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Comparing Coro/Coro/State.xs (file contents):
Revision 1.361 by root, Wed Jul 1 07:26:40 2009 UTC vs.
Revision 1.379 by root, Tue Jul 27 14:50:17 2010 UTC

1#define NDEBUG 1
2
1#include "libcoro/coro.c" 3#include "libcoro/coro.c"
2 4
3#define PERL_NO_GET_CONTEXT 5#define PERL_NO_GET_CONTEXT
4#define PERL_EXT 6#define PERL_EXT
5 7
6#include "EXTERN.h" 8#include "EXTERN.h"
7#include "perl.h" 9#include "perl.h"
8#include "XSUB.h" 10#include "XSUB.h"
9#include "perliol.h" 11#include "perliol.h"
10 12
11#include "patchlevel.h" 13#include "schmorp.h"
12 14
13#include <stdio.h> 15#include <stdio.h>
14#include <errno.h> 16#include <errno.h>
15#include <assert.h> 17#include <assert.h>
18
19#ifndef SVs_PADSTALE
20# define SVs_PADSTALE 0
21#endif
16 22
17#ifdef WIN32 23#ifdef WIN32
18# undef setjmp 24# undef setjmp
19# undef longjmp 25# undef longjmp
20# undef _exit 26# undef _exit
… …
51#endif 57#endif
52 58
53/* the maximum number of idle cctx that will be pooled */ 59/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 60static int cctx_max_idle = 4;
55 61
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 62#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 63# undef CORO_STACKGUARD
117#endif 64#endif
118 65
119#ifndef CORO_STACKGUARD 66#ifndef CORO_STACKGUARD
… …
201static SV *sv_pool_size; 148static SV *sv_pool_size;
202static SV *sv_async_pool_idle; /* description string */ 149static SV *sv_async_pool_idle; /* description string */
203static AV *av_async_pool; /* idle pool */ 150static AV *av_async_pool; /* idle pool */
204static SV *sv_Coro; /* class string */ 151static SV *sv_Coro; /* class string */
205static CV *cv_pool_handler; 152static CV *cv_pool_handler;
206static CV *cv_coro_state_new;
207 153
208/* Coro::AnyEvent */ 154/* Coro::AnyEvent */
209static SV *sv_activity; 155static SV *sv_activity;
210 156
211/* enable processtime/realtime profiling */ 157/* enable processtime/realtime profiling */
… …
310 256
311 /* on_enter/on_leave */ 257 /* on_enter/on_leave */
312 AV *on_enter; 258 AV *on_enter;
313 AV *on_leave; 259 AV *on_leave;
314 260
261 /* swap_sv */
262 AV *swap_sv;
263
315 /* times */ 264 /* times */
316 coro_ts t_cpu, t_real; 265 coro_ts t_cpu, t_real;
317 266
318 /* linked list */ 267 /* linked list */
319 struct coro *next, *prev; 268 struct coro *next, *prev;
… …
342static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 291static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
343static CV *cv_coro_run, *cv_coro_terminate; 292static CV *cv_coro_run, *cv_coro_terminate;
344static struct coro *coro_first; 293static struct coro *coro_first;
345#define coro_nready coroapi.nready 294#define coro_nready coroapi.nready
346 295
296/** Coro::Select ************************************************************/
297
298static OP *(*coro_old_pp_sselect) (pTHX);
299static SV *coro_select_select;
300
301/* horrible hack, but if it works... */
302static OP *
303coro_pp_sselect (pTHX)
304{
305 dSP;
306 PUSHMARK (SP - 4); /* fake argument list */
307 XPUSHs (coro_select_select);
308 PUTBACK;
309
310 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
311 PL_op->op_flags |= OPf_STACKED;
312 PL_op->op_private = 0;
313 return PL_ppaddr [OP_ENTERSUB](aTHX);
314}
315
347/** lowlevel stuff **********************************************************/ 316/** lowlevel stuff **********************************************************/
348 317
349static SV * 318static SV *
350coro_get_sv (pTHX_ const char *name, int create) 319coro_get_sv (pTHX_ const char *name, int create)
351{ 320{
… …
372#if PERL_VERSION_ATLEAST (5,10,0) 341#if PERL_VERSION_ATLEAST (5,10,0)
373 /* silence stupid and wrong 5.10 warning that I am unable to switch off */ 342 /* silence stupid and wrong 5.10 warning that I am unable to switch off */
374 get_hv (name, create); 343 get_hv (name, create);
375#endif 344#endif
376 return get_hv (name, create); 345 return get_hv (name, create);
377}
378
379/* may croak */
380INLINE CV *
381coro_sv_2cv (pTHX_ SV *sv)
382{
383 HV *st;
384 GV *gvp;
385 CV *cv = sv_2cv (sv, &st, &gvp, 0);
386
387 if (!cv)
388 croak ("code reference expected");
389
390 return cv;
391} 346}
392 347
393INLINE void 348INLINE void
394coro_times_update () 349coro_times_update ()
395{ 350{
… …
405 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; 360 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
406#else 361#else
407 dTHX; 362 dTHX;
408 UV tv[2]; 363 UV tv[2];
409 364
410 u2time (aTHX_ &tv); 365 u2time (aTHX_ tv);
411 time_real [0] = tv [0]; 366 time_real [0] = tv [0];
412 time_real [1] = tv [1] * 1000; 367 time_real [1] = tv [1] * 1000;
413#endif 368#endif
414} 369}
415 370
… …
545 AV *padlist; 500 AV *padlist;
546 AV *av = (AV *)mg->mg_obj; 501 AV *av = (AV *)mg->mg_obj;
547 502
548 /* perl manages to free our internal AV and _then_ call us */ 503 /* perl manages to free our internal AV and _then_ call us */
549 if (IN_DESTRUCT) 504 if (IN_DESTRUCT)
550 return; 505 return 0;
551 506
552 /* casting is fun. */ 507 /* casting is fun. */
553 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 508 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
554 free_padlist (aTHX_ padlist); 509 free_padlist (aTHX_ padlist);
555 510
… …
604 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 559 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
605} 560}
606 561
607/** load & save, init *******************************************************/ 562/** load & save, init *******************************************************/
608 563
564/* swap sv heads, at least logically */
565static void
566swap_svs (pTHX_ Coro__State c)
567{
568 int i;
569
570 for (i = 0; i <= AvFILLp (c->swap_sv); )
571 {
572 SV *a = AvARRAY (c->swap_sv)[i++];
573 SV *b = AvARRAY (c->swap_sv)[i++];
574
575 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
576 SV tmp;
577
578 /* swap sv_any */
579 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
580
581 /* swap sv_flags */
582 SvFLAGS (&tmp) = SvFLAGS (a);
583 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
584 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
585
586#if PERL_VERSION_ATLEAST (5,10,0)
587 /* perl 5.10 complicates this _quite_ a bit, but it also is
588 * is much faster, so no quarrels here. alternatively, we could
589 * sv_upgrade to avoid this.
590 */
591 {
592 /* swap sv_u */
593 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
594
595 /* if SvANY points to the head, we need to adjust the pointers,
596 * as the pointer for a still points to b, and maybe vice versa.
597 */
598 #define svany_in_head(type) \
599 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
600
601 if (svany_in_head (SvTYPE (a)))
602 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
603
604 if (svany_in_head (SvTYPE (b)))
605 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
606 }
607#endif
608 }
609}
610
611#define SWAP_SVS(coro) \
612 if (expect_false ((coro)->swap_sv)) \
613 swap_svs (aTHX_ (coro))
614
609static void 615static void
610on_enterleave_call (pTHX_ SV *cb); 616on_enterleave_call (pTHX_ SV *cb);
611 617
612static void 618static void
613load_perl (pTHX_ Coro__State c) 619load_perl (pTHX_ Coro__State c)
… …
659 int i; 665 int i;
660 666
661 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 667 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
662 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 668 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
663 } 669 }
670
671 SWAP_SVS (c);
664} 672}
665 673
666static void 674static void
667save_perl (pTHX_ Coro__State c) 675save_perl (pTHX_ Coro__State c)
668{ 676{
677 SWAP_SVS (c);
678
669 if (expect_false (c->on_leave)) 679 if (expect_false (c->on_leave))
670 { 680 {
671 int i; 681 int i;
672 682
673 for (i = AvFILLp (c->on_leave); i >= 0; --i) 683 for (i = AvFILLp (c->on_leave); i >= 0; --i)
… …
736 /* we manually unroll here, as usually 2 slots is enough */ 746 /* we manually unroll here, as usually 2 slots is enough */
737 if (SLOT_COUNT >= 1) CXINC; 747 if (SLOT_COUNT >= 1) CXINC;
738 if (SLOT_COUNT >= 2) CXINC; 748 if (SLOT_COUNT >= 2) CXINC;
739 if (SLOT_COUNT >= 3) CXINC; 749 if (SLOT_COUNT >= 3) CXINC;
740 { 750 {
741 int i; 751 unsigned int i;
742 for (i = 3; i < SLOT_COUNT; ++i) 752 for (i = 3; i < SLOT_COUNT; ++i)
743 CXINC; 753 CXINC;
744 } 754 }
745 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 755 cxstack_ix -= SLOT_COUNT; /* undo allocation */
746 756
… …
980slf_check_repeat (pTHX_ struct CoroSLF *frame) 990slf_check_repeat (pTHX_ struct CoroSLF *frame)
981{ 991{
982 return 1; 992 return 1;
983} 993}
984 994
985static UNOP coro_setup_op; 995static UNOP init_perl_op;
986 996
987static void NOINLINE /* noinline to keep it out of the transfer fast path */ 997static void NOINLINE /* noinline to keep it out of the transfer fast path */
988coro_setup (pTHX_ struct coro *coro) 998init_perl (pTHX_ struct coro *coro)
989{ 999{
990 /* 1000 /*
991 * emulate part of the perl startup here. 1001 * emulate part of the perl startup here.
992 */ 1002 */
993 coro_init_stacks (aTHX); 1003 coro_init_stacks (aTHX);
… …
1042 */ 1052 */
1043 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1053 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1044 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1054 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1045 1055
1046 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1056 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1047 coro_setup_op.op_next = PL_op; 1057 init_perl_op.op_next = PL_op;
1048 coro_setup_op.op_type = OP_ENTERSUB; 1058 init_perl_op.op_type = OP_ENTERSUB;
1049 coro_setup_op.op_ppaddr = pp_slf; 1059 init_perl_op.op_ppaddr = pp_slf;
1050 /* no flags etc. required, as an init function won't be called */ 1060 /* no flags etc. required, as an init function won't be called */
1051 1061
1052 PL_op = (OP *)&coro_setup_op; 1062 PL_op = (OP *)&init_perl_op;
1053 1063
1054 /* copy throw, in case it was set before coro_setup */ 1064 /* copy throw, in case it was set before init_perl */
1055 CORO_THROW = coro->except; 1065 CORO_THROW = coro->except;
1066
1067 SWAP_SVS (coro);
1056 1068
1057 if (expect_false (enable_times)) 1069 if (expect_false (enable_times))
1058 { 1070 {
1059 coro_times_update (); 1071 coro_times_update ();
1060 coro_times_sub (coro); 1072 coro_times_sub (coro);
… …
1081 dounwind (-1); 1093 dounwind (-1);
1082 } 1094 }
1083} 1095}
1084 1096
1085static void 1097static void
1086coro_destruct_perl (pTHX_ struct coro *coro) 1098destroy_perl (pTHX_ struct coro *coro)
1087{ 1099{
1088 SV *svf [9]; 1100 SV *svf [9];
1089 1101
1090 { 1102 {
1091 struct coro *current = SvSTATE_current; 1103 struct coro *current = SvSTATE_current;
… …
1095 save_perl (aTHX_ current); 1107 save_perl (aTHX_ current);
1096 load_perl (aTHX_ coro); 1108 load_perl (aTHX_ coro);
1097 1109
1098 coro_unwind_stacks (aTHX); 1110 coro_unwind_stacks (aTHX);
1099 coro_destruct_stacks (aTHX); 1111 coro_destruct_stacks (aTHX);
1112
1113 /* restore swapped sv's */
1114 SWAP_SVS (coro);
1100 1115
1101 // now save some sv's to be free'd later 1116 // now save some sv's to be free'd later
1102 svf [0] = GvSV (PL_defgv); 1117 svf [0] = GvSV (PL_defgv);
1103 svf [1] = (SV *)GvAV (PL_defgv); 1118 svf [1] = (SV *)GvAV (PL_defgv);
1104 svf [2] = GvSV (PL_errgv); 1119 svf [2] = GvSV (PL_errgv);
… …
1112 1127
1113 load_perl (aTHX_ current); 1128 load_perl (aTHX_ current);
1114 } 1129 }
1115 1130
1116 { 1131 {
1117 int i; 1132 unsigned int i;
1118 1133
1119 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) 1134 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1120 SvREFCNT_dec (svf [i]); 1135 SvREFCNT_dec (svf [i]);
1121 1136
1122 SvREFCNT_dec (coro->saved_deffh); 1137 SvREFCNT_dec (coro->saved_deffh);
… …
1328 /* somebody or something will hit me for both perl_run and PL_restartop */ 1343 /* somebody or something will hit me for both perl_run and PL_restartop */
1329 PL_restartop = PL_op; 1344 PL_restartop = PL_op;
1330 perl_run (PL_curinterp); 1345 perl_run (PL_curinterp);
1331 /* 1346 /*
1332 * Unfortunately, there is no way to get at the return values of the 1347 * Unfortunately, there is no way to get at the return values of the
1333 * coro body here, as perl_run destroys these 1348 * coro body here, as perl_run destroys these. Likewise, we cannot catch
1349 * runtime errors here, as this is just a random interpreter, not a thread.
1334 */ 1350 */
1335 1351
1336 /* 1352 /*
1337 * If perl-run returns we assume exit() was being called or the coro 1353 * If perl-run returns we assume exit() was being called or the coro
1338 * fell off the end, which seems to be the only valid (non-bug) 1354 * fell off the end, which seems to be the only valid (non-bug)
… …
1545 if (expect_false (next->flags & CF_NEW)) 1561 if (expect_false (next->flags & CF_NEW))
1546 { 1562 {
1547 /* need to start coroutine */ 1563 /* need to start coroutine */
1548 next->flags &= ~CF_NEW; 1564 next->flags &= ~CF_NEW;
1549 /* setup coroutine call */ 1565 /* setup coroutine call */
1550 coro_setup (aTHX_ next); 1566 init_perl (aTHX_ next);
1551 } 1567 }
1552 else 1568 else
1553 load_perl (aTHX_ next); 1569 load_perl (aTHX_ next);
1554 1570
1555 /* possibly untie and reuse the cctx */ 1571 /* possibly untie and reuse the cctx */
… …
1618 1634
1619 if (coro->mainstack 1635 if (coro->mainstack
1620 && coro->mainstack != main_mainstack 1636 && coro->mainstack != main_mainstack
1621 && coro->slot 1637 && coro->slot
1622 && !PL_dirty) 1638 && !PL_dirty)
1623 coro_destruct_perl (aTHX_ coro); 1639 destroy_perl (aTHX_ coro);
1640
1641 if (coro->next) coro->next->prev = coro->prev;
1642 if (coro->prev) coro->prev->next = coro->next;
1643 if (coro == coro_first) coro_first = coro->next;
1624 1644
1625 cctx_destroy (coro->cctx); 1645 cctx_destroy (coro->cctx);
1626 SvREFCNT_dec (coro->startcv); 1646 SvREFCNT_dec (coro->startcv);
1627 SvREFCNT_dec (coro->args); 1647 SvREFCNT_dec (coro->args);
1648 SvREFCNT_dec (coro->swap_sv);
1628 SvREFCNT_dec (CORO_THROW); 1649 SvREFCNT_dec (CORO_THROW);
1629
1630 if (coro->next) coro->next->prev = coro->prev;
1631 if (coro->prev) coro->prev->next = coro->next;
1632 if (coro == coro_first) coro_first = coro->next;
1633 1650
1634 return 1; 1651 return 1;
1635} 1652}
1636 1653
1637static int 1654static int
… …
1687 1704
1688 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1705 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1689 TRANSFER (ta, 1); 1706 TRANSFER (ta, 1);
1690} 1707}
1691 1708
1692/*****************************************************************************/
1693/* gensub: simple closure generation utility */
1694
1695#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1696
1697/* create a closure from XS, returns a code reference */
1698/* the arg can be accessed via GENSUB_ARG from the callback */
1699/* the callback must use dXSARGS/XSRETURN */
1700static SV *
1701gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1702{
1703 CV *cv = (CV *)newSV (0);
1704
1705 sv_upgrade ((SV *)cv, SVt_PVCV);
1706
1707 CvANON_on (cv);
1708 CvISXSUB_on (cv);
1709 CvXSUB (cv) = xsub;
1710 GENSUB_ARG = arg;
1711
1712 return newRV_noinc ((SV *)cv);
1713}
1714
1715/** Coro ********************************************************************/ 1709/** Coro ********************************************************************/
1716 1710
1717INLINE void 1711INLINE void
1718coro_enq (pTHX_ struct coro *coro) 1712coro_enq (pTHX_ struct coro *coro)
1719{ 1713{
… …
1744 } 1738 }
1745 1739
1746 return 0; 1740 return 0;
1747} 1741}
1748 1742
1743static void
1744invoke_sv_ready_hook_helper (void)
1745{
1746 dTHX;
1747 dSP;
1748
1749 ENTER;
1750 SAVETMPS;
1751
1752 PUSHMARK (SP);
1753 PUTBACK;
1754 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1755
1756 FREETMPS;
1757 LEAVE;
1758}
1759
1749static int 1760static int
1750api_ready (pTHX_ SV *coro_sv) 1761api_ready (pTHX_ SV *coro_sv)
1751{ 1762{
1752 struct coro *coro;
1753 SV *sv_hook;
1754 void (*xs_hook)(void);
1755
1756 coro = SvSTATE (coro_sv); 1763 struct coro *coro = SvSTATE (coro_sv);
1757 1764
1758 if (coro->flags & CF_READY) 1765 if (coro->flags & CF_READY)
1759 return 0; 1766 return 0;
1760 1767
1761 coro->flags |= CF_READY; 1768 coro->flags |= CF_READY;
1762 1769
1763 sv_hook = coro_nready ? 0 : coro_readyhook;
1764 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1765
1766 coro_enq (aTHX_ coro); 1770 coro_enq (aTHX_ coro);
1767 ++coro_nready;
1768 1771
1769 if (sv_hook) 1772 if (!coro_nready++)
1770 { 1773 if (coroapi.readyhook)
1771 dSP; 1774 coroapi.readyhook ();
1772
1773 ENTER;
1774 SAVETMPS;
1775
1776 PUSHMARK (SP);
1777 PUTBACK;
1778 call_sv (sv_hook, G_VOID | G_DISCARD);
1779
1780 FREETMPS;
1781 LEAVE;
1782 }
1783
1784 if (xs_hook)
1785 xs_hook ();
1786 1775
1787 return 1; 1776 return 1;
1788} 1777}
1789 1778
1790static int 1779static int
… …
1835 { 1824 {
1836 /* nothing to schedule: call the idle handler */ 1825 /* nothing to schedule: call the idle handler */
1837 if (SvROK (sv_idle) 1826 if (SvROK (sv_idle)
1838 && SvOBJECT (SvRV (sv_idle))) 1827 && SvOBJECT (SvRV (sv_idle)))
1839 { 1828 {
1829 if (SvRV (sv_idle) == SvRV (coro_current))
1830 croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught");
1831
1840 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ 1832 ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */
1841 api_ready (aTHX_ SvRV (sv_idle)); 1833 api_ready (aTHX_ SvRV (sv_idle));
1842 --coro_nready; 1834 --coro_nready;
1843 } 1835 }
1844 else 1836 else
1845 { 1837 {
1838 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1846 dSP; 1839 dSP;
1847 1840
1848 ENTER; 1841 ENTER;
1849 SAVETMPS; 1842 SAVETMPS;
1850 1843
… …
1996{ 1989{
1997 int i; 1990 int i;
1998 HV *hv = (HV *)SvRV (coro_current); 1991 HV *hv = (HV *)SvRV (coro_current);
1999 AV *av = newAV (); 1992 AV *av = newAV ();
2000 1993
1994 /* items are actually not so common, so optimise for this case */
1995 if (items)
1996 {
2001 av_extend (av, items - 1); 1997 av_extend (av, items - 1);
1998
2002 for (i = 0; i < items; ++i) 1999 for (i = 0; i < items; ++i)
2003 av_push (av, SvREFCNT_inc_NN (arg [i])); 2000 av_push (av, SvREFCNT_inc_NN (arg [i]));
2001 }
2004 2002
2005 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); 2003 hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2006 2004
2007 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ 2005 av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */
2008 api_ready (aTHX_ sv_manager); 2006 api_ready (aTHX_ sv_manager);
… …
2098 2096
2099static void 2097static void
2100coro_rouse_callback (pTHX_ CV *cv) 2098coro_rouse_callback (pTHX_ CV *cv)
2101{ 2099{
2102 dXSARGS; 2100 dXSARGS;
2103 SV *data = (SV *)GENSUB_ARG; 2101 SV *data = (SV *)S_GENSUB_ARG;
2104 2102
2105 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2103 if (SvTYPE (SvRV (data)) != SVt_PVAV)
2106 { 2104 {
2107 /* first call, set args */ 2105 /* first call, set args */
2108 SV *coro = SvRV (data); 2106 SV *coro = SvRV (data);
… …
2174 || SvTYPE (SvRV (cb)) != SVt_PVCV 2172 || SvTYPE (SvRV (cb)) != SVt_PVCV
2175 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2173 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2176 croak ("Coro::rouse_wait called with illegal callback argument,"); 2174 croak ("Coro::rouse_wait called with illegal callback argument,");
2177 2175
2178 { 2176 {
2179 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2177 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2180 SV *data = (SV *)GENSUB_ARG; 2178 SV *data = (SV *)S_GENSUB_ARG;
2181 2179
2182 frame->data = (void *)data; 2180 frame->data = (void *)data;
2183 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2181 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2184 frame->check = slf_check_rouse_wait; 2182 frame->check = slf_check_rouse_wait;
2185 } 2183 }
… …
2189coro_new_rouse_cb (pTHX) 2187coro_new_rouse_cb (pTHX)
2190{ 2188{
2191 HV *hv = (HV *)SvRV (coro_current); 2189 HV *hv = (HV *)SvRV (coro_current);
2192 struct coro *coro = SvSTATE_hv (hv); 2190 struct coro *coro = SvSTATE_hv (hv);
2193 SV *data = newRV_inc ((SV *)hv); 2191 SV *data = newRV_inc ((SV *)hv);
2194 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2192 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2195 2193
2196 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2194 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2197 SvREFCNT_dec (data); /* magicext increases the refcount */ 2195 SvREFCNT_dec (data); /* magicext increases the refcount */
2198 2196
2199 SvREFCNT_dec (coro->rouse_cb); 2197 SvREFCNT_dec (coro->rouse_cb);
… …
2424 if (PL_op->op_flags & OPf_STACKED) 2422 if (PL_op->op_flags & OPf_STACKED)
2425 { 2423 {
2426 if (items > slf_arga) 2424 if (items > slf_arga)
2427 { 2425 {
2428 slf_arga = items; 2426 slf_arga = items;
2429 free (slf_argv); 2427 Safefree (slf_argv);
2430 slf_argv = malloc (slf_arga * sizeof (SV *)); 2428 New (0, slf_argv, slf_arga, SV *);
2431 } 2429 }
2432 2430
2433 slf_argc = items; 2431 slf_argc = items;
2434 2432
2435 for (i = 0; i < items; ++i) 2433 for (i = 0; i < items; ++i)
… …
2722{ 2720{
2723 if (items >= 2) 2721 if (items >= 2)
2724 { 2722 {
2725 /* callback form */ 2723 /* callback form */
2726 AV *av = (AV *)SvRV (arg [0]); 2724 AV *av = (AV *)SvRV (arg [0]);
2727 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2725 SV *cb_cv = s_get_cv_croak (arg [1]);
2728 2726
2729 av_push (av, SvREFCNT_inc_NN (cb_cv)); 2727 av_push (av, SvREFCNT_inc_NN (cb_cv));
2730 2728
2731 if (SvIVX (AvARRAY (av)[0]) > 0) 2729 if (SvIVX (AvARRAY (av)[0]) > 0)
2732 coro_semaphore_adjust (aTHX_ av, 0); 2730 coro_semaphore_adjust (aTHX_ av, 0);
… …
2792{ 2790{
2793 AV *av = (AV *)SvRV (arg [0]); 2791 AV *av = (AV *)SvRV (arg [0]);
2794 2792
2795 if (items >= 2) 2793 if (items >= 2)
2796 { 2794 {
2797 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2795 SV *cb_cv = s_get_cv_croak (arg [1]);
2798 av_push (av, SvREFCNT_inc_NN (cb_cv)); 2796 av_push (av, SvREFCNT_inc_NN (cb_cv));
2799 2797
2800 if (SvIVX (AvARRAY (av)[0])) 2798 if (SvIVX (AvARRAY (av)[0]))
2801 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 2799 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
2802 2800
… …
2837 2835
2838static void 2836static void
2839coro_aio_callback (pTHX_ CV *cv) 2837coro_aio_callback (pTHX_ CV *cv)
2840{ 2838{
2841 dXSARGS; 2839 dXSARGS;
2842 AV *state = (AV *)GENSUB_ARG; 2840 AV *state = (AV *)S_GENSUB_ARG;
2843 SV *coro = av_pop (state); 2841 SV *coro = av_pop (state);
2844 SV *data_sv = newSV (sizeof (struct io_state)); 2842 SV *data_sv = newSV (sizeof (struct io_state));
2845 2843
2846 av_extend (state, items - 1); 2844 av_extend (state, items - 1);
2847 2845
… …
2961 2959
2962 for (i = 0; i < items; ++i) 2960 for (i = 0; i < items; ++i)
2963 PUSHs (arg [i]); 2961 PUSHs (arg [i]);
2964 2962
2965 /* now push the callback closure */ 2963 /* now push the callback closure */
2966 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 2964 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2967 2965
2968 /* now call the AIO function - we assume our request is uncancelable */ 2966 /* now call the AIO function - we assume our request is uncancelable */
2969 PUTBACK; 2967 PUTBACK;
2970 call_sv ((SV *)req, G_VOID | G_DISCARD); 2968 call_sv ((SV *)req, G_VOID | G_DISCARD);
2971 } 2969 }
… …
2989/*****************************************************************************/ 2987/*****************************************************************************/
2990 2988
2991#if CORO_CLONE 2989#if CORO_CLONE
2992# include "clone.c" 2990# include "clone.c"
2993#endif 2991#endif
2992
2993/*****************************************************************************/
2994
2995static SV *
2996coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro)
2997{
2998 SV *coro_sv;
2999 struct coro *coro;
3000 MAGIC *mg;
3001 HV *hv;
3002 SV *cb;
3003 int i;
3004
3005 if (argc > 0)
3006 {
3007 cb = s_get_cv_croak (argv [0]);
3008
3009 if (!is_coro)
3010 {
3011 if (CvISXSUB (cb))
3012 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3013
3014 if (!CvROOT (cb))
3015 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3016 }
3017 }
3018
3019 Newz (0, coro, 1, struct coro);
3020 coro->args = newAV ();
3021 coro->flags = CF_NEW;
3022
3023 if (coro_first) coro_first->prev = coro;
3024 coro->next = coro_first;
3025 coro_first = coro;
3026
3027 coro->hv = hv = newHV ();
3028 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3029 mg->mg_flags |= MGf_DUP;
3030 coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash);
3031
3032 if (argc > 0)
3033 {
3034 av_extend (coro->args, argc + is_coro - 1);
3035
3036 if (is_coro)
3037 {
3038 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3039 cb = (SV *)cv_coro_run;
3040 }
3041
3042 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3043
3044 for (i = 1; i < argc; i++)
3045 av_push (coro->args, newSVsv (argv [i]));
3046 }
3047
3048 return coro_sv;
3049}
2994 3050
2995MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ 3051MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_
2996 3052
2997PROTOTYPES: DISABLE 3053PROTOTYPES: DISABLE
2998 3054
… …
3060 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 3116 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3061 3117
3062 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 3118 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3063 3119
3064 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); 3120 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3065 u2time = INT2PTR (double (*)(), SvIV (*svp)); 3121 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3066 } 3122 }
3067 3123
3068 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3124 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3069} 3125}
3070 3126
3071SV * 3127SV *
3072new (char *klass, ...) 3128new (SV *klass, ...)
3073 ALIAS: 3129 ALIAS:
3074 Coro::new = 1 3130 Coro::new = 1
3075 CODE: 3131 CODE:
3076{ 3132 RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix);
3077 struct coro *coro; 3133 OUTPUT:
3078 MAGIC *mg;
3079 HV *hv;
3080 CV *cb;
3081 int i;
3082
3083 if (items > 1)
3084 {
3085 cb = coro_sv_2cv (aTHX_ ST (1));
3086
3087 if (!ix)
3088 {
3089 if (CvISXSUB (cb))
3090 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
3091
3092 if (!CvROOT (cb))
3093 croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught");
3094 }
3095 }
3096
3097 Newz (0, coro, 1, struct coro);
3098 coro->args = newAV ();
3099 coro->flags = CF_NEW;
3100
3101 if (coro_first) coro_first->prev = coro;
3102 coro->next = coro_first;
3103 coro_first = coro;
3104
3105 coro->hv = hv = newHV ();
3106 mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0);
3107 mg->mg_flags |= MGf_DUP;
3108 RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1));
3109
3110 if (items > 1)
3111 {
3112 av_extend (coro->args, items - 1 + ix - 1);
3113
3114 if (ix)
3115 {
3116 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
3117 cb = cv_coro_run;
3118 }
3119
3120 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
3121
3122 for (i = 2; i < items; i++)
3123 av_push (coro->args, newSVsv (ST (i)));
3124 }
3125}
3126 OUTPUT:
3127 RETVAL 3134 RETVAL
3128 3135
3129void 3136void
3130transfer (...) 3137transfer (...)
3131 PROTOTYPE: $$ 3138 PROTOTYPE: $$
… …
3268 RETVAL = boolSV (coro->flags & ix); 3275 RETVAL = boolSV (coro->flags & ix);
3269 OUTPUT: 3276 OUTPUT:
3270 RETVAL 3277 RETVAL
3271 3278
3272void 3279void
3273throw (Coro::State self, SV *throw = &PL_sv_undef) 3280throw (Coro::State self, SV *exception = &PL_sv_undef)
3274 PROTOTYPE: $;$ 3281 PROTOTYPE: $;$
3275 CODE: 3282 CODE:
3276{ 3283{
3277 struct coro *current = SvSTATE_current; 3284 struct coro *current = SvSTATE_current;
3278 SV **throwp = self == current ? &CORO_THROW : &self->except; 3285 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3279 SvREFCNT_dec (*throwp); 3286 SvREFCNT_dec (*exceptionp);
3280 SvGETMAGIC (throw); 3287 SvGETMAGIC (exception);
3281 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3288 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3282} 3289}
3283 3290
3284void 3291void
3285api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3292api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3286 PROTOTYPE: $;$ 3293 PROTOTYPE: $;$
… …
3381 3388
3382 if (expect_false (current == self)) 3389 if (expect_false (current == self))
3383 coro_times_sub (SvSTATE (coro_current)); 3390 coro_times_sub (SvSTATE (coro_current));
3384} 3391}
3385 3392
3393void
3394swap_sv (Coro::State coro, SV *sv, SV *swapsv)
3395 CODE:
3396{
3397 struct coro *current = SvSTATE_current;
3398
3399 if (current == coro)
3400 SWAP_SVS (current);
3401
3402 if (!coro->swap_sv)
3403 coro->swap_sv = newAV ();
3404
3405 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv )));
3406 av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv)));
3407
3408 if (current == coro)
3409 SWAP_SVS (current);
3410}
3411
3412
3386MODULE = Coro::State PACKAGE = Coro 3413MODULE = Coro::State PACKAGE = Coro
3387 3414
3388BOOT: 3415BOOT:
3389{ 3416{
3390 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3417 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
… …
3398 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3425 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
3399 3426
3400 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); 3427 sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle);
3401 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); 3428 sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro);
3402 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3429 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3403 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3430 CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */
3404 3431
3405 coro_stash = gv_stashpv ("Coro", TRUE); 3432 coro_stash = gv_stashpv ("Coro", TRUE);
3406 3433
3407 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); 3434 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3408 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); 3435 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3409 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); 3436 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
… …
3427 sv_setiv (sv, (IV)&coroapi); 3454 sv_setiv (sv, (IV)&coroapi);
3428 SvREADONLY_on (sv); 3455 SvREADONLY_on (sv);
3429 } 3456 }
3430} 3457}
3431 3458
3459SV *
3460async (...)
3461 PROTOTYPE: &@
3462 CODE:
3463 RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1);
3464 api_ready (aTHX_ RETVAL);
3465 OUTPUT:
3466 RETVAL
3467
3432void 3468void
3433terminate (...) 3469terminate (...)
3434 CODE: 3470 CODE:
3435 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3471 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3436 3472
… …
3470_set_readyhook (SV *hook) 3506_set_readyhook (SV *hook)
3471 PROTOTYPE: $ 3507 PROTOTYPE: $
3472 CODE: 3508 CODE:
3473 SvREFCNT_dec (coro_readyhook); 3509 SvREFCNT_dec (coro_readyhook);
3474 SvGETMAGIC (hook); 3510 SvGETMAGIC (hook);
3511 if (SvOK (hook))
3512 {
3475 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3513 coro_readyhook = newSVsv (hook);
3514 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3515 }
3516 else
3517 {
3518 coro_readyhook = 0;
3519 CORO_READYHOOK = 0;
3520 }
3476 3521
3477int 3522int
3478prio (Coro::State coro, int newprio = 0) 3523prio (Coro::State coro, int newprio = 0)
3479 PROTOTYPE: $;$ 3524 PROTOTYPE: $;$
3480 ALIAS: 3525 ALIAS:
… …
3544 for (i = 1; i < items; ++i) 3589 for (i = 1; i < items; ++i)
3545 av_push (av, SvREFCNT_inc_NN (ST (i))); 3590 av_push (av, SvREFCNT_inc_NN (ST (i)));
3546 3591
3547 if ((SV *)hv == &PL_sv_undef) 3592 if ((SV *)hv == &PL_sv_undef)
3548 { 3593 {
3549 PUSHMARK (SP); 3594 SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1);
3550 EXTEND (SP, 2);
3551 PUSHs (sv_Coro);
3552 PUSHs ((SV *)cv_pool_handler);
3553 PUTBACK;
3554 call_sv ((SV *)cv_coro_state_new, G_SCALAR);
3555 SPAGAIN;
3556
3557 hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); 3595 hv = (HV *)SvREFCNT_inc_NN (SvRV (sv));
3596 SvREFCNT_dec (sv);
3558 } 3597 }
3559 3598
3560 { 3599 {
3561 struct coro *coro = SvSTATE_hv (hv); 3600 struct coro *coro = SvSTATE_hv (hv);
3562 3601
… …
3596 CODE: 3635 CODE:
3597{ 3636{
3598 struct coro *coro = SvSTATE_current; 3637 struct coro *coro = SvSTATE_current;
3599 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 3638 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3600 3639
3601 block = (SV *)coro_sv_2cv (aTHX_ block); 3640 block = s_get_cv_croak (block);
3602 3641
3603 if (!*avp) 3642 if (!*avp)
3604 *avp = newAV (); 3643 *avp = newAV ();
3605 3644
3606 av_push (*avp, SvREFCNT_inc (block)); 3645 av_push (*avp, SvREFCNT_inc (block));
… …
3806 3845
3807void 3846void
3808_register (char *target, char *proto, SV *req) 3847_register (char *target, char *proto, SV *req)
3809 CODE: 3848 CODE:
3810{ 3849{
3811 CV *req_cv = coro_sv_2cv (aTHX_ req); 3850 SV *req_cv = s_get_cv_croak (req);
3812 /* newXSproto doesn't return the CV on 5.8 */ 3851 /* newXSproto doesn't return the CV on 5.8 */
3813 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3852 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3814 sv_setpv ((SV *)slf_cv, proto); 3853 sv_setpv ((SV *)slf_cv, proto);
3815 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3854 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3816} 3855}
3817 3856
3857MODULE = Coro::State PACKAGE = Coro::Select
3858
3859void
3860patch_pp_sselect ()
3861 CODE:
3862 if (!coro_old_pp_sselect)
3863 {
3864 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3865 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3866 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3867 }
3868
3869void
3870unpatch_pp_sselect ()
3871 CODE:
3872 if (coro_old_pp_sselect)
3873 {
3874 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3875 coro_old_pp_sselect = 0;
3876 }
3877
3878

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