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Comparing Coro/Coro/State.xs (file contents):
Revision 1.371 by root, Sat Aug 22 22:36:23 2009 UTC vs.
Revision 1.397 by root, Fri May 6 21:15:17 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
… …
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
… …
116static void (*u2time)(pTHX_ UV ret[2]); 126static void (*u2time)(pTHX_ UV ret[2]);
117 127
118/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
119#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
120static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
131static void slf_destroy (pTHX_ struct coro *coro);
121 132
122static U32 cctx_gen; 133static U32 cctx_gen;
123static size_t cctx_stacksize = CORO_STACKSIZE; 134static size_t cctx_stacksize = CORO_STACKSIZE;
124static struct CoroAPI coroapi; 135static struct CoroAPI coroapi;
125static AV *main_mainstack; /* used to differentiate between $main and others */ 136static AV *main_mainstack; /* used to differentiate between $main and others */
… …
186 int valgrind_id; 197 int valgrind_id;
187#endif 198#endif
188 unsigned char flags; 199 unsigned char flags;
189} coro_cctx; 200} coro_cctx;
190 201
191coro_cctx *cctx_current; /* the currently running cctx */ 202static coro_cctx *cctx_current; /* the currently running cctx */
192 203
193/*****************************************************************************/ 204/*****************************************************************************/
194 205
195enum { 206enum {
196 CF_RUNNING = 0x0001, /* coroutine is running */ 207 CF_RUNNING = 0x0001, /* coroutine is running */
197 CF_READY = 0x0002, /* coroutine is ready */ 208 CF_READY = 0x0002, /* coroutine is ready */
198 CF_NEW = 0x0004, /* has never been switched to */ 209 CF_NEW = 0x0004, /* has never been switched to */
199 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 210 CF_DESTROYED = 0x0008, /* coroutine data has been freed */
200 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 211 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
212 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
201}; 213};
202 214
203/* 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 */
204typedef struct 216typedef struct
205{ 217{
… …
231 CV *startcv; /* the CV to execute */ 243 CV *startcv; /* the CV to execute */
232 AV *args; /* data associated with this coroutine (initial args) */ 244 AV *args; /* data associated with this coroutine (initial args) */
233 int refcnt; /* coroutines are refcounted, yes */ 245 int refcnt; /* coroutines are refcounted, yes */
234 int flags; /* CF_ flags */ 246 int flags; /* CF_ flags */
235 HV *hv; /* the perl hash associated with this coro, if any */ 247 HV *hv; /* the perl hash associated with this coro, if any */
236 void (*on_destroy)(pTHX_ struct coro *coro);
237 248
238 /* statistics */ 249 /* statistics */
239 int usecount; /* number of transfers to this coro */ 250 int usecount; /* number of transfers to this coro */
240 251
241 /* coro process data */ 252 /* coro process data */
… …
250 261
251 /* on_enter/on_leave */ 262 /* on_enter/on_leave */
252 AV *on_enter; 263 AV *on_enter;
253 AV *on_leave; 264 AV *on_leave;
254 265
266 /* swap_sv */
267 AV *swap_sv;
268
255 /* times */ 269 /* times */
256 coro_ts t_cpu, t_real; 270 coro_ts t_cpu, t_real;
257 271
258 /* linked list */ 272 /* linked list */
259 struct coro *next, *prev; 273 struct coro *next, *prev;
… …
262typedef struct coro *Coro__State; 276typedef struct coro *Coro__State;
263typedef struct coro *Coro__State_or_hashref; 277typedef struct coro *Coro__State_or_hashref;
264 278
265/* the following variables are effectively part of the perl context */ 279/* the following variables are effectively part of the perl context */
266/* and get copied between struct coro and these variables */ 280/* and get copied between struct coro and these variables */
267/* the mainr easonw e don't support windows process emulation */ 281/* the main reason we don't support windows process emulation */
268static struct CoroSLF slf_frame; /* the current slf frame */ 282static struct CoroSLF slf_frame; /* the current slf frame */
269 283
270/** Coro ********************************************************************/ 284/** Coro ********************************************************************/
271 285
272#define CORO_PRIO_MAX 3 286#define CORO_PRIO_MAX 3
… …
278 292
279/* for Coro.pm */ 293/* for Coro.pm */
280static SV *coro_current; 294static SV *coro_current;
281static SV *coro_readyhook; 295static SV *coro_readyhook;
282static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 296static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
283static CV *cv_coro_run, *cv_coro_terminate; 297static CV *cv_coro_run;
284static struct coro *coro_first; 298static struct coro *coro_first;
285#define coro_nready coroapi.nready 299#define coro_nready coroapi.nready
286 300
287/** Coro::Select ************************************************************/ 301/** Coro::Select ************************************************************/
288 302
… …
301 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ 315 /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */
302 PL_op->op_flags |= OPf_STACKED; 316 PL_op->op_flags |= OPf_STACKED;
303 PL_op->op_private = 0; 317 PL_op->op_private = 0;
304 return PL_ppaddr [OP_ENTERSUB](aTHX); 318 return PL_ppaddr [OP_ENTERSUB](aTHX);
305} 319}
320
321/** time stuff **************************************************************/
322
323#ifdef HAS_GETTIMEOFDAY
324
325static void
326coro_u2time (pTHX_ UV ret[2])
327{
328 struct timeval tv;
329 gettimeofday (&tv, 0);
330
331 ret [0] = tv.tv_sec;
332 ret [1] = tv.tv_usec;
333}
334
335static double
336coro_nvtime ()
337{
338 struct timeval tv;
339 gettimeofday (&tv, 0);
340
341 return tv.tv_sec + tv.tv_usec * 1e-6;
342}
343
344static void
345time_init (pTHX)
346{
347 nvtime = coro_nvtime;
348 u2time = coro_u2time;
349}
350
351#else
352
353static void
354time_init (pTHX)
355{
356 SV **svp;
357
358 require_pv ("Time/HiRes.pm");
359
360 svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
361
362 if (!svp) croak ("Time::HiRes is required, but missing. Caught");
363 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught");
364
365 nvtime = INT2PTR (double (*)(), SvIV (*svp));
366
367 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
368 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
369}
370
371#endif
306 372
307/** lowlevel stuff **********************************************************/ 373/** lowlevel stuff **********************************************************/
308 374
309static SV * 375static SV *
310coro_get_sv (pTHX_ const char *name, int create) 376coro_get_sv (pTHX_ const char *name, int create)
… …
550 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); 616 AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv);
551} 617}
552 618
553/** load & save, init *******************************************************/ 619/** load & save, init *******************************************************/
554 620
621/* swap sv heads, at least logically */
622static void
623swap_svs (pTHX_ Coro__State c)
624{
625 int i;
626
627 for (i = 0; i <= AvFILLp (c->swap_sv); )
628 {
629 SV *a = AvARRAY (c->swap_sv)[i++];
630 SV *b = AvARRAY (c->swap_sv)[i++];
631
632 const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */
633 SV tmp;
634
635 /* swap sv_any */
636 SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp);
637
638 /* swap sv_flags */
639 SvFLAGS (&tmp) = SvFLAGS (a);
640 SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep);
641 SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep);
642
643#if PERL_VERSION_ATLEAST (5,10,0)
644 /* perl 5.10 complicates this _quite_ a bit, but it also is
645 * much faster, so no quarrels here. alternatively, we could
646 * sv_upgrade to avoid this.
647 */
648 {
649 /* swap sv_u */
650 tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u;
651
652 /* if SvANY points to the head, we need to adjust the pointers,
653 * as the pointer for a still points to b, and maybe vice versa.
654 */
655 #define svany_in_head(type) \
656 (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type)))
657
658 if (svany_in_head (SvTYPE (a)))
659 SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a);
660
661 if (svany_in_head (SvTYPE (b)))
662 SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b);
663 }
664#endif
665 }
666}
667
668#define SWAP_SVS(coro) \
669 if (expect_false ((coro)->swap_sv)) \
670 swap_svs (aTHX_ (coro))
671
555static void 672static void
556on_enterleave_call (pTHX_ SV *cb); 673on_enterleave_call (pTHX_ SV *cb);
557 674
558static void 675static void
559load_perl (pTHX_ Coro__State c) 676load_perl (pTHX_ Coro__State c)
… …
605 int i; 722 int i;
606 723
607 for (i = 0; i <= AvFILLp (c->on_enter); ++i) 724 for (i = 0; i <= AvFILLp (c->on_enter); ++i)
608 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); 725 on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]);
609 } 726 }
727
728 SWAP_SVS (c);
610} 729}
611 730
612static void 731static void
613save_perl (pTHX_ Coro__State c) 732save_perl (pTHX_ Coro__State c)
614{ 733{
734 SWAP_SVS (c);
735
615 if (expect_false (c->on_leave)) 736 if (expect_false (c->on_leave))
616 { 737 {
617 int i; 738 int i;
618 739
619 for (i = AvFILLp (c->on_leave); i >= 0; --i) 740 for (i = AvFILLp (c->on_leave); i >= 0; --i)
… …
926slf_check_repeat (pTHX_ struct CoroSLF *frame) 1047slf_check_repeat (pTHX_ struct CoroSLF *frame)
927{ 1048{
928 return 1; 1049 return 1;
929} 1050}
930 1051
931static UNOP coro_setup_op; 1052static UNOP init_perl_op;
932 1053
933static 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 */
934coro_setup (pTHX_ struct coro *coro) 1055init_perl (pTHX_ struct coro *coro)
935{ 1056{
936 /* 1057 /*
937 * emulate part of the perl startup here. 1058 * emulate part of the perl startup here.
938 */ 1059 */
939 coro_init_stacks (aTHX); 1060 coro_init_stacks (aTHX);
… …
946 PL_comppad_name_fill = 0; 1067 PL_comppad_name_fill = 0;
947 PL_comppad_name_floor = 0; 1068 PL_comppad_name_floor = 0;
948 PL_curpm = 0; 1069 PL_curpm = 0;
949 PL_curpad = 0; 1070 PL_curpad = 0;
950 PL_localizing = 0; 1071 PL_localizing = 0;
951 PL_dirty = 0;
952 PL_restartop = 0; 1072 PL_restartop = 0;
953#if PERL_VERSION_ATLEAST (5,10,0) 1073#if PERL_VERSION_ATLEAST (5,10,0)
954 PL_parser = 0; 1074 PL_parser = 0;
955#endif 1075#endif
956 PL_hints = 0; 1076 PL_hints = 0;
… …
988 */ 1108 */
989 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 */
990 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 */
991 1111
992 /* 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 */
993 coro_setup_op.op_next = PL_op; 1113 init_perl_op.op_next = PL_op;
994 coro_setup_op.op_type = OP_ENTERSUB; 1114 init_perl_op.op_type = OP_ENTERSUB;
995 coro_setup_op.op_ppaddr = pp_slf; 1115 init_perl_op.op_ppaddr = pp_slf;
996 /* 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 */
997 1117
998 PL_op = (OP *)&coro_setup_op; 1118 PL_op = (OP *)&init_perl_op;
999 1119
1000 /* copy throw, in case it was set before coro_setup */ 1120 /* copy throw, in case it was set before init_perl */
1001 CORO_THROW = coro->except; 1121 CORO_THROW = coro->except;
1122
1123 SWAP_SVS (coro);
1002 1124
1003 if (expect_false (enable_times)) 1125 if (expect_false (enable_times))
1004 { 1126 {
1005 coro_times_update (); 1127 coro_times_update ();
1006 coro_times_sub (coro); 1128 coro_times_sub (coro);
… …
1027 dounwind (-1); 1149 dounwind (-1);
1028 } 1150 }
1029} 1151}
1030 1152
1031static void 1153static void
1032coro_destruct_perl (pTHX_ struct coro *coro) 1154destroy_perl (pTHX_ struct coro *coro)
1033{ 1155{
1034 SV *svf [9]; 1156 SV *svf [9];
1035 1157
1036 { 1158 {
1159 SV *old_current = SvRV (coro_current);
1037 struct coro *current = SvSTATE_current; 1160 struct coro *current = SvSTATE (old_current);
1038 1161
1039 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1162 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1040 1163
1041 save_perl (aTHX_ current); 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
1042 load_perl (aTHX_ coro); 1169 load_perl (aTHX_ coro);
1043 1170
1044 coro_unwind_stacks (aTHX); 1171 coro_unwind_stacks (aTHX);
1045 coro_destruct_stacks (aTHX); 1172 coro_destruct_stacks (aTHX);
1173
1174 /* restore swapped sv's */
1175 SWAP_SVS (coro);
1046 1176
1047 // now save some sv's to be free'd later 1177 // now save some sv's to be free'd later
1048 svf [0] = GvSV (PL_defgv); 1178 svf [0] = GvSV (PL_defgv);
1049 svf [1] = (SV *)GvAV (PL_defgv); 1179 svf [1] = (SV *)GvAV (PL_defgv);
1050 svf [2] = GvSV (PL_errgv); 1180 svf [2] = GvSV (PL_errgv);
… …
1053 svf [5] = GvSV (irsgv); 1183 svf [5] = GvSV (irsgv);
1054 svf [6] = (SV *)GvHV (PL_hintgv); 1184 svf [6] = (SV *)GvHV (PL_hintgv);
1055 svf [7] = PL_diehook; 1185 svf [7] = PL_diehook;
1056 svf [8] = PL_warnhook; 1186 svf [8] = PL_warnhook;
1057 assert (9 == sizeof (svf) / sizeof (*svf)); 1187 assert (9 == sizeof (svf) / sizeof (*svf));
1188
1189 SvRV_set (coro_current, old_current);
1058 1190
1059 load_perl (aTHX_ current); 1191 load_perl (aTHX_ current);
1060 } 1192 }
1061 1193
1062 { 1194 {
… …
1372cctx_destroy (coro_cctx *cctx) 1504cctx_destroy (coro_cctx *cctx)
1373{ 1505{
1374 if (!cctx) 1506 if (!cctx)
1375 return; 1507 return;
1376 1508
1377 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? 1509 assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));
1378 1510
1379 --cctx_count; 1511 --cctx_count;
1380 coro_destroy (&cctx->cctx); 1512 coro_destroy (&cctx->cctx);
1381 1513
1382 /* coro_transfer creates new, empty cctx's */ 1514 /* coro_transfer creates new, empty cctx's */
… …
1492 if (expect_false (next->flags & CF_NEW)) 1624 if (expect_false (next->flags & CF_NEW))
1493 { 1625 {
1494 /* need to start coroutine */ 1626 /* need to start coroutine */
1495 next->flags &= ~CF_NEW; 1627 next->flags &= ~CF_NEW;
1496 /* setup coroutine call */ 1628 /* setup coroutine call */
1497 coro_setup (aTHX_ next); 1629 init_perl (aTHX_ next);
1498 } 1630 }
1499 else 1631 else
1500 load_perl (aTHX_ next); 1632 load_perl (aTHX_ next);
1501 1633
1502 /* possibly untie and reuse the cctx */ 1634 /* possibly untie and reuse the cctx */
… …
1541#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))
1542#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1674#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1543 1675
1544/** high level stuff ********************************************************/ 1676/** high level stuff ********************************************************/
1545 1677
1546static int 1678static void
1547coro_state_destroy (pTHX_ struct coro *coro) 1679coro_state_destroy (pTHX_ struct coro *coro)
1548{ 1680{
1549 if (coro->flags & CF_DESTROYED) 1681 if (coro->flags & CF_DESTROYED)
1550 return 0; 1682 return;
1551 1683
1552 if (coro->on_destroy && !PL_dirty)
1553 coro->on_destroy (aTHX_ coro); 1684 slf_destroy (aTHX_ coro);
1554 1685
1555 coro->flags |= CF_DESTROYED; 1686 coro->flags |= CF_DESTROYED;
1556 1687
1557 if (coro->flags & CF_READY) 1688 if (coro->flags & CF_READY)
1558 { 1689 {
… …
1565 1696
1566 if (coro->mainstack 1697 if (coro->mainstack
1567 && coro->mainstack != main_mainstack 1698 && coro->mainstack != main_mainstack
1568 && coro->slot 1699 && coro->slot
1569 && !PL_dirty) 1700 && !PL_dirty)
1570 coro_destruct_perl (aTHX_ coro); 1701 destroy_perl (aTHX_ coro);
1702
1703 if (coro->next) coro->next->prev = coro->prev;
1704 if (coro->prev) coro->prev->next = coro->next;
1705 if (coro == coro_first) coro_first = coro->next;
1571 1706
1572 cctx_destroy (coro->cctx); 1707 cctx_destroy (coro->cctx);
1573 SvREFCNT_dec (coro->startcv); 1708 SvREFCNT_dec (coro->startcv);
1574 SvREFCNT_dec (coro->args); 1709 SvREFCNT_dec (coro->args);
1710 SvREFCNT_dec (coro->swap_sv);
1575 SvREFCNT_dec (CORO_THROW); 1711 SvREFCNT_dec (CORO_THROW);
1576
1577 if (coro->next) coro->next->prev = coro->prev;
1578 if (coro->prev) coro->prev->next = coro->next;
1579 if (coro == coro_first) coro_first = coro->next;
1580
1581 return 1;
1582} 1712}
1583 1713
1584static int 1714static int
1585coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1715coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1586{ 1716{
… …
1754 { 1884 {
1755 /* nothing to schedule: call the idle handler */ 1885 /* nothing to schedule: call the idle handler */
1756 if (SvROK (sv_idle) 1886 if (SvROK (sv_idle)
1757 && SvOBJECT (SvRV (sv_idle))) 1887 && SvOBJECT (SvRV (sv_idle)))
1758 { 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
1759 ++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 */
1760 api_ready (aTHX_ SvRV (sv_idle)); 1893 api_ready (aTHX_ SvRV (sv_idle));
1761 --coro_nready; 1894 --coro_nready;
1762 } 1895 }
1763 else 1896 else
1764 { 1897 {
1898 /* TODO: deprecated, remove, cannot work reliably *//*D*/
1765 dSP; 1899 dSP;
1766 1900
1767 ENTER; 1901 ENTER;
1768 SAVETMPS; 1902 SAVETMPS;
1769 1903
… …
1879 2013
1880static void 2014static void
1881coro_call_on_destroy (pTHX_ struct coro *coro) 2015coro_call_on_destroy (pTHX_ struct coro *coro)
1882{ 2016{
1883 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);
1884 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
1885 2018
1886 if (on_destroyp) 2019 if (on_destroyp)
1887 { 2020 {
1888 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;
1889 2024
1890 while (AvFILLp (on_destroy) >= 0) 2025 while (AvFILLp (on_destroy) >= 0)
1891 { 2026 {
1892 dSP; /* don't disturb outer sp */ 2027 dSP; /* don't disturb outer sp */
1893 SV *cb = av_pop (on_destroy); 2028 SV *cb = av_pop (on_destroy);
… …
1895 PUSHMARK (SP); 2030 PUSHMARK (SP);
1896 2031
1897 if (statusp) 2032 if (statusp)
1898 { 2033 {
1899 int i; 2034 int i;
1900 AV *status = (AV *)SvRV (*statusp);
1901 EXTEND (SP, AvFILLp (status) + 1); 2035 EXTEND (SP, AvFILLp (status) + 1);
1902 2036
1903 for (i = 0; i <= AvFILLp (status); ++i) 2037 for (i = 0; i <= AvFILLp (status); ++i)
1904 PUSHs (AvARRAY (status)[i]); 2038 PUSHs (AvARRAY (status)[i]);
1905 } 2039 }
… …
1909 } 2043 }
1910 } 2044 }
1911} 2045}
1912 2046
1913static void 2047static void
1914slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2048coro_set_status (HV *coro_hv, SV **arg, int items)
1915{ 2049{
1916 int i;
1917 HV *hv = (HV *)SvRV (coro_current);
1918 AV *av = newAV (); 2050 AV *av = newAV ();
1919 2051
1920 /* items are actually not so common, so optimise for this case */ 2052 /* items are actually not so common, so optimise for this case */
1921 if (items) 2053 if (items)
1922 { 2054 {
2055 int i;
2056
1923 av_extend (av, items - 1); 2057 av_extend (av, items - 1);
1924 2058
1925 for (i = 0; i < items; ++i) 2059 for (i = 0; i < items; ++i)
1926 av_push (av, SvREFCNT_inc_NN (arg [i])); 2060 av_push (av, SvREFCNT_inc_NN (arg [i]));
1927 } 2061 }
1928 2062
1929 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}
1930 2065
2066static void
2067slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2068{
1931 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 */
1932 api_ready (aTHX_ sv_manager); 2070 api_ready (aTHX_ sv_manager);
1933 2071
1934 frame->prepare = prepare_schedule; 2072 frame->prepare = prepare_schedule;
1935 frame->check = slf_check_repeat; 2073 frame->check = slf_check_repeat;
1936 2074
1937 /* as a minor optimisation, we could unwind all stacks here */ 2075 /* as a minor optimisation, we could unwind all stacks here */
1938 /* 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 */
1939 /*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 (coro_hv, arg, items);
2086 slf_init_terminate_cancel_common (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 (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 (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 (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 ();
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 (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 (coro);
2176
2177 coro_set_status (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;
1940} 2185}
1941 2186
1942/*****************************************************************************/ 2187/*****************************************************************************/
1943/* async pool handler */ 2188/* async pool handler */
1944 2189
… …
1984 coro->saved_deffh = 0; 2229 coro->saved_deffh = 0;
1985 2230
1986 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2231 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
1987 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2232 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
1988 { 2233 {
1989 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2234 slf_init_terminate_cancel_common (aTHX_ frame, hv);
1990 coro->invoke_av = newAV (); 2235 return;
1991
1992 frame->prepare = prepare_nop;
1993 } 2236 }
1994 else 2237 else
1995 { 2238 {
1996 av_clear (GvAV (PL_defgv)); 2239 av_clear (GvAV (PL_defgv));
1997 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);
… …
2220static void 2463static void
2221slf_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)
2222{ 2465{
2223 frame->prepare = prepare_cede_notself; 2466 frame->prepare = prepare_cede_notself;
2224 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;
2225} 2485}
2226 2486
2227/* 2487/*
2228 * these not obviously related functions are all rolled into one 2488 * these not obviously related functions are all rolled into one
2229 * 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
… …
2348 if (PL_op->op_flags & OPf_STACKED) 2608 if (PL_op->op_flags & OPf_STACKED)
2349 { 2609 {
2350 if (items > slf_arga) 2610 if (items > slf_arga)
2351 { 2611 {
2352 slf_arga = items; 2612 slf_arga = items;
2353 free (slf_argv); 2613 Safefree (slf_argv);
2354 slf_argv = malloc (slf_arga * sizeof (SV *)); 2614 New (0, slf_argv, slf_arga, SV *);
2355 } 2615 }
2356 2616
2357 slf_argc = items; 2617 slf_argc = items;
2358 2618
2359 for (i = 0; i < items; ++i) 2619 for (i = 0; i < items; ++i)
… …
2555 SvREFCNT_dec (cb); 2815 SvREFCNT_dec (cb);
2556 } 2816 }
2557} 2817}
2558 2818
2559static void 2819static void
2560coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2820coro_semaphore_destroy (pTHX_ struct coro *coro)
2561{ 2821{
2562 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2822 /* call $sem->adjust (0) to possibly wake up some other waiters */
2563 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2823 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2564} 2824}
2565 2825
… …
2572 /* 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 */
2573 if (CORO_THROW) 2833 if (CORO_THROW)
2574 return 0; 2834 return 0;
2575 else if (SvIVX (count_sv) > 0) 2835 else if (SvIVX (count_sv) > 0)
2576 { 2836 {
2577 SvSTATE_current->on_destroy = 0; 2837 frame->destroy = 0;
2578 2838
2579 if (acquire) 2839 if (acquire)
2580 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2840 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2581 else 2841 else
2582 coro_semaphore_adjust (aTHX_ av, 0); 2842 coro_semaphore_adjust (aTHX_ av, 0);
… …
2625 { 2885 {
2626 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2886 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2627 2887
2628 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2888 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2629 frame->prepare = prepare_schedule; 2889 frame->prepare = prepare_schedule;
2630
2631 /* to avoid race conditions when a woken-up coro gets terminated */ 2890 /* to avoid race conditions when a woken-up coro gets terminated */
2632 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2891 /* we arrange for a temporary on_destroy that calls adjust (0) */
2633 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2892 frame->destroy = coro_semaphore_destroy;
2634 } 2893 }
2635} 2894}
2636 2895
2637static void 2896static void
2638slf_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)
… …
2720 { 2979 {
2721 SV *cb_cv = s_get_cv_croak (arg [1]); 2980 SV *cb_cv = s_get_cv_croak (arg [1]);
2722 av_push (av, SvREFCNT_inc_NN (cb_cv)); 2981 av_push (av, SvREFCNT_inc_NN (cb_cv));
2723 2982
2724 if (SvIVX (AvARRAY (av)[0])) 2983 if (SvIVX (AvARRAY (av)[0]))
2725 coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ 2984 coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */
2726 2985
2727 frame->prepare = prepare_nop; 2986 frame->prepare = prepare_nop;
2728 frame->check = slf_check_nop; 2987 frame->check = slf_check_nop;
2729 } 2988 }
2730 else if (SvIVX (AvARRAY (av)[0])) 2989 else if (SvIVX (AvARRAY (av)[0]))
… …
2892 /* now call the AIO function - we assume our request is uncancelable */ 3151 /* now call the AIO function - we assume our request is uncancelable */
2893 PUTBACK; 3152 PUTBACK;
2894 call_sv ((SV *)req, G_VOID | G_DISCARD); 3153 call_sv ((SV *)req, G_VOID | G_DISCARD);
2895 } 3154 }
2896 3155
2897 /* 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 */
2898 frame->data = (void *)state; 3157 frame->data = (void *)state;
2899 frame->prepare = prepare_schedule; 3158 frame->prepare = prepare_schedule;
2900 frame->check = slf_check_aio_req; 3159 frame->check = slf_check_aio_req;
2901} 3160}
2902 3161
… …
3033 coroapi.prepare_nop = prepare_nop; 3292 coroapi.prepare_nop = prepare_nop;
3034 coroapi.prepare_schedule = prepare_schedule; 3293 coroapi.prepare_schedule = prepare_schedule;
3035 coroapi.prepare_cede = prepare_cede; 3294 coroapi.prepare_cede = prepare_cede;
3036 coroapi.prepare_cede_notself = prepare_cede_notself; 3295 coroapi.prepare_cede_notself = prepare_cede_notself;
3037 3296
3038 { 3297 time_init (aTHX);
3039 SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0);
3040
3041 if (!svp) croak ("Time::HiRes is required");
3042 if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer");
3043
3044 nvtime = INT2PTR (double (*)(), SvIV (*svp));
3045
3046 svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0);
3047 u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp));
3048 }
3049 3298
3050 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); 3299 assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL));
3051} 3300}
3052 3301
3053SV * 3302SV *
… …
3062void 3311void
3063transfer (...) 3312transfer (...)
3064 PROTOTYPE: $$ 3313 PROTOTYPE: $$
3065 CODE: 3314 CODE:
3066 CORO_EXECUTE_SLF_XS (slf_init_transfer); 3315 CORO_EXECUTE_SLF_XS (slf_init_transfer);
3067
3068bool
3069_destroy (SV *coro_sv)
3070 CODE:
3071 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
3072 OUTPUT:
3073 RETVAL
3074 3316
3075void 3317void
3076_exit (int code) 3318_exit (int code)
3077 PROTOTYPE: $ 3319 PROTOTYPE: $
3078 CODE: 3320 CODE:
… …
3154 CODE: 3396 CODE:
3155{ 3397{
3156 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) 3398 if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot))
3157 { 3399 {
3158 struct coro *current = SvSTATE_current; 3400 struct coro *current = SvSTATE_current;
3401 struct CoroSLF slf_save;
3159 3402
3160 if (current != coro) 3403 if (current != coro)
3161 { 3404 {
3162 PUTBACK; 3405 PUTBACK;
3163 save_perl (aTHX_ current); 3406 save_perl (aTHX_ current);
3164 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;
3165 SPAGAIN; 3417 SPAGAIN;
3166 } 3418 }
3167 3419
3168 PUSHSTACK; 3420 PUSHSTACK;
3169 3421
… …
3179 SPAGAIN; 3431 SPAGAIN;
3180 3432
3181 if (current != coro) 3433 if (current != coro)
3182 { 3434 {
3183 PUTBACK; 3435 PUTBACK;
3436 slf_frame = slf_save;
3184 save_perl (aTHX_ coro); 3437 save_perl (aTHX_ coro);
3185 load_perl (aTHX_ current); 3438 load_perl (aTHX_ current);
3186 SPAGAIN; 3439 SPAGAIN;
3187 } 3440 }
3188 } 3441 }
… …
3201 RETVAL = boolSV (coro->flags & ix); 3454 RETVAL = boolSV (coro->flags & ix);
3202 OUTPUT: 3455 OUTPUT:
3203 RETVAL 3456 RETVAL
3204 3457
3205void 3458void
3206throw (Coro::State self, SV *throw = &PL_sv_undef) 3459throw (Coro::State self, SV *exception = &PL_sv_undef)
3207 PROTOTYPE: $;$ 3460 PROTOTYPE: $;$
3208 CODE: 3461 CODE:
3209{ 3462{
3210 struct coro *current = SvSTATE_current; 3463 struct coro *current = SvSTATE_current;
3211 SV **throwp = self == current ? &CORO_THROW : &self->except; 3464 SV **exceptionp = self == current ? &CORO_THROW : &self->except;
3212 SvREFCNT_dec (*throwp); 3465 SvREFCNT_dec (*exceptionp);
3213 SvGETMAGIC (throw); 3466 SvGETMAGIC (exception);
3214 *throwp = SvOK (throw) ? newSVsv (throw) : 0; 3467 *exceptionp = SvOK (exception) ? newSVsv (exception) : 0;
3215} 3468}
3216 3469
3217void 3470void
3218api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 3471api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
3219 PROTOTYPE: $;$ 3472 PROTOTYPE: $;$
… …
3274 3527
3275void 3528void
3276cancel (Coro::State self) 3529cancel (Coro::State self)
3277 CODE: 3530 CODE:
3278 coro_state_destroy (aTHX_ self); 3531 coro_state_destroy (aTHX_ self);
3279 coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */
3280
3281 3532
3282SV * 3533SV *
3283enable_times (int enabled = enable_times) 3534enable_times (int enabled = enable_times)
3284 CODE: 3535 CODE:
3285{ 3536{
… …
3314 3565
3315 if (expect_false (current == self)) 3566 if (expect_false (current == self))
3316 coro_times_sub (SvSTATE (coro_current)); 3567 coro_times_sub (SvSTATE (coro_current));
3317} 3568}
3318 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
3589
3319MODULE = Coro::State PACKAGE = Coro 3590MODULE = Coro::State PACKAGE = Coro
3320 3591
3321BOOT: 3592BOOT:
3322{ 3593{
3323 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3594 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3324 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3595 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3325 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3596 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3326 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3327 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);
3328 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3598 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3329 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3599 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3330 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3600 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3331 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3601 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
… …
3370 api_ready (aTHX_ RETVAL); 3640 api_ready (aTHX_ RETVAL);
3371 OUTPUT: 3641 OUTPUT:
3372 RETVAL 3642 RETVAL
3373 3643
3374void 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
3651void
3375terminate (...) 3652terminate (...)
3376 CODE: 3653 CODE:
3377 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3654 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3655
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
3378 3664
3379void 3665void
3380schedule (...) 3666schedule (...)
3381 CODE: 3667 CODE:
3382 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3668 CORO_EXECUTE_SLF_XS (slf_init_schedule);
… …
3779 { 4065 {
3780 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; 4066 PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect;
3781 coro_old_pp_sselect = 0; 4067 coro_old_pp_sselect = 0;
3782 } 4068 }
3783 4069
3784

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