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Comparing Coro/Coro/State.xs (file contents):
Revision 1.346 by root, Tue Jun 9 18:56:45 2009 UTC vs.
Revision 1.366 by root, Tue Jul 21 03:39:58 2009 UTC

6#include "EXTERN.h" 6#include "EXTERN.h"
7#include "perl.h" 7#include "perl.h"
8#include "XSUB.h" 8#include "XSUB.h"
9#include "perliol.h" 9#include "perliol.h"
10 10
11#include "patchlevel.h" 11#include "schmorp.h"
12 12
13#include <stdio.h> 13#include <stdio.h>
14#include <errno.h> 14#include <errno.h>
15#include <assert.h> 15#include <assert.h>
16 16
51#endif 51#endif
52 52
53/* the maximum number of idle cctx that will be pooled */ 53/* the maximum number of idle cctx that will be pooled */
54static int cctx_max_idle = 4; 54static int cctx_max_idle = 4;
55 55
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 56#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64
116# undef CORO_STACKGUARD 57# undef CORO_STACKGUARD
117#endif 58#endif
118 59
119#ifndef CORO_STACKGUARD 60#ifndef CORO_STACKGUARD
137 78
138#define IN_DESTRUCT PL_dirty 79#define IN_DESTRUCT PL_dirty
139 80
140#if __GNUC__ >= 3 81#if __GNUC__ >= 3
141# define attribute(x) __attribute__(x) 82# define attribute(x) __attribute__(x)
142# define expect(expr,value) __builtin_expect ((expr),(value)) 83# define expect(expr,value) __builtin_expect ((expr), (value))
143# define INLINE static inline 84# define INLINE static inline
144#else 85#else
145# define attribute(x) 86# define attribute(x)
146# define expect(expr,value) (expr) 87# define expect(expr,value) (expr)
147# define INLINE static 88# define INLINE static
159# if CORO_PTHREAD 100# if CORO_PTHREAD
160static void *coro_thx; 101static void *coro_thx;
161# endif 102# endif
162#endif 103#endif
163 104
105#ifdef __linux
106# include <time.h> /* for timespec */
107# include <syscall.h> /* for SYS_* */
108# ifdef SYS_clock_gettime
109# define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
110# define CORO_CLOCK_MONOTONIC 1
111# define CORO_CLOCK_THREAD_CPUTIME_ID 3
112# endif
113#endif
114
164static double (*nvtime)(); /* so why doesn't it take void? */ 115static double (*nvtime)(); /* so why doesn't it take void? */
116static void (*u2time)(pTHX_ UV ret[2]);
165 117
166/* we hijack an hopefully unused CV flag for our purposes */ 118/* we hijack an hopefully unused CV flag for our purposes */
167#define CVf_SLF 0x4000 119#define CVf_SLF 0x4000
168static OP *pp_slf (pTHX); 120static OP *pp_slf (pTHX);
169 121
194static CV *cv_pool_handler; 146static CV *cv_pool_handler;
195static CV *cv_coro_state_new; 147static CV *cv_coro_state_new;
196 148
197/* Coro::AnyEvent */ 149/* Coro::AnyEvent */
198static SV *sv_activity; 150static SV *sv_activity;
151
152/* enable processtime/realtime profiling */
153static char enable_times;
154typedef U32 coro_ts[2];
155static coro_ts time_real, time_cpu;
156static char times_valid;
199 157
200static struct coro_cctx *cctx_first; 158static struct coro_cctx *cctx_first;
201static int cctx_count, cctx_idle; 159static int cctx_count, cctx_idle;
202 160
203enum { 161enum {
261/* this is a structure representing a perl-level coroutine */ 219/* this is a structure representing a perl-level coroutine */
262struct coro { 220struct coro {
263 /* the C coroutine allocated to this perl coroutine, if any */ 221 /* the C coroutine allocated to this perl coroutine, if any */
264 coro_cctx *cctx; 222 coro_cctx *cctx;
265 223
224 /* ready queue */
225 struct coro *next_ready;
226
266 /* state data */ 227 /* state data */
267 struct CoroSLF slf_frame; /* saved slf frame */ 228 struct CoroSLF slf_frame; /* saved slf frame */
268 AV *mainstack; 229 AV *mainstack;
269 perl_slots *slot; /* basically the saved sp */ 230 perl_slots *slot; /* basically the saved sp */
270 231
290 251
291 /* on_enter/on_leave */ 252 /* on_enter/on_leave */
292 AV *on_enter; 253 AV *on_enter;
293 AV *on_leave; 254 AV *on_leave;
294 255
256 /* times */
257 coro_ts t_cpu, t_real;
258
295 /* linked list */ 259 /* linked list */
296 struct coro *next, *prev; 260 struct coro *next, *prev;
297}; 261};
298 262
299typedef struct coro *Coro__State; 263typedef struct coro *Coro__State;
304/* the mainr easonw e don't support windows process emulation */ 268/* the mainr easonw e don't support windows process emulation */
305static struct CoroSLF slf_frame; /* the current slf frame */ 269static struct CoroSLF slf_frame; /* the current slf frame */
306 270
307/** Coro ********************************************************************/ 271/** Coro ********************************************************************/
308 272
309#define PRIO_MAX 3 273#define CORO_PRIO_MAX 3
310#define PRIO_HIGH 1 274#define CORO_PRIO_HIGH 1
311#define PRIO_NORMAL 0 275#define CORO_PRIO_NORMAL 0
312#define PRIO_LOW -1 276#define CORO_PRIO_LOW -1
313#define PRIO_IDLE -3 277#define CORO_PRIO_IDLE -3
314#define PRIO_MIN -4 278#define CORO_PRIO_MIN -4
315 279
316/* for Coro.pm */ 280/* for Coro.pm */
317static SV *coro_current; 281static SV *coro_current;
318static SV *coro_readyhook; 282static SV *coro_readyhook;
319static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; 283static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
320static CV *cv_coro_run, *cv_coro_terminate; 284static CV *cv_coro_run, *cv_coro_terminate;
321static struct coro *coro_first; 285static struct coro *coro_first;
322#define coro_nready coroapi.nready 286#define coro_nready coroapi.nready
287
288/** Coro::Select ************************************************************/
289
290static OP *(*coro_old_pp_sselect) (pTHX);
291static SV *coro_select_select;
292
293/* horrible hack, but if it works... */
294static OP *
295coro_pp_sselect (aTHX)
296{
297 dSP;
298 PUSHMARK (SP - 4); /* fake argument list */
299 XPUSHs (coro_select_select);
300 PUTBACK;
301
302 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
303 PL_op->op_flags |= OPf_STACKED;
304 PL_op->op_private = 0;
305 return PL_ppaddr [OP_ENTERSUB](aTHX);
306}
323 307
324/** lowlevel stuff **********************************************************/ 308/** lowlevel stuff **********************************************************/
325 309
326static SV * 310static SV *
327coro_get_sv (pTHX_ const char *name, int create) 311coro_get_sv (pTHX_ const char *name, int create)
351 get_hv (name, create); 335 get_hv (name, create);
352#endif 336#endif
353 return get_hv (name, create); 337 return get_hv (name, create);
354} 338}
355 339
356/* may croak */ 340INLINE void
357INLINE CV * 341coro_times_update ()
358coro_sv_2cv (pTHX_ SV *sv)
359{ 342{
360 HV *st; 343#ifdef coro_clock_gettime
361 GV *gvp; 344 struct timespec ts;
362 CV *cv = sv_2cv (sv, &st, &gvp, 0);
363 345
364 if (!cv) 346 ts.tv_sec = ts.tv_nsec = 0;
365 croak ("code reference expected"); 347 coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts);
348 time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec;
366 349
367 return cv; 350 ts.tv_sec = ts.tv_nsec = 0;
351 coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts);
352 time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec;
353#else
354 dTHX;
355 UV tv[2];
356
357 u2time (aTHX_ tv);
358 time_real [0] = tv [0];
359 time_real [1] = tv [1] * 1000;
360#endif
361}
362
363INLINE void
364coro_times_add (struct coro *c)
365{
366 c->t_real [1] += time_real [1];
367 if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; }
368 c->t_real [0] += time_real [0];
369
370 c->t_cpu [1] += time_cpu [1];
371 if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; }
372 c->t_cpu [0] += time_cpu [0];
373}
374
375INLINE void
376coro_times_sub (struct coro *c)
377{
378 if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; }
379 c->t_real [1] -= time_real [1];
380 c->t_real [0] -= time_real [0];
381
382 if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; }
383 c->t_cpu [1] -= time_cpu [1];
384 c->t_cpu [0] -= time_cpu [0];
368} 385}
369 386
370/*****************************************************************************/ 387/*****************************************************************************/
371/* magic glue */ 388/* magic glue */
372 389
472static int 489static int
473coro_cv_free (pTHX_ SV *sv, MAGIC *mg) 490coro_cv_free (pTHX_ SV *sv, MAGIC *mg)
474{ 491{
475 AV *padlist; 492 AV *padlist;
476 AV *av = (AV *)mg->mg_obj; 493 AV *av = (AV *)mg->mg_obj;
494
495 /* perl manages to free our internal AV and _then_ call us */
496 if (IN_DESTRUCT)
497 return 0;
477 498
478 /* casting is fun. */ 499 /* casting is fun. */
479 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) 500 while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av)))
480 free_padlist (aTHX_ padlist); 501 free_padlist (aTHX_ padlist);
481 502
570 } 591 }
571 592
572 slf_frame = c->slf_frame; 593 slf_frame = c->slf_frame;
573 CORO_THROW = c->except; 594 CORO_THROW = c->except;
574 595
596 if (expect_false (enable_times))
597 {
598 if (expect_false (!times_valid))
599 coro_times_update ();
600
601 coro_times_sub (c);
602 }
603
575 if (expect_false (c->on_enter)) 604 if (expect_false (c->on_enter))
576 { 605 {
577 int i; 606 int i;
578 607
579 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 608 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
588 { 617 {
589 int i; 618 int i;
590 619
591 for (i = AvFILLp (c->on_leave); i >= 0; --i) 620 for (i = AvFILLp (c->on_leave); i >= 0; --i)
592 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); 621 on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]);
622 }
623
624 times_valid = 0;
625
626 if (expect_false (enable_times))
627 {
628 coro_times_update (); times_valid = 1;
629 coro_times_add (c);
593 } 630 }
594 631
595 c->except = CORO_THROW; 632 c->except = CORO_THROW;
596 c->slf_frame = slf_frame; 633 c->slf_frame = slf_frame;
597 634
612 { 649 {
613 while (expect_true (cxix >= 0)) 650 while (expect_true (cxix >= 0))
614 { 651 {
615 PERL_CONTEXT *cx = &ccstk[cxix--]; 652 PERL_CONTEXT *cx = &ccstk[cxix--];
616 653
617 if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) 654 if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT))
618 { 655 {
619 CV *cv = cx->blk_sub.cv; 656 CV *cv = cx->blk_sub.cv;
620 657
621 if (expect_true (CvDEPTH (cv))) 658 if (expect_true (CvDEPTH (cv)))
622 { 659 {
646 /* we manually unroll here, as usually 2 slots is enough */ 683 /* we manually unroll here, as usually 2 slots is enough */
647 if (SLOT_COUNT >= 1) CXINC; 684 if (SLOT_COUNT >= 1) CXINC;
648 if (SLOT_COUNT >= 2) CXINC; 685 if (SLOT_COUNT >= 2) CXINC;
649 if (SLOT_COUNT >= 3) CXINC; 686 if (SLOT_COUNT >= 3) CXINC;
650 { 687 {
651 int i; 688 unsigned int i;
652 for (i = 3; i < SLOT_COUNT; ++i) 689 for (i = 3; i < SLOT_COUNT; ++i)
653 CXINC; 690 CXINC;
654 } 691 }
655 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 692 cxstack_ix -= SLOT_COUNT; /* undo allocation */
656 693
961 998
962 PL_op = (OP *)&coro_setup_op; 999 PL_op = (OP *)&coro_setup_op;
963 1000
964 /* copy throw, in case it was set before coro_setup */ 1001 /* copy throw, in case it was set before coro_setup */
965 CORO_THROW = coro->except; 1002 CORO_THROW = coro->except;
1003
1004 if (expect_false (enable_times))
1005 {
1006 coro_times_update ();
1007 coro_times_sub (coro);
1008 }
966} 1009}
967 1010
968static void 1011static void
969coro_unwind_stacks (pTHX) 1012coro_unwind_stacks (pTHX)
970{ 1013{
987} 1030}
988 1031
989static void 1032static void
990coro_destruct_perl (pTHX_ struct coro *coro) 1033coro_destruct_perl (pTHX_ struct coro *coro)
991{ 1034{
1035 SV *svf [9];
1036
1037 {
1038 struct coro *current = SvSTATE_current;
1039
1040 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1041
1042 save_perl (aTHX_ current);
1043 load_perl (aTHX_ coro);
1044
992 coro_unwind_stacks (aTHX); 1045 coro_unwind_stacks (aTHX);
1046 coro_destruct_stacks (aTHX);
993 1047
994 SvREFCNT_dec (GvSV (PL_defgv)); 1048 // now save some sv's to be free'd later
995 SvREFCNT_dec (GvAV (PL_defgv)); 1049 svf [0] = GvSV (PL_defgv);
996 SvREFCNT_dec (GvSV (PL_errgv)); 1050 svf [1] = (SV *)GvAV (PL_defgv);
997 SvREFCNT_dec (PL_defoutgv); 1051 svf [2] = GvSV (PL_errgv);
998 SvREFCNT_dec (PL_rs); 1052 svf [3] = (SV *)PL_defoutgv;
999 SvREFCNT_dec (GvSV (irsgv)); 1053 svf [4] = PL_rs;
1000 SvREFCNT_dec (GvHV (PL_hintgv)); 1054 svf [5] = GvSV (irsgv);
1055 svf [6] = (SV *)GvHV (PL_hintgv);
1056 svf [7] = PL_diehook;
1057 svf [8] = PL_warnhook;
1058 assert (9 == sizeof (svf) / sizeof (*svf));
1001 1059
1002 SvREFCNT_dec (PL_diehook); 1060 load_perl (aTHX_ current);
1003 SvREFCNT_dec (PL_warnhook);
1004 1061 }
1062
1063 {
1064 unsigned int i;
1065
1066 for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i)
1067 SvREFCNT_dec (svf [i]);
1068
1005 SvREFCNT_dec (coro->saved_deffh); 1069 SvREFCNT_dec (coro->saved_deffh);
1006 SvREFCNT_dec (coro->rouse_cb); 1070 SvREFCNT_dec (coro->rouse_cb);
1007 SvREFCNT_dec (coro->invoke_cb); 1071 SvREFCNT_dec (coro->invoke_cb);
1008 SvREFCNT_dec (coro->invoke_av); 1072 SvREFCNT_dec (coro->invoke_av);
1009 1073 }
1010 coro_destruct_stacks (aTHX);
1011} 1074}
1012 1075
1013INLINE void 1076INLINE void
1014free_coro_mortal (pTHX) 1077free_coro_mortal (pTHX)
1015{ 1078{
1502 1565
1503 if (coro->mainstack 1566 if (coro->mainstack
1504 && coro->mainstack != main_mainstack 1567 && coro->mainstack != main_mainstack
1505 && coro->slot 1568 && coro->slot
1506 && !PL_dirty) 1569 && !PL_dirty)
1507 {
1508 struct coro *current = SvSTATE_current;
1509
1510 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1511
1512 save_perl (aTHX_ current);
1513 load_perl (aTHX_ coro);
1514
1515 coro_destruct_perl (aTHX_ coro); 1570 coro_destruct_perl (aTHX_ coro);
1516
1517 load_perl (aTHX_ current);
1518
1519 coro->slot = 0;
1520 }
1521 1571
1522 cctx_destroy (coro->cctx); 1572 cctx_destroy (coro->cctx);
1523 SvREFCNT_dec (coro->startcv); 1573 SvREFCNT_dec (coro->startcv);
1524 SvREFCNT_dec (coro->args); 1574 SvREFCNT_dec (coro->args);
1525 SvREFCNT_dec (CORO_THROW); 1575 SvREFCNT_dec (CORO_THROW);
1584 1634
1585 prepare_transfer (aTHX_ &ta, prev_sv, next_sv); 1635 prepare_transfer (aTHX_ &ta, prev_sv, next_sv);
1586 TRANSFER (ta, 1); 1636 TRANSFER (ta, 1);
1587} 1637}
1588 1638
1589/*****************************************************************************/
1590/* gensub: simple closure generation utility */
1591
1592#define GENSUB_ARG CvXSUBANY (cv).any_ptr
1593
1594/* create a closure from XS, returns a code reference */
1595/* the arg can be accessed via GENSUB_ARG from the callback */
1596/* the callback must use dXSARGS/XSRETURN */
1597static SV *
1598gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg)
1599{
1600 CV *cv = (CV *)newSV (0);
1601
1602 sv_upgrade ((SV *)cv, SVt_PVCV);
1603
1604 CvANON_on (cv);
1605 CvISXSUB_on (cv);
1606 CvXSUB (cv) = xsub;
1607 GENSUB_ARG = arg;
1608
1609 return newRV_noinc ((SV *)cv);
1610}
1611
1612/** Coro ********************************************************************/ 1639/** Coro ********************************************************************/
1613 1640
1614INLINE void 1641INLINE void
1615coro_enq (pTHX_ struct coro *coro) 1642coro_enq (pTHX_ struct coro *coro)
1616{ 1643{
1617 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); 1644 struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN];
1618}
1619 1645
1620INLINE SV * 1646 SvREFCNT_inc_NN (coro->hv);
1647
1648 coro->next_ready = 0;
1649 *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro;
1650 ready [1] = coro;
1651}
1652
1653INLINE struct coro *
1621coro_deq (pTHX) 1654coro_deq (pTHX)
1622{ 1655{
1623 int prio; 1656 int prio;
1624 1657
1625 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1658 for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; )
1626 if (AvFILLp (coro_ready [prio]) >= 0) 1659 {
1627 return av_shift (coro_ready [prio]); 1660 struct coro **ready = coro_ready [prio];
1661
1662 if (ready [0])
1663 {
1664 struct coro *coro = ready [0];
1665 ready [0] = coro->next_ready;
1666 return coro;
1667 }
1668 }
1628 1669
1629 return 0; 1670 return 0;
1671}
1672
1673static void
1674invoke_sv_ready_hook_helper (void)
1675{
1676 dTHX;
1677 dSP;
1678
1679 ENTER;
1680 SAVETMPS;
1681
1682 PUSHMARK (SP);
1683 PUTBACK;
1684 call_sv (coro_readyhook, G_VOID | G_DISCARD);
1685
1686 FREETMPS;
1687 LEAVE;
1630} 1688}
1631 1689
1632static int 1690static int
1633api_ready (pTHX_ SV *coro_sv) 1691api_ready (pTHX_ SV *coro_sv)
1634{ 1692{
1635 struct coro *coro;
1636 SV *sv_hook;
1637 void (*xs_hook)(void);
1638
1639 coro = SvSTATE (coro_sv); 1693 struct coro *coro = SvSTATE (coro_sv);
1640 1694
1641 if (coro->flags & CF_READY) 1695 if (coro->flags & CF_READY)
1642 return 0; 1696 return 0;
1643 1697
1644 coro->flags |= CF_READY; 1698 coro->flags |= CF_READY;
1645 1699
1646 sv_hook = coro_nready ? 0 : coro_readyhook;
1647 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1648
1649 coro_enq (aTHX_ coro); 1700 coro_enq (aTHX_ coro);
1650 ++coro_nready;
1651 1701
1652 if (sv_hook) 1702 if (!coro_nready++)
1653 { 1703 if (coroapi.readyhook)
1654 dSP; 1704 coroapi.readyhook ();
1655
1656 ENTER;
1657 SAVETMPS;
1658
1659 PUSHMARK (SP);
1660 PUTBACK;
1661 call_sv (sv_hook, G_VOID | G_DISCARD);
1662
1663 FREETMPS;
1664 LEAVE;
1665 }
1666
1667 if (xs_hook)
1668 xs_hook ();
1669 1705
1670 return 1; 1706 return 1;
1671} 1707}
1672 1708
1673static int 1709static int
1696static void 1732static void
1697prepare_schedule (pTHX_ struct coro_transfer_args *ta) 1733prepare_schedule (pTHX_ struct coro_transfer_args *ta)
1698{ 1734{
1699 for (;;) 1735 for (;;)
1700 { 1736 {
1701 SV *next_sv = coro_deq (aTHX); 1737 struct coro *next = coro_deq (aTHX);
1702 1738
1703 if (expect_true (next_sv)) 1739 if (expect_true (next))
1704 { 1740 {
1705 struct coro *next = SvSTATE_hv (next_sv);
1706
1707 /* cannot transfer to destroyed coros, skip and look for next */ 1741 /* cannot transfer to destroyed coros, skip and look for next */
1708 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1742 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED)))
1709 SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ 1743 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1710 else 1744 else
1711 { 1745 {
1712 next->flags &= ~CF_READY; 1746 next->flags &= ~CF_READY;
1713 --coro_nready; 1747 --coro_nready;
1714 1748
1983 2017
1984static void 2018static void
1985coro_rouse_callback (pTHX_ CV *cv) 2019coro_rouse_callback (pTHX_ CV *cv)
1986{ 2020{
1987 dXSARGS; 2021 dXSARGS;
1988 SV *data = (SV *)GENSUB_ARG; 2022 SV *data = (SV *)S_GENSUB_ARG;
1989 2023
1990 if (SvTYPE (SvRV (data)) != SVt_PVAV) 2024 if (SvTYPE (SvRV (data)) != SVt_PVAV)
1991 { 2025 {
1992 /* first call, set args */ 2026 /* first call, set args */
1993 SV *coro = SvRV (data); 2027 SV *coro = SvRV (data);
2059 || SvTYPE (SvRV (cb)) != SVt_PVCV 2093 || SvTYPE (SvRV (cb)) != SVt_PVCV
2060 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) 2094 || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback)
2061 croak ("Coro::rouse_wait called with illegal callback argument,"); 2095 croak ("Coro::rouse_wait called with illegal callback argument,");
2062 2096
2063 { 2097 {
2064 CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ 2098 CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */
2065 SV *data = (SV *)GENSUB_ARG; 2099 SV *data = (SV *)S_GENSUB_ARG;
2066 2100
2067 frame->data = (void *)data; 2101 frame->data = (void *)data;
2068 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; 2102 frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule;
2069 frame->check = slf_check_rouse_wait; 2103 frame->check = slf_check_rouse_wait;
2070 } 2104 }
2074coro_new_rouse_cb (pTHX) 2108coro_new_rouse_cb (pTHX)
2075{ 2109{
2076 HV *hv = (HV *)SvRV (coro_current); 2110 HV *hv = (HV *)SvRV (coro_current);
2077 struct coro *coro = SvSTATE_hv (hv); 2111 struct coro *coro = SvSTATE_hv (hv);
2078 SV *data = newRV_inc ((SV *)hv); 2112 SV *data = newRV_inc ((SV *)hv);
2079 SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); 2113 SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data);
2080 2114
2081 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); 2115 sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0);
2082 SvREFCNT_dec (data); /* magicext increases the refcount */ 2116 SvREFCNT_dec (data); /* magicext increases the refcount */
2083 2117
2084 SvREFCNT_dec (coro->rouse_cb); 2118 SvREFCNT_dec (coro->rouse_cb);
2455/* Coro::Semaphore & Coro::Signal */ 2489/* Coro::Semaphore & Coro::Signal */
2456 2490
2457static SV * 2491static SV *
2458coro_waitarray_new (pTHX_ int count) 2492coro_waitarray_new (pTHX_ int count)
2459{ 2493{
2460 /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ 2494 /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */
2461 AV *av = newAV (); 2495 AV *av = newAV ();
2462 SV **ary; 2496 SV **ary;
2463 2497
2464 /* unfortunately, building manually saves memory */ 2498 /* unfortunately, building manually saves memory */
2465 Newx (ary, 2, SV *); 2499 Newx (ary, 2, SV *);
2607{ 2641{
2608 if (items >= 2) 2642 if (items >= 2)
2609 { 2643 {
2610 /* callback form */ 2644 /* callback form */
2611 AV *av = (AV *)SvRV (arg [0]); 2645 AV *av = (AV *)SvRV (arg [0]);
2612 CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); 2646 SV *cb_cv = s_get_cv_croak (arg [1]);
2613 2647
2614 av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); 2648 av_push (av, SvREFCNT_inc_NN (cb_cv));
2615 2649
2616 if (SvIVX (AvARRAY (av)[0]) > 0) 2650 if (SvIVX (AvARRAY (av)[0]) > 0)
2617 coro_semaphore_adjust (aTHX_ av, 0); 2651 coro_semaphore_adjust (aTHX_ av, 0);
2618 2652
2619 frame->prepare = prepare_nop; 2653 frame->prepare = prepare_nop;
2643 AvARRAY (av)[0] = AvARRAY (av)[1]; 2677 AvARRAY (av)[0] = AvARRAY (av)[1];
2644 AvARRAY (av)[1] = cb; 2678 AvARRAY (av)[1] = cb;
2645 2679
2646 cb = av_shift (av); 2680 cb = av_shift (av);
2647 2681
2682 if (SvTYPE (cb) == SVt_PVCV)
2683 {
2684 dSP;
2685 PUSHMARK (SP);
2686 XPUSHs (sv_2mortal (newRV_inc ((SV *)av)));
2687 PUTBACK;
2688 call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR);
2689 }
2690 else
2691 {
2648 api_ready (aTHX_ cb); 2692 api_ready (aTHX_ cb);
2649 sv_setiv (cb, 0); /* signal waiter */ 2693 sv_setiv (cb, 0); /* signal waiter */
2694 }
2695
2650 SvREFCNT_dec (cb); 2696 SvREFCNT_dec (cb);
2651 2697
2652 --count; 2698 --count;
2653 } 2699 }
2654} 2700}
2663static void 2709static void
2664slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2710slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2665{ 2711{
2666 AV *av = (AV *)SvRV (arg [0]); 2712 AV *av = (AV *)SvRV (arg [0]);
2667 2713
2714 if (items >= 2)
2715 {
2716 SV *cb_cv = s_get_cv_croak (arg [1]);
2717 av_push (av, SvREFCNT_inc_NN (cb_cv));
2718
2668 if (SvIVX (AvARRAY (av)[0])) 2719 if (SvIVX (AvARRAY (av)[0]))
2720 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */
2721
2722 frame->prepare = prepare_nop;
2723 frame->check = slf_check_nop;
2724 }
2725 else if (SvIVX (AvARRAY (av)[0]))
2669 { 2726 {
2670 SvIVX (AvARRAY (av)[0]) = 0; 2727 SvIVX (AvARRAY (av)[0]) = 0;
2671 frame->prepare = prepare_nop; 2728 frame->prepare = prepare_nop;
2672 frame->check = slf_check_nop; 2729 frame->check = slf_check_nop;
2673 } 2730 }
2674 else 2731 else
2675 { 2732 {
2676 SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ 2733 SV *waiter = newSVsv (coro_current); /* owned by signal av */
2677 2734
2678 av_push (av, waiter); 2735 av_push (av, waiter);
2679 2736
2680 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ 2737 frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */
2681 frame->prepare = prepare_schedule; 2738 frame->prepare = prepare_schedule;
2699 2756
2700static void 2757static void
2701coro_aio_callback (pTHX_ CV *cv) 2758coro_aio_callback (pTHX_ CV *cv)
2702{ 2759{
2703 dXSARGS; 2760 dXSARGS;
2704 AV *state = (AV *)GENSUB_ARG; 2761 AV *state = (AV *)S_GENSUB_ARG;
2705 SV *coro = av_pop (state); 2762 SV *coro = av_pop (state);
2706 SV *data_sv = newSV (sizeof (struct io_state)); 2763 SV *data_sv = newSV (sizeof (struct io_state));
2707 2764
2708 av_extend (state, items - 1); 2765 av_extend (state, items - 1);
2709 2766
2823 2880
2824 for (i = 0; i < items; ++i) 2881 for (i = 0; i < items; ++i)
2825 PUSHs (arg [i]); 2882 PUSHs (arg [i]);
2826 2883
2827 /* now push the callback closure */ 2884 /* now push the callback closure */
2828 PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); 2885 PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state))));
2829 2886
2830 /* now call the AIO function - we assume our request is uncancelable */ 2887 /* now call the AIO function - we assume our request is uncancelable */
2831 PUTBACK; 2888 PUTBACK;
2832 call_sv ((SV *)req, G_VOID | G_DISCARD); 2889 call_sv ((SV *)req, G_VOID | G_DISCARD);
2833 } 2890 }
2920 2977
2921 if (!svp) croak ("Time::HiRes is required"); 2978 if (!svp) croak ("Time::HiRes is required");
2922 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); 2979 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
2923 2980
2924 nvtime = INT2PTR (double (*)(), SvIV (*svp)); 2981 nvtime = INT2PTR (double (*)(), SvIV (*svp));
2982
2983 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
2984 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
2925 } 2985 }
2926 2986
2927 assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); 2987 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
2928} 2988}
2929 2989
2930SV * 2990SV *
2931new (char *klass, ...) 2991new (char *klass, ...)
2932 ALIAS: 2992 ALIAS:
2934 CODE: 2994 CODE:
2935{ 2995{
2936 struct coro *coro; 2996 struct coro *coro;
2937 MAGIC *mg; 2997 MAGIC *mg;
2938 HV *hv; 2998 HV *hv;
2939 CV *cb; 2999 SV *cb;
2940 int i; 3000 int i;
2941 3001
2942 if (items > 1) 3002 if (items > 1)
2943 { 3003 {
2944 cb = coro_sv_2cv (aTHX_ ST (1)); 3004 cb = s_get_cv_croak (ST (1));
2945 3005
2946 if (!ix) 3006 if (!ix)
2947 { 3007 {
2948 if (CvISXSUB (cb)) 3008 if (CvISXSUB (cb))
2949 croak ("Coro::State doesn't support XS functions as coroutine start, caught"); 3009 croak ("Coro::State doesn't support XS functions as coroutine start, caught");
2971 av_extend (coro->args, items - 1 + ix - 1); 3031 av_extend (coro->args, items - 1 + ix - 1);
2972 3032
2973 if (ix) 3033 if (ix)
2974 { 3034 {
2975 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); 3035 av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb));
2976 cb = cv_coro_run; 3036 cb = (SV *)cv_coro_run;
2977 } 3037 }
2978 3038
2979 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); 3039 coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb);
2980 3040
2981 for (i = 2; i < items; i++) 3041 for (i = 2; i < items; i++)
3134 CODE: 3194 CODE:
3135{ 3195{
3136 struct coro *current = SvSTATE_current; 3196 struct coro *current = SvSTATE_current;
3137 SV **throwp = self == current ? &CORO_THROW : &self->except; 3197 SV **throwp = self == current ? &CORO_THROW : &self->except;
3138 SvREFCNT_dec (*throwp); 3198 SvREFCNT_dec (*throwp);
3199 SvGETMAGIC (throw);
3139 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3200 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
3140} 3201}
3141 3202
3142void 3203void
3143api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3204api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3202 CODE: 3263 CODE:
3203 coro_state_destroy (aTHX_ self); 3264 coro_state_destroy (aTHX_ self);
3204 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ 3265 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3205 3266
3206 3267
3268SV *
3269enable_times (int enabled = enable_times)
3270 CODE:
3271{
3272 RETVAL = boolSV (enable_times);
3273
3274 if (enabled != enable_times)
3275 {
3276 enable_times = enabled;
3277
3278 coro_times_update ();
3279 (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current));
3280 }
3281}
3282 OUTPUT:
3283 RETVAL
3284
3285void
3286times (Coro::State self)
3287 PPCODE:
3288{
3289 struct coro *current = SvSTATE (coro_current);
3290
3291 if (expect_false (current == self))
3292 {
3293 coro_times_update ();
3294 coro_times_add (SvSTATE (coro_current));
3295 }
3296
3297 EXTEND (SP, 2);
3298 PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9)));
3299 PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9)));
3300
3301 if (expect_false (current == self))
3302 coro_times_sub (SvSTATE (coro_current));
3303}
3304
3207MODULE = Coro::State PACKAGE = Coro 3305MODULE = Coro::State PACKAGE = Coro
3208 3306
3209BOOT: 3307BOOT:
3210{ 3308{
3211 int i;
3212
3213 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3309 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3214 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3310 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3215 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3311 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3216 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); 3312 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3217 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3313 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3225 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); 3321 cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler);
3226 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); 3322 cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new);
3227 3323
3228 coro_stash = gv_stashpv ("Coro", TRUE); 3324 coro_stash = gv_stashpv ("Coro", TRUE);
3229 3325
3230 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); 3326 newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX));
3231 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); 3327 newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH));
3232 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); 3328 newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL));
3233 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); 3329 newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW));
3234 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); 3330 newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE));
3235 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); 3331 newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN));
3236
3237 for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
3238 coro_ready[i] = newAV ();
3239 3332
3240 { 3333 {
3241 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); 3334 SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE);
3242 3335
3243 coroapi.schedule = api_schedule; 3336 coroapi.schedule = api_schedule;
3295void 3388void
3296_set_readyhook (SV *hook) 3389_set_readyhook (SV *hook)
3297 PROTOTYPE: $ 3390 PROTOTYPE: $
3298 CODE: 3391 CODE:
3299 SvREFCNT_dec (coro_readyhook); 3392 SvREFCNT_dec (coro_readyhook);
3393 SvGETMAGIC (hook);
3394 if (SvOK (hook))
3395 {
3300 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 3396 coro_readyhook = newSVsv (hook);
3397 CORO_READYHOOK = invoke_sv_ready_hook_helper;
3398 }
3399 else
3400 {
3401 coro_readyhook = 0;
3402 CORO_READYHOOK = 0;
3403 }
3301 3404
3302int 3405int
3303prio (Coro::State coro, int newprio = 0) 3406prio (Coro::State coro, int newprio = 0)
3304 PROTOTYPE: $;$ 3407 PROTOTYPE: $;$
3305 ALIAS: 3408 ALIAS:
3311 if (items > 1) 3414 if (items > 1)
3312 { 3415 {
3313 if (ix) 3416 if (ix)
3314 newprio = coro->prio - newprio; 3417 newprio = coro->prio - newprio;
3315 3418
3316 if (newprio < PRIO_MIN) newprio = PRIO_MIN; 3419 if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN;
3317 if (newprio > PRIO_MAX) newprio = PRIO_MAX; 3420 if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX;
3318 3421
3319 coro->prio = newprio; 3422 coro->prio = newprio;
3320 } 3423 }
3321} 3424}
3322 OUTPUT: 3425 OUTPUT:
3421 CODE: 3524 CODE:
3422{ 3525{
3423 struct coro *coro = SvSTATE_current; 3526 struct coro *coro = SvSTATE_current;
3424 AV **avp = ix ? &coro->on_leave : &coro->on_enter; 3527 AV **avp = ix ? &coro->on_leave : &coro->on_enter;
3425 3528
3426 block = (SV *)coro_sv_2cv (aTHX_ block); 3529 block = s_get_cv_croak (block);
3427 3530
3428 if (!*avp) 3531 if (!*avp)
3429 *avp = newAV (); 3532 *avp = newAV ();
3430 3533
3431 av_push (*avp, SvREFCNT_inc (block)); 3534 av_push (*avp, SvREFCNT_inc (block));
3448MODULE = Coro::State PACKAGE = Coro::Semaphore 3551MODULE = Coro::State PACKAGE = Coro::Semaphore
3449 3552
3450SV * 3553SV *
3451new (SV *klass, SV *count = 0) 3554new (SV *klass, SV *count = 0)
3452 CODE: 3555 CODE:
3556{
3557 int semcnt = 1;
3558
3559 if (count)
3560 {
3561 SvGETMAGIC (count);
3562
3563 if (SvOK (count))
3564 semcnt = SvIV (count);
3565 }
3566
3453 RETVAL = sv_bless ( 3567 RETVAL = sv_bless (
3454 coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), 3568 coro_waitarray_new (aTHX_ semcnt),
3455 GvSTASH (CvGV (cv)) 3569 GvSTASH (CvGV (cv))
3456 ); 3570 );
3571}
3457 OUTPUT: 3572 OUTPUT:
3458 RETVAL 3573 RETVAL
3459 3574
3460# helper for Coro::Channel and others 3575# helper for Coro::Channel and others
3461SV * 3576SV *
3619 3734
3620void 3735void
3621_register (char *target, char *proto, SV *req) 3736_register (char *target, char *proto, SV *req)
3622 CODE: 3737 CODE:
3623{ 3738{
3624 CV *req_cv = coro_sv_2cv (aTHX_ req); 3739 SV *req_cv = s_get_cv_croak (req);
3625 /* newXSproto doesn't return the CV on 5.8 */ 3740 /* newXSproto doesn't return the CV on 5.8 */
3626 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); 3741 CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__);
3627 sv_setpv ((SV *)slf_cv, proto); 3742 sv_setpv ((SV *)slf_cv, proto);
3628 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); 3743 sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0);
3629} 3744}
3630 3745
3746MODULE = Coro::State PACKAGE = Coro::Select
3747
3748void
3749patch_pp_sselect ()
3750 CODE:
3751 if (!coro_old_pp_sselect)
3752 {
3753 coro_select_select = (SV *)get_cv ("Coro::Select::select", 0);
3754 coro_old_pp_sselect = PL_ppaddr [OP_SSELECT];
3755 PL_ppaddr [OP_SSELECT] = coro_pp_sselect;
3756 }
3757
3758void
3759unpatch_pp_sselect ()
3760 CODE:
3761 if (coro_old_pp_sselect)
3762 {
3763 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3764 coro_old_pp_sselect = 0;
3765 }
3766
3767

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