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Comparing Coro/Coro/State.xs (file contents):
Revision 1.278 by root, Sun Nov 16 07:09:28 2008 UTC vs.
Revision 1.286 by root, Mon Nov 17 04:19:49 2008 UTC

… …
142#define NOINLINE attribute ((noinline)) 142#define NOINLINE attribute ((noinline))
143 143
144#include "CoroAPI.h" 144#include "CoroAPI.h"
145 145
146#ifdef USE_ITHREADS 146#ifdef USE_ITHREADS
147
148static perl_mutex coro_lock;
149# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0)
150# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0)
151# if CORO_PTHREAD 147# if CORO_PTHREAD
152static void *coro_thx; 148static void *coro_thx;
153# endif 149# endif
154
155#else
156
157# define LOCK (void)0
158# define UNLOCK (void)0
159
160#endif 150#endif
161
162# undef LOCK
163# define LOCK (void)0
164# undef UNLOCK
165# define UNLOCK (void)0
166 151
167/* helper storage struct for Coro::AIO */ 152/* helper storage struct for Coro::AIO */
168struct io_state 153struct io_state
169{ 154{
170 AV *res; 155 AV *res;
… …
181static struct CoroAPI coroapi; 166static struct CoroAPI coroapi;
182static AV *main_mainstack; /* used to differentiate between $main and others */ 167static AV *main_mainstack; /* used to differentiate between $main and others */
183static JMPENV *main_top_env; 168static JMPENV *main_top_env;
184static HV *coro_state_stash, *coro_stash; 169static HV *coro_state_stash, *coro_stash;
185static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ 170static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */
186static volatile struct coro *transfer_next;
187 171
188static GV *irsgv; /* $/ */ 172static GV *irsgv; /* $/ */
189static GV *stdoutgv; /* *STDOUT */ 173static GV *stdoutgv; /* *STDOUT */
190static SV *rv_diehook; 174static SV *rv_diehook;
191static SV *rv_warnhook; 175static SV *rv_warnhook;
… …
257/* this is a structure representing a perl-level coroutine */ 241/* this is a structure representing a perl-level coroutine */
258struct coro { 242struct coro {
259 /* the C coroutine allocated to this perl coroutine, if any */ 243 /* the C coroutine allocated to this perl coroutine, if any */
260 coro_cctx *cctx; 244 coro_cctx *cctx;
261 245
262 /* process data */ 246 /* state data */
263 struct CoroSLF slf_frame; /* saved slf frame */ 247 struct CoroSLF slf_frame; /* saved slf frame */
264 AV *mainstack; 248 AV *mainstack;
265 perl_slots *slot; /* basically the saved sp */ 249 perl_slots *slot; /* basically the saved sp */
266 250
267 AV *args; /* data associated with this coroutine (initial args) */ 251 AV *args; /* data associated with this coroutine (initial args) */
268 int refcnt; /* coroutines are refcounted, yes */ 252 int refcnt; /* coroutines are refcounted, yes */
269 int flags; /* CF_ flags */ 253 int flags; /* CF_ flags */
270 HV *hv; /* the perl hash associated with this coro, if any */ 254 HV *hv; /* the perl hash associated with this coro, if any */
255 void (*on_destroy)(pTHX_ struct coro *coro);
271 256
272 /* statistics */ 257 /* statistics */
273 int usecount; /* number of transfers to this coro */ 258 int usecount; /* number of transfers to this coro */
274 259
275 /* coro process data */ 260 /* coro process data */
… …
284}; 269};
285 270
286typedef struct coro *Coro__State; 271typedef struct coro *Coro__State;
287typedef struct coro *Coro__State_or_hashref; 272typedef struct coro *Coro__State_or_hashref;
288 273
274/* the following variables are effectively part of the perl context */
275/* and get copied between struct coro and these variables */
276/* the mainr easonw e don't support windows process emulation */
289static struct CoroSLF slf_frame; /* the current slf frame */ 277static struct CoroSLF slf_frame; /* the current slf frame */
278static SV *coro_throw;
290 279
291/** Coro ********************************************************************/ 280/** Coro ********************************************************************/
292 281
293#define PRIO_MAX 3 282#define PRIO_MAX 3
294#define PRIO_HIGH 1 283#define PRIO_HIGH 1
… …
403static MGVTBL coro_cv_vtbl = { 392static MGVTBL coro_cv_vtbl = {
404 0, 0, 0, 0, 393 0, 0, 0, 0,
405 coro_cv_free 394 coro_cv_free
406}; 395};
407 396
408#define CORO_MAGIC(sv, type) \ 397#define CORO_MAGIC(sv, type) \
409 SvMAGIC (sv) \ 398 expect_true (SvMAGIC (sv)) \
410 ? SvMAGIC (sv)->mg_type == type \ 399 ? expect_true (SvMAGIC (sv)->mg_type == type) \
411 ? SvMAGIC (sv) \ 400 ? SvMAGIC (sv) \
412 : mg_find (sv, type) \ 401 : mg_find (sv, type) \
413 : 0 402 : 0
414 403
415#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) 404#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv)
416#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) 405#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state)
417 406
… …
438 mg = CORO_MAGIC_state (coro); 427 mg = CORO_MAGIC_state (coro);
439 return (struct coro *)mg->mg_ptr; 428 return (struct coro *)mg->mg_ptr;
440} 429}
441 430
442#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) 431#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv))
432
433/* fastert than SvSTATE, but expects a coroutine hv */
434INLINE struct coro *
435SvSTATE_hv (SV *sv)
436{
437 MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state)
438 ? SvMAGIC (sv)
439 : mg_find (sv, CORO_MAGIC_type_state);
440
441 return (struct coro *)mg->mg_ptr;
442}
443
444#define SvSTATE_current SvSTATE_hv (SvRV (coro_current))
443 445
444/* the next two functions merely cache the padlists */ 446/* the next two functions merely cache the padlists */
445static void 447static void
446get_padlist (pTHX_ CV *cv) 448get_padlist (pTHX_ CV *cv)
447{ 449{
… …
515 } 517 }
516 518
517 PUTBACK; 519 PUTBACK;
518 } 520 }
519 521
520 slf_frame = c->slf_frame; 522 slf_frame = c->slf_frame;
523 coro_throw = c->throw;
521} 524}
522 525
523static void 526static void
524save_perl (pTHX_ Coro__State c) 527save_perl (pTHX_ Coro__State c)
525{ 528{
529 c->throw = coro_throw;
526 c->slf_frame = slf_frame; 530 c->slf_frame = slf_frame;
527 531
528 { 532 {
529 dSP; 533 dSP;
530 I32 cxix = cxstack_ix; 534 I32 cxix = cxstack_ix;
… …
823slf_check_nop (pTHX_ struct CoroSLF *frame) 827slf_check_nop (pTHX_ struct CoroSLF *frame)
824{ 828{
825 return 0; 829 return 0;
826} 830}
827 831
828static void 832static void NOINLINE /* noinline to keep it out of the transfer fast path */
829coro_setup (pTHX_ struct coro *coro) 833coro_setup (pTHX_ struct coro *coro)
830{ 834{
831 /* 835 /*
832 * emulate part of the perl startup here. 836 * emulate part of the perl startup here.
833 */ 837 */
… …
876 /* this newly created coroutine might be run on an existing cctx which most 880 /* this newly created coroutine might be run on an existing cctx which most
877 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. 881 * likely was suspended in pp_slf, so we have to emulate entering pp_slf here.
878 */ 882 */
879 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ 883 slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */
880 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ 884 slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */
885
886 coro_throw = coro->throw;
881} 887}
882 888
883static void 889static void
884coro_destruct (pTHX_ struct coro *coro) 890coro_destruct (pTHX_ struct coro *coro)
885{ 891{
… …
909 915
910 SvREFCNT_dec (PL_diehook); 916 SvREFCNT_dec (PL_diehook);
911 SvREFCNT_dec (PL_warnhook); 917 SvREFCNT_dec (PL_warnhook);
912 918
913 SvREFCNT_dec (coro->saved_deffh); 919 SvREFCNT_dec (coro->saved_deffh);
914 SvREFCNT_dec (coro->throw); 920 SvREFCNT_dec (coro_throw);
915 921
916 coro_destruct_stacks (aTHX); 922 coro_destruct_stacks (aTHX);
917} 923}
918 924
919INLINE void 925INLINE void
… …
929static int 935static int
930runops_trace (pTHX) 936runops_trace (pTHX)
931{ 937{
932 COP *oldcop = 0; 938 COP *oldcop = 0;
933 int oldcxix = -2; 939 int oldcxix = -2;
934 struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ 940 struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */
935 coro_cctx *cctx = coro->cctx; 941 coro_cctx *cctx = coro->cctx;
936 942
937 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) 943 while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX)))
938 { 944 {
939 PERL_ASYNC_CHECK (); 945 PERL_ASYNC_CHECK ();
… …
1088 1094
1089/* the tail of transfer: execute stuff we can only do after a transfer */ 1095/* the tail of transfer: execute stuff we can only do after a transfer */
1090INLINE void 1096INLINE void
1091transfer_tail (pTHX) 1097transfer_tail (pTHX)
1092{ 1098{
1093 struct coro *next = (struct coro *)transfer_next;
1094 assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */
1095 assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next));
1096
1097 free_coro_mortal (aTHX); 1099 free_coro_mortal (aTHX);
1098 UNLOCK;
1099
1100 if (expect_false (next->throw))
1101 {
1102 SV *exception = sv_2mortal (next->throw);
1103
1104 next->throw = 0;
1105 sv_setsv (ERRSV, exception);
1106 croak (0);
1107 }
1108} 1100}
1109 1101
1110/* 1102/*
1111 * this is a _very_ stripped down perl interpreter ;) 1103 * this is a _very_ stripped down perl interpreter ;)
1112 */ 1104 */
… …
1127 1119
1128 /* inject a fake subroutine call to cctx_init */ 1120 /* inject a fake subroutine call to cctx_init */
1129 cctx_prepare (aTHX_ (coro_cctx *)arg); 1121 cctx_prepare (aTHX_ (coro_cctx *)arg);
1130 1122
1131 /* cctx_run is the alternative tail of transfer() */ 1123 /* cctx_run is the alternative tail of transfer() */
1132 /* TODO: throwing an exception here might be deadly, VERIFY */
1133 transfer_tail (aTHX); 1124 transfer_tail (aTHX);
1134 1125
1135 /* somebody or something will hit me for both perl_run and PL_restartop */ 1126 /* somebody or something will hit me for both perl_run and PL_restartop */
1136 PL_restartop = PL_op; 1127 PL_restartop = PL_op;
1137 perl_run (PL_curinterp); 1128 perl_run (PL_curinterp);
… …
1293/** coroutine switching *****************************************************/ 1284/** coroutine switching *****************************************************/
1294 1285
1295static void 1286static void
1296transfer_check (pTHX_ struct coro *prev, struct coro *next) 1287transfer_check (pTHX_ struct coro *prev, struct coro *next)
1297{ 1288{
1289 /* TODO: throwing up here is considered harmful */
1290
1298 if (expect_true (prev != next)) 1291 if (expect_true (prev != next))
1299 { 1292 {
1300 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) 1293 if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW))))
1301 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); 1294 croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,");
1302 1295
… …
1312#endif 1305#endif
1313 } 1306 }
1314} 1307}
1315 1308
1316/* always use the TRANSFER macro */ 1309/* always use the TRANSFER macro */
1317static void NOINLINE 1310static void NOINLINE /* noinline so we have a fixed stackframe */
1318transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) 1311transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx)
1319{ 1312{
1320 dSTACKLEVEL; 1313 dSTACKLEVEL;
1321 1314
1322 /* sometimes transfer is only called to set idle_sp */ 1315 /* sometimes transfer is only called to set idle_sp */
… …
1337 prev->flags |= CF_RUNNING; 1330 prev->flags |= CF_RUNNING;
1338 } 1331 }
1339 1332
1340 prev->flags &= ~CF_RUNNING; 1333 prev->flags &= ~CF_RUNNING;
1341 next->flags |= CF_RUNNING; 1334 next->flags |= CF_RUNNING;
1342
1343 LOCK;
1344 1335
1345 /* first get rid of the old state */ 1336 /* first get rid of the old state */
1346 save_perl (aTHX_ prev); 1337 save_perl (aTHX_ prev);
1347 1338
1348 if (expect_false (next->flags & CF_NEW)) 1339 if (expect_false (next->flags & CF_NEW))
… …
1381 ++next->usecount; 1372 ++next->usecount;
1382 1373
1383 if (expect_true (!next->cctx)) 1374 if (expect_true (!next->cctx))
1384 next->cctx = cctx_get (aTHX); 1375 next->cctx = cctx_get (aTHX);
1385 1376
1386 assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next));
1387 transfer_next = next;
1388
1389 if (expect_false (prev__cctx != next->cctx)) 1377 if (expect_false (prev__cctx != next->cctx))
1390 { 1378 {
1391 prev__cctx->top_env = PL_top_env; 1379 prev__cctx->top_env = PL_top_env;
1392 PL_top_env = next->cctx->top_env; 1380 PL_top_env = next->cctx->top_env;
1393 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); 1381 coro_transfer (&prev__cctx->cctx, &next->cctx->cctx);
… …
1406coro_state_destroy (pTHX_ struct coro *coro) 1394coro_state_destroy (pTHX_ struct coro *coro)
1407{ 1395{
1408 if (coro->flags & CF_DESTROYED) 1396 if (coro->flags & CF_DESTROYED)
1409 return 0; 1397 return 0;
1410 1398
1399 if (coro->on_destroy)
1400 coro->on_destroy (aTHX_ coro);
1401
1411 coro->flags |= CF_DESTROYED; 1402 coro->flags |= CF_DESTROYED;
1412 1403
1413 if (coro->flags & CF_READY) 1404 if (coro->flags & CF_READY)
1414 { 1405 {
1415 /* reduce nready, as destroying a ready coro effectively unreadies it */ 1406 /* reduce nready, as destroying a ready coro effectively unreadies it */
1416 /* alternative: look through all ready queues and remove the coro */ 1407 /* alternative: look through all ready queues and remove the coro */
1417 LOCK;
1418 --coro_nready; 1408 --coro_nready;
1419 UNLOCK;
1420 } 1409 }
1421 else 1410 else
1422 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ 1411 coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */
1423 1412
1424 if (coro->mainstack && coro->mainstack != main_mainstack) 1413 if (coro->mainstack && coro->mainstack != main_mainstack)
… …
1502 TRANSFER (ta, 1); 1491 TRANSFER (ta, 1);
1503} 1492}
1504 1493
1505/** Coro ********************************************************************/ 1494/** Coro ********************************************************************/
1506 1495
1507static void 1496INLINE void
1508coro_enq (pTHX_ SV *coro_sv) 1497coro_enq (pTHX_ struct coro *coro)
1509{ 1498{
1510 av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); 1499 av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv));
1511} 1500}
1512 1501
1513static SV * 1502INLINE SV *
1514coro_deq (pTHX) 1503coro_deq (pTHX)
1515{ 1504{
1516 int prio; 1505 int prio;
1517 1506
1518 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) 1507 for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; )
… …
1537 if (coro->flags & CF_READY) 1526 if (coro->flags & CF_READY)
1538 return 0; 1527 return 0;
1539 1528
1540 coro->flags |= CF_READY; 1529 coro->flags |= CF_READY;
1541 1530
1542 LOCK;
1543
1544 sv_hook = coro_nready ? 0 : coro_readyhook; 1531 sv_hook = coro_nready ? 0 : coro_readyhook;
1545 xs_hook = coro_nready ? 0 : coroapi.readyhook; 1532 xs_hook = coro_nready ? 0 : coroapi.readyhook;
1546 1533
1547 coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); 1534 coro_enq (aTHX_ coro);
1548 ++coro_nready; 1535 ++coro_nready;
1549 1536
1550 UNLOCK;
1551
1552 if (sv_hook) 1537 if (sv_hook)
1553 { 1538 {
1554 dSP; 1539 dSP;
1555 1540
1556 ENTER; 1541 ENTER;
… …
1582{ 1567{
1583 SV *prev_sv, *next_sv; 1568 SV *prev_sv, *next_sv;
1584 1569
1585 for (;;) 1570 for (;;)
1586 { 1571 {
1587 LOCK;
1588 next_sv = coro_deq (aTHX); 1572 next_sv = coro_deq (aTHX);
1589 1573
1590 /* nothing to schedule: call the idle handler */ 1574 /* nothing to schedule: call the idle handler */
1591 if (expect_false (!next_sv)) 1575 if (expect_false (!next_sv))
1592 { 1576 {
1593 dSP; 1577 dSP;
1594 UNLOCK;
1595 1578
1596 ENTER; 1579 ENTER;
1597 SAVETMPS; 1580 SAVETMPS;
1598 1581
1599 PUSHMARK (SP); 1582 PUSHMARK (SP);
… …
1604 FREETMPS; 1587 FREETMPS;
1605 LEAVE; 1588 LEAVE;
1606 continue; 1589 continue;
1607 } 1590 }
1608 1591
1609 ta->next = SvSTATE (next_sv); 1592 ta->next = SvSTATE_hv (next_sv);
1610 1593
1611 /* cannot transfer to destroyed coros, skip and look for next */ 1594 /* cannot transfer to destroyed coros, skip and look for next */
1612 if (expect_false (ta->next->flags & CF_DESTROYED)) 1595 if (expect_false (ta->next->flags & CF_DESTROYED))
1613 { 1596 {
1614 UNLOCK;
1615 SvREFCNT_dec (next_sv); 1597 SvREFCNT_dec (next_sv);
1616 /* coro_nready has already been taken care of by destroy */ 1598 /* coro_nready has already been taken care of by destroy */
1617 continue; 1599 continue;
1618 } 1600 }
1619 1601
1620 --coro_nready; 1602 --coro_nready;
1621 UNLOCK;
1622 break; 1603 break;
1623 } 1604 }
1624 1605
1625 /* free this only after the transfer */ 1606 /* free this only after the transfer */
1626 prev_sv = SvRV (coro_current); 1607 prev_sv = SvRV (coro_current);
1627 ta->prev = SvSTATE (prev_sv); 1608 ta->prev = SvSTATE_hv (prev_sv);
1628 TRANSFER_CHECK (*ta); 1609 TRANSFER_CHECK (*ta);
1629 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); 1610 assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY));
1630 ta->next->flags &= ~CF_READY; 1611 ta->next->flags &= ~CF_READY;
1631 SvRV_set (coro_current, next_sv); 1612 SvRV_set (coro_current, next_sv);
1632 1613
1633 LOCK;
1634 free_coro_mortal (aTHX); 1614 free_coro_mortal (aTHX);
1635 coro_mortal = prev_sv; 1615 coro_mortal = prev_sv;
1636 UNLOCK;
1637} 1616}
1638 1617
1639INLINE void 1618INLINE void
1640prepare_cede (pTHX_ struct coro_transfer_args *ta) 1619prepare_cede (pTHX_ struct coro_transfer_args *ta)
1641{ 1620{
… …
1797 PerlIOBuf_set_ptrcnt, 1776 PerlIOBuf_set_ptrcnt,
1798}; 1777};
1799 1778
1800/*****************************************************************************/ 1779/*****************************************************************************/
1801 1780
1802static const CV *slf_cv; /* for quick consistency check */
1803
1804static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ 1781static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */
1782static const CV *slf_cv;
1805static SV *slf_arg0; 1783static SV **slf_argv;
1806static SV *slf_arg1; 1784static int slf_argc, slf_arga; /* count, allocated */
1807static SV *slf_arg2; 1785static I32 slf_ax; /* top of stack, for restore */
1808 1786
1809/* this restores the stack in the case we patched the entersub, to */ 1787/* this restores the stack in the case we patched the entersub, to */
1810/* recreate the stack frame as perl will on following calls */ 1788/* recreate the stack frame as perl will on following calls */
1811/* since entersub cleared the stack */ 1789/* since entersub cleared the stack */
1812static OP * 1790static OP *
1813pp_restore (pTHX) 1791pp_restore (pTHX)
1814{ 1792{
1815 dSP; 1793 int i;
1794 SV **SP = PL_stack_base + slf_ax;
1816 1795
1817 PUSHMARK (SP); 1796 PUSHMARK (SP);
1818 1797
1819 EXTEND (SP, 3); 1798 EXTEND (SP, slf_argc + 1);
1799
1800 for (i = 0; i < slf_argc; ++i)
1820 if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); 1801 PUSHs (sv_2mortal (slf_argv [i]));
1821 if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); 1802
1822 if (slf_arg2) PUSHs (sv_2mortal (slf_arg2));
1823 PUSHs ((SV *)CvGV (slf_cv)); 1803 PUSHs ((SV *)CvGV (slf_cv));
1824 1804
1825 RETURNOP (slf_restore.op_first); 1805 RETURNOP (slf_restore.op_first);
1826} 1806}
1827 1807
… …
1830{ 1810{
1831 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); 1811 prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data);
1832} 1812}
1833 1813
1834static void 1814static void
1835slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, SV **arg, int items) 1815slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1836{ 1816{
1837 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); 1817 assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1));
1838 1818
1839 frame->prepare = slf_prepare_set_stacklevel; 1819 frame->prepare = slf_prepare_set_stacklevel;
1840 frame->check = slf_check_nop; 1820 frame->check = slf_check_nop;
… …
1848 1828
1849 prepare_transfer (aTHX_ ta, arg [0], arg [1]); 1829 prepare_transfer (aTHX_ ta, arg [0], arg [1]);
1850} 1830}
1851 1831
1852static void 1832static void
1853slf_init_transfer (pTHX_ struct CoroSLF *frame, SV **arg, int items) 1833slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1854{ 1834{
1855 if (items != 2) 1835 if (items != 2)
1856 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); 1836 croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items);
1857 1837
1858 frame->prepare = slf_prepare_transfer; 1838 frame->prepare = slf_prepare_transfer;
1859 frame->check = slf_check_nop; 1839 frame->check = slf_check_nop;
1860 frame->data = (void *)arg; /* let's hope it will stay valid */ 1840 frame->data = (void *)arg; /* let's hope it will stay valid */
1861} 1841}
1862 1842
1863static void 1843static void
1864slf_init_schedule (pTHX_ struct CoroSLF *frame, SV **arg, int items) 1844slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1865{ 1845{
1866 frame->prepare = prepare_schedule; 1846 frame->prepare = prepare_schedule;
1867 frame->check = slf_check_nop; 1847 frame->check = slf_check_nop;
1868} 1848}
1869 1849
1870static void 1850static void
1871slf_init_cede (pTHX_ struct CoroSLF *frame, SV **arg, int items) 1851slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1872{ 1852{
1873 frame->prepare = prepare_cede; 1853 frame->prepare = prepare_cede;
1874 frame->check = slf_check_nop; 1854 frame->check = slf_check_nop;
1875} 1855}
1876 1856
1877static void 1857static void
1878slf_init_cede_notself (pTHX_ struct CoroSLF *frame, SV **arg, int items) 1858slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
1879{ 1859{
1880 frame->prepare = prepare_cede_notself; 1860 frame->prepare = prepare_cede_notself;
1881 frame->check = slf_check_nop; 1861 frame->check = slf_check_nop;
1882} 1862}
1883 1863
… …
1909 /* do a quick consistency check on the "function" object, and if it isn't */ 1889 /* do a quick consistency check on the "function" object, and if it isn't */
1910 /* for us, divert to the real entersub */ 1890 /* for us, divert to the real entersub */
1911 if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) 1891 if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF))
1912 return PL_ppaddr[OP_ENTERSUB](aTHX); 1892 return PL_ppaddr[OP_ENTERSUB](aTHX);
1913 1893
1914 /* pop args */
1915 SP = PL_stack_base + POPMARK;
1916
1917 if (!(PL_op->op_flags & OPf_STACKED)) 1894 if (!(PL_op->op_flags & OPf_STACKED))
1918 { 1895 {
1919 /* ampersand-form of call, use @_ instead of stack */ 1896 /* ampersand-form of call, use @_ instead of stack */
1920 AV *av = GvAV (PL_defgv); 1897 AV *av = GvAV (PL_defgv);
1921 arg = AvARRAY (av); 1898 arg = AvARRAY (av);
1922 items = AvFILLp (av) + 1; 1899 items = AvFILLp (av) + 1;
1923 } 1900 }
1924 1901
1902 /* now call the init function, which needs to set up slf_frame */
1903 ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr)
1904 (aTHX_ &slf_frame, GvCV (gv), arg, items);
1905
1906 /* pop args */
1907 SP = PL_stack_base + POPMARK;
1908
1925 PUTBACK; 1909 PUTBACK;
1926
1927 ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, arg, items);
1928 } 1910 }
1929 1911
1930 /* now interpret the slf_frame */ 1912 /* now that we have a slf_frame, interpret it! */
1931 /* we use a callback system not to make the code needlessly */ 1913 /* we use a callback system not to make the code needlessly */
1932 /* complicated, but so we can run multiple perl coros from one cctx */ 1914 /* complicated, but so we can run multiple perl coros from one cctx */
1933 1915
1934 do 1916 do
1935 { 1917 {
… …
1940 1922
1941 checkmark = PL_stack_sp - PL_stack_base; 1923 checkmark = PL_stack_sp - PL_stack_base;
1942 } 1924 }
1943 while (slf_frame.check (aTHX_ &slf_frame)); 1925 while (slf_frame.check (aTHX_ &slf_frame));
1944 1926
1927 slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */
1928
1929 /* return value handling - mostly like entersub */
1945 { 1930 {
1946 dSP; 1931 dSP;
1947 SV **bot = PL_stack_base + checkmark; 1932 SV **bot = PL_stack_base + checkmark;
1948 int gimme = GIMME_V; 1933 int gimme = GIMME_V;
1949
1950 slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */
1951 1934
1952 /* make sure we put something on the stack in scalar context */ 1935 /* make sure we put something on the stack in scalar context */
1953 if (gimme == G_SCALAR) 1936 if (gimme == G_SCALAR)
1954 { 1937 {
1955 if (sp == bot) 1938 if (sp == bot)
… …
1959 } 1942 }
1960 1943
1961 PUTBACK; 1944 PUTBACK;
1962 } 1945 }
1963 1946
1947 /* exception handling */
1948 if (expect_false (coro_throw))
1949 {
1950 SV *exception = sv_2mortal (coro_throw);
1951
1952 coro_throw = 0;
1953 sv_setsv (ERRSV, exception);
1954 croak (0);
1955 }
1956
1964 return NORMAL; 1957 return NORMAL;
1965} 1958}
1966 1959
1967static void 1960static void
1968api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) 1961api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax)
1969{ 1962{
1963 int i;
1964 SV **arg = PL_stack_base + ax;
1965 int items = PL_stack_sp - arg + 1;
1966
1970 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); 1967 assert (("FATAL: SLF call with illegal CV value", !CvANON (cv)));
1971 1968
1972 if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] 1969 if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB]
1973 && PL_op->op_ppaddr != pp_slf) 1970 && PL_op->op_ppaddr != pp_slf)
1974 croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); 1971 croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught");
1975 1972
1976 if (items > 3)
1977 croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items);
1978
1979 CvFLAGS (cv) |= CVf_SLF; 1973 CvFLAGS (cv) |= CVf_SLF;
1980 CvXSUBANY (cv).any_ptr = (void *)init_cb; 1974 CvXSUBANY (cv).any_ptr = (void *)init_cb;
1981 slf_cv = cv; 1975 slf_cv = cv;
1982 1976
1983 /* we patch the op, and then re-run the whole call */ 1977 /* we patch the op, and then re-run the whole call */
1984 /* we have to put the same argument on the stack for this to work */ 1978 /* we have to put the same argument on the stack for this to work */
1985 /* and this will be done by pp_restore */ 1979 /* and this will be done by pp_restore */
1986 slf_restore.op_next = (OP *)&slf_restore; 1980 slf_restore.op_next = (OP *)&slf_restore;
1987 slf_restore.op_type = OP_NULL; 1981 slf_restore.op_type = OP_CUSTOM;
1988 slf_restore.op_ppaddr = pp_restore; 1982 slf_restore.op_ppaddr = pp_restore;
1989 slf_restore.op_first = PL_op; 1983 slf_restore.op_first = PL_op;
1990 1984
1991 slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; 1985 slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */
1992 slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; 1986
1993 slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; 1987 if (PL_op->op_flags & OPf_STACKED)
1988 {
1989 if (items > slf_arga)
1990 {
1991 slf_arga = items;
1992 free (slf_argv);
1993 slf_argv = malloc (slf_arga * sizeof (SV *));
1994 }
1995
1996 slf_argc = items;
1997
1998 for (i = 0; i < items; ++i)
1999 slf_argv [i] = SvREFCNT_inc (arg [i]);
2000 }
2001 else
2002 slf_argc = 0;
1994 2003
1995 PL_op->op_ppaddr = pp_slf; 2004 PL_op->op_ppaddr = pp_slf;
2005 PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */
1996 2006
1997 PL_op = (OP *)&slf_restore; 2007 PL_op = (OP *)&slf_restore;
1998} 2008}
1999 2009
2000/*****************************************************************************/ 2010/*****************************************************************************/
2011
2012static void
2013coro_semaphore_adjust (pTHX_ AV *av, IV adjust)
2014{
2015 SV *count_sv = AvARRAY (av)[0];
2016 IV count = SvIVX (count_sv);
2017
2018 count += adjust;
2019 SvIVX (count_sv) = count;
2020
2021 /* now wake up as many waiters as are expected to lock */
2022 while (count > 0 && AvFILLp (av) > 0)
2023 {
2024 SV *cb;
2025
2026 /* swap first two elements so we can shift a waiter */
2027 AvARRAY (av)[0] = AvARRAY (av)[1];
2028 AvARRAY (av)[1] = count_sv;
2029 cb = av_shift (av);
2030
2031 if (SvOBJECT (cb))
2032 api_ready (aTHX_ cb);
2033 else
2034 croak ("callbacks not yet supported");
2035
2036 SvREFCNT_dec (cb);
2037
2038 --count;
2039 }
2040}
2041
2042static void
2043coro_semaphore_on_destroy (pTHX_ struct coro *coro)
2044{
2045 /* call $sem->adjust (0) to possibly wake up some other waiters */
2046 coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0);
2047}
2001 2048
2002static int 2049static int
2003slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) 2050slf_check_semaphore_down (pTHX_ struct CoroSLF *frame)
2004{ 2051{
2005 AV *av = (AV *)frame->data; 2052 AV *av = (AV *)frame->data;
2006 SV *count_sv = AvARRAY (av)[0]; 2053 SV *count_sv = AvARRAY (av)[0];
2007 2054
2008 if (SvIVX (count_sv) > 0) 2055 if (SvIVX (count_sv) > 0)
2009 { 2056 {
2057 SvSTATE_current->on_destroy = 0;
2010 SvIVX (count_sv) = SvIVX (count_sv) - 1; 2058 SvIVX (count_sv) = SvIVX (count_sv) - 1;
2011 return 0; 2059 return 0;
2012 } 2060 }
2013 else 2061 else
2014 { 2062 {
… …
2025 return 1; 2073 return 1;
2026 } 2074 }
2027} 2075}
2028 2076
2029static void 2077static void
2030slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, SV **arg, int items) 2078slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items)
2031{ 2079{
2032 AV *av = (AV *)SvRV (arg [0]); 2080 AV *av = (AV *)SvRV (arg [0]);
2033 2081
2034 if (SvIVX (AvARRAY (av)[0]) > 0) 2082 if (SvIVX (AvARRAY (av)[0]) > 0)
2035 { 2083 {
2036 frame->data = (void *)av; 2084 frame->data = (void *)av;
2037 frame->prepare = prepare_nop; 2085 frame->prepare = prepare_nop;
2086 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2038 } 2087 }
2039 else 2088 else
2040 { 2089 {
2041 av_push (av, SvREFCNT_inc (SvRV (coro_current))); 2090 av_push (av, SvREFCNT_inc (SvRV (coro_current)));
2042 2091
2043 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); 2092 frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av));
2044 frame->prepare = prepare_schedule; 2093 frame->prepare = prepare_schedule;
2094
2095 /* to avoid race conditions when a woken-up coro gets terminated */
2096 /* we arrange for a temporary on_destroy that calls adjust (0) */
2097 assert (!SvSTATE_current->on_destroy);//D
2098 SvSTATE_current->on_destroy = coro_semaphore_on_destroy;
2045 } 2099 }
2046 2100
2047 frame->check = slf_check_semaphore_down; 2101 frame->check = slf_check_semaphore_down;
2048 2102
2049} 2103}
… …
2077PROTOTYPES: DISABLE 2131PROTOTYPES: DISABLE
2078 2132
2079BOOT: 2133BOOT:
2080{ 2134{
2081#ifdef USE_ITHREADS 2135#ifdef USE_ITHREADS
2082 MUTEX_INIT (&coro_lock);
2083# if CORO_PTHREAD 2136# if CORO_PTHREAD
2084 coro_thx = PERL_GET_CONTEXT; 2137 coro_thx = PERL_GET_CONTEXT;
2085# endif 2138# endif
2086#endif 2139#endif
2087 BOOT_PAGESIZE; 2140 BOOT_PAGESIZE;
… …
2107 main_mainstack = PL_mainstack; 2160 main_mainstack = PL_mainstack;
2108 main_top_env = PL_top_env; 2161 main_top_env = PL_top_env;
2109 2162
2110 while (main_top_env->je_prev) 2163 while (main_top_env->je_prev)
2111 main_top_env = main_top_env->je_prev; 2164 main_top_env = main_top_env->je_prev;
2165
2166 {
2167 SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf)));
2168
2169 if (!PL_custom_op_names) PL_custom_op_names = newHV ();
2170 hv_store_ent (PL_custom_op_names, slf,
2171 newSVpv ("coro_slf", 0), 0);
2172
2173 if (!PL_custom_op_descs) PL_custom_op_descs = newHV ();
2174 hv_store_ent (PL_custom_op_descs, slf,
2175 newSVpv ("coro schedule like function", 0), 0);
2176 }
2112 2177
2113 coroapi.ver = CORO_API_VERSION; 2178 coroapi.ver = CORO_API_VERSION;
2114 coroapi.rev = CORO_API_REVISION; 2179 coroapi.rev = CORO_API_REVISION;
2115 2180
2116 coroapi.transfer = api_transfer; 2181 coroapi.transfer = api_transfer;
… …
2164 RETVAL 2229 RETVAL
2165 2230
2166void 2231void
2167_set_stacklevel (...) 2232_set_stacklevel (...)
2168 CODE: 2233 CODE:
2169 api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); 2234 CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel);
2170 2235
2171void 2236void
2172transfer (...) 2237transfer (...)
2173 PROTOTYPE: $$ 2238 PROTOTYPE: $$
2174 CODE: 2239 CODE:
2175 api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); 2240 CORO_EXECUTE_SLF_XS (slf_init_transfer);
2176 2241
2177bool 2242bool
2178_destroy (SV *coro_sv) 2243_destroy (SV *coro_sv)
2179 CODE: 2244 CODE:
2180 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); 2245 RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv));
… …
2298 2363
2299void 2364void
2300throw (Coro::State self, SV *throw = &PL_sv_undef) 2365throw (Coro::State self, SV *throw = &PL_sv_undef)
2301 PROTOTYPE: $;$ 2366 PROTOTYPE: $;$
2302 CODE: 2367 CODE:
2368{
2369 struct coro *current = SvSTATE_current;
2370 SV **throwp = self == current ? &coro_throw : &self->throw;
2303 SvREFCNT_dec (self->throw); 2371 SvREFCNT_dec (*throwp);
2304 self->throw = SvOK (throw) ? newSVsv (throw) : 0; 2372 *throwp = SvOK (throw) ? newSVsv (throw) : 0;
2373}
2305 2374
2306void 2375void
2307api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) 2376api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB)
2308 PROTOTYPE: $;$ 2377 PROTOTYPE: $;$
2309 C_ARGS: aTHX_ coro, flags 2378 C_ARGS: aTHX_ coro, flags
… …
2340 2409
2341void 2410void
2342force_cctx () 2411force_cctx ()
2343 PROTOTYPE: 2412 PROTOTYPE:
2344 CODE: 2413 CODE:
2345 struct coro *coro = SvSTATE (coro_current);
2346 coro->cctx->idle_sp = 0; 2414 SvSTATE_current->cctx->idle_sp = 0;
2347 2415
2348void 2416void
2349swap_defsv (Coro::State self) 2417swap_defsv (Coro::State self)
2350 PROTOTYPE: $ 2418 PROTOTYPE: $
2351 ALIAS: 2419 ALIAS:
… …
2404} 2472}
2405 2473
2406void 2474void
2407schedule (...) 2475schedule (...)
2408 CODE: 2476 CODE:
2409 api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); 2477 CORO_EXECUTE_SLF_XS (slf_init_schedule);
2410 2478
2411void 2479void
2412cede (...) 2480cede (...)
2413 CODE: 2481 CODE:
2414 api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); 2482 CORO_EXECUTE_SLF_XS (slf_init_cede);
2415 2483
2416void 2484void
2417cede_notself (...) 2485cede_notself (...)
2418 CODE: 2486 CODE:
2419 api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); 2487 CORO_EXECUTE_SLF_XS (slf_init_cede_notself);
2420 2488
2421void 2489void
2422_set_current (SV *current) 2490_set_current (SV *current)
2423 PROTOTYPE: $ 2491 PROTOTYPE: $
2424 CODE: 2492 CODE:
… …
2427 2495
2428void 2496void
2429_set_readyhook (SV *hook) 2497_set_readyhook (SV *hook)
2430 PROTOTYPE: $ 2498 PROTOTYPE: $
2431 CODE: 2499 CODE:
2432 LOCK;
2433 SvREFCNT_dec (coro_readyhook); 2500 SvREFCNT_dec (coro_readyhook);
2434 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; 2501 coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0;
2435 UNLOCK;
2436 2502
2437int 2503int
2438prio (Coro::State coro, int newprio = 0) 2504prio (Coro::State coro, int newprio = 0)
2439 PROTOTYPE: $;$ 2505 PROTOTYPE: $;$
2440 ALIAS: 2506 ALIAS:
… …
2476# for async_pool speedup 2542# for async_pool speedup
2477void 2543void
2478_pool_1 (SV *cb) 2544_pool_1 (SV *cb)
2479 CODE: 2545 CODE:
2480{ 2546{
2481 struct coro *coro = SvSTATE (coro_current);
2482 HV *hv = (HV *)SvRV (coro_current); 2547 HV *hv = (HV *)SvRV (coro_current);
2548 struct coro *coro = SvSTATE_hv ((SV *)hv);
2483 AV *defav = GvAV (PL_defgv); 2549 AV *defav = GvAV (PL_defgv);
2484 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); 2550 SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0);
2485 AV *invoke_av; 2551 AV *invoke_av;
2486 int i, len; 2552 int i, len;
2487 2553
… …
2514 2580
2515void 2581void
2516_pool_2 (SV *cb) 2582_pool_2 (SV *cb)
2517 CODE: 2583 CODE:
2518{ 2584{
2519 struct coro *coro = SvSTATE (coro_current); 2585 HV *hv = (HV *)SvRV (coro_current);
2586 struct coro *coro = SvSTATE_hv ((SV *)hv);
2520 2587
2521 sv_setsv (cb, &PL_sv_undef); 2588 sv_setsv (cb, &PL_sv_undef);
2522 2589
2523 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; 2590 SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh;
2524 coro->saved_deffh = 0; 2591 coro->saved_deffh = 0;
… …
2531 SvREFCNT_dec (old); 2598 SvREFCNT_dec (old);
2532 croak ("\3async_pool terminate\2\n"); 2599 croak ("\3async_pool terminate\2\n");
2533 } 2600 }
2534 2601
2535 av_clear (GvAV (PL_defgv)); 2602 av_clear (GvAV (PL_defgv));
2536 hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, 2603 hv_store (hv, "desc", sizeof ("desc") - 1,
2537 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); 2604 newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0);
2538 2605
2539 coro->prio = 0; 2606 coro->prio = 0;
2540 2607
2541 if (coro->cctx && (coro->cctx->flags & CC_TRACE)) 2608 if (coro->cctx && (coro->cctx->flags & CC_TRACE))
… …
2656void 2723void
2657up (SV *self, int adjust = 1) 2724up (SV *self, int adjust = 1)
2658 ALIAS: 2725 ALIAS:
2659 adjust = 1 2726 adjust = 1
2660 CODE: 2727 CODE:
2661{ 2728 coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1);
2662 AV *av = (AV *)SvRV (self);
2663 SV *count_sv = AvARRAY (av)[0];
2664 IV count = SvIVX (count_sv);
2665
2666 count += ix ? adjust : 1;
2667 SvIVX (count_sv) = count;
2668
2669 /* now wake up as many waiters as possible */
2670 while (count > 0 && AvFILLp (av) >= count)
2671 {
2672 SV *cb;
2673
2674 /* swap first two elements so we can shift a waiter */
2675 AvARRAY (av)[0] = AvARRAY (av)[1];
2676 AvARRAY (av)[1] = count_sv;
2677 cb = av_shift (av);
2678
2679 if (SvOBJECT (cb))
2680 api_ready (aTHX_ cb);
2681 else
2682 croak ("callbacks not yet supported");
2683
2684 SvREFCNT_dec (cb);
2685 }
2686}
2687 2729
2688void 2730void
2689down (SV *self) 2731down (SV *self)
2690 CODE: 2732 CODE:
2691 api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); 2733 CORO_EXECUTE_SLF_XS (slf_init_semaphore_down);
2692 2734
2693void 2735void
2694try (SV *self) 2736try (SV *self)
2695 PPCODE: 2737 PPCODE:
2696{ 2738{

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