2312
2313static void
2314slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta)
2315{
2316 struct coro *next = (struct coro *)slf_frame.data;
2317
2318 SvREFCNT_inc_NN (next->hv);
2319 prepare_schedule_to (aTHX_ ta, next);
2320}
2321
2322static void
2323slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2324{
2325 if (!items)
2326 croak ("Coro::schedule_to expects a coroutine argument, caught");
2327
2328 frame->data = (void *)SvSTATE (arg [0]);
2329 frame->prepare = slf_prepare_schedule_to;
2330 frame->check = slf_check_nop;
2331}
2332
2333static void
2334slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2335{
2336 api_ready (aTHX_ SvRV (coro_current));
2337
2338 slf_init_schedule_to (aTHX_ frame, cv, arg, items);
1760} 2339}
1761 2340
1762static void 2341static void
1763slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2342slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1764{ 2343{
… …
1835 } 2414 }
1836 while (slf_frame.check (aTHX_ &slf_frame)); 2415 while (slf_frame.check (aTHX_ &slf_frame));
1837 2416
1838 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ 2417 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1839 2418
2419 /* exception handling */
2420 if (expect_false (CORO_THROW))
2421 {
2422 SV *exception = sv_2mortal (CORO_THROW);
2423
2424 CORO_THROW = 0;
2425 sv_setsv (ERRSV, exception);
2426 croak (0);
2427 }
2428
1840 /* return value handling - mostly like entersub */ 2429 /* return value handling - mostly like entersub */
1841 /* make sure we put something on the stack in scalar context */ 2430 /* make sure we put something on the stack in scalar context */
1842 if (GIMME_V == G_SCALAR) 2431 if (GIMME_V == G_SCALAR)
1843 { 2432 {
1844 dSP; 2433 dSP;
… …
1850 bot [1] = *sp; 2439 bot [1] = *sp;
1851 2440
1852 SP = bot + 1; 2441 SP = bot + 1;
1853 2442
1854 PUTBACK; 2443 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 } 2444 }
1866 2445
1867 return NORMAL; 2446 return NORMAL;
1868} 2447}
1869 2448
… …
1897 if (PL_op->op_flags & OPf_STACKED) 2476 if (PL_op->op_flags & OPf_STACKED)
1898 { 2477 {
1899 if (items > slf_arga) 2478 if (items > slf_arga)
1900 { 2479 {
1901 slf_arga = items; 2480 slf_arga = items;
1902 free (slf_argv); 2481 Safefree (slf_argv);
1903 slf_argv = malloc (slf_arga * sizeof (SV *)); 2482 New (0, slf_argv, slf_arga, SV *);
1904 } 2483 }
1905 2484
1906 slf_argc = items; 2485 slf_argc = items;
1907 2486
1908 for (i = 0; i < items; ++i) 2487 for (i = 0; i < items; ++i)
… …
1910 } 2489 }
1911 else 2490 else
1912 slf_argc = 0; 2491 slf_argc = 0;
1913 2492
1914 PL_op->op_ppaddr = pp_slf; 2493 PL_op->op_ppaddr = pp_slf;
1915 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ 2494 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
1916 2495
1917 PL_op = (OP *)&slf_restore; 2496 PL_op = (OP *)&slf_restore;
2497}
2498
2499/*****************************************************************************/
2500/* dynamic wind */
2501
2502static void
2503on_enterleave_call (pTHX_ SV *cb)
2504{
2505 dSP;
2506
2507 PUSHSTACK;
2508
2509 PUSHMARK (SP);
2510 PUTBACK;
2511 call_sv (cb, G_VOID | G_DISCARD);
2512 SPAGAIN;
2513
2514 POPSTACK;
2515}
2516
2517static SV *
2518coro_avp_pop_and_free (pTHX_ AV **avp)
2519{
2520 AV *av = *avp;
2521 SV *res = av_pop (av);
2522
2523 if (AvFILLp (av) < 0)
2524 {
2525 *avp = 0;
2526 SvREFCNT_dec (av);
2527 }
2528
2529 return res;
2530}
2531
2532static void
2533coro_pop_on_enter (pTHX_ void *coro)
2534{
2535 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2536 SvREFCNT_dec (cb);
2537}
2538
2539static void
2540coro_pop_on_leave (pTHX_ void *coro)
2541{
2542 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2543 on_enterleave_call (aTHX_ sv_2mortal (cb));
1918} 2544}
1919 2545
1920/*****************************************************************************/ 2546/*****************************************************************************/
1921/* PerlIO::cede */ 2547/* PerlIO::cede */
1922 2548
… …
1991 PerlIOBuf_get_cnt, 2617 PerlIOBuf_get_cnt,
1992 PerlIOBuf_set_ptrcnt, 2618 PerlIOBuf_set_ptrcnt,
1993}; 2619};
1994 2620
1995/*****************************************************************************/ 2621/*****************************************************************************/
2622/* Coro::Semaphore & Coro::Signal */
2623
2624static SV *
2625coro_waitarray_new (pTHX_ int count)
2626{
2627 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2628 AV *av = newAV ();
2629 SV **ary;
2630
2631 /* unfortunately, building manually saves memory */
2632 Newx (ary, 2, SV *);
2633 AvALLOC (av) = ary;
2634#if PERL_VERSION_ATLEAST (5,10,0)
2635 AvARRAY (av) = ary;
2636#else
2637 /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */
2638 /* -DDEBUGGING flags this as a bug, despite it perfectly working */
2639 SvPVX ((SV *)av) = (char *)ary;
2640#endif
2641 AvMAX (av) = 1;
2642 AvFILLp (av) = 0;
2643 ary [0] = newSViv (count);
2644
2645 return newRV_noinc ((SV *)av);
2646}
2647
1996/* Coro::Semaphore */ 2648/* semaphore */
1997 2649
1998static void 2650static void
1999coro_semaphore_adjust (pTHX_ AV *av, IV adjust) 2651coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2000{ 2652{
2001 SV *count_sv = AvARRAY (av)[0]; 2653 SV *count_sv = AvARRAY (av)[0];
… …
2013 AvARRAY (av)[0] = AvARRAY (av)[1]; 2665 AvARRAY (av)[0] = AvARRAY (av)[1];
2014 AvARRAY (av)[1] = count_sv; 2666 AvARRAY (av)[1] = count_sv;
2015 cb = av_shift (av); 2667 cb = av_shift (av);
2016 2668
2017 if (SvOBJECT (cb)) 2669 if (SvOBJECT (cb))
2670 {
2018 api_ready (aTHX_ cb); 2671 api_ready (aTHX_ cb);
2019 else 2672 --count;
2020 croak ("callbacks not yet supported"); 2673 }
2674 else if (SvTYPE (cb) == SVt_PVCV)
2675 {
2676 dSP;
2677 PUSHMARK (SP);
2678 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2679 PUTBACK;
2680 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2681 }
2021 2682
2022 SvREFCNT_dec (cb); 2683 SvREFCNT_dec (cb);
2023
2024 --count;
2025 } 2684 }
2026} 2685}
2027 2686
2028static void 2687static void
2029coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2688coro_semaphore_on_destroy (pTHX_ struct coro *coro)
… …
2031 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2690 /* call $sem->adjust (0) to possibly wake up some other waiters */
2032 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2691 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2033} 2692}
2034 2693
2035static int 2694static int
2036slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2695slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2037{ 2696{
2038 AV *av = (AV *)frame->data; 2697 AV *av = (AV *)frame->data;
2039 SV *count_sv = AvARRAY (av)[0]; 2698 SV *count_sv = AvARRAY (av)[0];
2040 2699
2700 /* if we are about to throw, don't actually acquire the lock, just throw */
2701 if (CORO_THROW)
2702 return 0;
2041 if (SvIVX (count_sv) > 0) 2703 else if (SvIVX (count_sv) > 0)
2042 { 2704 {
2043 SvSTATE_current->on_destroy = 0; 2705 SvSTATE_current->on_destroy = 0;
2706
2707 if (acquire)
2044 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2708 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2709 else
2710 coro_semaphore_adjust (aTHX_ av, 0);
2711
2045 return 0; 2712 return 0;
2046 } 2713 }
2047 else 2714 else
2048 { 2715 {
2049 int i; 2716 int i;
… …
2058 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2725 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2059 return 1; 2726 return 1;
2060 } 2727 }
2061} 2728}
2062 2729
2063static void 2730static int
2731slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2732{
2733 return slf_check_semaphore_down_or_wait (aTHX_ frame, 1);
2734}
2735
2736static int
2737slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame)
2738{
2739 return slf_check_semaphore_down_or_wait (aTHX_ frame, 0);
2740}
2741
2742static void
2064slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2743slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2065{ 2744{
2066 AV *av = (AV *)SvRV (arg [0]); 2745 AV *av = (AV *)SvRV (arg [0]);
2067 2746
2068 if (SvIVX (AvARRAY (av)[0]) > 0) 2747 if (SvIVX (AvARRAY (av)[0]) > 0)
2069 { 2748 {
2070 frame->data = (void *)av; 2749 frame->data = (void *)av;
2071 frame->prepare = prepare_nop; 2750 frame->prepare = prepare_nop;
2072 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2073 } 2751 }
2074 else 2752 else
2075 { 2753 {
2076 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2754 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2077 2755
2078 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2756 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2079 frame->prepare = prepare_schedule; 2757 frame->prepare = prepare_schedule;
2080 2758
2081 /* to avoid race conditions when a woken-up coro gets terminated */ 2759 /* to avoid race conditions when a woken-up coro gets terminated */
2082 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2760 /* 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; 2761 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2085 } 2762 }
2763}
2086 2764
2765static void
2766slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2767{
2768 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2087 frame->check = slf_check_semaphore_down; 2769 frame->check = slf_check_semaphore_down;
2088
2089} 2770}
2090 2771
2091/*****************************************************************************/ 2772static void
2092/* gensub: simple closure generation utility */ 2773slf_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{ 2774{
2102 CV *cv = (CV *)newSV (0); 2775 if (items >= 2)
2776 {
2777 /* callback form */
2778 AV *av = (AV *)SvRV (arg [0]);
2779 SV *cb_cv = s_get_cv_croak (arg [1]);
2103 2780
2104 sv_upgrade ((SV *)cv, SVt_PVCV); 2781 av_push (av, SvREFCNT_inc_NN (cb_cv));
2105 2782
2106 CvANON_on (cv); 2783 if (SvIVX (AvARRAY (av)[0]) > 0)
2107 CvISXSUB_on (cv); 2784 coro_semaphore_adjust (aTHX_ av, 0);
2108 CvXSUB (cv) = xsub;
2109 GENSUB_ARG = arg;
2110 2785
2111 return newRV_noinc ((SV *)cv); 2786 frame->prepare = prepare_nop;
2787 frame->check = slf_check_nop;
2788 }
2789 else
2790 {
2791 slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items);
2792 frame->check = slf_check_semaphore_wait;
2793 }
2794}
2795
2796/* signal */
2797
2798static void
2799coro_signal_wake (pTHX_ AV *av, int count)
2800{
2801 SvIVX (AvARRAY (av)[0]) = 0;
2802
2803 /* now signal count waiters */
2804 while (count > 0 && AvFILLp (av) > 0)
2805 {
2806 SV *cb;
2807
2808 /* swap first two elements so we can shift a waiter */
2809 cb = AvARRAY (av)[0];
2810 AvARRAY (av)[0] = AvARRAY (av)[1];
2811 AvARRAY (av)[1] = cb;
2812
2813 cb = av_shift (av);
2814
2815 if (SvTYPE (cb) == SVt_PVCV)
2816 {
2817 dSP;
2818 PUSHMARK (SP);
2819 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2820 PUTBACK;
2821 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2822 }
2823 else
2824 {
2825 api_ready (aTHX_ cb);
2826 sv_setiv (cb, 0); /* signal waiter */
2827 }
2828
2829 SvREFCNT_dec (cb);
2830
2831 --count;
2832 }
2833}
2834
2835static int
2836slf_check_signal_wait (pTHX_ struct CoroSLF *frame)
2837{
2838 /* if we are about to throw, also stop waiting */
2839 return SvROK ((SV *)frame->data) && !CORO_THROW;
2840}
2841
2842static void
2843slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2844{
2845 AV *av = (AV *)SvRV (arg [0]);
2846
2847 if (items >= 2)
2848 {
2849 SV *cb_cv = s_get_cv_croak (arg [1]);
2850 av_push (av, SvREFCNT_inc_NN (cb_cv));
2851
2852 if (SvIVX (AvARRAY (av)[0]))
2853 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2854
2855 frame->prepare = prepare_nop;
2856 frame->check = slf_check_nop;
2857 }
2858 else if (SvIVX (AvARRAY (av)[0]))
2859 {
2860 SvIVX (AvARRAY (av)[0]) = 0;
2861 frame->prepare = prepare_nop;
2862 frame->check = slf_check_nop;
2863 }
2864 else
2865 {
2866 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2867
2868 av_push (av, waiter);
2869
2870 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2871 frame->prepare = prepare_schedule;
2872 frame->check = slf_check_signal_wait;
2873 }
2112} 2874}
2113 2875
2114/*****************************************************************************/ 2876/*****************************************************************************/
2115/* Coro::AIO */ 2877/* Coro::AIO */
2116 2878
… …
2127 2889
2128static void 2890static void
2129coro_aio_callback (pTHX_ CV *cv) 2891coro_aio_callback (pTHX_ CV *cv)
2130{ 2892{
2131 dXSARGS; 2893 dXSARGS;
2132 AV *state = (AV *)GENSUB_ARG; 2894 AV *state = (AV *)S_GENSUB_ARG;
2133 SV *coro = av_pop (state); 2895 SV *coro = av_pop (state);
2134 SV *data_sv = newSV (sizeof (struct io_state)); 2896 SV *data_sv = newSV (sizeof (struct io_state));
2135 2897
2136 av_extend (state, items); 2898 av_extend (state, items - 1);
2137 2899
2138 sv_upgrade (data_sv, SVt_PV); 2900 sv_upgrade (data_sv, SVt_PV);
2139 SvCUR_set (data_sv, sizeof (struct io_state)); 2901 SvCUR_set (data_sv, sizeof (struct io_state));
2140 SvPOK_only (data_sv); 2902 SvPOK_only (data_sv);
2141 2903
… …
2166static int 2928static int
2167slf_check_aio_req (pTHX_ struct CoroSLF *frame) 2929slf_check_aio_req (pTHX_ struct CoroSLF *frame)
2168{ 2930{
2169 AV *state = (AV *)frame->data; 2931 AV *state = (AV *)frame->data;
2170 2932
2933 /* if we are about to throw, return early */
2934 /* this does not cancel the aio request, but at least */
2935 /* it quickly returns */
2936 if (CORO_THROW)
2937 return 0;
2938
2171 /* one element that is an RV? repeat! */ 2939 /* one element that is an RV? repeat! */
2172 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) 2940 if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0]))
2173 return 1; 2941 return 1;
2174 2942
2175 /* restore status */ 2943 /* restore status */
… …
2245 3013
2246 for (i = 0; i < items; ++i) 3014 for (i = 0; i < items; ++i)
2247 PUSHs (arg [i]); 3015 PUSHs (arg [i]);
2248 3016
2249 /* now push the callback closure */ 3017 /* now push the callback closure */
2250 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3018 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2251 3019
2252 /* now call the AIO function - we assume our request is uncancelable */ 3020 /* now call the AIO function - we assume our request is uncancelable */
2253 PUTBACK; 3021 PUTBACK;
2254 call_sv ((SV *)req, G_VOID | G_DISCARD); 3022 call_sv ((SV *)req, G_VOID | G_DISCARD);
2255 } 3023 }
2256 3024
2257 /* now that the requets is going, we loop toll we have a result */ 3025 /* now that the request is going, we loop till we have a result */
2258 frame->data = (void *)state; 3026 frame->data = (void *)state;
2259 frame->prepare = prepare_schedule; 3027 frame->prepare = prepare_schedule;
2260 frame->check = slf_check_aio_req; 3028 frame->check = slf_check_aio_req;
2261} 3029}
2262 3030
… …
2269 3037
2270 XSRETURN_EMPTY; 3038 XSRETURN_EMPTY;
2271} 3039}
2272 3040
2273/*****************************************************************************/ 3041/*****************************************************************************/
3042
3043#if CORO_CLONE
3044# include "clone.c"
3045#endif
3046
3047/*****************************************************************************/
3048
3049static SV *
3050coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3051{
3052 SV *coro_sv;
3053 struct coro *coro;
3054 MAGIC *mg;
3055 HV *hv;
3056 SV *cb;
3057 int i;
3058
3059 if (argc > 0)
3060 {
3061 cb = s_get_cv_croak (argv [0]);
3062
3063 if (!is_coro)
3064 {
3065 if (CvISXSUB (cb))
3066 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3067
3068 if (!CvROOT (cb))
3069 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3070 }
3071 }
3072
3073 Newz (0, coro, 1, struct coro);
3074 coro->args = newAV ();
3075 coro->flags = CF_NEW;
3076
3077 if (coro_first) coro_first->prev = coro;
3078 coro->next = coro_first;
3079 coro_first = coro;
3080
3081 coro->hv = hv = newHV ();
3082 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3083 mg->mg_flags |= MGf_DUP;
3084 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3085
3086 if (argc > 0)
3087 {
3088 av_extend (coro->args, argc + is_coro - 1);
3089
3090 if (is_coro)
3091 {
3092 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3093 cb = (SV *)cv_coro_run;
3094 }
3095
3096 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3097
3098 for (i = 1; i < argc; i++)
3099 av_push (coro->args, newSVsv (argv [i]));
3100 }
3101
3102 return coro_sv;
3103}
2274 3104
2275MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3105MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2276 3106
2277PROTOTYPES: DISABLE 3107PROTOTYPES: DISABLE
2278 3108
… …
2283 coro_thx = PERL_GET_CONTEXT; 3113 coro_thx = PERL_GET_CONTEXT;
2284# endif 3114# endif
2285#endif 3115#endif
2286 BOOT_PAGESIZE; 3116 BOOT_PAGESIZE;
2287 3117
3118 cctx_current = cctx_new_empty ();
3119
2288 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); 3120 irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV);
2289 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); 3121 stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO);
2290 3122
2291 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; 3123 orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get;
2292 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; 3124 orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set;
… …
2311 3143
2312 { 3144 {
2313 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); 3145 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2314 3146
2315 if (!PL_custom_op_names) PL_custom_op_names = newHV (); 3147 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2316 hv_store_ent (PL_custom_op_names, slf, 3148 hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0);
2317 newSVpv ("coro_slf", 0), 0);
2318 3149
2319 if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); 3150 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2320 hv_store_ent (PL_custom_op_descs, slf, 3151 hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0);
2321 newSVpv ("coro schedule like function", 0), 0);
2322 } 3152 }
2323 3153
2324 coroapi.ver = CORO_API_VERSION; 3154 coroapi.ver = CORO_API_VERSION;
2325 coroapi.rev = CORO_API_REVISION; 3155 coroapi.rev = CORO_API_REVISION;
2326 3156
… …
2331 coroapi.prepare_nop = prepare_nop; 3161 coroapi.prepare_nop = prepare_nop;
2332 coroapi.prepare_schedule = prepare_schedule; 3162 coroapi.prepare_schedule = prepare_schedule;
2333 coroapi.prepare_cede = prepare_cede; 3163 coroapi.prepare_cede = prepare_cede;
2334 coroapi.prepare_cede_notself = prepare_cede_notself; 3164 coroapi.prepare_cede_notself = prepare_cede_notself;
2335 3165
2336 { 3166 time_init ();
2337 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2338 3167
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)); 3168 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2346} 3169}
2347 3170
2348SV * 3171SV *
2349new (char *klass, ...) 3172new (SV *klass, ...)
3173 ALIAS:
3174 Coro::new = 1
2350 CODE: 3175 CODE:
2351{ 3176 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2352 struct coro *coro; 3177 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 3178 RETVAL
2376 3179
2377void 3180void
2378transfer (...) 3181transfer (...)
2379 PROTOTYPE: $$ 3182 PROTOTYPE: $$
… …
2390void 3193void
2391_exit (int code) 3194_exit (int code)
2392 PROTOTYPE: $ 3195 PROTOTYPE: $
2393 CODE: 3196 CODE:
2394 _exit (code); 3197 _exit (code);
3198
3199SV *
3200clone (Coro::State coro)
3201 CODE:
3202{
3203#if CORO_CLONE
3204 struct coro *ncoro = coro_clone (aTHX_ coro);
3205 MAGIC *mg;
3206 /* TODO: too much duplication */
3207 ncoro->hv = newHV ();
3208 mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0);
3209 mg->mg_flags |= MGf_DUP;
3210 RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv));
3211#else
3212 croak ("Coro::State->clone has not been configured into this installation of Coro, realised");
3213#endif
3214}
3215 OUTPUT:
3216 RETVAL
2395 3217
2396int 3218int
2397cctx_stacksize (int new_stacksize = 0) 3219cctx_stacksize (int new_stacksize = 0)
2398 PROTOTYPE: ;$ 3220 PROTOTYPE: ;$
2399 CODE: 3221 CODE:
… …
2449 eval = 1 3271 eval = 1
2450 CODE: 3272 CODE:
2451{ 3273{
2452 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3274 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
2453 { 3275 {
2454 struct coro temp; 3276 struct coro *current = SvSTATE_current;
2455 3277
2456 if (!(coro->flags & CF_RUNNING)) 3278 if (current != coro)
2457 { 3279 {
2458 PUTBACK; 3280 PUTBACK;
2459 save_perl (aTHX_ &temp); 3281 save_perl (aTHX_ current);
2460 load_perl (aTHX_ coro); 3282 load_perl (aTHX_ coro);
3283 SPAGAIN;
2461 } 3284 }
2462 3285
2463 {
2464 dSP;
2465 ENTER;
2466 SAVETMPS;
2467 PUTBACK;
2468 PUSHSTACK; 3286 PUSHSTACK;
3287
2469 PUSHMARK (SP); 3288 PUSHMARK (SP);
3289 PUTBACK;
2470 3290
2471 if (ix) 3291 if (ix)
2472 eval_sv (coderef, 0); 3292 eval_sv (coderef, 0);
2473 else 3293 else
2474 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3294 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
2475 3295
2476 POPSTACK; 3296 POPSTACK;
2477 SPAGAIN; 3297 SPAGAIN;
2478 FREETMPS;
2479 LEAVE;
2480 PUTBACK;
2481 }
2482 3298
2483 if (!(coro->flags & CF_RUNNING)) 3299 if (current != coro)
2484 { 3300 {
3301 PUTBACK;
2485 save_perl (aTHX_ coro); 3302 save_perl (aTHX_ coro);
2486 load_perl (aTHX_ &temp); 3303 load_perl (aTHX_ current);
2487 SPAGAIN; 3304 SPAGAIN;
2488 } 3305 }
2489 } 3306 }
2490} 3307}
2491 3308
… …
2495 ALIAS: 3312 ALIAS:
2496 is_ready = CF_READY 3313 is_ready = CF_READY
2497 is_running = CF_RUNNING 3314 is_running = CF_RUNNING
2498 is_new = CF_NEW 3315 is_new = CF_NEW
2499 is_destroyed = CF_DESTROYED 3316 is_destroyed = CF_DESTROYED
3317 is_suspended = CF_SUSPENDED
2500 CODE: 3318 CODE:
2501 RETVAL = boolSV (coro->flags & ix); 3319 RETVAL = boolSV (coro->flags & ix);
2502 OUTPUT: 3320 OUTPUT:
2503 RETVAL 3321 RETVAL
2504 3322
2505void 3323void
2506throw (Coro::State self, SV *throw = &PL_sv_undef) 3324throw (Coro::State self, SV *exception = &PL_sv_undef)
2507 PROTOTYPE: $;$ 3325 PROTOTYPE: $;$
2508 CODE: 3326 CODE:
2509{ 3327{
2510 struct coro *current = SvSTATE_current; 3328 struct coro *current = SvSTATE_current;
2511 SV **throwp = self == current ? &coro_throw : &self->throw; 3329 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
2512 SvREFCNT_dec (*throwp); 3330 SvREFCNT_dec (*exceptionp);
2513 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3331 SvGETMAGIC (exception);
3332 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
2514} 3333}
2515 3334
2516void 3335void
2517api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3336api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2518 PROTOTYPE: $;$ 3337 PROTOTYPE: $;$
… …
2520 3339
2521SV * 3340SV *
2522has_cctx (Coro::State coro) 3341has_cctx (Coro::State coro)
2523 PROTOTYPE: $ 3342 PROTOTYPE: $
2524 CODE: 3343 CODE:
2525 RETVAL = boolSV (!!coro->cctx); 3344 /* maybe manage the running flag differently */
3345 RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING));
2526 OUTPUT: 3346 OUTPUT:
2527 RETVAL 3347 RETVAL
2528 3348
2529int 3349int
2530is_traced (Coro::State coro) 3350is_traced (Coro::State coro)
… …
2550 3370
2551void 3371void
2552force_cctx () 3372force_cctx ()
2553 PROTOTYPE: 3373 PROTOTYPE:
2554 CODE: 3374 CODE:
2555 SvSTATE_current->cctx->idle_sp = 0; 3375 cctx_current->idle_sp = 0;
2556 3376
2557void 3377void
2558swap_defsv (Coro::State self) 3378swap_defsv (Coro::State self)
2559 PROTOTYPE: $ 3379 PROTOTYPE: $
2560 ALIAS: 3380 ALIAS:
… …
2568 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3388 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
2569 3389
2570 SV *tmp = *src; *src = *dst; *dst = tmp; 3390 SV *tmp = *src; *src = *dst; *dst = tmp;
2571 } 3391 }
2572 3392
3393void
3394cancel (Coro::State self)
3395 CODE:
3396 coro_state_destroy (aTHX_ self);
3397 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3398
3399
3400SV *
3401enable_times (int enabled = enable_times)
3402 CODE:
3403{
3404 RETVAL = boolSV (enable_times);
3405
3406 if (enabled != enable_times)
3407 {
3408 enable_times = enabled;
3409
3410 coro_times_update ();
3411 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3412 }
3413}
3414 OUTPUT:
3415 RETVAL
3416
3417void
3418times (Coro::State self)
3419 PPCODE:
3420{
3421 struct coro *current = SvSTATE (coro_current);
3422
3423 if (expect_false (current == self))
3424 {
3425 coro_times_update ();
3426 coro_times_add (SvSTATE (coro_current));
3427 }
3428
3429 EXTEND (SP, 2);
3430 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3431 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3432
3433 if (expect_false (current == self))
3434 coro_times_sub (SvSTATE (coro_current));
3435}
3436
3437void
3438swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3439 CODE:
3440{
3441 struct coro *current = SvSTATE_current;
3442
3443 if (current == coro)
3444 SWAP_SVS (current);
3445
3446 if (!coro->swap_sv)
3447 coro->swap_sv = newAV ();
3448
3449 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3450 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3451
3452 if (current == coro)
3453 SWAP_SVS (current);
3454}
3455
2573 3456
2574MODULE = Coro::State PACKAGE = Coro 3457MODULE = Coro::State PACKAGE = Coro
2575 3458
2576BOOT: 3459BOOT:
2577{ 3460{
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); 3461 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
2582 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3462 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
2583 3463 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3464 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
2584 coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); 3465 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
2585 SvREADONLY_on (coro_current); 3466 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3467 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3468 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3469 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
2586 3470
3471 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3472 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3473 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3474 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3475
2587 coro_stash = gv_stashpv ("Coro", TRUE); 3476 coro_stash = gv_stashpv ("Coro", TRUE);
2588 3477
2589 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3478 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
2590 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3479 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
2591 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3480 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
2592 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3481 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
2593 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3482 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
2594 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3483 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 3484
2599 { 3485 {
2600 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3486 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
2601 3487
2602 coroapi.schedule = api_schedule; 3488 coroapi.schedule = api_schedule;
3489 coroapi.schedule_to = api_schedule_to;
2603 coroapi.cede = api_cede; 3490 coroapi.cede = api_cede;
2604 coroapi.cede_notself = api_cede_notself; 3491 coroapi.cede_notself = api_cede_notself;
2605 coroapi.ready = api_ready; 3492 coroapi.ready = api_ready;
2606 coroapi.is_ready = api_is_ready; 3493 coroapi.is_ready = api_is_ready;
2607 coroapi.nready = coro_nready; 3494 coroapi.nready = coro_nready;
2608 coroapi.current = coro_current; 3495 coroapi.current = coro_current;
2609 3496
2610 GCoroAPI = &coroapi; 3497 /*GCoroAPI = &coroapi;*/
2611 sv_setiv (sv, (IV)&coroapi); 3498 sv_setiv (sv, (IV)&coroapi);
2612 SvREADONLY_on (sv); 3499 SvREADONLY_on (sv);
2613 } 3500 }
2614} 3501}
3502
3503SV *
3504async (...)
3505 PROTOTYPE: &@
3506 CODE:
3507 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3508 api_ready (aTHX_ RETVAL);
3509 OUTPUT:
3510 RETVAL
3511
3512void
3513terminate (...)
3514 CODE:
3515 CORO_EXECUTE_SLF_XS (slf_init_terminate);
2615 3516
2616void 3517void
2617schedule (...) 3518schedule (...)
2618 CODE: 3519 CODE:
2619 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3520 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3521
3522void
3523schedule_to (...)
3524 CODE:
3525 CORO_EXECUTE_SLF_XS (slf_init_schedule_to);
3526
3527void
3528cede_to (...)
3529 CODE:
3530 CORO_EXECUTE_SLF_XS (slf_init_cede_to);
2620 3531
2621void 3532void
2622cede (...) 3533cede (...)
2623 CODE: 3534 CODE:
2624 CORO_EXECUTE_SLF_XS (slf_init_cede); 3535 CORO_EXECUTE_SLF_XS (slf_init_cede);
… …
2638void 3549void
2639_set_readyhook (SV *hook) 3550_set_readyhook (SV *hook)
2640 PROTOTYPE: $ 3551 PROTOTYPE: $
2641 CODE: 3552 CODE:
2642 SvREFCNT_dec (coro_readyhook); 3553 SvREFCNT_dec (coro_readyhook);
3554 SvGETMAGIC (hook);
3555 if (SvOK (hook))
3556 {
2643 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3557 coro_readyhook = newSVsv (hook);
3558 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3559 }
3560 else
3561 {
3562 coro_readyhook = 0;
3563 CORO_READYHOOK = 0;
3564 }
2644 3565
2645int 3566int
2646prio (Coro::State coro, int newprio = 0) 3567prio (Coro::State coro, int newprio = 0)
2647 PROTOTYPE: $;$ 3568 PROTOTYPE: $;$
2648 ALIAS: 3569 ALIAS:
… …
2654 if (items > 1) 3575 if (items > 1)
2655 { 3576 {
2656 if (ix) 3577 if (ix)
2657 newprio = coro->prio - newprio; 3578 newprio = coro->prio - newprio;
2658 3579
2659 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3580 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
2660 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3581 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
2661 3582
2662 coro->prio = newprio; 3583 coro->prio = newprio;
2663 } 3584 }
2664} 3585}
2665 OUTPUT: 3586 OUTPUT:
… …
2679 CODE: 3600 CODE:
2680 RETVAL = coro_nready; 3601 RETVAL = coro_nready;
2681 OUTPUT: 3602 OUTPUT:
2682 RETVAL 3603 RETVAL
2683 3604
2684# for async_pool speedup
2685void 3605void
2686_pool_1 (SV *cb) 3606suspend (Coro::State self)
3607 PROTOTYPE: $
2687 CODE: 3608 CODE:
2688{ 3609 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 3610
2696 if (!invoke) 3611void
3612resume (Coro::State self)
3613 PROTOTYPE: $
3614 CODE:
3615 self->flags &= ~CF_SUSPENDED;
3616
3617void
3618_pool_handler (...)
3619 CODE:
3620 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3621
3622void
3623async_pool (SV *cv, ...)
3624 PROTOTYPE: &@
3625 PPCODE:
3626{
3627 HV *hv = (HV *)av_pop (av_async_pool);
3628 AV *av = newAV ();
3629 SV *cb = ST (0);
3630 int i;
3631
3632 av_extend (av, items - 2);
3633 for (i = 1; i < items; ++i)
3634 av_push (av, SvREFCNT_inc_NN (ST (i)));
3635
3636 if ((SV *)hv == &PL_sv_undef)
2697 { 3637 {
2698 SV *old = PL_diehook; 3638 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
2699 PL_diehook = 0; 3639 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
2700 SvREFCNT_dec (old); 3640 SvREFCNT_dec (sv);
2701 croak ("\3async_pool terminate\2\n");
2702 } 3641 }
2703 3642
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 { 3643 {
2717 av_fill (defav, len - 1); 3644 struct coro *coro = SvSTATE_hv (hv);
2718 for (i = 0; i < len; ++i) 3645
2719 av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); 3646 assert (!coro->invoke_cb);
3647 assert (!coro->invoke_av);
3648 coro->invoke_cb = SvREFCNT_inc (cb);
3649 coro->invoke_av = av;
2720 } 3650 }
3651
3652 api_ready (aTHX_ (SV *)hv);
3653
3654 if (GIMME_V != G_VOID)
3655 XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
3656 else
3657 SvREFCNT_dec (hv);
2721} 3658}
3659
3660SV *
3661rouse_cb ()
3662 PROTOTYPE:
3663 CODE:
3664 RETVAL = coro_new_rouse_cb (aTHX);
3665 OUTPUT:
3666 RETVAL
2722 3667
2723void 3668void
2724_pool_2 (SV *cb) 3669rouse_wait (...)
3670 PROTOTYPE: ;$
3671 PPCODE:
3672 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3673
3674void
3675on_enter (SV *block)
3676 ALIAS:
3677 on_leave = 1
3678 PROTOTYPE: &
2725 CODE: 3679 CODE:
2726{ 3680{
2727 HV *hv = (HV *)SvRV (coro_current);
2728 struct coro *coro = SvSTATE_hv ((SV *)hv); 3681 struct coro *coro = SvSTATE_current;
3682 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
2729 3683
2730 sv_setsv (cb, &PL_sv_undef); 3684 block = s_get_cv_croak (block);
2731 3685
2732 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 3686 if (!*avp)
2733 coro->saved_deffh = 0; 3687 *avp = newAV ();
2734 3688
2735 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 3689 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 3690
2744 av_clear (GvAV (PL_defgv)); 3691 if (!ix)
2745 hv_store (hv, "desc", sizeof ("desc") - 1, 3692 on_enterleave_call (aTHX_ block);
2746 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2747 3693
2748 coro->prio = 0; 3694 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
2749 3695 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
2750 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 3696 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} 3697}
2755 3698
2756 3699
2757MODULE = Coro::State PACKAGE = PerlIO::cede 3700MODULE = Coro::State PACKAGE = PerlIO::cede
2758 3701
… …
2761 3704
2762 3705
2763MODULE = Coro::State PACKAGE = Coro::Semaphore 3706MODULE = Coro::State PACKAGE = Coro::Semaphore
2764 3707
2765SV * 3708SV *
2766new (SV *klass, SV *count_ = 0) 3709new (SV *klass, SV *count = 0)
2767 CODE: 3710 CODE:
2768{ 3711{
2769 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 3712 int semcnt = 1;
2770 AV *av = newAV ();
2771 SV **ary;
2772 3713
2773 /* unfortunately, building manually saves memory */ 3714 if (count)
2774 Newx (ary, 2, SV *); 3715 {
2775 AvALLOC (av) = ary; 3716 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 3717
2781 RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); 3718 if (SvOK (count))
3719 semcnt = SvIV (count);
3720 }
3721
3722 RETVAL = sv_bless (
3723 coro_waitarray_new (aTHX_ semcnt),
3724 GvSTASH (CvGV (cv))
3725 );
2782} 3726}
3727 OUTPUT:
3728 RETVAL
3729
3730# helper for Coro::Channel and others
3731SV *
3732_alloc (int count)
3733 CODE:
3734 RETVAL = coro_waitarray_new (aTHX_ count);
2783 OUTPUT: 3735 OUTPUT:
2784 RETVAL 3736 RETVAL
2785 3737
2786SV * 3738SV *
2787count (SV *self) 3739count (SV *self)
… …
2796 adjust = 1 3748 adjust = 1
2797 CODE: 3749 CODE:
2798 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); 3750 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2799 3751
2800void 3752void
2801down (SV *self) 3753down (...)
2802 CODE: 3754 CODE:
2803 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); 3755 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
3756
3757void
3758wait (...)
3759 CODE:
3760 CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait);
2804 3761
2805void 3762void
2806try (SV *self) 3763try (SV *self)
2807 PPCODE: 3764 PPCODE:
2808{ 3765{
… …
2820 XSRETURN_NO; 3777 XSRETURN_NO;
2821} 3778}
2822 3779
2823void 3780void
2824waiters (SV *self) 3781waiters (SV *self)
2825 CODE: 3782 PPCODE:
2826{ 3783{
2827 AV *av = (AV *)SvRV (self); 3784 AV *av = (AV *)SvRV (self);
3785 int wcount = AvFILLp (av) + 1 - 1;
2828 3786
2829 if (GIMME_V == G_SCALAR) 3787 if (GIMME_V == G_SCALAR)
2830 XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); 3788 XPUSHs (sv_2mortal (newSViv (wcount)));
2831 else 3789 else
2832 { 3790 {
2833 int i; 3791 int i;
2834 EXTEND (SP, AvFILLp (av) + 1 - 1); 3792 EXTEND (SP, wcount);
2835 for (i = 1; i <= AvFILLp (av); ++i) 3793 for (i = 1; i <= wcount; ++i)
2836 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3794 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
2837 } 3795 }
2838} 3796}
3797
3798MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3799
3800void
3801_may_delete (SV *sem, int count, int extra_refs)
3802 PPCODE:
3803{
3804 AV *av = (AV *)SvRV (sem);
3805
3806 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3807 && AvFILLp (av) == 0 /* no waiters, just count */
3808 && SvIV (AvARRAY (av)[0]) == count)
3809 XSRETURN_YES;
3810
3811 XSRETURN_NO;
3812}
3813
3814MODULE = Coro::State PACKAGE = Coro::Signal
3815
3816SV *
3817new (SV *klass)
3818 CODE:
3819 RETVAL = sv_bless (
3820 coro_waitarray_new (aTHX_ 0),
3821 GvSTASH (CvGV (cv))
3822 );
3823 OUTPUT:
3824 RETVAL
3825
3826void
3827wait (...)
3828 CODE:
3829 CORO_EXECUTE_SLF_XS (slf_init_signal_wait);
3830
3831void
3832broadcast (SV *self)
3833 CODE:
3834{
3835 AV *av = (AV *)SvRV (self);
3836 coro_signal_wake (aTHX_ av, AvFILLp (av));
3837}
3838
3839void
3840send (SV *self)
3841 CODE:
3842{
3843 AV *av = (AV *)SvRV (self);
3844
3845 if (AvFILLp (av))
3846 coro_signal_wake (aTHX_ av, 1);
3847 else
3848 SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */
3849}
3850
3851IV
3852awaited (SV *self)
3853 CODE:
3854 RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1;
3855 OUTPUT:
3856 RETVAL
2839 3857
2840 3858
2841MODULE = Coro::State PACKAGE = Coro::AnyEvent 3859MODULE = Coro::State PACKAGE = Coro::AnyEvent
2842 3860
2843BOOT: 3861BOOT:
… …
2871 3889
2872void 3890void
2873_register (char *target, char *proto, SV *req) 3891_register (char *target, char *proto, SV *req)
2874 CODE: 3892 CODE:
2875{ 3893{
2876 HV *st; 3894 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 */ 3895 /* newXSproto doesn't return the CV on 5.8 */
2880 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3896 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
2881 sv_setpv ((SV *)slf_cv, proto); 3897 sv_setpv ((SV *)slf_cv, proto);
2882 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3898 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
2883} 3899}
2884 3900
3901MODULE = Coro::State PACKAGE = Coro::Select
3902
3903void
3904patch_pp_sselect ()
3905 CODE:
3906 if (!coro_old_pp_sselect)
3907 {
3908 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3909 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3910 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3911 }
3912
3913void
3914unpatch_pp_sselect ()
3915 CODE:
3916 if (coro_old_pp_sselect)
3917 {
3918 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3919 coro_old_pp_sselect = 0;
3920 }
3921

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines