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Comparing Coro/Coro/State.xs (file contents):
Revision 1.338 by root, Sun Dec 7 15:33:21 2008 UTC vs.
Revision 1.398 by root, Sat May 7 14:11:10 2011 UTC

1/* this works around a bug in mingw32 providing a non-working setjmp */
2#define USE_NO_MINGW_SETJMP_TWO_ARGS
3
4#define NDEBUG 1
5
1#include "libcoro/coro.c" 6#include "libcoro/coro.c"
2 7
3#define PERL_NO_GET_CONTEXT 8#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 9#define PERL_EXT
5 10
6#include "EXTERN.h" 11#include "EXTERN.h"
7#include "perl.h" 12#include "perl.h"
8#include "XSUB.h" 13#include "XSUB.h"
9#include "perliol.h" 14#include "perliol.h"
10 15
11#include "patchlevel.h" 16#include "schmorp.h"
12 17
13#include <stdio.h> 18#include <stdio.h>
14#include <errno.h> 19#include <errno.h>
15#include <assert.h> 20#include <assert.h>
16 21
17#ifdef WIN32 22#ifndef SVs_PADSTALE
23# define SVs_PADSTALE 0
24#endif
25
26#if defined(_WIN32)
27# undef HAS_GETTIMEOFDAY
18# undef setjmp 28# undef setjmp
19# undef longjmp 29# undef longjmp
20# undef _exit 30# undef _exit
21# define setjmp _setjmp /* deep magic */ 31# define setjmp _setjmp /* deep magic */
22#else 32#else
… …
51#endif 61#endif
52 62
53/* the maximum number of idle cctx that will be pooled */ 63/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 64static int cctx_max_idle = 4;
55 65
56#define PERL_VERSION_ATLEAST(a,b,c) \
57 (PERL_REVISION > (a) \
58 || (PERL_REVISION == (a) \
59 && (PERL_VERSION > (b) \
60 || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c)))))
61
62#if !PERL_VERSION_ATLEAST (5,6,0)
63# ifndef PL_ppaddr
64# define PL_ppaddr ppaddr
65# endif
66# ifndef call_sv
67# define call_sv perl_call_sv
68# endif
69# ifndef get_sv
70# define get_sv perl_get_sv
71# endif
72# ifndef get_cv
73# define get_cv perl_get_cv
74# endif
75# ifndef IS_PADGV
76# define IS_PADGV(v) 0
77# endif
78# ifndef IS_PADCONST
79# define IS_PADCONST(v) 0
80# endif
81#endif
82
83/* 5.11 */
84#ifndef CxHASARGS
85# define CxHASARGS(cx) (cx)->blk_sub.hasargs
86#endif
87
88/* 5.10.0 */
89#ifndef SvREFCNT_inc_NN
90# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv)
91#endif
92
93/* 5.8.8 */
94#ifndef GV_NOTQUAL
95# define GV_NOTQUAL 0
96#endif
97#ifndef newSV
98# define newSV(l) NEWSV(0,l)
99#endif
100#ifndef CvISXSUB_on
101# define CvISXSUB_on(cv) (void)cv
102#endif
103#ifndef CvISXSUB
104# define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE)
105#endif
106#ifndef Newx
107# define Newx(ptr,nitems,type) New (0,ptr,nitems,type)
108#endif
109
110/* 5.8.7 */
111#ifndef SvRV_set
112# define SvRV_set(s,v) SvRV(s) = (v)
113#endif
114
115#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 66#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 67# undef CORO_STACKGUARD
117#endif 68#endif
118 69
119#ifndef CORO_STACKGUARD 70#ifndef CORO_STACKGUARD
… …
137 88
138#define IN_DESTRUCT PL_dirty 89#define IN_DESTRUCT PL_dirty
139 90
140#if __GNUC__ >= 3 91#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x) 92# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value)) 93# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline 94# define INLINE static inline
144#else 95#else
145# define attribute(x) 96# define attribute(x)
146# define expect(expr,value) (expr) 97# define expect(expr,value) (expr)
147# define INLINE static 98# define INLINE static
… …
159# if CORO_PTHREAD 110# if CORO_PTHREAD
160static void *coro_thx; 111static void *coro_thx;
161# endif 112# endif
162#endif 113#endif
163 114
115#ifdef __linux
116# include <time.h> /* for timespec */
117# include <syscall.h> /* for SYS_* */
118# ifdef SYS_clock_gettime
119# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
120# define CORO_CLOCK_MONOTONIC 1
121# define CORO_CLOCK_THREAD_CPUTIME_ID 3
122# endif
123#endif
124
164static double (*nvtime)(); /* so why doesn't it take void? */ 125static double (*nvtime)(); /* so why doesn't it take void? */
126static void (*u2time)(pTHX_ UV ret[2]);
165 127
166/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
131static void slf_destroy (pTHX_ struct coro *coro);
169 132
170static U32 cctx_gen; 133static U32 cctx_gen;
171static size_t cctx_stacksize = CORO_STACKSIZE; 134static size_t cctx_stacksize = CORO_STACKSIZE;
172static struct CoroAPI coroapi; 135static struct CoroAPI coroapi;
173static AV *main_mainstack; /* used to differentiate between $main and others */ 136static AV *main_mainstack; /* used to differentiate between $main and others */
… …
190static SV *sv_pool_size; 153static SV *sv_pool_size;
191static SV *sv_async_pool_idle; /* description string */ 154static SV *sv_async_pool_idle; /* description string */
192static AV *av_async_pool; /* idle pool */ 155static AV *av_async_pool; /* idle pool */
193static SV *sv_Coro; /* class string */ 156static SV *sv_Coro; /* class string */
194static CV *cv_pool_handler; 157static CV *cv_pool_handler;
195static CV *cv_coro_state_new;
196 158
197/* Coro::AnyEvent */ 159/* Coro::AnyEvent */
198static SV *sv_activity; 160static SV *sv_activity;
161
162/* enable processtime/realtime profiling */
163static char enable_times;
164typedef U32 coro_ts[2];
165static coro_ts time_real, time_cpu;
166static char times_valid;
199 167
200static struct coro_cctx *cctx_first; 168static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 169static int cctx_count, cctx_idle;
202 170
203enum { 171enum {
… …
229 int valgrind_id; 197 int valgrind_id;
230#endif 198#endif
231 unsigned char flags; 199 unsigned char flags;
232} coro_cctx; 200} coro_cctx;
233 201
234coro_cctx *cctx_current; /* the currently running cctx */ 202static coro_cctx *cctx_current; /* the currently running cctx */
235 203
236/*****************************************************************************/ 204/*****************************************************************************/
237 205
238enum { 206enum {
239 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
240 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
241 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
242 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
243}; 213};
244 214
245/* the structure where most of the perl state is stored, overlaid on the cxstack */ 215/* the structure where most of the perl state is stored, overlaid on the cxstack */
246typedef struct 216typedef struct
247{ 217{
… …
253#define VAR(name,type) type name; 223#define VAR(name,type) type name;
254# include "state.h" 224# include "state.h"
255#undef VAR 225#undef VAR
256} perl_slots; 226} perl_slots;
257 227
228// how many context stack entries do we need for perl_slots
258#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 229#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
259 230
260/* this is a structure representing a perl-level coroutine */ 231/* this is a structure representing a perl-level coroutine */
261struct coro { 232struct coro {
262 /* the C coroutine allocated to this perl coroutine, if any */ 233 /* the C coroutine allocated to this perl coroutine, if any */
263 coro_cctx *cctx; 234 coro_cctx *cctx;
235
236 /* ready queue */
237 struct coro *next_ready;
264 238
265 /* state data */ 239 /* state data */
266 struct CoroSLF slf_frame; /* saved slf frame */ 240 struct CoroSLF slf_frame; /* saved slf frame */
267 AV *mainstack; 241 AV *mainstack;
268 perl_slots *slot; /* basically the saved sp */ 242 perl_slots *slot; /* basically the saved sp */
… …
270 CV *startcv; /* the CV to execute */ 244 CV *startcv; /* the CV to execute */
271 AV *args; /* data associated with this coroutine (initial args) */ 245 AV *args; /* data associated with this coroutine (initial args) */
272 int refcnt; /* coroutines are refcounted, yes */ 246 int refcnt; /* coroutines are refcounted, yes */
273 int flags; /* CF_ flags */ 247 int flags; /* CF_ flags */
274 HV *hv; /* the perl hash associated with this coro, if any */ 248 HV *hv; /* the perl hash associated with this coro, if any */
275 void (*on_destroy)(pTHX_ struct coro *coro);
276 249
277 /* statistics */ 250 /* statistics */
278 int usecount; /* number of transfers to this coro */ 251 int usecount; /* number of transfers to this coro */
279 252
280 /* coro process data */ 253 /* coro process data */
… …
285 /* async_pool */ 258 /* async_pool */
286 SV *saved_deffh; 259 SV *saved_deffh;
287 SV *invoke_cb; 260 SV *invoke_cb;
288 AV *invoke_av; 261 AV *invoke_av;
289 262
263 /* on_enter/on_leave */
264 AV *on_enter;
265 AV *on_leave;
266
267 /* swap_sv */
268 AV *swap_sv;
269
270 /* times */
271 coro_ts t_cpu, t_real;
272
290 /* linked list */ 273 /* linked list */
291 struct coro *next, *prev; 274 struct coro *next, *prev;
292}; 275};
293 276
294typedef struct coro *Coro__State; 277typedef struct coro *Coro__State;
295typedef struct coro *Coro__State_or_hashref; 278typedef struct coro *Coro__State_or_hashref;
296 279
297/* the following variables are effectively part of the perl context */ 280/* the following variables are effectively part of the perl context */
298/* and get copied between struct coro and these variables */ 281/* and get copied between struct coro and these variables */
299/* the mainr easonw e don't support windows process emulation */ 282/* the main reason we don't support windows process emulation */
300static struct CoroSLF slf_frame; /* the current slf frame */ 283static struct CoroSLF slf_frame; /* the current slf frame */
301 284
302/** Coro ********************************************************************/ 285/** Coro ********************************************************************/
303 286
304#define PRIO_MAX 3 287#define CORO_PRIO_MAX 3
305#define PRIO_HIGH 1 288#define CORO_PRIO_HIGH 1
306#define PRIO_NORMAL 0 289#define CORO_PRIO_NORMAL 0
307#define PRIO_LOW -1 290#define CORO_PRIO_LOW -1
308#define PRIO_IDLE -3 291#define CORO_PRIO_IDLE -3
309#define PRIO_MIN -4 292#define CORO_PRIO_MIN -4
310 293
311/* for Coro.pm */ 294/* for Coro.pm */
312static SV *coro_current; 295static SV *coro_current;
313static SV *coro_readyhook; 296static SV *coro_readyhook;
314static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 297static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
315static CV *cv_coro_run, *cv_coro_terminate; 298static CV *cv_coro_run;
316static struct coro *coro_first; 299static struct coro *coro_first;
317#define coro_nready coroapi.nready 300#define coro_nready coroapi.nready
301
302/** Coro::Select ************************************************************/
303
304static OP *(*coro_old_pp_sselect) (pTHX);
305static SV *coro_select_select;
306
307/* horrible hack, but if it works... */
308static OP *
309coro_pp_sselect (pTHX)
310{
311 dSP;
312 PUSHMARK (SP - 4); /* fake argument list */
313 XPUSHs (coro_select_select);
314 PUTBACK;
315
316 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
317 PL_op->op_flags |= OPf_STACKED;
318 PL_op->op_private = 0;
319 return PL_ppaddr [OP_ENTERSUB](aTHX);
320}
321
322/** time stuff **************************************************************/
323
324#ifdef HAS_GETTIMEOFDAY
325
326static void
327coro_u2time (pTHX_ UV ret[2])
328{
329 struct timeval tv;
330 gettimeofday (&tv, 0);
331
332 ret [0] = tv.tv_sec;
333 ret [1] = tv.tv_usec;
334}
335
336static double
337coro_nvtime ()
338{
339 struct timeval tv;
340 gettimeofday (&tv, 0);
341
342 return tv.tv_sec + tv.tv_usec * 1e-6;
343}
344
345static void
346time_init (pTHX)
347{
348 nvtime = coro_nvtime;
349 u2time = coro_u2time;
350}
351
352#else
353
354static void
355time_init (pTHX)
356{
357 SV **svp;
358
359 require_pv ("Time/HiRes.pm");
360
361 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
362
363 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
364 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
365
366 nvtime = INT2PTR (double (*)(), SvIV (*svp));
367
368 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
369 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
370}
371
372#endif
318 373
319/** lowlevel stuff **********************************************************/ 374/** lowlevel stuff **********************************************************/
320 375
321static SV * 376static SV *
322coro_get_sv (pTHX_ const char *name, int create) 377coro_get_sv (pTHX_ const char *name, int create)
… …
346 get_hv (name, create); 401 get_hv (name, create);
347#endif 402#endif
348 return get_hv (name, create); 403 return get_hv (name, create);
349} 404}
350 405
351/* may croak */ 406INLINE void
352INLINE CV * 407coro_times_update ()
353coro_sv_2cv (pTHX_ SV *sv)
354{ 408{
355 HV *st; 409#ifdef coro_clock_gettime
356 GV *gvp; 410 struct timespec ts;
357 return sv_2cv (sv, &st, &gvp, 0); 411
412 ts.tv_sec = ts.tv_nsec = 0;
413 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
414 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
415
416 ts.tv_sec = ts.tv_nsec = 0;
417 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
418 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
419#else
420 dTHX;
421 UV tv[2];
422
423 u2time (aTHX_ tv);
424 time_real [0] = tv [0];
425 time_real [1] = tv [1] * 1000;
426#endif
427}
428
429INLINE void
430coro_times_add (struct coro *c)
431{
432 c->t_real [1] += time_real [1];
433 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
434 c->t_real [0] += time_real [0];
435
436 c->t_cpu [1] += time_cpu [1];
437 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
438 c->t_cpu [0] += time_cpu [0];
439}
440
441INLINE void
442coro_times_sub (struct coro *c)
443{
444 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
445 c->t_real [1] -= time_real [1];
446 c->t_real [0] -= time_real [0];
447
448 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
449 c->t_cpu [1] -= time_cpu [1];
450 c->t_cpu [0] -= time_cpu [0];
358} 451}
359 452
360/*****************************************************************************/ 453/*****************************************************************************/
361/* magic glue */ 454/* magic glue */
362 455
… …
462static int 555static int
463coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 556coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
464{ 557{
465 AV *padlist; 558 AV *padlist;
466 AV *av = (AV *)mg->mg_obj; 559 AV *av = (AV *)mg->mg_obj;
560
561 /* perl manages to free our internal AV and _then_ call us */
562 if (IN_DESTRUCT)
563 return 0;
467 564
468 /* casting is fun. */ 565 /* casting is fun. */
469 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 566 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
470 free_padlist (aTHX_ padlist); 567 free_padlist (aTHX_ padlist);
471 568
… …
520 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 617 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
521} 618}
522 619
523/** load & save, init *******************************************************/ 620/** load & save, init *******************************************************/
524 621
622/* swap sv heads, at least logically */
623static void
624swap_svs (pTHX_ Coro__State c)
625{
626 int i;
627
628 for (i = 0; i <= AvFILLp (c->swap_sv); )
629 {
630 SV *a = AvARRAY (c->swap_sv)[i++];
631 SV *b = AvARRAY (c->swap_sv)[i++];
632
633 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
634 SV tmp;
635
636 /* swap sv_any */
637 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
638
639 /* swap sv_flags */
640 SvFLAGS (&tmp) = SvFLAGS (a);
641 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
642 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
643
644#if PERL_VERSION_ATLEAST (5,10,0)
645 /* perl 5.10 complicates this _quite_ a bit, but it also is
646 * much faster, so no quarrels here. alternatively, we could
647 * sv_upgrade to avoid this.
648 */
649 {
650 /* swap sv_u */
651 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
652
653 /* if SvANY points to the head, we need to adjust the pointers,
654 * as the pointer for a still points to b, and maybe vice versa.
655 */
656 #define svany_in_head(type) \
657 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
658
659 if (svany_in_head (SvTYPE (a)))
660 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
661
662 if (svany_in_head (SvTYPE (b)))
663 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
664 }
665#endif
666 }
667}
668
669#define SWAP_SVS(coro) \
670 if (expect_false ((coro)->swap_sv)) \
671 swap_svs (aTHX_ (coro))
672
673static void
674on_enterleave_call (pTHX_ SV *cb);
675
525static void 676static void
526load_perl (pTHX_ Coro__State c) 677load_perl (pTHX_ Coro__State c)
527{ 678{
528 perl_slots *slot = c->slot; 679 perl_slots *slot = c->slot;
529 c->slot = 0; 680 c->slot = 0;
… …
556 PUTBACK; 707 PUTBACK;
557 } 708 }
558 709
559 slf_frame = c->slf_frame; 710 slf_frame = c->slf_frame;
560 CORO_THROW = c->except; 711 CORO_THROW = c->except;
712
713 if (expect_false (enable_times))
714 {
715 if (expect_false (!times_valid))
716 coro_times_update ();
717
718 coro_times_sub (c);
719 }
720
721 if (expect_false (c->on_enter))
722 {
723 int i;
724
725 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
726 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
727 }
728
729 SWAP_SVS (c);
561} 730}
562 731
563static void 732static void
564save_perl (pTHX_ Coro__State c) 733save_perl (pTHX_ Coro__State c)
565{ 734{
735 SWAP_SVS (c);
736
737 if (expect_false (c->on_leave))
738 {
739 int i;
740
741 for (i = AvFILLp (c->on_leave); i >= 0; --i)
742 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
743 }
744
745 times_valid = 0;
746
747 if (expect_false (enable_times))
748 {
749 coro_times_update (); times_valid = 1;
750 coro_times_add (c);
751 }
752
566 c->except = CORO_THROW; 753 c->except = CORO_THROW;
567 c->slf_frame = slf_frame; 754 c->slf_frame = slf_frame;
568 755
569 { 756 {
570 dSP; 757 dSP;
… …
583 { 770 {
584 while (expect_true (cxix >= 0)) 771 while (expect_true (cxix >= 0))
585 { 772 {
586 PERL_CONTEXT *cx = &ccstk[cxix--]; 773 PERL_CONTEXT *cx = &ccstk[cxix--];
587 774
588 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 775 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
589 { 776 {
590 CV *cv = cx->blk_sub.cv; 777 CV *cv = cx->blk_sub.cv;
591 778
592 if (expect_true (CvDEPTH (cv))) 779 if (expect_true (CvDEPTH (cv)))
593 { 780 {
… …
612 799
613 PUTBACK; 800 PUTBACK;
614 } 801 }
615 802
616 /* allocate some space on the context stack for our purposes */ 803 /* allocate some space on the context stack for our purposes */
617 /* we manually unroll here, as usually 2 slots is enough */ 804 if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
618 if (SLOT_COUNT >= 1) CXINC;
619 if (SLOT_COUNT >= 2) CXINC;
620 if (SLOT_COUNT >= 3) CXINC;
621 { 805 {
622 int i; 806 unsigned int i;
807
623 for (i = 3; i < SLOT_COUNT; ++i) 808 for (i = 0; i < SLOT_COUNT; ++i)
624 CXINC; 809 CXINC;
625 } 810
626 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 811 cxstack_ix -= SLOT_COUNT; /* undo allocation */
812 }
627 813
628 c->mainstack = PL_mainstack; 814 c->mainstack = PL_mainstack;
629 815
630 { 816 {
631 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 817 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
… …
652# define coro_init_stacks(thx) init_stacks () 838# define coro_init_stacks(thx) init_stacks ()
653#else 839#else
654static void 840static void
655coro_init_stacks (pTHX) 841coro_init_stacks (pTHX)
656{ 842{
657 PL_curstackinfo = new_stackinfo(32, 8); 843 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
658 PL_curstackinfo->si_type = PERLSI_MAIN; 844 PL_curstackinfo->si_type = PERLSI_MAIN;
659 PL_curstack = PL_curstackinfo->si_stack; 845 PL_curstack = PL_curstackinfo->si_stack;
660 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 846 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
661 847
662 PL_stack_base = AvARRAY(PL_curstack); 848 PL_stack_base = AvARRAY(PL_curstack);
… …
861slf_check_repeat (pTHX_ struct CoroSLF *frame) 1047slf_check_repeat (pTHX_ struct CoroSLF *frame)
862{ 1048{
863 return 1; 1049 return 1;
864} 1050}
865 1051
866static UNOP coro_setup_op; 1052static UNOP init_perl_op;
867 1053
868static void NOINLINE /* noinline to keep it out of the transfer fast path */ 1054static void NOINLINE /* noinline to keep it out of the transfer fast path */
869coro_setup (pTHX_ struct coro *coro) 1055init_perl (pTHX_ struct coro *coro)
870{ 1056{
871 /* 1057 /*
872 * emulate part of the perl startup here. 1058 * emulate part of the perl startup here.
873 */ 1059 */
874 coro_init_stacks (aTHX); 1060 coro_init_stacks (aTHX);
… …
881 PL_comppad_name_fill = 0; 1067 PL_comppad_name_fill = 0;
882 PL_comppad_name_floor = 0; 1068 PL_comppad_name_floor = 0;
883 PL_curpm = 0; 1069 PL_curpm = 0;
884 PL_curpad = 0; 1070 PL_curpad = 0;
885 PL_localizing = 0; 1071 PL_localizing = 0;
886 PL_dirty = 0;
887 PL_restartop = 0; 1072 PL_restartop = 0;
888#if PERL_VERSION_ATLEAST (5,10,0) 1073#if PERL_VERSION_ATLEAST (5,10,0)
889 PL_parser = 0; 1074 PL_parser = 0;
890#endif 1075#endif
891 PL_hints = 0; 1076 PL_hints = 0;
… …
923 */ 1108 */
924 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1109 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
925 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1110 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
926 1111
927 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
928 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
929 coro_setup_op.op_type = OP_ENTERSUB; 1114 init_perl_op.op_type = OP_ENTERSUB;
930 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
931 /* no flags etc. required, as an init function won't be called */ 1116 /* no flags etc. required, as an init function won't be called */
932 1117
933 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
934 1119
935 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
936 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
1122
1123 SWAP_SVS (coro);
1124
1125 if (expect_false (enable_times))
1126 {
1127 coro_times_update ();
1128 coro_times_sub (coro);
1129 }
937} 1130}
938 1131
939static void 1132static void
940coro_unwind_stacks (pTHX) 1133coro_unwind_stacks (pTHX)
941{ 1134{
… …
956 dounwind (-1); 1149 dounwind (-1);
957 } 1150 }
958} 1151}
959 1152
960static void 1153static void
961coro_destruct_perl (pTHX_ struct coro *coro) 1154destroy_perl (pTHX_ struct coro *coro)
962{ 1155{
1156 SV *svf [9];
1157
1158 {
1159 SV *old_current = SvRV (coro_current);
1160 struct coro *current = SvSTATE (old_current);
1161
1162 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1163
1164 save_perl (aTHX_ current);
1165
1166 /* this will cause transfer_check to croak on block*/
1167 SvRV_set (coro_current, (SV *)coro->hv);
1168
1169 load_perl (aTHX_ coro);
1170
963 coro_unwind_stacks (aTHX); 1171 coro_unwind_stacks (aTHX);
1172 coro_destruct_stacks (aTHX);
964 1173
965 SvREFCNT_dec (GvSV (PL_defgv)); 1174 /* restore swapped sv's */
966 SvREFCNT_dec (GvAV (PL_defgv)); 1175 SWAP_SVS (coro);
967 SvREFCNT_dec (GvSV (PL_errgv));
968 SvREFCNT_dec (PL_defoutgv);
969 SvREFCNT_dec (PL_rs);
970 SvREFCNT_dec (GvSV (irsgv));
971 SvREFCNT_dec (GvHV (PL_hintgv));
972 1176
973 SvREFCNT_dec (PL_diehook); 1177 // now save some sv's to be free'd later
974 SvREFCNT_dec (PL_warnhook); 1178 svf [0] = GvSV (PL_defgv);
1179 svf [1] = (SV *)GvAV (PL_defgv);
1180 svf [2] = GvSV (PL_errgv);
1181 svf [3] = (SV *)PL_defoutgv;
1182 svf [4] = PL_rs;
1183 svf [5] = GvSV (irsgv);
1184 svf [6] = (SV *)GvHV (PL_hintgv);
1185 svf [7] = PL_diehook;
1186 svf [8] = PL_warnhook;
1187 assert (9 == sizeof (svf) / sizeof (*svf));
1188
1189 SvRV_set (coro_current, old_current);
1190
1191 load_perl (aTHX_ current);
975 1192 }
1193
1194 {
1195 unsigned int i;
1196
1197 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1198 SvREFCNT_dec (svf [i]);
1199
976 SvREFCNT_dec (coro->saved_deffh); 1200 SvREFCNT_dec (coro->saved_deffh);
977 SvREFCNT_dec (coro->rouse_cb); 1201 SvREFCNT_dec (coro->rouse_cb);
978 SvREFCNT_dec (coro->invoke_cb); 1202 SvREFCNT_dec (coro->invoke_cb);
979 SvREFCNT_dec (coro->invoke_av); 1203 SvREFCNT_dec (coro->invoke_av);
980 1204 }
981 coro_destruct_stacks (aTHX);
982} 1205}
983 1206
984INLINE void 1207INLINE void
985free_coro_mortal (pTHX) 1208free_coro_mortal (pTHX)
986{ 1209{
… …
1183 /* somebody or something will hit me for both perl_run and PL_restartop */ 1406 /* somebody or something will hit me for both perl_run and PL_restartop */
1184 PL_restartop = PL_op; 1407 PL_restartop = PL_op;
1185 perl_run (PL_curinterp); 1408 perl_run (PL_curinterp);
1186 /* 1409 /*
1187 * Unfortunately, there is no way to get at the return values of the 1410 * Unfortunately, there is no way to get at the return values of the
1188 * coro body here, as perl_run destroys these 1411 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1412 * runtime errors here, as this is just a random interpreter, not a thread.
1189 */ 1413 */
1190 1414
1191 /* 1415 /*
1192 * If perl-run returns we assume exit() was being called or the coro 1416 * If perl-run returns we assume exit() was being called or the coro
1193 * fell off the end, which seems to be the only valid (non-bug) 1417 * fell off the end, which seems to be the only valid (non-bug)
… …
1280cctx_destroy (coro_cctx *cctx) 1504cctx_destroy (coro_cctx *cctx)
1281{ 1505{
1282 if (!cctx) 1506 if (!cctx)
1283 return; 1507 return;
1284 1508
1285 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1509 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1286 1510
1287 --cctx_count; 1511 --cctx_count;
1288 coro_destroy (&cctx->cctx); 1512 coro_destroy (&cctx->cctx);
1289 1513
1290 /* coro_transfer creates new, empty cctx's */ 1514 /* coro_transfer creates new, empty cctx's */
… …
1354 /* TODO: throwing up here is considered harmful */ 1578 /* TODO: throwing up here is considered harmful */
1355 1579
1356 if (expect_true (prev != next)) 1580 if (expect_true (prev != next))
1357 { 1581 {
1358 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1582 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1359 croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); 1583 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1360 1584
1361 if (expect_false (next->flags & CF_RUNNING))
1362 croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,");
1363
1364 if (expect_false (next->flags & CF_DESTROYED)) 1585 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED)))
1365 croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); 1586 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1366 1587
1367#if !PERL_VERSION_ATLEAST (5,10,0) 1588#if !PERL_VERSION_ATLEAST (5,10,0)
1368 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1589 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1369 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1590 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
1370#endif 1591#endif
… …
1403 if (expect_false (next->flags & CF_NEW)) 1624 if (expect_false (next->flags & CF_NEW))
1404 { 1625 {
1405 /* need to start coroutine */ 1626 /* need to start coroutine */
1406 next->flags &= ~CF_NEW; 1627 next->flags &= ~CF_NEW;
1407 /* setup coroutine call */ 1628 /* setup coroutine call */
1408 coro_setup (aTHX_ next); 1629 init_perl (aTHX_ next);
1409 } 1630 }
1410 else 1631 else
1411 load_perl (aTHX_ next); 1632 load_perl (aTHX_ next);
1412 1633
1413 /* possibly untie and reuse the cctx */ 1634 /* possibly untie and reuse the cctx */
… …
1452#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1673#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1453#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1674#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1454 1675
1455/** high level stuff ********************************************************/ 1676/** high level stuff ********************************************************/
1456 1677
1457static int 1678static void
1458coro_state_destroy (pTHX_ struct coro *coro) 1679coro_state_destroy (pTHX_ struct coro *coro)
1459{ 1680{
1460 if (coro->flags & CF_DESTROYED) 1681 if (coro->flags & CF_DESTROYED)
1461 return 0; 1682 return;
1462 1683
1463 if (coro->on_destroy)
1464 coro->on_destroy (aTHX_ coro); 1684 slf_destroy (aTHX_ coro);
1465 1685
1466 coro->flags |= CF_DESTROYED; 1686 coro->flags |= CF_DESTROYED;
1467 1687
1468 if (coro->flags & CF_READY) 1688 if (coro->flags & CF_READY)
1469 { 1689 {
… …
1476 1696
1477 if (coro->mainstack 1697 if (coro->mainstack
1478 && coro->mainstack != main_mainstack 1698 && coro->mainstack != main_mainstack
1479 && coro->slot 1699 && coro->slot
1480 && !PL_dirty) 1700 && !PL_dirty)
1481 {
1482 struct coro temp;
1483
1484 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1485
1486 save_perl (aTHX_ &temp);
1487 load_perl (aTHX_ coro);
1488
1489 coro_destruct_perl (aTHX_ coro); 1701 destroy_perl (aTHX_ coro);
1490 1702
1491 load_perl (aTHX_ &temp); 1703 if (coro->next) coro->next->prev = coro->prev;
1492 1704 if (coro->prev) coro->prev->next = coro->next;
1493 coro->slot = 0; 1705 if (coro == coro_first) coro_first = coro->next;
1494 }
1495 1706
1496 cctx_destroy (coro->cctx); 1707 cctx_destroy (coro->cctx);
1497 SvREFCNT_dec (coro->startcv); 1708 SvREFCNT_dec (coro->startcv);
1498 SvREFCNT_dec (coro->args); 1709 SvREFCNT_dec (coro->args);
1710 SvREFCNT_dec (coro->swap_sv);
1499 SvREFCNT_dec (CORO_THROW); 1711 SvREFCNT_dec (CORO_THROW);
1500
1501 if (coro->next) coro->next->prev = coro->prev;
1502 if (coro->prev) coro->prev->next = coro->next;
1503 if (coro == coro_first) coro_first = coro->next;
1504
1505 return 1;
1506} 1712}
1507 1713
1508static int 1714static int
1509coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1715coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1510{ 1716{
… …
1558 1764
1559 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1765 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1560 TRANSFER (ta, 1); 1766 TRANSFER (ta, 1);
1561} 1767}
1562 1768
1563/*****************************************************************************/
1564/* gensub: simple closure generation utility */
1565
1566#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1567
1568/* create a closure from XS, returns a code reference */
1569/* the arg can be accessed via GENSUB_ARG from the callback */
1570/* the callback must use dXSARGS/XSRETURN */
1571static SV *
1572gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1573{
1574 CV *cv = (CV *)newSV (0);
1575
1576 sv_upgrade ((SV *)cv, SVt_PVCV);
1577
1578 CvANON_on (cv);
1579 CvISXSUB_on (cv);
1580 CvXSUB (cv) = xsub;
1581 GENSUB_ARG = arg;
1582
1583 return newRV_noinc ((SV *)cv);
1584}
1585
1586/** Coro ********************************************************************/ 1769/** Coro ********************************************************************/
1587 1770
1588INLINE void 1771INLINE void
1589coro_enq (pTHX_ struct coro *coro) 1772coro_enq (pTHX_ struct coro *coro)
1590{ 1773{
1591 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1774 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1592}
1593 1775
1594INLINE SV * 1776 SvREFCNT_inc_NN (coro->hv);
1777
1778 coro->next_ready = 0;
1779 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1780 ready [1] = coro;
1781}
1782
1783INLINE struct coro *
1595coro_deq (pTHX) 1784coro_deq (pTHX)
1596{ 1785{
1597 int prio; 1786 int prio;
1598 1787
1599 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1788 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1600 if (AvFILLp (coro_ready [prio]) >= 0) 1789 {
1601 return av_shift (coro_ready [prio]); 1790 struct coro **ready = coro_ready [prio];
1791
1792 if (ready [0])
1793 {
1794 struct coro *coro = ready [0];
1795 ready [0] = coro->next_ready;
1796 return coro;
1797 }
1798 }
1602 1799
1603 return 0; 1800 return 0;
1801}
1802
1803static void
1804invoke_sv_ready_hook_helper (void)
1805{
1806 dTHX;
1807 dSP;
1808
1809 ENTER;
1810 SAVETMPS;
1811
1812 PUSHMARK (SP);
1813 PUTBACK;
1814 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1815
1816 FREETMPS;
1817 LEAVE;
1604} 1818}
1605 1819
1606static int 1820static int
1607api_ready (pTHX_ SV *coro_sv) 1821api_ready (pTHX_ SV *coro_sv)
1608{ 1822{
1609 struct coro *coro;
1610 SV *sv_hook;
1611 void (*xs_hook)(void);
1612
1613 coro = SvSTATE (coro_sv); 1823 struct coro *coro = SvSTATE (coro_sv);
1614 1824
1615 if (coro->flags & CF_READY) 1825 if (coro->flags & CF_READY)
1616 return 0; 1826 return 0;
1617 1827
1618 coro->flags |= CF_READY; 1828 coro->flags |= CF_READY;
1619 1829
1620 sv_hook = coro_nready ? 0 : coro_readyhook;
1621 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1622
1623 coro_enq (aTHX_ coro); 1830 coro_enq (aTHX_ coro);
1624 ++coro_nready;
1625 1831
1626 if (sv_hook) 1832 if (!coro_nready++)
1627 { 1833 if (coroapi.readyhook)
1628 dSP; 1834 coroapi.readyhook ();
1629
1630 ENTER;
1631 SAVETMPS;
1632
1633 PUSHMARK (SP);
1634 PUTBACK;
1635 call_sv (sv_hook, G_VOID | G_DISCARD);
1636
1637 FREETMPS;
1638 LEAVE;
1639 }
1640
1641 if (xs_hook)
1642 xs_hook ();
1643 1835
1644 return 1; 1836 return 1;
1645} 1837}
1646 1838
1647static int 1839static int
… …
1670static void 1862static void
1671prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1863prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1672{ 1864{
1673 for (;;) 1865 for (;;)
1674 { 1866 {
1675 SV *next_sv = coro_deq (aTHX); 1867 struct coro *next = coro_deq (aTHX);
1676 1868
1677 if (expect_true (next_sv)) 1869 if (expect_true (next))
1678 { 1870 {
1679 struct coro *next = SvSTATE_hv (next_sv);
1680
1681 /* cannot transfer to destroyed coros, skip and look for next */ 1871 /* cannot transfer to destroyed coros, skip and look for next */
1682 if (expect_false (next->flags & CF_DESTROYED)) 1872 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1683 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1873 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1684 else 1874 else
1685 { 1875 {
1686 next->flags &= ~CF_READY; 1876 next->flags &= ~CF_READY;
1687 --coro_nready; 1877 --coro_nready;
1688 1878
… …
1694 { 1884 {
1695 /* nothing to schedule: call the idle handler */ 1885 /* nothing to schedule: call the idle handler */
1696 if (SvROK (sv_idle) 1886 if (SvROK (sv_idle)
1697 && SvOBJECT (SvRV (sv_idle))) 1887 && SvOBJECT (SvRV (sv_idle)))
1698 { 1888 {
1889 if (SvRV (sv_idle) == SvRV (coro_current))
1890 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1891
1699 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1892 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1700 api_ready (aTHX_ SvRV (sv_idle)); 1893 api_ready (aTHX_ SvRV (sv_idle));
1701 --coro_nready; 1894 --coro_nready;
1702 } 1895 }
1703 else 1896 else
1704 { 1897 {
1898 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1705 dSP; 1899 dSP;
1706 1900
1707 ENTER; 1901 ENTER;
1708 SAVETMPS; 1902 SAVETMPS;
1709 1903
… …
1819 2013
1820static void 2014static void
1821coro_call_on_destroy (pTHX_ struct coro *coro) 2015coro_call_on_destroy (pTHX_ struct coro *coro)
1822{ 2016{
1823 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2017 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0);
1824 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1825 2018
1826 if (on_destroyp) 2019 if (on_destroyp)
1827 { 2020 {
1828 AV *on_destroy = (AV *)SvRV (*on_destroyp); 2021 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2022 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2023 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
1829 2024
1830 while (AvFILLp (on_destroy) >= 0) 2025 while (AvFILLp (on_destroy) >= 0)
1831 { 2026 {
1832 dSP; /* don't disturb outer sp */ 2027 dSP; /* don't disturb outer sp */
1833 SV *cb = av_pop (on_destroy); 2028 SV *cb = av_pop (on_destroy);
… …
1835 PUSHMARK (SP); 2030 PUSHMARK (SP);
1836 2031
1837 if (statusp) 2032 if (statusp)
1838 { 2033 {
1839 int i; 2034 int i;
1840 AV *status = (AV *)SvRV (*statusp);
1841 EXTEND (SP, AvFILLp (status) + 1); 2035 EXTEND (SP, AvFILLp (status) + 1);
1842 2036
1843 for (i = 0; i <= AvFILLp (status); ++i) 2037 for (i = 0; i <= AvFILLp (status); ++i)
1844 PUSHs (AvARRAY (status)[i]); 2038 PUSHs (AvARRAY (status)[i]);
1845 } 2039 }
… …
1849 } 2043 }
1850 } 2044 }
1851} 2045}
1852 2046
1853static void 2047static void
1854slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2048coro_set_status (pTHX_ HV *coro_hv, SV **arg, int items)
1855{ 2049{
1856 int i;
1857 HV *hv = (HV *)SvRV (coro_current);
1858 AV *av = newAV (); 2050 AV *av = newAV ();
1859 2051
2052 /* items are actually not so common, so optimise for this case */
2053 if (items)
2054 {
2055 int i;
2056
1860 av_extend (av, items - 1); 2057 av_extend (av, items - 1);
2058
1861 for (i = 0; i < items; ++i) 2059 for (i = 0; i < items; ++i)
1862 av_push (av, SvREFCNT_inc_NN (arg [i])); 2060 av_push (av, SvREFCNT_inc_NN (arg [i]));
2061 }
1863 2062
1864 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2063 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2064}
1865 2065
2066static void
2067slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2068{
1866 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2069 av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */
1867 api_ready (aTHX_ sv_manager); 2070 api_ready (aTHX_ sv_manager);
1868 2071
1869 frame->prepare = prepare_schedule; 2072 frame->prepare = prepare_schedule;
1870 frame->check = slf_check_repeat; 2073 frame->check = slf_check_repeat;
1871 2074
1872 /* as a minor optimisation, we could unwind all stacks here */ 2075 /* as a minor optimisation, we could unwind all stacks here */
1873 /* but that puts extra pressure on pp_slf, and is not worth much */ 2076 /* but that puts extra pressure on pp_slf, and is not worth much */
1874 /*coro_unwind_stacks (aTHX);*/ 2077 /*coro_unwind_stacks (aTHX);*/
2078}
2079
2080static void
2081slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2082{
2083 HV *coro_hv = (HV *)SvRV (coro_current);
2084
2085 coro_set_status (aTHX_ coro_hv, arg, items);
2086 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2087}
2088
2089static void
2090slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2091{
2092 HV *coro_hv;
2093 struct coro *coro;
2094
2095 if (items <= 0)
2096 croak ("Coro::cancel called without coro object,");
2097
2098 coro = SvSTATE (arg [0]);
2099 coro_hv = coro->hv;
2100
2101 coro_set_status (aTHX_ coro_hv, arg + 1, items - 1);
2102
2103 if (expect_false (coro->flags & CF_NOCANCEL))
2104 {
2105 /* coro currently busy cancelling something, so just notify it */
2106 coro->slf_frame.data = (void *)coro;
2107
2108 frame->prepare = prepare_nop;
2109 frame->check = slf_check_nop;
2110 }
2111 else if (coro_hv == (HV *)SvRV (coro_current))
2112 {
2113 /* cancelling the current coro is allowed, and equals terminate */
2114 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2115 }
2116 else
2117 {
2118 struct coro *self = SvSTATE_current;
2119
2120 /* otherwise we cancel directly, purely for speed reasons
2121 * unfortunately, this requires some magic trickery, as
2122 * somebody else could cancel us, so we have to fight the cancellation.
2123 * this is ugly, and hopefully fully worth the extra speed.
2124 * besides, I can't get the slow-but-safe version working...
2125 */
2126 slf_frame.data = 0;
2127 self->flags |= CF_NOCANCEL;
2128
2129 coro_state_destroy (aTHX_ coro);
2130 coro_call_on_destroy (aTHX_ coro);
2131
2132 self->flags &= ~CF_NOCANCEL;
2133
2134 if (slf_frame.data)
2135 {
2136 /* while we were busy we have been cancelled, so terminate */
2137 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2138 }
2139 else
2140 {
2141 frame->prepare = prepare_nop;
2142 frame->check = slf_check_nop;
2143 }
2144 }
2145}
2146
2147static int
2148slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2149{
2150 frame->prepare = 0;
2151 coro_unwind_stacks (aTHX);
2152
2153 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2154
2155 return 1;
2156}
2157
2158static int
2159safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2160{
2161 if (coro->cctx)
2162 croak ("coro inside C callback, unable to cancel at this time, caught");
2163
2164 if (coro->flags & CF_NEW)
2165 {
2166 coro_set_status (aTHX_ coro->hv, arg, items);
2167 coro_state_destroy (aTHX_ coro);
2168 coro_call_on_destroy (aTHX_ coro);
2169 }
2170 else
2171 {
2172 if (!coro->slf_frame.prepare)
2173 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2174
2175 slf_destroy (aTHX_ coro);
2176
2177 coro_set_status (aTHX_ coro->hv, arg, items);
2178 coro->slf_frame.prepare = prepare_nop;
2179 coro->slf_frame.check = slf_check_safe_cancel;
2180
2181 api_ready (aTHX_ coro->hv);
2182 }
2183
2184 return 1;
1875} 2185}
1876 2186
1877/*****************************************************************************/ 2187/*****************************************************************************/
1878/* async pool handler */ 2188/* async pool handler */
1879 2189
… …
1919 coro->saved_deffh = 0; 2229 coro->saved_deffh = 0;
1920 2230
1921 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2231 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1922 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2232 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1923 { 2233 {
1924 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2234 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1925 coro->invoke_av = newAV (); 2235 return;
1926
1927 frame->prepare = prepare_nop;
1928 } 2236 }
1929 else 2237 else
1930 { 2238 {
1931 av_clear (GvAV (PL_defgv)); 2239 av_clear (GvAV (PL_defgv));
1932 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2240 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
1957 2265
1958static void 2266static void
1959coro_rouse_callback (pTHX_ CV *cv) 2267coro_rouse_callback (pTHX_ CV *cv)
1960{ 2268{
1961 dXSARGS; 2269 dXSARGS;
1962 SV *data = (SV *)GENSUB_ARG; 2270 SV *data = (SV *)S_GENSUB_ARG;
1963 2271
1964 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2272 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1965 { 2273 {
1966 /* first call, set args */ 2274 /* first call, set args */
2275 SV *coro = SvRV (data);
1967 AV *av = newAV (); 2276 AV *av = newAV ();
1968 SV *coro = SvRV (data);
1969 2277
1970 SvRV_set (data, (SV *)av); 2278 SvRV_set (data, (SV *)av);
1971 api_ready (aTHX_ coro);
1972 SvREFCNT_dec (coro);
1973 2279
1974 /* better take a full copy of the arguments */ 2280 /* better take a full copy of the arguments */
1975 while (items--) 2281 while (items--)
1976 av_store (av, items, newSVsv (ST (items))); 2282 av_store (av, items, newSVsv (ST (items)));
2283
2284 api_ready (aTHX_ coro);
2285 SvREFCNT_dec (coro);
1977 } 2286 }
1978 2287
1979 XSRETURN_EMPTY; 2288 XSRETURN_EMPTY;
1980} 2289}
1981 2290
… …
1998 2307
1999 EXTEND (SP, AvFILLp (av) + 1); 2308 EXTEND (SP, AvFILLp (av) + 1);
2000 for (i = 0; i <= AvFILLp (av); ++i) 2309 for (i = 0; i <= AvFILLp (av); ++i)
2001 PUSHs (sv_2mortal (AvARRAY (av)[i])); 2310 PUSHs (sv_2mortal (AvARRAY (av)[i]));
2002 2311
2003 /* we have stolen the elements, so ste length to zero and free */ 2312 /* we have stolen the elements, so set length to zero and free */
2004 AvFILLp (av) = -1; 2313 AvFILLp (av) = -1;
2005 av_undef (av); 2314 av_undef (av);
2006 2315
2007 PUTBACK; 2316 PUTBACK;
2008 } 2317 }
… …
2032 || SvTYPE (SvRV (cb)) != SVt_PVCV 2341 || SvTYPE (SvRV (cb)) != SVt_PVCV
2033 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2342 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2034 croak ("Coro::rouse_wait called with illegal callback argument,"); 2343 croak ("Coro::rouse_wait called with illegal callback argument,");
2035 2344
2036 { 2345 {
2037 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2346 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2038 SV *data = (SV *)GENSUB_ARG; 2347 SV *data = (SV *)S_GENSUB_ARG;
2039 2348
2040 frame->data = (void *)data; 2349 frame->data = (void *)data;
2041 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2350 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2042 frame->check = slf_check_rouse_wait; 2351 frame->check = slf_check_rouse_wait;
2043 } 2352 }
… …
2047coro_new_rouse_cb (pTHX) 2356coro_new_rouse_cb (pTHX)
2048{ 2357{
2049 HV *hv = (HV *)SvRV (coro_current); 2358 HV *hv = (HV *)SvRV (coro_current);
2050 struct coro *coro = SvSTATE_hv (hv); 2359 struct coro *coro = SvSTATE_hv (hv);
2051 SV *data = newRV_inc ((SV *)hv); 2360 SV *data = newRV_inc ((SV *)hv);
2052 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2361 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2053 2362
2054 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2363 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2055 SvREFCNT_dec (data); /* magicext increases the refcount */ 2364 SvREFCNT_dec (data); /* magicext increases the refcount */
2056 2365
2057 SvREFCNT_dec (coro->rouse_cb); 2366 SvREFCNT_dec (coro->rouse_cb);
… …
2154static void 2463static void
2155slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2464slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2156{ 2465{
2157 frame->prepare = prepare_cede_notself; 2466 frame->prepare = prepare_cede_notself;
2158 frame->check = slf_check_nop; 2467 frame->check = slf_check_nop;
2468}
2469
2470/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2471static void
2472slf_destroy (pTHX_ struct coro *coro)
2473{
2474 /* this callback is reserved for slf functions needing to do cleanup */
2475 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2476 coro->slf_frame.destroy (aTHX_ coro);
2477
2478 /*
2479 * The on_destroy above most likely is from an SLF call.
2480 * Since by definition the SLF call will not finish when we destroy
2481 * the coro, we will have to force-finish it here, otherwise
2482 * cleanup functions cannot call SLF functions.
2483 */
2484 coro->slf_frame.prepare = 0;
2159} 2485}
2160 2486
2161/* 2487/*
2162 * these not obviously related functions are all rolled into one 2488 * these not obviously related functions are all rolled into one
2163 * function to increase chances that they all will call transfer with the same 2489 * function to increase chances that they all will call transfer with the same
… …
2282 if (PL_op->op_flags & OPf_STACKED) 2608 if (PL_op->op_flags & OPf_STACKED)
2283 { 2609 {
2284 if (items > slf_arga) 2610 if (items > slf_arga)
2285 { 2611 {
2286 slf_arga = items; 2612 slf_arga = items;
2287 free (slf_argv); 2613 Safefree (slf_argv);
2288 slf_argv = malloc (slf_arga * sizeof (SV *)); 2614 New (0, slf_argv, slf_arga, SV *);
2289 } 2615 }
2290 2616
2291 slf_argc = items; 2617 slf_argc = items;
2292 2618
2293 for (i = 0; i < items; ++i) 2619 for (i = 0; i < items; ++i)
… …
2298 2624
2299 PL_op->op_ppaddr = pp_slf; 2625 PL_op->op_ppaddr = pp_slf;
2300 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ 2626 /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */
2301 2627
2302 PL_op = (OP *)&slf_restore; 2628 PL_op = (OP *)&slf_restore;
2629}
2630
2631/*****************************************************************************/
2632/* dynamic wind */
2633
2634static void
2635on_enterleave_call (pTHX_ SV *cb)
2636{
2637 dSP;
2638
2639 PUSHSTACK;
2640
2641 PUSHMARK (SP);
2642 PUTBACK;
2643 call_sv (cb, G_VOID | G_DISCARD);
2644 SPAGAIN;
2645
2646 POPSTACK;
2647}
2648
2649static SV *
2650coro_avp_pop_and_free (pTHX_ AV **avp)
2651{
2652 AV *av = *avp;
2653 SV *res = av_pop (av);
2654
2655 if (AvFILLp (av) < 0)
2656 {
2657 *avp = 0;
2658 SvREFCNT_dec (av);
2659 }
2660
2661 return res;
2662}
2663
2664static void
2665coro_pop_on_enter (pTHX_ void *coro)
2666{
2667 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter);
2668 SvREFCNT_dec (cb);
2669}
2670
2671static void
2672coro_pop_on_leave (pTHX_ void *coro)
2673{
2674 SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave);
2675 on_enterleave_call (aTHX_ sv_2mortal (cb));
2303} 2676}
2304 2677
2305/*****************************************************************************/ 2678/*****************************************************************************/
2306/* PerlIO::cede */ 2679/* PerlIO::cede */
2307 2680
… …
2381/* Coro::Semaphore & Coro::Signal */ 2754/* Coro::Semaphore & Coro::Signal */
2382 2755
2383static SV * 2756static SV *
2384coro_waitarray_new (pTHX_ int count) 2757coro_waitarray_new (pTHX_ int count)
2385{ 2758{
2386 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2759 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2387 AV *av = newAV (); 2760 AV *av = newAV ();
2388 SV **ary; 2761 SV **ary;
2389 2762
2390 /* unfortunately, building manually saves memory */ 2763 /* unfortunately, building manually saves memory */
2391 Newx (ary, 2, SV *); 2764 Newx (ary, 2, SV *);
… …
2442 SvREFCNT_dec (cb); 2815 SvREFCNT_dec (cb);
2443 } 2816 }
2444} 2817}
2445 2818
2446static void 2819static void
2447coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2820coro_semaphore_destroy (pTHX_ struct coro *coro)
2448{ 2821{
2449 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2822 /* call $sem->adjust (0) to possibly wake up some other waiters */
2450 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2823 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2451} 2824}
2452 2825
… …
2459 /* if we are about to throw, don't actually acquire the lock, just throw */ 2832 /* if we are about to throw, don't actually acquire the lock, just throw */
2460 if (CORO_THROW) 2833 if (CORO_THROW)
2461 return 0; 2834 return 0;
2462 else if (SvIVX (count_sv) > 0) 2835 else if (SvIVX (count_sv) > 0)
2463 { 2836 {
2464 SvSTATE_current->on_destroy = 0; 2837 frame->destroy = 0;
2465 2838
2466 if (acquire) 2839 if (acquire)
2467 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2840 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2468 else 2841 else
2469 coro_semaphore_adjust (aTHX_ av, 0); 2842 coro_semaphore_adjust (aTHX_ av, 0);
… …
2512 { 2885 {
2513 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2886 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2514 2887
2515 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2888 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2516 frame->prepare = prepare_schedule; 2889 frame->prepare = prepare_schedule;
2517
2518 /* to avoid race conditions when a woken-up coro gets terminated */ 2890 /* to avoid race conditions when a woken-up coro gets terminated */
2519 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2891 /* we arrange for a temporary on_destroy that calls adjust (0) */
2520 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2892 frame->destroy = coro_semaphore_destroy;
2521 } 2893 }
2522} 2894}
2523 2895
2524static void 2896static void
2525slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2897slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
2533{ 2905{
2534 if (items >= 2) 2906 if (items >= 2)
2535 { 2907 {
2536 /* callback form */ 2908 /* callback form */
2537 AV *av = (AV *)SvRV (arg [0]); 2909 AV *av = (AV *)SvRV (arg [0]);
2538 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2910 SV *cb_cv = s_get_cv_croak (arg [1]);
2539 2911
2540 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2912 av_push (av, SvREFCNT_inc_NN (cb_cv));
2541 2913
2542 if (SvIVX (AvARRAY (av)[0]) > 0) 2914 if (SvIVX (AvARRAY (av)[0]) > 0)
2543 coro_semaphore_adjust (aTHX_ av, 0); 2915 coro_semaphore_adjust (aTHX_ av, 0);
2544 2916
2545 frame->prepare = prepare_nop; 2917 frame->prepare = prepare_nop;
… …
2569 AvARRAY (av)[0] = AvARRAY (av)[1]; 2941 AvARRAY (av)[0] = AvARRAY (av)[1];
2570 AvARRAY (av)[1] = cb; 2942 AvARRAY (av)[1] = cb;
2571 2943
2572 cb = av_shift (av); 2944 cb = av_shift (av);
2573 2945
2946 if (SvTYPE (cb) == SVt_PVCV)
2947 {
2948 dSP;
2949 PUSHMARK (SP);
2950 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2951 PUTBACK;
2952 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2953 }
2954 else
2955 {
2574 api_ready (aTHX_ cb); 2956 api_ready (aTHX_ cb);
2575 sv_setiv (cb, 0); /* signal waiter */ 2957 sv_setiv (cb, 0); /* signal waiter */
2958 }
2959
2576 SvREFCNT_dec (cb); 2960 SvREFCNT_dec (cb);
2577 2961
2578 --count; 2962 --count;
2579 } 2963 }
2580} 2964}
… …
2589static void 2973static void
2590slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2974slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2591{ 2975{
2592 AV *av = (AV *)SvRV (arg [0]); 2976 AV *av = (AV *)SvRV (arg [0]);
2593 2977
2978 if (items >= 2)
2979 {
2980 SV *cb_cv = s_get_cv_croak (arg [1]);
2981 av_push (av, SvREFCNT_inc_NN (cb_cv));
2982
2594 if (SvIVX (AvARRAY (av)[0])) 2983 if (SvIVX (AvARRAY (av)[0]))
2984 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2985
2986 frame->prepare = prepare_nop;
2987 frame->check = slf_check_nop;
2988 }
2989 else if (SvIVX (AvARRAY (av)[0]))
2595 { 2990 {
2596 SvIVX (AvARRAY (av)[0]) = 0; 2991 SvIVX (AvARRAY (av)[0]) = 0;
2597 frame->prepare = prepare_nop; 2992 frame->prepare = prepare_nop;
2598 frame->check = slf_check_nop; 2993 frame->check = slf_check_nop;
2599 } 2994 }
2600 else 2995 else
2601 { 2996 {
2602 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2997 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2603 2998
2604 av_push (av, waiter); 2999 av_push (av, waiter);
2605 3000
2606 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 3001 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2607 frame->prepare = prepare_schedule; 3002 frame->prepare = prepare_schedule;
… …
2625 3020
2626static void 3021static void
2627coro_aio_callback (pTHX_ CV *cv) 3022coro_aio_callback (pTHX_ CV *cv)
2628{ 3023{
2629 dXSARGS; 3024 dXSARGS;
2630 AV *state = (AV *)GENSUB_ARG; 3025 AV *state = (AV *)S_GENSUB_ARG;
2631 SV *coro = av_pop (state); 3026 SV *coro = av_pop (state);
2632 SV *data_sv = newSV (sizeof (struct io_state)); 3027 SV *data_sv = newSV (sizeof (struct io_state));
2633 3028
2634 av_extend (state, items - 1); 3029 av_extend (state, items - 1);
2635 3030
… …
2749 3144
2750 for (i = 0; i < items; ++i) 3145 for (i = 0; i < items; ++i)
2751 PUSHs (arg [i]); 3146 PUSHs (arg [i]);
2752 3147
2753 /* now push the callback closure */ 3148 /* now push the callback closure */
2754 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 3149 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2755 3150
2756 /* now call the AIO function - we assume our request is uncancelable */ 3151 /* now call the AIO function - we assume our request is uncancelable */
2757 PUTBACK; 3152 PUTBACK;
2758 call_sv ((SV *)req, G_VOID | G_DISCARD); 3153 call_sv ((SV *)req, G_VOID | G_DISCARD);
2759 } 3154 }
2760 3155
2761 /* now that the requets is going, we loop toll we have a result */ 3156 /* now that the request is going, we loop till we have a result */
2762 frame->data = (void *)state; 3157 frame->data = (void *)state;
2763 frame->prepare = prepare_schedule; 3158 frame->prepare = prepare_schedule;
2764 frame->check = slf_check_aio_req; 3159 frame->check = slf_check_aio_req;
2765} 3160}
2766 3161
… …
2777/*****************************************************************************/ 3172/*****************************************************************************/
2778 3173
2779#if CORO_CLONE 3174#if CORO_CLONE
2780# include "clone.c" 3175# include "clone.c"
2781#endif 3176#endif
3177
3178/*****************************************************************************/
3179
3180static SV *
3181coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
3182{
3183 SV *coro_sv;
3184 struct coro *coro;
3185 MAGIC *mg;
3186 HV *hv;
3187 SV *cb;
3188 int i;
3189
3190 if (argc > 0)
3191 {
3192 cb = s_get_cv_croak (argv [0]);
3193
3194 if (!is_coro)
3195 {
3196 if (CvISXSUB (cb))
3197 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3198
3199 if (!CvROOT (cb))
3200 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3201 }
3202 }
3203
3204 Newz (0, coro, 1, struct coro);
3205 coro->args = newAV ();
3206 coro->flags = CF_NEW;
3207
3208 if (coro_first) coro_first->prev = coro;
3209 coro->next = coro_first;
3210 coro_first = coro;
3211
3212 coro->hv = hv = newHV ();
3213 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3214 mg->mg_flags |= MGf_DUP;
3215 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3216
3217 if (argc > 0)
3218 {
3219 av_extend (coro->args, argc + is_coro - 1);
3220
3221 if (is_coro)
3222 {
3223 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3224 cb = (SV *)cv_coro_run;
3225 }
3226
3227 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3228
3229 for (i = 1; i < argc; i++)
3230 av_push (coro->args, newSVsv (argv [i]));
3231 }
3232
3233 return coro_sv;
3234}
2782 3235
2783MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3236MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2784 3237
2785PROTOTYPES: DISABLE 3238PROTOTYPES: DISABLE
2786 3239
… …
2839 coroapi.prepare_nop = prepare_nop; 3292 coroapi.prepare_nop = prepare_nop;
2840 coroapi.prepare_schedule = prepare_schedule; 3293 coroapi.prepare_schedule = prepare_schedule;
2841 coroapi.prepare_cede = prepare_cede; 3294 coroapi.prepare_cede = prepare_cede;
2842 coroapi.prepare_cede_notself = prepare_cede_notself; 3295 coroapi.prepare_cede_notself = prepare_cede_notself;
2843 3296
2844 { 3297 time_init (aTHX);
2845 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
2846 3298
2847 if (!svp) croak ("Time::HiRes is required");
2848 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2849
2850 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2851 }
2852
2853 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 3299 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2854} 3300}
2855 3301
2856SV * 3302SV *
2857new (char *klass, ...) 3303new (SV *klass, ...)
2858 ALIAS: 3304 ALIAS:
2859 Coro::new = 1 3305 Coro::new = 1
2860 CODE: 3306 CODE:
2861{ 3307 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
2862 struct coro *coro; 3308 OUTPUT:
2863 MAGIC *mg;
2864 HV *hv;
2865 CV *cb;
2866 int i;
2867
2868 if (items > 1)
2869 {
2870 cb = coro_sv_2cv (aTHX_ ST (1));
2871
2872 if (!ix)
2873 {
2874 if (CvISXSUB (cb))
2875 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2876
2877 if (!CvROOT (cb))
2878 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
2879 }
2880 }
2881
2882 Newz (0, coro, 1, struct coro);
2883 coro->args = newAV ();
2884 coro->flags = CF_NEW;
2885
2886 if (coro_first) coro_first->prev = coro;
2887 coro->next = coro_first;
2888 coro_first = coro;
2889
2890 coro->hv = hv = newHV ();
2891 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
2892 mg->mg_flags |= MGf_DUP;
2893 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
2894
2895 if (items > 1)
2896 {
2897 av_extend (coro->args, items - 1 + ix - 1);
2898
2899 if (ix)
2900 {
2901 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2902 cb = cv_coro_run;
2903 }
2904
2905 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2906
2907 for (i = 2; i < items; i++)
2908 av_push (coro->args, newSVsv (ST (i)));
2909 }
2910}
2911 OUTPUT:
2912 RETVAL 3309 RETVAL
2913 3310
2914void 3311void
2915transfer (...) 3312transfer (...)
2916 PROTOTYPE: $$ 3313 PROTOTYPE: $$
2917 CODE: 3314 CODE:
2918 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3315 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2919
2920bool
2921_destroy (SV *coro_sv)
2922 CODE:
2923 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
2924 OUTPUT:
2925 RETVAL
2926 3316
2927void 3317void
2928_exit (int code) 3318_exit (int code)
2929 PROTOTYPE: $ 3319 PROTOTYPE: $
2930 CODE: 3320 CODE:
… …
3005 eval = 1 3395 eval = 1
3006 CODE: 3396 CODE:
3007{ 3397{
3008 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3398 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3009 { 3399 {
3010 struct coro temp; 3400 struct coro *current = SvSTATE_current;
3401 struct CoroSLF slf_save;
3011 3402
3012 if (!(coro->flags & CF_RUNNING)) 3403 if (current != coro)
3013 { 3404 {
3014 PUTBACK; 3405 PUTBACK;
3015 save_perl (aTHX_ &temp); 3406 save_perl (aTHX_ current);
3016 load_perl (aTHX_ coro); 3407 load_perl (aTHX_ coro);
3408 /* the coro is most likely in an active SLF call.
3409 * while not strictly required (the code we execute is
3410 * not allowed to call any SLF functions), it's cleaner
3411 * to reinitialise the slf_frame and restore it later.
3412 * This might one day allow us to actually do SLF calls
3413 * from code executed here.
3414 */
3415 slf_save = slf_frame;
3416 slf_frame.prepare = 0;
3417 SPAGAIN;
3017 } 3418 }
3018 3419
3019 {
3020 dSP;
3021 ENTER;
3022 SAVETMPS;
3023 PUTBACK;
3024 PUSHSTACK; 3420 PUSHSTACK;
3421
3025 PUSHMARK (SP); 3422 PUSHMARK (SP);
3423 PUTBACK;
3026 3424
3027 if (ix) 3425 if (ix)
3028 eval_sv (coderef, 0); 3426 eval_sv (coderef, 0);
3029 else 3427 else
3030 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); 3428 call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD);
3031 3429
3032 POPSTACK; 3430 POPSTACK;
3033 SPAGAIN; 3431 SPAGAIN;
3034 FREETMPS;
3035 LEAVE;
3036 PUTBACK;
3037 }
3038 3432
3039 if (!(coro->flags & CF_RUNNING)) 3433 if (current != coro)
3040 { 3434 {
3435 PUTBACK;
3436 slf_frame = slf_save;
3041 save_perl (aTHX_ coro); 3437 save_perl (aTHX_ coro);
3042 load_perl (aTHX_ &temp); 3438 load_perl (aTHX_ current);
3043 SPAGAIN; 3439 SPAGAIN;
3044 } 3440 }
3045 } 3441 }
3046} 3442}
3047 3443
… …
3051 ALIAS: 3447 ALIAS:
3052 is_ready = CF_READY 3448 is_ready = CF_READY
3053 is_running = CF_RUNNING 3449 is_running = CF_RUNNING
3054 is_new = CF_NEW 3450 is_new = CF_NEW
3055 is_destroyed = CF_DESTROYED 3451 is_destroyed = CF_DESTROYED
3452 is_suspended = CF_SUSPENDED
3056 CODE: 3453 CODE:
3057 RETVAL = boolSV (coro->flags & ix); 3454 RETVAL = boolSV (coro->flags & ix);
3058 OUTPUT: 3455 OUTPUT:
3059 RETVAL 3456 RETVAL
3060 3457
3061void 3458void
3062throw (Coro::State self, SV *throw = &PL_sv_undef) 3459throw (Coro::State self, SV *exception = &PL_sv_undef)
3063 PROTOTYPE: $;$ 3460 PROTOTYPE: $;$
3064 CODE: 3461 CODE:
3065{ 3462{
3066 struct coro *current = SvSTATE_current; 3463 struct coro *current = SvSTATE_current;
3067 SV **throwp = self == current ? &CORO_THROW : &self->except; 3464 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3068 SvREFCNT_dec (*throwp); 3465 SvREFCNT_dec (*exceptionp);
3069 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3466 SvGETMAGIC (exception);
3467 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3070} 3468}
3071 3469
3072void 3470void
3073api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3471api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3074 PROTOTYPE: $;$ 3472 PROTOTYPE: $;$
… …
3125 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; 3523 SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv;
3126 3524
3127 SV *tmp = *src; *src = *dst; *dst = tmp; 3525 SV *tmp = *src; *src = *dst; *dst = tmp;
3128 } 3526 }
3129 3527
3528void
3529cancel (Coro::State self)
3530 CODE:
3531 coro_state_destroy (aTHX_ self);
3532
3533SV *
3534enable_times (int enabled = enable_times)
3535 CODE:
3536{
3537 RETVAL = boolSV (enable_times);
3538
3539 if (enabled != enable_times)
3540 {
3541 enable_times = enabled;
3542
3543 coro_times_update ();
3544 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3545 }
3546}
3547 OUTPUT:
3548 RETVAL
3549
3550void
3551times (Coro::State self)
3552 PPCODE:
3553{
3554 struct coro *current = SvSTATE (coro_current);
3555
3556 if (expect_false (current == self))
3557 {
3558 coro_times_update ();
3559 coro_times_add (SvSTATE (coro_current));
3560 }
3561
3562 EXTEND (SP, 2);
3563 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3564 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3565
3566 if (expect_false (current == self))
3567 coro_times_sub (SvSTATE (coro_current));
3568}
3569
3570void
3571swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3572 CODE:
3573{
3574 struct coro *current = SvSTATE_current;
3575
3576 if (current == coro)
3577 SWAP_SVS (current);
3578
3579 if (!coro->swap_sv)
3580 coro->swap_sv = newAV ();
3581
3582 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3583 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3584
3585 if (current == coro)
3586 SWAP_SVS (current);
3587}
3588
3130 3589
3131MODULE = Coro::State PACKAGE = Coro 3590MODULE = Coro::State PACKAGE = Coro
3132 3591
3133BOOT: 3592BOOT:
3134{ 3593{
3135 int i;
3136
3137 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3594 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3138 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3595 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3139 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3596 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3140 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3141 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3597 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3142 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3598 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3143 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3599 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3144 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3600 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3145 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3601 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3146 3602
3147 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3603 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3148 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3604 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3149 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3605 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3150 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3606 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3151 3607
3152 coro_stash = gv_stashpv ("Coro", TRUE); 3608 coro_stash = gv_stashpv ("Coro", TRUE);
3153 3609
3154 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3610 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3155 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3611 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3156 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3612 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3157 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3613 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3158 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3614 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3159 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3615 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3160
3161 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3162 coro_ready[i] = newAV ();
3163 3616
3164 { 3617 {
3165 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3618 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3166 3619
3167 coroapi.schedule = api_schedule; 3620 coroapi.schedule = api_schedule;
… …
3177 sv_setiv (sv, (IV)&coroapi); 3630 sv_setiv (sv, (IV)&coroapi);
3178 SvREADONLY_on (sv); 3631 SvREADONLY_on (sv);
3179 } 3632 }
3180} 3633}
3181 3634
3635SV *
3636async (...)
3637 PROTOTYPE: &@
3638 CODE:
3639 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3640 api_ready (aTHX_ RETVAL);
3641 OUTPUT:
3642 RETVAL
3643
3644void
3645_destroy (Coro::State coro)
3646 CODE:
3647 /* used by the manager thread */
3648 coro_state_destroy (aTHX_ coro);
3649 coro_call_on_destroy (aTHX_ coro);
3650
3182void 3651void
3183terminate (...) 3652terminate (...)
3184 CODE: 3653 CODE:
3185 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3654 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3186 3655
3187void 3656void
3657cancel (...)
3658 CODE:
3659 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3660
3661int
3662safe_cancel (Coro::State self, ...)
3663 C_ARGS: aTHX_ self, &ST (1), items - 1
3664
3665void
3188schedule (...) 3666schedule (...)
3189 CODE: 3667 CODE:
3190 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3668 CORO_EXECUTE_SLF_XS (slf_init_schedule);
3191 3669
3192void 3670void
… …
3206 3684
3207void 3685void
3208cede_notself (...) 3686cede_notself (...)
3209 CODE: 3687 CODE:
3210 CORO_EXECUTE_SLF_XS (slf_init_cede_notself); 3688 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
3211
3212void
3213_cancel (Coro::State self)
3214 CODE:
3215 coro_state_destroy (aTHX_ self);
3216 coro_call_on_destroy (aTHX_ self);
3217 3689
3218void 3690void
3219_set_current (SV *current) 3691_set_current (SV *current)
3220 PROTOTYPE: $ 3692 PROTOTYPE: $
3221 CODE: 3693 CODE:
… …
3225void 3697void
3226_set_readyhook (SV *hook) 3698_set_readyhook (SV *hook)
3227 PROTOTYPE: $ 3699 PROTOTYPE: $
3228 CODE: 3700 CODE:
3229 SvREFCNT_dec (coro_readyhook); 3701 SvREFCNT_dec (coro_readyhook);
3702 SvGETMAGIC (hook);
3703 if (SvOK (hook))
3704 {
3230 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3705 coro_readyhook = newSVsv (hook);
3706 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3707 }
3708 else
3709 {
3710 coro_readyhook = 0;
3711 CORO_READYHOOK = 0;
3712 }
3231 3713
3232int 3714int
3233prio (Coro::State coro, int newprio = 0) 3715prio (Coro::State coro, int newprio = 0)
3234 PROTOTYPE: $;$ 3716 PROTOTYPE: $;$
3235 ALIAS: 3717 ALIAS:
… …
3241 if (items > 1) 3723 if (items > 1)
3242 { 3724 {
3243 if (ix) 3725 if (ix)
3244 newprio = coro->prio - newprio; 3726 newprio = coro->prio - newprio;
3245 3727
3246 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3728 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3247 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3729 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3248 3730
3249 coro->prio = newprio; 3731 coro->prio = newprio;
3250 } 3732 }
3251} 3733}
3252 OUTPUT: 3734 OUTPUT:
… …
3267 RETVAL = coro_nready; 3749 RETVAL = coro_nready;
3268 OUTPUT: 3750 OUTPUT:
3269 RETVAL 3751 RETVAL
3270 3752
3271void 3753void
3754suspend (Coro::State self)
3755 PROTOTYPE: $
3756 CODE:
3757 self->flags |= CF_SUSPENDED;
3758
3759void
3760resume (Coro::State self)
3761 PROTOTYPE: $
3762 CODE:
3763 self->flags &= ~CF_SUSPENDED;
3764
3765void
3272_pool_handler (...) 3766_pool_handler (...)
3273 CODE: 3767 CODE:
3274 CORO_EXECUTE_SLF_XS (slf_init_pool_handler); 3768 CORO_EXECUTE_SLF_XS (slf_init_pool_handler);
3275 3769
3276void 3770void
… …
3287 for (i = 1; i < items; ++i) 3781 for (i = 1; i < items; ++i)
3288 av_push (av, SvREFCNT_inc_NN (ST (i))); 3782 av_push (av, SvREFCNT_inc_NN (ST (i)));
3289 3783
3290 if ((SV *)hv == &PL_sv_undef) 3784 if ((SV *)hv == &PL_sv_undef)
3291 { 3785 {
3292 PUSHMARK (SP); 3786 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3293 EXTEND (SP, 2);
3294 PUSHs (sv_Coro);
3295 PUSHs ((SV *)cv_pool_handler);
3296 PUTBACK;
3297 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3298 SPAGAIN;
3299
3300 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3787 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3788 SvREFCNT_dec (sv);
3301 } 3789 }
3302 3790
3303 { 3791 {
3304 struct coro *coro = SvSTATE_hv (hv); 3792 struct coro *coro = SvSTATE_hv (hv);
3305 3793
… …
3329rouse_wait (...) 3817rouse_wait (...)
3330 PROTOTYPE: ;$ 3818 PROTOTYPE: ;$
3331 PPCODE: 3819 PPCODE:
3332 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); 3820 CORO_EXECUTE_SLF_XS (slf_init_rouse_wait);
3333 3821
3822void
3823on_enter (SV *block)
3824 ALIAS:
3825 on_leave = 1
3826 PROTOTYPE: &
3827 CODE:
3828{
3829 struct coro *coro = SvSTATE_current;
3830 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3831
3832 block = s_get_cv_croak (block);
3833
3834 if (!*avp)
3835 *avp = newAV ();
3836
3837 av_push (*avp, SvREFCNT_inc (block));
3838
3839 if (!ix)
3840 on_enterleave_call (aTHX_ block);
3841
3842 LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3843 SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro);
3844 ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */
3845}
3846
3334 3847
3335MODULE = Coro::State PACKAGE = PerlIO::cede 3848MODULE = Coro::State PACKAGE = PerlIO::cede
3336 3849
3337BOOT: 3850BOOT:
3338 PerlIO_define_layer (aTHX_ &PerlIO_cede); 3851 PerlIO_define_layer (aTHX_ &PerlIO_cede);
… …
3341MODULE = Coro::State PACKAGE = Coro::Semaphore 3854MODULE = Coro::State PACKAGE = Coro::Semaphore
3342 3855
3343SV * 3856SV *
3344new (SV *klass, SV *count = 0) 3857new (SV *klass, SV *count = 0)
3345 CODE: 3858 CODE:
3859{
3860 int semcnt = 1;
3861
3862 if (count)
3863 {
3864 SvGETMAGIC (count);
3865
3866 if (SvOK (count))
3867 semcnt = SvIV (count);
3868 }
3869
3346 RETVAL = sv_bless ( 3870 RETVAL = sv_bless (
3347 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3871 coro_waitarray_new (aTHX_ semcnt),
3348 GvSTASH (CvGV (cv)) 3872 GvSTASH (CvGV (cv))
3349 ); 3873 );
3874}
3350 OUTPUT: 3875 OUTPUT:
3351 RETVAL 3876 RETVAL
3352 3877
3353# helper for Coro::Channel 3878# helper for Coro::Channel and others
3354SV * 3879SV *
3355_alloc (int count) 3880_alloc (int count)
3356 CODE: 3881 CODE:
3357 RETVAL = coro_waitarray_new (aTHX_ count); 3882 RETVAL = coro_waitarray_new (aTHX_ count);
3358 OUTPUT: 3883 OUTPUT:
… …
3416 for (i = 1; i <= wcount; ++i) 3941 for (i = 1; i <= wcount; ++i)
3417 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); 3942 PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i])));
3418 } 3943 }
3419} 3944}
3420 3945
3946MODULE = Coro::State PACKAGE = Coro::SemaphoreSet
3947
3948void
3949_may_delete (SV *sem, int count, int extra_refs)
3950 PPCODE:
3951{
3952 AV *av = (AV *)SvRV (sem);
3953
3954 if (SvREFCNT ((SV *)av) == 1 + extra_refs
3955 && AvFILLp (av) == 0 /* no waiters, just count */
3956 && SvIV (AvARRAY (av)[0]) == count)
3957 XSRETURN_YES;
3958
3959 XSRETURN_NO;
3960}
3961
3421MODULE = Coro::State PACKAGE = Coro::Signal 3962MODULE = Coro::State PACKAGE = Coro::Signal
3422 3963
3423SV * 3964SV *
3424new (SV *klass) 3965new (SV *klass)
3425 CODE: 3966 CODE:
… …
3496 4037
3497void 4038void
3498_register (char *target, char *proto, SV *req) 4039_register (char *target, char *proto, SV *req)
3499 CODE: 4040 CODE:
3500{ 4041{
3501 CV *req_cv = coro_sv_2cv (aTHX_ req); 4042 SV *req_cv = s_get_cv_croak (req);
3502 /* newXSproto doesn't return the CV on 5.8 */ 4043 /* newXSproto doesn't return the CV on 5.8 */
3503 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 4044 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3504 sv_setpv ((SV *)slf_cv, proto); 4045 sv_setpv ((SV *)slf_cv, proto);
3505 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 4046 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3506} 4047}
3507 4048
4049MODULE = Coro::State PACKAGE = Coro::Select
4050
4051void
4052patch_pp_sselect ()
4053 CODE:
4054 if (!coro_old_pp_sselect)
4055 {
4056 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
4057 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
4058 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
4059 }
4060
4061void
4062unpatch_pp_sselect ()
4063 CODE:
4064 if (coro_old_pp_sselect)
4065 {
4066 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
4067 coro_old_pp_sselect = 0;
4068 }
4069

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