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Comparing Coro/Coro/State.xs (file contents):
Revision 1.396 by root, Fri May 6 18:01:13 2011 UTC vs.
Revision 1.402 by root, Sun May 22 13:07:23 2011 UTC

… …
126static void (*u2time)(pTHX_ UV ret[2]); 126static void (*u2time)(pTHX_ UV ret[2]);
127 127
128/* we hijack an hopefully unused CV flag for our purposes */ 128/* we hijack an hopefully unused CV flag for our purposes */
129#define CVf_SLF 0x4000 129#define CVf_SLF 0x4000
130static OP *pp_slf (pTHX); 130static OP *pp_slf (pTHX);
131static void slf_destroy (pTHX_ struct coro *coro);
131 132
132static U32 cctx_gen; 133static U32 cctx_gen;
133static size_t cctx_stacksize = CORO_STACKSIZE; 134static size_t cctx_stacksize = CORO_STACKSIZE;
134static struct CoroAPI coroapi; 135static struct CoroAPI coroapi;
135static AV *main_mainstack; /* used to differentiate between $main and others */ 136static AV *main_mainstack; /* used to differentiate between $main and others */
… …
165static char times_valid; 166static char times_valid;
166 167
167static struct coro_cctx *cctx_first; 168static struct coro_cctx *cctx_first;
168static int cctx_count, cctx_idle; 169static int cctx_count, cctx_idle;
169 170
170enum { 171enum
172{
171 CC_MAPPED = 0x01, 173 CC_MAPPED = 0x01,
172 CC_NOREUSE = 0x02, /* throw this away after tracing */ 174 CC_NOREUSE = 0x02, /* throw this away after tracing */
173 CC_TRACE = 0x04, 175 CC_TRACE = 0x04,
174 CC_TRACE_SUB = 0x08, /* trace sub calls */ 176 CC_TRACE_SUB = 0x08, /* trace sub calls */
175 CC_TRACE_LINE = 0x10, /* trace each statement */ 177 CC_TRACE_LINE = 0x10, /* trace each statement */
… …
200 202
201static coro_cctx *cctx_current; /* the currently running cctx */ 203static coro_cctx *cctx_current; /* the currently running cctx */
202 204
203/*****************************************************************************/ 205/*****************************************************************************/
204 206
207static MGVTBL coro_state_vtbl;
208
205enum { 209enum
210{
206 CF_RUNNING = 0x0001, /* coroutine is running */ 211 CF_RUNNING = 0x0001, /* coroutine is running */
207 CF_READY = 0x0002, /* coroutine is ready */ 212 CF_READY = 0x0002, /* coroutine is ready */
208 CF_NEW = 0x0004, /* has never been switched to */ 213 CF_NEW = 0x0004, /* has never been switched to */
209 CF_DESTROYED = 0x0008, /* coroutine data has been freed */ 214 CF_ZOMBIE = 0x0008, /* coroutine data has been freed */
210 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ 215 CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */
211 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ 216 CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */
212}; 217};
213 218
214/* the structure where most of the perl state is stored, overlaid on the cxstack */ 219/* the structure where most of the perl state is stored, overlaid on the cxstack */
… …
222#define VAR(name,type) type name; 227#define VAR(name,type) type name;
223# include "state.h" 228# include "state.h"
224#undef VAR 229#undef VAR
225} perl_slots; 230} perl_slots;
226 231
232// how many context stack entries do we need for perl_slots
227#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) 233#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT))
228 234
229/* this is a structure representing a perl-level coroutine */ 235/* this is a structure representing a perl-level coroutine */
230struct coro { 236struct coro
237{
231 /* the C coroutine allocated to this perl coroutine, if any */ 238 /* the C coroutine allocated to this perl coroutine, if any */
232 coro_cctx *cctx; 239 coro_cctx *cctx;
233 240
234 /* ready queue */ 241 /* ready queue */
235 struct coro *next_ready; 242 struct coro *next_ready;
… …
237 /* state data */ 244 /* state data */
238 struct CoroSLF slf_frame; /* saved slf frame */ 245 struct CoroSLF slf_frame; /* saved slf frame */
239 AV *mainstack; 246 AV *mainstack;
240 perl_slots *slot; /* basically the saved sp */ 247 perl_slots *slot; /* basically the saved sp */
241 248
242 CV *startcv; /* the CV to execute */ 249 CV *startcv; /* the CV to execute */
243 AV *args; /* data associated with this coroutine (initial args) */ 250 AV *args; /* data associated with this coroutine (initial args) */
244 int refcnt; /* coroutines are refcounted, yes */
245 int flags; /* CF_ flags */ 251 int flags; /* CF_ flags */
246 HV *hv; /* the perl hash associated with this coro, if any */ 252 HV *hv; /* the perl hash associated with this coro, if any */
247 void (*on_destroy)(pTHX_ struct coro *coro); /* for temporary use by xs in critical sections */
248 253
249 /* statistics */ 254 /* statistics */
250 int usecount; /* number of transfers to this coro */ 255 int usecount; /* number of transfers to this coro */
251 256
252 /* coro process data */ 257 /* coro process data */
253 int prio; 258 int prio;
254 SV *except; /* exception to be thrown */ 259 SV *except; /* exception to be thrown */
255 SV *rouse_cb; 260 SV *rouse_cb; /* last rouse callback */
261 AV *on_destroy; /* callbacks or coros to notify on destroy */
262 AV *status; /* the exit status list */
256 263
257 /* async_pool */ 264 /* async_pool */
258 SV *saved_deffh; 265 SV *saved_deffh;
259 SV *invoke_cb; 266 SV *invoke_cb;
260 AV *invoke_av; 267 AV *invoke_av;
… …
292 299
293/* for Coro.pm */ 300/* for Coro.pm */
294static SV *coro_current; 301static SV *coro_current;
295static SV *coro_readyhook; 302static SV *coro_readyhook;
296static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ 303static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */
297static CV *cv_coro_run, *cv_coro_terminate; 304static CV *cv_coro_run;
298static struct coro *coro_first; 305static struct coro *coro_first;
299#define coro_nready coroapi.nready 306#define coro_nready coroapi.nready
300 307
301/** Coro::Select ************************************************************/ 308/** Coro::Select ************************************************************/
302 309
… …
466 : 0) 473 : 0)
467 474
468#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 475#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
469#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) 476#define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state)
470 477
478INLINE MAGIC *
479SvSTATEhv_p (pTHX_ SV *coro)
480{
481 MAGIC *mg;
482
483 if (expect_true (
484 SvTYPE (coro) == SVt_PVHV
485 && (mg = CORO_MAGIC_state (coro))
486 && mg->mg_virtual == &coro_state_vtbl
487 ))
488 return mg;
489
490 return 0;
491}
492
471INLINE struct coro * 493INLINE struct coro *
472SvSTATE_ (pTHX_ SV *coro) 494SvSTATE_ (pTHX_ SV *coro)
473{ 495{
474 HV *stash;
475 MAGIC *mg; 496 MAGIC *mg;
476 497
477 if (SvROK (coro)) 498 if (SvROK (coro))
478 coro = SvRV (coro); 499 coro = SvRV (coro);
479 500
480 if (expect_false (SvTYPE (coro) != SVt_PVHV)) 501 mg = SvSTATEhv_p (aTHX_ coro);
502 if (!mg)
481 croak ("Coro::State object required"); 503 croak ("Coro::State object required");
482 504
483 stash = SvSTASH (coro);
484 if (expect_false (stash != coro_stash && stash != coro_state_stash))
485 {
486 /* very slow, but rare, check */
487 if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State"))
488 croak ("Coro::State object required");
489 }
490
491 mg = CORO_MAGIC_state (coro);
492 return (struct coro *)mg->mg_ptr; 505 return (struct coro *)mg->mg_ptr;
493} 506}
494 507
495#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 508#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
496 509
… …
798 811
799 PUTBACK; 812 PUTBACK;
800 } 813 }
801 814
802 /* allocate some space on the context stack for our purposes */ 815 /* allocate some space on the context stack for our purposes */
803 /* we manually unroll here, as usually 2 slots is enough */ 816 if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max))
804 if (SLOT_COUNT >= 1) CXINC;
805 if (SLOT_COUNT >= 2) CXINC;
806 if (SLOT_COUNT >= 3) CXINC;
807 { 817 {
808 unsigned int i; 818 unsigned int i;
819
809 for (i = 3; i < SLOT_COUNT; ++i) 820 for (i = 0; i < SLOT_COUNT; ++i)
810 CXINC; 821 CXINC;
811 } 822
812 cxstack_ix -= SLOT_COUNT; /* undo allocation */ 823 cxstack_ix -= SLOT_COUNT; /* undo allocation */
824 }
813 825
814 c->mainstack = PL_mainstack; 826 c->mainstack = PL_mainstack;
815 827
816 { 828 {
817 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); 829 perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1);
… …
838# define coro_init_stacks(thx) init_stacks () 850# define coro_init_stacks(thx) init_stacks ()
839#else 851#else
840static void 852static void
841coro_init_stacks (pTHX) 853coro_init_stacks (pTHX)
842{ 854{
843 PL_curstackinfo = new_stackinfo(32, 8); 855 PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */
844 PL_curstackinfo->si_type = PERLSI_MAIN; 856 PL_curstackinfo->si_type = PERLSI_MAIN;
845 PL_curstack = PL_curstackinfo->si_stack; 857 PL_curstack = PL_curstackinfo->si_stack;
846 PL_mainstack = PL_curstack; /* remember in case we switch stacks */ 858 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
847 859
848 PL_stack_base = AvARRAY(PL_curstack); 860 PL_stack_base = AvARRAY(PL_curstack);
… …
955#endif 967#endif
956 968
957/* 969/*
958 * This overrides the default magic get method of %SIG elements. 970 * This overrides the default magic get method of %SIG elements.
959 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook 971 * The original one doesn't provide for reading back of PL_diehook/PL_warnhook
960 * and instead of trying to save and restore the hash elements, we just provide 972 * and instead of trying to save and restore the hash elements (extremely slow),
961 * readback here. 973 * we just provide our own readback here.
962 */ 974 */
963static int 975static int
964coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) 976coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg)
965{ 977{
966 const char *s = MgPV_nolen_const (mg); 978 const char *s = MgPV_nolen_const (mg);
… …
1074 PL_parser = 0; 1086 PL_parser = 0;
1075#endif 1087#endif
1076 PL_hints = 0; 1088 PL_hints = 0;
1077 1089
1078 /* recreate the die/warn hooks */ 1090 /* recreate the die/warn hooks */
1079 PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); 1091 PL_diehook = SvREFCNT_inc (rv_diehook);
1080 PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); 1092 PL_warnhook = SvREFCNT_inc (rv_warnhook);
1081 1093
1082 GvSV (PL_defgv) = newSV (0); 1094 GvSV (PL_defgv) = newSV (0);
1083 GvAV (PL_defgv) = coro->args; coro->args = 0; 1095 GvAV (PL_defgv) = coro->args; coro->args = 0;
1084 GvSV (PL_errgv) = newSV (0); 1096 GvSV (PL_errgv) = newSV (0);
1085 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); 1097 GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0);
… …
1106 /* this newly created coroutine might be run on an existing cctx which most 1118 /* this newly created coroutine might be run on an existing cctx which most
1107 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 1119 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
1108 */ 1120 */
1109 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 1121 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
1110 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 1122 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
1123 slf_frame.destroy = 0;
1111 1124
1112 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ 1125 /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */
1113 init_perl_op.op_next = PL_op; 1126 init_perl_op.op_next = PL_op;
1114 init_perl_op.op_type = OP_ENTERSUB; 1127 init_perl_op.op_type = OP_ENTERSUB;
1115 init_perl_op.op_ppaddr = pp_slf; 1128 init_perl_op.op_ppaddr = pp_slf;
… …
1154destroy_perl (pTHX_ struct coro *coro) 1167destroy_perl (pTHX_ struct coro *coro)
1155{ 1168{
1156 SV *svf [9]; 1169 SV *svf [9];
1157 1170
1158 { 1171 {
1172 SV *old_current = SvRV (coro_current);
1159 struct coro *current = SvSTATE_current; 1173 struct coro *current = SvSTATE (old_current);
1160 1174
1161 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); 1175 assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack));
1162 1176
1163 save_perl (aTHX_ current); 1177 save_perl (aTHX_ current);
1164 SvRV_set (coro_current, (SV *)coro->hv); /* this will cause acroak in transfer_check */ 1178
1179 /* this will cause transfer_check to croak on block*/
1180 SvRV_set (coro_current, (SV *)coro->hv);
1181
1165 load_perl (aTHX_ coro); 1182 load_perl (aTHX_ coro);
1166 1183
1167 coro_unwind_stacks (aTHX); 1184 coro_unwind_stacks (aTHX);
1168 coro_destruct_stacks (aTHX);
1169 1185
1170 /* restore swapped sv's */ 1186 /* restore swapped sv's */
1171 SWAP_SVS (coro); 1187 SWAP_SVS (coro);
1188
1189 coro_destruct_stacks (aTHX);
1172 1190
1173 // now save some sv's to be free'd later 1191 // now save some sv's to be free'd later
1174 svf [0] = GvSV (PL_defgv); 1192 svf [0] = GvSV (PL_defgv);
1175 svf [1] = (SV *)GvAV (PL_defgv); 1193 svf [1] = (SV *)GvAV (PL_defgv);
1176 svf [2] = GvSV (PL_errgv); 1194 svf [2] = GvSV (PL_errgv);
… …
1180 svf [6] = (SV *)GvHV (PL_hintgv); 1198 svf [6] = (SV *)GvHV (PL_hintgv);
1181 svf [7] = PL_diehook; 1199 svf [7] = PL_diehook;
1182 svf [8] = PL_warnhook; 1200 svf [8] = PL_warnhook;
1183 assert (9 == sizeof (svf) / sizeof (*svf)); 1201 assert (9 == sizeof (svf) / sizeof (*svf));
1184 1202
1185 SvRV_set (coro_current, (SV *)current->hv); 1203 SvRV_set (coro_current, old_current);
1204
1186 load_perl (aTHX_ current); 1205 load_perl (aTHX_ current);
1187 } 1206 }
1188 1207
1189 { 1208 {
1190 unsigned int i; 1209 unsigned int i;
… …
1202INLINE void 1221INLINE void
1203free_coro_mortal (pTHX) 1222free_coro_mortal (pTHX)
1204{ 1223{
1205 if (expect_true (coro_mortal)) 1224 if (expect_true (coro_mortal))
1206 { 1225 {
1207 SvREFCNT_dec (coro_mortal); 1226 SvREFCNT_dec ((SV *)coro_mortal);
1208 coro_mortal = 0; 1227 coro_mortal = 0;
1209 } 1228 }
1210} 1229}
1211 1230
1212static int 1231static int
… …
1575 if (expect_true (prev != next)) 1594 if (expect_true (prev != next))
1576 { 1595 {
1577 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1596 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1578 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); 1597 croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,");
1579 1598
1580 if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) 1599 if (expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED)))
1581 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); 1600 croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,");
1582 1601
1583#if !PERL_VERSION_ATLEAST (5,10,0) 1602#if !PERL_VERSION_ATLEAST (5,10,0)
1584 if (expect_false (PL_lex_state != LEX_NOTPARSING)) 1603 if (expect_false (PL_lex_state != LEX_NOTPARSING))
1585 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); 1604 croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,");
… …
1668#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) 1687#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx))
1669#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) 1688#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next)
1670 1689
1671/** high level stuff ********************************************************/ 1690/** high level stuff ********************************************************/
1672 1691
1692/* this function is actually Coro, not Coro::State, but we call it from here */
1693/* because it is convenient - but it hasn't been declared yet for that reason */
1694static void
1695coro_call_on_destroy (pTHX_ struct coro *coro);
1696
1673static void 1697static void
1674coro_state_destroy (pTHX_ struct coro *coro) 1698coro_state_destroy (pTHX_ struct coro *coro)
1675{ 1699{
1676 if (coro->flags & CF_DESTROYED) 1700 if (coro->flags & CF_ZOMBIE)
1677 return; 1701 return;
1678 1702
1679 /* this callback is reserved for slf functions needing to do cleanup */
1680 if (coro->on_destroy && !PL_dirty)
1681 coro->on_destroy (aTHX_ coro); 1703 slf_destroy (aTHX_ coro);
1682 1704
1683 /*
1684 * The on_destroy above most likely is from an SLF call.
1685 * Since by definition the SLF call will not finish when we destroy
1686 * the coro, we will have to force-finish it here, otherwise
1687 * cleanup functions cannot call SLF functions.
1688 */
1689 coro->slf_frame.prepare = 0;
1690
1691 coro->flags |= CF_DESTROYED; 1705 coro->flags |= CF_ZOMBIE;
1692 1706
1693 if (coro->flags & CF_READY) 1707 if (coro->flags & CF_READY)
1694 { 1708 {
1695 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1709 /* reduce nready, as destroying a ready coro effectively unreadies it */
1696 /* alternative: look through all ready queues and remove the coro */ 1710 /* alternative: look through all ready queues and remove the coro */
1697 --coro_nready; 1711 --coro_nready;
1698 } 1712 }
1699 else 1713 else
1700 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1714 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1715
1716 if (coro->next) coro->next->prev = coro->prev;
1717 if (coro->prev) coro->prev->next = coro->next;
1718 if (coro == coro_first) coro_first = coro->next;
1701 1719
1702 if (coro->mainstack 1720 if (coro->mainstack
1703 && coro->mainstack != main_mainstack 1721 && coro->mainstack != main_mainstack
1704 && coro->slot 1722 && coro->slot
1705 && !PL_dirty) 1723 && !PL_dirty)
1706 destroy_perl (aTHX_ coro); 1724 destroy_perl (aTHX_ coro);
1707 1725
1708 if (coro->next) coro->next->prev = coro->prev;
1709 if (coro->prev) coro->prev->next = coro->next;
1710 if (coro == coro_first) coro_first = coro->next;
1711
1712 cctx_destroy (coro->cctx); 1726 cctx_destroy (coro->cctx);
1713 SvREFCNT_dec (coro->startcv); 1727 SvREFCNT_dec (coro->startcv);
1714 SvREFCNT_dec (coro->args); 1728 SvREFCNT_dec (coro->args);
1715 SvREFCNT_dec (coro->swap_sv); 1729 SvREFCNT_dec (coro->swap_sv);
1716 SvREFCNT_dec (CORO_THROW); 1730 SvREFCNT_dec (CORO_THROW);
1731
1732 coro_call_on_destroy (aTHX_ coro);
1733
1734 /* more destruction mayhem in coro_state_free */
1717} 1735}
1718 1736
1719static int 1737static int
1720coro_state_free (pTHX_ SV *sv, MAGIC *mg) 1738coro_state_free (pTHX_ SV *sv, MAGIC *mg)
1721{ 1739{
1722 struct coro *coro = (struct coro *)mg->mg_ptr; 1740 struct coro *coro = (struct coro *)mg->mg_ptr;
1723 mg->mg_ptr = 0; 1741 mg->mg_ptr = 0;
1724 1742
1725 coro->hv = 0;
1726
1727 if (--coro->refcnt < 0)
1728 {
1729 coro_state_destroy (aTHX_ coro); 1743 coro_state_destroy (aTHX_ coro);
1744 SvREFCNT_dec (coro->on_destroy);
1745 SvREFCNT_dec (coro->status);
1746
1730 Safefree (coro); 1747 Safefree (coro);
1731 }
1732 1748
1733 return 0; 1749 return 0;
1734} 1750}
1735 1751
1736static int 1752static int
1737coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) 1753coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params)
1738{ 1754{
1739 struct coro *coro = (struct coro *)mg->mg_ptr; 1755 /* called when perl clones the current process the slow way (windows process emulation) */
1740 1756 /* WE SIMply nuke the pointers in the copy, causing perl to croak */
1741 ++coro->refcnt; 1757 mg->mg_ptr = 0;
1758 mg->mg_virtual = 0;
1742 1759
1743 return 0; 1760 return 0;
1744} 1761}
1745 1762
1746static MGVTBL coro_state_vtbl = { 1763static MGVTBL coro_state_vtbl = {
… …
1872 struct coro *next = coro_deq (aTHX); 1889 struct coro *next = coro_deq (aTHX);
1873 1890
1874 if (expect_true (next)) 1891 if (expect_true (next))
1875 { 1892 {
1876 /* cannot transfer to destroyed coros, skip and look for next */ 1893 /* cannot transfer to destroyed coros, skip and look for next */
1877 if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) 1894 if (expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED)))
1878 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ 1895 SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */
1879 else 1896 else
1880 { 1897 {
1881 next->flags &= ~CF_READY; 1898 next->flags &= ~CF_READY;
1882 --coro_nready; 1899 --coro_nready;
… …
2015 coro->slot->runops = RUNOPS_DEFAULT; 2032 coro->slot->runops = RUNOPS_DEFAULT;
2016 } 2033 }
2017} 2034}
2018 2035
2019static void 2036static void
2037coro_push_av (pTHX_ AV *av, I32 gimme_v)
2038{
2039 if (AvFILLp (av) >= 0 && gimme_v != G_VOID)
2040 {
2041 dSP;
2042
2043 if (gimme_v == G_SCALAR)
2044 XPUSHs (AvARRAY (av)[AvFILLp (av)]);
2045 else
2046 {
2047 int i;
2048 EXTEND (SP, AvFILLp (av) + 1);
2049
2050 for (i = 0; i <= AvFILLp (av); ++i)
2051 PUSHs (AvARRAY (av)[i]);
2052 }
2053
2054 PUTBACK;
2055 }
2056}
2057
2058static void
2059coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb)
2060{
2061 if (!coro->on_destroy)
2062 coro->on_destroy = newAV ();
2063
2064 av_push (coro->on_destroy, cb);
2065}
2066
2067static void
2068slf_destroy_join (pTHX_ struct CoroSLF *frame)
2069{
2070 SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv);
2071}
2072
2073static int
2074slf_check_join (pTHX_ struct CoroSLF *frame)
2075{
2076 struct coro *coro = (struct coro *)frame->data;
2077
2078 if (!coro->status)
2079 return 1;
2080
2081 frame->destroy = 0;
2082
2083 coro_push_av (aTHX_ coro->status, GIMME_V);
2084
2085 SvREFCNT_dec ((SV *)coro->hv);
2086
2087 return 0;
2088}
2089
2090static void
2091slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2092{
2093 struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef);
2094
2095 if (items > 1)
2096 croak ("join called with too many arguments");
2097
2098 if (coro->status)
2099 frame->prepare = prepare_nop;
2100 else
2101 {
2102 coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current)));
2103 frame->prepare = prepare_schedule;
2104 }
2105
2106 frame->check = slf_check_join;
2107 frame->destroy = slf_destroy_join;
2108 frame->data = (void *)coro;
2109 SvREFCNT_inc (coro->hv);
2110}
2111
2112static void
2020coro_call_on_destroy (pTHX_ struct coro *coro) 2113coro_call_on_destroy (pTHX_ struct coro *coro)
2021{ 2114{
2022 SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); 2115 AV *od = coro->on_destroy;
2023 2116
2024 if (on_destroyp) 2117 if (!od)
2025 { 2118 return;
2026 SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0);
2027 AV *on_destroy = sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*on_destroyp)));
2028 AV *status = statusp ? sv_2mortal (SvREFCNT_inc ((AV *)SvRV (*statusp))) : 0;
2029 2119
2030 while (AvFILLp (on_destroy) >= 0) 2120 while (AvFILLp (od) >= 0)
2121 {
2122 SV *cb = sv_2mortal (av_pop (od));
2123
2124 /* coro hv's (and only hv's at the moment) are supported as well */
2125 if (SvSTATEhv_p (aTHX_ cb))
2126 api_ready (aTHX_ cb);
2127 else
2031 { 2128 {
2032 dSP; /* don't disturb outer sp */ 2129 dSP; /* don't disturb outer sp */
2033 SV *cb = av_pop (on_destroy);
2034
2035 PUSHMARK (SP); 2130 PUSHMARK (SP);
2036 2131
2037 if (statusp) 2132 if (coro->status)
2038 { 2133 {
2039 int i; 2134 PUTBACK;
2040 EXTEND (SP, AvFILLp (status) + 1); 2135 coro_push_av (aTHX_ coro->status, G_ARRAY);
2041 2136 SPAGAIN;
2042 for (i = 0; i <= AvFILLp (status); ++i)
2043 PUSHs (AvARRAY (status)[i]);
2044 } 2137 }
2045 2138
2046 PUTBACK; 2139 PUTBACK;
2047 call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); 2140 call_sv (cb, G_VOID | G_DISCARD);
2048 } 2141 }
2049 } 2142 }
2050} 2143}
2051 2144
2052static void 2145static void
2053coro_set_status (HV *coro_hv, SV **arg, int items) 2146coro_set_status (pTHX_ struct coro *coro, SV **arg, int items)
2054{ 2147{
2055 AV *av = newAV (); 2148 AV *av;
2149
2150 if (coro->status)
2151 {
2152 av = coro->status;
2153 av_clear (av);
2154 }
2155 else
2156 av = coro->status = newAV ();
2056 2157
2057 /* items are actually not so common, so optimise for this case */ 2158 /* items are actually not so common, so optimise for this case */
2058 if (items) 2159 if (items)
2059 { 2160 {
2060 int i; 2161 int i;
… …
2062 av_extend (av, items - 1); 2163 av_extend (av, items - 1);
2063 2164
2064 for (i = 0; i < items; ++i) 2165 for (i = 0; i < items; ++i)
2065 av_push (av, SvREFCNT_inc_NN (arg [i])); 2166 av_push (av, SvREFCNT_inc_NN (arg [i]));
2066 } 2167 }
2067
2068 hv_store (coro_hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0);
2069} 2168}
2070 2169
2071static void 2170static void
2072slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) 2171slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv)
2073{ 2172{
… …
2085static void 2184static void
2086slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2185slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2087{ 2186{
2088 HV *coro_hv = (HV *)SvRV (coro_current); 2187 HV *coro_hv = (HV *)SvRV (coro_current);
2089 2188
2090 coro_set_status (coro_hv, arg, items); 2189 coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items);
2091 slf_init_terminate_cancel_common (frame, coro_hv); 2190 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2092} 2191}
2093 2192
2094static void 2193static void
2095slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2194slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2096{ 2195{
… …
2101 croak ("Coro::cancel called without coro object,"); 2200 croak ("Coro::cancel called without coro object,");
2102 2201
2103 coro = SvSTATE (arg [0]); 2202 coro = SvSTATE (arg [0]);
2104 coro_hv = coro->hv; 2203 coro_hv = coro->hv;
2105 2204
2106 coro_set_status (coro_hv, arg + 1, items - 1); 2205 coro_set_status (aTHX_ coro, arg + 1, items - 1);
2107 2206
2108 if (expect_false (coro->flags & CF_NOCANCEL)) 2207 if (expect_false (coro->flags & CF_NOCANCEL))
2109 { 2208 {
2110 /* coro currently busy cancelling something, so just notify it */ 2209 /* coro currently busy cancelling something, so just notify it */
2111 coro->slf_frame.data = (void *)coro; 2210 coro->slf_frame.data = (void *)coro;
… …
2114 frame->check = slf_check_nop; 2213 frame->check = slf_check_nop;
2115 } 2214 }
2116 else if (coro_hv == (HV *)SvRV (coro_current)) 2215 else if (coro_hv == (HV *)SvRV (coro_current))
2117 { 2216 {
2118 /* cancelling the current coro is allowed, and equals terminate */ 2217 /* cancelling the current coro is allowed, and equals terminate */
2119 slf_init_terminate_cancel_common (frame, coro_hv); 2218 slf_init_terminate_cancel_common (aTHX_ frame, coro_hv);
2120 } 2219 }
2121 else 2220 else
2122 { 2221 {
2123 struct coro *self = SvSTATE_current; 2222 struct coro *self = SvSTATE_current;
2124 2223
… …
2128 * this is ugly, and hopefully fully worth the extra speed. 2227 * this is ugly, and hopefully fully worth the extra speed.
2129 * besides, I can't get the slow-but-safe version working... 2228 * besides, I can't get the slow-but-safe version working...
2130 */ 2229 */
2131 slf_frame.data = 0; 2230 slf_frame.data = 0;
2132 self->flags |= CF_NOCANCEL; 2231 self->flags |= CF_NOCANCEL;
2133
2134 coro_state_destroy (aTHX_ coro); 2232 coro_state_destroy (aTHX_ coro);
2135 coro_call_on_destroy (aTHX_ coro);
2136
2137 self->flags &= ~CF_NOCANCEL; 2233 self->flags &= ~CF_NOCANCEL;
2138 2234
2139 if (slf_frame.data) 2235 if (slf_frame.data)
2140 { 2236 {
2141 /* while we were busy we have been cancelled, so terminate */ 2237 /* while we were busy we have been cancelled, so terminate */
2142 slf_init_terminate_cancel_common (frame, self->hv); 2238 slf_init_terminate_cancel_common (aTHX_ frame, self->hv);
2143 } 2239 }
2144 else 2240 else
2145 { 2241 {
2146 frame->prepare = prepare_nop; 2242 frame->prepare = prepare_nop;
2147 frame->check = slf_check_nop; 2243 frame->check = slf_check_nop;
2148 } 2244 }
2149 } 2245 }
2150} 2246}
2151 2247
2248static int
2249slf_check_safe_cancel (pTHX_ struct CoroSLF *frame)
2250{
2251 frame->prepare = 0;
2252 coro_unwind_stacks (aTHX);
2253
2254 slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current));
2255
2256 return 1;
2257}
2258
2259static int
2260safe_cancel (pTHX_ struct coro *coro, SV **arg, int items)
2261{
2262 if (coro->cctx)
2263 croak ("coro inside C callback, unable to cancel at this time, caught");
2264
2265 if (coro->flags & CF_NEW)
2266 {
2267 coro_set_status (aTHX_ coro, arg, items);
2268 coro_state_destroy (aTHX_ coro);
2269 }
2270 else
2271 {
2272 if (!coro->slf_frame.prepare)
2273 croak ("coro outside an SLF function, unable to cancel at this time, caught");
2274
2275 slf_destroy (aTHX_ coro);
2276
2277 coro_set_status (aTHX_ coro, arg, items);
2278 coro->slf_frame.prepare = prepare_nop;
2279 coro->slf_frame.check = slf_check_safe_cancel;
2280
2281 api_ready (aTHX_ (SV *)coro->hv);
2282 }
2283
2284 return 1;
2285}
2286
2152/*****************************************************************************/ 2287/*****************************************************************************/
2153/* async pool handler */ 2288/* async pool handler */
2154 2289
2155static int 2290static int
2156slf_check_pool_handler (pTHX_ struct CoroSLF *frame) 2291slf_check_pool_handler (pTHX_ struct CoroSLF *frame)
… …
2194 coro->saved_deffh = 0; 2329 coro->saved_deffh = 0;
2195 2330
2196 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) 2331 if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss)
2197 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) 2332 || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size))
2198 { 2333 {
2199 coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); 2334 slf_init_terminate_cancel_common (aTHX_ frame, hv);
2200 coro->invoke_av = newAV (); 2335 return;
2201
2202 frame->prepare = prepare_nop;
2203 } 2336 }
2204 else 2337 else
2205 { 2338 {
2206 av_clear (GvAV (PL_defgv)); 2339 av_clear (GvAV (PL_defgv));
2207 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); 2340 hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0);
… …
2430static void 2563static void
2431slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2564slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2432{ 2565{
2433 frame->prepare = prepare_cede_notself; 2566 frame->prepare = prepare_cede_notself;
2434 frame->check = slf_check_nop; 2567 frame->check = slf_check_nop;
2568}
2569
2570/* "undo"/cancel a running slf call - used when cancelling a coro, mainly */
2571static void
2572slf_destroy (pTHX_ struct coro *coro)
2573{
2574 /* this callback is reserved for slf functions needing to do cleanup */
2575 if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty)
2576 coro->slf_frame.destroy (aTHX_ &coro->slf_frame);
2577
2578 /*
2579 * The on_destroy above most likely is from an SLF call.
2580 * Since by definition the SLF call will not finish when we destroy
2581 * the coro, we will have to force-finish it here, otherwise
2582 * cleanup functions cannot call SLF functions.
2583 */
2584 coro->slf_frame.prepare = 0;
2435} 2585}
2436 2586
2437/* 2587/*
2438 * these not obviously related functions are all rolled into one 2588 * these not obviously related functions are all rolled into one
2439 * function to increase chances that they all will call transfer with the same 2589 * function to increase chances that they all will call transfer with the same
… …
2508 croak (0); 2658 croak (0);
2509 } 2659 }
2510 2660
2511 /* return value handling - mostly like entersub */ 2661 /* return value handling - mostly like entersub */
2512 /* make sure we put something on the stack in scalar context */ 2662 /* make sure we put something on the stack in scalar context */
2513 if (GIMME_V == G_SCALAR) 2663 if (GIMME_V == G_SCALAR
2664 && expect_false (PL_stack_sp != PL_stack_base + checkmark + 1))
2514 { 2665 {
2515 dSP; 2666 dSP;
2516 SV **bot = PL_stack_base + checkmark; 2667 SV **bot = PL_stack_base + checkmark;
2517 2668
2518 if (sp == bot) /* too few, push undef */ 2669 if (sp == bot) /* too few, push undef */
2519 bot [1] = &PL_sv_undef; 2670 bot [1] = &PL_sv_undef;
2520 else if (sp != bot + 1) /* too many, take last one */ 2671 else /* too many, take last one */
2521 bot [1] = *sp; 2672 bot [1] = *sp;
2522 2673
2523 SP = bot + 1; 2674 SP = bot + 1;
2524 2675
2525 PUTBACK; 2676 PUTBACK;
… …
2765 SvREFCNT_dec (cb); 2916 SvREFCNT_dec (cb);
2766 } 2917 }
2767} 2918}
2768 2919
2769static void 2920static void
2770coro_semaphore_on_destroy (pTHX_ struct coro *coro) 2921coro_semaphore_destroy (pTHX_ struct CoroSLF *frame)
2771{ 2922{
2772 /* call $sem->adjust (0) to possibly wake up some other waiters */ 2923 /* call $sem->adjust (0) to possibly wake up some other waiters */
2773 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); 2924 coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0);
2774} 2925}
2775 2926
2776static int 2927static int
2777slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) 2928slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire)
2778{ 2929{
2779 AV *av = (AV *)frame->data; 2930 AV *av = (AV *)frame->data;
2780 SV *count_sv = AvARRAY (av)[0]; 2931 SV *count_sv = AvARRAY (av)[0];
2932 SV *coro_hv = SvRV (coro_current);
2781 2933
2782 /* if we are about to throw, don't actually acquire the lock, just throw */ 2934 /* if we are about to throw, don't actually acquire the lock, just throw */
2783 if (CORO_THROW) 2935 if (CORO_THROW)
2784 return 0; 2936 return 0;
2785 else if (SvIVX (count_sv) > 0) 2937 else if (SvIVX (count_sv) > 0)
2786 { 2938 {
2787 SvSTATE_current->on_destroy = 0; 2939 frame->destroy = 0;
2788 2940
2789 if (acquire) 2941 if (acquire)
2790 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2942 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2791 else 2943 else
2792 coro_semaphore_adjust (aTHX_ av, 0); 2944 coro_semaphore_adjust (aTHX_ av, 0);
… …
2797 { 2949 {
2798 int i; 2950 int i;
2799 /* if we were woken up but can't down, we look through the whole */ 2951 /* if we were woken up but can't down, we look through the whole */
2800 /* waiters list and only add us if we aren't in there already */ 2952 /* waiters list and only add us if we aren't in there already */
2801 /* this avoids some degenerate memory usage cases */ 2953 /* this avoids some degenerate memory usage cases */
2802 2954 for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug
2803 for (i = 1; i <= AvFILLp (av); ++i)
2804 if (AvARRAY (av)[i] == SvRV (coro_current)) 2955 if (AvARRAY (av)[i] == coro_hv)
2805 return 1; 2956 return 1;
2806 2957
2807 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2958 av_push (av, SvREFCNT_inc (coro_hv));
2808 return 1; 2959 return 1;
2809 } 2960 }
2810} 2961}
2811 2962
2812static int 2963static int
… …
2835 { 2986 {
2836 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2987 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2837 2988
2838 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2989 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2839 frame->prepare = prepare_schedule; 2990 frame->prepare = prepare_schedule;
2840
2841 /* to avoid race conditions when a woken-up coro gets terminated */ 2991 /* to avoid race conditions when a woken-up coro gets terminated */
2842 /* we arrange for a temporary on_destroy that calls adjust (0) */ 2992 /* we arrange for a temporary on_destroy that calls adjust (0) */
2843 SvSTATE_current->on_destroy = coro_semaphore_on_destroy; 2993 frame->destroy = coro_semaphore_destroy;
2844 } 2994 }
2845} 2995}
2846 2996
2847static void 2997static void
2848slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) 2998slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
… …
3397 PROTOTYPE: $ 3547 PROTOTYPE: $
3398 ALIAS: 3548 ALIAS:
3399 is_ready = CF_READY 3549 is_ready = CF_READY
3400 is_running = CF_RUNNING 3550 is_running = CF_RUNNING
3401 is_new = CF_NEW 3551 is_new = CF_NEW
3402 is_destroyed = CF_DESTROYED 3552 is_destroyed = CF_ZOMBIE
3553 is_zombie = CF_ZOMBIE
3403 is_suspended = CF_SUSPENDED 3554 is_suspended = CF_SUSPENDED
3404 CODE: 3555 CODE:
3405 RETVAL = boolSV (coro->flags & ix); 3556 RETVAL = boolSV (coro->flags & ix);
3406 OUTPUT: 3557 OUTPUT:
3407 RETVAL 3558 RETVAL
… …
3543BOOT: 3694BOOT:
3544{ 3695{
3545 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); 3696 sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE);
3546 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); 3697 sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE);
3547 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); 3698 cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD);
3548 cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD);
3549 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); 3699 coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current);
3550 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); 3700 av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE);
3551 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); 3701 av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE);
3552 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); 3702 sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE);
3553 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); 3703 sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE);
… …
3596void 3746void
3597_destroy (Coro::State coro) 3747_destroy (Coro::State coro)
3598 CODE: 3748 CODE:
3599 /* used by the manager thread */ 3749 /* used by the manager thread */
3600 coro_state_destroy (aTHX_ coro); 3750 coro_state_destroy (aTHX_ coro);
3751
3752void
3753on_destroy (Coro::State coro, SV *cb)
3754 CODE:
3601 coro_call_on_destroy (aTHX_ coro); 3755 coro_push_on_destroy (aTHX_ coro, newSVsv (cb));
3756
3757void
3758join (...)
3759 CODE:
3760 CORO_EXECUTE_SLF_XS (slf_init_join);
3602 3761
3603void 3762void
3604terminate (...) 3763terminate (...)
3605 CODE: 3764 CODE:
3606 CORO_EXECUTE_SLF_XS (slf_init_terminate); 3765 CORO_EXECUTE_SLF_XS (slf_init_terminate);
3607 3766
3608void 3767void
3609cancel (...) 3768cancel (...)
3610 CODE: 3769 CODE:
3611 CORO_EXECUTE_SLF_XS (slf_init_cancel); 3770 CORO_EXECUTE_SLF_XS (slf_init_cancel);
3771
3772int
3773safe_cancel (Coro::State self, ...)
3774 C_ARGS: aTHX_ self, &ST (1), items - 1
3612 3775
3613void 3776void
3614schedule (...) 3777schedule (...)
3615 CODE: 3778 CODE:
3616 CORO_EXECUTE_SLF_XS (slf_init_schedule); 3779 CORO_EXECUTE_SLF_XS (slf_init_schedule);

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